From 63285e3c254987576709672278b25459d6329afb Mon Sep 17 00:00:00 2001
From: cvs2git
Date: Tue, 20 Jun 2006 00:37:33 +0000
Subject: This commit was manufactured by cvs2svn to create tag 'SLAC-R1-3'.
Sprout from master 2006-06-20 00:37:32 UTC Eric Norum 'Updated non-CEXP version.'
Delete:
ChangeLog
README
RTEMS_Makefiles/Makefile.avl
RTEMS_Makefiles/Makefile.bfd
RTEMS_Makefiles/Makefile.common
RTEMS_Makefiles/Makefile.libtecla
RTEMS_Makefiles/Makefile.ncurses
RTEMS_Makefiles/Makefile.ncurses-5.3
RTEMS_Makefiles/Makefile.readline-4.3
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RTEMS_Makefiles/Makefile.zlib
SUPPORT
VERSION
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ncurses-5.3/form/frm_cursor.c
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ncurses-5.3/form/frm_page.c
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ncurses-5.3/form/frm_req_name.c
ncurses-5.3/form/frm_scale.c
ncurses-5.3/form/frm_sub.c
ncurses-5.3/form/frm_user.c
ncurses-5.3/form/frm_win.c
ncurses-5.3/form/fty_alnum.c
ncurses-5.3/form/fty_alpha.c
ncurses-5.3/form/fty_enum.c
ncurses-5.3/form/fty_int.c
ncurses-5.3/form/fty_ipv4.c
ncurses-5.3/form/fty_num.c
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ncurses-5.3/include/Caps.osf1r5
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---
ChangeLog | 97 -
README | 24 -
RTEMS_Makefiles/Makefile.avl | 12 -
RTEMS_Makefiles/Makefile.bfd | 14 -
RTEMS_Makefiles/Makefile.common | 23 -
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diff --git a/ChangeLog b/ChangeLog
deleted file mode 100644
index a8c7638..0000000
--- a/ChangeLog
+++ /dev/null
@@ -1,97 +0,0 @@
-2006-04-19 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-4.6.99.3.
-
-2005-09-02 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-4.6.99.2.
-
-2005-09-02 Joel Sherrill
-
- * bit, ncurses-5.3/misc/run_tic.sh: Added rtemsNfs 1.2
- * rtemsNfs/ChangeLog, rtemsNfs/LICENSE, rtemsNfs/Makefile,
- rtemsNfs/README, rtemsNfs/rtems-filesystem-patch,
- rtemsNfs/proto/Makefile, rtemsNfs/proto/mount_prot.h,
- rtemsNfs/proto/mount_prot.x, rtemsNfs/proto/mount_prot_xdr.c,
- rtemsNfs/proto/nfs_prot.h, rtemsNfs/proto/nfs_prot.x,
- rtemsNfs/proto/nfs_prot_xdr.c, rtemsNfs/src/Makefile,
- rtemsNfs/src/cexphelp.c, rtemsNfs/src/dirutils.c,
- rtemsNfs/src/librtemsNfs.h, rtemsNfs/src/nfs.c,
- rtemsNfs/src/nfs.modini.c, rtemsNfs/src/rpcio.c,
- rtemsNfs/src/rpcio.h, rtemsNfs/src/rpcio.modini.c,
- rtemsNfs/src/sock_mbuf.c, rtemsNfs/src/xdr_mbuf.c: New files.
- * rtemsNfs-1.1/ChangeLog, rtemsNfs-1.1/LICENSE, rtemsNfs-1.1/Makefile,
- rtemsNfs-1.1/README, rtemsNfs-1.1/rtems-filesystem-patch,
- rtemsNfs-1.1/proto/Makefile, rtemsNfs-1.1/proto/mount_prot.x,
- rtemsNfs-1.1/proto/nfs_prot.x, rtemsNfs-1.1/src/Makefile,
- rtemsNfs-1.1/src/cexphelp.c, rtemsNfs-1.1/src/dirutils.c,
- rtemsNfs-1.1/src/librtemsNfs.h, rtemsNfs-1.1/src/nfs.c,
- rtemsNfs-1.1/src/nfs.modini.c, rtemsNfs-1.1/src/rpcio.c,
- rtemsNfs-1.1/src/rpcio.h, rtemsNfs-1.1/src/rpcio.modini.c,
- rtemsNfs-1.1/src/sock_mbuf.c, rtemsNfs-1.1/src/xdr_mbuf.c: Removed.
-
-2004-10-18 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-4.6.2.
-
-2004-10-18 Joel Sherrill
-
- * aclocal/version.m4: Updated to rtems-addon-packages-4.6.2.
-
-2003-01-28 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-20030128.
-
-2003-01-28 Joel Sherrill
-
- * aclocal/version.m4: Updated to rtems-addon-packages-20030128.
-
-2003-01-20 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-20030120.
-
-2003-01-20 Joel Sherrill
-
- * aclocal/version.m4: Updated to rtems-addon-packages-20030120.
-
-2002-12-19 Eric Norum
-
- * ncurses-5.3 bit: Update ncurses add-on package.
-
-2002-11-28 Eric Norum
-
- * RTEMS_Makefiles/Makefile.bfd: New file
-
-2002-11-21 Eric Norum
-
- * bit, bit_bfd: Add support for additional add-ons (libtecla, BFD)
-
-2002-11-19 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-20021119.
-
-2002-11-19 Joel Sherrill
-
- * aclocal/version.m4: Updated to rtems-addon-packages-20021119.
-
-2002-11-08 Eric Norum
-
- * RTEMS_Makefiles/Makefile.libtecla, bit, libtecla-1.4.1/:
- Add TECLA command-line editing library.
-
-2002-09-12 Eric Norum
-
- * RTEMS_Makefiles/Makefile.ncurses: Added ansi terminal type.
-
-2002-07-30 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-20020730a.
-
-2002-07-30 Joel Sherrill
-
- * VERSION: Updated to rtems-addon-packages-20020730.
-
-2002-07-30 Joel Sherrill
-
- * ChangeLog, VERSION, SUPPORT: New files.
-
diff --git a/README b/README
deleted file mode 100644
index 504f048..0000000
--- a/README
+++ /dev/null
@@ -1,24 +0,0 @@
-Assorted add-on packages for RTEMS.
-
-The bit script builds and installs all the packages.
-
-To build a package:
- cd <>
- make -f ../RTEMS_Makefiles/Makefile.<>
-
-Notes
-=====
-1) You must build and install the host version of infocmp before trying to
-build ncurses.
-2) You must build and install ncurses before trying to build readline.
-3) To add ncurses support for other terminals, change the declaration
- of TERMINALS.
-
-Cautions
-========
-The readline and ncurses `configure' scripts check for the presence of
-select(). Because the RTEMS dummy.rel file does not include network
-configuration information the scripts decide that select() does not
-exist. This is correct since although RTEMS does have a select() call
-it is not supported on tty devices. The fact that one shortcoming is
-covering up another is not really satisfactory, though.
diff --git a/RTEMS_Makefiles/Makefile.avl b/RTEMS_Makefiles/Makefile.avl
deleted file mode 100644
index b801392..0000000
--- a/RTEMS_Makefiles/Makefile.avl
+++ /dev/null
@@ -1,12 +0,0 @@
-#
-# Configure/build/install the AVL library
-#
-include ../RTEMS_Makefiles/Makefile.common
-
-all:
- ./configure \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include
- make
- make install
diff --git a/RTEMS_Makefiles/Makefile.bfd b/RTEMS_Makefiles/Makefile.bfd
deleted file mode 100644
index b6b9586..0000000
--- a/RTEMS_Makefiles/Makefile.bfd
+++ /dev/null
@@ -1,14 +0,0 @@
-#
-# Configure/build/install the libtecla library
-#
-include ../RTEMS_Makefiles/Makefile.common
-
-all:
- $(BINUTILS_SRC_DIR)/bfd/configure \
- --host=$(RTEMS_CPU)-rtems \
- --disable-nls \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include
- make
- make install
diff --git a/RTEMS_Makefiles/Makefile.common b/RTEMS_Makefiles/Makefile.common
deleted file mode 100644
index 7e0ddbe..0000000
--- a/RTEMS_Makefiles/Makefile.common
+++ /dev/null
@@ -1,23 +0,0 @@
-###########################################################
-# Meta-Makefile for compiling packages to work with RTEMS #
-###########################################################
-
-#
-# Pick up RTEMS configuration
-#
-include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
-include $(RTEMS_CUSTOM)
-include $(PROJECT_ROOT)/make/leaf.cfg
-CC += $(CPU_CFLAGS)
-
-#
-# For some reason RTEMS Makefiles don't export this
-#
-export RANLIB
-
-.PHONY: all
-
-#
-# Include site-specific options
-#
-include ../RTEMS_Makefiles/Makefile.site
diff --git a/RTEMS_Makefiles/Makefile.libtecla b/RTEMS_Makefiles/Makefile.libtecla
deleted file mode 100644
index 2405adb..0000000
--- a/RTEMS_Makefiles/Makefile.libtecla
+++ /dev/null
@@ -1,15 +0,0 @@
-#
-# Configure/build/install the libtecla library
-#
-include ../RTEMS_Makefiles/Makefile.common
-
-all:
- ./configure \
- --host=$(RTEMS_CPU)-rtems \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include
- make
- make reentrant
- make install
- make distclean
diff --git a/RTEMS_Makefiles/Makefile.ncurses b/RTEMS_Makefiles/Makefile.ncurses
deleted file mode 100644
index 3df6d38..0000000
--- a/RTEMS_Makefiles/Makefile.ncurses
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Declare supported terminal types.
-# This value can be augmented/overridden by the site-configuration file
-#
-TERMINALS=xterm,vt100,linux,ansi
-
-include ../RTEMS_Makefiles/Makefile.common
-
-#
-# The following will work only if you have the latest ncurses version
-# of infocmp installed before trying to build for an RTEMS target.
-# The cf_cv_type_of_bool hack works around a bug when configuring
-# for a cross-target.
-#
-all:
- cf_cv_type_of_bool=char CXX="$(CC)" TERM=xterm ./configure \
- --host=$(RTEMS_CPU)-rtems \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include \
- --without-ada \
- --without-progs \
- --without-cxx-binding \
- --disable-sigwinch \
- --disable-database \
- --with-fallbacks="$(TERMINALS)"
- make "TERM=xterm" "HOSTCC=gcc" "HOSTCCFLAGS=-I. -I../include" HOSTLDFLAGS=""
- make install
diff --git a/RTEMS_Makefiles/Makefile.ncurses-5.3 b/RTEMS_Makefiles/Makefile.ncurses-5.3
deleted file mode 100644
index 24c5428..0000000
--- a/RTEMS_Makefiles/Makefile.ncurses-5.3
+++ /dev/null
@@ -1,30 +0,0 @@
-#
-# Declare supported terminal types.
-# This value can be augmented/overridden by the site-configuration file
-#
-TERMINALS=xterm,vt100,linux,ansi
-
-include ../RTEMS_Makefiles/Makefile.common
-
-#
-# The following will work only if you have the latest ncurses version
-# of infocmp installed before trying to build for an RTEMS target.
-# The cf_cv_type_of_bool hack works around a bug when configuring
-# for a cross-target.
- #cf_cv_type_of_bool=char CXX="$(CC)" ./configure \
-#
-all:
- CXX="$(CC)" TERM=xterm ./configure \
- --host=$(RTEMS_CPU)-rtems \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include \
- --without-ada \
- --without-progs \
- --without-cxx-binding \
- --with-bool="unsigned char" \
- --disable-sigwinch \
- --disable-database \
- --with-fallbacks="$(TERMINALS)"
- make "TERM=xterm" "HOSTCC=gcc" "HOSTCCFLAGS=-I. -I../include" HOSTLDFLAGS=""
- make install
diff --git a/RTEMS_Makefiles/Makefile.readline-4.3 b/RTEMS_Makefiles/Makefile.readline-4.3
deleted file mode 100644
index 36644d2..0000000
--- a/RTEMS_Makefiles/Makefile.readline-4.3
+++ /dev/null
@@ -1,18 +0,0 @@
-include ../RTEMS_Makefiles/Makefile.common
-
-#
-# Running make distclean cleans up documentation files that require
-# special tools to regenerate. Work around this problem by just
-# copying the documentation files from another directory.
-#
-all:
- bash_cv_have_mbstate_t=yes ./configure \
- --host=$(RTEMS_CPU)-rtems \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include \
- --disable-shared
- cp ../readline-doc-4.3/doc/????* doc
- make
- cd doc ; make
- make install
diff --git a/RTEMS_Makefiles/Makefile.site b/RTEMS_Makefiles/Makefile.site
deleted file mode 100644
index 2c9f3a4..0000000
--- a/RTEMS_Makefiles/Makefile.site
+++ /dev/null
@@ -1,3 +0,0 @@
-#
-# Site-specific options/configuration goes here
-#
diff --git a/RTEMS_Makefiles/Makefile.zlib b/RTEMS_Makefiles/Makefile.zlib
deleted file mode 100644
index a6a54ca..0000000
--- a/RTEMS_Makefiles/Makefile.zlib
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# Configure/build/install the AVL library
-#
-include ../RTEMS_Makefiles/Makefile.common
-
-AR = $(AR_FOR_TARGET) cr
-all:
- ./configure \
- --prefix=$(exec_prefix) \
- --libdir=$(exec_prefix)/$(RTEMS_BSP)/lib \
- --includedir=$(exec_prefix)/$(RTEMS_BSP)/lib/include
- make
- make install
diff --git a/SUPPORT b/SUPPORT
deleted file mode 100644
index 083c1cb..0000000
--- a/SUPPORT
+++ /dev/null
@@ -1,22 +0,0 @@
-#
-# $Id$
-#
-
-On-Line Applications Research Corporation (OAR) offers support,
-customization, and training for RTEMS. Custom RTEMS development services
-includes porting RTEMS to new processors and the development of custom board
-support packages and device drivers. In addition, OAR is available
-to assist in the development of your real-time embedded application.
-
-For more information, email Mark Johannes at mark@OARcorp.com
-or contact OAR at:
-
-On-Line Applications Research Corporation
-4910-L Corporate Drive
-Huntsville AL 35805
-Voice: (205) 722-9985
-Fax: (205 722-0985
-
-RTEMS maintenance and development is funded solely by RTEMS users.
-The future of RTEMS depends on its user base.
-
diff --git a/VERSION b/VERSION
deleted file mode 100644
index 0e8ae52..0000000
--- a/VERSION
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# This file is automatically generated -- DO NOT EDIT!!!
-#
-# $Id$
-#
-
-Version 4.6.99.3
diff --git a/avl-1.4.0/AUTHORS b/avl-1.4.0/AUTHORS
deleted file mode 100644
index bcd66cd..0000000
--- a/avl-1.4.0/AUTHORS
+++ /dev/null
@@ -1 +0,0 @@
-Ben Pfaff
diff --git a/avl-1.4.0/COPYING b/avl-1.4.0/COPYING
deleted file mode 100644
index 60549be..0000000
--- a/avl-1.4.0/COPYING
+++ /dev/null
@@ -1,340 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
- Version 2, June 1991
-
- Copyright (C) 1989, 1991 Free Software Foundation, Inc.
- 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
- Preamble
-
- The licenses for most software are designed to take away your
-freedom to share and change it. By contrast, the GNU General Public
-License is intended to guarantee your freedom to share and change free
-software--to make sure the software is free for all its users. This
-General Public License applies to most of the Free Software
-Foundation's software and to any other program whose authors commit to
-using it. (Some other Free Software Foundation software is covered by
-the GNU Library General Public License instead.) You can apply it to
-your programs, too.
-
- When we speak of free software, we are referring to freedom, not
-price. Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-this service if you wish), that you receive source code or can get it
-if you want it, that you can change the software or use pieces of it
-in new free programs; and that you know you can do these things.
-
- To protect your rights, we need to make restrictions that forbid
-anyone to deny you these rights or to ask you to surrender the rights.
-These restrictions translate to certain responsibilities for you if you
-distribute copies of the software, or if you modify it.
-
- For example, if you distribute copies of such a program, whether
-gratis or for a fee, you must give the recipients all the rights that
-you have. You must make sure that they, too, receive or can get the
-source code. And you must show them these terms so they know their
-rights.
-
- We protect your rights with two steps: (1) copyright the software, and
-(2) offer you this license which gives you legal permission to copy,
-distribute and/or modify the software.
-
- Also, for each author's protection and ours, we want to make certain
-that everyone understands that there is no warranty for this free
-software. If the software is modified by someone else and passed on, we
-want its recipients to know that what they have is not the original, so
-that any problems introduced by others will not reflect on the original
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-
- Finally, any free program is threatened constantly by software
-patents. We wish to avoid the danger that redistributors of a free
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-patent must be licensed for everyone's free use or not licensed at all.
-
- The precise terms and conditions for copying, distribution and
-modification follow.
-
- GNU GENERAL PUBLIC LICENSE
- TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
-
- 0. This License applies to any program or other work which contains
-a notice placed by the copyright holder saying it may be distributed
-under the terms of this General Public License. The "Program", below,
-refers to any such program or work, and a "work based on the Program"
-means either the Program or any derivative work under copyright law:
-that is to say, a work containing the Program or a portion of it,
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-language. (Hereinafter, translation is included without limitation in
-the term "modification".) Each licensee is addressed as "you".
-
-Activities other than copying, distribution and modification are not
-covered by this License; they are outside its scope. The act of
-running the Program is not restricted, and the output from the Program
-is covered only if its contents constitute a work based on the
-Program (independent of having been made by running the Program).
-Whether that is true depends on what the Program does.
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- 1. You may copy and distribute verbatim copies of the Program's
-source code as you receive it, in any medium, provided that you
-conspicuously and appropriately publish on each copy an appropriate
-copyright notice and disclaimer of warranty; keep intact all the
-notices that refer to this License and to the absence of any warranty;
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-along with the Program.
-
-You may charge a fee for the physical act of transferring a copy, and
-you may at your option offer warranty protection in exchange for a fee.
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- 2. You may modify your copy or copies of the Program or any portion
-of it, thus forming a work based on the Program, and copy and
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- whole or in part contains or is derived from the Program or any
- part thereof, to be licensed as a whole at no charge to all third
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- c) If the modified program normally reads commands interactively
- when run, you must cause it, when started running for such
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- a warranty) and that users may redistribute the program under
- these conditions, and telling the user how to view a copy of this
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- the Program is not required to print an announcement.)
-
-These requirements apply to the modified work as a whole. If
-identifiable sections of that work are not derived from the Program,
-and can be reasonably considered independent and separate works in
-themselves, then this License, and its terms, do not apply to those
-sections when you distribute them as separate works. But when you
-distribute the same sections as part of a whole which is a work based
-on the Program, the distribution of the whole must be on the terms of
-this License, whose permissions for other licensees extend to the
-entire whole, and thus to each and every part regardless of who wrote it.
-
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-your rights to work written entirely by you; rather, the intent is to
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-collective works based on the Program.
-
-In addition, mere aggregation of another work not based on the Program
-with the Program (or with a work based on the Program) on a volume of
-a storage or distribution medium does not bring the other work under
-the scope of this License.
-
- 3. You may copy and distribute the Program (or a work based on it,
-under Section 2) in object code or executable form under the terms of
-Sections 1 and 2 above provided that you also do one of the following:
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- a) Accompany it with the complete corresponding machine-readable
- source code, which must be distributed under the terms of Sections
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- 4. You may not copy, modify, sublicense, or distribute the Program
-except as expressly provided under this License. Any attempt
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-void, and will automatically terminate your rights under this License.
-However, parties who have received copies, or rights, from you under
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-parties remain in full compliance.
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- 5. You are not required to accept this License, since you have not
-signed it. However, nothing else grants you permission to modify or
-distribute the Program or its derivative works. These actions are
-prohibited by law if you do not accept this License. Therefore, by
-modifying or distributing the Program (or any work based on the
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-the Program or works based on it.
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- 6. Each time you redistribute the Program (or any work based on the
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-restrictions on the recipients' exercise of the rights granted herein.
-You are not responsible for enforcing compliance by third parties to
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-
- 7. If, as a consequence of a court judgment or allegation of patent
-infringement or for any other reason (not limited to patent issues),
-conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
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-distribute so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you
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-license would not permit royalty-free redistribution of the Program by
-all those who receive copies directly or indirectly through you, then
-the only way you could satisfy both it and this License would be to
-refrain entirely from distribution of the Program.
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-If any portion of this section is held invalid or unenforceable under
-any particular circumstance, the balance of the section is intended to
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-It is not the purpose of this section to induce you to infringe any
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-such claims; this section has the sole purpose of protecting the
-integrity of the free software distribution system, which is
-implemented by public license practices. Many people have made
-generous contributions to the wide range of software distributed
-through that system in reliance on consistent application of that
-system; it is up to the author/donor to decide if he or she is willing
-to distribute software through any other system and a licensee cannot
-impose that choice.
-
-This section is intended to make thoroughly clear what is believed to
-be a consequence of the rest of this License.
-
- 8. If the distribution and/or use of the Program is restricted in
-certain countries either by patents or by copyrighted interfaces, the
-original copyright holder who places the Program under this License
-may add an explicit geographical distribution limitation excluding
-those countries, so that distribution is permitted only in or among
-countries not thus excluded. In such case, this License incorporates
-the limitation as if written in the body of this License.
-
- 9. The Free Software Foundation may publish revised and/or new versions
-of the General Public License from time to time. Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-Each version is given a distinguishing version number. If the Program
-specifies a version number of this License which applies to it and "any
-later version", you have the option of following the terms and conditions
-either of that version or of any later version published by the Free
-Software Foundation. If the Program does not specify a version number of
-this License, you may choose any version ever published by the Free Software
-Foundation.
-
- 10. If you wish to incorporate parts of the Program into other free
-programs whose distribution conditions are different, write to the author
-to ask for permission. For software which is copyrighted by the Free
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-make exceptions for this. Our decision will be guided by the two goals
-of preserving the free status of all derivatives of our free software and
-of promoting the sharing and reuse of software generally.
-
- NO WARRANTY
-
- 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
-FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
-OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
-PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
-OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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-TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
-PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
-REPAIR OR CORRECTION.
-
- 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
-REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
-INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
-OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
-TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
-YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
-PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGES.
-
- END OF TERMS AND CONDITIONS
-
- How to Apply These Terms to Your New Programs
-
- If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
- To do so, attach the following notices to the program. It is safest
-to attach them to the start of each source file to most effectively
-convey the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-
- Copyright (C) 19yy
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-
-Also add information on how to contact you by electronic and paper mail.
-
-If the program is interactive, make it output a short notice like this
-when it starts in an interactive mode:
-
- Gnomovision version 69, Copyright (C) 19yy name of author
- Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License. Of course, the commands you use may
-be called something other than `show w' and `show c'; they could even be
-mouse-clicks or menu items--whatever suits your program.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the program, if
-necessary. Here is a sample; alter the names:
-
- Yoyodyne, Inc., hereby disclaims all copyright interest in the program
- `Gnomovision' (which makes passes at compilers) written by James Hacker.
-
- , 1 April 1989
- Ty Coon, President of Vice
-
-This General Public License does not permit incorporating your program into
-proprietary programs. If your program is a subroutine library, you may
-consider it more useful to permit linking proprietary applications with the
-library. If this is what you want to do, use the GNU Library General
-Public License instead of this License.
diff --git a/avl-1.4.0/ChangeLog b/avl-1.4.0/ChangeLog
deleted file mode 100644
index e31a7c2..0000000
--- a/avl-1.4.0/ChangeLog
+++ /dev/null
@@ -1,181 +0,0 @@
-Sat Aug 7 18:32:43 1999 Ben Pfaff
-
- Implemented red-black tree library.
- * Makefile.am: Add rb.c, rb.h in appropriate places.
- * README: Update.
- * rb.c: New file.
- * rb.h: Ditto.
- * avl.texinfo: Revised.
-
- * THANKS: Update.
- * TODO: Update.
-
- * avl.c: In several places, replaced usage of comma operator with
- a proper statement block.
- * avlt.c: Ditto.
- * avltr.c: Ditto.
-
- * avl.h: (AVL_TRAVERSER_INIT) New macro.
- (avl_init_traverser) New function-like macro.
- * avlt.h: (AVLT_TRAVERSER_INIT) New macro.
- (avlt_init_traverser) New function-like macro.
- * avltr.h: (AVLTR_TRAVERSER_INIT) New macro.
- (avltr_init_traverser) New function-like macro.
- * thread-test.c: (main) Use AVL_TRAVERSER_INIT.
-
- * Made version 1.4.0.
-
-Sat Jul 31 12:39:54 1999 Ben Pfaff
-
- * avl.texinfo: Update suggested by Jonathan Roy .
-
-Tue May 25 12:20:43 1999 Ben Pfaff
-
- * avl.c: (avl_delete) Make work properly for empty tree. Furrfu!
- I should have noticed this before.
-
-Mon May 17 11:32:56 1999 Ben Pfaff
-
- * Makefile.am: Don't require texi2html. Use $(MAKEINFO)
- variable. Thanks to Alexandre Oliva .
-
-Sat May 15 23:47:14 1999 Ben Pfaff
-
- * Updated copyright dates in several files.
-
- * Made version 1.3.0.
-
-Sat May 15 21:44:54 1999 Ben Pfaff
-
- * avl.c, avlt.c, avltr.c: In many places replaced assert (p) by
- assert (p != NULL). Believe it or not, the former is not valid
- ANSI C.
-
- Thanks to "Ficarra, David W, NNAD" for pointing
- out the following two sets of bugs.
- * avl.c: (avl_probe) Fix order of assignment and assertion.
- * avlt.c: (avlt_walk, avlt_probe, avlt_find) Ditto.
- * avltr.c: (avltr_probe, avltr_find) Ditto.
-
- * avlt.c: (avlt_find, avlt_delete) Check for empty tree.
- * avltr.c: (avltr_probe) Ditto.
-
- * avl.c, avlt.c, avltr.c, thread-test.c: Change test code to only
- perform a limited number of iterations to facilitate automated
- testing.
-
- * avl.c: (avl_find_close) New function contributed by Thomas
- Binder .
- * avlt.c: (avlt_find_close) Ditto.
- * avltr.c: (avltr_find_close) Ditto.
-
- * avl.texinfo: Update.
-
- libavl is now automake/autoconfiscated. Contributed by Alexandre
- Oliva .
- * AUTHORS: New file.
- * Makefile: Now automake-generated.
- * INSTALL: New file.
- * Makefile.am: New file.
- * Makefile.in: New file.
- * THANKS: New file.
- * config.h.in: New file.
- * configure.in: New file.
- * configure: New file.
- * install-sh: New file.
- * missing: New file.
- * mkinstalldirs: New file.
- * texinfo.tex: New file.
-
-Tue May 11 13:33:20 1999 Ben Pfaff
-
- * avl.texinfo: Fix typos. Thanks to onTy Toom
- for pointing these out.
-
- * Made version 1.2.9.
-
-Sun Mar 14 13:39:16 1999 Ben Pfaff
-
- * avl.c: Fixed two occurrences of = that should have been == in
- assertions. Thanks to Girish Zambre for
- pointing out this problem.
-
- * avl.c, avlt.c, avltr.c: __attribute__ must follow declarations
- for gcc 2.7.x.
-
- * Made version 1.2.8.
-
-Sun Mar 14 13:38:29 1999 Ben Pfaff
-
- * TODO: Add some comments from David Kastrup
- .
-
- * Made version 1.2.7.
-
-Tue Jan 12 10:16:05 1999 Ben Pfaff
-
- * avl.texinfo: Add skip lists as alternative to AVL trees. Thanks
- to Ron Pfeifle .
-
- * Made version 1.2.6.
-
-Sun Jan 10 15:37:57 1999 Ben Pfaff
-
- * avl.texinfo: Elaborated description of distinction between
- threaded and unthreaded trees at request of several.
-
- * Made version 1.2.5.
-
-Sun Nov 22 13:36:58 1998 Ben Pfaff
-
- * avl.texinfo: Updates suggested by Jason Eisner
- .
-
- * Made version 1.2.4.
-
-Sun Oct 18 10:26:08 1998 Ben Pfaff
-
- * TODO: New file.
-
- * avl.c: (xmalloc) Don't declare xmalloc if HAVE_XMALLOC is
- defined. By default on error, print a message to stderr and exit,
- rather than calling abort() as before.
- * avlt.c: (xmalloc) Same.
- * avltr.c: (xmalloc) Same.
-
- * Made version 1.2.3.
-
-Thu Sep 3 13:58:55 1998 Ben Pfaff
-
- * README: Update.
-
- * avl.c: (avl_delete) Minor efficiency fixes; removed redundant
- comparison.
-
- * avlt.c: (avl_delete) Minor efficiency fix.
- * avltr.c: (avl_delete) Same change.
-
- * avl.texi: Update.
-
- * Made version 1.2.2.
-
-Thu Jun 11 15:13:02 1998 Ben Pfaff
-
- * avl.c: Don't #define unused when PSPP is defined.
- (force_avl_delete) Rename avl_force_delete.
-
- * avlt.c: (force_avlt_delete) Rename avlt_force_delete.
-
- * avltr.c: (force_avltr_delete) Rename avltr_force_delete.
-
- * Made version 1.2.1.
-
-Thu Jun 11 14:43:30 1998 Ben Pfaff
-
- * Version 1.2.0: First GNU release.
-
-----------------------------------------------------------------------
-Local Variables:
-mode: change-log
-version-control: never
-End:
diff --git a/avl-1.4.0/INSTALL b/avl-1.4.0/INSTALL
deleted file mode 100644
index b42a17a..0000000
--- a/avl-1.4.0/INSTALL
+++ /dev/null
@@ -1,182 +0,0 @@
-Basic Installation
-==================
-
- These are generic installation instructions.
-
- The `configure' shell script attempts to guess correct values for
-various system-dependent variables used during compilation. It uses
-those values to create a `Makefile' in each directory of the package.
-It may also create one or more `.h' files containing system-dependent
-definitions. Finally, it creates a shell script `config.status' that
-you can run in the future to recreate the current configuration, a file
-`config.cache' that saves the results of its tests to speed up
-reconfiguring, and a file `config.log' containing compiler output
-(useful mainly for debugging `configure').
-
- If you need to do unusual things to compile the package, please try
-to figure out how `configure' could check whether to do them, and mail
-diffs or instructions to the address given in the `README' so they can
-be considered for the next release. If at some point `config.cache'
-contains results you don't want to keep, you may remove or edit it.
-
- The file `configure.in' is used to create `configure' by a program
-called `autoconf'. You only need `configure.in' if you want to change
-it or regenerate `configure' using a newer version of `autoconf'.
-
-The simplest way to compile this package is:
-
- 1. `cd' to the directory containing the package's source code and type
- `./configure' to configure the package for your system. If you're
- using `csh' on an old version of System V, you might need to type
- `sh ./configure' instead to prevent `csh' from trying to execute
- `configure' itself.
-
- Running `configure' takes awhile. While running, it prints some
- messages telling which features it is checking for.
-
- 2. Type `make' to compile the package.
-
- 3. Optionally, type `make check' to run any self-tests that come with
- the package.
-
- 4. Type `make install' to install the programs and any data files and
- documentation.
-
- 5. You can remove the program binaries and object files from the
- source code directory by typing `make clean'. To also remove the
- files that `configure' created (so you can compile the package for
- a different kind of computer), type `make distclean'. There is
- also a `make maintainer-clean' target, but that is intended mainly
- for the package's developers. If you use it, you may have to get
- all sorts of other programs in order to regenerate files that came
- with the distribution.
-
-Compilers and Options
-=====================
-
- Some systems require unusual options for compilation or linking that
-the `configure' script does not know about. You can give `configure'
-initial values for variables by setting them in the environment. Using
-a Bourne-compatible shell, you can do that on the command line like
-this:
- CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
-
-Or on systems that have the `env' program, you can do it like this:
- env CPPFLAGS=-I/usr/local/include LDFLAGS=-s ./configure
-
-Compiling For Multiple Architectures
-====================================
-
- You can compile the package for more than one kind of computer at the
-same time, by placing the object files for each architecture in their
-own directory. To do this, you must use a version of `make' that
-supports the `VPATH' variable, such as GNU `make'. `cd' to the
-directory where you want the object files and executables to go and run
-the `configure' script. `configure' automatically checks for the
-source code in the directory that `configure' is in and in `..'.
-
- If you have to use a `make' that does not supports the `VPATH'
-variable, you have to compile the package for one architecture at a time
-in the source code directory. After you have installed the package for
-one architecture, use `make distclean' before reconfiguring for another
-architecture.
-
-Installation Names
-==================
-
- By default, `make install' will install the package's files in
-`/usr/local/bin', `/usr/local/man', etc. You can specify an
-installation prefix other than `/usr/local' by giving `configure' the
-option `--prefix=PATH'.
-
- You can specify separate installation prefixes for
-architecture-specific files and architecture-independent files. If you
-give `configure' the option `--exec-prefix=PATH', the package will use
-PATH as the prefix for installing programs and libraries.
-Documentation and other data files will still use the regular prefix.
-
- In addition, if you use an unusual directory layout you can give
-options like `--bindir=PATH' to specify different values for particular
-kinds of files. Run `configure --help' for a list of the directories
-you can set and what kinds of files go in them.
-
- If the package supports it, you can cause programs to be installed
-with an extra prefix or suffix on their names by giving `configure' the
-option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
-
-Optional Features
-=================
-
- Some packages pay attention to `--enable-FEATURE' options to
-`configure', where FEATURE indicates an optional part of the package.
-They may also pay attention to `--with-PACKAGE' options, where PACKAGE
-is something like `gnu-as' or `x' (for the X Window System). The
-`README' should mention any `--enable-' and `--with-' options that the
-package recognizes.
-
- For packages that use the X Window System, `configure' can usually
-find the X include and library files automatically, but if it doesn't,
-you can use the `configure' options `--x-includes=DIR' and
-`--x-libraries=DIR' to specify their locations.
-
-Specifying the System Type
-==========================
-
- There may be some features `configure' can not figure out
-automatically, but needs to determine by the type of host the package
-will run on. Usually `configure' can figure that out, but if it prints
-a message saying it can not guess the host type, give it the
-`--host=TYPE' option. TYPE can either be a short name for the system
-type, such as `sun4', or a canonical name with three fields:
- CPU-COMPANY-SYSTEM
-
-See the file `config.sub' for the possible values of each field. If
-`config.sub' isn't included in this package, then this package doesn't
-need to know the host type.
-
- If you are building compiler tools for cross-compiling, you can also
-use the `--target=TYPE' option to select the type of system they will
-produce code for and the `--build=TYPE' option to select the type of
-system on which you are compiling the package.
-
-Sharing Defaults
-================
-
- If you want to set default values for `configure' scripts to share,
-you can create a site shell script called `config.site' that gives
-default values for variables like `CC', `cache_file', and `prefix'.
-`configure' looks for `PREFIX/share/config.site' if it exists, then
-`PREFIX/etc/config.site' if it exists. Or, you can set the
-`CONFIG_SITE' environment variable to the location of the site script.
-A warning: not all `configure' scripts look for a site script.
-
-Operation Controls
-==================
-
- `configure' recognizes the following options to control how it
-operates.
-
-`--cache-file=FILE'
- Use and save the results of the tests in FILE instead of
- `./config.cache'. Set FILE to `/dev/null' to disable caching, for
- debugging `configure'.
-
-`--help'
- Print a summary of the options to `configure', and exit.
-
-`--quiet'
-`--silent'
-`-q'
- Do not print messages saying which checks are being made. To
- suppress all normal output, redirect it to `/dev/null' (any error
- messages will still be shown).
-
-`--srcdir=DIR'
- Look for the package's source code in directory DIR. Usually
- `configure' can determine that directory automatically.
-
-`--version'
- Print the version of Autoconf used to generate the `configure'
- script, and exit.
-
-`configure' also accepts some other, not widely useful, options.
diff --git a/avl-1.4.0/Makefile.am b/avl-1.4.0/Makefile.am
deleted file mode 100644
index aa4754d..0000000
--- a/avl-1.4.0/Makefile.am
+++ /dev/null
@@ -1,28 +0,0 @@
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-
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-
-lib_LIBRARIES = libavl.a
-libavl_a_SOURCES = avl.c avlt.c avltr.c rb.c
-
-info_TEXINFOS = avl.texinfo
-noinst_DATA = avl.html avl.text
-
-avl.text : avl.texinfo
- $(MAKEINFO) $(srcdir)/avl.texinfo -o avl.text --no-headers
-
-avl.html: avl.texinfo
- -texi2html -monolithic $(srcdir)/avl.texinfo
-
-EXTRA_PROGRAMS = avl-test avlt-test avltr-test thread-test rb-test
-DISTCLEANFILES = $(EXTRA_PROGRAMS) $(BUILT_SOURCES)
-
-BUILT_SOURCES = avl-test.c avlt-test.c avltr-test.c rb-test.c
-
-TESTS = avl-test avlt-test avltr-test thread-test rb-test
-avl-test.c avlt-test.c avltr-test.c rb-test.c:
- rm -f $@
- echo '#define SELF_TEST 1' > $@
- echo '#include "'`echo $@ | sed s/-test//`'"' >> $@
-
-thread_test_LDADD = libavl.a
diff --git a/avl-1.4.0/Makefile.in b/avl-1.4.0/Makefile.in
deleted file mode 100644
index 2d041aa..0000000
--- a/avl-1.4.0/Makefile.in
+++ /dev/null
@@ -1,572 +0,0 @@
-# Makefile.in generated automatically by automake 1.4 from Makefile.am
-
-# Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
-# This Makefile.in is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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- awk ' { files[$$0] = 1; } \
- END { for (i in files) print i; }'`; \
- here=`pwd` && cd $(srcdir) \
- && mkid -f$$here/ID $$unique $(LISP)
-
-TAGS: $(HEADERS) $(SOURCES) $(TAGS_DEPENDENCIES) $(LISP)
- tags=; \
- here=`pwd`; \
- list='$(SOURCES) $(HEADERS)'; \
- unique=`for i in $$list; do echo $$i; done | \
- awk ' { files[$$0] = 1; } \
- END { for (i in files) print i; }'`; \
- test -z "$(ETAGS_ARGS)$$unique$(LISP)$$tags" \
- || (cd $(srcdir) && etags $(ETAGS_ARGS) $$tags $$unique $(LISP) -o $$here/TAGS)
-
-mostlyclean-tags:
-
-clean-tags:
-
-distclean-tags:
- -rm -f TAGS ID
-
-maintainer-clean-tags:
-
-distdir = $(PACKAGE)-$(VERSION)
-top_distdir = $(distdir)
-
-# This target untars the dist file and tries a VPATH configuration. Then
-# it guarantees that the distribution is self-contained by making another
-# tarfile.
-distcheck: dist
- -rm -rf $(distdir)
- GZIP=$(GZIP_ENV) $(TAR) zxf $(distdir).tar.gz
- mkdir $(distdir)/=build
- mkdir $(distdir)/=inst
- dc_install_base=`cd $(distdir)/=inst && pwd`; \
- cd $(distdir)/=build \
- && ../configure --srcdir=.. --prefix=$$dc_install_base \
- && $(MAKE) $(AM_MAKEFLAGS) \
- && $(MAKE) $(AM_MAKEFLAGS) dvi \
- && $(MAKE) $(AM_MAKEFLAGS) check \
- && $(MAKE) $(AM_MAKEFLAGS) install \
- && $(MAKE) $(AM_MAKEFLAGS) installcheck \
- && $(MAKE) $(AM_MAKEFLAGS) dist
- -rm -rf $(distdir)
- @banner="$(distdir).tar.gz is ready for distribution"; \
- dashes=`echo "$$banner" | sed s/./=/g`; \
- echo "$$dashes"; \
- echo "$$banner"; \
- echo "$$dashes"
-dist: distdir
- -chmod -R a+r $(distdir)
- GZIP=$(GZIP_ENV) $(TAR) chozf $(distdir).tar.gz $(distdir)
- -rm -rf $(distdir)
-dist-all: distdir
- -chmod -R a+r $(distdir)
- GZIP=$(GZIP_ENV) $(TAR) chozf $(distdir).tar.gz $(distdir)
- -rm -rf $(distdir)
-distdir: $(DISTFILES)
- @if sed 15q $(srcdir)/NEWS | fgrep -e "$(VERSION)" > /dev/null; then :; else \
- echo "NEWS not updated; not releasing" 1>&2; \
- exit 1; \
- fi
- -rm -rf $(distdir)
- mkdir $(distdir)
- -chmod 777 $(distdir)
- @for file in $(DISTFILES); do \
- d=$(srcdir); \
- if test -d $$d/$$file; then \
- cp -pr $$d/$$file $(distdir)/$$file; \
- else \
- test -f $(distdir)/$$file \
- || ln $$d/$$file $(distdir)/$$file 2> /dev/null \
- || cp -p $$d/$$file $(distdir)/$$file || :; \
- fi; \
- done
- $(MAKE) $(AM_MAKEFLAGS) top_distdir="$(top_distdir)" distdir="$(distdir)" dist-info
-
-check-TESTS: $(TESTS)
- @failed=0; all=0; \
- srcdir=$(srcdir); export srcdir; \
- for tst in $(TESTS); do \
- if test -f $$tst; then dir=.; \
- else dir="$(srcdir)"; fi; \
- if $(TESTS_ENVIRONMENT) $$dir/$$tst; then \
- all=`expr $$all + 1`; \
- echo "PASS: $$tst"; \
- elif test $$? -ne 77; then \
- all=`expr $$all + 1`; \
- failed=`expr $$failed + 1`; \
- echo "FAIL: $$tst"; \
- fi; \
- done; \
- if test "$$failed" -eq 0; then \
- banner="All $$all tests passed"; \
- else \
- banner="$$failed of $$all tests failed"; \
- fi; \
- dashes=`echo "$$banner" | sed s/./=/g`; \
- echo "$$dashes"; \
- echo "$$banner"; \
- echo "$$dashes"; \
- test "$$failed" -eq 0
-info-am: $(INFO_DEPS)
-info: info-am
-dvi-am: $(DVIS)
-dvi: dvi-am
-check-am: all-am
- $(MAKE) $(AM_MAKEFLAGS) check-TESTS
-check: check-am
-installcheck-am:
-installcheck: installcheck-am
-install-exec-am: install-libLIBRARIES
-install-exec: install-exec-am
-
-install-data-am: install-info-am install-includeHEADERS
-install-data: install-data-am
-
-install-am: all-am
- @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
-install: install-am
-uninstall-am: uninstall-libLIBRARIES uninstall-info \
- uninstall-includeHEADERS
-uninstall: uninstall-am
-all-am: Makefile $(INFO_DEPS) $(LIBRARIES) $(DATA) $(HEADERS)
-all-redirect: all-am
-install-strip:
- $(MAKE) $(AM_MAKEFLAGS) AM_INSTALL_PROGRAM_FLAGS=-s install
-installdirs:
- $(mkinstalldirs) $(DESTDIR)$(libdir) $(DESTDIR)$(infodir) \
- $(DESTDIR)$(includedir)
-
-
-mostlyclean-generic:
-
-clean-generic:
-
-distclean-generic:
- -rm -f Makefile $(CONFIG_CLEAN_FILES)
- -rm -f config.cache config.log stamp-h stamp-h[0-9]*
- -test -z "$(DISTCLEANFILES)" || rm -f $(DISTCLEANFILES)
-
-maintainer-clean-generic:
- -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
-mostlyclean-am: mostlyclean-libLIBRARIES mostlyclean-compile \
- mostlyclean-aminfo mostlyclean-tags mostlyclean-generic
-
-mostlyclean: mostlyclean-am
-
-clean-am: clean-libLIBRARIES clean-compile clean-aminfo clean-tags \
- clean-generic mostlyclean-am
-
-clean: clean-am
-
-distclean-am: distclean-libLIBRARIES distclean-compile distclean-aminfo \
- distclean-tags distclean-generic clean-am
-
-distclean: distclean-am
- -rm -f config.status
-
-maintainer-clean-am: maintainer-clean-libLIBRARIES \
- maintainer-clean-compile maintainer-clean-aminfo \
- maintainer-clean-tags maintainer-clean-generic \
- distclean-am
- @echo "This command is intended for maintainers to use;"
- @echo "it deletes files that may require special tools to rebuild."
-
-maintainer-clean: maintainer-clean-am
- -rm -f config.status
-
-.PHONY: mostlyclean-libLIBRARIES distclean-libLIBRARIES \
-clean-libLIBRARIES maintainer-clean-libLIBRARIES uninstall-libLIBRARIES \
-install-libLIBRARIES mostlyclean-compile distclean-compile \
-clean-compile maintainer-clean-compile install-info-am uninstall-info \
-mostlyclean-aminfo distclean-aminfo clean-aminfo \
-maintainer-clean-aminfo uninstall-includeHEADERS install-includeHEADERS \
-tags mostlyclean-tags distclean-tags clean-tags maintainer-clean-tags \
-distdir check-TESTS info-am info dvi-am dvi check check-am \
-installcheck-am installcheck install-exec-am install-exec \
-install-data-am install-data install-am install uninstall-am uninstall \
-all-redirect all-am all installdirs mostlyclean-generic \
-distclean-generic clean-generic maintainer-clean-generic clean \
-mostlyclean distclean maintainer-clean
-
-
-avl.text : avl.texinfo
- $(MAKEINFO) $(srcdir)/avl.texinfo -o avl.text --no-headers
-
-avl.html: avl.texinfo
- -texi2html -monolithic $(srcdir)/avl.texinfo
-avl-test.c avlt-test.c avltr-test.c rb-test.c:
- rm -f $@
- echo '#define SELF_TEST 1' > $@
- echo '#include "'`echo $@ | sed s/-test//`'"' >> $@
-
-# Tell versions [3.59,3.63) of GNU make to not export all variables.
-# Otherwise a system limit (for SysV at least) may be exceeded.
-.NOEXPORT:
diff --git a/avl-1.4.0/NEWS b/avl-1.4.0/NEWS
deleted file mode 100644
index ecdc25d..0000000
--- a/avl-1.4.0/NEWS
+++ /dev/null
@@ -1,98 +0,0 @@
-libavl NEWS -- history of user-visible changes.
-Time-stamp: <1999-08-15 21:52:15 blp>
-Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-See the end for copying conditions.
-
-Please send PSPP bug reports to bug-gnu-pspp@gnu.org.
-
-Changes for version 1.4.0:
-
- Implemented red-black trees.
-
- New functions, *_init_traverser(), to initialize a *_traverser
- structure. New macros *_TRAVERSER_INIT for same purpose.
-
-Changes for version 1.3.0:
-
- Now uses Autoconf and Automake to configure. Thanks to Alexandre
- Oliva .
-
- New: automated testing with `make check'.
-
- Fixes for strict ANSI C compliance.
-
- Fixed useless assertions. Fixed bug regarding empty trees for some
- operations with threaded and right-threaded trees. Thanks to
- "Ficarra, David W, NNAD" .
-
- New functions, avl*_find_close(), for finding a node in the tree
- with a value close to a specified value. See documentation and
- source code for more details. Thanks to Thomas Binder
- .
-
-Changes for version 1.2.9:
-
- Fix typos in documentation. Thanks to onTy Toom .
-
-Changes for version 1.2.8:
-
- Fixed typos in assertions. Thanks to Girish Zambre
- .
-
- Better support for gcc 2.7.x.
-
-Changes for versions 1.2.4, 1.2.5, 1.2.6, 1.2.7:
-
- Documentation updates. Thanks to Ron Pfeifle ,
- Jason Eisner , and others.
-
-Changes for version 1.2.3:
-
- The library's allocation function xmalloc() can easily be overridden
- by the library's user. Thanks to Clayton Weaver
- for the idea.
-
-Changes for version 1.2.2:
-
- Documentation fixes. Thanks to Akim Demaille
- for pointing these out.
-
-Changes for version 1.2.1:
-
- Bug fixes.
-
-Changes for version 1.2.0:
-
- Implemented right-threaded trees.
-
- Added functions to convert among AVL tree types.
-
- First GNU release.
-
-Changes for version 1.1.0:
-
- Implemented threaded trees.
-
-Changes for version 1.0:
-
- First public release.
-
-----------------------------------------------------------------------
-Copyright information:
-
-Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- Permission is granted to anyone to make or distribute verbatim
- copies of this document as received, in any medium, provided that
- the copyright notice and this permission notice are preserved, thus
- giving the recipient permission to redistribute in turn.
-
- Permission is granted to distribute modified versions of this
- document, or of portions of it, under the above conditions,
- provided also that they carry prominent notices stating who last
- changed them.
-
-Local variables:
-version-control: never
-mode: indented-text
-end:
diff --git a/avl-1.4.0/README b/avl-1.4.0/README
deleted file mode 100644
index 46ed6e4..0000000
--- a/avl-1.4.0/README
+++ /dev/null
@@ -1,37 +0,0 @@
-This is version 1.4 of libavl, a library in ANSI C for manipulation of
-balanced binary trees. Functions for use with three varieties of AVL
-tree and one type of red-black tree are included. There is full
-documentation, including an explanation of what AVL and red-black
-trees are and why you'd use them, in Texinfo, Info, HTML, and plain
-text formats.
-
-The library is divided into three parts, described in more detail
-below. You need only include the files for the types of trees that
-you are using.
-
- - avl.h, avl.c: Unthreaded AVL tree library.
- - avlt.h, avlt.c: Threaded AVL tree library.
- - avltr.h, avltr.c: Right-threaded AVL tree library.
- - rb.h, rb.c: Unthreaded red-black tree library.
-
-Each .c file in the library has a self-test routine built in, which
-can be invoked by compiling it with SELF_TEST set to 1. In addition,
-there is a separate program thread-test.c that tests the functions
-that convert among types of AVL trees. To automatically run these
-tests, type `make check' after you have configured the library with
-`configure'. For more information on how to configure and compile
-libavl, see the file INSTALL included in this directory.
-
-libavl is licensed under the GNU General Public License (GPL), which
-should be included in this directory in file COPYING. This is not the
-same as GNU Library General Public License (LGPL). Please read the
-license and become familiar with its terms.
-
-Please send bug reports and enhancement requests for libavl to Ben
-Pfaff .
-
-Share and enjoy!
-
-Local variables:
-mode: text
-End:
diff --git a/avl-1.4.0/THANKS b/avl-1.4.0/THANKS
deleted file mode 100644
index cd9319a..0000000
--- a/avl-1.4.0/THANKS
+++ /dev/null
@@ -1,15 +0,0 @@
-Thanks to...
-
-* Donald Knuth for _The Art of Computer Programming_.
-
-* Thomas Cormen, Charles Leiserson, and Ron Rivest for _Introduction
- to Algorithms_.
-
-* David MacKenzie for writing Autoconf, the automatic configuration
- tool.
-
-* David MacKenzie and Tom Tromey for writing Automake, the tool for
- generating `Makefile's.
-
-* All those who have contributed bug reports and enhancements. You
- can find them listed individually in the NEWS and the ChangeLog.
diff --git a/avl-1.4.0/TODO b/avl-1.4.0/TODO
deleted file mode 100644
index 0231395..0000000
--- a/avl-1.4.0/TODO
+++ /dev/null
@@ -1,92 +0,0 @@
-TODO
-----
-
-* Write `bare' no-rebalancing version for comparison purposes.
-
-* In avl_delete's D9 it may be faster to move the data instead of
- moving around all the pointers. Consider the situation carefully.
-
-* avl_traverse_{fwd,rev}; avl_find_traverse
-
-* Generalized testing framework; for instance, could compare with
- kazlib and avllib implementations.
-
-* Merge algorithm paper into documentation.
-
-----------------------------------------------------------------------
-From: Akim Demaille
-Subject: Re: libavl
-To: pfaffben@pilot.msu.edu
-Date: 25 Sep 1998 16:04:03 +0200
-
-
-Sorry for the delays...
-
-Ben Pfaff writes:
-
-> Akim Demaille writes:
->
-> And finaly, for the application I want to make of libavl, I have
-> sometimes to merge two avls, say the second into the first, while
-> specifying, when conflict, whether it is always the first or the
-> second that wins.
->
-> I can easily make this using your api, nevertheless, I wanted to ask
-> you whether you know none brute-force approaches, or even whether
-> this kind of features might appear in the future.
->
-> Knuth describes an elegant algorithm for merging two avls, but it only
-> works if all the values in one of them is smaller than all the values
-> in the other.
->
-> If you do think of a clever algorithm for doing this, please let me
-> know and I'll incorporate it into the API.
-
-I know none. but looking on the web, I found one in haskell :)
-I didn't look whether it was smart or not.
-
-http://www.cs.chalmers.se/pub/haskell/library/avl-tree.lgs
-
-There is not much material. I think comp.compiler is a good place to
-ask for an algorithm...
-
-Akim
-----------------------------------------------------------------------
-From: David Kastrup
-Subject: Re: Your AVL tree page
-To: pfaffben@pilot.msu.edu
-Date: Mon, 23 Nov 1998 18:38:55 +0100
-
- From: Ben Pfaff
- Date: 23 Nov 1998 12:12:31 -0500
-
- David Kastrup writes:
-
- You might want to take a look at the texts at
- http://www-lsi.upc.es/www/dept/techreps/1998.html
-
- In particular the paper
- http://www-lsi.upc.es/dept/techreps/ps/R98-12.ps.gz
-
- might be interesting, as it gives an AVL-tree mechanism for
- multi-threaded, distributed access.
-
- Thanks for the pointers. It seems that connectivity to that machine
- is really slow from here, at least right now, so I'll try to take a
- look at them a little later. Currently there is no multithread
- support in libavl, but it might be nice to add it later.
-
-Well, the reference will probably not be what you think it is. It is
-intended to not properly balance the tree during the access when that
-would mean locking the entire tree. Instead, it does only local
-corrections that eventually probagate to the top. One can also let a
-"garbage collect" thread run that will optimize the data structures
-at idle times, but will let them deteriorate a bit rather than fix
-them up properly under stress. This is, of course, especially
-interesting for internal data structures of an operating system, where
-full balancing at the time of access will slow operations down, but
-there will be idle times when balancing can occur without overhead.
-
-David Kastrup Phone: +49-234-700-5570
-Email: dak@neuroinformatik.ruhr-uni-bochum.de Fax: +49-234-709-4209
-Institut für Neuroinformatik, Universitätsstr. 150, 44780 Bochum, Germany
diff --git a/avl-1.4.0/aclocal.m4 b/avl-1.4.0/aclocal.m4
deleted file mode 100644
index 9f8add8..0000000
--- a/avl-1.4.0/aclocal.m4
+++ /dev/null
@@ -1,104 +0,0 @@
-dnl aclocal.m4 generated automatically by aclocal 1.4
-
-dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl This program is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-dnl PARTICULAR PURPOSE.
-
-# Do all the work for Automake. This macro actually does too much --
-# some checks are only needed if your package does certain things.
-# But this isn't really a big deal.
-
-# serial 1
-
-dnl Usage:
-dnl AM_INIT_AUTOMAKE(package,version, [no-define])
-
-AC_DEFUN(AM_INIT_AUTOMAKE,
-[AC_REQUIRE([AC_PROG_INSTALL])
-PACKAGE=[$1]
-AC_SUBST(PACKAGE)
-VERSION=[$2]
-AC_SUBST(VERSION)
-dnl test to see if srcdir already configured
-if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
- AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
-fi
-ifelse([$3],,
-AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
-AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
-AC_REQUIRE([AM_SANITY_CHECK])
-AC_REQUIRE([AC_ARG_PROGRAM])
-dnl FIXME This is truly gross.
-missing_dir=`cd $ac_aux_dir && pwd`
-AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
-AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
-AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
-AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
-AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
-AC_REQUIRE([AC_PROG_MAKE_SET])])
-
-#
-# Check to make sure that the build environment is sane.
-#
-
-AC_DEFUN(AM_SANITY_CHECK,
-[AC_MSG_CHECKING([whether build environment is sane])
-# Just in case
-sleep 1
-echo timestamp > conftestfile
-# Do `set' in a subshell so we don't clobber the current shell's
-# arguments. Must try -L first in case configure is actually a
-# symlink; some systems play weird games with the mod time of symlinks
-# (eg FreeBSD returns the mod time of the symlink's containing
-# directory).
-if (
- set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
- if test "[$]*" = "X"; then
- # -L didn't work.
- set X `ls -t $srcdir/configure conftestfile`
- fi
- if test "[$]*" != "X $srcdir/configure conftestfile" \
- && test "[$]*" != "X conftestfile $srcdir/configure"; then
-
- # If neither matched, then we have a broken ls. This can happen
- # if, for instance, CONFIG_SHELL is bash and it inherits a
- # broken ls alias from the environment. This has actually
- # happened. Such a system could not be considered "sane".
- AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
-alias in your environment])
- fi
-
- test "[$]2" = conftestfile
- )
-then
- # Ok.
- :
-else
- AC_MSG_ERROR([newly created file is older than distributed files!
-Check your system clock])
-fi
-rm -f conftest*
-AC_MSG_RESULT(yes)])
-
-dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
-dnl The program must properly implement --version.
-AC_DEFUN(AM_MISSING_PROG,
-[AC_MSG_CHECKING(for working $2)
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf. Sigh.
-if ($2 --version) < /dev/null > /dev/null 2>&1; then
- $1=$2
- AC_MSG_RESULT(found)
-else
- $1="$3/missing $2"
- AC_MSG_RESULT(missing)
-fi
-AC_SUBST($1)])
-
diff --git a/avl-1.4.0/avl.c b/avl-1.4.0/avl.c
deleted file mode 100644
index 82cdb6e..0000000
--- a/avl-1.4.0/avl.c
+++ /dev/null
@@ -1,1154 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file avl.c in libavl. */
-
-#if HAVE_CONFIG_H
-#include
-#endif
-#if PSPP
-#include "common.h"
-#include "arena.h"
-#define HAVE_XMALLOC 1
-#endif
-#if SELF_TEST
-#include
-#include
-#endif
-#include
-#include
-#include
-#include "avl.h"
-
-#if !PSPP && !__GCC__
-#define inline
-#endif
-
-#if !PSPP
-#if __GNUC__ >= 2
-#define unused __attribute__ ((unused))
-#else
-#define unused
-#endif
-#endif
-
-#ifdef HAVE_XMALLOC
-void *xmalloc (size_t);
-#else /* !HAVE_XMALLOC */
-/* Allocates SIZE bytes of space using malloc(). Aborts if out of
- memory. */
-static void *
-xmalloc (size_t size)
-{
- void *vp;
-
- if (size == 0)
- return NULL;
- vp = malloc (size);
-
- assert (vp != NULL);
- if (vp == NULL)
- {
- fprintf (stderr, "virtual memory exhausted\n");
- exit (EXIT_FAILURE);
- }
- return vp;
-}
-#endif /* !HAVE_XMALLOC */
-
-/* Creates an AVL tree in arena OWNER (which can be NULL). The arena
- is owned by the caller, not by the AVL tree. CMP is a order
- function for the data to be stored in the tree. PARAM is arbitrary
- data that becomes an argument to the comparison function. */
-avl_tree *
-avl_create (MAYBE_ARENA avl_comparison_func cmp, void *param)
-{
- avl_tree *tree;
-
- assert (cmp != NULL);
-#if PSPP
- if (owner)
- tree = arena_alloc (owner, sizeof (avl_tree));
- else
-#endif
- tree = xmalloc (sizeof (avl_tree));
-
-#if PSPP
- tree->owner = owner;
-#endif
- tree->root.link[0] = NULL;
- tree->root.link[1] = NULL;
- tree->cmp = cmp;
- tree->count = 0;
- tree->param = param;
-
- return tree;
-}
-
-/* Destroy tree TREE. Function FREE_FUNC is called for every node in
- the tree as it is destroyed.
-
- No effect if the tree has an arena owner and free_func is NULL.
- The caller owns the arena and must destroy it itself.
-
- Do not attempt to reuse the tree after it has been freed. Create a
- new one. */
-void
-avl_destroy (avl_tree *tree, avl_node_func free_func)
-{
- assert (tree != NULL);
-
-#if PSPP
- if (free_func || tree->owner == NULL)
-#endif
- {
- /* Uses Knuth's Algorithm 2.3.1T as modified in exercise 13
- (postorder traversal). */
-
- /* T1. */
- avl_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- char ab[AVL_MAX_HEIGHT]; /* Stack A: bits. */
- int ap = 0; /* Stack A: height. */
- avl_node *p = tree->root.link[0];
-
- for (;;)
- {
- /* T2. */
- while (p != NULL)
- {
- /* T3. */
- ab[ap] = 0;
- an[ap++] = p;
- p = p->link[0];
- }
-
- /* T4. */
- for (;;)
- {
- if (ap == 0)
- goto done;
-
- p = an[--ap];
- if (ab[ap] == 0)
- {
- ab[ap++] = 1;
- p = p->link[1];
- break;
- }
-
- if (free_func)
- free_func (p->data, tree->param);
-#if PSPP
- if (tree->owner == NULL)
-#endif
- free (p);
- }
- }
- }
-
- done:
-#if PSPP
- if (tree->owner == NULL)
-#endif
- free (tree);
-}
-
-/* avl_destroy() with FREE_FUNC hardcoded as free(). */
-void
-avl_free (avl_tree *tree)
-{
- avl_destroy (tree, (avl_node_func) free);
-}
-
-/* Return the number of nodes in TREE. */
-int
-avl_count (const avl_tree *tree)
-{
- assert (tree != NULL);
- return tree->count;
-}
-
-/* Allocates room for a new avl_node in arena OWNER, or using
- xmalloc() if OWNER is NULL. */
-#if PSPP
-static inline avl_node *
-new_node (arena **owner)
-{
- if (owner != NULL)
- return arena_alloc (owner, sizeof (avl_node));
- else
- return xmalloc (sizeof (avl_node));
-}
-#else
-static inline avl_node *
-new_node (void)
-{
- return xmalloc (sizeof (avl_node));
-}
-
-#define new_node(owner) \
- new_node ()
-#endif
-
-/* Copy the contents of TREE to a new tree in arena OWNER. If COPY is
- non-NULL, then each data item is passed to function COPY, and the
- return values are inserted into the new tree; otherwise, the items
- are copied verbatim from the old tree to the new tree. Returns the
- new tree. */
-avl_tree *
-avl_copy (MAYBE_ARENA const avl_tree *tree, avl_copy_func copy)
-{
- /* This is a combination of Knuth's Algorithm 2.3.1C (copying a
- binary tree) and Algorithm 2.3.1T as modified by exercise 12
- (preorder traversal). */
-
- avl_tree *new_tree;
-
- /* PT1. */
- const avl_node *pa[AVL_MAX_HEIGHT]; /* Stack PA: nodes. */
- const avl_node **pp = pa; /* Stack PA: stack pointer. */
- const avl_node *p = &tree->root;
-
- /* QT1. */
- avl_node *qa[AVL_MAX_HEIGHT]; /* Stack QA: nodes. */
- avl_node **qp = qa; /* Stack QA: stack pointer. */
- avl_node *q;
-
- assert (tree != NULL);
-#if PSPP
- new_tree = avl_create (owner, tree->cmp, tree->param);
-#else
- new_tree = avl_create (tree->cmp, tree->param);
-#endif
- new_tree->count = tree->count;
- q = &new_tree->root;
-
- for (;;)
- {
- /* C4. */
- if (p->link[0] != NULL)
- {
- avl_node *r = new_node (owner);
- r->link[0] = r->link[1] = NULL;
- q->link[0] = r;
- }
-
- /* C5: Find preorder successors of P and Q. */
- goto start;
- for (;;)
- {
- /* PT2. */
- while (p != NULL)
- {
- goto escape;
- start:
- /* PT3. */
- *pp++ = p;
- *qp++ = q;
- p = p->link[0];
- q = q->link[0];
- }
-
- /* PT4. */
- if (pp == pa)
- {
- assert (qp == qa);
- return new_tree;
- }
-
- p = *--pp;
- q = *--qp;
-
- /* PT5. */
- p = p->link[1];
- q = q->link[1];
- }
- escape:
-
- /* C2. */
- if (p->link[1])
- {
- avl_node *r = new_node (owner);
- r->link[0] = r->link[1] = NULL;
- q->link[1] = r;
- }
-
- /* C3. */
- q->bal = p->bal;
- if (copy == NULL)
- q->data = p->data;
- else
- q->data = copy (p->data, tree->param);
- }
-}
-
-/* Walk tree TREE in inorder, calling WALK_FUNC at each node. Passes
- PARAM to WALK_FUNC. */
-void
-avl_walk (const avl_tree *tree, avl_node_func walk_func, void *param)
-{
- /* Uses Knuth's algorithm 2.3.1T (inorder traversal). */
- assert (tree && walk_func);
-
- {
- /* T1. */
- const avl_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- const avl_node **ap = an; /* Stack A: stack pointer. */
- const avl_node *p = tree->root.link[0];
-
- for (;;)
- {
- /* T2. */
- while (p != NULL)
- {
- /* T3. */
- *ap++ = p;
- p = p->link[0];
- }
-
- /* T4. */
- if (ap == an)
- return;
- p = *--ap;
-
- /* T5. */
- walk_func (p->data, param);
- p = p->link[1];
- }
- }
-}
-
-/* Each call to this function for a given TREE and TRAV return the
- next item in the tree in inorder. Initialize the first element of
- TRAV (init) to 0 before calling the first time. Returns NULL when
- out of elements. */
-void *
-avl_traverse (const avl_tree *tree, avl_traverser *trav)
-{
- assert (tree && trav);
-
- /* Uses Knuth's algorithm 2.3.1T (inorder traversal). */
- if (trav->init == 0)
- {
- /* T1. */
- trav->init = 1;
- trav->nstack = 0;
- trav->p = tree->root.link[0];
- }
- else
- /* T5. */
- trav->p = trav->p->link[1];
-
- for (;;)
- {
- /* T2. */
- while (trav->p != NULL)
- {
- /* T3. */
- trav->stack[trav->nstack++] = trav->p;
- trav->p = trav->p->link[0];
- }
-
- /* T4. */
- if (trav->nstack == 0)
- {
- trav->init = 0;
- return NULL;
- }
- trav->p = trav->stack[--trav->nstack];
-
- /* T5. */
- return trav->p->data;
- }
-}
-
-/* Search TREE for an item matching ITEM. If found, returns a pointer
- to the address of the item. If none is found, ITEM is inserted
- into the tree, and a pointer to the address of ITEM is returned.
- In either case, the pointer returned can be changed by the caller,
- or the returned data item can be directly edited, but the key data
- in the item must not be changed. */
-void **
-avl_probe (avl_tree *tree, void *item)
-{
- /* Uses Knuth's Algorithm 6.2.3A (balanced tree search and
- insertion), but caches results of comparisons. In empirical
- tests this eliminates about 25% of the comparisons seen under
- random insertions. */
-
- /* A1. */
- avl_node *t;
- avl_node *s, *p, *q, *r;
-
- assert (tree != NULL);
- t = &tree->root;
- s = p = t->link[0];
-
- if (s == NULL)
- {
- tree->count++;
- assert (tree->count == 1);
- q = t->link[0] = new_node (tree->owner);
- q->data = item;
- q->link[0] = q->link[1] = NULL;
- q->bal = 0;
- return &q->data;
- }
-
- for (;;)
- {
- /* A2. */
- int diff = tree->cmp (item, p->data, tree->param);
-
- /* A3. */
- if (diff < 0)
- {
- p->cache = 0;
- q = p->link[0];
- if (q == NULL)
- {
- p->link[0] = q = new_node (tree->owner);
- break;
- }
- }
- /* A4. */
- else if (diff > 0)
- {
- p->cache = 1;
- q = p->link[1];
- if (q == NULL)
- {
- p->link[1] = q = new_node (tree->owner);
- break;
- }
- }
- else
- /* A2. */
- return &p->data;
-
- /* A3, A4. */
- if (q->bal != 0)
- t = p, s = q;
- p = q;
- }
-
- /* A5. */
- tree->count++;
- q->data = item;
- q->link[0] = q->link[1] = NULL;
- q->bal = 0;
-
- /* A6. */
- r = p = s->link[(int) s->cache];
- while (p != q)
- {
- p->bal = p->cache * 2 - 1;
- p = p->link[(int) p->cache];
- }
-
- /* A7. */
- if (s->cache == 0)
- {
- /* a = -1. */
- if (s->bal == 0)
- {
- s->bal = -1;
- return &q->data;
- }
- else if (s->bal == +1)
- {
- s->bal = 0;
- return &q->data;
- }
-
- assert (s->bal == -1);
- if (r->bal == -1)
- {
- /* A8. */
- p = r;
- s->link[0] = r->link[1];
- r->link[1] = s;
- s->bal = r->bal = 0;
- }
- else
- {
- /* A9. */
- assert (r->bal == +1);
- p = r->link[1];
- r->link[1] = p->link[0];
- p->link[0] = r;
- s->link[0] = p->link[1];
- p->link[1] = s;
- if (p->bal == -1)
- s->bal = 1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == +1);
- s->bal = 0, r->bal = -1;
- }
- p->bal = 0;
- }
- }
- else
- {
- /* a == +1. */
- if (s->bal == 0)
- {
- s->bal = 1;
- return &q->data;
- }
- else if (s->bal == -1)
- {
- s->bal = 0;
- return &q->data;
- }
-
- assert (s->bal == +1);
- if (r->bal == +1)
- {
- /* A8. */
- p = r;
- s->link[1] = r->link[0];
- r->link[0] = s;
- s->bal = r->bal = 0;
- }
- else
- {
- /* A9. */
- assert (r->bal == -1);
- p = r->link[0];
- r->link[0] = p->link[1];
- p->link[1] = r;
- s->link[1] = p->link[0];
- p->link[0] = s;
- if (p->bal == +1)
- s->bal = -1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == -1);
- s->bal = 0, r->bal = 1;
- }
- p->bal = 0;
- }
- }
-
- /* A10. */
- if (t != &tree->root && s == t->link[1])
- t->link[1] = p;
- else
- t->link[0] = p;
-
- return &q->data;
-}
-
-/* Search TREE for an item matching ITEM, and return it if found. */
-void *
-avl_find (const avl_tree *tree, const void *item)
-{
- const avl_node *p;
-
- assert (tree != NULL);
- for (p = tree->root.link[0]; p; )
- {
- int diff = tree->cmp (item, p->data, tree->param);
-
- if (diff < 0)
- p = p->link[0];
- else if (diff > 0)
- p = p->link[1];
- else
- return p->data;
- }
-
- return NULL;
-}
-
-/* Search TREE for an item close to the value of ITEM, and return it.
- This function will return a null pointer only if TREE is empty. */
-void *
-avl_find_close (const avl_tree *tree, const void *item)
-{
- const avl_node *p;
-
- assert (tree != NULL);
- p = tree->root.link[0];
- if (p == NULL)
- return NULL;
-
- for (;;)
- {
- int diff = tree->cmp (item, p->data, tree->param);
- int t;
-
- if (diff < 0)
- t = 0;
- else if (diff > 0)
- t = 1;
- else
- return p->data;
-
- if (p->link[t])
- p = p->link[t];
- else
- return p->data;
- }
-}
-
-/* Searches AVL tree TREE for an item matching ITEM. If found, the
- item is removed from the tree and the actual item found is returned
- to the caller. If no item matching ITEM exists in the tree,
- returns NULL. */
-void *
-avl_delete (avl_tree *tree, const void *item)
-{
- /* Uses my Algorithm D, which can be found at
- http://www.msu.edu/user/pfaffben/avl. Algorithm D is based on
- Knuth's Algorithm 6.2.2D (Tree deletion) and 6.2.3A (Balanced
- tree search and insertion), as well as the notes on pages 465-466
- of Vol. 3. */
-
- /* D1. */
- avl_node *pa[AVL_MAX_HEIGHT]; /* Stack P: Nodes. */
- char a[AVL_MAX_HEIGHT]; /* Stack P: Bits. */
- int k = 1; /* Stack P: Pointer. */
-
- avl_node **q;
- avl_node *p;
-
- assert (tree != NULL);
-
- a[0] = 0;
- pa[0] = &tree->root;
- p = tree->root.link[0];
- for (;;)
- {
- /* D2. */
- int diff;
-
- if (p == NULL)
- return NULL;
-
- diff = tree->cmp (item, p->data, tree->param);
- if (diff == 0)
- break;
-
- /* D3, D4. */
- pa[k] = p;
- if (diff < 0)
- {
- p = p->link[0];
- a[k] = 0;
- }
- else if (diff > 0)
- {
- p = p->link[1];
- a[k] = 1;
- }
- k++;
- }
- tree->count--;
-
- item = p->data;
-
- /* D5. */
- q = &pa[k - 1]->link[(int) a[k - 1]];
- if (p->link[1] == NULL)
- {
- *q = p->link[0];
- if (*q)
- (*q)->bal = 0;
- }
- else
- {
- /* D6. */
- avl_node *r = p->link[1];
- if (r->link[0] == NULL)
- {
- r->link[0] = p->link[0];
- *q = r;
- r->bal = p->bal;
- a[k] = 1;
- pa[k++] = r;
- }
- else
- {
- /* D7. */
- avl_node *s = r->link[0];
- int l = k++;
-
- a[k] = 0;
- pa[k++] = r;
-
- /* D8. */
- while (s->link[0] != NULL)
- {
- r = s;
- s = r->link[0];
- a[k] = 0;
- pa[k++] = r;
- }
-
- /* D9. */
- a[l] = 1;
- pa[l] = s;
- s->link[0] = p->link[0];
- r->link[0] = s->link[1];
- s->link[1] = p->link[1];
- s->bal = p->bal;
- *q = s;
- }
- }
-
-#if PSPP
- if (tree->owner == NULL)
-#endif
- free (p);
-
- assert (k > 0);
- /* D10. */
- while (--k)
- {
- avl_node *s = pa[k], *r;
-
- if (a[k] == 0)
- {
- /* D10. */
- if (s->bal == -1)
- {
- s->bal = 0;
- continue;
- }
- else if (s->bal == 0)
- {
- s->bal = 1;
- break;
- }
-
- assert (s->bal == +1);
- r = s->link[1];
-
- assert (r != NULL);
- if (r->bal == 0)
- {
- /* D11. */
- s->link[1] = r->link[0];
- r->link[0] = s;
- r->bal = -1;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- break;
- }
- else if (r->bal == +1)
- {
- /* D12. */
- s->link[1] = r->link[0];
- r->link[0] = s;
- s->bal = r->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- }
- else
- {
- /* D13. */
- assert (r->bal == -1);
- p = r->link[0];
- r->link[0] = p->link[1];
- p->link[1] = r;
- s->link[1] = p->link[0];
- p->link[0] = s;
- if (p->bal == +1)
- s->bal = -1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == -1);
- s->bal = 0, r->bal = +1;
- }
- p->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = p;
- }
- }
- else
- {
- assert (a[k] == 1);
-
- /* D10. */
- if (s->bal == +1)
- {
- s->bal = 0;
- continue;
- }
- else if (s->bal == 0)
- {
- s->bal = -1;
- break;
- }
-
- assert (s->bal == -1);
- r = s->link[0];
-
- if (r == NULL || r->bal == 0)
- {
- /* D11. */
- s->link[0] = r->link[1];
- r->link[1] = s;
- r->bal = 1;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- break;
- }
- else if (r->bal == -1)
- {
- /* D12. */
- s->link[0] = r->link[1];
- r->link[1] = s;
- s->bal = r->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- }
- else if (r->bal == +1)
- {
- /* D13. */
- p = r->link[1];
- r->link[1] = p->link[0];
- p->link[0] = r;
- s->link[0] = p->link[1];
- p->link[1] = s;
- if (p->bal == -1)
- s->bal = 1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == 1);
- s->bal = 0, r->bal = -1;
- }
- p->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = p;
- }
- }
- }
-
- return (void *) item;
-}
-
-/* Inserts ITEM into TREE. Returns NULL if the item was inserted,
- otherwise a pointer to the duplicate item. */
-void *
-avl_insert (avl_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = avl_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-/* If ITEM does not exist in TREE, inserts it and returns NULL. If a
- matching item does exist, it is replaced by ITEM and the item
- replaced is returned. The caller is responsible for freeing the
- item returned. */
-void *
-avl_replace (avl_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = avl_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-
-/* Delete ITEM from TREE when you know that ITEM must be in TREE. For
- debugging purposes. */
-void *
-(avl_force_delete) (avl_tree *tree, void *item)
-{
- void *found = avl_delete (tree, item);
- assert (found != NULL);
- return found;
-}
-
-#if SELF_TEST
-
-/* Used to flag delayed aborting. */
-int done = 0;
-
-/* Print the structure of node NODE of an avl tree, which is LEVEL
- levels from the top of the tree. Uses different delimiters to
- visually distinguish levels. */
-void
-print_structure (avl_node *node, int level)
-{
- char lc[] = "([{`/";
- char rc[] = ")]}'\\";
-
- assert (level <= 10);
-
- if (node == NULL)
- {
- printf (" nil");
- return;
- }
- printf (" %c%d", lc[level % 5], (int) node->data);
- if (node->link[0] || node->link[1])
- print_structure (node->link[0], level + 1);
- if (node->link[1])
- print_structure (node->link[1], level + 1);
- printf ("%c", rc[level % 5]);
-}
-
-/* Compare two integers A and B and return a strcmp()-type result. */
-int
-compare_ints (const void *a, const void *b, void *param unused)
-{
- return ((int) a) - ((int) b);
-}
-
-/* Print the value of integer A. */
-void
-print_int (void *a, void *param unused)
-{
- printf (" %d", (int) a);
-}
-
-/* Linearly print contents of TREE. */
-void
-print_contents (avl_tree *tree)
-{
- avl_walk (tree, print_int, NULL);
- printf ("\n");
-}
-
-/* Examine NODE in a avl tree. *COUNT is increased by the number of
- nodes in the tree, including the current one. If the node is the
- root of the tree, PARENT should be INT_MIN, otherwise it should be
- the parent node value. DIR is the direction that the current node
- is linked from the parent: -1 for left child, +1 for right child;
- it is not used if PARENT is INT_MIN. Returns the height of the
- tree rooted at NODE. */
-int
-recurse_tree (avl_node *node, int *count, int parent, int dir)
-{
- if (node)
- {
- int d = (int) node->data;
- int nl = node->link[0] ? recurse_tree (node->link[0], count, d, -1) : 0;
- int nr = node->link[1] ? recurse_tree (node->link[1], count, d, 1) : 0;
- (*count)++;
-
- if (nr - nl != node->bal)
- {
- printf (" Node %d is unbalanced: right height=%d, left height=%d, "
- "difference=%d, but balance factor=%d.\n",
- d, nr, nl, nr - nl, node->bal);
- done = 1;
- }
-
- if (parent != INT_MIN)
- {
- assert (dir == -1 || dir == +1);
- if (dir == -1 && d > parent)
- {
- printf (" Node %d is smaller than its left child %d.\n",
- parent, d);
- done = 1;
- }
- else if (dir == +1 && d < parent)
- {
- printf (" Node %d is larger than its right child %d.\n",
- parent, d);
- done = 1;
- }
- }
- assert (node->bal >= -1 && node->bal <= 1);
- return 1 + (nl > nr ? nl : nr);
- }
- else return 0;
-}
-
-/* Check that everything about TREE is kosher. */
-void
-verify_tree (avl_tree *tree)
-{
- int count = 0;
- recurse_tree (tree->root.link[0], &count, INT_MIN, 0);
- if (count != tree->count)
- {
- printf (" Tree has %d nodes, but tree count is %d.\n",
- count, tree->count);
- done = 1;
- }
- if (done)
- abort ();
-}
-
-/* Arrange the N elements of ARRAY in random order. */
-void
-shuffle (int *array, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j = i + rand () % (n - i);
- int t = array[j];
- array[j] = array[i];
- array[i] = t;
- }
-}
-
-/* Compares avl trees rooted at A and B, making sure that they are
- identical. */
-void
-compare_trees (avl_node *a, avl_node *b)
-{
- if (a == NULL || b == NULL)
- {
- assert (a == NULL && b == NULL);
- return;
- }
- if (a->data != b->data || a->bal != b->bal
- || ((a->link[0] != NULL) ^ (b->link[0] != NULL))
- || ((a->link[1] != NULL) ^ (b->link[1] != NULL)))
- {
- printf (" Copied nodes differ: %d b=%d a->bal=%d b->bal=%d a:",
- (int) a->data, (int) b->data, a->bal, b->bal);
- if (a->link[0])
- printf ("l");
- if (a->link[1])
- printf ("r");
- printf (" b:");
- if (b->link[0])
- printf ("l");
- if (b->link[1])
- printf ("r");
- printf ("\n");
- abort ();
- }
- if (a->link[0] != NULL)
- compare_trees (a->link[0], b->link[0]);
- if (a->link[1] != NULL)
- compare_trees (a->link[1], b->link[1]);
-}
-
-/* Simple stress test procedure for the AVL tree routines. Does the
- following:
-
- * Generate a random number seed. By default this is generated from
- the current time. You can also pass a seed value on the command
- line if you want to test the same case. The seed value is
- displayed.
-
- * Create a tree and insert the integers from 0 up to TREE_SIZE - 1
- into it, in random order. Verify the tree structure after each
- insertion.
-
- * Remove each integer from the tree, in a different random order.
- After each deletion, verify the tree structure; also, make a copy
- of the tree into a new tree, verify the copy and compare it to the
- original, then destroy the copy.
-
- * Destroy the tree, increment the random seed value, and start over.
-
- If you make any modifications to the avl tree routines, then you
- might want to insert some calls to print_structure() at strategic
- places in order to be able to see what's really going on. Also,
- memory debuggers like Checker or Purify are very handy. */
-#define TREE_SIZE 1024
-#define N_ITERATIONS 16
-int
-main (int argc, char **argv)
-{
- int array[TREE_SIZE];
- int seed;
- int iteration;
-
- if (argc == 2)
- seed = atoi (argv[1]);
- else
- seed = time (0) * 257 % 32768;
-
- fputs ("Testing avl...\n", stdout);
-
- for (iteration = 1; iteration <= N_ITERATIONS; iteration++)
- {
- avl_tree *tree;
- int i;
-
- printf ("Iteration %4d/%4d: seed=%5d", iteration, N_ITERATIONS, seed);
- fflush (stdout);
-
- srand (seed++);
-
- for (i = 0; i < TREE_SIZE; i++)
- array[i] = i;
- shuffle (array, TREE_SIZE);
-
- tree = avl_create (compare_ints, NULL);
- for (i = 0; i < TREE_SIZE; i++)
- avl_force_insert (tree, (void *) (array[i]));
- verify_tree (tree);
-
- shuffle (array, TREE_SIZE);
- for (i = 0; i < TREE_SIZE; i++)
- {
- avl_tree *copy;
-
- avl_delete (tree, (void *) (array[i]));
- verify_tree (tree);
-
- copy = avl_copy (tree, NULL);
- verify_tree (copy);
- compare_trees (tree->root.link[0], copy->root.link[0]);
- avl_destroy (copy, NULL);
-
- if (i % 128 == 0)
- {
- putchar ('.');
- fflush (stdout);
- }
- }
- fputs (" good.\n", stdout);
-
- avl_destroy (tree, NULL);
- }
-
- return 0;
-}
-#endif /* SELF_TEST */
-
-/*
- Local variables:
- compile-command: "gcc -DSELF_TEST=1 -W -Wall -I. -o ./avl-test avl.c"
- End:
-*/
-
diff --git a/avl-1.4.0/avl.h b/avl-1.4.0/avl.h
deleted file mode 100644
index 436a461..0000000
--- a/avl-1.4.0/avl.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file avl.h in libavl. */
-
-#if !avl_h
-#define avl_h 1
-
-/* The default maximum height of 32 allows for AVL trees having
- between 5,704,880 and 4,294,967,295 nodes, depending on order of
- insertion. You may change this compile-time constant as you
- wish. */
-#ifndef AVL_MAX_HEIGHT
-#define AVL_MAX_HEIGHT 32
-#endif
-
-/* Structure for a node in an AVL tree. */
-typedef struct avl_node
- {
- void *data; /* Pointer to data. */
- struct avl_node *link[2]; /* Subtrees. */
- signed char bal; /* Balance factor. */
- char cache; /* Used during insertion. */
- signed char pad[2]; /* Unused. Reserved for threaded trees. */
- }
-avl_node;
-
-/* Used for traversing an AVL tree. */
-typedef struct avl_traverser
- {
- int init; /* Initialized? */
- int nstack; /* Top of stack. */
- const avl_node *p; /* Used for traversal. */
- const avl_node *stack[AVL_MAX_HEIGHT];/* Descended trees. */
- }
-avl_traverser;
-
-/* Initializer for avl_traverser. */
-#define AVL_TRAVERSER_INIT {0}
-
-/* Function types. */
-#if !AVL_FUNC_TYPES
-#define AVL_FUNC_TYPES 1
-typedef int (*avl_comparison_func) (const void *a, const void *b, void *param);
-typedef void (*avl_node_func) (void *data, void *param);
-typedef void *(*avl_copy_func) (void *data, void *param);
-#endif
-
-/* Structure which holds information about an AVL tree. */
-typedef struct avl_tree
- {
-#if PSPP
- struct arena **owner; /* Arena to store nodes. */
-#endif
- avl_node root; /* Tree root node. */
- avl_comparison_func cmp; /* Used to compare keys. */
- int count; /* Number of nodes in the tree. */
- void *param; /* Arbitary user data. */
- }
-avl_tree;
-
-#if PSPP
-#define MAYBE_ARENA struct arena **owner,
-#else
-#define MAYBE_ARENA /* nothing */
-#endif
-
-/* General functions. */
-avl_tree *avl_create (MAYBE_ARENA avl_comparison_func, void *param);
-void avl_destroy (avl_tree *, avl_node_func);
-void avl_free (avl_tree *);
-int avl_count (const avl_tree *);
-avl_tree *avl_copy (MAYBE_ARENA const avl_tree *, avl_copy_func);
-
-/* Walk the tree. */
-void avl_walk (const avl_tree *, avl_node_func, void *param);
-void *avl_traverse (const avl_tree *, avl_traverser *);
-#define avl_init_traverser(TRAVERSER) ((TRAVERSER)->init = 0)
-
-/* Search for a given item. */
-void **avl_probe (avl_tree *, void *);
-void *avl_delete (avl_tree *, const void *);
-void *avl_find (const avl_tree *, const void *);
-void *avl_find_close (const avl_tree *, const void *);
-
-#if __GCC__ >= 2
-extern inline void *
-avl_insert (avl_tree *tree, void *item)
-{
- void **p = avl_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-extern inline void *
-avl_replace (avl_tree *tree, void *item)
-{
- void **p = avl_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-#else /* not gcc */
-void *avl_insert (avl_tree *tree, void *item);
-void *avl_replace (avl_tree *tree, void *item);
-#endif /* not gcc */
-
-/* Easy assertions on insertion & deletion. */
-#ifndef NDEBUG
-#define avl_force_insert(A, B) \
- do \
- { \
- void *r = avl_insert (A, B); \
- assert (r == NULL); \
- } \
- while (0)
-void *avl_force_delete (avl_tree *, void *);
-#else
-#define avl_force_insert(A, B) \
- avl_insert (A, B)
-#define avl_force_delete(A, B) \
- avl_delete (A, B)
-#endif
-
-#endif /* avl_h */
diff --git a/avl-1.4.0/avl.html b/avl-1.4.0/avl.html
deleted file mode 100644
index ef3e51e..0000000
--- a/avl-1.4.0/avl.html
+++ /dev/null
@@ -1,1046 +0,0 @@
-
-
-
-
-libavl manual
-
-
-
-libavl
-A library for manipulation of balanced binary trees
-Ben Pfaff
-
-
-
Table of Contents
-
-
-
-
-
-
-
-
-Consider some techniques that can be used to find a particular item in a
-data set. Typical methods include sequential searching, digital
-searching, hash tables, and binary searching.
-
-
-
-Sequential searching is simple, but slow (O(n)). Digital searching
-requires that the entire data set be known in advance, and memory
-efficient implementations are slow.
-
-
-
-Hash tables are fast (O(1)) for static data sets, but they can be
-wasteful of memory. It can be difficult to choose an effective hash
-function. Some hash tables variants also make deletion an expensive
-operation.
-
-
-
-
-Binary search techniques work almost as quickly (O(log(n)) on an ordered
-table, or on a binary tree. Binary trees also allow easy iteration over
-the data in the tree in sorted order. With hash tables it is necessary
-to sort the data before iterating, and after sorting the data is no
-longer in hash form.
-
-
-
-Binary trees are efficient for insertion, deletion, and searching, if
-data are inserted in random order. But, if data are inserted in order
-using a naive algorithm, binary search degenerates to sequential search.
-
-
-
-
-
-
-In turn, this problem can be solved by rebalancing the tree after
-each insertion or deletion. In rebalancing, nodes are rearranged via
-transformations called rotations using an algorithm that tends to
-minimize the tree's height.
-
-
-
-There are several schemes for rebalancing binary trees. The two most
-common types of balanced tree are AVL trees and red-black
-trees. libavl implements both types:
-
-
-
-
--
-
-
-
-AVL trees, invented by Russian mathematicians G. M. Adel'son-Velskii and
-E. M. Landis, ensure that, for each node, the difference in height
-between its subtrees (the balance factor) is not greater than 1.
-
-
-
-
-Red-black trees, invented by R. Bayer and studied at length by
-L. J. Guibas and R. Sedgewick, assign each node of a tree a color (red
-or black), and specify a set of rules governing how red and black nodes
-may be arranged.
-
-
-
-The table below presents a comparison among unbalanced binary trees, AVL
-trees, and red-black trees. In the table, n is the number of
-nodes in the tree and h is the tree's height before the
-operation. lg is the base-2 logarithm function.
-
-
-
-
-Operation
-
-
- Binary Tree
- | AVL Tree
- | Red-Black Tree
-
-
- |
Time per insertion or deletion
-
-
- O(h)
- | O(lg n)
- | O(lg n)
-
-
- |
Time for insertion of k nodes having sequential values
-
-
- O(k^2)
- | O(n lg n)
- | O(n lg n)
-
-
- |
Time for insertion of k nodes having random values
-
-
- O(n lg n)
- | O(n lg n)
- | O(n lg n)
-
-
- |
Maximum number of rotations per insertion
-
-
- 0
- | 1
- | lg n
-
-
- |
Maximum number of rotations per deletion
-
-
- 0
- | lg n
- | lg n
-
-
- |
Maximum h as a function of n
-
-
- n
- | 1.44 lg (n + 2) - .328
- | 2 lg (n + 1)
-
-
- |
Minimum n as a function of h
-
-
- h
- | 2^((h + .328) / 1.44) - 2
- | 2^(h / 2) - 1
- |
-
-There are alternatives to AVL trees that share some of their properties.
-For instance, skip lists, 2-3 trees, and splay trees all allow O(log(n))
-insertion and deletion. The main disadvantage of these methods is that
-their operations are not as well documented in the literature.
-
-
-
-
-
-
-Threading is a clever method that simplifies binary tree
-traversal.
-
-
-
-Nodes in a unthreaded binary tree that have zero or one subnodes have
-two or one null subnode pointers, respectively. In a threaded binary
-tree, a left child pointer that would otherwise be null is used to point
-to the node's inorder(1)
-predecessor, and in a null right child pointer points to its inorder
-successor.
-
-
-
-In a threaded tree, it is always possible to find the next node and the
-previous node of a node, given only a pointer to the node in question.
-In an unthreaded tree, it's also necessary to have a list of the nodes
-between the node in question and root of the tree.
-
-
-
-Advantages of a threaded tree compared to an unthreaded one include:
-
-
-
-
--
-
-Faster traversal and less memory usage during traversal, since no stack
-need be maintained.
-
-
-
-
-Greater generality, since one can go from a node to its successor or
-predecessor given only the node, simplifying algorithms that require
-moving forward and backward in a tree.
-
-
-
-Some disadvantages of threaded trees are:
-
-
-
-
--
-
-Slower insertion and deletion, since threads need to be maintained. In
-somes cases, this can be alleviated by constructing the tree as an
-unthreaded tree, then threading it with a special libavl function.
-
-
-
-
-In theory, threaded trees need two extra bits per node to indicate
-whether each child pointer points to an ordinary node or the node's
-successor/predecessor node. In libavl, however, these bits are stored
-in a byte that is used for structure alignment padding in unthreaded
-binary trees, so no extra storage is used.
-
-
-
-A right-threaded binary tree is similar to a threaded binary tree,
-but threads are only maintained on the right side of each node. This
-allows for traversal to the right (toward larger values) but not to the
-left (toward smaller values). Right-threaded trees are convenient when
-the properties of a threaded tree are desirable, but traversal in
-reverse sort order is not necessary. Not threading the left links saves
-time in insertions and deletions.
-
-
-
-Left-threaded binary trees also exist, but they are not implemented by
-libavl. The same effect can be obtained by sorting the tree in the
-opposite order.
-
-
-
-
-
-
-
-The following types are defined and used by libavl:
-
-
-
-
-- Data Type: avl_tree
-
-
-
- Data Type: avlt_tree
-
-
-
- Data Type: avltr_tree
-
-
-
- Data Type: rb_tree
-
-
-These are the data types used to represent a tree. Although they are
-defined in the libavl header files, it should never be necessary to
-access them directly. Instead, all accesses should take place through
-libavl functions.
-
-
-
-
-
-- Data Type: avl_node
-
-
-
- Data Type: avlt_node
-
-
-
- Data Type: avltr_node
-
-
-
- Data Type: rb_node
-
-
-These are the data types used to represent individual nodes in a tree.
-Similar cautions apply as with
avl_tree
structures.
-
-
-
-
-
-- Data Type: avl_traverser
-
-
-
- Data Type: avlt_traverser
-
-
-
- Data Type: avltr_traverser
-
-
-
- Data Type: rb_traverser
-
-
-These are the data types used by the
avl_traverse
family of
-functions to iterate across the tree. Again, these are opaque
-structures.
-
-
-
-
-
-- Data Type: avl_comparison_func
-
-
-Every tree must have an ordering defined by a function of this type. It
-must have the following signature:
-
-
-
-
-int compare (const void *a, const void *b, void *param)
-
-
-
-The return value is expected to be like that returned by strcmp
-in the standard C library: negative if a < b, zero if
-a = b, positive if a > b. param is an
-arbitrary value defined by the user when the tree was created.
-
-
-
-
-
-- Data Type: avl_node_func
-
-
-This is a class of function called to perform an operation on a data
-item. Functions of this type have the following signature:
-
-
-
-
-void operate (void *data, void *param)
-
-
-
-data is the data item and param is an arbitrary user-defined
-value set when the tree was created.
-
-
-
-
-
-- Data Type: avl_copy_func
-
-
-
-
-
-This is a class of function called to make a new copy of a node's data.
-Functions of this type have the following signature:
-
-
-
-
-void *copy (void *data, void *param)
-
-
-
-The function should return a new copy of data. param is an
-arbitrary user-defined value set when the tree was created.
-
-
-
-
-
-- Macro: AVL_MAX_HEIGHT
-
-
-This macro defines the maximum height of an AVL tree that can be handled
-by functions that maintain a stack of nodes descended. The default
-value is 32, which allows for AVL trees with a maximum number of nodes
-between 5,704,880 and 4,294,967,295, depending on order of insertion.
-This macro may be defined by the user before including any AVL tree
-header file, in which case libavl will honor that value.
-
-
-
-
-
-- Macro: RB_MAX_HEIGHT
-
-
-This macro defines the maximum height of an AVL tree that can be handled
-by functions that maintain a stack of nodes descended. The default
-value is 32, which allows for red-black trees with a maximum number of
-nodes of at least 65535. This macro may be defined by the user before
-including the red-black tree header file, in which case libavl will
-honor that value.
-
-
-
-
-
-
-
-
-
-
-
-libavl is four libraries in one:
-
-
-
-
--
-
-An unthreaded AVL tree library.
-
-
-
-
-A threaded AVL tree library.
-
-
-
-
-A right-threaded AVL tree library.
-
-
-
-
-A red-black tree library.
-
-
-
-Identifiers in these libraries are prefixed by avl_
,
-avlt_
, avltr_
, and rb_
, with corresponding header
-files `avl.h', `avlt.h', `avltr.h', and `rb.h',
-respectively. The functions that they declare are defined in the
-`.c' files with the same names.
-
-
-
-Most tree functions are implemented in all three libraries, but
-threading allows more generality of operation. So, the threaded and
-right-threaded libraries offer a few additional functions for finding
-the next or previous node from a given node. In addition, they offer
-functions for converting trees from threaded or right-threaded
-representations to unthreaded, and vice versa.(2)
-
-
-
-
-
-
-
-These functions deal with creation and destruction of AVL trees.
-
-
-
-
-- Function: avl_tree * avl_create (avl_comparison_func compare, void *param)
-
-
-
- Function: avlt_tree * avlt_create (avlt_comparison_func compare, void *param)
-
-
-
- Function: avltr_tree * avltr_create (avltr_comparison_func compare, void *param)
-
-
-
- Function: rb_tree * rb_create (avl_comparison_func compare, void *param)
-
-
-Create a new, empty tree with comparison function compare.
-Arbitrary user data param is saved so that it can be passed to
-user callback functions.
-
-
-
-
-
-- Function: void avl_destroy (avl_tree *tree, avl_node_func free)
-
-
-
- Function: void avlt_destroy (avlt_tree *tree, avl_node_func free)
-
-
-
- Function: void avltr_destroy (avltr_tree *tree, avl_node_func free)
-
-
-
- Function: void rb_destroy (rb_tree *tree, avl_node_func free)
-
-
-Destroys tree, releasing all of its storage. If free is
-non-null, then it is called for every node in postorder before that node
-is freed.
-
-
-
-
-
-- Function: void avl_free (avl_tree *tree)
-
-
-
- Function: void avlt_free (avlt_tree *tree)
-
-
-
- Function: void avltr_free (avltr_tree *tree)
-
-
-
- Function: void rb_free (rb_tree *tree)
-
-
-Destroys tree, releasing all of its storage. The data in each
-node is freed with a call to the standard C library function
-
free
.
-
-
-
-
-
-- Function: avl_tree * avl_copy (const avl_tree *tree, avl_copy_func copy)
-
-
-
- Function: avlt_tree * avl_copy (const avlt_tree *tree, avl_copy_func copy)
-
-
-
- Function: avltr_tree * avl_copy (const avltr_tree *tree, avl_copy_func copy)
-
-
-
- Function: rb_tree * rb_copy (const rb_tree *tree, avl_copy_func copy)
-
-
-Copies the contents of tree into a new tree, and returns the new
-tree. If copy is non-null, then it is called to make a new copy
-of each node's data; otherwise, the node data is copied verbatim into
-the new tree.
-
-
-
-
-
-- Function: int avl_count (const avl_tree *tree)
-
-
-
- Function: int avlt_count (const avlt_tree *tree)
-
-
-
- Function: int avltr_count (const avltr_tree *tree)
-
-
-
- Function: int rb_count (const rb_tree *tree)
-
-
-Returns the number of nodes in tree.
-
-
-
-
-
-- Function: void * xmalloc (size_t size)
-
-
-This is not a function defined by libavl. Instead, it is a function
-that the user program can define. It must allocate size bytes
-using
malloc
and return it. It can handle out-of-memory errors
-however it chooses, but it may not ever return a null pointer.
-
-
-
-If there is an xmalloc
function defined for use by libavl, the
-source files (`avl.c', `avlt.c', `avltr.c', `rb.c')
-must be compiled with HAVE_XMALLOC
defined. Otherwise, the
-library will use its internal static xmalloc
, which handles
-out-of-memory errors by printing a message `virtual memory
-exhausted' to stderr and terminating the program with exit code
-EXIT_FAILURE
.
-
-
-
-
-
-
-
-
-These function insert nodes, delete nodes, and search for nodes in
-trees.
-
-
-
-
-- Function: void ** avl_probe (avl_tree *tree, void *data)
-
-
-
- Function: void ** avlt_probe (avlt_tree *tree, void *data)
-
-
-
- Function: void ** avltr_probe (avltr_tree *tree, void *data)
-
-
-
- Function: void ** rb_probe (rb_tree *tree, void *data)
-
-
-These are the workhorse functions for tree insertion. They search
-tree for a node with data matching data. If found, a
-pointer to the matching data is returned. Otherwise, a new node is
-created for data, and a pointer to that data is returned. In
-either case, the pointer returned can be changed by the user, but the
-key data used by the tree's comparison must not be changed(3).
-
-
-
-It is usually easier to use one of the avl_insert
or
-avl_replace
functions instead of avl_probe
directly.
-
-
-
-Please note: It's not a particularly good idea to insert a null
-pointer as a data item into a tree, because several libavl functions
-return a null pointer to indicate failure. You can sometimes avoid a
-problem by using functions that return a pointer to a pointer instead of
-a plain pointer. Also be wary of this when casting an arithmetic type
-to a void pointer for insertion--on typical architectures, 0's become
-null pointers when this is done.
-
-
-
-
-
-- Function: void * avl_insert (avl_tree *tree, void *data)
-
-
-
- Function: void * avlt_insert (avlt_tree *tree, void *data)
-
-
-
- Function: void * avltr_insert (avltr_tree *tree, void *data)
-
-
-
- Function: void * rb_insert (rb_tree *tree, void *data)
-
-
-If a node with data matching data exists in tree, returns
-the matching data item. Otherwise, inserts data into tree
-and returns a null pointer.
-
-
-
-
-
-- Function: void avl_force_insert (avl_tree *tree, void *data)
-
-
-
- Function: void avlt_force_insert (avlt_tree *tree, void *data)
-
-
-
- Function: void avltr_force_insert (avltr_tree *tree, void *data)
-
-
-
- Function: void rb_force_insert (rb_tree *tree, void *data)
-
-
-Inserts data into tree. If a node with data matching
-data exists in tree, aborts the program with an assertion
-violation. This function is implemented as a macro; if it is used, the
-standard C header
assert.h
must also be included. If macro
-NDEBUG
is defined when a libavl header is included, these
-functions are short-circuited to a direct call to avl_insert
,
-and no check is performed.
-
-
-
-
-
-- Function: void * avl_replace (avl_tree *tree, void *data)
-
-
-
- Function: void * avlt_replace (avlt_tree *tree, void *data)
-
-
-
- Function: void * avltr_replace (avltr_tree *tree, void *data)
-
-
-
- Function: void * rb_replace (rb_tree *tree, void *data)
-
-
-If a node with data matching data, such that the comparison
-function returns 0, exists in tree, replaces the node's data with
-data and returns the node's former contents. Otherwise, inserts
-data into tree and returns a null pointer.
-
-
-
-
-
-- Function: void * avl_delete (avl_tree *tree, const void *data)
-
-
-
- Function: void * avlt_delete (avlt_tree *tree, const void *data)
-
-
-
- Function: void * avltr_delete (avltr_tree *tree, const void *data)
-
-
-
- Function: void * rb_delete (rb_tree *tree, const void *data)
-
-
-Searches tree for a node with data matching data. If found,
-the node is deleted and its data is returned. Otherwise, returns a null
-pointer.
-
-
-
-
-
-- Function: void * avl_force_delete (avl_tree *tree, const void *data)
-
-
-
- Function: void * avlt_force_delete (avlt_tree *tree, const void *data)
-
-
-
- Function: void * avltr_force_delete (avltr_tree *tree, const void *data)
-
-
-
- Function: void * rb_force_delete (rb_tree *tree, const void *data)
-
-
-Deletes a node with data matching data from tree. If no
-matching node is found, aborts the program with an assertion violation.
-If macro
NDEBUG
is declared when a libavl header is included,
-these functions are short-circuited to a direct call to
-avl_delete
, and no check is performed.
-
-
-
-
-
-
-
-
-These function search a tree for an item without making an insertion or
-a deletion.
-
-
-
-
-- Function: void * avl_find (avl_tree *tree, const void *data)
-
-
-
- Function: void ** avlt_find (avlt_tree *tree, const void *data)
-
-
-
- Function: void ** avltr_find (avltr_tree *tree, const void *data)
-
-
-
- Function: void * rb_find (rb_tree *tree, const void *data)
-
-
-Searches tree for a node with data matching data, If found,
-returns the node's data (for threaded and right-threaded trees, a
-pointer to the node's data). Otherwise, returns a null pointer.
-
-
-
-
-
-- Function: void * avl_find_close (avl_tree *tree, const void *data)
-
-
-
- Function: void ** avlt_find_close (avlt_tree *tree, const void *data)
-
-
-
- Function: void ** avltr_find_close (avltr_tree *tree, const void *data)
-
-
-
- Function: void * rb_find_close (rb_tree *tree, const void *data)
-
-
-Searches tree for a node with data matching data. If found,
-returns the node's data (for threaded and right-threaded trees, a
-pointer to the node's data). If no matching item is found, then it
-finds a node whose data is "close" to data; either the node
-closest in value to data, or the node either before or after the
-node with the closest value. Returns a null pointer if the tree does
-not contain any nodes.
-
-
-
-
-
-
-
-
-These functions allow the caller to iterate across the items in a tree.
-
-
-
-
-- Function: void avl_walk (const avl_tree *tree, avl_node_func operate, void *param)
-
-
-
- Function: void avlt_walk (const avlt_tree *tree, avl_node_func operate, void *param)
-
-
-
- Function: void avltr_walk (const avltr_tree *tree, avl_node_func operate, void *param)
-
-
-
- Function: void rb_walk (const rb_tree *tree, avl_node_func operate, void *param)
-
-
-Walks through all the nodes in tree, and calls function
-operate for each node in inorder. param overrides the value
-passed to
avl_create
(and family) for this operation only.
-operate must not change the key data in the nodes in a way that
-would reorder the data values or cause two values to become equal.
-
-
-
-
-
-- Function: void * avl_traverse (const avl_tree *tree, avl_traverser *trav)
-
-
-
- Function: void * avlt_traverse (const avlt_tree *tree, avlt_traverser *trav)
-
-
-
- Function: void * avltr_traverse (const avltr_tree *tree, avltr_traverser *trav)
-
-
-
- Function: void * rb_traverse (const rb_tree *tree, rb_traverser *trav)
-
-
-Returns each of tree's nodes' data values in sequence, then a null
-pointer to indicate the last item. trav must be initialized
-before the first call, either in a declaration like that below, or using
-one of the functions below.
-
-
-
-
-avl_traverser trav = AVL_TRAVERSER_INIT;
-
-
-
-Each avl_traverser
(and family) is a separate, independent
-iterator.
-
-
-
-For threaded and right-threaded trees, avlt_next
or
-avltr_next
, respectively, are faster and more memory-efficient
-than avlt_traverse
or avltr_traverse
.
-
-
-
-
-
-- Function: void * avl_init_traverser (avl_traverser *trav)
-
-
-
- Function: void * avlt_init_traverser (avlt_traverser *trav)
-
-
-
- Function: void * avltr_init_traverser (avltr_traverser *trav)
-
-
-
- Function: void * rb_init_traverser (rb_traverser *trav)
-
-
-Initializes the specified tree traverser structure. After this function
-is called, the next call to the corresponding
*_traverse
function
-will return the smallest value in the appropriate tree.
-
-
-
-
-
-- Function: void ** avlt_next (const avlt_tree *tree, void **data)
-
-
-
- Function: void ** avltr_next (const avltr_tree *tree, void **data)
-
-
-data must be a null pointer or a pointer to a data item in AVL
-tree tree. Returns a pointer to the next data item after
-data in tree in inorder (this is the first item if
-data is a null pointer), or a null pointer if data was the
-last item in tree.
-
-
-
-
-
-- Function: void ** avltr_prev (const avltr_tree *tree, void **data)
-
-
-data must be a null pointer or a pointer to a data item in AVL
-tree tree. Returns a pointer to the previous data item before
-data in tree in inorder (this is the last, or greatest
-valued, item if data is a null pointer), or a null pointer if
-data was the first item in tree.
-
-
-
-
-
-
-
-
-
-- Function: avlt_tree * avlt_thread (avl_tree *tree)
-
-
-
- Function: avltr_tree * avltr_thread (avl_tree *tree)
-
-
-Adds symmetric threads or right threads, respectively, to unthreaded AVL
-tree tree and returns a pointer to tree cast to the
-appropriate type. After one of these functions is called, threaded or
-right-threaded functions, as appropriate, must be used with tree;
-unthreaded functions may not be used.
-
-
-
-
-
-- Function: avl_tree * avlt_unthread (avlt_tree *tree)
-
-
-
- Function: avl_tree * avltr_unthread (avltr_tree *tree)
-
-
-Cuts all threads in threaded or right-threaded, respectively, AVL tree
-tree and returns a pointer to tree cast to
avl_tree
-*
. After one of these functions is called, unthreaded functions must
-be used with tree; threaded or right-threaded functions may not be
-used.
-
-
-
-
-
-
-
-
-
-
-
-
-libavl was written by Ben Pfaff blp@gnu.org.
-
-
-
-libavl's generic tree algorithms and AVL algorithms are based on those
-found in Donald Knuth's venerable Art of Computer Programming
-series from Addison-Wesley, primarily Volumes 1 and 3. libavl's
-red-black tree algorithms are based on those found in Cormen et al.,
-Introduction to Algorithms, 2nd ed., from MIT Press.
-
-
-
-
-
-
-
-
a
-
-Adel'son-Velskii, G. M.
-Art of Computer Programming
-author
-AVL tree
-avl_comparison_func
-avl_copy, avl_copy, avl_copy
-avl_copy_func
-avl_count
-avl_create
-avl_delete
-avl_destroy
-avl_find
-avl_find_close
-avl_force_delete
-avl_force_insert
-avl_free
-avl_init_traverser
-avl_insert
-AVL_MAX_HEIGHT
-avl_node
-avl_node_func
-avl_probe
-avl_replace
-avl_traverse
-avl_traverser
-avl_tree
-avl_walk
-avlt_count
-avlt_create
-avlt_delete
-avlt_destroy
-avlt_find
-avlt_find_close
-avlt_force_delete
-avlt_force_insert
-avlt_free
-avlt_init_traverser
-avlt_insert
-avlt_next
-avlt_node
-avlt_probe
-avlt_replace
-avlt_thread
-avlt_traverse
-avlt_traverser
-avlt_tree
-avlt_unthread
-avlt_walk
-avltr_count
-avltr_create
-avltr_delete
-avltr_destroy
-avltr_find
-avltr_find_close
-avltr_force_delete
-avltr_force_insert
-avltr_free
-avltr_init_traverser
-avltr_insert
-avltr_next
-avltr_node
-avltr_prev
-avltr_probe
-avltr_replace
-avltr_thread
-avltr_traverse
-avltr_traverser
-avltr_tree
-avltr_unthread
-avltr_walk
-
-b
-
-binary tree
-
-h
-
-hash table
-
-k
-
-Knuth, Donald Ervin
-
-l
-
-Landis, E. M.
-
-p
-
-Pfaff, Benjamin Levy
-
-r
-
-rb_copy
-rb_count
-rb_create
-rb_delete
-rb_destroy
-rb_find
-rb_find_close
-rb_force_delete
-rb_force_insert
-rb_free
-rb_init_traverser
-rb_insert
-RB_MAX_HEIGHT
-rb_node
-rb_probe
-rb_replace
-rb_traverse
-rb_traverser
-rb_tree
-rb_walk
-rebalancing
-red-black tree
-right threads
-
-t
-
-threads
-
-u
-
-unthreaded
-
-x
-
-xmalloc
-
-
-
-
-
Footnotes
-
-In tree traversal, inorder refers
-to visiting the nodes in their sorted order from smallest to largest.
-
-In general, you
-should build the sort of tree that you need to use, but occasionally it
-is useful to convert between tree types.
-
-It
-can be changed if this would not change the ordering of the nodes in the
-tree; i.e., if this would not cause the data in the node to be less than
-or equal to the previous node's data or greater than or equal to the
-next node's data.
-
-This document was generated on 6 October 1999 using the
-texi2html
-translator version 1.51a.
-
-
diff --git a/avl-1.4.0/avl.info b/avl-1.4.0/avl.info
deleted file mode 100644
index 8dd5330..0000000
--- a/avl-1.4.0/avl.info
+++ /dev/null
@@ -1,708 +0,0 @@
-This is avl.info, produced by makeinfo version 3.12n from avl.texinfo.
-
- This file documents libavl, a library for the manipulation of
-balanced binary trees.
-
- Copyright 1998, 1999 Free Software Foundation, Inc.
-
- Permission is granted to make and distribute verbatim copies of this
-manual provided the copyright notice and this permission notice are
-preserved on all copies.
-
- Permission is granted to copy and distribute modified versions of
-this manual under the conditions for verbatim copying, provided that the
-entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-
- Permission is granted to copy and distribute translations of this
-manual into another language, under the above conditions for modified
-versions, except that this permission notice may be stated in a
-translation approved by the Free Software Foundation.
-
-
-File: avl.info, Node: Top, Next: Introduction to balanced binary trees, Prev: (dir), Up: (dir)
-
- This document describes libavl, a library for manipulation of
-balanced binary trees.
-
- This document applies to libavl version 1.4.0.
-
-* Menu:
-
-* Introduction to balanced binary trees::
-* Introduction to threaded trees::
-* Types::
-* Functions::
-* Tree Creation::
-* Insertion::
-* Searching::
-* Iteration::
-* Conversion::
-* Author::
-* Index::
-
-
-File: avl.info, Node: Introduction to balanced binary trees, Next: Introduction to threaded trees, Prev: Top, Up: Top
-
-Introduction to balanced binary trees
-*************************************
-
- Consider some techniques that can be used to find a particular item
-in a data set. Typical methods include sequential searching, digital
-searching, hash tables, and binary searching.
-
- Sequential searching is simple, but slow (O(n)). Digital searching
-requires that the entire data set be known in advance, and memory
-efficient implementations are slow.
-
- Hash tables are fast (O(1)) for static data sets, but they can be
-wasteful of memory. It can be difficult to choose an effective hash
-function. Some hash tables variants also make deletion an expensive
-operation.
-
- Binary search techniques work almost as quickly (O(log(n)) on an
-ordered table, or on a binary tree. Binary trees also allow easy
-iteration over the data in the tree in sorted order. With hash tables
-it is necessary to sort the data before iterating, and after sorting
-the data is no longer in hash form.
-
- Binary trees are efficient for insertion, deletion, and searching, if
-data are inserted in random order. But, if data are inserted in order
-using a naive algorithm, binary search degenerates to sequential search.
-
- In turn, this problem can be solved by "rebalancing" the tree after
-each insertion or deletion. In rebalancing, nodes are rearranged via
-transformations called "rotations" using an algorithm that tends to
-minimize the tree's height.
-
- There are several schemes for rebalancing binary trees. The two most
-common types of balanced tree are "AVL trees" and "red-black trees".
-libavl implements both types:
-
- * AVL trees, invented by Russian mathematicians G. M.
- Adel'son-Velskii and E. M. Landis, ensure that, for each node, the
- difference in height between its subtrees (the "balance factor")
- is not greater than 1.
-
- * Red-black trees, invented by R. Bayer and studied at length by L.
- J. Guibas and R. Sedgewick, assign each node of a tree a color (red
- or black), and specify a set of rules governing how red and black
- nodes may be arranged.
-
- The table below presents a comparison among unbalanced binary trees,
-AVL trees, and red-black trees. In the table, N is the number of nodes
-in the tree and H is the tree's height before the operation. "lg" is
-the base-2 logarithm function.
-
-Operation
- Binary Tree AVL Tree Red-Black Tree
-Time per insertion or deletion
- O(H) O(lg N) O(lg N)
-Time for insertion of K nodes having sequential values
- O(K^2) O(N lg N) O(N lg N)
-Time for insertion of K nodes having random values
- O(N lg N) O(N lg N) O(N lg N)
-Maximum number of rotations per insertion
- 0 1 lg N
-Maximum number of rotations per deletion
- 0 lg N lg N
-Maximum H as a function of N
- N 1.44 lg (N + 2) - .328 2 lg (N + 1)
-Minimum N as a function of H
- H 2^((H + .328) / 1.44) - 2 2^(H / 2) - 1
-
- There are alternatives to AVL trees that share some of their
-properties. For instance, skip lists, 2-3 trees, and splay trees all
-allow O(log(n)) insertion and deletion. The main disadvantage of these
-methods is that their operations are not as well documented in the
-literature.
-
-
-File: avl.info, Node: Introduction to threaded trees, Next: Types, Prev: Introduction to balanced binary trees, Up: Top
-
-Introduction to threaded trees
-******************************
-
- "Threading" is a clever method that simplifies binary tree traversal.
-
- Nodes in a unthreaded binary tree that have zero or one subnodes have
-two or one null subnode pointers, respectively. In a threaded binary
-tree, a left child pointer that would otherwise be null is used to point
-to the node's inorder(1) predecessor, and in a null right child pointer
-points to its inorder successor.
-
- In a threaded tree, it is always possible to find the next node and
-the previous node of a node, given only a pointer to the node in
-question. In an unthreaded tree, it's also necessary to have a list of
-the nodes between the node in question and root of the tree.
-
- Advantages of a threaded tree compared to an unthreaded one include:
-
- * Faster traversal and less memory usage during traversal, since no
- stack need be maintained.
-
- * Greater generality, since one can go from a node to its successor
- or predecessor given only the node, simplifying algorithms that
- require moving forward and backward in a tree.
-
- Some disadvantages of threaded trees are:
-
- * Slower insertion and deletion, since threads need to be
- maintained. In somes cases, this can be alleviated by
- constructing the tree as an unthreaded tree, then threading it
- with a special libavl function.
-
- * In theory, threaded trees need two extra bits per node to indicate
- whether each child pointer points to an ordinary node or the node's
- successor/predecessor node. In libavl, however, these bits are
- stored in a byte that is used for structure alignment padding in
- unthreaded binary trees, so no extra storage is used.
-
- A "right-threaded binary tree" is similar to a threaded binary tree,
-but threads are only maintained on the right side of each node. This
-allows for traversal to the right (toward larger values) but not to the
-left (toward smaller values). Right-threaded trees are convenient when
-the properties of a threaded tree are desirable, but traversal in
-reverse sort order is not necessary. Not threading the left links saves
-time in insertions and deletions.
-
- Left-threaded binary trees also exist, but they are not implemented
-by libavl. The same effect can be obtained by sorting the tree in the
-opposite order.
-
- ---------- Footnotes ----------
-
- (1) In tree traversal, "inorder" refers to visiting the nodes in
-their sorted order from smallest to largest.
-
-
-File: avl.info, Node: Types, Next: Functions, Prev: Introduction to threaded trees, Up: Top
-
-Types
-*****
-
- The following types are defined and used by libavl:
-
- - Data Type: avl_tree
- - Data Type: avlt_tree
- - Data Type: avltr_tree
- - Data Type: rb_tree
- These are the data types used to represent a tree. Although they
- are defined in the libavl header files, it should never be
- necessary to access them directly. Instead, all accesses should
- take place through libavl functions.
-
- - Data Type: avl_node
- - Data Type: avlt_node
- - Data Type: avltr_node
- - Data Type: rb_node
- These are the data types used to represent individual nodes in a
- tree. Similar cautions apply as with `avl_tree' structures.
-
- - Data Type: avl_traverser
- - Data Type: avlt_traverser
- - Data Type: avltr_traverser
- - Data Type: rb_traverser
- These are the data types used by the `avl_traverse' family of
- functions to iterate across the tree. Again, these are opaque
- structures.
-
- - Data Type: avl_comparison_func
- Every tree must have an ordering defined by a function of this
- type. It must have the following signature:
-
- int COMPARE (const void *A, const void *B, void *PARAM)
-
- The return value is expected to be like that returned by `strcmp'
- in the standard C library: negative if A < B, zero if A = B,
- positive if A > B. PARAM is an arbitrary value defined by the
- user when the tree was created.
-
- - Data Type: avl_node_func
- This is a class of function called to perform an operation on a
- data item. Functions of this type have the following signature:
-
- void OPERATE (void *DATA, void *PARAM)
-
- DATA is the data item and PARAM is an arbitrary user-defined value
- set when the tree was created.
-
- - Data Type: avl_copy_func
- This is a class of function called to make a new copy of a node's
- data. Functions of this type have the following signature:
-
- void *COPY (void *DATA, void *PARAM)
-
- The function should return a new copy of DATA. PARAM is an
- arbitrary user-defined value set when the tree was created.
-
- - Macro: AVL_MAX_HEIGHT
- This macro defines the maximum height of an AVL tree that can be
- handled by functions that maintain a stack of nodes descended.
- The default value is 32, which allows for AVL trees with a maximum
- number of nodes between 5,704,880 and 4,294,967,295, depending on
- order of insertion. This macro may be defined by the user before
- including any AVL tree header file, in which case libavl will
- honor that value.
-
- - Macro: RB_MAX_HEIGHT
- This macro defines the maximum height of an AVL tree that can be
- handled by functions that maintain a stack of nodes descended.
- The default value is 32, which allows for red-black trees with a
- maximum number of nodes of at least 65535. This macro may be
- defined by the user before including the red-black tree header
- file, in which case libavl will honor that value.
-
-
-File: avl.info, Node: Functions, Next: Tree Creation, Prev: Types, Up: Top
-
-Functions
-*********
-
- libavl is four libraries in one:
-
- * An unthreaded AVL tree library.
-
- * A threaded AVL tree library.
-
- * A right-threaded AVL tree library.
-
- * A red-black tree library.
-
- Identifiers in these libraries are prefixed by `avl_', `avlt_',
-`avltr_', and `rb_', with corresponding header files `avl.h', `avlt.h',
-`avltr.h', and `rb.h', respectively. The functions that they declare
-are defined in the `.c' files with the same names.
-
- Most tree functions are implemented in all three libraries, but
-threading allows more generality of operation. So, the threaded and
-right-threaded libraries offer a few additional functions for finding
-the next or previous node from a given node. In addition, they offer
-functions for converting trees from threaded or right-threaded
-representations to unthreaded, and vice versa.(1)
-
- ---------- Footnotes ----------
-
- (1) In general, you should build the sort of tree that you need to
-use, but occasionally it is useful to convert between tree types.
-
-
-File: avl.info, Node: Tree Creation, Next: Insertion, Prev: Functions, Up: Top
-
-Tree Creation
-*************
-
- These functions deal with creation and destruction of AVL trees.
-
- - Function: avl_tree * avl_create (avl_comparison_func COMPARE, void
- *PARAM)
- - Function: avlt_tree * avlt_create (avlt_comparison_func COMPARE,
- void *PARAM)
- - Function: avltr_tree * avltr_create (avltr_comparison_func COMPARE,
- void *PARAM)
- - Function: rb_tree * rb_create (avl_comparison_func COMPARE, void
- *PARAM)
- Create a new, empty tree with comparison function COMPARE.
- Arbitrary user data PARAM is saved so that it can be passed to
- user callback functions.
-
- - Function: void avl_destroy (avl_tree *TREE, avl_node_func FREE)
- - Function: void avlt_destroy (avlt_tree *TREE, avl_node_func FREE)
- - Function: void avltr_destroy (avltr_tree *TREE, avl_node_func FREE)
- - Function: void rb_destroy (rb_tree *TREE, avl_node_func FREE)
- Destroys TREE, releasing all of its storage. If FREE is non-null,
- then it is called for every node in postorder before that node is
- freed.
-
- - Function: void avl_free (avl_tree *TREE)
- - Function: void avlt_free (avlt_tree *TREE)
- - Function: void avltr_free (avltr_tree *TREE)
- - Function: void rb_free (rb_tree *TREE)
- Destroys TREE, releasing all of its storage. The data in each
- node is freed with a call to the standard C library function
- `free'.
-
- - Function: avl_tree * avl_copy (const avl_tree *TREE, avl_copy_func
- COPY)
- - Function: avlt_tree * avl_copy (const avlt_tree *TREE, avl_copy_func
- COPY)
- - Function: avltr_tree * avl_copy (const avltr_tree *TREE,
- avl_copy_func COPY)
- - Function: rb_tree * rb_copy (const rb_tree *TREE, avl_copy_func COPY)
- Copies the contents of TREE into a new tree, and returns the new
- tree. If COPY is non-null, then it is called to make a new copy
- of each node's data; otherwise, the node data is copied verbatim
- into the new tree.
-
- - Function: int avl_count (const avl_tree *TREE)
- - Function: int avlt_count (const avlt_tree *TREE)
- - Function: int avltr_count (const avltr_tree *TREE)
- - Function: int rb_count (const rb_tree *TREE)
- Returns the number of nodes in TREE.
-
- - Function: void * xmalloc (size_t SIZE)
- This is not a function defined by libavl. Instead, it is a
- function that the user program can define. It must allocate SIZE
- bytes using `malloc' and return it. It can handle out-of-memory
- errors however it chooses, but it may not ever return a null
- pointer.
-
- If there is an `xmalloc' function defined for use by libavl, the
- source files (`avl.c', `avlt.c', `avltr.c', `rb.c') must be
- compiled with `HAVE_XMALLOC' defined. Otherwise, the library will
- use its internal static `xmalloc', which handles out-of-memory
- errors by printing a message `virtual memory exhausted' to stderr
- and terminating the program with exit code `EXIT_FAILURE'.
-
-
-File: avl.info, Node: Insertion, Next: Searching, Prev: Tree Creation, Up: Top
-
-Insertion and Deletion
-**********************
-
- These function insert nodes, delete nodes, and search for nodes in
-trees.
-
- - Function: void ** avl_probe (avl_tree *TREE, void *DATA)
- - Function: void ** avlt_probe (avlt_tree *TREE, void *DATA)
- - Function: void ** avltr_probe (avltr_tree *TREE, void *DATA)
- - Function: void ** rb_probe (rb_tree *TREE, void *DATA)
- These are the workhorse functions for tree insertion. They search
- TREE for a node with data matching DATA. If found, a pointer to
- the matching data is returned. Otherwise, a new node is created
- for DATA, and a pointer to that data is returned. In either case,
- the pointer returned can be changed by the user, but the key data
- used by the tree's comparison must not be changed(1).
-
- It is usually easier to use one of the `avl_insert' or
- `avl_replace' functions instead of `avl_probe' directly.
-
- *Please note:* It's not a particularly good idea to insert a null
- pointer as a data item into a tree, because several libavl
- functions return a null pointer to indicate failure. You can
- sometimes avoid a problem by using functions that return a pointer
- to a pointer instead of a plain pointer. Also be wary of this
- when casting an arithmetic type to a void pointer for
- insertion--on typical architectures, 0's become null pointers when
- this is done.
-
- - Function: void * avl_insert (avl_tree *TREE, void *DATA)
- - Function: void * avlt_insert (avlt_tree *TREE, void *DATA)
- - Function: void * avltr_insert (avltr_tree *TREE, void *DATA)
- - Function: void * rb_insert (rb_tree *TREE, void *DATA)
- If a node with data matching DATA exists in TREE, returns the
- matching data item. Otherwise, inserts DATA into TREE and returns
- a null pointer.
-
- - Function: void avl_force_insert (avl_tree *TREE, void *DATA)
- - Function: void avlt_force_insert (avlt_tree *TREE, void *DATA)
- - Function: void avltr_force_insert (avltr_tree *TREE, void *DATA)
- - Function: void rb_force_insert (rb_tree *TREE, void *DATA)
- Inserts DATA into TREE. If a node with data matching DATA exists
- in TREE, aborts the program with an assertion violation. This
- function is implemented as a macro; if it is used, the standard C
- header `assert.h' must also be included. If macro `NDEBUG' is
- defined when a libavl header is included, these functions are
- short-circuited to a direct call to `avl_insert', and no check is
- performed.
-
- - Function: void * avl_replace (avl_tree *TREE, void *DATA)
- - Function: void * avlt_replace (avlt_tree *TREE, void *DATA)
- - Function: void * avltr_replace (avltr_tree *TREE, void *DATA)
- - Function: void * rb_replace (rb_tree *TREE, void *DATA)
- If a node with data matching DATA, such that the comparison
- function returns 0, exists in TREE, replaces the node's data with
- DATA and returns the node's former contents. Otherwise, inserts
- DATA into TREE and returns a null pointer.
-
- - Function: void * avl_delete (avl_tree *TREE, const void *DATA)
- - Function: void * avlt_delete (avlt_tree *TREE, const void *DATA)
- - Function: void * avltr_delete (avltr_tree *TREE, const void *DATA)
- - Function: void * rb_delete (rb_tree *TREE, const void *DATA)
- Searches TREE for a node with data matching DATA. If found, the
- node is deleted and its data is returned. Otherwise, returns a
- null pointer.
-
- - Function: void * avl_force_delete (avl_tree *TREE, const void *DATA)
- - Function: void * avlt_force_delete (avlt_tree *TREE, const void
- *DATA)
- - Function: void * avltr_force_delete (avltr_tree *TREE, const void
- *DATA)
- - Function: void * rb_force_delete (rb_tree *TREE, const void *DATA)
- Deletes a node with data matching DATA from TREE. If no matching
- node is found, aborts the program with an assertion violation. If
- macro `NDEBUG' is declared when a libavl header is included, these
- functions are short-circuited to a direct call to `avl_delete',
- and no check is performed.
-
- ---------- Footnotes ----------
-
- (1) It can be changed if this would not change the ordering of the
-nodes in the tree; i.e., if this would not cause the data in the node
-to be less than or equal to the previous node's data or greater than or
-equal to the next node's data.
-
-
-File: avl.info, Node: Searching, Next: Iteration, Prev: Insertion, Up: Top
-
-Searching
-*********
-
- These function search a tree for an item without making an insertion
-or a deletion.
-
- - Function: void * avl_find (avl_tree *TREE, const void *DATA)
- - Function: void ** avlt_find (avlt_tree *TREE, const void *DATA)
- - Function: void ** avltr_find (avltr_tree *TREE, const void *DATA)
- - Function: void * rb_find (rb_tree *TREE, const void *DATA)
- Searches TREE for a node with data matching DATA, If found,
- returns the node's data (for threaded and right-threaded trees, a
- pointer to the node's data). Otherwise, returns a null pointer.
-
- - Function: void * avl_find_close (avl_tree *TREE, const void *DATA)
- - Function: void ** avlt_find_close (avlt_tree *TREE, const void *DATA)
- - Function: void ** avltr_find_close (avltr_tree *TREE, const void
- *DATA)
- - Function: void * rb_find_close (rb_tree *TREE, const void *DATA)
- Searches TREE for a node with data matching DATA. If found,
- returns the node's data (for threaded and right-threaded trees, a
- pointer to the node's data). If no matching item is found, then it
- finds a node whose data is "close" to DATA; either the node
- closest in value to DATA, or the node either before or after the
- node with the closest value. Returns a null pointer if the tree
- does not contain any nodes.
-
-
-File: avl.info, Node: Iteration, Next: Conversion, Prev: Searching, Up: Top
-
-Iteration
-*********
-
- These functions allow the caller to iterate across the items in a
-tree.
-
- - Function: void avl_walk (const avl_tree *TREE, avl_node_func
- OPERATE, void *PARAM)
- - Function: void avlt_walk (const avlt_tree *TREE, avl_node_func
- OPERATE, void *PARAM)
- - Function: void avltr_walk (const avltr_tree *TREE, avl_node_func
- OPERATE, void *PARAM)
- - Function: void rb_walk (const rb_tree *TREE, avl_node_func OPERATE,
- void *PARAM)
- Walks through all the nodes in TREE, and calls function OPERATE
- for each node in inorder. PARAM overrides the value passed to
- `avl_create' (and family) for this operation only. OPERATE must
- not change the key data in the nodes in a way that would reorder
- the data values or cause two values to become equal.
-
- - Function: void * avl_traverse (const avl_tree *TREE, avl_traverser
- *TRAV)
- - Function: void * avlt_traverse (const avlt_tree *TREE,
- avlt_traverser *TRAV)
- - Function: void * avltr_traverse (const avltr_tree *TREE,
- avltr_traverser *TRAV)
- - Function: void * rb_traverse (const rb_tree *TREE, rb_traverser
- *TRAV)
- Returns each of TREE's nodes' data values in sequence, then a null
- pointer to indicate the last item. TRAV must be initialized
- before the first call, either in a declaration like that below, or
- using one of the functions below.
-
- avl_traverser trav = AVL_TRAVERSER_INIT;
-
- Each `avl_traverser' (and family) is a separate, independent
- iterator.
-
- For threaded and right-threaded trees, `avlt_next' or
- `avltr_next', respectively, are faster and more memory-efficient
- than `avlt_traverse' or `avltr_traverse'.
-
- - Function: void * avl_init_traverser (avl_traverser *TRAV)
- - Function: void * avlt_init_traverser (avlt_traverser *TRAV)
- - Function: void * avltr_init_traverser (avltr_traverser *TRAV)
- - Function: void * rb_init_traverser (rb_traverser *TRAV)
- Initializes the specified tree traverser structure. After this
- function is called, the next call to the corresponding
- `*_traverse' function will return the smallest value in the
- appropriate tree.
-
- - Function: void ** avlt_next (const avlt_tree *TREE, void **DATA)
- - Function: void ** avltr_next (const avltr_tree *TREE, void **DATA)
- DATA must be a null pointer or a pointer to a data item in AVL
- tree TREE. Returns a pointer to the next data item after DATA in
- TREE in inorder (this is the first item if DATA is a null
- pointer), or a null pointer if DATA was the last item in TREE.
-
- - Function: void ** avltr_prev (const avltr_tree *TREE, void **DATA)
- DATA must be a null pointer or a pointer to a data item in AVL
- tree TREE. Returns a pointer to the previous data item before
- DATA in TREE in inorder (this is the last, or greatest valued,
- item if DATA is a null pointer), or a null pointer if DATA was the
- first item in TREE.
-
-
-File: avl.info, Node: Conversion, Next: Author, Prev: Iteration, Up: Top
-
-Conversion
-**********
-
- - Function: avlt_tree * avlt_thread (avl_tree *TREE)
- - Function: avltr_tree * avltr_thread (avl_tree *TREE)
- Adds symmetric threads or right threads, respectively, to
- unthreaded AVL tree TREE and returns a pointer to TREE cast to the
- appropriate type. After one of these functions is called,
- threaded or right-threaded functions, as appropriate, must be used
- with TREE; unthreaded functions may not be used.
-
- - Function: avl_tree * avlt_unthread (avlt_tree *TREE)
- - Function: avl_tree * avltr_unthread (avltr_tree *TREE)
- Cuts all threads in threaded or right-threaded, respectively, AVL
- tree TREE and returns a pointer to TREE cast to `avl_tree *'.
- After one of these functions is called, unthreaded functions must
- be used with TREE; threaded or right-threaded functions may not be
- used.
-
-
-File: avl.info, Node: Author, Next: Index, Prev: Conversion, Up: Top
-
-Author
-******
-
- libavl was written by Ben Pfaff .
-
- libavl's generic tree algorithms and AVL algorithms are based on
-those found in Donald Knuth's venerable `Art of Computer Programming'
-series from Addison-Wesley, primarily Volumes 1 and 3. libavl's
-red-black tree algorithms are based on those found in Cormen et al.,
-`Introduction to Algorithms', 2nd ed., from MIT Press.
-
-
-File: avl.info, Node: Index, Prev: Author, Up: Top
-
-Index
-*****
-
-* Menu:
-
-* `Art of Computer Programming': Author.
-* Adel'son-Velskii, G. M.: Introduction to balanced binary trees.
-* author: Author.
-* AVL tree: Introduction to balanced binary trees.
-* avl_comparison_func: Types.
-* avl_copy: Tree Creation.
-* avl_copy_func: Types.
-* avl_count: Tree Creation.
-* avl_create: Tree Creation.
-* avl_delete: Insertion.
-* avl_destroy: Tree Creation.
-* avl_find: Searching.
-* avl_find_close: Searching.
-* avl_force_delete: Insertion.
-* avl_force_insert: Insertion.
-* avl_free: Tree Creation.
-* avl_init_traverser: Iteration.
-* avl_insert: Insertion.
-* AVL_MAX_HEIGHT: Types.
-* avl_node: Types.
-* avl_node_func: Types.
-* avl_probe: Insertion.
-* avl_replace: Insertion.
-* avl_traverse: Iteration.
-* avl_traverser: Types.
-* avl_tree: Types.
-* avl_walk: Iteration.
-* avlt_count: Tree Creation.
-* avlt_create: Tree Creation.
-* avlt_delete: Insertion.
-* avlt_destroy: Tree Creation.
-* avlt_find: Searching.
-* avlt_find_close: Searching.
-* avlt_force_delete: Insertion.
-* avlt_force_insert: Insertion.
-* avlt_free: Tree Creation.
-* avlt_init_traverser: Iteration.
-* avlt_insert: Insertion.
-* avlt_next: Iteration.
-* avlt_node: Types.
-* avlt_probe: Insertion.
-* avlt_replace: Insertion.
-* avlt_thread: Conversion.
-* avlt_traverse: Iteration.
-* avlt_traverser: Types.
-* avlt_tree: Types.
-* avlt_unthread: Conversion.
-* avlt_walk: Iteration.
-* avltr_count: Tree Creation.
-* avltr_create: Tree Creation.
-* avltr_delete: Insertion.
-* avltr_destroy: Tree Creation.
-* avltr_find: Searching.
-* avltr_find_close: Searching.
-* avltr_force_delete: Insertion.
-* avltr_force_insert: Insertion.
-* avltr_free: Tree Creation.
-* avltr_init_traverser: Iteration.
-* avltr_insert: Insertion.
-* avltr_next: Iteration.
-* avltr_node: Types.
-* avltr_prev: Iteration.
-* avltr_probe: Insertion.
-* avltr_replace: Insertion.
-* avltr_thread: Conversion.
-* avltr_traverse: Iteration.
-* avltr_traverser: Types.
-* avltr_tree: Types.
-* avltr_unthread: Conversion.
-* avltr_walk: Iteration.
-* binary tree: Introduction to balanced binary trees.
-* hash table: Introduction to balanced binary trees.
-* Knuth, Donald Ervin: Author.
-* Landis, E. M.: Introduction to balanced binary trees.
-* Pfaff, Benjamin Levy: Author.
-* rb_copy: Tree Creation.
-* rb_count: Tree Creation.
-* rb_create: Tree Creation.
-* rb_delete: Insertion.
-* rb_destroy: Tree Creation.
-* rb_find: Searching.
-* rb_find_close: Searching.
-* rb_force_delete: Insertion.
-* rb_force_insert: Insertion.
-* rb_free: Tree Creation.
-* rb_init_traverser: Iteration.
-* rb_insert: Insertion.
-* RB_MAX_HEIGHT: Types.
-* rb_node: Types.
-* rb_probe: Insertion.
-* rb_replace: Insertion.
-* rb_traverse: Iteration.
-* rb_traverser: Types.
-* rb_tree: Types.
-* rb_walk: Iteration.
-* rebalancing: Introduction to balanced binary trees.
-* red-black tree: Introduction to balanced binary trees.
-* right threads: Functions.
-* threads: Functions.
-* unthreaded: Functions.
-* xmalloc: Tree Creation.
-
-
-
-Tag Table:
-Node: Top891
-Node: Introduction to balanced binary trees1340
-Node: Introduction to threaded trees5260
-Ref: Introduction to threaded trees-Footnote-17757
-Node: Types7871
-Node: Functions10904
-Ref: Functions-Footnote-111877
-Node: Tree Creation12014
-Node: Insertion15035
-Ref: Insertion-Footnote-119214
-Node: Searching19458
-Node: Iteration20863
-Node: Conversion23929
-Node: Author24875
-Node: Index25345
-
-End Tag Table
diff --git a/avl-1.4.0/avl.texinfo b/avl-1.4.0/avl.texinfo
deleted file mode 100644
index 9d06324..0000000
--- a/avl-1.4.0/avl.texinfo
+++ /dev/null
@@ -1,679 +0,0 @@
-\input texinfo @c -*-texinfo-*-
-@c %**start of header
-@setfilename avl.info
-@settitle libavl manual
-@setchapternewpage on
-@c %**end of header
-
-@syncodeindex vr cp
-@syncodeindex fn cp
-@syncodeindex tp cp
-
-@ifinfo
-This file documents libavl, a library for the manipulation of balanced
-binary trees.
-
-Copyright 1998, 1999 Free Software Foundation, Inc.
-
-Permission is granted to make and distribute verbatim copies of this
-manual provided the copyright notice and this permission notice are
-preserved on all copies.
-
-@ignore
-Permission is granted to process this file through TeX and print the
-results, provided the printed document carries a copying permission
-notice identical to this one except for the removal of this paragraph
-(this paragraph not being relevant to the printed manual).
-
-@end ignore
-Permission is granted to copy and distribute modified versions of this
-manual under the conditions for verbatim copying, provided that the
-entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-
-Permission is granted to copy and distribute translations of this manual
-into another language, under the above conditions for modified versions,
-except that this permission notice may be stated in a translation
-approved by the Free Software Foundation.
-@end ifinfo
-
-@titlepage
-@title libavl
-@subtitle A library for manipulation of balanced binary trees
-@author Ben Pfaff
-
-@page
-@vskip 0pt plus 1filll
-Copyright @copyright{} 1998, 1999 Free Software Foundation, Inc.
-
-Permission is granted to make and distribute verbatim copies of this
-manual provided the copyright notice and this permission notice are
-preserved on all copies.
-
-Permission is granted to copy and distribute modified versions of this
-manual under the conditions for verbatim copying, provided that the
-entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-
-Permission is granted to copy and distribute translations of this manual
-into another language, under the above conditions for modified versions,
-except that this permission notice may be stated in a translation
-approved by the Free Software Foundation.
-@end titlepage
-
-@node Top, Introduction to balanced binary trees, (dir), (dir)
-
-@ifinfo
-This document describes libavl, a library for manipulation of balanced
-binary trees.
-
-This document applies to libavl version 1.4.0.
-@end ifinfo
-
-@menu
-* Introduction to balanced binary trees::
-* Introduction to threaded trees::
-* Types::
-* Functions::
-* Tree Creation::
-* Insertion::
-* Searching::
-* Iteration::
-* Conversion::
-* Author::
-* Index::
-@end menu
-
-@node Introduction to balanced binary trees, Introduction to threaded trees, Top, Top
-@chapter Introduction to balanced binary trees
-
-@cindex hash table
-Consider some techniques that can be used to find a particular item in a
-data set. Typical methods include sequential searching, digital
-searching, hash tables, and binary searching.
-
-Sequential searching is simple, but slow (O(n)). Digital searching
-requires that the entire data set be known in advance, and memory
-efficient implementations are slow.
-
-Hash tables are fast (O(1)) for static data sets, but they can be
-wasteful of memory. It can be difficult to choose an effective hash
-function. Some hash tables variants also make deletion an expensive
-operation.
-
-@cindex binary tree
-Binary search techniques work almost as quickly (O(log(n)) on an ordered
-table, or on a binary tree. Binary trees also allow easy iteration over
-the data in the tree in sorted order. With hash tables it is necessary
-to sort the data before iterating, and after sorting the data is no
-longer in hash form.
-
-Binary trees are efficient for insertion, deletion, and searching, if
-data are inserted in random order. But, if data are inserted in order
-using a naive algorithm, binary search degenerates to sequential search.
-
-@cindex red-black tree
-@cindex AVL tree
-@cindex rebalancing
-In turn, this problem can be solved by @dfn{rebalancing} the tree after
-each insertion or deletion. In rebalancing, nodes are rearranged via
-transformations called @dfn{rotations} using an algorithm that tends to
-minimize the tree's height.
-
-There are several schemes for rebalancing binary trees. The two most
-common types of balanced tree are @dfn{AVL trees} and @dfn{red-black
-trees}. libavl implements both types:
-
-@itemize @bullet
-@item
-@cindex Landis, E. M.
-@cindex Adel'son-Velskii, G. M.
-AVL trees, invented by Russian mathematicians G. M. Adel'son-Velskii and
-E. M. Landis, ensure that, for each node, the difference in height
-between its subtrees (the @dfn{balance factor}) is not greater than 1.
-
-@item
-Red-black trees, invented by R. Bayer and studied at length by
-L. J. Guibas and R. Sedgewick, assign each node of a tree a color (red
-or black), and specify a set of rules governing how red and black nodes
-may be arranged.
-@end itemize
-
-The table below presents a comparison among unbalanced binary trees, AVL
-trees, and red-black trees. In the table, @var{n} is the number of
-nodes in the tree and @var{h} is the tree's height before the
-operation. @dfn{lg} is the base-2 logarithm function.
-
-@multitable @columnfractions .05 .30 .35 .30
-
-@need 333
-@item @w{Operation}
-@item
-@tab Binary Tree
-@tab AVL Tree
-@tab Red-Black Tree
-
-@need 333
-@item @w{Time per insertion or deletion}
-@item
-@tab O(@var{h})
-@tab O(lg @var{n})
-@tab O(lg @var{n})
-
-@need 333
-@item @w{Time for insertion of @var{k} nodes having sequential values}
-@item
-@tab O(@math{@var{k}^2})
-@tab O(@var{n} lg @var{n})
-@tab O(@var{n} lg @var{n})
-
-@need 333
-@item @w{Time for insertion of @var{k} nodes having random values}
-@item
-@tab O(@var{n} lg @var{n})
-@tab O(@var{n} lg @var{n})
-@tab O(@var{n} lg @var{n})
-
-@need 333
-@item @w{Maximum number of rotations per insertion}
-@item
-@tab 0
-@tab 1
-@tab lg @var{n}
-
-@need 333
-@item @w{Maximum number of rotations per deletion}
-@item
-@tab 0
-@tab lg @var{n}
-@tab lg @var{n}
-
-@need 333
-@item @w{Maximum @var{h} as a function of @var{n}}
-@item
-@tab @var{n}
-@tab 1.44 lg (@var{n} + 2) - .328
-@tab 2 lg (@var{n} + 1)
-
-@need 333
-@item @w{Minimum @var{n} as a function of @var{h}}
-@item
-@tab @var{h}
-@tab 2^((@var{h} + .328) / 1.44) - 2
-@tab 2^(@var{h} / 2) - 1
-@end multitable
-
-There are alternatives to AVL trees that share some of their properties.
-For instance, skip lists, 2-3 trees, and splay trees all allow O(log(n))
-insertion and deletion. The main disadvantage of these methods is that
-their operations are not as well documented in the literature.
-
-@node Introduction to threaded trees, Types, Introduction to balanced binary trees, Top
-@chapter Introduction to threaded trees
-
-@dfn{Threading} is a clever method that simplifies binary tree
-traversal.
-
-Nodes in a unthreaded binary tree that have zero or one subnodes have
-two or one null subnode pointers, respectively. In a threaded binary
-tree, a left child pointer that would otherwise be null is used to point
-to the node's inorder@footnote{In tree traversal, @dfn{inorder} refers
-to visiting the nodes in their sorted order from smallest to largest.}
-predecessor, and in a null right child pointer points to its inorder
-successor.
-
-In a threaded tree, it is always possible to find the next node and the
-previous node of a node, given only a pointer to the node in question.
-In an unthreaded tree, it's also necessary to have a list of the nodes
-between the node in question and root of the tree.
-
-Advantages of a threaded tree compared to an unthreaded one include:
-
-@itemize @bullet
-@item
-Faster traversal and less memory usage during traversal, since no stack
-need be maintained.
-
-@item
-Greater generality, since one can go from a node to its successor or
-predecessor given only the node, simplifying algorithms that require
-moving forward and backward in a tree.
-@end itemize
-
-Some disadvantages of threaded trees are:
-
-@itemize @bullet
-@item
-Slower insertion and deletion, since threads need to be maintained. In
-somes cases, this can be alleviated by constructing the tree as an
-unthreaded tree, then threading it with a special libavl function.
-
-@item
-In theory, threaded trees need two extra bits per node to indicate
-whether each child pointer points to an ordinary node or the node's
-successor/predecessor node. In libavl, however, these bits are stored
-in a byte that is used for structure alignment padding in unthreaded
-binary trees, so no extra storage is used.
-@end itemize
-
-A @dfn{right-threaded binary tree} is similar to a threaded binary tree,
-but threads are only maintained on the right side of each node. This
-allows for traversal to the right (toward larger values) but not to the
-left (toward smaller values). Right-threaded trees are convenient when
-the properties of a threaded tree are desirable, but traversal in
-reverse sort order is not necessary. Not threading the left links saves
-time in insertions and deletions.
-
-Left-threaded binary trees also exist, but they are not implemented by
-libavl. The same effect can be obtained by sorting the tree in the
-opposite order.
-
-@node Types, Functions, Introduction to threaded trees, Top
-@chapter Types
-
-The following types are defined and used by libavl:
-
-@deftp {Data Type} avl_tree
-@deftpx {Data Type} avlt_tree
-@deftpx {Data Type} avltr_tree
-@deftpx {Data Type} rb_tree
-These are the data types used to represent a tree. Although they are
-defined in the libavl header files, it should never be necessary to
-access them directly. Instead, all accesses should take place through
-libavl functions.
-@end deftp
-
-@deftp {Data Type} avl_node
-@deftpx {Data Type} avlt_node
-@deftpx {Data Type} avltr_node
-@deftpx {Data Type} rb_node
-These are the data types used to represent individual nodes in a tree.
-Similar cautions apply as with @code{avl_tree} structures.
-@end deftp
-
-@deftp {Data Type} avl_traverser
-@deftpx {Data Type} avlt_traverser
-@deftpx {Data Type} avltr_traverser
-@deftpx {Data Type} rb_traverser
-These are the data types used by the @code{avl_traverse} family of
-functions to iterate across the tree. Again, these are opaque
-structures.
-@end deftp
-
-@deftp {Data Type} avl_comparison_func
-Every tree must have an ordering defined by a function of this type. It
-must have the following signature:
-
-@smallexample
-int @var{compare} (const void *@var{a}, const void *@var{b}, void *@var{param})
-@end smallexample
-
-The return value is expected to be like that returned by @code{strcmp}
-in the standard C library: negative if @var{a} < @var{b}, zero if
-@var{a} = @var{b}, positive if @var{a} > @var{b}. @var{param} is an
-arbitrary value defined by the user when the tree was created.
-@end deftp
-
-@deftp {Data Type} avl_node_func
-This is a class of function called to perform an operation on a data
-item. Functions of this type have the following signature:
-
-@smallexample
-void @var{operate} (void *@var{data}, void *@var{param})
-@end smallexample
-
-@var{data} is the data item and @var{param} is an arbitrary user-defined
-value set when the tree was created.
-@end deftp
-
-@deftp {Data Type} avl_copy_func
-
-This is a class of function called to make a new copy of a node's data.
-Functions of this type have the following signature:
-
-@smallexample
-void *@var{copy} (void *@var{data}, void *@var{param})
-@end smallexample
-
-The function should return a new copy of @var{data}. @var{param} is an
-arbitrary user-defined value set when the tree was created.
-@end deftp
-
-@defmac AVL_MAX_HEIGHT
-This macro defines the maximum height of an AVL tree that can be handled
-by functions that maintain a stack of nodes descended. The default
-value is 32, which allows for AVL trees with a maximum number of nodes
-between 5,704,880 and 4,294,967,295, depending on order of insertion.
-This macro may be defined by the user before including any AVL tree
-header file, in which case libavl will honor that value.
-@end defmac
-
-@defmac RB_MAX_HEIGHT
-This macro defines the maximum height of an AVL tree that can be handled
-by functions that maintain a stack of nodes descended. The default
-value is 32, which allows for red-black trees with a maximum number of
-nodes of at least 65535. This macro may be defined by the user before
-including the red-black tree header file, in which case libavl will
-honor that value.
-@end defmac
-
-@node Functions, Tree Creation, Types, Top
-@chapter Functions
-
-@cindex unthreaded
-@cindex threads
-@cindex right threads
-libavl is four libraries in one:
-
-@itemize @bullet
-@item
-An unthreaded AVL tree library.
-
-@item
-A threaded AVL tree library.
-
-@item
-A right-threaded AVL tree library.
-
-@item
-A red-black tree library.
-@end itemize
-
-Identifiers in these libraries are prefixed by @code{avl_},
-@code{avlt_}, @code{avltr_}, and @code{rb_}, with corresponding header
-files @file{avl.h}, @file{avlt.h}, @file{avltr.h}, and @file{rb.h},
-respectively. The functions that they declare are defined in the
-@file{.c} files with the same names.
-
-Most tree functions are implemented in all three libraries, but
-threading allows more generality of operation. So, the threaded and
-right-threaded libraries offer a few additional functions for finding
-the next or previous node from a given node. In addition, they offer
-functions for converting trees from threaded or right-threaded
-representations to unthreaded, and vice versa.@footnote{In general, you
-should build the sort of tree that you need to use, but occasionally it
-is useful to convert between tree types.}
-
-@node Tree Creation, Insertion, Functions, Top
-@chapter Tree Creation
-
-These functions deal with creation and destruction of AVL trees.
-
-@deftypefun {avl_tree *} avl_create (avl_comparison_func @var{compare}, void *@var{param})
-@deftypefunx {avlt_tree *} avlt_create (avlt_comparison_func @var{compare}, void *@var{param})
-@deftypefunx {avltr_tree *} avltr_create (avltr_comparison_func @var{compare}, void *@var{param})
-@deftypefunx {rb_tree *} rb_create (avl_comparison_func @var{compare}, void *@var{param})
-Create a new, empty tree with comparison function @var{compare}.
-Arbitrary user data @var{param} is saved so that it can be passed to
-user callback functions.
-@end deftypefun
-
-@deftypefun {void} avl_destroy (avl_tree *@var{tree}, avl_node_func @var{free})
-@deftypefunx {void} avlt_destroy (avlt_tree *@var{tree}, avl_node_func @var{free})
-@deftypefunx {void} avltr_destroy (avltr_tree *@var{tree}, avl_node_func @var{free})
-@deftypefunx {void} rb_destroy (rb_tree *@var{tree}, avl_node_func @var{free})
-Destroys @var{tree}, releasing all of its storage. If @var{free} is
-non-null, then it is called for every node in postorder before that node
-is freed.
-@end deftypefun
-
-@deftypefun {void} avl_free (avl_tree *@var{tree})
-@deftypefunx {void} avlt_free (avlt_tree *@var{tree})
-@deftypefunx {void} avltr_free (avltr_tree *@var{tree})
-@deftypefunx {void} rb_free (rb_tree *@var{tree})
-Destroys @var{tree}, releasing all of its storage. The data in each
-node is freed with a call to the standard C library function
-@code{free}.
-@end deftypefun
-
-@deftypefun {avl_tree *} avl_copy (const avl_tree *@var{tree}, avl_copy_func @var{copy})
-@deftypefunx {avlt_tree *} avl_copy (const avlt_tree *@var{tree}, avl_copy_func @var{copy})
-@deftypefunx {avltr_tree *} avl_copy (const avltr_tree *@var{tree}, avl_copy_func @var{copy})
-@deftypefunx {rb_tree *} rb_copy (const rb_tree *@var{tree}, avl_copy_func @var{copy})
-Copies the contents of @var{tree} into a new tree, and returns the new
-tree. If @var{copy} is non-null, then it is called to make a new copy
-of each node's data; otherwise, the node data is copied verbatim into
-the new tree.
-@end deftypefun
-
-@deftypefun int avl_count (const avl_tree *@var{tree})
-@deftypefunx int avlt_count (const avlt_tree *@var{tree})
-@deftypefunx int avltr_count (const avltr_tree *@var{tree})
-@deftypefunx int rb_count (const rb_tree *@var{tree})
-Returns the number of nodes in @var{tree}.
-@end deftypefun
-
-@deftypefun {void *} xmalloc (size_t @var{size})
-This is not a function defined by libavl. Instead, it is a function
-that the user program can define. It must allocate @var{size} bytes
-using @code{malloc} and return it. It can handle out-of-memory errors
-however it chooses, but it may not ever return a null pointer.
-
-If there is an @code{xmalloc} function defined for use by libavl, the
-source files (@file{avl.c}, @file{avlt.c}, @file{avltr.c}, @file{rb.c})
-must be compiled with @code{HAVE_XMALLOC} defined. Otherwise, the
-library will use its internal static @code{xmalloc}, which handles
-out-of-memory errors by printing a message @samp{virtual memory
-exhausted} to stderr and terminating the program with exit code
-@code{EXIT_FAILURE}.
-@end deftypefun
-
-@node Insertion, Searching, Tree Creation, Top
-@chapter Insertion and Deletion
-
-These function insert nodes, delete nodes, and search for nodes in
-trees.
-
-@deftypefun {void **} avl_probe (avl_tree *@var{tree}, void *@var{data})
-@deftypefunx {void **} avlt_probe (avlt_tree *@var{tree}, void *@var{data})
-@deftypefunx {void **} avltr_probe (avltr_tree *@var{tree}, void *@var{data})
-@deftypefunx {void **} rb_probe (rb_tree *@var{tree}, void *@var{data})
-These are the workhorse functions for tree insertion. They search
-@var{tree} for a node with data matching @var{data}. If found, a
-pointer to the matching data is returned. Otherwise, a new node is
-created for @var{data}, and a pointer to that data is returned. In
-either case, the pointer returned can be changed by the user, but the
-key data used by the tree's comparison must not be changed@footnote{It
-can be changed if this would not change the ordering of the nodes in the
-tree; i.e., if this would not cause the data in the node to be less than
-or equal to the previous node's data or greater than or equal to the
-next node's data.}.
-
-It is usually easier to use one of the @code{avl_insert} or
-@code{avl_replace} functions instead of @code{avl_probe} directly.
-
-@strong{Please note:} It's not a particularly good idea to insert a null
-pointer as a data item into a tree, because several libavl functions
-return a null pointer to indicate failure. You can sometimes avoid a
-problem by using functions that return a pointer to a pointer instead of
-a plain pointer. Also be wary of this when casting an arithmetic type
-to a void pointer for insertion---on typical architectures, 0's become
-null pointers when this is done.
-@end deftypefun
-
-@deftypefun {void *} avl_insert (avl_tree *@var{tree}, void *@var{data})
-@deftypefunx {void *} avlt_insert (avlt_tree *@var{tree}, void *@var{data})
-@deftypefunx {void *} avltr_insert (avltr_tree *@var{tree}, void *@var{data})
-@deftypefunx {void *} rb_insert (rb_tree *@var{tree}, void *@var{data})
-If a node with data matching @var{data} exists in @var{tree}, returns
-the matching data item. Otherwise, inserts @var{data} into @var{tree}
-and returns a null pointer.
-@end deftypefun
-
-@deftypefun void avl_force_insert (avl_tree *@var{tree}, void *@var{data})
-@deftypefunx void avlt_force_insert (avlt_tree *@var{tree}, void *@var{data})
-@deftypefunx void avltr_force_insert (avltr_tree *@var{tree}, void *@var{data})
-@deftypefunx void rb_force_insert (rb_tree *@var{tree}, void *@var{data})
-Inserts @var{data} into @var{tree}. If a node with data matching
-@var{data} exists in @var{tree}, aborts the program with an assertion
-violation. This function is implemented as a macro; if it is used, the
-standard C header @code{assert.h} must also be included. If macro
-@code{NDEBUG} is defined when a libavl header is included, these
-functions are short-circuited to a direct call to @code{avl_insert},
-and no check is performed.
-@end deftypefun
-
-@deftypefun {void *} avl_replace (avl_tree *@var{tree}, void *@var{data})
-@deftypefunx {void *} avlt_replace (avlt_tree *@var{tree}, void *@var{data})
-@deftypefunx {void *} avltr_replace (avltr_tree *@var{tree}, void *@var{data})
-@deftypefunx {void *} rb_replace (rb_tree *@var{tree}, void *@var{data})
-If a node with data matching @var{data}, such that the comparison
-function returns 0, exists in @var{tree}, replaces the node's data with
-@var{data} and returns the node's former contents. Otherwise, inserts
-@var{data} into @var{tree} and returns a null pointer.
-@end deftypefun
-
-@deftypefun {void *} avl_delete (avl_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} avlt_delete (avlt_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} avltr_delete (avltr_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} rb_delete (rb_tree *@var{tree}, const void *@var{data})
-Searches @var{tree} for a node with data matching @var{data}. If found,
-the node is deleted and its data is returned. Otherwise, returns a null
-pointer.
-@end deftypefun
-
-@deftypefun {void *} avl_force_delete (avl_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} avlt_force_delete (avlt_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} avltr_force_delete (avltr_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} rb_force_delete (rb_tree *@var{tree}, const void *@var{data})
-Deletes a node with data matching @var{data} from @var{tree}. If no
-matching node is found, aborts the program with an assertion violation.
-If macro @code{NDEBUG} is declared when a libavl header is included,
-these functions are short-circuited to a direct call to
-@code{avl_delete}, and no check is performed.
-@end deftypefun
-
-@node Searching, Iteration, Insertion, Top
-@chapter Searching
-
-These function search a tree for an item without making an insertion or
-a deletion.
-
-@deftypefun {void *} avl_find (avl_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void **} avlt_find (avlt_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void **} avltr_find (avltr_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} rb_find (rb_tree *@var{tree}, const void *@var{data})
-Searches @var{tree} for a node with data matching @var{data}, If found,
-returns the node's data (for threaded and right-threaded trees, a
-pointer to the node's data). Otherwise, returns a null pointer.
-@end deftypefun
-
-@deftypefun {void *} avl_find_close (avl_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void **} avlt_find_close (avlt_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void **} avltr_find_close (avltr_tree *@var{tree}, const void *@var{data})
-@deftypefunx {void *} rb_find_close (rb_tree *@var{tree}, const void *@var{data})
-Searches @var{tree} for a node with data matching @var{data}. If found,
-returns the node's data (for threaded and right-threaded trees, a
-pointer to the node's data). If no matching item is found, then it
-finds a node whose data is ``close'' to @var{data}; either the node
-closest in value to @var{data}, or the node either before or after the
-node with the closest value. Returns a null pointer if the tree does
-not contain any nodes.
-@end deftypefun
-
-@node Iteration, Conversion, Searching, Top
-@chapter Iteration
-
-These functions allow the caller to iterate across the items in a tree.
-
-@deftypefun void avl_walk (const avl_tree *@var{tree}, avl_node_func @var{operate}, void *@var{param})
-@deftypefunx void avlt_walk (const avlt_tree *@var{tree}, avl_node_func @var{operate}, void *@var{param})
-@deftypefunx void avltr_walk (const avltr_tree *@var{tree}, avl_node_func @var{operate}, void *@var{param})
-@deftypefunx void rb_walk (const rb_tree *@var{tree}, avl_node_func @var{operate}, void *@var{param})
-Walks through all the nodes in @var{tree}, and calls function
-@var{operate} for each node in inorder. @var{param} overrides the value
-passed to @code{avl_create} (and family) for this operation only.
-@var{operate} must not change the key data in the nodes in a way that
-would reorder the data values or cause two values to become equal.
-@end deftypefun
-
-@deftypefun {void *} avl_traverse (const avl_tree *@var{tree}, avl_traverser *@var{trav})
-@deftypefunx {void *} avlt_traverse (const avlt_tree *@var{tree}, avlt_traverser *@var{trav})
-@deftypefunx {void *} avltr_traverse (const avltr_tree *@var{tree}, avltr_traverser *@var{trav})
-@deftypefunx {void *} rb_traverse (const rb_tree *@var{tree}, rb_traverser *@var{trav})
-Returns each of @var{tree}'s nodes' data values in sequence, then a null
-pointer to indicate the last item. @var{trav} must be initialized
-before the first call, either in a declaration like that below, or using
-one of the functions below.
-
-@smallexample
-avl_traverser trav = AVL_TRAVERSER_INIT;
-@end smallexample
-
-Each @code{avl_traverser} (and family) is a separate, independent
-iterator.
-
-For threaded and right-threaded trees, @code{avlt_next} or
-@code{avltr_next}, respectively, are faster and more memory-efficient
-than @code{avlt_traverse} or @code{avltr_traverse}.
-@end deftypefun
-
-@deftypefun {void *} avl_init_traverser (avl_traverser *@var{trav})
-@deftypefunx {void *} avlt_init_traverser (avlt_traverser *@var{trav})
-@deftypefunx {void *} avltr_init_traverser (avltr_traverser *@var{trav})
-@deftypefunx {void *} rb_init_traverser (rb_traverser *@var{trav})
-Initializes the specified tree traverser structure. After this function
-is called, the next call to the corresponding @code{*_traverse} function
-will return the smallest value in the appropriate tree.
-@end deftypefun
-
-@deftypefun {void **} avlt_next (const avlt_tree *@var{tree}, void **@var{data})
-@deftypefunx {void **} avltr_next (const avltr_tree *@var{tree}, void **@var{data})
-@var{data} must be a null pointer or a pointer to a data item in AVL
-tree @var{tree}. Returns a pointer to the next data item after
-@var{data} in @var{tree} in inorder (this is the first item if
-@var{data} is a null pointer), or a null pointer if @var{data} was the
-last item in @var{tree}.
-@end deftypefun
-
-@deftypefun {void **} avltr_prev (const avltr_tree *@var{tree}, void **@var{data})
-@var{data} must be a null pointer or a pointer to a data item in AVL
-tree @var{tree}. Returns a pointer to the previous data item before
-@var{data} in @var{tree} in inorder (this is the last, or greatest
-valued, item if @var{data} is a null pointer), or a null pointer if
-@var{data} was the first item in @var{tree}.
-@end deftypefun
-
-@node Conversion, Author, Iteration, Top
-@chapter Conversion
-
-@deftypefun {avlt_tree *} avlt_thread (avl_tree *@var{tree})
-@deftypefunx {avltr_tree *} avltr_thread (avl_tree *@var{tree})
-Adds symmetric threads or right threads, respectively, to unthreaded AVL
-tree @var{tree} and returns a pointer to @var{tree} cast to the
-appropriate type. After one of these functions is called, threaded or
-right-threaded functions, as appropriate, must be used with @var{tree};
-unthreaded functions may not be used.
-@end deftypefun
-
-@deftypefun {avl_tree *} avlt_unthread (avlt_tree *@var{tree})
-@deftypefunx {avl_tree *} avltr_unthread (avltr_tree *@var{tree})
-Cuts all threads in threaded or right-threaded, respectively, AVL tree
-@var{tree} and returns a pointer to @var{tree} cast to @code{avl_tree
-*}. After one of these functions is called, unthreaded functions must
-be used with @var{tree}; threaded or right-threaded functions may not be
-used.
-@end deftypefun
-
-@node Author, Index, Conversion, Top
-@chapter Author
-
-@cindex Pfaff, Benjamin Levy
-@cindex author
-@cindex Knuth, Donald Ervin
-@cindex @cite{Art of Computer Programming}
-libavl was written by Ben Pfaff @email{blp@@gnu.org}.
-
-libavl's generic tree algorithms and AVL algorithms are based on those
-found in Donald Knuth's venerable @cite{Art of Computer Programming}
-series from Addison-Wesley, primarily Volumes 1 and 3. libavl's
-red-black tree algorithms are based on those found in Cormen et al.,
-@cite{Introduction to Algorithms}, 2nd ed., from MIT Press.
-
-@node Index, , Author, Top
-@unnumbered Index
-
-@printindex cp
-
-@contents
-@bye
diff --git a/avl-1.4.0/avl.text b/avl-1.4.0/avl.text
deleted file mode 100644
index 9804050..0000000
--- a/avl-1.4.0/avl.text
+++ /dev/null
@@ -1,636 +0,0 @@
-This file documents libavl, a library for the manipulation of balanced
-binary trees.
-
- Copyright 1998, 1999 Free Software Foundation, Inc.
-
- Permission is granted to make and distribute verbatim copies of this
-manual provided the copyright notice and this permission notice are
-preserved on all copies.
-
- Permission is granted to copy and distribute modified versions of
-this manual under the conditions for verbatim copying, provided that the
-entire resulting derived work is distributed under the terms of a
-permission notice identical to this one.
-
- Permission is granted to copy and distribute translations of this
-manual into another language, under the above conditions for modified
-versions, except that this permission notice may be stated in a
-translation approved by the Free Software Foundation.
-
-This document
-describes libavl, a library for manipulation of balanced binary trees.
-
- This document applies to libavl version 1.4.0.
-
-Introduction to balanced binary trees
-*************************************
-
- Consider some techniques that can be used to find a particular item
-in a data set. Typical methods include sequential searching, digital
-searching, hash tables, and binary searching.
-
- Sequential searching is simple, but slow (O(n)). Digital searching
-requires that the entire data set be known in advance, and memory
-efficient implementations are slow.
-
- Hash tables are fast (O(1)) for static data sets, but they can be
-wasteful of memory. It can be difficult to choose an effective hash
-function. Some hash tables variants also make deletion an expensive
-operation.
-
- Binary search techniques work almost as quickly (O(log(n)) on an
-ordered table, or on a binary tree. Binary trees also allow easy
-iteration over the data in the tree in sorted order. With hash tables
-it is necessary to sort the data before iterating, and after sorting
-the data is no longer in hash form.
-
- Binary trees are efficient for insertion, deletion, and searching, if
-data are inserted in random order. But, if data are inserted in order
-using a naive algorithm, binary search degenerates to sequential search.
-
- In turn, this problem can be solved by "rebalancing" the tree after
-each insertion or deletion. In rebalancing, nodes are rearranged via
-transformations called "rotations" using an algorithm that tends to
-minimize the tree's height.
-
- There are several schemes for rebalancing binary trees. The two most
-common types of balanced tree are "AVL trees" and "red-black trees".
-libavl implements both types:
-
- * AVL trees, invented by Russian mathematicians G. M.
- Adel'son-Velskii and E. M. Landis, ensure that, for each node, the
- difference in height between its subtrees (the "balance factor")
- is not greater than 1.
-
- * Red-black trees, invented by R. Bayer and studied at length by L.
- J. Guibas and R. Sedgewick, assign each node of a tree a color (red
- or black), and specify a set of rules governing how red and black
- nodes may be arranged.
-
- The table below presents a comparison among unbalanced binary trees,
-AVL trees, and red-black trees. In the table, N is the number of nodes
-in the tree and H is the tree's height before the operation. "lg" is
-the base-2 logarithm function.
-
-Operation
- Binary Tree AVL Tree Red-Black Tree
-Time per insertion or deletion
- O(H) O(lg N) O(lg N)
-Time for insertion of K nodes having sequential values
- O(K^2) O(N lg N) O(N lg N)
-Time for insertion of K nodes having random values
- O(N lg N) O(N lg N) O(N lg N)
-Maximum number of rotations per insertion
- 0 1 lg N
-Maximum number of rotations per deletion
- 0 lg N lg N
-Maximum H as a function of N
- N 1.44 lg (N + 2) - .328 2 lg (N + 1)
-Minimum N as a function of H
- H 2^((H + .328) / 1.44) - 2 2^(H / 2) - 1
-
- There are alternatives to AVL trees that share some of their
-properties. For instance, skip lists, 2-3 trees, and splay trees all
-allow O(log(n)) insertion and deletion. The main disadvantage of these
-methods is that their operations are not as well documented in the
-literature.
-
-Introduction to threaded trees
-******************************
-
- "Threading" is a clever method that simplifies binary tree traversal.
-
- Nodes in a unthreaded binary tree that have zero or one subnodes have
-two or one null subnode pointers, respectively. In a threaded binary
-tree, a left child pointer that would otherwise be null is used to point
-to the node's inorder(1) predecessor, and in a null right child pointer
-points to its inorder successor.
-
- In a threaded tree, it is always possible to find the next node and
-the previous node of a node, given only a pointer to the node in
-question. In an unthreaded tree, it's also necessary to have a list of
-the nodes between the node in question and root of the tree.
-
- Advantages of a threaded tree compared to an unthreaded one include:
-
- * Faster traversal and less memory usage during traversal, since no
- stack need be maintained.
-
- * Greater generality, since one can go from a node to its successor
- or predecessor given only the node, simplifying algorithms that
- require moving forward and backward in a tree.
-
- Some disadvantages of threaded trees are:
-
- * Slower insertion and deletion, since threads need to be
- maintained. In somes cases, this can be alleviated by
- constructing the tree as an unthreaded tree, then threading it
- with a special libavl function.
-
- * In theory, threaded trees need two extra bits per node to indicate
- whether each child pointer points to an ordinary node or the node's
- successor/predecessor node. In libavl, however, these bits are
- stored in a byte that is used for structure alignment padding in
- unthreaded binary trees, so no extra storage is used.
-
- A "right-threaded binary tree" is similar to a threaded binary tree,
-but threads are only maintained on the right side of each node. This
-allows for traversal to the right (toward larger values) but not to the
-left (toward smaller values). Right-threaded trees are convenient when
-the properties of a threaded tree are desirable, but traversal in
-reverse sort order is not necessary. Not threading the left links saves
-time in insertions and deletions.
-
- Left-threaded binary trees also exist, but they are not implemented
-by libavl. The same effect can be obtained by sorting the tree in the
-opposite order.
-
- ---------- Footnotes ----------
-
- (1) In tree traversal, "inorder" refers to visiting the nodes in
-their sorted order from smallest to largest.
-
-Types
-*****
-
- The following types are defined and used by libavl:
-
- - Data Type: avl_tree
- - Data Type: avlt_tree
- - Data Type: avltr_tree
- - Data Type: rb_tree
- These are the data types used to represent a tree. Although they
- are defined in the libavl header files, it should never be
- necessary to access them directly. Instead, all accesses should
- take place through libavl functions.
-
- - Data Type: avl_node
- - Data Type: avlt_node
- - Data Type: avltr_node
- - Data Type: rb_node
- These are the data types used to represent individual nodes in a
- tree. Similar cautions apply as with `avl_tree' structures.
-
- - Data Type: avl_traverser
- - Data Type: avlt_traverser
- - Data Type: avltr_traverser
- - Data Type: rb_traverser
- These are the data types used by the `avl_traverse' family of
- functions to iterate across the tree. Again, these are opaque
- structures.
-
- - Data Type: avl_comparison_func
- Every tree must have an ordering defined by a function of this
- type. It must have the following signature:
-
- int COMPARE (const void *A, const void *B, void *PARAM)
-
- The return value is expected to be like that returned by `strcmp'
- in the standard C library: negative if A < B, zero if A = B,
- positive if A > B. PARAM is an arbitrary value defined by the
- user when the tree was created.
-
- - Data Type: avl_node_func
- This is a class of function called to perform an operation on a
- data item. Functions of this type have the following signature:
-
- void OPERATE (void *DATA, void *PARAM)
-
- DATA is the data item and PARAM is an arbitrary user-defined value
- set when the tree was created.
-
- - Data Type: avl_copy_func
- This is a class of function called to make a new copy of a node's
- data. Functions of this type have the following signature:
-
- void *COPY (void *DATA, void *PARAM)
-
- The function should return a new copy of DATA. PARAM is an
- arbitrary user-defined value set when the tree was created.
-
- - Macro: AVL_MAX_HEIGHT
- This macro defines the maximum height of an AVL tree that can be
- handled by functions that maintain a stack of nodes descended.
- The default value is 32, which allows for AVL trees with a maximum
- number of nodes between 5,704,880 and 4,294,967,295, depending on
- order of insertion. This macro may be defined by the user before
- including any AVL tree header file, in which case libavl will
- honor that value.
-
- - Macro: RB_MAX_HEIGHT
- This macro defines the maximum height of an AVL tree that can be
- handled by functions that maintain a stack of nodes descended.
- The default value is 32, which allows for red-black trees with a
- maximum number of nodes of at least 65535. This macro may be
- defined by the user before including the red-black tree header
- file, in which case libavl will honor that value.
-
-Functions
-*********
-
- libavl is four libraries in one:
-
- * An unthreaded AVL tree library.
-
- * A threaded AVL tree library.
-
- * A right-threaded AVL tree library.
-
- * A red-black tree library.
-
- Identifiers in these libraries are prefixed by `avl_', `avlt_',
-`avltr_', and `rb_', with corresponding header files `avl.h', `avlt.h',
-`avltr.h', and `rb.h', respectively. The functions that they declare
-are defined in the `.c' files with the same names.
-
- Most tree functions are implemented in all three libraries, but
-threading allows more generality of operation. So, the threaded and
-right-threaded libraries offer a few additional functions for finding
-the next or previous node from a given node. In addition, they offer
-functions for converting trees from threaded or right-threaded
-representations to unthreaded, and vice versa.(1)
-
- ---------- Footnotes ----------
-
- (1) In general, you should build the sort of tree that you need to
-use, but occasionally it is useful to convert between tree types.
-
-Tree Creation
-*************
-
- These functions deal with creation and destruction of AVL trees.
-
- - Function: avl_tree * avl_create (avl_comparison_func COMPARE, void
- *PARAM)
- - Function: avlt_tree * avlt_create (avlt_comparison_func COMPARE,
- void *PARAM)
- - Function: avltr_tree * avltr_create (avltr_comparison_func COMPARE,
- void *PARAM)
- - Function: rb_tree * rb_create (avl_comparison_func COMPARE, void
- *PARAM)
- Create a new, empty tree with comparison function COMPARE.
- Arbitrary user data PARAM is saved so that it can be passed to
- user callback functions.
-
- - Function: void avl_destroy (avl_tree *TREE, avl_node_func FREE)
- - Function: void avlt_destroy (avlt_tree *TREE, avl_node_func FREE)
- - Function: void avltr_destroy (avltr_tree *TREE, avl_node_func FREE)
- - Function: void rb_destroy (rb_tree *TREE, avl_node_func FREE)
- Destroys TREE, releasing all of its storage. If FREE is non-null,
- then it is called for every node in postorder before that node is
- freed.
-
- - Function: void avl_free (avl_tree *TREE)
- - Function: void avlt_free (avlt_tree *TREE)
- - Function: void avltr_free (avltr_tree *TREE)
- - Function: void rb_free (rb_tree *TREE)
- Destroys TREE, releasing all of its storage. The data in each
- node is freed with a call to the standard C library function
- `free'.
-
- - Function: avl_tree * avl_copy (const avl_tree *TREE, avl_copy_func
- COPY)
- - Function: avlt_tree * avl_copy (const avlt_tree *TREE, avl_copy_func
- COPY)
- - Function: avltr_tree * avl_copy (const avltr_tree *TREE,
- avl_copy_func COPY)
- - Function: rb_tree * rb_copy (const rb_tree *TREE, avl_copy_func COPY)
- Copies the contents of TREE into a new tree, and returns the new
- tree. If COPY is non-null, then it is called to make a new copy
- of each node's data; otherwise, the node data is copied verbatim
- into the new tree.
-
- - Function: int avl_count (const avl_tree *TREE)
- - Function: int avlt_count (const avlt_tree *TREE)
- - Function: int avltr_count (const avltr_tree *TREE)
- - Function: int rb_count (const rb_tree *TREE)
- Returns the number of nodes in TREE.
-
- - Function: void * xmalloc (size_t SIZE)
- This is not a function defined by libavl. Instead, it is a
- function that the user program can define. It must allocate SIZE
- bytes using `malloc' and return it. It can handle out-of-memory
- errors however it chooses, but it may not ever return a null
- pointer.
-
- If there is an `xmalloc' function defined for use by libavl, the
- source files (`avl.c', `avlt.c', `avltr.c', `rb.c') must be
- compiled with `HAVE_XMALLOC' defined. Otherwise, the library will
- use its internal static `xmalloc', which handles out-of-memory
- errors by printing a message `virtual memory exhausted' to stderr
- and terminating the program with exit code `EXIT_FAILURE'.
-
-Insertion and Deletion
-**********************
-
- These function insert nodes, delete nodes, and search for nodes in
-trees.
-
- - Function: void ** avl_probe (avl_tree *TREE, void *DATA)
- - Function: void ** avlt_probe (avlt_tree *TREE, void *DATA)
- - Function: void ** avltr_probe (avltr_tree *TREE, void *DATA)
- - Function: void ** rb_probe (rb_tree *TREE, void *DATA)
- These are the workhorse functions for tree insertion. They search
- TREE for a node with data matching DATA. If found, a pointer to
- the matching data is returned. Otherwise, a new node is created
- for DATA, and a pointer to that data is returned. In either case,
- the pointer returned can be changed by the user, but the key data
- used by the tree's comparison must not be changed(1).
-
- It is usually easier to use one of the `avl_insert' or
- `avl_replace' functions instead of `avl_probe' directly.
-
- *Please note:* It's not a particularly good idea to insert a null
- pointer as a data item into a tree, because several libavl
- functions return a null pointer to indicate failure. You can
- sometimes avoid a problem by using functions that return a pointer
- to a pointer instead of a plain pointer. Also be wary of this
- when casting an arithmetic type to a void pointer for
- insertion--on typical architectures, 0's become null pointers when
- this is done.
-
- - Function: void * avl_insert (avl_tree *TREE, void *DATA)
- - Function: void * avlt_insert (avlt_tree *TREE, void *DATA)
- - Function: void * avltr_insert (avltr_tree *TREE, void *DATA)
- - Function: void * rb_insert (rb_tree *TREE, void *DATA)
- If a node with data matching DATA exists in TREE, returns the
- matching data item. Otherwise, inserts DATA into TREE and returns
- a null pointer.
-
- - Function: void avl_force_insert (avl_tree *TREE, void *DATA)
- - Function: void avlt_force_insert (avlt_tree *TREE, void *DATA)
- - Function: void avltr_force_insert (avltr_tree *TREE, void *DATA)
- - Function: void rb_force_insert (rb_tree *TREE, void *DATA)
- Inserts DATA into TREE. If a node with data matching DATA exists
- in TREE, aborts the program with an assertion violation. This
- function is implemented as a macro; if it is used, the standard C
- header `assert.h' must also be included. If macro `NDEBUG' is
- defined when a libavl header is included, these functions are
- short-circuited to a direct call to `avl_insert', and no check is
- performed.
-
- - Function: void * avl_replace (avl_tree *TREE, void *DATA)
- - Function: void * avlt_replace (avlt_tree *TREE, void *DATA)
- - Function: void * avltr_replace (avltr_tree *TREE, void *DATA)
- - Function: void * rb_replace (rb_tree *TREE, void *DATA)
- If a node with data matching DATA, such that the comparison
- function returns 0, exists in TREE, replaces the node's data with
- DATA and returns the node's former contents. Otherwise, inserts
- DATA into TREE and returns a null pointer.
-
- - Function: void * avl_delete (avl_tree *TREE, const void *DATA)
- - Function: void * avlt_delete (avlt_tree *TREE, const void *DATA)
- - Function: void * avltr_delete (avltr_tree *TREE, const void *DATA)
- - Function: void * rb_delete (rb_tree *TREE, const void *DATA)
- Searches TREE for a node with data matching DATA. If found, the
- node is deleted and its data is returned. Otherwise, returns a
- null pointer.
-
- - Function: void * avl_force_delete (avl_tree *TREE, const void *DATA)
- - Function: void * avlt_force_delete (avlt_tree *TREE, const void
- *DATA)
- - Function: void * avltr_force_delete (avltr_tree *TREE, const void
- *DATA)
- - Function: void * rb_force_delete (rb_tree *TREE, const void *DATA)
- Deletes a node with data matching DATA from TREE. If no matching
- node is found, aborts the program with an assertion violation. If
- macro `NDEBUG' is declared when a libavl header is included, these
- functions are short-circuited to a direct call to `avl_delete',
- and no check is performed.
-
- ---------- Footnotes ----------
-
- (1) It can be changed if this would not change the ordering of the
-nodes in the tree; i.e., if this would not cause the data in the node
-to be less than or equal to the previous node's data or greater than or
-equal to the next node's data.
-
-Searching
-*********
-
- These function search a tree for an item without making an insertion
-or a deletion.
-
- - Function: void * avl_find (avl_tree *TREE, const void *DATA)
- - Function: void ** avlt_find (avlt_tree *TREE, const void *DATA)
- - Function: void ** avltr_find (avltr_tree *TREE, const void *DATA)
- - Function: void * rb_find (rb_tree *TREE, const void *DATA)
- Searches TREE for a node with data matching DATA, If found,
- returns the node's data (for threaded and right-threaded trees, a
- pointer to the node's data). Otherwise, returns a null pointer.
-
- - Function: void * avl_find_close (avl_tree *TREE, const void *DATA)
- - Function: void ** avlt_find_close (avlt_tree *TREE, const void *DATA)
- - Function: void ** avltr_find_close (avltr_tree *TREE, const void
- *DATA)
- - Function: void * rb_find_close (rb_tree *TREE, const void *DATA)
- Searches TREE for a node with data matching DATA. If found,
- returns the node's data (for threaded and right-threaded trees, a
- pointer to the node's data). If no matching item is found, then it
- finds a node whose data is "close" to DATA; either the node
- closest in value to DATA, or the node either before or after the
- node with the closest value. Returns a null pointer if the tree
- does not contain any nodes.
-
-Iteration
-*********
-
- These functions allow the caller to iterate across the items in a
-tree.
-
- - Function: void avl_walk (const avl_tree *TREE, avl_node_func
- OPERATE, void *PARAM)
- - Function: void avlt_walk (const avlt_tree *TREE, avl_node_func
- OPERATE, void *PARAM)
- - Function: void avltr_walk (const avltr_tree *TREE, avl_node_func
- OPERATE, void *PARAM)
- - Function: void rb_walk (const rb_tree *TREE, avl_node_func OPERATE,
- void *PARAM)
- Walks through all the nodes in TREE, and calls function OPERATE
- for each node in inorder. PARAM overrides the value passed to
- `avl_create' (and family) for this operation only. OPERATE must
- not change the key data in the nodes in a way that would reorder
- the data values or cause two values to become equal.
-
- - Function: void * avl_traverse (const avl_tree *TREE, avl_traverser
- *TRAV)
- - Function: void * avlt_traverse (const avlt_tree *TREE,
- avlt_traverser *TRAV)
- - Function: void * avltr_traverse (const avltr_tree *TREE,
- avltr_traverser *TRAV)
- - Function: void * rb_traverse (const rb_tree *TREE, rb_traverser
- *TRAV)
- Returns each of TREE's nodes' data values in sequence, then a null
- pointer to indicate the last item. TRAV must be initialized
- before the first call, either in a declaration like that below, or
- using one of the functions below.
-
- avl_traverser trav = AVL_TRAVERSER_INIT;
-
- Each `avl_traverser' (and family) is a separate, independent
- iterator.
-
- For threaded and right-threaded trees, `avlt_next' or
- `avltr_next', respectively, are faster and more memory-efficient
- than `avlt_traverse' or `avltr_traverse'.
-
- - Function: void * avl_init_traverser (avl_traverser *TRAV)
- - Function: void * avlt_init_traverser (avlt_traverser *TRAV)
- - Function: void * avltr_init_traverser (avltr_traverser *TRAV)
- - Function: void * rb_init_traverser (rb_traverser *TRAV)
- Initializes the specified tree traverser structure. After this
- function is called, the next call to the corresponding
- `*_traverse' function will return the smallest value in the
- appropriate tree.
-
- - Function: void ** avlt_next (const avlt_tree *TREE, void **DATA)
- - Function: void ** avltr_next (const avltr_tree *TREE, void **DATA)
- DATA must be a null pointer or a pointer to a data item in AVL
- tree TREE. Returns a pointer to the next data item after DATA in
- TREE in inorder (this is the first item if DATA is a null
- pointer), or a null pointer if DATA was the last item in TREE.
-
- - Function: void ** avltr_prev (const avltr_tree *TREE, void **DATA)
- DATA must be a null pointer or a pointer to a data item in AVL
- tree TREE. Returns a pointer to the previous data item before
- DATA in TREE in inorder (this is the last, or greatest valued,
- item if DATA is a null pointer), or a null pointer if DATA was the
- first item in TREE.
-
-Conversion
-**********
-
- - Function: avlt_tree * avlt_thread (avl_tree *TREE)
- - Function: avltr_tree * avltr_thread (avl_tree *TREE)
- Adds symmetric threads or right threads, respectively, to
- unthreaded AVL tree TREE and returns a pointer to TREE cast to the
- appropriate type. After one of these functions is called,
- threaded or right-threaded functions, as appropriate, must be used
- with TREE; unthreaded functions may not be used.
-
- - Function: avl_tree * avlt_unthread (avlt_tree *TREE)
- - Function: avl_tree * avltr_unthread (avltr_tree *TREE)
- Cuts all threads in threaded or right-threaded, respectively, AVL
- tree TREE and returns a pointer to TREE cast to `avl_tree *'.
- After one of these functions is called, unthreaded functions must
- be used with TREE; threaded or right-threaded functions may not be
- used.
-
-Author
-******
-
- libavl was written by Ben Pfaff .
-
- libavl's generic tree algorithms and AVL algorithms are based on
-those found in Donald Knuth's venerable `Art of Computer Programming'
-series from Addison-Wesley, primarily Volumes 1 and 3. libavl's
-red-black tree algorithms are based on those found in Cormen et al.,
-`Introduction to Algorithms', 2nd ed., from MIT Press.
-
-Index
-*****
-
-* Menu:
-
-* `Art of Computer Programming': Author.
-* Adel'son-Velskii, G. M.: Introduction to balanced binary trees.
-* author: Author.
-* AVL tree: Introduction to balanced binary trees.
-* avl_comparison_func: Types.
-* avl_copy: Tree Creation.
-* avl_copy_func: Types.
-* avl_count: Tree Creation.
-* avl_create: Tree Creation.
-* avl_delete: Insertion.
-* avl_destroy: Tree Creation.
-* avl_find: Searching.
-* avl_find_close: Searching.
-* avl_force_delete: Insertion.
-* avl_force_insert: Insertion.
-* avl_free: Tree Creation.
-* avl_init_traverser: Iteration.
-* avl_insert: Insertion.
-* AVL_MAX_HEIGHT: Types.
-* avl_node: Types.
-* avl_node_func: Types.
-* avl_probe: Insertion.
-* avl_replace: Insertion.
-* avl_traverse: Iteration.
-* avl_traverser: Types.
-* avl_tree: Types.
-* avl_walk: Iteration.
-* avlt_count: Tree Creation.
-* avlt_create: Tree Creation.
-* avlt_delete: Insertion.
-* avlt_destroy: Tree Creation.
-* avlt_find: Searching.
-* avlt_find_close: Searching.
-* avlt_force_delete: Insertion.
-* avlt_force_insert: Insertion.
-* avlt_free: Tree Creation.
-* avlt_init_traverser: Iteration.
-* avlt_insert: Insertion.
-* avlt_next: Iteration.
-* avlt_node: Types.
-* avlt_probe: Insertion.
-* avlt_replace: Insertion.
-* avlt_thread: Conversion.
-* avlt_traverse: Iteration.
-* avlt_traverser: Types.
-* avlt_tree: Types.
-* avlt_unthread: Conversion.
-* avlt_walk: Iteration.
-* avltr_count: Tree Creation.
-* avltr_create: Tree Creation.
-* avltr_delete: Insertion.
-* avltr_destroy: Tree Creation.
-* avltr_find: Searching.
-* avltr_find_close: Searching.
-* avltr_force_delete: Insertion.
-* avltr_force_insert: Insertion.
-* avltr_free: Tree Creation.
-* avltr_init_traverser: Iteration.
-* avltr_insert: Insertion.
-* avltr_next: Iteration.
-* avltr_node: Types.
-* avltr_prev: Iteration.
-* avltr_probe: Insertion.
-* avltr_replace: Insertion.
-* avltr_thread: Conversion.
-* avltr_traverse: Iteration.
-* avltr_traverser: Types.
-* avltr_tree: Types.
-* avltr_unthread: Conversion.
-* avltr_walk: Iteration.
-* binary tree: Introduction to balanced binary trees.
-* hash table: Introduction to balanced binary trees.
-* Knuth, Donald Ervin: Author.
-* Landis, E. M.: Introduction to balanced binary trees.
-* Pfaff, Benjamin Levy: Author.
-* rb_copy: Tree Creation.
-* rb_count: Tree Creation.
-* rb_create: Tree Creation.
-* rb_delete: Insertion.
-* rb_destroy: Tree Creation.
-* rb_find: Searching.
-* rb_find_close: Searching.
-* rb_force_delete: Insertion.
-* rb_force_insert: Insertion.
-* rb_free: Tree Creation.
-* rb_init_traverser: Iteration.
-* rb_insert: Insertion.
-* RB_MAX_HEIGHT: Types.
-* rb_node: Types.
-* rb_probe: Insertion.
-* rb_replace: Insertion.
-* rb_traverse: Iteration.
-* rb_traverser: Types.
-* rb_tree: Types.
-* rb_walk: Iteration.
-* rebalancing: Introduction to balanced binary trees.
-* red-black tree: Introduction to balanced binary trees.
-* right threads: Functions.
-* threads: Functions.
-* unthreaded: Functions.
-* xmalloc: Tree Creation.
-
diff --git a/avl-1.4.0/avlt.c b/avl-1.4.0/avlt.c
deleted file mode 100644
index d050fba..0000000
--- a/avl-1.4.0/avlt.c
+++ /dev/null
@@ -1,1597 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file avlt.c in libavl. */
-
-#if HAVE_CONFIG_H
-#include
-#endif
-#if SELF_TEST
-#include
-#include
-#endif
-#include
-#include
-#include
-#include
-#include "avlt.h"
-
-/* Tag types. */
-#define PLUS +1
-#define MINUS -1
-
-#if !__GCC__ && !defined (inline)
-#define inline
-#endif
-
-#if __GNUC__ >= 2
-#define unused __attribute__ ((unused))
-#else
-#define unused
-#endif
-
-#ifdef HAVE_XMALLOC
-void *xmalloc (size_t);
-#else /* !HAVE_XMALLOC */
-/* Allocates SIZE bytes of space using malloc(). Aborts if out of
- memory. */
-static void *
-xmalloc (size_t size)
-{
- void *vp;
- if (size == 0)
- return NULL;
- vp = malloc (size);
- assert (vp != NULL);
- if (vp == NULL)
- {
- fprintf (stderr, "virtual memory exhausted\n");
- exit (EXIT_FAILURE);
- }
- return vp;
-}
-#endif /* !HAVE_XMALLOC */
-
-/* Creates an AVL tree in arena OWNER (which can be NULL). The arena
- is owned by the caller, not by the AVL tree. CMP is a order
- function for the data to be stored in the tree. PARAM is arbitrary
- data that becomes an argument to the comparison function. */
-avlt_tree *
-avlt_create (avl_comparison_func cmp, void *param)
-{
- avlt_tree *tree;
-
- assert (cmp != NULL);
- tree = xmalloc (sizeof (avlt_tree));
-
- tree->root.link[0] = tree->root.link[1] = &tree->root;
- tree->root.tag[0] = MINUS;
- tree->root.tag[1] = PLUS;
- tree->cmp = cmp;
- tree->count = 0;
- tree->param = param;
-
- return tree;
-}
-
-/* Destroy tree TREE. Function FREE_FUNC is called for every node in
- the tree as it is destroyed.
-
- No effect if the tree has an arena owner and free_func is NULL.
- The caller owns the arena and must destroy it itself.
-
- Do not attempt to reuse the tree after it has been freed. Create a
- new one. */
-void
-avlt_destroy (avlt_tree *tree, avl_node_func free_func)
-{
- assert (tree != NULL);
-
- if (tree->root.link[0] != &tree->root)
- {
- /* Uses Knuth's Algorithm 2.3.1T as modified in exercise 13
- (postorder traversal). */
-
- /* T1. */
- avlt_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- char ab[AVL_MAX_HEIGHT]; /* Stack A: bits. */
- int ap = 0; /* Stack A: height. */
- avlt_node *p = tree->root.link[0];
-
- for (;;)
- {
- /* T2. */
- for (;;)
- {
- /* T3. */
- ab[ap] = 0;
- an[ap++] = p;
- if (p->tag[0] == MINUS)
- break;
- p = p->link[0];
- }
-
- /* T4. */
- for (;;)
- {
- if (ap == 0)
- goto done;
-
- p = an[--ap];
- if (ab[ap] == 0)
- {
- ab[ap++] = 1;
- if (p->tag[1] == MINUS)
- continue;
- p = p->link[1];
- break;
- }
-
- if (free_func)
- free_func (p->data, tree->param);
- free (p);
- }
- }
- }
-
- done:
- free (tree);
-}
-
-/* avlt_destroy() with FREE_FUNC hardcoded as free(). */
-void
-avlt_free (avlt_tree *tree)
-{
- avlt_destroy (tree, (avl_node_func) free);
-}
-
-/* Return the number of nodes in TREE. */
-int
-avlt_count (const avlt_tree *tree)
-{
- assert (tree != NULL);
- return tree->count;
-}
-
-/* Copy the contents of TREE to a new tree in arena OWNER. If COPY is
- non-NULL, then each data item is passed to function COPY, and the
- return values are inserted into the new tree; otherwise, the items
- are copied verbatim from the old tree to the new tree. Returns the
- new tree. */
-avlt_tree *
-avlt_copy (const avlt_tree *tree, avl_copy_func copy)
-{
- /* Knuth's Algorithm 2.3.1C (copying a binary tree). Additionally
- uses Algorithm 2.3.1I (insertion into a threaded binary tree) and
- Algorithm 2.3.1 exercise 17 (preorder successor in threaded
- binary tree). */
-
- avlt_tree *new_tree;
-
- const avlt_node *p;
- avlt_node *q;
-
- assert (tree != NULL);
- new_tree = avlt_create (tree->cmp, tree->param);
- new_tree->count = tree->count;
- p = &tree->root;
- if (p->link[0] == p)
- return new_tree;
- q = &new_tree->root;
-
- for (;;)
- {
- /* C4. This is Algorithm 2.3.1I modified for insertion to the
- left. Step I2 is not necessary. */
- if (p->tag[0] == PLUS)
- {
- avlt_node *r = xmalloc (sizeof (avlt_node));
-
- r->link[0] = q->link[0];
- r->tag[0] = q->tag[0];
- q->link[0] = r;
- q->tag[0] = PLUS;
- r->link[1] = q;
- r->tag[1] = MINUS;
- }
-
- /* C5: Find preorder successors of P and Q. This is Algorithm
- 2.3.1 exercise 17 but applies its actions to Q as well as
- P. */
- if (p->tag[0] == PLUS)
- {
- p = p->link[0];
- q = q->link[0];
- }
- else
- {
- while (p->tag[1] == MINUS)
- {
- p = p->link[1];
- q = q->link[1];
- }
- p = p->link[1];
- q = q->link[1];
- }
-
- /* C6. */
- if (p == &tree->root)
- {
- assert (q == &new_tree->root);
- return new_tree;
- }
-
- /* C2. This is Algorithm 2.3.1I. Step I2 is not necessary. */
- if (p->tag[1] == PLUS)
- {
- avlt_node *r = xmalloc (sizeof (avlt_node));
-
- r->link[1] = q->link[1];
- r->tag[1] = q->tag[1];
- q->link[1] = r;
- q->tag[1] = PLUS;
- r->link[0] = q;
- r->tag[0] = MINUS;
- }
-
- /* C3. */
- q->bal = p->bal;
- if (copy == NULL)
- q->data = p->data;
- else
- q->data = copy (p->data, tree->param);
- }
-}
-
-/* Threads the unthreaded AVL tree TREE in-place, and returns TREE cast to
- avlt_tree *. */
-avlt_tree *
-avlt_thread (struct avl_tree *_tree)
-{
- /* Uses Knuth's Algorithm 2.3.1 exercise 30 (thread an unthreaded
- tree, with Algorithm 2.3.1T (inorder traversal) for computing
- Q$. */
-
- avlt_tree *tree = (avlt_tree *) _tree;
-
- /* Algorithm T's variables. */
- avlt_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- avlt_node **ap; /* Stack A: stack pointer. */
- avlt_node *tp; /* P. */
-
- /* Algorithm L's variables. */
- avlt_node *p, *q;
-
- assert (tree != NULL);
-
- /* T1. */
- ap = an;
- tp = tree->root.link[0];
-
- /* L1. */
- q = &tree->root;
- q->link[1] = q;
-
- for (;;)
- {
- /* L2. */
- {
- /* T2. */
- while (tp != NULL)
- {
- /* T3. */
- *ap++ = tp;
- tp = tp->link[0];
- }
-
- /* T4. Modified to visit HEAD after fully traversing the
- tree. */
- if (ap == an)
- tp = &tree->root;
- else
- tp = *--ap;
-
- /* T5: Visit P. */
- p = tp;
- }
-
- /* L3. */
- if (q->link[1] == NULL)
- {
- q->link[1] = p;
- q->tag[1] = MINUS;
- }
- else
- q->tag[1] = PLUS;
-
- if (p->link[0] == NULL)
- {
- p->link[0] = q;
- p->tag[0] = MINUS;
- }
- else
- p->tag[0] = PLUS;
-
- /* L4. */
- if (p == &tree->root)
- return tree;
- q = p;
-
- /* T5: Next. */
- tp = tp->link[1];
- }
-}
-
-/* Unthreads the threaded tree TREE in-place, and returns TREE cast to
- avl_tree *. */
-struct avl_tree *
-avlt_unthread (avlt_tree *tree)
-{
- /* Uses Knuth's Algorithm 2.3.1T as modified in exercise 13
- (postorder traversal). */
-
- /* T1. */
- avlt_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- char ab[AVL_MAX_HEIGHT]; /* Stack A: bits. */
- int ap = 0; /* Stack A: height. */
- avlt_node *p;
-
- assert (tree != NULL);
- p = tree->root.link[0];
- if (p != &tree->root)
- for (;;)
- {
- /* T2. */
- for (;;)
- {
- /* T3. */
- ab[ap] = 0;
- an[ap++] = p;
- if (p->tag[0] == MINUS)
- break;
- p = p->link[0];
- }
-
- /* T4. */
- for (;;)
- {
- if (ap == 0)
- goto done;
-
- p = an[--ap];
- if (ab[ap] == 0)
- {
- ab[ap++] = 1;
- if (p->tag[1] == MINUS)
- continue;
- p = p->link[1];
- break;
- }
-
- if (p->tag[0] == MINUS)
- p->link[0] = NULL;
- if (p->tag[1] == MINUS)
- p->link[1] = NULL;
- }
- }
- else
- tree->root.link[0] = NULL;
-
- done:
- tree->root.link[1] = NULL;
- return (struct avl_tree *) tree;
-}
-
-/* Walk tree TREE in inorder, calling WALK_FUNC at each node. Passes
- PARAM to WALK_FUNC. */
-void
-avlt_walk (const avlt_tree *tree, avl_node_func walk_func, void *param)
-{
- const avlt_node *p;
-
- /* Uses Knuth's algorithm 2.3.1D (threaded inorder successor). */
- assert (tree && walk_func);
-
- p = &tree->root;
- for (;;)
- {
- if (p->tag[1] == MINUS)
- p = p->link[1];
- else
- {
- p = p->link[1];
- while (p->tag[0] == PLUS)
- p = p->link[0];
- }
-
- if (p == &tree->root)
- return;
-
- walk_func (p->data, param);
- }
-}
-
-/* Each call to this function for a given TREE and TRAV return the
- next item in the tree in inorder. Initialize the first element of
- TRAV (init) to 0 before calling the first time. Returns NULL when
- out of elements. */
-void *
-avlt_traverse (const avlt_tree *tree, avlt_traverser *trav)
-{
- const avlt_node *p;
-
- assert (tree && trav);
-
- if (trav->init == 0)
- {
- p = &tree->root;
- trav->init = 1;
- }
- else
- p = trav->p;
-
- /* Knuth's Algorithm 2.3.1S (threaded inorder successor). */
- if (p->tag[1] == MINUS)
- p = p->link[1];
- else
- {
- p = p->link[1];
- while (p->tag[0] == PLUS)
- p = p->link[0];
- }
-
- if (p == &tree->root)
- {
- trav->init = 0;
- return NULL;
- }
- else
- {
- trav->p = p;
- return (void *) p->data;
- }
-}
-
-/* Given ITEM, a pointer to a data item in TREE (or NULL), returns a
- pointer to the next item in the tree in comparison order, or NULL
- if ITEM is the last item. */
-void **
-avlt_next (const avlt_tree *tree, void **item)
-{
- const avlt_node *p;
-
- assert (tree != NULL);
- if (item == NULL)
- p = &tree->root;
- else
- p = (avlt_node *) (((char *) item) - offsetof (avlt_node, data));
-
- /* Knuth's Algorithm 2.3.1S (threaded inorder successor). */
- if (p->tag[1] == MINUS)
- p = p->link[1];
- else
- {
- p = p->link[1];
- while (p->tag[0] == PLUS)
- p = p->link[0];
- }
-
- if (p == &tree->root)
- return NULL;
-
- return (void **) &p->data;
-}
-
-/* Given ITEM, a pointer to a data item in TREE (or NULL), returns a
- pointer to the previous item in the tree in comparison order, or
- NULL if ITEM is the first item. */
-void **
-avlt_prev (const avlt_tree *tree, void **item)
-{
- const avlt_node *p;
-
- assert (tree != NULL);
- if (item == NULL)
- {
- /* Find node with greatest value. */
- p = tree->root.link[0];
- if (p == &tree->root)
- return NULL;
- while (p->tag[1] == PLUS)
- p = p->link[1];
- }
- else
- {
- p = (avlt_node *) (((char *) item) - offsetof (avlt_node, data));
-
- /* Knuth's Algorithm 2.3.1S (threaded inorder successor)
- modified to find the predecessor node. */
- if (p->tag[0] == MINUS)
- p = p->link[0];
- else
- {
- assert (p->tag[0] == PLUS);
- p = p->link[0];
- while (p->tag[1] == PLUS)
- p = p->link[1];
- }
- }
-
- if (p == &tree->root)
- return NULL;
-
- return (void **) &p->data;
-}
-
-/* Search TREE for an item matching ITEM. If found, returns a pointer
- to the address of the item. If none is found, ITEM is inserted
- into the tree, and a pointer to the address of ITEM is returned.
- In either case, the pointer returned can be changed by the caller,
- or the returned data item can be directly edited, but the key data
- in the item must not be changed. */
-void **
-avlt_probe (avlt_tree *tree, void *item)
-{
- /* Uses Knuth's Algorithm 6.2.3A (balanced tree search and
- insertion), modified for a threaded binary tree. Caches results
- of comparisons. In empirical tests this eliminates about 25% of
- the comparisons seen under random insertions. */
-
- /* A1. */
- avlt_node *t;
- avlt_node *s, *p, *q, *r;
-
- assert (tree != NULL);
- t = &tree->root;
- s = p = t->link[0];
-
- if (t->tag[0] == MINUS)
- {
- tree->count++;
- assert (tree->count == 1);
- t->tag[0] = PLUS;
- q = t->link[0] = xmalloc (sizeof (avlt_node));
- q->data = item;
- q->link[0] = q->link[1] = t;
- q->tag[0] = q->tag[1] = MINUS;
- q->bal = 0;
- return &q->data;
- }
-
- for (;;)
- {
- /* A2. */
- int diff = tree->cmp (item, p->data, tree->param);
-
- /* A3. */
- if (diff < 0)
- {
- p->cache = 0;
- q = p->link[0];
- if (p->tag[0] == MINUS)
- {
- q = xmalloc (sizeof (avlt_node));
- q->link[0] = p->link[0];
- q->tag[0] = p->tag[0];
- p->link[0] = q;
- p->tag[0] = PLUS;
- q->link[1] = p;
- q->tag[1] = MINUS;
- break;
- }
- }
- /* A4. */
- else if (diff > 0)
- {
- p->cache = 1;
- q = p->link[1];
- if (p->tag[1] == MINUS)
- {
- q = xmalloc (sizeof (avlt_node));
- q->link[1] = p->link[1];
- q->tag[1] = p->tag[1];
- p->link[1] = q;
- p->tag[1] = PLUS;
- q->link[0] = p;
- q->tag[0] = MINUS;
- break;
- }
- }
- else
- /* A2. */
- return &p->data;
-
- /* A3, A4. */
- if (q->bal != 0)
- t = p, s = q;
- p = q;
- }
-
- /* A5. */
- tree->count++;
- q->data = item;
- q->bal = 0;
-
- /* A6. */
- r = p = s->link[(int) s->cache];
- while (p != q)
- {
- p->bal = p->cache * 2 - 1;
- p = p->link[(int) p->cache];
- }
-
- /* A7. */
- if (s->cache == 0)
- {
- /* a = -1. */
- if (s->bal == 0)
- {
- s->bal = -1;
- return &q->data;
- }
- else if (s->bal == +1)
- {
- s->bal = 0;
- return &q->data;
- }
-
- assert (s->bal == -1);
- if (r->bal == -1)
- {
- /* A8. */
- p = r;
- s->link[0] = r->link[1];
- s->tag[0] = r->tag[1];
- r->link[1] = s;
- r->tag[1] = PLUS;
- if (s->link[0] == s)
- {
- s->link[0] = r;
- s->tag[0] = MINUS;
- }
- r->tag[0] = r->tag[1] = PLUS;
- s->bal = r->bal = 0;
- }
- else
- {
- /* A9. */
- assert (r->bal == +1);
- p = r->link[1];
- r->link[1] = p->link[0];
- p->link[0] = r;
- s->link[0] = p->link[1];
- p->link[1] = s;
- if (p->bal == -1)
- s->bal = 1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == +1);
- s->bal = 0, r->bal = -1;
- }
- p->bal = 0;
- p->tag[0] = p->tag[1] = PLUS;
- if (s->link[0] == s)
- {
- s->link[0] = p;
- s->tag[0] = MINUS;
- }
- if (r->link[1] == r)
- {
- r->link[1] = p;
- r->tag[1] = MINUS;
- }
- }
- }
- else
- {
- /* a == +1. */
- if (s->bal == 0)
- {
- s->bal = 1;
- return &q->data;
- }
- else if (s->bal == -1)
- {
- s->bal = 0;
- return &q->data;
- }
-
- assert (s->bal == +1);
- if (r->bal == +1)
- {
- /* A8. */
- p = r;
- s->link[1] = r->link[0];
- s->tag[1] = r->tag[0];
- r->link[0] = s;
- r->tag[0] = PLUS;
- if (s->link[1] == s)
- {
- s->link[1] = r;
- s->tag[1] = MINUS;
- }
- s->bal = r->bal = 0;
- }
- else
- {
- /* A9. */
- assert (r->bal == -1);
- p = r->link[0];
- r->link[0] = p->link[1];
- p->link[1] = r;
- s->link[1] = p->link[0];
- p->link[0] = s;
- if (p->bal == +1)
- s->bal = -1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == -1);
- s->bal = 0, r->bal = 1;
- }
- p->tag[0] = p->tag[1] = PLUS;
- if (s->link[1] == s)
- {
- s->link[1] = p;
- s->tag[1] = MINUS;
- }
- if (r->link[0] == r)
- {
- r->link[0] = p;
- r->tag[0] = MINUS;
- }
- p->bal = 0;
- }
- }
-
- /* A10. */
- if (t != &tree->root && s == t->link[1])
- t->link[1] = p;
- else
- t->link[0] = p;
-
- return &q->data;
-}
-
-/* Search TREE for an item matching ITEM, and return a pointer to it
- if found. */
-void **
-avlt_find (const avlt_tree *tree, const void *item)
-{
- const avlt_node *p;
-
- assert (tree != NULL);
- if (tree->root.tag[0] == MINUS)
- /* Tree is empty. */
- return NULL;
-
- p = tree->root.link[0];
- for (;;)
- {
- int diff = tree->cmp (item, p->data, tree->param);
- int t;
-
- /* A3. */
- if (diff < 0)
- t = 0;
- else if (diff > 0)
- t = 1;
- else
- return (void **) &p->data;
-
- if (p->tag[t] == PLUS)
- p = p->link[t];
- else
- return NULL;
- }
-}
-
-/* Search TREE for an item close to the value of ITEM, and return it.
- This function will return a null pointer only if TREE is empty. */
-void **
-avlt_find_close (const avlt_tree *tree, const void *item)
-{
- const avlt_node *p;
-
- assert (tree != NULL);
- if (tree->root.tag[0] == MINUS)
- /* Tree is empty. */
- return NULL;
-
- p = tree->root.link[0];
- for (;;)
- {
- int diff = tree->cmp (item, p->data, tree->param);
- int t;
-
- /* A3. */
- if (diff < 0)
- t = 0;
- else if (diff > 0)
- t = 1;
- else
- return (void **) &p->data;
-
- if (p->tag[t] == PLUS)
- p = p->link[t];
- else
- return (void **) &p->data;
- }
-}
-
-/* Searches AVL tree TREE for an item matching ITEM. If found, the
- item is removed from the tree and the actual item found is returned
- to the caller. If no item matching ITEM exists in the tree,
- returns NULL. */
-void *
-avlt_delete (avlt_tree *tree, const void *item)
-{
- /* Uses my Algorithm DT, which can be found at
- http://www.msu.edu/user/pfaffben/avl. Algorithm DT is based on
- Knuth's Algorithms 6.2.2D (Tree deletion), 6.2.3A (Balanced tree
- search and insertion), 2.3.1I (Insertion into a threaded binary
- trees), and the notes on pages 465-466 of Vol. 3. */
-
- /* D1. */
- avlt_node *pa[AVL_MAX_HEIGHT]; /* Stack P: Nodes. */
- unsigned char a[AVL_MAX_HEIGHT]; /* Stack P: Bits. */
- int k = 1; /* Stack P: Pointer. */
-
- avlt_node *p;
-
- assert (tree != NULL);
-
- if (tree->root.tag[0] == MINUS)
- /* Empty tree. */
- return NULL;
-
- a[0] = 0;
- pa[0] = &tree->root;
- p = tree->root.link[0];
- for (;;)
- {
- /* D2. */
- int diff = tree->cmp (item, p->data, tree->param);
-
- if (diff == 0)
- break;
-
- /* D3, D4. */
- pa[k] = p;
- if (diff < 0)
- {
- if (p->tag[0] == PLUS)
- {
- p = p->link[0];
- a[k] = 0;
- }
- else
- return NULL;
- }
- else if (diff > 0)
- {
- if (p->tag[1] == PLUS)
- {
- p = p->link[1];
- a[k] = 1;
- }
- else
- return NULL;
- }
-
- k++;
- }
- tree->count--;
-
- item = p->data;
-
- {
- avlt_node *t = p;
- avlt_node **q = &pa[k - 1]->link[(int) a[k - 1]];
-
- /* D5. */
- if (t->tag[1] == MINUS)
- {
- if (t->tag[0] == PLUS)
- {
- avlt_node *const x = t->link[0];
-
- *q = x;
- (*q)->bal = 0;
- if (x->tag[1] == MINUS)
- {
- if (a[k - 1] == 1)
- x->link[1] = t->link[1];
- else
- x->link[1] = pa[k - 1];
- }
- }
- else
- {
- *q = t->link[a[k - 1]];
- pa[k - 1]->tag[a[k - 1]] = MINUS;
- }
- }
- else
- {
- /* D6. */
- avlt_node *r = t->link[1];
- if (r->tag[0] == MINUS)
- {
- r->link[0] = t->link[0];
- r->tag[0] = t->tag[0];
- r->bal = t->bal;
- if (r->tag[0] == PLUS)
- {
- avlt_node *s = r->link[0];
- while (s->tag[1] == PLUS)
- s = s->link[1];
- assert (s->tag[1] == MINUS);
- s->link[1] = r;
- }
- *q = r;
- a[k] = 1;
- pa[k++] = r;
- }
- else
- {
- /* D7. */
- avlt_node *s = r->link[0];
-
- a[k] = 1;
- pa[k++] = t;
-
- a[k] = 0;
- pa[k++] = r;
-
- /* D8. */
- while (s->tag[0] != MINUS)
- {
- r = s;
- s = r->link[0];
- a[k] = 0;
- pa[k++] = r;
- }
-
- /* D9. */
- t->data = s->data;
- if (s->tag[1] == MINUS)
- {
- r->tag[0] = MINUS;
- r->link[0] = t;
- }
- else
- {
- r->link[0] = s->link[1];
- if (s->link[1]->tag[0] == MINUS)
- s->link[1]->link[0] = t;
- }
- p = s;
- }
- }
- }
-
- free (p);
-
- assert (k > 0);
- /* D10. */
- while (--k)
- {
- avlt_node *const s = pa[k];
-
- if (a[k] == 0)
- {
- avlt_node *const r = s->link[1];
-
- /* D10. */
- if (s->bal == -1)
- {
- s->bal = 0;
- continue;
- }
- else if (s->bal == 0)
- {
- s->bal = +1;
- break;
- }
-
- assert (s->bal == +1);
- if (s->tag[1] == MINUS || r->bal == 0)
- {
- /* D11. */
- s->link[1] = r->link[0];
- r->link[0] = s;
- r->bal = -1;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- break;
- }
- else if (r->bal == +1)
- {
- /* D12. */
- if (PLUS == (s->tag[1] = r->tag[0]))
- s->link[1] = r->link[0];
- r->link[0] = s;
- r->tag[0] = PLUS;
- s->bal = r->bal = 0;
- pa[k - 1]->link[a[k - 1]] = r;
- }
- else
- {
- /* D13. */
- assert (r->bal == -1);
- p = r->link[0];
- if (PLUS == (r->tag[0] = p->tag[1]))
- r->link[0] = p->link[1];
- p->link[1] = r;
- p->tag[1] = PLUS;
- if (MINUS == (s->tag[1] = p->tag[0]))
- s->link[1] = p;
- else
- s->link[1] = p->link[0];
- p->link[0] = s;
- p->tag[0] = PLUS;
- if (p->bal == +1)
- s->bal = -1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == -1);
- s->bal = 0, r->bal = +1;
- }
- p->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = p;
- pa[k - 1]->tag[(int) a[k - 1]] = PLUS;
- }
- }
- else
- {
- avlt_node *const r = s->link[0];
-
- /* D10. */
- if (s->bal == +1)
- {
- s->bal = 0;
- continue;
- }
- else if (s->bal == 0)
- {
- s->bal = -1;
- break;
- }
-
- assert (s->bal == -1);
- if (s->tag[0] == MINUS || r->bal == 0)
- {
- /* D11. */
- s->link[0] = r->link[1];
- r->link[1] = s;
- r->bal = +1;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- break;
- }
- else if (r->bal == -1)
- {
- /* D12. */
- if (PLUS == (s->tag[0] = r->tag[1]))
- s->link[0] = r->link[1];
- r->link[1] = s;
- r->tag[1] = PLUS;
- s->bal = r->bal = 0;
- pa[k - 1]->link[a[k - 1]] = r;
- }
- else
- {
- /* D13. */
- assert (r->bal == +1);
- p = r->link[1];
- if (PLUS == (r->tag[1] = p->tag[0]))
- r->link[1] = p->link[0];
- p->link[0] = r;
- p->tag[0] = PLUS;
- if (MINUS == (s->tag[0] = p->tag[1]))
- s->link[0] = p;
- else
- s->link[0] = p->link[1];
- p->link[1] = s;
- p->tag[1] = PLUS;
- if (p->bal == -1)
- s->bal = +1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == +1);
- s->bal = 0, r->bal = -1;
- }
- p->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = p;
- pa[k - 1]->tag[(int) a[k - 1]] = PLUS;
- }
- }
- }
-
- return (void *) item;
-}
-
-/* Inserts ITEM into TREE. Returns NULL if the item was inserted,
- otherwise a pointer to the duplicate item. */
-void *
-avlt_insert (avlt_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = avlt_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-/* If ITEM does not exist in TREE, inserts it and returns NULL. If a
- matching item does exist, it is replaced by ITEM and the item
- replaced is returned. The caller is responsible for freeing the
- item returned. */
-void *
-avlt_replace (avlt_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = avlt_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-
-/* Delete ITEM from TREE when you know that ITEM must be in TREE. For
- debugging purposes. */
-void *
-(avlt_force_delete) (avlt_tree *tree, void *item)
-{
- void *found = avlt_delete (tree, item);
- assert (found != NULL);
- return found;
-}
-
-#if SELF_TEST
-
-/* Size of the tree used for testing. */
-#define TREE_SIZE 1024
-
-/* Used to flag delayed aborting. */
-int done = 0;
-
-/* Count the number of nodes in TREE below and including NODE. */
-int
-count (avlt_tree *tree, avlt_node *node)
-{
- int n = 1;
- if (node->tag[0] == PLUS)
- n += count (tree, node->link[0]);
- if (node->tag[1] == PLUS)
- n += count (tree, node->link[1]);
- return n;
-}
-
-/* Print the structure of node NODE of an avl tree, which is LEVEL
- levels from the top of the tree. Uses different delimiters to
- visually distinguish levels. */
-void
-print_structure (avlt_tree *tree, avlt_node *node, int level)
-{
- char lc[] = "([{<`";
- char rc[] = ")]}>'";
-
- assert (node != NULL);
- if (level >= 10)
- {
- printf ("Too deep, giving up.\n");
- done = 1;
- return;
- }
- if (node == &tree->root)
- {
- printf (" root");
- return;
- }
- printf (" %c%d", lc[level % 5], (int) node->data);
- fflush (stdout);
-
- {
- int i;
-
- for (i = 0; i <= 1; i++)
- {
- if (node->tag[i] == PLUS)
- print_structure (tree, node->link[i], level + 1);
- else if (node->link[i] != &tree->root)
- printf (" :%d", (int) node->link[i]->data);
- else
- printf (" :r");
- fflush (stdout);
- }
- }
- printf ("%c", rc[level % 5]);
- fflush (stdout);
-}
-
-/* Compare two integers A and B and return a strcmp()-type result. */
-int
-compare_ints (const void *a, const void *b, void *param unused)
-{
- return ((int) a) - ((int) b);
-}
-
-/* Print the value of integer A. */
-void
-print_int (void *a, void *param unused)
-{
- printf (" %d", (int) a);
-}
-
-/* Linearly print contents of TREE. */
-void
-print_contents (avlt_tree *tree)
-{
- avlt_walk (tree, print_int, NULL);
- printf ("\n");
-}
-
-/* Examine NODE in a avl tree. *COUNT is increased by the number of
- nodes in the tree, including the current one. If the node is the
- root of the tree, PARENT should be INT_MIN, otherwise it should be
- the parent node value. DIR is the direction that the current node
- is linked from the parent: -1 for left child, +1 for right child;
- it is not used if PARENT is INT_MIN. Returns the height of the
- tree rooted at NODE. */
-int
-recurse_tree (avlt_tree *tree, avlt_node *node, int *count, int parent,
- int dir, unsigned char *nodes, unsigned char *threads)
-{
- if (node != &tree->root)
- {
- int d = (int) node->data;
- int nl = 0;
- int nr = 0;
-
- (*count)++;
-
- assert (d >= 0 && d < TREE_SIZE);
- if (nodes[d / 8] & (1 << (d % 8)))
- {
- printf (" Arrived at node %d by two different paths.\n", d);
- done = 1;
- }
- else
- nodes[d / 8] |= 1 << (d % 8);
-
- if (node->tag[0] == PLUS)
- nl = recurse_tree (tree, node->link[0], count, d, -1, nodes, threads);
- else if (node->link[0] != &tree->root)
- {
- int dl = (int) node->link[0]->data;
- assert (dl >= 0 && dl < TREE_SIZE);
- threads[dl / 8] |= 1 << (dl % 8);
- }
-
- if (node->tag[1] == PLUS)
- nr = recurse_tree (tree, node->link[1], count, d, 1, nodes, threads);
- else if (node->link[1] != &tree->root)
- {
- int dr = (int) node->link[1]->data;
- assert (dr >= 0 && dr < TREE_SIZE);
- threads[dr / 8] |= 1 << (dr % 8);
- }
-
- if (nr - nl != node->bal)
- {
- printf (" Node %d has incorrect balance: right height=%d, "
- "left height=%d, difference=%d, but balance factor=%d.\n",
- d, nr, nl, nr - nl, node->bal);
- done = 1;
- }
-
- if (node->bal < -1 || node->bal > 1)
- {
- printf (" Node %d has invalid balance factor %d.\n",
- d, node->bal);
- done = 1;
- }
-
- if (parent != INT_MIN)
- {
- assert (dir == -1 || dir == +1);
- if (dir == -1 && d > parent)
- {
- printf (" Node %d is smaller than its left child %d.\n",
- parent, d);
- done = 1;
- }
- else if (dir == +1 && d < parent)
- {
- printf (" Node %d is larger than its right child %d.\n",
- parent, d);
- done = 1;
- }
- }
- assert (node->bal >= -1 && node->bal <= 1);
- return 1 + (nl > nr ? nl : nr);
- }
- else return 0;
-}
-
-/* Check that everything about TREE is kosher. */
-void
-verify_tree (avlt_tree *tree)
-{
- {
- unsigned char nodes[(TREE_SIZE + 7) / 8];
- unsigned char threads[(TREE_SIZE + 7) / 8];
-
- int count = 0;
- int i;
-
- memset (nodes, 0, (TREE_SIZE + 7) / 8);
- memset (threads, 0, (TREE_SIZE + 7) / 8);
-
- recurse_tree (tree, tree->root.link[0], &count, INT_MIN, 0, nodes,
- threads);
-
- if (count != tree->count)
- {
- printf (" Tree should have %d nodes, but tree count by recursive "
- "descent is %d.\n", tree->count, count);
- done = 1;
- }
-
- for (i = 0; i < TREE_SIZE; i++)
- {
- int thread = threads[i / 8] & (1 << (i % 8));
- int node = nodes[i / 8] & (1 << (i % 8));
-
- if (thread && !node)
- {
- printf (" A thread leads to ``node'' %d, which is "
- "not in the tree.", i);
- done = 1;
- }
- }
- }
-
- /* Check right threads. */
- {
- int count = 0;
- int last = INT_MIN;
- void **data = NULL;
-
- while (NULL != (data = avlt_next (tree, data)))
- {
- if (((int) *data) < last)
- {
- printf (" Misordered right threads.\n");
- abort ();
- }
- else if (((int) *data) == last)
- {
- printf (" Loop in right threads detected on %d.\n", last);
- abort ();
- }
- last = (int) *data;
- count++;
- }
- if (count != tree->count)
- {
- printf (" Tree should have %d nodes, but tree count by right threads "
- "is %d.\n", tree->count, count);
- done = 1;
- }
- }
-
- /* Check left threads. */
- {
- int count = 0;
- int last = INT_MAX;
- void **data = NULL;
-
- while (NULL != (data = avlt_prev (tree, data)))
- {
- if (((int) *data) > last)
- {
- printf (" Misordered left threads.\n");
- abort ();
- }
- else if (((int) *data) == last)
- {
- printf (" Loop in left threads detected on %d.\n", last);
- abort ();
- }
- last = (int) *data;
- count++;
- }
- if (count != tree->count)
- {
- printf (" Tree should have %d nodes, but tree count by left threads "
- "is %d.\n", tree->count, count);
- done = 1;
- }
- }
-
- if (done)
- abort ();
-}
-
-/* Arrange the N elements of ARRAY in random order. */
-void
-shuffle (int *array, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j = i + rand () % (n - i);
- int t = array[j];
- array[j] = array[i];
- array[i] = t;
- }
-}
-
-/* Compares avl trees rooted at A and B, making sure that they are
- identical. */
-void
-compare_trees (avlt_node *a, avlt_node *b)
-{
- int diff = 0;
-
- assert (a && b);
-
- /* Separating these conditions makes it easier to pinpoint bad data
- under a memory debugger like Checker because each test is a
- separate statement. */
- diff |= a->data != b->data;
- diff |= a->bal != b->bal;
- diff |= ((a->tag[0] == PLUS) ^ (b->tag[0] == PLUS));
- diff |= ((a->tag[1] == PLUS) ^ (b->tag[1] == PLUS));
- if (diff)
- {
- printf (" Copied nodes differ: %d b=%d a->bal=%d b->bal=%d a:",
- (int) a->data, (int) b->data, a->bal, b->bal);
- if (a->link[0])
- printf ("l");
- if (a->link[1])
- printf ("r");
- printf (" b:");
- if (b->link[0])
- printf ("l");
- if (b->link[1])
- printf ("r");
- printf ("\n");
- abort ();
- }
- if (a->tag[0] == PLUS)
- compare_trees (a->link[0], b->link[0]);
- if (a->tag[1] == PLUS)
- compare_trees (a->link[1], b->link[1]);
-}
-
-/* Simple stress test procedure for the AVL tree routines. Does the
- following:
-
- * Generate a random number seed. By default this is generated from
- the current time. You can also pass a seed value on the command
- line if you want to test the same case. The seed value is
- displayed.
-
- * Create a tree and insert the integers from 0 up to TREE_SIZE - 1
- into it, in random order. Verify the tree structure after each
- insertion.
-
- * Remove each integer from the tree, in a different random order.
- After each deletion, verify the tree structure; also, make a copy
- of the tree into a new tree, verify the copy and compare it to the
- original, then destroy the copy.
-
- * Destroy the tree, increment the random seed value, and start over.
-
- If you make any modifications to the avl tree routines, then you
- might want to insert some calls to print_structure() at strategic
- places in order to be able to see what's really going on. Also,
- memory debuggers like Checker or Purify are very handy. */
-#define N_ITERATIONS 16
-int
-main (int argc, char **argv)
-{
- int array[TREE_SIZE];
- int seed;
- int iteration;
-
- if (argc == 2)
- seed = atoi (argv[1]);
- else
- seed = time (0) * 257 % 32768;
-
- fputs ("Testing avlt...\n", stdout);
-
- for (iteration = 1; iteration <= N_ITERATIONS; iteration++)
- {
- avlt_tree *tree;
- int i;
-
- printf ("Iteration %4d/%4d: seed=%5d", iteration, N_ITERATIONS, seed);
- fflush (stdout);
-
- srand (seed++);
-
- for (i = 0; i < TREE_SIZE; i++)
- array[i] = i;
- shuffle (array, TREE_SIZE);
-
- tree = avlt_create (compare_ints, NULL);
- for (i = 0; i < TREE_SIZE; i++)
- avlt_force_insert (tree, (void *) (array[i]));
- verify_tree (tree);
-
- shuffle (array, TREE_SIZE);
- for (i = 0; i < TREE_SIZE; i++)
- {
- avlt_tree *copy;
-
- avlt_delete (tree, (void *) (array[i]));
- verify_tree (tree);
-
- copy = avlt_copy (tree, NULL);
- verify_tree (copy);
- if (tree->root.link[0] != &tree->root)
- compare_trees (tree->root.link[0], copy->root.link[0]);
- else if (copy->root.link[1] != ©->root)
- printf (" Empty tree results in nonempty copy.\n"), abort ();
- avlt_destroy (copy, NULL);
-
- if (i % 128 == 0)
- {
- putchar ('.');
- fflush (stdout);
- }
- }
- fputs (" good.\n", stdout);
-
- avlt_destroy (tree, NULL);
- }
-
- return 0;
-}
-#endif /* SELF_TEST */
-
-/*
- Local variables:
- compile-command: "gcc -DSELF_TEST=1 -W -Wall -I. -o ./avlt-test avlt.c"
- End:
-*/
-
diff --git a/avl-1.4.0/avlt.h b/avl-1.4.0/avlt.h
deleted file mode 100644
index 94272b4..0000000
--- a/avl-1.4.0/avlt.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file avlt.h in libavl. */
-
-#if !avlt_h
-#define avlt_h 1
-
-/* The default maximum height of 32 allows for AVL trees having
- between 5,704,880 and 4,294,967,295 nodes, depending on order of
- insertion. You may change this compile-time constant as you
- wish. */
-#ifndef AVL_MAX_HEIGHT
-#define AVL_MAX_HEIGHT 32
-#endif
-
-/* Structure for a node in a threaded AVL tree. */
-typedef struct avlt_node
- {
- void *data; /* Pointer to data. */
- struct avlt_node *link[2]; /* Subtrees or threads. */
- signed char bal; /* Balance factor. */
- char cache; /* Used during insertion. */
- signed char tag[2]; /* Left and right thread tags. */
- }
-avlt_node;
-
-/* Used for traversing a threaded AVL tree. */
-typedef struct avlt_traverser
- {
- int init; /* Initialized? */
- const avlt_node *p; /* Last node returned. */
- }
-avlt_traverser;
-
-/* Initializer for avlt_traverser. */
-#define AVLT_TRAVERSER_INIT {0}
-
-/* Function types. */
-#if !AVL_FUNC_TYPES
-#define AVL_FUNC_TYPES 1
-typedef int (*avl_comparison_func) (const void *a, const void *b, void *param);
-typedef void (*avl_node_func) (void *data, void *param);
-typedef void *(*avl_copy_func) (void *data, void *param);
-#endif
-
-/* Structure which holds information about a threaded AVL tree. */
-typedef struct avlt_tree
- {
- avlt_node root; /* Tree root node. */
- avl_comparison_func cmp; /* Used to compare keys. */
- int count; /* Number of nodes in the tree. */
- void *param; /* Arbitary user data. */
- }
-avlt_tree;
-
-/* General functions. */
-avlt_tree *avlt_create (avl_comparison_func, void *param);
-void avlt_destroy (avlt_tree *, avl_node_func);
-void avlt_free (avlt_tree *);
-int avlt_count (const avlt_tree *);
-avlt_tree *avlt_copy (const avlt_tree *, avl_copy_func);
-struct avl_tree;
-avlt_tree *avlt_thread (struct avl_tree *);
-struct avl_tree *avlt_unthread (avlt_tree *);
-
-/* Walk the tree. */
-void avlt_walk (const avlt_tree *, avl_node_func, void *param);
-void *avlt_traverse (const avlt_tree *, avlt_traverser *);
-#define avlt_init_traverser(TRAVERSER) ((TRAVERSER)->init = 0)
-void **avlt_next (const avlt_tree *tree, void **item);
-void **avlt_prev (const avlt_tree *tree, void **item);
-
-/* Search for a given item. */
-void **avlt_probe (avlt_tree *, void *);
-void *avlt_delete (avlt_tree *, const void *);
-void **avlt_find (const avlt_tree *, const void *);
-void **avlt_find_close (const avlt_tree *, const void *);
-
-#if __GCC__ >= 2
-extern inline void *
-avlt_insert (avlt_tree *tree, void *item)
-{
- void **p = avlt_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-extern inline void *
-avlt_replace (avlt_tree *tree, void *item)
-{
- void **p = avlt_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-#else /* not gcc */
-void *avlt_insert (avlt_tree *tree, void *item);
-void *avlt_replace (avlt_tree *tree, void *item);
-#endif /* not gcc */
-
-/* Easy assertions on insertion & deletion. */
-#ifndef NDEBUG
-#define avlt_force_insert(A, B) \
- do \
- { \
- void *r = avlt_insert (A, B); \
- assert (r == NULL); \
- } \
- while (0)
-void *avlt_force_delete (avlt_tree *, void *);
-#else
-#define avlt_force_insert(A, B) \
- avlt_insert (A, B)
-#define avlt_force_delete(A, B) \
- avlt_delete (A, B)
-#endif
-
-#endif /* avlt_h */
diff --git a/avl-1.4.0/avltr.c b/avl-1.4.0/avltr.c
deleted file mode 100644
index 2831bee..0000000
--- a/avl-1.4.0/avltr.c
+++ /dev/null
@@ -1,1538 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file avltr.c in libavl. */
-
-#if HAVE_CONFIG_H
-#include
-#endif
-#if SELF_TEST
-#include
-#include
-#endif
-#include
-#include
-#include
-#include
-#include "avltr.h"
-
-/* Tag types. */
-#define PLUS +1
-#define MINUS -1
-
-#if !__GCC__ && !defined (inline)
-#define inline
-#endif
-
-void
-print_structure (avltr_tree *tree, avltr_node *node, int level);
-
-#if __GNUC__ >= 2
-#define unused __attribute__ ((unused))
-#else
-#define unused
-#endif
-
-#ifdef HAVE_XMALLOC
-void *xmalloc (size_t);
-#else /* !HAVE_XMALLOC */
-/* Allocates SIZE bytes of space using malloc(). Aborts if out of
- memory. */
-static void *
-xmalloc (size_t size)
-{
- void *vp;
- if (size == 0)
- return NULL;
- vp = malloc (size);
- assert (vp != NULL);
- if (vp == NULL)
- {
- fprintf (stderr, "virtual memory exhausted\n");
- exit (EXIT_FAILURE);
- }
- return vp;
-}
-#endif /* !HAVE_XMALLOC */
-
-/* Creates an AVL tree in arena OWNER (which can be NULL). The arena
- is owned by the caller, not by the AVL tree. CMP is a order
- function for the data to be stored in the tree. PARAM is arbitrary
- data that becomes an argument to the comparison function. */
-avltr_tree *
-avltr_create (avl_comparison_func cmp, void *param)
-{
- avltr_tree *tree;
-
- assert (cmp != NULL);
- tree = xmalloc (sizeof (avltr_tree));
-
- tree->root.link[0] = NULL;
- tree->root.link[1] = &tree->root;
- tree->root.rtag = PLUS;
- tree->cmp = cmp;
- tree->count = 0;
- tree->param = param;
-
- return tree;
-}
-
-/* Destroy tree TREE. Function FREE_FUNC is called for every node in
- the tree as it is destroyed.
-
- No effect if the tree has an arena owner and free_func is NULL.
- The caller owns the arena and must destroy it itself.
-
- Do not attempt to reuse the tree after it has been freed. Create a
- new one. */
-void
-avltr_destroy (avltr_tree *tree, avl_node_func free_func)
-{
- assert (tree != NULL);
-
- if (tree->root.link[0] != &tree->root)
- {
- /* Uses Knuth's Algorithm 2.3.1T as modified in exercise 13
- (postorder traversal), further modified for right-threaded
- trees. */
-
- /* T1. */
- avltr_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- char ab[AVL_MAX_HEIGHT]; /* Stack A: bits. */
- int ap = 0; /* Stack A: height. */
- avltr_node *p = tree->root.link[0];
-
- for (;;)
- {
- /* T2. */
- while (p != NULL)
- {
- /* T3. */
- ab[ap] = 0;
- an[ap++] = p;
- p = p->link[0];
- }
-
- /* T4. */
- for (;;)
- {
- if (ap == 0)
- goto done;
-
- p = an[--ap];
- if (ab[ap] == 0)
- {
- ab[ap++] = 1;
- if (p->rtag == MINUS)
- continue;
- p = p->link[1];
- break;
- }
-
- if (free_func)
- free_func (p->data, tree->param);
- free (p);
- }
- }
- }
-
- done:
- free (tree);
-}
-
-/* avltr_destroy() with FREE_FUNC hardcoded as free(). */
-void
-avltr_free (avltr_tree *tree)
-{
- avltr_destroy (tree, (avl_node_func) free);
-}
-
-/* Return the number of nodes in TREE. */
-int
-avltr_count (const avltr_tree *tree)
-{
- assert (tree != NULL);
- return tree->count;
-}
-
-/* Copy the contents of TREE to a new tree in arena OWNER. If COPY is
- non-NULL, then each data item is passed to function COPY, and the
- return values are inserted into the new tree; otherwise, the items
- are copied verbatim from the old tree to the new tree. Returns the
- new tree. */
-avltr_tree *
-avltr_copy (const avltr_tree *tree, avl_copy_func copy)
-{
- /* Knuth's Algorithm 2.3.1C (copying a binary tree). Additionally
- uses Algorithm 2.3.1I (insertion into a threaded binary tree) and
- Algorithm 2.3.1 exercise 17 (preorder successor in threaded
- binary tree). */
-
- avltr_tree *new_tree;
-
- const avltr_node *p;
- avltr_node *q;
-
- assert (tree != NULL);
- new_tree = avltr_create (tree->cmp, tree->param);
- new_tree->count = tree->count;
- p = &tree->root;
- if (p->link[0] == p)
- return new_tree;
- q = &new_tree->root;
-
- for (;;)
- {
- /* C4. This is Algorithm 2.3.1 exercise 23 for insertion to the
- left in a right-threaded binary tree. */
- if (p->link[0] != NULL)
- {
- avltr_node *r = xmalloc (sizeof (avltr_node));
-
- q->link[0] = r;
- r->link[0] = NULL;
- r->link[1] = q;
- r->rtag = MINUS;
- }
-
- /* C5: Find preorder successors of P and Q. This is Algorithm
- 2.3.1 exercise 17 but applies its actions to Q as well as
- P. */
- if (p->link[0] != NULL)
- {
- p = p->link[0];
- q = q->link[0];
- }
- else
- {
- while (p->rtag == MINUS)
- {
- p = p->link[1];
- q = q->link[1];
- }
- p = p->link[1];
- q = q->link[1];
- }
-
- /* C6. */
- if (p == &tree->root)
- {
- assert (q == &new_tree->root);
- return new_tree;
- }
-
- /* C2. This is Algorithm 2.3.1 exercise 23 for insertion to the
- right in a right-threaded binary tree. */
- if (p->rtag == PLUS)
- {
- avltr_node *r = xmalloc (sizeof (avltr_node));
-
- r->link[1] = q->link[1];
- r->rtag = q->rtag;
- q->link[1] = r;
- q->rtag = PLUS;
- r->link[0] = NULL;
- }
-
- /* C3. */
- q->bal = p->bal;
- if (copy == NULL)
- q->data = p->data;
- else
- q->data = copy (p->data, tree->param);
- }
-}
-
-/* Threads the unthreaded AVL tree TREE in-place, and returns TREE cast to
- avltr_tree *. */
-avltr_tree *
-avltr_thread (struct avl_tree *_tree)
-{
- /* Uses Knuth's Algorithm 2.3.1 exercise 30 (thread an unthreaded
- tree, with Algorithm 2.3.1T (inorder traversal) for computing
- Q$. */
-
- avltr_tree *tree = (avltr_tree *) _tree;
-
- /* Algorithm T's variables. */
- avltr_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- avltr_node **ap; /* Stack A: stack pointer. */
- avltr_node *tp; /* P. */
-
- /* Algorithm L's variables. */
- avltr_node *p, *q;
-
- assert (tree != NULL);
-
- /* T1. */
- ap = an;
- tp = tree->root.link[0];
-
- /* L1. */
- q = &tree->root;
- q->link[1] = q;
-
- for (;;)
- {
- /* L2. */
- {
- /* T2. */
- while (tp != NULL)
- {
- /* T3. */
- *ap++ = tp;
- tp = tp->link[0];
- }
-
- /* T4. Modified to visit HEAD after fully traversing the
- tree. */
- if (ap == an)
- tp = &tree->root;
- else
- tp = *--ap;
-
- /* T5: Visit P. */
- p = tp;
- }
-
- /* L3. */
- if (q->link[1] == NULL)
- {
- q->link[1] = p;
- q->rtag = MINUS;
- }
- else
- q->rtag = PLUS;
-
- /* L4. */
- if (p == &tree->root)
- return tree;
- q = p;
-
- /* T5: Next. */
- tp = tp->link[1];
- }
-}
-
-/* Unthreads the threaded tree TREE in-place, and returns TREE cast to
- avl_tree *. */
-struct avl_tree *
-avltr_unthread (avltr_tree *tree)
-{
- /* Uses Knuth's Algorithm 2.3.1T as modified in exercise 13
- (postorder traversal). */
-
- /* T1. */
- avltr_node *an[AVL_MAX_HEIGHT]; /* Stack A: nodes. */
- char ab[AVL_MAX_HEIGHT]; /* Stack A: bits. */
- int ap = 0; /* Stack A: height. */
- avltr_node *p;
-
- assert (tree != NULL);
- p = tree->root.link[0];
- if (p != NULL)
- for (;;)
- {
- /* T2. */
- for (;;)
- {
- /* T3. */
- ab[ap] = 0;
- an[ap++] = p;
- if (p->link[0] == NULL)
- break;
- p = p->link[0];
- }
-
- /* T4. */
- for (;;)
- {
- if (ap == 0)
- goto done;
-
- p = an[--ap];
- if (ab[ap] == 0)
- {
- ab[ap++] = 1;
- if (p->rtag == MINUS)
- continue;
- p = p->link[1];
- break;
- }
-
- if (p->rtag == MINUS)
- p->link[1] = NULL;
- }
- }
- else
- tree->root.link[0] = NULL;
-
- done:
- tree->root.link[1] = NULL;
- return (struct avl_tree *) tree;
-}
-
-/* Walk tree TREE in inorder, calling WALK_FUNC at each node. Passes
- PARAM to WALK_FUNC. */
-void
-avltr_walk (const avltr_tree *tree, avl_node_func walk_func, void *param)
-{
- const avltr_node *p = &tree->root;
-
- /* Uses Knuth's algorithm 2.3.1D (threaded inorder successor). */
- assert (tree && walk_func);
-
- for (;;)
- {
- if (p->rtag == MINUS)
- p = p->link[1];
- else
- {
- p = p->link[1];
- while (p->link[0] != NULL)
- p = p->link[0];
- }
-
- if (p == &tree->root)
- return;
-
- walk_func (p->data, param);
- }
-}
-
-/* Each call to this function for a given TREE and TRAV return the
- next item in the tree in inorder. Initialize the first element of
- TRAV (init) to 0 before calling the first time. Returns NULL when
- out of elements. */
-void *
-avltr_traverse (const avltr_tree *tree, avltr_traverser *trav)
-{
- const avltr_node *p;
-
- assert (tree && trav);
-
- if (trav->init == 0)
- {
- p = &tree->root;
- trav->init = 1;
- }
- else
- p = trav->p;
-
- /* Knuth's Algorithm 2.3.1S (threaded inorder successor). */
- if (p->rtag == MINUS)
- p = p->link[1];
- else
- {
- p = p->link[1];
- while (p->link[0] != NULL)
- p = p->link[0];
- }
-
- if (p == &tree->root)
- {
- trav->init = 0;
- return NULL;
- }
- else
- {
- trav->p = p;
- return (void *) p->data;
- }
-}
-
-/* Given ITEM, a pointer to a data item in TREE (or NULL), returns a
- pointer to the next item in the tree in comparison order, or NULL
- if ITEM is the last item. */
-void **
-avltr_next (const avltr_tree *tree, void **item)
-{
- const avltr_node *p;
-
- assert (tree != NULL);
- if (item == NULL)
- p = &tree->root;
- else
- p = (avltr_node *) (((char *) item) - offsetof (avltr_node, data));
-
- /* Knuth's Algorithm 2.3.1S (threaded inorder successor). */
- if (p->rtag == MINUS)
- p = p->link[1];
- else
- {
- p = p->link[1];
- while (p->link[0] != NULL)
- p = p->link[0];
- }
-
- if (p == &tree->root)
- return NULL;
-
- return (void **) &p->data;
-}
-
-/* Search TREE for an item matching ITEM. If found, returns a pointer
- to the address of the item. If none is found, ITEM is inserted
- into the tree, and a pointer to the address of ITEM is returned.
- In either case, the pointer returned can be changed by the caller,
- or the returned data item can be directly edited, but the key data
- in the item must not be changed. */
-void **
-avltr_probe (avltr_tree *tree, void *item)
-{
- /* Uses Knuth's Algorithm 6.2.3A (balanced tree search and
- insertion), modified for a right-threaded binary tree. Caches
- results of comparisons. In empirical tests this eliminates about
- 25% of the comparisons seen under random insertions. */
-
- /* A1. */
- avltr_node *t;
- avltr_node *s, *p, *q, *r;
-
- assert (tree != NULL);
- t = &tree->root;
- s = p = t->link[0];
-
- if (s == NULL)
- {
- tree->count++;
- assert (tree->count == 1);
- q = t->link[0] = xmalloc (sizeof (avltr_node));
- q->data = item;
- q->link[0] = NULL;
- q->link[1] = t;
- q->rtag = MINUS;
- q->bal = 0;
- return &q->data;
- }
-
- for (;;)
- {
- /* A2. */
- int diff = tree->cmp (item, p->data, tree->param);
-
- /* A3. */
- if (diff < 0)
- {
- p->cache = 0;
- q = p->link[0];
- if (q == NULL)
- {
- /* Algorithm 2.3.1 exercise 23 for insertion to the left
- in a right-threaded binary tree. */
- q = xmalloc (sizeof (avltr_node));
- p->link[0] = q;
- q->link[0] = NULL;
- q->link[1] = p;
- q->rtag = MINUS;
- break;
- }
- }
- /* A4. */
- else if (diff > 0)
- {
- p->cache = 1;
- q = p->link[1];
- if (p->rtag == MINUS)
- {
- /* Algorithm 2.3.1 exercise 23 for insertion to the right
- in a right-threaded binary tree. */
- q = xmalloc (sizeof (avltr_node));
- q->link[1] = p->link[1];
- q->rtag = p->rtag;
- p->link[1] = q;
- p->rtag = PLUS;
- q->link[0] = NULL;
- break;
- }
- assert (q != NULL);
- }
- else
- /* A2. */
- return &p->data;
-
- /* A3, A4. */
- if (q->bal != 0)
- t = p, s = q;
- p = q;
- }
-
- /* A5. */
- tree->count++;
- q->data = item;
- q->bal = 0;
-
- /* A6. */
- r = p = s->link[(int) s->cache];
- while (p != q)
- {
- p->bal = p->cache * 2 - 1;
- p = p->link[(int) p->cache];
- }
-
- /* A7. */
- if (s->cache == 0)
- {
- /* a = -1. */
- if (s->bal == 0)
- {
- s->bal = -1;
- return &q->data;
- }
- else if (s->bal == +1)
- {
- s->bal = 0;
- return &q->data;
- }
-
- assert (s->bal == -1);
- if (r->bal == -1)
- {
- /* A8. */
- p = r;
- if (r->rtag == MINUS)
- {
- s->link[0] = NULL;
- r->link[1] = s;
- r->rtag = PLUS;
- }
- else
- {
- s->link[0] = r->link[1];
- r->link[1] = s;
- }
- s->bal = r->bal = 0;
- }
- else
- {
- /* A9. */
- assert (r->bal == +1);
- p = r->link[1];
- r->link[1] = p->link[0];
- p->link[0] = r;
- s->link[0] = p->link[1];
- p->link[1] = s;
- if (p->bal == -1)
- s->bal = 1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == +1);
- s->bal = 0, r->bal = -1;
- }
- p->bal = 0;
- p->rtag = PLUS;
- if (s->link[0] == s)
- s->link[0] = NULL;
- if (r->link[1] == NULL)
- {
- r->link[1] = p;
- r->rtag = MINUS;
- }
- }
- }
- else
- {
- /* a == +1. */
- if (s->bal == 0)
- {
- s->bal = 1;
- return &q->data;
- }
- else if (s->bal == -1)
- {
- s->bal = 0;
- return &q->data;
- }
-
- assert (s->bal == +1);
- if (r->bal == +1)
- {
- /* A8. */
- p = r;
- if (r->link[0] == NULL)
- {
- s->rtag = MINUS;
- r->link[0] = s;
- }
- else
- {
- s->link[1] = r->link[0];
- s->rtag = PLUS;
- r->link[0] = s;
- }
- s->bal = r->bal = 0;
- }
- else
- {
- /* A9. */
- assert (r->bal == -1);
- p = r->link[0];
- r->link[0] = p->link[1];
- p->link[1] = r;
- s->link[1] = p->link[0];
- p->link[0] = s;
- if (p->bal == +1)
- s->bal = -1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == -1);
- s->bal = 0, r->bal = 1;
- }
- p->rtag = PLUS;
- if (s->link[1] == NULL)
- {
- s->link[1] = p;
- s->rtag = MINUS;
- }
- if (r->link[0] == r)
- r->link[0] = NULL;
- p->bal = 0;
- }
- }
-
- /* A10. */
- if (t != &tree->root && s == t->link[1])
- t->link[1] = p;
- else
- t->link[0] = p;
-
- return &q->data;
-}
-
-/* Search TREE for an item matching ITEM, and return a pointer to it
- if found. */
-void **
-avltr_find (const avltr_tree *tree, const void *item)
-{
- const avltr_node *p;
-
- assert (tree != NULL);
- p = tree->root.link[0];
- if (p == NULL)
- return NULL;
- for (;;)
- {
- int diff = tree->cmp (item, p->data, tree->param);
-
- /* A3. */
- if (diff < 0)
- {
- p = p->link[0];
- if (p == NULL)
- return NULL;
- }
- else if (diff > 0)
- {
- if (p->rtag == MINUS)
- return NULL;
- p = p->link[1];
- }
- else
- return (void **) &p->data;
- }
-}
-
-/* Search TREE for an item close to the value of ITEM, and return it.
- This function will return a null pointer only if TREE is empty. */
-void **
-avltr_find_close (const avltr_tree *tree, const void *item)
-{
- const avltr_node *p;
-
- assert (tree != NULL);
- p = tree->root.link[0];
- if (p == NULL)
- return NULL;
- for (;;)
- {
- int diff = tree->cmp (item, p->data, tree->param);
-
- /* A3. */
- if (diff < 0)
- {
- if (p->link[0])
- p = p->link[0];
- else
- return (void **) &p->data;
- }
- else if (diff > 0)
- {
- if (p->rtag == MINUS)
- return (void **) &p->data;
- p = p->link[1];
- }
- else
- return (void **) &p->data;
- }
-}
-
-/* Searches AVL tree TREE for an item matching ITEM. If found, the
- item is removed from the tree and the actual item found is returned
- to the caller. If no item matching ITEM exists in the tree,
- returns NULL. */
-void *
-avltr_delete (avltr_tree *tree, const void *item)
-{
- /* Uses my Algorithm DTR, which can be found at
- http://www.msu.edu/user/pfaffben/avl. Algorithm DT is based on
- Knuth's Algorithms 6.2.2D (Tree deletion), 6.2.3A (Balanced tree
- search and insertion), 2.3.1I (Insertion into a threaded binary
- trees), and the notes on pages 465-466 of Vol. 3. */
-
- /* D1. */
- avltr_node *pa[AVL_MAX_HEIGHT]; /* Stack P: Nodes. */
- unsigned char a[AVL_MAX_HEIGHT]; /* Stack P: Bits. */
- int k = 1; /* Stack P: Pointer. */
-
- avltr_node *p;
-
- assert (tree != NULL);
-
- a[0] = 0;
- pa[0] = &tree->root;
- p = tree->root.link[0];
- if (p == NULL)
- return NULL;
- for (;;)
- {
- /* D2. */
- int diff = tree->cmp (item, p->data, tree->param);
-
- if (diff == 0)
- break;
-
- /* D3, D4. */
- pa[k] = p;
- if (diff < 0)
- {
- if (p->link[0] != NULL)
- {
- p = p->link[0];
- a[k] = 0;
- }
- else
- return NULL;
- }
- else if (diff > 0)
- {
- if (p->rtag == PLUS)
- {
- p = p->link[1];
- a[k] = 1;
- }
- else
- return NULL;
- }
-
- k++;
- }
- tree->count--;
-
- item = p->data;
-
- {
- avltr_node *t = p;
- avltr_node **q = &pa[k - 1]->link[(int) a[k - 1]];
-
- /* D5. */
- if (t->rtag == MINUS)
- {
- if (t->link[0] != NULL)
- {
- avltr_node *const x = t->link[0];
-
- *q = x;
- (*q)->bal = 0;
- if (x->rtag == MINUS)
- {
- if (a[k - 1] == 1)
- x->link[1] = t->link[1];
- else
- x->link[1] = pa[k - 1];
- }
- }
- else
- {
- *q = t->link[a[k - 1]];
- if (a[k - 1] == 0)
- pa[k - 1]->link[0] = NULL;
- else
- pa[k - 1]->rtag = MINUS;
- }
- }
- else
- {
- /* D6. */
- avltr_node *r = t->link[1];
- if (r->link[0] == NULL)
- {
- r->link[0] = t->link[0];
- r->bal = t->bal;
- if (r->link[0] != NULL)
- {
- avltr_node *s = r->link[0];
- while (s->rtag == PLUS)
- s = s->link[1];
- assert (s->rtag == MINUS);
- s->link[1] = r;
- }
- *q = r;
- a[k] = 1;
- pa[k++] = r;
- }
- else
- {
- /* D7. */
- avltr_node *s = r->link[0];
-
- a[k] = 1;
- pa[k++] = t;
-
- a[k] = 0;
- pa[k++] = r;
-
- /* D8. */
- while (s->link[0] != NULL)
- {
- r = s;
- s = r->link[0];
- a[k] = 0;
- pa[k++] = r;
- }
-
- /* D9. */
- t->data = s->data;
- if (s->rtag == PLUS)
- r->link[0] = s->link[1];
- else
- r->link[0] = NULL;
- p = s;
- }
- }
- }
-
- free (p);
-
- assert (k > 0);
- /* D10. */
- while (--k)
- {
- avltr_node *const s = pa[k];
-
- if (a[k] == 0)
- {
- avltr_node *const r = s->link[1];
-
- /* D10. */
- if (s->bal == -1)
- {
- s->bal = 0;
- continue;
- }
- else if (s->bal == 0)
- {
- s->bal = +1;
- break;
- }
-
- assert (s->bal == +1);
- if (s->rtag == MINUS || r->bal == 0)
- {
- /* D11. */
- s->link[1] = r->link[0];
- r->link[0] = s;
- r->bal = -1;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- break;
- }
- else if (r->bal == +1)
- {
- /* D12. */
- if (r->link[0] != NULL)
- {
- s->rtag = PLUS;
- s->link[1] = r->link[0];
- }
- else
- s->rtag = MINUS;
- r->link[0] = s;
- s->bal = r->bal = 0;
- pa[k - 1]->link[a[k - 1]] = r;
- }
- else
- {
- /* D13. */
- assert (r->bal == -1);
- p = r->link[0];
- if (p->rtag == PLUS)
- r->link[0] = p->link[1];
- else
- r->link[0] = NULL;
- p->link[1] = r;
- p->rtag = PLUS;
- if (p->link[0] == NULL)
- {
- s->link[1] = p;
- s->rtag = MINUS;
- }
- else
- {
- s->link[1] = p->link[0];
- s->rtag = PLUS;
- }
- p->link[0] = s;
- if (p->bal == +1)
- s->bal = -1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == -1);
- s->bal = 0, r->bal = +1;
- }
- p->bal = 0;
- pa[k - 1]->link[(int) a[k - 1]] = p;
- if (a[k - 1] == 1)
- pa[k - 1]->rtag = PLUS;
- }
- }
- else
- {
- avltr_node *const r = s->link[0];
-
- /* D10. */
- if (s->bal == +1)
- {
- s->bal = 0;
- continue;
- }
- else if (s->bal == 0)
- {
- s->bal = -1;
- break;
- }
-
- assert (s->bal == -1);
- if (s->link[0] == NULL || r->bal == 0)
- {
- /* D11. */
- s->link[0] = r->link[1];
- r->link[1] = s;
- r->bal = +1;
- pa[k - 1]->link[(int) a[k - 1]] = r;
- break;
- }
- else if (r->bal == -1)
- {
- /* D12. */
- if (r->rtag == PLUS)
- s->link[0] = r->link[1];
- else
- s->link[0] = NULL;
- r->link[1] = s;
- r->rtag = PLUS;
- s->bal = r->bal = 0;
- pa[k - 1]->link[a[k - 1]] = r;
- }
- else
- {
- /* D13. */
- assert (r->bal == +1);
- p = r->link[1];
- if (p->link[0] != NULL)
- {
- r->rtag = PLUS;
- r->link[1] = p->link[0];
- }
- else
- r->rtag = MINUS;
- p->link[0] = r;
- if (p->rtag == MINUS)
- s->link[0] = NULL;
- else
- s->link[0] = p->link[1];
- p->link[1] = s;
- p->rtag = PLUS;
- if (p->bal == -1)
- s->bal = +1, r->bal = 0;
- else if (p->bal == 0)
- s->bal = r->bal = 0;
- else
- {
- assert (p->bal == +1);
- s->bal = 0, r->bal = -1;
- }
- p->bal = 0;
- if (a[k - 1] == 1)
- pa[k - 1]->rtag = PLUS;
- pa[k - 1]->link[(int) a[k - 1]] = p;
- }
- }
- }
-
- return (void *) item;
-}
-
-/* Inserts ITEM into TREE. Returns NULL if the item was inserted,
- otherwise a pointer to the duplicate item. */
-void *
-avltr_insert (avltr_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = avltr_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-/* If ITEM does not exist in TREE, inserts it and returns NULL. If a
- matching item does exist, it is replaced by ITEM and the item
- replaced is returned. The caller is responsible for freeing the
- item returned. */
-void *
-avltr_replace (avltr_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = avltr_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-
-/* Delete ITEM from TREE when you know that ITEM must be in TREE. For
- debugging purposes. */
-void *
-(avltr_force_delete) (avltr_tree *tree, void *item)
-{
- void *found = avltr_delete (tree, item);
- assert (found != NULL);
- return found;
-}
-
-#if SELF_TEST
-
-/* Size of the tree used for testing. */
-#define TREE_SIZE 1024
-
-/* Used to flag delayed aborting. */
-int done = 0;
-
-/* Count the number of nodes in TREE below and including NODE. */
-int
-count (avltr_tree *tree, avltr_node *node)
-{
- int n = 1;
- if (node->link[0] != NULL)
- n += count (tree, node->link[0]);
- if (node->rtag == PLUS)
- n += count (tree, node->link[1]);
- return n;
-}
-
-/* Print the structure of node NODE of an avl tree, which is LEVEL
- levels from the top of the tree. Uses different delimiters to
- visually distinguish levels. */
-void
-print_structure (avltr_tree *tree, avltr_node *node, int level)
-{
- char lc[] = "([{<`";
- char rc[] = ")]}>'";
-
- if (node == NULL)
- {
- printf (" :nil");
- return;
- }
- else if (level >= 10)
- {
- printf ("Too deep, giving up.\n");
- done = 1;
- return;
- }
- else if (node == &tree->root)
- {
- printf (" root");
- return;
- }
- printf (" %c%d", lc[level % 5], (int) node->data);
- fflush (stdout);
-
- print_structure (tree, node->link[0], level + 1);
- fflush (stdout);
-
- if (node->rtag == PLUS)
- print_structure (tree, node->link[1], level + 1);
- else if (node->link[1] != &tree->root)
- printf (" :%d", (int) node->link[1]->data);
- else
- printf (" :r");
- fflush (stdout);
-
- printf ("%c", rc[level % 5]);
- fflush (stdout);
-}
-
-/* Compare two integers A and B and return a strcmp()-type result. */
-int
-compare_ints (const void *a, const void *b, void *param unused)
-{
- return ((int) a) - ((int) b);
-}
-
-/* Print the value of integer A. */
-void
-print_int (void *a, void *param unused)
-{
- printf (" %d", (int) a);
-}
-
-/* Linearly print contents of TREE. */
-void
-print_contents (avltr_tree *tree)
-{
- avltr_walk (tree, print_int, NULL);
- printf ("\n");
-}
-
-/* Examine NODE in a avl tree. *COUNT is increased by the number of
- nodes in the tree, including the current one. If the node is the
- root of the tree, PARENT should be INT_MIN, otherwise it should be
- the parent node value. DIR is the direction that the current node
- is linked from the parent: -1 for left child, +1 for right child;
- it is not used if PARENT is INT_MIN. Returns the height of the
- tree rooted at NODE. */
-int
-recurse_tree (avltr_tree *tree, avltr_node *node, int *count, int parent,
- int dir, unsigned char *nodes, unsigned char *threads)
-{
- if (node != NULL && node != &tree->root)
- {
- int d = (int) node->data;
- int nl = 0;
- int nr = 0;
-
- (*count)++;
-
- assert (d >= 0 && d < TREE_SIZE);
- if (nodes[d / 8] & (1 << (d % 8)))
- {
- printf (" Arrived at node %d by two different paths.\n", d);
- done = 1;
- }
- else
- nodes[d / 8] |= 1 << (d % 8);
-
- if (node->link[0] != NULL)
- nl = recurse_tree (tree, node->link[0], count, d, -1, nodes, threads);
-
- if (node->rtag == PLUS)
- {
- if (node->link[1] == NULL)
- {
- printf (" Null thread link.\n");
- done = 1;
- }
- nr = recurse_tree (tree, node->link[1], count, d, 1, nodes, threads);
- }
- else if (node->link[1] != &tree->root)
- {
- int dr = (int) node->link[1]->data;
- assert (dr >= 0 && dr < TREE_SIZE);
- if (threads[dr / 8] & (1 << dr % 8))
- {
- printf (" Multiple threads to node %d.\n", d);
- done = 1;
- }
- threads[dr / 8] |= 1 << (dr % 8);
- }
-
- if (nr - nl != node->bal)
- {
- printf (" Node %d has incorrect balance: right height=%d, "
- "left height=%d, difference=%d, but balance factor=%d.\n",
- d, nr, nl, nr - nl, node->bal);
- done = 1;
- }
-
- if (node->bal < -1 || node->bal > 1)
- {
- printf (" Node %d has invalid balance factor %d.\n", d, node->bal);
- done = 1;
- }
-
- if (parent != INT_MIN)
- {
- assert (dir == -1 || dir == +1);
- if (dir == -1 && d > parent)
- {
- printf (" Node %d is smaller than its left child %d.\n",
- parent, d);
- done = 1;
- }
- else if (dir == +1 && d < parent)
- {
- printf (" Node %d is larger than its right child %d.\n",
- parent, d);
- done = 1;
- }
- }
- assert (node->bal >= -1 && node->bal <= 1);
- return 1 + (nl > nr ? nl : nr);
- }
- else return 0;
-}
-
-/* Check that everything about TREE is kosher. */
-void
-verify_tree (avltr_tree *tree)
-{
- {
- unsigned char nodes[(TREE_SIZE + 7) / 8];
- unsigned char threads[(TREE_SIZE + 7) / 8];
-
- int count = 0;
- int i;
-
- memset (nodes, 0, (TREE_SIZE + 7) / 8);
- memset (threads, 0, (TREE_SIZE + 7) / 8);
-
- recurse_tree (tree, tree->root.link[0], &count, INT_MIN, 0, nodes,
- threads);
-
- if (count != tree->count)
- {
- printf (" Tree should have %d nodes, but tree count by recursive "
- "descent is %d.\n", tree->count, count);
- done = 1;
- }
-
- for (i = 0; i < TREE_SIZE; i++)
- {
- int thread = threads[i / 8] & (1 << (i % 8));
- int node = nodes[i / 8] & (1 << (i % 8));
-
- if (thread && !node)
- {
- printf (" A thread leads to ``node'' %d, "
- "which is not in the tree.", i);
- done = 1;
- }
- }
- }
-
- /* Check threads. */
- {
- int count = 0;
- int last = INT_MIN;
- void **data = NULL;
-
- while (NULL != (data = avltr_next (tree, data)))
- {
- if (((int) *data) < last)
- {
- printf (" Misordered right threads.\n");
- abort ();
- }
- else if (((int) *data) == last)
- {
- printf (" Loop in right threads detected on %d.\n", last);
- abort ();
- }
- last = (int) *data;
- count++;
- }
-
- if (count != tree->count)
- {
- printf (" Tree should have %d nodes, but tree count by right threads "
- "is %d.\n", tree->count, count);
- done = 1;
- }
- }
-
- if (done)
- abort ();
-}
-
-/* Arrange the N elements of ARRAY in random order. */
-void
-shuffle (int *array, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j = i + rand () % (n - i);
- int t = array[j];
- array[j] = array[i];
- array[i] = t;
- }
-}
-
-/* Compares avl trees rooted at A and B, making sure that they are
- identical. */
-void
-compare_trees (avltr_node *a, avltr_node *b)
-{
- int diff = 0;
-
- assert (a && b);
-
- /* Separating these conditions makes it easier to pinpoint bad data
- under a memory debugger like Checker because each test is a
- separate statement. */
- diff |= a->data != b->data;
- diff |= a->bal != b->bal;
- diff |= ((a->link[0] != NULL) ^ (b->link[0] != NULL));
- diff |= ((a->rtag == PLUS) ^ (b->rtag == PLUS));
- if (diff)
- {
- printf (" Copied nodes differ: %d b=%d a->bal=%d b->bal=%d a:",
- (int) a->data, (int) b->data, a->bal, b->bal);
- if (a->link[0])
- printf ("l");
- if (a->link[1])
- printf ("r");
- printf (" b:");
- if (b->link[0])
- printf ("l");
- if (b->link[1])
- printf ("r");
- printf ("\n");
- abort ();
- }
- if (a->link[0] != NULL)
- compare_trees (a->link[0], b->link[0]);
- if (a->rtag == PLUS)
- compare_trees (a->link[1], b->link[1]);
-}
-
-/* Simple stress test procedure for the AVL tree routines. Does the
- following:
-
- * Generate a random number seed. By default this is generated from
- the current time. You can also pass a seed value on the command
- line if you want to test the same case. The seed value is
- displayed.
-
- * Create a tree and insert the integers from 0 up to TREE_SIZE - 1
- into it, in random order. Verify the tree structure after each
- insertion.
-
- * Remove each integer from the tree, in a different random order.
- After each deletion, verify the tree structure; also, make a copy
- of the tree into a new tree, verify the copy and compare it to the
- original, then destroy the copy.
-
- * Destroy the tree, increment the random seed value, and start over.
-
- If you make any modifications to the avl tree routines, then you
- might want to insert some calls to print_structure() at strategic
- places in order to be able to see what's really going on. Also,
- memory debuggers like Checker or Purify are very handy. */
-#define N_ITERATIONS 16
-int
-main (int argc, char **argv)
-{
- int array[TREE_SIZE];
- int seed;
- int iteration;
-
- if (argc == 2)
- seed = atoi (argv[1]);
- else
- seed = time (0) * 257 % 32768;
-
- fputs ("Testing avltr...\n", stdout);
-
- for (iteration = 1; iteration <= N_ITERATIONS; iteration++)
- {
- avltr_tree *tree;
- int i;
-
- printf ("Iteration %4d/%4d: seed=%5d", iteration, N_ITERATIONS, seed);
- fflush (stdout);
-
- srand (seed++);
-
- for (i = 0; i < TREE_SIZE; i++)
- array[i] = i;
- shuffle (array, TREE_SIZE);
-
- tree = avltr_create (compare_ints, NULL);
- for (i = 0; i < TREE_SIZE; i++)
- avltr_force_insert (tree, (void *) (array[i]));
- verify_tree (tree);
-
- shuffle (array, TREE_SIZE);
- for (i = 0; i < TREE_SIZE; i++)
- {
- avltr_tree *copy;
-
- avltr_delete (tree, (void *) (array[i]));
- verify_tree (tree);
-
- copy = avltr_copy (tree, NULL);
- verify_tree (copy);
- if (tree->root.link[0] != NULL)
- compare_trees (tree->root.link[0], copy->root.link[0]);
- else if (copy->root.link[0] != NULL)
- {
- printf (" Empty tree results in nonempty copy.\n");
- abort ();
- }
- avltr_destroy (copy, NULL);
-
- if (i % 128 == 0)
- {
- putchar ('.');
- fflush (stdout);
- }
- }
- fputs (" good.\n", stdout);
-
- avltr_destroy (tree, NULL);
- }
-
- return 0;
-}
-#endif /* SELF_TEST */
-
-/*
- Local variables:
- compile-command: "gcc -DSELF_TEST=1 -W -Wall -I. -o ./avltr-test avltr.c"
- End:
-*/
-
diff --git a/avl-1.4.0/avltr.h b/avl-1.4.0/avltr.h
deleted file mode 100644
index 27465ef..0000000
--- a/avl-1.4.0/avltr.h
+++ /dev/null
@@ -1,142 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file avltr.h in libavl. */
-
-#if !avltr_h
-#define avltr_h 1
-
-/* The default maximum height of 32 allows for AVL trees having
- between 5,704,880 and 4,294,967,295 nodes, depending on order of
- insertion. You may change this compile-time constant as you
- wish. */
-#ifndef AVL_MAX_HEIGHT
-#define AVL_MAX_HEIGHT 32
-#endif
-
-/* Structure for a node in a right-threaded AVL tree. */
-typedef struct avltr_node
- {
- void *data; /* Pointer to data. */
- struct avltr_node *link[2]; /* Subtrees or threads. */
- signed char bal; /* Balance factor. */
- char cache; /* Used during insertion. */
- char pad; /* Reserved for fully threaded trees. */
- signed char rtag; /* Right thread tag. */
- }
-avltr_node;
-
-/* Used for traversing a right-threaded AVL tree. */
-typedef struct avltr_traverser
- {
- int init; /* Initialized? */
- const avltr_node *p; /* Last node returned. */
- }
-avltr_traverser;
-
-/* Initializer for avltr_traverser. */
-#define AVLTR_TRAVERSER_INIT {0}
-
-/* Function types. */
-#if !AVL_FUNC_TYPES
-#define AVL_FUNC_TYPES 1
-typedef int (*avl_comparison_func) (const void *a, const void *b, void *param);
-typedef void (*avl_node_func) (void *data, void *param);
-typedef void *(*avl_copy_func) (void *data, void *param);
-#endif
-
-/* Structure which holds information about a threaded AVL tree. */
-typedef struct avltr_tree
- {
- avltr_node root; /* Tree root node. */
- avl_comparison_func cmp; /* Used to compare keys. */
- int count; /* Number of nodes in the tree. */
- void *param; /* Arbitary user data. */
- }
-avltr_tree;
-
-/* General functions. */
-avltr_tree *avltr_create (avl_comparison_func, void *param);
-void avltr_destroy (avltr_tree *, avl_node_func);
-void avltr_free (avltr_tree *);
-int avltr_count (const avltr_tree *);
-avltr_tree *avltr_copy (const avltr_tree *, avl_copy_func);
-struct avl_tree;
-avltr_tree *avltr_thread (struct avl_tree *);
-struct avl_tree *avltr_unthread (avltr_tree *);
-
-/* Walk the tree. */
-void avltr_walk (const avltr_tree *, avl_node_func, void *param);
-void *avltr_traverse (const avltr_tree *, avltr_traverser *);
-#define avlt_init_traverser(TRAVERSER) ((TRAVERSER)->init = 0)
-void **avltr_next (const avltr_tree *tree, void **item);
-
-/* Search for a given item. */
-void **avltr_probe (avltr_tree *, void *);
-void *avltr_delete (avltr_tree *, const void *);
-void **avltr_find (const avltr_tree *, const void *);
-void **avltr_find_close (const avltr_tree *, const void *);
-
-#if __GCC__ >= 2
-extern inline void *
-avltr_insert (avltr_tree *tree, void *item)
-{
- void **p = avltr_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-extern inline void *
-avltr_replace (avltr_tree *tree, void *item)
-{
- void **p = avltr_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-#else /* not gcc */
-void *avltr_insert (avltr_tree *tree, void *item);
-void *avltr_replace (avltr_tree *tree, void *item);
-#endif /* not gcc */
-
-/* Easy assertions on insertion & deletion. */
-#ifndef NDEBUG
-#define avltr_force_insert(A, B) \
- do \
- { \
- void *r = avltr_insert (A, B); \
- assert (r == NULL); \
- } \
- while (0)
-void *avltr_force_delete (avltr_tree *, void *);
-#else
-#define avltr_force_insert(A, B) \
- avltr_insert (A, B)
-#define avltr_force_delete(A, B) \
- avltr_delete (A, B)
-#endif
-
-#endif /* avltr_h */
diff --git a/avl-1.4.0/configure b/avl-1.4.0/configure
deleted file mode 100755
index 5b955a9..0000000
--- a/avl-1.4.0/configure
+++ /dev/null
@@ -1,1297 +0,0 @@
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-
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-# gives unlimited permission to copy, distribute and modify it.
-
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-silent=
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-if test -r "$cache_file"; then
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-
-ac_exeext=
-ac_objext=o
-if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
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- ac_n= ac_c='\c' ac_t=
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-
-
-ac_aux_dir=
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- ac_install_sh="$ac_aux_dir/install.sh -c"
- break
- fi
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-if test -z "$ac_aux_dir"; then
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-ac_config_guess=$ac_aux_dir/config.guess
-ac_config_sub=$ac_aux_dir/config.sub
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-
-# Find a good install program. We prefer a C program (faster),
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-# IRIX /sbin/install
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-# AFS /usr/afsws/bin/install, which mishandles nonexistent args
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-echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:556: checking for a BSD compatible install" >&5
-if test -z "$INSTALL"; then
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-else
- IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS=":"
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- *)
- # OSF1 and SCO ODT 3.0 have their own names for install.
- # Don't use installbsd from OSF since it installs stuff as root
- # by default.
- for ac_prog in ginstall scoinst install; do
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- # AIX install. It has an incompatible calling convention.
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- else
- ac_cv_path_install="$ac_dir/$ac_prog -c"
- break 2
- fi
- fi
- done
- ;;
- esac
- done
- IFS="$ac_save_IFS"
-
-fi
- if test "${ac_cv_path_install+set}" = set; then
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- else
- # As a last resort, use the slow shell script. We don't cache a
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- # break other packages using the cache if that directory is
- # removed, or if the path is relative.
- INSTALL="$ac_install_sh"
- fi
-fi
-echo "$ac_t""$INSTALL" 1>&6
-
-# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
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-
-test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
-
-test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
-
-echo $ac_n "checking whether build environment is sane""... $ac_c" 1>&6
-echo "configure:609: checking whether build environment is sane" >&5
-# Just in case
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-echo timestamp > conftestfile
-# Do `set' in a subshell so we don't clobber the current shell's
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-if (
- set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
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- set X `ls -t $srcdir/configure conftestfile`
- fi
- if test "$*" != "X $srcdir/configure conftestfile" \
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- # If neither matched, then we have a broken ls. This can happen
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- fi
-
- test "$2" = conftestfile
- )
-then
- # Ok.
- :
-else
- { echo "configure: error: newly created file is older than distributed files!
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-fi
-rm -f conftest*
-echo "$ac_t""yes" 1>&6
-if test "$program_transform_name" = s,x,x,; then
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-else
- # Double any \ or $. echo might interpret backslashes.
- cat <<\EOF_SED > conftestsed
-s,\\,\\\\,g; s,\$,$$,g
-EOF_SED
- program_transform_name="`echo $program_transform_name|sed -f conftestsed`"
- rm -f conftestsed
-fi
-test "$program_prefix" != NONE &&
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-# Use a double $ so make ignores it.
-test "$program_suffix" != NONE &&
- program_transform_name="s,\$\$,${program_suffix},; $program_transform_name"
-
-# sed with no file args requires a program.
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-
-echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:666: checking whether ${MAKE-make} sets \${MAKE}" >&5
-set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftestmake <<\EOF
-all:
- @echo 'ac_maketemp="${MAKE}"'
-EOF
-# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
-eval `${MAKE-make} -f conftestmake 2>/dev/null | grep temp=`
-if test -n "$ac_maketemp"; then
- eval ac_cv_prog_make_${ac_make}_set=yes
-else
- eval ac_cv_prog_make_${ac_make}_set=no
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-rm -f conftestmake
-fi
-if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
- echo "$ac_t""yes" 1>&6
- SET_MAKE=
-else
- echo "$ac_t""no" 1>&6
- SET_MAKE="MAKE=${MAKE-make}"
-fi
-
-
-PACKAGE=avl
-
-VERSION=1.4.0
-
-if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
- { echo "configure: error: source directory already configured; run "make distclean" there first" 1>&2; exit 1; }
-fi
-cat >> confdefs.h <> confdefs.h <&6
-echo "configure:712: checking for working aclocal" >&5
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf. Sigh.
-if (aclocal --version) < /dev/null > /dev/null 2>&1; then
- ACLOCAL=aclocal
- echo "$ac_t""found" 1>&6
-else
- ACLOCAL="$missing_dir/missing aclocal"
- echo "$ac_t""missing" 1>&6
-fi
-
-echo $ac_n "checking for working autoconf""... $ac_c" 1>&6
-echo "configure:725: checking for working autoconf" >&5
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf. Sigh.
-if (autoconf --version) < /dev/null > /dev/null 2>&1; then
- AUTOCONF=autoconf
- echo "$ac_t""found" 1>&6
-else
- AUTOCONF="$missing_dir/missing autoconf"
- echo "$ac_t""missing" 1>&6
-fi
-
-echo $ac_n "checking for working automake""... $ac_c" 1>&6
-echo "configure:738: checking for working automake" >&5
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf. Sigh.
-if (automake --version) < /dev/null > /dev/null 2>&1; then
- AUTOMAKE=automake
- echo "$ac_t""found" 1>&6
-else
- AUTOMAKE="$missing_dir/missing automake"
- echo "$ac_t""missing" 1>&6
-fi
-
-echo $ac_n "checking for working autoheader""... $ac_c" 1>&6
-echo "configure:751: checking for working autoheader" >&5
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf. Sigh.
-if (autoheader --version) < /dev/null > /dev/null 2>&1; then
- AUTOHEADER=autoheader
- echo "$ac_t""found" 1>&6
-else
- AUTOHEADER="$missing_dir/missing autoheader"
- echo "$ac_t""missing" 1>&6
-fi
-
-echo $ac_n "checking for working makeinfo""... $ac_c" 1>&6
-echo "configure:764: checking for working makeinfo" >&5
-# Run test in a subshell; some versions of sh will print an error if
-# an executable is not found, even if stderr is redirected.
-# Redirect stdin to placate older versions of autoconf. Sigh.
-if (makeinfo --version) < /dev/null > /dev/null 2>&1; then
- MAKEINFO=makeinfo
- echo "$ac_t""found" 1>&6
-else
- MAKEINFO="$missing_dir/missing makeinfo"
- echo "$ac_t""missing" 1>&6
-fi
-
-
-# Extract the first word of "gcc", so it can be a program name with args.
-set dummy gcc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:780: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_CC="gcc"
- break
- fi
- done
- IFS="$ac_save_ifs"
-fi
-fi
-CC="$ac_cv_prog_CC"
-if test -n "$CC"; then
- echo "$ac_t""$CC" 1>&6
-else
- echo "$ac_t""no" 1>&6
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-
-if test -z "$CC"; then
- # Extract the first word of "cc", so it can be a program name with args.
-set dummy cc; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:810: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$CC"; then
- ac_cv_prog_CC="$CC" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_prog_rejected=no
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
- test -z "$ac_dir" && ac_dir=.
- if test -f $ac_dir/$ac_word; then
- if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
- ac_prog_rejected=yes
- continue
- fi
- ac_cv_prog_CC="cc"
- break
- fi
- done
- IFS="$ac_save_ifs"
-if test $ac_prog_rejected = yes; then
- # We found a bogon in the path, so make sure we never use it.
- set dummy $ac_cv_prog_CC
- shift
- if test $# -gt 0; then
- # We chose a different compiler from the bogus one.
- # However, it has the same basename, so the bogon will be chosen
- # first if we set CC to just the basename; use the full file name.
- shift
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- shift
- ac_cv_prog_CC="$@"
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-CC="$ac_cv_prog_CC"
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- echo "$ac_t""no" 1>&6
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-
- if test -z "$CC"; then
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- # Extract the first word of "cl", so it can be a program name with args.
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-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:861: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
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-else
- if test -n "$CC"; then
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-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
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- if test -f $ac_dir/$ac_word; then
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- IFS="$ac_save_ifs"
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-CC="$ac_cv_prog_CC"
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-else
- echo "$ac_t""no" 1>&6
-fi
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- esac
- fi
- test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
-fi
-
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:893: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
-
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-cat > conftest.$ac_ext << EOF
-
-#line 904 "configure"
-#include "confdefs.h"
-
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- ac_cv_prog_cc_works=yes
- # If we can't run a trivial program, we are probably using a cross compiler.
- if (./conftest; exit) 2>/dev/null; then
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- else
- ac_cv_prog_cc_cross=yes
- fi
-else
- echo "configure: failed program was:" >&5
- cat conftest.$ac_ext >&5
- ac_cv_prog_cc_works=no
-fi
-rm -fr conftest*
-ac_ext=c
-# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
-ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo "$ac_t""$ac_cv_prog_cc_works" 1>&6
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- { echo "configure: error: installation or configuration problem: C compiler cannot create executables." 1>&2; exit 1; }
-fi
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler""... $ac_c" 1>&6
-echo "configure:935: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) is a cross-compiler" >&5
-echo "$ac_t""$ac_cv_prog_cc_cross" 1>&6
-cross_compiling=$ac_cv_prog_cc_cross
-
-echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:940: checking whether we are using GNU C" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftest.c <&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
- ac_cv_prog_gcc=yes
-else
- ac_cv_prog_gcc=no
-fi
-fi
-
-echo "$ac_t""$ac_cv_prog_gcc" 1>&6
-
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- GCC=
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-
-ac_test_CFLAGS="${CFLAGS+set}"
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=
-echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:968: checking whether ${CC-cc} accepts -g" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- echo 'void f(){}' > conftest.c
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-else
- ac_cv_prog_cc_g=no
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-rm -f conftest*
-
-fi
-
-echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
-if test "$ac_test_CFLAGS" = set; then
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- if test "$GCC" = yes; then
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- else
- CFLAGS="-g"
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- if test "$GCC" = yes; then
- CFLAGS="-O2"
- else
- CFLAGS=
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-fi
-
-# Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:1002: checking for $ac_word" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- if test -n "$RANLIB"; then
- ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
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- if test -f $ac_dir/$ac_word; then
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- break
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- IFS="$ac_save_ifs"
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-else
- echo "$ac_t""no" 1>&6
-fi
-
-trap '' 1 2 15
-cat > confcache <<\EOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs. It is not useful on other systems.
-# If it contains results you don't want to keep, you may remove or edit it.
-#
-# By default, configure uses ./config.cache as the cache file,
-# creating it if it does not exist already. You can give configure
-# the --cache-file=FILE option to use a different cache file; that is
-# what configure does when it calls configure scripts in
-# subdirectories, so they share the cache.
-# Giving --cache-file=/dev/null disables caching, for debugging configure.
-# config.status only pays attention to the cache file if you give it the
-# --recheck option to rerun configure.
-#
-EOF
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, don't put newlines in cache variables' values.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(set) 2>&1 |
- case `(ac_space=' '; set | grep ac_space) 2>&1` in
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- # `set' does not quote correctly, so add quotes (double-quote substitution
- # turns \\\\ into \\, and sed turns \\ into \).
- sed -n \
- -e "s/'/'\\\\''/g" \
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- ;;
- *)
- # `set' quotes correctly as required by POSIX, so do not add quotes.
- sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
- ;;
- esac >> confcache
-if cmp -s $cache_file confcache; then
- :
-else
- if test -w $cache_file; then
- echo "updating cache $cache_file"
- cat confcache > $cache_file
- else
- echo "not updating unwritable cache $cache_file"
- fi
-fi
-rm -f confcache
-
-trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
-
-test "x$prefix" = xNONE && prefix=$ac_default_prefix
-# Let make expand exec_prefix.
-test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-
-# Any assignment to VPATH causes Sun make to only execute
-# the first set of double-colon rules, so remove it if not needed.
-# If there is a colon in the path, we need to keep it.
-if test "x$srcdir" = x.; then
- ac_vpsub='/^[ ]*VPATH[ ]*=[^:]*$/d'
-fi
-
-trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
-
-# Transform confdefs.h into DEFS.
-# Protect against shell expansion while executing Makefile rules.
-# Protect against Makefile macro expansion.
-cat > conftest.defs <<\EOF
-s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
-s%[ `~#$^&*(){}\\|;'"<>?]%\\&%g
-s%\[%\\&%g
-s%\]%\\&%g
-s%\$%$$%g
-EOF
-DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
-rm -f conftest.defs
-
-
-# Without the "./", some shells look in PATH for config.status.
-: ${CONFIG_STATUS=./config.status}
-
-echo creating $CONFIG_STATUS
-rm -f $CONFIG_STATUS
-cat > $CONFIG_STATUS </dev/null | sed 1q`:
-#
-# $0 $ac_configure_args
-#
-# Compiler output produced by configure, useful for debugging
-# configure, is in ./config.log if it exists.
-
-ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
-for ac_option
-do
- case "\$ac_option" in
- -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
- echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
- exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
- -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
- echo "$CONFIG_STATUS generated by autoconf version 2.13"
- exit 0 ;;
- -help | --help | --hel | --he | --h)
- echo "\$ac_cs_usage"; exit 0 ;;
- *) echo "\$ac_cs_usage"; exit 1 ;;
- esac
-done
-
-ac_given_srcdir=$srcdir
-ac_given_INSTALL="$INSTALL"
-
-trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
-EOF
-cat >> $CONFIG_STATUS < conftest.subs <<\\CEOF
-$ac_vpsub
-$extrasub
-s%@SHELL@%$SHELL%g
-s%@CFLAGS@%$CFLAGS%g
-s%@CPPFLAGS@%$CPPFLAGS%g
-s%@CXXFLAGS@%$CXXFLAGS%g
-s%@FFLAGS@%$FFLAGS%g
-s%@DEFS@%$DEFS%g
-s%@LDFLAGS@%$LDFLAGS%g
-s%@LIBS@%$LIBS%g
-s%@exec_prefix@%$exec_prefix%g
-s%@prefix@%$prefix%g
-s%@program_transform_name@%$program_transform_name%g
-s%@bindir@%$bindir%g
-s%@sbindir@%$sbindir%g
-s%@libexecdir@%$libexecdir%g
-s%@datadir@%$datadir%g
-s%@sysconfdir@%$sysconfdir%g
-s%@sharedstatedir@%$sharedstatedir%g
-s%@localstatedir@%$localstatedir%g
-s%@libdir@%$libdir%g
-s%@includedir@%$includedir%g
-s%@oldincludedir@%$oldincludedir%g
-s%@infodir@%$infodir%g
-s%@mandir@%$mandir%g
-s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
-s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
-s%@INSTALL_DATA@%$INSTALL_DATA%g
-s%@PACKAGE@%$PACKAGE%g
-s%@VERSION@%$VERSION%g
-s%@ACLOCAL@%$ACLOCAL%g
-s%@AUTOCONF@%$AUTOCONF%g
-s%@AUTOMAKE@%$AUTOMAKE%g
-s%@AUTOHEADER@%$AUTOHEADER%g
-s%@MAKEINFO@%$MAKEINFO%g
-s%@SET_MAKE@%$SET_MAKE%g
-s%@CC@%$CC%g
-s%@RANLIB@%$RANLIB%g
-
-CEOF
-EOF
-
-cat >> $CONFIG_STATUS <<\EOF
-
-# Split the substitutions into bite-sized pieces for seds with
-# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
-ac_file=1 # Number of current file.
-ac_beg=1 # First line for current file.
-ac_end=$ac_max_sed_cmds # Line after last line for current file.
-ac_more_lines=:
-ac_sed_cmds=""
-while $ac_more_lines; do
- if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
- else
- sed "${ac_end}q" conftest.subs > conftest.s$ac_file
- fi
- if test ! -s conftest.s$ac_file; then
- ac_more_lines=false
- rm -f conftest.s$ac_file
- else
- if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f conftest.s$ac_file"
- else
- ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
- fi
- ac_file=`expr $ac_file + 1`
- ac_beg=$ac_end
- ac_end=`expr $ac_end + $ac_max_sed_cmds`
- fi
-done
-if test -z "$ac_sed_cmds"; then
- ac_sed_cmds=cat
-fi
-EOF
-
-cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF
-for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
- # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
- case "$ac_file" in
- *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
- ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
- *) ac_file_in="${ac_file}.in" ;;
- esac
-
- # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
-
- # Remove last slash and all that follows it. Not all systems have dirname.
- ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
- if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
- # The file is in a subdirectory.
- test ! -d "$ac_dir" && mkdir "$ac_dir"
- ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
- # A "../" for each directory in $ac_dir_suffix.
- ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
- else
- ac_dir_suffix= ac_dots=
- fi
-
- case "$ac_given_srcdir" in
- .) srcdir=.
- if test -z "$ac_dots"; then top_srcdir=.
- else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
- /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
- *) # Relative path.
- srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
- top_srcdir="$ac_dots$ac_given_srcdir" ;;
- esac
-
- case "$ac_given_INSTALL" in
- [/$]*) INSTALL="$ac_given_INSTALL" ;;
- *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
- esac
-
- echo creating "$ac_file"
- rm -f "$ac_file"
- configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
- case "$ac_file" in
- *Makefile*) ac_comsub="1i\\
-# $configure_input" ;;
- *) ac_comsub= ;;
- esac
-
- ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
- sed -e "$ac_comsub
-s%@configure_input@%$configure_input%g
-s%@srcdir@%$srcdir%g
-s%@top_srcdir@%$top_srcdir%g
-s%@INSTALL@%$INSTALL%g
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
-fi; done
-rm -f conftest.s*
-
-EOF
-cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF
-
-exit 0
-EOF
-chmod +x $CONFIG_STATUS
-rm -fr confdefs* $ac_clean_files
-test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
-
diff --git a/avl-1.4.0/configure.in b/avl-1.4.0/configure.in
deleted file mode 100644
index 118f3c8..0000000
--- a/avl-1.4.0/configure.in
+++ /dev/null
@@ -1,5 +0,0 @@
-AC_INIT(avl.c)
-AM_INIT_AUTOMAKE(avl, 1.4.0)
-AC_PROG_CC
-AC_PROG_RANLIB
-AC_OUTPUT(Makefile)
diff --git a/avl-1.4.0/install-sh b/avl-1.4.0/install-sh
deleted file mode 100755
index e9de238..0000000
--- a/avl-1.4.0/install-sh
+++ /dev/null
@@ -1,251 +0,0 @@
-#!/bin/sh
-#
-# install - install a program, script, or datafile
-# This comes from X11R5 (mit/util/scripts/install.sh).
-#
-# Copyright 1991 by the Massachusetts Institute of Technology
-#
-# Permission to use, copy, modify, distribute, and sell this software and its
-# documentation for any purpose is hereby granted without fee, provided that
-# the above copyright notice appear in all copies and that both that
-# copyright notice and this permission notice appear in supporting
-# documentation, and that the name of M.I.T. not be used in advertising or
-# publicity pertaining to distribution of the software without specific,
-# written prior permission. M.I.T. makes no representations about the
-# suitability of this software for any purpose. It is provided "as is"
-# without express or implied warranty.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch. It can only install one file at a time, a restriction
-# shared with many OS's install programs.
-
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
-
-
-# put in absolute paths if you don't have them in your path; or use env. vars.
-
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-mkdirprog="${MKDIRPROG-mkdir}"
-
-transformbasename=""
-transform_arg=""
-instcmd="$mvprog"
-chmodcmd="$chmodprog 0755"
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-dir_arg=""
-
-while [ x"$1" != x ]; do
- case $1 in
- -c) instcmd="$cpprog"
- shift
- continue;;
-
- -d) dir_arg=true
- shift
- continue;;
-
- -m) chmodcmd="$chmodprog $2"
- shift
- shift
- continue;;
-
- -o) chowncmd="$chownprog $2"
- shift
- shift
- continue;;
-
- -g) chgrpcmd="$chgrpprog $2"
- shift
- shift
- continue;;
-
- -s) stripcmd="$stripprog"
- shift
- continue;;
-
- -t=*) transformarg=`echo $1 | sed 's/-t=//'`
- shift
- continue;;
-
- -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
- shift
- continue;;
-
- *) if [ x"$src" = x ]
- then
- src=$1
- else
- # this colon is to work around a 386BSD /bin/sh bug
- :
- dst=$1
- fi
- shift
- continue;;
- esac
-done
-
-if [ x"$src" = x ]
-then
- echo "install: no input file specified"
- exit 1
-else
- true
-fi
-
-if [ x"$dir_arg" != x ]; then
- dst=$src
- src=""
-
- if [ -d $dst ]; then
- instcmd=:
- chmodcmd=""
- else
- instcmd=mkdir
- fi
-else
-
-# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
-# might cause directories to be created, which would be especially bad
-# if $src (and thus $dsttmp) contains '*'.
-
- if [ -f $src -o -d $src ]
- then
- true
- else
- echo "install: $src does not exist"
- exit 1
- fi
-
- if [ x"$dst" = x ]
- then
- echo "install: no destination specified"
- exit 1
- else
- true
- fi
-
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
-
- if [ -d $dst ]
- then
- dst="$dst"/`basename $src`
- else
- true
- fi
-fi
-
-## this sed command emulates the dirname command
-dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
-
-# Make sure that the destination directory exists.
-# this part is taken from Noah Friedman's mkinstalldirs script
-
-# Skip lots of stat calls in the usual case.
-if [ ! -d "$dstdir" ]; then
-defaultIFS='
-'
-IFS="${IFS-${defaultIFS}}"
-
-oIFS="${IFS}"
-# Some sh's can't handle IFS=/ for some reason.
-IFS='%'
-set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
-IFS="${oIFS}"
-
-pathcomp=''
-
-while [ $# -ne 0 ] ; do
- pathcomp="${pathcomp}${1}"
- shift
-
- if [ ! -d "${pathcomp}" ] ;
- then
- $mkdirprog "${pathcomp}"
- else
- true
- fi
-
- pathcomp="${pathcomp}/"
-done
-fi
-
-if [ x"$dir_arg" != x ]
-then
- $doit $instcmd $dst &&
-
- if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
- if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
- if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
- if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
-else
-
-# If we're going to rename the final executable, determine the name now.
-
- if [ x"$transformarg" = x ]
- then
- dstfile=`basename $dst`
- else
- dstfile=`basename $dst $transformbasename |
- sed $transformarg`$transformbasename
- fi
-
-# don't allow the sed command to completely eliminate the filename
-
- if [ x"$dstfile" = x ]
- then
- dstfile=`basename $dst`
- else
- true
- fi
-
-# Make a temp file name in the proper directory.
-
- dsttmp=$dstdir/#inst.$$#
-
-# Move or copy the file name to the temp name
-
- $doit $instcmd $src $dsttmp &&
-
- trap "rm -f ${dsttmp}" 0 &&
-
-# and set any options; do chmod last to preserve setuid bits
-
-# If any of these fail, we abort the whole thing. If we want to
-# ignore errors from any of these, just make sure not to ignore
-# errors from the above "$doit $instcmd $src $dsttmp" command.
-
- if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
- if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
- if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
- if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
-
-# Now rename the file to the real destination.
-
- $doit $rmcmd -f $dstdir/$dstfile &&
- $doit $mvcmd $dsttmp $dstdir/$dstfile
-
-fi &&
-
-
-exit 0
diff --git a/avl-1.4.0/missing b/avl-1.4.0/missing
deleted file mode 100755
index 7789652..0000000
--- a/avl-1.4.0/missing
+++ /dev/null
@@ -1,190 +0,0 @@
-#! /bin/sh
-# Common stub for a few missing GNU programs while installing.
-# Copyright (C) 1996, 1997 Free Software Foundation, Inc.
-# Franc,ois Pinard , 1996.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-# 02111-1307, USA.
-
-if test $# -eq 0; then
- echo 1>&2 "Try \`$0 --help' for more information"
- exit 1
-fi
-
-case "$1" in
-
- -h|--h|--he|--hel|--help)
- echo "\
-$0 [OPTION]... PROGRAM [ARGUMENT]...
-
-Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
-error status if there is no known handling for PROGRAM.
-
-Options:
- -h, --help display this help and exit
- -v, --version output version information and exit
-
-Supported PROGRAM values:
- aclocal touch file \`aclocal.m4'
- autoconf touch file \`configure'
- autoheader touch file \`config.h.in'
- automake touch all \`Makefile.in' files
- bison create \`y.tab.[ch]', if possible, from existing .[ch]
- flex create \`lex.yy.c', if possible, from existing .c
- lex create \`lex.yy.c', if possible, from existing .c
- makeinfo touch the output file
- yacc create \`y.tab.[ch]', if possible, from existing .[ch]"
- ;;
-
- -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
- echo "missing - GNU libit 0.0"
- ;;
-
- -*)
- echo 1>&2 "$0: Unknown \`$1' option"
- echo 1>&2 "Try \`$0 --help' for more information"
- exit 1
- ;;
-
- aclocal)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified \`acinclude.m4' or \`configure.in'. You might want
- to install the \`Automake' and \`Perl' packages. Grab them from
- any GNU archive site."
- touch aclocal.m4
- ;;
-
- autoconf)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified \`configure.in'. You might want to install the
- \`Autoconf' and \`GNU m4' packages. Grab them from any GNU
- archive site."
- touch configure
- ;;
-
- autoheader)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified \`acconfig.h' or \`configure.in'. You might want
- to install the \`Autoconf' and \`GNU m4' packages. Grab them
- from any GNU archive site."
- files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' configure.in`
- test -z "$files" && files="config.h"
- touch_files=
- for f in $files; do
- case "$f" in
- *:*) touch_files="$touch_files "`echo "$f" |
- sed -e 's/^[^:]*://' -e 's/:.*//'`;;
- *) touch_files="$touch_files $f.in";;
- esac
- done
- touch $touch_files
- ;;
-
- automake)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified \`Makefile.am', \`acinclude.m4' or \`configure.in'.
- You might want to install the \`Automake' and \`Perl' packages.
- Grab them from any GNU archive site."
- find . -type f -name Makefile.am -print |
- sed 's/\.am$/.in/' |
- while read f; do touch "$f"; done
- ;;
-
- bison|yacc)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified a \`.y' file. You may need the \`Bison' package
- in order for those modifications to take effect. You can get
- \`Bison' from any GNU archive site."
- rm -f y.tab.c y.tab.h
- if [ $# -ne 1 ]; then
- eval LASTARG="\${$#}"
- case "$LASTARG" in
- *.y)
- SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
- if [ -f "$SRCFILE" ]; then
- cp "$SRCFILE" y.tab.c
- fi
- SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
- if [ -f "$SRCFILE" ]; then
- cp "$SRCFILE" y.tab.h
- fi
- ;;
- esac
- fi
- if [ ! -f y.tab.h ]; then
- echo >y.tab.h
- fi
- if [ ! -f y.tab.c ]; then
- echo 'main() { return 0; }' >y.tab.c
- fi
- ;;
-
- lex|flex)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified a \`.l' file. You may need the \`Flex' package
- in order for those modifications to take effect. You can get
- \`Flex' from any GNU archive site."
- rm -f lex.yy.c
- if [ $# -ne 1 ]; then
- eval LASTARG="\${$#}"
- case "$LASTARG" in
- *.l)
- SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
- if [ -f "$SRCFILE" ]; then
- cp "$SRCFILE" lex.yy.c
- fi
- ;;
- esac
- fi
- if [ ! -f lex.yy.c ]; then
- echo 'main() { return 0; }' >lex.yy.c
- fi
- ;;
-
- makeinfo)
- echo 1>&2 "\
-WARNING: \`$1' is missing on your system. You should only need it if
- you modified a \`.texi' or \`.texinfo' file, or any other file
- indirectly affecting the aspect of the manual. The spurious
- call might also be the consequence of using a buggy \`make' (AIX,
- DU, IRIX). You might want to install the \`Texinfo' package or
- the \`GNU make' package. Grab either from any GNU archive site."
- file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
- if test -z "$file"; then
- file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
- file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
- fi
- touch $file
- ;;
-
- *)
- echo 1>&2 "\
-WARNING: \`$1' is needed, and you do not seem to have it handy on your
- system. You might have modified some files without having the
- proper tools for further handling them. Check the \`README' file,
- it often tells you about the needed prerequirements for installing
- this package. You may also peek at any GNU archive site, in case
- some other package would contain this missing \`$1' program."
- exit 1
- ;;
-esac
-
-exit 0
diff --git a/avl-1.4.0/mkinstalldirs b/avl-1.4.0/mkinstalldirs
deleted file mode 100755
index 6b3b5fc..0000000
--- a/avl-1.4.0/mkinstalldirs
+++ /dev/null
@@ -1,40 +0,0 @@
-#! /bin/sh
-# mkinstalldirs --- make directory hierarchy
-# Author: Noah Friedman
-# Created: 1993-05-16
-# Public domain
-
-# $Id$
-
-errstatus=0
-
-for file
-do
- set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
- shift
-
- pathcomp=
- for d
- do
- pathcomp="$pathcomp$d"
- case "$pathcomp" in
- -* ) pathcomp=./$pathcomp ;;
- esac
-
- if test ! -d "$pathcomp"; then
- echo "mkdir $pathcomp"
-
- mkdir "$pathcomp" || lasterr=$?
-
- if test ! -d "$pathcomp"; then
- errstatus=$lasterr
- fi
- fi
-
- pathcomp="$pathcomp/"
- done
-done
-
-exit $errstatus
-
-# mkinstalldirs ends here
diff --git a/avl-1.4.0/rb.c b/avl-1.4.0/rb.c
deleted file mode 100644
index b0ec05d..0000000
--- a/avl-1.4.0/rb.c
+++ /dev/null
@@ -1,1083 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file rb.c in libavl. */
-
-#if HAVE_CONFIG_H
-#include
-#endif
-#if SELF_TEST
-#include
-#include
-#endif
-#include
-#include
-#include
-#include "rb.h"
-
-#if !PSPP && !__GCC__
-#define inline
-#endif
-
-#if __GNUC__ >= 2
-#define unused __attribute__ ((unused))
-#else
-#define unused
-#endif
-
-#ifdef HAVE_XMALLOC
-void *xmalloc (size_t);
-#else /* !HAVE_XMALLOC */
-/* Allocates SIZE bytes of space using malloc(). Aborts if out of
- memory. */
-static void *
-xmalloc (size_t size)
-{
- void *vp;
-
- if (size == 0)
- return NULL;
- vp = malloc (size);
-
- assert (vp != NULL);
- if (vp == NULL)
- {
- fprintf (stderr, "virtual memory exhausted\n");
- exit (EXIT_FAILURE);
- }
- return vp;
-}
-#endif /* !HAVE_XMALLOC */
-
-/* Creates a red-black tree in arena OWNER (which can be NULL). The
- arena is owned by the caller, not by the red-black tree. CMP is a
- order function for the data to be stored in the tree. PARAM is
- arbitrary data that becomes an argument to the comparison
- function. */
-rb_tree *
-rb_create (MAYBE_ARENA avl_comparison_func cmp, void *param)
-{
- rb_tree *tree;
-
- assert (cmp != NULL);
- tree = xmalloc (sizeof (rb_tree));
-
- tree->root.link[0] = NULL;
- tree->root.link[1] = NULL;
- tree->cmp = cmp;
- tree->count = 0;
- tree->param = param;
-
- return tree;
-}
-
-/* Destroy tree TREE. Function FREE_FUNC is called for every node in
- the tree as it is destroyed.
-
- No effect if the tree has an arena owner and free_func is NULL.
- The caller owns the arena and must destroy it itself.
-
- Do not attempt to reuse the tree after it has been freed. Create a
- new one. */
-void
-rb_destroy (rb_tree *tree, avl_node_func free_func)
-{
- assert (tree != NULL);
-
- {
- /* Uses Knuth's Algorithm 2.3.1T as modified in exercise 13
- (postorder traversal). */
-
- /* T1. */
- rb_node *an[RB_MAX_HEIGHT]; /* Stack A: nodes. */
- unsigned long ab = 0; /* Stack A: bits. */
- int ap = 0; /* Stack A: height. */
- rb_node *p = tree->root.link[0];
-
- for (;;)
- {
- /* T2. */
- while (p != NULL)
- {
- /* T3. */
- ab &= ~(1ul << ap);
- an[ap++] = p;
- p = p->link[0];
- }
-
- /* T4. */
- for (;;)
- {
- if (ap == 0)
- goto done;
-
- p = an[--ap];
- if ((ab & (1ul << ap)) == 0)
- {
- ab |= (1ul << ap++);
- p = p->link[1];
- break;
- }
-
- if (free_func)
- free_func (p->data, tree->param);
- free (p);
- }
- }
- }
-
- done:
- free (tree);
-}
-
-/* rb_destroy() with FREE_FUNC hardcoded as free(). */
-void
-rb_free (rb_tree *tree)
-{
- rb_destroy (tree, (avl_node_func) free);
-}
-
-/* Return the number of nodes in TREE. */
-int
-rb_count (const rb_tree *tree)
-{
- assert (tree != NULL);
- return tree->count;
-}
-
-/* Copy the contents of TREE to a new tree in arena OWNER. If COPY is
- non-NULL, then each data item is passed to function COPY, and the
- return values are inserted into the new tree; otherwise, the items
- are copied verbatim from the old tree to the new tree. Returns the
- new tree. */
-rb_tree *
-rb_copy (MAYBE_ARENA const rb_tree *tree, avl_copy_func copy)
-{
- /* This is a combination of Knuth's Algorithm 2.3.1C (copying a
- binary tree) and Algorithm 2.3.1T as modified by exercise 12
- (preorder traversal). */
-
- rb_tree *new_tree;
-
- /* PT1. */
- const rb_node *pa[RB_MAX_HEIGHT]; /* Stack PA: nodes. */
- const rb_node **pp = pa; /* Stack PA: stack pointer. */
- const rb_node *p = &tree->root;
-
- /* QT1. */
- rb_node *qa[RB_MAX_HEIGHT]; /* Stack QA: nodes. */
- rb_node **qp = qa; /* Stack QA: stack pointer. */
- rb_node *q;
-
- assert (tree != NULL);
- new_tree = rb_create (tree->cmp, tree->param);
- new_tree->count = tree->count;
- q = &new_tree->root;
-
- for (;;)
- {
- /* C4. */
- if (p->link[0] != NULL)
- {
- rb_node *r = xmalloc (sizeof (rb_node));
- r->link[0] = r->link[1] = NULL;
- q->link[0] = r;
- }
-
- /* C5: Find preorder successors of P and Q. */
- goto start;
- for (;;)
- {
- /* PT2. */
- while (p != NULL)
- {
- goto escape;
- start:
- /* PT3. */
- *pp++ = p;
- *qp++ = q;
- p = p->link[0];
- q = q->link[0];
- }
-
- /* PT4. */
- if (pp == pa)
- {
- assert (qp == qa);
- return new_tree;
- }
-
- p = *--pp;
- q = *--qp;
-
- /* PT5. */
- p = p->link[1];
- q = q->link[1];
- }
- escape:
-
- /* C2. */
- if (p->link[1])
- {
- rb_node *r = xmalloc (sizeof (rb_node));
- r->link[0] = r->link[1] = NULL;
- q->link[1] = r;
- }
-
- /* C3. */
- q->color = p->color;
- if (copy == NULL)
- q->data = p->data;
- else
- q->data = copy (p->data, tree->param);
- }
-}
-
-/* Walk tree TREE in inorder, calling WALK_FUNC at each node. Passes
- PARAM to WALK_FUNC. */
-void
-rb_walk (const rb_tree *tree, avl_node_func walk_func, void *param)
-{
- /* Uses Knuth's algorithm 2.3.1T (inorder traversal). */
- assert (tree && walk_func);
-
- {
- /* T1. */
- const rb_node *an[RB_MAX_HEIGHT]; /* Stack A: nodes. */
- const rb_node **ap = an; /* Stack A: stack pointer. */
- const rb_node *p = tree->root.link[0];
-
- for (;;)
- {
- /* T2. */
- while (p != NULL)
- {
- /* T3. */
- *ap++ = p;
- p = p->link[0];
- }
-
- /* T4. */
- if (ap == an)
- return;
- p = *--ap;
-
- /* T5. */
- walk_func (p->data, param);
- p = p->link[1];
- }
- }
-}
-
-/* Each call to this function for a given TREE and TRAV return the
- next item in the tree in inorder. Initialize the first element of
- TRAV (init) to 0 before calling the first time. Returns NULL when
- out of elements. */
-void *
-rb_traverse (const rb_tree *tree, rb_traverser *trav)
-{
- assert (tree && trav);
-
- /* Uses Knuth's algorithm 2.3.1T (inorder traversal). */
- if (trav->init == 0)
- {
- /* T1. */
- trav->init = 1;
- trav->nstack = 0;
- trav->p = tree->root.link[0];
- }
- else
- /* T5. */
- trav->p = trav->p->link[1];
-
- for (;;)
- {
- /* T2. */
- while (trav->p != NULL)
- {
- /* T3. */
- trav->stack[trav->nstack++] = trav->p;
- trav->p = trav->p->link[0];
- }
-
- /* T4. */
- if (trav->nstack == 0)
- {
- trav->init = 0;
- return NULL;
- }
- trav->p = trav->stack[--trav->nstack];
-
- /* T5. */
- return trav->p->data;
- }
-}
-
-/* Search TREE for an item matching ITEM. If found, returns a pointer
- to the address of the item. If none is found, ITEM is inserted
- into the tree, and a pointer to the address of ITEM is returned.
- In either case, the pointer returned can be changed by the caller,
- or the returned data item can be directly edited, but the key data
- in the item must not be changed. */
-void **
-rb_probe (rb_tree *tree, void *item)
-{
- /* Algorithm based on RB-Insert from section 14.3 of _Introduction
- to Algorithms_, Cormen et al., MIT Press 1990, ISBN
- 0-262-03141-8. */
-
- rb_node *ap[RB_MAX_HEIGHT]; /* Stack A: Nodes. */
- char ad[RB_MAX_HEIGHT]; /* Stack A: Directions. */
- int ak = 1; /* Stack A: Pointer. */
-
- rb_node *t, *x, *y, *n;
-
- assert (tree != NULL);
- t = &tree->root;
- x = t->link[0];
-
- if (x == NULL)
- {
- tree->count++;
- assert (tree->count == 1);
- x = t->link[0] = xmalloc (sizeof (rb_node));
- x->data = item;
- x->link[0] = x->link[1] = NULL;
- x->color = RB_BLACK;
- return &x->data;
- }
-
- ad[0] = 0;
- ap[0] = &tree->root;
-
- for (;;)
- {
- int diff = tree->cmp (item, x->data, tree->param);
-
- if (diff < 0)
- {
- ap[ak] = x;
- ad[ak++] = 0;
- y = x->link[0];
- if (y == NULL)
- {
- n = x = x->link[0] = xmalloc (sizeof (rb_node));
- break;
- }
- }
- else if (diff > 0)
- {
- ap[ak] = x;
- ad[ak++] = 1;
- y = x->link[1];
- if (y == NULL)
- {
- n = x = x->link[1] = xmalloc (sizeof (rb_node));
- break;
- }
- }
- else
- return &x->data;
-
- x = y;
- }
-
- tree->count++;
- x->data = item;
- x->link[0] = x->link[1] = NULL;
- x->color = RB_RED;
-
- for (;;)
- {
- if (ak < 3 || ap[ak - 1]->color != RB_RED)
- break;
-
- if (ad[ak - 2] == 0)
- {
- y = ap[ak - 2]->link[1];
- if (y != NULL && y->color == RB_RED)
- {
- /* Case 1. */
- ap[ak - 1]->color = y->color = RB_BLACK;
- ap[ak - 2]->color = RB_RED;
- ak -= 2;
- }
- else
- {
- if (ad[ak - 1] == 1)
- {
- /* Case 2. */
- x = ap[ak - 1];
- y = x->link[1];
- x->link[1] = y->link[0];
- y->link[0] = x;
- ap[ak - 2]->link[0] = y;
- }
- else
- y = ap[ak - 1];
-
- /* Case 3. */
- x = ap[ak - 2];
- x->color = RB_RED;
- y->color = RB_BLACK;
-
- x->link[0] = y->link[1];
- y->link[1] = x;
- ap[ak - 3]->link[(int) ad[ak - 3]] = y;
-
- break;
- }
- }
- else
- {
- y = ap[ak - 2]->link[0];
- if (y != NULL && y->color == RB_RED)
- {
- /* Case 1. */
- ap[ak - 1]->color = y->color = RB_BLACK;
- ap[ak - 2]->color = RB_RED;
- ak -= 2;
- }
- else
- {
- if (ad[ak - 1] == 0)
- {
- /* Case 2. */
- x = ap[ak - 1];
- y = x->link[0];
- x->link[0] = y->link[1];
- y->link[1] = x;
- ap[ak - 2]->link[1] = y;
- }
- else
- y = ap[ak - 1];
-
- /* Case 3. */
- x = ap[ak - 2];
- x->color = RB_RED;
- y->color = RB_BLACK;
-
- x->link[1] = y->link[0];
- y->link[0] = x;
- ap[ak - 3]->link[(int) ad[ak - 3]] = y;
- break;
- }
- }
- }
-
- tree->root.link[0]->color = RB_BLACK;
-
- return &n->data;
-}
-
-/* Search TREE for an item matching ITEM, and return it if found. */
-void *
-rb_find (const rb_tree *tree, const void *item)
-{
- const rb_node *p;
-
- assert (tree != NULL);
- for (p = tree->root.link[0]; p; )
- {
- int diff = tree->cmp (item, p->data, tree->param);
-
- if (diff < 0)
- p = p->link[0];
- else if (diff > 0)
- p = p->link[1];
- else
- return p->data;
- }
-
- return NULL;
-}
-
-/* Search TREE for an item close to the value of ITEM, and return it.
- This function will return a null pointer only if TREE is empty. */
-void *
-rb_find_close (const rb_tree *tree, const void *item)
-{
- const rb_node *p;
-
- assert (tree != NULL);
- p = tree->root.link[0];
- if (p == NULL)
- return NULL;
-
- for (;;)
- {
- int diff = tree->cmp (item, p->data, tree->param);
- int t;
-
- if (diff < 0)
- t = 0;
- else if (diff > 0)
- t = 1;
- else
- return p->data;
-
- if (p->link[t])
- p = p->link[t];
- else
- return p->data;
- }
-}
-
-/* Searches red-black tree TREE for an item matching ITEM. If found,
- the item is removed from the tree and the actual item found is
- returned to the caller. If no item matching ITEM exists in the
- tree, returns NULL. */
-void *
-rb_delete (rb_tree *tree, const void *item)
-{
- /* Algorithm based on RB-Delete and RB-Delete-Fixup from section
- 14.4 of _Introduction to Algorithms_, Cormen et al., MIT Press
- 1990, ISBN 0-262-03141-8. */
-
- rb_node *pa[RB_MAX_HEIGHT]; /* Stack P: Nodes. */
- char a[RB_MAX_HEIGHT]; /* Stack P: Bits. */
- int k = 1; /* Stack P: Pointer. */
-
- rb_node *w, *x, *y, *z;
-
- assert (tree != NULL);
-
- a[0] = 0;
- pa[0] = &tree->root;
- z = tree->root.link[0];
- for (;;)
- {
- int diff;
-
- if (z == NULL)
- return NULL;
-
- diff = tree->cmp (item, z->data, tree->param);
- if (diff == 0)
- break;
-
- pa[k] = z;
- if (diff < 0)
- {
- z = z->link[0];
- a[k] = 0;
- }
- else if (diff > 0)
- {
- z = z->link[1];
- a[k] = 1;
- }
- k++;
- }
- tree->count--;
-
- item = z->data;
-
- /* RB-Delete: Line 1. */
- if (z->link[0] == NULL || z->link[1] == NULL)
- {
- /* Line 2. */
- y = z;
-
- /* Lines 4-6. */
- if (y->link[0] != NULL)
- x = y->link[0];
- else
- x = y->link[1];
-
- pa[k - 1]->link[(int) a[k - 1]] = x;
- }
- else
- {
- pa[k] = z;
- a[k++] = 1;
-
- /* Line 3. */
- y = z->link[1];
- while (y->link[0])
- {
- pa[k] = y;
- a[k++] = 0;
- y = y->link[0];
- }
-
- /* Lines 4-6. */
- x = y->link[1];
-
- /* Lines 13-15. */
- z->data = y->data;
- pa[k - 1]->link[(int) a[k - 1]] = x;
- }
-
- /* Line 16. */
- if (y->color == RB_RED)
- {
- free (y);
- return (void *) item;
- }
-
- free (y);
-
- /* Numbers below are line numbers from RB-Delete-Fixup. */
- while (k > 1 && (x == NULL || x->color == RB_BLACK)) /* 1 */
- {
- if (a[k - 1] == 0) /* 2 */
- {
- w = pa[k - 1]->link[1]; /* 3 */
-
- if (w->color == RB_RED) /* 4 */
- {
- /* Case 1. */
- w->color = RB_BLACK; /* 5 */
- pa[k - 1]->color = RB_RED; /* 6 */
-
- pa[k - 1]->link[1] = w->link[0]; /* 7 */
- w->link[0] = pa[k - 1];
- pa[k - 2]->link[(int) a[k - 2]] = w;
-
- pa[k] = pa[k - 1];
- a[k] = 0;
- pa[k - 1] = w;
- k++;
-
- w = pa[k - 1]->link[1]; /* 8 */
- }
-
- if ((w->link[0] == NULL || w->link[0]->color == RB_BLACK) /* 9 */
- && (w->link[1] == NULL || w->link[1]->color == RB_BLACK))
- {
- /* Case 2. */
- w->color = RB_RED; /* 10 */
-
- x = pa[k - 1]; /* 11 */
- k--;
- }
- else
- {
- if (w->link[1] == NULL || w->link[1]->color == RB_BLACK) /* 12 */
- {
- /* Case 3. */
- w->link[0]->color = RB_BLACK; /* 13 */
- w->color = RB_RED; /* 14 */
-
- y = w->link[0]; /* 15 */
- w->link[0] = y->link[1];
- y->link[1] = w;
-
- w = pa[k - 1]->link[1] = y; /* 16 */
- }
-
- /* Case 4. */
- w->color = pa[k - 1]->color; /* 17 */
- pa[k - 1]->color = RB_BLACK; /* 18 */
- w->link[1]->color = RB_BLACK; /* 19 */
-
- pa[k - 1]->link[1] = w->link[0]; /* 20 */
- w->link[0] = pa[k - 1];
- pa[k - 2]->link[(int) a[k - 2]] = w;
-
- x = tree->root.link[0]; /* 21 */
- break;
- }
- }
- else
- {
- w = pa[k - 1]->link[0];
- if (w->color == RB_RED)
- {
- /* Case 1. */
- w->color = RB_BLACK;
- pa[k - 1]->color = RB_RED;
-
- pa[k - 1]->link[0] = w->link[1];
- w->link[1] = pa[k - 1];
- pa[k - 2]->link[(int) a[k - 2]] = w;
-
- pa[k] = pa[k - 1];
- a[k] = 1;
- pa[k - 1] = w;
- k++;
-
- w = pa[k - 1]->link[0];
- }
-
- if ((w->link[0] == NULL || w->link[0]->color == RB_BLACK)
- && (w->link[1] == NULL || w->link[1]->color == RB_BLACK))
- {
- /* Case 2. */
- w->color = RB_RED;
- x = pa[k - 1];
- k--;
- }
- else
- {
- if (w->link[0] == NULL || w->link[0]->color == RB_BLACK)
- {
- /* Case 3. */
- w->link[1]->color = RB_BLACK;
- w->color = RB_RED;
-
- y = w->link[1];
- w->link[1] = y->link[0];
- y->link[0] = w;
-
- w = pa[k - 1]->link[0] = y;
- }
-
- /* Case 4. */
- w->color = pa[k - 1]->color;
- pa[k - 1]->color = RB_BLACK;
- w->link[0]->color = RB_BLACK;
-
- pa[k - 1]->link[0] = w->link[1];
- w->link[1] = pa[k - 1];
- pa[k - 2]->link[(int) a[k - 2]] = w;
-
- x = tree->root.link[0];
- break;
- }
- }
- }
-
- if (x != NULL)
- x->color = RB_BLACK; /* 23 */
-
- return (void *) item;
-}
-
-/* Inserts ITEM into TREE. Returns NULL if the item was inserted,
- otherwise a pointer to the duplicate item. */
-void *
-rb_insert (rb_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = rb_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-/* If ITEM does not exist in TREE, inserts it and returns NULL. If a
- matching item does exist, it is replaced by ITEM and the item
- replaced is returned. The caller is responsible for freeing the
- item returned. */
-void *
-rb_replace (rb_tree *tree, void *item)
-{
- void **p;
-
- assert (tree != NULL);
-
- p = rb_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-
-/* Delete ITEM from TREE when you know that ITEM must be in TREE. For
- debugging purposes. */
-void *
-(rb_force_delete) (rb_tree *tree, void *item)
-{
- void *found = rb_delete (tree, item);
- assert (found != NULL);
- return found;
-}
-
-#if SELF_TEST
-
-/* Used to flag delayed aborting. */
-int done = 0;
-
-/* Print the structure of node NODE of a red-black tree, which is
- LEVEL levels from the top of the tree. Uses different delimiters
- to visually distinguish levels. */
-void
-print_structure (rb_node *node, int level)
-{
- char lc[] = "([{<`/";
- char rc[] = ")]}>'\\";
-
- assert (level <= 10);
-
- if (node == NULL)
- {
- printf (" nil");
- fflush (stdout);
- return;
- }
- printf (" %c%d%c",
- lc[level % 6], (int) node->data,
- node->color == RB_BLACK ? 'b' : 'r');
- fflush (stdout);
- if (node->link[0] || node->link[1])
- print_structure (node->link[0], level + 1);
- if (node->link[1])
- print_structure (node->link[1], level + 1);
- printf ("%c", rc[level % 6]);
- fflush (stdout);
-}
-
-/* Compare two integers A and B and return a strcmp()-type result. */
-int
-compare_ints (const void *a, const void *b, void *param unused)
-{
- return ((int) a) - ((int) b);
-}
-
-/* Print the value of integer A. */
-void
-print_int (void *a, void *param unused)
-{
- printf (" %d", (int) a);
-}
-
-/* Linearly print contents of TREE. */
-void
-print_contents (rb_tree *tree)
-{
- rb_walk (tree, print_int, NULL);
- printf ("\n");
-}
-
-/* Examine NODE in a red-black tree. *COUNT is increased by the
- number of nodes in the tree, including the current one. Returns
- the number of black nodes (including this node) in a path from this
- node to any leaf. */
-int
-recurse_tree (rb_node *node, int *count, int ge, int le)
-{
- if (node)
- {
- const int d = (int) node->data;
- int nl = 1;
- int nr = 1;
-
- (*count)++;
-
- if (!(d >= ge) || !(d <= le))
- {
- printf (" Node %d is out of order in the tree.\n", d);
- done = 1;
- }
-
- if (node->link[0])
- nl = recurse_tree (node->link[0], count, ge, d - 1);
- if (node->link[1])
- nr = recurse_tree (node->link[1], count, d + 1, le);
-
- if (node->color != RB_RED && node->color != RB_BLACK)
- {
- printf (" Node %d is neither red nor black (%d).\n", d, node->color);
- done = 1;
- }
-
- if (node->color == RB_RED
- && node->link[0] && node->link[0]->color == RB_RED)
- {
- printf (" Red node %d has red left child %d\n",
- d, (int) node->link[0]->data);
- done = 1;
- }
-
- if (node->color == RB_RED
- && node->link[1] && node->link[1]->color == RB_RED)
- {
- printf (" Red node %d has red right child %d\n",
- d, (int) node->link[1]->data);
- done = 1;
- }
-
- if (nl != nr)
- {
- printf (" Node %d has two different black-heights: left bh=%d, "
- "right bh=%d\n", d, nl, nr);
- done = 1;
- }
-
- return (node->color == RB_BLACK) + nl;
- }
- else return 1;
-}
-
-/* Check that everything about TREE is kosher. */
-void
-verify_tree (rb_tree *tree)
-{
- int count = 0;
- recurse_tree (tree->root.link[0], &count, INT_MIN, INT_MAX);
- if (count != tree->count)
- {
- printf (" Tree has %d nodes, but tree count is %d.\n",
- count, tree->count);
- done = 1;
- }
- if (done)
- abort ();
-}
-
-/* Arrange the N elements of ARRAY in random order. */
-void
-shuffle (int *array, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j = i + rand () % (n - i);
- int t = array[j];
- array[j] = array[i];
- array[i] = t;
- }
-}
-
-/* Compares red-black trees rooted at A and B, making sure that they
- are identical. */
-void
-compare_trees (rb_node *a, rb_node *b)
-{
- if (a == NULL || b == NULL)
- {
- assert (a == NULL && b == NULL);
- return;
- }
- if (a->data != b->data || a->color != b->color
- || ((a->link[0] != NULL) ^ (b->link[0] != NULL))
- || ((a->link[1] != NULL) ^ (b->link[1] != NULL)))
- {
- printf (" Copied nodes differ: %d b=%d a->color=%d b->color=%d a:",
- (int) a->data, (int) b->data, a->color, b->color);
- if (a->link[0])
- printf ("l");
- if (a->link[1])
- printf ("r");
- printf (" b:");
- if (b->link[0])
- printf ("l");
- if (b->link[1])
- printf ("r");
- printf ("\n");
- abort ();
- }
- if (a->link[0] != NULL)
- compare_trees (a->link[0], b->link[0]);
- if (a->link[1] != NULL)
- compare_trees (a->link[1], b->link[1]);
-}
-
-/* Simple stress test procedure for the red-black tree routines. Does
- the following:
-
- * Generate a random number seed. By default this is generated from
- the current time. You can also pass a seed value on the command
- line if you want to test the same case. The seed value is
- displayed.
-
- * Create a tree and insert the integers from 0 up to TREE_SIZE - 1
- into it, in random order. Verify the tree structure after each
- insertion.
-
- * Remove each integer from the tree, in a different random order.
- After each deletion, verify the tree structure; also, make a copy
- of the tree into a new tree, verify the copy and compare it to the
- original, then destroy the copy.
-
- * Destroy the tree, increment the random seed value, and start over.
-
- If you make any modifications to the red-black tree routines, then
- you might want to insert some calls to print_structure() at
- strategic places in order to be able to see what's really going on.
- Also, memory debuggers like Checker or Purify are very handy. */
-#define TREE_SIZE 16
-#define N_ITERATIONS 1024
-int
-main (int argc, char **argv)
-{
- int array[TREE_SIZE];
- int seed;
- int iteration;
-
- if (argc == 2)
- seed = atoi (argv[1]);
- else
- seed = time (0) * 257 % 32768;
-
- fputs ("Testing rb...\n", stdout);
-
- for (iteration = 1; iteration <= N_ITERATIONS; iteration++)
- {
- rb_tree *tree;
- int i;
-
- printf ("Iteration %4d/%4d: seed=%5d", iteration, N_ITERATIONS, seed);
- fflush (stdout);
-
- srand (seed++);
-
- for (i = 0; i < TREE_SIZE; i++)
- array[i] = i;
- shuffle (array, TREE_SIZE);
-
- tree = rb_create (compare_ints, NULL);
- for (i = 0; i < TREE_SIZE; i++)
- rb_force_insert (tree, (void *) (array[i]));
- verify_tree (tree);
-
- shuffle (array, TREE_SIZE);
- for (i = 0; i < TREE_SIZE; i++)
- {
- rb_tree *copy;
-
- rb_delete (tree, (void *) (array[i]));
- verify_tree (tree);
-
- copy = rb_copy (tree, NULL);
- verify_tree (copy);
- compare_trees (tree->root.link[0], copy->root.link[0]);
- rb_destroy (copy, NULL);
-
- if (i % 128 == 0)
- {
- putchar ('.');
- fflush (stdout);
- }
- }
- fputs (" good.\n", stdout);
-
- rb_destroy (tree, NULL);
- }
-
- return 0;
-}
-#endif /* SELF_TEST */
-
-/*
- Local variables:
- compile-command: "gcc -DSELF_TEST=1 -W -Wall -I. -o ./rb-test rb.c"
- End:
-*/
diff --git a/avl-1.4.0/rb.h b/avl-1.4.0/rb.h
deleted file mode 100644
index 26a9f49..0000000
--- a/avl-1.4.0/rb.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file rb.h in libavl. */
-
-#if !rb_h
-#define rb_h 1
-
-/* The default maximum height of 32 allows for red-black trees having
- between 65,535 and 4,294,967,295 nodes, depending on order of
- insertion. You may change this compile-time constant as you
- wish. */
-#ifndef RB_MAX_HEIGHT
-#define RB_MAX_HEIGHT 32
-#endif
-
-/* Node colors. */
-enum
- {
- RB_BLACK,
- RB_RED,
- };
-
-/* Structure for a node in a red-black tree. */
-typedef struct rb_node
- {
- void *data; /* Pointer to data. */
- struct rb_node *link[2]; /* Subtrees. */
- signed char color; /* Color. */
- char cache; /* Used during insertion. */
- signed char pad[2]; /* Unused. Reserved for threaded trees. */
- }
-rb_node;
-
-/* Used for traversing a red-black tree. */
-typedef struct rb_traverser
- {
- int init; /* Initialized? */
- int nstack; /* Top of stack. */
- const rb_node *p; /* Used for traversal. */
- const rb_node *stack[RB_MAX_HEIGHT];/* Descended trees. */
- }
-rb_traverser;
-
-/* Initializer for rb_traverser. */
-#define RB_TRAVERSER_INIT {0}
-
-/* Function types. */
-#if !AVL_FUNC_TYPES
-#define AVL_FUNC_TYPES 1
-typedef int (*avl_comparison_func) (const void *a, const void *b, void *param);
-typedef void (*avl_node_func) (void *data, void *param);
-typedef void *(*avl_copy_func) (void *data, void *param);
-#endif
-
-/* Structure which holds information about a red-black tree. */
-typedef struct rb_tree
- {
-#if PSPP
- struct arena **owner; /* Arena to store nodes. */
-#endif
- rb_node root; /* Tree root node. */
- avl_comparison_func cmp; /* Used to compare keys. */
- int count; /* Number of nodes in the tree. */
- void *param; /* Arbitary user data. */
- }
-rb_tree;
-
-#if PSPP
-#define MAYBE_ARENA struct arena **owner,
-#else
-#define MAYBE_ARENA /* nothing */
-#endif
-
-/* General functions. */
-rb_tree *rb_create (MAYBE_ARENA avl_comparison_func, void *param);
-void rb_destroy (rb_tree *, avl_node_func);
-void rb_free (rb_tree *);
-int rb_count (const rb_tree *);
-rb_tree *rb_copy (MAYBE_ARENA const rb_tree *, avl_copy_func);
-
-/* Walk the tree. */
-void rb_walk (const rb_tree *, avl_node_func, void *param);
-void *rb_traverse (const rb_tree *, rb_traverser *);
-#define rb_init_traverser(TRAVERSER) ((TRAVERSER)->init = 0)
-
-/* Search for a given item. */
-void **rb_probe (rb_tree *, void *);
-void *rb_delete (rb_tree *, const void *);
-void *rb_find (const rb_tree *, const void *);
-void *rb_find_close (const rb_tree *, const void *);
-
-#if __GCC__ >= 2
-extern inline void *
-rb_insert (rb_tree *tree, void *item)
-{
- void **p = rb_probe (tree, item);
- return (*p == item) ? NULL : *p;
-}
-
-extern inline void *
-rb_replace (rb_tree *tree, void *item)
-{
- void **p = rb_probe (tree, item);
- if (*p == item)
- return NULL;
- else
- {
- void *r = *p;
- *p = item;
- return r;
- }
-}
-#else /* not gcc */
-void *rb_insert (rb_tree *tree, void *item);
-void *rb_replace (rb_tree *tree, void *item);
-#endif /* not gcc */
-
-/* Easy assertions on insertion & deletion. */
-#ifndef NDEBUG
-#define rb_force_insert(A, B) \
- do \
- { \
- void *r = rb_insert (A, B); \
- assert (r == NULL); \
- } \
- while (0)
-void *rb_force_delete (rb_tree *, void *);
-#else
-#define rb_force_insert(A, B) \
- rb_insert (A, B)
-#define rb_force_delete(A, B) \
- rb_delete (A, B)
-#endif
-
-#endif /* rb_h */
diff --git a/avl-1.4.0/texinfo.tex b/avl-1.4.0/texinfo.tex
deleted file mode 100644
index aa52853..0000000
--- a/avl-1.4.0/texinfo.tex
+++ /dev/null
@@ -1,5484 +0,0 @@
-% texinfo.tex -- TeX macros to handle Texinfo files.
-%
-% Load plain if necessary, i.e., if running under initex.
-\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
-%
-\def\texinfoversion{1999-01-05}%
-%
-% Copyright (C) 1985, 86, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98
-% Free Software Foundation, Inc.
-%
-% This texinfo.tex file is free software; you can redistribute it and/or
-% modify it under the terms of the GNU General Public License as
-% published by the Free Software Foundation; either version 2, or (at
-% your option) any later version.
-%
-% This texinfo.tex file is distributed in the hope that it will be
-% useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-% of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-% General Public License for more details.
-%
-% You should have received a copy of the GNU General Public License
-% along with this texinfo.tex file; see the file COPYING. If not, write
-% to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-% Boston, MA 02111-1307, USA.
-%
-% In other words, you are welcome to use, share and improve this program.
-% You are forbidden to forbid anyone else to use, share and improve
-% what you give them. Help stamp out software-hoarding!
-%
-% Please try the latest version of texinfo.tex before submitting bug
-% reports; you can get the latest version from:
-% ftp://ftp.gnu.org/pub/gnu/texinfo.tex
-% /home/gd/gnu/doc/texinfo.tex on the GNU machines.
-% (and all GNU mirrors, see http://www.gnu.org/order/ftp.html)
-% ftp://tug.org/tex/texinfo.tex
-% ftp://ctan.org/macros/texinfo/texinfo.tex
-% (and all CTAN mirrors, finger ctan@ctan.org for a list).
-% The texinfo.tex in the texinfo distribution itself could well be out
-% of date, so if that's what you're using, please check.
-%
-% Send bug reports to bug-texinfo@gnu.org.
-% Please include a precise test case in each bug report,
-% including a complete document with which we can reproduce the problem.
-%
-% To process a Texinfo manual with TeX, it's most reliable to use the
-% texi2dvi shell script that comes with the distribution. For simple
-% manuals, however, you can get away with:
-% tex foo.texi
-% texindex foo.??
-% tex foo.texi
-% tex foo.texi
-% dvips foo.dvi -o # or whatever, to process the dvi file.
-% The extra runs of TeX get the cross-reference information correct.
-% Sometimes one run after texindex suffices, and sometimes you need more
-% than two; texi2dvi does it as many times as necessary.
-
-\message{Loading texinfo [version \texinfoversion]:}
-
-% If in a .fmt file, print the version number
-% and turn on active characters that we couldn't do earlier because
-% they might have appeared in the input file name.
-\everyjob{\message{[Texinfo version \texinfoversion]}%
- \catcode`+=\active \catcode`\_=\active}
-
-% Save some parts of plain tex whose names we will redefine.
-
-\let\ptexb=\b
-\let\ptexbullet=\bullet
-\let\ptexc=\c
-\let\ptexcomma=\,
-\let\ptexdot=\.
-\let\ptexdots=\dots
-\let\ptexend=\end
-\let\ptexequiv=\equiv
-\let\ptexexclam=\!
-\let\ptexi=\i
-\let\ptexlbrace=\{
-\let\ptexrbrace=\}
-\let\ptexstar=\*
-\let\ptext=\t
-
-% We never want plain's outer \+ definition in Texinfo.
-% For @tex, we can use \tabalign.
-\let\+ = \relax
-
-
-\message{Basics,}
-\chardef\other=12
-
-% If this character appears in an error message or help string, it
-% starts a new line in the output.
-\newlinechar = `^^J
-
-% Set up fixed words for English if not already set.
-\ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi
-\ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi
-\ifx\putwordfile\undefined \gdef\putwordfile{file}\fi
-\ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi
-\ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi
-\ifx\putwordon\undefined \gdef\putwordon{on}\fi
-\ifx\putwordpage\undefined \gdef\putwordpage{page}\fi
-\ifx\putwordsection\undefined \gdef\putwordsection{section}\fi
-\ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi
-\ifx\putwordsee\undefined \gdef\putwordsee{see}\fi
-\ifx\putwordSee\undefined \gdef\putwordSee{See}\fi
-\ifx\putwordShortContents\undefined \gdef\putwordShortContents{Short Contents}\fi
-\ifx\putwordTableofContents\undefined\gdef\putwordTableofContents{Table of Contents}\fi
-
-% Ignore a token.
-%
-\def\gobble#1{}
-
-\hyphenation{ap-pen-dix}
-\hyphenation{mini-buf-fer mini-buf-fers}
-\hyphenation{eshell}
-\hyphenation{white-space}
-
-% Margin to add to right of even pages, to left of odd pages.
-\newdimen \bindingoffset
-\newdimen \normaloffset
-\newdimen\pagewidth \newdimen\pageheight
-
-% Sometimes it is convenient to have everything in the transcript file
-% and nothing on the terminal. We don't just call \tracingall here,
-% since that produces some useless output on the terminal.
-%
-\def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
-\ifx\eTeXversion\undefined
-\def\loggingall{\tracingcommands2 \tracingstats2
- \tracingpages1 \tracingoutput1 \tracinglostchars1
- \tracingmacros2 \tracingparagraphs1 \tracingrestores1
- \showboxbreadth\maxdimen\showboxdepth\maxdimen
-}%
-\else
-\def\loggingall{\tracingcommands3 \tracingstats2
- \tracingpages1 \tracingoutput1 \tracinglostchars1
- \tracingmacros2 \tracingparagraphs1 \tracingrestores1
- \tracingscantokens1 \tracingassigns1 \tracingifs1
- \tracinggroups1 \tracingnesting2
- \showboxbreadth\maxdimen\showboxdepth\maxdimen
-}%
-\fi
-
-% For @cropmarks command.
-% Do @cropmarks to get crop marks.
-%
-\newif\ifcropmarks
-\let\cropmarks = \cropmarkstrue
-%
-% Dimensions to add cropmarks at corners.
-% Added by P. A. MacKay, 12 Nov. 1986
-%
-\newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
-\newdimen\cornerlong \cornerlong=1pc
-\newdimen\cornerthick \cornerthick=.3pt
-\newdimen\topandbottommargin \topandbottommargin=.75in
-
-% Main output routine.
-\chardef\PAGE = 255
-\output = {\onepageout{\pagecontents\PAGE}}
-
-\newbox\headlinebox
-\newbox\footlinebox
-
-% \onepageout takes a vbox as an argument. Note that \pagecontents
-% does insertions, but you have to call it yourself.
-\def\onepageout#1{%
- \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
- %
- \ifodd\pageno \advance\hoffset by \bindingoffset
- \else \advance\hoffset by -\bindingoffset\fi
- %
- % Do this outside of the \shipout so @code etc. will be expanded in
- % the headline as they should be, not taken literally (outputting ''code).
- \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
- \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
- %
- {%
- % Have to do this stuff outside the \shipout because we want it to
- % take effect in \write's, yet the group defined by the \vbox ends
- % before the \shipout runs.
- %
- \escapechar = `\\ % use backslash in output files.
- \indexdummies % don't expand commands in the output.
- \normalturnoffactive % \ in index entries must not stay \, e.g., if
- % the page break happens to be in the middle of an example.
- \shipout\vbox{%
- \ifcropmarks \vbox to \outervsize\bgroup
- \hsize = \outerhsize
- \vskip-\topandbottommargin
- \vtop to0pt{%
- \line{\ewtop\hfil\ewtop}%
- \nointerlineskip
- \line{%
- \vbox{\moveleft\cornerthick\nstop}%
- \hfill
- \vbox{\moveright\cornerthick\nstop}%
- }%
- \vss}%
- \vskip\topandbottommargin
- \line\bgroup
- \hfil % center the page within the outer (page) hsize.
- \ifodd\pageno\hskip\bindingoffset\fi
- \vbox\bgroup
- \fi
- %
- \unvbox\headlinebox
- \pagebody{#1}%
- \ifdim\ht\footlinebox > 0pt
- % Only leave this space if the footline is nonempty.
- % (We lessened \vsize for it in \oddfootingxxx.)
- % The \baselineskip=24pt in plain's \makefootline has no effect.
- \vskip 2\baselineskip
- \unvbox\footlinebox
- \fi
- %
- \ifcropmarks
- \egroup % end of \vbox\bgroup
- \hfil\egroup % end of (centering) \line\bgroup
- \vskip\topandbottommargin plus1fill minus1fill
- \boxmaxdepth = \cornerthick
- \vbox to0pt{\vss
- \line{%
- \vbox{\moveleft\cornerthick\nsbot}%
- \hfill
- \vbox{\moveright\cornerthick\nsbot}%
- }%
- \nointerlineskip
- \line{\ewbot\hfil\ewbot}%
- }%
- \egroup % \vbox from first cropmarks clause
- \fi
- }% end of \shipout\vbox
- }% end of group with \turnoffactive
- \advancepageno
- \ifnum\outputpenalty>-20000 \else\dosupereject\fi
-}
-
-\newinsert\margin \dimen\margin=\maxdimen
-
-\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
-{\catcode`\@ =11
-\gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
-% marginal hacks, juha@viisa.uucp (Juha Takala)
-\ifvoid\margin\else % marginal info is present
- \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
-\dimen@=\dp#1 \unvbox#1
-\ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
-\ifr@ggedbottom \kern-\dimen@ \vfil \fi}
-}
-
-% Here are the rules for the cropmarks. Note that they are
-% offset so that the space between them is truly \outerhsize or \outervsize
-% (P. A. MacKay, 12 November, 1986)
-%
-\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
-\def\nstop{\vbox
- {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
-\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
-\def\nsbot{\vbox
- {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
-
-% Parse an argument, then pass it to #1. The argument is the rest of
-% the input line (except we remove a trailing comment). #1 should be a
-% macro which expects an ordinary undelimited TeX argument.
-%
-\def\parsearg#1{%
- \let\next = #1%
- \begingroup
- \obeylines
- \futurelet\temp\parseargx
-}
-
-% If the next token is an obeyed space (from an @example environment or
-% the like), remove it and recurse. Otherwise, we're done.
-\def\parseargx{%
- % \obeyedspace is defined far below, after the definition of \sepspaces.
- \ifx\obeyedspace\temp
- \expandafter\parseargdiscardspace
- \else
- \expandafter\parseargline
- \fi
-}
-
-% Remove a single space (as the delimiter token to the macro call).
-{\obeyspaces %
- \gdef\parseargdiscardspace {\futurelet\temp\parseargx}}
-
-{\obeylines %
- \gdef\parseargline#1^^M{%
- \endgroup % End of the group started in \parsearg.
- %
- % First remove any @c comment, then any @comment.
- % Result of each macro is put in \toks0.
- \argremovec #1\c\relax %
- \expandafter\argremovecomment \the\toks0 \comment\relax %
- %
- % Call the caller's macro, saved as \next in \parsearg.
- \expandafter\next\expandafter{\the\toks0}%
- }%
-}
-
-% Since all \c{,omment} does is throw away the argument, we can let TeX
-% do that for us. The \relax here is matched by the \relax in the call
-% in \parseargline; it could be more or less anything, its purpose is
-% just to delimit the argument to the \c.
-\def\argremovec#1\c#2\relax{\toks0 = {#1}}
-\def\argremovecomment#1\comment#2\relax{\toks0 = {#1}}
-
-% \argremovec{,omment} might leave us with trailing spaces, though; e.g.,
-% @end itemize @c foo
-% will have two active spaces as part of the argument with the
-% `itemize'. Here we remove all active spaces from #1, and assign the
-% result to \toks0.
-%
-% This loses if there are any *other* active characters besides spaces
-% in the argument -- _ ^ +, for example -- since they get expanded.
-% Fortunately, Texinfo does not define any such commands. (If it ever
-% does, the catcode of the characters in questionwill have to be changed
-% here.) But this means we cannot call \removeactivespaces as part of
-% \argremovec{,omment}, since @c uses \parsearg, and thus the argument
-% that \parsearg gets might well have any character at all in it.
-%
-\def\removeactivespaces#1{%
- \begingroup
- \ignoreactivespaces
- \edef\temp{#1}%
- \global\toks0 = \expandafter{\temp}%
- \endgroup
-}
-
-% Change the active space to expand to nothing.
-%
-\begingroup
- \obeyspaces
- \gdef\ignoreactivespaces{\obeyspaces\let =\empty}
-\endgroup
-
-
-\def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
-
-%% These are used to keep @begin/@end levels from running away
-%% Call \inENV within environments (after a \begingroup)
-\newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
-\def\ENVcheck{%
-\ifENV\errmessage{Still within an environment; press RETURN to continue}
-\endgroup\fi} % This is not perfect, but it should reduce lossage
-
-% @begin foo is the same as @foo, for now.
-\newhelp\EMsimple{Press RETURN to continue.}
-
-\outer\def\begin{\parsearg\beginxxx}
-
-\def\beginxxx #1{%
-\expandafter\ifx\csname #1\endcsname\relax
-{\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
-\csname #1\endcsname\fi}
-
-% @end foo executes the definition of \Efoo.
-%
-\def\end{\parsearg\endxxx}
-\def\endxxx #1{%
- \removeactivespaces{#1}%
- \edef\endthing{\the\toks0}%
- %
- \expandafter\ifx\csname E\endthing\endcsname\relax
- \expandafter\ifx\csname \endthing\endcsname\relax
- % There's no \foo, i.e., no ``environment'' foo.
- \errhelp = \EMsimple
- \errmessage{Undefined command `@end \endthing'}%
- \else
- \unmatchedenderror\endthing
- \fi
- \else
- % Everything's ok; the right environment has been started.
- \csname E\endthing\endcsname
- \fi
-}
-
-% There is an environment #1, but it hasn't been started. Give an error.
-%
-\def\unmatchedenderror#1{%
- \errhelp = \EMsimple
- \errmessage{This `@end #1' doesn't have a matching `@#1'}%
-}
-
-% Define the control sequence \E#1 to give an unmatched @end error.
-%
-\def\defineunmatchedend#1{%
- \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}%
-}
-
-
-% Single-spacing is done by various environments (specifically, in
-% \nonfillstart and \quotations).
-\newskip\singlespaceskip \singlespaceskip = 12.5pt
-\def\singlespace{%
- % Why was this kern here? It messes up equalizing space above and below
- % environments. --karl, 6may93
- %{\advance \baselineskip by -\singlespaceskip
- %\kern \baselineskip}%
- \setleading \singlespaceskip
-}
-
-%% Simple single-character @ commands
-
-% @@ prints an @
-% Kludge this until the fonts are right (grr).
-\def\@{{\tt\char64}}
-
-% This is turned off because it was never documented
-% and you can use @w{...} around a quote to suppress ligatures.
-%% Define @` and @' to be the same as ` and '
-%% but suppressing ligatures.
-%\def\`{{`}}
-%\def\'{{'}}
-
-% Used to generate quoted braces.
-\def\mylbrace {{\tt\char123}}
-\def\myrbrace {{\tt\char125}}
-\let\{=\mylbrace
-\let\}=\myrbrace
-\begingroup
- % Definitions to produce actual \{ & \} command in an index.
- \catcode`\{ = 12 \catcode`\} = 12
- \catcode`\[ = 1 \catcode`\] = 2
- \catcode`\@ = 0 \catcode`\\ = 12
- @gdef@lbracecmd[\{]%
- @gdef@rbracecmd[\}]%
-@endgroup
-
-% Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
-% Others are defined by plain TeX: @` @' @" @^ @~ @= @v @H.
-\let\, = \c
-\let\dotaccent = \.
-\def\ringaccent#1{{\accent23 #1}}
-\let\tieaccent = \t
-\let\ubaraccent = \b
-\let\udotaccent = \d
-
-% Other special characters: @questiondown @exclamdown
-% Plain TeX defines: @AA @AE @O @OE @L (and lowercase versions) @ss.
-\def\questiondown{?`}
-\def\exclamdown{!`}
-
-% Dotless i and dotless j, used for accents.
-\def\imacro{i}
-\def\jmacro{j}
-\def\dotless#1{%
- \def\temp{#1}%
- \ifx\temp\imacro \ptexi
- \else\ifx\temp\jmacro \j
- \else \errmessage{@dotless can be used only with i or j}%
- \fi\fi
-}
-
-% Be sure we're in horizontal mode when doing a tie, since we make space
-% equivalent to this in @example-like environments. Otherwise, a space
-% at the beginning of a line will start with \penalty -- and
-% since \penalty is valid in vertical mode, we'd end up putting the
-% penalty on the vertical list instead of in the new paragraph.
-{\catcode`@ = 11
- % Avoid using \@M directly, because that causes trouble
- % if the definition is written into an index file.
- \global\let\tiepenalty = \@M
- \gdef\tie{\leavevmode\penalty\tiepenalty\ }
-}
-
-% @: forces normal size whitespace following.
-\def\:{\spacefactor=1000 }
-
-% @* forces a line break.
-\def\*{\hfil\break\hbox{}\ignorespaces}
-
-% @. is an end-of-sentence period.
-\def\.{.\spacefactor=3000 }
-
-% @! is an end-of-sentence bang.
-\def\!{!\spacefactor=3000 }
-
-% @? is an end-of-sentence query.
-\def\?{?\spacefactor=3000 }
-
-% @w prevents a word break. Without the \leavevmode, @w at the
-% beginning of a paragraph, when TeX is still in vertical mode, would
-% produce a whole line of output instead of starting the paragraph.
-\def\w#1{\leavevmode\hbox{#1}}
-
-% @group ... @end group forces ... to be all on one page, by enclosing
-% it in a TeX vbox. We use \vtop instead of \vbox to construct the box
-% to keep its height that of a normal line. According to the rules for
-% \topskip (p.114 of the TeXbook), the glue inserted is
-% max (\topskip - \ht (first item), 0). If that height is large,
-% therefore, no glue is inserted, and the space between the headline and
-% the text is small, which looks bad.
-%
-\def\group{\begingroup
- \ifnum\catcode13=\active \else
- \errhelp = \groupinvalidhelp
- \errmessage{@group invalid in context where filling is enabled}%
- \fi
- %
- % The \vtop we start below produces a box with normal height and large
- % depth; thus, TeX puts \baselineskip glue before it, and (when the
- % next line of text is done) \lineskip glue after it. (See p.82 of
- % the TeXbook.) Thus, space below is not quite equal to space
- % above. But it's pretty close.
- \def\Egroup{%
- \egroup % End the \vtop.
- \endgroup % End the \group.
- }%
- %
- \vtop\bgroup
- % We have to put a strut on the last line in case the @group is in
- % the midst of an example, rather than completely enclosing it.
- % Otherwise, the interline space between the last line of the group
- % and the first line afterwards is too small. But we can't put the
- % strut in \Egroup, since there it would be on a line by itself.
- % Hence this just inserts a strut at the beginning of each line.
- \everypar = {\strut}%
- %
- % Since we have a strut on every line, we don't need any of TeX's
- % normal interline spacing.
- \offinterlineskip
- %
- % OK, but now we have to do something about blank
- % lines in the input in @example-like environments, which normally
- % just turn into \lisppar, which will insert no space now that we've
- % turned off the interline space. Simplest is to make them be an
- % empty paragraph.
- \ifx\par\lisppar
- \edef\par{\leavevmode \par}%
- %
- % Reset ^^M's definition to new definition of \par.
- \obeylines
- \fi
- %
- % Do @comment since we are called inside an environment such as
- % @example, where each end-of-line in the input causes an
- % end-of-line in the output. We don't want the end-of-line after
- % the `@group' to put extra space in the output. Since @group
- % should appear on a line by itself (according to the Texinfo
- % manual), we don't worry about eating any user text.
- \comment
-}
-%
-% TeX puts in an \escapechar (i.e., `@') at the beginning of the help
-% message, so this ends up printing `@group can only ...'.
-%
-\newhelp\groupinvalidhelp{%
-group can only be used in environments such as @example,^^J%
-where each line of input produces a line of output.}
-
-% @need space-in-mils
-% forces a page break if there is not space-in-mils remaining.
-
-\newdimen\mil \mil=0.001in
-
-\def\need{\parsearg\needx}
-
-% Old definition--didn't work.
-%\def\needx #1{\par %
-%% This method tries to make TeX break the page naturally
-%% if the depth of the box does not fit.
-%{\baselineskip=0pt%
-%\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak
-%\prevdepth=-1000pt
-%}}
-
-\def\needx#1{%
- % Go into vertical mode, so we don't make a big box in the middle of a
- % paragraph.
- \par
- %
- % Don't add any leading before our big empty box, but allow a page
- % break, since the best break might be right here.
- \allowbreak
- \nointerlineskip
- \vtop to #1\mil{\vfil}%
- %
- % TeX does not even consider page breaks if a penalty added to the
- % main vertical list is 10000 or more. But in order to see if the
- % empty box we just added fits on the page, we must make it consider
- % page breaks. On the other hand, we don't want to actually break the
- % page after the empty box. So we use a penalty of 9999.
- %
- % There is an extremely small chance that TeX will actually break the
- % page at this \penalty, if there are no other feasible breakpoints in
- % sight. (If the user is using lots of big @group commands, which
- % almost-but-not-quite fill up a page, TeX will have a hard time doing
- % good page breaking, for example.) However, I could not construct an
- % example where a page broke at this \penalty; if it happens in a real
- % document, then we can reconsider our strategy.
- \penalty9999
- %
- % Back up by the size of the box, whether we did a page break or not.
- \kern -#1\mil
- %
- % Do not allow a page break right after this kern.
- \nobreak
-}
-
-% @br forces paragraph break
-
-\let\br = \par
-
-% @dots{} output an ellipsis using the current font.
-% We do .5em per period so that it has the same spacing in a typewriter
-% font as three actual period characters.
-%
-\def\dots{%
- \leavevmode
- \hbox to 1.5em{%
- \hskip 0pt plus 0.25fil minus 0.25fil
- .\hss.\hss.%
- \hskip 0pt plus 0.5fil minus 0.5fil
- }%
-}
-
-% @enddots{} is an end-of-sentence ellipsis.
-%
-\def\enddots{%
- \leavevmode
- \hbox to 2em{%
- \hskip 0pt plus 0.25fil minus 0.25fil
- .\hss.\hss.\hss.%
- \hskip 0pt plus 0.5fil minus 0.5fil
- }%
- \spacefactor=3000
-}
-
-
-% @page forces the start of a new page
-%
-\def\page{\par\vfill\supereject}
-
-% @exdent text....
-% outputs text on separate line in roman font, starting at standard page margin
-
-% This records the amount of indent in the innermost environment.
-% That's how much \exdent should take out.
-\newskip\exdentamount
-
-% This defn is used inside fill environments such as @defun.
-\def\exdent{\parsearg\exdentyyy}
-\def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}}
-
-% This defn is used inside nofill environments such as @example.
-\def\nofillexdent{\parsearg\nofillexdentyyy}
-\def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount
-\leftline{\hskip\leftskip{\rm#1}}}}
-
-% @inmargin{TEXT} puts TEXT in the margin next to the current paragraph.
-
-\def\inmargin#1{%
-\strut\vadjust{\nobreak\kern-\strutdepth
- \vtop to \strutdepth{\baselineskip\strutdepth\vss
- \llap{\rightskip=\inmarginspacing \vbox{\noindent #1}}\null}}}
-\newskip\inmarginspacing \inmarginspacing=1cm
-\def\strutdepth{\dp\strutbox}
-
-%\hbox{{\rm#1}}\hfil\break}}
-
-% @include file insert text of that file as input.
-% Allow normal characters that we make active in the argument (a file name).
-\def\include{\begingroup
- \catcode`\\=12
- \catcode`~=12
- \catcode`^=12
- \catcode`_=12
- \catcode`|=12
- \catcode`<=12
- \catcode`>=12
- \catcode`+=12
- \parsearg\includezzz}
-% Restore active chars for included file.
-\def\includezzz#1{\endgroup\begingroup
- % Read the included file in a group so nested @include's work.
- \def\thisfile{#1}%
- \input\thisfile
-\endgroup}
-
-\def\thisfile{}
-
-% @center line outputs that line, centered
-
-\def\center{\parsearg\centerzzz}
-\def\centerzzz #1{{\advance\hsize by -\leftskip
-\advance\hsize by -\rightskip
-\centerline{#1}}}
-
-% @sp n outputs n lines of vertical space
-
-\def\sp{\parsearg\spxxx}
-\def\spxxx #1{\vskip #1\baselineskip}
-
-% @comment ...line which is ignored...
-% @c is the same as @comment
-% @ignore ... @end ignore is another way to write a comment
-
-\def\comment{\begingroup \catcode`\^^M=\other%
-\catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
-\commentxxx}
-{\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
-
-\let\c=\comment
-
-% @paragraphindent is defined for the Info formatting commands only.
-\let\paragraphindent=\comment
-
-% Prevent errors for section commands.
-% Used in @ignore and in failing conditionals.
-\def\ignoresections{%
-\let\chapter=\relax
-\let\unnumbered=\relax
-\let\top=\relax
-\let\unnumberedsec=\relax
-\let\unnumberedsection=\relax
-\let\unnumberedsubsec=\relax
-\let\unnumberedsubsection=\relax
-\let\unnumberedsubsubsec=\relax
-\let\unnumberedsubsubsection=\relax
-\let\section=\relax
-\let\subsec=\relax
-\let\subsubsec=\relax
-\let\subsection=\relax
-\let\subsubsection=\relax
-\let\appendix=\relax
-\let\appendixsec=\relax
-\let\appendixsection=\relax
-\let\appendixsubsec=\relax
-\let\appendixsubsection=\relax
-\let\appendixsubsubsec=\relax
-\let\appendixsubsubsection=\relax
-\let\contents=\relax
-\let\smallbook=\relax
-\let\titlepage=\relax
-}
-
-% Used in nested conditionals, where we have to parse the Texinfo source
-% and so want to turn off most commands, in case they are used
-% incorrectly.
-%
-\def\ignoremorecommands{%
- \let\defcodeindex = \relax
- \let\defcv = \relax
- \let\deffn = \relax
- \let\deffnx = \relax
- \let\defindex = \relax
- \let\defivar = \relax
- \let\defmac = \relax
- \let\defmethod = \relax
- \let\defop = \relax
- \let\defopt = \relax
- \let\defspec = \relax
- \let\deftp = \relax
- \let\deftypefn = \relax
- \let\deftypefun = \relax
- \let\deftypevar = \relax
- \let\deftypevr = \relax
- \let\defun = \relax
- \let\defvar = \relax
- \let\defvr = \relax
- \let\ref = \relax
- \let\xref = \relax
- \let\printindex = \relax
- \let\pxref = \relax
- \let\settitle = \relax
- \let\setchapternewpage = \relax
- \let\setchapterstyle = \relax
- \let\everyheading = \relax
- \let\evenheading = \relax
- \let\oddheading = \relax
- \let\everyfooting = \relax
- \let\evenfooting = \relax
- \let\oddfooting = \relax
- \let\headings = \relax
- \let\include = \relax
- \let\lowersections = \relax
- \let\down = \relax
- \let\raisesections = \relax
- \let\up = \relax
- \let\set = \relax
- \let\clear = \relax
- \let\item = \relax
-}
-
-% Ignore @ignore ... @end ignore.
-%
-\def\ignore{\doignore{ignore}}
-
-% Ignore @ifinfo, @ifhtml, @ifnottex, @html, @menu, and @direntry text.
-%
-\def\ifinfo{\doignore{ifinfo}}
-\def\ifhtml{\doignore{ifhtml}}
-\def\ifnottex{\doignore{ifnottex}}
-\def\html{\doignore{html}}
-\def\menu{\doignore{menu}}
-\def\direntry{\doignore{direntry}}
-
-% @dircategory CATEGORY -- specify a category of the dir file
-% which this file should belong to. Ignore this in TeX.
-\let\dircategory = \comment
-
-% Ignore text until a line `@end #1'.
-%
-\def\doignore#1{\begingroup
- % Don't complain about control sequences we have declared \outer.
- \ignoresections
- %
- % Define a command to swallow text until we reach `@end #1'.
- % This @ is a catcode 12 token (that is the normal catcode of @ in
- % this texinfo.tex file). We change the catcode of @ below to match.
- \long\def\doignoretext##1@end #1{\enddoignore}%
- %
- % Make sure that spaces turn into tokens that match what \doignoretext wants.
- \catcode32 = 10
- %
- % Ignore braces, too, so mismatched braces don't cause trouble.
- \catcode`\{ = 9
- \catcode`\} = 9
- %
- % We must not have @c interpreted as a control sequence.
- \catcode`\@ = 12
- %
- % Make the letter c a comment character so that the rest of the line
- % will be ignored. This way, the document can have (for example)
- % @c @end ifinfo
- % and the @end ifinfo will be properly ignored.
- % (We've just changed @ to catcode 12.)
- \catcode`\c = 14
- %
- % And now expand that command.
- \doignoretext
-}
-
-% What we do to finish off ignored text.
-%
-\def\enddoignore{\endgroup\ignorespaces}%
-
-\newif\ifwarnedobs\warnedobsfalse
-\def\obstexwarn{%
- \ifwarnedobs\relax\else
- % We need to warn folks that they may have trouble with TeX 3.0.
- % This uses \immediate\write16 rather than \message to get newlines.
- \immediate\write16{}
- \immediate\write16{***WARNING*** for users of Unix TeX 3.0!}
- \immediate\write16{This manual trips a bug in TeX version 3.0 (tex hangs).}
- \immediate\write16{If you are running another version of TeX, relax.}
- \immediate\write16{If you are running Unix TeX 3.0, kill this TeX process.}
- \immediate\write16{ Then upgrade your TeX installation if you can.}
- \immediate\write16{ (See ftp://ftp.gnu.org/pub/gnu/TeX.README.)}
- \immediate\write16{If you are stuck with version 3.0, run the}
- \immediate\write16{ script ``tex3patch'' from the Texinfo distribution}
- \immediate\write16{ to use a workaround.}
- \immediate\write16{}
- \global\warnedobstrue
- \fi
-}
-
-% **In TeX 3.0, setting text in \nullfont hangs tex. For a
-% workaround (which requires the file ``dummy.tfm'' to be installed),
-% uncomment the following line:
-%%%%%\font\nullfont=dummy\let\obstexwarn=\relax
-
-% Ignore text, except that we keep track of conditional commands for
-% purposes of nesting, up to an `@end #1' command.
-%
-\def\nestedignore#1{%
- \obstexwarn
- % We must actually expand the ignored text to look for the @end
- % command, so that nested ignore constructs work. Thus, we put the
- % text into a \vbox and then do nothing with the result. To minimize
- % the change of memory overflow, we follow the approach outlined on
- % page 401 of the TeXbook: make the current font be a dummy font.
- %
- \setbox0 = \vbox\bgroup
- % Don't complain about control sequences we have declared \outer.
- \ignoresections
- %
- % Define `@end #1' to end the box, which will in turn undefine the
- % @end command again.
- \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}%
- %
- % We are going to be parsing Texinfo commands. Most cause no
- % trouble when they are used incorrectly, but some commands do
- % complicated argument parsing or otherwise get confused, so we
- % undefine them.
- %
- % We can't do anything about stray @-signs, unfortunately;
- % they'll produce `undefined control sequence' errors.
- \ignoremorecommands
- %
- % Set the current font to be \nullfont, a TeX primitive, and define
- % all the font commands to also use \nullfont. We don't use
- % dummy.tfm, as suggested in the TeXbook, because not all sites
- % might have that installed. Therefore, math mode will still
- % produce output, but that should be an extremely small amount of
- % stuff compared to the main input.
- %
- \nullfont
- \let\tenrm = \nullfont \let\tenit = \nullfont \let\tensl = \nullfont
- \let\tenbf = \nullfont \let\tentt = \nullfont \let\smallcaps = \nullfont
- \let\tensf = \nullfont
- % Similarly for index fonts (mostly for their use in
- % smallexample)
- \let\indrm = \nullfont \let\indit = \nullfont \let\indsl = \nullfont
- \let\indbf = \nullfont \let\indtt = \nullfont \let\indsc = \nullfont
- \let\indsf = \nullfont
- %
- % Don't complain when characters are missing from the fonts.
- \tracinglostchars = 0
- %
- % Don't bother to do space factor calculations.
- \frenchspacing
- %
- % Don't report underfull hboxes.
- \hbadness = 10000
- %
- % Do minimal line-breaking.
- \pretolerance = 10000
- %
- % Do not execute instructions in @tex
- \def\tex{\doignore{tex}}%
- % Do not execute macro definitions.
- % `c' is a comment character, so the word `macro' will get cut off.
- \def\macro{\doignore{ma}}%
-}
-
-% @set VAR sets the variable VAR to an empty value.
-% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
-%
-% Since we want to separate VAR from REST-OF-LINE (which might be
-% empty), we can't just use \parsearg; we have to insert a space of our
-% own to delimit the rest of the line, and then take it out again if we
-% didn't need it. Make sure the catcode of space is correct to avoid
-% losing inside @example, for instance.
-%
-\def\set{\begingroup\catcode` =10
- \catcode`\-=12 \catcode`\_=12 % Allow - and _ in VAR.
- \parsearg\setxxx}
-\def\setxxx#1{\setyyy#1 \endsetyyy}
-\def\setyyy#1 #2\endsetyyy{%
- \def\temp{#2}%
- \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty
- \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted.
- \fi
- \endgroup
-}
-% Can't use \xdef to pre-expand #2 and save some time, since \temp or
-% \next or other control sequences that we've defined might get us into
-% an infinite loop. Consider `@set foo @cite{bar}'.
-\def\setzzz#1#2 \endsetzzz{\expandafter\gdef\csname SET#1\endcsname{#2}}
-
-% @clear VAR clears (i.e., unsets) the variable VAR.
-%
-\def\clear{\parsearg\clearxxx}
-\def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax}
-
-% @value{foo} gets the text saved in variable foo.
-%
-{
- \catcode`\_ = \active
- %
- % We might end up with active _ or - characters in the argument if
- % we're called from @code, as @code{@value{foo-bar_}}. So \let any
- % such active characters to their normal equivalents.
- \gdef\value{\begingroup
- \catcode`\-=12 \catcode`\_=12
- \indexbreaks \let_\normalunderscore
- \valuexxx}
-}
-\def\valuexxx#1{\expandablevalue{#1}\endgroup}
-
-% We have this subroutine so that we can handle at least some @value's
-% properly in indexes (we \let\value to this in \indexdummies). Ones
-% whose names contain - or _ still won't work, but we can't do anything
-% about that. The command has to be fully expandable, since the result
-% winds up in the index file. This means that if the variable's value
-% contains other Texinfo commands, it's almost certain it will fail
-% (although perhaps we could fix that with sufficient work to do a
-% one-level expansion on the result, instead of complete).
-%
-\def\expandablevalue#1{%
- \expandafter\ifx\csname SET#1\endcsname\relax
- {[No value for ``#1'']}%
- \else
- \csname SET#1\endcsname
- \fi
-}
-
-% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
-% with @set.
-%
-\def\ifset{\parsearg\ifsetxxx}
-\def\ifsetxxx #1{%
- \expandafter\ifx\csname SET#1\endcsname\relax
- \expandafter\ifsetfail
- \else
- \expandafter\ifsetsucceed
- \fi
-}
-\def\ifsetsucceed{\conditionalsucceed{ifset}}
-\def\ifsetfail{\nestedignore{ifset}}
-\defineunmatchedend{ifset}
-
-% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
-% defined with @set, or has been undefined with @clear.
-%
-\def\ifclear{\parsearg\ifclearxxx}
-\def\ifclearxxx #1{%
- \expandafter\ifx\csname SET#1\endcsname\relax
- \expandafter\ifclearsucceed
- \else
- \expandafter\ifclearfail
- \fi
-}
-\def\ifclearsucceed{\conditionalsucceed{ifclear}}
-\def\ifclearfail{\nestedignore{ifclear}}
-\defineunmatchedend{ifclear}
-
-% @iftex, @ifnothtml, @ifnotinfo always succeed; we read the text
-% following, through the first @end iftex (etc.). Make `@end iftex'
-% (etc.) valid only after an @iftex.
-%
-\def\iftex{\conditionalsucceed{iftex}}
-\def\ifnothtml{\conditionalsucceed{ifnothtml}}
-\def\ifnotinfo{\conditionalsucceed{ifnotinfo}}
-\defineunmatchedend{iftex}
-\defineunmatchedend{ifnothtml}
-\defineunmatchedend{ifnotinfo}
-
-% We can't just want to start a group at @iftex (for example) and end it
-% at @end iftex, since then @set commands inside the conditional have no
-% effect (they'd get reverted at the end of the group). So we must
-% define \Eiftex to redefine itself to be its previous value. (We can't
-% just define it to fail again with an ``unmatched end'' error, since
-% the @ifset might be nested.)
-%
-\def\conditionalsucceed#1{%
- \edef\temp{%
- % Remember the current value of \E#1.
- \let\nece{prevE#1} = \nece{E#1}%
- %
- % At the `@end #1', redefine \E#1 to be its previous value.
- \def\nece{E#1}{\let\nece{E#1} = \nece{prevE#1}}%
- }%
- \temp
-}
-
-% We need to expand lots of \csname's, but we don't want to expand the
-% control sequences after we've constructed them.
-%
-\def\nece#1{\expandafter\noexpand\csname#1\endcsname}
-
-% @asis just yields its argument. Used with @table, for example.
-%
-\def\asis#1{#1}
-
-% @math means output in math mode.
-% We don't use $'s directly in the definition of \math because control
-% sequences like \math are expanded when the toc file is written. Then,
-% we read the toc file back, the $'s will be normal characters (as they
-% should be, according to the definition of Texinfo). So we must use a
-% control sequence to switch into and out of math mode.
-%
-% This isn't quite enough for @math to work properly in indices, but it
-% seems unlikely it will ever be needed there.
-%
-\let\implicitmath = $
-\def\math#1{\implicitmath #1\implicitmath}
-
-% @bullet and @minus need the same treatment as @math, just above.
-\def\bullet{\implicitmath\ptexbullet\implicitmath}
-\def\minus{\implicitmath-\implicitmath}
-
-% @refill is a no-op.
-\let\refill=\relax
-
-% If working on a large document in chapters, it is convenient to
-% be able to disable indexing, cross-referencing, and contents, for test runs.
-% This is done with @novalidate (before @setfilename).
-%
-\newif\iflinks \linkstrue % by default we want the aux files.
-\let\novalidate = \linksfalse
-
-% @setfilename is done at the beginning of every texinfo file.
-% So open here the files we need to have open while reading the input.
-% This makes it possible to make a .fmt file for texinfo.
-\def\setfilename{%
- \iflinks
- \readauxfile
- \fi % \openindices needs to do some work in any case.
- \openindices
- \fixbackslash % Turn off hack to swallow `\input texinfo'.
- \global\let\setfilename=\comment % Ignore extra @setfilename cmds.
- %
- % If texinfo.cnf is present on the system, read it.
- % Useful for site-wide @afourpaper, etc.
- % Just to be on the safe side, close the input stream before the \input.
- \openin 1 texinfo.cnf
- \ifeof1 \let\temp=\relax \else \def\temp{\input texinfo.cnf }\fi
- \closein1
- \temp
- %
- \comment % Ignore the actual filename.
-}
-
-% Called from \setfilename.
-%
-\def\openindices{%
- \newindex{cp}%
- \newcodeindex{fn}%
- \newcodeindex{vr}%
- \newcodeindex{tp}%
- \newcodeindex{ky}%
- \newcodeindex{pg}%
-}
-
-% @bye.
-\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
-
-
-\message{fonts,}
-% Font-change commands.
-
-% Texinfo sort of supports the sans serif font style, which plain TeX does not.
-% So we set up a \sf analogous to plain's \rm, etc.
-\newfam\sffam
-\def\sf{\fam=\sffam \tensf}
-\let\li = \sf % Sometimes we call it \li, not \sf.
-
-% We don't need math for this one.
-\def\ttsl{\tenttsl}
-
-% Use Computer Modern fonts at \magstephalf (11pt).
-\newcount\mainmagstep
-\mainmagstep=\magstephalf
-
-% Set the font macro #1 to the font named #2, adding on the
-% specified font prefix (normally `cm').
-% #3 is the font's design size, #4 is a scale factor
-\def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
-
-% Use cm as the default font prefix.
-% To specify the font prefix, you must define \fontprefix
-% before you read in texinfo.tex.
-\ifx\fontprefix\undefined
-\def\fontprefix{cm}
-\fi
-% Support font families that don't use the same naming scheme as CM.
-\def\rmshape{r}
-\def\rmbshape{bx} %where the normal face is bold
-\def\bfshape{b}
-\def\bxshape{bx}
-\def\ttshape{tt}
-\def\ttbshape{tt}
-\def\ttslshape{sltt}
-\def\itshape{ti}
-\def\itbshape{bxti}
-\def\slshape{sl}
-\def\slbshape{bxsl}
-\def\sfshape{ss}
-\def\sfbshape{ss}
-\def\scshape{csc}
-\def\scbshape{csc}
-
-\ifx\bigger\relax
-\let\mainmagstep=\magstep1
-\setfont\textrm\rmshape{12}{1000}
-\setfont\texttt\ttshape{12}{1000}
-\else
-\setfont\textrm\rmshape{10}{\mainmagstep}
-\setfont\texttt\ttshape{10}{\mainmagstep}
-\fi
-% Instead of cmb10, you many want to use cmbx10.
-% cmbx10 is a prettier font on its own, but cmb10
-% looks better when embedded in a line with cmr10.
-\setfont\textbf\bfshape{10}{\mainmagstep}
-\setfont\textit\itshape{10}{\mainmagstep}
-\setfont\textsl\slshape{10}{\mainmagstep}
-\setfont\textsf\sfshape{10}{\mainmagstep}
-\setfont\textsc\scshape{10}{\mainmagstep}
-\setfont\textttsl\ttslshape{10}{\mainmagstep}
-\font\texti=cmmi10 scaled \mainmagstep
-\font\textsy=cmsy10 scaled \mainmagstep
-
-% A few fonts for @defun, etc.
-\setfont\defbf\bxshape{10}{\magstep1} %was 1314
-\setfont\deftt\ttshape{10}{\magstep1}
-\def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}
-
-% Fonts for indices and small examples (9pt).
-% We actually use the slanted font rather than the italic,
-% because texinfo normally uses the slanted fonts for that.
-% Do not make many font distinctions in general in the index, since they
-% aren't very useful.
-\setfont\ninett\ttshape{9}{1000}
-\setfont\ninettsl\ttslshape{10}{900}
-\setfont\indrm\rmshape{9}{1000}
-\setfont\indit\itshape{9}{1000}
-\setfont\indsl\slshape{9}{1000}
-\let\indtt=\ninett
-\let\indttsl=\ninettsl
-\let\indsf=\indrm
-\let\indbf=\indrm
-\setfont\indsc\scshape{10}{900}
-\font\indi=cmmi9
-\font\indsy=cmsy9
-
-% Fonts for title page:
-\setfont\titlerm\rmbshape{12}{\magstep3}
-\setfont\titleit\itbshape{10}{\magstep4}
-\setfont\titlesl\slbshape{10}{\magstep4}
-\setfont\titlett\ttbshape{12}{\magstep3}
-\setfont\titlettsl\ttslshape{10}{\magstep4}
-\setfont\titlesf\sfbshape{17}{\magstep1}
-\let\titlebf=\titlerm
-\setfont\titlesc\scbshape{10}{\magstep4}
-\font\titlei=cmmi12 scaled \magstep3
-\font\titlesy=cmsy10 scaled \magstep4
-\def\authorrm{\secrm}
-
-% Chapter (and unnumbered) fonts (17.28pt).
-\setfont\chaprm\rmbshape{12}{\magstep2}
-\setfont\chapit\itbshape{10}{\magstep3}
-\setfont\chapsl\slbshape{10}{\magstep3}
-\setfont\chaptt\ttbshape{12}{\magstep2}
-\setfont\chapttsl\ttslshape{10}{\magstep3}
-\setfont\chapsf\sfbshape{17}{1000}
-\let\chapbf=\chaprm
-\setfont\chapsc\scbshape{10}{\magstep3}
-\font\chapi=cmmi12 scaled \magstep2
-\font\chapsy=cmsy10 scaled \magstep3
-
-% Section fonts (14.4pt).
-\setfont\secrm\rmbshape{12}{\magstep1}
-\setfont\secit\itbshape{10}{\magstep2}
-\setfont\secsl\slbshape{10}{\magstep2}
-\setfont\sectt\ttbshape{12}{\magstep1}
-\setfont\secttsl\ttslshape{10}{\magstep2}
-\setfont\secsf\sfbshape{12}{\magstep1}
-\let\secbf\secrm
-\setfont\secsc\scbshape{10}{\magstep2}
-\font\seci=cmmi12 scaled \magstep1
-\font\secsy=cmsy10 scaled \magstep2
-
-% \setfont\ssecrm\bxshape{10}{\magstep1} % This size an font looked bad.
-% \setfont\ssecit\itshape{10}{\magstep1} % The letters were too crowded.
-% \setfont\ssecsl\slshape{10}{\magstep1}
-% \setfont\ssectt\ttshape{10}{\magstep1}
-% \setfont\ssecsf\sfshape{10}{\magstep1}
-
-%\setfont\ssecrm\bfshape{10}{1315} % Note the use of cmb rather than cmbx.
-%\setfont\ssecit\itshape{10}{1315} % Also, the size is a little larger than
-%\setfont\ssecsl\slshape{10}{1315} % being scaled magstep1.
-%\setfont\ssectt\ttshape{10}{1315}
-%\setfont\ssecsf\sfshape{10}{1315}
-
-%\let\ssecbf=\ssecrm
-
-% Subsection fonts (13.15pt).
-\setfont\ssecrm\rmbshape{12}{\magstephalf}
-\setfont\ssecit\itbshape{10}{1315}
-\setfont\ssecsl\slbshape{10}{1315}
-\setfont\ssectt\ttbshape{12}{\magstephalf}
-\setfont\ssecttsl\ttslshape{10}{1315}
-\setfont\ssecsf\sfbshape{12}{\magstephalf}
-\let\ssecbf\ssecrm
-\setfont\ssecsc\scbshape{10}{\magstep1}
-\font\sseci=cmmi12 scaled \magstephalf
-\font\ssecsy=cmsy10 scaled 1315
-% The smallcaps and symbol fonts should actually be scaled \magstep1.5,
-% but that is not a standard magnification.
-
-% In order for the font changes to affect most math symbols and letters,
-% we have to define the \textfont of the standard families. Since
-% texinfo doesn't allow for producing subscripts and superscripts, we
-% don't bother to reset \scriptfont and \scriptscriptfont (which would
-% also require loading a lot more fonts).
-%
-\def\resetmathfonts{%
- \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy
- \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf
- \textfont\ttfam = \tentt \textfont\sffam = \tensf
-}
-
-
-% The font-changing commands redefine the meanings of \tenSTYLE, instead
-% of just \STYLE. We do this so that font changes will continue to work
-% in math mode, where it is the current \fam that is relevant in most
-% cases, not the current font. Plain TeX does \def\bf{\fam=\bffam
-% \tenbf}, for example. By redefining \tenbf, we obviate the need to
-% redefine \bf itself.
-\def\textfonts{%
- \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
- \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
- \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl
- \resetmathfonts}
-\def\titlefonts{%
- \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
- \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
- \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
- \let\tenttsl=\titlettsl
- \resetmathfonts \setleading{25pt}}
-\def\titlefont#1{{\titlefonts\rm #1}}
-\def\chapfonts{%
- \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
- \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
- \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl
- \resetmathfonts \setleading{19pt}}
-\def\secfonts{%
- \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
- \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
- \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl
- \resetmathfonts \setleading{16pt}}
-\def\subsecfonts{%
- \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
- \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
- \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl
- \resetmathfonts \setleading{15pt}}
-\let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf?
-\def\indexfonts{%
- \let\tenrm=\indrm \let\tenit=\indit \let\tensl=\indsl
- \let\tenbf=\indbf \let\tentt=\indtt \let\smallcaps=\indsc
- \let\tensf=\indsf \let\teni=\indi \let\tensy=\indsy \let\tenttsl=\indttsl
- \resetmathfonts \setleading{12pt}}
-
-% Set up the default fonts, so we can use them for creating boxes.
-%
-\textfonts
-
-% Define these so they can be easily changed for other fonts.
-\def\angleleft{$\langle$}
-\def\angleright{$\rangle$}
-
-% Count depth in font-changes, for error checks
-\newcount\fontdepth \fontdepth=0
-
-% Fonts for short table of contents.
-\setfont\shortcontrm\rmshape{12}{1000}
-\setfont\shortcontbf\bxshape{12}{1000}
-\setfont\shortcontsl\slshape{12}{1000}
-
-%% Add scribe-like font environments, plus @l for inline lisp (usually sans
-%% serif) and @ii for TeX italic
-
-% \smartitalic{ARG} outputs arg in italics, followed by an italic correction
-% unless the following character is such as not to need one.
-\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi}
-\def\smartslanted#1{{\sl #1}\futurelet\next\smartitalicx}
-\def\smartitalic#1{{\it #1}\futurelet\next\smartitalicx}
-
-\let\i=\smartitalic
-\let\var=\smartslanted
-\let\dfn=\smartslanted
-\let\emph=\smartitalic
-\let\cite=\smartslanted
-
-\def\b#1{{\bf #1}}
-\let\strong=\b
-
-% We can't just use \exhyphenpenalty, because that only has effect at
-% the end of a paragraph. Restore normal hyphenation at the end of the
-% group within which \nohyphenation is presumably called.
-%
-\def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation}
-\def\restorehyphenation{\hyphenchar\font = `- }
-
-\def\t#1{%
- {\tt \rawbackslash \frenchspacing #1}%
- \null
-}
-\let\ttfont=\t
-\def\samp#1{`\tclose{#1}'\null}
-\setfont\smallrm\rmshape{8}{1000}
-\font\smallsy=cmsy9
-\def\key#1{{\smallrm\textfont2=\smallsy \leavevmode\hbox{%
- \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
- \vbox{\hrule\kern-0.4pt
- \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
- \kern-0.4pt\hrule}%
- \kern-.06em\raise0.4pt\hbox{\angleright}}}}
-% The old definition, with no lozenge:
-%\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
-\def\ctrl #1{{\tt \rawbackslash \hat}#1}
-
-% @file, @option are the same as @samp.
-\let\file=\samp
-\let\option=\samp
-
-% @code is a modification of @t,
-% which makes spaces the same size as normal in the surrounding text.
-\def\tclose#1{%
- {%
- % Change normal interword space to be same as for the current font.
- \spaceskip = \fontdimen2\font
- %
- % Switch to typewriter.
- \tt
- %
- % But `\ ' produces the large typewriter interword space.
- \def\ {{\spaceskip = 0pt{} }}%
- %
- % Turn off hyphenation.
- \nohyphenation
- %
- \rawbackslash
- \frenchspacing
- #1%
- }%
- \null
-}
-
-% We *must* turn on hyphenation at `-' and `_' in \code.
-% Otherwise, it is too hard to avoid overfull hboxes
-% in the Emacs manual, the Library manual, etc.
-
-% Unfortunately, TeX uses one parameter (\hyphenchar) to control
-% both hyphenation at - and hyphenation within words.
-% We must therefore turn them both off (\tclose does that)
-% and arrange explicitly to hyphenate at a dash.
-% -- rms.
-{
- \catcode`\-=\active
- \catcode`\_=\active
- %
- \global\def\code{\begingroup
- \catcode`\-=\active \let-\codedash
- \catcode`\_=\active \let_\codeunder
- \codex
- }
- %
- % If we end up with any active - characters when handling the index,
- % just treat them as a normal -.
- \global\def\indexbreaks{\catcode`\-=\active \let-\realdash}
-}
-
-\def\realdash{-}
-\def\codedash{-\discretionary{}{}{}}
-\def\codeunder{\ifusingtt{\normalunderscore\discretionary{}{}{}}{\_}}
-\def\codex #1{\tclose{#1}\endgroup}
-
-%\let\exp=\tclose %Was temporary
-
-% @kbd is like @code, except that if the argument is just one @key command,
-% then @kbd has no effect.
-
-% @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
-% `example' (@kbd uses ttsl only inside of @example and friends),
-% or `code' (@kbd uses normal tty font always).
-\def\kbdinputstyle{\parsearg\kbdinputstylexxx}
-\def\kbdinputstylexxx#1{%
- \def\arg{#1}%
- \ifx\arg\worddistinct
- \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
- \else\ifx\arg\wordexample
- \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
- \else\ifx\arg\wordcode
- \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
- \fi\fi\fi
-}
-\def\worddistinct{distinct}
-\def\wordexample{example}
-\def\wordcode{code}
-
-% Default is kbdinputdistinct. (Too much of a hassle to call the macro,
-% the catcodes are wrong for parsearg to work.)
-\gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}
-
-\def\xkey{\key}
-\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
-\ifx\one\xkey\ifx\threex\three \key{#2}%
-\else{\tclose{\kbdfont\look}}\fi
-\else{\tclose{\kbdfont\look}}\fi}
-
-% For @url, @env, @command quotes seem unnecessary, so use \code.
-\let\url=\code
-\let\env=\code
-\let\command=\code
-
-% @uref (abbreviation for `urlref') takes an optional second argument
-% specifying the text to display. First (mandatory) arg is the url.
-% Perhaps eventually put in a hypertex \special here.
-%
-\def\uref#1{\urefxxx #1,,\finish}
-\def\urefxxx#1,#2,#3\finish{%
- \setbox0 = \hbox{\ignorespaces #2}%
- \ifdim\wd0 > 0pt
- \unhbox0\ (\code{#1})%
- \else
- \code{#1}%
- \fi
-}
-
-% rms does not like the angle brackets --karl, 17may97.
-% So now @email is just like @uref.
-%\def\email#1{\angleleft{\tt #1}\angleright}
-\let\email=\uref
-
-% Check if we are currently using a typewriter font. Since all the
-% Computer Modern typewriter fonts have zero interword stretch (and
-% shrink), and it is reasonable to expect all typewriter fonts to have
-% this property, we can check that font parameter.
-%
-\def\ifmonospace{\ifdim\fontdimen3\font=0pt }
-
-% Typeset a dimension, e.g., `in' or `pt'. The only reason for the
-% argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
-%
-\def\dmn#1{\thinspace #1}
-
-\def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
-
-% @l was never documented to mean ``switch to the Lisp font'',
-% and it is not used as such in any manual I can find. We need it for
-% Polish suppressed-l. --karl, 22sep96.
-%\def\l#1{{\li #1}\null}
-
-% Explicit font changes: @r, @sc, undocumented @ii.
-\def\r#1{{\rm #1}} % roman font
-\def\sc#1{{\smallcaps#1}} % smallcaps font
-\def\ii#1{{\it #1}} % italic font
-
-% @acronym downcases the argument and prints in smallcaps.
-\def\acronym#1{{\smallcaps \lowercase{#1}}}
-
-% @pounds{} is a sterling sign.
-\def\pounds{{\it\$}}
-
-
-\message{page headings,}
-
-\newskip\titlepagetopglue \titlepagetopglue = 1.5in
-\newskip\titlepagebottomglue \titlepagebottomglue = 2pc
-
-% First the title page. Must do @settitle before @titlepage.
-\newif\ifseenauthor
-\newif\iffinishedtitlepage
-
-% Do an implicit @contents or @shortcontents after @end titlepage if the
-% user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
-%
-\newif\ifsetcontentsaftertitlepage
- \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
-\newif\ifsetshortcontentsaftertitlepage
- \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
-
-\def\shorttitlepage{\parsearg\shorttitlepagezzz}
-\def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}%
- \endgroup\page\hbox{}\page}
-
-\def\titlepage{\begingroup \parindent=0pt \textfonts
- \let\subtitlerm=\tenrm
- \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}%
- %
- \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}%
- %
- % Leave some space at the very top of the page.
- \vglue\titlepagetopglue
- %
- % Now you can print the title using @title.
- \def\title{\parsearg\titlezzz}%
- \def\titlezzz##1{\leftline{\titlefonts\rm ##1}
- % print a rule at the page bottom also.
- \finishedtitlepagefalse
- \vskip4pt \hrule height 4pt width \hsize \vskip4pt}%
- % No rule at page bottom unless we print one at the top with @title.
- \finishedtitlepagetrue
- %
- % Now you can put text using @subtitle.
- \def\subtitle{\parsearg\subtitlezzz}%
- \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}%
- %
- % @author should come last, but may come many times.
- \def\author{\parsearg\authorzzz}%
- \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi
- {\authorfont \leftline{##1}}}%
- %
- % Most title ``pages'' are actually two pages long, with space
- % at the top of the second. We don't want the ragged left on the second.
- \let\oldpage = \page
- \def\page{%
- \iffinishedtitlepage\else
- \finishtitlepage
- \fi
- \oldpage
- \let\page = \oldpage
- \hbox{}}%
-% \def\page{\oldpage \hbox{}}
-}
-
-\def\Etitlepage{%
- \iffinishedtitlepage\else
- \finishtitlepage
- \fi
- % It is important to do the page break before ending the group,
- % because the headline and footline are only empty inside the group.
- % If we use the new definition of \page, we always get a blank page
- % after the title page, which we certainly don't want.
- \oldpage
- \endgroup
- %
- % If they want short, they certainly want long too.
- \ifsetshortcontentsaftertitlepage
- \shortcontents
- \contents
- \global\let\shortcontents = \relax
- \global\let\contents = \relax
- \fi
- %
- \ifsetcontentsaftertitlepage
- \contents
- \global\let\contents = \relax
- \global\let\shortcontents = \relax
- \fi
- %
- \HEADINGSon
-}
-
-\def\finishtitlepage{%
- \vskip4pt \hrule height 2pt width \hsize
- \vskip\titlepagebottomglue
- \finishedtitlepagetrue
-}
-
-%%% Set up page headings and footings.
-
-\let\thispage=\folio
-
-\newtoks\evenheadline % headline on even pages
-\newtoks\oddheadline % headline on odd pages
-\newtoks\evenfootline % footline on even pages
-\newtoks\oddfootline % footline on odd pages
-
-% Now make Tex use those variables
-\headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
- \else \the\evenheadline \fi}}
-\footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
- \else \the\evenfootline \fi}\HEADINGShook}
-\let\HEADINGShook=\relax
-
-% Commands to set those variables.
-% For example, this is what @headings on does
-% @evenheading @thistitle|@thispage|@thischapter
-% @oddheading @thischapter|@thispage|@thistitle
-% @evenfooting @thisfile||
-% @oddfooting ||@thisfile
-
-\def\evenheading{\parsearg\evenheadingxxx}
-\def\oddheading{\parsearg\oddheadingxxx}
-\def\everyheading{\parsearg\everyheadingxxx}
-
-\def\evenfooting{\parsearg\evenfootingxxx}
-\def\oddfooting{\parsearg\oddfootingxxx}
-\def\everyfooting{\parsearg\everyfootingxxx}
-
-{\catcode`\@=0 %
-
-\gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish}
-\gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{%
-\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
-
-\gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish}
-\gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{%
-\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
-
-\gdef\everyheadingxxx#1{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
-
-\gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish}
-\gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{%
-\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
-
-\gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish}
-\gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{%
- \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
- %
- % Leave some space for the footline. Hopefully ok to assume
- % @evenfooting will not be used by itself.
- \global\advance\pageheight by -\baselineskip
- \global\advance\vsize by -\baselineskip
-}
-
-\gdef\everyfootingxxx#1{\oddfootingxxx{#1}\evenfootingxxx{#1}}
-%
-}% unbind the catcode of @.
-
-% @headings double turns headings on for double-sided printing.
-% @headings single turns headings on for single-sided printing.
-% @headings off turns them off.
-% @headings on same as @headings double, retained for compatibility.
-% @headings after turns on double-sided headings after this page.
-% @headings doubleafter turns on double-sided headings after this page.
-% @headings singleafter turns on single-sided headings after this page.
-% By default, they are off at the start of a document,
-% and turned `on' after @end titlepage.
-
-\def\headings #1 {\csname HEADINGS#1\endcsname}
-
-\def\HEADINGSoff{
-\global\evenheadline={\hfil} \global\evenfootline={\hfil}
-\global\oddheadline={\hfil} \global\oddfootline={\hfil}}
-\HEADINGSoff
-% When we turn headings on, set the page number to 1.
-% For double-sided printing, put current file name in lower left corner,
-% chapter name on inside top of right hand pages, document
-% title on inside top of left hand pages, and page numbers on outside top
-% edge of all pages.
-\def\HEADINGSdouble{
-\global\pageno=1
-\global\evenfootline={\hfil}
-\global\oddfootline={\hfil}
-\global\evenheadline={\line{\folio\hfil\thistitle}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
-\global\let\contentsalignmacro = \chapoddpage
-}
-\let\contentsalignmacro = \chappager
-
-% For single-sided printing, chapter title goes across top left of page,
-% page number on top right.
-\def\HEADINGSsingle{
-\global\pageno=1
-\global\evenfootline={\hfil}
-\global\oddfootline={\hfil}
-\global\evenheadline={\line{\thischapter\hfil\folio}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
-\global\let\contentsalignmacro = \chappager
-}
-\def\HEADINGSon{\HEADINGSdouble}
-
-\def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
-\let\HEADINGSdoubleafter=\HEADINGSafter
-\def\HEADINGSdoublex{%
-\global\evenfootline={\hfil}
-\global\oddfootline={\hfil}
-\global\evenheadline={\line{\folio\hfil\thistitle}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
-\global\let\contentsalignmacro = \chapoddpage
-}
-
-\def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
-\def\HEADINGSsinglex{%
-\global\evenfootline={\hfil}
-\global\oddfootline={\hfil}
-\global\evenheadline={\line{\thischapter\hfil\folio}}
-\global\oddheadline={\line{\thischapter\hfil\folio}}
-\global\let\contentsalignmacro = \chappager
-}
-
-% Subroutines used in generating headings
-% Produces Day Month Year style of output.
-\def\today{\number\day\space
-\ifcase\month\or
-January\or February\or March\or April\or May\or June\or
-July\or August\or September\or October\or November\or December\fi
-\space\number\year}
-
-% Use this if you want the Month Day, Year style of output.
-%\def\today{\ifcase\month\or
-%January\or February\or March\or April\or May\or June\or
-%July\or August\or September\or October\or November\or December\fi
-%\space\number\day, \number\year}
-
-% @settitle line... specifies the title of the document, for headings
-% It generates no output of its own
-
-\def\thistitle{No Title}
-\def\settitle{\parsearg\settitlezzz}
-\def\settitlezzz #1{\gdef\thistitle{#1}}
-
-
-\message{tables,}
-% Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x).
-
-% default indentation of table text
-\newdimen\tableindent \tableindent=.8in
-% default indentation of @itemize and @enumerate text
-\newdimen\itemindent \itemindent=.3in
-% margin between end of table item and start of table text.
-\newdimen\itemmargin \itemmargin=.1in
-
-% used internally for \itemindent minus \itemmargin
-\newdimen\itemmax
-
-% Note @table, @vtable, and @vtable define @item, @itemx, etc., with
-% these defs.
-% They also define \itemindex
-% to index the item name in whatever manner is desired (perhaps none).
-
-\newif\ifitemxneedsnegativevskip
-
-\def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
-
-\def\internalBitem{\smallbreak \parsearg\itemzzz}
-\def\internalBitemx{\itemxpar \parsearg\itemzzz}
-
-\def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}
-\def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz}
-
-\def\internalBkitem{\smallbreak \parsearg\kitemzzz}
-\def\internalBkitemx{\itemxpar \parsearg\kitemzzz}
-
-\def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%
- \itemzzz {#1}}
-
-\def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}%
- \itemzzz {#1}}
-
-\def\itemzzz #1{\begingroup %
- \advance\hsize by -\rightskip
- \advance\hsize by -\tableindent
- \setbox0=\hbox{\itemfont{#1}}%
- \itemindex{#1}%
- \nobreak % This prevents a break before @itemx.
- %
- % If the item text does not fit in the space we have, put it on a line
- % by itself, and do not allow a page break either before or after that
- % line. We do not start a paragraph here because then if the next
- % command is, e.g., @kindex, the whatsit would get put into the
- % horizontal list on a line by itself, resulting in extra blank space.
- \ifdim \wd0>\itemmax
- %
- % Make this a paragraph so we get the \parskip glue and wrapping,
- % but leave it ragged-right.
- \begingroup
- \advance\leftskip by-\tableindent
- \advance\hsize by\tableindent
- \advance\rightskip by0pt plus1fil
- \leavevmode\unhbox0\par
- \endgroup
- %
- % We're going to be starting a paragraph, but we don't want the
- % \parskip glue -- logically it's part of the @item we just started.
- \nobreak \vskip-\parskip
- %
- % Stop a page break at the \parskip glue coming up. Unfortunately
- % we can't prevent a possible page break at the following
- % \baselineskip glue.
- \nobreak
- \endgroup
- \itemxneedsnegativevskipfalse
- \else
- % The item text fits into the space. Start a paragraph, so that the
- % following text (if any) will end up on the same line.
- \noindent
- % Do this with kerns and \unhbox so that if there is a footnote in
- % the item text, it can migrate to the main vertical list and
- % eventually be printed.
- \nobreak\kern-\tableindent
- \dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0
- \unhbox0
- \nobreak\kern\dimen0
- \endgroup
- \itemxneedsnegativevskiptrue
- \fi
-}
-
-\def\item{\errmessage{@item while not in a table}}
-\def\itemx{\errmessage{@itemx while not in a table}}
-\def\kitem{\errmessage{@kitem while not in a table}}
-\def\kitemx{\errmessage{@kitemx while not in a table}}
-\def\xitem{\errmessage{@xitem while not in a table}}
-\def\xitemx{\errmessage{@xitemx while not in a table}}
-
-% Contains a kludge to get @end[description] to work.
-\def\description{\tablez{\dontindex}{1}{}{}{}{}}
-
-% @table, @ftable, @vtable.
-\def\table{\begingroup\inENV\obeylines\obeyspaces\tablex}
-{\obeylines\obeyspaces%
-\gdef\tablex #1^^M{%
-\tabley\dontindex#1 \endtabley}}
-
-\def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex}
-{\obeylines\obeyspaces%
-\gdef\ftablex #1^^M{%
-\tabley\fnitemindex#1 \endtabley
-\def\Eftable{\endgraf\afterenvbreak\endgroup}%
-\let\Etable=\relax}}
-
-\def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}
-{\obeylines\obeyspaces%
-\gdef\vtablex #1^^M{%
-\tabley\vritemindex#1 \endtabley
-\def\Evtable{\endgraf\afterenvbreak\endgroup}%
-\let\Etable=\relax}}
-
-\def\dontindex #1{}
-\def\fnitemindex #1{\doind {fn}{\code{#1}}}%
-\def\vritemindex #1{\doind {vr}{\code{#1}}}%
-
-{\obeyspaces %
-\gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup%
-\tablez{#1}{#2}{#3}{#4}{#5}{#6}}}
-
-\def\tablez #1#2#3#4#5#6{%
-\aboveenvbreak %
-\begingroup %
-\def\Edescription{\Etable}% Necessary kludge.
-\let\itemindex=#1%
-\ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
-\ifnum 0#4>0 \tableindent=#4\mil \fi %
-\ifnum 0#5>0 \advance \rightskip by #5\mil \fi %
-\def\itemfont{#2}%
-\itemmax=\tableindent %
-\advance \itemmax by -\itemmargin %
-\advance \leftskip by \tableindent %
-\exdentamount=\tableindent
-\parindent = 0pt
-\parskip = \smallskipamount
-\ifdim \parskip=0pt \parskip=2pt \fi%
-\def\Etable{\endgraf\afterenvbreak\endgroup}%
-\let\item = \internalBitem %
-\let\itemx = \internalBitemx %
-\let\kitem = \internalBkitem %
-\let\kitemx = \internalBkitemx %
-\let\xitem = \internalBxitem %
-\let\xitemx = \internalBxitemx %
-}
-
-% This is the counter used by @enumerate, which is really @itemize
-
-\newcount \itemno
-
-\def\itemize{\parsearg\itemizezzz}
-
-\def\itemizezzz #1{%
- \begingroup % ended by the @end itemize
- \itemizey {#1}{\Eitemize}
-}
-
-\def\itemizey #1#2{%
-\aboveenvbreak %
-\itemmax=\itemindent %
-\advance \itemmax by -\itemmargin %
-\advance \leftskip by \itemindent %
-\exdentamount=\itemindent
-\parindent = 0pt %
-\parskip = \smallskipamount %
-\ifdim \parskip=0pt \parskip=2pt \fi%
-\def#2{\endgraf\afterenvbreak\endgroup}%
-\def\itemcontents{#1}%
-\let\item=\itemizeitem}
-
-% Set sfcode to normal for the chars that usually have another value.
-% These are `.?!:;,'
-\def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000
- \sfcode58=1000 \sfcode59=1000 \sfcode44=1000 }
-
-% \splitoff TOKENS\endmark defines \first to be the first token in
-% TOKENS, and \rest to be the remainder.
-%
-\def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
-
-% Allow an optional argument of an uppercase letter, lowercase letter,
-% or number, to specify the first label in the enumerated list. No
-% argument is the same as `1'.
-%
-\def\enumerate{\parsearg\enumeratezzz}
-\def\enumeratezzz #1{\enumeratey #1 \endenumeratey}
-\def\enumeratey #1 #2\endenumeratey{%
- \begingroup % ended by the @end enumerate
- %
- % If we were given no argument, pretend we were given `1'.
- \def\thearg{#1}%
- \ifx\thearg\empty \def\thearg{1}\fi
- %
- % Detect if the argument is a single token. If so, it might be a
- % letter. Otherwise, the only valid thing it can be is a number.
- % (We will always have one token, because of the test we just made.
- % This is a good thing, since \splitoff doesn't work given nothing at
- % all -- the first parameter is undelimited.)
- \expandafter\splitoff\thearg\endmark
- \ifx\rest\empty
- % Only one token in the argument. It could still be anything.
- % A ``lowercase letter'' is one whose \lccode is nonzero.
- % An ``uppercase letter'' is one whose \lccode is both nonzero, and
- % not equal to itself.
- % Otherwise, we assume it's a number.
- %
- % We need the \relax at the end of the \ifnum lines to stop TeX from
- % continuing to look for a .
- %
- \ifnum\lccode\expandafter`\thearg=0\relax
- \numericenumerate % a number (we hope)
- \else
- % It's a letter.
- \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
- \lowercaseenumerate % lowercase letter
- \else
- \uppercaseenumerate % uppercase letter
- \fi
- \fi
- \else
- % Multiple tokens in the argument. We hope it's a number.
- \numericenumerate
- \fi
-}
-
-% An @enumerate whose labels are integers. The starting integer is
-% given in \thearg.
-%
-\def\numericenumerate{%
- \itemno = \thearg
- \startenumeration{\the\itemno}%
-}
-
-% The starting (lowercase) letter is in \thearg.
-\def\lowercaseenumerate{%
- \itemno = \expandafter`\thearg
- \startenumeration{%
- % Be sure we're not beyond the end of the alphabet.
- \ifnum\itemno=0
- \errmessage{No more lowercase letters in @enumerate; get a bigger
- alphabet}%
- \fi
- \char\lccode\itemno
- }%
-}
-
-% The starting (uppercase) letter is in \thearg.
-\def\uppercaseenumerate{%
- \itemno = \expandafter`\thearg
- \startenumeration{%
- % Be sure we're not beyond the end of the alphabet.
- \ifnum\itemno=0
- \errmessage{No more uppercase letters in @enumerate; get a bigger
- alphabet}
- \fi
- \char\uccode\itemno
- }%
-}
-
-% Call itemizey, adding a period to the first argument and supplying the
-% common last two arguments. Also subtract one from the initial value in
-% \itemno, since @item increments \itemno.
-%
-\def\startenumeration#1{%
- \advance\itemno by -1
- \itemizey{#1.}\Eenumerate\flushcr
-}
-
-% @alphaenumerate and @capsenumerate are abbreviations for giving an arg
-% to @enumerate.
-%
-\def\alphaenumerate{\enumerate{a}}
-\def\capsenumerate{\enumerate{A}}
-\def\Ealphaenumerate{\Eenumerate}
-\def\Ecapsenumerate{\Eenumerate}
-
-% Definition of @item while inside @itemize.
-
-\def\itemizeitem{%
-\advance\itemno by 1
-{\let\par=\endgraf \smallbreak}%
-\ifhmode \errmessage{In hmode at itemizeitem}\fi
-{\parskip=0in \hskip 0pt
-\hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
-\vadjust{\penalty 1200}}%
-\flushcr}
-
-% @multitable macros
-% Amy Hendrickson, 8/18/94, 3/6/96
-%
-% @multitable ... @end multitable will make as many columns as desired.
-% Contents of each column will wrap at width given in preamble. Width
-% can be specified either with sample text given in a template line,
-% or in percent of \hsize, the current width of text on page.
-
-% Table can continue over pages but will only break between lines.
-
-% To make preamble:
-%
-% Either define widths of columns in terms of percent of \hsize:
-% @multitable @columnfractions .25 .3 .45
-% @item ...
-%
-% Numbers following @columnfractions are the percent of the total
-% current hsize to be used for each column. You may use as many
-% columns as desired.
-
-
-% Or use a template:
-% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
-% @item ...
-% using the widest term desired in each column.
-%
-% For those who want to use more than one line's worth of words in
-% the preamble, break the line within one argument and it
-% will parse correctly, i.e.,
-%
-% @multitable {Column 1 template} {Column 2 template} {Column 3
-% template}
-% Not:
-% @multitable {Column 1 template} {Column 2 template}
-% {Column 3 template}
-
-% Each new table line starts with @item, each subsequent new column
-% starts with @tab. Empty columns may be produced by supplying @tab's
-% with nothing between them for as many times as empty columns are needed,
-% ie, @tab@tab@tab will produce two empty columns.
-
-% @item, @tab, @multitable or @end multitable do not need to be on their
-% own lines, but it will not hurt if they are.
-
-% Sample multitable:
-
-% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
-% @item first col stuff @tab second col stuff @tab third col
-% @item
-% first col stuff
-% @tab
-% second col stuff
-% @tab
-% third col
-% @item first col stuff @tab second col stuff
-% @tab Many paragraphs of text may be used in any column.
-%
-% They will wrap at the width determined by the template.
-% @item@tab@tab This will be in third column.
-% @end multitable
-
-% Default dimensions may be reset by user.
-% @multitableparskip is vertical space between paragraphs in table.
-% @multitableparindent is paragraph indent in table.
-% @multitablecolmargin is horizontal space to be left between columns.
-% @multitablelinespace is space to leave between table items, baseline
-% to baseline.
-% 0pt means it depends on current normal line spacing.
-%
-\newskip\multitableparskip
-\newskip\multitableparindent
-\newdimen\multitablecolspace
-\newskip\multitablelinespace
-\multitableparskip=0pt
-\multitableparindent=6pt
-\multitablecolspace=12pt
-\multitablelinespace=0pt
-
-% Macros used to set up halign preamble:
-%
-\let\endsetuptable\relax
-\def\xendsetuptable{\endsetuptable}
-\let\columnfractions\relax
-\def\xcolumnfractions{\columnfractions}
-\newif\ifsetpercent
-
-% #1 is the part of the @columnfraction before the decimal point, which
-% is presumably either 0 or the empty string (but we don't check, we
-% just throw it away). #2 is the decimal part, which we use as the
-% percent of \hsize for this column.
-\def\pickupwholefraction#1.#2 {%
- \global\advance\colcount by 1
- \expandafter\xdef\csname col\the\colcount\endcsname{.#2\hsize}%
- \setuptable
-}
-
-\newcount\colcount
-\def\setuptable#1{%
- \def\firstarg{#1}%
- \ifx\firstarg\xendsetuptable
- \let\go = \relax
- \else
- \ifx\firstarg\xcolumnfractions
- \global\setpercenttrue
- \else
- \ifsetpercent
- \let\go\pickupwholefraction
- \else
- \global\advance\colcount by 1
- \setbox0=\hbox{#1\unskip }% Add a normal word space as a separator;
- % typically that is always in the input, anyway.
- \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
- \fi
- \fi
- \ifx\go\pickupwholefraction
- % Put the argument back for the \pickupwholefraction call, so
- % we'll always have a period there to be parsed.
- \def\go{\pickupwholefraction#1}%
- \else
- \let\go = \setuptable
- \fi%
- \fi
- \go
-}
-
-% multitable syntax
-\def\tab{&\hskip1sp\relax} % 2/2/96
- % tiny skip here makes sure this column space is
- % maintained, even if it is never used.
-
-% @multitable ... @end multitable definitions:
-%
-\def\multitable{\parsearg\dotable}
-\def\dotable#1{\bgroup
- \vskip\parskip
- \let\item\crcr
- \tolerance=9500
- \hbadness=9500
- \setmultitablespacing
- \parskip=\multitableparskip
- \parindent=\multitableparindent
- \overfullrule=0pt
- \global\colcount=0
- \def\Emultitable{\global\setpercentfalse\cr\egroup\egroup}%
- %
- % To parse everything between @multitable and @item:
- \setuptable#1 \endsetuptable
- %
- % \everycr will reset column counter, \colcount, at the end of
- % each line. Every column entry will cause \colcount to advance by one.
- % The table preamble
- % looks at the current \colcount to find the correct column width.
- \everycr{\noalign{%
- %
- % \filbreak%% keeps underfull box messages off when table breaks over pages.
- % Maybe so, but it also creates really weird page breaks when the table
- % breaks over pages. Wouldn't \vfil be better? Wait until the problem
- % manifests itself, so it can be fixed for real --karl.
- \global\colcount=0\relax}}%
- %
- % This preamble sets up a generic column definition, which will
- % be used as many times as user calls for columns.
- % \vtop will set a single line and will also let text wrap and
- % continue for many paragraphs if desired.
- \halign\bgroup&\global\advance\colcount by 1\relax
- \multistrut\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname
- %
- % In order to keep entries from bumping into each other
- % we will add a \leftskip of \multitablecolspace to all columns after
- % the first one.
- %
- % If a template has been used, we will add \multitablecolspace
- % to the width of each template entry.
- %
- % If the user has set preamble in terms of percent of \hsize we will
- % use that dimension as the width of the column, and the \leftskip
- % will keep entries from bumping into each other. Table will start at
- % left margin and final column will justify at right margin.
- %
- % Make sure we don't inherit \rightskip from the outer environment.
- \rightskip=0pt
- \ifnum\colcount=1
- % The first column will be indented with the surrounding text.
- \advance\hsize by\leftskip
- \else
- \ifsetpercent \else
- % If user has not set preamble in terms of percent of \hsize
- % we will advance \hsize by \multitablecolspace.
- \advance\hsize by \multitablecolspace
- \fi
- % In either case we will make \leftskip=\multitablecolspace:
- \leftskip=\multitablecolspace
- \fi
- % Ignoring space at the beginning and end avoids an occasional spurious
- % blank line, when TeX decides to break the line at the space before the
- % box from the multistrut, so the strut ends up on a line by itself.
- % For example:
- % @multitable @columnfractions .11 .89
- % @item @code{#}
- % @tab Legal holiday which is valid in major parts of the whole country.
- % Is automatically provided with highlighting sequences respectively marking
- % characters.
- \noindent\ignorespaces##\unskip\multistrut}\cr
-}
-
-\def\setmultitablespacing{% test to see if user has set \multitablelinespace.
-% If so, do nothing. If not, give it an appropriate dimension based on
-% current baselineskip.
-\ifdim\multitablelinespace=0pt
-%% strut to put in table in case some entry doesn't have descenders,
-%% to keep lines equally spaced
-\let\multistrut = \strut
-%% Test to see if parskip is larger than space between lines of
-%% table. If not, do nothing.
-%% If so, set to same dimension as multitablelinespace.
-\else
-\gdef\multistrut{\vrule height\multitablelinespace depth\dp0
-width0pt\relax} \fi
-\ifdim\multitableparskip>\multitablelinespace
-\global\multitableparskip=\multitablelinespace
-\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
- %% than skip between lines in the table.
-\fi%
-\ifdim\multitableparskip=0pt
-\global\multitableparskip=\multitablelinespace
-\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
- %% than skip between lines in the table.
-\fi}
-
-
-\message{indexing,}
-% Index generation facilities
-
-% Define \newwrite to be identical to plain tex's \newwrite
-% except not \outer, so it can be used within \newindex.
-{\catcode`\@=11
-\gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
-
-% \newindex {foo} defines an index named foo.
-% It automatically defines \fooindex such that
-% \fooindex ...rest of line... puts an entry in the index foo.
-% It also defines \fooindfile to be the number of the output channel for
-% the file that accumulates this index. The file's extension is foo.
-% The name of an index should be no more than 2 characters long
-% for the sake of vms.
-%
-\def\newindex#1{%
- \iflinks
- \expandafter\newwrite \csname#1indfile\endcsname
- \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
- \fi
- \expandafter\xdef\csname#1index\endcsname{% % Define @#1index
- \noexpand\doindex{#1}}
-}
-
-% @defindex foo == \newindex{foo}
-
-\def\defindex{\parsearg\newindex}
-
-% Define @defcodeindex, like @defindex except put all entries in @code.
-
-\def\newcodeindex#1{%
- \iflinks
- \expandafter\newwrite \csname#1indfile\endcsname
- \openout \csname#1indfile\endcsname \jobname.#1
- \fi
- \expandafter\xdef\csname#1index\endcsname{%
- \noexpand\docodeindex{#1}}
-}
-
-\def\defcodeindex{\parsearg\newcodeindex}
-
-% @synindex foo bar makes index foo feed into index bar.
-% Do this instead of @defindex foo if you don't want it as a separate index.
-% The \closeout helps reduce unnecessary open files; the limit on the
-% Acorn RISC OS is a mere 16 files.
-\def\synindex#1 #2 {%
- \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
- \expandafter\closeout\csname#1indfile\endcsname
- \expandafter\let\csname#1indfile\endcsname=\synindexfoo
- \expandafter\xdef\csname#1index\endcsname{% define \xxxindex
- \noexpand\doindex{#2}}%
-}
-
-% @syncodeindex foo bar similar, but put all entries made for index foo
-% inside @code.
-\def\syncodeindex#1 #2 {%
- \expandafter\let\expandafter\synindexfoo\expandafter=\csname#2indfile\endcsname
- \expandafter\closeout\csname#1indfile\endcsname
- \expandafter\let\csname#1indfile\endcsname=\synindexfoo
- \expandafter\xdef\csname#1index\endcsname{% define \xxxindex
- \noexpand\docodeindex{#2}}%
-}
-
-% Define \doindex, the driver for all \fooindex macros.
-% Argument #1 is generated by the calling \fooindex macro,
-% and it is "foo", the name of the index.
-
-% \doindex just uses \parsearg; it calls \doind for the actual work.
-% This is because \doind is more useful to call from other macros.
-
-% There is also \dosubind {index}{topic}{subtopic}
-% which makes an entry in a two-level index such as the operation index.
-
-\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
-\def\singleindexer #1{\doind{\indexname}{#1}}
-
-% like the previous two, but they put @code around the argument.
-\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
-\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
-
-\def\indexdummies{%
-\def\ { }%
-% Take care of the plain tex accent commands.
-\def\"{\realbackslash "}%
-\def\`{\realbackslash `}%
-\def\'{\realbackslash '}%
-\def\^{\realbackslash ^}%
-\def\~{\realbackslash ~}%
-\def\={\realbackslash =}%
-\def\b{\realbackslash b}%
-\def\c{\realbackslash c}%
-\def\d{\realbackslash d}%
-\def\u{\realbackslash u}%
-\def\v{\realbackslash v}%
-\def\H{\realbackslash H}%
-% Take care of the plain tex special European modified letters.
-\def\oe{\realbackslash oe}%
-\def\ae{\realbackslash ae}%
-\def\aa{\realbackslash aa}%
-\def\OE{\realbackslash OE}%
-\def\AE{\realbackslash AE}%
-\def\AA{\realbackslash AA}%
-\def\o{\realbackslash o}%
-\def\O{\realbackslash O}%
-\def\l{\realbackslash l}%
-\def\L{\realbackslash L}%
-\def\ss{\realbackslash ss}%
-% Take care of texinfo commands likely to appear in an index entry.
-% (Must be a way to avoid doing expansion at all, and thus not have to
-% laboriously list every single command here.)
-\def\@{@}% will be @@ when we switch to @ as escape char.
-% Need these in case \tex is in effect and \{ is a \delimiter again.
-% But can't use \lbracecmd and \rbracecmd because texindex assumes
-% braces and backslashes are used only as delimiters.
-\let\{ = \mylbrace
-\let\} = \myrbrace
-\def\_{{\realbackslash _}}%
-\def\w{\realbackslash w }%
-\def\bf{\realbackslash bf }%
-%\def\rm{\realbackslash rm }%
-\def\sl{\realbackslash sl }%
-\def\sf{\realbackslash sf}%
-\def\tt{\realbackslash tt}%
-\def\gtr{\realbackslash gtr}%
-\def\less{\realbackslash less}%
-\def\hat{\realbackslash hat}%
-\def\TeX{\realbackslash TeX}%
-\def\dots{\realbackslash dots }%
-\def\result{\realbackslash result}%
-\def\equiv{\realbackslash equiv}%
-\def\expansion{\realbackslash expansion}%
-\def\print{\realbackslash print}%
-\def\error{\realbackslash error}%
-\def\point{\realbackslash point}%
-\def\copyright{\realbackslash copyright}%
-\def\tclose##1{\realbackslash tclose {##1}}%
-\def\code##1{\realbackslash code {##1}}%
-\def\uref##1{\realbackslash uref {##1}}%
-\def\url##1{\realbackslash url {##1}}%
-\def\env##1{\realbackslash env {##1}}%
-\def\command##1{\realbackslash command {##1}}%
-\def\option##1{\realbackslash option {##1}}%
-\def\dotless##1{\realbackslash dotless {##1}}%
-\def\samp##1{\realbackslash samp {##1}}%
-\def\,##1{\realbackslash ,{##1}}%
-\def\t##1{\realbackslash t {##1}}%
-\def\r##1{\realbackslash r {##1}}%
-\def\i##1{\realbackslash i {##1}}%
-\def\b##1{\realbackslash b {##1}}%
-\def\sc##1{\realbackslash sc {##1}}%
-\def\cite##1{\realbackslash cite {##1}}%
-\def\key##1{\realbackslash key {##1}}%
-\def\file##1{\realbackslash file {##1}}%
-\def\var##1{\realbackslash var {##1}}%
-\def\kbd##1{\realbackslash kbd {##1}}%
-\def\dfn##1{\realbackslash dfn {##1}}%
-\def\emph##1{\realbackslash emph {##1}}%
-\def\acronym##1{\realbackslash acronym {##1}}%
-%
-% Handle some cases of @value -- where the variable name does not
-% contain - or _, and the value does not contain any
-% (non-fully-expandable) commands.
-\let\value = \expandablevalue
-%
-\unsepspaces
-}
-
-% If an index command is used in an @example environment, any spaces
-% therein should become regular spaces in the raw index file, not the
-% expansion of \tie (\\leavevmode \penalty \@M \ ).
-{\obeyspaces
- \gdef\unsepspaces{\obeyspaces\let =\space}}
-
-% \indexnofonts no-ops all font-change commands.
-% This is used when outputting the strings to sort the index by.
-\def\indexdummyfont#1{#1}
-\def\indexdummytex{TeX}
-\def\indexdummydots{...}
-
-\def\indexnofonts{%
-% Just ignore accents.
-\let\,=\indexdummyfont
-\let\"=\indexdummyfont
-\let\`=\indexdummyfont
-\let\'=\indexdummyfont
-\let\^=\indexdummyfont
-\let\~=\indexdummyfont
-\let\==\indexdummyfont
-\let\b=\indexdummyfont
-\let\c=\indexdummyfont
-\let\d=\indexdummyfont
-\let\u=\indexdummyfont
-\let\v=\indexdummyfont
-\let\H=\indexdummyfont
-\let\dotless=\indexdummyfont
-% Take care of the plain tex special European modified letters.
-\def\oe{oe}%
-\def\ae{ae}%
-\def\aa{aa}%
-\def\OE{OE}%
-\def\AE{AE}%
-\def\AA{AA}%
-\def\o{o}%
-\def\O{O}%
-\def\l{l}%
-\def\L{L}%
-\def\ss{ss}%
-\let\w=\indexdummyfont
-\let\t=\indexdummyfont
-\let\r=\indexdummyfont
-\let\i=\indexdummyfont
-\let\b=\indexdummyfont
-\let\emph=\indexdummyfont
-\let\strong=\indexdummyfont
-\let\cite=\indexdummyfont
-\let\sc=\indexdummyfont
-%Don't no-op \tt, since it isn't a user-level command
-% and is used in the definitions of the active chars like <, >, |...
-%\let\tt=\indexdummyfont
-\let\tclose=\indexdummyfont
-\let\code=\indexdummyfont
-\let\url=\indexdummyfont
-\let\uref=\indexdummyfont
-\let\env=\indexdummyfont
-\let\command=\indexdummyfont
-\let\option=\indexdummyfont
-\let\file=\indexdummyfont
-\let\samp=\indexdummyfont
-\let\kbd=\indexdummyfont
-\let\key=\indexdummyfont
-\let\var=\indexdummyfont
-\let\TeX=\indexdummytex
-\let\dots=\indexdummydots
-\def\@{@}%
-}
-
-% To define \realbackslash, we must make \ not be an escape.
-% We must first make another character (@) an escape
-% so we do not become unable to do a definition.
-
-{\catcode`\@=0 \catcode`\\=\other
- @gdef@realbackslash{\}}
-
-\let\indexbackslash=0 %overridden during \printindex.
-\let\SETmarginindex=\relax % put index entries in margin (undocumented)?
-
-% For \ifx comparisons.
-\def\emptymacro{\empty}
-
-% Most index entries go through here, but \dosubind is the general case.
-%
-\def\doind#1#2{\dosubind{#1}{#2}\empty}
-
-% Workhorse for all \fooindexes.
-% #1 is name of index, #2 is stuff to put there, #3 is subentry --
-% \empty if called from \doind, as we usually are. The main exception
-% is with defuns, which call us directly.
-%
-\def\dosubind#1#2#3{%
- % Put the index entry in the margin if desired.
- \ifx\SETmarginindex\relax\else
- \insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}%
- \fi
- {%
- \count255=\lastpenalty
- {%
- \indexdummies % Must do this here, since \bf, etc expand at this stage
- \escapechar=`\\
- {%
- \let\folio = 0% We will expand all macros now EXCEPT \folio.
- \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
- % so it will be output as is; and it will print as backslash.
- %
- \def\thirdarg{#3}%
- %
- % If third arg is present, precede it with space in sort key.
- \ifx\thirdarg\emptymacro
- \let\subentry = \empty
- \else
- \def\subentry{ #3}%
- \fi
- %
- % First process the index-string with all font commands turned off
- % to get the string to sort by.
- {\indexnofonts \xdef\indexsorttmp{#2\subentry}}%
- %
- % Now produce the complete index entry, with both the sort key and the
- % original text, including any font commands.
- \toks0 = {#2}%
- \edef\temp{%
- \write\csname#1indfile\endcsname{%
- \realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}%
- }%
- %
- % If third (subentry) arg is present, add it to the index string.
- \ifx\thirdarg\emptymacro \else
- \toks0 = {#3}%
- \edef\temp{\temp{\the\toks0}}%
- \fi
- %
- % If a skip is the last thing on the list now, preserve it
- % by backing up by \lastskip, doing the \write, then inserting
- % the skip again. Otherwise, the whatsit generated by the
- % \write will make \lastskip zero. The result is that sequences
- % like this:
- % @end defun
- % @tindex whatever
- % @defun ...
- % will have extra space inserted, because the \medbreak in the
- % start of the @defun won't see the skip inserted by the @end of
- % the previous defun.
- %
- % But don't do any of this if we're not in vertical mode. We
- % don't want to do a \vskip and prematurely end a paragraph.
- %
- % Avoid page breaks due to these extra skips, too.
- %
- \iflinks
- \ifvmode
- \skip0 = \lastskip
- \ifdim\lastskip = 0pt \else \nobreak\vskip-\lastskip \fi
- \fi
- %
- \temp % do the write
- %
- %
- \ifvmode \ifdim\skip0 = 0pt \else \nobreak\vskip\skip0 \fi \fi
- \fi
- }%
- }%
- \penalty\count255
- }%
-}
-
-% The index entry written in the file actually looks like
-% \entry {sortstring}{page}{topic}
-% or
-% \entry {sortstring}{page}{topic}{subtopic}
-% The texindex program reads in these files and writes files
-% containing these kinds of lines:
-% \initial {c}
-% before the first topic whose initial is c
-% \entry {topic}{pagelist}
-% for a topic that is used without subtopics
-% \primary {topic}
-% for the beginning of a topic that is used with subtopics
-% \secondary {subtopic}{pagelist}
-% for each subtopic.
-
-% Define the user-accessible indexing commands
-% @findex, @vindex, @kindex, @cindex.
-
-\def\findex {\fnindex}
-\def\kindex {\kyindex}
-\def\cindex {\cpindex}
-\def\vindex {\vrindex}
-\def\tindex {\tpindex}
-\def\pindex {\pgindex}
-
-\def\cindexsub {\begingroup\obeylines\cindexsub}
-{\obeylines %
-\gdef\cindexsub "#1" #2^^M{\endgroup %
-\dosubind{cp}{#2}{#1}}}
-
-% Define the macros used in formatting output of the sorted index material.
-
-% @printindex causes a particular index (the ??s file) to get printed.
-% It does not print any chapter heading (usually an @unnumbered).
-%
-\def\printindex{\parsearg\doprintindex}
-\def\doprintindex#1{\begingroup
- \dobreak \chapheadingskip{10000}%
- %
- \indexfonts \rm
- \tolerance = 9500
- \indexbreaks
- %
- % See if the index file exists and is nonempty.
- % Change catcode of @ here so that if the index file contains
- % \initial {@}
- % as its first line, TeX doesn't complain about mismatched braces
- % (because it thinks @} is a control sequence).
- \catcode`\@ = 11
- \openin 1 \jobname.#1s
- \ifeof 1
- % \enddoublecolumns gets confused if there is no text in the index,
- % and it loses the chapter title and the aux file entries for the
- % index. The easiest way to prevent this problem is to make sure
- % there is some text.
- (Index is nonexistent)
- \else
- %
- % If the index file exists but is empty, then \openin leaves \ifeof
- % false. We have to make TeX try to read something from the file, so
- % it can discover if there is anything in it.
- \read 1 to \temp
- \ifeof 1
- (Index is empty)
- \else
- % Index files are almost Texinfo source, but we use \ as the escape
- % character. It would be better to use @, but that's too big a change
- % to make right now.
- \def\indexbackslash{\rawbackslashxx}%
- \catcode`\\ = 0
- \escapechar = `\\
- \begindoublecolumns
- \input \jobname.#1s
- \enddoublecolumns
- \fi
- \fi
- \closein 1
-\endgroup}
-
-% These macros are used by the sorted index file itself.
-% Change them to control the appearance of the index.
-
-\def\initial#1{{%
- % Some minor font changes for the special characters.
- \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
- %
- % Remove any glue we may have, we'll be inserting our own.
- \removelastskip
- %
- % We like breaks before the index initials, so insert a bonus.
- \penalty -300
- %
- % Typeset the initial. Making this add up to a whole number of
- % baselineskips increases the chance of the dots lining up from column
- % to column. It still won't often be perfect, because of the stretch
- % we need before each entry, but it's better.
- %
- % No shrink because it confuses \balancecolumns.
- \vskip 1.67\baselineskip plus .5\baselineskip
- \leftline{\secbf #1}%
- \vskip .33\baselineskip plus .1\baselineskip
- %
- % Do our best not to break after the initial.
- \nobreak
-}}
-
-% This typesets a paragraph consisting of #1, dot leaders, and then #2
-% flush to the right margin. It is used for index and table of contents
-% entries. The paragraph is indented by \leftskip.
-%
-\def\entry#1#2{\begingroup
- %
- % Start a new paragraph if necessary, so our assignments below can't
- % affect previous text.
- \par
- %
- % Do not fill out the last line with white space.
- \parfillskip = 0in
- %
- % No extra space above this paragraph.
- \parskip = 0in
- %
- % Do not prefer a separate line ending with a hyphen to fewer lines.
- \finalhyphendemerits = 0
- %
- % \hangindent is only relevant when the entry text and page number
- % don't both fit on one line. In that case, bob suggests starting the
- % dots pretty far over on the line. Unfortunately, a large
- % indentation looks wrong when the entry text itself is broken across
- % lines. So we use a small indentation and put up with long leaders.
- %
- % \hangafter is reset to 1 (which is the value we want) at the start
- % of each paragraph, so we need not do anything with that.
- \hangindent = 2em
- %
- % When the entry text needs to be broken, just fill out the first line
- % with blank space.
- \rightskip = 0pt plus1fil
- %
- % A bit of stretch before each entry for the benefit of balancing columns.
- \vskip 0pt plus1pt
- %
- % Start a ``paragraph'' for the index entry so the line breaking
- % parameters we've set above will have an effect.
- \noindent
- %
- % Insert the text of the index entry. TeX will do line-breaking on it.
- #1%
- % The following is kludged to not output a line of dots in the index if
- % there are no page numbers. The next person who breaks this will be
- % cursed by a Unix daemon.
- \def\tempa{{\rm }}%
- \def\tempb{#2}%
- \edef\tempc{\tempa}%
- \edef\tempd{\tempb}%
- \ifx\tempc\tempd\ \else%
- %
- % If we must, put the page number on a line of its own, and fill out
- % this line with blank space. (The \hfil is overwhelmed with the
- % fill leaders glue in \indexdotfill if the page number does fit.)
- \hfil\penalty50
- \null\nobreak\indexdotfill % Have leaders before the page number.
- %
- % The `\ ' here is removed by the implicit \unskip that TeX does as
- % part of (the primitive) \par. Without it, a spurious underfull
- % \hbox ensues.
- \ #2% The page number ends the paragraph.
- \fi%
- \par
-\endgroup}
-
-% Like \dotfill except takes at least 1 em.
-\def\indexdotfill{\cleaders
- \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill}
-
-\def\primary #1{\line{#1\hfil}}
-
-\newskip\secondaryindent \secondaryindent=0.5cm
-
-\def\secondary #1#2{
-{\parfillskip=0in \parskip=0in
-\hangindent =1in \hangafter=1
-\noindent\hskip\secondaryindent\hbox{#1}\indexdotfill #2\par
-}}
-
-% Define two-column mode, which we use to typeset indexes.
-% Adapted from the TeXbook, page 416, which is to say,
-% the manmac.tex format used to print the TeXbook itself.
-\catcode`\@=11
-
-\newbox\partialpage
-\newdimen\doublecolumnhsize
-
-\def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
- % Grab any single-column material above us.
- \output = {\global\setbox\partialpage = \vbox{%
- %
- % Here is a possibility not foreseen in manmac: if we accumulate a
- % whole lot of material, we might end up calling this \output
- % routine twice in a row (see the doublecol-lose test, which is
- % essentially a couple of indexes with @setchapternewpage off). In
- % that case, we must prevent the second \partialpage from
- % simply overwriting the first, causing us to lose the page.
- % This will preserve it until a real output routine can ship it
- % out. Generally, \partialpage will be empty when this runs and
- % this will be a no-op.
- \unvbox\partialpage
- %
- % Unvbox the main output page.
- \unvbox255
- \kern-\topskip \kern\baselineskip
- }}%
- \eject % run that output routine to set \partialpage
- %
- % Use the double-column output routine for subsequent pages.
- \output = {\doublecolumnout}%
- %
- % Change the page size parameters. We could do this once outside this
- % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
- % format, but then we repeat the same computation. Repeating a couple
- % of assignments once per index is clearly meaningless for the
- % execution time, so we may as well do it in one place.
- %
- % First we halve the line length, less a little for the gutter between
- % the columns. We compute the gutter based on the line length, so it
- % changes automatically with the paper format. The magic constant
- % below is chosen so that the gutter has the same value (well, +-<1pt)
- % as it did when we hard-coded it.
- %
- % We put the result in a separate register, \doublecolumhsize, so we
- % can restore it in \pagesofar, after \hsize itself has (potentially)
- % been clobbered.
- %
- \doublecolumnhsize = \hsize
- \advance\doublecolumnhsize by -.04154\hsize
- \divide\doublecolumnhsize by 2
- \hsize = \doublecolumnhsize
- %
- % Double the \vsize as well. (We don't need a separate register here,
- % since nobody clobbers \vsize.)
- \advance\vsize by -\ht\partialpage
- \vsize = 2\vsize
-}
-
-% The double-column output routine for all double-column pages except
-% the last.
-%
-\def\doublecolumnout{%
- \splittopskip=\topskip \splitmaxdepth=\maxdepth
- % Get the available space for the double columns -- the normal
- % (undoubled) page height minus any material left over from the
- % previous page.
- \dimen@ = \vsize
- \divide\dimen@ by 2
- %
- % box0 will be the left-hand column, box2 the right.
- \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
- \onepageout\pagesofar
- \unvbox255
- \penalty\outputpenalty
-}
-\def\pagesofar{%
- % Re-output the contents of the output page -- any previous material,
- % followed by the two boxes we just split, in box0 and box2.
- \advance\vsize by \ht\partialpage
- \unvbox\partialpage
- %
- \hsize = \doublecolumnhsize
- \wd0=\hsize \wd2=\hsize
- \hbox to\pagewidth{\box0\hfil\box2}%
-}
-\def\enddoublecolumns{%
- \output = {%
- % Split the last of the double-column material. Leave it on the
- % current page, no automatic page break.
- \balancecolumns
- %
- % If we end up splitting too much material for the current page,
- % though, there will be another page break right after this \output
- % invocation ends. Having called \balancecolumns once, we do not
- % want to call it again. Therefore, reset \output to its normal
- % definition right away. (We hope \balancecolumns will never be
- % called on to balance too much material, but if it is, this makes
- % the output somewhat more palatable.)
- \global\output = {\onepageout{\pagecontents\PAGE}}%
- }%
- \eject
- \endgroup % started in \begindoublecolumns
- %
- % \pagegoal was set to the doubled \vsize above, since we restarted
- % the current page. We're now back to normal single-column
- % typesetting, so reset \pagegoal to the normal \vsize (after the
- % \endgroup where \vsize got restored).
- \pagegoal = \vsize
-}
-\def\balancecolumns{%
- % Called at the end of the double column material.
- \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
- \dimen@ = \ht0
- \advance\dimen@ by \topskip
- \advance\dimen@ by-\baselineskip
- \divide\dimen@ by 2 % target to split to
- %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}%
- \splittopskip = \topskip
- % Loop until we get a decent breakpoint.
- {%
- \vbadness = 10000
- \loop
- \global\setbox3 = \copy0
- \global\setbox1 = \vsplit3 to \dimen@
- \ifdim\ht3>\dimen@
- \global\advance\dimen@ by 1pt
- \repeat
- }%
- %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
- \setbox0=\vbox to\dimen@{\unvbox1}%
- \setbox2=\vbox to\dimen@{\unvbox3}%
- %
- \pagesofar
-}
-\catcode`\@ = \other
-
-
-\message{sectioning,}
-% Define chapters, sections, etc.
-
-\newcount\chapno
-\newcount\secno \secno=0
-\newcount\subsecno \subsecno=0
-\newcount\subsubsecno \subsubsecno=0
-
-% This counter is funny since it counts through charcodes of letters A, B, ...
-\newcount\appendixno \appendixno = `\@
-\def\appendixletter{\char\the\appendixno}
-
-% Each @chapter defines this as the name of the chapter.
-% page headings and footings can use it. @section does likewise.
-\def\thischapter{}
-\def\thissection{}
-
-\newcount\absseclevel % used to calculate proper heading level
-\newcount\secbase\secbase=0 % @raise/lowersections modify this count
-
-% @raisesections: treat @section as chapter, @subsection as section, etc.
-\def\raisesections{\global\advance\secbase by -1}
-\let\up=\raisesections % original BFox name
-
-% @lowersections: treat @chapter as section, @section as subsection, etc.
-\def\lowersections{\global\advance\secbase by 1}
-\let\down=\lowersections % original BFox name
-
-% Choose a numbered-heading macro
-% #1 is heading level if unmodified by @raisesections or @lowersections
-% #2 is text for heading
-\def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
-\ifcase\absseclevel
- \chapterzzz{#2}
-\or
- \seczzz{#2}
-\or
- \numberedsubseczzz{#2}
-\or
- \numberedsubsubseczzz{#2}
-\else
- \ifnum \absseclevel<0
- \chapterzzz{#2}
- \else
- \numberedsubsubseczzz{#2}
- \fi
-\fi
-}
-
-% like \numhead, but chooses appendix heading levels
-\def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
-\ifcase\absseclevel
- \appendixzzz{#2}
-\or
- \appendixsectionzzz{#2}
-\or
- \appendixsubseczzz{#2}
-\or
- \appendixsubsubseczzz{#2}
-\else
- \ifnum \absseclevel<0
- \appendixzzz{#2}
- \else
- \appendixsubsubseczzz{#2}
- \fi
-\fi
-}
-
-% like \numhead, but chooses numberless heading levels
-\def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
-\ifcase\absseclevel
- \unnumberedzzz{#2}
-\or
- \unnumberedseczzz{#2}
-\or
- \unnumberedsubseczzz{#2}
-\or
- \unnumberedsubsubseczzz{#2}
-\else
- \ifnum \absseclevel<0
- \unnumberedzzz{#2}
- \else
- \unnumberedsubsubseczzz{#2}
- \fi
-\fi
-}
-
-% @chapter, @appendix, @unnumbered.
-\def\thischaptername{No Chapter Title}
-\outer\def\chapter{\parsearg\chapteryyy}
-\def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz
-\def\chapterzzz #1{%
-\secno=0 \subsecno=0 \subsubsecno=0
-\global\advance \chapno by 1 \message{\putwordChapter\space \the\chapno}%
-\chapmacro {#1}{\the\chapno}%
-\gdef\thissection{#1}%
-\gdef\thischaptername{#1}%
-% We don't substitute the actual chapter name into \thischapter
-% because we don't want its macros evaluated now.
-\xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash chapentry{\the\toks0}%
- {\the\chapno}}}%
-\temp
-\donoderef
-\global\let\section = \numberedsec
-\global\let\subsection = \numberedsubsec
-\global\let\subsubsection = \numberedsubsubsec
-}
-
-\outer\def\appendix{\parsearg\appendixyyy}
-\def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz
-\def\appendixzzz #1{%
-\secno=0 \subsecno=0 \subsubsecno=0
-\global\advance \appendixno by 1
-\message{\putwordAppendix\space \appendixletter}%
-\chapmacro {#1}{\putwordAppendix{} \appendixletter}%
-\gdef\thissection{#1}%
-\gdef\thischaptername{#1}%
-\xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash chapentry{\the\toks0}%
- {\putwordAppendix{} \appendixletter}}}%
-\temp
-\appendixnoderef
-\global\let\section = \appendixsec
-\global\let\subsection = \appendixsubsec
-\global\let\subsubsection = \appendixsubsubsec
-}
-
-% @centerchap is like @unnumbered, but the heading is centered.
-\outer\def\centerchap{\parsearg\centerchapyyy}
-\def\centerchapyyy #1{{\let\unnumbchapmacro=\centerchapmacro \unnumberedyyy{#1}}}
-
-% @top is like @unnumbered.
-\outer\def\top{\parsearg\unnumberedyyy}
-
-\outer\def\unnumbered{\parsearg\unnumberedyyy}
-\def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz
-\def\unnumberedzzz #1{%
-\secno=0 \subsecno=0 \subsubsecno=0
-%
-% This used to be simply \message{#1}, but TeX fully expands the
-% argument to \message. Therefore, if #1 contained @-commands, TeX
-% expanded them. For example, in `@unnumbered The @cite{Book}', TeX
-% expanded @cite (which turns out to cause errors because \cite is meant
-% to be executed, not expanded).
-%
-% Anyway, we don't want the fully-expanded definition of @cite to appear
-% as a result of the \message, we just want `@cite' itself. We use
-% \the to achieve this: TeX expands \the only once,
-% simply yielding the contents of . (We also do this for
-% the toc entries.)
-\toks0 = {#1}\message{(\the\toks0)}%
-%
-\unnumbchapmacro {#1}%
-\gdef\thischapter{#1}\gdef\thissection{#1}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash unnumbchapentry{\the\toks0}}}%
-\temp
-\unnumbnoderef
-\global\let\section = \unnumberedsec
-\global\let\subsection = \unnumberedsubsec
-\global\let\subsubsection = \unnumberedsubsubsec
-}
-
-% Sections.
-\outer\def\numberedsec{\parsearg\secyyy}
-\def\secyyy #1{\numhead1{#1}} % normally calls seczzz
-\def\seczzz #1{%
-\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
-\gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash secentry{\the\toks0}%
- {\the\chapno}{\the\secno}}}%
-\temp
-\donoderef
-\nobreak
-}
-
-\outer\def\appendixsection{\parsearg\appendixsecyyy}
-\outer\def\appendixsec{\parsearg\appendixsecyyy}
-\def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz
-\def\appendixsectionzzz #1{%
-\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
-\gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash secentry{\the\toks0}%
- {\appendixletter}{\the\secno}}}%
-\temp
-\appendixnoderef
-\nobreak
-}
-
-\outer\def\unnumberedsec{\parsearg\unnumberedsecyyy}
-\def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz
-\def\unnumberedseczzz #1{%
-\plainsecheading {#1}\gdef\thissection{#1}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash unnumbsecentry{\the\toks0}}}%
-\temp
-\unnumbnoderef
-\nobreak
-}
-
-% Subsections.
-\outer\def\numberedsubsec{\parsearg\numberedsubsecyyy}
-\def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz
-\def\numberedsubseczzz #1{%
-\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
-\subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash subsecentry{\the\toks0}%
- {\the\chapno}{\the\secno}{\the\subsecno}}}%
-\temp
-\donoderef
-\nobreak
-}
-
-\outer\def\appendixsubsec{\parsearg\appendixsubsecyyy}
-\def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz
-\def\appendixsubseczzz #1{%
-\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
-\subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash subsecentry{\the\toks0}%
- {\appendixletter}{\the\secno}{\the\subsecno}}}%
-\temp
-\appendixnoderef
-\nobreak
-}
-
-\outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy}
-\def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz
-\def\unnumberedsubseczzz #1{%
-\plainsubsecheading {#1}\gdef\thissection{#1}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash unnumbsubsecentry%
- {\the\toks0}}}%
-\temp
-\unnumbnoderef
-\nobreak
-}
-
-% Subsubsections.
-\outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy}
-\def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz
-\def\numberedsubsubseczzz #1{%
-\gdef\thissection{#1}\global\advance \subsubsecno by 1 %
-\subsubsecheading {#1}
- {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash subsubsecentry{\the\toks0}%
- {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}}}%
-\temp
-\donoderef
-\nobreak
-}
-
-\outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy}
-\def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz
-\def\appendixsubsubseczzz #1{%
-\gdef\thissection{#1}\global\advance \subsubsecno by 1 %
-\subsubsecheading {#1}
- {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash subsubsecentry{\the\toks0}%
- {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}}}%
-\temp
-\appendixnoderef
-\nobreak
-}
-
-\outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy}
-\def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz
-\def\unnumberedsubsubseczzz #1{%
-\plainsubsubsecheading {#1}\gdef\thissection{#1}%
-\toks0 = {#1}%
-\edef\temp{\noexpand\writetocentry{\realbackslash unnumbsubsubsecentry%
- {\the\toks0}}}%
-\temp
-\unnumbnoderef
-\nobreak
-}
-
-% These are variants which are not "outer", so they can appear in @ifinfo.
-% Actually, they should now be obsolete; ordinary section commands should work.
-\def\infotop{\parsearg\unnumberedzzz}
-\def\infounnumbered{\parsearg\unnumberedzzz}
-\def\infounnumberedsec{\parsearg\unnumberedseczzz}
-\def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz}
-\def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
-
-\def\infoappendix{\parsearg\appendixzzz}
-\def\infoappendixsec{\parsearg\appendixseczzz}
-\def\infoappendixsubsec{\parsearg\appendixsubseczzz}
-\def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz}
-
-\def\infochapter{\parsearg\chapterzzz}
-\def\infosection{\parsearg\sectionzzz}
-\def\infosubsection{\parsearg\subsectionzzz}
-\def\infosubsubsection{\parsearg\subsubsectionzzz}
-
-% These macros control what the section commands do, according
-% to what kind of chapter we are in (ordinary, appendix, or unnumbered).
-% Define them by default for a numbered chapter.
-\global\let\section = \numberedsec
-\global\let\subsection = \numberedsubsec
-\global\let\subsubsection = \numberedsubsubsec
-
-% Define @majorheading, @heading and @subheading
-
-% NOTE on use of \vbox for chapter headings, section headings, and such:
-% 1) We use \vbox rather than the earlier \line to permit
-% overlong headings to fold.
-% 2) \hyphenpenalty is set to 10000 because hyphenation in a
-% heading is obnoxious; this forbids it.
-% 3) Likewise, headings look best if no \parindent is used, and
-% if justification is not attempted. Hence \raggedright.
-
-
-\def\majorheading{\parsearg\majorheadingzzz}
-\def\majorheadingzzz #1{%
-{\advance\chapheadingskip by 10pt \chapbreak }%
-{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
- \parindent=0pt\raggedright
- \rm #1\hfill}}\bigskip \par\penalty 200}
-
-\def\chapheading{\parsearg\chapheadingzzz}
-\def\chapheadingzzz #1{\chapbreak %
-{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
- \parindent=0pt\raggedright
- \rm #1\hfill}}\bigskip \par\penalty 200}
-
-% @heading, @subheading, @subsubheading.
-\def\heading{\parsearg\plainsecheading}
-\def\subheading{\parsearg\plainsubsecheading}
-\def\subsubheading{\parsearg\plainsubsubsecheading}
-
-% These macros generate a chapter, section, etc. heading only
-% (including whitespace, linebreaking, etc. around it),
-% given all the information in convenient, parsed form.
-
-%%% Args are the skip and penalty (usually negative)
-\def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
-
-\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
-
-%%% Define plain chapter starts, and page on/off switching for it
-% Parameter controlling skip before chapter headings (if needed)
-
-\newskip\chapheadingskip
-
-\def\chapbreak{\dobreak \chapheadingskip {-4000}}
-\def\chappager{\par\vfill\supereject}
-\def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi}
-
-\def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
-
-\def\CHAPPAGoff{%
-\global\let\contentsalignmacro = \chappager
-\global\let\pchapsepmacro=\chapbreak
-\global\let\pagealignmacro=\chappager}
-
-\def\CHAPPAGon{%
-\global\let\contentsalignmacro = \chappager
-\global\let\pchapsepmacro=\chappager
-\global\let\pagealignmacro=\chappager
-\global\def\HEADINGSon{\HEADINGSsingle}}
-
-\def\CHAPPAGodd{
-\global\let\contentsalignmacro = \chapoddpage
-\global\let\pchapsepmacro=\chapoddpage
-\global\let\pagealignmacro=\chapoddpage
-\global\def\HEADINGSon{\HEADINGSdouble}}
-
-\CHAPPAGon
-
-\def\CHAPFplain{
-\global\let\chapmacro=\chfplain
-\global\let\unnumbchapmacro=\unnchfplain
-\global\let\centerchapmacro=\centerchfplain}
-
-% Plain chapter opening.
-% #1 is the text, #2 the chapter number or empty if unnumbered.
-\def\chfplain#1#2{%
- \pchapsepmacro
- {%
- \chapfonts \rm
- \def\chapnum{#2}%
- \setbox0 = \hbox{#2\ifx\chapnum\empty\else\enspace\fi}%
- \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
- \hangindent = \wd0 \centerparametersmaybe
- \unhbox0 #1\par}%
- }%
- \nobreak\bigskip % no page break after a chapter title
- \nobreak
-}
-
-% Plain opening for unnumbered.
-\def\unnchfplain#1{\chfplain{#1}{}}
-
-% @centerchap -- centered and unnumbered.
-\let\centerparametersmaybe = \relax
-\def\centerchfplain#1{{%
- \def\centerparametersmaybe{%
- \advance\rightskip by 3\rightskip
- \leftskip = \rightskip
- \parfillskip = 0pt
- }%
- \chfplain{#1}{}%
-}}
-
-\CHAPFplain % The default
-
-\def\unnchfopen #1{%
-\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
- \parindent=0pt\raggedright
- \rm #1\hfill}}\bigskip \par\nobreak
-}
-
-\def\chfopen #1#2{\chapoddpage {\chapfonts
-\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
-\par\penalty 5000 %
-}
-
-\def\centerchfopen #1{%
-\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
- \parindent=0pt
- \hfill {\rm #1}\hfill}}\bigskip \par\nobreak
-}
-
-\def\CHAPFopen{
-\global\let\chapmacro=\chfopen
-\global\let\unnumbchapmacro=\unnchfopen
-\global\let\centerchapmacro=\centerchfopen}
-
-
-% Section titles.
-\newskip\secheadingskip
-\def\secheadingbreak{\dobreak \secheadingskip {-1000}}
-\def\secheading#1#2#3{\sectionheading{sec}{#2.#3}{#1}}
-\def\plainsecheading#1{\sectionheading{sec}{}{#1}}
-
-% Subsection titles.
-\newskip \subsecheadingskip
-\def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
-\def\subsecheading#1#2#3#4{\sectionheading{subsec}{#2.#3.#4}{#1}}
-\def\plainsubsecheading#1{\sectionheading{subsec}{}{#1}}
-
-% Subsubsection titles.
-\let\subsubsecheadingskip = \subsecheadingskip
-\let\subsubsecheadingbreak = \subsecheadingbreak
-\def\subsubsecheading#1#2#3#4#5{\sectionheading{subsubsec}{#2.#3.#4.#5}{#1}}
-\def\plainsubsubsecheading#1{\sectionheading{subsubsec}{}{#1}}
-
-
-% Print any size section title.
-%
-% #1 is the section type (sec/subsec/subsubsec), #2 is the section
-% number (maybe empty), #3 the text.
-\def\sectionheading#1#2#3{%
- {%
- \expandafter\advance\csname #1headingskip\endcsname by \parskip
- \csname #1headingbreak\endcsname
- }%
- {%
- % Switch to the right set of fonts.
- \csname #1fonts\endcsname \rm
- %
- % Only insert the separating space if we have a section number.
- \def\secnum{#2}%
- \setbox0 = \hbox{#2\ifx\secnum\empty\else\enspace\fi}%
- %
- \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
- \hangindent = \wd0 % zero if no section number
- \unhbox0 #3}%
- }%
- \ifdim\parskip<10pt \nobreak\kern10pt\nobreak\kern-\parskip\fi \nobreak
-}
-
-
-\message{toc,}
-\newwrite\tocfile
-
-% Write an entry to the toc file, opening it if necessary.
-% Called from @chapter, etc. We supply {\folio} at the end of the
-% argument, which will end up as the last argument to the \...entry macro.
-%
-% We open the .toc file here instead of at @setfilename or any other
-% given time so that @contents can be put in the document anywhere.
-%
-\newif\iftocfileopened
-\def\writetocentry#1{%
- \iftocfileopened\else
- \immediate\openout\tocfile = \jobname.toc
- \global\tocfileopenedtrue
- \fi
- \iflinks \write\tocfile{#1{\folio}}\fi
-}
-
-\newskip\contentsrightmargin \contentsrightmargin=1in
-\newcount\savepageno
-\newcount\lastnegativepageno \lastnegativepageno = -1
-
-% Finish up the main text and prepare to read what we've written
-% to \tocfile.
-%
-\def\startcontents#1{%
- % If @setchapternewpage on, and @headings double, the contents should
- % start on an odd page, unlike chapters. Thus, we maintain
- % \contentsalignmacro in parallel with \pagealignmacro.
- % From: Torbjorn Granlund
- \contentsalignmacro
- \immediate\closeout\tocfile
- %
- % Don't need to put `Contents' or `Short Contents' in the headline.
- % It is abundantly clear what they are.
- \unnumbchapmacro{#1}\def\thischapter{}%
- \savepageno = \pageno
- \begingroup % Set up to handle contents files properly.
- \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11
- % We can't do this, because then an actual ^ in a section
- % title fails, e.g., @chapter ^ -- exponentiation. --karl, 9jul97.
- %\catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi
- \raggedbottom % Worry more about breakpoints than the bottom.
- \advance\hsize by -\contentsrightmargin % Don't use the full line length.
- %
- % Roman numerals for page numbers.
- \ifnum \pageno>0 \pageno = \lastnegativepageno \fi
-}
-
-
-% Normal (long) toc.
-\def\contents{%
- \startcontents{\putwordTableofContents}%
- \openin 1 \jobname.toc
- \ifeof 1 \else
- \closein 1
- \input \jobname.toc
- \fi
- \vfill \eject
- \endgroup
- \lastnegativepageno = \pageno
- \pageno = \savepageno
-}
-
-% And just the chapters.
-\def\summarycontents{%
- \startcontents{\putwordShortContents}%
- %
- \let\chapentry = \shortchapentry
- \let\unnumbchapentry = \shortunnumberedentry
- % We want a true roman here for the page numbers.
- \secfonts
- \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl
- \rm
- \hyphenpenalty = 10000
- \advance\baselineskip by 1pt % Open it up a little.
- \def\secentry ##1##2##3##4{}
- \def\unnumbsecentry ##1##2{}
- \def\subsecentry ##1##2##3##4##5{}
- \def\unnumbsubsecentry ##1##2{}
- \def\subsubsecentry ##1##2##3##4##5##6{}
- \def\unnumbsubsubsecentry ##1##2{}
- \openin 1 \jobname.toc
- \ifeof 1 \else
- \closein 1
- \input \jobname.toc
- \fi
- \vfill \eject
- \endgroup
- \lastnegativepageno = \pageno
- \pageno = \savepageno
-}
-\let\shortcontents = \summarycontents
-
-% These macros generate individual entries in the table of contents.
-% The first argument is the chapter or section name.
-% The last argument is the page number.
-% The arguments in between are the chapter number, section number, ...
-
-% Chapter-level things, for both the long and short contents.
-\def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}}
-
-% See comments in \dochapentry re vbox and related settings
-\def\shortchapentry#1#2#3{%
- \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno{#3}}%
-}
-
-% Typeset the label for a chapter or appendix for the short contents.
-% The arg is, e.g. `Appendix A' for an appendix, or `3' for a chapter.
-% We could simplify the code here by writing out an \appendixentry
-% command in the toc file for appendices, instead of using \chapentry
-% for both, but it doesn't seem worth it.
-\setbox0 = \hbox{\shortcontrm \putwordAppendix }
-\newdimen\shortappendixwidth \shortappendixwidth = \wd0
-
-\def\shortchaplabel#1{%
- % We typeset #1 in a box of constant width, regardless of the text of
- % #1, so the chapter titles will come out aligned.
- \setbox0 = \hbox{#1}%
- \dimen0 = \ifdim\wd0 > \shortappendixwidth \shortappendixwidth \else 0pt \fi
- %
- % This space should be plenty, since a single number is .5em, and the
- % widest letter (M) is 1em, at least in the Computer Modern fonts.
- % (This space doesn't include the extra space that gets added after
- % the label; that gets put in by \shortchapentry above.)
- \advance\dimen0 by 1.1em
- \hbox to \dimen0{#1\hfil}%
-}
-
-\def\unnumbchapentry#1#2{\dochapentry{#1}{#2}}
-\def\shortunnumberedentry#1#2{\tocentry{#1}{\doshortpageno{#2}}}
-
-% Sections.
-\def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}
-\def\unnumbsecentry#1#2{\dosecentry{#1}{#2}}
-
-% Subsections.
-\def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}}
-\def\unnumbsubsecentry#1#2{\dosubsecentry{#1}{#2}}
-
-% And subsubsections.
-\def\subsubsecentry#1#2#3#4#5#6{%
- \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
-\def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}
-
-% This parameter controls the indentation of the various levels.
-\newdimen\tocindent \tocindent = 3pc
-
-% Now for the actual typesetting. In all these, #1 is the text and #2 is the
-% page number.
-%
-% If the toc has to be broken over pages, we want it to be at chapters
-% if at all possible; hence the \penalty.
-\def\dochapentry#1#2{%
- \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
- \begingroup
- \chapentryfonts
- \tocentry{#1}{\dopageno{#2}}%
- \endgroup
- \nobreak\vskip .25\baselineskip plus.1\baselineskip
-}
-
-\def\dosecentry#1#2{\begingroup
- \secentryfonts \leftskip=\tocindent
- \tocentry{#1}{\dopageno{#2}}%
-\endgroup}
-
-\def\dosubsecentry#1#2{\begingroup
- \subsecentryfonts \leftskip=2\tocindent
- \tocentry{#1}{\dopageno{#2}}%
-\endgroup}
-
-\def\dosubsubsecentry#1#2{\begingroup
- \subsubsecentryfonts \leftskip=3\tocindent
- \tocentry{#1}{\dopageno{#2}}%
-\endgroup}
-
-% Final typesetting of a toc entry; we use the same \entry macro as for
-% the index entries, but we want to suppress hyphenation here. (We
-% can't do that in the \entry macro, since index entries might consist
-% of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.)
-\def\tocentry#1#2{\begingroup
- \vskip 0pt plus1pt % allow a little stretch for the sake of nice page breaks
- % Do not use \turnoffactive in these arguments. Since the toc is
- % typeset in cmr, so characters such as _ would come out wrong; we
- % have to do the usual translation tricks.
- \entry{#1}{#2}%
-\endgroup}
-
-% Space between chapter (or whatever) number and the title.
-\def\labelspace{\hskip1em \relax}
-
-\def\dopageno#1{{\rm #1}}
-\def\doshortpageno#1{{\rm #1}}
-
-\def\chapentryfonts{\secfonts \rm}
-\def\secentryfonts{\textfonts}
-\let\subsecentryfonts = \textfonts
-\let\subsubsecentryfonts = \textfonts
-
-
-\message{environments,}
-
-% Since these characters are used in examples, it should be an even number of
-% \tt widths. Each \tt character is 1en, so two makes it 1em.
-% Furthermore, these definitions must come after we define our fonts.
-\newbox\dblarrowbox \newbox\longdblarrowbox
-\newbox\pushcharbox \newbox\bullbox
-\newbox\equivbox \newbox\errorbox
-
-%{\tentt
-%\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}
-%\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}
-%\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil}
-%\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil}
-% Adapted from the manmac format (p.420 of TeXbook)
-%\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width .85ex
-% depth .1ex\hfil}
-%}
-
-% @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
-\def\point{$\star$}
-\def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
-\def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
-\def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
-\def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
-
-% Adapted from the TeXbook's \boxit.
-{\tentt \global\dimen0 = 3em}% Width of the box.
-\dimen2 = .55pt % Thickness of rules
-% The text. (`r' is open on the right, `e' somewhat less so on the left.)
-\setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
-
-\global\setbox\errorbox=\hbox to \dimen0{\hfil
- \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
- \advance\hsize by -2\dimen2 % Rules.
- \vbox{
- \hrule height\dimen2
- \hbox{\vrule width\dimen2 \kern3pt % Space to left of text.
- \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
- \kern3pt\vrule width\dimen2}% Space to right.
- \hrule height\dimen2}
- \hfil}
-
-% The @error{} command.
-\def\error{\leavevmode\lower.7ex\copy\errorbox}
-
-% @tex ... @end tex escapes into raw Tex temporarily.
-% One exception: @ is still an escape character, so that @end tex works.
-% But \@ or @@ will get a plain tex @ character.
-
-\def\tex{\begingroup
- \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
- \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
- \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie
- \catcode `\%=14
- \catcode 43=12 % plus
- \catcode`\"=12
- \catcode`\==12
- \catcode`\|=12
- \catcode`\<=12
- \catcode`\>=12
- \escapechar=`\\
- %
- \let\b=\ptexb
- \let\bullet=\ptexbullet
- \let\c=\ptexc
- \let\,=\ptexcomma
- \let\.=\ptexdot
- \let\dots=\ptexdots
- \let\equiv=\ptexequiv
- \let\!=\ptexexclam
- \let\i=\ptexi
- \let\{=\ptexlbrace
- \let\+=\tabalign
- \let\}=\ptexrbrace
- \let\*=\ptexstar
- \let\t=\ptext
- %
- \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
- \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}%
- \def\@{@}%
-\let\Etex=\endgroup}
-
-% Define @lisp ... @endlisp.
-% @lisp does a \begingroup so it can rebind things,
-% including the definition of @endlisp (which normally is erroneous).
-
-% Amount to narrow the margins by for @lisp.
-\newskip\lispnarrowing \lispnarrowing=0.4in
-
-% This is the definition that ^^M gets inside @lisp, @example, and other
-% such environments. \null is better than a space, since it doesn't
-% have any width.
-\def\lisppar{\null\endgraf}
-
-% Make each space character in the input produce a normal interword
-% space in the output. Don't allow a line break at this space, as this
-% is used only in environments like @example, where each line of input
-% should produce a line of output anyway.
-%
-{\obeyspaces %
-\gdef\sepspaces{\obeyspaces\let =\tie}}
-
-% Define \obeyedspace to be our active space, whatever it is. This is
-% for use in \parsearg.
-{\sepspaces%
-\global\let\obeyedspace= }
-
-% This space is always present above and below environments.
-\newskip\envskipamount \envskipamount = 0pt
-
-% Make spacing and below environment symmetrical. We use \parskip here
-% to help in doing that, since in @example-like environments \parskip
-% is reset to zero; thus the \afterenvbreak inserts no space -- but the
-% start of the next paragraph will insert \parskip
-%
-\def\aboveenvbreak{{\advance\envskipamount by \parskip
-\endgraf \ifdim\lastskip<\envskipamount
-\removelastskip \penalty-50 \vskip\envskipamount \fi}}
-
-\let\afterenvbreak = \aboveenvbreak
-
-% \nonarrowing is a flag. If "set", @lisp etc don't narrow margins.
-\let\nonarrowing=\relax
-
-% @cartouche ... @end cartouche: draw rectangle w/rounded corners around
-% environment contents.
-\font\circle=lcircle10
-\newdimen\circthick
-\newdimen\cartouter\newdimen\cartinner
-\newskip\normbskip\newskip\normpskip\newskip\normlskip
-\circthick=\fontdimen8\circle
-%
-\def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth
-\def\ctr{{\hskip 6pt\circle\char'010}}
-\def\cbl{{\circle\char'012\hskip -6pt}}
-\def\cbr{{\hskip 6pt\circle\char'011}}
-\def\carttop{\hbox to \cartouter{\hskip\lskip
- \ctl\leaders\hrule height\circthick\hfil\ctr
- \hskip\rskip}}
-\def\cartbot{\hbox to \cartouter{\hskip\lskip
- \cbl\leaders\hrule height\circthick\hfil\cbr
- \hskip\rskip}}
-%
-\newskip\lskip\newskip\rskip
-
-\long\def\cartouche{%
-\begingroup
- \lskip=\leftskip \rskip=\rightskip
- \leftskip=0pt\rightskip=0pt %we want these *outside*.
- \cartinner=\hsize \advance\cartinner by-\lskip
- \advance\cartinner by-\rskip
- \cartouter=\hsize
- \advance\cartouter by 18.4pt % allow for 3pt kerns on either
-% side, and for 6pt waste from
-% each corner char, and rule thickness
- \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
- % Flag to tell @lisp, etc., not to narrow margin.
- \let\nonarrowing=\comment
- \vbox\bgroup
- \baselineskip=0pt\parskip=0pt\lineskip=0pt
- \carttop
- \hbox\bgroup
- \hskip\lskip
- \vrule\kern3pt
- \vbox\bgroup
- \hsize=\cartinner
- \kern3pt
- \begingroup
- \baselineskip=\normbskip
- \lineskip=\normlskip
- \parskip=\normpskip
- \vskip -\parskip
-\def\Ecartouche{%
- \endgroup
- \kern3pt
- \egroup
- \kern3pt\vrule
- \hskip\rskip
- \egroup
- \cartbot
- \egroup
-\endgroup
-}}
-
-
-% This macro is called at the beginning of all the @example variants,
-% inside a group.
-\def\nonfillstart{%
- \aboveenvbreak
- \inENV % This group ends at the end of the body
- \hfuzz = 12pt % Don't be fussy
- \sepspaces % Make spaces be word-separators rather than space tokens.
- \singlespace
- \let\par = \lisppar % don't ignore blank lines
- \obeylines % each line of input is a line of output
- \parskip = 0pt
- \parindent = 0pt
- \emergencystretch = 0pt % don't try to avoid overfull boxes
- % @cartouche defines \nonarrowing to inhibit narrowing
- % at next level down.
- \ifx\nonarrowing\relax
- \advance \leftskip by \lispnarrowing
- \exdentamount=\lispnarrowing
- \let\exdent=\nofillexdent
- \let\nonarrowing=\relax
- \fi
-}
-
-% Define the \E... control sequence only if we are inside the particular
-% environment, so the error checking in \end will work.
-%
-% To end an @example-like environment, we first end the paragraph (via
-% \afterenvbreak's vertical glue), and then the group. That way we keep
-% the zero \parskip that the environments set -- \parskip glue will be
-% inserted at the beginning of the next paragraph in the document, after
-% the environment.
-%
-\def\nonfillfinish{\afterenvbreak\endgroup}
-
-% @lisp: indented, narrowed, typewriter font.
-\def\lisp{\begingroup
- \nonfillstart
- \let\Elisp = \nonfillfinish
- \tt
- \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special.
- \gobble % eat return
-}
-
-% @example: Same as @lisp.
-\def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp}
-
-% @small... is usually equivalent to the non-small (@smallbook
-% redefines). We must call \example (or whatever) last in the
-% definition, since it reads the return following the @example (or
-% whatever) command.
-%
-% This actually allows (for example) @end display inside an
-% @smalldisplay. Too bad, but makeinfo will catch the error anyway.
-%
-\def\smalldisplay{\begingroup\def\Esmalldisplay{\nonfillfinish\endgroup}\display}
-\def\smallexample{\begingroup\def\Esmallexample{\nonfillfinish\endgroup}\lisp}
-\def\smallformat{\begingroup\def\Esmallformat{\nonfillfinish\endgroup}\format}
-\def\smalllisp{\begingroup\def\Esmalllisp{\nonfillfinish\endgroup}\lisp}
-
-% Real @smallexample and @smalllisp (when @smallbook): use smaller fonts.
-% Originally contributed by Pavel@xerox.
-\def\smalllispx{\begingroup
- \def\Esmalllisp{\nonfillfinish\endgroup}%
- \def\Esmallexample{\nonfillfinish\endgroup}%
- \indexfonts
- \lisp
-}
-
-% @display: same as @lisp except keep current font.
-%
-\def\display{\begingroup
- \nonfillstart
- \let\Edisplay = \nonfillfinish
- \gobble
-}
-
-% @smalldisplay (when @smallbook): @display plus smaller fonts.
-%
-\def\smalldisplayx{\begingroup
- \def\Esmalldisplay{\nonfillfinish\endgroup}%
- \indexfonts \rm
- \display
-}
-
-% @format: same as @display except don't narrow margins.
-%
-\def\format{\begingroup
- \let\nonarrowing = t
- \nonfillstart
- \let\Eformat = \nonfillfinish
- \gobble
-}
-
-% @smallformat (when @smallbook): @format plus smaller fonts.
-%
-\def\smallformatx{\begingroup
- \def\Esmallformat{\nonfillfinish\endgroup}%
- \indexfonts \rm
- \format
-}
-
-% @flushleft (same as @format).
-%
-\def\flushleft{\begingroup \def\Eflushleft{\nonfillfinish\endgroup}\format}
-
-% @flushright.
-%
-\def\flushright{\begingroup
- \let\nonarrowing = t
- \nonfillstart
- \let\Eflushright = \nonfillfinish
- \advance\leftskip by 0pt plus 1fill
- \gobble
-}
-
-% @quotation does normal linebreaking (hence we can't use \nonfillstart)
-% and narrows the margins.
-%
-\def\quotation{%
- \begingroup\inENV %This group ends at the end of the @quotation body
- {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
- \singlespace
- \parindent=0pt
- % We have retained a nonzero parskip for the environment, since we're
- % doing normal filling. So to avoid extra space below the environment...
- \def\Equotation{\parskip = 0pt \nonfillfinish}%
- %
- % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
- \ifx\nonarrowing\relax
- \advance\leftskip by \lispnarrowing
- \advance\rightskip by \lispnarrowing
- \exdentamount = \lispnarrowing
- \let\nonarrowing = \relax
- \fi
-}
-
-
-\message{defuns,}
-% Define formatter for defuns
-% First, allow user to change definition object font (\df) internally
-\def\setdeffont #1 {\csname DEF#1\endcsname}
-
-\newskip\defbodyindent \defbodyindent=.4in
-\newskip\defargsindent \defargsindent=50pt
-\newskip\deftypemargin \deftypemargin=12pt
-\newskip\deflastargmargin \deflastargmargin=18pt
-
-\newcount\parencount
-% define \functionparens, which makes ( and ) and & do special things.
-% \functionparens affects the group it is contained in.
-\def\activeparens{%
-\catcode`\(=\active \catcode`\)=\active \catcode`\&=\active
-\catcode`\[=\active \catcode`\]=\active}
-
-% Make control sequences which act like normal parenthesis chars.
-\let\lparen = ( \let\rparen = )
-
-{\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
-
-% Be sure that we always have a definition for `(', etc. For example,
-% if the fn name has parens in it, \boldbrax will not be in effect yet,
-% so TeX would otherwise complain about undefined control sequence.
-\global\let(=\lparen \global\let)=\rparen
-\global\let[=\lbrack \global\let]=\rbrack
-
-\gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
-\gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
-% This is used to turn on special parens
-% but make & act ordinary (given that it's active).
-\gdef\boldbraxnoamp{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb\let&=\ampnr}
-
-% Definitions of (, ) and & used in args for functions.
-% This is the definition of ( outside of all parentheses.
-\gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested
- \global\advance\parencount by 1
-}
-%
-% This is the definition of ( when already inside a level of parens.
-\gdef\opnested{\char`\(\global\advance\parencount by 1 }
-%
-\gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0.
- % also in that case restore the outer-level definition of (.
- \ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi
- \global\advance \parencount by -1 }
-% If we encounter &foo, then turn on ()-hacking afterwards
-\gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ }
-%
-\gdef\normalparens{\boldbrax\let&=\ampnr}
-} % End of definition inside \activeparens
-%% These parens (in \boldbrax) actually are a little bolder than the
-%% contained text. This is especially needed for [ and ]
-\def\opnr{{\sf\char`\(}\global\advance\parencount by 1 }
-\def\clnr{{\sf\char`\)}\global\advance\parencount by -1 }
-\def\ampnr{\&}
-\def\lbrb{{\bf\char`\[}}
-\def\rbrb{{\bf\char`\]}}
-
-% First, defname, which formats the header line itself.
-% #1 should be the function name.
-% #2 should be the type of definition, such as "Function".
-
-\def\defname #1#2{%
-% Get the values of \leftskip and \rightskip as they were
-% outside the @def...
-\dimen2=\leftskip
-\advance\dimen2 by -\defbodyindent
-\noindent
-\setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}%
-\dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line
-\dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations
-\parshape 2 0in \dimen0 \defargsindent \dimen1
-% Now output arg 2 ("Function" or some such)
-% ending at \deftypemargin from the right margin,
-% but stuck inside a box of width 0 so it does not interfere with linebreaking
-{% Adjust \hsize to exclude the ambient margins,
-% so that \rightline will obey them.
-\advance \hsize by -\dimen2
-\rlap{\rightline{{\rm #2}\hskip -1.25pc }}}%
-% Make all lines underfull and no complaints:
-\tolerance=10000 \hbadness=10000
-\advance\leftskip by -\defbodyindent
-\exdentamount=\defbodyindent
-{\df #1}\enskip % Generate function name
-}
-
-% Actually process the body of a definition
-% #1 should be the terminating control sequence, such as \Edefun.
-% #2 should be the "another name" control sequence, such as \defunx.
-% #3 should be the control sequence that actually processes the header,
-% such as \defunheader.
-
-\def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
-\medbreak %
-% Define the end token that this defining construct specifies
-% so that it will exit this group.
-\def#1{\endgraf\endgroup\medbreak}%
-\def#2{\begingroup\obeylines\activeparens\spacesplit#3}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup %
-\catcode 61=\active % 61 is `='
-\obeylines\activeparens\spacesplit#3}
-
-% #1 is the \E... control sequence to end the definition (which we define).
-% #2 is the \...x control sequence for consecutive fns (which we define).
-% #3 is the control sequence to call to resume processing.
-% #4, delimited by the space, is the class name.
-%
-\def\defmethparsebody#1#2#3#4 {\begingroup\inENV %
-\medbreak %
-% Define the end token that this defining construct specifies
-% so that it will exit this group.
-\def#1{\endgraf\endgroup\medbreak}%
-\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
-
-% @deftypemethod has an extra argument that nothing else does. Sigh.
-% #1 is the \E... control sequence to end the definition (which we define).
-% #2 is the \...x control sequence for consecutive fns (which we define).
-% #3 is the control sequence to call to resume processing.
-% #4, delimited by the space, is the class name.
-% #5 is the method's return type.
-%
-\def\deftypemethparsebody#1#2#3#4 #5 {\begingroup\inENV %
-\medbreak %
-% Define the end token that this defining construct specifies
-% so that it will exit this group.
-\def#1{\endgraf\endgroup\medbreak}%
-\def#2##1 ##2 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}{##2}}}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup\obeylines\activeparens\spacesplit{#3{#4}{#5}}}
-
-\def\defopparsebody #1#2#3#4#5 {\begingroup\inENV %
-\medbreak %
-% Define the end token that this defining construct specifies
-% so that it will exit this group.
-\def#1{\endgraf\endgroup\medbreak}%
-\def#2##1 ##2 {\def#4{##1}%
-\begingroup\obeylines\activeparens\spacesplit{#3{##2}}}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup\obeylines\activeparens\spacesplit{#3{#5}}}
-
-% These parsing functions are similar to the preceding ones
-% except that they do not make parens into active characters.
-% These are used for "variables" since they have no arguments.
-
-\def\defvarparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
-\medbreak %
-% Define the end token that this defining construct specifies
-% so that it will exit this group.
-\def#1{\endgraf\endgroup\medbreak}%
-\def#2{\begingroup\obeylines\spacesplit#3}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup %
-\catcode 61=\active %
-\obeylines\spacesplit#3}
-
-% This is used for \def{tp,vr}parsebody. It could probably be used for
-% some of the others, too, with some judicious conditionals.
-%
-\def\parsebodycommon#1#2#3{%
- \begingroup\inENV %
- \medbreak %
- % Define the end token that this defining construct specifies
- % so that it will exit this group.
- \def#1{\endgraf\endgroup\medbreak}%
- \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}%
- \parindent=0in
- \advance\leftskip by \defbodyindent
- \exdentamount=\defbodyindent
- \begingroup\obeylines
-}
-
-\def\defvrparsebody#1#2#3#4 {%
- \parsebodycommon{#1}{#2}{#3}%
- \spacesplit{#3{#4}}%
-}
-
-% This loses on `@deftp {Data Type} {struct termios}' -- it thinks the
-% type is just `struct', because we lose the braces in `{struct
-% termios}' when \spacesplit reads its undelimited argument. Sigh.
-% \let\deftpparsebody=\defvrparsebody
-%
-% So, to get around this, we put \empty in with the type name. That
-% way, TeX won't find exactly `{...}' as an undelimited argument, and
-% won't strip off the braces.
-%
-\def\deftpparsebody #1#2#3#4 {%
- \parsebodycommon{#1}{#2}{#3}%
- \spacesplit{\parsetpheaderline{#3{#4}}}\empty
-}
-
-% Fine, but then we have to eventually remove the \empty *and* the
-% braces (if any). That's what this does.
-%
-\def\removeemptybraces\empty#1\relax{#1}
-
-% After \spacesplit has done its work, this is called -- #1 is the final
-% thing to call, #2 the type name (which starts with \empty), and #3
-% (which might be empty) the arguments.
-%
-\def\parsetpheaderline#1#2#3{%
- #1{\removeemptybraces#2\relax}{#3}%
-}%
-
-\def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV %
-\medbreak %
-% Define the end token that this defining construct specifies
-% so that it will exit this group.
-\def#1{\endgraf\endgroup\medbreak}%
-\def#2##1 ##2 {\def#4{##1}%
-\begingroup\obeylines\spacesplit{#3{##2}}}%
-\parindent=0in
-\advance\leftskip by \defbodyindent
-\exdentamount=\defbodyindent
-\begingroup\obeylines\spacesplit{#3{#5}}}
-
-% Split up #2 at the first space token.
-% call #1 with two arguments:
-% the first is all of #2 before the space token,
-% the second is all of #2 after that space token.
-% If #2 contains no space token, all of it is passed as the first arg
-% and the second is passed as empty.
-
-{\obeylines
-\gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}%
-\long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{%
-\ifx\relax #3%
-#1{#2}{}\else #1{#2}{#3#4}\fi}}
-
-% So much for the things common to all kinds of definitions.
-
-% Define @defun.
-
-% First, define the processing that is wanted for arguments of \defun
-% Use this to expand the args and terminate the paragraph they make up
-
-\def\defunargs #1{\functionparens \sl
-% Expand, preventing hyphenation at `-' chars.
-% Note that groups don't affect changes in \hyphenchar.
-\hyphenchar\tensl=0
-#1%
-\hyphenchar\tensl=45
-\ifnum\parencount=0 \else \errmessage{Unbalanced parentheses in @def}\fi%
-\interlinepenalty=10000
-\advance\rightskip by 0pt plus 1fil
-\endgraf\nobreak\vskip -\parskip\nobreak
-}
-
-\def\deftypefunargs #1{%
-% Expand, preventing hyphenation at `-' chars.
-% Note that groups don't affect changes in \hyphenchar.
-% Use \boldbraxnoamp, not \functionparens, so that & is not special.
-\boldbraxnoamp
-\tclose{#1}% avoid \code because of side effects on active chars
-\interlinepenalty=10000
-\advance\rightskip by 0pt plus 1fil
-\endgraf\nobreak\vskip -\parskip\nobreak
-}
-
-% Do complete processing of one @defun or @defunx line already parsed.
-
-% @deffn Command forward-char nchars
-
-\def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader}
-
-\def\deffnheader #1#2#3{\doind {fn}{\code{#2}}%
-\begingroup\defname {#2}{#1}\defunargs{#3}\endgroup %
-\catcode 61=\other % Turn off change made in \defparsebody
-}
-
-% @defun == @deffn Function
-
-\def\defun{\defparsebody\Edefun\defunx\defunheader}
-
-\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
-\begingroup\defname {#1}{Function}%
-\defunargs {#2}\endgroup %
-\catcode 61=\other % Turn off change made in \defparsebody
-}
-
-% @deftypefun int foobar (int @var{foo}, float @var{bar})
-
-\def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader}
-
-% #1 is the data type. #2 is the name and args.
-\def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax}
-% #1 is the data type, #2 the name, #3 the args.
-\def\deftypefunheaderx #1#2 #3\relax{%
-\doind {fn}{\code{#2}}% Make entry in function index
-\begingroup\defname {\defheaderxcond#1\relax$$$#2}{Function}%
-\deftypefunargs {#3}\endgroup %
-\catcode 61=\other % Turn off change made in \defparsebody
-}
-
-% @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar})
-
-\def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}
-
-% \defheaderxcond#1\relax$$$
-% puts #1 in @code, followed by a space, but does nothing if #1 is null.
-\def\defheaderxcond#1#2$$${\ifx#1\relax\else\code{#1#2} \fi}
-
-% #1 is the classification. #2 is the data type. #3 is the name and args.
-\def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}
-% #1 is the classification, #2 the data type, #3 the name, #4 the args.
-\def\deftypefnheaderx #1#2#3 #4\relax{%
-\doind {fn}{\code{#3}}% Make entry in function index
-\begingroup
-\normalparens % notably, turn off `&' magic, which prevents
-% at least some C++ text from working
-\defname {\defheaderxcond#2\relax$$$#3}{#1}%
-\deftypefunargs {#4}\endgroup %
-\catcode 61=\other % Turn off change made in \defparsebody
-}
-
-% @defmac == @deffn Macro
-
-\def\defmac{\defparsebody\Edefmac\defmacx\defmacheader}
-
-\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
-\begingroup\defname {#1}{Macro}%
-\defunargs {#2}\endgroup %
-\catcode 61=\other % Turn off change made in \defparsebody
-}
-
-% @defspec == @deffn Special Form
-
-\def\defspec{\defparsebody\Edefspec\defspecx\defspecheader}
-
-\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
-\begingroup\defname {#1}{Special Form}%
-\defunargs {#2}\endgroup %
-\catcode 61=\other % Turn off change made in \defparsebody
-}
-
-% This definition is run if you use @defunx
-% anywhere other than immediately after a @defun or @defunx.
-
-\def\deffnx #1 {\errmessage{@deffnx in invalid context}}
-\def\defunx #1 {\errmessage{@defunx in invalid context}}
-\def\defmacx #1 {\errmessage{@defmacx in invalid context}}
-\def\defspecx #1 {\errmessage{@defspecx in invalid context}}
-\def\deftypefnx #1 {\errmessage{@deftypefnx in invalid context}}
-\def\deftypemethodx #1 {\errmessage{@deftypemethodx in invalid context}}
-\def\deftypefunx #1 {\errmessage{@deftypefunx in invalid context}}
-
-% @defmethod, and so on
-
-% @defop CATEGORY CLASS OPERATION ARG...
-
-\def\defop #1 {\def\defoptype{#1}%
-\defopparsebody\Edefop\defopx\defopheader\defoptype}
-
-\def\defopheader #1#2#3{%
-\dosubind {fn}{\code{#2}}{\putwordon\ #1}% Make entry in function index
-\begingroup\defname {#2}{\defoptype{} on #1}%
-\defunargs {#3}\endgroup %
-}
-
-% @deftypemethod CLASS RETURN-TYPE METHOD ARG...
-%
-\def\deftypemethod{%
- \deftypemethparsebody\Edeftypemethod\deftypemethodx\deftypemethodheader}
-%
-% #1 is the class name, #2 the data type, #3 the method name, #4 the args.
-\def\deftypemethodheader#1#2#3#4{%
- \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index
- \begingroup
- \defname{\defheaderxcond#2\relax$$$#3}{\putwordMethodon\ \code{#1}}%
- \deftypefunargs{#4}%
- \endgroup
-}
-
-% @defmethod == @defop Method
-%
-\def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader}
-%
-% #1 is the class name, #2 the method name, #3 the args.
-\def\defmethodheader#1#2#3{%
- \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% entry in function index
- \begingroup
- \defname{#2}{\putwordMethodon\ \code{#1}}%
- \defunargs{#3}%
- \endgroup
-}
-
-% @defcv {Class Option} foo-class foo-flag
-
-\def\defcv #1 {\def\defcvtype{#1}%
-\defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype}
-
-\def\defcvarheader #1#2#3{%
-\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
-\begingroup\defname {#2}{\defcvtype{} of #1}%
-\defvarargs {#3}\endgroup %
-}
-
-% @defivar == @defcv {Instance Variable}
-
-\def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader}
-
-\def\defivarheader #1#2#3{%
-\dosubind {vr}{\code{#2}}{of #1}% Make entry in var index
-\begingroup\defname {#2}{Instance Variable of #1}%
-\defvarargs {#3}\endgroup %
-}
-
-% These definitions are run if you use @defmethodx, etc.,
-% anywhere other than immediately after a @defmethod, etc.
-
-\def\defopx #1 {\errmessage{@defopx in invalid context}}
-\def\defmethodx #1 {\errmessage{@defmethodx in invalid context}}
-\def\defcvx #1 {\errmessage{@defcvx in invalid context}}
-\def\defivarx #1 {\errmessage{@defivarx in invalid context}}
-
-% Now @defvar
-
-% First, define the processing that is wanted for arguments of @defvar.
-% This is actually simple: just print them in roman.
-% This must expand the args and terminate the paragraph they make up
-\def\defvarargs #1{\normalparens #1%
-\interlinepenalty=10000
-\endgraf\nobreak\vskip -\parskip\nobreak}
-
-% @defvr Counter foo-count
-
-\def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader}
-
-\def\defvrheader #1#2#3{\doind {vr}{\code{#2}}%
-\begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup}
-
-% @defvar == @defvr Variable
-
-\def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader}
-
-\def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
-\begingroup\defname {#1}{Variable}%
-\defvarargs {#2}\endgroup %
-}
-
-% @defopt == @defvr {User Option}
-
-\def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader}
-
-\def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
-\begingroup\defname {#1}{User Option}%
-\defvarargs {#2}\endgroup %
-}
-
-% @deftypevar int foobar
-
-\def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader}
-
-% #1 is the data type. #2 is the name, perhaps followed by text that
-% is actually part of the data type, which should not be put into the index.
-\def\deftypevarheader #1#2{%
-\dovarind#2 \relax% Make entry in variables index
-\begingroup\defname {\defheaderxcond#1\relax$$$#2}{Variable}%
-\interlinepenalty=10000
-\endgraf\nobreak\vskip -\parskip\nobreak
-\endgroup}
-\def\dovarind#1 #2\relax{\doind{vr}{\code{#1}}}
-
-% @deftypevr {Global Flag} int enable
-
-\def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}
-
-\def\deftypevrheader #1#2#3{\dovarind#3 \relax%
-\begingroup\defname {\defheaderxcond#2\relax$$$#3}{#1}
-\interlinepenalty=10000
-\endgraf\nobreak\vskip -\parskip\nobreak
-\endgroup}
-
-% This definition is run if you use @defvarx
-% anywhere other than immediately after a @defvar or @defvarx.
-
-\def\defvrx #1 {\errmessage{@defvrx in invalid context}}
-\def\defvarx #1 {\errmessage{@defvarx in invalid context}}
-\def\defoptx #1 {\errmessage{@defoptx in invalid context}}
-\def\deftypevarx #1 {\errmessage{@deftypevarx in invalid context}}
-\def\deftypevrx #1 {\errmessage{@deftypevrx in invalid context}}
-
-% Now define @deftp
-% Args are printed in bold, a slight difference from @defvar.
-
-\def\deftpargs #1{\bf \defvarargs{#1}}
-
-% @deftp Class window height width ...
-
-\def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader}
-
-\def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%
-\begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}
-
-% This definition is run if you use @deftpx, etc
-% anywhere other than immediately after a @deftp, etc.
-
-\def\deftpx #1 {\errmessage{@deftpx in invalid context}}
-
-
-\message{macros,}
-% @macro.
-
-% To do this right we need a feature of e-TeX, \scantokens,
-% which we arrange to emulate with a temporary file in ordinary TeX.
-\ifx\eTeXversion\undefined
- \newwrite\macscribble
- \def\scanmacro#1{%
- \begingroup \newlinechar`\^^M
- \immediate\openout\macscribble=\jobname.tmp
- \immediate\write\macscribble{#1}%
- \immediate\closeout\macscribble
- \let\xeatspaces\eatspaces
- \input \jobname.tmp
- \endgroup
-}
-\else
-\def\scanmacro#1{%
-\begingroup \newlinechar`\^^M
-\let\xeatspaces\eatspaces\scantokens{#1}\endgroup}
-\fi
-
-\newcount\paramno % Count of parameters
-\newtoks\macname % Macro name
-\newif\ifrecursive % Is it recursive?
-
-% Utility routines.
-% Thisdoes \let #1 = #2, except with \csnames.
-\def\cslet#1#2{%
-\expandafter\expandafter
-\expandafter\let
-\expandafter\expandafter
-\csname#1\endcsname
-\csname#2\endcsname}
-
-% Trim leading and trailing spaces off a string.
-% Concepts from aro-bend problem 15 (see CTAN).
-{\catcode`\@=11
-\gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }}
-\gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@}
-\gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @}
-\def\unbrace#1{#1}
-\unbrace{\gdef\trim@@@ #1 } #2@{#1}
-}
-
-% Trim a single trailing ^^M off a string.
-{\catcode`\^^M=12\catcode`\Q=3%
-\gdef\eatcr #1{\eatcra #1Q^^MQ}%
-\gdef\eatcra#1^^MQ{\eatcrb#1Q}%
-\gdef\eatcrb#1Q#2Q{#1}%
-}
-
-% Macro bodies are absorbed as an argument in a context where
-% all characters are catcode 10, 11 or 12, except \ which is active
-% (as in normal texinfo). It is necessary to change the definition of \.
-
-% It's necessary to have hard CRs when the macro is executed. This is
-% done by making ^^M (\endlinechar) catcode 12 when reading the macro
-% body, and then making it the \newlinechar in \scanmacro.
-
-\def\macrobodyctxt{%
- \catcode`\~=12
- \catcode`\^=12
- \catcode`\_=12
- \catcode`\|=12
- \catcode`\<=12
- \catcode`\>=12
- \catcode`\+=12
- \catcode`\{=12
- \catcode`\}=12
- \catcode`\@=12
- \catcode`\^^M=12
- \usembodybackslash}
-
-\def\macroargctxt{%
- \catcode`\~=12
- \catcode`\^=12
- \catcode`\_=12
- \catcode`\|=12
- \catcode`\<=12
- \catcode`\>=12
- \catcode`\+=12
- \catcode`\@=12
- \catcode`\\=12}
-
-% \mbodybackslash is the definition of \ in @macro bodies.
-% It maps \foo\ => \csname macarg.foo\endcsname => #N
-% where N is the macro parameter number.
-% We define \csname macarg.\endcsname to be \realbackslash, so
-% \\ in macro replacement text gets you a backslash.
-
-{\catcode`@=0 @catcode`@\=@active
- @gdef@usembodybackslash{@let\=@mbodybackslash}
- @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname}
-}
-\expandafter\def\csname macarg.\endcsname{\realbackslash}
-
-\def\macro{\recursivefalse\parsearg\macroxxx}
-\def\rmacro{\recursivetrue\parsearg\macroxxx}
-
-\def\macroxxx#1{%
- \getargs{#1}% now \macname is the macname and \argl the arglist
- \ifx\argl\empty % no arguments
- \paramno=0%
- \else
- \expandafter\parsemargdef \argl;%
- \fi
- \expandafter\ifx \csname macsave.\the\macname\endcsname \relax
- \cslet{macsave.\the\macname}{\the\macname}%
- \else
- \message{Warning: redefining \the\macname}%
- \fi
- \begingroup \macrobodyctxt
- \ifrecursive \expandafter\parsermacbody
- \else \expandafter\parsemacbody
- \fi}
-
-\def\unmacro{\parsearg\unmacroxxx}
-\def\unmacroxxx#1{%
- \expandafter\ifx \csname macsave.\the\macname\endcsname \relax
- \errmessage{Macro \the\macname\ not defined.}%
- \else
- \cslet{#1}{macsave.#1}%
- \expandafter\let \csname macsave.\the\macname\endcsname \undefined
- \fi
-}
-
-% This makes use of the obscure feature that if the last token of a
-% is #, then the preceding argument is delimited by
-% an opening brace, and that opening brace is not consumed.
-\def\getargs#1{\getargsxxx#1{}}
-\def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
-\def\getmacname #1 #2\relax{\macname={#1}}
-\def\getmacargs#1{\def\argl{#1}}
-
-% Parse the optional {params} list. Set up \paramno and \paramlist
-% so \defmacro knows what to do. Define \macarg.blah for each blah
-% in the params list, to be ##N where N is the position in that list.
-% That gets used by \mbodybackslash (above).
-
-% We need to get `macro parameter char #' into several definitions.
-% The technique used is stolen from LaTeX: let \hash be something
-% unexpandable, insert that wherever you need a #, and then redefine
-% it to # just before using the token list produced.
-%
-% The same technique is used to protect \eatspaces till just before
-% the macro is used.
-
-\def\parsemargdef#1;{\paramno=0\def\paramlist{}%
- \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,}
-\def\parsemargdefxxx#1,{%
- \if#1;\let\next=\relax
- \else \let\next=\parsemargdefxxx
- \advance\paramno by 1%
- \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
- {\xeatspaces{\hash\the\paramno}}%
- \edef\paramlist{\paramlist\hash\the\paramno,}%
- \fi\next}
-
-% These two commands read recursive and nonrecursive macro bodies.
-% (They're different since rec and nonrec macros end differently.)
-
-\long\def\parsemacbody#1@end macro%
-{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
-\long\def\parsermacbody#1@end rmacro%
-{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
-
-% This defines the macro itself. There are six cases: recursive and
-% nonrecursive macros of zero, one, and many arguments.
-% Much magic with \expandafter here.
-% \xdef is used so that macro definitions will survive the file
-% they're defined in; @include reads the file inside a group.
-\def\defmacro{%
- \let\hash=##% convert placeholders to macro parameter chars
- \ifrecursive
- \ifcase\paramno
- % 0
- \expandafter\xdef\csname\the\macname\endcsname{%
- \noexpand\scanmacro{\temp}}%
- \or % 1
- \expandafter\xdef\csname\the\macname\endcsname{%
- \bgroup\noexpand\macroargctxt
- \noexpand\braceorline\csname\the\macname xxx\endcsname}%
- \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
- \egroup\noexpand\scanmacro{\temp}}%
- \else % many
- \expandafter\xdef\csname\the\macname\endcsname{%
- \bgroup\noexpand\macroargctxt
- \noexpand\csname\the\macname xx\endcsname}
- \expandafter\xdef\csname\the\macname xx\endcsname##1{%
- \csname\the\macname xxx\endcsname ##1,}%
- \expandafter\expandafter
- \expandafter\xdef
- \expandafter\expandafter
- \csname\the\macname xxx\endcsname
- \paramlist{\egroup\noexpand\scanmacro{\temp}}%
- \fi
- \else
- \ifcase\paramno
- % 0
- \expandafter\xdef\csname\the\macname\endcsname{%
- \noexpand\norecurse{\the\macname}%
- \noexpand\scanmacro{\temp}\egroup}%
- \or % 1
- \expandafter\xdef\csname\the\macname\endcsname{%
- \bgroup\noexpand\macroargctxt
- \noexpand\braceorline\csname\the\macname xxx\endcsname}%
- \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
- \egroup
- \noexpand\norecurse{\the\macname}%
- \noexpand\scanmacro{\temp}\egroup}%
- \else % many
- \expandafter\xdef\csname\the\macname\endcsname{%
- \bgroup\noexpand\macroargctxt
- \noexpand\csname\the\macname xx\endcsname}
- \expandafter\xdef\csname\the\macname xx\endcsname##1{%
- \csname\the\macname xxx\endcsname ##1,}%
- \expandafter\expandafter
- \expandafter\xdef
- \expandafter\expandafter
- \csname\the\macname xxx\endcsname
- \paramlist{%
- \egroup
- \noexpand\norecurse{\the\macname}%
- \noexpand\scanmacro{\temp}\egroup}%
- \fi
- \fi}
-
-\def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
-
-% \braceorline decides whether the next nonwhitespace character is a
-% {. If so it reads up to the closing }, if not, it reads the whole
-% line. Whatever was read is then fed to the next control sequence
-% as an argument (by \parsebrace or \parsearg)
-\def\braceorline#1{\let\next=#1\futurelet\nchar\braceorlinexxx}
-\def\braceorlinexxx{%
- \ifx\nchar\bgroup\else
- \expandafter\parsearg
- \fi \next}
-
-
-\message{cross references,}
-\newwrite\auxfile
-
-\newif\ifhavexrefs % True if xref values are known.
-\newif\ifwarnedxrefs % True if we warned once that they aren't known.
-
-% @inforef is relatively simple.
-\def\inforef #1{\inforefzzz #1,,,,**}
-\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
- node \samp{\ignorespaces#1{}}}
-
-% @node's job is to define \lastnode.
-\def\node{\ENVcheck\parsearg\nodezzz}
-\def\nodezzz#1{\nodexxx [#1,]}
-\def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
-\let\nwnode=\node
-\let\lastnode=\relax
-
-% The sectioning commands (@chapter, etc.) call these.
-\def\donoderef{%
- \ifx\lastnode\relax\else
- \expandafter\expandafter\expandafter\setref{\lastnode}%
- {Ysectionnumberandtype}%
- \global\let\lastnode=\relax
- \fi
-}
-\def\unnumbnoderef{%
- \ifx\lastnode\relax\else
- \expandafter\expandafter\expandafter\setref{\lastnode}{Ynothing}%
- \global\let\lastnode=\relax
- \fi
-}
-\def\appendixnoderef{%
- \ifx\lastnode\relax\else
- \expandafter\expandafter\expandafter\setref{\lastnode}%
- {Yappendixletterandtype}%
- \global\let\lastnode=\relax
- \fi
-}
-
-
-% @anchor{NAME} -- define xref target at arbitrary point.
-%
-\def\anchor#1{\setref{#1}{Ynothing}}
-
-
-% \setref{NAME}{SNT} defines a cross-reference point NAME, namely
-% NAME-title, NAME-pg, and NAME-SNT. Called from \foonoderef. We have
-% to set \indexdummies so commands such as @code in a section title
-% aren't expanded. It would be nicer not to expand the titles in the
-% first place, but there's so many layers that that is hard to do.
-%
-\def\setref#1#2{{%
- \indexdummies
- \dosetq{#1-title}{Ytitle}%
- \dosetq{#1-pg}{Ypagenumber}%
- \dosetq{#1-snt}{#2}
-}}
-
-% @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is
-% the node name, #2 the name of the Info cross-reference, #3 the printed
-% node name, #4 the name of the Info file, #5 the name of the printed
-% manual. All but the node name can be omitted.
-%
-\def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
-\def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
-\def\ref#1{\xrefX[#1,,,,,,,]}
-\def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
- \def\printedmanual{\ignorespaces #5}%
- \def\printednodename{\ignorespaces #3}%
- \setbox1=\hbox{\printedmanual}%
- \setbox0=\hbox{\printednodename}%
- \ifdim \wd0 = 0pt
- % No printed node name was explicitly given.
- \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax
- % Use the node name inside the square brackets.
- \def\printednodename{\ignorespaces #1}%
- \else
- % Use the actual chapter/section title appear inside
- % the square brackets. Use the real section title if we have it.
- \ifdim \wd1 > 0pt
- % It is in another manual, so we don't have it.
- \def\printednodename{\ignorespaces #1}%
- \else
- \ifhavexrefs
- % We know the real title if we have the xref values.
- \def\printednodename{\refx{#1-title}{}}%
- \else
- % Otherwise just copy the Info node name.
- \def\printednodename{\ignorespaces #1}%
- \fi%
- \fi
- \fi
- \fi
- %
- % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
- % insert empty discretionaries after hyphens, which means that it will
- % not find a line break at a hyphen in a node names. Since some manuals
- % are best written with fairly long node names, containing hyphens, this
- % is a loss. Therefore, we give the text of the node name again, so it
- % is as if TeX is seeing it for the first time.
- \ifdim \wd1 > 0pt
- \putwordsection{} ``\printednodename'' in \cite{\printedmanual}%
- \else
- % _ (for example) has to be the character _ for the purposes of the
- % control sequence corresponding to the node, but it has to expand
- % into the usual \leavevmode...\vrule stuff for purposes of
- % printing. So we \turnoffactive for the \refx-snt, back on for the
- % printing, back off for the \refx-pg.
- {\normalturnoffactive
- % Only output a following space if the -snt ref is nonempty; for
- % @unnumbered and @anchor, it won't be.
- \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
- \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
- }%
- % [mynode],
- [\printednodename],\space
- % page 3
- \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
- \fi
-\endgroup}
-
-% \dosetq is the interface for calls from other macros
-
-% Use \normalturnoffactive so that punctuation chars such as underscore
-% and backslash work in node names. (\turnoffactive doesn't do \.)
-\def\dosetq#1#2{%
- {\let\folio=0
- \normalturnoffactive
- \edef\next{\write\auxfile{\internalsetq{#1}{#2}}}%
- \iflinks
- \next
- \fi
- }%
-}
-
-% \internalsetq {foo}{page} expands into
-% CHARACTERS 'xrdef {foo}{...expansion of \Ypage...}
-% When the aux file is read, ' is the escape character
-
-\def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}}
-
-% Things to be expanded by \internalsetq
-
-\def\Ypagenumber{\folio}
-
-\def\Ytitle{\thissection}
-
-\def\Ynothing{}
-
-\def\Ysectionnumberandtype{%
-\ifnum\secno=0 \putwordChapter\xreftie\the\chapno %
-\else \ifnum \subsecno=0 \putwordSection\xreftie\the\chapno.\the\secno %
-\else \ifnum \subsubsecno=0 %
-\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno %
-\else %
-\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno %
-\fi \fi \fi }
-
-\def\Yappendixletterandtype{%
-\ifnum\secno=0 \putwordAppendix\xreftie'char\the\appendixno{}%
-\else \ifnum \subsecno=0 \putwordSection\xreftie'char\the\appendixno.\the\secno %
-\else \ifnum \subsubsecno=0 %
-\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno %
-\else %
-\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno %
-\fi \fi \fi }
-
-\gdef\xreftie{'tie}
-
-% Use TeX 3.0's \inputlineno to get the line number, for better error
-% messages, but if we're using an old version of TeX, don't do anything.
-%
-\ifx\inputlineno\thisisundefined
- \let\linenumber = \empty % Non-3.0.
-\else
- \def\linenumber{\the\inputlineno:\space}
-\fi
-
-% Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
-% If its value is nonempty, SUFFIX is output afterward.
-
-\def\refx#1#2{%
- \expandafter\ifx\csname X#1\endcsname\relax
- % If not defined, say something at least.
- \angleleft un\-de\-fined\angleright
- \iflinks
- \ifhavexrefs
- \message{\linenumber Undefined cross reference `#1'.}%
- \else
- \ifwarnedxrefs\else
- \global\warnedxrefstrue
- \message{Cross reference values unknown; you must run TeX again.}%
- \fi
- \fi
- \fi
- \else
- % It's defined, so just use it.
- \csname X#1\endcsname
- \fi
- #2% Output the suffix in any case.
-}
-
-% This is the macro invoked by entries in the aux file.
-%
-\def\xrdef#1{\begingroup
- % Reenable \ as an escape while reading the second argument.
- \catcode`\\ = 0
- \afterassignment\endgroup
- \expandafter\gdef\csname X#1\endcsname
-}
-
-% Read the last existing aux file, if any. No error if none exists.
-\def\readauxfile{\begingroup
- \catcode`\^^@=\other
- \catcode`\^^A=\other
- \catcode`\^^B=\other
- \catcode`\^^C=\other
- \catcode`\^^D=\other
- \catcode`\^^E=\other
- \catcode`\^^F=\other
- \catcode`\^^G=\other
- \catcode`\^^H=\other
- \catcode`\^^K=\other
- \catcode`\^^L=\other
- \catcode`\^^N=\other
- \catcode`\^^P=\other
- \catcode`\^^Q=\other
- \catcode`\^^R=\other
- \catcode`\^^S=\other
- \catcode`\^^T=\other
- \catcode`\^^U=\other
- \catcode`\^^V=\other
- \catcode`\^^W=\other
- \catcode`\^^X=\other
- \catcode`\^^Z=\other
- \catcode`\^^[=\other
- \catcode`\^^\=\other
- \catcode`\^^]=\other
- \catcode`\^^^=\other
- \catcode`\^^_=\other
- \catcode`\@=\other
- \catcode`\^=\other
- % It was suggested to define this as 7, which would allow ^^e4 etc.
- % in xref tags, i.e., node names. But since ^^e4 notation isn't
- % supported in the main text, it doesn't seem desirable. Furthermore,
- % that is not enough: for node names that actually contain a ^
- % character, we would end up writing a line like this: 'xrdef {'hat
- % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first
- % argument, and \hat is not an expandable control sequence. It could
- % all be worked out, but why? Either we support ^^ or we don't.
- %
- % The other change necessary for this was to define \auxhat:
- % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter
- % and then to call \auxhat in \setq.
- %
- \catcode`\~=\other
- \catcode`\[=\other
- \catcode`\]=\other
- \catcode`\"=\other
- \catcode`\_=\other
- \catcode`\|=\other
- \catcode`\<=\other
- \catcode`\>=\other
- \catcode`\$=\other
- \catcode`\#=\other
- \catcode`\&=\other
- \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
- % Make the characters 128-255 be printing characters
- {%
- \count 1=128
- \def\loop{%
- \catcode\count 1=\other
- \advance\count 1 by 1
- \ifnum \count 1<256 \loop \fi
- }%
- }%
- % The aux file uses ' as the escape (for now).
- % Turn off \ as an escape so we do not lose on
- % entries which were dumped with control sequences in their names.
- % For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^
- % Reference to such entries still does not work the way one would wish,
- % but at least they do not bomb out when the aux file is read in.
- \catcode`\{=1
- \catcode`\}=2
- \catcode`\%=\other
- \catcode`\'=0
- \catcode`\\=\other
- %
- \openin 1 \jobname.aux
- \ifeof 1 \else
- \closein 1
- \input \jobname.aux
- \global\havexrefstrue
- \global\warnedobstrue
- \fi
- % Open the new aux file. TeX will close it automatically at exit.
- \openout\auxfile=\jobname.aux
-\endgroup}
-
-
-% Footnotes.
-
-\newcount \footnoteno
-
-% The trailing space in the following definition for supereject is
-% vital for proper filling; pages come out unaligned when you do a
-% pagealignmacro call if that space before the closing brace is
-% removed. (Generally, numeric constants should always be followed by a
-% space to prevent strange expansion errors.)
-\def\supereject{\par\penalty -20000\footnoteno =0 }
-
-% @footnotestyle is meaningful for info output only.
-\let\footnotestyle=\comment
-
-\let\ptexfootnote=\footnote
-
-{\catcode `\@=11
-%
-% Auto-number footnotes. Otherwise like plain.
-\gdef\footnote{%
- \global\advance\footnoteno by \@ne
- \edef\thisfootno{$^{\the\footnoteno}$}%
- %
- % In case the footnote comes at the end of a sentence, preserve the
- % extra spacing after we do the footnote number.
- \let\@sf\empty
- \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi
- %
- % Remove inadvertent blank space before typesetting the footnote number.
- \unskip
- \thisfootno\@sf
- \footnotezzz
-}%
-
-% Don't bother with the trickery in plain.tex to not require the
-% footnote text as a parameter. Our footnotes don't need to be so general.
-%
-% Oh yes, they do; otherwise, @ifset and anything else that uses
-% \parseargline fail inside footnotes because the tokens are fixed when
-% the footnote is read. --karl, 16nov96.
-%
-\long\gdef\footnotezzz{\insert\footins\bgroup
- % We want to typeset this text as a normal paragraph, even if the
- % footnote reference occurs in (for example) a display environment.
- % So reset some parameters.
- \interlinepenalty\interfootnotelinepenalty
- \splittopskip\ht\strutbox % top baseline for broken footnotes
- \splitmaxdepth\dp\strutbox
- \floatingpenalty\@MM
- \leftskip\z@skip
- \rightskip\z@skip
- \spaceskip\z@skip
- \xspaceskip\z@skip
- \parindent\defaultparindent
- %
- % Hang the footnote text off the number.
- \hang
- \textindent{\thisfootno}%
- %
- % Don't crash into the line above the footnote text. Since this
- % expands into a box, it must come within the paragraph, lest it
- % provide a place where TeX can split the footnote.
- \footstrut
- \futurelet\next\fo@t
-}
-\def\fo@t{\ifcat\bgroup\noexpand\next \let\next\f@@t
- \else\let\next\f@t\fi \next}
-\def\f@@t{\bgroup\aftergroup\@foot\let\next}
-\def\f@t#1{#1\@foot}
-\def\@foot{\strut\egroup}
-
-}%end \catcode `\@=11
-
-% Set the baselineskip to #1, and the lineskip and strut size
-% correspondingly. There is no deep meaning behind these magic numbers
-% used as factors; they just match (closely enough) what Knuth defined.
-%
-\def\lineskipfactor{.08333}
-\def\strutheightpercent{.70833}
-\def\strutdepthpercent {.29167}
-%
-\def\setleading#1{%
- \normalbaselineskip = #1\relax
- \normallineskip = \lineskipfactor\normalbaselineskip
- \normalbaselines
- \setbox\strutbox =\hbox{%
- \vrule width0pt height\strutheightpercent\baselineskip
- depth \strutdepthpercent \baselineskip
- }%
-}
-
-% @| inserts a changebar to the left of the current line. It should
-% surround any changed text. This approach does *not* work if the
-% change spans more than two lines of output. To handle that, we would
-% have adopt a much more difficult approach (putting marks into the main
-% vertical list for the beginning and end of each change).
-%
-\def\|{%
- % \vadjust can only be used in horizontal mode.
- \leavevmode
- %
- % Append this vertical mode material after the current line in the output.
- \vadjust{%
- % We want to insert a rule with the height and depth of the current
- % leading; that is exactly what \strutbox is supposed to record.
- \vskip-\baselineskip
- %
- % \vadjust-items are inserted at the left edge of the type. So
- % the \llap here moves out into the left-hand margin.
- \llap{%
- %
- % For a thicker or thinner bar, change the `1pt'.
- \vrule height\baselineskip width1pt
- %
- % This is the space between the bar and the text.
- \hskip 12pt
- }%
- }%
-}
-
-% For a final copy, take out the rectangles
-% that mark overfull boxes (in case you have decided
-% that the text looks ok even though it passes the margin).
-%
-\def\finalout{\overfullrule=0pt}
-
-% @image. We use the macros from epsf.tex to support this.
-% If epsf.tex is not installed and @image is used, we complain.
-%
-% Check for and read epsf.tex up front. If we read it only at @image
-% time, we might be inside a group, and then its definitions would get
-% undone and the next image would fail.
-\openin 1 = epsf.tex
-\ifeof 1 \else
- \closein 1
- % Do not bother showing banner with post-v2.7 epsf.tex (available in
- % doc/epsf.tex until it shows up on ctan).
- \def\epsfannounce{\toks0 = }%
- \input epsf.tex
-\fi
-%
-\newif\ifwarnednoepsf
-\newhelp\noepsfhelp{epsf.tex must be installed for images to
- work. It is also included in the Texinfo distribution, or you can get
- it from ftp://ftp.tug.org/tex/epsf.tex.}
-%
-% Only complain once about lack of epsf.tex.
-\def\image#1{%
- \ifx\epsfbox\undefined
- \ifwarnednoepsf \else
- \errhelp = \noepsfhelp
- \errmessage{epsf.tex not found, images will be ignored}%
- \global\warnednoepsftrue
- \fi
- \else
- \imagexxx #1,,,\finish
- \fi
-}
-%
-% Arguments to @image:
-% #1 is (mandatory) image filename; we tack on .eps extension.
-% #2 is (optional) width, #3 is (optional) height.
-% #4 is just the usual extra ignored arg for parsing this stuff.
-\def\imagexxx#1,#2,#3,#4\finish{%
- % \epsfbox itself resets \epsf?size at each figure.
- \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
- \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
- % If the image is by itself, center it.
- \ifvmode
- \nobreak\medskip
- \nobreak
- \centerline{\epsfbox{#1.eps}}%
- \bigbreak
- \else
- \epsfbox{#1.eps}%
- \fi
-}
-
-
-\message{paper sizes,}
-% And other related parameters.
-
-\newdimen\defaultparindent \defaultparindent = 15pt
-
-\chapheadingskip = 15pt plus 4pt minus 2pt
-\secheadingskip = 12pt plus 3pt minus 2pt
-\subsecheadingskip = 9pt plus 2pt minus 2pt
-
-% Prevent underfull vbox error messages.
-\vbadness = 10000
-
-% Don't be so finicky about underfull hboxes, either.
-\hbadness = 2000
-
-% Following George Bush, just get rid of widows and orphans.
-\widowpenalty=10000
-\clubpenalty=10000
-
-% Use TeX 3.0's \emergencystretch to help line breaking, but if we're
-% using an old version of TeX, don't do anything. We want the amount of
-% stretch added to depend on the line length, hence the dependence on
-% \hsize. This makes it come to about 9pt for the 8.5x11 format. We
-% call this whenever the paper size is set.
-%
-\def\setemergencystretch{%
- \ifx\emergencystretch\thisisundefined
- % Allow us to assign to \emergencystretch anyway.
- \def\emergencystretch{\dimen0}%
- \else
- \emergencystretch = \hsize
- \divide\emergencystretch by 45
- \fi
-}
-
-% Parameters in order: 1) textheight; 2) textwidth; 3) voffset;
-% 4) hoffset; 5) binding offset; 6) topskip. Then whoever calls us can
-% set \parskip and call \setleading for \baselineskip.
-%
-\def\internalpagesizes#1#2#3#4#5#6{%
- \voffset = #3\relax
- \topskip = #6\relax
- \splittopskip = \topskip
- %
- \vsize = #1\relax
- \advance\vsize by \topskip
- \outervsize = \vsize
- \advance\outervsize by 2\topandbottommargin
- \pageheight = \vsize
- %
- \hsize = #2\relax
- \outerhsize = \hsize
- \advance\outerhsize by 0.5in
- \pagewidth = \hsize
- %
- \normaloffset = #4\relax
- \bindingoffset = #5\relax
- %
- \parindent = \defaultparindent
- \setemergencystretch
-}
-
-% @letterpaper (the default).
-\def\letterpaper{{\globaldefs = 1
- \parskip = 3pt plus 2pt minus 1pt
- \setleading{13.2pt}%
- %
- % If page is nothing but text, make it come out even.
- \internalpagesizes{46\baselineskip}{6in}{\voffset}{.25in}{\bindingoffset}{36pt}%
-}}
-
-% Use @smallbook to reset parameters for 7x9.5 (or so) format.
-\def\smallbook{{\globaldefs = 1
- \parskip = 2pt plus 1pt
- \setleading{12pt}%
- %
- \internalpagesizes{7.5in}{5.in}{\voffset}{.25in}{\bindingoffset}{16pt}%
- %
- \lispnarrowing = 0.3in
- \tolerance = 700
- \hfuzz = 1pt
- \contentsrightmargin = 0pt
- \deftypemargin = 0pt
- \defbodyindent = .5cm
- %
- \let\smalldisplay = \smalldisplayx
- \let\smallexample = \smalllispx
- \let\smallformat = \smallformatx
- \let\smalllisp = \smalllispx
-}}
-
-% Use @afourpaper to print on European A4 paper.
-\def\afourpaper{{\globaldefs = 1
- \setleading{12pt}%
- \parskip = 3pt plus 2pt minus 1pt
- %
- \internalpagesizes{53\baselineskip}{160mm}{\voffset}{4mm}{\bindingoffset}{44pt}%
- %
- \tolerance = 700
- \hfuzz = 1pt
-}}
-
-% A specific text layout, 24x15cm overall, intended for A4 paper. Top margin
-% 29mm, hence bottom margin 28mm, nominal side margin 3cm.
-\def\afourlatex{{\globaldefs = 1
- \setleading{13.6pt}%
- %
- \afourpaper
- \internalpagesizes{237mm}{150mm}{3.6mm}{3.6mm}{3mm}{7mm}%
- %
- \globaldefs = 0
-}}
-
-% Use @afourwide to print on European A4 paper in wide format.
-\def\afourwide{%
- \afourpaper
- \internalpagesizes{9.5in}{6.5in}{\hoffset}{\normaloffset}{\bindingoffset}{7mm}%
- %
- \globaldefs = 0
-}
-
-% @pagesizes TEXTHEIGHT[,TEXTWIDTH]
-% Perhaps we should allow setting the margins, \topskip, \parskip,
-% and/or leading, also. Or perhaps we should compute them somehow.
-%
-\def\pagesizes{\parsearg\pagesizesxxx}
-\def\pagesizesxxx#1{\pagesizesyyy #1,,\finish}
-\def\pagesizesyyy#1,#2,#3\finish{{%
- \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi
- \globaldefs = 1
- %
- \parskip = 3pt plus 2pt minus 1pt
- \setleading{13.2pt}%
- %
- \internalpagesizes{#1}{\hsize}{\voffset}{\normaloffset}{\bindingoffset}{44pt}%
-}}
-
-% Set default to letter.
-%
-\letterpaper
-
-\message{and turning on texinfo input format.}
-
-% Define macros to output various characters with catcode for normal text.
-\catcode`\"=\other
-\catcode`\~=\other
-\catcode`\^=\other
-\catcode`\_=\other
-\catcode`\|=\other
-\catcode`\<=\other
-\catcode`\>=\other
-\catcode`\+=\other
-\def\normaldoublequote{"}
-\def\normaltilde{~}
-\def\normalcaret{^}
-\def\normalunderscore{_}
-\def\normalverticalbar{|}
-\def\normalless{<}
-\def\normalgreater{>}
-\def\normalplus{+}
-
-% This macro is used to make a character print one way in ttfont
-% where it can probably just be output, and another way in other fonts,
-% where something hairier probably needs to be done.
-%
-% #1 is what to print if we are indeed using \tt; #2 is what to print
-% otherwise. Since all the Computer Modern typewriter fonts have zero
-% interword stretch (and shrink), and it is reasonable to expect all
-% typewriter fonts to have this, we can check that font parameter.
-%
-\def\ifusingtt#1#2{\ifdim \fontdimen3\the\font=0pt #1\else #2\fi}
-
-% Turn off all special characters except @
-% (and those which the user can use as if they were ordinary).
-% Most of these we simply print from the \tt font, but for some, we can
-% use math or other variants that look better in normal text.
-
-\catcode`\"=\active
-\def\activedoublequote{{\tt\char34}}
-\let"=\activedoublequote
-\catcode`\~=\active
-\def~{{\tt\char126}}
-\chardef\hat=`\^
-\catcode`\^=\active
-\def^{{\tt \hat}}
-
-\catcode`\_=\active
-\def_{\ifusingtt\normalunderscore\_}
-% Subroutine for the previous macro.
-\def\_{\leavevmode \kern.06em \vbox{\hrule width.3em height.1ex}}
-
-\catcode`\|=\active
-\def|{{\tt\char124}}
-\chardef \less=`\<
-\catcode`\<=\active
-\def<{{\tt \less}}
-\chardef \gtr=`\>
-\catcode`\>=\active
-\def>{{\tt \gtr}}
-\catcode`\+=\active
-\def+{{\tt \char 43}}
-%\catcode 27=\active
-%\def^^[{$\diamondsuit$}
-
-% Set up an active definition for =, but don't enable it most of the time.
-{\catcode`\==\active
-\global\def={{\tt \char 61}}}
-
-\catcode`+=\active
-\catcode`\_=\active
-
-% If a .fmt file is being used, characters that might appear in a file
-% name cannot be active until we have parsed the command line.
-% So turn them off again, and have \everyjob (or @setfilename) turn them on.
-% \otherifyactive is called near the end of this file.
-\def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
-
-\catcode`\@=0
-
-% \rawbackslashxx output one backslash character in current font
-\global\chardef\rawbackslashxx=`\\
-%{\catcode`\\=\other
-%@gdef@rawbackslashxx{\}}
-
-% \rawbackslash redefines \ as input to do \rawbackslashxx.
-{\catcode`\\=\active
-@gdef@rawbackslash{@let\=@rawbackslashxx }}
-
-% \normalbackslash outputs one backslash in fixed width font.
-\def\normalbackslash{{\tt\rawbackslashxx}}
-
-% Say @foo, not \foo, in error messages.
-\escapechar=`\@
-
-% \catcode 17=0 % Define control-q
-\catcode`\\=\active
-
-% Used sometimes to turn off (effectively) the active characters
-% even after parsing them.
-@def@turnoffactive{@let"=@normaldoublequote
-@let\=@realbackslash
-@let~=@normaltilde
-@let^=@normalcaret
-@let_=@normalunderscore
-@let|=@normalverticalbar
-@let<=@normalless
-@let>=@normalgreater
-@let+=@normalplus}
-
-@def@normalturnoffactive{@let"=@normaldoublequote
-@let\=@normalbackslash
-@let~=@normaltilde
-@let^=@normalcaret
-@let_=@normalunderscore
-@let|=@normalverticalbar
-@let<=@normalless
-@let>=@normalgreater
-@let+=@normalplus}
-
-% Make _ and + \other characters, temporarily.
-% This is canceled by @fixbackslash.
-@otherifyactive
-
-% If a .fmt file is being used, we don't want the `\input texinfo' to show up.
-% That is what \eatinput is for; after that, the `\' should revert to printing
-% a backslash.
-%
-@gdef@eatinput input texinfo{@fixbackslash}
-@global@let\ = @eatinput
-
-% On the other hand, perhaps the file did not have a `\input texinfo'. Then
-% the first `\{ in the file would cause an error. This macro tries to fix
-% that, assuming it is called before the first `\' could plausibly occur.
-% Also back turn on active characters that might appear in the input
-% file name, in case not using a pre-dumped format.
-%
-@gdef@fixbackslash{@ifx\@eatinput @let\ = @normalbackslash @fi
- @catcode`+=@active @catcode`@_=@active}
-
-% These look ok in all fonts, so just make them not special. The @rm below
-% makes sure that the current font starts out as the newly loaded cmr10
-@catcode`@$=@other @catcode`@%=@other @catcode`@&=@other @catcode`@#=@other
-
-@textfonts
-@rm
-
-@c Local variables:
-@c eval: (add-hook 'write-file-hooks 'time-stamp)
-@c page-delimiter: "^\\\\message"
-@c time-stamp-start: "def\\\\texinfoversion{"
-@c time-stamp-format: "%:y-%02m-%02d"
-@c time-stamp-end: "}"
-@c End:
diff --git a/avl-1.4.0/thread-test.c b/avl-1.4.0/thread-test.c
deleted file mode 100644
index 20eead4..0000000
--- a/avl-1.4.0/thread-test.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* libavl - manipulates AVL trees.
- Copyright (C) 1998, 1999 Free Software Foundation, Inc.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA.
-
- The author may be contacted at on the
- Internet, or as Ben Pfaff, 12167 Airport Rd, DeWitt MI 48820, USA
- through more mundane means. */
-
-/* This is file thread-test.c in libavl. */
-
-#if HAVE_CONFIG_H
-#include
-#endif
-#include
-#include
-#include
-#include
-#include "avl.h"
-#include "avlt.h"
-#include "avltr.h"
-
-#if __GNUC__ >= 2
-#define unused __attribute__ ((unused))
-#else
-#define unused
-#endif
-
-/* Compare two integers A and B and return a strcmp()-type result. */
-int
-compare_ints (const void *a, const void *b, void unused *param)
-{
- return ((int) a) - ((int) b);
-}
-
-/* Arrange the N elements of ARRAY in random order. */
-void
-shuffle (int *array, int n)
-{
- int i;
-
- for (i = 0; i < n; i++)
- {
- int j = i + rand () % (n - i);
- int t = array[j];
- array[j] = array[i];
- array[i] = t;
- }
-}
-
-
-/* Simple stress test procedure for the AVL tree threading/unthreading
- routines. */
-#define TREE_SIZE 1024
-#define N_ITERATIONS 16
-int
-main (int argc, char **argv)
-{
- int array[TREE_SIZE];
- int seed;
- int iteration;
-
- if (argc == 2)
- seed = atoi (argv[1]);
- else
- seed = time (0) * 257 % 32768;
-
- fputs ("Testing threading and unthreading...\n", stdout);
- for (iteration = 1; iteration <= N_ITERATIONS; iteration++)
- {
- avl_tree *tree;
- avl_traverser trav = AVL_TRAVERSER_INIT;
- void **nodep = NULL;
- void *node;
- int i;
-
- printf ("Iteration %4d/%4d: seed=%5d", iteration, N_ITERATIONS, seed);
- fflush (stdout);
-
- srand (seed++);
-
- for (i = 0; i < TREE_SIZE; i++)
- array[i] = i + 1;
- shuffle (array, TREE_SIZE);
-
- tree = avl_create (compare_ints, NULL);
- for (i = 0; i < TREE_SIZE; i++)
- avl_force_insert (tree, (void *) (array[i]));
-
- shuffle (array, TREE_SIZE);
- for (i = 0; i < TREE_SIZE; i++)
- {
- avlt_tree *t;
- avltr_tree *tr;
-
- avl_delete (tree, (void *) (array[i]));
-
- while ((node = avl_traverse (tree, &trav)) != NULL);
-
- t = avlt_thread (tree);
- while ((nodep = avlt_next (t, nodep)) != NULL);
- while ((nodep = avlt_prev (t, nodep)) != NULL);
- avlt_unthread (t);
-
- tr = avltr_thread (tree);
- while ((nodep = avltr_next (tr, nodep)) != NULL);
- avltr_unthread (tr);
-
- while ((node = avl_traverse (tree, &trav)) != NULL);
-
- if (i % 128 == 0)
- {
- putchar ('.');
- fflush (stdout);
- }
- }
- fputs (" good.\n", stdout);
-
- avl_destroy (tree, NULL);
- }
-
- return 0;
-}
-
-/*
- Local variables:
- compile-command: "gcc -W -Wall -I. -o ./thread-test thread-test.c avl.c avlt.c avltr.c"
- End:
-*/
diff --git a/bit b/bit
deleted file mode 100755
index 772994a..0000000
--- a/bit
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/sh
-
-#
-# $Id$
-#
-
-#
-# Build all add-on packages for the current RTEMS_MAKEFILE_PATH architecture.
-#
-set -ex
-
-# rtemsNfs is version 1.2
-PACKAGES="rtemsNfs avl-1.4.0 ncurses-5.3 readline-4.3 libtecla-1.4.1 zlib-1.1.4"
-
-for p in $PACKAGES
-do
- cd $p
- makefile="../RTEMS_Makefiles/Makefile.$p"
- if [ \! -r "$makefile" ]
- then
- makefile="`echo $makefile | sed -e '/-.*/s///'`"
- fi
- if [ -r "$makefile" ]
- then
- make -w -f "$makefile"
- else
- make -w
- make -w install
- fi
- cd ..
-done
-
-for p in $PACKAGES
-do
- (cd $p ; make clean distclean || true)
-done
diff --git a/bit_bfd b/bit_bfd
deleted file mode 100644
index a6568f6..0000000
--- a/bit_bfd
+++ /dev/null
@@ -1,18 +0,0 @@
-#!/bin/sh
-
-#
-# $Id$
-#
-
-#
-# Where to find the binutils source
-#
-BINUTILS_SRC_DIR=~/src/RTEMS/bt/binutils-2.13.1
-set -ex
-
-rm -rf build
-mkdir build
-cd build
-make -w BINUTILS_SRC_DIR="$BINUTILS_SRC_DIR" -f ../RTEMS_Makefiles/Makefile.bfd
-cd ..
-rm -rf build
diff --git a/examples/avl/BuildTests.sh b/examples/avl/BuildTests.sh
deleted file mode 100644
index b0cc752..0000000
--- a/examples/avl/BuildTests.sh
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-set -x
-
-SRCDIR=../../avl-1.4.0
-
-for TEST in avl avlt avltr rb
-do
- rm -f $TEST.c
- ln -s $SRCDIR/$TEST.c .
- make TEST=$TEST SRCDIR=$SRCDIR
- rm -f $TEST.c
-done
diff --git a/examples/avl/Makefile b/examples/avl/Makefile
deleted file mode 100644
index 0cbf425..0000000
--- a/examples/avl/Makefile
+++ /dev/null
@@ -1,70 +0,0 @@
-#
-# $Id$
-#
-# Templates/Makefile.leaf
-# Template leaf node Makefile
-#
-
-# C source names, if any, go here -- minus the .c
-C_PIECES= init $(TEST)
-C_FILES=$(C_PIECES:%=%.c)
-C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
-
-# C++ source names, if any, go here -- minus the .cc
-CC_PIECES=
-CC_FILES=$(CC_PIECES:%=%.cc)
-CC_O_FILES=$(CC_PIECES:%=${ARCH}/%.o)
-
-H_FILES=
-
-# Assembly source names, if any, go here -- minus the .s
-S_PIECES=
-S_FILES=$(S_PIECES:%=%.s)
-S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o)
-
-SRCS=$(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES)
-OBJS=$(C_O_FILES) $(CC_O_FILES) $(S_O_FILES)
-
-PGMS=${ARCH}/$(TEST)
-
-#
-# RTEMS managers go here
-#
-MANAGERS=io event message semaphore
-
-include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
-include $(RTEMS_CUSTOM)
-include $(PROJECT_ROOT)/make/leaf.cfg
-
-#
-# (OPTIONAL) Add local stuff here using +=
-#
-
-DEFINES +=
-CPPFLAGS += -I$(SRCDIR) -DSELF_TEST=1 -Dmain=ncchk
-CFLAGS +=
-
-LD_PATHS +=
-LD_LIBS +=
-CFLAGS_LD += -Wl,--defsym -Wl,HeapSize=0x200000 # network needs more space
-CFLAGS_DEBUG_V += -DSTACK_CHECKER_ON
-
-#
-# Add your list of files to delete here. The config files
-# already know how to delete some stuff, so you may want
-# to just run 'make clean' first to see what gets missed.
-# 'make clobber' already includes 'make clean'
-#
-
-CLEAN_ADDITIONS +=
-CLOBBER_ADDITIONS +=
-
-all: ${ARCH} $(SRCS) $(PGMS)
-
-${ARCH}/$(TEST): ${OBJS} ${LINK_FILES}
- $(make-exe)
-
-# Install the program(s), appending _g or _p as appropriate.
-# for include files, just use $(INSTALL)
-install: all
- $(INSTALL_VARIANT) -m 555 ${PGMS} /usr/local/tftpboot/bootfiles/m68360/
diff --git a/examples/avl/README b/examples/avl/README
deleted file mode 100644
index 72cab38..0000000
--- a/examples/avl/README
+++ /dev/null
@@ -1,4 +0,0 @@
-This directory contains a script and a makefile to build RTEMS
-executable images of the avl test programs. To build all
-the tests:
- sh BuildTests.sh
diff --git a/examples/avl/init.c b/examples/avl/init.c
deleted file mode 100644
index eb33c84..0000000
--- a/examples/avl/init.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Root task
- *
- * $Revision$ $Date$ $Author$
- */
-#include
-#include
-#include
-
-/*
- ***********************************************************************
- * RTEMS CONFIGURATION *
- ***********************************************************************
- */
-#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
-
-#define CONFIGURE_MAXIMUM_TASKS 20
-#define CONFIGURE_MAXIMUM_SEMAPHORES 10
-#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES 10
-
-#define CONFIGURE_MICROSECONDS_PER_TICK 52489
-
-#define CONFIGURE_INIT
-#define CONFIGURE_INIT_TASK_INITIAL_MODES (RTEMS_PREEMPT | \
- RTEMS_NO_TIMESLICE | \
- RTEMS_NO_ASR | \
- RTEMS_INTERRUPT_LEVEL(0))
-#define CONFIGURE_INIT_TASK_STACK_SIZE (40*1024)
-#define CONFIGURE_INIT_TASK_PRIORITY 100
-rtems_task Init (rtems_task_argument argument);
-
-#define CONFIGURE_HAS_OWN_DEVICE_DRIVER_TABLE
-rtems_driver_address_table Device_drivers[] = {
- CONSOLE_DRIVER_TABLE_ENTRY,
- CLOCK_DRIVER_TABLE_ENTRY,
-};
-
-#include
-
-extern int main (int argc, char **argv);
-
-/*
- * RTEMS Startup Task
- */
-rtems_task
-Init (rtems_task_argument ignored)
-{
- putenv ("TERM=xterm");
- main (0, NULL);
- rtems_task_suspend (RTEMS_SELF);
-}
diff --git a/examples/ncurses/BuildTests.sh b/examples/ncurses/BuildTests.sh
deleted file mode 100644
index f8c2f68..0000000
--- a/examples/ncurses/BuildTests.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/sh
-
-set -x
-
-SRCDIR=../../ncurses-5.2/test
-
-for TEST in \
- blue \
- bs \
- cardfile \
- ditto \
- filter \
- firework \
- firstlast \
- gdc \
- hanoi \
- hashtest \
- keynames \
- knight \
- lrtest \
- ncurses \
- newdemo \
- rain \
- tclock \
- testaddch \
- testcurs \
- testscanw \
- view \
- worm \
- xmas
-do
- rm -f $TEST.c
- ln -s $SRCDIR/$TEST.c .
- make TEST=$TEST SRCDIR=$SRCDIR
- rm -f $TEST.c
-done
diff --git a/examples/ncurses/Makefile b/examples/ncurses/Makefile
deleted file mode 100644
index ecdc006..0000000
--- a/examples/ncurses/Makefile
+++ /dev/null
@@ -1,70 +0,0 @@
-#
-# $Id$
-#
-# Templates/Makefile.leaf
-# Template leaf node Makefile
-#
-
-# C source names, if any, go here -- minus the .c
-C_PIECES= init $(TEST)
-C_FILES=$(C_PIECES:%=%.c)
-C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
-
-# C++ source names, if any, go here -- minus the .cc
-CC_PIECES=
-CC_FILES=$(CC_PIECES:%=%.cc)
-CC_O_FILES=$(CC_PIECES:%=${ARCH}/%.o)
-
-H_FILES=
-
-# Assembly source names, if any, go here -- minus the .s
-S_PIECES=
-S_FILES=$(S_PIECES:%=%.s)
-S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o)
-
-SRCS=$(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES)
-OBJS=$(C_O_FILES) $(CC_O_FILES) $(S_O_FILES)
-
-PGMS=${ARCH}/$(TEST)
-
-#
-# RTEMS managers go here
-#
-MANAGERS=io event message semaphore
-
-include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
-include $(RTEMS_CUSTOM)
-include $(PROJECT_ROOT)/make/leaf.cfg
-
-#
-# (OPTIONAL) Add local stuff here using +=
-#
-
-DEFINES +=
-CPPFLAGS += -I$(SRCDIR) -Dmain=ncchk -DRETSIGTYPE=void
-CFLAGS +=
-
-LD_PATHS +=
-LD_LIBS += -lm -lpanel -lform -lmenu -lncurses
-CFLAGS_LD += -Wl,--defsym -Wl,HeapSize=0x200000 # network needs more space
-CFLAGS_DEBUG_V += -DSTACK_CHECKER_ON
-
-#
-# Add your list of files to delete here. The config files
-# already know how to delete some stuff, so you may want
-# to just run 'make clean' first to see what gets missed.
-# 'make clobber' already includes 'make clean'
-#
-
-CLEAN_ADDITIONS +=
-CLOBBER_ADDITIONS +=
-
-all: ${ARCH} $(SRCS) $(PGMS)
-
-${ARCH}/$(TEST): ${OBJS} ${LINK_FILES}
- $(make-exe)
-
-# Install the program(s), appending _g or _p as appropriate.
-# for include files, just use $(INSTALL)
-install: all
- $(INSTALL_VARIANT) -m 555 ${PGMS} /usr/local/tftpboot/bootfiles/m68360/
diff --git a/examples/ncurses/README b/examples/ncurses/README
deleted file mode 100644
index beb3c32..0000000
--- a/examples/ncurses/README
+++ /dev/null
@@ -1,4 +0,0 @@
-This directory contains a script and a makefile to build RTEMS
-executable images of the ncurses test programs. To build all
-the tests:
- sh BuildTests.sh
diff --git a/examples/ncurses/init.c b/examples/ncurses/init.c
deleted file mode 100644
index 8a81a1a..0000000
--- a/examples/ncurses/init.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Root task
- *
- * $Revision$ $Date$ $Author$
- */
-#include
-#include
-#include
-
-/*
- ***********************************************************************
- * RTEMS CONFIGURATION *
- ***********************************************************************
- */
-#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
-
-#define CONFIGURE_MAXIMUM_TASKS 20
-#define CONFIGURE_MAXIMUM_SEMAPHORES 10
-#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES 10
-
-#define CONFIGURE_MICROSECONDS_PER_TICK 52489
-
-#define CONFIGURE_INIT
-#define CONFIGURE_INIT_TASK_INITIAL_MODES (RTEMS_PREEMPT | \
- RTEMS_NO_TIMESLICE | \
- RTEMS_NO_ASR | \
- RTEMS_INTERRUPT_LEVEL(0))
-#define CONFIGURE_INIT_TASK_STACK_SIZE (40*1024)
-#define CONFIGURE_INIT_TASK_PRIORITY 100
-rtems_task Init (rtems_task_argument argument);
-
-#define CONFIGURE_HAS_OWN_DEVICE_DRIVER_TABLE
-rtems_driver_address_table Device_drivers[] = {
- CONSOLE_DRIVER_TABLE_ENTRY,
- CLOCK_DRIVER_TABLE_ENTRY,
-};
-
-#include
-
-extern int main (int argc, char **argv);
-
-/*
- * RTEMS Startup Task
- */
-rtems_task
-Init (rtems_task_argument ignored)
-{
- putenv ("TERM=xterm");
- putenv ("NCURSES_TRACE=20");
- main (0, NULL);
- rtems_task_suspend (RTEMS_SELF);
-}
diff --git a/examples/readline/.gdbinit b/examples/readline/.gdbinit
deleted file mode 100644
index f198616..0000000
--- a/examples/readline/.gdbinit
+++ /dev/null
@@ -1 +0,0 @@
-directory ../../readline
diff --git a/examples/readline/Makefile b/examples/readline/Makefile
deleted file mode 100644
index 0b67968..0000000
--- a/examples/readline/Makefile
+++ /dev/null
@@ -1,70 +0,0 @@
-#
-# $Id$
-#
-# Templates/Makefile.leaf
-# Template leaf node Makefile
-#
-
-# C source names, if any, go here -- minus the .c
-C_PIECES= init rlgeneric
-C_FILES=$(C_PIECES:%=%.c)
-C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
-
-# C++ source names, if any, go here -- minus the .cc
-CC_PIECES=
-CC_FILES=$(CC_PIECES:%=%.cc)
-CC_O_FILES=$(CC_PIECES:%=${ARCH}/%.o)
-
-H_FILES=
-
-# Assembly source names, if any, go here -- minus the .s
-S_PIECES=
-S_FILES=$(S_PIECES:%=%.s)
-S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o)
-
-SRCS=$(C_FILES) $(CC_FILES) $(H_FILES) $(S_FILES)
-OBJS=$(C_O_FILES) $(CC_O_FILES) $(S_O_FILES)
-
-PGMS=${ARCH}/rlchk
-
-#
-# RTEMS managers go here
-#
-MANAGERS=io event message semaphore
-
-include $(RTEMS_MAKEFILE_PATH)/Makefile.inc
-include $(RTEMS_CUSTOM)
-include $(PROJECT_ROOT)/make/leaf.cfg
-
-#
-# (OPTIONAL) Add local stuff here using +=
-#
-
-DEFINES +=
-CPPFLAGS += -Dmain=rlchk
-CFLAGS +=
-
-LD_PATHS +=
-LD_LIBS += -lreadline -lncurses
-CFLAGS_LD += -Wl,--defsym -Wl,HeapSize=0x200000 # network needs more space
-CFLAGS_DEBUG_V += -DSTACK_CHECKER_ON
-
-#
-# Add your list of files to delete here. The config files
-# already know how to delete some stuff, so you may want
-# to just run 'make clean' first to see what gets missed.
-# 'make clobber' already includes 'make clean'
-#
-
-CLEAN_ADDITIONS +=
-CLOBBER_ADDITIONS +=
-
-all: ${ARCH} $(SRCS) $(PGMS)
-
-${ARCH}/rlchk: ${OBJS} ${LINK_FILES}
- $(make-exe)
-
-# Install the program(s), appending _g or _p as appropriate.
-# for include files, just use $(INSTALL)
-install: all
- $(INSTALL_VARIANT) -m 555 ${PGMS} /usr/local/tftpboot/bootfiles/m68360/
diff --git a/examples/readline/init.c b/examples/readline/init.c
deleted file mode 100644
index 1336cfe..0000000
--- a/examples/readline/init.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Root task
- *
- * $Revision$ $Date$ $Author$
- */
-#include
-#include
-#include
-
-/*
- ***********************************************************************
- * RTEMS CONFIGURATION *
- ***********************************************************************
- */
-#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
-
-#define CONFIGURE_MAXIMUM_TASKS 20
-#define CONFIGURE_MAXIMUM_SEMAPHORES 10
-#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES 10
-
-#define CONFIGURE_MICROSECONDS_PER_TICK 52489
-
-#define CONFIGURE_INIT
-#define CONFIGURE_INIT_TASK_INITIAL_MODES (RTEMS_PREEMPT | \
- RTEMS_NO_TIMESLICE | \
- RTEMS_NO_ASR | \
- RTEMS_INTERRUPT_LEVEL(0))
-#define CONFIGURE_INIT_TASK_STACK_SIZE (10*1024)
-#define CONFIGURE_INIT_TASK_PRIORITY 100
-rtems_task Init (rtems_task_argument argument);
-
-#define CONFIGURE_HAS_OWN_DEVICE_DRIVER_TABLE
-rtems_driver_address_table Device_drivers[] = {
- CONSOLE_DRIVER_TABLE_ENTRY,
- CLOCK_DRIVER_TABLE_ENTRY,
-};
-
-#include
-
-extern int main (int argc, char **argv);
-
-/*
- * RTEMS Startup Task
- */
-rtems_task
-Init (rtems_task_argument ignored)
-{
- putenv ("TERM=xterm");
- main (0, NULL);
- rtems_task_suspend (RTEMS_SELF);
-}
diff --git a/examples/readline/rlgeneric.c b/examples/readline/rlgeneric.c
deleted file mode 100644
index 2bb5da4..0000000
--- a/examples/readline/rlgeneric.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Host version of readline test program.
- * Works as RTEMS version when included in rlchk.c
- */
-#include
-#include
-#include
-#include
-#include
-
-int
-main (int argc, char **argv)
-{
- char *line;
-
- rl_bind_key ('\t', rl_insert);
- stifle_history (10);
- for (;;) {
- line = readline ("Enter a line: ");
- if (line && *line)
- add_history (line);
- printf ("Line: `%s'\n", line);
- if (line && !strcmp (line, "dump")) {
- rl_dump_variables (0,0);
- rl_dump_functions (0,0);
- }
- free (line);
- }
- return 0;
-}
diff --git a/libtecla-1.4.1/CHANGES b/libtecla-1.4.1/CHANGES
deleted file mode 100644
index 45073e0..0000000
--- a/libtecla-1.4.1/CHANGES
+++ /dev/null
@@ -1,1492 +0,0 @@
-In the following log, modification dates are listed using the European
-convention in which the day comes before the month (ie. DD/MM/YYYY).
-The most recent modifications are listed first.
-
-25/05/2002 mcs@astro.caltech.edu (based on suggestions by Paul Smith)
- pathutil.c
- Apparently, under QNX pathconf("/",_PC_PATH_MAX) returns
- EINVAL. At Paul's suggestion I have modified the code to
- silently substitute the existing MAX_PATHLEN_FALLBACK
- value if pathconf() returns an error of any kind.
- homedir.c
- Under QNX, sysconf(_SC_GETPW_R_SIZE_MAX) also apparently
- returns EINVAL, so as with pathconf() I modified the code
- to substitute a fallback default, rather than
- complaining and failing.
- enhance.c
- Paul told me that the inclusion of sys/termios.h was
- causing compilation of enhance.c to fail under QNX. This
- line is a bug. The correct thing to do is include
- termios.h without a sub-directory prefix, as I was
- already doing futher up in the file, so I have just
- removed the errant include line.
-
-12/02/2002 mcs@astro.caltech.edu
- getline.c configure.in configure
- Mac OS X doesn't have a term.h or termcap.h, but it does
- define prototypes for tputs() and setupterm(), so the
- default prototypes that I was including if no headers
- where available, upset it. I've removed these prototypes.
- I also now conditionally include whichever is found of
- curses.h and ncurses/curses.h for both termcap and
- terminfo (before I wasn't including curses.h when
- termcap was selected).
-
-12/02/2002 mcs@astro.caltech.edu
- Updated version number to 1.4.1, ready for a micro
- release.
-
-12/02/2002 mcs@astro.caltech.edu
- html/index.html
- Added Mac OS X and Cygwin to the list of systems that
- can compile libtecla.
-
-12/02/2002 mcs@astro.caltech.edu
- getline.c
- Under Mac OS X, the tputs() callback function returns
- void, instead of the int return value used by other
- systems. This declaration is now used if both __MACH__
- and __APPLE__ are defined. Hopefully these are the
- correct system macros to check. Thanks for Stephan
- Fiedler for providing information on Mac OS X.
-
-11/02/2002 mcs@astro.caltech.edu
- configure.in configure getline.c
- Some systems don't have term.h, and others have it hidden
- in an ncurses sub-directory of the standard system include
- directory. If term.h can't be found, simply don't include
- it. If it is in an ncurses sub-directory, include
- ncurses/term.h instead of term.h.
-
-04/02/2002 mcs@astro.caltech.edu
- configure.in configure Makefile.in Makefile.rules
- Use ranlib on systems that need it (Mac OS X). Also,
- make all components of the installation directories where
- needed, instead of assuming that they exist.
-
-04/02/2002 mcs@astro.caltech.edu
- getline.c
- When the tab completion binding was unbound from the tab
- key, hitting the tab key caused gl_get_line() to ring the
- bell instead of inserting a tab character. This is
- problematic when using the 'enhance' program with
- Jython, since tabs are important in Python. I have
- corrected this.
-
-10/12/2001 Version 1.4.0 released.
-
-10/12/2001 mcs@astro.caltech.edu
- getline.c
- If the TIOCGWINSZ ioctl doesn't work, as is the case when
- running in an emacs shell, leave the size unchanged, rather
- than returning a fatal error.
-
-07/12/2001 mcs@astro.caltech.edu
- configure.in configure
- Now that the configure version of CFLAGS is included in
- the makefile, I noticed that the optimization flags -g
- and -O2 had been added. It turns out that if CFLAGS isn't
- already set, the autoconf AC_PROG_CC macro initializes it
- with these two optimization flags. Since this would break
- backwards compatibility in embedded distributions that
- already use the OPT= makefile argument, and because
- turning debugging on needlessly bloats the library, I now
- make sure that CFLAGS is set before calling this macro.
-
-07/12/2001 mcs@astro.caltech.edu
- enhance.c
- Use argv[0] in error reports instead of using a
- hardcoded macro.
-
-07/12/2001 mcs@astro.caltech.edu
- getline.c
- The cut buffer wasn't being cleared after being
- used as a work buffer by gl_load_history().
-
-06/12/2001 mcs@astro.caltech.edu
- configure.in configure
- I removed my now redundant definition of SUN_TPUTS from
- CFLAGS. I also added "-I/usr/include" to CFLAGS under
- Solaris to prevent gcc from seeing conflicting versions
- of system header files in /usr/local/include.
-
-06/12/2001 Markus Gyger (logged here by mcs)
- Lots of files.
- Lots of corrections to misspellings and typos in the
- comments.
- getline.c
- Markus reverted a supposed fix that I added a day or two
- ago. I had incorrectly thought that in Solaris 8, Sun had
- finally brought their declaration of the callback
- function of tputs() into line with other systems, but it
- turned out that gcc was pulling in a GNU version of
- term.h from /usr/local/include, and this was what
- confused me.
-
-05/12/2001 mcs@astro.caltech.edu
- Makefile.in
- I added @CFLAGS@ to the CFLAGS assignment, so that
- if CFLAGS is set as an environment variable when
- configure is run, the corresponding make variable
- includes its values in the output makefile.
-
-05/12/2001 mcs@astro.caltech.edu
- getline.c libtecla.h libtecla.map man3/gl_get_line.3
- man3/gl_last_signal.3
- I added a function that programs can use to find out
- which signal caused gl_get_line() to return EINTR.
-
-05/12/2001 mcs@astro.caltech.edu
- getline.c
- When the newline action was triggered by a printable
- character, it failed to display that character. It now
- does. Also, extra control codes that I had added, to
- clear to the end of the display after the carriage return,
- but before displaying the prompt, were confusing expect
- scripts, so I have removed them. This step is now done
- instead in gl_redisplay() after displaying the full input
- line.
-
-05/12/2001 mcs@astro.caltech.edu
- getline.c man3/gl_get_line.3
- A user convinced me that continuing to invoke meta
- keybindings for meta characters that are printable is a
- bad idea, as is allowing users to ask to have setlocale()
- called behind the application's back. I have thus changed
- this. The setlocale configuration option has gone, and
- gl_get_line() is now completely 8-bit clean, by default.
- This means that if a meta character is printable, it is
- treated as a literal character, rather than a potential
- M-c binding. Meta bindings can still be invoked via
- their Esc-c equivalents, and indeed most terminal
- emulators either output such escape pairs by default when
- the meta character is pressed, or can be configured to do
- so. I have documented how to configure xterm to do this,
- in the man page.
-
-03/12/2001 mcs@astro.caltech.edu
- getline.c man3/gl_get_line.3
- gl_get_line() by default now prints any 8-bit printable
- characters that don't match keybindings. Previously
- characters > 127 were only printed if preceded by the
- literal-next action. Alternatively, by placing the
- command literal_if_printable in the tecla configuration
- file, all printable characters are treated as literal
- characters, even if they are bound to action functions.
-
- For international users of programs written by
- programmers that weren't aware of the need to call
- setlocale() to support alternate character sets, the
- configuration file can now also contain the single-word
- command "setlocale", which tells gl_get_line() to remedy
- this.
-
-27/11/2001 mcs@astro.caltech.edu
- demo.c demo2.c enhance man3/gl_get_line.3
- All demos and programs now call setlocale(LC_CTYPE,"").
- This makes them support character sets of different
- locales, where specified with the LC_CTYPE, LC_ALL, or
- LANG environment variables. I also added this to the demo
- in the man page, and documented its effect.
-
-27/11/2001 mcs@astro.caltech.edu
- getline.c
- When displaying unsigned characters with values over
- 127 literally, previously it was assumed that they would
- all be displayable. Now isprint() is consulted, and if it
- says that a character isn't printable, the character code
- is displayed in octal like \307. In non-C locales, some
- characters with values > 127 are displayable, and
- isprint() tells gl_get_line() which are and which aren't.
-
-27/11/2001 mcs@astro.caltech.edu
- getline.c pathutil.c history.c enhance.c demo2.c
- All arguments of the ctype.h character class functions
- are now cast to (int)(unsigned char). Previously they
- were cast to (int), which doesn't correctly conform to
- the requirements of the C standard, and could cause
- problems for characters with values > 127 on systems
- with signed char's.
-
-26/11/2001 mcs@astro.caltech.edu
- man3/enhance.3 man3/libtecla.3
- I started writing a man page for the enhance program.
-
-26/11/2001 mcs@astro.caltech.edu
- Makefile.in Makefile.rules INSTALL
- It is now possible to specify whether the demos and other
- programs are to be built, by overriding the default
- values of the DEMOS, PROGRAMS and PROGRAMS_R variables.
- I have also documented the BINDIR variable and the
- install_bin makefile target.
-
-22/11/2001 mcs@astro.caltech.edu
- getline.c libtecla.h libtecla.map man3/gl_get_line.3
- man3/gl_ignore_signal.3 man3/gl_trap_signal.3
- Signal handling has now been modified to be customizable.
- Signals that are trapped by default can be removed from
- the list of trapped signals, and signals that aren't
- currently trapped, can be added to the list. Applications
- can also specify the signal and terminal environments in
- which an application's signal handler is invoked, and
- what gl_get_line() does after the signal handler returns.
-
-13/11/2001 mcs@astro.caltech.edu
- getline.c man3/gl_get_line.3
- Added half-bright, reverse-video and blinking text to the
- available prompt formatting options.
- getline.c
- Removed ^O from the default VT100 sgr0 capability
- string. Apparently it can cause problems with some
- terminal emulators, and we don't need it, since it turns
- off the alternative character set mode, which we don't
- use.
- getline.c
- gl_tigetstr() and gl_tgetstr() didn't guard against the
- error returns of tigetstr() and tgetstr() respectively.
- They now do.
-
-11/11/2001 mcs@astro.caltech.edu
- getline.c libtecla.h libtecla.map man3/gl_get_line.3
- man3/gl_prompt_style.3
- Although the default remains to display the prompt string
- literally, the new gl_prompt_style() function can be used
- to enable text attribute formatting directives in prompt
- strings, such as underlining, bold font, and highlighting
- directives.
-
-09/11/2001 mcs@astro.caltech.edu
- enhance.c Makefile.rules configure.in configure
- I added a new program to the distribution that allows one
- to run most third party programs with the tecla library
- providing command-line editing.
-
-08/11/2001 mcs@astro.caltech.edu
- libtecla.h getline.c man3/gl_get_line.3 history.c history.h
- I added a max_lines argument to gl_show_history() and
- _glh_show_history(). This can optionally be used to
- set a limit on the number of history lines displayed.
- libtecla.h getline.c man3/gl_get_line.3
- I added a new function called gl_replace_prompt(). This
- can be used by gl_get_line() callback functions to
- request that a new prompt be use when they return.
-
-06/11/2001 mcs@astro.caltech.edu
- getline.c man3/gl_get_line.3
- I implemented, bound and documented the list-history
- action, used for listing historical lines of the current
- history group.
- getline.c man3/gl_get_line.3 man3/gl_echo_mode.3
- I wrote functions to specify and query whether subsequent
- lines will be visible as they are being typed.
-
-28/10/2001 mcs@astro.caltech.edu
- getline.c man3/gl_get_line.3
- For those cases where a terminal provides its own
- high-level terminal editing facilities, you can now
- specify an edit-mode argument of 'none'. This disables
- all tecla key bindings, and by using canonical terminal
- input mode instead of raw input mode, editing is left up
- to the terminal driver.
-
-21/10/2001 mcs@astro.caltech.edu
- libtecla.h getline.c history.c history.h
- man3/gl_get_line.3 man3/gl_history_info.3
- I added the new gl_state_of_history(),
- gl_range_of_history() and gl_size_of_history()
- functions for querying information about the
- history list.
- history.c
- While testing the new gl_size_of_history()
- function, I noticed that when the history buffer
- wrapped, any location nodes of old lines between
- the most recent line and the end of the buffer
- weren't being removed. This could result in bogus
- entries appearing at the start of the history list.
- Now fixed.
-
-20/10/2001 mcs@astro.caltech.edu
-
- libtecla.h getline.c history.c history.h
- man3/gl_get_line.3 man3/gl_lookup_history.3
- I added a function called gl_lookup_history(), that
- the application can use to lookup lines in the history
- list.
- libtecla.h getline.c history.c history.h man3/gl_get_line.3
- gl_show_history() now takes a format string argument
- to control how the line is displayed, and with what
- information. It also now provides the option of either
- displaying all history lines or just those of the
- current history group.
- getline.c man3/gl_get_line.3
- gl_get_line() only archives lines in the history buffer
- if the newline action was invoked by a newline or
- carriage return character.
-
-16/10/2001 mcs@astro.caltech.edu
-
- history.c history.h getline.c libtecla.h libtecla.map
- man3/gl_get_line.3 man3/gl_resize_history.3
- man3/gl_limit_history.3 man3/gl_clear_history.3
- man3/gl_toggle_history.3
- I added a number of miscellaneous history configuration
- functions. You can now resize or delete the history
- buffer, limit the number of lines that are allowed in the
- buffer, clear either all history or just the history of
- the current history group, and temporarily enable and
- disable the history mechanism.
-
-13/10/2001 mcs@astro.caltech.edu
-
- getline.c
- tputs_fp is now only declared if using termcap or
- terminfo.
- getline.c libtecla.map man3/gl_get_line.3
- man3/gl_terminal_size.3
- I added a public gl_terminal_size() function for
- updating and querying the current size of the terminal.
- update_version configure.in libtecla.h
- A user noted that on systems where the configure script
- couldn't be used, it was inconvenient to have the version
- number macros set by the configure script, so they are
- now specified in libtecla.h. To reduce the likelihood
- that the various files where the version number now
- appears might get out of sync, I have written the
- update_version script, which changes the version number
- in all of these files to a given value.
-
-01/10/2001 mcs@astro.caltech.edu
-
- getline.c history.c history.h man3/gl_get_line.3
- I added a max_lines argument to gl_save_history(), to
- allow people to optionally place a ceiling on the number
- of history lines saved. Specifying this as -1 sets the
- ceiling to infinity.
-
-01/10/2001 mcs@astro.caltech.edu
-
- configure.in configure
- Under digital unix, getline wouldn't compile with
- _POSIX_C_SOURCE set, due to type definitions needed by
- select being excluded by this flag. Defining the
- _OSF_SOURCE macro as well on this system, resolved this.
-
-30/09/2001 mcs@astro.caltech.edu
-
- getline.c libtecla.h history.c history.h man3/gl_get_line.3
- man3/gl_group_history.3
- I implemented history streams. History streams
- effectively allow multiple history lists to be stored in
- a single history buffer. Lines in the buffer are tagged
- with the current stream identification number, and
- lookups only consider lines that are marked with the
- current stream identifier.
- getline.c libtecla.h history.c history.h man3/gl_get_line.3
- man3/gl_show_history.3
- The new gl_show_history function displays the current
- history to a given stdio output stream.
-
-29/09/2001 mcs@astro.caltech.edu
-
- getline.c
- Previously new_GetLine() installed a persistent signal
- handler to be sure to catch the SIGWINCH (terminal size
- change) signal between calls to gl_get_line(). This had
- the drawback that if multiple GetLine objects were
- created, only the first GetLine object used after the
- signal was received, would see the signal and adapt to
- the new terminal size. Instead of this, a signal handler
- for sigwinch is only installed while gl_get_line() is
- running, and just after installing this handler,
- gl_get_line() checks for terminal size changes that
- might have occurred while the signal handler wasn't
- installed.
- getline.c
- Dynamically allocated copies of capability strings looked
- up in the terminfo or termcap databases are now made, so
- that calls to setupterm() etc for one GetLine object
- don't get trashed when another GetLine object calls
- setupterm() etc. It is now safe to allocate and use
- multiple GetLine objects, albeit only within a single
- thread.
-
-28/09/2001 mcs@astro.caltech.edu
-
- version.c Makefile.rules
- I added a function for querying the version number of
- the library.
-
-26/09/2001 mcs@astro.caltech.edu
-
- getline.c man3/gl_get_line.3
- I added the new gl_watch_fd() function, which allows
- applications to register callback functions to be invoked
- when activity is seen on arbitrary file descriptors while
- gl_get_line() is awaiting keyboard input from the user.
-
- keytab.c
- If a request is received to delete a non-existent
- binding, which happens to be an ambiguous prefix of other
- bindings no complaint is now generated about it being
- ambiguous.
-
-23/09/2001 mcs@astro.caltech.edu
-
- getline.c history.c history.h man3/gl_get_line.3
- libtecla.map demo.c
- I added new public functions for saving and restoring the
- contents of the history list. The demo program now uses
- these functions to load and save history in ~/.demo_history.
-
-23/09/2001 mcs@astro.caltech.edu
-
- getline.c
- On trying the demo for the first time on a KDE konsole
- terminal, I discovered that the default M-O binding
- to repeat history was hiding the arrow keys, which are
- M-OA etc. I have removed this binding. The M-o (ie the
- lower case version of this), is still bound.
-
-18/09/2001 mcs@astro.caltech.edu
-
- getline.c man3/gl_get_line.3 libtecla.map
- Automatic reading of ~/.teclarc is now postponed until
- the first call to gl_get_line(), to give the application
- the chance to specify alternative configuration sources
- with the new function gl_configure_getline(). The latter
- function allows configuration to be done with a string, a
- specified application-specific file, and/or a specified
- user-specific file. I also added a read-init-files action
- function, for re-reading the configuration files, if any.
- This is by default bound to ^X^R. This is all documented
- in gl_get_line.3.
-
-08/09/2001 mcs@astro.caltech.edu
-
- getline.c man3/gl_get_line.3
- It is now possible to bind actions to key-sequences
- that start with printable characters. Previously
- keysequences were required to start with meta or control
- characters. This is documented in gl_get_line.3.
-
- getline.c man3/gl_get_line.3
- A customized completion function can now arrange for
- gl_get_line() to return the current input line whenever a
- successful completion has been made. This is signalled by
- setting the last character of the optional continuation
- suffix to a newline character. This is documented in
- gl_get_line.3.
-
-05/07/2001 Bug reported by Mike MacFaden, fixed by mcs
-
- configure.in
- There was a bug in the configure script that only
- revealed itself on systems without termcap but not
- terminfo (eg. NetBSD). I traced the bug back to a lack of
- sufficient quoting of multi-line m4 macro arguments in
- configure.in, and have now fixed this and recreated the
- configure script.
-
-05/07/2001 Bug reported and patched by Mike MacFaden (patch modified
- by mcs to match original intentions).
-
- getline.c
- getline.c wouldn't compile when termcap was selected as
- the terminal information database. setupterm() was being
- passed a non-existent variable, in place of the term[]
- argument of gl_control_strings(). Also if
- gl_change_terminal() is called with term==NULL, "ansi"
- is now substituted.
-
-02/07/2001 Version 1.3.3 released.
-
-27/06/2001 mcs@astro.caltech.edu
-
- getline.c expand.c cplmatch.c
- Added checks to fprintf() statements that write to the
- terminal.
- getline.c
- Move the cursor to the end of the line before suspending,
- so that the cursor doesn't get left in the middle of the
- input line.
- Makefile.in
- On systems that don't support shared libraries, the
- distclean target of make deleted libtecla.h. This has
- now been fixed.
- getline.c
- gl_change_terminal() was being called by gl_change_editor(),
- with the unwanted side effect that raw terminal modes were
- stored as those to be restored later, if called by an
- action function. gl_change_terminal() was being called in
- this case to re-establish terminal-specific key bindings,
- so I have just split this part of the function out into
- a separate function for both gl_change_editor() and
- gl_change_terminal() to call.
-
-12/06/2001 mcs@astro.caltech.edu
-
- getline.c
- Signal handling has been improved. Many more signals are
- now trapped, and instead of using a simple flag set by a
- signal handler, race conditions are avoided by blocking
- signals during most of the gl_get_line() code, and
- unblocking them via calls to sigsetjmp(), just before
- attempting to read each new character from the user.
- The matching use of siglongjmp() in the signal
- handlers ensures that signals are reblocked correctly
- before they are handled. In most cases, signals cause
- gl_get_line() to restore the terminal modes and signal
- handlers of the calling application, then resend the
- signal to the application. In the case of SIGINT, SIGHUP,
- SIGPIPE, and SIGQUIT, if the process still exists after
- the signals are resent, gl_get_line() immediately returns
- with appropriate values assigned to errno. If SIGTSTP,
- SIGTTIN or SIGTTOU signals are received, the process is
- suspended. If any other signal is received, and the
- process continues to exist after the signal is resent to
- the calling application, line input is resumed after the
- terminal is put back into raw mode, the gl_get_line()
- signal handling is restored, and the input line redrawn.
- man/gl_get_line(3)
- I added a SIGNAL HANDLING section to the gl_get_line()
- man page, describing the new signal handling features.
-
-21/05/2001 Version 1.3.2 released.
-
-21/05/2001 mcs@astro.caltech.edu
-
- getline.c
- When vi-replace-char was used to replace the character at
- the end of the line, it left the cursor one character to
- its right instead of on top of it. Now rememdied.
- getline.c
- When undoing, to properly emulate vi, the cursor is now
- left at the leftmost of the saved and current cursor
- positions.
- getline.c man3/gl_get_line.3
- Implemented find-parenthesis (%), delete-to-paren (M-d%),
- vi-change-to-paren (M-c%), copy-to-paren (M-y%).
- cplfile.c pcache.c
- In three places I was comparing the last argument of
- strncmp() to zero instead of the return value of
- strncmp().
-
-20/05/2001 mcs@astro.caltech.edu
-
- getline.c man3/gl_get_line.3
- Implemented and documented the vi-repeat-change action,
- bound to the period key. This repeats the last action
- that modified the input line.
-
-19/05/2001 mcs@astro.caltech.edu
-
- man3/gl_get_line.3
- I documented the new action functions and bindings
- provided by Tim Eliseo, plus the ring-bell action and
- the new "nobeep" configuration option.
- getline.c
- I modified gl_change_editor() to remove and reinstate the
- terminal settings as well as the default bindings, since
- these have editor-specific differences. I also modified
- it to not abort if a key-sequence can't be bound for some
- reason. This allows the new vi-mode and emacs-mode
- bindings to be used safely.
- getline.c
- When the line was re-displayed on receipt of a SIGWINCH
- signal, the result wasn't visible until the next
- character was typed, since a call to fflush() was needed.
- gl_redisplay_line() now calls gl_flush_output() to remedy
- this.
-
-17/05/2001 mcs@astro.catlech.edu
-
- getline.c
- Under Linux, calling fflush(gl->output_fd) hangs if
- terminal output has been suspended with ^S. With the
- tecla library taking responsability for reading the stop
- and start characters this was a problem, because once
- hung in fflush(), the keyboard input loop wasn't entered,
- so the user couldn't type the start character to resume
- output. To remedy this, I now have the terminal process
- these characters, rather than the library.
-
-12/05/2001 mcs@astro.caltech.edu
-
- getline.c
- The literal-next action is now implemented as a single
- function which reads the next character itself.
- Previously it just set a flag which effected the
- interpretation of the next character read by the input
- loop.
- getline.c
- Added a ring-bell action function. This is currently
- unbound to any key by default, but it is used internally,
- and can be used by users that want to disable any of the
- default key-bindings.
-
-12/05/2001 Tim Eliseo (logged here by mcs)
-
- getline.c
- Don't reset gl->number until after calling an action
- function. By looking at whether gl->number is <0 or
- not, action functions can then tell whether the count
- that they were passed was explicitly specified by the
- user, as opposed to being defaulted to 1.
- getline.c
- In vi, the position at which input mode is entered
- acts as a barrier to backward motion for the few
- backward moving actions that are enabled in input mode.
- Tim added this barrier to getline.
- getline.c
- In gl_get_line() after reading an input line, or
- having the read aborted by a signal, the sig_atomic_t
- gl_pending_signal was being compared to zero instead
- of -1 to see if no signals had been received.
- gl_get_line() will thus have been calling raise(-1),
- which luckily didn't seem to do anything. Tim also
- arranged for errno to be set to EINTR when a signal
- aborts gl_get_line().
- getline.c
- The test in gl_add_char_to_line() for detecting
- when overwriting a character with a wider character,
- had a < where it needed a >. Overwriting with a wider
- character thus overwrote trailing characters. Tim also
- removed a redundant copy of the character into the
- line buffer.
- getline.c
- gl_cursor_left() and gl->cursor_right() were executing
- a lot of redundant code, when the existing call to the
- recently added gl_place_cursor() function, does all that
- is necessary.
- getline.c
- Remove redundant code from backward_kill_line() by
- re-implimenting in terms of gl_place_cursor() and
- gl_delete_chars().
- getline.c
- gl_forward_delete_char() now records characters in cut
- buffer when in vi command mode.
- getline.c
- In vi mode gl_backward_delete_char() now only deletes
- up to the point at which input mode was entered. Also
- gl_delete_chars() restores from the undo buffer when
- deleting in vi insert mode.
- getline.c
- Added action functions, vi-delete-goto-column,
- vi-change-to-bol, vi-change-line, emacs-mode, vi-mode,
- vi-forward-change-find, vi-backward-change-find,
- vi-forward-change-to, vi-backward-change-to,
- vi-change-goto-col, forward-delete-find, backward-delete-find,
- forward-delete-to, backward-delete-to,
- delete-refind, delete-invert-refind, forward-copy-find,
- backward-copy-find, forward-copy-to, backward-copy-to
- copy-goto-column, copy-rest-of-line, copy-to-bol, copy-line,
- history-re-search-forward, history-re-search-backward.
-
-06/05/2001 Version 1.3.1 released.
-
-03/05/2001 mcs@astro.caltech.edu
-
- configure.in
- Old versions of GNU ld don't accept version scripts.
- Under Linux I thus added a test to try out ld with
- the --version-script argument to see if it works.
- If not, version scripts aren't used.
- configure.in
- My test for versions of Solaris earlier than 7
- failed when confronted by a three figure version
- number (2.5.1). Fixed.
-
-30/04/2001 mcs@astro.caltech.edu
-
- getline.c
- In vi mode, history-search-backward and
- history-search-forward weren't doing anything when
- invoked at the start of an empty line, whereas
- they should have acted like up-history and down-history.
- Makefile.in Makefile.rules
- When shared libraries are being created, the build
- procedure now arranges for any alternate library
- links to be created as well, before linking the
- demos. Without this the demos always linked to the
- static libraries (which was perfectly ok, but wasn't a
- good example).
- Makefile.in Makefile.rules
- On systems on which shared libraries were being created,
- if there were no alternate list of names, make would
- abort due to a Bourne shell 'for' statement that didn't
- have any arguments. Currently there are no systems who's
- shared library configurations would trigger this
- problem.
- Makefile.rules
- The demos now relink to take account of changes to the
- library.
- configure.in configure
- When determining whether the reentrant version of the
- library should be compiled by default, the configure
- script now attempts to compile a dummy program that
- includes all of the appropriate system headers and
- defines _POSIX_C_SOURCE. This should now be a robust test
- on systems which use C macros to alias these function
- names to other internal functions.
- configure.in
- Under Solaris 2.6 and earlier, the curses library is in
- /usr/ccs/lib. Gcc wasn't finding this. In addition to
- remedying this, I had to remove "-z text" from
- LINK_SHARED under Solaris to get it to successfully
- compile the shared library against the static curses
- library.
- configure.in
- Under Linux the -soname directive was being used
- incorrectly, citing the fully qualified name of the
- library instead of its major version alias. This will
- unfortunately mean that binaries linked with the 1.2.3
- and 1.2.4 versions of the shared library won't use
- later versions of the library unless relinked.
-
-30/04/2001 mcs@astro.caltech.edu
-
- getline.c
- In gl_get_input_line(), don't redundantly copy the
- start_line if start_line == gl->line.
-
-30/04/2001 Version 1.3.0 released.
-
-28/04/2001 mcs@astro.caltech.edu
-
- configure.in
- I removed the --no-undefined directive from the Linux
- LINK_SHARED command. After recent patches to our RedHat
- 7.0 systems ld started reporting some internal symbols of
- libc as being undefined. Using nm on libc indicated that
- the offending symbols are indeed defined, albeit as
- "common" symbols, so there appears to be a bug in
- RedHat's ld. Removing this flag allows the tecla shared
- library to compile, and programs appear to function fine.
- man3/gl_get_line.3
- The default key-sequence used to invoke the
- read-from-file action was incorrectly cited as ^Xi
- instead of ^X^F.
-
-26/04/2001 mcs@astro.caltech.edu
-
- getline.c man3/gl_get_line.3
- A new vi-style editing mode was added. This involved
- adding many new action functions, adding support for
- specifying editing modes in users' ~/.teclarc files,
- writing a higher level cursor motion function to support
- the different line-end bounds required in vi command
- mode, and a few small changes to support the fact that vi
- has two modes, input mode and command mode with different
- bindings.
-
- When vi editing mode is enabled, any binding that starts
- with an escape or a meta character, is interpreted as a
- command-mode binding, and switches the library to vi
- command mode if not already in that mode. Once in command
- mode the first character of all keysequences entered
- until input mode is re-enabled, are quietly coerced to
- meta characters before being looked up in the key-binding
- table. So, for example, in the key-binding table, the
- standard vi command-mode 'w' key, which moves the cursor
- one word to the right, is represented by M-w. This
- emulates vi's dual sets of bindings in a natural way
- without needing large changes to the library, or new
- binding syntaxes. Since cursor keys normally emit
- keysequences which start with escape, it also does
- something sensible when a cursor key is pressed during
- input mode (unlike true vi, which gets upset).
-
- I also added a ^Xg binding for the new list-glob action
- to both the emacs and vi key-binding tables. This lists
- the files that match the wild-card expression that
- precedes it on the command line.
-
- The function that reads in ~/.teclarc used to tell
- new_GetLine() to abort if it encountered anything that it
- didn't understand in this file. It now just reports an
- error and continues onto the next line.
- Makefile.in:
- When passing LIBS=$(LIBS) to recursive invokations of
- make, quotes weren't included around the $(LIBS) part.
- This would cause problems if LIBS ever contained more
- than one word (with the supplied configure script this
- doesn't happen currently). I added these quotes.
- expand.c man3/ef_expand_file.3:
- I wrote a new public function called ef_list_expansions(),
- to list the matching filenames returned by
- ef_expand_file().
-
- I also fixed the example in the man page, which cited
- exp->file instead of exp->files, and changed the
- dangerous name 'exp' with 'expn'.
- keytab.c:
- Key-binding tables start with 100 elements, and are
- supposedly incremented in size by 100 elements whenever
- the a table runs out of space. The realloc arguments to
- do this were wrong. This would have caused problems if
- anybody added a lot of personal bindings in their
- ~/.teclarc file. I only noticed it because the number of
- key bindings needed by the new vi mode exceeded this
- number.
- libtecla.map
- ef_expand_file() is now reported as having been added in
- the upcoming 1.3.0 release.
-
-25/03/2001 Markus Gyger (logged here by mcs)
-
- Makefile.in:
- Make symbolic links to alternative shared library names
- relative instead of absolute.
- Makefile.rules:
- The HP-UX libtecla.map.opt file should be made in the
- compilation directory, to allow the source code directory
- to be on a readonly filesystem.
- cplmatch.c demo2.c history.c pcache.c
- To allow the library to be compiled with a C++ compiler,
- without generating warnings, a few casts were added where
- void* return values were being assigned directly to
- none void* pointer variables.
-
-25/03/2001 mcs@astro.caltech.edu
-
- libtecla.map:
- Added comment header to explain the purpose of the file.
- Also added cpl_init_FileArgs to the list of exported
- symbols. This symbol is deprecated, and no longer
- documented, but for backwards compatibility, it should
- still be exported.
- configure:
- I had forgotten to run autoconf before releasing version
- 1.2.4, so I have just belatedly done so. This enables
- Markus' changes to "configure.in" documented previously,
- (see 17/03/2001).
-
-20/03/2001 John Levon (logged here by mcs)
-
- libtecla.h
- A couple of the function prototypes in libtecla.h have
- (FILE *) argument declarations, which means that stdio.h
- needs to be included. The header file should be self
- contained, so libtecla.h now includes stdio.h.
-
-18/03/2001 Version 1.2.4 released.
-
- README html/index.html configure.in
- Incremented minor version from 3 to 4.
-
-18/03/2001 mcs@astro.caltech.edu
-
- getline.c
- The fix for the end-of-line problem that I released a
- couple of weeks ago, only worked for the first line,
- because I was handling this case when the cursor position
- was equal to the last column, rather than when the cursor
- position modulo ncolumn was zero.
- Makefile.in Makefile.rules
- The demos are now made by default, their rules now being
- int Makefile.rules instead of Makefile.in.
- INSTALL
- I documented how to compile the library in a different
- directory than the distribution directory.
- I also documented features designed to facilitate
- configuring and building the library as part of another
- package.
-
-17/03/2001 Markus Gyger (logged here by mcs)
-
- getline.c
- Until now cursor motions were done one at a time. Markus
- has added code to make use the of the terminfo capability
- that moves the cursor by more than one position at a
- time. This greatly improves performance when editing near
- the start of long lines.
- getline.c
- To further improve performance, Markus switched from
- writing one character at a time to the terminal, using
- the write() system call, to using C buffered output
- streams. The output buffer is only flushed when
- necessary.
- Makefile.rules Makefile.in configure.in
- Added support for compiling for different architectures
- in different directories. Simply create another directory
- and run the configure script located in the original
- directory.
- Makefile.in configure.in libtecla.map
- Under Solaris, Linux and HP-UX, symbols that are to be
- exported by tecla shared libraries are explicitly specified
- via symbol map files. Only publicly documented functions
- are thus visible to applications.
- configure.in
- When linking shared libraries under Solaris SPARC,
- registers that are reserved for applications are marked
- as off limits to the library, using -xregs=no%appl when
- compiling with Sun cc, or -mno-app-regs when compiling
- with gcc. Also removed -z redlocsym for Solaris, which
- caused problems under some releases of ld.
- homedir.c (after minor changes by mcs)
- Under ksh, ~+ expands to the current value of the ksh
- PWD environment variable, which contains the path of
- the current working directory, including any symbolic
- links that were traversed to get there. The special
- username "+" is now treated equally by tecla, except
- that it substitutes the return value of getcwd() if PWD
- either isn't set, or if it points at a different
- directory than that reported by getcwd().
-
-08/03/2001 Version 1.2.3 released.
-
-08/03/2001 mcs@astro.caltech.edu
-
- getline.c
- On compiling the library under HP-UX for the first time
- I encountered and fixed a couple of bugs:
-
- 1. On all systems except Solaris, the callback function
- required by tputs() takes an int argument for the
- character that is to be printed. Under Solaris it
- takes a char argument. The callback function was
- passing this argument, regardless of type, to write(),
- which wrote the first byte of the argument. This was
- fine under Solaris and under little-endian systems,
- because the first byte contained the character to be
- written, but on big-endian systems, it always wrote
- the zero byte at the other end of the word. As a
- result, no control characters were being written to
- the terminal.
- 2. While attempting to start a newline after the user hit
- enter, the library was outputting the control sequence
- for moving the cursor down, instead of the newline
- character. On many systems the control sequence for
- moving the cursor down happends to be a newline
- character, but under HP-UX it isn't. The result was
- that no new line was being started under HP-UX.
-
-04/03/2001 mcs@astro.caltech.edu
-
- configure.in Makefile.in Makefile.stub configure config.guess
- config.sub Makefile.rules install-sh PORTING README INSTALL
- Configuration and compilation of the library is now
- performed with the help of an autoconf configure
- script. In addition to relieving the user of the need to
- edit the Makefile, this also allows automatic compilation
- of the reentrant version of the library on platforms that
- can handle it, along with the creation of shared
- libraries where configured. On systems that aren't known
- to the configure script, just the static tecla library is
- compiled. This is currently the case on all systems
- except Linux, Solaris and HP-UX. In the hope that
- installers will provide specific conigurations for other
- systems, the configure.in script is heavily commented,
- and instructions on how to use are included in a new
- PORTING file.
-
-24/02/2001 Version 1.2b released.
-
-22/02/2001 mcs@astro.caltech.edu
-
- getline.c
- It turns out that most terminals, but not all, on writing
- a character in the rightmost column, don't wrap the
- cursor onto the next line until the next character is
- output. This library wasn't aware of this and thus if one
- tried to reposition the cursor from the last column,
- gl_get_line() thought that it was moving relative to a
- point on the next line, and thus moved the cursor up a
- line. The fix was to write one extra character when in
- the last column to force the cursor onto the next line,
- then backup the cursor to the start of the new line.
- getline.c
- On terminal initialization, the dynamic LINES and COLUMNS
- environment variables were ignored unless
- terminfo/termcap didn't return sensible dimensions. In
- practice, when present they should override the static
- versions in the terminfo/termcap databases. This is the
- new behavior. In reality this probably won't have caused
- many problems, because a SIGWINCH signal which informs of
- terminal size changes is sent when the terminal is
- opened, so the dimensions established during
- initialization quickly get updated on most systems.
-
-18/02/2001 Version 1.2a released.
-
-18/02/2001 mcs@astro.caltech.edu
-
- getline.c
- Three months ago I moved the point at which termios.h
- was included in getline.c. Unfortunately, I didn't notice
- that this moved it to after the test for TIOCGWINSZ being
- defined. This resulted in SIGWINCH signals not being
- trapped for, and thus terminal size changes went
- unnoticed. I have now moved the test to after the
- inclusion of termios.h.
-
-12/02/2001 Markus Gyger (described here by mcs)
-
- man3/pca_lookup_file.3 man3/gl_get_line.3
- man3/ef_expand_file.3 man3/cpl_complete_word.3
- In the 1.2 release of the library, all functions in the
- library were given man pages. Most of these simply
- include one of the above 4 man pages, which describe the
- functions while describing the modules that they are in.
- Markus added all of these function names to the lists in
- the "NAME" headers of the respective man pages.
- Previously only the primary function of each module was
- named there.
-
-11/02/2001 mcs@astro.caltech.edu
-
- getline.c
- On entering a line that wrapped over two or more
- terminal, if the user pressed enter when the cursor
- wasn't on the last of the wrapped lines, the text of the
- wrapped lines that followed it got mixed up with the next
- line written by the application, or the next input
- line. Somehow this slipped through the cracks and wasn't
- noticed until now. Anyway, it is fixed now.
-
-09/02/2001 Version 1.2 released.
-
-04/02/2001 mcs@astro.caltech.edu
-
- pcache.c libtecla.h
- With all filesystems local, demo2 was very fast to start
- up, but on a Sun system with one of the target
- directories being on a remote nfs mounted filesystem, the
- startup time was many seconds. This was due to the
- executable selection callback being applied to all files
- in the path at startup. To avoid this, all files are now
- included in the cache, and the application specified
- file-selection callback is only called on files as they
- are matched. Whether the callback rejected or accepted
- them is then cached so that the next time an already
- checked file is looked at, the callback doesn't have to
- be called. As a result, startup is now fast on all
- systems, and since usually there are only a few matching
- file completions at a time, the delay during completion
- is also usually small. The only exception is if the user
- tries to complete an empty string, at which point all
- files have to be checked. Having done this once, however,
- doing it again is fast.
- man3/pca_lookup_file.3
- I added a man page documenting the new PathCache module.
- man3/.3
- I have added man pages for all of the functions in each
- of the modules. These 1-line pages use the .so directive
- to redirect nroff to the man page of the parent module.
- man Makefile update_html
- I renamed man to man3 to make it easier to test man page
- rediction, and updated Makefile and update_html
- accordingly. I also instructed update_html to ignore
- 1-line man pages when making html equivalents of the man
- pages.
- cplmatch.c
- In cpl_list_completions() the size_t return value of
- strlen() was being used as the length argument of a "%*s"
- printf directive. This ought to be an int, so the return
- value of strlen() is now cast to int. This would have
- caused problems on architectures where the size of a
- size_t is not equal to the size of an int.
-
-02/02/2001 mcs@astro.caltech.edu
-
- getline.c
- Under UNIX, certain terminal bindings are set using the
- stty command. This, for example, specifies which control
- key generates a user-interrupt (usually ^C or ^Y). What I
- hadn't realized was that ASCII NUL is used as the way to
- specify that one of these bindings is unset. I have now
- modified the code to skip unset bindings, leaving the
- corresponding action bound to the built-in default, or a
- user provided binding.
-
-28/01/2001 mcs@astro.caltech.edu
-
- pcache.c libtecla.h
- A new module was added which supports searching for files
- in any colon separated list of directories, such as the
- unix execution PATH environment variable. Files in these
- directories, after being individually okayed for
- inclusion via an application provided callback, are
- cached in a PathCache object. You can then look up the
- full pathname of a given filename, or you can use the
- provided completion callback to list possible completions
- in the path-list. The contents of relative directories,
- such as ".", obviously can't be cached, so these
- directories are read on the fly during lookups and
- completions. The obvious application of this facility is
- to provide Tab-completion of commands, and thus a
- callback to place executable files in the cache, is
- provided.
- demo2.c
- This new program demonstrates the new PathCache
- module. It reads and processes lines of input until the
- word 'exit' is entered, or C-d is pressed. The default
- tab-completion callback is replaced with one which at the
- start of a line, looks up completions of commands in the
- user's execution path, and when invoked in other parts of
- the line, reverts to normal filename completion. Whenever
- a new line is entered, it extracts the first word on the
- line, looks it up in the user's execution path to see if
- it corresponds to a known command file, and if so,
- displays the full pathname of the file, along with the
- remaining arguments.
- cplfile.c
- I added an optional pair of callback function/data
- members to the new cpl_file_completions() configuration
- structure. Where provided, this callback is asked
- on a file-by-file basis, which files should be included
- in the list of file completions. For example, a callback
- is provided for listing only completions of executable
- files.
- cplmatch.c
- When listing completions, the length of the type suffix
- of each completion wasn't being taken into account
- correctly when computing the column widths. Thus the
- listing appeared ragged sometimes. This is now fixed.
- pathutil.c
- I added a function for prepending a string to a path,
- and another for testing whether a pathname referred to
- an executable file.
-
-28/01/2001 mcs@astro.caltech.edu
-
- libtecla.h cplmatch.c man/cpl_complete_word.3
- The use of a publically defined structure to configure
- the cpl_file_completions() callback was flawed, so a new
- approach has been designed, and the old method, albeit
- still supported, is no longer documented in the man
- pages. The definition of the CplFileArgs structure in
- libtecla.h is now accompanied by comments warning people
- not to modify it, since modifications could break
- applications linked to shared versions of the tecla
- library. The new method involves an opaque CplFileConf
- object, instances of which are returned by a provided
- constructor function, configured with provided accessor
- functions, and when no longer needed, deleted with a
- provided destructor function. This is documented in the
- cpl_complete_word man page. The cpl_file_completions()
- callback distinguishes what type of configuration
- structure it has been sent by virtue of a code placed at
- the beginning of the CplFileConf argument by its
- constructor.
-
-04/01/2001 mcs@astro.caltech.edu (Release of version 1.1j)
-
- getline.c
- I added upper-case bindings for the default meta-letter
- keysequences such as M-b. They thus continue to work
- when the user has caps-lock on.
- Makefile
- I re-implemented the "install" target in terms of new
- install_lib, install_inc and install_man targets. When
- distributing the library with other packages, these new
- targets allows for finer grained control of the
- installation process.
-
-30/12/2000 mcs@astro.caltech.edu
-
- getline.c man/gl_get_line.3
- I realized that the recall-history action that I
- implemented wasn't what Markus had asked me for. What he
- actually wanted was for down-history to continue going
- forwards through a previous history recall session if no
- history recall session had been started while entering
- the current line. I have thus removed the recall-history
- action and modified the down-history action function
- accordingly.
-
-24/12/2000 mcs@astro.caltech.edu
-
- getline.c
- I modified gl_get_line() to allow the previously returned
- line to be passed in the start_line argument.
- getline.c man/gl_get_line.3
- I added a recall-history action function, bound to M^P.
- This recalls the last recalled history line, regardless
- of whether it was from the current or previous line.
-
-13/12/2000 mcs@astro.caltech.edu (Release of version 1.1i)
-
- getline.c history.h history.c man/gl_get_line.3
- I implemented the equivalent of the ksh Operate action. I
- have named the tecla equivalent "repeat-history". This
- causes the line that is to be edited to returned, and
- arranges for the next most recent history line to be
- preloaded on the next call to gl_get_line(). Repeated
- invocations of this action thus result in successive
- history lines being repeated - hence the
- name. Implementing the ksh Operate action was suggested
- by Markus Gyger. In ksh it is bound to ^O, but since ^O
- is traditionally bound by the default terminal settings,
- to stop-output, I have bound the tecla equivalent to M-o.
-
-01/12/2000 mcs@astro.caltech.edu (Release of version 1.1h)
-
- getline.c keytab.c keytab.h man/gl_get_line.3
- I added a digit-argument action, to allow repeat
- counts for actions to be entered. As in both tcsh
- and readline, this is bound by default to each of
- M-0, M-1 through to M-9, the number being appended
- to the current repeat count. Once one of these has been
- pressed, the subsequent digits of the repeat count can be
- typed with or without the meta key pressed. It is also
- possible to bind digit-argument to other keys, with or
- without a numeric final keystroke. See man page for
- details.
-
- getline.c man/gl_get_line.3
- Markus noted that my choice of M-< for the default
- binding of read-from-file, could be confusing, since
- readline binds this to beginning-of-history. I have
- thus rebound it to ^X^F (ie. like find-file in emacs).
-
- getline.c history.c history.h man/gl_get_line.3
- I have now implemented equivalents of the readline
- beginning-of-history and end-of-history actions.
- These are bound to M-< and M-> respectively.
-
- history.c history.h
- I Moved the definition of the GlHistory type, and
- its subordinate types from history.h to history.c.
- There is no good reason for any other module to
- have access to the innards of this structure.
-
-27/11/2000 mcs@astro.caltech.edu (Release of version 1.1g)
-
- getline.c man/gl_get_line.3
- I added a "read-from-file" action function and bound it
- by default to M-<. This causes gl_get_line() to
- temporarily return input from the file who's name
- precedes the cursor.
-
-26/11/2000 mcs@astro.caltech.edu
-
- getline.c keytab.c keytab.h man/gl_get_line.3
- I have reworked some of the keybinding code again.
-
- Now, within key binding strings, in addition to the
- previously existing notation, you can now use M-a to
- denote meta-a, and C-a to denote control-a. For example,
- a key binding which triggers when the user presses the
- meta key, the control key and the letter [
- simultaneously, can now be denoted by M-C-[, or M-^[ or
- \EC-[ or \E^[.
-
- I also updated the man page to use M- instead of \E in
- the list of default bindings, since this looks cleaner.
-
- getline.c man/gl_get_line.3
- I added a copy-region-as-kill action function and
- gave it a default binding to M-w.
-
-22/11/2000 mcs@astro.caltech.edu
-
- *.c
- Markus Gyger sent me a copy of a previous version of
- the library, with const qualifiers added in appropriate
- places. I have done the same for the latest version.
- Among other things, this gets rid of the warnings
- that are generated if one tells the compiler to
- const qualify literal strings.
-
- getline.c getline.h glconf.c
- I have moved the contents of glconf.c and the declaration
- of the GetLine structure into getline.c. This is cleaner,
- since now only functions in getline.c can mess with the
- innards of GetLine objects. It also clears up some problems
- with system header inclusion order under Solaris, and also
- the possibility that this might result in inconsistent
- system macro definitions, which in turn could cause different
- declarations of the structure to be seen in different files.
-
- hash.c
- I wrote a wrapper function to go around strcmp(), such that
- when hash.c is compiled with a C++ compiler, the pointer
- to the wrapper function is a C++ function pointer.
- This makes it compatible with comparison function pointer
- recorded in the hash table.
-
- cplmatch.c getline.c libtecla.h
- Markus noted that the Sun C++ compiler wasn't able to
- match up the declaration of cpl_complete_word() in
- libtecla.h, where it is surrounded by a extern "C" {}
- wrapper, with the definition of this function in
- cplmatch.c. My suspicion is that the compiler looks not
- only at the function name, but also at the function
- arguments to see if two functions match, and that the
- match_fn() argument, being a fully blown function pointer
- declaration, got interpetted as that of a C function in
- one case, and a C++ function in the other, thus
- preventing a match.
-
- To fix this I now define a CplMatchFn typedef in libtecla.h,
- and use this to declare the match_fn callback.
-
-20/11/2000 (Changes suggested by Markus Gyger to support C++ compilers):
- expand.c
- Renamed a variable called "explicit" to "xplicit", to
- avoid conflicts when compiling with C++ compilers.
- *.c
- Added explicit casts when converting from (void *) to
- other pointer types. This isn't needed in C but it is
- in C++.
- getline.c
- tputs() has a strange declaration under Solaris. I was
- enabling this declaration when the SPARC feature-test
- macro was set. Markus changed the test to hinge on the
- __sun and __SVR4 macros.
- direader.c glconf.c stringrp.c
- I had omitted to include string.h in these two files.
-
- Markus also suggested some other changes, which are still
- under discussion. With the just above changes however, the
- library compiles without complaint using g++.
-
-19/11/2000 mcs@astro.caltech.edu
- getline.h getline.c keytab.c keytab.h glconf.c
- man/gl_get_line.3
- I added support for backslash escapes (include \e
- for the keyboard escape key) and literal binary
- characters to the characters allowed within key sequences
- of key bindings.
-
- getline.h getline.c keytab.c keytab.h glconf.c
- man/gl_get_line.3
- I introduced symbolic names for the arrow keys, and
- modified the library to use the cursor key sequences
- reported by terminfo/termcap in addition to the default
- ANSI ones. Anything bound to the symbolically named arrow
- keys also gets bound to the default and terminfo/termcap
- cursor key sequences. Note that under Solaris
- terminfo/termcap report the properties of hardware X
- terminals when TERM is xterm instead of the terminal
- emulator properties, and the cursor keys on these two
- systems generate different key sequences. This is an
- example of why extra default sequences are needed.
-
- getline.h getline.c keytab.c
- For some reason I was using \e to represent the escape
- character. This is supported by gcc, which thus doesn't
- emit a warning except with the -pedantic flag, but isn't
- part of standard C. I now use a macro to define escape
- as \033 in getline.h, and this is now used wherever the
- escape character is needed.
-
-17/11/2000 mcs@astro.caltech.edu (Release of version 1.1d)
-
- getline.c, man/gl_get_line(3), html/gl_get_line.html
- In tcsh ^D is bound to a function which does different
- things depending on where the cursor is within the input
- line. I have implemented its equivalent in the tecla
- library. When invoked at the end of the line this action
- function displays possible completions. When invoked on
- an empty line it causes gl_get_line() to return NULL,
- thus signalling end of input. When invoked within a line
- it invokes forward-delete-char, as before. The new action
- function is called del-char-or-list-or-eof.
-
- getline.c, man/gl_get_line(3), html/gl_get_line.html
- I found that the complete-word and expand-file actions
- had underscores in their names instead of hyphens. This
- made them different from all other action functions, so I
- have changed the underscores to hyphens.
-
- homedir.c
- On SCO UnixWare while getpwuid_r() is available, the
- associated _SC_GETPW_R_SIZE_MAX macro used by sysconf()
- to find out how big to make the buffer to pass to this
- function to cater for any password entry, doesn't
- exist. I also hadn't catered for the case where sysconf()
- reports that this limit is indeterminate. I have thus
- change the code to substitute a default limit of 1024 if
- either the above macro isn't defined or if sysconf() says
- that the associated limit is indeterminate.
-
-17/11/2000 mcs@astro.caltech.edu (Release of version 1.1c)
-
- getline.c, getline.h, history.c, history.h
- I have modified the way that the history recall functions
- operate, to make them better emulate the behavior of
- tcsh. Previously the history search bindings always
- searched for the prefix that preceded the cursor, then
- left the cursor at the same point in the line, so that a
- following search would search using the same prefix. This
- isn't how tcsh operates. On finding a matching line, tcsh
- puts the cursor at the end of the line, but arranges for
- the followup search to continue with the same prefix,
- unless the user does any cursor motion or character
- insertion operations in between, in which case it changes
- the search prefix to the new set of characters that are
- before the cursor. There are other complications as well,
- which I have attempted to emulate. As far as I can
- tell, the tecla history recall facilities now fully
- emulate those of tcsh.
-
-16/11/2000 mcs@astro.caltech.edu (Release of version 1.1b)
-
- demo.c:
- One can now quit from the demo by typing exit.
-
- keytab.c:
- The first entry of the table was getting deleted
- by _kt_clear_bindings() regardless of the source
- of the binding. This deleted the up-arrow binding.
- Symptoms noted by gazelle@yin.interaccess.com.
-
- getline.h:
- Depending on which system include files were include
- before the inclusion of getline.h, SIGWINCH and
- TIOCGWINSZ might or might not be defined. This resulted
- in different definitions of the GetLine object in
- different files, and thus some very strange bugs! I have
- now added #includes for the necessary system header files
- in getline.h itself. The symptom was that on creating a
- ~/.teclarc file, the demo program complained of a NULL
- argument to kt_set_keybinding() for the first line of the
- file.
-
-15/11/2000 mcs@astro.caltech.edu (Release of version 1.1a)
-
- demo.c:
- I had neglected to check the return value of
- new_GetLine() in the demo program. Oops.
-
- getline.c libtecla.h:
- I wrote gl_change_terminal(). This allows one to change to
- a different terminal or I/O stream, by specifying the
- stdio streams to use for input and output, along with the
- type of terminal that they are connected to.
-
- getline.c libtecla.h:
- Renamed GetLine::isterm to GetLine::is_term. Standard
- C reserves names that start with "is" followed by
- alphanumeric characters, so this avoids potential
- clashes in the future.
-
- keytab.c keytab.h
- Each key-sequence can now have different binding
- functions from different sources, with the user provided
- binding having the highest precedence, followed by the
- default binding, followed by any terminal specific
- binding. This allows gl_change_terminal() to redefine the
- terminal-specific bindings each time that
- gl_change_terminal() is called, without overwriting the
- user specified or default bindings. In the future, it will
- also allow for reconfiguration of user specified
- bindings after the call to new_GetLine(). Ie. deleting a
- user specified binding should reinstate any default or
- terminal specific binding.
-
- man/cpl_complete_word.3 html/cpl_complete_word.html
- man/ef_expand_file.3 html/ef_expand_file.html
- man/gl_get_line.3 html/gl_get_line.html
- I added sections on thread safety to the man pages of the
- individual modules.
-
- man/gl_get_line.3 html/gl_get_line.html
- I documented the new gl_change_terminal() function.
-
- man/gl_get_line.3 html/gl_get_line.html
- In the description of the ~/.teclarc configuration file,
- I had omitted the 'bind' command word in the example
- entry. I have now remedied this.
diff --git a/libtecla-1.4.1/INSTALL b/libtecla-1.4.1/INSTALL
deleted file mode 100644
index 1a1b036..0000000
--- a/libtecla-1.4.1/INSTALL
+++ /dev/null
@@ -1,168 +0,0 @@
-To compile and optionally install the library, it is first necessary
-to create a makefile for your system, by typing:
-
- ./configure
-
-The Makefile that this generates is designed to install the files of
-the library in subdirectories of /usr/local/. If you would prefer to
-install them under a different directory, you can type:
-
- ./configure --prefix /wherever
-
-Where you would replace /wherever with your chosen directory. Other
-command-line options are available, and can be listed by typing:
-
- ./configure --help
-
-Having run the configure script, you are then ready to make the
-library. To do this, just type:
-
- make
-
-What 'make' does depends on whether the configure script knows about
-your system. If the configure script doesn't know anything specific
-about your system, it will arrange for 'make' to produce the static
-tecla library, called libtecla.a, and if possible, the reentrant
-version of this called libtecla_r.a. If it does know about your
-system, it will also create shared libraries if possible. If you are
-on a system that isn't known, and you would like shared libraries to
-be compiled, please read the file called PORTING to see how this can
-be achieved.
-
-To install the library, its include file and it manual pages, type:
-
- make install
-
-Note that this will also compile the library if you haven't already
-done so.
-
-Having compiled the library, if you wish, you can test it by running
-the demo programs. After building the library, you should find two
-programs, called demo and demo2, in the current directory.
-
-The first of the demos programs reads input lines from the user, and
-writes what was typed back to the screen. While typing a line of
-input, you can experiment with line editing, tab completion, history
-recall etc.. For details about these line editing features, see the
-man page gl_get_line(3). If you haven't installed this yet, you can
-see it anyway by typing:
-
- nroff -man man3/gl_get_line.3 | more
-
-The second demo program, called demo2, demonstrates command-completion
-with the UNIX PATH. If you type in a partial command name, and press
-TAB, the command name will be completed if possible, and possible
-completions will be listed if it is ambiguous. When you then enter the
-line, the demo program then prints out the full pathname of the
-command that you typed. If you type anything after the command name,
-filename completion with the tab key reverts to its default behavior
-of completing filenames in the current directory.
-
-COMPILING IN A DIFFERENT DIRECTORY
-----------------------------------
-If you unpack the distribution in a directory which is visible from
-multiple hosts which have different architectures, you have the option
-of compiling the library for the different architectures in different
-directories. You might for example create a sub-directory for each
-architecture, under the top level directory of the distribution. You
-would then log in to a host of one of these architectures, cd to the
-sub-directory that you created for it, and type:
-
- ../configure
-
-The configure script then creates a makefile in the current directory
-which is designed to build the library, object files, demos etc for
-the architecture of the current host, in the current directory, using
-the original source code in ../. You then repeat this procedure on
-hosts of other architectures.
-
-The compilation directories don't have to be sub-directories of the
-top level directory of the distribution. That was just described as an
-example. They can be anywhere you like.
-
-Every rule in the makefiles that are generated by the configure
-script, cites the paths of the target and source files explicitly, so
-this procedure should work on any system, without the need for vpath
-makefile support.
-
-EMBEDDING IN OTHER PACKAGE DISTRIBUTIONS
-----------------------------------------
-
-If you distribute the library with another package, which has its own
-heirarchy and configuration procedures, the following installation
-options may be of interest to you. At first glance, the use of a GNU
-configure script by the tecla library, may appear to reduce your
-options for controlling what gets made, and where it gets installed,
-but this isn't the case, because many of the parameters configured by
-the configure script are assigned to make variables which can be
-overriden when you run make.
-
-For example, lets say that you have your own configuration script in
-the parent directory of the libtecla top-level directory. In your
-configuration script, you would first need to have the following line:
-
- (cd libtecla; ./configure)
-
-Now, from your makefile or whatever script you use to build your
-application, you would need to make the library. Assuming that your
-makefile or build script is in the parent directory of the libtecla
-distribution, the following line tells make to just make the
-non-reentrant, static version of the tecla library, and to install it
-and the tecla include file in sub-directories called lib and include
-in your current directory.
-
- (cd libtecla; make LIBDIR=../lib INCDIR=../include TARGETS=normal TARGET_LIBS="static" install_lib install_inc)
-
-First, the LIBDIR=../lib means that on installing the library, it
-should be placed in the directory libtecla/../lib. Similarly INCDIR
-tells make where to place the include files. The install_lib and
-install_inc targets tell make to install the libraries and the include
-file. Because the install_man and install_bin targets have been
-omitted in this example, the man pages and programs aren't installed.
-If you were to include these additional targets then you could use the
-MANDIR and BINDIR variables, respectively to control where they were
-installed.
-
-The TARGETS variable is used to specify which of the normal and
-reentrant versions of the library are compiled. This can contain one
-or both of the words "normal" and "reentrant". If you don't specify
-this when you invoke make, the default value generated by the
-configure script will be used. Depending on whether reentrant POSIX
-functions are available for compilation of the reentrant version, this
-will be either "normal" or "normal reentrant".
-
-The TARGET_LIBS variable is used to specify which of the static and
-shared libraries are to be built. This can contain one or both of the
-words "static" and "shared". If you don't specify this when you invoke
-make, the default value generated by the configure script will be
-used. Depending on whether the configure script knows how to create
-shared libraries on the target system, this will be either "static" or
-"static shared". Beware that shared libraries aren't supported on many
-systems, so requiring "shared" will limit which systems you can
-compile your package on. Also note that unless your package installs
-the tecla library in a directory which all users of your program will
-have access to, you should only compile the static version.
-Instructions for adding shared-library creation rules for new systems
-are included in the PORTING file.
-
-The OPT variable can be used to change the default optimization from
-the default of "-O" to something else.
-
-The DEMOS variable controls whether the demo programs are built.
-Normally this has the value "demos", which tells the makefile to build
-the demo programs. Setting it to an empty string stops the demos from
-being built.
-
-The PROGRAMS variable is used to specify which programs are to be
-built and subsequently installed. All available programs are built by
-default. Currently there is only one such program, selected by
-specifying the word "enhance". This program uses tecla-enhanced
-pseudo-terminals to layer command line editing on top of third party
-programs.
-
-The PROGRAMS_R variable serves the same purpose as the PROGRAMS
-variable, except that programs listed here are linked with the
-reentrant version of the library, and should be specified with a _r
-suffix. Currently this variable is empty by default.
-
-Martin Shepherd (mcs@astro.caltech.edu)
diff --git a/libtecla-1.4.1/LICENSE.TERMS b/libtecla-1.4.1/LICENSE.TERMS
deleted file mode 100644
index 275eef5..0000000
--- a/libtecla-1.4.1/LICENSE.TERMS
+++ /dev/null
@@ -1,28 +0,0 @@
-Copyright (c) 2000, 2001 by Martin C. Shepherd.
-
-All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, and/or sell copies of the Software, and to permit persons
-to whom the Software is furnished to do so, provided that the above
-copyright notice(s) and this permission notice appear in all copies of
-the Software and that both the above copyright notice(s) and this
-permission notice appear in supporting documentation.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
-INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
-FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder
-shall not be used in advertising or otherwise to promote the sale, use
-or other dealings in this Software without prior written authorization
-of the copyright holder.
diff --git a/libtecla-1.4.1/Makefile b/libtecla-1.4.1/Makefile
deleted file mode 100644
index 15116b5..0000000
--- a/libtecla-1.4.1/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-default:
- ./configure
- make
diff --git a/libtecla-1.4.1/Makefile.in b/libtecla-1.4.1/Makefile.in
deleted file mode 100644
index f691375..0000000
--- a/libtecla-1.4.1/Makefile.in
+++ /dev/null
@@ -1,225 +0,0 @@
-#-----------------------------------------------------------------------
-# This is the template that the libtecla configure script uses to create
-# the libtecla Makefile. It does this by replacing all instances of
-# @name@ with the value of the correspondingly named configuration
-# variable. You should find another file in the same directory as this
-# one, called "configure.in". The latter file contains extensive comments
-# explaining how this all works.
-#-----------------------------------------------------------------------
-
-# Where is the source code?
-
-srcdir = @srcdir@
-
-# Where do you want to install the library, its header file, and the man pages?
-
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-LIBDIR=@libdir@
-INCDIR=@includedir@
-MANDIR=@mandir@
-BINDIR=@bindir@
-
-# Which C compiler do you want to use?
-
-CC = @CC@
-
-# If 'make' doesn't define the MAKE variable, define it here.
-
-@SET_MAKE@
-
-# To use RANLIB set the RANLIB variable to ranlib. Otherwise set it to
-# :, which is the bourne shell do-nothing command.
-
-RANLIB = @RANLIB@
-
-# The following optional defines change the characteristics of the library.
-#
-# USE_TERMINFO
-# Use the terminfo terminal information database when looking up
-# terminal characteristics. Most modern UNIX and UNIX-like operating
-# systems support terminfo, so this define should normally be included.
-# If in doubt leave it in, and see if the library compiles.
-# USE_TERMCAP
-# If you don't have terminfo but do have the termcap database, replace
-# the -DUSE_TERMINFO with -DUSE_TERMCAP. If there is a termcap.h in
-# /usr/include/, also add -DHAVE_TERMCAP_H.
-#
-# If neither USE_TERMINFO nor USE_TERMCAP are included, ANSI VT100 control
-# sequences will be used to control all terminal types.
-#
-# For Solaris and Linux, use:
-#
-# DEFINES = -DUSE_TERMINFO
-#
-
-DEFINES = @DEFS@
-
-#
-# The following defines are used in addition to the above when compiling
-# the reentrant version of the library. Note that the definition of
-# _POSIX_C_SOURCE to request reentrant functions, has the unfortunate
-# side-effect on some systems of stopping the TIOCGWINSZ ioctl macro from
-# getting defined. This in turn stops the library from being
-# able to respond to terminal size changes. Under Solaris this can be
-# remedied by adding -D__EXTENSIONS__. On linux this isn't necessary.
-# If you don't get this right, the library will still work, but
-# it will get confused if the terminal size gets changed and you try to
-# edit a line that exceeds the terminal width.
-#
-# Thus on Solaris you should use:
-#
-# DEFINES_R = -D_POSIX_C_SOURCE=199506L -D__EXTENSIONS__
-#
-# and on linux you should use:
-#
-# DEFINES_R = -D_POSIX_C_SOURCE=199506L
-#
-
-DEFINES_R = -D_POSIX_C_SOURCE=199506L
-
-#
-# The compiler optimization flags. I like to keep this separate so
-# that I can set it to -g from the 'make' command line without having
-# to edit this file when debugging the library. If you aren't working
-# on modifying the library, leave this set to -O.
-#
-
-OPT = -O
-
-#
-# These are paranoid gcc warning flags to use when compiling new code.
-# Simply invoke make with WARNING_FLAGS='$(PEDANTIC_FLAGS)'.
-#
-PEDANTIC_FLAGS=-Wall -Wshadow -Wpointer-arith -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
-
-#
-# Specify any extra compiler warning options that you want to use.
-# Leave this blank unless you are porting the library to a new system,
-# or modifying the library.
-#
-
-WARNING_FLAGS=
-
-#
-# If you want to compile the demo program, specify any system
-# libraries that are needed for the terminal I/O functions.
-#
-# If you are using terminfo, you will probably only need -lcurses.
-# For termcap you may need -ltermcap or -ltermlib.
-#
-# For Solaris, use:
-#
-# LIBS = -lcurses
-#
-# For linux, use:
-#
-# LIBS = -lncurses
-#
-
-LIBS = @LIBS@
-
-#
-# List the default target libraries. This should be one or
-# both of the words "normal" and "reentrant".
-#
-TARGETS = @TARGETS@
-
-#
-# List which types of the above libraries are required.
-# This should be one or both of the words "static" and "shared".
-#
-TARGET_LIBS = @TARGET_LIBS@
-
-#
-# If you want the demo programs to be built, the following variable
-# should be assigned the single word: demos. If it isn't assigned
-# anything, the demo programs won't be built.
-#
-DEMOS = demos
-
-#
-# List the programs that are to be made by default.
-#
-PROGRAMS = enhance
-
-#
-# List programs for which reentrant versions are to be built by default.
-#
-PROGRAMS_R =
-
-#-----------------------------------------------------------------------
-# You shouldn't need to change anything below this line.
-#-----------------------------------------------------------------------
-
-CFLAGS = $(OPT) $(WARNING_FLAGS) $(DEFINES) @CFLAGS@ @SHARED_CFLAGS@
-
-default: $(TARGETS)
-
-normal:
- @$(MAKE) -f $(srcdir)/Makefile.rules TARGETS="$(TARGET_LIBS)" SUFFIX="" CFLAGS="$(CFLAGS)" CC="$(CC)" OBJDIR=normal_obj LINK_SHARED='@LINK_SHARED@' SHARED_EXT='@SHARED_EXT@' SHARED_ALT='@SHARED_ALT@' LIBS='$(LIBS)' srcdir='$(srcdir)' LIBDIR='$(LIBDIR)' LN_S='@LN_S@' DEMOS="$(DEMOS)" PROGRAMS='$(PROGRAMS)' RANLIB='$(RANLIB)'
-
-reentrant:
- @$(MAKE) -f $(srcdir)/Makefile.rules TARGETS="$(TARGET_LIBS)" SUFFIX="_r" CFLAGS="$(CFLAGS) $(DEFINES_R)" CC="$(CC)" OBJDIR=reentrant_obj LINK_SHARED='@LINK_SHARED@' SHARED_EXT='@SHARED_EXT@' SHARED_ALT='@SHARED_ALT@' LIBS='$(LIBS)' srcdir='$(srcdir)' LIBDIR='$(LIBDIR)' LN_S='@LN_S@' DEMOS="$(DEMOS)" PROGRAMS='$(PROGRAMS_R)' RANLIB='$(RANLIB)'
-
-demos: normal
-
-demos_r: reentrant
-
-clean:
- rm -rf *.o normal_obj reentrant_obj libtecla*.a demo demo2 demo_r demo2_r enhance *~ man3/*~ html/*~ compile_reentrant compile_normal
- @endings="@SHARED_EXT@ @SHARED_ALT@" ; \
- for alt in $$endings ; do \
- lib="libtecla*$$alt" ; \
- rm -f $$lib; echo rm -f $$lib ; \
- done
-
-distclean: clean
- rm -f config.cache config.status config.log Makefile libtecla.map.opt
- cp $(srcdir)/Makefile.stub Makefile
-
-install_lib: $(TARGETS) $(LIBDIR)
- @for lib in libtecla.a libtecla_r.a ; do \
- if [ -f $$lib ] ; then \
- cp $$lib $(LIBDIR)/ ; chmod ugo+r $(LIBDIR)/$$lib; \
- echo "cp $$lib $(LIBDIR)/ ; chmod ugo+r $(LIBDIR)/$$lib"; \
- fi ; \
- done
- @for lib in libtecla libtecla_r ; do \
- src="$$lib@SHARED_EXT@"; \
- if [ -f $$src ] ; then \
- dst="$(LIBDIR)/$$src"; \
- cp -f $$src $$dst; chmod a=rX $$dst; \
- echo "cp -f $$src $$dst ; chmod a=rX $$dst"; \
- endings="@SHARED_ALT@" ; \
- for alt in $$endings ; do \
- lnk="$$lib$$alt"; \
- (cd $(LIBDIR); rm -f $$lnk; @LN_S@ $$src $$lnk); \
- echo "(cd $(LIBDIR); rm -f $$lnk; @LN_S@ $$src $$lnk)"; \
- done ; \
- fi ; \
- done
-
-install_inc: $(INCDIR)
- @if [ -f $(srcdir)/libtecla.h ]; then \
- cp $(srcdir)/libtecla.h $(INCDIR)/ ; chmod ugo+r $(INCDIR)/libtecla.h; \
- echo "cp $(srcdir)/libtecla.h $(INCDIR)/ ; chmod ugo+r $(INCDIR)/libtecla.h"; \
- fi
-
-install_man: $(MANDIR) $(MANDIR)/man3
- cd $(srcdir)/man3 && for page in *.3; do cp $$page $(MANDIR)/man3; chmod ugo+r $(MANDIR)/man3/$$page; done
-
-install_bin: $(BINDIR) $(PROGRAMS) $(PROGRAMS_R)
- progs="$(PROGRAMS) $(PROGRAMS_R)"; \
- for prog in $$progs; do \
- cp $$prog $(BINDIR)/; \
- chmod ugo+rx $(BINDIR)/$$prog; \
- done
-
-install: install_lib install_inc install_man install_bin
-
-# Make any missing installation directories.
-
-$(MANDIR) $(MANDIR)/man3 $(LIBDIR) $(INCDIR) $(BINDIR):
- $(srcdir)/install-sh -d $@
- chmod ugo+rx $@
diff --git a/libtecla-1.4.1/Makefile.rules b/libtecla-1.4.1/Makefile.rules
deleted file mode 100644
index 6552057..0000000
--- a/libtecla-1.4.1/Makefile.rules
+++ /dev/null
@@ -1,142 +0,0 @@
-default: $(OBJDIR) $(TARGETS) $(DEMOS) $(PROGRAMS)
-
-#-----------------------------------------------------------------------
-# You shouldn't need to change anything in this file.
-#-----------------------------------------------------------------------
-
-# Create the directory in which the object files will be created.
-
-$(OBJDIR):
- mkdir $(OBJDIR)
-
-# Construct the compilation command.
-
-COMPILE = $(CC) -c $(CFLAGS) -o $@
-
-LIB_OBJECTS = $(OBJDIR)/getline.o $(OBJDIR)/keytab.o $(OBJDIR)/freelist.o \
- $(OBJDIR)/strngmem.o $(OBJDIR)/hash.o $(OBJDIR)/history.o \
- $(OBJDIR)/direader.o $(OBJDIR)/homedir.o $(OBJDIR)/pathutil.o \
- $(OBJDIR)/expand.o $(OBJDIR)/stringrp.o $(OBJDIR)/cplfile.o \
- $(OBJDIR)/cplmatch.o $(OBJDIR)/pcache.o $(OBJDIR)/version.o
-
-# List all of the programs that this makefile can build.
-
-PROGS = demo$(SUFFIX) demo2$(SUFFIX) enhance$(SUFFIX)
-
-static: libtecla$(SUFFIX).a
-
-libtecla$(SUFFIX).a: $(LIB_OBJECTS)
- ar -ru $@ $(LIB_OBJECTS); \
- $(RANLIB) $@; \
- rm -f $(PROGS)
-
-shared: libtecla$(SUFFIX)$(SHARED_EXT)
-
-libtecla$(SUFFIX)$(SHARED_EXT): $(LIB_OBJECTS) $(srcdir)/libtecla.map \
- libtecla.map.opt
- $(LINK_SHARED)
- @endings="$(SHARED_ALT)" ; \
- for alt in $$endings ; do \
- lnk="libtecla$(SUFFIX)$$alt"; \
- echo "rm -f $$lnk; $(LN_S) $@ $$lnk"; \
- rm -f $$lnk; $(LN_S) $@ $$lnk; \
- done; \
- rm -f $(PROGS)
-
-libtecla.map.opt: $(srcdir)/libtecla.map
- sed -n 's/^[ ]*\([_a-zA-Z0-9]*\)[ ]*;.*/+e \1/p' $? >$@
-
-demos: demo$(SUFFIX) demo2$(SUFFIX)
-
-demo$(SUFFIX): $(OBJDIR)/demo.o
- LD_RUN_PATH="$(LIBDIR):$$LD_RUN_PATH:`pwd`" $(CC) $(CFLAGS) -o $@ \
- $(OBJDIR)/demo.o -L. -ltecla$(SUFFIX) $(LIBS)
-
-demo2$(SUFFIX): $(OBJDIR)/demo2.o
- LD_RUN_PATH="$(LIBDIR):$$LD_RUN_PATH:`pwd`" $(CC) $(CFLAGS) -o $@ \
- $(OBJDIR)/demo2.o -L. -ltecla$(SUFFIX) $(LIBS)
-
-enhance$(SUFFIX): $(OBJDIR)/enhance.o
- LD_RUN_PATH="$(LIBDIR):$$LD_RUN_PATH:`pwd`" $(CC) $(CFLAGS) -o $@ \
- $(OBJDIR)/enhance.o -L. -ltecla$(SUFFIX) $(LIBS)
-
-#-----------------------------------------------------------------------
-# Object file dependencies.
-#-----------------------------------------------------------------------
-
-$(OBJDIR)/getline.o: $(srcdir)/getline.c $(srcdir)/pathutil.h \
- $(srcdir)/libtecla.h $(OBJDIR)/keytab.h $(srcdir)/history.h \
- $(srcdir)/freelist.h $(srcdir)/stringrp.h $(srcdir)/getline.h
- $(COMPILE) $(srcdir)/getline.c
-
-$(OBJDIR)/keytab.o: $(srcdir)/keytab.c $(OBJDIR)/keytab.h \
- $(srcdir)/strngmem.h $(srcdir)/getline.h
- $(COMPILE) $(srcdir)/keytab.c
-
-$(OBJDIR)/strngmem.o: $(srcdir)/strngmem.c $(srcdir)/strngmem.h \
- $(srcdir)/freelist.h
- $(COMPILE) $(srcdir)/strngmem.c
-
-$(OBJDIR)/freelist.o: $(srcdir)/freelist.c $(srcdir)/freelist.h
- $(COMPILE) $(srcdir)/freelist.c
-
-$(OBJDIR)/hash.o: $(srcdir)/hash.c $(srcdir)/hash.h $(srcdir)/strngmem.h \
- $(srcdir)/freelist.h
- $(COMPILE) $(srcdir)/hash.c
-
-$(OBJDIR)/history.o: $(srcdir)/history.c $(srcdir)/history.h \
- $(srcdir)/freelist.h
- $(COMPILE) $(srcdir)/history.c
-
-$(OBJDIR)/expand.o: $(srcdir)/expand.c $(srcdir)/freelist.h \
- $(srcdir)/direader.h $(srcdir)/pathutil.h $(srcdir)/homedir.h \
- $(srcdir)/stringrp.h $(srcdir)/libtecla.h
- $(COMPILE) $(srcdir)/expand.c
-
-$(OBJDIR)/direader.o: $(srcdir)/direader.c $(srcdir)/direader.h
- $(COMPILE) $(srcdir)/direader.c
-
-$(OBJDIR)/homedir.o: $(srcdir)/homedir.c $(srcdir)/pathutil.h \
- $(srcdir)/homedir.h
- $(COMPILE) $(srcdir)/homedir.c
-
-$(OBJDIR)/pathutil.o: $(srcdir)/pathutil.c $(srcdir)/pathutil.h
- $(COMPILE) $(srcdir)/pathutil.c
-
-$(OBJDIR)/stringrp.o: $(srcdir)/stringrp.c $(srcdir)/freelist.h \
- $(srcdir)/stringrp.h
- $(COMPILE) $(srcdir)/stringrp.c
-
-$(OBJDIR)/cplfile.o: $(srcdir)/cplfile.c $(srcdir)/libtecla.h \
- $(srcdir)/direader.h $(srcdir)/homedir.h $(srcdir)/pathutil.h \
- $(srcdir)/cplfile.h
- $(COMPILE) $(srcdir)/cplfile.c
-
-$(OBJDIR)/cplmatch.o: $(srcdir)/cplmatch.c $(srcdir)/libtecla.h \
- $(srcdir)/stringrp.h $(srcdir)/pathutil.h $(srcdir)/cplfile.h
- $(COMPILE) $(srcdir)/cplmatch.c
-
-$(OBJDIR)/pcache.o: $(srcdir)/pcache.c $(srcdir)/libtecla.h \
- $(srcdir)/pathutil.h $(srcdir)/homedir.h $(srcdir)/freelist.h \
- $(srcdir)/direader.h $(srcdir)/stringrp.h
- $(COMPILE) $(srcdir)/pcache.c
-
-$(OBJDIR)/demo.o: $(srcdir)/demo.c $(srcdir)/libtecla.h
- $(COMPILE) $(srcdir)/demo.c
-
-$(OBJDIR)/demo2.o: $(srcdir)/demo2.c $(srcdir)/libtecla.h
- $(COMPILE) $(srcdir)/demo2.c
-
-$(OBJDIR)/version.o: $(srcdir)/version.c $(srcdir)/libtecla.h
- $(COMPILE) $(srcdir)/version.c
-
-$(OBJDIR)/enhance.o: $(srcdir)/enhance.c $(srcdir)/libtecla.h
- $(COMPILE) $(srcdir)/enhance.c
-
-#-----------------------------------------------------------------------
-# Include file dependencies.
-#-----------------------------------------------------------------------
-
-$(OBJDIR)/keytab.h: $(srcdir)/keytab.h $(srcdir)/libtecla.h \
- $(srcdir)/hash.h $(srcdir)/strngmem.h
- cp $(srcdir)/keytab.h $@
diff --git a/libtecla-1.4.1/Makefile.stub b/libtecla-1.4.1/Makefile.stub
deleted file mode 100644
index 15116b5..0000000
--- a/libtecla-1.4.1/Makefile.stub
+++ /dev/null
@@ -1,3 +0,0 @@
-default:
- ./configure
- make
diff --git a/libtecla-1.4.1/PORTING b/libtecla-1.4.1/PORTING
deleted file mode 100644
index db39818..0000000
--- a/libtecla-1.4.1/PORTING
+++ /dev/null
@@ -1,38 +0,0 @@
-The Tecla library was written with portability in mind, so no
-modifications to the source code should be needed on UNIX or LINUX
-platforms. The default compilation and linking arrangements should
-also work unchanged on these systems, but if no specific configuration
-has been provided for your system, shared libraries won't be compiled.
-Configuring these requires modifications to be made to the file:
-
- configure.in
-
-This file is heavily commented (comments start with the word dnl) and
-is relatively simple, so the instructions and suggestions that you
-find in this file should be sufficient to help you figure out how to
-add a configuration for your system. This file is an input file to the
-GNU autoconf program, which uses it as a template for generating the
-distributed configure script. If autoconf is installed on your system,
-creating a new configure script is a simple matter of typing.
-
- autoconf
-
-To avoid confusion with the leftovers of the previous configuration,
-you should then do the following:
-
- rm -f config.cache
- ./configure
- make clean
- ./configure
- make
-
-The first ./configure creates a new makefile for your system, allowing
-you to type 'make clean' to discard any files that were compiled with
-the previous configuration. Since 'make clean' also deletes the new
-makefile, a second invokation of the configure script is then
-performed to re-create the makefile. The final make then creates the
-tecla library from scratch.
-
-Once you have confirmed that the new configuration works, please send
-the modified "configure.in" template to mcs@astro.caltech.edu, so that
-your changes can be included in subsequent releases.
diff --git a/libtecla-1.4.1/README b/libtecla-1.4.1/README
deleted file mode 100644
index 894819d..0000000
--- a/libtecla-1.4.1/README
+++ /dev/null
@@ -1,53 +0,0 @@
-This is version 1.4.1 of the tecla command-line editing library.
-
-For the current official release, please direct your browser to:
-
- http://www.astro.caltech.edu/~mcs/tecla/index.html
-
-The tecla library provides UNIX and LINUX programs with interactive
-command line editing facilities, similar to those of the unix tcsh
-shell. In addition to simple command-line editing, it supports recall
-of previously entered command lines, TAB completion of file names, and
-in-line wild-card expansion of filenames. The internal functions
-which perform file-name completion and wild-card expansion are also
-available externally for optional use by programs, along with a module
-for tab-completion and lookup of filenames in a list of directories.
-
-Note that special care has been taken to allow the use of this library
-in threaded programs. The option to enable this is discussed in the
-Makefile, and specific discussions of thread safety are presented in
-the included man pages.
-
-For instructions on how to compile and install the library, please see
-the INSTALL file, which should be in the same directory as this file.
-
-Copyright and Disclaimer
-------------------------
-Copyright (c) 2000, 2001 by Martin C. Shepherd.
-
-All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, and/or sell copies of the Software, and to permit persons
-to whom the Software is furnished to do so, provided that the above
-copyright notice(s) and this permission notice appear in all copies of
-the Software and that both the above copyright notice(s) and this
-permission notice appear in supporting documentation.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
-INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
-FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
-NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
-WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder
-shall not be used in advertising or otherwise to promote the sale, use
-or other dealings in this Software without prior written authorization
-of the copyright holder.
diff --git a/libtecla-1.4.1/RELEASE.NOTES b/libtecla-1.4.1/RELEASE.NOTES
deleted file mode 100644
index 1b18a4a..0000000
--- a/libtecla-1.4.1/RELEASE.NOTES
+++ /dev/null
@@ -1,357 +0,0 @@
-This file lists major changes which accompany each new release.
-
-Version 1.4.1:
-
- This is a maintenance release. It includes minor changes to support
- Mac OS X (Darwin), the QNX real-time operating system, and Cygwin
- under Windows. It also fixes an oversight that was preventing the
- tab key from inserting tab characters when users unbound the
- complete-word action from it.
-
-Version 1.4.0:
-
- The contents of the history list can now be saved and restored with
- the new gl_save_history() and gl_load_history() functions.
-
- Event handlers can now be registered to watch for and respond to I/O
- on arbitrary file descriptors while gl_get_line() is waiting for
- terminal input from the user. See the gl_get_line(3) man page
- for details on gl_watch_fd().
-
- As an optional alternative to getting configuration information only
- from ~/.teclarc, the new gl_configure_getline() function allows
- configuration commands to be taken from any of, a string, a
- specified application-specific file, and/or a specified
- user-specific file. See the gl_get_line(3) man page for details.
-
- The version number of the library can now be queried using the
- libtecla_version() function. See the libtecla(3) man page.
-
- The new gl_group_history() function allows applications to group
- different types of input line in the history buffer, and arrange for
- only members of the appropriate group to be recalled on a given call
- to gl_get_line(). See the gl_get_line(3) man page.
-
- The new gl_show_history() function displays the current history list
- to a given stdio output stream. See the gl_get_line(3) man page.
-
- new_GetLine() now allows you to specify a history buffer size of
- zero, thus requesting that no history buffer be allocated. You can
- subsequently resize or delete the history buffer at any time, by
- calling gl_resize_history(), limit the number of lines that are
- allowed in the buffer by calling gl_limit_history(), clear either
- all history lines from the history list, or just the history lines
- that are associated with the current history group, by calling
- gl_clear_history, and toggle the history mechanism on and off by
- calling gl_toggle_history().
-
- The new gl_terminal_size() function can be used to query the
- current terminal size. It can also be used to supply a default
- terminal size on systems where no mechanism is available for
- looking up the size.
-
- The contents and configuration of the history list can now be
- obtained by the calling application, by calling the new
- gl_lookup_history(), gl_state_of_history(), gl_range_of_history()
- and gl_size_of_history() functions. See the gl_get_line(3) man page.
-
- Echoing of the input line as it is typed, can now be turned on and
- off via the new gl_echo_mode() function. While echoing is disabled,
- newly entered input lines are omitted from the history list. See
- the gl_get_line(3) man page.
-
- While the default remains to display the prompt string literally,
- the new gl_prompt_style() function can be used to enable text
- attribute formatting directives in prompt strings, such as
- underlining, bold font, and highlighting directives.
-
- Signal handling in gl_get_line() is now customizable. The default
- signal handling behavior remains essentially the same, except that
- the SIGTSTP, SIGTTIN and SIGTTOU are now forwarded to the
- corresponding signal handler of the calling program, instead of
- causing a SIGSTOP to be sent to the application. It is now possible
- to remove signals from the list that are trapped by gl_get_line(),
- as well as add new signals to this list. The signal and terminal
- environments in which the signal handler of the calling program is
- invoked, and what gl_get_line() does after the signal handler
- returns, is now customizable on a per signal basis. You can now also
- query the last signal that was caught by gl_get_line(). This is
- useful when gl_get_line() aborts with errno=EINTR, and you need to
- know which signal caused it to abort.
-
- Key-sequences bound to action functions can now start with printable
- characters. Previously only keysequences starting with control or
- meta characters were permitted.
-
- gl_get_line() is now 8-bit clean. If the calling program has
- correctly called setlocale(LC_CTYPE,""), then the user can select an
- alternate locale by setting the standard LC_CTYPE, LC_ALL, or LANG
- environment variables, and international characters can then be
- entered directly, either by using a non-US keyboard, or by using a
- compose key on a standard US keyboard. Note that in locales in which
- meta characters become printable, meta characters no longer match
- M-c bindings, which then have to be entered using their escape-c
- equivalents. Fortunately most modern terminal emulators either
- output the escape-c version by default when the meta key is used, or
- can be configured to do so (see the gl_get_line(3) man page), so in
- most cases you can continue to use the meta key.
-
- Completion callback functions can now tell gl_get_line() to return
- the input line immediately after a successful tab completion, simply
- by setting the last character of the optional continuation suffix to
- a newline character (ie. in the call to cpl_add_completion()).
-
- It is now safe to create and use multiple GetLine objects, albeit
- still only from a single thread. In conjunction with the new
- gl_configure_getline() function, this optionally allows multiple
- GetLine objects with different bindings to be used to implement
- different input modes.
-
- The edit-mode configuration command now accepts the argument,
- none. This tells gl_get_line() to revert to using just the native
- line editing facilities provided by the terminal driver. This could
- be used if the termcap or terminfo entry of the host terminal were
- badly corrupted.
-
- Application callback functions invoked by gl_get_line() can now
- change the displayed prompt using the gl_replace_prompt() function.
-
- Their is now an optional program distributed with the library. This
- is a beta release of a program which adds tecla command-line editing
- to virtually any third party application without the application
- needing to be linked to the library. See the enhance(3) man page for
- further details. Although built and installed by default, the
- INSTALL document explains how to prevent this.
-
- The INSTALL document now explains how you can stop the demo programs
- from being built and installed.
-
- NetBSD/termcap fixes. Mike MacFaden reported two problems that he
- saw when compiling libtecla under NetBSD. Both cases were related to
- the use of termcap. Most systems use terminfo, so this problem has
- gone unnoticed until now, and won't have affected the grand majority
- of users. The configure script had a bug which prevented the check
- for CPP working properly, and getline.c wouldn't compile due to an
- undeclared variable when USE_TERMCAP was defined. Both problems have
- now been fixed. Note that if you successfully compiled version
- 1.3.3, this problem didn't affect you.
-
- An unfortunate and undocumented binding of the key-sequence M-O was
- shadowing the arrow-key bindings on systems that use ^[OA etc. I
- have removed this binding (the documented lower case M-o binding
- remains bound). Under the KDE konsole terminal this was causing the
- arrow keys to do something other than expected.
-
- There was a bug in the history list code which could result in
- strange entries appearing at the start of the history list once
- enough history lines had been added to the list to cause the
- circular history buffer to wrap. This is now fixed.
-
-Version 1.3.3:
-
- Signal handling has been re-written, and documentation of its
- behaviour has been added to the gl_get_line(3) man page. In addition
- to eliminating race conditions, and appropriately setting errno for
- those signals that abort gl_get_line(), many more signals are now
- intercepted, making it less likely that the terminal will be left in
- raw mode by a signal that isn't trapped by gl_get_line().
-
- A bug was also fixed that was leaving the terminal in raw mode if
- the editing mode was changed interactively between vi and emacs.
- This was only noticeable when running programs from old shells that
- don't reset terminal modes.
-
-Version 1.3.2:
-
- Tim Eliseo contributed a number of improvements to vi mode,
- including a fuller set of vi key-bindings, implementation of the vi
- constraint that the cursor can't backup past the point at which
- input mode was entered, and restoration of overwritten characters
- when backspacing in overwrite mode. There are also now new bindings
- to allow users to toggle between vi and emacs modes interactively.
- The terminal bell is now used in some circumstances, such as when an
- unrecognized key sequence is entered. This can be turned off by the
- new nobeep option in the tecla configuration file.
-
- Unrelated to the above, a problem under Linux which prevented ^Q
- from being used to resume terminal output after the user had pressed
- ^S, has been fixed.
-
-Version 1.3.1:
-
- In vi mode a bug was preventing the history-search-backward and
- history-search-forward actions from doing anything when invoked on
- empty lines. On empty lines they now act like up-history and
- down-history respectively, as in emacs mode.
-
- When creating shared libraries under Linux, the -soname directive
- was being used incorrectly. The result is that Linux binaries linked
- with the 1.2.3, 1.2.4 and 1.3.0 versions of the tecla shared
- libraries, will refuse to see other versions of the shared library
- until relinked with version 1.3.1 or higher.
-
- The configure script can now handle the fact that under Solaris-2.6
- and earlier, the only curses library is a static one that hides in
- /usr/ccs/lib. Under Linux it now also caters for old versions of GNU
- ld which don't accept version scripts.
-
- The demos are now linked against the shared version of the library
- if possible. Previously they were always linked with the static
- version.
-
-Version 1.3.0:
-
- The major change in this release is the addition of an optional vi
- command-line editing mode in gl_get_line(), along with lots of new
- action functions to support its bindings. To enable this, first
- create a ~/.teclarc file if you don't already have one, then add the
- following line to it.
-
- edit-mode vi
-
- The default vi bindings, which are designed to mimic those of the vi
- editor as closely as possible, are described in the gl_get_line(3)
- man page.
-
- A new convenience function called ef_list_expansions() has been
- added for listing filename expansions. See the ef_list_expansions(3)
- man page for details. This is used in a new list-glob binding, bound
- to ^Xg in emacs mode, and ^G in vi input mode.
-
- A bug has been fixed in the key-binding table expansion code. This
- bug would have caused problems to anybody who defined more than
- about 18 personalized key-bindings in their ~/.teclarc file.
-
-Version 1.2.4:
-
- Buffered I/O is now used for writing to terminals, and where
- supported, cursor motion is done with move-n-positions terminfo
- capabilities instead of doing lots of move-1-position requests. This
- greatly improves how the library feels over slow links.
-
- You can now optionally compile different architectures in different
- directories, without having to make multiple copies of the
- distribution. This is documented in the INSTALL file.
-
- The ksh ~+ directive is now supported.
-
- Thanks to Markus Gyger for the above improvements.
-
- Documentation has been added to the INSTALL file describing features
- designed to facilitate configuration and installation of the library
- as part of larger packages. These features are intended to remove
- the need to modify the tecla distribution's configuration and build
- procedures when embedding the libtecla distribution in other package
- distributions.
-
- A previous fix to stop the cursor from warping when the last
- character of the input line was in the last column of the terminal,
- was only being used for the first terminal line of the input line.
- It is now used for all subsequent lines as well, as originally
- intended.
-
-Version 1.2.3:
-
- The installation procedure has been better automated with the
- addition of an autoconf configure script. This means that installers
- can now compile and install the library by typing:
-
- ./configure
- make
- make install
-
- On all systems this makes at least the normal static version of the
- tecla library. It also makes the reentrant version if reentrant
- POSIX functions are detected. Under Solaris, Linux and HP-UX the
- configuration script arranges for shared libraries to be compiled in
- addition to the static libraries. It is hoped that installers will
- return information about how to compile shared libraries on other
- systems, for inclusion in future releases, and to this end, a new
- PORTING guide has been provided.
-
- The versioning number scheme has been changed. This release would
- have been 1.2c, but instead will be refered to as 1.2.3. The
- versioning scheme, based on conventions used by Sun Microsystems, is
- described in configure.in.
-
- The library was also tested under HP-UX, and this revealed two
- serious bugs, both of which have now been fixed.
-
- The first bug prevented the library from writing control codes to
- terminals on big-endian machines, with the exception of those
- running under Solaris. This was due to an int variable being used
- where a char was needed.
-
- The second bug had the symptom that on systems that don't use the
- newline character as the control code for moving the cursor down a
- line, a newline wasn't started when the user hit enter.
-
-Version 1.2b:
-
- Two more minor bug fixes:
-
- Many terminals don't wrap the cursor to the next line when a
- character is written to the rightmost terminal column. Instead, they
- delay starting a new line until one more character is written, at
- which point they move the cursor two positions. gl_get_line()
- wasn't aware of this, so cursor repositionings just after writing
- the last character of a column, caused it to erroneously go up a
- line. This has now been remedied, using a method that should work
- regardless of whether a terminal exhibits this behavior or not.
-
- Some systems dynamically record the current terminal dimensions in
- environment variables called LINES and COLUMNS. On such systems,
- during the initial terminal setup, these values should override the
- static values read from the terminal information databases, and now
- do. Previously they were only used if the dimensions returned by
- terminfo/termcap looked bogus.
-
-Version 1.2a:
-
- This minor release fixes the following two bugs:
-
- The initial terminal size and subsequent changes thereto, weren't
- being noticed by gl_get_line(). This was because the test for the
- existence of TIOCWINSZ was erroneously placed before the inclusion
- of termios.h. One of the results was that on input lines that
- spanned more than one terminal line, the cursor occasionally jumped
- unexpectedly to the previous terminal line.
-
- On entering a line that wrapped over multiple terminal lines,
- gl_get_line() simply output a carriage-return line-feed at the point
- at which the user pressed return. Thus if one typed in such a line,
- then moved back onto one of the earlier terminal lines before
- hitting return, the cursor was left on a line containing part of the
- line that had just been entered. This didn't do any harm, but it
- looked a mess.
-
-Version 1.2:
-
- A new facility for looking up and completing filenames in UNIX-style
- paths has now been added (eg. you can search for, or complete
- commands using the UNIX PATH environment variable). See the
- pca_lookup_file(3) man page.
-
- The already existing filename completion callback can now be made
- selective in what types of files it lists. See the
- cpl_complete_word(3) man page.
-
- Due to its potential to break applications when changed, the use of
- the publically defined CplFileArgs structure to configure the
- cpl_file_completions() callback is now deprecated. The definition
- of this structure has been frozen, and its documentation has been
- removed from the man pages. It will remain supported, but if you
- have used it, you are recommended to switch to the new method, which
- involves a new opaque configuration object, allocated via a provided
- constructor function, configured via accessor functions, and
- eventually deleted with a provided destructor function. The
- cpl_file_completions() callback distinguishes which structure type
- it has been sent by virtue of a code placed at the start of the new
- structure by the constructor. It is assumed that no existing
- applications set the boolean 'escaped' member of the CplFileArgs
- structure to 4568. The new method is documented in the
- cpl_complete_word(3) man page.
-
-Version 1.1j
-
- This was the initial public release on freshmeat.org.
diff --git a/libtecla-1.4.1/config.guess b/libtecla-1.4.1/config.guess
deleted file mode 100644
index 0ce538b..0000000
--- a/libtecla-1.4.1/config.guess
+++ /dev/null
@@ -1,1183 +0,0 @@
-#! /bin/sh
-# Attempt to guess a canonical system name.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
-# Free Software Foundation, Inc.
-#
-# This file is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Written by Per Bothner .
-# Please send patches to .
-#
-# This script attempts to guess a canonical system name similar to
-# config.sub. If it succeeds, it prints the system name on stdout, and
-# exits with 0. Otherwise, it exits with 1.
-#
-# The plan is that this can be called by configure scripts if you
-# don't specify an explicit system type (host/target name).
-#
-# Only a few systems have been added to this list; please add others
-# (but try to keep the structure clean).
-#
-
-# Use $HOST_CC if defined. $CC may point to a cross-compiler
-if test x"$CC_FOR_BUILD" = x; then
- if test x"$HOST_CC" != x; then
- CC_FOR_BUILD="$HOST_CC"
- else
- if test x"$CC" != x; then
- CC_FOR_BUILD="$CC"
- else
- CC_FOR_BUILD=cc
- fi
- fi
-fi
-
-
-# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
-# (ghazi@noc.rutgers.edu 8/24/94.)
-if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
- PATH=$PATH:/.attbin ; export PATH
-fi
-
-UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
-UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
-UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
-UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
-
-dummy=dummy-$$
-trap 'rm -f $dummy.c $dummy.o $dummy; exit 1' 1 2 15
-
-# Note: order is significant - the case branches are not exclusive.
-
-case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in
- *:NetBSD:*:*)
- # Netbsd (nbsd) targets should (where applicable) match one or
- # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
- # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
- # switched to ELF, *-*-netbsd* would select the old
- # object file format. This provides both forward
- # compatibility and a consistent mechanism for selecting the
- # object file format.
- # Determine the machine/vendor (is the vendor relevant).
- case "${UNAME_MACHINE}" in
- amiga) machine=m68k-cbm ;;
- arm32) machine=arm-unknown ;;
- atari*) machine=m68k-atari ;;
- sun3*) machine=m68k-sun ;;
- mac68k) machine=m68k-apple ;;
- macppc) machine=powerpc-apple ;;
- hp3[0-9][05]) machine=m68k-hp ;;
- ibmrt|romp-ibm) machine=romp-ibm ;;
- *) machine=${UNAME_MACHINE}-unknown ;;
- esac
- # The Operating System including object format.
- if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
- | grep __ELF__ >/dev/null
- then
- # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
- # Return netbsd for either. FIX?
- os=netbsd
- else
- os=netbsdelf
- fi
- # The OS release
- release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
- # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
- # contains redundant information, the shorter form:
- # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
- echo "${machine}-${os}${release}"
- exit 0 ;;
- alpha:OSF1:*:*)
- if test $UNAME_RELEASE = "V4.0"; then
- UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
- fi
- # A Vn.n version is a released version.
- # A Tn.n version is a released field test version.
- # A Xn.n version is an unreleased experimental baselevel.
- # 1.2 uses "1.2" for uname -r.
- cat <$dummy.s
- .data
-\$Lformat:
- .byte 37,100,45,37,120,10,0 # "%d-%x\n"
-
- .text
- .globl main
- .align 4
- .ent main
-main:
- .frame \$30,16,\$26,0
- ldgp \$29,0(\$27)
- .prologue 1
- .long 0x47e03d80 # implver \$0
- lda \$2,-1
- .long 0x47e20c21 # amask \$2,\$1
- lda \$16,\$Lformat
- mov \$0,\$17
- not \$1,\$18
- jsr \$26,printf
- ldgp \$29,0(\$26)
- mov 0,\$16
- jsr \$26,exit
- .end main
-EOF
- $CC_FOR_BUILD $dummy.s -o $dummy 2>/dev/null
- if test "$?" = 0 ; then
- case `./$dummy` in
- 0-0)
- UNAME_MACHINE="alpha"
- ;;
- 1-0)
- UNAME_MACHINE="alphaev5"
- ;;
- 1-1)
- UNAME_MACHINE="alphaev56"
- ;;
- 1-101)
- UNAME_MACHINE="alphapca56"
- ;;
- 2-303)
- UNAME_MACHINE="alphaev6"
- ;;
- 2-307)
- UNAME_MACHINE="alphaev67"
- ;;
- esac
- fi
- rm -f $dummy.s $dummy
- echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[VTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
- exit 0 ;;
- Alpha\ *:Windows_NT*:*)
- # How do we know it's Interix rather than the generic POSIX subsystem?
- # Should we change UNAME_MACHINE based on the output of uname instead
- # of the specific Alpha model?
- echo alpha-pc-interix
- exit 0 ;;
- 21064:Windows_NT:50:3)
- echo alpha-dec-winnt3.5
- exit 0 ;;
- Amiga*:UNIX_System_V:4.0:*)
- echo m68k-cbm-sysv4
- exit 0;;
- amiga:OpenBSD:*:*)
- echo m68k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- *:[Aa]miga[Oo][Ss]:*:*)
- echo ${UNAME_MACHINE}-unknown-amigaos
- exit 0 ;;
- arc64:OpenBSD:*:*)
- echo mips64el-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- arc:OpenBSD:*:*)
- echo mipsel-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- hkmips:OpenBSD:*:*)
- echo mips-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- pmax:OpenBSD:*:*)
- echo mipsel-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- sgi:OpenBSD:*:*)
- echo mips-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- wgrisc:OpenBSD:*:*)
- echo mipsel-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- *:OS/390:*:*)
- echo i370-ibm-openedition
- exit 0 ;;
- arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
- echo arm-acorn-riscix${UNAME_RELEASE}
- exit 0;;
- SR2?01:HI-UX/MPP:*:*)
- echo hppa1.1-hitachi-hiuxmpp
- exit 0;;
- Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
- # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
- if test "`(/bin/universe) 2>/dev/null`" = att ; then
- echo pyramid-pyramid-sysv3
- else
- echo pyramid-pyramid-bsd
- fi
- exit 0 ;;
- NILE*:*:*:dcosx)
- echo pyramid-pyramid-svr4
- exit 0 ;;
- sun4H:SunOS:5.*:*)
- echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit 0 ;;
- sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
- echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit 0 ;;
- i86pc:SunOS:5.*:*)
- echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit 0 ;;
- sun4*:SunOS:6*:*)
- # According to config.sub, this is the proper way to canonicalize
- # SunOS6. Hard to guess exactly what SunOS6 will be like, but
- # it's likely to be more like Solaris than SunOS4.
- echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit 0 ;;
- sun4*:SunOS:*:*)
- case "`/usr/bin/arch -k`" in
- Series*|S4*)
- UNAME_RELEASE=`uname -v`
- ;;
- esac
- # Japanese Language versions have a version number like `4.1.3-JL'.
- echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'`
- exit 0 ;;
- sun3*:SunOS:*:*)
- echo m68k-sun-sunos${UNAME_RELEASE}
- exit 0 ;;
- sun*:*:4.2BSD:*)
- UNAME_RELEASE=`(head -1 /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
- test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3
- case "`/bin/arch`" in
- sun3)
- echo m68k-sun-sunos${UNAME_RELEASE}
- ;;
- sun4)
- echo sparc-sun-sunos${UNAME_RELEASE}
- ;;
- esac
- exit 0 ;;
- aushp:SunOS:*:*)
- echo sparc-auspex-sunos${UNAME_RELEASE}
- exit 0 ;;
- atari*:OpenBSD:*:*)
- echo m68k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- # The situation for MiNT is a little confusing. The machine name
- # can be virtually everything (everything which is not
- # "atarist" or "atariste" at least should have a processor
- # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
- # to the lowercase version "mint" (or "freemint"). Finally
- # the system name "TOS" denotes a system which is actually not
- # MiNT. But MiNT is downward compatible to TOS, so this should
- # be no problem.
- atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit 0 ;;
- atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit 0 ;;
- *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
- echo m68k-atari-mint${UNAME_RELEASE}
- exit 0 ;;
- milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
- echo m68k-milan-mint${UNAME_RELEASE}
- exit 0 ;;
- hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
- echo m68k-hades-mint${UNAME_RELEASE}
- exit 0 ;;
- *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
- echo m68k-unknown-mint${UNAME_RELEASE}
- exit 0 ;;
- sun3*:OpenBSD:*:*)
- echo m68k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- mac68k:OpenBSD:*:*)
- echo m68k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- mvme68k:OpenBSD:*:*)
- echo m68k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- mvme88k:OpenBSD:*:*)
- echo m88k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- powerpc:machten:*:*)
- echo powerpc-apple-machten${UNAME_RELEASE}
- exit 0 ;;
- RISC*:Mach:*:*)
- echo mips-dec-mach_bsd4.3
- exit 0 ;;
- RISC*:ULTRIX:*:*)
- echo mips-dec-ultrix${UNAME_RELEASE}
- exit 0 ;;
- VAX*:ULTRIX*:*:*)
- echo vax-dec-ultrix${UNAME_RELEASE}
- exit 0 ;;
- 2020:CLIX:*:* | 2430:CLIX:*:*)
- echo clipper-intergraph-clix${UNAME_RELEASE}
- exit 0 ;;
- mips:*:*:UMIPS | mips:*:*:RISCos)
- sed 's/^ //' << EOF >$dummy.c
-#ifdef __cplusplus
-#include /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
- #if defined (host_mips) && defined (MIPSEB)
- #if defined (SYSTYPE_SYSV)
- printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_SVR4)
- printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0);
- #endif
- #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
- printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0);
- #endif
- #endif
- exit (-1);
- }
-EOF
- $CC_FOR_BUILD $dummy.c -o $dummy \
- && ./$dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \
- && rm $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- echo mips-mips-riscos${UNAME_RELEASE}
- exit 0 ;;
- Night_Hawk:Power_UNIX:*:*)
- echo powerpc-harris-powerunix
- exit 0 ;;
- m88k:CX/UX:7*:*)
- echo m88k-harris-cxux7
- exit 0 ;;
- m88k:*:4*:R4*)
- echo m88k-motorola-sysv4
- exit 0 ;;
- m88k:*:3*:R3*)
- echo m88k-motorola-sysv3
- exit 0 ;;
- AViiON:dgux:*:*)
- # DG/UX returns AViiON for all architectures
- UNAME_PROCESSOR=`/usr/bin/uname -p`
- if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ]
- then
- if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \
- [ ${TARGET_BINARY_INTERFACE}x = x ]
- then
- echo m88k-dg-dgux${UNAME_RELEASE}
- else
- echo m88k-dg-dguxbcs${UNAME_RELEASE}
- fi
- else
- echo i586-dg-dgux${UNAME_RELEASE}
- fi
- exit 0 ;;
- M88*:DolphinOS:*:*) # DolphinOS (SVR3)
- echo m88k-dolphin-sysv3
- exit 0 ;;
- M88*:*:R3*:*)
- # Delta 88k system running SVR3
- echo m88k-motorola-sysv3
- exit 0 ;;
- XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
- echo m88k-tektronix-sysv3
- exit 0 ;;
- Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
- echo m68k-tektronix-bsd
- exit 0 ;;
- *:IRIX*:*:*)
- echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'`
- exit 0 ;;
- ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
- echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
- exit 0 ;; # Note that: echo "'`uname -s`'" gives 'AIX '
- i?86:AIX:*:*)
- echo i386-ibm-aix
- exit 0 ;;
- *:AIX:2:3)
- if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
- sed 's/^ //' << EOF >$dummy.c
- #include
-
- main()
- {
- if (!__power_pc())
- exit(1);
- puts("powerpc-ibm-aix3.2.5");
- exit(0);
- }
-EOF
- $CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- echo rs6000-ibm-aix3.2.5
- elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
- echo rs6000-ibm-aix3.2.4
- else
- echo rs6000-ibm-aix3.2
- fi
- exit 0 ;;
- *:AIX:*:4)
- IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | head -1 | awk '{ print $1 }'`
- if /usr/sbin/lsattr -EHl ${IBM_CPU_ID} | grep POWER >/dev/null 2>&1; then
- IBM_ARCH=rs6000
- else
- IBM_ARCH=powerpc
- fi
- if [ -x /usr/bin/oslevel ] ; then
- IBM_REV=`/usr/bin/oslevel`
- else
- IBM_REV=4.${UNAME_RELEASE}
- fi
- echo ${IBM_ARCH}-ibm-aix${IBM_REV}
- exit 0 ;;
- *:AIX:*:*)
- echo rs6000-ibm-aix
- exit 0 ;;
- ibmrt:4.4BSD:*|romp-ibm:BSD:*)
- echo romp-ibm-bsd4.4
- exit 0 ;;
- ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
- echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to
- exit 0 ;; # report: romp-ibm BSD 4.3
- *:BOSX:*:*)
- echo rs6000-bull-bosx
- exit 0 ;;
- DPX/2?00:B.O.S.:*:*)
- echo m68k-bull-sysv3
- exit 0 ;;
- 9000/[34]??:4.3bsd:1.*:*)
- echo m68k-hp-bsd
- exit 0 ;;
- hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
- echo m68k-hp-bsd4.4
- exit 0 ;;
- 9000/[34678]??:HP-UX:*:*)
- case "${UNAME_MACHINE}" in
- 9000/31? ) HP_ARCH=m68000 ;;
- 9000/[34]?? ) HP_ARCH=m68k ;;
- 9000/[678][0-9][0-9])
- sed 's/^ //' << EOF >$dummy.c
-
- #define _HPUX_SOURCE
- #include
- #include
-
- int main ()
- {
- #if defined(_SC_KERNEL_BITS)
- long bits = sysconf(_SC_KERNEL_BITS);
- #endif
- long cpu = sysconf (_SC_CPU_VERSION);
-
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
- case CPU_PA_RISC2_0:
- #if defined(_SC_KERNEL_BITS)
- switch (bits)
- {
- case 64: puts ("hppa2.0w"); break;
- case 32: puts ("hppa2.0n"); break;
- default: puts ("hppa2.0"); break;
- } break;
- #else /* !defined(_SC_KERNEL_BITS) */
- puts ("hppa2.0"); break;
- #endif
- default: puts ("hppa1.0"); break;
- }
- exit (0);
- }
-EOF
- (CCOPTS= $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null ) && HP_ARCH=`./$dummy`
- rm -f $dummy.c $dummy
- esac
- HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'`
- echo ${HP_ARCH}-hp-hpux${HPUX_REV}
- exit 0 ;;
- 3050*:HI-UX:*:*)
- sed 's/^ //' << EOF >$dummy.c
- #include
- int
- main ()
- {
- long cpu = sysconf (_SC_CPU_VERSION);
- /* The order matters, because CPU_IS_HP_MC68K erroneously returns
- true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
- results, however. */
- if (CPU_IS_PA_RISC (cpu))
- {
- switch (cpu)
- {
- case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
- case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
- default: puts ("hppa-hitachi-hiuxwe2"); break;
- }
- }
- else if (CPU_IS_HP_MC68K (cpu))
- puts ("m68k-hitachi-hiuxwe2");
- else puts ("unknown-hitachi-hiuxwe2");
- exit (0);
- }
-EOF
- $CC_FOR_BUILD $dummy.c -o $dummy && ./$dummy && rm $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- echo unknown-hitachi-hiuxwe2
- exit 0 ;;
- 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* )
- echo hppa1.1-hp-bsd
- exit 0 ;;
- 9000/8??:4.3bsd:*:*)
- echo hppa1.0-hp-bsd
- exit 0 ;;
- *9??*:MPE/iX:*:*)
- echo hppa1.0-hp-mpeix
- exit 0 ;;
- hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* )
- echo hppa1.1-hp-osf
- exit 0 ;;
- hp8??:OSF1:*:*)
- echo hppa1.0-hp-osf
- exit 0 ;;
- i?86:OSF1:*:*)
- if [ -x /usr/sbin/sysversion ] ; then
- echo ${UNAME_MACHINE}-unknown-osf1mk
- else
- echo ${UNAME_MACHINE}-unknown-osf1
- fi
- exit 0 ;;
- parisc*:Lites*:*:*)
- echo hppa1.1-hp-lites
- exit 0 ;;
- hppa*:OpenBSD:*:*)
- echo hppa-unknown-openbsd
- exit 0 ;;
- C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
- echo c1-convex-bsd
- exit 0 ;;
- C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit 0 ;;
- C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
- echo c34-convex-bsd
- exit 0 ;;
- C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
- echo c38-convex-bsd
- exit 0 ;;
- C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
- echo c4-convex-bsd
- exit 0 ;;
- CRAY*X-MP:*:*:*)
- echo xmp-cray-unicos
- exit 0 ;;
- CRAY*Y-MP:*:*:*)
- echo ymp-cray-unicos${UNAME_RELEASE}
- exit 0 ;;
- CRAY*[A-Z]90:*:*:*)
- echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \
- | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
- -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/
- exit 0 ;;
- CRAY*TS:*:*:*)
- echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit 0 ;;
- CRAY*T3E:*:*:*)
- echo alpha-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit 0 ;;
- CRAY*SV1:*:*:*)
- echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/'
- exit 0 ;;
- CRAY-2:*:*:*)
- echo cray2-cray-unicos
- exit 0 ;;
- F300:UNIX_System_V:*:*)
- FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'`
- FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'`
- echo "f300-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
- exit 0 ;;
- F301:UNIX_System_V:*:*)
- echo f301-fujitsu-uxpv`echo $UNAME_RELEASE | sed 's/ .*//'`
- exit 0 ;;
- hp300:OpenBSD:*:*)
- echo m68k-unknown-openbsd${UNAME_RELEASE}
- exit 0 ;;
- i?86:BSD/386:*:* | i?86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
- echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE}
- exit 0 ;;
- sparc*:BSD/OS:*:*)
- echo sparc-unknown-bsdi${UNAME_RELEASE}
- exit 0 ;;
- *:BSD/OS:*:*)
- echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE}
- exit 0 ;;
- *:FreeBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`
- exit 0 ;;
- *:OpenBSD:*:*)
- echo ${UNAME_MACHINE}-unknown-openbsd`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
- exit 0 ;;
- i*:CYGWIN*:*)
- echo ${UNAME_MACHINE}-pc-cygwin
- exit 0 ;;
- i*:MINGW*:*)
- echo ${UNAME_MACHINE}-pc-mingw32
- exit 0 ;;
- i*:Windows_NT*:* | Pentium*:Windows_NT*:*)
- # How do we know it's Interix rather than the generic POSIX subsystem?
- # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we
- # UNAME_MACHINE based on the output of uname instead of i386?
- echo i386-pc-interix
- exit 0 ;;
- i*:UWIN*:*)
- echo ${UNAME_MACHINE}-pc-uwin
- exit 0 ;;
- p*:CYGWIN*:*)
- echo powerpcle-unknown-cygwin
- exit 0 ;;
- prep*:SunOS:5.*:*)
- echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'`
- exit 0 ;;
- *:GNU:*:*)
- echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'`
- exit 0 ;;
- *:Linux:*:*)
-
- # The BFD linker knows what the default object file format is, so
- # first see if it will tell us. cd to the root directory to prevent
- # problems with other programs or directories called `ld' in the path.
- ld_help_string=`cd /; ld --help 2>&1`
- ld_supported_emulations=`echo $ld_help_string \
- | sed -ne '/supported emulations:/!d
- s/[ ][ ]*/ /g
- s/.*supported emulations: *//
- s/ .*//
- p'`
- case "$ld_supported_emulations" in
- *ia64)
- echo "${UNAME_MACHINE}-unknown-linux"
- exit 0
- ;;
- i?86linux)
- echo "${UNAME_MACHINE}-pc-linux-gnuaout"
- exit 0
- ;;
- elf_i?86)
- echo "${UNAME_MACHINE}-pc-linux"
- exit 0
- ;;
- i?86coff)
- echo "${UNAME_MACHINE}-pc-linux-gnucoff"
- exit 0
- ;;
- sparclinux)
- echo "${UNAME_MACHINE}-unknown-linux-gnuaout"
- exit 0
- ;;
- armlinux)
- echo "${UNAME_MACHINE}-unknown-linux-gnuaout"
- exit 0
- ;;
- elf32arm*)
- echo "${UNAME_MACHINE}-unknown-linux-gnuoldld"
- exit 0
- ;;
- armelf_linux*)
- echo "${UNAME_MACHINE}-unknown-linux-gnu"
- exit 0
- ;;
- m68klinux)
- echo "${UNAME_MACHINE}-unknown-linux-gnuaout"
- exit 0
- ;;
- elf32ppc | elf32ppclinux)
- # Determine Lib Version
- cat >$dummy.c <
-#if defined(__GLIBC__)
-extern char __libc_version[];
-extern char __libc_release[];
-#endif
-main(argc, argv)
- int argc;
- char *argv[];
-{
-#if defined(__GLIBC__)
- printf("%s %s\n", __libc_version, __libc_release);
-#else
- printf("unkown\n");
-#endif
- return 0;
-}
-EOF
- LIBC=""
- $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null
- if test "$?" = 0 ; then
- ./$dummy | grep 1\.99 > /dev/null
- if test "$?" = 0 ; then
- LIBC="libc1"
- fi
- fi
- rm -f $dummy.c $dummy
- echo powerpc-unknown-linux-gnu${LIBC}
- exit 0
- ;;
- esac
-
- if test "${UNAME_MACHINE}" = "alpha" ; then
- cat <$dummy.s
- .data
- \$Lformat:
- .byte 37,100,45,37,120,10,0 # "%d-%x\n"
-
- .text
- .globl main
- .align 4
- .ent main
- main:
- .frame \$30,16,\$26,0
- ldgp \$29,0(\$27)
- .prologue 1
- .long 0x47e03d80 # implver \$0
- lda \$2,-1
- .long 0x47e20c21 # amask \$2,\$1
- lda \$16,\$Lformat
- mov \$0,\$17
- not \$1,\$18
- jsr \$26,printf
- ldgp \$29,0(\$26)
- mov 0,\$16
- jsr \$26,exit
- .end main
-EOF
- LIBC=""
- $CC_FOR_BUILD $dummy.s -o $dummy 2>/dev/null
- if test "$?" = 0 ; then
- case `./$dummy` in
- 0-0)
- UNAME_MACHINE="alpha"
- ;;
- 1-0)
- UNAME_MACHINE="alphaev5"
- ;;
- 1-1)
- UNAME_MACHINE="alphaev56"
- ;;
- 1-101)
- UNAME_MACHINE="alphapca56"
- ;;
- 2-303)
- UNAME_MACHINE="alphaev6"
- ;;
- 2-307)
- UNAME_MACHINE="alphaev67"
- ;;
- esac
-
- objdump --private-headers $dummy | \
- grep ld.so.1 > /dev/null
- if test "$?" = 0 ; then
- LIBC="libc1"
- fi
- fi
- rm -f $dummy.s $dummy
- echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} ; exit 0
- elif test "${UNAME_MACHINE}" = "mips" ; then
- cat >$dummy.c < /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
-#ifdef __MIPSEB__
- printf ("%s-unknown-linux-gnu\n", argv[1]);
-#endif
-#ifdef __MIPSEL__
- printf ("%sel-unknown-linux-gnu\n", argv[1]);
-#endif
- return 0;
-}
-EOF
- $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- elif test "${UNAME_MACHINE}" = "s390"; then
- echo s390-ibm-linux && exit 0
- else
- # Either a pre-BFD a.out linker (linux-gnuoldld)
- # or one that does not give us useful --help.
- # GCC wants to distinguish between linux-gnuoldld and linux-gnuaout.
- # If ld does not provide *any* "supported emulations:"
- # that means it is gnuoldld.
- echo "$ld_help_string" | grep >/dev/null 2>&1 "supported emulations:"
- test $? != 0 && echo "${UNAME_MACHINE}-pc-linux-gnuoldld" && exit 0
-
- case "${UNAME_MACHINE}" in
- i?86)
- VENDOR=pc;
- ;;
- *)
- VENDOR=unknown;
- ;;
- esac
- # Determine whether the default compiler is a.out or elf
- cat >$dummy.c <
-#ifdef __cplusplus
-#include /* for printf() prototype */
- int main (int argc, char *argv[]) {
-#else
- int main (argc, argv) int argc; char *argv[]; {
-#endif
-#ifdef __ELF__
-# ifdef __GLIBC__
-# if __GLIBC__ >= 2
- printf ("%s-${VENDOR}-linux-gnu\n", argv[1]);
-# else
- printf ("%s-${VENDOR}-linux-gnulibc1\n", argv[1]);
-# endif
-# else
- printf ("%s-${VENDOR}-linux-gnulibc1\n", argv[1]);
-# endif
-#else
- printf ("%s-${VENDOR}-linux-gnuaout\n", argv[1]);
-#endif
- return 0;
-}
-EOF
- $CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy "${UNAME_MACHINE}" && rm $dummy.c $dummy && exit 0
- rm -f $dummy.c $dummy
- fi ;;
-# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. earlier versions
-# are messed up and put the nodename in both sysname and nodename.
- i?86:DYNIX/ptx:4*:*)
- echo i386-sequent-sysv4
- exit 0 ;;
- i?86:UNIX_SV:4.2MP:2.*)
- # Unixware is an offshoot of SVR4, but it has its own version
- # number series starting with 2...
- # I am not positive that other SVR4 systems won't match this,
- # I just have to hope. -- rms.
- # Use sysv4.2uw... so that sysv4* matches it.
- echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION}
- exit 0 ;;
- i?86:*:4.*:* | i?86:SYSTEM_V:4.*:*)
- UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'`
- if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
- echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL}
- else
- echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL}
- fi
- exit 0 ;;
- i?86:*:5:7*)
- # Fixed at (any) Pentium or better
- UNAME_MACHINE=i586
- if [ ${UNAME_SYSTEM} = "UnixWare" ] ; then
- echo ${UNAME_MACHINE}-sco-sysv${UNAME_RELEASE}uw${UNAME_VERSION}
- else
- echo ${UNAME_MACHINE}-pc-sysv${UNAME_RELEASE}
- fi
- exit 0 ;;
- i?86:*:3.2:*)
- if test -f /usr/options/cb.name; then
- UNAME_REL=`sed -n 's/.*Version //p' /dev/null >/dev/null ; then
- UNAME_REL=`(/bin/uname -X|egrep Release|sed -e 's/.*= //')`
- (/bin/uname -X|egrep i80486 >/dev/null) && UNAME_MACHINE=i486
- (/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
- && UNAME_MACHINE=i586
- (/bin/uname -X|egrep '^Machine.*Pent ?II' >/dev/null) \
- && UNAME_MACHINE=i686
- (/bin/uname -X|egrep '^Machine.*Pentium Pro' >/dev/null) \
- && UNAME_MACHINE=i686
- echo ${UNAME_MACHINE}-pc-sco$UNAME_REL
- else
- echo ${UNAME_MACHINE}-pc-sysv32
- fi
- exit 0 ;;
- i?86:*DOS:*:*)
- echo ${UNAME_MACHINE}-pc-msdosdjgpp
- exit 0 ;;
- pc:*:*:*)
- # Left here for compatibility:
- # uname -m prints for DJGPP always 'pc', but it prints nothing about
- # the processor, so we play safe by assuming i386.
- echo i386-pc-msdosdjgpp
- exit 0 ;;
- Intel:Mach:3*:*)
- echo i386-pc-mach3
- exit 0 ;;
- paragon:*:*:*)
- echo i860-intel-osf1
- exit 0 ;;
- i860:*:4.*:*) # i860-SVR4
- if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
- echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4
- else # Add other i860-SVR4 vendors below as they are discovered.
- echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4
- fi
- exit 0 ;;
- mini*:CTIX:SYS*5:*)
- # "miniframe"
- echo m68010-convergent-sysv
- exit 0 ;;
- M68*:*:R3V[567]*:*)
- test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;;
- 3[34]??:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 4850:*:4.0:3.0)
- OS_REL=''
- test -r /etc/.relid \
- && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && echo i486-ncr-sysv4.3${OS_REL} && exit 0
- /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
- && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;;
- 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
- /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
- && echo i486-ncr-sysv4 && exit 0 ;;
- m68*:LynxOS:2.*:*)
- echo m68k-unknown-lynxos${UNAME_RELEASE}
- exit 0 ;;
- mc68030:UNIX_System_V:4.*:*)
- echo m68k-atari-sysv4
- exit 0 ;;
- i?86:LynxOS:2.*:* | i?86:LynxOS:3.[01]*:*)
- echo i386-unknown-lynxos${UNAME_RELEASE}
- exit 0 ;;
- TSUNAMI:LynxOS:2.*:*)
- echo sparc-unknown-lynxos${UNAME_RELEASE}
- exit 0 ;;
- rs6000:LynxOS:2.*:* | PowerPC:LynxOS:2.*:*)
- echo rs6000-unknown-lynxos${UNAME_RELEASE}
- exit 0 ;;
- SM[BE]S:UNIX_SV:*:*)
- echo mips-dde-sysv${UNAME_RELEASE}
- exit 0 ;;
- RM*:ReliantUNIX-*:*:*)
- echo mips-sni-sysv4
- exit 0 ;;
- RM*:SINIX-*:*:*)
- echo mips-sni-sysv4
- exit 0 ;;
- *:SINIX-*:*:*)
- if uname -p 2>/dev/null >/dev/null ; then
- UNAME_MACHINE=`(uname -p) 2>/dev/null`
- echo ${UNAME_MACHINE}-sni-sysv4
- else
- echo ns32k-sni-sysv
- fi
- exit 0 ;;
- PENTIUM:CPunix:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
- # says
- echo i586-unisys-sysv4
- exit 0 ;;
- *:UNIX_System_V:4*:FTX*)
- # From Gerald Hewes .
- # How about differentiating between stratus architectures? -djm
- echo hppa1.1-stratus-sysv4
- exit 0 ;;
- *:*:*:FTX*)
- # From seanf@swdc.stratus.com.
- echo i860-stratus-sysv4
- exit 0 ;;
- mc68*:A/UX:*:*)
- echo m68k-apple-aux${UNAME_RELEASE}
- exit 0 ;;
- news*:NEWS-OS:*:6*)
- echo mips-sony-newsos6
- exit 0 ;;
- R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
- if [ -d /usr/nec ]; then
- echo mips-nec-sysv${UNAME_RELEASE}
- else
- echo mips-unknown-sysv${UNAME_RELEASE}
- fi
- exit 0 ;;
- BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
- echo powerpc-be-beos
- exit 0 ;;
- BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only.
- echo powerpc-apple-beos
- exit 0 ;;
- BePC:BeOS:*:*) # BeOS running on Intel PC compatible.
- echo i586-pc-beos
- exit 0 ;;
- SX-4:SUPER-UX:*:*)
- echo sx4-nec-superux${UNAME_RELEASE}
- exit 0 ;;
- SX-5:SUPER-UX:*:*)
- echo sx5-nec-superux${UNAME_RELEASE}
- exit 0 ;;
- Power*:Rhapsody:*:*)
- echo powerpc-apple-rhapsody${UNAME_RELEASE}
- exit 0 ;;
- *:Rhapsody:*:*)
- echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE}
- exit 0 ;;
- *:Darwin:*:*)
- echo `uname -p`-apple-darwin${UNAME_RELEASE}
- exit 0 ;;
- *:procnto*:*:* | *:QNX:[0123456789]*:*)
- if test "${UNAME_MACHINE}" = "x86pc"; then
- UNAME_MACHINE=pc
- fi
- echo `uname -p`-${UNAME_MACHINE}-nto-qnx
- exit 0 ;;
- *:QNX:*:4*)
- echo i386-pc-qnx
- exit 0 ;;
- NSR-W:NONSTOP_KERNEL:*:*)
- echo nsr-tandem-nsk${UNAME_RELEASE}
- exit 0 ;;
- BS2000:POSIX*:*:*)
- echo bs2000-siemens-sysv
- exit 0 ;;
- DS/*:UNIX_System_V:*:*)
- echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE}
- exit 0 ;;
-esac
-
-#echo '(No uname command or uname output not recognized.)' 1>&2
-#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2
-
-cat >$dummy.c <
-# include
-#endif
-main ()
-{
-#if defined (sony)
-#if defined (MIPSEB)
- /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed,
- I don't know.... */
- printf ("mips-sony-bsd\n"); exit (0);
-#else
-#include
- printf ("m68k-sony-newsos%s\n",
-#ifdef NEWSOS4
- "4"
-#else
- ""
-#endif
- ); exit (0);
-#endif
-#endif
-
-#if defined (__arm) && defined (__acorn) && defined (__unix)
- printf ("arm-acorn-riscix"); exit (0);
-#endif
-
-#if defined (hp300) && !defined (hpux)
- printf ("m68k-hp-bsd\n"); exit (0);
-#endif
-
-#if defined (NeXT)
-#if !defined (__ARCHITECTURE__)
-#define __ARCHITECTURE__ "m68k"
-#endif
- int version;
- version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`;
- if (version < 4)
- printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version);
- else
- printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version);
- exit (0);
-#endif
-
-#if defined (MULTIMAX) || defined (n16)
-#if defined (UMAXV)
- printf ("ns32k-encore-sysv\n"); exit (0);
-#else
-#if defined (CMU)
- printf ("ns32k-encore-mach\n"); exit (0);
-#else
- printf ("ns32k-encore-bsd\n"); exit (0);
-#endif
-#endif
-#endif
-
-#if defined (__386BSD__)
- printf ("i386-pc-bsd\n"); exit (0);
-#endif
-
-#if defined (sequent)
-#if defined (i386)
- printf ("i386-sequent-dynix\n"); exit (0);
-#endif
-#if defined (ns32000)
- printf ("ns32k-sequent-dynix\n"); exit (0);
-#endif
-#endif
-
-#if defined (_SEQUENT_)
- struct utsname un;
-
- uname(&un);
-
- if (strncmp(un.version, "V2", 2) == 0) {
- printf ("i386-sequent-ptx2\n"); exit (0);
- }
- if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */
- printf ("i386-sequent-ptx1\n"); exit (0);
- }
- printf ("i386-sequent-ptx\n"); exit (0);
-
-#endif
-
-#if defined (vax)
-#if !defined (ultrix)
- printf ("vax-dec-bsd\n"); exit (0);
-#else
- printf ("vax-dec-ultrix\n"); exit (0);
-#endif
-#endif
-
-#if defined (alliant) && defined (i860)
- printf ("i860-alliant-bsd\n"); exit (0);
-#endif
-
- exit (1);
-}
-EOF
-
-$CC_FOR_BUILD $dummy.c -o $dummy 2>/dev/null && ./$dummy && rm $dummy.c $dummy && exit 0
-rm -f $dummy.c $dummy
-
-# Apollos put the system type in the environment.
-
-test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; }
-
-# Convex versions that predate uname can use getsysinfo(1)
-
-if [ -x /usr/convex/getsysinfo ]
-then
- case `getsysinfo -f cpu_type` in
- c1*)
- echo c1-convex-bsd
- exit 0 ;;
- c2*)
- if getsysinfo -f scalar_acc
- then echo c32-convex-bsd
- else echo c2-convex-bsd
- fi
- exit 0 ;;
- c34*)
- echo c34-convex-bsd
- exit 0 ;;
- c38*)
- echo c38-convex-bsd
- exit 0 ;;
- c4*)
- echo c4-convex-bsd
- exit 0 ;;
- esac
-fi
-
-#echo '(Unable to guess system type)' 1>&2
-
-exit 1
diff --git a/libtecla-1.4.1/config.sub b/libtecla-1.4.1/config.sub
deleted file mode 100644
index c8e7785..0000000
--- a/libtecla-1.4.1/config.sub
+++ /dev/null
@@ -1,1268 +0,0 @@
-#! /bin/sh
-# Configuration validation subroutine script, version 1.1.
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
-# Free Software Foundation, Inc.
-#
-# This file is (in principle) common to ALL GNU software.
-# The presence of a machine in this file suggests that SOME GNU software
-# can handle that machine. It does not imply ALL GNU software can.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# Written by Per Bothner .
-# Please send patches to .
-#
-# Configuration subroutine to validate and canonicalize a configuration type.
-# Supply the specified configuration type as an argument.
-# If it is invalid, we print an error message on stderr and exit with code 1.
-# Otherwise, we print the canonical config type on stdout and succeed.
-
-# This file is supposed to be the same for all GNU packages
-# and recognize all the CPU types, system types and aliases
-# that are meaningful with *any* GNU software.
-# Each package is responsible for reporting which valid configurations
-# it does not support. The user should be able to distinguish
-# a failure to support a valid configuration from a meaningless
-# configuration.
-
-# The goal of this file is to map all the various variations of a given
-# machine specification into a single specification in the form:
-# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
-# or in some cases, the newer four-part form:
-# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
-# It is wrong to echo any other type of specification.
-
-if [ x$1 = x ]
-then
- echo Configuration name missing. 1>&2
- echo "Usage: $0 CPU-MFR-OPSYS" 1>&2
- echo "or $0 ALIAS" 1>&2
- echo where ALIAS is a recognized configuration type. 1>&2
- exit 1
-fi
-
-# First pass through any local machine types.
-case $1 in
- *local*)
- echo $1
- exit 0
- ;;
- *)
- ;;
-esac
-
-# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any).
-# Here we must recognize all the valid KERNEL-OS combinations.
-maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
-case $maybe_os in
- nto-qnx* | linux-gnu*)
- os=-$maybe_os
- basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'`
- ;;
- *)
- basic_machine=`echo $1 | sed 's/-[^-]*$//'`
- if [ $basic_machine != $1 ]
- then os=`echo $1 | sed 's/.*-/-/'`
- else os=; fi
- ;;
-esac
-
-### Let's recognize common machines as not being operating systems so
-### that things like config.sub decstation-3100 work. We also
-### recognize some manufacturers as not being operating systems, so we
-### can provide default operating systems below.
-case $os in
- -sun*os*)
- # Prevent following clause from handling this invalid input.
- ;;
- -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
- -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
- -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
- -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
- -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
- -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
- -apple)
- os=
- basic_machine=$1
- ;;
- -sim | -cisco | -oki | -wec | -winbond)
- os=
- basic_machine=$1
- ;;
- -scout)
- ;;
- -wrs)
- os=-vxworks
- basic_machine=$1
- ;;
- -hiux*)
- os=-hiuxwe2
- ;;
- -sco5)
- os=-sco3.2v5
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco4)
- os=-sco3.2v4
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2.[4-9]*)
- os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco3.2v[4-9]*)
- # Don't forget version if it is 3.2v4 or newer.
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -sco*)
- os=-sco3.2v2
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -udk*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -isc)
- os=-isc2.2
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -clix*)
- basic_machine=clipper-intergraph
- ;;
- -isc*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'`
- ;;
- -lynx*)
- os=-lynxos
- ;;
- -ptx*)
- basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'`
- ;;
- -windowsnt*)
- os=`echo $os | sed -e 's/windowsnt/winnt/'`
- ;;
- -psos*)
- os=-psos
- ;;
- -mint | -mint[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
-esac
-
-# Decode aliases for certain CPU-COMPANY combinations.
-case $basic_machine in
- # Recognize the basic CPU types without company name.
- # Some are omitted here because they have special meanings below.
- tahoe | i860 | ia64 | m32r | m68k | m68000 | m88k | ns32k | arc | arm \
- | arme[lb] | pyramid | mn10200 | mn10300 | tron | a29k \
- | 580 | i960 | h8300 \
- | x86 | ppcbe | mipsbe | mipsle | shbe | shle | armbe | armle \
- | hppa | hppa1.0 | hppa1.1 | hppa2.0 | hppa2.0w | hppa2.0n \
- | hppa64 \
- | alpha | alphaev[4-8] | alphaev56 | alphapca5[67] \
- | alphaev6[78] \
- | we32k | ns16k | clipper | i370 | sh | powerpc | powerpcle \
- | 1750a | dsp16xx | pdp11 | mips16 | mips64 | mipsel | mips64el \
- | mips64orion | mips64orionel | mipstx39 | mipstx39el \
- | mips64vr4300 | mips64vr4300el | mips64vr4100 | mips64vr4100el \
- | mips64vr5000 | miprs64vr5000el | mcore \
- | sparc | sparclet | sparclite | sparc64 | sparcv9 | v850 | c4x \
- | thumb | d10v | fr30 | avr)
- basic_machine=$basic_machine-unknown
- ;;
- m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | z8k | v70 | h8500 | w65 | pj | pjl)
- ;;
-
- # We use `pc' rather than `unknown'
- # because (1) that's what they normally are, and
- # (2) the word "unknown" tends to confuse beginning users.
- i[34567]86)
- basic_machine=$basic_machine-pc
- ;;
- # Object if more than one company name word.
- *-*-*)
- echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2
- exit 1
- ;;
- # Recognize the basic CPU types with company name.
- # FIXME: clean up the formatting here.
- vax-* | tahoe-* | i[34567]86-* | i860-* | ia64-* | m32r-* | m68k-* | m68000-* \
- | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | arm-* | c[123]* \
- | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
- | power-* | none-* | 580-* | cray2-* | h8300-* | h8500-* | i960-* \
- | xmp-* | ymp-* \
- | x86-* | ppcbe-* | mipsbe-* | mipsle-* | shbe-* | shle-* | armbe-* | armle-* \
- | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* | hppa2.0w-* \
- | hppa2.0n-* | hppa64-* \
- | alpha-* | alphaev[4-8]-* | alphaev56-* | alphapca5[67]-* \
- | alphaev6[78]-* \
- | we32k-* | cydra-* | ns16k-* | pn-* | np1-* | xps100-* \
- | clipper-* | orion-* \
- | sparclite-* | pdp11-* | sh-* | powerpc-* | powerpcle-* \
- | sparc64-* | sparcv9-* | sparc86x-* | mips16-* | mips64-* | mipsel-* \
- | mips64el-* | mips64orion-* | mips64orionel-* \
- | mips64vr4100-* | mips64vr4100el-* | mips64vr4300-* | mips64vr4300el-* \
- | mipstx39-* | mipstx39el-* | mcore-* \
- | f301-* | armv*-* | s390-* | sv1-* | t3e-* \
- | m88110-* | m680[01234]0-* | m683?2-* | m68360-* | z8k-* | d10v-* \
- | thumb-* | v850-* | d30v-* | tic30-* | c30-* | fr30-* \
- | bs2000-*)
- ;;
- # Recognize the various machine names and aliases which stand
- # for a CPU type and a company and sometimes even an OS.
- 386bsd)
- basic_machine=i386-unknown
- os=-bsd
- ;;
- 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
- basic_machine=m68000-att
- ;;
- 3b*)
- basic_machine=we32k-att
- ;;
- a29khif)
- basic_machine=a29k-amd
- os=-udi
- ;;
- adobe68k)
- basic_machine=m68010-adobe
- os=-scout
- ;;
- alliant | fx80)
- basic_machine=fx80-alliant
- ;;
- altos | altos3068)
- basic_machine=m68k-altos
- ;;
- am29k)
- basic_machine=a29k-none
- os=-bsd
- ;;
- amdahl)
- basic_machine=580-amdahl
- os=-sysv
- ;;
- amiga | amiga-*)
- basic_machine=m68k-cbm
- ;;
- amigaos | amigados)
- basic_machine=m68k-cbm
- os=-amigaos
- ;;
- amigaunix | amix)
- basic_machine=m68k-cbm
- os=-sysv4
- ;;
- apollo68)
- basic_machine=m68k-apollo
- os=-sysv
- ;;
- apollo68bsd)
- basic_machine=m68k-apollo
- os=-bsd
- ;;
- aux)
- basic_machine=m68k-apple
- os=-aux
- ;;
- balance)
- basic_machine=ns32k-sequent
- os=-dynix
- ;;
- convex-c1)
- basic_machine=c1-convex
- os=-bsd
- ;;
- convex-c2)
- basic_machine=c2-convex
- os=-bsd
- ;;
- convex-c32)
- basic_machine=c32-convex
- os=-bsd
- ;;
- convex-c34)
- basic_machine=c34-convex
- os=-bsd
- ;;
- convex-c38)
- basic_machine=c38-convex
- os=-bsd
- ;;
- cray | ymp)
- basic_machine=ymp-cray
- os=-unicos
- ;;
- cray2)
- basic_machine=cray2-cray
- os=-unicos
- ;;
- [ctj]90-cray)
- basic_machine=c90-cray
- os=-unicos
- ;;
- crds | unos)
- basic_machine=m68k-crds
- ;;
- da30 | da30-*)
- basic_machine=m68k-da30
- ;;
- decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
- basic_machine=mips-dec
- ;;
- delta | 3300 | motorola-3300 | motorola-delta \
- | 3300-motorola | delta-motorola)
- basic_machine=m68k-motorola
- ;;
- delta88)
- basic_machine=m88k-motorola
- os=-sysv3
- ;;
- dpx20 | dpx20-*)
- basic_machine=rs6000-bull
- os=-bosx
- ;;
- dpx2* | dpx2*-bull)
- basic_machine=m68k-bull
- os=-sysv3
- ;;
- ebmon29k)
- basic_machine=a29k-amd
- os=-ebmon
- ;;
- elxsi)
- basic_machine=elxsi-elxsi
- os=-bsd
- ;;
- encore | umax | mmax)
- basic_machine=ns32k-encore
- ;;
- es1800 | OSE68k | ose68k | ose | OSE)
- basic_machine=m68k-ericsson
- os=-ose
- ;;
- fx2800)
- basic_machine=i860-alliant
- ;;
- genix)
- basic_machine=ns32k-ns
- ;;
- gmicro)
- basic_machine=tron-gmicro
- os=-sysv
- ;;
- h3050r* | hiux*)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- h8300hms)
- basic_machine=h8300-hitachi
- os=-hms
- ;;
- h8300xray)
- basic_machine=h8300-hitachi
- os=-xray
- ;;
- h8500hms)
- basic_machine=h8500-hitachi
- os=-hms
- ;;
- harris)
- basic_machine=m88k-harris
- os=-sysv3
- ;;
- hp300-*)
- basic_machine=m68k-hp
- ;;
- hp300bsd)
- basic_machine=m68k-hp
- os=-bsd
- ;;
- hp300hpux)
- basic_machine=m68k-hp
- os=-hpux
- ;;
- hp3k9[0-9][0-9] | hp9[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k2[0-9][0-9] | hp9k31[0-9])
- basic_machine=m68000-hp
- ;;
- hp9k3[2-9][0-9])
- basic_machine=m68k-hp
- ;;
- hp9k6[0-9][0-9] | hp6[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hp9k7[0-79][0-9] | hp7[0-79][0-9])
- basic_machine=hppa1.1-hp
- ;;
- hp9k78[0-9] | hp78[0-9])
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
- # FIXME: really hppa2.0-hp
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][13679] | hp8[0-9][13679])
- basic_machine=hppa1.1-hp
- ;;
- hp9k8[0-9][0-9] | hp8[0-9][0-9])
- basic_machine=hppa1.0-hp
- ;;
- hppa-next)
- os=-nextstep3
- ;;
- hppaosf)
- basic_machine=hppa1.1-hp
- os=-osf
- ;;
- hppro)
- basic_machine=hppa1.1-hp
- os=-proelf
- ;;
- i370-ibm* | ibm*)
- basic_machine=i370-ibm
- ;;
-# I'm not sure what "Sysv32" means. Should this be sysv3.2?
- i[34567]86v32)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv32
- ;;
- i[34567]86v4*)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv4
- ;;
- i[34567]86v)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-sysv
- ;;
- i[34567]86sol2)
- basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'`
- os=-solaris2
- ;;
- i386mach)
- basic_machine=i386-mach
- os=-mach
- ;;
- i386-vsta | vsta)
- basic_machine=i386-unknown
- os=-vsta
- ;;
- i386-go32 | go32)
- basic_machine=i386-unknown
- os=-go32
- ;;
- i386-mingw32 | mingw32)
- basic_machine=i386-unknown
- os=-mingw32
- ;;
- iris | iris4d)
- basic_machine=mips-sgi
- case $os in
- -irix*)
- ;;
- *)
- os=-irix4
- ;;
- esac
- ;;
- isi68 | isi)
- basic_machine=m68k-isi
- os=-sysv
- ;;
- m88k-omron*)
- basic_machine=m88k-omron
- ;;
- magnum | m3230)
- basic_machine=mips-mips
- os=-sysv
- ;;
- merlin)
- basic_machine=ns32k-utek
- os=-sysv
- ;;
- miniframe)
- basic_machine=m68000-convergent
- ;;
- *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
- basic_machine=m68k-atari
- os=-mint
- ;;
- mipsel*-linux*)
- basic_machine=mipsel-unknown
- os=-linux-gnu
- ;;
- mips*-linux*)
- basic_machine=mips-unknown
- os=-linux-gnu
- ;;
- mips3*-*)
- basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`
- ;;
- mips3*)
- basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown
- ;;
- mmix*)
- basic_machine=mmix-knuth
- os=-mmixware
- ;;
- monitor)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- msdos)
- basic_machine=i386-unknown
- os=-msdos
- ;;
- mvs)
- basic_machine=i370-ibm
- os=-mvs
- ;;
- ncr3000)
- basic_machine=i486-ncr
- os=-sysv4
- ;;
- netbsd386)
- basic_machine=i386-unknown
- os=-netbsd
- ;;
- netwinder)
- basic_machine=armv4l-rebel
- os=-linux
- ;;
- news | news700 | news800 | news900)
- basic_machine=m68k-sony
- os=-newsos
- ;;
- news1000)
- basic_machine=m68030-sony
- os=-newsos
- ;;
- news-3600 | risc-news)
- basic_machine=mips-sony
- os=-newsos
- ;;
- necv70)
- basic_machine=v70-nec
- os=-sysv
- ;;
- next | m*-next )
- basic_machine=m68k-next
- case $os in
- -nextstep* )
- ;;
- -ns2*)
- os=-nextstep2
- ;;
- *)
- os=-nextstep3
- ;;
- esac
- ;;
- nh3000)
- basic_machine=m68k-harris
- os=-cxux
- ;;
- nh[45]000)
- basic_machine=m88k-harris
- os=-cxux
- ;;
- nindy960)
- basic_machine=i960-intel
- os=-nindy
- ;;
- mon960)
- basic_machine=i960-intel
- os=-mon960
- ;;
- np1)
- basic_machine=np1-gould
- ;;
- nsr-tandem)
- basic_machine=nsr-tandem
- ;;
- op50n-* | op60c-*)
- basic_machine=hppa1.1-oki
- os=-proelf
- ;;
- OSE68000 | ose68000)
- basic_machine=m68000-ericsson
- os=-ose
- ;;
- os68k)
- basic_machine=m68k-none
- os=-os68k
- ;;
- pa-hitachi)
- basic_machine=hppa1.1-hitachi
- os=-hiuxwe2
- ;;
- paragon)
- basic_machine=i860-intel
- os=-osf
- ;;
- pbd)
- basic_machine=sparc-tti
- ;;
- pbb)
- basic_machine=m68k-tti
- ;;
- pc532 | pc532-*)
- basic_machine=ns32k-pc532
- ;;
- pentium | p5 | k5 | k6 | nexen)
- basic_machine=i586-pc
- ;;
- pentiumpro | p6 | 6x86)
- basic_machine=i686-pc
- ;;
- pentiumii | pentium2)
- basic_machine=i786-pc
- ;;
- pentium-* | p5-* | k5-* | k6-* | nexen-*)
- basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentiumpro-* | p6-* | 6x86-*)
- basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pentiumii-* | pentium2-*)
- basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- pn)
- basic_machine=pn-gould
- ;;
- power) basic_machine=rs6000-ibm
- ;;
- ppc) basic_machine=powerpc-unknown
- ;;
- ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ppcle | powerpclittle | ppc-le | powerpc-little)
- basic_machine=powerpcle-unknown
- ;;
- ppcle-* | powerpclittle-*)
- basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'`
- ;;
- ps2)
- basic_machine=i386-ibm
- ;;
- rom68k)
- basic_machine=m68k-rom68k
- os=-coff
- ;;
- rm[46]00)
- basic_machine=mips-siemens
- ;;
- rtpc | rtpc-*)
- basic_machine=romp-ibm
- ;;
- sa29200)
- basic_machine=a29k-amd
- os=-udi
- ;;
- sequent)
- basic_machine=i386-sequent
- ;;
- sh)
- basic_machine=sh-hitachi
- os=-hms
- ;;
- sparclite-wrs)
- basic_machine=sparclite-wrs
- os=-vxworks
- ;;
- sps7)
- basic_machine=m68k-bull
- os=-sysv2
- ;;
- spur)
- basic_machine=spur-unknown
- ;;
- st2000)
- basic_machine=m68k-tandem
- ;;
- stratus)
- basic_machine=i860-stratus
- os=-sysv4
- ;;
- sun2)
- basic_machine=m68000-sun
- ;;
- sun2os3)
- basic_machine=m68000-sun
- os=-sunos3
- ;;
- sun2os4)
- basic_machine=m68000-sun
- os=-sunos4
- ;;
- sun3os3)
- basic_machine=m68k-sun
- os=-sunos3
- ;;
- sun3os4)
- basic_machine=m68k-sun
- os=-sunos4
- ;;
- sun4os3)
- basic_machine=sparc-sun
- os=-sunos3
- ;;
- sun4os4)
- basic_machine=sparc-sun
- os=-sunos4
- ;;
- sun4sol2)
- basic_machine=sparc-sun
- os=-solaris2
- ;;
- sun3 | sun3-*)
- basic_machine=m68k-sun
- ;;
- sun4)
- basic_machine=sparc-sun
- ;;
- sun386 | sun386i | roadrunner)
- basic_machine=i386-sun
- ;;
- sv1)
- basic_machine=sv1-cray
- os=-unicos
- ;;
- symmetry)
- basic_machine=i386-sequent
- os=-dynix
- ;;
- t3e)
- basic_machine=t3e-cray
- os=-unicos
- ;;
- tx39)
- basic_machine=mipstx39-unknown
- ;;
- tx39el)
- basic_machine=mipstx39el-unknown
- ;;
- tower | tower-32)
- basic_machine=m68k-ncr
- ;;
- udi29k)
- basic_machine=a29k-amd
- os=-udi
- ;;
- ultra3)
- basic_machine=a29k-nyu
- os=-sym1
- ;;
- v810 | necv810)
- basic_machine=v810-nec
- os=-none
- ;;
- vaxv)
- basic_machine=vax-dec
- os=-sysv
- ;;
- vms)
- basic_machine=vax-dec
- os=-vms
- ;;
- vpp*|vx|vx-*)
- basic_machine=f301-fujitsu
- ;;
- vxworks960)
- basic_machine=i960-wrs
- os=-vxworks
- ;;
- vxworks68)
- basic_machine=m68k-wrs
- os=-vxworks
- ;;
- vxworks29k)
- basic_machine=a29k-wrs
- os=-vxworks
- ;;
- w65*)
- basic_machine=w65-wdc
- os=-none
- ;;
- w89k-*)
- basic_machine=hppa1.1-winbond
- os=-proelf
- ;;
- xmp)
- basic_machine=xmp-cray
- os=-unicos
- ;;
- xps | xps100)
- basic_machine=xps100-honeywell
- ;;
- z8k-*-coff)
- basic_machine=z8k-unknown
- os=-sim
- ;;
- none)
- basic_machine=none-none
- os=-none
- ;;
-
-# Here we handle the default manufacturer of certain CPU types. It is in
-# some cases the only manufacturer, in others, it is the most popular.
- w89k)
- basic_machine=hppa1.1-winbond
- ;;
- op50n)
- basic_machine=hppa1.1-oki
- ;;
- op60c)
- basic_machine=hppa1.1-oki
- ;;
- mips)
- if [ x$os = x-linux-gnu ]; then
- basic_machine=mips-unknown
- else
- basic_machine=mips-mips
- fi
- ;;
- romp)
- basic_machine=romp-ibm
- ;;
- rs6000)
- basic_machine=rs6000-ibm
- ;;
- vax)
- basic_machine=vax-dec
- ;;
- pdp11)
- basic_machine=pdp11-dec
- ;;
- we32k)
- basic_machine=we32k-att
- ;;
- sparc | sparcv9)
- basic_machine=sparc-sun
- ;;
- cydra)
- basic_machine=cydra-cydrome
- ;;
- orion)
- basic_machine=orion-highlevel
- ;;
- orion105)
- basic_machine=clipper-highlevel
- ;;
- mac | mpw | mac-mpw)
- basic_machine=m68k-apple
- ;;
- pmac | pmac-mpw)
- basic_machine=powerpc-apple
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- c4x*)
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- ;;
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-
-# Here we canonicalize certain aliases for manufacturers.
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- | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \
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- | -aos* \
- | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
- | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
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- i370-*)
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- os=-sysv4
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- os=-rtu
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- os=-uxpv
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- *-atari*)
- os=-mint
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- basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"`
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-echo $basic_machine$os
diff --git a/libtecla-1.4.1/configure b/libtecla-1.4.1/configure
deleted file mode 100755
index feaa587..0000000
--- a/libtecla-1.4.1/configure
+++ /dev/null
@@ -1,1939 +0,0 @@
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-
-
-
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-
-
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-
-
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-
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- ac_dummy="$PATH"
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- # first if we set CC to just the basename; use the full file name.
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- ac_cv_prog_CC="$@"
- fi
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-fi
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-else
- echo "$ac_t""no" 1>&6
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-
- if test -z "$CC"; then
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- if test -n "$CC"; then
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- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
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- echo "$ac_t""no" 1>&6
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- test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
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-
-echo $ac_n "checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works""... $ac_c" 1>&6
-echo "configure:656: checking whether the C compiler ($CC $CFLAGS $LDFLAGS) works" >&5
-
-ac_ext=c
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-
-cat > conftest.$ac_ext << EOF
-
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- ac_cv_prog_cc_cross=yes
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- ac_cv_prog_cc_works=no
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-rm -fr conftest*
-ac_ext=c
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-
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-
-echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
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- ac_cv_prog_gcc=no
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-
-echo "$ac_t""$ac_cv_prog_gcc" 1>&6
-
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- GCC=
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-
-ac_test_CFLAGS="${CFLAGS+set}"
-ac_save_CFLAGS="$CFLAGS"
-CFLAGS=
-echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:731: checking whether ${CC-cc} accepts -g" >&5
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- echo 'void f(){}' > conftest.c
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- ac_cv_prog_cc_g=no
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-rm -f conftest*
-
-fi
-
-echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
-if test "$ac_test_CFLAGS" = set; then
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- else
- CFLAGS="-g"
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- if test "$GCC" = yes; then
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- else
- CFLAGS=
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-fi
-
-
-
-echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:765: checking whether ${MAKE-make} sets \${MAKE}" >&5
-set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- cat > conftestmake <<\EOF
-all:
- @echo 'ac_maketemp="${MAKE}"'
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- eval ac_cv_prog_make_${ac_make}_set=yes
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- eval ac_cv_prog_make_${ac_make}_set=no
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- SET_MAKE=
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- echo "$ac_t""no" 1>&6
- SET_MAKE="MAKE=${MAKE-make}"
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-
-
-
-echo $ac_n "checking whether ln -s works""... $ac_c" 1>&6
-echo "configure:794: checking whether ln -s works" >&5
-if eval "test \"`echo '$''{'ac_cv_prog_LN_S'+set}'`\" = set"; then
- echo $ac_n "(cached) $ac_c" 1>&6
-else
- rm -f conftestdata
-if ln -s X conftestdata 2>/dev/null
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- ac_cv_prog_LN_S="ln -s"
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- ac_cv_prog_LN_S=ln
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-fi
-LN_S="$ac_cv_prog_LN_S"
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-
-
-
-for ac_prog in gawk mawk nawk awk
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-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:821: checking for $ac_word" >&5
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- echo $ac_n "(cached) $ac_c" 1>&6
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- if test -n "$AWK"; then
- ac_cv_prog_AWK="$AWK" # Let the user override the test.
-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
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- break
- fi
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- echo "$ac_t""no" 1>&6
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-
-test -n "$AWK" && break
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-
-
-
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-echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:855: checking for $ac_word" >&5
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- echo $ac_n "(cached) $ac_c" 1>&6
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- if test -n "$RANLIB"; then
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-else
- IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS=":"
- ac_dummy="$PATH"
- for ac_dir in $ac_dummy; do
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- if test -f $ac_dir/$ac_word; then
- ac_cv_prog_RANLIB="ranlib"
- break
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- IFS="$ac_save_ifs"
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- echo "$ac_t""no" 1>&6
-fi
-
-
-
-ac_aux_dir=
-for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
- if test -f $ac_dir/install-sh; then
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- ac_install_sh="$ac_aux_dir/install-sh -c"
- break
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- ac_install_sh="$ac_aux_dir/install.sh -c"
- break
- fi
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- { echo "configure: error: can not find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." 1>&2; exit 1; }
-fi
-ac_config_guess=$ac_aux_dir/config.guess
-ac_config_sub=$ac_aux_dir/config.sub
-ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
-
-
-# Do some error checking and defaulting for the host and target type.
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-#
-# The rules are:
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-# 2. Host defaults to nonopt.
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-# 4. Target and build default to nonopt.
-# 5. If nonopt is not specified, then target and build default to host.
-
-# The aliases save the names the user supplied, while $host etc.
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-case $host---$target---$nonopt in
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-esac
-
-
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-
-
-fi
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-
-
-
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- echo $ac_n "(cached) $ac_c" 1>&6
-else
-
- KEPT_CFLAGS="$CFLAGS"
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- cat > conftest.$ac_ext <
-#include
-#include
-#include
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-int main() {
-
- (void) readdir_r(NULL, NULL, NULL);
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-else
-
- cat > conftest.$ac_ext <
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- fd_set fds;
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- cat conftest.$ac_ext >&5
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-
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-
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-echo $ac_n "checking for SysV pseudo-terminals""... $ac_c" 1>&6
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-else
-
- cat > conftest.$ac_ext <
-#include
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- char *name = ptsname(0);
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-
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-
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-
-fi
-
-
-
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-
-
-
-SHARED_ALT=""
-
-
-
-SHARED_CFLAGS=""
-
-
-
-LINK_SHARED=""
-
-
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- cat >> confdefs.h <<\EOF
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-
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- LINK_SHARED='ld -G -M $$(srcdir)/libtecla.map -o $$@ -h $$(@F) -z defs -i $$(LIB_OBJECTS) $$(LIBS) -lc'
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- gcc) CFLAGS="-I/usr/include $CFLAGS" ;;
- esac
- case $target in
- *sparc*) SHARED_CFLAGS="$SHARED_CFLAGS -xregs=no%appl"
- esac
- ;;
-*linux*)
- SHARED_EXT=".so.${MAJOR_VER}.${MINOR_VER}.${MICRO_VER}"
- SHARED_ALT=".so .so.${MAJOR_VER}"
-
-
- echo $ac_n "checking for --version-script in GNU ld""... $ac_c" 1>&6
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-
- if (echo 'void dummy(void) {return;}' > dummy.c; $CC -c -fpic dummy.c; \
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- rm -f dummy.c dummy.o dummy.so
-
-fi
-
-echo "$ac_t""$tecla_cv_gnu_ld_script" 1>&6
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- else
- VERSION_OPT=''
- fi
-
- LINK_SHARED='ld -o $$@ -soname libtecla$$(SUFFIX).so.'${MAJOR_VER}' -shared '$VERSION_OPT' $$(LIB_OBJECTS) $$(LIBS) -lc'
- SHARED_CFLAGS="-fpic"
- ;;
-*hpux*)
- SHARED_EXT=".${MAJOR_VER}"
- SHARED_ALT=".sl"
- LINK_SHARED='ld -b +h $$(@F) +k +vshlibunsats -o $$@ -c libtecla.map.opt $$(LIB_OBJECTS) $$(LIBS) -lc'
- SHARED_CFLAGS="+z"
- ;;
-*dec-osf*)
- cat >> confdefs.h <<\EOF
-#define _OSF_SOURCE 1
-EOF
-
- ;;
-esac
-
-
-if test "$GCC"_ = "yes"_ && test "$LINK_SHARED"_ != "_" ; then
- SHARED_CFLAGS="-fpic"
- case $target_os in
- sparc*solaris*) SHARED_CFLAGS="$SHARED_CFLAGS -mno-app-regs"
- esac
- LINK_SHARED="$LINK_SHARED `gcc -print-libgcc-file-name`"
-fi
-
-
-
-
-
-if test "$LINK_SHARED"_ != "_"; then
- TARGET_LIBS="static shared"
-else
- TARGET_LIBS="static"
- LINK_SHARED="@:"
-fi
-
-
-trap '' 1 2 15
-cat > confcache <<\EOF
-# This file is a shell script that caches the results of configure
-# tests run on this system so they can be shared between configure
-# scripts and configure runs. It is not useful on other systems.
-# If it contains results you don't want to keep, you may remove or edit it.
-#
-# By default, configure uses ./config.cache as the cache file,
-# creating it if it does not exist already. You can give configure
-# the --cache-file=FILE option to use a different cache file; that is
-# what configure does when it calls configure scripts in
-# subdirectories, so they share the cache.
-# Giving --cache-file=/dev/null disables caching, for debugging configure.
-# config.status only pays attention to the cache file if you give it the
-# --recheck option to rerun configure.
-#
-EOF
-# The following way of writing the cache mishandles newlines in values,
-# but we know of no workaround that is simple, portable, and efficient.
-# So, don't put newlines in cache variables' values.
-# Ultrix sh set writes to stderr and can't be redirected directly,
-# and sets the high bit in the cache file unless we assign to the vars.
-(set) 2>&1 |
- case `(ac_space=' '; set | grep ac_space) 2>&1` in
- *ac_space=\ *)
- # `set' does not quote correctly, so add quotes (double-quote substitution
- # turns \\\\ into \\, and sed turns \\ into \).
- sed -n \
- -e "s/'/'\\\\''/g" \
- -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
- ;;
- *)
- # `set' quotes correctly as required by POSIX, so do not add quotes.
- sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
- ;;
- esac >> confcache
-if cmp -s $cache_file confcache; then
- :
-else
- if test -w $cache_file; then
- echo "updating cache $cache_file"
- cat confcache > $cache_file
- else
- echo "not updating unwritable cache $cache_file"
- fi
-fi
-rm -f confcache
-
-trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
-
-test "x$prefix" = xNONE && prefix=$ac_default_prefix
-# Let make expand exec_prefix.
-test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
-
-# Any assignment to VPATH causes Sun make to only execute
-# the first set of double-colon rules, so remove it if not needed.
-# If there is a colon in the path, we need to keep it.
-if test "x$srcdir" = x.; then
- ac_vpsub='/^[ ]*VPATH[ ]*=[^:]*$/d'
-fi
-
-trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
-
-# Transform confdefs.h into DEFS.
-# Protect against shell expansion while executing Makefile rules.
-# Protect against Makefile macro expansion.
-cat > conftest.defs <<\EOF
-s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
-s%[ `~#$^&*(){}\\|;'"<>?]%\\&%g
-s%\[%\\&%g
-s%\]%\\&%g
-s%\$%$$%g
-EOF
-DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
-rm -f conftest.defs
-
-
-# Without the "./", some shells look in PATH for config.status.
-: ${CONFIG_STATUS=./config.status}
-
-echo creating $CONFIG_STATUS
-rm -f $CONFIG_STATUS
-cat > $CONFIG_STATUS </dev/null | sed 1q`:
-#
-# $0 $ac_configure_args
-#
-# Compiler output produced by configure, useful for debugging
-# configure, is in ./config.log if it exists.
-
-ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
-for ac_option
-do
- case "\$ac_option" in
- -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
- echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
- exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
- -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
- echo "$CONFIG_STATUS generated by autoconf version 2.13"
- exit 0 ;;
- -help | --help | --hel | --he | --h)
- echo "\$ac_cs_usage"; exit 0 ;;
- *) echo "\$ac_cs_usage"; exit 1 ;;
- esac
-done
-
-ac_given_srcdir=$srcdir
-
-trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
-EOF
-cat >> $CONFIG_STATUS < conftest.subs <<\\CEOF
-$ac_vpsub
-$extrasub
-s%@SHELL@%$SHELL%g
-s%@CFLAGS@%$CFLAGS%g
-s%@CPPFLAGS@%$CPPFLAGS%g
-s%@CXXFLAGS@%$CXXFLAGS%g
-s%@FFLAGS@%$FFLAGS%g
-s%@DEFS@%$DEFS%g
-s%@LDFLAGS@%$LDFLAGS%g
-s%@LIBS@%$LIBS%g
-s%@exec_prefix@%$exec_prefix%g
-s%@prefix@%$prefix%g
-s%@program_transform_name@%$program_transform_name%g
-s%@bindir@%$bindir%g
-s%@sbindir@%$sbindir%g
-s%@libexecdir@%$libexecdir%g
-s%@datadir@%$datadir%g
-s%@sysconfdir@%$sysconfdir%g
-s%@sharedstatedir@%$sharedstatedir%g
-s%@localstatedir@%$localstatedir%g
-s%@libdir@%$libdir%g
-s%@includedir@%$includedir%g
-s%@oldincludedir@%$oldincludedir%g
-s%@infodir@%$infodir%g
-s%@mandir@%$mandir%g
-s%@MAJOR_VER@%$MAJOR_VER%g
-s%@MINOR_VER@%$MINOR_VER%g
-s%@MICRO_VER@%$MICRO_VER%g
-s%@CC@%$CC%g
-s%@SET_MAKE@%$SET_MAKE%g
-s%@LN_S@%$LN_S%g
-s%@AWK@%$AWK%g
-s%@RANLIB@%$RANLIB%g
-s%@host@%$host%g
-s%@host_alias@%$host_alias%g
-s%@host_cpu@%$host_cpu%g
-s%@host_vendor@%$host_vendor%g
-s%@host_os@%$host_os%g
-s%@target@%$target%g
-s%@target_alias@%$target_alias%g
-s%@target_cpu@%$target_cpu%g
-s%@target_vendor@%$target_vendor%g
-s%@target_os@%$target_os%g
-s%@build@%$build%g
-s%@build_alias@%$build_alias%g
-s%@build_cpu@%$build_cpu%g
-s%@build_vendor@%$build_vendor%g
-s%@build_os@%$build_os%g
-s%@CPP@%$CPP%g
-s%@TARGETS@%$TARGETS%g
-s%@SHARED_EXT@%$SHARED_EXT%g
-s%@SHARED_ALT@%$SHARED_ALT%g
-s%@SHARED_CFLAGS@%$SHARED_CFLAGS%g
-s%@LINK_SHARED@%$LINK_SHARED%g
-s%@TARGET_LIBS@%$TARGET_LIBS%g
-
-CEOF
-EOF
-
-cat >> $CONFIG_STATUS <<\EOF
-
-# Split the substitutions into bite-sized pieces for seds with
-# small command number limits, like on Digital OSF/1 and HP-UX.
-ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
-ac_file=1 # Number of current file.
-ac_beg=1 # First line for current file.
-ac_end=$ac_max_sed_cmds # Line after last line for current file.
-ac_more_lines=:
-ac_sed_cmds=""
-while $ac_more_lines; do
- if test $ac_beg -gt 1; then
- sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
- else
- sed "${ac_end}q" conftest.subs > conftest.s$ac_file
- fi
- if test ! -s conftest.s$ac_file; then
- ac_more_lines=false
- rm -f conftest.s$ac_file
- else
- if test -z "$ac_sed_cmds"; then
- ac_sed_cmds="sed -f conftest.s$ac_file"
- else
- ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
- fi
- ac_file=`expr $ac_file + 1`
- ac_beg=$ac_end
- ac_end=`expr $ac_end + $ac_max_sed_cmds`
- fi
-done
-if test -z "$ac_sed_cmds"; then
- ac_sed_cmds=cat
-fi
-EOF
-
-cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF
-for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
- # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
- case "$ac_file" in
- *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
- ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
- *) ac_file_in="${ac_file}.in" ;;
- esac
-
- # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
-
- # Remove last slash and all that follows it. Not all systems have dirname.
- ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
- if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
- # The file is in a subdirectory.
- test ! -d "$ac_dir" && mkdir "$ac_dir"
- ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
- # A "../" for each directory in $ac_dir_suffix.
- ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
- else
- ac_dir_suffix= ac_dots=
- fi
-
- case "$ac_given_srcdir" in
- .) srcdir=.
- if test -z "$ac_dots"; then top_srcdir=.
- else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
- /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
- *) # Relative path.
- srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
- top_srcdir="$ac_dots$ac_given_srcdir" ;;
- esac
-
-
- echo creating "$ac_file"
- rm -f "$ac_file"
- configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
- case "$ac_file" in
- *Makefile*) ac_comsub="1i\\
-# $configure_input" ;;
- *) ac_comsub= ;;
- esac
-
- ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
- sed -e "$ac_comsub
-s%@configure_input@%$configure_input%g
-s%@srcdir@%$srcdir%g
-s%@top_srcdir@%$top_srcdir%g
-" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
-fi; done
-rm -f conftest.s*
-
-EOF
-cat >> $CONFIG_STATUS <> $CONFIG_STATUS <<\EOF
-
-exit 0
-EOF
-chmod +x $CONFIG_STATUS
-rm -fr confdefs* $ac_clean_files
-test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
-
diff --git a/libtecla-1.4.1/configure.in b/libtecla-1.4.1/configure.in
deleted file mode 100644
index 3b083b9..0000000
--- a/libtecla-1.4.1/configure.in
+++ /dev/null
@@ -1,412 +0,0 @@
-dnl This is the input file which autoconf uses to construct a
-dnl "configure" script for the tecla library. It is a bourne shell
-dnl script which autoconf pre-processes with the m4 preprocessor to
-dnl expand autoconf-defined m4 macros such as AC_INIT(). The
-dnl following line just initializes autoconf. Autoconf interprets the
-dnl single argument as the name of an arbitrary file, which it uses to
-dnl ensure that it is being run correctly from the directory which
-dnl contains the libtecla source code.
-
-AC_INIT(getline.c)
-
-dnl Here we set the major version number of the tecla library.
-dnl Incrementing this number implies that a change has been made to
-dnl the library's public interface, which makes it binary incompatible
-dnl with programs that were linked with previous shared versions of
-dnl the tecla library. Incompatible changes of this type should be
-dnl avoided at all costs, so it is hoped that the major version number
-dnl won't ever have to change. The major version number must be a
-dnl small integer number, preferably a single numeric digit.
-
-AC_SUBST(MAJOR_VER)
-MAJOR_VER="1"
-
-dnl Set the minor version number of the tecla library. This number
-dnl should be incremented by one whenever additional functionality,
-dnl such as new functions or modules, are added to the library. The
-dnl idea is that a program that was linked with a shared library of
-dnl the same major version number, but a lower minor version number,
-dnl will continue to function when the run-time loader links it
-dnl against the updated version. The minor version number must be a
-dnl small integer number, which should be reset to 0 whenever the
-dnl major version number is incremented.
-
-AC_SUBST(MINOR_VER)
-MINOR_VER="4"
-
-dnl Set the micro version number of the tecla library. This is
-dnl incremented whenever modifications to the library are made which
-dnl make no changes to the public interface, but which fix bugs and/or
-dnl improve the behind-the-scenes implementation. The micro version
-dnl number should be reset to 0 whenever the minor version number is
-dnl incremented. The micro version number must be a small integer
-dnl number.
-
-AC_SUBST(MICRO_VER)
-MICRO_VER="1"
-
-dnl The AC_PROG_CC line looks for a C compiler, and if gcc is chosen,
-dnl sets the $GCC shell variable to "yes". Make sure that CFLAGS is
-dnl set to something first, to prevent AC_PROG_CC from substituting -g
-dnl for the optimization level.
-
-CFLAGS="$CFLAGS"
-AC_PROG_CC
-
-dnl Apparently not all implementations of the 'make' command define
-dnl the MAKE variable. The following directive creates a variable
-dnl called SET_MAKE which when expanded in a makefile is either empty
-dnl if the local 'make' command was found to define the MAKE variable,
-dnl or contains an assignment which will give the MAKE variable the
-dnl value 'make'.
-
-AC_PROG_MAKE_SET
-
-dnl The following directive causes autoconf to see if symbolic links
-dnl are supported on the current filesystem. If so, it sets the
-dnl variable LN_S to "ln -s". Otherwise it sets LN_S to just "ln".
-dnl This allows us to create symbolic links where possible, but falls
-dnl back to creating hard links where symbolic links aren't available.
-
-AC_PROG_LN_S
-
-dnl The following macro searches for the best implementation of awk
-dnl on the host system, and records it in the AWK shell variable.
-
-AC_PROG_AWK
-
-dnl If ranlib is needed on the target system, the RANLIB make variable
-dnl is set to ranlib. Otherwise it is set to :, which is the do-nothing
-dnl command of the bourne shell.
-
-AC_PROG_RANLIB
-
-dnl The following directive tells autoconf to figure out the target
-dnl system type and assign a canonical name for this to the $target
-dnl shell variable. This is used below in the target-specific case
-dnl statement.
-
-AC_CANONICAL_SYSTEM
-
-dnl In early versions of Solaris, some libraries are in /usr/ccs/lib,
-dnl where gcc doesn't look. The tests below for the curses library
-dnl would thus fail without this directory being added to the search
-dnl path. We thus add it here before the tests. Note that in the
-dnl following, since [ and ] are m4 quotes, and m4 will remove the
-dnl outermost quotes when it processes this file, we have to double
-dnl them up here to get [0-6] to appear in the output configure
-dnl script.
-
-case $target in
-*-sun-solaris2.[[0-6]]|*-sun-solaris2.[[0-6]].*)
- LIBS="$LIBS -L/usr/ccs/lib"
- ;;
-esac
-
-dnl The following lines look for terminfo functions in the normal
-dnl curses library. If not found, they are searched for in the GNU
-dnl ncurses library. If the terminfo functions still aren't found,
-dnl then termcap functions are searched for in the curses library. If
-dnl either set of functions is found, the corresponding variable
-dnl USE_TERMINFO or USE_TERMCAP is arranged to be defined in CFLAGS,
-dnl via the exported DEFINES shell variable, and the library in which
-dnl they were found is appended to the LIBS shell variable.
-
-AC_CHECK_LIB(curses, tigetstr, [
- AC_DEFINE(USE_TERMINFO)
- LIBS="$LIBS -lcurses"
-], [AC_CHECK_LIB(ncurses, tigetstr, [
- AC_DEFINE(USE_TERMINFO)
- LIBS="$LIBS -lncurses"
-], [AC_CHECK_LIB(curses, tgetstr, [
- AC_DEFINE(USE_TERMCAP)
- LIBS="$LIBS -lcurses"
- AC_CHECK_HEADER(termcap.h, AC_DEFINE(HAVE_TERMCAP_H))
-])])])
-
-dnl Some systems don't have term.h, some systems squirrel it away
-dnl in an ncurses sub-directory of the system include directory.
-dnl If term.h exists in the normal location, arrange for HAVE_TERM_H
-dnl to be added to CFLAGS in the Makefile, by appending it to the
-dnl DEFINES shell variable. Otherwise, if it exists under an ncurses
-dnl sub-directory, arrange for HAVE_NCURSES_TERM_H to be set instead.
-dnl If it isn't found in either of these places, neither of these
-dnl variables is set, so term.h just doesn't get included.
-
-AC_CHECK_HEADER(term.h, AC_DEFINE(HAVE_TERM_H), [
- AC_CHECK_HEADER(ncurses/term.h, AC_DEFINE(HAVE_NCURSES_TERM_H))
-])
-
-dnl Do the same search for curses.h.
-
-AC_CHECK_HEADER(curses.h, AC_DEFINE(HAVE_CURSES_H), [
- AC_CHECK_HEADER(ncurses/curses.h, AC_DEFINE(HAVE_NCURSES_CURSES_H))
-])
-
-dnl The following variable lists the targets that will be created if
-dnl the user runs make without any arguments. Initially we assume
-dnl that we can create both the normal and the reentrant versions
-dnl of the library.
-
-AC_SUBST(TARGETS)
-TARGETS="normal reentrant"
-
-dnl Check for reentrant functions by attempting to compile and link a
-dnl temporary program which calls them, being sure to include the
-dnl appropriate headers and define _POSIX_C_SOURCE, just in case any
-dnl of the functions are defined as macros. In the following,
-dnl AC_CACHE_CHECK outputs the message "checking for reentrant
-dnl functions". If this check has been done before, it assigns the
-dnl cached yes/no value to tecla_cv_reentrant. Otherwise it uses
-dnl AC_TRY_LINK() to attempt to compile and link the specified dummy
-dnl program, and sets tecla_cv_reentrant to yes or no, depending on
-dnl whether this succeeds. Finally it caches the value of
-dnl tecla_cv_reentrant in the file config.cache, and writes "yes" or
-dnl "no" to the terminal.
-
-AC_CACHE_CHECK(for reentrant functions, tecla_cv_reentrant, [
- KEPT_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=199506L"
- AC_TRY_LINK([
-#include
-#include
-#include
-#include
-#include
- ], [
- (void) readdir_r(NULL, NULL, NULL);
- (void) getpwuid_r(geteuid(), NULL, NULL, 0, NULL);
- (void) getpwnam_r(NULL, NULL, NULL, 0, NULL);
- ], tecla_cv_reentrant=yes, tecla_cv_reentrant=no)
- CFLAGS="$KEPT_CFLAGS"
-])
-
-dnl If the necessary reentrant functions weren't found to be
-dnl available, default to only compiling the non-reentrant version of
-dnl the library.
-
-if test $tecla_cv_reentrant = no; then
- TARGETS="normal"
-fi
-
-dnl Check for the select system call with the normal arguments,
-dnl by attempting to compile and link a temporary program which
-dnl calls it, being sure to include the appropriate headers.
-dnl In the following, AC_CACHE_CHECK outputs the message
-dnl "checking for select system call". If this check has been done
-dnl before, it assigns the cached yes/no value to tecla_cv_select.
-dnl Otherwise it uses AC_TRY_LINK() to attempt to compile and link
-dnl the specified dummy program, and sets tecla_cv_select to yes
-dnl or no, depending on whether this succeeds. Finally it caches
-dnl the value of tecla_cv_select in the file config.cache, and
-dnl writes "yes" or "no" to the terminal.
-
-AC_CACHE_CHECK(for select system call, tecla_cv_select, [
- AC_TRY_LINK([
-#ifdef HAVE_SELECT_H
-#include
-#endif
-#include
-#include
-#include
- ], [
- fd_set fds;
- int nready;
- FD_ZERO(&fds);
- FD_SET(1, &fds);
- nready = select(2, &fds, &fds, &fds, NULL);
- ], tecla_cv_select=yes, tecla_cv_select=no)
-])
-
-dnl If the select function was available, arrange for HAVE_SELECT to
-dnl be defined by CFLAGS.
-
-if test $tecla_cv_select = yes; then
- AC_DEFINE(HAVE_SELECT)
-fi
-
-dnl Check if this system supports the system V pseudo terminal interface.
-
-AC_CACHE_CHECK(for SysV pseudo-terminals, tecla_cv_sysv_pty, [
- AC_TRY_LINK([
-#include
-#include
-#include
- ], [
- char *name = ptsname(0);
- int i1 = grantpt(0);
- int i2 = unlockpt(0);
- int i3 = ioctl(0, I_PUSH, "ptem");
- return 0;
- ], tecla_cv_sysv_pty=yes, tecla_cv_sysv_pty=no)
-])
-
-dnl If the system-V pseudo-terminal interface is available, arrange
-dnl for HAVE_SYSV_PTY to be defined by CFLAGS.
-
-if test $tecla_cv_sysv_pty = yes; then
- AC_DEFINE(HAVE_SYSV_PTY)
-fi
-
-dnl The following variable contains the extension to append to
-dnl "libtecla" and "libtecla_r" when creating shared libraries on the
-dnl target platform. This is system dependent and is ignored if
-dnl LINK_SHARED remains an empty string. On most platforms that
-dnl support shared libaries, this will be .so.$MAJOR_VER, where
-dnl MAJOR_VER is the major version number described above, which on
-dnl some systems, tells the run-time loader if the program being
-dnl loaded is binary compatible with a given version of the library
-dnl (see the discussion of MAJOR_VER near the top of this file).
-dnl The following empty default can be overriden on a system by system
-dnl basis later in this file.
-
-AC_SUBST(SHARED_EXT)
-SHARED_EXT=""
-
-dnl When a shared library is installed with the extension $SHARED_EXT,
-dnl you can optionally produce other copies of this library with
-dnl different extensions. This is done using symbolic or hard links,
-dnl depending on what is available on the current filesystem, and the
-dnl extensions to use for these links are listed in the following
-dnl variable, separated by spaces. The following empty default can be
-dnl overriden on a system by system basis later in this file.
-
-AC_SUBST(SHARED_ALT)
-SHARED_ALT=""
-
-dnl The following variable lists extra compilation flags needed to
-dnl create object files that can be included in shared libraries.
-dnl Normally one would include a flag to tell the C compiler to
-dnl compile position-independent code. This option commonly includes
-dnl the acronym 'pic'.
-
-AC_SUBST(SHARED_CFLAGS)
-SHARED_CFLAGS=""
-
-dnl On systems that support shared libraries, the following variable
-dnl provides the command needed to make a shared library. In this
-dnl variable, $$@ will be replaced with the name of the shared
-dnl library, $$(LIB_OBJECTS) will be replaced with a space separated
-dnl list of the object files that are to be included in the library,
-dnl and libtecla$$(SUFFIX) will be the name of the library being
-dnl built, minus the system-specific extension (eg. libtecla or
-dnl libtecla_r). If LINK_SHARED is left as an empty string, shared
-dnl library creation will not attempted. If your system supports
-dnl shared library creation, you should override the default value of
-dnl this variable in the target-specific case statement later in this
-dnl file.
-
-AC_SUBST(LINK_SHARED)
-LINK_SHARED=""
-
-dnl The following bourne shell case statement is where system
-dnl dependencies can be added. In particular, if your system supports
-dnl shared library creation, the following switch is the place to
-dnl configure it. To do so you will first need to find out what target
-dnl type was just assigned by the AC_CANONICAL_SYSTEM macro executed
-dnl previously. The target type of your current system can be
-dnl determined by cd'ing to the top level directory of the tecla
-dnl distribution, and typing the command "sh config.guess". This will
-dnl report what autoconf thinks the system type is. Note that this
-dnl will be very specific, so if you know that the configuration
-dnl parameters that you are about to provide apply to different
-dnl versions of the current system type, you can express this in the
-dnl case statement by using a wild-card in place of the version
-dnl number, or by using an | alternation to list one or more version
-dnl names. Beware that autoconf uses [] as quote characters, so if you
-dnl want to use a regexp character range like [a-z], you should write
-dnl this as [[a-z]].
-
-case $target in
-*solaris*)
- AC_DEFINE(__EXTENSIONS__)
- SHARED_EXT=".so.${MAJOR_VER}"
- SHARED_ALT=".so"
- LINK_SHARED='ld -G -M $$(srcdir)/libtecla.map -o $$@ -h $$(@F) -z defs -i $$(LIB_OBJECTS) $$(LIBS) -lc'
- SHARED_CFLAGS="-Kpic"
- case $CC in
- */cc|cc) SHARED_CFLAGS="$SHARED_CFLAGS -xstrconst" ;;
- gcc) CFLAGS="-I/usr/include $CFLAGS" ;;
- esac
- case $target in
- *sparc*) SHARED_CFLAGS="$SHARED_CFLAGS -xregs=no%appl"
- esac
- ;;
-*linux*)
- SHARED_EXT=".so.${MAJOR_VER}.${MINOR_VER}.${MICRO_VER}"
- SHARED_ALT=".so .so.${MAJOR_VER}"
-
-dnl See if the installed version of Gnu ld accepts version scripts.
-
- AC_CACHE_CHECK([for --version-script in GNU ld], tecla_cv_gnu_ld_script, [
- if (echo 'void dummy(void) {return;}' > dummy.c; $CC -c -fpic dummy.c; \
- ld -o dummy.so dummy.o -shared --version-script=$srcdir/libtecla.map) 1>&2 2>/dev/null; then
- tecla_cv_gnu_ld_script=yes
- else
- tecla_cv_gnu_ld_script=no
- fi
- rm -f dummy.c dummy.o dummy.so
- ])
- if test $tecla_cv_gnu_ld_script = yes; then
- VERSION_OPT='--version-script=$$(srcdir)/libtecla.map'
- else
- VERSION_OPT=''
- fi
-
- LINK_SHARED='ld -o $$@ -soname libtecla$$(SUFFIX).so.'${MAJOR_VER}' -shared '$VERSION_OPT' $$(LIB_OBJECTS) $$(LIBS) -lc'
- SHARED_CFLAGS="-fpic"
- ;;
-*hpux*)
- SHARED_EXT=".${MAJOR_VER}"
- SHARED_ALT=".sl"
- LINK_SHARED='ld -b +h $$(@F) +k +vshlibunsats -o $$@ -c libtecla.map.opt $$(LIB_OBJECTS) $$(LIBS) -lc'
- SHARED_CFLAGS="+z"
- ;;
-*dec-osf*)
- AC_DEFINE(_OSF_SOURCE)
- ;;
-esac
-
-dnl The following statement checks to see if the GNU C compiler has
-dnl been chosen instead of the normal compiler of the host operating
-dnl system. If it has, and shared library creation has been
-dnl configured, it replaces the shared-library-specific C compilation
-dnl flags with those supported by gcc. Also append the gcc run-time
-dnl library to the shared library link line.
-
-if test "$GCC"_ = "yes"_ && test "$LINK_SHARED"_ != "_" ; then
- SHARED_CFLAGS="-fpic"
- case $target_os in
- sparc*solaris*) SHARED_CFLAGS="$SHARED_CFLAGS -mno-app-regs"
- esac
- LINK_SHARED="$LINK_SHARED `gcc -print-libgcc-file-name`"
-fi
-
-dnl The following variable will list which types of libraries,
-dnl "static", and possibly "shared", are to be created and installed.
-
-AC_SUBST(TARGET_LIBS)
-
-dnl If shared library creation has been configured, add shared
-dnl libraries to the list of libraries to be built.
-
-if test "$LINK_SHARED"_ != "_"; then
- TARGET_LIBS="static shared"
-else
- TARGET_LIBS="static"
- LINK_SHARED="@:"
-fi
-
-dnl The following directive must always be the last line of any
-dnl autoconf script. It causes autoconf to create the configure
-dnl script, which for each argument of AC_OUTPUT, will look for a
-dnl filename formed by appending ".in" to the argument, preprocess
-dnl that file, replacing @VAR@ directives with the corresponding value
-dnl of the specified shell variable VAR, as set above in this file,
-dnl and write the resulting output to the filename given in the
-dnl argument. Note that only shell variables that were exported above
-dnl with the AC_SUBST() directive will be substituted in @VAR@
-dnl directives (some macros like AC_PROG_CC also call AC_SUBST for you
-dnl for the variables that they output).
-
-AC_OUTPUT(Makefile)
diff --git a/libtecla-1.4.1/cplfile.c b/libtecla-1.4.1/cplfile.c
deleted file mode 100644
index 73eef1d..0000000
--- a/libtecla-1.4.1/cplfile.c
+++ /dev/null
@@ -1,874 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-/*
- * Standard includes.
- */
-#include
-#include
-#include
-#include
-#include
-#include
-
-/*
- * Local includes.
- */
-#include "libtecla.h"
-#include "direader.h"
-#include "homedir.h"
-#include "pathutil.h"
-#include "cplfile.h"
-
-/*
- * Set the maximum length allowed for usernames.
- * names.
- */
-#define USR_LEN 100
-
-/*
- * Set the maximum length allowed for environment variable names.
- */
-#define ENV_LEN 100
-
-/*
- * Set the max length of the error-reporting string. There is no point
- * in this being longer than the width of a typical terminal window.
- * In composing error messages, I have assumed that this number is
- * at least 80, so you don't decrease it below this number.
- */
-#define ERRLEN 200
-
-/*
- * The resources needed to complete a filename are maintained in objects
- * of the following type.
- */
-struct CompleteFile {
- DirReader *dr; /* A directory reader */
- HomeDir *home; /* A home directory expander */
- PathName *path; /* The buffer in which to accumulate the path */
- PathName *buff; /* A pathname work buffer */
- char usrnam[USR_LEN+1]; /* The buffer used when reading the names of */
- /* users. */
- char envnam[ENV_LEN+1]; /* The buffer used when reading the names of */
- /* environment variables. */
- char errmsg[ERRLEN+1]; /* The error-report buffer */
-};
-
-static int cf_expand_home_dir(CompleteFile *cf, const char *user);
-static int cf_complete_username(CompleteFile *cf, WordCompletion *cpl,
- const char *prefix, const char *line,
- int word_start, int word_end, int escaped);
-static HOME_DIR_FN(cf_homedir_callback);
-static int cf_complete_entry(CompleteFile *cf, WordCompletion *cpl,
- const char *line, int word_start, int word_end,
- int escaped, CplCheckFn *check_fn,
- void *check_data);
-static char *cf_read_name(CompleteFile *cf, const char *type,
- const char *string, int slen,
- char *nambuf, int nammax);
-static int cf_prepare_suffix(CompleteFile *cf, const char *suffix,
- int add_escapes);
-
-/*
- * A stack based object of the following type is used to pass data to the
- * cf_homedir_callback() function.
- */
-typedef struct {
- CompleteFile *cf; /* The file-completion resource object */
- WordCompletion *cpl; /* The string-completion rsource object */
- const char *prefix; /* The username prefix to be completed */
- const char *line; /* The line from which the prefix was extracted */
- int word_start; /* The index in line[] of the start of the username */
- int word_end; /* The index in line[] following the end of the prefix */
- int escaped; /* If true, add escapes to the completion suffixes */
-} CfHomeArgs;
-
-/*.......................................................................
- * Create a new file-completion object.
- *
- * Output:
- * return CompleteFile * The new object, or NULL on error.
- */
-CompleteFile *_new_CompleteFile(void)
-{
- CompleteFile *cf; /* The object to be returned */
-/*
- * Allocate the container.
- */
- cf = (CompleteFile *) malloc(sizeof(CompleteFile));
- if(!cf) {
- fprintf(stderr, "_new_CompleteFile: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to _del_CompleteFile().
- */
- cf->dr = NULL;
- cf->home = NULL;
- cf->path = NULL;
- cf->buff = NULL;
- cf->usrnam[0] = '\0';
- cf->envnam[0] = '\0';
- cf->errmsg[0] = '\0';
-/*
- * Create the object that is used for reading directories.
- */
- cf->dr = _new_DirReader();
- if(!cf->dr)
- return _del_CompleteFile(cf);
-/*
- * Create the object that is used to lookup home directories.
- */
- cf->home = _new_HomeDir();
- if(!cf->home)
- return _del_CompleteFile(cf);
-/*
- * Create the buffer in which the completed pathname is accumulated.
- */
- cf->path = _new_PathName();
- if(!cf->path)
- return _del_CompleteFile(cf);
-/*
- * Create a pathname work buffer.
- */
- cf->buff = _new_PathName();
- if(!cf->buff)
- return _del_CompleteFile(cf);
- return cf;
-}
-
-/*.......................................................................
- * Delete a file-completion object.
- *
- * Input:
- * cf CompleteFile * The object to be deleted.
- * Output:
- * return CompleteFile * The deleted object (always NULL).
- */
-CompleteFile *_del_CompleteFile(CompleteFile *cf)
-{
- if(cf) {
- cf->dr = _del_DirReader(cf->dr);
- cf->home = _del_HomeDir(cf->home);
- cf->path = _del_PathName(cf->path);
- cf->buff = _del_PathName(cf->buff);
- free(cf);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Look up the possible completions of the incomplete filename that
- * lies between specified indexes of a given command-line string.
- *
- * Input:
- * cpl WordCompletion * The object in which to record the completions.
- * cf CompleteFile * The filename-completion resource object.
- * line const char * The string containing the incomplete filename.
- * word_start int The index of the first character in line[]
- * of the incomplete filename.
- * word_end int The index of the character in line[] that
- * follows the last character of the incomplete
- * filename.
- * escaped int If true, backslashes in line[] are
- * interpreted as escaping the characters
- * that follow them, and any spaces, tabs,
- * backslashes, or wildcard characters in the
- * returned suffixes will be similarly escaped.
- * If false, backslashes will be interpreted as
- * literal parts of the file name, and no
- * backslashes will be added to the returned
- * suffixes.
- * check_fn CplCheckFn * If not zero, this argument specifies a
- * function to call to ask whether a given
- * file should be included in the list
- * of completions.
- * check_data void * Anonymous data to be passed to check_fn().
- * Output:
- * return int 0 - OK.
- * 1 - Error. A description of the error can be
- * acquired by calling _cf_last_error(cf).
- */
-int _cf_complete_file(WordCompletion *cpl, CompleteFile *cf,
- const char *line, int word_start, int word_end,
- int escaped, CplCheckFn *check_fn, void *check_data)
-{
- const char *lptr; /* A pointer into line[] */
- int nleft; /* The number of characters still to be processed */
- /* in line[]. */
-/*
- * Check the arguments.
- */
- if(!cpl || !cf || !line || word_end < word_start) {
- if(cf)
- strcpy(cf->errmsg, "_cf_complete_file: Invalid arguments");
- return 1;
- };
-/*
- * Clear the buffer in which the filename will be constructed.
- */
- _pn_clear_path(cf->path);
-/*
- * How many characters are to be processed?
- */
- nleft = word_end - word_start;
-/*
- * Get a pointer to the start of the incomplete filename.
- */
- lptr = line + word_start;
-/*
- * If the first character is a tilde, then perform home-directory
- * interpolation.
- */
- if(nleft > 0 && *lptr == '~') {
- int slen;
- if(!cf_read_name(cf, "User", ++lptr, --nleft, cf->usrnam, USR_LEN))
- return 1;
-/*
- * Advance over the username in the input line.
- */
- slen = strlen(cf->usrnam);
- lptr += slen;
- nleft -= slen;
-/*
- * If we haven't hit the end of the input string then we have a complete
- * username to translate to the corresponding home directory.
- */
- if(nleft > 0) {
- if(cf_expand_home_dir(cf, cf->usrnam))
- return 1;
-/*
- * ~user and ~ are usually followed by a directory separator to
- * separate them from the file contained in the home directory.
- * If the home directory is the root directory, then we don't want
- * to follow the home directory by a directory separator, so we should
- * skip over it so that it doesn't get copied into the filename.
- */
- if(strcmp(cf->path->name, FS_ROOT_DIR) == 0 &&
- strncmp(lptr, FS_DIR_SEP, FS_DIR_SEP_LEN) == 0) {
- lptr += FS_DIR_SEP_LEN;
- nleft -= FS_DIR_SEP_LEN;
- };
-/*
- * If we have reached the end of the input string, then the username
- * may be incomplete, and we should attempt to complete it.
- */
- } else {
-/*
- * Look up the possible completions of the username.
- */
- return cf_complete_username(cf, cpl, cf->usrnam, line, word_start+1,
- word_end, escaped);
- };
- };
-/*
- * Copy the rest of the path, stopping to expand $envvar expressions
- * where encountered.
- */
- while(nleft > 0) {
- int seglen; /* The length of the next segment to be copied */
-/*
- * Find the length of the next segment to be copied, stopping if an
- * unescaped '$' is seen, or the end of the path is reached.
- */
- for(seglen=0; seglen < nleft; seglen++) {
- int c = lptr[seglen];
- if(escaped && c == '\\')
- seglen++;
- else if(c == '$')
- break;
-/*
- * We will be completing the last component of the file name,
- * so whenever a directory separator is seen, assume that it
- * might be the start of the last component, and mark the character
- * that follows it as the start of the name that is to be completed.
- */
- if(nleft >= FS_DIR_SEP_LEN &&
- strncmp(lptr + seglen, FS_DIR_SEP, FS_DIR_SEP_LEN)==0) {
- word_start = (lptr + seglen) - line + FS_DIR_SEP_LEN;
- };
- };
-/*
- * We have reached either the end of the filename or the start of
- * $environment_variable expression. Record the newly checked
- * segment of the filename in the output filename, removing
- * backslash-escapes where needed.
- */
- if(_pn_append_to_path(cf->path, lptr, seglen, escaped) == NULL) {
- strcpy(cf->errmsg, "Insufficient memory to complete filename");
- return 1;
- };
- lptr += seglen;
- nleft -= seglen;
-/*
- * If the above loop finished before we hit the end of the filename,
- * then this was because an unescaped $ was seen. In this case, interpolate
- * the value of the environment variable that follows it into the output
- * filename.
- */
- if(nleft > 0) {
- char *value; /* The value of the environment variable */
- int vlen; /* The length of the value string */
- int nlen; /* The length of the environment variable name */
-/*
- * Read the name of the environment variable.
- */
- if(!cf_read_name(cf, "Environment", ++lptr, --nleft, cf->envnam, ENV_LEN))
- return 1;
-/*
- * Advance over the environment variable name in the input line.
- */
- nlen = strlen(cf->envnam);
- lptr += nlen;
- nleft -= nlen;
-/*
- * Get the value of the environment variable.
- */
- value = getenv(cf->envnam);
- if(!value) {
- const char *fmt = "Unknown environment variable: %.*s";
- sprintf(cf->errmsg, fmt, ERRLEN - strlen(fmt), cf->envnam);
- return 1;
- };
- vlen = strlen(value);
-/*
- * If we are at the start of the filename and the first character of the
- * environment variable value is a '~', attempt home-directory
- * interpolation.
- */
- if(cf->path->name[0] == '\0' && value[0] == '~') {
- if(!cf_read_name(cf, "User", value+1, vlen-1, cf->usrnam, USR_LEN) ||
- cf_expand_home_dir(cf, cf->usrnam))
- return 1;
-/*
- * If the home directory is the root directory, and the ~usrname expression
- * was followed by a directory separator, prevent the directory separator
- * from being appended to the root directory by skipping it in the
- * input line.
- */
- if(strcmp(cf->path->name, FS_ROOT_DIR) == 0 &&
- strncmp(lptr, FS_DIR_SEP, FS_DIR_SEP_LEN) == 0) {
- lptr += FS_DIR_SEP_LEN;
- nleft -= FS_DIR_SEP_LEN;
- };
- } else {
-/*
- * Append the value of the environment variable to the output path.
- */
- if(_pn_append_to_path(cf->path, value, strlen(value), escaped)==NULL) {
- strcpy(cf->errmsg, "Insufficient memory to complete filename");
- return 1;
- };
-/*
- * Prevent extra directory separators from being added.
- */
- if(nleft >= FS_DIR_SEP_LEN &&
- strcmp(cf->path->name, FS_ROOT_DIR) == 0 &&
- strncmp(lptr, FS_DIR_SEP, FS_DIR_SEP_LEN) == 0) {
- lptr += FS_DIR_SEP_LEN;
- nleft -= FS_DIR_SEP_LEN;
- } else if(vlen > FS_DIR_SEP_LEN &&
- strcmp(value + vlen - FS_DIR_SEP_LEN, FS_DIR_SEP)==0) {
- cf->path->name[vlen-FS_DIR_SEP_LEN] = '\0';
- };
- };
-/*
- * If adding the environment variable didn't form a valid directory,
- * we can't complete the line, since there is no way to separate append
- * a partial filename to an environment variable reference without
- * that appended part of the name being seen later as part of the
- * environment variable name. Thus if the currently constructed path
- * isn't a directory, quite now with no completions having been
- * registered.
- */
- if(!_pu_path_is_dir(cf->path->name))
- return 0;
-/*
- * For the reasons given above, if we have reached the end of the filename
- * with the expansion of an environment variable, the only allowed
- * completion involves the addition of a directory separator.
- */
- if(nleft == 0) {
- if(cpl_add_completion(cpl, line, lptr-line, word_end, FS_DIR_SEP,
- "", "")) {
- strncpy(cf->errmsg, cpl_last_error(cpl), ERRLEN);
- cf->errmsg[ERRLEN] = '\0';
- return 1;
- };
- return 0;
- };
- };
- };
-/*
- * Complete the filename if possible.
- */
- return cf_complete_entry(cf, cpl, line, word_start, word_end, escaped,
- check_fn, check_data);
-}
-
-/*.......................................................................
- * Return a description of the last path-completion error that occurred.
- *
- * Input:
- * cf CompleteFile * The path-completion resource object.
- * Output:
- * return const char * The description of the last error.
- */
-const char *_cf_last_error(CompleteFile *cf)
-{
- return cf ? cf->errmsg : "NULL CompleteFile argument";
-}
-
-/*.......................................................................
- * Lookup the home directory of the specified user, or the current user
- * if no name is specified, appending it to output pathname.
- *
- * Input:
- * cf CompleteFile * The pathname completion resource object.
- * user const char * The username to lookup, or "" to lookup the
- * current user.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int cf_expand_home_dir(CompleteFile *cf, const char *user)
-{
-/*
- * Attempt to lookup the home directory.
- */
- const char *home_dir = _hd_lookup_home_dir(cf->home, user);
-/*
- * Failed?
- */
- if(!home_dir) {
- strncpy(cf->errmsg, _hd_last_home_dir_error(cf->home), ERRLEN);
- cf->errmsg[ERRLEN] = '\0';
- return 1;
- };
-/*
- * Append the home directory to the pathname string.
- */
- if(_pn_append_to_path(cf->path, home_dir, -1, 0) == NULL) {
- strcpy(cf->errmsg, "Insufficient memory for home directory expansion");
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Lookup and report all completions of a given username prefix.
- *
- * Input:
- * cf CompleteFile * The filename-completion resource object.
- * cpl WordCompletion * The object in which to record the completions.
- * prefix const char * The prefix of the usernames to lookup.
- * line const char * The command-line in which the username appears.
- * word_start int The index within line[] of the start of the
- * username that is being completed.
- * word_end int The index within line[] of the character which
- * follows the incomplete username.
- * escaped int True if the completions need to have special
- * characters escaped.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int cf_complete_username(CompleteFile *cf, WordCompletion *cpl,
- const char *prefix, const char *line,
- int word_start, int word_end, int escaped)
-{
-/*
- * Set up a container of anonymous arguments to be sent to the
- * username-lookup iterator.
- */
- CfHomeArgs args;
- args.cf = cf;
- args.cpl = cpl;
- args.prefix = prefix;
- args.line = line;
- args.word_start = word_start;
- args.word_end = word_end;
- args.escaped = escaped;
-/*
- * Iterate through the list of users, recording those which start
- * with the specified prefix.
- */
- if(_hd_scan_user_home_dirs(cf->home, &args, cf_homedir_callback)) {
- strncpy(cf->errmsg, _hd_last_home_dir_error(cf->home), ERRLEN);
- cf->errmsg[ERRLEN] = '\0';
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * The user/home-directory scanner callback function (see homedir.h)
- * used by cf_complete_username().
- */
-static HOME_DIR_FN(cf_homedir_callback)
-{
-/*
- * Get the file-completion resources from the anonymous data argument.
- */
- CfHomeArgs *args = (CfHomeArgs *) data;
- WordCompletion *cpl = args->cpl;
- CompleteFile *cf = args->cf;
-/*
- * Get the length of the username prefix.
- */
- int prefix_len = strlen(args->prefix);
-/*
- * Get the length of the latest user name that is to be compared to
- * the prefix.
- */
- int name_len = strlen(usrnam);
-/*
- * See if the latest username starts with the prefix that we are
- * searching for, and record its suffix in the array of matches if so.
- */
- if(name_len >= prefix_len && strncmp(args->prefix, usrnam, prefix_len)==0) {
-/*
- * Copy the username into the pathname work buffer, adding backslash
- * escapes where needed.
- */
- if(cf_prepare_suffix(cf, usrnam+prefix_len, args->escaped)) {
- strncpy(errmsg, cf->errmsg, maxerr);
- errmsg[maxerr] = '\0';
- return 1;
- };
-/*
- * Report the completion suffix that was copied above.
- */
- if(cpl_add_completion(cpl, args->line, args->word_start, args->word_end,
- cf->buff->name, FS_DIR_SEP, FS_DIR_SEP)) {
- strncpy(errmsg, cpl_last_error(cpl), maxerr);
- errmsg[maxerr] = '\0';
- return 1;
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Report possible completions of the filename in cf->path->name[].
- *
- * Input:
- * cf CompleteFile * The file-completion resource object.
- * cpl WordCompletion * The object in which to record the completions.
- * line const char * The input line, as received by the callback
- * function.
- * word_start int The index within line[] of the start of the
- * last component of the filename that is being
- * completed.
- * word_end int The index within line[] of the character which
- * follows the incomplete filename.
- * escaped int If true, escape special characters in the
- * completion suffixes.
- * check_fn CplCheckFn * If not zero, this argument specifies a
- * function to call to ask whether a given
- * file should be included in the list
- * of completions.
- * check_data void * Anonymous data to be passed to check_fn().
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int cf_complete_entry(CompleteFile *cf, WordCompletion *cpl,
- const char *line, int word_start, int word_end,
- int escaped, CplCheckFn *check_fn,
- void *check_data)
-{
- const char *dirpath; /* The name of the parent directory */
- int start; /* The index of the start of the last filename */
- /* component in the transcribed filename. */
- const char *prefix; /* The filename prefix to be completed */
- int prefix_len; /* The length of the filename prefix */
- const char *file_name; /* The lastest filename being compared */
- int waserr = 0; /* True after errors */
- int terminated=0; /* True if the directory part had to be terminated */
-/*
- * Get the pathname string and its current length.
- */
- char *pathname = cf->path->name;
- int pathlen = strlen(pathname);
-/*
- * Locate the start of the final component of the pathname.
- */
- for(start=pathlen - 1; start >= 0 &&
- strncmp(pathname + start, FS_DIR_SEP, FS_DIR_SEP_LEN) != 0; start--)
- ;
-/*
- * Is the parent directory the root directory?
- */
- if(start==0 ||
- (start < 0 && strncmp(pathname, FS_ROOT_DIR, FS_ROOT_DIR_LEN) == 0)) {
- dirpath = FS_ROOT_DIR;
- start += FS_ROOT_DIR_LEN;
-/*
- * If we found a directory separator then the part which precedes the
- * last component is the name of the directory to be opened.
- */
- } else if(start > 0) {
-/*
- * The _dr_open_dir() function requires the directory name to be '\0'
- * terminated, so temporarily do this by overwriting the first character
- * of the directory separator.
- */
- pathname[start] = '\0';
- dirpath = pathname;
- terminated = 1;
-/*
- * We reached the start of the pathname before finding a directory
- * separator, so arrange to open the current working directory.
- */
- } else {
- start = 0;
- dirpath = FS_PWD;
- };
-/*
- * Attempt to open the directory.
- */
- if(_dr_open_dir(cf->dr, dirpath, NULL)) {
- const char *fmt = "Can't open directory: %.*s";
- sprintf(cf->errmsg, fmt, ERRLEN - strlen(fmt), dirpath);
- return 1;
- };
-/*
- * If removed above, restore the directory separator and skip over it
- * to the start of the filename.
- */
- if(terminated) {
- memcpy(pathname + start, FS_DIR_SEP, FS_DIR_SEP_LEN);
- start += FS_DIR_SEP_LEN;
- };
-/*
- * Get the filename prefix and its length.
- */
- prefix = pathname + start;
- prefix_len = strlen(prefix);
-/*
- * Traverse the directory, looking for files who's prefixes match the
- * last component of the pathname.
- */
- while((file_name = _dr_next_file(cf->dr)) != NULL && !waserr) {
- int name_len = strlen(file_name);
-/*
- * Is the latest filename a possible completion of the filename prefix?
- */
- if(name_len >= prefix_len && strncmp(prefix, file_name, prefix_len)==0) {
-/*
- * When listing all files in a directory, don't list files that start
- * with '.'. This is how hidden files are denoted in UNIX.
- */
- if(prefix_len > 0 || file_name[0] != '.') {
-/*
- * Copy the completion suffix into the work pathname cf->buff->name,
- * adding backslash escapes if needed.
- */
- if(cf_prepare_suffix(cf, file_name + prefix_len, escaped)) {
- waserr = 1;
- } else {
-/*
- * We want directories to be displayed with directory suffixes,
- * and other fully completed filenames to be followed by spaces.
- * To check the type of the file, append the current suffix
- * to the path being completed, check the filetype, then restore
- * the path to its original form.
- */
- const char *cont_suffix = ""; /* The suffix to add if fully */
- /* completed. */
- const char *type_suffix = ""; /* The suffix to add when listing */
- if(_pn_append_to_path(cf->path, file_name + prefix_len,
- -1, escaped) == NULL) {
- strcpy(cf->errmsg, "Insufficient memory to complete filename.");
- return 1;
- };
-/*
- * Specify suffixes according to the file type.
- */
- if(_pu_path_is_dir(cf->path->name)) {
- cont_suffix = FS_DIR_SEP;
- type_suffix = FS_DIR_SEP;
- } else if(!check_fn || check_fn(check_data, cf->path->name)) {
- cont_suffix = " ";
- } else {
- cf->path->name[pathlen] = '\0';
- continue;
- };
-/*
- * Remove the temporarily added suffix.
- */
- cf->path->name[pathlen] = '\0';
-/*
- * Record the latest completion.
- */
- if(cpl_add_completion(cpl, line, word_start, word_end, cf->buff->name,
- type_suffix, cont_suffix))
- waserr = 1;
- };
- };
- };
- };
-/*
- * Close the directory.
- */
- _dr_close_dir(cf->dr);
- return waserr;
-}
-
-/*.......................................................................
- * Read a username or environment variable name, stopping when a directory
- * separator is seen, when the end of the string is reached, or the
- * output buffer overflows.
- *
- * Input:
- * cf CompleteFile * The file-completion resource object.
- * type char * The capitalized name of the type of name being read.
- * string char * The string who's prefix contains the name.
- * slen int The number of characters in string[].
- * nambuf char * The output name buffer.
- * nammax int The longest string that will fit in nambuf[], excluding
- * the '\0' terminator.
- * Output:
- * return char * A pointer to nambuf on success. On error NULL is
- * returned and a description of the error is recorded
- * in cf->errmsg[].
- */
-static char *cf_read_name(CompleteFile *cf, const char *type,
- const char *string, int slen,
- char *nambuf, int nammax)
-{
- int namlen; /* The number of characters in nambuf[] */
- const char *sptr; /* A pointer into string[] */
-/*
- * Work out the max number of characters that should be copied.
- */
- int nmax = nammax < slen ? nammax : slen;
-/*
- * Get the environment variable name that follows the dollar.
- */
- for(sptr=string,namlen=0;
- namlen < nmax && (slen-namlen < FS_DIR_SEP_LEN ||
- strncmp(sptr, FS_DIR_SEP, FS_DIR_SEP_LEN) != 0);
- namlen++) {
- nambuf[namlen] = *sptr++;
- };
-/*
- * Did the name overflow the buffer?
- */
- if(namlen >= nammax) {
- const char *fmt = "%.*s name too long";
- sprintf(cf->errmsg, fmt, ERRLEN - strlen(fmt), type);
- return NULL;
- };
-/*
- * Terminate the string.
- */
- nambuf[namlen] = '\0';
- return nambuf;
-}
-
-/*.......................................................................
- * Using the work buffer cf->buff, make a suitably escaped copy of a
- * given completion suffix, ready to be passed to cpl_add_completion().
- *
- * Input:
- * cf CompleteFile * The file-completion resource object.
- * suffix char * The suffix to be copied.
- * add_escapes int If true, escape special characters.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int cf_prepare_suffix(CompleteFile *cf, const char *suffix,
- int add_escapes)
-{
- const char *sptr; /* A pointer into suffix[] */
- int nbsl; /* The number of backslashes to add to the suffix */
- int i;
-/*
- * How long is the suffix?
- */
- int suffix_len = strlen(suffix);
-/*
- * Clear the work buffer.
- */
- _pn_clear_path(cf->buff);
-/*
- * Count the number of backslashes that will have to be added to
- * escape spaces, tabs, backslashes and wildcard characters.
- */
- nbsl = 0;
- if(add_escapes) {
- for(sptr = suffix; *sptr; sptr++) {
- switch(*sptr) {
- case ' ': case '\t': case '\\': case '*': case '?': case '[':
- nbsl++;
- break;
- };
- };
- };
-/*
- * Arrange for the output path buffer to have sufficient room for the
- * both the suffix and any backslashes that have to be inserted.
- */
- if(_pn_resize_path(cf->buff, suffix_len + nbsl) == NULL) {
- strcpy(cf->errmsg, "Insufficient memory to complete filename");
- return 1;
- };
-/*
- * If the suffix doesn't need any escapes, copy it directly into the
- * work buffer.
- */
- if(nbsl==0) {
- strcpy(cf->buff->name, suffix);
- } else {
-/*
- * Make a copy with special characters escaped?
- */
- if(nbsl > 0) {
- const char *src = suffix;
- char *dst = cf->buff->name;
- for(i=0; i
-#include
-#include
-
-/*
- * Local includes.
- */
-#include "libtecla.h"
-#include "stringrp.h"
-#include "pathutil.h"
-#include "cplfile.h"
-
-/*
- * Specify the number of strings to allocate when the string free-list
- * is exhausted. This also sets the number of elements to expand the
- * matches[] array by whenever it is found to be too small.
- */
-#define STR_BLK_FACT 100
-
-/*
- * Set the max length of the error-reporting string. There is no point
- * in this being longer than the width of a typical terminal window.
- * In composing error messages, I have assumed that this number is
- * at least 80, so don't decrease it below 80.
- */
-#define ERRLEN 200
-
-/*
- * Completion matches are recorded in containers of the following
- * type.
- */
-struct WordCompletion {
- StringGroup *sg; /* Memory for a group of strings */
- int matches_dim; /* The allocated size of result.matches[] */
- char errmsg[ERRLEN+1]; /* The error-reporting buffer */
- CplMatches result; /* Completions to be returned to the caller */
- CompleteFile *cf; /* The resources used for filename completion */
-};
-
-static void cpl_sort_matches(WordCompletion *cpl);
-static void cpl_zap_duplicates(WordCompletion *cpl);
-static void cpl_clear_completions(WordCompletion *cpl);
-static int cpl_cmp_matches(const void *v1, const void *v2);
-static int cpl_cmp_suffixes(const void *v1, const void *v2);
-
-/*
- * The new_CplFileConf() constructor sets the integer first member of
- * the returned object to the following magic number. On seeing this,
- * cpl_file_completions() knows when it is passed a valid CplFileConf
- * object.
- */
-#define CFC_ID_CODE 4568
-
-/*
- * A pointer to a structure of the following type can be passed to
- * the builtin file-completion callback function to modify its behavior.
- */
-struct CplFileConf {
- int id; /* new_CplFileConf() sets this to CFC_ID_CODE */
- int escaped; /* If none-zero, backslashes in the input line are */
- /* interpreted as escaping special characters and */
- /* spaces, and any special characters and spaces in */
- /* the listed completions will also be escaped with */
- /* added backslashes. This is the default behaviour. */
- /* If zero, backslashes are interpreted as being */
- /* literal parts of the filename, and none are added */
- /* to the completion suffixes. */
- int file_start; /* The index in the input line of the first character */
- /* of the filename. If you specify -1 here, */
- /* cpl_file_completions() identifies the */
- /* the start of the filename by looking backwards for */
- /* an unescaped space, or the beginning of the line. */
- CplCheckFn *chk_fn; /* If not zero, this argument specifies a */
- /* function to call to ask whether a given */
- /* file should be included in the list */
- /* of completions. */
- void *chk_data; /* Anonymous data to be passed to check_fn(). */
-};
-
-static void cpl_init_FileConf(CplFileConf *cfc);
-
-/*.......................................................................
- * Create a new string-completion object.
- *
- * Output:
- * return WordCompletion * The new object, or NULL on error.
- */
-WordCompletion *new_WordCompletion(void)
-{
- WordCompletion *cpl; /* The object to be returned */
-/*
- * Allocate the container.
- */
- cpl = (WordCompletion *) malloc(sizeof(WordCompletion));
- if(!cpl) {
- fprintf(stderr, "new_WordCompletion: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to del_WordCompletion().
- */
- cpl->sg = NULL;
- cpl->matches_dim = 0;
- cpl->result.suffix = NULL;
- cpl->result.cont_suffix = NULL;
- cpl->result.matches = NULL;
- cpl->result.nmatch = 0;
- cpl->cf = NULL;
-/*
- * Allocate an object that allows a group of strings to be allocated
- * efficiently by placing many of them in contiguous string segments.
- */
- cpl->sg = _new_StringGroup(_pu_pathname_dim());
- if(!cpl->sg)
- return del_WordCompletion(cpl);
-/*
- * Allocate an array for matching completions. This will be extended later
- * if needed.
- */
- cpl->matches_dim = STR_BLK_FACT;
- cpl->result.matches = (CplMatch *) malloc(sizeof(cpl->result.matches[0]) *
- cpl->matches_dim);
- if(!cpl->result.matches) {
- fprintf(stderr,
- "new_WordCompletion: Insufficient memory to allocate array of matches.\n");
- return del_WordCompletion(cpl);
- };
-/*
- * Allocate a filename-completion resource object.
- */
- cpl->cf = _new_CompleteFile();
- if(!cpl->cf)
- return del_WordCompletion(cpl);
- return cpl;
-}
-
-/*.......................................................................
- * Delete a string-completion object.
- *
- * Input:
- * cpl WordCompletion * The object to be deleted.
- * Output:
- * return WordCompletion * The deleted object (always NULL).
- */
-WordCompletion *del_WordCompletion(WordCompletion *cpl)
-{
- if(cpl) {
- cpl->sg = _del_StringGroup(cpl->sg);
- if(cpl->result.matches) {
- free(cpl->result.matches);
- cpl->result.matches = NULL;
- cpl->cf = _del_CompleteFile(cpl->cf);
- };
- free(cpl);
- };
- return NULL;
-}
-
-/*.......................................................................
- * This function is designed to be called by CplMatchFn callback
- * functions. It adds one possible completion of the token that is being
- * completed to an array of completions. If the completion needs any
- * special quoting to be valid when displayed in the input line, this
- * quoting must be included in the string.
- *
- * Input:
- * cpl WordCompletion * The argument of the same name that was passed
- * to the calling CplMatchFn callback function.
- * line const char * The input line, as received by the callback
- * function.
- * word_start int The index within line[] of the start of the
- * word that is being completed.
- * word_end int The index within line[] of the character which
- * follows the incomplete word, as received by the
- * calling callback function.
- * suffix const char * The appropriately quoted string that could
- * be appended to the incomplete token to complete
- * it. A copy of this string will be allocated
- * internally.
- * type_suffix const char * When listing multiple completions, gl_get_line()
- * appends this string to the completion to indicate
- * its type to the user. If not pertinent pass "".
- * Otherwise pass a literal or static string.
- * cont_suffix const char * If this turns out to be the only completion,
- * gl_get_line() will append this string as
- * a continuation. For example, the builtin
- * file-completion callback registers a directory
- * separator here for directory matches, and a
- * space otherwise. If the match were a function
- * name you might want to append an open
- * parenthesis, etc.. If not relevant pass "".
- * Otherwise pass a literal or static string.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int cpl_add_completion(WordCompletion *cpl, const char *line,
- int word_start, int word_end, const char *suffix,
- const char *type_suffix, const char *cont_suffix)
-{
- CplMatch *match; /* The container of the new match */
- char *string; /* A newly allocated copy of the completion string */
-/*
- * Check the arguments.
- */
- if(!cpl)
- return 1;
- if(!suffix)
- return 0;
- if(!type_suffix)
- type_suffix = "";
- if(!cont_suffix)
- cont_suffix = "";
-/*
- * Do we need to extend the array of matches[]?
- */
- if(cpl->result.nmatch+1 > cpl->matches_dim) {
- int needed = cpl->matches_dim + STR_BLK_FACT;
- CplMatch *matches = (CplMatch *) realloc(cpl->result.matches,
- sizeof(cpl->result.matches[0]) * needed);
- if(!matches) {
- strcpy(cpl->errmsg, "Insufficient memory to extend array of matches.");
- return 1;
- };
- cpl->result.matches = matches;
- cpl->matches_dim = needed;
- };
-/*
- * Allocate memory to store the combined completion prefix and the
- * new suffix.
- */
- string = _sg_alloc_string(cpl->sg, word_end-word_start + strlen(suffix));
- if(!string) {
- strcpy(cpl->errmsg, "Insufficient memory to extend array of matches.");
- return 1;
- };
-/*
- * Compose the string.
- */
- strncpy(string, line + word_start, word_end - word_start);
- strcpy(string + word_end - word_start, suffix);
-/*
- * Record the new match.
- */
- match = cpl->result.matches + cpl->result.nmatch++;
- match->completion = string;
- match->suffix = string + word_end - word_start;
- match->type_suffix = type_suffix;
-/*
- * Record the continuation suffix.
- */
- cpl->result.cont_suffix = cont_suffix;
- return 0;
-}
-
-/*.......................................................................
- * Sort the array of matches.
- *
- * Input:
- * cpl WordCompletion * The completion resource object.
- */
-static void cpl_sort_matches(WordCompletion *cpl)
-{
- qsort(cpl->result.matches, cpl->result.nmatch,
- sizeof(cpl->result.matches[0]), cpl_cmp_matches);
-}
-
-/*.......................................................................
- * This is a qsort() comparison function used to sort matches.
- *
- * Input:
- * v1, v2 void * Pointers to the two matches to be compared.
- * Output:
- * return int -1 -> v1 < v2.
- * 0 -> v1 == v2
- * 1 -> v1 > v2
- */
-static int cpl_cmp_matches(const void *v1, const void *v2)
-{
- const CplMatch *m1 = (const CplMatch *) v1;
- const CplMatch *m2 = (const CplMatch *) v2;
- return strcmp(m1->completion, m2->completion);
-}
-
-/*.......................................................................
- * Sort the array of matches in order of their suffixes.
- *
- * Input:
- * cpl WordCompletion * The completion resource object.
- */
-static void cpl_sort_suffixes(WordCompletion *cpl)
-{
- qsort(cpl->result.matches, cpl->result.nmatch,
- sizeof(cpl->result.matches[0]), cpl_cmp_suffixes);
-}
-
-/*.......................................................................
- * This is a qsort() comparison function used to sort matches in order of
- * their suffixes.
- *
- * Input:
- * v1, v2 void * Pointers to the two matches to be compared.
- * Output:
- * return int -1 -> v1 < v2.
- * 0 -> v1 == v2
- * 1 -> v1 > v2
- */
-static int cpl_cmp_suffixes(const void *v1, const void *v2)
-{
- const CplMatch *m1 = (const CplMatch *) v1;
- const CplMatch *m2 = (const CplMatch *) v2;
- return strcmp(m1->suffix, m2->suffix);
-}
-
-/*.......................................................................
- * Find the common prefix of all of the matching completion matches,
- * and record a pointer to it in cpl->result.suffix. Note that this has
- * the side effect of sorting the matches into suffix order.
- *
- * Input:
- * cpl WordCompletion * The completion resource object.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int cpl_common_suffix(WordCompletion *cpl)
-{
- CplMatches *result; /* The result container */
- const char *first, *last; /* The first and last matching suffixes */
- int length; /* The length of the common suffix */
-/*
- * Get the container of the array of matching files.
- */
- result = &cpl->result;
-/*
- * No matching completions?
- */
- if(result->nmatch < 1)
- return 0;
-/*
- * Sort th matches into suffix order.
- */
- cpl_sort_suffixes(cpl);
-/*
- * Given that the array of matches is sorted, the first and last
- * suffixes are those that differ most in their prefixes, so the common
- * prefix of these strings is the longest common prefix of all of the
- * suffixes.
- */
- first = result->matches[0].suffix;
- last = result->matches[result->nmatch - 1].suffix;
-/*
- * Find the point at which the first and last matching strings
- * first difffer.
- */
- while(*first && *first == *last) {
- first++;
- last++;
- };
-/*
- * How long is the common suffix?
- */
- length = first - result->matches[0].suffix;
-/*
- * Allocate memory to record the common suffix.
- */
- result->suffix = _sg_alloc_string(cpl->sg, length);
- if(!result->suffix) {
- strcpy(cpl->errmsg,
- "Insufficient memory to record common completion suffix.");
- return 1;
- };
-/*
- * Record the common suffix.
- */
- strncpy(result->suffix, result->matches[0].suffix, length);
- result->suffix[length] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Discard the contents of the array of possible completion matches.
- *
- * Input:
- * cpl WordCompletion * The word-completion resource object.
- */
-static void cpl_clear_completions(WordCompletion *cpl)
-{
-/*
- * Discard all of the strings.
- */
- _clr_StringGroup(cpl->sg);
-/*
- * Record the fact that the array is now empty.
- */
- cpl->result.nmatch = 0;
- cpl->result.suffix = NULL;
- cpl->result.cont_suffix = "";
-/*
- * Also clear the error message.
- */
- cpl->errmsg[0] = '\0';
- return;
-}
-
-/*.......................................................................
- * Given an input line and the point at which it completion is to be
- * attempted, return an array of possible completions.
- *
- * Input:
- * cpl WordCompletion * The completion resource object.
- * line char * The current input line.
- * word_end int The index of the character in line[] which
- * follows the end of the token that is being
- * completed.
- * data void * Anonymous 'data' to be passed to match_fn().
- * match_fn CplMatchFn * The function that will identify the prefix
- * to be completed from the input line, and
- * record completion matches.
- * Output:
- * return CplMatches * The container of the array of possible
- * completions. The returned pointer refers
- * to a container owned by the parent WordCompletion
- * object, and its contents thus potentially
- * change on every call to cpl_matches().
- * On error, NULL is returned, and a description
- * of the error can be acquired by calling
- * cpl_last_error(cpl).
- */
-CplMatches *cpl_complete_word(WordCompletion *cpl, const char *line,
- int word_end, void *data,
- CplMatchFn *match_fn)
-{
- int line_len; /* The total length of the input line */
-/*
- * How long is the input line?
- */
- line_len = strlen(line);
-/*
- * Check the arguments.
- */
- if(!cpl || !line || !match_fn || word_end < 0 || word_end > line_len) {
- if(cpl)
- strcpy(cpl->errmsg, "cpl_complete_word: Invalid arguments.");
- return NULL;
- };
-/*
- * Clear the return container.
- */
- cpl_clear_completions(cpl);
-/*
- * Have the matching function record possible completion matches in
- * cpl->result.matches.
- */
- if(match_fn(cpl, data, line, word_end)) {
- if(cpl->errmsg[0] == '\0')
- strcpy(cpl->errmsg, "Error completing word.");
- return NULL;
- };
-/*
- * Record a copy of the common initial part of all of the prefixes
- * in cpl->result.common.
- */
- if(cpl_common_suffix(cpl))
- return NULL;
-/*
- * Sort the matches into lexicographic order.
- */
- cpl_sort_matches(cpl);
-/*
- * Discard any duplicate matches.
- */
- cpl_zap_duplicates(cpl);
-/*
- * If there is more than one match, discard the continuation suffix.
- */
- if(cpl->result.nmatch > 1)
- cpl->result.cont_suffix = "";
-/*
- * Return the array of matches.
- */
- return &cpl->result;
-}
-
-/*.......................................................................
- * Print out an array of matching completions.
- *
- * Input:
- * result CplMatches * The container of the sorted array of
- * completions.
- * fp FILE * The output stream to write to.
- * term_width int The width of the terminal.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int cpl_list_completions(CplMatches *result, FILE *fp, int term_width)
-{
- int maxlen; /* The length of the longest matching string */
- int width; /* The width of a column */
- int ncol; /* The number of columns to list */
- int nrow; /* The number of rows needed to list all of the matches */
- int row,col; /* The row and column being written to */
- int i;
-/*
- * Check the arguments.
- */
- if(!result || !fp) {
- fprintf(stderr, "cpl_list_completions: NULL argument(s).\n");
- return 1;
- };
-/*
- * Not enough space to list anything?
- */
- if(term_width < 1)
- return 0;
-/*
- * Work out the maximum length of the matching strings.
- */
- maxlen = 0;
- for(i=0; inmatch; i++) {
- CplMatch *match = result->matches + i;
- int len = strlen(match->completion) +
- strlen(match->type_suffix);
- if(len > maxlen)
- maxlen = len;
- };
-/*
- * Nothing to list?
- */
- if(maxlen == 0)
- return 0;
-/*
- * Split the available terminal width into columns of maxlen + 2 characters.
- */
- width = maxlen + 2;
- ncol = term_width / width;
-/*
- * If the column width is greater than the terminal width, the matches will
- * just have to overlap onto the next line.
- */
- if(ncol < 1)
- ncol = 1;
-/*
- * How many rows will be needed?
- */
- nrow = (result->nmatch + ncol - 1) / ncol;
-/*
- * Print the matches out in ncol columns, sorted in row order within each
- * column.
- */
- for(row=0; row < nrow; row++) {
- for(col=0; col < ncol; col++) {
- int m = col*nrow + row;
- if(m < result->nmatch) {
- CplMatch *match = result->matches + m;
- if(fprintf(fp, "%s%-*s%s", match->completion,
- (int) (ncol > 1 ? maxlen - strlen(match->completion):0),
- match->type_suffix, colerrmsg : "NULL WordCompletion argument";
-}
-
-/*.......................................................................
- * When an error occurs while performing a completion, you registerf a
- * terse description of the error by calling cpl_record_error(). This
- * message will then be returned on the next call to cpl_last_error().
- *
- * Input:
- * cpl WordCompletion * The string-completion resource object that was
- * originally passed to the callback.
- * errmsg const char * The description of the error.
- */
-void cpl_record_error(WordCompletion *cpl, const char *errmsg)
-{
- if(cpl && errmsg) {
- strncpy(cpl->errmsg, errmsg, ERRLEN);
- cpl->errmsg[ERRLEN] = '\0';
- };
-}
-
-/*.......................................................................
- * This is the builtin completion callback function which performs file
- * completion.
- *
- * Input:
- * cpl WordCompletion * An opaque pointer to the object that will
- * contain the matches. This should be filled
- * via zero or more calls to cpl_add_completion().
- * data void * Either NULL to request the default
- * file-completion behavior, or a pointer to a
- * CplFileConf structure, whose members specify
- * a different behavior.
- * line char * The current input line.
- * word_end int The index of the character in line[] which
- * follows the end of the token that is being
- * completed.
- * Output
- * return int 0 - OK.
- * 1 - Error.
- */
-CPL_MATCH_FN(cpl_file_completions)
-{
- const char *start_path; /* The pointer to the start of the pathname */
- /* in line[]. */
- CplFileConf *conf; /* The new-style configuration object. */
-/*
- * The following configuration object will be used if the caller didn't
- * provide one.
- */
- CplFileConf default_conf;
-/*
- * This function can be called externally, so check its arguments.
- */
- if(!cpl)
- return 1;
- if(!line || word_end < 0) {
- strcpy(cpl->errmsg, "cpl_file_completions: Invalid arguments.");
- return 1;
- };
-/*
- * The 'data' argument is either a CplFileConf pointer, identifiable
- * by having an integer id code as its first member, or the deprecated
- * CplFileArgs pointer, or can be NULL to request the default
- * configuration.
- */
- if(data && *(int *)data == CFC_ID_CODE) {
- conf = (CplFileConf *) data;
- } else {
-/*
- * Select the defaults.
- */
- conf = &default_conf;
- cpl_init_FileConf(&default_conf);
-/*
- * If we have been passed an instance of the deprecated CplFileArgs
- * structure, copy its configuration parameters over the defaults.
- */
- if(data) {
- CplFileArgs *args = (CplFileArgs *) data;
- conf->escaped = args->escaped;
- conf->file_start = args->file_start;
- };
- };
-/*
- * Get the start of the filename. If not specified by the caller
- * identify it by searching backwards in the input line for an
- * unescaped space or the start of the line.
- */
- if(conf->file_start < 0) {
- start_path = _pu_start_of_path(line, word_end);
- if(!start_path) {
- strcpy(cpl->errmsg, "Unable to find the start of the filename.");
- return 1;
- };
- } else {
- start_path = line + conf->file_start;
- };
-/*
- * Perform the completion.
- */
- if(_cf_complete_file(cpl, cpl->cf, line, start_path - line, word_end,
- conf->escaped, conf->chk_fn, conf->chk_data)) {
- cpl_record_error(cpl, _cf_last_error(cpl->cf));
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Initialize a CplFileArgs structure with default configuration
- * parameters. Note that the CplFileArgs configuration type is
- * deprecated. The opaque CplFileConf object should be used in future
- * applications.
- *
- * Input:
- * cfa CplFileArgs * The configuration object of the
- * cpl_file_completions() callback.
- */
-void cpl_init_FileArgs(CplFileArgs *cfa)
-{
- if(cfa) {
- cfa->escaped = 1;
- cfa->file_start = -1;
- };
-}
-
-/*.......................................................................
- * Initialize a CplFileConf structure with default configuration
- * parameters.
- *
- * Input:
- * cfc CplFileConf * The configuration object of the
- * cpl_file_completions() callback.
- */
-static void cpl_init_FileConf(CplFileConf *cfc)
-{
- if(cfc) {
- cfc->id = CFC_ID_CODE;
- cfc->escaped = 1;
- cfc->file_start = -1;
- cfc->chk_fn = 0;
- cfc->chk_data = NULL;
- };
-}
-
-/*.......................................................................
- * Create a new CplFileConf object and initialize it with defaults.
- *
- * Output:
- * return CplFileConf * The new object, or NULL on error.
- */
-CplFileConf *new_CplFileConf(void)
-{
- CplFileConf *cfc; /* The object to be returned */
-/*
- * Allocate the container.
- */
- cfc = (CplFileConf *)malloc(sizeof(CplFileConf));
- if(!cfc)
- return NULL;
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to del_CplFileConf().
- */
- cpl_init_FileConf(cfc);
- return cfc;
-}
-
-/*.......................................................................
- * Delete a CplFileConf object.
- *
- * Input:
- * cfc CplFileConf * The object to be deleted.
- * Output:
- * return CplFileConf * The deleted object (always NULL).
- */
-CplFileConf *del_CplFileConf(CplFileConf *cfc)
-{
- if(cfc) {
-/*
- * Delete the container.
- */
- free(cfc);
- };
- return NULL;
-}
-
-/*.......................................................................
- * If backslashes in the filename should be treated as literal
- * characters, call the following function with literal=1. Otherwise
- * the default is to treat them as escape characters, used for escaping
- * spaces etc..
- *
- * Input:
- * cfc CplFileConf * The cpl_file_completions() configuration object
- * to be configured.
- * literal int Pass non-zero here to enable literal interpretation
- * of backslashes. Pass 0 to turn off literal
- * interpretation.
- */
-void cfc_literal_escapes(CplFileConf *cfc, int literal)
-{
- if(cfc)
- cfc->escaped = !literal;
-}
-
-/*.......................................................................
- * Call this function if you know where the index at which the
- * filename prefix starts in the input line. Otherwise by default,
- * or if you specify start_index to be -1, the filename is taken
- * to start after the first unescaped space preceding the cursor,
- * or the start of the line, which ever comes first.
- *
- * Input:
- * cfc CplFileConf * The cpl_file_completions() configuration object
- * to be configured.
- * start_index int The index of the start of the filename in
- * the input line, or -1 to select the default.
- */
-void cfc_file_start(CplFileConf *cfc, int start_index)
-{
- if(cfc)
- cfc->file_start = start_index;
-}
-
-/*.......................................................................
- * If you only want certain types of files to be included in the
- * list of completions, you use the following function to specify a
- * callback function which will be called to ask whether a given file
- * should be included.
- *
- * Input:
- * cfc CplFileConf * The cpl_file_completions() configuration object
- * to be configured.
- * chk_fn CplCheckFn * Zero to disable filtering, or a pointer to a
- * function that returns 1 if a given file should
- * be included in the list of completions.
- * chk_data void * Anonymous data to be passed to chk_fn()
- * every time that it is called.
- */
-void cfc_set_check_fn(CplFileConf *cfc, CplCheckFn *chk_fn, void *chk_data)
-{
- if(cfc) {
- cfc->chk_fn = chk_fn;
- cfc->chk_data = chk_data;
- };
-}
-
-/*.......................................................................
- * The following CplCheckFn callback returns non-zero if the specified
- * filename is that of an executable.
- */
-CPL_CHECK_FN(cpl_check_exe)
-{
- return _pu_path_is_exe(pathname);
-}
-
-/*.......................................................................
- * Remove duplicates from a sorted array of matches.
- *
- * Input:
- * cpl WordCompletion * The completion resource object.
- */
-static void cpl_zap_duplicates(WordCompletion *cpl)
-{
- CplMatch *matches; /* The array of matches */
- int nmatch; /* The number of elements in matches[] */
- const char *completion; /* The completion string of the last unique match */
- const char *type_suffix; /* The type of the last unique match */
- int src; /* The index of the match being considered */
- int dst; /* The index at which to record the next */
- /* unique match. */
-/*
- * Get the array of matches and the number of matches that it
- * contains.
- */
- matches = cpl->result.matches;
- nmatch = cpl->result.nmatch;
-/*
- * No matches?
- */
- if(nmatch < 1)
- return;
-/*
- * Initialize the comparison strings with the first match.
- */
- completion = matches[0].completion;
- type_suffix = matches[0].type_suffix;
-/*
- * Go through the array of matches, copying each new unrecorded
- * match at the head of the array, while discarding duplicates.
- */
- for(src=dst=1; srccompletion) != 0 ||
- strcmp(type_suffix, match->type_suffix) != 0) {
- if(src != dst)
- matches[dst] = *match;
- dst++;
- completion = match->completion;
- type_suffix = match->type_suffix;
- };
- };
-/*
- * Record the number of unique matches that remain.
- */
- cpl->result.nmatch = dst;
- return;
-}
diff --git a/libtecla-1.4.1/demo.c b/libtecla-1.4.1/demo.c
deleted file mode 100644
index 8bee92d..0000000
--- a/libtecla-1.4.1/demo.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by the California Institute of Technology.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include
-#include
-#include
-#include
-#include
-#include
-
-#include
-#include
-
-#include "libtecla.h"
-
-int main(int argc, char *argv[])
-{
- char *line; /* A line of input */
- GetLine *gl; /* The line editor */
- int major,minor,micro; /* The version number of the library */
-/*
- * Create the line editor, specifying a max line length of 500 bytes,
- * and 10000 bytes to allocate to storage of historical input lines.
- */
- gl = new_GetLine(500, 5000);
- if(!gl)
- return 1;
-/*
- * If the user has the LC_CTYPE or LC_ALL environment variables set,
- * enable display of characters corresponding to the specified locale.
- */
- (void) setlocale(LC_CTYPE, "");
-/*
- * Lookup and display the version number of the library.
- */
- libtecla_version(&major, &minor, µ);
- printf("Welcome to the demo program of libtecla version %d.%d.%d\n",
- major, minor, micro);
-/*
- * Load history.
- */
- (void) gl_load_history(gl, "~/.demo_history", "#");
-/*
- * Read lines of input from the user and print them to stdout.
- */
- do {
-/*
- * Get a new line from the user.
- */
- line = gl_get_line(gl, "$ ", NULL, 0);
- if(!line)
- break;
-/*
- * Display what was entered.
- */
- if(printf("You entered: %s", line) < 0 || fflush(stdout))
- break;
-/*
- * If the user types "exit", quit the program.
- */
- if(strcmp(line, "exit\n")==0)
- break;
- else if(strcmp(line, "history\n")==0)
- gl_show_history(gl, stdout, "%N %T %H\n", 0, -1);
- else if(strcmp(line, "size\n")==0) {
- GlTerminalSize size = gl_terminal_size(gl, 80, 24);
- printf("Terminal size = %d columns x %d lines.\n", size.ncolumn,
- size.nline);
- };
- } while(1);
-/*
- * Save historical command lines.
- */
- (void) gl_save_history(gl, "~/.demo_history", "#", -1);
-/*
- * Clean up.
- */
- gl = del_GetLine(gl);
- return 0;
-}
-
diff --git a/libtecla-1.4.1/demo2.c b/libtecla-1.4.1/demo2.c
deleted file mode 100644
index e1e80c6..0000000
--- a/libtecla-1.4.1/demo2.c
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include
-#include
-#include
-#include
-#include
-#include
-
-#include
-#include
-
-#include "libtecla.h"
-
-/*
- * Encapsulate the resources needed by this demo.
- */
-typedef struct {
- GetLine *gl; /* The line editor */
- PathCache *pc; /* A cache of executables in the user's path */
- PcaPathConf *ppc; /* The configuration argument of pca_path_completions() */
-} DemoRes;
-
-/*
- * The following functions allocate and free instances of the above
- * structure.
- */
-static DemoRes *new_DemoRes(void);
-static DemoRes *del_DemoRes(DemoRes *res);
-
-/*
- * Search backwards for the start of a pathname.
- */
-static char *start_of_path(const char *string, int back_from);
-
-/*
- * Find the array indexes of the first character of the first
- * space-delimited word in the specified string, and of the character
- * that follows it.
- */
-static int get_word_limits(const char *string, int *wa, int *wb);
-
-/*
- * This is the demonstration completion callback function (defined below).
- */
-static CPL_MATCH_FN(demo_cpl_fn);
-
-/*.......................................................................
- * This demo takes no arguments. It reads lines of input until the
- * word 'exit' is entered, or C-d is pressed. It replaces the default
- * tab-completion callback with one which when invoked at the start of
- * a line, looks up completions of commands in the user's execution
- * path, and when invoked in other parts of the line, reverts to
- * normal filename completion. Whenever a new line is entered, it
- * extracts the first word on the line, looks it up in the user's
- * execution path to see if it corresponds to a known executable file,
- * and if so, displays the full pathname of the file, along with the
- * remaining arguments.
- */
-int main(int argc, char *argv[])
-{
- char *line; /* A line of input */
- DemoRes *res; /* The resources of the demo */
- int wa,wb; /* The delimiting indexes of a word in line[] */
- int major,minor,micro; /* The version number of the library */
-/*
- * Allocate the resources needed by this demo.
- */
- res = new_DemoRes();
- if(!res)
- return 1;
-/*
- * If the user has the LC_CTYPE or LC_ALL environment variables set,
- * enable display of characters corresponding to the specified locale.
- */
- (void) setlocale(LC_CTYPE, "");
-/*
- * Lookup and display the version number of the library.
- */
- libtecla_version(&major, &minor, µ);
- printf("Welcome to the demo2 program of libtecla version %d.%d.%d\n",
- major, minor, micro);
-/*
- * Read lines of input from the user and print them to stdout.
- */
- do {
-/*
- * Get a new line from the user.
- */
- line = gl_get_line(res->gl, "$ ", NULL, 0);
- if(!line)
- break;
-/*
- * Work out the extent of the first word in the input line, and
- * try to identify this as a command in the path, displaying the
- * full pathname of the match if found.
- */
- if(get_word_limits(line, &wa, &wb) == 0) {
- char *cmd = pca_lookup_file(res->pc, line + wa, wb-wa, 0);
- if(cmd) {
- printf("Command=%s\n", cmd);
- printf("Arguments=%s", line+wb);
- } else {
- printf("Command not found\n");
- };
- };
-/*
- * If the user types "exit", quit the program.
- */
- if(strcmp(line, "exit\n")==0)
- break;
- } while(1);
-/*
- * Clean up.
- */
- res = del_DemoRes(res);
- return 0;
-}
-
-/*.......................................................................
- * This completion callback searches for completions of executables in
- * the user's path when invoked on a word at the start of the path, and
- * performs normal filename completion elsewhere.
- */
-static CPL_MATCH_FN(demo_cpl_fn)
-{
-/*
- * Get the resource object that was passed to gl_customize_completion().
- */
- DemoRes *res = (DemoRes *) data;
-/*
- * Find the start of the filename prefix to be completed, searching
- * backwards for the first unescaped space, or the start of the line.
- */
- char *start = start_of_path(line, word_end);
-/*
- * Skip spaces preceding the start of the prefix.
- */
- while(start > line && isspace((int)(unsigned char) start[-1]))
- start--;
-/*
- * If the filename prefix is at the start of the line, attempt
- * to complete the filename as a command in the path. Otherwise
- * perform normal filename completion.
- */
- return (start == line) ?
- pca_path_completions(cpl, res->ppc, line, word_end) :
- cpl_file_completions(cpl, NULL, line, word_end);
-}
-
-/*.......................................................................
- * Search backwards for the potential start of a filename. This
- * looks backwards from the specified index in a given string,
- * stopping at the first unescaped space or the start of the line.
- *
- * Input:
- * string const char * The string to search backwards in.
- * back_from int The index of the first character in string[]
- * that follows the pathname.
- * Output:
- * return char * The pointer to the first character of
- * the potential pathname, or NULL on error.
- */
-static char *start_of_path(const char *string, int back_from)
-{
- int i, j;
-/*
- * Search backwards from the specified index.
- */
- for(i=back_from-1; i>=0; i--) {
- int c = string[i];
-/*
- * Stop on unescaped spaces.
- */
- if(isspace((int)(unsigned char)c)) {
-/*
- * The space can't be escaped if we are at the start of the line.
- */
- if(i==0)
- break;
-/*
- * Find the extent of the escape characters which precedes the space.
- */
- for(j=i-1; j>=0 && string[j]=='\\'; j--)
- ;
-/*
- * If there isn't an odd number of escape characters before the space,
- * then the space isn't escaped.
- */
- if((i - 1 - j) % 2 == 0)
- break;
- };
- };
- return (char *)string + i + 1;
-}
-
-/*.......................................................................
- * Create a new DemoRes object containing the resources needed by the
- * demo.
- *
- * Output:
- * return DemoRes * The new object, or NULL on error.
- */
-static DemoRes *new_DemoRes(void)
-{
- DemoRes *res; /* The object to be returned */
-/*
- * Allocate the container.
- */
- res = (DemoRes *)malloc(sizeof(DemoRes));
- if(!res) {
- fprintf(stderr, "new_DemoRes: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to del_DemoRes().
- */
- res->gl = NULL;
- res->pc = NULL;
- res->ppc = NULL;
-/*
- * Create the line editor, specifying a max line length of 500 bytes,
- * and 10000 bytes to allocate to storage of historical input lines.
- */
- res->gl = new_GetLine(500, 10000);
- if(!res->gl)
- return del_DemoRes(res);
-/*
- * Enable text attribute formatting directives in prompt strings.
- */
- gl_prompt_style(res->gl, GL_FORMAT_PROMPT);
-/*
- * Allocate a cache of the executable files found in the user's path.
- */
- res->pc = new_PathCache();
- if(!res->pc)
- return del_DemoRes(res);
-/*
- * Populate the cache with the contents of the user's path.
- */
- if(pca_scan_path(res->pc, getenv("PATH")))
- return del_DemoRes(res);
-/*
- * Arrange for susequent calls to pca_lookup_file() and pca_path_completions()
- * to only report files that are executable by the user.
- */
- pca_set_check_fn(res->pc, cpl_check_exe, NULL);
-/*
- * Allocate a configuration object for use with pca_path_completions().
- */
- res->ppc = new_PcaPathConf(res->pc);
- if(!res->ppc)
- return del_DemoRes(res);
-/*
- * Replace the builtin filename completion callback with one which
- * searches for completions of executables in the user's path when
- * invoked on a word at the start of the path, and completes files
- * elsewhere.
- */
- if(gl_customize_completion(res->gl, res, demo_cpl_fn))
- return del_DemoRes(res);
- return res;
-}
-
-/*.......................................................................
- * Delete a DemoRes object.
- *
- * Input:
- * res DemoRes * The object to be deleted.
- * Output:
- * return DemoRes * The deleted object (always NULL).
- */
-static DemoRes *del_DemoRes(DemoRes *res)
-{
- if(res) {
- res->gl = del_GetLine(res->gl);
- res->pc = del_PathCache(res->pc);
- res->ppc = del_PcaPathConf(res->ppc);
- free(res);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Return the limits of the word at the start of a given string, ignoring
- * leading white-space, and interpretting the first unescaped space, tab or
- * the end of the line, as the end of the word.
- *
- * Input:
- * string const char * The string to tokenize.
- * Input/Output:
- * wa,wb int * The indexes of the first character of the word,
- * and the character which follows the last
- * character of the word, will be assigned to
- * *wa and *wb, respectively.
- * Output:
- * return int 0 - A word was found.
- * 1 - No word was found before the end of the
- * string.
- */
-static int get_word_limits(const char *string, int *wa, int *wb)
-{
- int escaped = 0; /* True if the next character is escaped */
-/*
- * Skip leading white-space.
- */
- for(*wa=0; isspace((int)(unsigned char)string[*wa]); (*wa)++)
- ;
-/*
- * Find the first unescaped space, stopping early if the end of the
- * string is reached.
- */
- for(*wb = *wa; ; (*wb)++) {
- int c = string[*wb];
- if(c=='\\')
- escaped = !escaped;
- else if((!escaped && isspace((int)(unsigned char)c)) || c=='\0')
- break;
- };
- return *wa == *wb;
-}
diff --git a/libtecla-1.4.1/direader.c b/libtecla-1.4.1/direader.c
deleted file mode 100644
index 8a81fbf..0000000
--- a/libtecla-1.4.1/direader.c
+++ /dev/null
@@ -1,299 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-/*
- * Standard includes.
- */
-#include
-#include
-#include
-#include
-
-/*
- * Operating system includes.
- */
-#include
-#include
-#include
-#include
-
-#include "direader.h"
-
-/*
- * Use the reentrant POSIX threads version of readdir()?
- */
-#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 199506L
-#define USE_READDIR_R 1
-#endif
-
-/*
- * Set the max length of the error-reporting string. There is no point
- * in this being longer than the width of a typical terminal window.
- * In composing error messages, I have assumed that this number is
- * at least 80, so you don't decrease it below this number.
- */
-#define ERRLEN 200
-
-/*
- * Objects of the following type are used to maintain the resources
- * needed to read directories.
- */
-struct DirReader {
- DIR *dir; /* The directory stream (if open, NULL otherwise) */
- struct dirent *file; /* The latest directory entry */
- char errmsg[ERRLEN+1]; /* Error-report buffer */
-#ifdef USE_READDIR_R
- struct dirent *buffer; /* A buffer used by the threaded version of readdir */
- int buffer_dim; /* The allocated size of buffer[] */
-#endif
-};
-
-static int _dr_path_is_dir(const char *pathname);
-
-/*.......................................................................
- * Create a new DirReader object.
- *
- * Output:
- * return DirReader * The new object, or NULL on error.
- */
-DirReader *_new_DirReader(void)
-{
- DirReader *dr; /* The object to be returned */
-/*
- * Allocate the container.
- */
- dr = (DirReader *) malloc(sizeof(DirReader));
- if(!dr) {
- fprintf(stderr, "_new_DirReader: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to _del_DirReader().
- */
- dr->dir = NULL;
- dr->file = NULL;
- dr->errmsg[0] = '\0';
-#ifdef USE_READDIR_R
- dr->buffer = NULL;
- dr->buffer_dim = 0;
-#endif
- return dr;
-}
-
-/*.......................................................................
- * Delete a DirReader object.
- *
- * Input:
- * dr DirReader * The object to be deleted.
- * Output:
- * return DirReader * The deleted object (always NULL).
- */
-DirReader *_del_DirReader(DirReader *dr)
-{
- if(dr) {
- _dr_close_dir(dr);
-#ifdef USE_READDIR_R
- free(dr->buffer);
-#endif
- free(dr);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Open a new directory.
- *
- * Input:
- * dr DirReader * The directory reader resource object.
- * path const char * The directory to be opened.
- * Input/Output:
- * errmsg char ** If an error occurs and errmsg isn't NULL, a
- * pointer to an error description will be assigned
- * to *errmsg.
- * Output:
- * return int 0 - OK.
- * 1 - Error (see *errmsg for a description).
- */
-int _dr_open_dir(DirReader *dr, const char *path, char **errmsg)
-{
- DIR *dir = NULL; /* The directory stream */
-/*
- * If a directory is already open, close it first.
- */
- (void) _dr_close_dir(dr);
-/*
- * Is the path a directory?
- */
- if(!_dr_path_is_dir(path)) {
- if(errmsg) {
- const char *fmt = "Can't open directory: %.*s\n";
- sprintf(dr->errmsg, fmt, ERRLEN - strlen(fmt), path);
- *errmsg = dr->errmsg;
- };
- return 1;
- };
-/*
- * Attempt to open the directory.
- */
- dir = opendir(path);
- if(!dir) {
- if(errmsg) {
- const char *fmt = "Can't open directory: %.*s\n";
- sprintf(dr->errmsg, fmt, ERRLEN - strlen(fmt), path);
- *errmsg = dr->errmsg;
- };
- return 1;
- };
-/*
- * If using POSIX threads, allocate a buffer for readdir_r().
- */
-#ifdef USE_READDIR_R
- {
- size_t size;
- int name_max = pathconf(path, _PC_NAME_MAX);
-#ifdef NAME_MAX
- if(name_max < 0)
- name_max = NAME_MAX;
-#endif
- if(name_max < 0) {
- if(errmsg) {
- strcpy(dr->errmsg, "Unable to deduce readdir() buffer size.");
- *errmsg = dr->errmsg;
- };
- closedir(dir);
- return 1;
- };
-/*
- * How big a buffer do we need to allocate?
- */
- size = sizeof(struct dirent) + name_max;
-/*
- * Extend the buffer?
- */
- if(size > dr->buffer_dim || !dr->buffer) {
- struct dirent *buffer = (struct dirent *) (dr->buffer ?
- realloc(dr->buffer, size) :
- malloc(size));
- if(!buffer) {
- if(errmsg) {
- strcpy(dr->errmsg, "Insufficient memory for readdir() buffer.");
- *errmsg = dr->errmsg;
- };
- closedir(dir);
- return 1;
- };
- dr->buffer = buffer;
- dr->buffer_dim = size;
- };
- };
-#endif
-/*
- * Record the successfully opened directory.
- */
- dr->dir = dir;
- return 0;
-}
-
-/*.......................................................................
- * If the DirReader object is currently contains an open directory,
- * close it.
- *
- * Input:
- * dr DirReader * The directory reader resource object.
- */
-void _dr_close_dir(DirReader *dr)
-{
- if(dr && dr->dir) {
- closedir(dr->dir);
- dr->dir = NULL;
- dr->file = NULL;
- dr->errmsg[0] = '\0';
- };
-}
-
-/*.......................................................................
- * Read the next file from the directory opened with _dr_open_dir().
- *
- * Input:
- * dr DirReader * The directory reader resource object.
- * Output:
- * return char * The name of the new file, or NULL if we reached
- * the end of the directory.
- */
-char *_dr_next_file(DirReader *dr)
-{
-/*
- * Are we currently reading a directory?
- */
- if(dr->dir) {
-/*
- * Read the next directory entry.
- */
-#ifdef USE_READDIR_R
- if(readdir_r(dr->dir, dr->buffer, &dr->file) == 0 && dr->file)
- return dr->file->d_name;
-#else
- dr->file = readdir(dr->dir);
- if(dr->file)
- return dr->file->d_name;
-#endif
- };
-/*
- * When the end of a directory is reached, close it.
- */
- _dr_close_dir(dr);
- return NULL;
-}
-
-/*.......................................................................
- * Return 1 if the specified pathname refers to a directory.
- *
- * Input:
- * pathname const char * The path to test.
- * Output:
- * return int 0 - Not a directory.
- * 1 - pathname[] refers to a directory.
- */
-static int _dr_path_is_dir(const char *pathname)
-{
- struct stat statbuf; /* The file-statistics return buffer */
-/*
- * Look up the file attributes.
- */
- if(stat(pathname, &statbuf) < 0)
- return 0;
-/*
- * Is the file a directory?
- */
- return S_ISDIR(statbuf.st_mode) != 0;
-}
diff --git a/libtecla-1.4.1/direader.h b/libtecla-1.4.1/direader.h
deleted file mode 100644
index 2cf178e..0000000
--- a/libtecla-1.4.1/direader.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef dirreader_h
-#define dirreader_h
-
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-typedef struct DirReader DirReader;
-
-DirReader *_new_DirReader(void);
-DirReader *_del_DirReader(DirReader *dr);
-
-int _dr_open_dir(DirReader *dr, const char *pathname, char **errmsg);
-char *_dr_next_file(DirReader *dr);
-void _dr_close_dir(DirReader *dr);
-
-#endif
diff --git a/libtecla-1.4.1/enhance.c b/libtecla-1.4.1/enhance.c
deleted file mode 100644
index 72f5061..0000000
--- a/libtecla-1.4.1/enhance.c
+++ /dev/null
@@ -1,689 +0,0 @@
-#include
-#include
-#include
-#include
-#include
-#include
-
-#include
-#include
-
-#include
-#include
-#include
-#include
-#include
-
-#if HAVE_SYSV_PTY
-#include /* System-V stream I/O */
-char *ptsname(int fd);
-int grantpt(int fd);
-int unlockpt(int fd);
-#endif
-
-#include "libtecla.h"
-
-/*
- * Pseudo-terminal devices are found in the following directory.
- */
-#define PTY_DEV_DIR "/dev/"
-
-/*
- * Pseudo-terminal controller device file names start with the following
- * prefix.
- */
-#define PTY_CNTRL "pty"
-
-/*
- * Pseudo-terminal slave device file names start with the following
- * prefix.
- */
-#define PTY_SLAVE "tty"
-
-/*
- * Specify the maximum suffix length for the control and slave device
- * names.
- */
-#define PTY_MAX_SUFFIX 10
-
-/*
- * Set the maximum length of the master and slave terminal device filenames,
- * including space for a terminating '\0'.
- */
-#define PTY_MAX_NAME (sizeof(PTY_DEV_DIR)-1 + \
- (sizeof(PTY_SLAVE) > sizeof(PTY_CNTRL) ? \
- sizeof(PTY_SLAVE) : sizeof(PTY_CNTRL))-1 \
- + PTY_MAX_SUFFIX + 1)
-/*
- * Set the maximum length of an input line.
- */
-#define PTY_MAX_LINE 4096
-
-/*
- * Set the size of the buffer used for accumulating bytes written by the
- * user's terminal to its stdout.
- */
-#define PTY_MAX_READ 1000
-
-/*
- * Set the amount of memory used to record history.
- */
-#define PTY_HIST_SIZE 10000
-
-/*
- * Set the timeout delay used to check for quickly arriving
- * sequential output from the application.
- */
-#define PTY_READ_TIMEOUT 100000 /* micro-seconds */
-
-static int pty_open_master(const char *prog, int *cntrl, char *slave_name);
-static int pty_open_slave(const char *prog, char *slave_name);
-static int pty_child(const char *prog, int slave, char *argv[]);
-static int pty_parent(const char *prog, int cntrl);
-static int pty_stop_parent(int waserr, int cntrl, GetLine *gl, char *rbuff);
-static GL_FD_EVENT_FN(pty_read_from_program);
-static int pty_write_to_fd(int fd, const char *string, int n);
-static void pty_child_exited(int sig);
-static int pty_master_readable(int fd, long usec);
-
-/*.......................................................................
- * Run a program with enhanced terminal editing facilities.
- *
- * Usage:
- * enhance program [args...]
- */
-int main(int argc, char *argv[])
-{
- int cntrl = -1; /* The fd of the pseudo-terminal controller device */
- int slave = -1; /* The fd of the pseudo-terminal slave device */
- pid_t pid; /* The return value of fork() */
- int status; /* The return statuses of the parent and child functions */
- char slave_name[PTY_MAX_NAME]; /* The filename of the slave end of the */
- /* pseudo-terminal. */
- char *prog; /* The name of the program (ie. argv[0]) */
-/*
- * Check the arguments.
- */
- if(argc < 2) {
- fprintf(stderr, "Usage: %s [arguments...]\n", argv[0]);
- return 1;
- };
-/*
- * Get the name of the program.
- */
- prog = argv[0];
-/*
- * If the user has the LC_CTYPE or LC_ALL environment variables set,
- * enable display of characters corresponding to the specified locale.
- */
- (void) setlocale(LC_CTYPE, "");
-/*
- * If the program is taking its input from a pipe or a file, or
- * sending its output to something other than a terminal, run the
- * program without tecla.
- */
- if(!isatty(STDIN_FILENO) || !isatty(STDOUT_FILENO)) {
- if(execvp(argv[1], argv + 1) < 0) {
- fprintf(stderr, "%s: Unable to execute %s (%s).\n", prog, argv[1],
- strerror(errno));
- fflush(stderr);
- _exit(1);
- };
- };
-/*
- * Open the master side of a pseudo-terminal pair, and return
- * the corresponding file descriptor and the filename of the
- * slave end of the pseudo-terminal.
- */
- if(pty_open_master(prog, &cntrl, slave_name))
- return 1;
-/*
- * Set up a signal handler to watch for the child process exiting.
- */
- signal(SIGCHLD, pty_child_exited);
-/*
- * The above signal handler sends the parent process a SIGINT signal.
- * This signal is caught by gl_get_line(), which resets the terminal
- * settings, and if the application signal handler for this signal
- * doesn't abort the process, gl_get_line() returns NULL with errno
- * set to EINTR. Arrange to ignore the signal, so that gl_get_line()
- * returns and we have a chance to cleanup.
- */
- signal(SIGINT, SIG_IGN);
-/*
- * We will read user input in one process, and run the user's program
- * in a child process.
- */
- pid = fork();
- if(pid < 0) {
- fprintf(stderr, "%s: Unable to fork child process (%s).\n", prog,
- strerror(errno));
- return 1;
- };
-/*
- * Are we the parent?
- */
- if(pid!=0) {
- status = pty_parent(prog, cntrl);
- close(cntrl);
- } else {
- close(cntrl); /* The child doesn't use the slave device */
- signal(SIGCHLD, pty_child_exited);
- if((slave = pty_open_slave(prog, slave_name)) >= 0) {
- status = pty_child(prog, slave, argv + 1);
- close(slave);
- } else {
- status = 1;
- };
- };
- return status;
-}
-
-/*.......................................................................
- * Open the master side of a pseudo-terminal pair, and return
- * the corresponding file descriptor and the filename of the
- * slave end of the pseudo-terminal.
- *
- * Input/Output:
- * prog const char * The name of this program.
- * cntrl int * The file descriptor of the pseudo-terminal
- * controller device will be assigned tp *cntrl.
- * slave_name char * The file-name of the pseudo-terminal slave device
- * will be recorded in slave_name[], which must have
- * at least PTY_MAX_NAME elements.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int pty_open_master(const char *prog, int *cntrl, char *slave_name)
-{
- char master_name[PTY_MAX_NAME]; /* The filename of the master device */
- DIR *dir; /* The directory iterator */
- struct dirent *file; /* A file in "/dev" */
-/*
- * Mark the controller device as not opened yet.
- */
- *cntrl = -1;
-/*
- * On systems with the Sys-V pseudo-terminal interface, we don't
- * have to search for a free master terminal. We just open /dev/ptmx,
- * and if there is a free master terminal device, we are given a file
- * descriptor connected to it.
- */
-#if HAVE_SYSV_PTY
- *cntrl = open("/dev/ptmx", O_RDWR);
- if(*cntrl >= 0) {
-/*
- * Get the filename of the slave side of the pseudo-terminal.
- */
- char *name = ptsname(*cntrl);
- if(name) {
- if(strlen(name)+1 > PTY_MAX_NAME) {
- fprintf(stderr, "%s: Slave pty filename too long.\n", prog);
- return 1;
- };
- strcpy(slave_name, name);
-/*
- * If unable to get the slave name, discard the controller file descriptor,
- * ready to try a search instead.
- */
- } else {
- close(*cntrl);
- *cntrl = -1;
- };
- } else {
-#endif
-/*
- * On systems without /dev/ptmx, or if opening /dev/ptmx failed,
- * we open one master terminal after another, until one that isn't
- * in use by another program is found.
- *
- * Open the devices directory.
- */
- dir = opendir(PTY_DEV_DIR);
- if(!dir) {
- fprintf(stderr, "%s: Couldn't open %s (%s)\n", prog, PTY_DEV_DIR,
- strerror(errno));
- return 1;
- };
-/*
- * Look for pseudo-terminal controller device files in the devices
- * directory.
- */
- while(*cntrl < 0 && (file = readdir(dir))) {
- if(strncmp(file->d_name, PTY_CNTRL, sizeof(PTY_CNTRL)-1) == 0) {
-/*
- * Get the common extension of the control and slave filenames.
- */
- const char *ext = file->d_name + sizeof(PTY_CNTRL)-1;
- if(strlen(ext) > PTY_MAX_SUFFIX)
- continue;
-/*
- * Attempt to open the control file.
- */
- strcpy(master_name, PTY_DEV_DIR);
- strcat(master_name, PTY_CNTRL);
- strcat(master_name, ext);
- *cntrl = open(master_name, O_RDWR);
- if(*cntrl < 0)
- continue;
-/*
- * Attempt to open the matching slave file.
- */
- strcpy(slave_name, PTY_DEV_DIR);
- strcat(slave_name, PTY_SLAVE);
- strcat(slave_name, ext);
- };
- };
- closedir(dir);
-#if HAVE_SYSV_PTY
- };
-#endif
-/*
- * Did we fail to find a pseudo-terminal pair that we could open?
- */
- if(*cntrl < 0) {
- fprintf(stderr, "%s: Unable to find a free pseudo-terminal.\n", prog);
- return 1;
- };
-/*
- * System V systems require the program that opens the master to
- * grant access to the slave side of the pseudo-terminal.
- */
-#ifdef HAVE_SYSV_PTY
- if(grantpt(*cntrl) < 0 ||
- unlockpt(*cntrl) < 0) {
- fprintf(stderr, "%s: Unable to unlock terminal (%s).\n", prog,
- strerror(errno));
- return 1;
- };
-#endif
-/*
- * Success.
- */
- return 0;
-}
-
-/*.......................................................................
- * Open the slave end of a pseudo-terminal.
- *
- * Input:
- * prog const char * The name of this program.
- * slave_name char * The filename of the slave device.
- * Output:
- * return int The file descriptor of the successfully opened
- * slave device, or < 0 on error.
- */
-static int pty_open_slave(const char *prog, char *slave_name)
-{
- int fd; /* The file descriptor of the slave device */
-/*
- * Place the process in its own process group. In system-V based
- * OS's, this ensures that when the pseudo-terminal is opened, it
- * becomes the controlling terminal of the process.
- */
- if(setsid() < 0) {
- fprintf(stderr, "%s: Unable to form new process group (%s).\n", prog,
- strerror(errno));
- return -1;
- };
-/*
- * Attempt to open the specified device.
- */
- fd = open(slave_name, O_RDWR);
- if(fd < 0) {
- fprintf(stderr, "%s: Unable to open pseudo-terminal slave device (%s).\n",
- prog, strerror(errno));
- return -1;
- };
-/*
- * On system-V streams based systems, we need to push the stream modules
- * that implement pseudo-terminal and termio interfaces. At least on
- * Solaris, which pushes these automatically when a slave is opened,
- * this is redundant, so ignore errors when pushing the modules.
- */
-#if HAVE_SYSV_PTY
- (void) ioctl(fd, I_PUSH, "ptem");
- (void) ioctl(fd, I_PUSH, "ldterm");
-/*
- * On BSD based systems other than SunOS 4.x, the following makes the
- * pseudo-terminal the controlling terminal of the child process.
- * According to the pseudo-terminal example code in Steven's
- * Advanced programming in the unix environment, the !defined(CIBAUD)
- * part of the clause prevents this from being used under SunOS. Since
- * I only have his code with me, and won't have access to the book,
- * I don't know why this is necessary.
- */
-#elif defined(TIOCSCTTY) && !defined(CIBAUD)
- if(ioctl(fd, TIOCSCTTY, (char *) 0) < 0) {
- fprintf(stderr, "%s: Unable to establish controlling terminal (%s).\n",
- prog, strerror(errno));
- close(fd);
- return -1;
- };
-#endif
- return fd;
-}
-
-/*.......................................................................
- * Read input from the controlling terminal of the program, using
- * gl_get_line(), and feed it to the user's program running in a child
- * process, via the controller side of the pseudo-terminal. Also pass
- * data received from the user's program via the conroller end of
- * the pseudo-terminal, to stdout.
- *
- * Input:
- * prog const char * The name of this program.
- * cntrl int The file descriptor of the controller end of the
- * pseudo-terminal.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int pty_parent(const char *prog, int cntrl)
-{
- GetLine *gl = NULL; /* The gl_get_line() resource object */
- char *line; /* An input line read from the user */
- char *rbuff=NULL; /* A buffer for reading from the pseudo terminal */
-/*
- * Allocate the gl_get_line() resource object.
- */
- gl = new_GetLine(PTY_MAX_LINE, PTY_HIST_SIZE);
- if(!gl)
- return pty_stop_parent(1, cntrl, gl, rbuff);
-/*
- * Allocate a buffer to use to accumulate bytes read from the
- * pseudo-terminal.
- */
- rbuff = (char *) malloc(PTY_MAX_READ+1);
- if(!rbuff)
- return pty_stop_parent(1, cntrl, gl, rbuff);
- rbuff[0] = '\0';
-/*
- * Register an event handler to watch for data appearing from the
- * user's program on the controller end of the pseudo terminal.
- */
- if(gl_watch_fd(gl, cntrl, GLFD_READ, pty_read_from_program, rbuff))
- return pty_stop_parent(1, cntrl, gl, rbuff);
-/*
- * Read input lines from the user and pass them on to the user's program,
- * by writing to the controller end of the pseudo-terminal.
- */
- while((line=gl_get_line(gl, rbuff, NULL, 0))) {
- if(pty_write_to_fd(cntrl, line, strlen(line)))
- return pty_stop_parent(1, cntrl, gl, rbuff);
- rbuff[0] = '\0';
- };
- return pty_stop_parent(0, cntrl, gl, rbuff);
-}
-
-/*.......................................................................
- * This is a private return function of pty_parent(), used to release
- * dynamically allocated resources, close the controller end of the
- * pseudo-terminal, and wait for the child to exit. It returns the
- * exit status of the child process, unless the caller reports an
- * error itself, in which case the caller's error status is returned.
- *
- * Input:
- * waserr int True if the caller is calling this function because
- * an error occured.
- * cntrl int The file descriptor of the controller end of the
- * pseudo-terminal.
- * gl GetLine * The resource object of gl_get_line().
- * rbuff char * The buffer used to accumulate bytes read from
- * the pseudo-terminal.
- * Output:
- * return int The desired exit status of the program.
- */
-static int pty_stop_parent(int waserr, int cntrl, GetLine *gl, char *rbuff)
-{
- int status; /* The return status of the child process */
-/*
- * Close the controller end of the terminal.
- */
- close(cntrl);
-/*
- * Delete the resource object.
- */
- gl = del_GetLine(gl);
-/*
- * Delete the read buffer.
- */
- if(rbuff)
- free(rbuff);
-/*
- * Wait for the user's program to end.
- */
- (void) wait(&status);
-/*
- * Return either our error status, or the return status of the child
- * program.
- */
- return waserr ? 1 : status;
-}
-
-/*.......................................................................
- * Run the user's program, with its stdin and stdout connected to the
- * slave end of the psuedo-terminal.
- *
- * Input:
- * prog const char * The name of this program.
- * slave int The file descriptor of the slave end of the
- * pseudo terminal.
- * argv char *[] The argument vector to pass to the user's program,
- * where argv[0] is the name of the user's program,
- * and the last argument is followed by a pointer
- * to NULL.
- * Output:
- * return int If this function returns at all, an error must
- * have occured when trying to overlay the process
- * with the user's program. In this case 1 is
- * returned.
- */
-static int pty_child(const char *prog, int slave, char *argv[])
-{
- struct termios attr; /* The terminal attributes */
-/*
- * We need to stop the pseudo-terminal from echoing everything that we send it.
- */
- if(tcgetattr(slave, &attr)) {
- fprintf(stderr, "%s: Can't get pseudo-terminal attributes (%s).\n", prog,
- strerror(errno));
- return 1;
- };
- attr.c_lflag &= ~(ECHO);
- while(tcsetattr(slave, TCSADRAIN, &attr)) {
- if(errno != EINTR) {
- fprintf(stderr, "%s: tcsetattr error: %s\n", prog, strerror(errno));
- return 1;
- };
- };
-/*
- * Arrange for stdin, stdout and stderr to be connected to the slave device,
- * ignoring errors that imply that either stdin or stdout is closed.
- */
- while(dup2(slave, STDIN_FILENO) < 0 && errno==EINTR)
- ;
- while(dup2(slave, STDOUT_FILENO) < 0 && errno==EINTR)
- ;
- while(dup2(slave, STDERR_FILENO) < 0 && errno==EINTR)
- ;
-/*
- * Run the user's program.
- */
- if(execvp(argv[0], argv) < 0) {
- fprintf(stderr, "%s: Unable to execute %s (%s).\n", prog, argv[0],
- strerror(errno));
- fflush(stderr);
- _exit(1);
- };
- return 0; /* This should never be reached */
-}
-
-/*.......................................................................
- * This is the event-handler that is called by gl_get_line() whenever
- * there is tet waiting to be read from the user's program, via the
- * controller end of the pseudo-terminal. See libtecla.h for details
- * about its arguments.
- */
-static GL_FD_EVENT_FN(pty_read_from_program)
-{
- char *nlptr; /* A pointer to the last newline in the accumulated string */
- char *crptr; /* A pointer to the last '\r' in the accumulated string */
- char *nextp; /* A pointer to the next unprocessed character */
-/*
- * Get the read buffer in which we are accumulating a line to be
- * forwarded to stdout.
- */
- char *rbuff = (char *) data;
-/*
- * New data may arrive while we are processing the current read, and
- * it is more efficient to display this here than to keep returning to
- * gl_get_line() and have it display the latest prefix as a prompt,
- * followed by the current input line, so we loop, delaying a bit at
- * the end of each iteration to check for more data arriving from
- * the application, before finally returning to gl_get_line() when
- * no more input is available.
- */
- do {
-/*
- * Get the current length of the output string.
- */
- int len = strlen(rbuff);
-/*
- * Read the text from the program.
- */
- int nnew = read(fd, rbuff + len, PTY_MAX_READ - len);
- if(nnew < 0)
- return GLFD_ABORT;
- len += nnew;
-/*
- * Nul terminate the accumulated string.
- */
- rbuff[len] = '\0';
-/*
- * Find the last newline and last carriage return in the buffer, if any.
- */
- nlptr = strrchr(rbuff, '\n');
- crptr = strrchr(rbuff, '\r');
-/*
- * We want to output up to just before the last newline or carriage
- * return. If there are no newlines of carriage returns in the line,
- * and the buffer is full, then we should output the whole line. In
- * all cases a new output line will be started after the latest text
- * has been output. The intention is to leave any incomplete line
- * in the buffer, for (perhaps temporary) use as the current prompt.
- */
- if(nlptr) {
- nextp = crptr && crptr < nlptr ? crptr : nlptr;
- } else if(crptr) {
- nextp = crptr;
- } else if(len >= PTY_MAX_READ) {
- nextp = rbuff + len;
- } else {
- nextp = NULL;
- };
-/*
- * Do we have any text to output yet?
- */
- if(nextp) {
-/*
- * If there was already some text in rbuff before this function
- * was called, then it will have been used as a prompt. Arrange
- * to rewrite this prefix, plus the new suffix, by moving back to
- * the start of the line.
- */
- if(len > 0)
- (void) pty_write_to_fd(STDOUT_FILENO, "\r", 1);
-/*
- * Write everything up to the last newline to stdout.
- */
- (void) pty_write_to_fd(STDOUT_FILENO, rbuff, nextp - rbuff);
-/*
- * Start a new line.
- */
- (void) pty_write_to_fd(STDOUT_FILENO, "\r\n", 2);
-/*
- * Skip trailing carriage returns and newlines.
- */
- while(*nextp=='\n' || *nextp=='\r')
- nextp++;
-/*
- * Move any unwritten text following the newline, to the start of the
- * buffer.
- */
- memmove(rbuff, nextp, len - (nextp - rbuff) + 1);
- };
- } while(pty_master_readable(fd, PTY_READ_TIMEOUT));
-/*
- * Make the incomplete line in the output buffer the current prompt.
- */
- gl_replace_prompt(gl, rbuff);
- return GLFD_REFRESH;
-}
-
-/*.......................................................................
- * Write a given string to a specified file descriptor.
- *
- * Input:
- * fd int The file descriptor to write to.
- * string const char * The string to write (of at least 'n' characters).
- * n int The number of characters to write.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int pty_write_to_fd(int fd, const char *string, int n)
-{
- int ndone = 0; /* The number of characters written so far */
-/*
- * Do as many writes as are needed to write the whole string.
- */
- while(ndone < n) {
- int nnew = write(fd, string + ndone, n - ndone);
- if(nnew > 0)
- ndone += nnew;
- else if(errno != EINTR)
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * This is the signal handler that is called when the child process
- * that is running the user's program exits for any reason. It closes
- * the slave end of the terminal, so that gl_get_line() in the parent
- * process sees an end of file.
- */
-static void pty_child_exited(int sig)
-{
- raise(SIGINT);
-}
-
-/*.......................................................................
- * Return non-zero after a given amount of time if there is data waiting
- * to be read from a given file descriptor.
- *
- * Input:
- * fd int The descriptor to watch.
- * usec long The number of micro-seconds to wait for input to
- * arrive before giving up.
- * Output:
- * return int 0 - No data is waiting to be read (or select isn't
- * available).
- * 1 - Data is waiting to be read.
- */
-static int pty_master_readable(int fd, long usec)
-{
-#if HAVE_SELECT
- fd_set rfds; /* The set of file descriptors to check */
- struct timeval timeout; /* The timeout */
- FD_ZERO(&rfds);
- FD_SET(fd, &rfds);
- timeout.tv_sec = 0;
- timeout.tv_usec = usec;
- return select(fd+1, &rfds, NULL, NULL, &timeout) == 1;
-#else
- return 0;
-#endif
-}
diff --git a/libtecla-1.4.1/expand.c b/libtecla-1.4.1/expand.c
deleted file mode 100644
index c1600ab..0000000
--- a/libtecla-1.4.1/expand.c
+++ /dev/null
@@ -1,1265 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include
-#include
-#include
-#include
-
-#include "freelist.h"
-#include "direader.h"
-#include "pathutil.h"
-#include "homedir.h"
-#include "stringrp.h"
-#include "libtecla.h"
-
-/*
- * Specify the number of elements to extend the files[] array by
- * when it proves to be too small. This also sets the initial size
- * of the array.
- */
-#define MATCH_BLK_FACT 256
-
-/*
- * A list of directory iterators is maintained using nodes of the
- * following form.
- */
-typedef struct DirNode DirNode;
-struct DirNode {
- DirNode *next; /* The next directory in the list */
- DirNode *prev; /* The node that precedes this node in the list */
- DirReader *dr; /* The directory reader object */
-};
-
-typedef struct {
- FreeList *mem; /* Memory for DirNode list nodes */
- DirNode *head; /* The head of the list of used and unused cache nodes */
- DirNode *next; /* The next unused node between head and tail */
- DirNode *tail; /* The tail of the list of unused cache nodes */
-} DirCache;
-
-/*
- * Specify how many directory cache nodes to allocate at a time.
- */
-#define DIR_CACHE_BLK 20
-
-/*
- * Set the maximum length allowed for usernames.
- */
-#define USR_LEN 100
-
-/*
- * Set the maximum length allowed for environment variable names.
- */
-#define ENV_LEN 100
-
-/*
- * Set the max length of the error-reporting string. There is no point
- * in this being longer than the width of a typical terminal window.
- * In composing error messages, I have assumed that this number is
- * at least 80, so you don't decrease it below this number.
- */
-#define ERRLEN 200
-
-struct ExpandFile {
- StringGroup *sg; /* A list of string segments in which */
- /* matching filenames are stored. */
- DirCache cache; /* The cache of directory reader objects */
- PathName *path; /* The pathname being matched */
- HomeDir *home; /* Home-directory lookup object */
- int files_dim; /* The allocated dimension of result.files[] */
- char usrnam[USR_LEN+1]; /* A user name */
- char envnam[ENV_LEN+1]; /* An environment variable name */
- char errmsg[ERRLEN+1]; /* Error-report buffer */
- FileExpansion result; /* The container used to return the results of */
- /* expanding a path. */
-};
-
-static int ef_record_pathname(ExpandFile *ef, const char *pathname,
- int remove_escapes);
-static char *ef_cache_pathname(ExpandFile *ef, const char *pathname,
- int remove_escapes);
-static void ef_clear_files(ExpandFile *ef);
-
-static DirNode *ef_open_dir(ExpandFile *ef, const char *pathname);
-static DirNode *ef_close_dir(ExpandFile *ef, DirNode *node);
-static char *ef_expand_special(ExpandFile *ef, const char *path, int pathlen);
-static int ef_match_relative_pathname(ExpandFile *ef, DirReader *dr,
- const char *pattern, int separate);
-static int ef_matches_range(int c, const char *pattern, const char **endp);
-static int ef_string_matches_pattern(const char *file, const char *pattern,
- int xplicit, const char *nextp);
-static int ef_cmp_strings(const void *v1, const void *v2);
-
-/*.......................................................................
- * Create the resources needed to expand filenames.
- *
- * Output:
- * return ExpandFile * The new object, or NULL on error.
- */
-ExpandFile *new_ExpandFile(void)
-{
- ExpandFile *ef; /* The object to be returned */
-/*
- * Allocate the container.
- */
- ef = (ExpandFile *) malloc(sizeof(ExpandFile));
- if(!ef) {
- fprintf(stderr, "new_ExpandFile: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to del_ExpandFile().
- */
- ef->sg = NULL;
- ef->cache.mem = NULL;
- ef->cache.head = NULL;
- ef->cache.next = NULL;
- ef->cache.tail = NULL;
- ef->path = NULL;
- ef->home = NULL;
- ef->result.files = NULL;
- ef->result.nfile = 0;
- ef->usrnam[0] = '\0';
- ef->envnam[0] = '\0';
- ef->errmsg[0] = '\0';
-/*
- * Allocate a list of string segments for storing filenames.
- */
- ef->sg = _new_StringGroup(_pu_pathname_dim());
- if(!ef->sg)
- return del_ExpandFile(ef);
-/*
- * Allocate a freelist for allocating directory cache nodes.
- */
- ef->cache.mem = _new_FreeList("new_ExpandFile", sizeof(DirNode), DIR_CACHE_BLK);
- if(!ef->cache.mem)
- return del_ExpandFile(ef);
-/*
- * Allocate a pathname buffer.
- */
- ef->path = _new_PathName();
- if(!ef->path)
- return del_ExpandFile(ef);
-/*
- * Allocate an object for looking up home-directories.
- */
- ef->home = _new_HomeDir();
- if(!ef->home)
- return del_ExpandFile(ef);
-/*
- * Allocate an array for files. This will be extended later if needed.
- */
- ef->files_dim = MATCH_BLK_FACT;
- ef->result.files = (char **) malloc(sizeof(ef->result.files[0]) *
- ef->files_dim);
- if(!ef->result.files) {
- fprintf(stderr,
- "new_ExpandFile: Insufficient memory to allocate array of files.\n");
- return del_ExpandFile(ef);
- };
- return ef;
-}
-
-/*.......................................................................
- * Delete a ExpandFile object.
- *
- * Input:
- * ef ExpandFile * The object to be deleted.
- * Output:
- * return ExpandFile * The deleted object (always NULL).
- */
-ExpandFile *del_ExpandFile(ExpandFile *ef)
-{
- if(ef) {
- DirNode *dnode;
-/*
- * Delete the string segments.
- */
- ef->sg = _del_StringGroup(ef->sg);
-/*
- * Delete the cached directory readers.
- */
- for(dnode=ef->cache.head; dnode; dnode=dnode->next)
- dnode->dr = _del_DirReader(dnode->dr);
-/*
- * Delete the memory from which the DirNode list was allocated, thus
- * deleting the list at the same time.
- */
- ef->cache.mem = _del_FreeList("del_ExpandFile", ef->cache.mem, 1);
- ef->cache.head = ef->cache.tail = ef->cache.next = NULL;
-/*
- * Delete the pathname buffer.
- */
- ef->path = _del_PathName(ef->path);
-/*
- * Delete the home-directory lookup object.
- */
- ef->home = _del_HomeDir(ef->home);
-/*
- * Delete the array of pointers to files.
- */
- if(ef->result.files) {
- free(ef->result.files);
- ef->result.files = NULL;
- };
-/*
- * Delete the container.
- */
- free(ef);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Expand a pathname, converting ~user/ and ~/ patterns at the start
- * of the pathname to the corresponding home directories, replacing
- * $envvar with the value of the corresponding environment variable,
- * and then, if there are any wildcards, matching these against existing
- * filenames.
- *
- * If no errors occur, a container is returned containing the array of
- * files that resulted from the expansion. If there were no wildcards
- * in the input pathname, this will contain just the original pathname
- * after expansion of ~ and $ expressions. If there were any wildcards,
- * then the array will contain the files that matched them. Note that
- * if there were any wildcards but no existing files match them, this
- * is counted as an error and NULL is returned.
- *
- * The supported wildcards and their meanings are:
- * * - Match any sequence of zero or more characters.
- * ? - Match any single character.
- * [chars] - Match any single character that appears in 'chars'.
- * If 'chars' contains an expression of the form a-b,
- * then any character between a and b, including a and b,
- * matches. The '-' character looses its special meaning
- * as a range specifier when it appears at the start
- * of the sequence of characters.
- * [^chars] - The same as [chars] except that it matches any single
- * character that doesn't appear in 'chars'.
- *
- * Wildcard expressions are applied to individual filename components.
- * They don't match across directory separators. A '.' character at
- * the beginning of a filename component must also be matched
- * explicitly by a '.' character in the input pathname, since these
- * are UNIX's hidden files.
- *
- * Input:
- * ef ExpandFile * The pathname expansion resource object.
- * path char * The path name to be expanded.
- * pathlen int The length of the suffix of path[] that
- * constitutes the filename to be expanded,
- * or -1 to specify that the whole of the
- * path string should be used. Note that
- * regardless of the value of this argument,
- * path[] must contain a '\0' terminated
- * string, since this function checks that
- * pathlen isn't mistakenly too long.
- * Output:
- * return FileExpansion * A pointer to a container within the given
- * ExpandFile object. This contains an array
- * of the pathnames that resulted from expanding
- * ~ and $ expressions and from matching any
- * wildcards, sorted into lexical order.
- * This container and its contents will be
- * recycled on subsequent calls, so if you need
- * to keep the results of two successive runs,
- * you will either have to allocate a private
- * copy of the array, or use two ExpandFile
- * objects.
- *
- * On error NULL is returned. A description
- * of the error can be acquired by calling the
- * ef_last_error() function.
- */
-FileExpansion *ef_expand_file(ExpandFile *ef, const char *path, int pathlen)
-{
- DirNode *dnode; /* A directory-reader cache node */
- const char *dirname; /* The name of the top level directory of the search */
- const char *pptr; /* A pointer into path[] */
- int wild; /* True if the path contains any wildcards */
-/*
- * Check the arguments.
- */
- if(!ef || !path) {
- if(ef)
- strcpy(ef->errmsg, "ef_expand_file: NULL path argument");
- else
- fprintf(stderr, "ef_expand_file: NULL argument(s).\n");
- return NULL;
- };
-/*
- * If the caller specified that the whole of path[] be matched,
- * work out the corresponding length.
- */
- if(pathlen < 0 || pathlen > strlen(path))
- pathlen = strlen(path);
-/*
- * Discard previous expansion results.
- */
- ef_clear_files(ef);
-/*
- * Preprocess the path, expanding ~/, ~user/ and $envvar references,
- * using ef->path as a work directory and returning a pointer to
- * a copy of the resulting pattern in the cache.
- */
- path = ef_expand_special(ef, path, pathlen);
- if(!path)
- return NULL;
-/*
- * Clear the pathname buffer.
- */
- _pn_clear_path(ef->path);
-/*
- * Does the pathname contain any wildcards?
- */
- for(wild=0,pptr=path; !wild && *pptr; pptr++) {
- switch(*pptr) {
- case '\\': /* Skip escaped characters */
- if(pptr[1])
- pptr++;
- break;
- case '*': case '?': case '[': /* A wildcard character? */
- wild = 1;
- break;
- };
- };
-/*
- * If there are no wildcards to match, copy the current expanded
- * path into the output array, removing backslash escapes while doing so.
- */
- if(!wild) {
- if(ef_record_pathname(ef, path, 1))
- return NULL;
-/*
- * Does the filename exist?
- */
- ef->result.exists = _pu_file_exists(ef->result.files[0]);
-/*
- * Match wildcards against existing files.
- */
- } else {
-/*
- * Only existing files that match the pattern will be returned in the
- * cache.
- */
- ef->result.exists = 1;
-/*
- * Treat matching of the root-directory as a special case since it
- * isn't contained in a directory.
- */
- if(strcmp(path, FS_ROOT_DIR) == 0) {
- if(ef_record_pathname(ef, FS_ROOT_DIR, 0))
- return NULL;
- } else {
-/*
- * What should the top level directory of the search be?
- */
- if(strncmp(path, FS_ROOT_DIR, FS_ROOT_DIR_LEN) == 0) {
- dirname = FS_ROOT_DIR;
- if(!_pn_append_to_path(ef->path, FS_ROOT_DIR, -1, 0)) {
- strcpy(ef->errmsg, "Insufficient memory to record path");
- return NULL;
- };
- path += FS_ROOT_DIR_LEN;
- } else {
- dirname = FS_PWD;
- };
-/*
- * Open the top-level directory of the search.
- */
- dnode = ef_open_dir(ef, dirname);
- if(!dnode)
- return NULL;
-/*
- * Recursively match successive directory components of the path.
- */
- if(ef_match_relative_pathname(ef, dnode->dr, path, 0)) {
- dnode = ef_close_dir(ef, dnode);
- return NULL;
- };
-/*
- * Cleanup.
- */
- dnode = ef_close_dir(ef, dnode);
- };
-/*
- * No files matched?
- */
- if(ef->result.nfile < 1) {
- strcpy(ef->errmsg, "No files match");
- return NULL;
- };
-/*
- * Sort the pathnames that matched.
- */
- qsort(ef->result.files, ef->result.nfile, sizeof(ef->result.files[0]),
- ef_cmp_strings);
- };
-/*
- * Return the result container.
- */
- return &ef->result;
-}
-
-/*.......................................................................
- * Attempt to recursively match the given pattern with the contents of
- * the current directory, descending sub-directories as needed.
- *
- * Input:
- * ef ExpandFile * The pathname expansion resource object.
- * dr DirReader * The directory reader object of the directory
- * to be searched.
- * pattern const char * The pattern to match with files in the current
- * directory.
- * separate int When appending a filename from the specified
- * directory to ef->pathname, insert a directory
- * separator between the existing pathname and
- * the filename, unless separate is zero.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int ef_match_relative_pathname(ExpandFile *ef, DirReader *dr,
- const char *pattern, int separate)
-{
- const char *nextp; /* The pointer to the character that follows the part */
- /* of the pattern that is to be matched with files */
- /* in the current directory. */
- char *file; /* The name of the file being matched */
- int pathlen; /* The length of ef->pathname[] on entry to this */
- /* function */
-/*
- * Record the current length of the pathname string recorded in
- * ef->pathname[].
- */
- pathlen = strlen(ef->path->name);
-/*
- * Get a pointer to the character that follows the end of the part of
- * the pattern that should be matched to files within the current directory.
- * This will either point to a directory separator, or to the '\0' terminator
- * of the pattern string.
- */
- for(nextp=pattern; *nextp && strncmp(nextp, FS_DIR_SEP, FS_DIR_SEP_LEN) != 0;
- nextp++)
- ;
-/*
- * Read each file from the directory, attempting to match it to the
- * current pattern.
- */
- while((file=_dr_next_file(dr)) != NULL) {
-/*
- * Does the latest file match the pattern up to nextp?
- */
- if(ef_string_matches_pattern(file, pattern, file[0]=='.', nextp)) {
-/*
- * Append the new directory entry to the current matching pathname.
- */
- if((separate && _pn_append_to_path(ef->path, FS_DIR_SEP, -1, 0)==NULL) ||
- _pn_append_to_path(ef->path, file, -1, 0)==NULL) {
- strcpy(ef->errmsg, "Insufficient memory to record path");
- return 1;
- };
-/*
- * If we have reached the end of the pattern, record the accumulated
- * pathname in the list of matching files.
- */
- if(*nextp == '\0') {
- if(ef_record_pathname(ef, ef->path->name, 0))
- return 1;
-/*
- * If the matching directory entry is a subdirectory, and the
- * next character of the pattern is a directory separator,
- * recursively call the current function to scan the sub-directory
- * for matches.
- */
- } else if(_pu_path_is_dir(ef->path->name) &&
- strncmp(nextp, FS_DIR_SEP, FS_DIR_SEP_LEN) == 0) {
-/*
- * If the pattern finishes with the directory separator, then
- * record the pathame as matching.
- */
- if(nextp[FS_DIR_SEP_LEN] == '\0') {
- if(ef_record_pathname(ef, ef->path->name, 0))
- return 1;
-/*
- * Match files within the directory.
- */
- } else {
- DirNode *subdnode = ef_open_dir(ef, ef->path->name);
- if(subdnode) {
- if(ef_match_relative_pathname(ef, subdnode->dr,
- nextp+FS_DIR_SEP_LEN, 1)) {
- subdnode = ef_close_dir(ef, subdnode);
- return 1;
- };
- subdnode = ef_close_dir(ef, subdnode);
- };
- };
- };
-/*
- * Remove the latest filename from the pathname string, so that
- * another matching file can be appended.
- */
- ef->path->name[pathlen] = '\0';
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Record a new matching filename.
- *
- * Input:
- * ef ExpandFile * The filename-match resource object.
- * pathname const char * The pathname to record.
- * remove_escapes int If true, remove backslash escapes in the
- * recorded copy of the pathname.
- * Output:
- * return int 0 - OK.
- * 1 - Error (ef->errmsg will contain a
- * description of the error).
- */
-static int ef_record_pathname(ExpandFile *ef, const char *pathname,
- int remove_escapes)
-{
- char *copy; /* The recorded copy of pathname[] */
-/*
- * Attempt to make a copy of the pathname in the cache.
- */
- copy = ef_cache_pathname(ef, pathname, remove_escapes);
- if(!copy)
- return 1;
-/*
- * If there isn't room to record a pointer to the recorded pathname in the
- * array of files, attempt to extend the array.
- */
- if(ef->result.nfile + 1 > ef->files_dim) {
- int files_dim = ef->files_dim + MATCH_BLK_FACT;
- char **files = (char **) realloc(ef->result.files,
- files_dim * sizeof(files[0]));
- if(!files) {
- sprintf(ef->errmsg,
- "Insufficient memory to record all of the matching filenames");
- return 1;
- };
- ef->result.files = files;
- ef->files_dim = files_dim;
- };
-/*
- * Record a pointer to the new match.
- */
- ef->result.files[ef->result.nfile++] = copy;
- return 0;
-}
-
-/*.......................................................................
- * Record a pathname in the cache.
- *
- * Input:
- * ef ExpandFile * The filename-match resource object.
- * pathname char * The pathname to record.
- * remove_escapes int If true, remove backslash escapes in the
- * copy of the pathname.
- * Output:
- * return char * The pointer to the copy of the pathname.
- * On error NULL is returned and a description
- * of the error is left in ef->errmsg[].
- */
-static char *ef_cache_pathname(ExpandFile *ef, const char *pathname,
- int remove_escapes)
-{
- char *copy = _sg_store_string(ef->sg, pathname, remove_escapes);
- if(!copy)
- strcpy(ef->errmsg, "Insufficient memory to store pathname");
- return copy;
-}
-
-/*.......................................................................
- * Clear the results of the previous expansion operation, ready for the
- * next.
- *
- * Input:
- * ef ExpandFile * The pathname expansion resource object.
- */
-static void ef_clear_files(ExpandFile *ef)
-{
- _clr_StringGroup(ef->sg);
- _pn_clear_path(ef->path);
- ef->result.exists = 0;
- ef->result.nfile = 0;
- ef->errmsg[0] = '\0';
- return;
-}
-
-/*.......................................................................
- * Get a new directory reader object from the cache.
- *
- * Input:
- * ef ExpandFile * The pathname expansion resource object.
- * pathname const char * The pathname of the directory.
- * Output:
- * return DirNode * The cache entry of the new directory reader,
- * or NULL on error. On error, ef->errmsg will
- * contain a description of the error.
- */
-static DirNode *ef_open_dir(ExpandFile *ef, const char *pathname)
-{
- char *errmsg = NULL; /* An error message from a called function */
- DirNode *node; /* The cache node used */
-/*
- * Get the directory reader cache.
- */
- DirCache *cache = &ef->cache;
-/*
- * Extend the cache if there are no free cache nodes.
- */
- if(!cache->next) {
- node = (DirNode *) _new_FreeListNode(cache->mem);
- if(!node) {
- sprintf(ef->errmsg, "Insufficient memory to open a new directory");
- return NULL;
- };
-/*
- * Initialize the cache node.
- */
- node->next = NULL;
- node->prev = NULL;
- node->dr = NULL;
-/*
- * Allocate a directory reader object.
- */
- node->dr = _new_DirReader();
- if(!node->dr) {
- sprintf(ef->errmsg, "Insufficient memory to open a new directory");
- node = (DirNode *) _del_FreeListNode(cache->mem, node);
- return NULL;
- };
-/*
- * Append the node to the cache list.
- */
- node->prev = cache->tail;
- if(cache->tail)
- cache->tail->next = node;
- else
- cache->head = node;
- cache->next = cache->tail = node;
- };
-/*
- * Get the first unused node, but don't remove it from the list yet.
- */
- node = cache->next;
-/*
- * Attempt to open the specified directory.
- */
- if(_dr_open_dir(node->dr, pathname, &errmsg)) {
- strncpy(ef->errmsg, errmsg, ERRLEN);
- ef->errmsg[ERRLEN] = '\0';
- return NULL;
- };
-/*
- * Now that we have successfully opened the specified directory,
- * remove the cache node from the list, and relink the list around it.
- */
- cache->next = node->next;
- if(node->prev)
- node->prev->next = node->next;
- else
- cache->head = node->next;
- if(node->next)
- node->next->prev = node->prev;
- else
- cache->tail = node->prev;
- node->next = node->prev = NULL;
-/*
- * Return the successfully initialized cache node to the caller.
- */
- return node;
-}
-
-/*.......................................................................
- * Return a directory reader object to the cache, after first closing
- * the directory that it was managing.
- *
- * Input:
- * ef ExpandFile * The pathname expansion resource object.
- * node DirNode * The cache entry of the directory reader, as returned
- * by ef_open_dir().
- * Output:
- * return DirNode * The deleted DirNode (ie. allways NULL).
- */
-static DirNode *ef_close_dir(ExpandFile *ef, DirNode *node)
-{
-/*
- * Get the directory reader cache.
- */
- DirCache *cache = &ef->cache;
-/*
- * Close the directory.
- */
- _dr_close_dir(node->dr);
-/*
- * Return the node to the tail of the cache list.
- */
- node->next = NULL;
- node->prev = cache->tail;
- if(cache->tail)
- cache->tail->next = node;
- else
- cache->head = cache->tail = node;
- if(!cache->next)
- cache->next = node;
- return NULL;
-}
-
-/*.......................................................................
- * Return non-zero if the specified file name matches a given glob
- * pattern.
- *
- * Input:
- * file const char * The file-name component to be matched to the pattern.
- * pattern const char * The start of the pattern to match against file[].
- * xplicit int If non-zero, the first character must be matched
- * explicitly (ie. not with a wildcard).
- * nextp const char * The pointer to the the character following the
- * end of the pattern in pattern[].
- * Output:
- * return int 0 - Doesn't match.
- * 1 - The file-name string matches the pattern.
- */
-static int ef_string_matches_pattern(const char *file, const char *pattern,
- int xplicit, const char *nextp)
-{
- const char *pptr = pattern; /* The pointer used to scan the pattern */
- const char *fptr = file; /* The pointer used to scan the filename string */
-/*
- * Match each character of the pattern in turn.
- */
- while(pptr < nextp) {
-/*
- * Handle the next character of the pattern.
- */
- switch(*pptr) {
-/*
- * A match zero-or-more characters wildcard operator.
- */
- case '*':
-/*
- * Skip the '*' character in the pattern.
- */
- pptr++;
-/*
- * If wildcards aren't allowed, the pattern doesn't match.
- */
- if(xplicit)
- return 0;
-/*
- * If the pattern ends with a the '*' wildcard, then the
- * rest of the filename matches this.
- */
- if(pptr >= nextp)
- return 1;
-/*
- * Using the wildcard to match successively longer sections of
- * the remaining characters of the filename, attempt to match
- * the tail of the filename against the tail of the pattern.
- */
- for( ; *fptr; fptr++) {
- if(ef_string_matches_pattern(fptr, pptr, 0, nextp))
- return 1;
- };
- return 0; /* The pattern following the '*' didn't match */
- break;
-/*
- * A match-one-character wildcard operator.
- */
- case '?':
-/*
- * If there is a character to be matched, skip it and advance the
- * pattern pointer.
- */
- if(!xplicit && *fptr) {
- fptr++;
- pptr++;
-/*
- * If we hit the end of the filename string, there is no character
- * matching the operator, so the string doesn't match.
- */
- } else {
- return 0;
- };
- break;
-/*
- * A character range operator, with the character ranges enclosed
- * in matching square brackets.
- */
- case '[':
- if(xplicit || !ef_matches_range(*fptr++, ++pptr, &pptr))
- return 0;
- break;
-/*
- * A backslash in the pattern prevents the following character as
- * being seen as a special character.
- */
- case '\\':
- pptr++;
- /* Note fallthrough to default */
-/*
- * A normal character to be matched explicitly.
- */
- default:
- if(*fptr == *pptr) {
- fptr++;
- pptr++;
- } else {
- return 0;
- };
- break;
- };
-/*
- * After passing the first character, turn off the explicit match
- * requirement.
- */
- xplicit = 0;
- };
-/*
- * To get here the pattern must have been exhausted. If the filename
- * string matched, then the filename string must also have been
- * exhausted.
- */
- return *fptr == '\0';
-}
-
-/*.......................................................................
- * Match a character range expression terminated by an unescaped close
- * square bracket.
- *
- * Input:
- * c int The character to be matched with the range
- * pattern.
- * pattern const char * The range pattern to be matched (ie. after the
- * initiating '[' character).
- * endp const char ** On output a pointer to the character following the
- * range expression will be assigned to *endp.
- * Output:
- * return int 0 - Doesn't match.
- * 1 - The character matched.
- */
-static int ef_matches_range(int c, const char *pattern, const char **endp)
-{
- const char *pptr = pattern; /* The pointer used to scan the pattern */
- int invert = 0; /* True to invert the sense of the match */
- int matched = 0; /* True if the character matched the pattern */
-/*
- * If the first character is a caret, the sense of the match is
- * inverted and only if the character isn't one of those in the
- * range, do we say that it matches.
- */
- if(*pptr == '^') {
- pptr++;
- invert = 1;
- };
-/*
- * The hyphen is only a special character when it follows the first
- * character of the range (not including the caret).
- */
- if(*pptr == '-') {
- pptr++;
- if(c == '-') {
- *endp = pptr;
- matched = 1;
- };
-/*
- * Skip other leading '-' characters since they make no sense.
- */
- while(*pptr == '-')
- pptr++;
- };
-/*
- * The hyphen is only a special character when it follows the first
- * character of the range (not including the caret or a hyphen).
- */
- if(*pptr == ']') {
- pptr++;
- if(c == ']') {
- *endp = pptr;
- matched = 1;
- };
- };
-/*
- * Having dealt with the characters that have special meanings at
- * the beginning of a character range expression, see if the
- * character matches any of the remaining characters of the range,
- * up until a terminating ']' character is seen.
- */
- while(!matched && *pptr && *pptr != ']') {
-/*
- * Is this a range of characters signaled by the two end characters
- * separated by a hyphen?
- */
- if(*pptr == '-') {
- if(pptr[1] != ']') {
- if(c >= pptr[-1] && c <= pptr[1])
- matched = 1;
- pptr += 2;
- };
-/*
- * A normal character to be compared directly.
- */
- } else if(*pptr++ == c) {
- matched = 1;
- };
- };
-/*
- * Find the terminating ']'.
- */
- while(*pptr && *pptr != ']')
- pptr++;
-/*
- * Did we find a terminating ']'?
- */
- if(*pptr == ']') {
- *endp = pptr + 1;
- return matched ? !invert : invert;
- };
-/*
- * If the pattern didn't end with a ']' then it doesn't match, regardless
- * of the value of the required sense of the match.
- */
- *endp = pptr;
- return 0;
-}
-
-/*.......................................................................
- * This is a qsort() comparison function used to sort strings.
- *
- * Input:
- * v1, v2 void * Pointers to the two strings to be compared.
- * Output:
- * return int -1 -> v1 < v2.
- * 0 -> v1 == v2
- * 1 -> v1 > v2
- */
-static int ef_cmp_strings(const void *v1, const void *v2)
-{
- char * const *s1 = (char * const *) v1;
- char * const *s2 = (char * const *) v2;
- return strcmp(*s1, *s2);
-}
-
-/*.......................................................................
- * Preprocess a path, expanding ~/, ~user/ and $envvar references, using
- * ef->path as a work buffer, then copy the result into a cache entry,
- * and return a pointer to this copy.
- *
- * Input:
- * ef ExpandFile * The resource object of the file matcher.
- * pathlen int The length of the prefix of path[] to be expanded.
- * Output:
- * return char * A pointer to a copy of the output path in the
- * cache. On error NULL is returned, and a description
- * of the error is left in ef->errmsg[].
- */
-static char *ef_expand_special(ExpandFile *ef, const char *path, int pathlen)
-{
- int spos; /* The index of the start of the path segment that needs */
- /* to be copied from path[] to the output pathname. */
- int ppos; /* The index of a character in path[] */
- char *pptr; /* A pointer into the output path */
- int escaped; /* True if the previous character was a '\' */
- int i;
-/*
- * Clear the pathname buffer.
- */
- _pn_clear_path(ef->path);
-/*
- * We need to perform two passes, one to expand environment variables
- * and a second to do tilde expansion. This caters for the case
- * where an initial dollar expansion yields a tilde expression.
- */
- escaped = 0;
- for(spos=ppos=0; ppos < pathlen; ppos++) {
- int c = path[ppos];
- if(escaped) {
- escaped = 0;
- } else if(c == '\\') {
- escaped = 1;
- } else if(c == '$') {
- int envlen; /* The length of the environment variable */
- char *value; /* The value of the environment variable */
-/*
- * Record the preceding unrecorded part of the pathname.
- */
- if(spos < ppos && _pn_append_to_path(ef->path, path + spos, ppos-spos, 0)
- == NULL) {
- strcpy(ef->errmsg, "Insufficient memory to expand path");
- return NULL;
- };
-/*
- * Skip the dollar.
- */
- ppos++;
-/*
- * Copy the environment variable name that follows the dollar into
- * ef->envnam[], stopping if a directory separator or end of string
- * is seen.
- */
- for(envlen=0; envlenenvnam[envlen] = path[ppos++];
-/*
- * If the username overflowed the buffer, treat it as invalid (note that
- * on most unix systems only 8 characters are allowed in a username,
- * whereas our ENV_LEN is much bigger than that.
- */
- if(envlen >= ENV_LEN) {
- strcpy(ef->errmsg, "Environment variable name too long");
- return NULL;
- };
-/*
- * Terminate the environment variable name.
- */
- ef->envnam[envlen] = '\0';
-/*
- * Lookup the value of the environment variable.
- */
- value = getenv(ef->envnam);
- if(!value) {
- const char *fmt = "No expansion found for: $%.*s";
- sprintf(ef->errmsg, fmt, ERRLEN - strlen(fmt), ef->envnam);
- return NULL;
- };
-/*
- * Copy the value of the environment variable into the output pathname.
- */
- if(_pn_append_to_path(ef->path, value, -1, 0) == NULL) {
- strcpy(ef->errmsg, "Insufficient memory to expand path");
- return NULL;
- };
-/*
- * Record the start of the uncopied tail of the input pathname.
- */
- spos = ppos;
- };
- };
-/*
- * Record the uncopied tail of the pathname.
- */
- if(spos < ppos && _pn_append_to_path(ef->path, path + spos, ppos-spos, 0)
- == NULL) {
- strcpy(ef->errmsg, "Insufficient memory to expand path");
- return NULL;
- };
-/*
- * If the first character of the resulting pathname is a tilde,
- * then attempt to substitute the home directory of the specified user.
- */
- pptr = ef->path->name;
- if(*pptr == '~' && path[0] != '\\') {
- int usrlen; /* The length of the username following the tilde */
- const char *homedir; /* The home directory of the user */
- int homelen; /* The length of the home directory string */
- int plen; /* The current length of the path */
- int skip=0; /* The number of characters to skip after the ~user */
-/*
- * Get the current length of the output path.
- */
- plen = strlen(ef->path->name);
-/*
- * Skip the tilde.
- */
- pptr++;
-/*
- * Copy the optional username that follows the tilde into ef->usrnam[].
- */
- for(usrlen=0; usrlenusrnam[usrlen] = *pptr++;
-/*
- * If the username overflowed the buffer, treat it as invalid (note that
- * on most unix systems only 8 characters are allowed in a username,
- * whereas our USR_LEN is much bigger than that.
- */
- if(usrlen >= USR_LEN) {
- strcpy(ef->errmsg, "Username too long");
- return NULL;
- };
-/*
- * Terminate the username string.
- */
- ef->usrnam[usrlen] = '\0';
-/*
- * Lookup the home directory of the user.
- */
- homedir = _hd_lookup_home_dir(ef->home, ef->usrnam);
- if(!homedir) {
- strncpy(ef->errmsg, _hd_last_home_dir_error(ef->home), ERRLEN);
- ef->errmsg[ERRLEN] = '\0';
- return NULL;
- };
- homelen = strlen(homedir);
-/*
- * ~user and ~ are usually followed by a directory separator to
- * separate them from the file contained in the home directory.
- * If the home directory is the root directory, then we don't want
- * to follow the home directory by a directory separator, so we must
- * erase it.
- */
- if(strcmp(homedir, FS_ROOT_DIR) == 0 &&
- strncmp(pptr, FS_DIR_SEP, FS_DIR_SEP_LEN) == 0) {
- skip = FS_DIR_SEP_LEN;
- };
-/*
- * If needed, increase the size of the pathname buffer to allow it
- * to accomodate the home directory instead of the tilde expression.
- * Note that pptr may not be valid after this call.
- */
- if(_pn_resize_path(ef->path, plen - usrlen - 1 - skip + homelen)==NULL) {
- strcpy(ef->errmsg, "Insufficient memory to expand filename");
- return NULL;
- };
-/*
- * Move the part of the pathname that follows the tilde expression to
- * the end of where the home directory will need to be inserted.
- */
- memmove(ef->path->name + homelen,
- ef->path->name + 1 + usrlen + skip, plen - usrlen - 1 - skip+1);
-/*
- * Write the home directory at the beginning of the string.
- */
- for(i=0; ipath->name[i] = homedir[i];
- };
-/*
- * Copy the result into the cache, and return a pointer to the copy.
- */
- return ef_cache_pathname(ef, ef->path->name, 0);
-}
-
-/*.......................................................................
- * Return a description of the last path-expansion error that occurred.
- *
- * Input:
- * ef ExpandFile * The path-expansion resource object.
- * Output:
- * return char * The description of the last error.
- */
-const char *ef_last_error(ExpandFile *ef)
-{
- return ef ? ef->errmsg : "NULL ExpandFile argument";
-}
-
-/*.......................................................................
- * Print out an array of matching files.
- *
- * Input:
- * result FileExpansion * The container of the sorted array of
- * expansions.
- * fp FILE * The output stream to write to.
- * term_width int The width of the terminal.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int ef_list_expansions(FileExpansion *result, FILE *fp, int term_width)
-{
- int maxlen; /* The length of the longest matching string */
- int width; /* The width of a column */
- int ncol; /* The number of columns to list */
- int nrow; /* The number of rows needed to list all of the expansions */
- int row,col; /* The row and column being written to */
- int i;
-/*
- * Check the arguments.
- */
- if(!result || !fp) {
- fprintf(stderr, "ef_list_expansions: NULL argument(s).\n");
- return 1;
- };
-/*
- * Not enough space to list anything?
- */
- if(term_width < 1)
- return 0;
-/*
- * Work out the maximum length of the matching filenames.
- */
- maxlen = 0;
- for(i=0; infile; i++) {
- int len = strlen(result->files[i]);
- if(len > maxlen)
- maxlen = len;
- };
-/*
- * Nothing to list?
- */
- if(maxlen == 0)
- return 0;
-/*
- * Split the available terminal width into columns of maxlen + 2 characters.
- */
- width = maxlen + 2;
- ncol = term_width / width;
-/*
- * If the column width is greater than the terminal width, the matches will
- * just have to overlap onto the next line.
- */
- if(ncol < 1)
- ncol = 1;
-/*
- * How many rows will be needed?
- */
- nrow = (result->nfile + ncol - 1) / ncol;
-/*
- * Print the expansions out in ncol columns, sorted in row order within each
- * column.
- */
- for(row=0; row < nrow; row++) {
- for(col=0; col < ncol; col++) {
- int m = col*nrow + row;
- if(m < result->nfile) {
- const char *filename = result->files[m];
- if(fprintf(fp, "%s%-*s%s", filename,
- (int) (ncol > 1 ? maxlen - strlen(filename):0), "",
- col
-#include
-
-#include "freelist.h"
-
-typedef struct FreeListBlock FreeListBlock;
-struct FreeListBlock {
- FreeListBlock *next; /* The next block in the list */
- char *nodes; /* The array of free-list nodes */
-};
-
-struct FreeList {
- size_t node_size; /* The size of a free-list node */
- unsigned blocking_factor; /* The number of nodes per block */
- long nbusy; /* The number of nodes that are in use */
- FreeListBlock *block; /* The head of the list of free-list blocks */
- void *free_list; /* The free-list of nodes */
-};
-
-static FreeListBlock *_new_FreeListBlock(FreeList *fl);
-static FreeListBlock *_del_FreeListBlock(FreeListBlock *fl);
-static void _thread_FreeListBlock(FreeList *fl, FreeListBlock *block);
-
-/*.......................................................................
- * Allocate a new free-list from blocks of 'blocking_factor' objects of size
- * node_size.
- *
- * Input:
- * caller const char * The name of the calling function, for use in
- * error messages, or NULL to not report errors
- * to stderr.
- * node_size size_t The size of the free-list nodes to be returned
- * by _new_FreeListNode(). Use sizeof() to
- * determine this.
- * blocking_factor unsigned The number of objects of size 'object_size'
- * to allocate per block.
- * Output:
- * return FreeList * The new freelist, or NULL on error.
- */
-FreeList *_new_FreeList(const char *caller, size_t node_size,
- unsigned blocking_factor)
-{
- FreeList *fl; /* The new free-list container */
-/*
- * When a free-list node is on the free-list, it is used as a (void *)
- * link field. Roundup node_size to a mulitple of the size of a void
- * pointer. This, plus the fact that the array of nodes is obtained via
- * malloc, which returns memory suitably aligned for any object, will
- * ensure that the first sizeof(void *) bytes of each node will be
- * suitably aligned to use as a (void *) link pointer.
- */
- node_size = sizeof(void *) *
- ((node_size + sizeof(void *) - 1) / sizeof(void *));
-/*
- * Enfore a minimum block size.
- */
- if(blocking_factor < 1)
- blocking_factor = 1;
-/*
- * Allocate the container of the free list.
- */
- fl = (FreeList *) malloc(sizeof(FreeList));
- if(!fl) {
- if(caller)
- fprintf(stderr, "_new_FreeList (%s): Insufficient memory.\n", caller);
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to _del_FreeList().
- */
- fl->node_size = node_size;
- fl->blocking_factor = blocking_factor;
- fl->nbusy = 0;
- fl->block = NULL;
- fl->free_list = NULL;
-/*
- * Allocate the first block of memory.
- */
- fl->block = _new_FreeListBlock(fl);
- if(!fl->block) {
- if(caller)
- fprintf(stderr, "_new_FreeList (%s): Insufficient memory.\n", caller);
- return _del_FreeList(caller, fl, 1);
- };
-/*
- * Add the new list of nodes to the free-list.
- */
- fl->free_list = fl->block->nodes;
-/*
- * Return the free-list for use.
- */
- return fl;
-}
-
-/*.......................................................................
- * Re-thread a freelist to reclaim all allocated nodes.
- * This function should not be called unless if it is known that none
- * of the currently allocated nodes are still being used.
- *
- * Input:
- * fl FreeList * The free-list to be reset, or NULL.
- */
-void _rst_FreeList(FreeList *fl)
-{
- if(fl) {
- FreeListBlock *block;
-/*
- * Re-thread the nodes of each block into individual free-lists.
- */
- for(block=fl->block; block; block=block->next)
- _thread_FreeListBlock(fl, block);
-/*
- * Link all of the block freelists into one large freelist.
- */
- fl->free_list = NULL;
- for(block=fl->block; block; block=block->next) {
-/*
- * Locate the last node of the current block.
- */
- char *last_node = block->nodes + fl->node_size *
- (fl->blocking_factor - 1);
-/*
- * Make the link-field of the last node point to the first
- * node of the current freelist, then make the first node of the
- * new block the start of the freelist.
- */
- *(void **)last_node = fl->free_list;
- fl->free_list = block->nodes;
- };
-/*
- * All allocated nodes have now been returned to the freelist.
- */
- fl->nbusy = 0;
- };
-}
-
-/*.......................................................................
- * Delete a free-list.
- *
- * Input:
- * caller const char * The name of the calling function, for use in
- * error messages, or NULL if error messages
- * shouldn't be reported to stderr.
- * fl FreeList * The free-list to be deleted, or NULL.
- * force int If force==0 then _del_FreeList() will complain
- * and refuse to delete the free-list if any
- * of nodes have not been returned to the free-list.
- * If force!=0 then _del_FreeList() will not check
- * whether any nodes are still in use and will
- * always delete the list.
- * Output:
- * return FreeList * Always NULL (even if the list couldn't be
- * deleted).
- */
-FreeList *_del_FreeList(const char *caller, FreeList *fl, int force)
-{
- if(fl) {
-/*
- * Check whether any nodes are in use.
- */
- if(!force && _busy_FreeListNodes(fl) != 0) {
- if(caller)
- fprintf(stderr, "_del_FreeList (%s): %ld nodes are still in use.\n",
- caller, _busy_FreeListNodes(fl));
- return NULL;
- };
-/*
- * Delete the list blocks.
- */
- {
- FreeListBlock *next = fl->block;
- while(next) {
- FreeListBlock *block = next;
- next = block->next;
- block = _del_FreeListBlock(block);
- };
- };
- fl->block = NULL;
- fl->free_list = NULL;
-/*
- * Discard the container.
- */
- free(fl);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Allocate a new object from a free-list.
- *
- * Input:
- * fl FreeList * The free-list to return an object from.
- * Output:
- * return void * A new object of the size that was specified via
- * the node_size argument of _new_FreeList() when
- * the free-list was created, or NULL if there
- * is insufficient memory, or 'fl' is NULL.
- */
-void *_new_FreeListNode(FreeList *fl)
-{
- void *node; /* The node to be returned */
-/*
- * Check arguments.
- */
- if(!fl)
- return NULL;
-/*
- * If the free-list has been exhausted extend it by allocating
- * another block of nodes.
- */
- if(!fl->free_list) {
- FreeListBlock *block = _new_FreeListBlock(fl);
- if(!block)
- return NULL;
-/*
- * Prepend the new block to the list of free-list blocks.
- */
- block->next = fl->block;
- fl->block = block;
-/*
- * Add the new list of nodes to the free-list.
- */
- fl->free_list = fl->block->nodes;
- };
-/*
- * Remove and return a node from the front of the free list.
- */
- node = fl->free_list;
- fl->free_list = *(void **)node;
-/*
- * Record the loss of a node from the free-list.
- */
- fl->nbusy++;
-/*
- * Return the node.
- */
- return node;
-}
-
-/*.......................................................................
- * Return an object to the free-list that it was allocated from.
- *
- * Input:
- * caller const char * The name of the calling function, for use in
- * error messages, or NULL to not report errors
- * to stderr.
- * fl FreeList * The free-list from which the object was taken.
- * object void * The node to be returned.
- * Output:
- * return void * Always NULL.
- */
-void *_del_FreeListNode(FreeList *fl, void *object)
-{
-/*
- * Check arguments.
- */
- if(!fl)
- return NULL;
-/*
- * Return the node to the head of the free list.
- */
- if(object) {
- *(void **)object = fl->free_list;
- fl->free_list = object;
-/*
- * Record the return of the node to the free-list.
- */
- fl->nbusy--;
- };
- return NULL;
-}
-
-/*.......................................................................
- * Return a count of the number of nodes that are currently allocated.
- *
- * Input:
- * fl FreeList * The list to count wrt, or NULL.
- * Output:
- * return long The number of nodes (or 0 if fl==NULL).
- */
-long _busy_FreeListNodes(FreeList *fl)
-{
- return fl ? fl->nbusy : 0;
-}
-
-/*.......................................................................
- * Allocate a new list of free-list nodes. On return the nodes will
- * be linked together as a list starting with the node at the lowest
- * address and ending with a NULL next pointer.
- *
- * Input:
- * fl FreeList * The free-list to allocate the list for.
- * Output:
- * return FreeListBlock * The new linked block of free-list nodes,
- * or NULL on error.
- */
-static FreeListBlock *_new_FreeListBlock(FreeList *fl)
-{
- FreeListBlock *block; /* The new block to be returned */
-/*
- * Allocate the container.
- */
- block = (FreeListBlock *) malloc(sizeof(FreeListBlock));
- if(!block)
- return NULL;
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to _del_FreeListBlock().
- */
- block->next = NULL;
- block->nodes = NULL;
-/*
- * Allocate the block of nodes.
- */
- block->nodes = (char *) malloc(fl->node_size * fl->blocking_factor);
- if(!block->nodes)
- return _del_FreeListBlock(block);
-/*
- * Initialize the block as a linked list of FreeListNode's.
- */
- _thread_FreeListBlock(fl, block);
- return block;
-}
-
-/*.......................................................................
- * Link each node of a freelist block to the node that follows it.
- *
- * Input:
- * fl FreeList * The freelist that contains the block.
- * block FreeListBlock * The block to be threaded.
- */
-static void _thread_FreeListBlock(FreeList *fl, FreeListBlock *block)
-{
- char *mem = block->nodes;
- int i;
- for(i=0; iblocking_factor - 1; i++, mem += fl->node_size)
- *(void **)mem = mem + fl->node_size; /* Link to the next node */
- *(void **)mem = NULL; /* Terminate the list */
-}
-
-/*.......................................................................
- * Delete a free-list block.
- *
- * Input:
- * fl FreeListBlock * The block to be deleted, or NULL.
- * Output:
- * return FreeListBlock * Always NULL.
- */
-static FreeListBlock *_del_FreeListBlock(FreeListBlock *fl)
-{
- if(fl) {
- fl->next = NULL;
- if(fl->nodes)
- free(fl->nodes);
- fl->nodes = NULL;
- free(fl);
- };
- return NULL;
-}
diff --git a/libtecla-1.4.1/freelist.h b/libtecla-1.4.1/freelist.h
deleted file mode 100644
index 84e6aef..0000000
--- a/libtecla-1.4.1/freelist.h
+++ /dev/null
@@ -1,82 +0,0 @@
-#ifndef freelist_h
-#define freelist_h
-
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-/*
- * This module provides a memory allocation scheme that helps to
- * prevent memory fragmentation by allocating large blocks of
- * fixed sized objects and forming them into a free-list for
- * subsequent allocations. The free-list is expanded as needed.
- */
-typedef struct FreeList FreeList;
-
-/*
- * Allocate a new free-list from blocks of 'blocking_factor' objects of size
- * node_size. The node_size argument should be determined by applying
- * the sizeof() operator to the object type that you intend to allocate from
- * the freelist.
- */
-FreeList *_new_FreeList(const char *caller, size_t node_size,
- unsigned blocking_factor);
-
-/*
- * If it is known that none of the nodes currently allocated from
- * a freelist are still in use, the following function can be called
- * to return all nodes to the freelist without the overhead of
- * having to call del_FreeListNode() for every allocated node. The
- * nodes of the freelist can then be reused by future callers to
- * new_FreeListNode().
- */
-void _rst_FreeList(FreeList *fl);
-
-/*
- * Delete a free-list.
- */
-FreeList *_del_FreeList(const char *caller, FreeList *fl, int force);
-
-/*
- * Determine the number of nodes that are currently allocated.
- */
-long _busy_FreeListNodes(FreeList *fl);
-
-/*
- * Allocate a new object from a free-list.
- */
-void *_new_FreeListNode(FreeList *fl);
-
-/*
- * Return an object to the free-list that it was allocated from.
- */
-void *_del_FreeListNode(FreeList *fl, void *object);
-
-#endif
diff --git a/libtecla-1.4.1/getline.c b/libtecla-1.4.1/getline.c
deleted file mode 100644
index 242fae3..0000000
--- a/libtecla-1.4.1/getline.c
+++ /dev/null
@@ -1,8346 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-/*
- * Standard headers.
- */
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-
-/*
- * UNIX headers.
- */
-#include
-#ifdef HAVE_SELECT
-#include
-#include
-#endif
-
-/*
- * Handle the different sources of terminal control string and size
- * information. Note that if no terminal information database is available,
- * ANSI VT100 control sequences are used.
- */
-#if defined(USE_TERMINFO) || defined(USE_TERMCAP)
-/*
- * Include curses.h or ncurses/curses.h depending on which is available.
- */
-#ifdef HAVE_CURSES_H
-#include
-#elif defined(HAVE_NCURSES_CURSES_H)
-#include
-#endif
-/*
- * Include term.h where available.
- */
-#if defined(HAVE_TERM_H)
-#include
-#elif defined(HAVE_NCURSES_TERM_H)
-#include
-#endif
-/*
- * When using termcap, include termcap.h on systems that have it.
- * Otherwise assume that all prototypes are provided by curses.h.
- */
-#if defined(USE_TERMCAP) && defined(HAVE_TERMCAP_H)
-#include
-#endif
-/*
- * Unfortunately both terminfo and termcap require one to use the tputs()
- * function to output terminal control characters, and this function
- * doesn't allow one to specify a file stream. As a result, the following
- * file-scope variable is used to pass the current output file stream.
- * This is bad, but there doesn't seem to be any alternative.
- */
-static FILE *tputs_fp = NULL;
-/*
- * Under Solaris default Curses the output function that tputs takes is
- * declared to have a char argument. On all other systems and on Solaris
- * X/Open Curses (Issue 4, Version 2) it expects an int argument (using
- * c89 or options -I /usr/xpg4/include -L /usr/xpg4/lib -R /usr/xpg4/lib
- * selects XPG4v2 Curses on Solaris 2.6 and later).
- *
- * Similarly, under Mac OS X, the return value of the tputs output
- * function is declared as void, whereas it is declared as int on
- * other systems.
- */
-#if defined __sun && defined __SVR4 && !defined _XOPEN_CURSES
-static int gl_tputs_putchar(char c) {return putc(c, tputs_fp);}
-#elif defined(__APPLE__) && defined(__MACH__)
-static void gl_tputs_putchar(int c) {(void) putc(c, tputs_fp);}
-#else
-static int gl_tputs_putchar(int c) {return putc(c, tputs_fp);}
-#endif
-#endif
-
-/*
- * POSIX headers.
- */
-#include
-#include
-
-/*
- * Does the system provide the signal and ioctl query facility used
- * to inform the process of terminal window size changes?
- */
-#if defined(SIGWINCH) && defined(TIOCGWINSZ)
-#define USE_SIGWINCH 1
-#endif
-
-/*
- * Provide typedefs for standard POSIX structures.
- */
-typedef struct sigaction SigAction;
-typedef struct termios Termios;
-
-/*
- * Local headers.
- */
-#include "pathutil.h"
-#include "libtecla.h"
-#include "keytab.h"
-#include "history.h"
-#include "freelist.h"
-#include "stringrp.h"
-#include "getline.h"
-
-/*
- * Enumerate the available editing styles.
- */
-typedef enum {
- GL_EMACS_MODE, /* Emacs style editing */
- GL_VI_MODE, /* Vi style editing */
- GL_NO_EDITOR /* Fall back to the basic OS-provided editing */
-} GlEditor;
-
-/*
- * In vi mode, the following datatype is used to implement the
- * undo command. It records a copy of the input line from before
- * the command-mode action which edited the input line.
- */
-typedef struct {
- char *line; /* A historical copy of the input line */
- int buff_curpos; /* The historical location of the cursor in */
- /* line[] when the line was modified. */
- int ntotal; /* The number of characters in line[] */
- int saved; /* True once a line has been saved after the */
- /* last call to gl_interpret_char(). */
-} ViUndo;
-
-/*
- * In vi mode, the following datatype is used to record information
- * needed by the vi-repeat-change command.
- */
-typedef struct {
- KtKeyFn *fn; /* The last action function that made a */
- /* change to the line. */
- int count; /* The repeat count that was passed to the */
- /* above command. */
- int input_curpos; /* Whenever vi command mode is entered, the */
- /* the position at which it was first left */
- /* is recorded here. */
- int command_curpos; /* Whenever vi command mode is entered, the */
- /* the location of the cursor is recorded */
- /* here. */
- char input_char; /* Commands that call gl_read_character() */
- /* record the character here, so that it can */
- /* used on repeating the function. */
- int saved; /* True if a function has been saved since the */
- /* last call to gl_interpret_char(). */
- int active; /* True while a function is being repeated. */
-} ViRepeat;
-
-/*
- * The following datatype is used to encapsulate information specific
- * to vi mode.
- */
-typedef struct {
- ViUndo undo; /* Information needed to implement the vi */
- /* undo command. */
- ViRepeat repeat; /* Information needed to implement the vi */
- /* repeat command. */
- int command; /* True in vi command-mode */
- int find_forward; /* True if the last character search was in the */
- /* forward direction. */
- int find_onto; /* True if the last character search left the */
- /* on top of the located character, as opposed */
- /* to just before or after it. */
- char find_char; /* The last character sought, or '\0' if no */
- /* searches have been performed yet. */
-} ViMode;
-
-#ifdef HAVE_SELECT
-/*
- * Define a type for recording a file-descriptor callback and its associated
- * data.
- */
-typedef struct {
- GlFdEventFn *fn; /* The callback function */
- void *data; /* Anonymous data to pass to the callback function */
-} GlFdHandler;
-
-/*
- * A list of nodes of the following type is used to record file-activity
- * event handlers, but only on systems that have the select() system call.
- */
-typedef struct GlFdNode GlFdNode;
-struct GlFdNode {
- GlFdNode *next; /* The next in the list of nodes */
- int fd; /* The file descriptor being watched */
- GlFdHandler rd; /* The callback to call when fd is readable */
- GlFdHandler wr; /* The callback to call when fd is writable */
- GlFdHandler ur; /* The callback to call when fd has urgent data */
-};
-
-/*
- * Set the number of the above structures to allocate every time that
- * the freelist of GlFdNode's becomes exhausted.
- */
-#define GLFD_FREELIST_BLOCKING 10
-
-/*
- * Listen for and handle file-descriptor events.
- */
-static int gl_event_handler(GetLine *gl);
-
-static int gl_call_fd_handler(GetLine *gl, GlFdHandler *gfh, int fd,
- GlFdEvent event);
-#endif
-
-/*
- * Each signal that gl_get_line() traps is described by a list node
- * of the following type.
- */
-typedef struct GlSignalNode GlSignalNode;
-struct GlSignalNode {
- GlSignalNode *next; /* The next signal in the list */
- int signo; /* The number of the signal */
- sigset_t proc_mask; /* A process mask which only includes signo */
- SigAction original; /* The signal disposition of the calling program */
- /* for this signal. */
- unsigned flags; /* A bitwise union of GlSignalFlags enumerators */
- GlAfterSignal after; /* What to do after the signal has been handled */
- int errno_value; /* What to set errno to */
-};
-
-/*
- * Set the number of the above structures to allocate every time that
- * the freelist of GlSignalNode's becomes exhausted.
- */
-#define GLS_FREELIST_BLOCKING 30
-
-/*
- * Define the contents of the GetLine object.
- * Note that the typedef for this object can be found in libtecla.h.
- */
-struct GetLine {
- GlHistory *glh; /* The line-history buffer */
- WordCompletion *cpl; /* String completion resource object */
- CplMatchFn(*cpl_fn); /* The tab completion callback function */
- void *cpl_data; /* Callback data to pass to cpl_fn() */
- ExpandFile *ef; /* ~user/, $envvar and wildcard expansion */
- /* resource object. */
- StringGroup *capmem; /* Memory for recording terminal capability */
- /* strings. */
- int input_fd; /* The file descriptor to read on */
- int output_fd; /* The file descriptor to write to */
- FILE *input_fp; /* A stream wrapper around input_fd */
- FILE *output_fp; /* A stream wrapper around output_fd */
- FILE *file_fp; /* When input is being temporarily taken from */
- /* a file, this is its file-pointer. Otherwise */
- /* it is NULL. */
- char *term; /* The terminal type specified on the last call */
- /* to gl_change_terminal(). */
- int is_term; /* True if stdin is a terminal */
- size_t linelen; /* The max number of characters per line */
- char *line; /* A line-input buffer of allocated size */
- /* linelen+2. The extra 2 characters are */
- /* reserved for "\n\0". */
- char *cutbuf; /* A cut-buffer of the same size as line[] */
- const char *prompt; /* The current prompt string */
- int prompt_len; /* The length of the prompt string */
- int prompt_changed; /* True after a callback changes the prompt */
- int prompt_style; /* How the prompt string is displayed */
- FreeList *sig_mem; /* Memory for nodes of the signal list */
- GlSignalNode *sigs; /* The head of the list of signals */
- sigset_t old_signal_set; /* The signal set on entry to gl_get_line() */
- sigset_t new_signal_set; /* The set of signals that we are trapping */
- Termios oldattr; /* Saved terminal attributes. */
- KeyTab *bindings; /* A table of key-bindings */
- int ntotal; /* The number of characters in gl->line[] */
- int buff_curpos; /* The cursor position within gl->line[] */
- int term_curpos; /* The cursor position on the terminal */
- int buff_mark; /* A marker location in the buffer */
- int insert_curpos; /* The cursor position at start of insert */
- int insert; /* True in insert mode */
- int number; /* If >= 0, a numeric argument is being read */
- int endline; /* True to tell gl_get_input_line() to return */
- /* the current contents of gl->line[] */
- KtKeyFn *current_fn; /* The action function that is currently being */
- /* invoked. */
- int current_count; /* The repeat count passed to current_fn() */
- GlhLineID preload_id; /* When not zero, this should be the ID of a */
- /* line in the history buffer for potential */
- /* recall. */
- int preload_history; /* If true, preload the above history line when */
- /* gl_get_input_line() is next called. */
- long keyseq_count; /* The number of key sequences entered by the */
- /* the user since new_GetLine() was called. */
- long last_search; /* The value of oper_count during the last */
- /* history search operation. */
- GlEditor editor; /* The style of editing, (eg. vi or emacs) */
- int silence_bell; /* True if gl_ring_bell() should do nothing. */
- ViMode vi; /* Parameters used when editing in vi mode */
- const char *left; /* The string that moves the cursor 1 character */
- /* left. */
- const char *right; /* The string that moves the cursor 1 character */
- /* right. */
- const char *up; /* The string that moves the cursor 1 character */
- /* up. */
- const char *down; /* The string that moves the cursor 1 character */
- /* down. */
- const char *home; /* The string that moves the cursor home */
- const char *bol; /* Move cursor to beginning of line */
- const char *clear_eol; /* The string that clears from the cursor to */
- /* the end of the line. */
- const char *clear_eod; /* The string that clears from the cursor to */
- /* the end of the display. */
- const char *u_arrow; /* The string returned by the up-arrow key */
- const char *d_arrow; /* The string returned by the down-arrow key */
- const char *l_arrow; /* The string returned by the left-arrow key */
- const char *r_arrow; /* The string returned by the right-arrow key */
- const char *sound_bell; /* The string needed to ring the terminal bell */
- const char *bold; /* Switch to the bold font */
- const char *underline; /* Underline subsequent characters */
- const char *standout; /* Turn on standout mode */
- const char *dim; /* Switch to a dim font */
- const char *reverse; /* Turn on reverse video */
- const char *blink; /* Switch to a blinking font */
- const char *text_attr_off; /* Turn off all text attributes */
- int nline; /* The height of the terminal in lines */
- int ncolumn; /* The width of the terminal in columns */
-#ifdef USE_TERMCAP
- char *tgetent_buf; /* The buffer that is used by tgetent() to */
- /* store a terminal description. */
- char *tgetstr_buf; /* The buffer that is used by tgetstr() to */
- /* store terminal capabilities. */
-#endif
-#ifdef USE_TERMINFO
- const char *left_n; /* The parameter string that moves the cursor */
- /* n characters left. */
- const char *right_n; /* The parameter string that moves the cursor */
- /* n characters right. */
-#endif
- char *app_file; /* The pathname of the application-specific */
- /* .teclarc configuration file, or NULL. */
- char *user_file; /* The pathname of the user-specific */
- /* .teclarc configuration file, or NULL. */
- int configured; /* True as soon as any teclarc configuration */
- /* file has been read. */
- int echo; /* True to display the line as it is being */
- /* entered. If 0, only the prompt will be */
- /* displayed, and the line will not be */
- /* archived in the history list. */
- int last_signal; /* The last signal that was caught by */
- /* the last call to gl_get_line(), or -1 */
- /* if no signal has been caught yet. */
-#ifdef HAVE_SELECT
- FreeList *fd_node_mem; /* A freelist of GlFdNode structures */
- GlFdNode *fd_nodes; /* The list of fd event descriptions */
- fd_set rfds; /* The set of fds to watch for readability */
- fd_set wfds; /* The set of fds to watch for writability */
- fd_set ufds; /* The set of fds to watch for urgent data */
- int max_fd; /* The maximum file-descriptor being watched */
-#endif
-};
-
-/*
- * Define the max amount of space needed to store a termcap terminal
- * description. Unfortunately this has to be done by guesswork, so
- * there is the potential for buffer overflows if we guess too small.
- * Fortunately termcap has been replaced by terminfo on most
- * platforms, and with terminfo this isn't an issue. The value that I
- * am using here is the conventional value, as recommended by certain
- * web references.
- */
-#ifdef USE_TERMCAP
-#define TERMCAP_BUF_SIZE 2048
-#endif
-
-/*
- * Set the size of the string segments used to store terminal capability
- * strings.
- */
-#define CAPMEM_SEGMENT_SIZE 512
-
-/*
- * If no terminal size information is available, substitute the
- * following vt100 default sizes.
- */
-#define GL_DEF_NLINE 24
-#define GL_DEF_NCOLUMN 80
-
-/*
- * List the signals that we need to catch. In general these are
- * those that by default terminate or suspend the process, since
- * in such cases we need to restore terminal settings.
- */
-static const struct GlDefSignal {
- int signo; /* The number of the signal */
- unsigned flags; /* A bitwise union of GlSignalFlags enumerators */
- GlAfterSignal after; /* What to do after the signal has been delivered */
- int errno_value; /* What to set errno to */
-} gl_signal_list[] = {
- {SIGABRT, GLS_SUSPEND_INPUT, GLS_ABORT, EINTR},
- {SIGINT, GLS_SUSPEND_INPUT, GLS_ABORT, EINTR},
- {SIGTERM, GLS_SUSPEND_INPUT, GLS_ABORT, EINTR},
- {SIGALRM, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
- {SIGCONT, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#if defined(SIGHUP)
-#ifdef ENOTTY
- {SIGHUP, GLS_SUSPEND_INPUT, GLS_ABORT, ENOTTY},
-#else
- {SIGHUP, GLS_SUSPEND_INPUT, GLS_ABORT, EINTR},
-#endif
-#endif
-#if defined(SIGPIPE)
-#ifdef EPIPE
- {SIGPIPE, GLS_SUSPEND_INPUT, GLS_ABORT, EPIPE},
-#else
- {SIGPIPE, GLS_SUSPEND_INPUT, GLS_ABORT, EINTR},
-#endif
-#endif
-#ifdef SIGPWR
- {SIGPWR, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGQUIT
- {SIGQUIT, GLS_SUSPEND_INPUT, GLS_ABORT, EINTR},
-#endif
-#ifdef SIGTSTP
- {SIGTSTP, GLS_SUSPEND_INPUT, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGTTIN
- {SIGTTIN, GLS_SUSPEND_INPUT, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGTTOU
- {SIGTTOU, GLS_SUSPEND_INPUT, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGUSR1
- {SIGUSR1, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGUSR2
- {SIGUSR2, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGVTALRM
- {SIGVTALRM, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGWINCH
- {SIGWINCH, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#endif
-#ifdef SIGXCPU
- {SIGXCPU, GLS_RESTORE_ENV, GLS_CONTINUE, 0},
-#endif
-};
-
-/*
- * Define file-scope variables for use in signal handlers.
- */
-static volatile sig_atomic_t gl_pending_signal = -1;
-static sigjmp_buf gl_setjmp_buffer;
-
-static void gl_signal_handler(int signo);
-
-static int gl_check_caught_signal(GetLine *gl);
-
-/*
- * Define a tab to be a string of 8 spaces.
- */
-#define TAB_WIDTH 8
-
-/*
- * Does the system send us SIGWINCH signals when the terminal size
- * changes?
- */
-#ifdef USE_SIGWINCH
-static int gl_resize_terminal(GetLine *gl, int redisplay);
-#endif
-
-/*
- * Getline calls this to temporarily override certain signal handlers
- * of the calling program.
- */
-static int gl_override_signal_handlers(GetLine *gl);
-
-/*
- * Getline calls this to restore the signal handlers of the calling
- * program.
- */
-static int gl_restore_signal_handlers(GetLine *gl);
-
-/*
- * Put the terminal into raw input mode, after saving the original
- * terminal attributes in gl->oldattr.
- */
-static int gl_raw_terminal_mode(GetLine *gl);
-
-/*
- * Restore the terminal attributes from gl->oldattr.
- */
-static int gl_restore_terminal_attributes(GetLine *gl);
-
-/*
- * Read a line from the user in raw mode.
- */
-static int gl_get_input_line(GetLine *gl, const char *start_line,
- int start_pos);
-
-/*
- * Set the largest key-sequence that can be handled.
- */
-#define GL_KEY_MAX 64
-
-/*
- * Handle the receipt of the potential start of a new key-sequence from
- * the user.
- */
-static int gl_interpret_char(GetLine *gl, char c);
-
-/*
- * Bind a single control or meta character to an action.
- */
-static int gl_bind_control_char(GetLine *gl, KtBinder binder,
- char c, const char *action);
-
-/*
- * Set up terminal-specific key bindings.
- */
-static int gl_bind_terminal_keys(GetLine *gl);
-
-/*
- * Lookup terminal control string and size information.
- */
-static int gl_control_strings(GetLine *gl, const char *term);
-
-/*
- * Wrappers around the terminfo and termcap functions that lookup
- * strings in the terminal information databases.
- */
-#ifdef USE_TERMINFO
-static const char *gl_tigetstr(GetLine *gl, const char *name);
-#elif defined(USE_TERMCAP)
-static const char *gl_tgetstr(GetLine *gl, const char *name, char **bufptr);
-#endif
-
-/*
- * Output a binary string directly to the terminal.
- */
-static int gl_output_raw_string(GetLine *gl, const char *string);
-
-/*
- * Output a terminal control sequence.
- */
-static int gl_output_control_sequence(GetLine *gl, int nline,
- const char *string);
-
-/*
- * Output a character or string to the terminal after converting tabs
- * to spaces and control characters to a caret followed by the modified
- * character.
- */
-static int gl_output_char(GetLine *gl, char c, char pad);
-static int gl_output_string(GetLine *gl, const char *string, char pad);
-
-/*
- * Delete nc characters starting from the one under the cursor.
- * Optionally copy the deleted characters to the cut buffer.
- */
-static int gl_delete_chars(GetLine *gl, int nc, int cut);
-
-/*
- * Add a character to the line buffer at the current cursor position,
- * inserting or overwriting according the current mode.
- */
-static int gl_add_char_to_line(GetLine *gl, char c);
-
-/*
- * Insert/append a string to the line buffer and terminal at the current
- * cursor position.
- */
-static int gl_add_string_to_line(GetLine *gl, const char *s);
-
-/*
- * Read a single character from the terminal.
- */
-static int gl_read_character(GetLine *gl, char *c);
-
-
-/*
- * Move the terminal cursor n positions to the left or right.
- */
-static int gl_terminal_move_cursor(GetLine *gl, int n);
-
-/*
- * Move the terminal cursor to a given position.
- */
-static int gl_set_term_curpos(GetLine *gl, int term_curpos);
-
-/*
- * Set the position of the cursor both in the line input buffer and on the
- * terminal.
- */
-static int gl_place_cursor(GetLine *gl, int buff_curpos);
-
-/*
- * Return the terminal cursor position that corresponds to a given
- * line buffer cursor position.
- */
-static int gl_buff_curpos_to_term_curpos(GetLine *gl, int buff_curpos);
-
-/*
- * Return the number of terminal characters needed to display a
- * given raw character.
- */
-static int gl_displayed_char_width(GetLine *gl, char c, int term_curpos);
-
-/*
- * Return the number of terminal characters needed to display a
- * given substring.
- */
-static int gl_displayed_string_width(GetLine *gl, const char *string, int nc,
- int term_curpos);
-/*
- * Return non-zero if 'c' is to be considered part of a word.
- */
-static int gl_is_word_char(int c);
-
-/*
- * Read a tecla configuration file.
- */
-static int _gl_read_config_file(GetLine *gl, const char *filename, KtBinder who);
-
-/*
- * Read a tecla configuration string.
- */
-static int _gl_read_config_string(GetLine *gl, const char *buffer, KtBinder who);
-
-/*
- * Define the callback function used by _gl_parse_config_line() to
- * read the next character of a configuration stream.
- */
-#define GLC_GETC_FN(fn) int (fn)(void *stream)
-typedef GLC_GETC_FN(GlcGetcFn);
-
-static GLC_GETC_FN(glc_file_getc); /* Read from a file */
-static GLC_GETC_FN(glc_buff_getc); /* Read from a string */
-
-/*
- * Parse a single configuration command line.
- */
-static int _gl_parse_config_line(GetLine *gl, void *stream, GlcGetcFn *getc_fn,
- const char *origin, KtBinder who, int *lineno);
-
-/*
- * Bind the actual arrow key bindings to match those of the symbolic
- * arrow-key bindings.
- */
-static int _gl_bind_arrow_keys(GetLine *gl);
-
-/*
- * Copy the binding of the specified symbolic arrow-key binding to
- * the terminal specific, and default arrow-key key-sequences.
- */
-static int _gl_rebind_arrow_key(KeyTab *bindings, const char *name,
- const char *term_seq,
- const char *def_seq1,
- const char *def_seq2);
-
-/*
- * After the gl_read_from_file() action has been used to tell gl_get_line()
- * to temporarily read input from a file, gl_revert_input() arranges
- * for input to be reverted to the input stream last registered with
- * gl_change_terminal().
- */
-static void gl_revert_input(GetLine *gl);
-
-/*
- * Flush unwritten characters to the terminal.
- */
-static int gl_flush_output(GetLine *gl);
-
-/*
- * Change the editor style being emulated.
- */
-static int gl_change_editor(GetLine *gl, GlEditor editor);
-
-/*
- * Searching in a given direction, return the index of a given (or
- * read) character in the input line, or the character that precedes
- * it in the specified search direction. Return -1 if not found.
- */
-static int gl_find_char(GetLine *gl, int count, int forward, int onto, char c);
-
-/*
- * Return the buffer index of the nth word ending after the cursor.
- */
-static int gl_nth_word_end_forward(GetLine *gl, int n);
-
-/*
- * Return the buffer index of the nth word start after the cursor.
- */
-static int gl_nth_word_start_forward(GetLine *gl, int n);
-
-/*
- * Return the buffer index of the nth word start before the cursor.
- */
-static int gl_nth_word_start_backward(GetLine *gl, int n);
-
-/*
- * When called when vi command mode is enabled, this function saves the
- * current line and cursor position for potential restoration later
- * by the vi undo command.
- */
-static void gl_save_for_undo(GetLine *gl);
-
-/*
- * If in vi mode, switch to vi command mode.
- */
-static void gl_vi_command_mode(GetLine *gl);
-
-/*
- * In vi mode this is used to delete up to or onto a given or read
- * character in the input line. Also switch to insert mode if requested
- * after the deletion.
- */
-static int gl_delete_find(GetLine *gl, int count, char c, int forward,
- int onto, int change);
-
-/*
- * Copy the characters between the cursor and the count'th instance of
- * a specified (or read) character in the input line, into the cut buffer.
- */
-static int gl_copy_find(GetLine *gl, int count, char c, int forward, int onto);
-
-/*
- * Return the line index of the parenthesis that either matches the one under
- * the cursor, or not over a parenthesis character, the index of the next
- * close parenthesis. Return -1 if not found.
- */
-static int gl_index_of_matching_paren(GetLine *gl);
-
-/*
- * Replace a malloc'd string (or NULL), with another malloc'd copy of
- * a string (or NULL).
- */
-static int gl_record_string(char **sptr, const char *string);
-
-/*
- * Enumerate text display attributes as powers of two, suitable for
- * use in a bit-mask.
- */
-typedef enum {
- GL_TXT_STANDOUT=1, /* Display text highlighted */
- GL_TXT_UNDERLINE=2, /* Display text underlined */
- GL_TXT_REVERSE=4, /* Display text with reverse video */
- GL_TXT_BLINK=8, /* Display blinking text */
- GL_TXT_DIM=16, /* Display text in a dim font */
- GL_TXT_BOLD=32 /* Display text using a bold font */
-} GlTextAttr;
-
-/*
- * Display the prompt regardless of the current visibility mode.
- */
-static int gl_display_prompt(GetLine *gl);
-
-/*
- * Return the number of characters used by the prompt on the terminal.
- */
-static int gl_displayed_prompt_width(GetLine *gl);
-
-/*
- * Prepare the return the current input line to the caller of gl_get_line().
- */
-static int gl_line_ended(GetLine *gl, int newline_char, int archive);
-
-/*
- * Set the maximum length of a line in a user's tecla configuration
- * file (not counting comments).
- */
-#define GL_CONF_BUFLEN 100
-
-/*
- * Set the maximum number of arguments supported by individual commands
- * in tecla configuration files.
- */
-#define GL_CONF_MAXARG 10
-
-/*
- * Prototype the available action functions.
- */
-static KT_KEY_FN(gl_user_interrupt);
-static KT_KEY_FN(gl_abort);
-static KT_KEY_FN(gl_suspend);
-static KT_KEY_FN(gl_stop_output);
-static KT_KEY_FN(gl_start_output);
-static KT_KEY_FN(gl_literal_next);
-static KT_KEY_FN(gl_cursor_left);
-static KT_KEY_FN(gl_cursor_right);
-static KT_KEY_FN(gl_insert_mode);
-static KT_KEY_FN(gl_beginning_of_line);
-static KT_KEY_FN(gl_end_of_line);
-static KT_KEY_FN(gl_delete_line);
-static KT_KEY_FN(gl_kill_line);
-static KT_KEY_FN(gl_forward_word);
-static KT_KEY_FN(gl_backward_word);
-static KT_KEY_FN(gl_forward_delete_char);
-static KT_KEY_FN(gl_backward_delete_char);
-static KT_KEY_FN(gl_forward_delete_word);
-static KT_KEY_FN(gl_backward_delete_word);
-static KT_KEY_FN(gl_delete_refind);
-static KT_KEY_FN(gl_delete_invert_refind);
-static KT_KEY_FN(gl_delete_to_column);
-static KT_KEY_FN(gl_delete_to_parenthesis);
-static KT_KEY_FN(gl_forward_delete_find);
-static KT_KEY_FN(gl_backward_delete_find);
-static KT_KEY_FN(gl_forward_delete_to);
-static KT_KEY_FN(gl_backward_delete_to);
-static KT_KEY_FN(gl_upcase_word);
-static KT_KEY_FN(gl_downcase_word);
-static KT_KEY_FN(gl_capitalize_word);
-static KT_KEY_FN(gl_redisplay);
-static KT_KEY_FN(gl_clear_screen);
-static KT_KEY_FN(gl_transpose_chars);
-static KT_KEY_FN(gl_set_mark);
-static KT_KEY_FN(gl_exchange_point_and_mark);
-static KT_KEY_FN(gl_kill_region);
-static KT_KEY_FN(gl_copy_region_as_kill);
-static KT_KEY_FN(gl_yank);
-static KT_KEY_FN(gl_up_history);
-static KT_KEY_FN(gl_down_history);
-static KT_KEY_FN(gl_history_search_backward);
-static KT_KEY_FN(gl_history_re_search_backward);
-static KT_KEY_FN(gl_history_search_forward);
-static KT_KEY_FN(gl_history_re_search_forward);
-static KT_KEY_FN(gl_complete_word);
-static KT_KEY_FN(gl_expand_filename);
-static KT_KEY_FN(gl_del_char_or_list_or_eof);
-static KT_KEY_FN(gl_list_or_eof);
-static KT_KEY_FN(gl_read_from_file);
-static KT_KEY_FN(gl_beginning_of_history);
-static KT_KEY_FN(gl_end_of_history);
-static KT_KEY_FN(gl_digit_argument);
-static KT_KEY_FN(gl_newline);
-static KT_KEY_FN(gl_repeat_history);
-static KT_KEY_FN(gl_vi_insert);
-static KT_KEY_FN(gl_vi_overwrite);
-static KT_KEY_FN(gl_change_case);
-static KT_KEY_FN(gl_vi_insert_at_bol);
-static KT_KEY_FN(gl_vi_append_at_eol);
-static KT_KEY_FN(gl_vi_append);
-static KT_KEY_FN(gl_list_glob);
-static KT_KEY_FN(gl_backward_kill_line);
-static KT_KEY_FN(gl_goto_column);
-static KT_KEY_FN(gl_forward_to_word);
-static KT_KEY_FN(gl_vi_replace_char);
-static KT_KEY_FN(gl_vi_change_rest_of_line);
-static KT_KEY_FN(gl_vi_change_line);
-static KT_KEY_FN(gl_vi_change_to_bol);
-static KT_KEY_FN(gl_vi_change_refind);
-static KT_KEY_FN(gl_vi_change_invert_refind);
-static KT_KEY_FN(gl_vi_change_to_column);
-static KT_KEY_FN(gl_vi_change_to_parenthesis);
-static KT_KEY_FN(gl_vi_forward_change_word);
-static KT_KEY_FN(gl_vi_backward_change_word);
-static KT_KEY_FN(gl_vi_forward_change_find);
-static KT_KEY_FN(gl_vi_backward_change_find);
-static KT_KEY_FN(gl_vi_forward_change_to);
-static KT_KEY_FN(gl_vi_backward_change_to);
-static KT_KEY_FN(gl_vi_forward_change_char);
-static KT_KEY_FN(gl_vi_backward_change_char);
-static KT_KEY_FN(gl_forward_copy_char);
-static KT_KEY_FN(gl_backward_copy_char);
-static KT_KEY_FN(gl_forward_find_char);
-static KT_KEY_FN(gl_backward_find_char);
-static KT_KEY_FN(gl_forward_to_char);
-static KT_KEY_FN(gl_backward_to_char);
-static KT_KEY_FN(gl_repeat_find_char);
-static KT_KEY_FN(gl_invert_refind_char);
-static KT_KEY_FN(gl_append_yank);
-static KT_KEY_FN(gl_backward_copy_word);
-static KT_KEY_FN(gl_forward_copy_word);
-static KT_KEY_FN(gl_copy_to_bol);
-static KT_KEY_FN(gl_copy_refind);
-static KT_KEY_FN(gl_copy_invert_refind);
-static KT_KEY_FN(gl_copy_to_column);
-static KT_KEY_FN(gl_copy_to_parenthesis);
-static KT_KEY_FN(gl_copy_rest_of_line);
-static KT_KEY_FN(gl_copy_line);
-static KT_KEY_FN(gl_backward_copy_find);
-static KT_KEY_FN(gl_forward_copy_find);
-static KT_KEY_FN(gl_backward_copy_to);
-static KT_KEY_FN(gl_forward_copy_to);
-static KT_KEY_FN(gl_vi_undo);
-static KT_KEY_FN(gl_emacs_editing_mode);
-static KT_KEY_FN(gl_vi_editing_mode);
-static KT_KEY_FN(gl_ring_bell);
-static KT_KEY_FN(gl_vi_repeat_change);
-static KT_KEY_FN(gl_find_parenthesis);
-static KT_KEY_FN(gl_read_init_files);
-static KT_KEY_FN(gl_list_history);
-
-/*
- * Name the available action functions.
- */
-static const struct {const char *name; KT_KEY_FN(*fn);} gl_actions[] = {
- {"user-interrupt", gl_user_interrupt},
- {"abort", gl_abort},
- {"suspend", gl_suspend},
- {"stop-output", gl_stop_output},
- {"start-output", gl_start_output},
- {"literal-next", gl_literal_next},
- {"cursor-right", gl_cursor_right},
- {"cursor-left", gl_cursor_left},
- {"insert-mode", gl_insert_mode},
- {"beginning-of-line", gl_beginning_of_line},
- {"end-of-line", gl_end_of_line},
- {"delete-line", gl_delete_line},
- {"kill-line", gl_kill_line},
- {"forward-word", gl_forward_word},
- {"backward-word", gl_backward_word},
- {"forward-delete-char", gl_forward_delete_char},
- {"backward-delete-char", gl_backward_delete_char},
- {"forward-delete-word", gl_forward_delete_word},
- {"backward-delete-word", gl_backward_delete_word},
- {"delete-refind", gl_delete_refind},
- {"delete-invert-refind", gl_delete_invert_refind},
- {"delete-to-column", gl_delete_to_column},
- {"delete-to-parenthesis", gl_delete_to_parenthesis},
- {"forward-delete-find", gl_forward_delete_find},
- {"backward-delete-find", gl_backward_delete_find},
- {"forward-delete-to", gl_forward_delete_to},
- {"backward-delete-to", gl_backward_delete_to},
- {"upcase-word", gl_upcase_word},
- {"downcase-word", gl_downcase_word},
- {"capitalize-word", gl_capitalize_word},
- {"redisplay", gl_redisplay},
- {"clear-screen", gl_clear_screen},
- {"transpose-chars", gl_transpose_chars},
- {"set-mark", gl_set_mark},
- {"exchange-point-and-mark", gl_exchange_point_and_mark},
- {"kill-region", gl_kill_region},
- {"copy-region-as-kill", gl_copy_region_as_kill},
- {"yank", gl_yank},
- {"up-history", gl_up_history},
- {"down-history", gl_down_history},
- {"history-search-backward", gl_history_search_backward},
- {"history-re-search-backward", gl_history_re_search_backward},
- {"history-search-forward", gl_history_search_forward},
- {"history-re-search-forward", gl_history_re_search_forward},
- {"complete-word", gl_complete_word},
- {"expand-filename", gl_expand_filename},
- {"del-char-or-list-or-eof", gl_del_char_or_list_or_eof},
- {"read-from-file", gl_read_from_file},
- {"beginning-of-history", gl_beginning_of_history},
- {"end-of-history", gl_end_of_history},
- {"digit-argument", gl_digit_argument},
- {"newline", gl_newline},
- {"repeat-history", gl_repeat_history},
- {"vi-insert", gl_vi_insert},
- {"vi-overwrite", gl_vi_overwrite},
- {"vi-insert-at-bol", gl_vi_insert_at_bol},
- {"vi-append-at-eol", gl_vi_append_at_eol},
- {"vi-append", gl_vi_append},
- {"change-case", gl_change_case},
- {"list-glob", gl_list_glob},
- {"backward-kill-line", gl_backward_kill_line},
- {"goto-column", gl_goto_column},
- {"forward-to-word", gl_forward_to_word},
- {"vi-replace-char", gl_vi_replace_char},
- {"vi-change-rest-of-line", gl_vi_change_rest_of_line},
- {"vi-change-line", gl_vi_change_line},
- {"vi-change-to-bol", gl_vi_change_to_bol},
- {"vi-change-refind", gl_vi_change_refind},
- {"vi-change-invert-refind", gl_vi_change_invert_refind},
- {"vi-change-to-column", gl_vi_change_to_column},
- {"vi-change-to-parenthesis", gl_vi_change_to_parenthesis},
- {"forward-copy-char", gl_forward_copy_char},
- {"backward-copy-char", gl_backward_copy_char},
- {"forward-find-char", gl_forward_find_char},
- {"backward-find-char", gl_backward_find_char},
- {"forward-to-char", gl_forward_to_char},
- {"backward-to-char", gl_backward_to_char},
- {"repeat-find-char", gl_repeat_find_char},
- {"invert-refind-char", gl_invert_refind_char},
- {"append-yank", gl_append_yank},
- {"backward-copy-word", gl_backward_copy_word},
- {"forward-copy-word", gl_forward_copy_word},
- {"copy-to-bol", gl_copy_to_bol},
- {"copy-refind", gl_copy_refind},
- {"copy-invert-refind", gl_copy_invert_refind},
- {"copy-to-column", gl_copy_to_column},
- {"copy-to-parenthesis", gl_copy_to_parenthesis},
- {"copy-rest-of-line", gl_copy_rest_of_line},
- {"copy-line", gl_copy_line},
- {"backward-copy-find", gl_backward_copy_find},
- {"forward-copy-find", gl_forward_copy_find},
- {"backward-copy-to", gl_backward_copy_to},
- {"forward-copy-to", gl_forward_copy_to},
- {"list-or-eof", gl_list_or_eof},
- {"vi-undo", gl_vi_undo},
- {"vi-backward-change-word", gl_vi_backward_change_word},
- {"vi-forward-change-word", gl_vi_forward_change_word},
- {"vi-backward-change-find", gl_vi_backward_change_find},
- {"vi-forward-change-find", gl_vi_forward_change_find},
- {"vi-backward-change-to", gl_vi_backward_change_to},
- {"vi-forward-change-to", gl_vi_forward_change_to},
- {"vi-backward-change-char", gl_vi_backward_change_char},
- {"vi-forward-change-char", gl_vi_forward_change_char},
- {"emacs-mode", gl_emacs_editing_mode},
- {"vi-mode", gl_vi_editing_mode},
- {"ring-bell", gl_ring_bell},
- {"vi-repeat-change", gl_vi_repeat_change},
- {"find-parenthesis", gl_find_parenthesis},
- {"read-init-files", gl_read_init_files},
- {"list-history", gl_list_history},
-};
-
-/*
- * Define the default key-bindings in emacs mode.
- */
-static const KtKeyBinding gl_emacs_bindings[] = {
- {"right", "cursor-right"},
- {"^F", "cursor-right"},
- {"left", "cursor-left"},
- {"^B", "cursor-left"},
- {"M-i", "insert-mode"},
- {"M-I", "insert-mode"},
- {"^A", "beginning-of-line"},
- {"^E", "end-of-line"},
- {"^U", "delete-line"},
- {"^K", "kill-line"},
- {"M-f", "forward-word"},
- {"M-F", "forward-word"},
- {"M-b", "backward-word"},
- {"M-B", "backward-word"},
- {"^D", "del-char-or-list-or-eof"},
- {"^H", "backward-delete-char"},
- {"^?", "backward-delete-char"},
- {"M-d", "forward-delete-word"},
- {"M-D", "forward-delete-word"},
- {"M-^H", "backward-delete-word"},
- {"M-^?", "backward-delete-word"},
- {"M-u", "upcase-word"},
- {"M-U", "upcase-word"},
- {"M-l", "downcase-word"},
- {"M-L", "downcase-word"},
- {"M-c", "capitalize-word"},
- {"M-C", "capitalize-word"},
- {"^R", "redisplay"},
- {"^L", "clear-screen"},
- {"^T", "transpose-chars"},
- {"^@", "set-mark"},
- {"^X^X", "exchange-point-and-mark"},
- {"^W", "kill-region"},
- {"M-w", "copy-region-as-kill"},
- {"M-W", "copy-region-as-kill"},
- {"^Y", "yank"},
- {"^P", "up-history"},
- {"up", "up-history"},
- {"^N", "down-history"},
- {"down", "down-history"},
- {"M-p", "history-search-backward"},
- {"M-P", "history-search-backward"},
- {"M-n", "history-search-forward"},
- {"M-N", "history-search-forward"},
- {"\t", "complete-word"},
- {"^X*", "expand-filename"},
- {"^X^F", "read-from-file"},
- {"^X^R", "read-init-files"},
- {"^Xg", "list-glob"},
- {"^XG", "list-glob"},
- {"^Xh", "list-history"},
- {"^XH", "list-history"},
- {"M-<", "beginning-of-history"},
- {"M->", "end-of-history"},
- {"M-0", "digit-argument"},
- {"M-1", "digit-argument"},
- {"M-2", "digit-argument"},
- {"M-3", "digit-argument"},
- {"M-4", "digit-argument"},
- {"M-5", "digit-argument"},
- {"M-6", "digit-argument"},
- {"M-7", "digit-argument"},
- {"M-8", "digit-argument"},
- {"M-9", "digit-argument"},
- {"\r", "newline"},
- {"\n", "newline"},
- {"M-o", "repeat-history"},
- {"M-C-v", "vi-mode"},
-};
-
-/*
- * Define the default key-bindings in vi mode. Note that in vi-mode
- * meta-key bindings are command-mode bindings. For example M-i first
- * switches to command mode if not already in that mode, then moves
- * the cursor one position right, as in vi.
- */
-static const KtKeyBinding gl_vi_bindings[] = {
- {"^D", "list-or-eof"},
- {"^G", "list-glob"},
- {"^H", "backward-delete-char"},
- {"\t", "complete-word"},
- {"\r", "newline"},
- {"\n", "newline"},
- {"^L", "clear-screen"},
- {"^N", "down-history"},
- {"^P", "up-history"},
- {"^R", "redisplay"},
- {"^U", "backward-kill-line"},
- {"^W", "backward-delete-word"},
- {"^X^F", "read-from-file"},
- {"^X^R", "read-init-files"},
- {"^X*", "expand-filename"},
- {"^?", "backward-delete-char"},
- {"M- ", "cursor-right"},
- {"M-$", "end-of-line"},
- {"M-*", "expand-filename"},
- {"M-+", "down-history"},
- {"M--", "up-history"},
- {"M-<", "beginning-of-history"},
- {"M->", "end-of-history"},
- {"M-^", "beginning-of-line"},
- {"M-;", "repeat-find-char"},
- {"M-,", "invert-refind-char"},
- {"M-|", "goto-column"},
- {"M-~", "change-case"},
- {"M-.", "vi-repeat-change"},
- {"M-%", "find-parenthesis"},
- {"M-0", "digit-argument"},
- {"M-1", "digit-argument"},
- {"M-2", "digit-argument"},
- {"M-3", "digit-argument"},
- {"M-4", "digit-argument"},
- {"M-5", "digit-argument"},
- {"M-6", "digit-argument"},
- {"M-7", "digit-argument"},
- {"M-8", "digit-argument"},
- {"M-9", "digit-argument"},
- {"M-a", "vi-append"},
- {"M-A", "vi-append-at-eol"},
- {"M-b", "backward-word"},
- {"M-B", "backward-word"},
- {"M-C", "vi-change-rest-of-line"},
- {"M-cb", "vi-backward-change-word"},
- {"M-cB", "vi-backward-change-word"},
- {"M-cc", "vi-change-line"},
- {"M-ce", "vi-forward-change-word"},
- {"M-cE", "vi-forward-change-word"},
- {"M-cw", "vi-forward-change-word"},
- {"M-cW", "vi-forward-change-word"},
- {"M-cF", "vi-backward-change-find"},
- {"M-cf", "vi-forward-change-find"},
- {"M-cT", "vi-backward-change-to"},
- {"M-ct", "vi-forward-change-to"},
- {"M-c;", "vi-change-refind"},
- {"M-c,", "vi-change-invert-refind"},
- {"M-ch", "vi-backward-change-char"},
- {"M-c^H", "vi-backward-change-char"},
- {"M-c^?", "vi-backward-change-char"},
- {"M-cl", "vi-forward-change-char"},
- {"M-c ", "vi-forward-change-char"},
- {"M-c^", "vi-change-to-bol"},
- {"M-c0", "vi-change-to-bol"},
- {"M-c$", "vi-change-rest-of-line"},
- {"M-c|", "vi-change-to-column"},
- {"M-c%", "vi-change-to-parenthesis"},
- {"M-dh", "backward-delete-char"},
- {"M-d^H", "backward-delete-char"},
- {"M-d^?", "backward-delete-char"},
- {"M-dl", "forward-delete-char"},
- {"M-d ", "forward-delete-char"},
- {"M-dd", "delete-line"},
- {"M-db", "backward-delete-word"},
- {"M-dB", "backward-delete-word"},
- {"M-de", "forward-delete-word"},
- {"M-dE", "forward-delete-word"},
- {"M-dw", "forward-delete-word"},
- {"M-dW", "forward-delete-word"},
- {"M-dF", "backward-delete-find"},
- {"M-df", "forward-delete-find"},
- {"M-dT", "backward-delete-to"},
- {"M-dt", "forward-delete-to"},
- {"M-d;", "delete-refind"},
- {"M-d,", "delete-invert-refind"},
- {"M-d^", "backward-kill-line"},
- {"M-d0", "backward-kill-line"},
- {"M-d$", "kill-line"},
- {"M-D", "kill-line"},
- {"M-d|", "delete-to-column"},
- {"M-d%", "delete-to-parenthesis"},
- {"M-e", "forward-word"},
- {"M-E", "forward-word"},
- {"M-f", "forward-find-char"},
- {"M-F", "backward-find-char"},
- {"M--", "up-history"},
- {"M-h", "cursor-left"},
- {"M-H", "beginning-of-history"},
- {"M-i", "vi-insert"},
- {"M-I", "vi-insert-at-bol"},
- {"M-j", "down-history"},
- {"M-J", "history-search-forward"},
- {"M-k", "up-history"},
- {"M-K", "history-search-backward"},
- {"M-l", "cursor-right"},
- {"M-L", "end-of-history"},
- {"M-n", "history-re-search-forward"},
- {"M-N", "history-re-search-backward"},
- {"M-p", "append-yank"},
- {"M-P", "yank"},
- {"M-r", "vi-replace-char"},
- {"M-R", "vi-overwrite"},
- {"M-s", "vi-forward-change-char"},
- {"M-S", "vi-change-line"},
- {"M-t", "forward-to-char"},
- {"M-T", "backward-to-char"},
- {"M-u", "vi-undo"},
- {"M-w", "forward-to-word"},
- {"M-W", "forward-to-word"},
- {"M-x", "forward-delete-char"},
- {"M-X", "backward-delete-char"},
- {"M-yh", "backward-copy-char"},
- {"M-y^H", "backward-copy-char"},
- {"M-y^?", "backward-copy-char"},
- {"M-yl", "forward-copy-char"},
- {"M-y ", "forward-copy-char"},
- {"M-ye", "forward-copy-word"},
- {"M-yE", "forward-copy-word"},
- {"M-yw", "forward-copy-word"},
- {"M-yW", "forward-copy-word"},
- {"M-yb", "backward-copy-word"},
- {"M-yB", "backward-copy-word"},
- {"M-yf", "forward-copy-find"},
- {"M-yF", "backward-copy-find"},
- {"M-yt", "forward-copy-to"},
- {"M-yT", "backward-copy-to"},
- {"M-y;", "copy-refind"},
- {"M-y,", "copy-invert-refind"},
- {"M-y^", "copy-to-bol"},
- {"M-y0", "copy-to-bol"},
- {"M-y$", "copy-rest-of-line"},
- {"M-yy", "copy-line"},
- {"M-Y", "copy-line"},
- {"M-y|", "copy-to-column"},
- {"M-y%", "copy-to-parenthesis"},
- {"M-^E", "emacs-mode"},
- {"M-^H", "cursor-left"},
- {"M-^?", "cursor-left"},
- {"M-^L", "clear-screen"},
- {"M-^N", "down-history"},
- {"M-^P", "up-history"},
- {"M-^R", "redisplay"},
- {"M-^D", "list-or-eof"},
- {"M-\r", "newline"},
- {"M-\t", "complete-word"},
- {"M-\n", "newline"},
- {"M-^X^R", "read-init-files"},
- {"M-^Xh", "list-history"},
- {"M-^XH", "list-history"},
- {"down", "down-history"},
- {"up", "up-history"},
- {"left", "cursor-left"},
- {"right", "cursor-right"},
-};
-
-/*.......................................................................
- * Create a new GetLine object.
- *
- * Input:
- * linelen size_t The maximum line length to allow for.
- * histlen size_t The number of bytes to allocate for recording
- * a circular buffer of history lines.
- * Output:
- * return GetLine * The new object, or NULL on error.
- */
-GetLine *new_GetLine(size_t linelen, size_t histlen)
-{
- GetLine *gl; /* The object to be returned */
- int i;
-/*
- * Check the arguments.
- */
- if(linelen < 10) {
- fprintf(stderr, "new_GetLine: Line length too small.\n");
- return NULL;
- };
-/*
- * Allocate the container.
- */
- gl = (GetLine *) malloc(sizeof(GetLine));
- if(!gl) {
- fprintf(stderr, "new_GetLine: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to del_GetLine().
- */
- gl->glh = NULL;
- gl->cpl = NULL;
- gl->cpl_fn = cpl_file_completions;
- gl->cpl_data = NULL;
- gl->ef = NULL;
- gl->capmem = NULL;
- gl->term = NULL;
- gl->is_term = 0;
- gl->input_fd = -1;
- gl->output_fd = -1;
- gl->input_fp = NULL;
- gl->output_fp = NULL;
- gl->file_fp = NULL;
- gl->linelen = linelen;
- gl->line = NULL;
- gl->cutbuf = NULL;
- gl->linelen = linelen;
- gl->prompt = "";
- gl->prompt_len = 0;
- gl->prompt_changed = 0;
- gl->prompt_style = GL_LITERAL_PROMPT;
- gl->vi.undo.line = NULL;
- gl->vi.undo.buff_curpos = 0;
- gl->vi.undo.ntotal = 0;
- gl->vi.undo.saved = 0;
- gl->vi.repeat.fn = 0;
- gl->vi.repeat.count = 0;
- gl->vi.repeat.input_curpos = 0;
- gl->vi.repeat.command_curpos = 0;
- gl->vi.repeat.input_char = '\0';
- gl->vi.repeat.saved = 0;
- gl->vi.repeat.active = 0;
- gl->sig_mem = NULL;
- gl->sigs = NULL;
- sigemptyset(&gl->old_signal_set);
- sigemptyset(&gl->new_signal_set);
- gl->bindings = NULL;
- gl->ntotal = 0;
- gl->buff_curpos = 0;
- gl->term_curpos = 0;
- gl->buff_mark = 0;
- gl->insert_curpos = 0;
- gl->insert = 1;
- gl->number = -1;
- gl->endline = 0;
- gl->current_fn = 0;
- gl->current_count = 0;
- gl->preload_id = 0;
- gl->preload_history = 0;
- gl->keyseq_count = 0;
- gl->last_search = -1;
- gl->editor = GL_EMACS_MODE;
- gl->silence_bell = 0;
- gl->vi.command = 0;
- gl->vi.find_forward = 0;
- gl->vi.find_onto = 0;
- gl->vi.find_char = '\0';
- gl->left = NULL;
- gl->right = NULL;
- gl->up = NULL;
- gl->down = NULL;
- gl->home = NULL;
- gl->bol = 0;
- gl->clear_eol = NULL;
- gl->clear_eod = NULL;
- gl->u_arrow = NULL;
- gl->d_arrow = NULL;
- gl->l_arrow = NULL;
- gl->r_arrow = NULL;
- gl->sound_bell = NULL;
- gl->bold = NULL;
- gl->underline = NULL;
- gl->standout = NULL;
- gl->dim = NULL;
- gl->reverse = NULL;
- gl->blink = NULL;
- gl->text_attr_off = NULL;
- gl->nline = 0;
- gl->ncolumn = 0;
-#ifdef USE_TERMINFO
- gl->left_n = NULL;
- gl->right_n = NULL;
-#elif defined(USE_TERMCAP)
- gl->tgetent_buf = NULL;
- gl->tgetstr_buf = NULL;
-#endif
- gl->app_file = NULL;
- gl->user_file = NULL;
- gl->configured = 0;
- gl->echo = 1;
- gl->last_signal = -1;
-#ifdef HAVE_SELECT
- gl->fd_node_mem = NULL;
- gl->fd_nodes = NULL;
- FD_ZERO(&gl->rfds);
- FD_ZERO(&gl->wfds);
- FD_ZERO(&gl->ufds);
- gl->max_fd = 0;
-#endif
-/*
- * Allocate the history buffer.
- */
- gl->glh = _new_GlHistory(histlen);
- if(!gl->glh)
- return del_GetLine(gl);
-/*
- * Allocate the resource object for file-completion.
- */
- gl->cpl = new_WordCompletion();
- if(!gl->cpl)
- return del_GetLine(gl);
-/*
- * Allocate the resource object for file-completion.
- */
- gl->ef = new_ExpandFile();
- if(!gl->ef)
- return del_GetLine(gl);
-/*
- * Allocate a string-segment memory allocator for use in storing terminal
- * capablity strings.
- */
- gl->capmem = _new_StringGroup(CAPMEM_SEGMENT_SIZE);
- if(!gl->capmem)
- return del_GetLine(gl);
-/*
- * Allocate a line buffer, leaving 2 extra characters for the terminating
- * '\n' and '\0' characters
- */
- gl->line = (char *) malloc(linelen + 2);
- if(!gl->line) {
- fprintf(stderr,
- "new_GetLine: Insufficient memory to allocate line buffer.\n");
- return del_GetLine(gl);
- };
- gl->line[0] = '\0';
-/*
- * Allocate a cut buffer.
- */
- gl->cutbuf = (char *) malloc(linelen + 2);
- if(!gl->cutbuf) {
- fprintf(stderr,
- "new_GetLine: Insufficient memory to allocate cut buffer.\n");
- return del_GetLine(gl);
- };
- gl->cutbuf[0] = '\0';
-/*
- * Allocate a vi undo buffer.
- */
- gl->vi.undo.line = (char *) malloc(linelen + 2);
- if(!gl->vi.undo.line) {
- fprintf(stderr,
- "new_GetLine: Insufficient memory to allocate undo buffer.\n");
- return del_GetLine(gl);
- };
- gl->vi.undo.line[0] = '\0';
-/*
- * Allocate a freelist from which to allocate nodes for the list
- * of signals.
- */
- gl->sig_mem = _new_FreeList("new_GetLine", sizeof(GlSignalNode),
- GLS_FREELIST_BLOCKING);
- if(!gl->sig_mem)
- return del_GetLine(gl);
-/*
- * Install dispositions for the default list of signals that gl_get_line()
- * traps.
- */
- for(i=0; isigno, sig->flags, sig->after,
- sig->errno_value))
- return del_GetLine(gl);
- };
-/*
- * Allocate an empty table of key bindings.
- */
- gl->bindings = _new_KeyTab();
- if(!gl->bindings)
- return del_GetLine(gl);
-/*
- * Define the available actions that can be bound to key sequences.
- */
- for(i=0; ibindings, gl_actions[i].name, gl_actions[i].fn))
- return del_GetLine(gl);
- };
-/*
- * Set up the default bindings.
- */
- if(gl_change_editor(gl, gl->editor))
- return del_GetLine(gl);
-/*
- * Allocate termcap buffers.
- */
-#ifdef USE_TERMCAP
- gl->tgetent_buf = (char *) malloc(TERMCAP_BUF_SIZE);
- gl->tgetstr_buf = (char *) malloc(TERMCAP_BUF_SIZE);
- if(!gl->tgetent_buf || !gl->tgetstr_buf) {
- fprintf(stderr, "new_GetLine: Insufficient memory for termcap buffers.\n");
- return del_GetLine(gl);
- };
-#endif
-/*
- * Set up for I/O assuming stdin and stdout.
- */
- if(gl_change_terminal(gl, stdin, stdout, getenv("TERM")))
- return del_GetLine(gl);
-/*
- * Create a freelist for use in allocating GlFdNode list nodes.
- */
-#ifdef HAVE_SELECT
- gl->fd_node_mem = _new_FreeList("new_GetLine", sizeof(GlFdNode),
- GLFD_FREELIST_BLOCKING);
- if(!gl->fd_node_mem)
- return del_GetLine(gl);
-#endif
-/*
- * We are done for now.
- */
- return gl;
-}
-
-/*.......................................................................
- * Delete a GetLine object.
- *
- * Input:
- * gl GetLine * The object to be deleted.
- * Output:
- * return GetLine * The deleted object (always NULL).
- */
-GetLine *del_GetLine(GetLine *gl)
-{
- if(gl) {
- gl->glh = _del_GlHistory(gl->glh);
- gl->cpl = del_WordCompletion(gl->cpl);
- gl->ef = del_ExpandFile(gl->ef);
- gl->capmem = _del_StringGroup(gl->capmem);
- if(gl->line)
- free(gl->line);
- if(gl->cutbuf)
- free(gl->cutbuf);
- if(gl->vi.undo.line)
- free(gl->vi.undo.line);
- gl->sig_mem = _del_FreeList(NULL, gl->sig_mem, 1);
- gl->sigs = NULL; /* Already freed by freeing sig_mem */
- gl->bindings = _del_KeyTab(gl->bindings);
-#ifdef USE_TERMCAP
- if(gl->tgetent_buf)
- free(gl->tgetent_buf);
- if(gl->tgetstr_buf)
- free(gl->tgetstr_buf);
-#endif
- if(gl->file_fp)
- fclose(gl->file_fp);
- if(gl->term)
- free(gl->term);
-#ifdef HAVE_SELECT
- gl->fd_node_mem = _del_FreeList(NULL, gl->fd_node_mem, 1);
-#endif
- free(gl);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Bind a control or meta character to an action.
- *
- * Input:
- * gl GetLine * The resource object of this program.
- * binder KtBinder The source of the binding.
- * c char The control or meta character.
- * If this is '\0', the call is ignored.
- * action const char * The action name to bind the key to.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_bind_control_char(GetLine *gl, KtBinder binder, char c,
- const char *action)
-{
- char keyseq[2];
-/*
- * Quietly reject binding to the NUL control character, since this
- * is an ambiguous prefix of all bindings.
- */
- if(c == '\0')
- return 0;
-/*
- * Making sure not to bind characters which aren't either control or
- * meta characters.
- */
- if(IS_CTRL_CHAR(c) || IS_META_CHAR(c)) {
- keyseq[0] = c;
- keyseq[1] = '\0';
- } else {
- return 0;
- };
-/*
- * Install the binding.
- */
- return _kt_set_keybinding(gl->bindings, binder, keyseq, action);
-}
-
-/*.......................................................................
- * Read a line from the user.
- *
- * Input:
- * gl GetLine * A resource object returned by new_GetLine().
- * prompt char * The prompt to prefix the line with.
- * start_line char * The initial contents of the input line, or NULL
- * if it should start out empty.
- * start_pos int If start_line isn't NULL, this specifies the
- * index of the character over which the cursor
- * should initially be positioned within the line.
- * If you just want it to follow the last character
- * of the line, send -1.
- * Output:
- * return char * An internal buffer containing the input line, or
- * NULL at the end of input. If the line fitted in
- * the buffer there will be a '\n' newline character
- * before the terminating '\0'. If it was truncated
- * there will be no newline character, and the remains
- * of the line should be retrieved via further calls
- * to this function.
- */
-char *gl_get_line(GetLine *gl, const char *prompt,
- const char *start_line, int start_pos)
-{
- int waserr = 0; /* True if an error occurs */
-/*
- * Check the arguments.
- */
- if(!gl || !prompt) {
- fprintf(stderr, "gl_get_line: NULL argument(s).\n");
- return NULL;
- };
-/*
- * If this is the first call to this function since new_GetLine(),
- * complete any postponed configuration.
- */
- if(!gl->configured) {
- (void) gl_configure_getline(gl, NULL, NULL, TECLA_CONFIG_FILE);
- gl->configured = 1;
- };
-/*
- * If input is temporarily being taken from a file, return lines
- * from the file until the file is exhausted, then revert to
- * the normal input stream.
- */
- if(gl->file_fp) {
- if(fgets(gl->line, gl->linelen, gl->file_fp))
- return gl->line;
- gl_revert_input(gl);
- };
-/*
- * Is input coming from a non-interactive source?
- */
- if(!gl->is_term)
- return fgets(gl->line, gl->linelen, gl->input_fp);
-/*
- * Record the new prompt and its displayed width.
- */
- gl_replace_prompt(gl, prompt);
-/*
- * Before installing our signal handler functions, record the fact
- * that there are no pending signals.
- */
- gl_pending_signal = -1;
-/*
- * Temporarily override the signal handlers of the calling program,
- * so that we can intercept signals that would leave the terminal
- * in a bad state.
- */
- waserr = gl_override_signal_handlers(gl);
-/*
- * After recording the current terminal settings, switch the terminal
- * into raw input mode.
- */
- waserr = waserr || gl_raw_terminal_mode(gl);
-/*
- * Attempt to read the line.
- */
- waserr = waserr || gl_get_input_line(gl, start_line, start_pos);
-/*
- * Restore terminal settings.
- */
- gl_restore_terminal_attributes(gl);
-/*
- * Restore the signal handlers.
- */
- gl_restore_signal_handlers(gl);
-/*
- * Having restored the program terminal and signal environment,
- * re-submit any signals that were received.
- */
- if(gl_pending_signal != -1) {
- raise(gl_pending_signal);
- waserr = 1;
- };
-/*
- * If gl_get_input_line() aborted input due to the user asking to
- * temporarily read lines from a file, read the first line from
- * this file.
- */
- if(!waserr && gl->file_fp)
- return gl_get_line(gl, prompt, NULL, 0);
-/*
- * Return the new input line.
- */
- return waserr ? NULL : gl->line;
-}
-
-/*.......................................................................
- * Record of the signal handlers of the calling program, so that they
- * can be restored later.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_override_signal_handlers(GetLine *gl)
-{
- GlSignalNode *sig; /* A node in the list of signals to be caught */
-/*
- * Set up our signal handler.
- */
- SigAction act;
- act.sa_handler = gl_signal_handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = 0;
-/*
- * Get the process signal mask so that we can see which signals the
- * calling program currently has blocked, and so that we can restore this
- * mask before returning to the calling program.
- */
- if(sigprocmask(SIG_SETMASK, NULL, &gl->old_signal_set) == -1) {
- fprintf(stderr, "gl_get_line(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
-/*
- * Form a new process signal mask from the list of signals that we have
- * been asked to trap.
- */
- sigemptyset(&gl->new_signal_set);
- for(sig=gl->sigs; sig; sig=sig->next) {
-/*
- * Trap this signal? If it is blocked by the calling program and we
- * haven't been told to unblock it, don't arrange to trap this signal.
- */
- if(sig->flags & GLS_UNBLOCK_SIG ||
- !sigismember(&gl->old_signal_set, sig->signo)) {
- if(sigaddset(&gl->new_signal_set, sig->signo) == -1) {
- fprintf(stderr, "gl_get_line(): sigaddset error: %s\n",
- strerror(errno));
- return 1;
- };
- };
- };
-/*
- * Before installing our signal handlers, block all of the signals
- * that we are going to be trapping.
- */
- if(sigprocmask(SIG_BLOCK, &gl->new_signal_set, NULL) == -1) {
- fprintf(stderr, "gl_get_line(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
-/*
- * Override the actions of the signals that we are trapping.
- */
- for(sig=gl->sigs; sig; sig=sig->next) {
- if(sigismember(&gl->new_signal_set, sig->signo) &&
- sigaction(sig->signo, &act, &sig->original)) {
- fprintf(stderr, "gl_get_line(): sigaction error: %s\n", strerror(errno));
- return 1;
- };
- };
-/*
- * Just in case a SIGWINCH signal was sent to the process while our
- * SIGWINCH signal handler wasn't in place, check to see if the terminal
- * size needs updating.
- */
-#ifdef USE_SIGWINCH
- if(gl_resize_terminal(gl, 0))
- return 1;
-#endif
- return 0;
-}
-
-/*.......................................................................
- * Restore the signal handlers of the calling program.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_restore_signal_handlers(GetLine *gl)
-{
- GlSignalNode *sig; /* A node in the list of signals to be caught */
-/*
- * Restore application signal handlers that were overriden
- * by gl_override_signal_handlers().
- */
- for(sig=gl->sigs; sig; sig=sig->next) {
- if(sigismember(&gl->new_signal_set, sig->signo) &&
- sigaction(sig->signo, &sig->original, NULL)) {
- fprintf(stderr, "gl_get_line(): sigaction error: %s\n", strerror(errno));
- return 1;
- };
- };
-/*
- * Restore the original signal mask.
- */
- if(sigprocmask(SIG_SETMASK, &gl->old_signal_set, NULL) == -1) {
- fprintf(stderr, "gl_get_line(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * This signal handler simply records the fact that a given signal was
- * caught in the file-scope gl_pending_signal variable.
- */
-static void gl_signal_handler(int signo)
-{
- gl_pending_signal = signo;
- siglongjmp(gl_setjmp_buffer, 1);
-}
-
-/*.......................................................................
- * Switch the terminal into raw mode after storing the previous terminal
- * settings in gl->attributes.
- *
- * Input:
- * gl GetLine * The resource object of this program.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_raw_terminal_mode(GetLine *gl)
-{
- Termios newattr; /* The new terminal attributes */
-/*
- * Record the current terminal attributes.
- */
- if(tcgetattr(gl->input_fd, &gl->oldattr)) {
- fprintf(stderr, "getline(): tcgetattr error: %s\n", strerror(errno));
- return 1;
- };
-/*
- * This function shouldn't do anything but record the current terminal
- * attritubes if editing has been disabled.
- */
- if(gl->editor == GL_NO_EDITOR)
- return 0;
-/*
- * Modify the existing attributes.
- */
- newattr = gl->oldattr;
-/*
- * Turn off local echo, canonical input mode and extended input processing.
- */
- newattr.c_lflag &= ~(ECHO | ICANON | IEXTEN);
-/*
- * Don't translate carriage return to newline, turn off input parity
- * checking, don't strip off 8th bit, turn off output flow control.
- */
- newattr.c_iflag &= ~(ICRNL | INPCK | ISTRIP);
-/*
- * Clear size bits, turn off parity checking, and allow 8-bit characters.
- */
- newattr.c_cflag &= ~(CSIZE | PARENB);
- newattr.c_cflag |= CS8;
-/*
- * Turn off output processing.
- */
- newattr.c_oflag &= ~(OPOST);
-/*
- * Request one byte at a time, without waiting.
- */
- newattr.c_cc[VMIN] = 1;
- newattr.c_cc[VTIME] = 0;
-/*
- * Install the new terminal modes.
- */
- while(tcsetattr(gl->input_fd, TCSADRAIN, &newattr)) {
- if (errno != EINTR) {
- fprintf(stderr, "getline(): tcsetattr error: %s\n", strerror(errno));
- return 1;
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Restore the terminal attributes recorded in gl->oldattr.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_restore_terminal_attributes(GetLine *gl)
-{
- int waserr = 0;
-/*
- * Before changing the terminal attributes, make sure that all output
- * has been passed to the terminal.
- */
- if(gl_flush_output(gl))
- waserr = 1;
-/*
- * Reset the terminal attributes to the values that they had on
- * entry to gl_get_line().
- */
- while(tcsetattr(gl->input_fd, TCSADRAIN, &gl->oldattr)) {
- if(errno != EINTR) {
- fprintf(stderr, "gl_get_line(): tcsetattr error: %s\n", strerror(errno));
- waserr = 1;
- break;
- };
- };
- return waserr;
-}
-
-/*.......................................................................
- * Read a new input line from the user.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * start_line char * The initial contents of the input line, or NULL
- * if it should start out empty.
- * start_pos int If start_line isn't NULL, this specifies the
- * index of the character over which the cursor
- * should initially be positioned within the line.
- * If you just want it to follow the last character
- * of the line, send -1.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_get_input_line(GetLine *gl, const char *start_line, int start_pos)
-{
- char c; /* The character being read */
-/*
- * Reset the properties of the line.
- */
- gl->ntotal = 0;
- gl->buff_curpos = 0;
- gl->term_curpos = 0;
- gl->insert_curpos = 0;
- gl->number = -1;
- gl->endline = 0;
- gl->vi.command = 0;
- gl->vi.undo.line[0] = '\0';
- gl->vi.undo.ntotal = 0;
- gl->vi.undo.buff_curpos = 0;
- gl->vi.repeat.fn = 0;
- gl->last_signal = -1;
-/*
- * Reset the history search pointers.
- */
- if(_glh_cancel_search(gl->glh))
- return 1;
-/*
- * Draw the prompt at the start of the line.
- */
- if(gl_display_prompt(gl))
- return 1;
-/*
- * Present an initial line?
- */
- if(start_line) {
- char *cptr; /* A pointer into gl->line[] */
-/*
- * Load the line into the buffer, and display it.
- */
- if(start_line != gl->line)
- strncpy(gl->line, start_line, gl->linelen);
- gl->line[gl->linelen] = '\0';
- gl->ntotal = strlen(gl->line);
-/*
- * Strip off any trailing newline and carriage return characters.
- */
- for(cptr=gl->line + gl->ntotal - 1; cptr >= gl->line &&
- (*cptr=='\n' || *cptr=='\r'); cptr--,gl->ntotal--)
- ;
- if(gl->ntotal < 0)
- gl->ntotal = 0;
- gl->line[gl->ntotal] = '\0';
-/*
- * Display the string that remains.
- */
- if(gl_output_string(gl, gl->line, '\0'))
- return 1;
-/*
- * Where should the cursor be placed within the line?
- */
- if(start_pos < 0 || start_pos > gl->ntotal) {
- if(gl_place_cursor(gl, gl->ntotal))
- return 1;
- } else {
- if(gl_place_cursor(gl, start_pos))
- return 1;
- };
- } else {
- gl->line[0] = '\0';
- };
-/*
- * Preload a history line?
- */
- if(gl->preload_history) {
- gl->preload_history = 0;
- if(gl->preload_id) {
- if(_glh_recall_line(gl->glh, gl->preload_id, gl->line, gl->linelen)) {
- gl->ntotal = strlen(gl->line);
- gl->buff_curpos = strlen(gl->line);
- };
- gl->preload_id = 0;
- };
- gl_redisplay(gl, 1);
- };
-/*
- * Read one character at a time.
- */
- while(gl_read_character(gl, &c) == 0) {
-/*
- * Increment the count of the number of key sequences entered.
- */
- gl->keyseq_count++;
-/*
- * Interpret the character either as the start of a new key-sequence,
- * as a continuation of a repeat count, or as a printable character
- * to be added to the line.
- */
- if(gl_interpret_char(gl, c))
- break;
-/*
- * If we just ran an action function which temporarily asked for
- * input to be taken from a file, abort this call.
- */
- if(gl->file_fp)
- return 0;
-/*
- * Has the line been completed?
- */
- if(gl->endline)
- return gl_line_ended(gl, isprint((int)(unsigned char) c) ? c : '\n',
- gl->echo && (c=='\n' || c=='\r'));
- };
-/*
- * To get here, gl_read_character() must have returned non-zero. See
- * if this was because a signal was caught that requested that the
- * current line be returned.
- */
- if(gl->endline)
- return gl_line_ended(gl, '\n', gl->echo);
- return 1;
-}
-
-/*.......................................................................
- * Add a character to the line buffer at the current cursor position,
- * inserting or overwriting according the current mode.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * c char The character to be added.
- * Output:
- * return int 0 - OK.
- * 1 - Insufficient room.
- */
-static int gl_add_char_to_line(GetLine *gl, char c)
-{
-/*
- * Keep a record of the current cursor position.
- */
- int buff_curpos = gl->buff_curpos;
- int term_curpos = gl->term_curpos;
-/*
- * Work out the displayed width of the new character.
- */
- int width = gl_displayed_char_width(gl, c, term_curpos);
-/*
- * If we are in insert mode, or at the end of the line,
- * check that we can accomodate a new character in the buffer.
- * If not, simply return, leaving it up to the calling program
- * to check for the absence of a newline character.
- */
- if((gl->insert || buff_curpos >= gl->ntotal) && gl->ntotal >= gl->linelen)
- return 0;
-/*
- * Are we adding characters to the line (ie. inserting or appending)?
- */
- if(gl->insert || buff_curpos >= gl->ntotal) {
-/*
- * If inserting, make room for the new character.
- */
- if(buff_curpos < gl->ntotal) {
- memmove(gl->line + buff_curpos + 1, gl->line + buff_curpos,
- gl->ntotal - buff_curpos);
- };
-/*
- * Copy the character into the buffer.
- */
- gl->line[buff_curpos] = c;
- gl->buff_curpos++;
-/*
- * If the line was extended, update the record of the string length
- * and terminate the extended string.
- */
- gl->ntotal++;
- gl->line[gl->ntotal] = '\0';
-/*
- * Redraw the line from the cursor position to the end of the line,
- * and move the cursor to just after the added character.
- */
- if(gl_output_string(gl, gl->line + buff_curpos, '\0') ||
- gl_set_term_curpos(gl, term_curpos + width))
- return 1;
-/*
- * Are we overwriting an existing character?
- */
- } else {
-/*
- * Get the widths of the character to be overwritten and the character
- * that is going to replace it.
- */
- int old_width = gl_displayed_char_width(gl, gl->line[buff_curpos],
- term_curpos);
-/*
- * Overwrite the character in the buffer.
- */
- gl->line[buff_curpos] = c;
-/*
- * If we are replacing with a narrower character, we need to
- * redraw the terminal string to the end of the line, then
- * overwrite the trailing old_width - width characters
- * with spaces.
- */
- if(old_width > width) {
- if(gl_output_string(gl, gl->line + buff_curpos, '\0'))
- return 1;
-/*
- * Clear to the end of the terminal.
- */
- if(gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
-/*
- * Move the cursor to the end of the new character.
- */
- if(gl_set_term_curpos(gl, term_curpos + width))
- return 1;
- gl->buff_curpos++;
-/*
- * If we are replacing with a wider character, then we will be
- * inserting new characters, and thus extending the line.
- */
- } else if(width > old_width) {
-/*
- * Redraw the line from the cursor position to the end of the line,
- * and move the cursor to just after the added character.
- */
- if(gl_output_string(gl, gl->line + buff_curpos, '\0') ||
- gl_set_term_curpos(gl, term_curpos + width))
- return 1;
- gl->buff_curpos++;
-/*
- * The original and replacement characters have the same width,
- * so simply overwrite.
- */
- } else {
-/*
- * Copy the character into the buffer.
- */
- gl->line[buff_curpos] = c;
- gl->buff_curpos++;
-/*
- * Overwrite the original character.
- */
- if(gl_output_char(gl, c, gl->line[gl->buff_curpos]))
- return 1;
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Insert/append a string to the line buffer and terminal at the current
- * cursor position.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * s char * The string to be added.
- * Output:
- * return int 0 - OK.
- * 1 - Insufficient room.
- */
-static int gl_add_string_to_line(GetLine *gl, const char *s)
-{
- int buff_slen; /* The length of the string being added to line[] */
- int term_slen; /* The length of the string being written to the terminal */
- int buff_curpos; /* The original value of gl->buff_curpos */
- int term_curpos; /* The original value of gl->term_curpos */
-/*
- * Keep a record of the current cursor position.
- */
- buff_curpos = gl->buff_curpos;
- term_curpos = gl->term_curpos;
-/*
- * How long is the string to be added?
- */
- buff_slen = strlen(s);
- term_slen = gl_displayed_string_width(gl, s, buff_slen, term_curpos);
-/*
- * Check that we can accomodate the string in the buffer.
- * If not, simply return, leaving it up to the calling program
- * to check for the absence of a newline character.
- */
- if(gl->ntotal + buff_slen > gl->linelen)
- return 0;
-/*
- * Move the characters that follow the cursor in the buffer by
- * buff_slen characters to the right.
- */
- if(gl->ntotal > gl->buff_curpos) {
- memmove(gl->line + gl->buff_curpos + buff_slen, gl->line + gl->buff_curpos,
- gl->ntotal - gl->buff_curpos);
- };
-/*
- * Copy the string into the buffer.
- */
- memcpy(gl->line + gl->buff_curpos, s, buff_slen);
- gl->ntotal += buff_slen;
- gl->buff_curpos += buff_slen;
-/*
- * Maintain the buffer properly terminated.
- */
- gl->line[gl->ntotal] = '\0';
-/*
- * Write the modified part of the line to the terminal, then move
- * the terminal cursor to the end of the displayed input string.
- */
- if(gl_output_string(gl, gl->line + buff_curpos, '\0') ||
- gl_set_term_curpos(gl, term_curpos + term_slen))
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * Read a single character from the terminal.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * Output:
- * return int 0 - OK.
- * 1 - Either an I/O error occurred, or a signal was
- * caught who's disposition is to abort gl_get_line()
- * or to have gl_get_line() return the current line
- * as though the user had pressed return. In the
- * latter case gl->endline will be non-zero.
- */
-static int gl_read_character(GetLine *gl, char *c)
-{
-/*
- * Before waiting for a new character to be input, flush unwritten
- * characters to the terminal.
- */
- if(gl_flush_output(gl))
- return 1;
-/*
- * We may have to repeat the read if window change signals are received.
- */
- for(;;) {
-/*
- * If the endline flag becomes set, don't wait for another character.
- */
- if(gl->endline)
- return 1;
-/*
- * Since the code in this function can block, trap signals.
- */
- if(sigsetjmp(gl_setjmp_buffer, 1)==0) {
-/*
- * Unblock the signals that we are trapping.
- */
- if(sigprocmask(SIG_UNBLOCK, &gl->new_signal_set, NULL) == -1) {
- fprintf(stderr, "getline(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
-/*
- * If select() is available, watch for activity on any file descriptors
- * that the user has registered, and for data available on the terminal
- * file descriptor.
- */
-#ifdef HAVE_SELECT
- if(gl_event_handler(gl))
- return 1;
-#endif
-/*
- * Read one character from the terminal. This could take more
- * than one call if an interrupt that we aren't trapping is
- * received.
- */
- while(read(gl->input_fd, (void *)c, 1) != 1) {
- if(errno != EINTR) {
-#ifdef EAGAIN
- if(!errno) /* This can happen with SysV O_NDELAY */
- errno = EAGAIN;
-#endif
- return 1;
- };
- };
-/*
- * Block all of the signals that we are trapping.
- */
- if(sigprocmask(SIG_BLOCK, &gl->new_signal_set, NULL) == -1) {
- fprintf(stderr, "getline(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
- return 0;
- };
-/*
- * To get here, one of the signals that we are trapping must have
- * been received. Note that by using sigsetjmp() instead of setjmp()
- * the signal mask that was blocking these signals will have been
- * reinstated, so we can be sure that no more of these signals will
- * be received until we explicitly unblock them again.
- */
- if(gl_check_caught_signal(gl))
- return 1;
- };
-}
-
-/*.......................................................................
- * This function is called to handle signals caught between calls to
- * sigsetjmp() and siglongjmp().
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * Output:
- * return int 0 - Signal handled internally.
- * 1 - Signal requires gl_get_line() to abort.
- */
-static int gl_check_caught_signal(GetLine *gl)
-{
- GlSignalNode *sig; /* The signal disposition */
- SigAction keep_action; /* The signal disposition of tecla signal handlers */
-/*
- * Was no signal caught?
- */
- if(gl_pending_signal == -1)
- return 0;
-/*
- * Record the signal that was caught, so that the user can query it later.
- */
- gl->last_signal = gl_pending_signal;
-/*
- * Did we receive a terminal size signal?
- */
-#ifdef USE_SIGWINCH
- if(gl_pending_signal == SIGWINCH && gl_resize_terminal(gl, 1))
- return 1;
-#endif
-/*
- * Lookup the requested disposition of this signal.
- */
- for(sig=gl->sigs; sig && sig->signo != gl_pending_signal; sig=sig->next)
- ;
- if(!sig)
- return 0;
-/*
- * Start a fresh line?
- */
- if(sig->flags & GLS_RESTORE_LINE) {
- if(gl_set_term_curpos(gl, gl_buff_curpos_to_term_curpos(gl, gl->ntotal)) ||
- gl_output_raw_string(gl, "\r\n"))
- return 1;
- };
-/*
- * Restore terminal settings to how they were before gl_get_line() was
- * called?
- */
- if(sig->flags & GLS_RESTORE_TTY)
- gl_restore_terminal_attributes(gl);
-/*
- * Restore signal handlers to how they were before gl_get_line() was
- * called? If this hasn't been requested, only reinstate the signal
- * handler of the signal that we are handling.
- */
- if(sig->flags & GLS_RESTORE_SIG) {
- gl_restore_signal_handlers(gl);
- } else {
- (void) sigaction(sig->signo, &sig->original, &keep_action);
- (void) sigprocmask(SIG_UNBLOCK, &sig->proc_mask, NULL);
- };
-/*
- * Forward the signal to the application's signal handler.
- */
- if(!(sig->flags & GLS_DONT_FORWARD))
- raise(gl_pending_signal);
- gl_pending_signal = -1;
-/*
- * Reinstate our signal handlers.
- */
- if(sig->flags & GLS_RESTORE_SIG) {
- gl_override_signal_handlers(gl);
- } else {
- (void) sigaction(sig->signo, &keep_action, NULL);
- (void) sigprocmask(SIG_BLOCK, &sig->proc_mask, NULL);
- };
-/*
- * Do we need to reinstate our terminal settings?
- */
- if(sig->flags & GLS_RESTORE_TTY)
- gl_raw_terminal_mode(gl);
-/*
- * Redraw the line?
- */
- if(sig->flags & GLS_REDRAW_LINE && gl_redisplay(gl, 1))
- return 1;
-/*
- * Set errno.
- */
- errno = sig->errno_value;
-/*
- * What next?
- */
- switch(sig->after) {
- case GLS_RETURN:
- return gl_newline(gl, 1);
- break;
- case GLS_ABORT:
- return 1;
- break;
- case GLS_CONTINUE:
- return 0;
- break;
- };
- return 0;
-}
-
-/*.......................................................................
- * Get pertinent terminal control strings and the initial terminal size.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * term char * The type of the terminal.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_control_strings(GetLine *gl, const char *term)
-{
- int bad_term = 0; /* True if term is unusable */
-/*
- * Discard any existing control strings from a previous terminal.
- */
- gl->left = NULL;
- gl->right = NULL;
- gl->up = NULL;
- gl->down = NULL;
- gl->home = NULL;
- gl->bol = 0;
- gl->clear_eol = NULL;
- gl->clear_eod = NULL;
- gl->u_arrow = NULL;
- gl->d_arrow = NULL;
- gl->l_arrow = NULL;
- gl->r_arrow = NULL;
- gl->sound_bell = NULL;
- gl->bold = NULL;
- gl->underline = NULL;
- gl->standout = NULL;
- gl->dim = NULL;
- gl->reverse = NULL;
- gl->blink = NULL;
- gl->text_attr_off = NULL;
- gl->nline = 0;
- gl->ncolumn = 0;
-#ifdef USE_TERMINFO
- gl->left_n = NULL;
- gl->right_n = NULL;
-#endif
-/*
- * If possible lookup the information in a terminal information
- * database.
- */
-#ifdef USE_TERMINFO
- if(!term || setupterm((char *)term, gl->input_fd, NULL) == ERR) {
- bad_term = 1;
- } else {
- _clr_StringGroup(gl->capmem);
- gl->left = gl_tigetstr(gl, "cub1");
- gl->right = gl_tigetstr(gl, "cuf1");
- gl->up = gl_tigetstr(gl, "cuu1");
- gl->down = gl_tigetstr(gl, "cud1");
- gl->home = gl_tigetstr(gl, "home");
- gl->clear_eol = gl_tigetstr(gl, "el");
- gl->clear_eod = gl_tigetstr(gl, "ed");
- gl->u_arrow = gl_tigetstr(gl, "kcuu1");
- gl->d_arrow = gl_tigetstr(gl, "kcud1");
- gl->l_arrow = gl_tigetstr(gl, "kcub1");
- gl->r_arrow = gl_tigetstr(gl, "kcuf1");
- gl->left_n = gl_tigetstr(gl, "cub");
- gl->right_n = gl_tigetstr(gl, "cuf");
- gl->sound_bell = gl_tigetstr(gl, "bel");
- gl->bold = gl_tigetstr(gl, "bold");
- gl->underline = gl_tigetstr(gl, "smul");
- gl->standout = gl_tigetstr(gl, "smso");
- gl->dim = gl_tigetstr(gl, "dim");
- gl->reverse = gl_tigetstr(gl, "rev");
- gl->blink = gl_tigetstr(gl, "blink");
- gl->text_attr_off = gl_tigetstr(gl, "sgr0");
- };
-#elif defined(USE_TERMCAP)
- if(!term || tgetent(gl->tgetent_buf, (char *)term) < 0) {
- bad_term = 1;
- } else {
- char *tgetstr_buf_ptr = gl->tgetstr_buf;
- _clr_StringGroup(gl->capmem);
- gl->left = gl_tgetstr(gl, "le", &tgetstr_buf_ptr);
- gl->right = gl_tgetstr(gl, "nd", &tgetstr_buf_ptr);
- gl->up = gl_tgetstr(gl, "up", &tgetstr_buf_ptr);
- gl->down = gl_tgetstr(gl, "do", &tgetstr_buf_ptr);
- gl->home = gl_tgetstr(gl, "ho", &tgetstr_buf_ptr);
- gl->clear_eol = gl_tgetstr(gl, "ce", &tgetstr_buf_ptr);
- gl->clear_eod = gl_tgetstr(gl, "cd", &tgetstr_buf_ptr);
- gl->u_arrow = gl_tgetstr(gl, "ku", &tgetstr_buf_ptr);
- gl->d_arrow = gl_tgetstr(gl, "kd", &tgetstr_buf_ptr);
- gl->l_arrow = gl_tgetstr(gl, "kl", &tgetstr_buf_ptr);
- gl->r_arrow = gl_tgetstr(gl, "kr", &tgetstr_buf_ptr);
- gl->sound_bell = gl_tgetstr(gl, "bl", &tgetstr_buf_ptr);
- gl->bold = gl_tgetstr(gl, "md", &tgetstr_buf_ptr);
- gl->underline = gl_tgetstr(gl, "us", &tgetstr_buf_ptr);
- gl->standout = gl_tgetstr(gl, "so", &tgetstr_buf_ptr);
- gl->dim = gl_tgetstr(gl, "mh", &tgetstr_buf_ptr);
- gl->reverse = gl_tgetstr(gl, "mr", &tgetstr_buf_ptr);
- gl->blink = gl_tgetstr(gl, "mb", &tgetstr_buf_ptr);
- gl->text_attr_off = gl_tgetstr(gl, "me", &tgetstr_buf_ptr);
- };
-#endif
-/*
- * Report term being unusable.
- */
- if(bad_term) {
- fprintf(stderr, "Bad terminal type: \"%s\". Will assume vt100.\n",
- term ? term : "(null)");
- };
-/*
- * Fill in missing information with ANSI VT100 strings.
- */
- if(!gl->left)
- gl->left = "\b"; /* ^H */
- if(!gl->right)
- gl->right = GL_ESC_STR "[C";
- if(!gl->up)
- gl->up = GL_ESC_STR "[A";
- if(!gl->down)
- gl->down = "\n";
- if(!gl->home)
- gl->home = GL_ESC_STR "[H";
- if(!gl->bol)
- gl->bol = "\r";
- if(!gl->clear_eol)
- gl->clear_eol = GL_ESC_STR "[K";
- if(!gl->clear_eod)
- gl->clear_eod = GL_ESC_STR "[J";
- if(!gl->u_arrow)
- gl->u_arrow = GL_ESC_STR "[A";
- if(!gl->d_arrow)
- gl->d_arrow = GL_ESC_STR "[B";
- if(!gl->l_arrow)
- gl->l_arrow = GL_ESC_STR "[D";
- if(!gl->r_arrow)
- gl->r_arrow = GL_ESC_STR "[C";
- if(!gl->sound_bell)
- gl->sound_bell = "\a";
- if(!gl->bold)
- gl->bold = GL_ESC_STR "[1m";
- if(!gl->underline)
- gl->underline = GL_ESC_STR "[4m";
- if(!gl->standout)
- gl->standout = GL_ESC_STR "[1;7m";
- if(!gl->dim)
- gl->dim = ""; /* Not available */
- if(!gl->reverse)
- gl->reverse = GL_ESC_STR "[7m";
- if(!gl->blink)
- gl->blink = GL_ESC_STR "[5m";
- if(!gl->text_attr_off)
- gl->text_attr_off = GL_ESC_STR "[m";
-/*
- * Find out the current terminal size.
- */
- (void) gl_terminal_size(gl, GL_DEF_NCOLUMN, GL_DEF_NLINE);
- return 0;
-}
-
-#ifdef USE_TERMINFO
-/*.......................................................................
- * This is a private function of gl_control_strings() used to look up
- * a termninal capability string from the terminfo database and make
- * a private copy of it.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * name const char * The name of the terminfo string to look up.
- * Output:
- * return const char * The local copy of the capability, or NULL
- * if not available.
- */
-static const char *gl_tigetstr(GetLine *gl, const char *name)
-{
- const char *value = tigetstr((char *)name);
- if(!value || value == (char *) -1)
- return NULL;
- return _sg_store_string(gl->capmem, value, 0);
-}
-#elif defined(USE_TERMCAP)
-/*.......................................................................
- * This is a private function of gl_control_strings() used to look up
- * a termninal capability string from the termcap database and make
- * a private copy of it. Note that some emulations of tgetstr(), such
- * as that used by Solaris, ignores the buffer pointer that is past to
- * it, so we can't assume that a private copy has been made that won't
- * be trashed by another call to gl_control_strings() by another
- * GetLine object. So we make what may be a redundant private copy
- * of the string in gl->capmem.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * name const char * The name of the terminfo string to look up.
- * Input/Output:
- * bufptr char ** On input *bufptr points to the location in
- * gl->tgetstr_buf at which to record the
- * capability string. On output *bufptr is
- * incremented over the stored string.
- * Output:
- * return const char * The local copy of the capability, or NULL
- * on error.
- */
-static const char *gl_tgetstr(GetLine *gl, const char *name, char **bufptr)
-{
- const char *value = tgetstr((char *)name, bufptr);
- if(!value || value == (char *) -1)
- return NULL;
- return _sg_store_string(gl->capmem, value, 0);
-}
-#endif
-
-/*.......................................................................
- * This is an action function that implements a user interrupt (eg. ^C).
- */
-static KT_KEY_FN(gl_user_interrupt)
-{
- raise(SIGINT);
- return 1;
-}
-
-/*.......................................................................
- * This is an action function that implements the abort signal.
- */
-static KT_KEY_FN(gl_abort)
-{
- raise(SIGABRT);
- return 1;
-}
-
-/*.......................................................................
- * This is an action function that sends a suspend signal (eg. ^Z) to the
- * the parent process.
- */
-static KT_KEY_FN(gl_suspend)
-{
- raise(SIGTSTP);
- return 0;
-}
-
-/*.......................................................................
- * This is an action function that halts output to the terminal.
- */
-static KT_KEY_FN(gl_stop_output)
-{
- tcflow(gl->output_fd, TCOOFF);
- return 0;
-}
-
-/*.......................................................................
- * This is an action function that resumes halted terminal output.
- */
-static KT_KEY_FN(gl_start_output)
-{
- tcflow(gl->output_fd, TCOON);
- return 0;
-}
-
-/*.......................................................................
- * This is an action function that allows the next character to be accepted
- * without any interpretation as a special character.
- */
-static KT_KEY_FN(gl_literal_next)
-{
- char c; /* The character to be added to the line */
- int i;
-/*
- * Get the character to be inserted literally.
- */
- if(gl_read_character(gl, &c))
- return 1;
-/*
- * Add the character to the line 'count' times.
- */
- for(i=0; incolumn) % TAB_WIDTH);
- if(IS_CTRL_CHAR(c))
- return 2;
- if(!isprint((int)(unsigned char) c)) {
- char string[TAB_WIDTH + 4];
- sprintf(string, "\\%o", (int)(unsigned char)c);
- return strlen(string);
- };
- return 1;
-}
-
-/*.......................................................................
- * Work out the length of given string of characters on the terminal.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * string char * The string to be measured.
- * nc int The number of characters to be measured, or -1
- * to measure the whole string.
- * term_curpos int The destination terminal location of the character.
- * This is needed because the width of tab characters
- * depends on where they are, relative to the
- * preceding tab stops.
- * Output:
- * return int The number of displayed characters.
- */
-static int gl_displayed_string_width(GetLine *gl, const char *string, int nc,
- int term_curpos)
-{
- int slen=0; /* The displayed number of characters */
- int i;
-/*
- * How many characters are to be measured?
- */
- if(nc < 0)
- nc = strlen(string);
-/*
- * Add up the length of the displayed string.
- */
- for(i=0; iecho) {
- int ndone = 0; /* The number of characters written so far */
-/*
- * How long is the string to be written?
- */
- int slen = strlen(string);
-/*
- * Attempt to write the string to the terminal, restarting the
- * write if a signal is caught.
- */
- while(ndone < slen) {
- int nnew = fwrite(string + ndone, sizeof(char), slen-ndone,
- gl->output_fp);
- if(nnew > 0)
- ndone += nnew;
- else if(errno != EINTR)
- return 1;
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Output a terminal control sequence. When using terminfo,
- * this must be a sequence returned by tgetstr() or tigetstr()
- * respectively.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * nline int The number of lines affected by the operation,
- * or 1 if not relevant.
- * string char * The control sequence to be sent.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_output_control_sequence(GetLine *gl, int nline,
- const char *string)
-{
- if(gl->echo) {
-#if defined(USE_TERMINFO) || defined(USE_TERMCAP)
- tputs_fp = gl->output_fp;
- errno = 0;
- tputs((char *)string, nline, gl_tputs_putchar);
- return errno != 0;
-#else
- return gl_output_raw_string(gl, string);
-#endif
- };
- return 0;
-}
-
-/*.......................................................................
- * Move the terminal cursor n characters to the left or right.
- *
- * Input:
- * gl GetLine * The resource object of this program.
- * n int number of positions to the right (> 0) or left (< 0).
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_terminal_move_cursor(GetLine *gl, int n)
-{
- int cur_row, cur_col; /* The current terminal row and column index of */
- /* the cursor wrt the start of the input line. */
- int new_row, new_col; /* The target terminal row and column index of */
- /* the cursor wrt the start of the input line. */
-/*
- * How far can we move left?
- */
- if(gl->term_curpos + n < 0)
- n = gl->term_curpos;
-/*
- * Break down the current and target cursor locations into rows and columns.
- */
- cur_row = gl->term_curpos / gl->ncolumn;
- cur_col = gl->term_curpos % gl->ncolumn;
- new_row = (gl->term_curpos + n) / gl->ncolumn;
- new_col = (gl->term_curpos + n) % gl->ncolumn;
-/*
- * Move down to the next line.
- */
- for(; cur_row < new_row; cur_row++) {
- if(gl_output_control_sequence(gl, 1, gl->down))
- return 1;
- };
-/*
- * Move up to the previous line.
- */
- for(; cur_row > new_row; cur_row--) {
- if(gl_output_control_sequence(gl, 1, gl->up))
- return 1;
- };
-/*
- * Move to the right within the target line?
- */
- if(cur_col < new_col) {
-#ifdef USE_TERMINFO
-/*
- * Use a parameterized control sequence if it generates less control
- * characters (guess based on ANSI terminal termcap entry).
- */
- if(gl->right_n != NULL && new_col - cur_col > 1) {
- if(gl_output_control_sequence(gl, 1, tparm((char *)gl->right_n,
- (long)(new_col - cur_col), 0l, 0l, 0l, 0l, 0l, 0l, 0l, 0l)))
- return 1;
- } else
-#endif
- {
- for(; cur_col < new_col; cur_col++) {
- if(gl_output_control_sequence(gl, 1, gl->right))
- return 1;
- };
- };
-/*
- * Move to the left within the target line?
- */
- } else if(cur_col > new_col) {
-#ifdef USE_TERMINFO
-/*
- * Use a parameterized control sequence if it generates less control
- * characters (guess based on ANSI terminal termcap entry).
- */
- if(gl->left_n != NULL && cur_col - new_col > 3) {
- if(gl_output_control_sequence(gl, 1, tparm((char *)gl->left_n,
- (long)(cur_col - new_col), 0l, 0l, 0l, 0l, 0l, 0l, 0l, 0l)))
- return 1;
- } else
-#endif
- {
- for(; cur_col > new_col; cur_col--) {
- if(gl_output_control_sequence(gl, 1, gl->left))
- return 1;
- };
- };
- }
-/*
- * Update the recorded position of the terminal cursor.
- */
- gl->term_curpos += n;
- return 0;
-}
-
-/*.......................................................................
- * Write a character to the terminal after expanding tabs and control
- * characters to their multi-character representations.
- *
- * Input:
- * gl GetLine * The resource object of this program.
- * c char The character to be output.
- * pad char Many terminals have the irritating feature that
- * when one writes a character in the last column of
- * of the terminal, the cursor isn't wrapped to the
- * start of the next line until one more character
- * is written. Some terminals don't do this, so
- * after such a write, we don't know where the
- * terminal is unless we output an extra character.
- * This argument specifies the character to write.
- * If at the end of the input line send '\0' or a
- * space, and a space will be written. Otherwise,
- * pass the next character in the input line
- * following the one being written.
- * Output:
- * return int 0 - OK.
- */
-static int gl_output_char(GetLine *gl, char c, char pad)
-{
- char string[TAB_WIDTH + 4]; /* A work area for composing compound strings */
- int nchar; /* The number of terminal characters */
- int i;
-/*
- * Check for special characters.
- */
- if(c == '\t') {
-/*
- * How many spaces do we need to represent a tab at the current terminal
- * column?
- */
- nchar = gl_displayed_char_width(gl, '\t', gl->term_curpos);
-/*
- * Compose the tab string.
- */
- for(i=0; iterm_curpos += nchar;
-/*
- * If the new character ended exactly at the end of a line,
- * most terminals won't move the cursor onto the next line until we
- * have written a character on the next line, so append an extra
- * space then move the cursor back.
- */
- if(gl->term_curpos % gl->ncolumn == 0) {
- int term_curpos = gl->term_curpos;
- if(gl_output_char(gl, pad ? pad : ' ', ' ') ||
- gl_set_term_curpos(gl, term_curpos))
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Write a string to the terminal after expanding tabs and control
- * characters to their multi-character representations.
- *
- * Input:
- * gl GetLine * The resource object of this program.
- * string char * The string to be output.
- * pad char Many terminals have the irritating feature that
- * when one writes a character in the last column of
- * of the terminal, the cursor isn't wrapped to the
- * start of the next line until one more character
- * is written. Some terminals don't do this, so
- * after such a write, we don't know where the
- * terminal is unless we output an extra character.
- * This argument specifies the character to write.
- * If at the end of the input line send '\0' or a
- * space, and a space will be written. Otherwise,
- * pass the next character in the input line
- * following the one being written.
- * Output:
- * return int 0 - OK.
- */
-static int gl_output_string(GetLine *gl, const char *string, char pad)
-{
- const char *cptr; /* A pointer into string[] */
- for(cptr=string; *cptr; cptr++) {
- char nextc = cptr[1];
- if(gl_output_char(gl, *cptr, nextc ? nextc : pad))
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Given a character position within gl->line[], work out the
- * corresponding gl->term_curpos position on the terminal.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * buff_curpos int The position within gl->line[].
- *
- * Output:
- * return int The gl->term_curpos position on the terminal.
- */
-static int gl_buff_curpos_to_term_curpos(GetLine *gl, int buff_curpos)
-{
- return gl->prompt_len + gl_displayed_string_width(gl, gl->line, buff_curpos,
- gl->prompt_len);
-}
-
-/*.......................................................................
- * Move the terminal cursor position.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * term_curpos int The destination terminal cursor position.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_set_term_curpos(GetLine *gl, int term_curpos)
-{
- return gl_terminal_move_cursor(gl, term_curpos - gl->term_curpos);
-}
-
-/*.......................................................................
- * This is an action function that moves the buffer cursor one character
- * left, and updates the terminal cursor to match.
- */
-static KT_KEY_FN(gl_cursor_left)
-{
- return gl_place_cursor(gl, gl->buff_curpos - count);
-}
-
-/*.......................................................................
- * This is an action function that moves the buffer cursor one character
- * right, and updates the terminal cursor to match.
- */
-static KT_KEY_FN(gl_cursor_right)
-{
- return gl_place_cursor(gl, gl->buff_curpos + count);
-}
-
-/*.......................................................................
- * This is an action function that toggles between overwrite and insert
- * mode.
- */
-static KT_KEY_FN(gl_insert_mode)
-{
- gl->insert = !gl->insert;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which moves the cursor to the beginning of
- * the line.
- */
-static KT_KEY_FN(gl_beginning_of_line)
-{
- return gl_place_cursor(gl, 0);
-}
-
-/*.......................................................................
- * This is an action function which moves the cursor to the end of
- * the line.
- */
-static KT_KEY_FN(gl_end_of_line)
-{
- return gl_place_cursor(gl, gl->ntotal);
-}
-
-/*.......................................................................
- * This is an action function which deletes the entire contents of the
- * current line.
- */
-static KT_KEY_FN(gl_delete_line)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Copy the contents of the line to the cut buffer.
- */
- strcpy(gl->cutbuf, gl->line);
-/*
- * Clear the buffer.
- */
- gl->ntotal = 0;
- gl->line[0] = '\0';
-/*
- * Move the terminal cursor to just after the prompt.
- */
- if(gl_place_cursor(gl, 0))
- return 1;
-/*
- * Clear from the end of the prompt to the end of the terminal.
- */
- if(gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which deletes all characters between the
- * current cursor position and the end of the line.
- */
-static KT_KEY_FN(gl_kill_line)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Copy the part of the line that is about to be deleted to the cut buffer.
- */
- strcpy(gl->cutbuf, gl->line + gl->buff_curpos);
-/*
- * Terminate the buffered line at the current cursor position.
- */
- gl->ntotal = gl->buff_curpos;
- gl->line[gl->ntotal] = '\0';
-/*
- * Clear the part of the line that follows the cursor.
- */
- if(gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
-/*
- * Explicitly reset the cursor position to allow vi command mode
- * constraints on its position to be set.
- */
- return gl_place_cursor(gl, gl->buff_curpos);
-}
-
-/*.......................................................................
- * This is an action function which deletes all characters between the
- * start of the line and the current cursor position.
- */
-static KT_KEY_FN(gl_backward_kill_line)
-{
-/*
- * How many characters are to be deleted from before the cursor?
- */
- int nc = gl->buff_curpos - gl->insert_curpos;
- if (!nc)
- return 0;
-/*
- * Move the cursor to the start of the line, or in vi input mode,
- * the start of the sub-line at which insertion started, and delete
- * up to the old cursor position.
- */
- return gl_place_cursor(gl, gl->insert_curpos) ||
- gl_delete_chars(gl, nc, gl->editor == GL_EMACS_MODE || gl->vi.command);
-}
-
-/*.......................................................................
- * This is an action function which moves the cursor forward by a word.
- */
-static KT_KEY_FN(gl_forward_word)
-{
- return gl_place_cursor(gl, gl_nth_word_end_forward(gl, count) +
- (gl->editor==GL_EMACS_MODE));
-}
-
-/*.......................................................................
- * This is an action function which moves the cursor forward to the start
- * of the next word.
- */
-static KT_KEY_FN(gl_forward_to_word)
-{
- return gl_place_cursor(gl, gl_nth_word_start_forward(gl, count));
-}
-
-/*.......................................................................
- * This is an action function which moves the cursor backward by a word.
- */
-static KT_KEY_FN(gl_backward_word)
-{
- return gl_place_cursor(gl, gl_nth_word_start_backward(gl, count));
-}
-
-/*.......................................................................
- * Delete one or more characters, starting with the one under the cursor.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * nc int The number of characters to delete.
- * cut int If true, copy the characters to the cut buffer.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_delete_chars(GetLine *gl, int nc, int cut)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * If there are fewer than nc characters following the cursor, limit
- * nc to the number available.
- */
- if(gl->buff_curpos + nc > gl->ntotal)
- nc = gl->ntotal - gl->buff_curpos;
-/*
- * Copy the about to be deleted region to the cut buffer.
- */
- if(cut) {
- memcpy(gl->cutbuf, gl->line + gl->buff_curpos, nc);
- gl->cutbuf[nc] = '\0';
- }
-/*
- * Nothing to delete?
- */
- if(nc <= 0)
- return 0;
-/*
- * In vi overwrite mode, restore any previously overwritten characters
- * from the undo buffer.
- */
- if(gl->editor == GL_VI_MODE && !gl->vi.command && !gl->insert) {
-/*
- * How many of the characters being deleted can be restored from the
- * undo buffer?
- */
- int nrestore = gl->buff_curpos + nc <= gl->vi.undo.ntotal ?
- nc : gl->vi.undo.ntotal - gl->buff_curpos;
-/*
- * Restore any available characters.
- */
- if(nrestore > 0)
- memcpy(gl->line + gl->buff_curpos, gl->vi.undo.line + gl->buff_curpos,
- nrestore);
-/*
- * If their were insufficient characters in the undo buffer, then this
- * implies that we are deleting from the end of the line, so we need
- * to terminate the line either where the undo buffer ran out, or if
- * we are deleting from beyond the end of the undo buffer, at the current
- * cursor position.
- */
- if(nc != nrestore) {
- gl->ntotal = gl->vi.undo.ntotal > gl->buff_curpos ? gl->vi.undo.ntotal :
- gl->buff_curpos;
- gl->line[gl->ntotal] = '\0';
- };
- } else {
-/*
- * Copy the remaining part of the line back over the deleted characters.
- */
- memmove(gl->line + gl->buff_curpos, gl->line + gl->buff_curpos + nc,
- gl->ntotal - gl->buff_curpos - nc + 1);
- gl->ntotal -= nc;
- };
-/*
- * Redraw the remaining characters following the cursor.
- */
- if(gl_output_string(gl, gl->line + gl->buff_curpos, '\0'))
- return 1;
-/*
- * Clear to the end of the terminal.
- */
- if(gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
-/*
- * Place the cursor at the start of where the deletion was performed.
- */
- return gl_place_cursor(gl, gl->buff_curpos);
-}
-
-/*.......................................................................
- * This is an action function which deletes character(s) under the
- * cursor without moving the cursor.
- */
-static KT_KEY_FN(gl_forward_delete_char)
-{
-/*
- * Delete 'count' characters.
- */
- return gl_delete_chars(gl, count, gl->vi.command);
-}
-
-/*.......................................................................
- * This is an action function which deletes character(s) under the
- * cursor and moves the cursor back one character.
- */
-static KT_KEY_FN(gl_backward_delete_char)
-{
-/*
- * Restrict the deletion count to the number of characters that
- * precede the insertion point.
- */
- if(count > gl->buff_curpos - gl->insert_curpos)
- count = gl->buff_curpos - gl->insert_curpos;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
- return gl_cursor_left(gl, count) ||
- gl_delete_chars(gl, count, gl->vi.command);
-}
-
-/*.......................................................................
- * Starting from the cursor position delete to the specified column.
- */
-static KT_KEY_FN(gl_delete_to_column)
-{
- if (--count >= gl->buff_curpos)
- return gl_forward_delete_char(gl, count - gl->buff_curpos);
- else
- return gl_backward_delete_char(gl, gl->buff_curpos - count);
-}
-
-/*.......................................................................
- * Starting from the cursor position delete characters to a matching
- * parenthesis.
- */
-static KT_KEY_FN(gl_delete_to_parenthesis)
-{
- int curpos = gl_index_of_matching_paren(gl);
- if(curpos >= 0) {
- gl_save_for_undo(gl);
- if(curpos >= gl->buff_curpos)
- return gl_forward_delete_char(gl, curpos - gl->buff_curpos + 1);
- else
- return gl_backward_delete_char(gl, ++gl->buff_curpos - curpos + 1);
- };
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which deletes from the cursor to the end
- * of the word that the cursor is either in or precedes.
- */
-static KT_KEY_FN(gl_forward_delete_word)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * In emacs mode delete to the end of the word. In vi mode delete to the
- * start of the net word.
- */
- if(gl->editor == GL_EMACS_MODE) {
- return gl_delete_chars(gl,
- gl_nth_word_end_forward(gl,count) - gl->buff_curpos + 1, 1);
- } else {
- return gl_delete_chars(gl,
- gl_nth_word_start_forward(gl,count) - gl->buff_curpos,
- gl->vi.command);
- };
-}
-
-/*.......................................................................
- * This is an action function which deletes the word that precedes the
- * cursor.
- */
-static KT_KEY_FN(gl_backward_delete_word)
-{
-/*
- * Keep a record of the current cursor position.
- */
- int buff_curpos = gl->buff_curpos;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Move back 'count' words.
- */
- if(gl_backward_word(gl, count))
- return 1;
-/*
- * Delete from the new cursor position to the original one.
- */
- return gl_delete_chars(gl, buff_curpos - gl->buff_curpos,
- gl->editor == GL_EMACS_MODE || gl->vi.command);
-}
-
-/*.......................................................................
- * Searching in a given direction, delete to the count'th
- * instance of a specified or queried character, in the input line.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * count int The number of times to search.
- * c char The character to be searched for, or '\0' if
- * the character should be read from the user.
- * forward int True if searching forward.
- * onto int True if the search should end on top of the
- * character, false if the search should stop
- * one character before the character in the
- * specified search direction.
- * change int If true, this function is being called upon
- * to do a vi change command, in which case the
- * user will be left in insert mode after the
- * deletion.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_delete_find(GetLine *gl, int count, char c, int forward,
- int onto, int change)
-{
-/*
- * Search for the character, and abort the deletion if not found.
- */
- int pos = gl_find_char(gl, count, forward, onto, c);
- if(pos < 0)
- return 0;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Allow the cursor to be at the end of the line if this is a change
- * command.
- */
- if(change)
- gl->vi.command = 0;
-/*
- * Delete the appropriate span of characters.
- */
- if(forward) {
- if(gl_delete_chars(gl, pos - gl->buff_curpos + 1, 1))
- return 1;
- } else {
- int buff_curpos = gl->buff_curpos;
- if(gl_place_cursor(gl, pos) ||
- gl_delete_chars(gl, buff_curpos - gl->buff_curpos, 1))
- return 1;
- };
-/*
- * If this is a change operation, switch the insert mode.
- */
- if(change && gl_vi_insert(gl, 0))
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which deletes forward from the cursor up to and
- * including a specified character.
- */
-static KT_KEY_FN(gl_forward_delete_find)
-{
- return gl_delete_find(gl, count, '\0', 1, 1, 0);
-}
-
-/*.......................................................................
- * This is an action function which deletes backward from the cursor back to
- * and including a specified character.
- */
-static KT_KEY_FN(gl_backward_delete_find)
-{
- return gl_delete_find(gl, count, '\0', 0, 1, 0);
-}
-
-/*.......................................................................
- * This is an action function which deletes forward from the cursor up to but
- * not including a specified character.
- */
-static KT_KEY_FN(gl_forward_delete_to)
-{
- return gl_delete_find(gl, count, '\0', 1, 0, 0);
-}
-
-/*.......................................................................
- * This is an action function which deletes backward from the cursor back to
- * but not including a specified character.
- */
-static KT_KEY_FN(gl_backward_delete_to)
-{
- return gl_delete_find(gl, count, '\0', 0, 0, 0);
-}
-
-/*.......................................................................
- * This is an action function which deletes to a character specified by a
- * previous search.
- */
-static KT_KEY_FN(gl_delete_refind)
-{
- return gl_delete_find(gl, count, gl->vi.find_char, gl->vi.find_forward,
- gl->vi.find_onto, 0);
-}
-
-/*.......................................................................
- * This is an action function which deletes to a character specified by a
- * previous search, but in the opposite direction.
- */
-static KT_KEY_FN(gl_delete_invert_refind)
-{
- return gl_delete_find(gl, count, gl->vi.find_char,
- !gl->vi.find_forward, gl->vi.find_onto, 0);
-}
-
-/*.......................................................................
- * This is an action function which converts the characters in the word
- * following the cursor to upper case.
- */
-static KT_KEY_FN(gl_upcase_word)
-{
-/*
- * Locate the count'th word ending after the cursor.
- */
- int last = gl_nth_word_end_forward(gl, count);
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Upcase characters from the current cursor position to 'last'.
- */
- while(gl->buff_curpos <= last) {
- char *cptr = gl->line + gl->buff_curpos++;
-/*
- * Convert the character to upper case?
- */
- if(islower((int)(unsigned char) *cptr))
- *cptr = toupper((int) *cptr);
-/*
- * Write the possibly modified character back. Note that for non-modified
- * characters we want to do this as well, so as to advance the cursor.
- */
- if(gl_output_char(gl, *cptr, cptr[1]))
- return 1;
- };
- return gl_place_cursor(gl, gl->buff_curpos); /* bounds check */
-}
-
-/*.......................................................................
- * This is an action function which converts the characters in the word
- * following the cursor to lower case.
- */
-static KT_KEY_FN(gl_downcase_word)
-{
-/*
- * Locate the count'th word ending after the cursor.
- */
- int last = gl_nth_word_end_forward(gl, count);
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Upcase characters from the current cursor position to 'last'.
- */
- while(gl->buff_curpos <= last) {
- char *cptr = gl->line + gl->buff_curpos++;
-/*
- * Convert the character to upper case?
- */
- if(isupper((int)(unsigned char) *cptr))
- *cptr = tolower((int) *cptr);
-/*
- * Write the possibly modified character back. Note that for non-modified
- * characters we want to do this as well, so as to advance the cursor.
- */
- if(gl_output_char(gl, *cptr, cptr[1]))
- return 1;
- };
- return gl_place_cursor(gl, gl->buff_curpos); /* bounds check */
-}
-
-/*.......................................................................
- * This is an action function which converts the first character of the
- * following word to upper case, in order to capitalize the word, and
- * leaves the cursor at the end of the word.
- */
-static KT_KEY_FN(gl_capitalize_word)
-{
- char *cptr; /* &gl->line[gl->buff_curpos] */
- int first; /* True for the first letter of the word */
- int i;
-/*
- * Keep a record of the current insert mode and the cursor position.
- */
- int insert = gl->insert;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * We want to overwrite the modified word.
- */
- gl->insert = 0;
-/*
- * Capitalize 'count' words.
- */
- for(i=0; ibuff_curpos < gl->ntotal; i++) {
- int pos = gl->buff_curpos;
-/*
- * If we are not already within a word, skip to the start of the word.
- */
- for(cptr = gl->line + pos ; posntotal && !gl_is_word_char((int) *cptr);
- pos++, cptr++)
- ;
-/*
- * Move the cursor to the new position.
- */
- if(gl_place_cursor(gl, pos))
- return 1;
-/*
- * While searching for the end of the word, change lower case letters
- * to upper case.
- */
- for(first=1; gl->buff_curposntotal && gl_is_word_char((int) *cptr);
- gl->buff_curpos++, cptr++) {
-/*
- * Convert the character to upper case?
- */
- if(first) {
- if(islower((int)(unsigned char) *cptr))
- *cptr = toupper((int) *cptr);
- } else {
- if(isupper((int)(unsigned char) *cptr))
- *cptr = tolower((int) *cptr);
- };
- first = 0;
-/*
- * Write the possibly modified character back. Note that for non-modified
- * characters we want to do this as well, so as to advance the cursor.
- */
- if(gl_output_char(gl, *cptr, cptr[1]))
- return 1;
- };
- };
-/*
- * Restore the insertion mode.
- */
- gl->insert = insert;
- return gl_place_cursor(gl, gl->buff_curpos); /* bounds check */
-}
-
-/*.......................................................................
- * This is an action function which redraws the current line.
- */
-static KT_KEY_FN(gl_redisplay)
-{
-/*
- * Keep a record of the current cursor position.
- */
- int buff_curpos = gl->buff_curpos;
-/*
- * Move the cursor to the start of the terminal line, and clear from there
- * to the end of the display.
- */
- if(gl_set_term_curpos(gl, 0) ||
- gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
-/*
- * Display the current prompt.
- */
- if(gl_display_prompt(gl))
- return 1;
-/*
- * Render the part of the line that the user has typed in so far.
- */
- if(gl_output_string(gl, gl->line, '\0'))
- return 1;
-/*
- * Restore the cursor position.
- */
- if(gl_place_cursor(gl, buff_curpos))
- return 1;
-/*
- * Flush the redisplayed line to the terminal.
- */
- return gl_flush_output(gl);
-}
-
-/*.......................................................................
- * This is an action function which clears the display and redraws the
- * input line from the home position.
- */
-static KT_KEY_FN(gl_clear_screen)
-{
-/*
- * Record the current cursor position.
- */
- int buff_curpos = gl->buff_curpos;
-/*
- * Home the cursor and clear from there to the end of the display.
- */
- if(gl_output_control_sequence(gl, gl->nline, gl->home) ||
- gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
-/*
- * Redisplay the line.
- */
- gl->term_curpos = 0;
- gl->buff_curpos = 0;
- if(gl_redisplay(gl,1))
- return 1;
-/*
- * Restore the cursor position.
- */
- return gl_place_cursor(gl, buff_curpos);
-}
-
-/*.......................................................................
- * This is an action function which swaps the character under the cursor
- * with the character to the left of the cursor.
- */
-static KT_KEY_FN(gl_transpose_chars)
-{
- char from[3]; /* The original string of 2 characters */
- char swap[3]; /* The swapped string of two characters */
-/*
- * If we are at the beginning or end of the line, there aren't two
- * characters to swap.
- */
- if(gl->buff_curpos < 1 || gl->buff_curpos >= gl->ntotal)
- return 0;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Get the original and swapped strings of the two characters.
- */
- from[0] = gl->line[gl->buff_curpos - 1];
- from[1] = gl->line[gl->buff_curpos];
- from[2] = '\0';
- swap[0] = gl->line[gl->buff_curpos];
- swap[1] = gl->line[gl->buff_curpos - 1];
- swap[2] = '\0';
-/*
- * Move the cursor to the start of the two characters.
- */
- if(gl_place_cursor(gl, gl->buff_curpos-1))
- return 1;
-/*
- * Swap the two characters in the buffer.
- */
- gl->line[gl->buff_curpos] = swap[0];
- gl->line[gl->buff_curpos+1] = swap[1];
-/*
- * If the sum of the displayed width of the two characters
- * in their current and final positions is the same, swapping can
- * be done by just overwriting with the two swapped characters.
- */
- if(gl_displayed_string_width(gl, from, -1, gl->term_curpos) ==
- gl_displayed_string_width(gl, swap, -1, gl->term_curpos)) {
- int insert = gl->insert;
- gl->insert = 0;
- if(gl_output_char(gl, swap[0], swap[1]) ||
- gl_output_char(gl, swap[1], gl->line[gl->buff_curpos+2]))
- return 1;
- gl->insert = insert;
-/*
- * If the swapped substring has a different displayed size, we need to
- * redraw everything after the first of the characters.
- */
- } else {
- if(gl_output_string(gl, gl->line + gl->buff_curpos, '\0') ||
- gl_output_control_sequence(gl, gl->nline, gl->clear_eod))
- return 1;
- };
-/*
- * Advance the cursor to the character after the swapped pair.
- */
- return gl_place_cursor(gl, gl->buff_curpos + 2);
-}
-
-/*.......................................................................
- * This is an action function which sets a mark at the current cursor
- * location.
- */
-static KT_KEY_FN(gl_set_mark)
-{
- gl->buff_mark = gl->buff_curpos;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which swaps the mark location for the
- * cursor location.
- */
-static KT_KEY_FN(gl_exchange_point_and_mark)
-{
-/*
- * Get the old mark position, and limit to the extent of the input
- * line.
- */
- int old_mark = gl->buff_mark <= gl->ntotal ? gl->buff_mark : gl->ntotal;
-/*
- * Make the current cursor position the new mark.
- */
- gl->buff_mark = gl->buff_curpos;
-/*
- * Move the cursor to the old mark position.
- */
- return gl_place_cursor(gl, old_mark);
-}
-
-/*.......................................................................
- * This is an action function which deletes the characters between the
- * mark and the cursor, recording them in gl->cutbuf for later pasting.
- */
-static KT_KEY_FN(gl_kill_region)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Limit the mark to be within the line.
- */
- if(gl->buff_mark > gl->ntotal)
- gl->buff_mark = gl->ntotal;
-/*
- * If there are no characters between the cursor and the mark, simply clear
- * the cut buffer.
- */
- if(gl->buff_mark == gl->buff_curpos) {
- gl->cutbuf[0] = '\0';
- return 0;
- };
-/*
- * If the mark is before the cursor, swap the cursor and the mark.
- */
- if(gl->buff_mark < gl->buff_curpos && gl_exchange_point_and_mark(gl,1))
- return 1;
-/*
- * Delete the characters.
- */
- if(gl_delete_chars(gl, gl->buff_mark - gl->buff_curpos, 1))
- return 1;
-/*
- * Make the mark the same as the cursor position.
- */
- gl->buff_mark = gl->buff_curpos;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which records the characters between the
- * mark and the cursor, in gl->cutbuf for later pasting.
- */
-static KT_KEY_FN(gl_copy_region_as_kill)
-{
- int ca, cb; /* The indexes of the first and last characters in the region */
- int mark; /* The position of the mark */
-/*
- * Get the position of the mark, limiting it to lie within the line.
- */
- mark = gl->buff_mark > gl->ntotal ? gl->ntotal : gl->buff_mark;
-/*
- * If there are no characters between the cursor and the mark, clear
- * the cut buffer.
- */
- if(mark == gl->buff_curpos) {
- gl->cutbuf[0] = '\0';
- return 0;
- };
-/*
- * Get the line indexes of the first and last characters in the region.
- */
- if(mark < gl->buff_curpos) {
- ca = mark;
- cb = gl->buff_curpos - 1;
- } else {
- ca = gl->buff_curpos;
- cb = mark - 1;
- };
-/*
- * Copy the region to the cut buffer.
- */
- memcpy(gl->cutbuf, gl->line + ca, cb + 1 - ca);
- gl->cutbuf[cb + 1 - ca] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which inserts the contents of the cut
- * buffer at the current cursor location.
- */
-static KT_KEY_FN(gl_yank)
-{
- int i;
-/*
- * Set the mark at the current location.
- */
- gl->buff_mark = gl->buff_curpos;
-/*
- * Do nothing else if the cut buffer is empty.
- */
- if(gl->cutbuf[0] == '\0')
- return gl_ring_bell(gl, 1);
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Insert the string count times.
- */
- for(i=0; icutbuf))
- return 1;
- };
-/*
- * gl_add_string_to_line() leaves the cursor after the last character that
- * was pasted, whereas vi leaves the cursor over the last character pasted.
- */
- if(gl->editor == GL_VI_MODE && gl_cursor_left(gl, 1))
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function which inserts the contents of the cut
- * buffer one character beyond the current cursor location.
- */
-static KT_KEY_FN(gl_append_yank)
-{
- int was_command = gl->vi.command;
- int i;
-/*
- * If the cut buffer is empty, ring the terminal bell.
- */
- if(gl->cutbuf[0] == '\0')
- return gl_ring_bell(gl, 1);
-/*
- * Set the mark at the current location + 1.
- */
- gl->buff_mark = gl->buff_curpos + 1;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Arrange to paste the text in insert mode after the current character.
- */
- if(gl_vi_append(gl, 0))
- return 1;
-/*
- * Insert the string count times.
- */
- for(i=0; icutbuf))
- return 1;
- };
-/*
- * Switch back to command mode if necessary.
- */
- if(was_command)
- gl_vi_command_mode(gl);
- return 0;
-}
-
-#ifdef USE_SIGWINCH
-/*.......................................................................
- * Respond to the receipt of a window change signal.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * redisplay int If true redisplay the current line after
- * getting the new window size.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_resize_terminal(GetLine *gl, int redisplay)
-{
- int lines_used; /* The number of lines currently in use */
- struct winsize size; /* The new size information */
- int i;
-/*
- * Record the fact that the sigwinch signal has been noted.
- */
- if(gl_pending_signal == SIGWINCH)
- gl_pending_signal = -1;
-/*
- * Query the new terminal window size. Ignore invalid responses.
- */
- if(ioctl(gl->output_fd, TIOCGWINSZ, &size) == 0 &&
- size.ws_row > 0 && size.ws_col > 0) {
-/*
- * Redisplay the input line?
- */
- if(redisplay) {
-/*
- * How many lines are currently displayed.
- */
- lines_used = (gl_displayed_string_width(gl,gl->line,-1,gl->prompt_len) +
- gl->prompt_len + gl->ncolumn - 1) / gl->ncolumn;
-/*
- * Move to the cursor to the start of the line.
- */
- for(i=1; iup))
- return 1;
- };
- if(gl_output_control_sequence(gl, 1, gl->bol))
- return 1;
-/*
- * Clear to the end of the terminal.
- */
- if(gl_output_control_sequence(gl, size.ws_row, gl->clear_eod))
- return 1;
-/*
- * Record the fact that the cursor is now at the beginning of the line.
- */
- gl->term_curpos = 0;
- };
-/*
- * Update the recorded window size.
- */
- gl->nline = size.ws_row;
- gl->ncolumn = size.ws_col;
- };
-/*
- * Redisplay the line?
- */
- return redisplay ? gl_redisplay(gl,1) : 0;
-}
-#endif
-
-/*.......................................................................
- * This is the action function that recalls the previous line in the
- * history buffer.
- */
-static KT_KEY_FN(gl_up_history)
-{
-/*
- * In vi mode, switch to command mode, since the user is very
- * likely to want to move around newly recalled lines.
- */
- gl_vi_command_mode(gl);
-/*
- * Forget any previous recall session.
- */
- gl->preload_id = 0;
-/*
- * We don't want a search prefix for this function.
- */
- if(_glh_search_prefix(gl->glh, gl->line, 0))
- return 1;
-/*
- * Recall the count'th next older line in the history list. If the first one
- * fails we can return since nothing has changed otherwise we must continue
- * and update the line state.
- */
- if(_glh_find_backwards(gl->glh, gl->line, gl->linelen) == NULL)
- return 0;
- while(--count && _glh_find_backwards(gl->glh, gl->line, gl->linelen))
- ;
-/*
- * Record the number of characters in the new string.
- */
- gl->ntotal = strlen(gl->line);
-/*
- * Arrange to have the cursor placed at the end of the new line.
- */
- gl->buff_curpos = strlen(gl->line);
-/*
- * Erase and display the new line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * This is the action function that recalls the next line in the
- * history buffer.
- */
-static KT_KEY_FN(gl_down_history)
-{
-/*
- * In vi mode, switch to command mode, since the user is very
- * likely to want to move around newly recalled lines.
- */
- gl_vi_command_mode(gl);
-/*
- * If no search is currently in progress continue a previous recall
- * session from a previous entered line if possible.
- */
- if(_glh_line_id(gl->glh, 0) == 0 && gl->preload_id) {
- _glh_recall_line(gl->glh, gl->preload_id, gl->line, gl->linelen);
- gl->preload_id = 0;
- } else {
-/*
- * We don't want a search prefix for this function.
- */
- if(_glh_search_prefix(gl->glh, gl->line, 0))
- return 1;
-/*
- * Recall the count'th next newer line in the history list. If the first one
- * fails we can return since nothing has changed otherwise we must continue
- * and update the line state.
- */
- if(_glh_find_forwards(gl->glh, gl->line, gl->linelen) == NULL)
- return 0;
- while(--count && _glh_find_forwards(gl->glh, gl->line, gl->linelen))
- ;
- };
-/*
- * Record the number of characters in the new string.
- */
- gl->ntotal = strlen(gl->line);
-/*
- * Arrange to have the cursor placed at the end of the new line.
- */
- gl->buff_curpos = strlen(gl->line);
-/*
- * Erase and display the new line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * This is the action function that recalls the previous line in the
- * history buffer whos prefix matches the characters that currently
- * precede the cursor. By setting count=-1, this can be used internally
- * to force searching for the prefix used in the last search.
- */
-static KT_KEY_FN(gl_history_search_backward)
-{
-/*
- * In vi mode, switch to command mode, since the user is very
- * likely to want to move around newly recalled lines.
- */
- gl_vi_command_mode(gl);
-/*
- * Forget any previous recall session.
- */
- gl->preload_id = 0;
-/*
- * If the previous thing that the user did wasn't to execute a history
- * search function, set the search prefix equal to the string that
- * precedes the cursor. In vi command mode include the character that
- * is under the cursor in the string. If count<0 force a repeat search
- * even if the last command wasn't a history command.
- */
- if(gl->last_search != gl->keyseq_count - 1 && count>=0 &&
- _glh_search_prefix(gl->glh, gl->line, gl->buff_curpos +
- (gl->editor==GL_VI_MODE && gl->ntotal>0)))
- return 1;
-/*
- * Record the key sequence number in which this search function is
- * being executed, so that the next call to this function or
- * gl_history_search_forward() knows if any other operations
- * were performed in between.
- */
- gl->last_search = gl->keyseq_count;
-/*
- * Search backwards for a match to the part of the line which precedes the
- * cursor.
- */
- if(_glh_find_backwards(gl->glh, gl->line, gl->linelen) == NULL)
- return 0;
-/*
- * Record the number of characters in the new string.
- */
- gl->ntotal = strlen(gl->line);
-/*
- * Arrange to have the cursor placed at the end of the new line.
- */
- gl->buff_curpos = strlen(gl->line);
-/*
- * Erase and display the new line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * This is the action function that recalls the previous line in the
- * history buffer who's prefix matches that specified in an earlier call
- * to gl_history_search_backward() or gl_history_search_forward().
- */
-static KT_KEY_FN(gl_history_re_search_backward)
-{
- return gl_history_search_backward(gl, -1);
-}
-
-/*.......................................................................
- * This is the action function that recalls the next line in the
- * history buffer who's prefix matches that specified in the earlier call
- * to gl_history_search_backward) which started the history search.
- * By setting count=-1, this can be used internally to force searching
- * for the prefix used in the last search.
- */
-static KT_KEY_FN(gl_history_search_forward)
-{
-/*
- * In vi mode, switch to command mode, since the user is very
- * likely to want to move around newly recalled lines.
- */
- gl_vi_command_mode(gl);
-/*
- * If the previous thing that the user did wasn't to execute a history
- * search function, set the search prefix equal to the string that
- * precedes the cursor. In vi command mode include the character that
- * is under the cursor in the string. If count<0 force a repeat search
- * even if the last command wasn't a history command.
- */
- if(gl->last_search != gl->keyseq_count - 1 && count>=0 &&
- _glh_search_prefix(gl->glh, gl->line, gl->buff_curpos +
- (gl->editor==GL_VI_MODE && gl->ntotal>0)))
- return 1;
-/*
- * Record the key sequence number in which this search function is
- * being executed, so that the next call to this function or
- * gl_history_search_backward() knows if any other operations
- * were performed in between.
- */
- gl->last_search = gl->keyseq_count;
-/*
- * Search forwards for the next matching line.
- */
- if(_glh_find_forwards(gl->glh, gl->line, gl->linelen) == NULL)
- return 0;
-/*
- * Record the number of characters in the new string.
- */
- gl->ntotal = strlen(gl->line);
-/*
- * Arrange for the cursor to be placed at the end of the new line.
- */
- gl->buff_curpos = strlen(gl->line);
-/*
- * Erase and display the new line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * This is the action function that recalls the next line in the
- * history buffer who's prefix matches that specified in an earlier call
- * to gl_history_search_backward() or gl_history_search_forward().
- */
-static KT_KEY_FN(gl_history_re_search_forward)
-{
- return gl_history_search_forward(gl, -1);
-}
-
-/*.......................................................................
- * This is the tab completion function that completes the filename that
- * precedes the cursor position.
- */
-static KT_KEY_FN(gl_complete_word)
-{
- CplMatches *matches; /* The possible completions */
- int redisplay=0; /* True if the whole line needs to be redrawn */
- int suffix_len; /* The length of the completion extension */
- int cont_len; /* The length of any continuation suffix */
- int nextra; /* The number of characters being added to the */
- /* total length of the line. */
- int buff_pos; /* The buffer index at which the completion is */
- /* to be inserted. */
-/*
- * In vi command mode, switch to append mode so that the character below
- * the character is included in the completion (otherwise people can't
- * complete at the end of the line).
- */
- if(gl->vi.command && gl_vi_append(gl, 0))
- return 1;
-/*
- * Get the cursor position at which the completion is to be inserted.
- */
- buff_pos = gl->buff_curpos;
-/*
- * Perform the completion.
- */
- matches = cpl_complete_word(gl->cpl, gl->line, gl->buff_curpos, gl->cpl_data,
- gl->cpl_fn);
- if(!matches) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\n%s\n", cpl_last_error(gl->cpl)) < 0)
- return 1;
- gl->term_curpos = 0;
- redisplay = 1;
-/*
- * Are there any completions?
- */
- } else if(matches->nmatch >= 1) {
-/*
- * If there any ambiguous matches, report them, starting on a new line.
- */
- if(matches->nmatch > 1 && gl->echo) {
- if(fprintf(gl->output_fp, "\r\n") < 0)
- return 1;
- cpl_list_completions(matches, gl->output_fp, gl->ncolumn);
- redisplay = 1;
- };
-/*
- * If the callback called gl_change_prompt(), we will need to redisplay
- * the whole line.
- */
- if(gl->prompt_changed)
- redisplay = 1;
-/*
- * Get the length of the suffix and any continuation suffix to add to it.
- */
- suffix_len = strlen(matches->suffix);
- cont_len = strlen(matches->cont_suffix);
-/*
- * If there is an unambiguous match, and the continuation suffix ends in
- * a newline, strip that newline and arrange to have getline return
- * after this action function returns.
- */
- if(matches->nmatch==1 && cont_len > 0 &&
- matches->cont_suffix[cont_len - 1] == '\n') {
- cont_len--;
- if(gl_newline(gl, 1))
- return 1;
- };
-/*
- * Work out the number of characters that are to be added.
- */
- nextra = suffix_len + cont_len;
-/*
- * Is there anything to be added?
- */
- if(nextra) {
-/*
- * Will there be space for the expansion in the line buffer?
- */
- if(gl->ntotal + nextra < gl->linelen) {
-/*
- * Make room to insert the filename extension.
- */
- memmove(gl->line + gl->buff_curpos + nextra, gl->line + gl->buff_curpos,
- gl->ntotal - gl->buff_curpos);
-/*
- * Insert the filename extension.
- */
- memcpy(gl->line + gl->buff_curpos, matches->suffix, suffix_len);
-/*
- * Add the terminating characters.
- */
- memcpy(gl->line + gl->buff_curpos + suffix_len, matches->cont_suffix,
- cont_len);
-/*
- * Record the increased length of the line.
- */
- gl->ntotal += nextra;
-/*
- * Place the cursor position at the end of the completion.
- */
- gl->buff_curpos += nextra;
-/*
- * Terminate the extended line.
- */
- gl->line[gl->ntotal] = '\0';
-/*
- * If we don't have to redisplay the whole line, redisplay the part
- * of the line which follows the original cursor position, and place
- * the cursor at the end of the completion.
- */
- if(!redisplay) {
- if(gl_output_control_sequence(gl, gl->nline, gl->clear_eod) ||
- gl_output_string(gl, gl->line + buff_pos, '\0') ||
- gl_place_cursor(gl, gl->buff_curpos))
- return 1;
- };
- } else {
- fprintf(stderr,
- "\r\nInsufficient room in line for file completion.\r\n");
- redisplay = 1;
- };
- };
- };
-/*
- * Redisplay the whole line?
- */
- if(redisplay) {
- gl->term_curpos = 0;
- if(gl_redisplay(gl,1))
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * This is the function that expands the filename that precedes the
- * cursor position. It expands ~user/ expressions, $envvar expressions,
- * and wildcards.
- */
-static KT_KEY_FN(gl_expand_filename)
-{
- char *start_path; /* The pointer to the start of the pathname in */
- /* gl->line[]. */
- FileExpansion *result; /* The results of the filename expansion */
- int pathlen; /* The length of the pathname being expanded */
- int redisplay=0; /* True if the whole line needs to be redrawn */
- int length; /* The number of characters needed to display the */
- /* expanded files. */
- int nextra; /* The number of characters to be added */
- int i,j;
-/*
- * In vi command mode, switch to append mode so that the character below
- * the character is included in the completion (otherwise people can't
- * complete at the end of the line).
- */
- if(gl->vi.command && gl_vi_append(gl, 0))
- return 1;
-/*
- * Locate the start of the filename that precedes the cursor position.
- */
- start_path = _pu_start_of_path(gl->line,
- gl->buff_curpos > 0 ? gl->buff_curpos : 0);
- if(!start_path)
- return 1;
-/*
- * Get the length of the string that is to be expanded.
- */
- pathlen = gl->buff_curpos - (start_path - gl->line);
-/*
- * Attempt to expand it.
- */
- result = ef_expand_file(gl->ef, start_path, pathlen);
-/*
- * If there was an error, report the error on a new line, then redraw
- * the original line.
- */
- if(!result) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\n%s\n", ef_last_error(gl->ef)) < 0)
- return 1;
- gl->term_curpos = 0;
- return gl_redisplay(gl,1);
- };
-/*
- * If no files matched, report this as well.
- */
- if(result->nfile == 0 || !result->exists) {
- if(gl->echo && fprintf(gl->output_fp, "\r\nNo files match.\n") < 0)
- return 1;
- gl->term_curpos = 0;
- return gl_redisplay(gl,1);
- };
-/*
- * If in vi command mode, preserve the current line for potential use by
- * vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Work out how much space we will need to display all of the matching
- * filenames, taking account of the space that we need to place between
- * them, and the number of additional '\' characters needed to escape
- * spaces, tabs and backslash characters in the individual filenames.
- */
- length = 0;
- for(i=0; infile; i++) {
- char *file = result->files[i];
- while(*file) {
- int c = *file++;
- switch(c) {
- case ' ': case '\t': case '\\': case '*': case '?': case '[':
- length++; /* Count extra backslash characters */
- };
- length++; /* Count the character itself */
- };
- length++; /* Count the space that follows each filename */
- };
-/*
- * Work out the number of characters that are to be added.
- */
- nextra = length - pathlen;
-/*
- * Will there be space for the expansion in the line buffer?
- */
- if(gl->ntotal + nextra >= gl->linelen) {
- fprintf(stderr, "\r\nInsufficient room in line for file expansion.\r\n");
- redisplay = 1;
- } else {
-/*
- * Do we need to move the part of the line that followed the unexpanded
- * filename?
- */
- if(nextra != 0) {
- memmove(gl->line + gl->buff_curpos + nextra, gl->line + gl->buff_curpos,
- gl->ntotal - gl->buff_curpos);
- };
-/*
- * Insert the filenames, separated by spaces, and with internal spaces,
- * tabs and backslashes escaped with backslashes.
- */
- for(i=0,j=start_path - gl->line; infile; i++) {
- char *file = result->files[i];
- while(*file) {
- int c = *file++;
- switch(c) {
- case ' ': case '\t': case '\\': case '*': case '?': case '[':
- gl->line[j++] = '\\';
- };
- gl->line[j++] = c;
- };
- gl->line[j++] = ' ';
- };
-/*
- * Record the increased length of the line.
- */
- gl->ntotal += nextra;
-/*
- * Place the cursor position at the end of the expansion.
- */
- gl->buff_curpos += nextra;
-/*
- * Terminate the extended line.
- */
- gl->line[gl->ntotal] = '\0';
- };
-/*
- * Display the whole line on a new line?
- */
- if(redisplay) {
- gl->term_curpos = 0;
- return gl_redisplay(gl,1);
- };
-/*
- * Otherwise redisplay the part of the line which follows the start of
- * the original filename.
- */
- if(gl_set_term_curpos(gl, gl_buff_curpos_to_term_curpos(gl, start_path - gl->line)) ||
- gl_output_control_sequence(gl, gl->nline, gl->clear_eod) ||
- gl_output_string(gl, start_path, gl->line[gl->buff_curpos]))
- return 1;
-/*
- * Restore the cursor position to the end of the expansion.
- */
- return gl_place_cursor(gl, gl->buff_curpos);
-}
-
-/*.......................................................................
- * This is the action function that lists glob expansions of the
- * filename that precedes the cursor position. It expands ~user/
- * expressions, $envvar expressions, and wildcards.
- */
-static KT_KEY_FN(gl_list_glob)
-{
- char *start_path; /* The pointer to the start of the pathname in */
- /* gl->line[]. */
- FileExpansion *result; /* The results of the filename expansion */
- int pathlen; /* The length of the pathname being expanded */
-/*
- * Locate the start of the filename that precedes the cursor position.
- */
- start_path = _pu_start_of_path(gl->line,
- gl->buff_curpos > 0 ? gl->buff_curpos : 0);
- if(!start_path)
- return 1;
-/*
- * Get the length of the string that is to be expanded.
- */
- pathlen = gl->buff_curpos - (start_path - gl->line);
-/*
- * Attempt to expand it.
- */
- result = ef_expand_file(gl->ef, start_path, pathlen);
-/*
- * If there was an error, report the error.
- */
- if(!result) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\n%s\n", ef_last_error(gl->ef)) < 0)
- return 1;
-/*
- * If no files matched, report this as well.
- */
- } else if(result->nfile == 0 || !result->exists) {
- if(gl->echo && fprintf(gl->output_fp, "\r\nNo files match.\n") < 0)
- return 1;
-/*
- * List the matching expansions.
- */
- } else if(gl->echo) {
- if(fprintf(gl->output_fp, "\r\n") < 0)
- return 1;
- ef_list_expansions(result, gl->output_fp, gl->ncolumn);
- };
-/*
- * Redisplay the line being edited.
- */
- gl->term_curpos = 0;
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * Return non-zero if a character should be considered a part of a word.
- *
- * Input:
- * c int The character to be tested.
- * Output:
- * return int True if the character should be considered part of a word.
- */
-static int gl_is_word_char(int c)
-{
- return isalnum((int)(unsigned char)c) || strchr(GL_WORD_CHARS, c) != NULL;
-}
-
-/*.......................................................................
- * Override the builtin file-completion callback that is bound to the
- * "complete_word" action function.
- *
- * Input:
- * gl GetLine * The resource object of the command-line input
- * module.
- * data void * This is passed to match_fn() whenever it is
- * called. It could, for example, point to a
- * symbol table where match_fn() could look
- * for possible completions.
- * match_fn CplMatchFn * The function that will identify the prefix
- * to be completed from the input line, and
- * report matching symbols.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_customize_completion(GetLine *gl, void *data, CplMatchFn *match_fn)
-{
-/*
- * Check the arguments.
- */
- if(!gl || !match_fn) {
- fprintf(stderr, "gl_customize_completion: NULL argument(s).\n");
- return 1;
- };
-/*
- * Record the new completion function and its callback data.
- */
- gl->cpl_fn = match_fn;
- gl->cpl_data = data;
- return 0;
-}
-
-/*.......................................................................
- * Change the terminal (or stream) that getline interacts with.
- *
- * Input:
- * gl GetLine * The resource object of the command-line input
- * module.
- * input_fp FILE * The stdio stream to read from.
- * output_fp FILE * The stdio stream to write to.
- * term char * The terminal type. This can be NULL if
- * either or both of input_fp and output_fp don't
- * refer to a terminal. Otherwise it should refer
- * to an entry in the terminal information database.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_change_terminal(GetLine *gl, FILE *input_fp, FILE *output_fp,
- const char *term)
-{
- int is_term = 0; /* True if both input_fd and output_fd are associated */
- /* with a terminal. */
-/*
- * Require that input_fp and output_fp both be valid.
- */
- if(!input_fp || !output_fp) {
- fprintf(stderr, "\r\ngl_change_terminal: Bad input/output stream(s).\n");
- return 1;
- };
-/*
- * If we are displacing a previous terminal, remove it from the list
- * of fds being watched.
- */
-#ifdef HAVE_SELECT
- if(gl->input_fd >= 0)
- FD_CLR(gl->input_fd, &gl->rfds);
-#endif
-/*
- * Record the file descriptors and streams.
- */
- gl->input_fp = input_fp;
- gl->input_fd = fileno(input_fp);
- gl->output_fp = output_fp;
- gl->output_fd = fileno(output_fp);
-/*
- * Make sure that the file descriptor will be visible in the set to
- * be watched.
- */
-#ifdef HAVE_SELECT
- FD_SET(gl->input_fd, &gl->rfds);
- if(gl->input_fd > gl->max_fd)
- gl->max_fd = gl->input_fd;
-#endif
-/*
- * Disable terminal interaction until we have enough info to interact
- * with the terminal.
- */
- gl->is_term = 0;
-/*
- * For terminal editing, we need both output_fd and input_fd to refer to
- * a terminal. While we can't verify that they both point to the same
- * terminal, we can verify that they point to terminals.
- */
- is_term = isatty(gl->input_fd) && isatty(gl->output_fd);
-/*
- * If we are interacting with a terminal and no terminal type has been
- * specified, treat it as a generic ANSI terminal.
- */
- if(is_term && !term)
- term = "ansi";
-/*
- * Make a copy of the terminal type string.
- */
- if(term != gl->term) {
-/*
- * Delete any old terminal type string.
- */
- if(gl->term) {
- free(gl->term);
- gl->term = NULL;
- };
-/*
- * Make a copy of the new terminal-type string, if any.
- */
- if(term) {
- gl->term = (char *) malloc(strlen(term)+1);
- if(gl->term)
- strcpy(gl->term, term);
- };
- };
-/*
- * Clear any terminal-specific key bindings that were taken from the
- * settings of the last terminal.
- */
- _kt_clear_bindings(gl->bindings, KTB_TERM);
-/*
- * If we have a terminal install new bindings for it.
- */
- if(is_term) {
-/*
- * Get the current settings of the terminal.
- */
- if(tcgetattr(gl->input_fd, &gl->oldattr)) {
- fprintf(stderr, "\r\ngl_change_terminal: tcgetattr error: %s\n",
- strerror(errno));
- return 1;
- };
-/*
- * Lookup the terminal control string and size information.
- */
- if(gl_control_strings(gl, term))
- return 1;
-/*
- * We now have enough info to interact with the terminal.
- */
- gl->is_term = 1;
-/*
- * Bind terminal-specific keys.
- */
- if(gl_bind_terminal_keys(gl))
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Set up terminal-specific key bindings.
- *
- * Input:
- * gl GetLine * The resource object of the command-line input
- * module.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_bind_terminal_keys(GetLine *gl)
-{
-/*
- * Install key-bindings for the special terminal characters.
- */
- if(gl_bind_control_char(gl, KTB_TERM, gl->oldattr.c_cc[VINTR],
- "user-interrupt") ||
- gl_bind_control_char(gl, KTB_TERM, gl->oldattr.c_cc[VQUIT], "abort") ||
- gl_bind_control_char(gl, KTB_TERM, gl->oldattr.c_cc[VSUSP], "suspend"))
- return 1;
-/*
- * In vi-mode, arrange for the above characters to be seen in command
- * mode.
- */
- if(gl->editor == GL_VI_MODE) {
- if(gl_bind_control_char(gl, KTB_TERM, MAKE_META(gl->oldattr.c_cc[VINTR]),
- "user-interrupt") ||
- gl_bind_control_char(gl, KTB_TERM, MAKE_META(gl->oldattr.c_cc[VQUIT]),
- "abort") ||
- gl_bind_control_char(gl, KTB_TERM, MAKE_META(gl->oldattr.c_cc[VSUSP]),
- "suspend"))
- return 1;
- };
-/*
- * Non-universal special keys.
- */
-#ifdef VLNEXT
- if(gl_bind_control_char(gl, KTB_TERM, gl->oldattr.c_cc[VLNEXT],
- "literal-next"))
- return 1;
-#else
- if(_kt_set_keybinding(gl->bindings, KTB_TERM, "^V", "literal-next"))
- return 1;
-#endif
-/*
- * Bind action functions to the terminal-specific arrow keys
- * looked up by gl_control_strings().
- */
- if(_gl_bind_arrow_keys(gl))
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * This function is normally bound to control-D. When it is invoked within
- * a line it deletes the character which follows the cursor. When invoked
- * at the end of the line it lists possible file completions, and when
- * invoked on an empty line it causes gl_get_line() to return EOF. This
- * function emulates the one that is normally bound to control-D by tcsh.
- */
-static KT_KEY_FN(gl_del_char_or_list_or_eof)
-{
-/*
- * If we have an empty line arrange to return EOF.
- */
- if(gl->ntotal < 1) {
- return 1;
-/*
- * If we are at the end of the line list possible completions.
- */
- } else if(gl->buff_curpos >= gl->ntotal) {
-/*
- * Get the list of possible completions.
- */
- CplMatches *matches = cpl_complete_word(gl->cpl, gl->line, gl->buff_curpos,
- gl->cpl_data, gl->cpl_fn);
- if(!matches) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\n%s\n", cpl_last_error(gl->cpl)) < 0)
- return 1;
- gl->term_curpos = 0;
-/*
- * List the matches.
- */
- } else if(matches->nmatch > 0 && gl->echo) {
- if(fprintf(gl->output_fp, "\r\n") < 0)
- return 1;
- cpl_list_completions(matches, gl->output_fp, gl->ncolumn);
- };
-/*
- * Redisplay the line unchanged.
- */
- return gl_redisplay(gl,1);
-/*
- * Within the line delete the character that follows the cursor.
- */
- } else {
-/*
- * If in vi command mode, first preserve the current line for potential use
- * by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Delete 'count' characters.
- */
- return gl_forward_delete_char(gl, count);
- };
-}
-
-/*.......................................................................
- * This function is normally bound to control-D in vi mode. When it is
- * invoked within a line it lists possible file completions, and when
- * invoked on an empty line it causes gl_get_line() to return EOF. This
- * function emulates the one that is normally bound to control-D by tcsh.
- */
-static KT_KEY_FN(gl_list_or_eof)
-{
-/*
- * If we have an empty line arrange to return EOF.
- */
- if(gl->ntotal < 1) {
- return 1;
-/*
- * Otherwise list possible completions.
- */
- } else {
-/*
- * Get the list of possible completions.
- */
- CplMatches *matches = cpl_complete_word(gl->cpl, gl->line, gl->buff_curpos,
- gl->cpl_data, gl->cpl_fn);
- if(!matches) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\n%s\n", cpl_last_error(gl->cpl)) < 0)
- return 1;
- gl->term_curpos = 0;
-/*
- * List the matches.
- */
- } else if(matches->nmatch > 0 && gl->echo) {
- if(fprintf(gl->output_fp, "\r\n") < 0)
- return 1;
- cpl_list_completions(matches, gl->output_fp, gl->ncolumn);
- };
-/*
- * Redisplay the line unchanged.
- */
- return gl_redisplay(gl,1);
- };
-}
-
-/*.......................................................................
- * Where the user has used the symbolic arrow-key names to specify
- * arrow key bindings, bind the specified action functions to the default
- * and terminal specific arrow key sequences.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int _gl_bind_arrow_keys(GetLine *gl)
-{
-/*
- * Process each of the arrow keys.
- */
- if(_gl_rebind_arrow_key(gl->bindings, "up", gl->u_arrow, "^[[A", "^[OA") ||
- _gl_rebind_arrow_key(gl->bindings, "down", gl->d_arrow, "^[[B", "^[OB") ||
- _gl_rebind_arrow_key(gl->bindings, "left", gl->l_arrow, "^[[D", "^[OD") ||
- _gl_rebind_arrow_key(gl->bindings, "right", gl->r_arrow, "^[[C", "^[OC"))
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * Lookup the action function of a symbolic arrow-key binding, and bind
- * it to the terminal-specific and default arrow-key sequences. Note that
- * we don't trust the terminal-specified key sequences to be correct.
- * The main reason for this is that on some machines the xterm terminfo
- * entry is for hardware X-terminals, rather than xterm terminal emulators
- * and the two terminal types emit different character sequences when the
- * their cursor keys are pressed. As a result we also supply a couple
- * of default key sequences.
- *
- * Input:
- * bindings KeyTab * The table of key bindings.
- * name char * The symbolic name of the arrow key.
- * term_seq char * The terminal-specific arrow-key sequence.
- * def_seq1 char * The first default arrow-key sequence.
- * def_seq2 char * The second arrow-key sequence.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int _gl_rebind_arrow_key(KeyTab *bindings, const char *name,
- const char *term_seq, const char *def_seq1,
- const char *def_seq2)
-{
- int first,last; /* The indexes of the first and last matching entries */
-/*
- * Lookup the key binding for the symbolic name of the arrow key. This
- * will either be the default action, or a user provided one.
- */
- if(_kt_lookup_keybinding(bindings, name, strlen(name), &first, &last)
- == KT_EXACT_MATCH) {
-/*
- * Get the action function.
- */
- KtKeyFn *key_fn = bindings->table[first].keyfn;
-/*
- * Bind this to each of the specified key sequences.
- */
- if((term_seq && _kt_set_keyfn(bindings, KTB_TERM, term_seq, key_fn)) ||
- (def_seq1 && _kt_set_keyfn(bindings, KTB_NORM, def_seq1, key_fn)) ||
- (def_seq2 && _kt_set_keyfn(bindings, KTB_NORM, def_seq2, key_fn)))
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Read getline configuration information from a given file.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * filename const char * The name of the file to read configuration
- * information from. The contents of this file
- * are as described in the gl_get_line(3) man
- * page for the default ~/.teclarc configuration
- * file.
- * who KtBinder Who bindings are to be installed for.
- * Output:
- * return int 0 - OK.
- * 1 - Irrecoverable error.
- */
-static int _gl_read_config_file(GetLine *gl, const char *filename, KtBinder who)
-{
- FileExpansion *expansion; /* The expansion of the filename */
- FILE *fp; /* The opened file */
- int waserr = 0; /* True if an error occurred while reading */
- int lineno = 1; /* The line number being processed */
-/*
- * Check the arguments.
- */
- if(!gl || !filename) {
- fprintf(stderr, "_gl_read_config_file: Invalid arguments.\n");
- return 1;
- };
-/*
- * Expand the filename.
- */
- expansion = ef_expand_file(gl->ef, filename, -1);
- if(!expansion) {
- fprintf(stderr, "Unable to expand %s (%s).\n", filename,
- ef_last_error(gl->ef));
- return 1;
- };
-/*
- * Attempt to open the file.
- */
- fp = fopen(expansion->files[0], "r");
-/*
- * It isn't an error for there to be no configuration file.
- */
- if(!fp)
- return 0;
-/*
- * Parse the contents of the file.
- */
- while(!waserr && !feof(fp))
- waserr = _gl_parse_config_line(gl, fp, glc_file_getc, filename, who,
- &lineno);
-/*
- * Bind action functions to the terminal-specific arrow keys.
- */
- if(_gl_bind_arrow_keys(gl))
- return 1;
-/*
- * Clean up.
- */
- (void) fclose(fp);
- return waserr;
-}
-
-/*.......................................................................
- * Read GetLine configuration information from a string. The contents of
- * the string are the same as those described in the gl_get_line(3)
- * man page for the contents of the ~/.teclarc configuration file.
- */
-static int _gl_read_config_string(GetLine *gl, const char *buffer, KtBinder who)
-{
- const char *bptr; /* A pointer into buffer[] */
- int waserr = 0; /* True if an error occurred while reading */
- int lineno = 1; /* The line number being processed */
-/*
- * Check the arguments.
- */
- if(!gl || !buffer) {
- fprintf(stderr, "_gl_read_config_string: Invalid arguments.\n");
- return 1;
- };
-/*
- * Get a pointer to the start of the buffer.
- */
- bptr = buffer;
-/*
- * Parse the contents of the buffer.
- */
- while(!waserr && *bptr)
- waserr = _gl_parse_config_line(gl, &bptr, glc_buff_getc, "", who, &lineno);
-/*
- * Bind action functions to the terminal-specific arrow keys.
- */
- if(_gl_bind_arrow_keys(gl))
- return 1;
- return waserr;
-}
-
-/*.......................................................................
- * Parse the next line of a getline configuration file.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * stream void * The pointer representing the stream to be read
- * by getc_fn().
- * getc_fn GlcGetcFn * A callback function which when called with
- * 'stream' as its argument, returns the next
- * unread character from the stream.
- * origin const char * The name of the entity being read (eg. a
- * file name).
- * who KtBinder Who bindings are to be installed for.
- * Input/Output:
- * lineno int * The line number being processed is to be
- * maintained in *lineno.
- * Output:
- * return int 0 - OK.
- * 1 - Irrecoverable error.
- */
-static int _gl_parse_config_line(GetLine *gl, void *stream, GlcGetcFn *getc_fn,
- const char *origin, KtBinder who, int *lineno)
-{
- char buffer[GL_CONF_BUFLEN+1]; /* The input line buffer */
- char *argv[GL_CONF_MAXARG]; /* The argument list */
- int argc = 0; /* The number of arguments in argv[] */
- int c; /* A character from the file */
- int escaped = 0; /* True if the next character is escaped */
- int i;
-/*
- * Skip spaces and tabs.
- */
- do c = getc_fn(stream); while(c==' ' || c=='\t');
-/*
- * Comments extend to the end of the line.
- */
- if(c=='#')
- do c = getc_fn(stream); while(c != '\n' && c != EOF);
-/*
- * Ignore empty lines.
- */
- if(c=='\n' || c==EOF) {
- (*lineno)++;
- return 0;
- };
-/*
- * Record the buffer location of the start of the first argument.
- */
- argv[argc] = buffer;
-/*
- * Read the rest of the line, stopping early if a comment is seen, or
- * the buffer overflows, and replacing sequences of spaces with a
- * '\0', and recording the thus terminated string as an argument.
- */
- i = 0;
- while(i= GL_CONF_MAXARG) {
- fprintf(stderr, "%s:%d: Too many arguments.\n", origin, *lineno);
- do c = getc_fn(stream); while(c != '\n' && c != EOF); /* Skip past eol */
- return 0;
- };
- argv[argc] = buffer + i;
-/*
- * The next character was preceded by spaces, so it isn't escaped.
- */
- escaped = 0;
- } else {
-/*
- * If we hit an unescaped backslash, this means that we should arrange
- * to treat the next character like a simple alphabetical character.
- */
- if(c=='\\' && !escaped) {
- escaped = 1;
-/*
- * Splice lines where the newline is escaped.
- */
- } else if(c=='\n' && escaped) {
- (*lineno)++;
-/*
- * Record a normal character, preserving any preceding backslash.
- */
- } else {
- if(escaped)
- buffer[i++] = '\\';
- if(i>=GL_CONF_BUFLEN)
- break;
- escaped = 0;
- buffer[i++] = c;
- };
-/*
- * Get the next character.
- */
- c = getc_fn(stream);
- };
- };
-/*
- * Did the buffer overflow?
- */
- if(i>=GL_CONF_BUFLEN) {
- fprintf(stderr, "%s:%d: Line too long.\n", origin, *lineno);
- return 0;
- };
-/*
- * The first argument should be a command name.
- */
- if(strcmp(argv[0], "bind") == 0) {
- const char *action = NULL; /* A NULL action removes a keybinding */
- const char *keyseq = NULL;
- switch(argc) {
- case 3:
- action = argv[2];
- case 2: /* Note the intentional fallthrough */
- keyseq = argv[1];
-/*
- * Attempt to record the new keybinding.
- */
- if(_kt_set_keybinding(gl->bindings, who, keyseq, action)) {
- fprintf(stderr, "The error occurred at line %d of %s.\n", *lineno,
- origin);
- };
- break;
- default:
- fprintf(stderr, "%s:%d: Wrong number of arguments.\n", origin, *lineno);
- };
- } else if(strcmp(argv[0], "edit-mode") == 0) {
- if(argc == 2 && strcmp(argv[1], "emacs") == 0) {
- gl_change_editor(gl, GL_EMACS_MODE);
- } else if(argc == 2 && strcmp(argv[1], "vi") == 0) {
- gl_change_editor(gl, GL_VI_MODE);
- } else if(argc == 2 && strcmp(argv[1], "none") == 0) {
- gl_change_editor(gl, GL_NO_EDITOR);
- } else {
- fprintf(stderr, "%s:%d: The argument of editor should be vi or emacs.\n",
- origin, *lineno);
- };
- } else if(strcmp(argv[0], "nobeep") == 0) {
- gl->silence_bell = 1;
- } else {
- fprintf(stderr, "%s:%d: Unknown command name '%s'.\n", origin, *lineno,
- argv[0]);
- };
-/*
- * Skip any trailing comment.
- */
- while(c != '\n' && c != EOF)
- c = getc_fn(stream);
- (*lineno)++;
- return 0;
-}
-
-/*.......................................................................
- * This is the _gl_parse_config_line() callback function which reads the
- * next character from a configuration file.
- */
-static GLC_GETC_FN(glc_file_getc)
-{
- return fgetc((FILE *) stream);
-}
-
-/*.......................................................................
- * This is the _gl_parse_config_line() callback function which reads the
- * next character from a buffer. Its stream argument is a pointer to a
- * variable which is, in turn, a pointer into the buffer being read from.
- */
-static GLC_GETC_FN(glc_buff_getc)
-{
- const char **lptr = (char const **) stream;
- return **lptr ? *(*lptr)++ : EOF;
-}
-
-/*.......................................................................
- * When this action is triggered, it arranges to temporarily read command
- * lines from the regular file whos name precedes the cursor.
- * The current line is first discarded.
- */
-static KT_KEY_FN(gl_read_from_file)
-{
- char *start_path; /* The pointer to the start of the pathname in */
- /* gl->line[]. */
- FileExpansion *result; /* The results of the filename expansion */
- int pathlen; /* The length of the pathname being expanded */
- int error_reported = 0; /* True after an error has been reported */
-/*
- * Locate the start of the filename that precedes the cursor position.
- */
- start_path = _pu_start_of_path(gl->line,
- gl->buff_curpos > 0 ? gl->buff_curpos : 0);
- if(!start_path)
- return 1;
-/*
- * Get the length of the pathname string.
- */
- pathlen = gl->buff_curpos - (start_path - gl->line);
-/*
- * Attempt to expand the pathname.
- */
- result = ef_expand_file(gl->ef, start_path, pathlen);
-/*
- * If there was an error, report the error on a new line, then redraw
- * the original line.
- */
- if(!result) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\n%s\n", ef_last_error(gl->ef)) < 0)
- return 1;
- error_reported = 1;
-/*
- * If no files matched, report this as well.
- */
- } else if(result->nfile == 0 || !result->exists) {
- if(gl->echo && fprintf(gl->output_fp, "\r\nNo files match.\n") < 0)
- return 1;
- error_reported = 1;
-/*
- * Complain if more than one file matches.
- */
- } else if(result->nfile > 1) {
- if(gl->echo &&
- fprintf(gl->output_fp, "\r\nMore than one file matches.\n") < 0)
- return 1;
- error_reported = 1;
-/*
- * Disallow input from anything but normal files. In principle we could
- * also support input from named pipes. Terminal files would be a problem
- * since we wouldn't know the terminal type, and other types of files
- * might cause the library to lock up.
- */
- } else if(!_pu_path_is_file(result->files[0])) {
- if(gl->echo && fprintf(gl->output_fp, "\r\nNot a normal file.\n") < 0)
- return 1;
- error_reported = 1;
- } else {
-/*
- * Attempt to open and install the specified file for reading.
- */
- gl->file_fp = fopen(result->files[0], "r");
- if(!gl->file_fp) {
- if(gl->echo && fprintf(gl->output_fp, "\r\nUnable to open: %s\n",
- result->files[0]) < 0)
- return 1;
- error_reported = 1;
- };
-/*
- * Inform the user what is happening.
- */
- if(gl->echo && fprintf(gl->output_fp, "\r\n\n",
- result->files[0]) < 0)
- return 1;
- };
-/*
- * If an error was reported, redisplay the current line.
- */
- if(error_reported) {
- gl->term_curpos = 0;
- return gl_redisplay(gl,1);
- };
- return 0;
-}
-
-/*.......................................................................
- * Close any temporary file that is being used for input.
- *
- * Input:
- * gl GetLine * The getline resource object.
- */
-static void gl_revert_input(GetLine *gl)
-{
- if(gl->file_fp)
- fclose(gl->file_fp);
- gl->file_fp = NULL;
-}
-
-/*.......................................................................
- * This is the action function that recalls the oldest line in the
- * history buffer.
- */
-static KT_KEY_FN(gl_beginning_of_history)
-{
-/*
- * In vi mode, switch to command mode, since the user is very
- * likely to want to move around newly recalled lines.
- */
- gl_vi_command_mode(gl);
-/*
- * Forget any previous recall session.
- */
- gl->preload_id = 0;
-/*
- * Recall the next oldest line in the history list.
- */
- if(_glh_oldest_line(gl->glh, gl->line, gl->linelen) == NULL)
- return 0;
-/*
- * Record the number of characters in the new string.
- */
- gl->ntotal = strlen(gl->line);
-/*
- * Arrange to have the cursor placed at the end of the new line.
- */
- gl->buff_curpos = strlen(gl->line);
-/*
- * Erase and display the new line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * If a history session is currently in progress, this action function
- * recalls the line that was being edited when the session started. If
- * no history session is in progress, it does nothing.
- */
-static KT_KEY_FN(gl_end_of_history)
-{
-/*
- * In vi mode, switch to command mode, since the user is very
- * likely to want to move around newly recalled lines.
- */
- gl_vi_command_mode(gl);
-/*
- * Forget any previous recall session.
- */
- gl->preload_id = 0;
-/*
- * Recall the next oldest line in the history list.
- */
- if(_glh_current_line(gl->glh, gl->line, gl->linelen) == NULL)
- return 0;
-/*
- * Record the number of characters in the new string.
- */
- gl->ntotal = strlen(gl->line);
-/*
- * Arrange to have the cursor placed at the end of the new line.
- */
- gl->buff_curpos = strlen(gl->line);
-/*
- * Erase and display the new line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * This action function is treated specially, in that its count argument
- * is set to the end keystroke of the keysequence that activated it.
- * It accumulates a numeric argument, adding one digit on each call in
- * which the last keystroke was a numeric digit.
- */
-static KT_KEY_FN(gl_digit_argument)
-{
-/*
- * Was the last keystroke a digit?
- */
- int is_digit = isdigit((int)(unsigned char) count);
-/*
- * In vi command mode, a lone '0' means goto-start-of-line.
- */
- if(gl->vi.command && gl->number < 0 && count == '0')
- return gl_beginning_of_line(gl, count);
-/*
- * Are we starting to accumulate a new number?
- */
- if(gl->number < 0 || !is_digit)
- gl->number = 0;
-/*
- * Was the last keystroke a digit?
- */
- if(is_digit) {
-/*
- * Read the numeric value of the digit, without assuming ASCII.
- */
- int n;
- char s[2]; s[0] = count; s[1] = '\0';
- n = atoi(s);
-/*
- * Append the new digit.
- */
- gl->number = gl->number * 10 + n;
- };
- return 0;
-}
-
-/*.......................................................................
- * The newline action function sets gl->endline to tell
- * gl_get_input_line() that the line is now complete.
- */
-static KT_KEY_FN(gl_newline)
-{
- GlhLineID id; /* The last history line recalled while entering this line */
-/*
- * Flag the line as ended.
- */
- gl->endline = 1;
-/*
- * Record the next position in the history buffer, for potential
- * recall by an action function on the next call to gl_get_line().
- */
- id = _glh_line_id(gl->glh, 1);
- if(id)
- gl->preload_id = id;
- return 0;
-}
-
-/*.......................................................................
- * The 'repeat' action function sets gl->endline to tell
- * gl_get_input_line() that the line is now complete, and records the
- * ID of the next history line in gl->preload_id so that the next call
- * to gl_get_input_line() will preload the line with that history line.
- */
-static KT_KEY_FN(gl_repeat_history)
-{
- gl->endline = 1;
- gl->preload_id = _glh_line_id(gl->glh, 1);
- gl->preload_history = 1;
- return 0;
-}
-
-/*.......................................................................
- * Flush unwritten characters to the terminal.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_flush_output(GetLine *gl)
-{
-/*
- * Attempt to flush output to the terminal, restarting the output
- * if a signal is caught.
- */
- while(fflush(gl->output_fp) != 0) {
- if(errno!=EINTR)
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Change the style of editing to emulate a given editor.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * editor GlEditor The type of editor to emulate.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_change_editor(GetLine *gl, GlEditor editor)
-{
-/*
- * Install the default key-bindings of the requested editor.
- */
- switch(editor) {
- case GL_EMACS_MODE:
- _kt_clear_bindings(gl->bindings, KTB_NORM);
- _kt_clear_bindings(gl->bindings, KTB_TERM);
- (void) _kt_add_bindings(gl->bindings, KTB_NORM, gl_emacs_bindings,
- sizeof(gl_emacs_bindings)/sizeof(gl_emacs_bindings[0]));
- break;
- case GL_VI_MODE:
- _kt_clear_bindings(gl->bindings, KTB_NORM);
- _kt_clear_bindings(gl->bindings, KTB_TERM);
- (void) _kt_add_bindings(gl->bindings, KTB_NORM, gl_vi_bindings,
- sizeof(gl_vi_bindings)/sizeof(gl_vi_bindings[0]));
- break;
- case GL_NO_EDITOR:
- break;
- default:
- fprintf(stderr, "gl_change_editor: Unknown editor.\n");
- return 1;
- };
-/*
- * Record the new editing mode.
- */
- gl->editor = editor;
- gl->vi.command = 0; /* Start in input mode */
- gl->insert_curpos = 0;
-/*
- * Reinstate terminal-specific bindings.
- */
- if(gl->editor != GL_NO_EDITOR && gl->input_fp)
- (void) gl_bind_terminal_keys(gl);
- return 0;
-}
-
-/*.......................................................................
- * This is an action function that switches to editing using emacs bindings
- */
-static KT_KEY_FN(gl_emacs_editing_mode)
-{
- return gl_change_editor(gl, GL_EMACS_MODE);
-}
-
-/*.......................................................................
- * This is an action function that switches to editing using vi bindings
- */
-static KT_KEY_FN(gl_vi_editing_mode)
-{
- return gl_change_editor(gl, GL_VI_MODE);
-}
-
-/*.......................................................................
- * This is the action function that switches to insert mode.
- */
-static KT_KEY_FN(gl_vi_insert)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Switch to vi insert mode.
- */
- gl->insert = 1;
- gl->vi.command = 0;
- gl->insert_curpos = gl->buff_curpos;
- return 0;
-}
-
-/*.......................................................................
- * This is an action function that switches to overwrite mode.
- */
-static KT_KEY_FN(gl_vi_overwrite)
-{
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Switch to vi overwrite mode.
- */
- gl->insert = 0;
- gl->vi.command = 0;
- gl->insert_curpos = gl->buff_curpos;
- return 0;
-}
-
-/*.......................................................................
- * This action function toggles the case of the character under the
- * cursor.
- */
-static KT_KEY_FN(gl_change_case)
-{
- int i;
-/*
- * Keep a record of the current insert mode and the cursor position.
- */
- int insert = gl->insert;
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * We want to overwrite the modified word.
- */
- gl->insert = 0;
-/*
- * Toggle the case of 'count' characters.
- */
- for(i=0; ibuff_curpos < gl->ntotal; i++) {
- char *cptr = gl->line + gl->buff_curpos++;
-/*
- * Convert the character to upper case?
- */
- if(islower((int)(unsigned char) *cptr))
- *cptr = toupper((int) *cptr);
- else if(isupper((int)(unsigned char) *cptr))
- *cptr = tolower((int) *cptr);
-/*
- * Write the possibly modified character back. Note that for non-modified
- * characters we want to do this as well, so as to advance the cursor.
- */
- if(gl_output_char(gl, *cptr, cptr[1]))
- return 1;
- };
-/*
- * Restore the insertion mode.
- */
- gl->insert = insert;
- return gl_place_cursor(gl, gl->buff_curpos); /* bounds check */
-}
-
-/*.......................................................................
- * This is the action function which implements the vi-style action which
- * moves the cursor to the start of the line, then switches to insert mode.
- */
-static KT_KEY_FN(gl_vi_insert_at_bol)
-{
- gl_save_for_undo(gl);
- return gl_beginning_of_line(gl, 0) ||
- gl_vi_insert(gl, 0);
-
-}
-
-/*.......................................................................
- * This is the action function which implements the vi-style action which
- * moves the cursor to the end of the line, then switches to insert mode
- * to allow text to be appended to the line.
- */
-static KT_KEY_FN(gl_vi_append_at_eol)
-{
- gl_save_for_undo(gl);
- gl->vi.command = 0; /* Allow cursor at EOL */
- return gl_end_of_line(gl, 0) ||
- gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * This is the action function which implements the vi-style action which
- * moves the cursor to right one then switches to insert mode, thus
- * allowing text to be appended after the next character.
- */
-static KT_KEY_FN(gl_vi_append)
-{
- gl_save_for_undo(gl);
- gl->vi.command = 0; /* Allow cursor at EOL */
- return gl_cursor_right(gl, 1) ||
- gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * This action function moves the cursor to the column specified by the
- * numeric argument. Column indexes start at 1.
- */
-static KT_KEY_FN(gl_goto_column)
-{
- return gl_place_cursor(gl, count - 1);
-}
-
-/*.......................................................................
- * Starting with the character under the cursor, replace 'count'
- * characters with the next character that the user types.
- */
-static KT_KEY_FN(gl_vi_replace_char)
-{
- char c; /* The replacement character */
- int i;
-/*
- * Keep a record of the current insert mode.
- */
- int insert = gl->insert;
-/*
- * Get the replacement character.
- */
- if(gl->vi.repeat.active) {
- c = gl->vi.repeat.input_char;
- } else {
- if(gl_read_character(gl, &c))
- return 1;
- gl->vi.repeat.input_char = c;
- };
-/*
- * Are there 'count' characters to be replaced?
- */
- if(gl->ntotal - gl->buff_curpos >= count) {
-/*
- * If in vi command mode, preserve the current line for potential
- * use by vi-undo.
- */
- gl_save_for_undo(gl);
-/*
- * Temporarily switch to overwrite mode.
- */
- gl->insert = 0;
-/*
- * Overwrite the current character plus count-1 subsequent characters
- * with the replacement character.
- */
- for(i=0; iinsert = insert;
- };
- return gl_place_cursor(gl, gl->buff_curpos); /* bounds check */
-}
-
-/*.......................................................................
- * This is an action function which changes all characters between the
- * current cursor position and the end of the line.
- */
-static KT_KEY_FN(gl_vi_change_rest_of_line)
-{
- gl_save_for_undo(gl);
- gl->vi.command = 0; /* Allow cursor at EOL */
- return gl_kill_line(gl, count) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * This is an action function which changes all characters between the
- * start of the line and the current cursor position.
- */
-static KT_KEY_FN(gl_vi_change_to_bol)
-{
- return gl_backward_kill_line(gl, count) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * This is an action function which deletes the entire contents of the
- * current line and switches to insert mode.
- */
-static KT_KEY_FN(gl_vi_change_line)
-{
- return gl_delete_line(gl, count) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * Starting from the cursor position and looking towards the end of the
- * line, copy 'count' characters to the cut buffer.
- */
-static KT_KEY_FN(gl_forward_copy_char)
-{
-/*
- * Limit the count to the number of characters available.
- */
- if(gl->buff_curpos + count >= gl->ntotal)
- count = gl->ntotal - gl->buff_curpos;
- if(count < 0)
- count = 0;
-/*
- * Copy the characters to the cut buffer.
- */
- memcpy(gl->cutbuf, gl->line + gl->buff_curpos, count);
- gl->cutbuf[count] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Starting from the character before the cursor position and looking
- * backwards towards the start of the line, copy 'count' characters to
- * the cut buffer.
- */
-static KT_KEY_FN(gl_backward_copy_char)
-{
-/*
- * Limit the count to the number of characters available.
- */
- if(count > gl->buff_curpos)
- count = gl->buff_curpos;
- if(count < 0)
- count = 0;
- gl_place_cursor(gl, gl->buff_curpos - count);
-/*
- * Copy the characters to the cut buffer.
- */
- memcpy(gl->cutbuf, gl->line + gl->buff_curpos, count);
- gl->cutbuf[count] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Starting from the cursor position copy to the specified column into the
- * cut buffer.
- */
-static KT_KEY_FN(gl_copy_to_column)
-{
- if (--count >= gl->buff_curpos)
- return gl_forward_copy_char(gl, count - gl->buff_curpos);
- else
- return gl_backward_copy_char(gl, gl->buff_curpos - count);
-}
-
-/*.......................................................................
- * Starting from the cursor position copy characters up to a matching
- * parenthesis into the cut buffer.
- */
-static KT_KEY_FN(gl_copy_to_parenthesis)
-{
- int curpos = gl_index_of_matching_paren(gl);
- if(curpos >= 0) {
- gl_save_for_undo(gl);
- if(curpos >= gl->buff_curpos)
- return gl_forward_copy_char(gl, curpos - gl->buff_curpos + 1);
- else
- return gl_backward_copy_char(gl, ++gl->buff_curpos - curpos + 1);
- };
- return 0;
-}
-
-/*.......................................................................
- * Starting from the cursor position copy the rest of the line into the
- * cut buffer.
- */
-static KT_KEY_FN(gl_copy_rest_of_line)
-{
-/*
- * Copy the characters to the cut buffer.
- */
- memcpy(gl->cutbuf, gl->line + gl->buff_curpos, gl->ntotal - gl->buff_curpos);
- gl->cutbuf[gl->ntotal - gl->buff_curpos] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Copy from the beginning of the line to the cursor position into the
- * cut buffer.
- */
-static KT_KEY_FN(gl_copy_to_bol)
-{
-/*
- * Copy the characters to the cut buffer.
- */
- memcpy(gl->cutbuf, gl->line, gl->buff_curpos);
- gl->cutbuf[gl->buff_curpos] = '\0';
- gl_place_cursor(gl, 0);
- return 0;
-}
-
-/*.......................................................................
- * Copy the entire line into the cut buffer.
- */
-static KT_KEY_FN(gl_copy_line)
-{
-/*
- * Copy the characters to the cut buffer.
- */
- memcpy(gl->cutbuf, gl->line, gl->ntotal);
- gl->cutbuf[gl->ntotal] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Search forwards for the next character that the user enters.
- */
-static KT_KEY_FN(gl_forward_find_char)
-{
- int pos = gl_find_char(gl, count, 1, 1, '\0');
- return pos >= 0 && gl_place_cursor(gl, pos);
-}
-
-/*.......................................................................
- * Search backwards for the next character that the user enters.
- */
-static KT_KEY_FN(gl_backward_find_char)
-{
- int pos = gl_find_char(gl, count, 0, 1, '\0');
- return pos >= 0 && gl_place_cursor(gl, pos);
-}
-
-/*.......................................................................
- * Search forwards for the next character that the user enters. Move up to,
- * but not onto, the found character.
- */
-static KT_KEY_FN(gl_forward_to_char)
-{
- int pos = gl_find_char(gl, count, 1, 0, '\0');
- return pos >= 0 && gl_place_cursor(gl, pos);
-}
-
-/*.......................................................................
- * Search backwards for the next character that the user enters. Move back to,
- * but not onto, the found character.
- */
-static KT_KEY_FN(gl_backward_to_char)
-{
- int pos = gl_find_char(gl, count, 0, 0, '\0');
- return pos >= 0 && gl_place_cursor(gl, pos);
-}
-
-/*.......................................................................
- * Searching in a given direction, return the index of a given (or
- * read) character in the input line, or the character that precedes
- * it in the specified search direction. Return -1 if not found.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * count int The number of times to search.
- * forward int True if searching forward.
- * onto int True if the search should end on top of the
- * character, false if the search should stop
- * one character before the character in the
- * specified search direction.
- * c char The character to be sought, or '\0' if the
- * character should be read from the user.
- * Output:
- * return int The index of the character in gl->line[], or
- * -1 if not found.
- */
-static int gl_find_char(GetLine *gl, int count, int forward, int onto, char c)
-{
- int pos; /* The index reached in searching the input line */
- int i;
-/*
- * Get a character from the user?
- */
- if(!c) {
-/*
- * If we are in the process of repeating a previous change command, substitute
- * the last find character.
- */
- if(gl->vi.repeat.active) {
- c = gl->vi.find_char;
- } else {
- if(gl_read_character(gl, &c))
- return -1;
-/*
- * Record the details of the new search, for use by repeat finds.
- */
- gl->vi.find_forward = forward;
- gl->vi.find_onto = onto;
- gl->vi.find_char = c;
- };
- };
-/*
- * Which direction should we search?
- */
- if(forward) {
-/*
- * Search forwards 'count' times for the character, starting with the
- * character that follows the cursor.
- */
- for(i=0, pos=gl->buff_curpos; intotal; i++) {
-/*
- * Advance past the last match (or past the current cursor position
- * on the first search).
- */
- pos++;
-/*
- * Search for the next instance of c.
- */
- for( ; posntotal && c!=gl->line[pos]; pos++)
- ;
- };
-/*
- * If the character was found and we have been requested to return the
- * position of the character that precedes the desired character, then
- * we have gone one character too far.
- */
- if(!onto && posntotal)
- pos--;
- } else {
-/*
- * Search backwards 'count' times for the character, starting with the
- * character that precedes the cursor.
- */
- for(i=0, pos=gl->buff_curpos; i= gl->insert_curpos; i++) {
-/*
- * Step back one from the last match (or from the current cursor
- * position on the first search).
- */
- pos--;
-/*
- * Search for the next instance of c.
- */
- for( ; pos>=gl->insert_curpos && c!=gl->line[pos]; pos--)
- ;
- };
-/*
- * If the character was found and we have been requested to return the
- * position of the character that precedes the desired character, then
- * we have gone one character too far.
- */
- if(!onto && pos>=gl->insert_curpos)
- pos++;
- };
-/*
- * If found, return the cursor position of the count'th match.
- * Otherwise ring the terminal bell.
- */
- if(pos >= gl->insert_curpos && pos < gl->ntotal) {
- return pos;
- } else {
- (void) gl_ring_bell(gl, 1);
- return -1;
- }
-}
-
-/*.......................................................................
- * Repeat the last character search in the same direction as the last
- * search.
- */
-static KT_KEY_FN(gl_repeat_find_char)
-{
- int pos = gl->vi.find_char ?
- gl_find_char(gl, count, gl->vi.find_forward, gl->vi.find_onto,
- gl->vi.find_char) : -1;
- return pos >= 0 && gl_place_cursor(gl, pos);
-}
-
-/*.......................................................................
- * Repeat the last character search in the opposite direction as the last
- * search.
- */
-static KT_KEY_FN(gl_invert_refind_char)
-{
- int pos = gl->vi.find_char ?
- gl_find_char(gl, count, !gl->vi.find_forward, gl->vi.find_onto,
- gl->vi.find_char) : -1;
- return pos >= 0 && gl_place_cursor(gl, pos);
-}
-
-/*.......................................................................
- * Search forward from the current position of the cursor for 'count'
- * word endings, returning the index of the last one found, or the end of
- * the line if there were less than 'count' words.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * n int The number of word boundaries to search for.
- * Output:
- * return int The buffer index of the located position.
- */
-static int gl_nth_word_end_forward(GetLine *gl, int n)
-{
- int bufpos; /* The buffer index being checked. */
- int i;
-/*
- * In order to guarantee forward motion to the next word ending,
- * we need to start from one position to the right of the cursor
- * position, since this may already be at the end of a word.
- */
- bufpos = gl->buff_curpos + 1;
-/*
- * If we are at the end of the line, return the index of the last
- * real character on the line. Note that this will be -1 if the line
- * is empty.
- */
- if(bufpos >= gl->ntotal)
- return gl->ntotal - 1;
-/*
- * Search 'n' times, unless the end of the input line is reached first.
- */
- for(i=0; intotal; i++) {
-/*
- * If we are not already within a word, skip to the start of the next word.
- */
- for( ; bufposntotal && !gl_is_word_char((int)gl->line[bufpos]);
- bufpos++)
- ;
-/*
- * Find the end of the next word.
- */
- for( ; bufposntotal && gl_is_word_char((int)gl->line[bufpos]);
- bufpos++)
- ;
- };
-/*
- * We will have overshot.
- */
- return bufpos > 0 ? bufpos-1 : bufpos;
-}
-
-/*.......................................................................
- * Search forward from the current position of the cursor for 'count'
- * word starts, returning the index of the last one found, or the end of
- * the line if there were less than 'count' words.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * n int The number of word boundaries to search for.
- * Output:
- * return int The buffer index of the located position.
- */
-static int gl_nth_word_start_forward(GetLine *gl, int n)
-{
- int bufpos; /* The buffer index being checked. */
- int i;
-/*
- * Get the current cursor position.
- */
- bufpos = gl->buff_curpos;
-/*
- * Search 'n' times, unless the end of the input line is reached first.
- */
- for(i=0; intotal; i++) {
-/*
- * Find the end of the current word.
- */
- for( ; bufposntotal && gl_is_word_char((int)gl->line[bufpos]);
- bufpos++)
- ;
-/*
- * Skip to the start of the next word.
- */
- for( ; bufposntotal && !gl_is_word_char((int)gl->line[bufpos]);
- bufpos++)
- ;
- };
- return bufpos;
-}
-
-/*.......................................................................
- * Search backward from the current position of the cursor for 'count'
- * word starts, returning the index of the last one found, or the start
- * of the line if there were less than 'count' words.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * n int The number of word boundaries to search for.
- * Output:
- * return int The buffer index of the located position.
- */
-static int gl_nth_word_start_backward(GetLine *gl, int n)
-{
- int bufpos; /* The buffer index being checked. */
- int i;
-/*
- * Get the current cursor position.
- */
- bufpos = gl->buff_curpos;
-/*
- * Search 'n' times, unless the beginning of the input line (or vi insertion
- * point) is reached first.
- */
- for(i=0; i gl->insert_curpos; i++) {
-/*
- * Starting one character back from the last search, so as not to keep
- * settling on the same word-start, search backwards until finding a
- * word character.
- */
- while(--bufpos >= gl->insert_curpos &&
- !gl_is_word_char((int)gl->line[bufpos]))
- ;
-/*
- * Find the start of the word.
- */
- while(--bufpos >= gl->insert_curpos &&
- gl_is_word_char((int)gl->line[bufpos]))
- ;
-/*
- * We will have gone one character too far.
- */
- bufpos++;
- };
- return bufpos >= gl->insert_curpos ? bufpos : gl->insert_curpos;
-}
-
-/*.......................................................................
- * Copy one or more words into the cut buffer without moving the cursor
- * or deleting text.
- */
-static KT_KEY_FN(gl_forward_copy_word)
-{
-/*
- * Find the location of the count'th start or end of a word
- * after the cursor, depending on whether in emacs or vi mode.
- */
- int next = gl->editor == GL_EMACS_MODE ?
- gl_nth_word_end_forward(gl, count) :
- gl_nth_word_start_forward(gl, count);
-/*
- * How many characters are to be copied into the cut buffer?
- */
- int n = next - gl->buff_curpos;
-/*
- * Copy the specified segment and terminate the string.
- */
- memcpy(gl->cutbuf, gl->line + gl->buff_curpos, n);
- gl->cutbuf[n] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Copy one or more words preceding the cursor into the cut buffer,
- * without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_backward_copy_word)
-{
-/*
- * Find the location of the count'th start of word before the cursor.
- */
- int next = gl_nth_word_start_backward(gl, count);
-/*
- * How many characters are to be copied into the cut buffer?
- */
- int n = gl->buff_curpos - next;
- gl_place_cursor(gl, next);
-/*
- * Copy the specified segment and terminate the string.
- */
- memcpy(gl->cutbuf, gl->line + next, n);
- gl->cutbuf[n] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Copy the characters between the cursor and the count'th instance of
- * a specified character in the input line, into the cut buffer.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * count int The number of times to search.
- * c char The character to be searched for, or '\0' if
- * the character should be read from the user.
- * forward int True if searching forward.
- * onto int True if the search should end on top of the
- * character, false if the search should stop
- * one character before the character in the
- * specified search direction.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- *
- */
-static int gl_copy_find(GetLine *gl, int count, char c, int forward, int onto)
-{
- int n; /* The number of characters in the cut buffer */
-/*
- * Search for the character, and abort the operation if not found.
- */
- int pos = gl_find_char(gl, count, forward, onto, c);
- if(pos < 0)
- return 0;
-/*
- * Copy the specified segment.
- */
- if(forward) {
- n = pos + 1 - gl->buff_curpos;
- memcpy(gl->cutbuf, gl->line + gl->buff_curpos, n);
- } else {
- n = gl->buff_curpos - pos;
- memcpy(gl->cutbuf, gl->line + pos, n);
- if(gl->editor == GL_VI_MODE)
- gl_place_cursor(gl, pos);
- }
-/*
- * Terminate the copy.
- */
- gl->cutbuf[n] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Copy a section up to and including a specified character into the cut
- * buffer without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_forward_copy_find)
-{
- return gl_copy_find(gl, count, '\0', 1, 1);
-}
-
-/*.......................................................................
- * Copy a section back to and including a specified character into the cut
- * buffer without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_backward_copy_find)
-{
- return gl_copy_find(gl, count, '\0', 0, 1);
-}
-
-/*.......................................................................
- * Copy a section up to and not including a specified character into the cut
- * buffer without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_forward_copy_to)
-{
- return gl_copy_find(gl, count, '\0', 1, 0);
-}
-
-/*.......................................................................
- * Copy a section back to and not including a specified character into the cut
- * buffer without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_backward_copy_to)
-{
- return gl_copy_find(gl, count, '\0', 0, 0);
-}
-
-/*.......................................................................
- * Copy to a character specified in a previous search into the cut
- * buffer without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_copy_refind)
-{
- return gl_copy_find(gl, count, gl->vi.find_char, gl->vi.find_forward,
- gl->vi.find_onto);
-}
-
-/*.......................................................................
- * Copy to a character specified in a previous search, but in the opposite
- * direction, into the cut buffer without moving the cursor or deleting text.
- */
-static KT_KEY_FN(gl_copy_invert_refind)
-{
- return gl_copy_find(gl, count, gl->vi.find_char, !gl->vi.find_forward,
- gl->vi.find_onto);
-}
-
-/*.......................................................................
- * Set the position of the cursor in the line input buffer and the
- * terminal.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * buff_curpos int The new buffer cursor position.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_place_cursor(GetLine *gl, int buff_curpos)
-{
-/*
- * Don't allow the cursor position to go out of the bounds of the input
- * line.
- */
- if(buff_curpos >= gl->ntotal)
- buff_curpos = gl->vi.command ? gl->ntotal-1 : gl->ntotal;
- if(buff_curpos < 0)
- buff_curpos = 0;
-/*
- * Record the new buffer position.
- */
- gl->buff_curpos = buff_curpos;
-/*
- * Move the terminal cursor to the corresponding character.
- */
- return gl_set_term_curpos(gl, gl_buff_curpos_to_term_curpos(gl, buff_curpos));
-}
-
-/*.......................................................................
- * In vi command mode, this function saves the current line to the
- * historical buffer needed by the undo command. In emacs mode it does
- * nothing. In order to allow action functions to call other action
- * functions, gl_interpret_char() sets gl->vi.undo.saved to 0 before
- * invoking an action, and thereafter once any call to this function
- * has set it to 1, further calls are ignored.
- *
- * Input:
- * gl GetLine * The getline resource object.
- */
-static void gl_save_for_undo(GetLine *gl)
-{
- if(gl->vi.command && !gl->vi.undo.saved) {
- strcpy(gl->vi.undo.line, gl->line);
- gl->vi.undo.buff_curpos = gl->buff_curpos;
- gl->vi.undo.ntotal = gl->ntotal;
- gl->vi.undo.saved = 1;
- };
- if(gl->vi.command && !gl->vi.repeat.saved &&
- gl->current_fn != gl_vi_repeat_change) {
- gl->vi.repeat.fn = gl->current_fn;
- gl->vi.repeat.count = gl->current_count;
- gl->vi.repeat.saved = 1;
- };
- return;
-}
-
-/*.......................................................................
- * In vi mode, restore the line to the way it was before the last command
- * mode operation, storing the current line in the buffer so that the
- * undo operation itself can subsequently be undone.
- */
-static KT_KEY_FN(gl_vi_undo)
-{
-/*
- * Get pointers into the two lines.
- */
- char *undo_ptr = gl->vi.undo.line;
- char *line_ptr = gl->line;
-/*
- * Swap the characters of the two buffers up to the length of the shortest
- * line.
- */
- while(*undo_ptr && *line_ptr) {
- char c = *undo_ptr;
- *undo_ptr++ = *line_ptr;
- *line_ptr++ = c;
- };
-/*
- * Copy the rest directly.
- */
- if(gl->ntotal > gl->vi.undo.ntotal) {
- strcpy(undo_ptr, line_ptr);
- *line_ptr = '\0';
- } else {
- strcpy(line_ptr, undo_ptr);
- *undo_ptr = '\0';
- };
-/*
- * Swap the length information.
- */
- {
- int ntotal = gl->ntotal;
- gl->ntotal = gl->vi.undo.ntotal;
- gl->vi.undo.ntotal = ntotal;
- };
-/*
- * Set both cursor positions to the leftmost of the saved and current
- * cursor positions to emulate what vi does.
- */
- if(gl->buff_curpos < gl->vi.undo.buff_curpos)
- gl->vi.undo.buff_curpos = gl->buff_curpos;
- else
- gl->buff_curpos = gl->vi.undo.buff_curpos;
-/*
- * Since we have bipassed calling gl_save_for_undo(), record repeat
- * information inline.
- */
- gl->vi.repeat.fn = gl_vi_undo;
- gl->vi.repeat.count = 1;
-/*
- * Display the restored line.
- */
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * Delete the following word and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_forward_change_word)
-{
- gl_save_for_undo(gl);
- gl->vi.command = 0; /* Allow cursor at EOL */
- return gl_forward_delete_word(gl, count) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * Delete the preceding word and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_backward_change_word)
-{
- return gl_backward_delete_word(gl, count) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * Delete the following section and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_forward_change_find)
-{
- return gl_delete_find(gl, count, '\0', 1, 1, 1);
-}
-
-/*.......................................................................
- * Delete the preceding section and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_backward_change_find)
-{
- return gl_delete_find(gl, count, '\0', 0, 1, 1);
-}
-
-/*.......................................................................
- * Delete the following section and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_forward_change_to)
-{
- return gl_delete_find(gl, count, '\0', 1, 0, 1);
-}
-
-/*.......................................................................
- * Delete the preceding section and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_backward_change_to)
-{
- return gl_delete_find(gl, count, '\0', 0, 0, 1);
-}
-
-/*.......................................................................
- * Delete to a character specified by a previous search and leave the user
- * in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_change_refind)
-{
- return gl_delete_find(gl, count, gl->vi.find_char, gl->vi.find_forward,
- gl->vi.find_onto, 1);
-}
-
-/*.......................................................................
- * Delete to a character specified by a previous search, but in the opposite
- * direction, and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_change_invert_refind)
-{
- return gl_delete_find(gl, count, gl->vi.find_char, !gl->vi.find_forward,
- gl->vi.find_onto, 1);
-}
-
-/*.......................................................................
- * Delete the following character and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_forward_change_char)
-{
- gl_save_for_undo(gl);
- gl->vi.command = 0; /* Allow cursor at EOL */
- return gl_delete_chars(gl, count, 1) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * Delete the preceding character and leave the user in vi insert mode.
- */
-static KT_KEY_FN(gl_vi_backward_change_char)
-{
- return gl_backward_delete_char(gl, count) || gl_vi_insert(gl, 0);
-}
-
-/*.......................................................................
- * Starting from the cursor position change characters to the specified column.
- */
-static KT_KEY_FN(gl_vi_change_to_column)
-{
- if (--count >= gl->buff_curpos)
- return gl_vi_forward_change_char(gl, count - gl->buff_curpos);
- else
- return gl_vi_backward_change_char(gl, gl->buff_curpos - count);
-}
-
-/*.......................................................................
- * Starting from the cursor position change characters to a matching
- * parenthesis.
- */
-static KT_KEY_FN(gl_vi_change_to_parenthesis)
-{
- int curpos = gl_index_of_matching_paren(gl);
- if(curpos >= 0) {
- gl_save_for_undo(gl);
- if(curpos >= gl->buff_curpos)
- return gl_vi_forward_change_char(gl, curpos - gl->buff_curpos + 1);
- else
- return gl_vi_backward_change_char(gl, ++gl->buff_curpos - curpos + 1);
- };
- return 0;
-}
-
-/*.......................................................................
- * If in vi mode, switch to vi command mode.
- *
- * Input:
- * gl GetLine * The getline resource object.
- */
-static void gl_vi_command_mode(GetLine *gl)
-{
- if(gl->editor == GL_VI_MODE && !gl->vi.command) {
- gl->insert = 1;
- gl->vi.command = 1;
- gl->vi.repeat.input_curpos = gl->insert_curpos;
- gl->vi.repeat.command_curpos = gl->buff_curpos;
- gl->insert_curpos = 0; /* unrestrict left motion boundary */
- gl_cursor_left(gl, 1); /* Vi moves left one on entering command mode */
- };
-}
-
-/*.......................................................................
- * This is an action function which rings the terminal bell.
- */
-static KT_KEY_FN(gl_ring_bell)
-{
- return gl->silence_bell ? 0 :
- gl_output_control_sequence(gl, 1, gl->sound_bell);
-}
-
-/*.......................................................................
- * This is the action function which implements the vi-repeat-change
- * action.
- */
-static KT_KEY_FN(gl_vi_repeat_change)
-{
- int status; /* The return status of the repeated action function */
- int i;
-/*
- * Nothing to repeat?
- */
- if(!gl->vi.repeat.fn)
- return gl_ring_bell(gl, 1);
-/*
- * Provide a way for action functions to know whether they are being
- * called by us.
- */
- gl->vi.repeat.active = 1;
-/*
- * Re-run the recorded function.
- */
- status = gl->vi.repeat.fn(gl, gl->vi.repeat.count);
-/*
- * Mark the repeat as completed.
- */
- gl->vi.repeat.active = 0;
-/*
- * Is we are repeating a function that has just switched to input
- * mode to allow the user to type, re-enter the text that the user
- * previously entered.
- */
- if(status==0 && !gl->vi.command) {
-/*
- * Make sure that the current line has been saved.
- */
- gl_save_for_undo(gl);
-/*
- * Repeat a previous insertion or overwrite?
- */
- if(gl->vi.repeat.input_curpos >= 0 &&
- gl->vi.repeat.input_curpos <= gl->vi.repeat.command_curpos &&
- gl->vi.repeat.command_curpos <= gl->vi.undo.ntotal) {
-/*
- * Using the current line which is saved in the undo buffer, plus
- * the range of characters therein, as recorded by gl_vi_command_mode(),
- * add the characters that the user previously entered, to the input
- * line.
- */
- for(i=gl->vi.repeat.input_curpos; ivi.repeat.command_curpos; i++) {
- if(gl_add_char_to_line(gl, gl->vi.undo.line[i]))
- return 1;
- };
- };
-/*
- * Switch back to command mode, now that the insertion has been repeated.
- */
- gl_vi_command_mode(gl);
- };
- return status;
-}
-
-/*.......................................................................
- * If the cursor is currently over a parenthesis character, return the
- * index of its matching parenthesis. If not currently over a parenthesis
- * character, return the next close parenthesis character to the right of
- * the cursor. If the respective parenthesis character isn't found,
- * ring the terminal bell and return -1.
- *
- * Input:
- * gl GetLine * The getline resource object.
- * Output:
- * return int Either the index of the matching parenthesis,
- * or -1 if not found.
- */
-static int gl_index_of_matching_paren(GetLine *gl)
-{
- int i;
-/*
- * List the recognized parentheses, and their matches.
- */
- const char *o_paren = "([{";
- const char *c_paren = ")]}";
- const char *cptr;
-/*
- * Get the character that is currently under the cursor.
- */
- char c = gl->line[gl->buff_curpos];
-/*
- * If the character under the cursor is an open parenthesis, look forward
- * for the matching close parenthesis.
- */
- if((cptr=strchr(o_paren, c))) {
- char match = c_paren[cptr - o_paren];
- int matches_needed = 1;
- for(i=gl->buff_curpos+1; intotal; i++) {
- if(gl->line[i] == c)
- matches_needed++;
- else if(gl->line[i] == match && --matches_needed==0)
- return i;
- };
-/*
- * If the character under the cursor is an close parenthesis, look forward
- * for the matching open parenthesis.
- */
- } else if((cptr=strchr(c_paren, c))) {
- char match = o_paren[cptr - c_paren];
- int matches_needed = 1;
- for(i=gl->buff_curpos-1; i>=0; i--) {
- if(gl->line[i] == c)
- matches_needed++;
- else if(gl->line[i] == match && --matches_needed==0)
- return i;
- };
-/*
- * If not currently over a parenthesis character, search forwards for
- * the first close parenthesis (this is what the vi % binding does).
- */
- } else {
- for(i=gl->buff_curpos+1; intotal; i++)
- if(strchr(c_paren, gl->line[i]) != NULL)
- return i;
- };
-/*
- * Not found.
- */
- (void) gl_ring_bell(gl, 1);
- return -1;
-}
-
-/*.......................................................................
- * If the cursor is currently over a parenthesis character, this action
- * function moves the cursor to its matching parenthesis.
- */
-static KT_KEY_FN(gl_find_parenthesis)
-{
- int curpos = gl_index_of_matching_paren(gl);
- if(curpos >= 0)
- return gl_place_cursor(gl, curpos);
- return 0;
-}
-
-/*.......................................................................
- * Handle the receipt of the potential start of a new key-sequence from
- * the user.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * first_char char The first character of the sequence.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_interpret_char(GetLine *gl, char first_char)
-{
- KtKeyFn *keyfn; /* An action function */
- char keyseq[GL_KEY_MAX+1]; /* A special key sequence being read */
- int nkey=0; /* The number of characters in the key sequence */
- int count; /* The repeat count of an action function */
- int ret; /* The return value of an action function */
- int i;
-/*
- * Get the first character.
- */
- char c = first_char;
-/*
- * If editting is disabled, just add newly entered characters to the
- * input line buffer, and watch for the end of the line.
- */
- if(gl->editor == GL_NO_EDITOR) {
- if(gl->ntotal >= gl->linelen)
- return 0;
- if(c == '\n' || c == '\r')
- return gl_newline(gl, 1);
- gl->line[gl->ntotal++] = c;
- return 0;
- };
-/*
- * If the user is in the process of specifying a repeat count and the
- * new character is a digit, increment the repeat count accordingly.
- */
- if(gl->number >= 0 && isdigit((int)(unsigned char) c))
- return gl_digit_argument(gl, c);
-/*
- * In vi command mode, all key-sequences entered need to be
- * either implicitly or explicitly prefixed with an escape character.
- */
- else if(gl->vi.command && c != GL_ESC_CHAR)
- keyseq[nkey++] = GL_ESC_CHAR;
-/*
- * If the first character of the sequence is a printable character,
- * then to avoid confusion with the special "up", "down", "left"
- * or "right" cursor key bindings, we need to prefix the
- * printable character with a backslash escape before looking it up.
- */
- else if(!IS_META_CHAR(c) && !IS_CTRL_CHAR(c))
- keyseq[nkey++] = '\\';
-/*
- * Compose a potentially multiple key-sequence in gl->keyseq.
- */
- while(nkey < GL_KEY_MAX) {
- int first, last; /* The matching entries in gl->keys */
-/*
- * If the character is an unprintable meta character, split it
- * into two characters, an escape character and the character
- * that was modified by the meta key.
- */
- if(IS_META_CHAR(c)) {
- keyseq[nkey++] = GL_ESC_CHAR;
- c = META_TO_CHAR(c);
- continue;
- };
-/*
- * Append the latest character to the key sequence.
- */
- keyseq[nkey++] = c;
-/*
- * When doing vi-style editing, an escape at the beginning of any binding
- * switches to command mode.
- */
- if(keyseq[0] == GL_ESC_CHAR && !gl->vi.command)
- gl_vi_command_mode(gl);
-/*
- * Lookup the key sequence.
- */
- switch(_kt_lookup_keybinding(gl->bindings, keyseq, nkey, &first, &last)) {
- case KT_EXACT_MATCH:
-/*
- * Get the matching action function.
- */
- keyfn = gl->bindings->table[first].keyfn;
-/*
- * Get the repeat count, passing the last keystroke if executing the
- * digit-argument action.
- */
- if(keyfn == gl_digit_argument) {
- count = c;
- } else {
- count = gl->number >= 0 ? gl->number : 1;
- };
-/*
- * Record the function that is being invoked.
- */
- gl->current_fn = keyfn;
- gl->current_count = count;
-/*
- * Mark the current line as not yet preserved for use by the vi undo command.
- */
- gl->vi.undo.saved = 0;
- gl->vi.repeat.saved = 0;
-/*
- * Execute the action function. Note the action function can tell
- * whether the provided repeat count was defaulted or specified
- * explicitly by looking at whether gl->number is -1 or not. If
- * it is negative, then no repeat count was specified by the user.
- */
- ret = keyfn(gl, count);
-/*
- * Reset the repeat count after running action functions (other
- * than digit-argument).
- */
- if(keyfn != gl_digit_argument)
- gl->number = -1;
- if(ret)
- return 1;
- return 0;
- break;
- case KT_AMBIG_MATCH: /* Ambiguous match - so look ahead */
- if(gl_read_character(gl, &c)) /* Get the next character */
- return 1;
- break;
- case KT_NO_MATCH:
-/*
- * If the first character looked like it might be a prefix of a key-sequence
- * but it turned out not to be, ring the bell to tell the user that it
- * wasn't recognised.
- */
- if(keyseq[0] != '\\' && keyseq[0] != '\t') {
- gl_ring_bell(gl, 0);
- } else {
-/*
- * The user typed a single printable character that doesn't match
- * the start of any keysequence, so add it to the line in accordance
- * with the current repeat count.
- */
- count = gl->number >= 0 ? gl->number : 1;
- for(i=0; inumber = -1;
- };
- return 0;
- break;
- case KT_BAD_MATCH:
- return 1;
- break;
- };
- };
-/*
- * Key sequence too long to match.
- */
- return 0;
-}
-
-/*.......................................................................
- * Configure the application and/or user-specific behavior of
- * gl_get_line().
- *
- * Note that calling this function between calling new_GetLine() and
- * the first call to new_GetLine(), disables the otherwise automatic
- * reading of ~/.teclarc on the first call to gl_get_line().
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * app_string const char * Either NULL, or a string containing one
- * or more .teclarc command lines, separated
- * by newline characters. This can be used to
- * establish an application-specific
- * configuration, without the need for an external
- * file. This is particularly useful in embedded
- * environments where there is no filesystem.
- * app_file const char * Either NULL, or the pathname of an
- * application-specific .teclarc file. The
- * contents of this file, if provided, are
- * read after the contents of app_string[].
- * user_file const char * Either NULL, or the pathname of a
- * user-specific .teclarc file. Except in
- * embedded applications, this should
- * usually be "~/.teclarc".
- * Output:
- * return int 0 - OK.
- * 1 - Bad argument(s).
- */
-int gl_configure_getline(GetLine *gl, const char *app_string,
- const char *app_file, const char *user_file)
-{
-/*
- * Check the arguments.
- */
- if(!gl) {
- fprintf(stderr, "gl_configure_getline: NULL gl argument.\n");
- return 1;
- };
-/*
- * Mark getline as having been explicitly configured.
- */
- gl->configured = 1;
-/*
- * Start by parsing the configuration string, if provided.
- */
- if(app_string)
- (void) _gl_read_config_string(gl, app_string, KTB_NORM);
-/*
- * Now parse the application-specific configuration file, if provided.
- */
- if(app_file)
- (void) _gl_read_config_file(gl, app_file, KTB_NORM);
-/*
- * Finally, parse the user-specific configuration file, if provided.
- */
- if(user_file)
- (void) _gl_read_config_file(gl, user_file, KTB_USER);
-/*
- * Record the names of the configuration files to allow them to
- * be re-read if requested at a later time.
- */
- if(gl_record_string(&gl->app_file, app_file) ||
- gl_record_string(&gl->user_file, user_file)) {
- fprintf(stderr,
- "Insufficient memory to record tecla configuration file names.\n");
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Replace a malloc'd string (or NULL), with another malloc'd copy of
- * a string (or NULL).
- *
- * Input:
- * sptr char ** On input if *sptr!=NULL, *sptr will be
- * free'd and *sptr will be set to NULL. Then,
- * on output, if string!=NULL a malloc'd copy
- * of this string will be assigned to *sptr.
- * string const char * The string to be copied, or NULL to simply
- * discard any existing string.
- * Output:
- * return int 0 - OK.
- * 1 - Malloc failure (no error message is generated).
- */
-static int gl_record_string(char **sptr, const char *string)
-{
-/*
- * If the original string is the same string, don't do anything.
- */
- if(*sptr == string || (*sptr && string && strcmp(*sptr, string)==0))
- return 0;
-/*
- * Discard any existing cached string.
- */
- if(*sptr) {
- free(*sptr);
- *sptr = NULL;
- };
-/*
- * Allocate memory for a copy of the specified string.
- */
- if(string) {
- *sptr = (char *) malloc(strlen(string) + 1);
- if(!*sptr)
- return 1;
-/*
- * Copy the string.
- */
- strcpy(*sptr, string);
- };
- return 0;
-}
-
-/*.......................................................................
- * Re-read any application-specific and user-specific files previously
- * specified via the gl_configure_getline() function.
- */
-static KT_KEY_FN(gl_read_init_files)
-{
- return gl_configure_getline(gl, NULL, gl->app_file, gl->user_file);
-}
-
-/*.......................................................................
- * Save the contents of the history buffer to a given new file.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * filename const char * The name of the new file to write to.
- * comment const char * Extra information such as timestamps will
- * be recorded on a line started with this
- * string, the idea being that the file can
- * double as a command file. Specify "" if
- * you don't care.
- * max_lines int The maximum number of lines to save, or -1
- * to save all of the lines in the history
- * list.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_save_history(GetLine *gl, const char *filename, const char *comment,
- int max_lines)
-{
- FileExpansion *expansion; /* The expansion of the filename */
-/*
- * Check the arguments.
- */
- if(!gl || !filename || !comment) {
- fprintf(stderr, "gl_save_history: NULL argument(s).\n");
- return 1;
- };
-/*
- * Expand the filename.
- */
- expansion = ef_expand_file(gl->ef, filename, -1);
- if(!expansion) {
- fprintf(stderr, "Unable to expand %s (%s).\n", filename,
- ef_last_error(gl->ef));
- return 1;
- };
-/*
- * Attempt to save to the specified file.
- */
- return _glh_save_history(gl->glh, expansion->files[0], comment, max_lines);
-}
-
-/*.......................................................................
- * Restore the contents of the history buffer from a given new file.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * filename const char * The name of the new file to write to.
- * comment const char * This must be the same string that was
- * passed to gl_save_history() when the file
- * was written.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_load_history(GetLine *gl, const char *filename, const char *comment)
-{
- FileExpansion *expansion; /* The expansion of the filename */
-/*
- * Check the arguments.
- */
- if(!gl || !filename || !comment) {
- fprintf(stderr, "gl_load_history: NULL argument(s).\n");
- return 1;
- };
-/*
- * Expand the filename.
- */
- expansion = ef_expand_file(gl->ef, filename, -1);
- if(!expansion) {
- fprintf(stderr, "Unable to expand %s (%s).\n", filename,
- ef_last_error(gl->ef));
- return 1;
- };
-/*
- * Attempt to load from the specified file.
- */
- if(_glh_load_history(gl->glh, expansion->files[0], comment,
- gl->cutbuf, gl->linelen)) {
- gl->cutbuf[0] = '\0';
- return 1;
- };
- gl->cutbuf[0] = '\0';
- return 0;
-}
-
-/*.......................................................................
- * Where possible, register a function and associated data to be called
- * whenever a specified event is seen on a file descriptor.
- *
- * Input:
- * gl GetLine * The resource object of the command-line input
- * module.
- * fd int The file descriptor to watch.
- * event GlFdEvent The type of activity to watch for.
- * callback GlFdEventFn * The function to call when the specified
- * event occurs. Setting this to 0 removes
- * any existing callback.
- * data void * A pointer to arbitrary data to pass to the
- * callback function.
- * Output:
- * return int 0 - OK.
- * 1 - Either gl==NULL, or this facility isn't
- * available on the the host system
- * (ie. select() isn't available). No
- * error message is generated in the latter
- * case.
- */
-int gl_watch_fd(GetLine *gl, int fd, GlFdEvent event,
- GlFdEventFn *callback, void *data)
-#if !defined(HAVE_SELECT)
-{return 1;} /* The facility isn't supported on this system */
-#else
-{
- GlFdNode *prev; /* The node that precedes 'node' in gl->fd_nodes */
- GlFdNode *node; /* The file-descriptor node being checked */
-/*
- * Check the arguments.
- */
- if(!gl) {
- fprintf(stderr, "gl_watch_fd: NULL gl argument.\n");
- return 1;
- };
- if(fd < 0) {
- fprintf(stderr, "gl_watch_fd: Error fd < 0.\n");
- return 1;
- };
-/*
- * Search the list of already registered fd activity nodes for the specified
- * file descriptor.
- */
- for(prev=NULL,node=gl->fd_nodes; node && node->fd != fd;
- prev=node, node=node->next)
- ;
-/*
- * Hasn't a node been allocated for this fd yet?
- */
- if(!node) {
-/*
- * If there is no callback to record, just ignore the call.
- */
- if(!callback)
- return 0;
-/*
- * Allocate the new node.
- */
- node = (GlFdNode *) _new_FreeListNode(gl->fd_node_mem);
- if(!node) {
- fprintf(stderr, "gl_watch_fd: Insufficient memory.\n");
- return 1;
- };
-/*
- * Prepend the node to the list.
- */
- node->next = gl->fd_nodes;
- gl->fd_nodes = node;
-/*
- * Initialize the node.
- */
- node->fd = fd;
- node->rd.fn = 0;
- node->rd.data = NULL;
- node->ur = node->wr = node->rd;
- };
-/*
- * Record the new callback.
- */
- switch(event) {
- case GLFD_READ:
- node->rd.fn = callback;
- node->rd.data = data;
- if(callback)
- FD_SET(fd, &gl->rfds);
- else
- FD_CLR(fd, &gl->rfds);
- break;
- case GLFD_WRITE:
- node->wr.fn = callback;
- node->wr.data = data;
- if(callback)
- FD_SET(fd, &gl->wfds);
- else
- FD_CLR(fd, &gl->wfds);
- break;
- case GLFD_URGENT:
- node->ur.fn = callback;
- node->ur.data = data;
- if(callback)
- FD_SET(fd, &gl->ufds);
- else
- FD_CLR(fd, &gl->ufds);
- break;
- };
-/*
- * Keep a record of the largest file descriptor being watched.
- */
- if(fd > gl->max_fd)
- gl->max_fd = fd;
-/*
- * If we are deleting an existing callback, also delete the parent
- * activity node if no callbacks are registered to the fd anymore.
- */
- if(!callback) {
- if(!node->rd.fn && !node->wr.fn && !node->ur.fn) {
- if(prev)
- prev->next = node->next;
- else
- gl->fd_nodes = node->next;
- node = (GlFdNode *) _del_FreeListNode(gl->fd_node_mem, node);
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * When select() is available, this function is called by
- * gl_read_character() to respond to file-descriptor events registered by
- * the caller.
- *
- * Input:
- * gl GetLine * The resource object of this module.
- * Output:
- * return int 0 - A character is waiting to be read from the
- * terminal.
- * 1 - An error occurred.
- */
-static int gl_event_handler(GetLine *gl)
-{
-/*
- * If at any time no external callbacks remain, quit the loop return,
- * so that we can simply wait in read(). This is designed as an
- * optimization for when no callbacks have been registered on entry to
- * this function, but since callbacks can delete themselves, it can
- * also help later.
- */
- while(gl->fd_nodes) {
-/*
- * Get the set of descriptors to be watched.
- */
- fd_set rfds = gl->rfds;
- fd_set wfds = gl->wfds;
- fd_set ufds = gl->ufds;
-/*
- * Wait for activity on any of the file descriptors.
- */
- int nready = select(gl->max_fd+1, &rfds, &wfds, &ufds, NULL);
-/*
- * If select() returns but none of the file descriptors are reported
- * to have activity, then select() timed out.
- */
- if(nready == 0) {
- fprintf(stdout, "\r\nUnexpected select() timeout\r\n");
- return 1;
-/*
- * If nready < 0, this means an error occurred.
- */
- } else if(nready < 0) {
- if(errno != EINTR) {
-#ifdef EAGAIN
- if(!errno) /* This can happen with SysV O_NDELAY */
- errno = EAGAIN;
-#endif
- return 1;
- };
-/*
- * If the terminal input file descriptor has data available, return.
- */
- } else if(FD_ISSET(gl->input_fd, &rfds)) {
- return 0;
-/*
- * Check for activity on any of the file descriptors registered by the
- * calling application, and call the associated callback functions.
- */
- } else {
- GlFdNode *node; /* The fd event node being checked */
-/*
- * Search the list for the file descriptor that caused select() to return.
- */
- for(node=gl->fd_nodes; node; node=node->next) {
-/*
- * Is there urgent out of band data waiting to be read on fd?
- */
- if(node->ur.fn && FD_ISSET(node->fd, &ufds)) {
- if(gl_call_fd_handler(gl, &node->ur, node->fd, GLFD_URGENT))
- return 1;
- break; /* The callback may have changed the list of nodes */
-/*
- * Is the fd readable?
- */
- } else if(node->rd.fn && FD_ISSET(node->fd, &rfds)) {
- if(gl_call_fd_handler(gl, &node->rd, node->fd, GLFD_READ))
- return 1;
- break; /* The callback may have changed the list of nodes */
-/*
- * Is the fd writable?
- */
- } else if(node->wr.fn && FD_ISSET(node->fd, &rfds)) {
- if(gl_call_fd_handler(gl, &node->wr, node->fd, GLFD_WRITE))
- return 1;
- break; /* The callback may have changed the list of nodes */
- };
- };
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * This is a private function of gl_event_handler(), used to call a
- * file-descriptor callback.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * gfh GlFdHandler * The I/O handler.
- * fd int The file-descriptor being reported.
- * event GlFdEvent The I/O event being reported.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_call_fd_handler(GetLine *gl, GlFdHandler *gfh, int fd,
- GlFdEvent event)
-{
- Termios attr; /* The terminal attributes */
- int redisplay = 0; /* True to have the input line redisplayed */
- int waserr = 0; /* True after any error */
-/*
- * We don't want to do a longjmp in the middle of a callback that
- * might be modifying global or heap data, so block all the signals
- * that we are trapping.
- */
- if(sigprocmask(SIG_BLOCK, &gl->new_signal_set, NULL) == -1) {
- fprintf(stderr, "getline(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
-/*
- * Re-enable conversion of newline characters to carriage-return/linefeed,
- * so that the callback can write to the terminal without having to do
- * anything special.
- */
- if(tcgetattr(gl->input_fd, &attr)) {
- fprintf(stderr, "\r\ngetline(): tcgetattr error: %s\r\n", strerror(errno));
- return 1;
- };
- attr.c_oflag |= OPOST;
- while(tcsetattr(gl->input_fd, TCSADRAIN, &attr)) {
- if (errno != EINTR) {
- fprintf(stderr, "\r\ngetline(): tcsetattr error: %s\r\n",
- strerror(errno));
- return 1;
- };
- };
-/*
- * Invoke the application's callback function.
- */
- switch(gfh->fn(gl, gfh->data, fd, event)) {
- default:
- case GLFD_ABORT:
- waserr = 1;
- break;
- case GLFD_REFRESH:
- redisplay = 1;
- break;
- case GLFD_CONTINUE:
- redisplay = gl->prompt_changed;
- break;
- };
-/*
- * Disable conversion of newline characters to carriage-return/linefeed.
- */
- attr.c_oflag &= ~(OPOST);
- while(tcsetattr(gl->input_fd, TCSADRAIN, &attr)) {
- if(errno != EINTR) {
- fprintf(stderr, "\ngetline(): tcsetattr error: %s\n", strerror(errno));
- return 1;
- };
- };
-/*
- * If requested, redisplay the input line.
- */
- if(redisplay && gl_redisplay(gl, 1))
- return 1;
-/*
- * Unblock the signals that we were trapping before this function
- * was called.
- */
- if(sigprocmask(SIG_UNBLOCK, &gl->new_signal_set, NULL) == -1) {
- fprintf(stderr, "getline(): sigprocmask error: %s\n", strerror(errno));
- return 1;
- };
- return waserr;
-}
-#endif /* HAVE_SELECT */
-
-/*.......................................................................
- * Switch history groups. History groups represent separate history
- * lists recorded within a single history buffer. Different groups
- * are distinguished by integer identifiers chosen by the calling
- * appplicaton. Initially new_GetLine() sets the group identifier to
- * 0. Whenever a new line is appended to the history list, the current
- * group identifier is recorded with it, and history lookups only
- * consider lines marked with the current group identifier.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * id unsigned The new history group identifier.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_group_history(GetLine *gl, unsigned id)
-{
-/*
- * Check the arguments.
- */
- if(!gl) {
- fprintf(stderr, "gl_group_history: NULL argument(s).\n");
- return 1;
- };
-/*
- * If the group isn't being changed, do nothing.
- */
- if(_glh_get_group(gl->glh) == id)
- return 0;
-/*
- * Establish the new group.
- */
- if(_glh_set_group(gl->glh, id))
- return 1;
-/*
- * Prevent history information from the previous group being
- * inappropriately used by the next call to gl_get_line().
- */
- gl->preload_history = 0;
- gl->last_search = -1;
- return 0;
-}
-
-/*.......................................................................
- * Display the contents of the history list.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * fp FILE * The stdio output stream to write to.
- * fmt const char * A format string. This containing characters to be
- * written verbatim, plus any of the following
- * format directives:
- * %D - The date, formatted like 2001-11-20
- * %T - The time of day, formatted like 23:59:59
- * %N - The sequential entry number of the
- * line in the history buffer.
- * %G - The number of the history group that
- * the line belongs to.
- * %% - A literal % character.
- * %H - The history line itself.
- * Note that a '\n' newline character is not
- * appended by default.
- * all_groups int If true, display history lines from all
- * history groups. Otherwise only display
- * those of the current history group.
- * max_lines int If max_lines is < 0, all available lines
- * are displayed. Otherwise only the most
- * recent max_lines lines will be displayed.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_show_history(GetLine *gl, FILE *fp, const char *fmt, int all_groups,
- int max_lines)
-{
-/*
- * Check the arguments.
- */
- if(!gl || !fp || !fmt) {
- fprintf(stderr, "gl_show_history: NULL argument(s).\n");
- return 1;
- };
- return _glh_show_history(gl->glh, fp, fmt, all_groups, max_lines);
-}
-
-/*.......................................................................
- * Update if necessary, and return the current size of the terminal.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * def_ncolumn int If the number of columns in the terminal
- * can't be determined, substitute this number.
- * def_nline int If the number of lines in the terminal can't
- * be determined, substitute this number.
- * Output:
- * return GlTerminalSize The current terminal size.
- */
-GlTerminalSize gl_terminal_size(GetLine *gl, int def_ncolumn, int def_nline)
-{
- GlTerminalSize size; /* The return value */
- const char *env; /* The value of an environment variable */
- int n; /* A number read from env[] */
-/*
- * Set the number of lines and columns to non-sensical values so that
- * we know later if they have been set.
- */
- gl->nline = 0;
- gl->ncolumn = 0;
-/*
- * Are we reading from a terminal?
- */
- if(gl->is_term) {
-/*
- * Ask the terminal directly if possible.
- */
-#ifdef USE_SIGWINCH
- (void) gl_resize_terminal(gl, 0);
-#endif
-/*
- * If gl_resize_terminal() couldn't be used, or it returned non-sensical
- * values for the number of lines, see if the LINES environment variable
- * exists and specifies a believable number. If this doesn't work,
- * look up the default size in the terminal information database,
- * where available.
- */
- if(gl->nline < 1) {
- if((env = getenv("LINES")) && (n=atoi(env)) > 0)
- gl->nline = n;
-#ifdef USE_TERMINFO
- else
- gl->nline = tigetnum((char *)"lines");
-#elif defined(USE_TERMCAP)
- else
- gl->nline = tgetnum("li");
-#endif
- };
-/*
- * If gl_resize_terminal() couldn't be used, or it returned non-sensical
- * values for the number of columns, see if the COLUMNS environment variable
- * exists and specifies a believable number. If this doesn't work, fall
- * lookup the default size in the terminal information database,
- * where available.
- */
- if(gl->ncolumn < 1) {
- if((env = getenv("COLUMNS")) && (n=atoi(env)) > 0)
- gl->ncolumn = n;
-#ifdef USE_TERMINFO
- else
- gl->ncolumn = tigetnum((char *)"cols");
-#elif defined(USE_TERMCAP)
- else
- gl->ncolumn = tgetnum("co");
-#endif
- };
- };
-/*
- * If we still haven't been able to acquire reasonable values, substitute
- * the default values specified by the caller.
- */
- if(gl->nline <= 0)
- gl->nline = def_nline;
- if(gl->ncolumn <= 0)
- gl->ncolumn = def_ncolumn;
-/*
- * Copy the new size into the return value.
- */
- size.nline = gl->nline;
- size.ncolumn = gl->ncolumn;
- return size;
-}
-
-/*.......................................................................
- * Resize or delete the history buffer.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * bufsize size_t The number of bytes in the history buffer, or 0
- * to delete the buffer completely.
- * Output:
- * return int 0 - OK.
- * 1 - Insufficient memory (the previous buffer
- * will have been retained). No error message
- * will be displayed.
- */
-int gl_resize_history(GetLine *gl, size_t bufsize)
-{
- return gl ? _glh_resize_history(gl->glh, bufsize) : 1;
-}
-
-/*.......................................................................
- * Set an upper limit to the number of lines that can be recorded in the
- * history list, or remove a previously specified limit.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * max_lines int The maximum number of lines to allow, or -1 to
- * cancel a previous limit and allow as many lines
- * as will fit in the current history buffer size.
- */
-void gl_limit_history(GetLine *gl, int max_lines)
-{
- if(gl)
- _glh_limit_history(gl->glh, max_lines);
-}
-
-/*.......................................................................
- * Discard either all historical lines, or just those associated with the
- * current history group.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * all_groups int If true, clear all of the history. If false,
- * clear only the stored lines associated with the
- * currently selected history group.
- */
-void gl_clear_history(GetLine *gl, int all_groups)
-{
- if(gl)
- _glh_clear_history(gl->glh, all_groups);
-}
-
-/*.......................................................................
- * Temporarily enable or disable the gl_get_line() history mechanism.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * enable int If true, turn on the history mechanism. If
- * false, disable it.
- */
-void gl_toggle_history(GetLine *gl, int enable)
-{
- if(gl)
- _glh_toggle_history(gl->glh, enable);
-}
-
-/*.......................................................................
- * Lookup a history line by its sequential number of entry in the
- * history buffer.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * id unsigned long The identification number of the line to
- * be returned, where 0 denotes the first line
- * that was entered in the history list, and
- * each subsequently added line has a number
- * one greater than the previous one. For
- * the range of lines currently in the list,
- * see the gl_range_of_history() function.
- * Input/Output:
- * line GlHistoryLine * A pointer to the variable in which to
- * return the details of the line.
- * Output:
- * return int 0 - The line is no longer in the history
- * list, and *line has not been changed.
- * 1 - The requested line can be found in
- * *line. Note that line->line is part
- * of the history buffer, so a
- * private copy should be made if you
- * wish to use it after subsequent calls
- * to any functions that take *gl as an
- * argument.
- */
-int gl_lookup_history(GetLine *gl, unsigned long id, GlHistoryLine *line)
-{
- return gl ? _glh_lookup_history(gl->glh, (GlhLineID) id, &line->line,
- &line->group, &line->timestamp) : 0;
-}
-
-/*.......................................................................
- * Query the state of the history list. Note that any of the input/output
- * pointers can be specified as NULL.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * Input/Output:
- * state GlHistoryState * A pointer to the variable in which to record
- * the return values.
- */
-void gl_state_of_history(GetLine *gl, GlHistoryState *state)
-{
- if(gl && state)
- _glh_state_of_history(gl->glh, &state->enabled, &state->group,
- &state->max_lines);
-}
-
-/*.......................................................................
- * Query the number and range of lines in the history buffer.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * range GlHistoryRange * A pointer to the variable in which to record
- * the return values. If range->nline=0, the
- * range of lines will be given as 0-0.
- */
-void gl_range_of_history(GetLine *gl, GlHistoryRange *range)
-{
- if(gl && range)
- _glh_range_of_history(gl->glh, &range->oldest, &range->newest,
- &range->nlines);
-}
-
-/*.......................................................................
- * Return the size of the history buffer and the amount of the
- * buffer that is currently in use.
- *
- * Input:
- * gl GetLine * The gl_get_line() resource object.
- * Input/Output:
- * GlHistorySize size * A pointer to the variable in which to return
- * the results.
- */
-void gl_size_of_history(GetLine *gl, GlHistorySize *size)
-{
- if(gl && size)
- _glh_size_of_history(gl->glh, &size->size, &size->used);
-}
-
-/*.......................................................................
- * This is the action function that lists the contents of the history
- * list.
- */
-static KT_KEY_FN(gl_list_history)
-{
-/*
- * Start a new line.
- */
- if(fprintf(gl->output_fp, "\r\n") < 0)
- return 1;
-/*
- * List history lines that belong to the current group.
- */
- _glh_show_history(gl->glh, gl->output_fp, "%N %T %H\r\n", 0,
- count<=1 ? -1 : count);
-/*
- * Redisplay the line being edited.
- */
- gl->term_curpos = 0;
- return gl_redisplay(gl,1);
-}
-
-/*.......................................................................
- * Specify whether text that users type should be displayed or hidden.
- * In the latter case, only the prompt is displayed, and the final
- * input line is not archived in the history list.
- *
- * Input:
- * gl GetLine * The gl_get_line() resource object.
- * enable int 0 - Disable echoing.
- * 1 - Enable echoing.
- * -1 - Just query the mode without changing it.
- * Output:
- * return int The echoing disposition that was in effect
- * before this function was called:
- * 0 - Echoing was disabled.
- * 1 - Echoing was enabled.
- */
-int gl_echo_mode(GetLine *gl, int enable)
-{
- if(gl) {
- int was_echoing = gl->echo;
- if(enable >= 0)
- gl->echo = enable;
- return was_echoing;
- };
- return 1;
-}
-
-/*.......................................................................
- * Display the prompt.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_display_prompt(GetLine *gl)
-{
- const char *pptr; /* A pointer into gl->prompt[] */
- unsigned old_attr=0; /* The current text display attributes */
- unsigned new_attr=0; /* The requested text display attributes */
-/*
- * Temporarily switch to echoing output characters.
- */
- int kept_echo = gl->echo;
- gl->echo = 1;
-/*
- * In case the screen got messed up, send a carriage return to
- * put the cursor at the beginning of the current terminal line.
- */
- if(gl_output_control_sequence(gl, 1, gl->bol))
- return 1;
-/*
- * Write the prompt, using the currently selected prompt style.
- */
- switch(gl->prompt_style) {
- case GL_LITERAL_PROMPT:
- if(gl_output_string(gl, gl->prompt, '\0'))
- return 1;
- break;
- case GL_FORMAT_PROMPT:
- for(pptr=gl->prompt; *pptr; pptr++) {
-/*
- * Does the latest character appear to be the start of a directive?
- */
- if(*pptr == '%') {
-/*
- * Check for and act on attribute changing directives.
- */
- switch(pptr[1]) {
-/*
- * Add or remove a text attribute from the new set of attributes.
- */
- case 'B': case 'U': case 'S': case 'P': case 'F': case 'V':
- case 'b': case 'u': case 's': case 'p': case 'f': case 'v':
- switch(*++pptr) {
- case 'B': /* Switch to a bold font */
- new_attr |= GL_TXT_BOLD;
- break;
- case 'b': /* Switch to a non-bold font */
- new_attr &= ~GL_TXT_BOLD;
- break;
- case 'U': /* Start underlining */
- new_attr |= GL_TXT_UNDERLINE;
- break;
- case 'u': /* Stop underlining */
- new_attr &= ~GL_TXT_UNDERLINE;
- break;
- case 'S': /* Start highlighting */
- new_attr |= GL_TXT_STANDOUT;
- break;
- case 's': /* Stop highlighting */
- new_attr &= ~GL_TXT_STANDOUT;
- break;
- case 'P': /* Switch to a pale font */
- new_attr |= GL_TXT_DIM;
- break;
- case 'p': /* Switch to a non-pale font */
- new_attr &= ~GL_TXT_DIM;
- break;
- case 'F': /* Switch to a flashing font */
- new_attr |= GL_TXT_BLINK;
- break;
- case 'f': /* Switch to a steady font */
- new_attr &= ~GL_TXT_BLINK;
- break;
- case 'V': /* Switch to reverse video */
- new_attr |= GL_TXT_REVERSE;
- break;
- case 'v': /* Switch out of reverse video */
- new_attr &= ~GL_TXT_REVERSE;
- break;
- };
- continue;
-/*
- * A literal % is represented by %%. Skip the leading %.
- */
- case '%':
- pptr++;
- break;
- };
- };
-/*
- * Many terminals, when asked to turn off a single text attribute, turn
- * them all off, so the portable way to turn one off individually is to
- * explicitly turn them all off, then specify those that we want from
- * scratch.
- */
- if(old_attr & ~new_attr) {
- if(gl_output_control_sequence(gl, 1, gl->text_attr_off))
- return 1;
- old_attr = 0;
- };
-/*
- * Install new text attributes?
- */
- if(new_attr != old_attr) {
- if(new_attr & GL_TXT_BOLD && !(old_attr & GL_TXT_BOLD) &&
- gl_output_control_sequence(gl, 1, gl->bold))
- return 1;
- if(new_attr & GL_TXT_UNDERLINE && !(old_attr & GL_TXT_UNDERLINE) &&
- gl_output_control_sequence(gl, 1, gl->underline))
- return 1;
- if(new_attr & GL_TXT_STANDOUT && !(old_attr & GL_TXT_STANDOUT) &&
- gl_output_control_sequence(gl, 1, gl->standout))
- return 1;
- if(new_attr & GL_TXT_DIM && !(old_attr & GL_TXT_DIM) &&
- gl_output_control_sequence(gl, 1, gl->dim))
- return 1;
- if(new_attr & GL_TXT_REVERSE && !(old_attr & GL_TXT_REVERSE) &&
- gl_output_control_sequence(gl, 1, gl->reverse))
- return 1;
- if(new_attr & GL_TXT_BLINK && !(old_attr & GL_TXT_BLINK) &&
- gl_output_control_sequence(gl, 1, gl->blink))
- return 1;
- old_attr = new_attr;
- };
-/*
- * Display the latest character.
- */
- if(gl_output_char(gl, *pptr, pptr[1]))
- return 1;
- };
-/*
- * Turn off all text attributes now that we have finished drawing
- * the prompt.
- */
- if(gl_output_control_sequence(gl, 1, gl->text_attr_off))
- return 1;
- break;
- };
-/*
- * Restore the original echo mode.
- */
- gl->echo = kept_echo;
-/*
- * The prompt has now been displayed at least once.
- */
- gl->prompt_changed = 0;
- return 0;
-}
-
-/*.......................................................................
- * This function can be called from gl_get_line() callbacks to have
- * the prompt changed when they return. It has no effect if gl_get_line()
- * is not currently being invoked.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * prompt const char * The new prompt.
- */
-void gl_replace_prompt(GetLine *gl, const char *prompt)
-{
- if(gl) {
- gl->prompt = prompt ? prompt : "";
- gl->prompt_len = gl_displayed_prompt_width(gl);
- gl->prompt_changed = 1;
- };
-}
-
-/*.......................................................................
- * Work out the length of the current prompt on the terminal, according
- * to the current prompt formatting style.
- *
- * Input:
- * gl GetLine * The resource object of this library.
- * Output:
- * return int The number of displayed characters.
- */
-static int gl_displayed_prompt_width(GetLine *gl)
-{
- int slen=0; /* The displayed number of characters */
- const char *pptr; /* A pointer into prompt[] */
-/*
- * The length differs according to the prompt display style.
- */
- switch(gl->prompt_style) {
- case GL_LITERAL_PROMPT:
- return gl_displayed_string_width(gl, gl->prompt, -1, 0);
- break;
- case GL_FORMAT_PROMPT:
-/*
- * Add up the length of the displayed string, while filtering out
- * attribute directives.
- */
- for(pptr=gl->prompt; *pptr; pptr++) {
-/*
- * Does the latest character appear to be the start of a directive?
- */
- if(*pptr == '%') {
-/*
- * Check for and skip attribute changing directives.
- */
- switch(pptr[1]) {
- case 'B': case 'b': case 'U': case 'u': case 'S': case 's':
- pptr++;
- continue;
-/*
- * A literal % is represented by %%. Skip the leading %.
- */
- case '%':
- pptr++;
- break;
- };
- };
- slen += gl_displayed_char_width(gl, *pptr, slen);
- };
- break;
- };
- return slen;
-}
-
-/*.......................................................................
- * Specify whether to heed text attribute directives within prompt
- * strings.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * style GlPromptStyle The style of prompt (see the definition of
- * GlPromptStyle in libtecla.h for details).
- */
-void gl_prompt_style(GetLine *gl, GlPromptStyle style)
-{
- if(gl) {
- if(style != gl->prompt_style) {
- gl->prompt_style = style;
- gl->prompt_len = gl_displayed_prompt_width(gl);
- gl->prompt_changed = 1;
- };
- };
-}
-
-/*.......................................................................
- * Tell gl_get_line() how to respond to a given signal. This can be used
- * both to override the default responses to signals that gl_get_line()
- * normally catches and to add new signals to the list that are to be
- * caught.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * signo int The number of the signal to be caught.
- * flags unsigned A bitwise union of GlSignalFlags enumerators.
- * after GlAfterSignal What to do after the application's signal
- * handler has been called.
- * errno_value int The value to set errno to.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_trap_signal(GetLine *gl, int signo, unsigned flags,
- GlAfterSignal after, int errno_value)
-{
- GlSignalNode *sig;
-/*
- * Check the arguments.
- */
- if(!gl) {
- fprintf(stderr, "gl_trap_signal: NULL argument(s).\n");
- return 1;
- };
-/*
- * See if the signal has already been registered.
- */
- for(sig=gl->sigs; sig && sig->signo != signo; sig = sig->next)
- ;
-/*
- * If the signal hasn't already been registered, allocate a node for
- * it.
- */
- if(!sig) {
- sig = (GlSignalNode *) _new_FreeListNode(gl->sig_mem);
- if(!sig)
- return 1;
-/*
- * Add the new node to the head of the list.
- */
- sig->next = gl->sigs;
- gl->sigs = sig;
-/*
- * Record the signal number.
- */
- sig->signo = signo;
-/*
- * Create a signal set that includes just this signal.
- */
- sigemptyset(&sig->proc_mask);
- if(sigaddset(&sig->proc_mask, signo) == -1) {
- fprintf(stderr, "gl_trap_signal: sigaddset error: %s\n",
- strerror(errno));
- sig = (GlSignalNode *) _del_FreeListNode(gl->sig_mem, sig);
- return 1;
- };
- };
-/*
- * Record the new signal attributes.
- */
- sig->flags = flags;
- sig->after = after;
- sig->errno_value = errno_value;
- return 0;
-}
-
-/*.......................................................................
- * Remove a signal from the list of signals that gl_get_line() traps.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * signo int The number of the signal to be ignored.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int gl_ignore_signal(GetLine *gl, int signo)
-{
- GlSignalNode *sig; /* The gl->sigs list node of the specified signal */
- GlSignalNode *prev; /* The node that precedes sig in the list */
-/*
- * Check the arguments.
- */
- if(!gl) {
- fprintf(stderr, "gl_ignore_signal: NULL argument(s).\n");
- return 1;
- };
-/*
- * Find the node of the gl->sigs list which records the disposition
- * of the specified signal.
- */
- for(prev=NULL,sig=gl->sigs; sig && sig->signo != signo;
- prev=sig,sig=sig->next)
- ;
- if(sig) {
-/*
- * Remove the node from the list.
- */
- if(prev)
- prev->next = sig->next;
- else
- gl->sigs = sig->next;
-/*
- * Return the node to the freelist.
- */
- sig = (GlSignalNode *) _del_FreeListNode(gl->sig_mem, sig);
- };
- return 0;
-}
-
-/*.......................................................................
- * This function is called when an input line has been completed. It
- * appends the specified newline character, terminates the line,
- * records the line in the history buffer if appropriate, and positions
- * the terminal cursor at the start of the next line.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * newline_char int The newline character to add to the end
- * of the line.
- * archive int True to have the line archived in the
- * history buffer.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int gl_line_ended(GetLine *gl, int newline_char, int archive)
-{
-/*
- * If the newline character is printable, display it.
- */
- if(isprint((int)(unsigned char) newline_char)) {
- if(gl_end_of_line(gl, 1) || gl_add_char_to_line(gl, newline_char))
- return 1;
- } else {
-/*
- * Otherwise just append it to the input line buffer.
- */
- gl->line[gl->ntotal++] = newline_char;
- gl->line[gl->ntotal] = '\0';
- };
-/*
- * Add the line to the history buffer if it was entered with a
- * newline or carriage return character.
- */
- if(archive)
- (void) _glh_add_history(gl->glh, gl->line, 0);
-/*
- * Unless depending on the system-provided line editing, start a new
- * line after the end of the line that has just been entered.
- */
- if(gl->editor != GL_NO_EDITOR) {
- if(gl_end_of_line(gl, 1) ||
- gl_output_raw_string(gl, "\r\n"))
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Return the last signal that was caught by the most recent call to
- * gl_get_line(), or -1 if no signals were caught. This is useful if
- * gl_get_line() returns errno=EINTR and you need to find out what signal
- * caused it to abort.
- *
- * Input:
- * gl GetLine * The resource object of gl_get_line().
- * Output:
- * return int The last signal caught by the most recent
- * call to gl_get_line(), or -1 if no signals
- * were caught.
- */
-int gl_last_signal(const GetLine *gl)
-{
- return gl ? gl->last_signal : -1;
-}
diff --git a/libtecla-1.4.1/getline.h b/libtecla-1.4.1/getline.h
deleted file mode 100644
index 24b0875..0000000
--- a/libtecla-1.4.1/getline.h
+++ /dev/null
@@ -1,88 +0,0 @@
-#ifndef getline_h
-#define getline_h
-
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-/*
- * Set the name of the getline configuration file.
- */
-#define TECLA_CONFIG_FILE "~/.teclarc"
-
-/*
- * The following macro returns non-zero if a character is
- * a control character.
- */
-#define IS_CTRL_CHAR(c) ((unsigned char)(c) < ' ' || (unsigned char)(c)=='\177')
-
-/*
- * The following macro returns non-zero if a character is
- * a meta character.
- */
-#define IS_META_CHAR(c) (((unsigned char)(c) & 0x80) && !isprint((int)(unsigned char)(c)))
-
-/*
- * Return the character that would be produced by pressing the
- * specified key plus the control key.
- */
-#define MAKE_CTRL(c) ((c)=='?' ? '\177' : ((unsigned char)toupper(c) & ~0x40))
-
-/*
- * Return the character that would be produced by pressing the
- * specified key plus the meta key.
- */
-#define MAKE_META(c) ((unsigned char)(c) | 0x80)
-
-/*
- * Given a binary control character, return the character that
- * had to be pressed at the same time as the control key.
- */
-#define CTRL_TO_CHAR(c) (toupper((unsigned char)(c) | 0x40))
-
-/*
- * Given a meta character, return the character that was pressed
- * at the same time as the meta key.
- */
-#define META_TO_CHAR(c) ((unsigned char)(c) & ~0x80)
-
-/*
- * Specify the string of characters other than the alphanumeric characters,
- * that are to be considered parts of words.
- */
-#define GL_WORD_CHARS "_*\?\\[]"
-
-/*
- * Define the escape character, both as a string and as a character.
- */
-#define GL_ESC_STR "\033"
-#define GL_ESC_CHAR '\033'
-
-#endif
diff --git a/libtecla-1.4.1/hash.c b/libtecla-1.4.1/hash.c
deleted file mode 100644
index 89f8245..0000000
--- a/libtecla-1.4.1/hash.c
+++ /dev/null
@@ -1,748 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include
-#include
-#include
-#include
-
-#include "hash.h"
-#include "strngmem.h"
-#include "freelist.h"
-
-/*
- * The following container object contains free-lists to be used
- * for allocation of HashTable containers and nodes.
- */
-struct HashMemory {
- FreeList *hash_memory; /* HashTable free-list */
- FreeList *node_memory; /* HashNode free-list */
- StringMem *string_memory; /* Memory used to allocate hash strings */
-};
-
-/*
- * Define a hash symbol-table entry.
- * See symbol.h for the definition of the Symbol container type.
- */
-typedef struct HashNode HashNode;
-struct HashNode {
- Symbol symbol; /* The symbol stored in the hash-entry */
- HashNode *next; /* The next hash-table entry in a bucket list */
-};
-
-/*
- * Each hash-table bucket contains a linked list of entries that
- * hash to the same bucket.
- */
-typedef struct {
- HashNode *head; /* The head of the bucket hash-node list */
- int count; /* The number of entries in the list */
-} HashBucket;
-
-/*
- * Set the max length of the error-reporting string. There is no point
- * in this being longer than the width of a typical terminal window.
- * In composing error messages, I have assumed that this number is
- * at least 80, so you don't decrease it below this number.
- */
-#define ERRLEN 200
-
-/*
- * A hash-table consists of 'size' hash buckets.
- * Note that the HashTable typedef for this struct is contained in hash.h.
- */
-struct HashTable {
- char errmsg[ERRLEN+1];/* Error-report buffer */
- HashMemory *mem; /* HashTable free-list */
- int internal_mem; /* True if 'mem' was allocated by _new_HashTable() */
- int case_sensitive; /* True if case is significant in lookup keys */
- int size; /* The number of hash buckets */
- HashBucket *bucket; /* An array of 'size' hash buckets */
- int (*keycmp)(const char *, const char *); /* Key comparison function */
- void *app_data; /* Application-provided data */
- HASH_DEL_FN(*del_fn); /* Application-provided 'app_data' destructor */
-};
-
-static HashNode *_del_HashNode(HashTable *hash, HashNode *node);
-static HashNode *_new_HashNode(HashTable *hash, const char *name, int code,
- void (*fn)(void), void *data, SYM_DEL_FN(*del_fn));
-static HashNode *_find_HashNode(HashTable *hash, HashBucket *bucket,
- const char *name, HashNode **prev);
-static HashBucket *_find_HashBucket(HashTable *hash, const char *name);
-static int _ht_lower_strcmp(const char *node_key, const char *look_key);
-static int _ht_strcmp(const char *node_key, const char *look_key);
-
-/*.......................................................................
- * Allocate a free-list for use in allocating hash tables and their nodes.
- *
- * Input:
- * list_count int The number of HashTable containers per free-list
- * block.
- * node_count int The number of HashTable nodes per free-list block.
- * Output:
- * return HashMemory * The new free-list for use in allocating hash tables
- * and their nodes.
- */
-HashMemory *_new_HashMemory(int hash_count, int node_count)
-{
- HashMemory *mem;
-/*
- * Allocate the free-list container.
- */
- mem = (HashMemory *) malloc(sizeof(HashMemory));
- if(!mem) {
- fprintf(stderr, "_new_HashMemory: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Initialize the container at least up to the point at which it can
- * safely be passed to _del_HashMemory().
- */
- mem->hash_memory = NULL;
- mem->node_memory = NULL;
- mem->string_memory = NULL;
-/*
- * Allocate the two free-lists.
- */
- mem->hash_memory = _new_FreeList("_new_HashMemory", sizeof(HashTable),
- hash_count);
- if(!mem->hash_memory)
- return _del_HashMemory(mem, 1);
- mem->node_memory = _new_FreeList("_new_HashMemory", sizeof(HashNode),
- node_count);
- if(!mem->node_memory)
- return _del_HashMemory(mem, 1);
- mem->string_memory = _new_StringMem("_new_HashMemory", 64);
- if(!mem->string_memory)
- return _del_HashMemory(mem, 1);
-/*
- * Return the free-list container.
- */
- return mem;
-}
-
-/*.......................................................................
- * Delete a HashTable free-list. An error will be displayed if the list is
- * still in use and the deletion will be aborted.
- *
- * Input:
- * mem HashMemory * The free-list container to be deleted.
- * force int If force==0 then _del_HashMemory() will complain
- * and refuse to delete the free-list if any
- * of nodes have not been returned to the free-list.
- * If force!=0 then _del_HashMemory() will not check
- * whether any nodes are still in use and will
- * always delete the list.
- * Output:
- * return HashMemory * Always NULL (even if the memory could not be
- * deleted).
- */
-HashMemory *_del_HashMemory(HashMemory *mem, int force)
-{
- const char *caller = "_del_HashMemory";
- if(mem) {
- if(!force && (_busy_FreeListNodes(mem->hash_memory) > 0 ||
- _busy_FreeListNodes(mem->node_memory) > 0)) {
- fprintf(stderr, "%s: Free-list in use.\n", caller);
- return NULL;
- };
- mem->hash_memory = _del_FreeList(caller, mem->hash_memory, force);
- mem->node_memory = _del_FreeList(caller, mem->node_memory, force);
- mem->string_memory = _del_StringMem(caller, mem->string_memory, force);
- free(mem);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Create a new hash table.
- *
- * Input:
- * mem HashMemory * An optional free-list for use in allocating
- * HashTable containers and nodes. See explanation
- * in hash.h. If you are going to allocate more
- * than one hash table, then it will be more
- * efficient to allocate a single free-list for
- * all of them than to force each hash table
- * to allocate its own private free-list.
- * size int The size of the hash table. Best performance
- * will be acheived if this is a prime number.
- * hcase HashCase Specify how symbol case is considered when
- * looking up symbols, from:
- * IGNORE_CASE - Upper and lower case versions
- * of a letter are treated as
- * being identical.
- * HONOUR_CASE - Upper and lower case versions
- * of a letter are treated as
- * being distinct.
- * characters in a lookup name is significant.
- * app_data void * Optional application data to be registered
- * to the table. This is presented to user
- * provided SYM_DEL_FN() symbol destructors along
- * with the symbol data.
- * del_fn() HASH_DEL_FN(*) If you want app_data to be free'd when the
- * hash-table is destroyed, register a suitable
- * destructor function here.
- * Output:
- * return HashTable * The new hash table, or NULL on error.
- */
-HashTable *_new_HashTable(HashMemory *mem, int size, HashCase hcase,
- void *app_data, HASH_DEL_FN(*del_fn))
-{
- HashTable *hash; /* The table to be returned */
- int allocate_mem = !mem; /* True if mem should be internally allocated */
- int i;
-/*
- * Check arguments.
- */
- if(size <= 0) {
- fprintf(stderr, "_new_HashTable: Illegal table size (%d).\n", size);
- return NULL;
- };
-/*
- * Allocate an internal free-list?
- */
- if(allocate_mem) {
- mem = _new_HashMemory(1, 100);
- if(!mem)
- return NULL;
- };
-/*
- * Allocate the container.
- */
- hash = (HashTable *) _new_FreeListNode(mem->hash_memory);
- if(!hash) {
- fprintf(stderr, "_new_HashTable: Insufficient memory.\n");
- if(allocate_mem)
- mem = _del_HashMemory(mem, 1);
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize
- * the container at least up to the point at which it can safely
- * be passed to _del_HashTable().
- */
- hash->errmsg[0] = '\0';
- hash->mem = mem;
- hash->internal_mem = allocate_mem;
- hash->case_sensitive = hcase==HONOUR_CASE;
- hash->size = size;
- hash->bucket = NULL;
- hash->keycmp = hash->case_sensitive ? _ht_strcmp : _ht_lower_strcmp;
- hash->app_data = app_data;
- hash->del_fn = del_fn;
-/*
- * Allocate the array of 'size' hash buckets.
- */
- hash->bucket = (HashBucket *) malloc(sizeof(HashBucket) * size);
- if(!hash->bucket) {
- fprintf(stderr, "_new_HashTable: Insufficient memory for %d buckets.\n",
- size);
- return _del_HashTable(hash);
- };
-/*
- * Initialize the bucket array.
- */
- for(i=0; ibucket + i;
- b->head = NULL;
- b->count = 0;
- };
-/*
- * The table is ready for use - albeit currently empty.
- */
- return hash;
-}
-
-/*.......................................................................
- * Delete a hash-table.
- *
- * Input:
- * hash HashTable * The hash table to be deleted.
- * Output:
- * return HashTable * The deleted hash table (always NULL).
- */
-HashTable *_del_HashTable(HashTable *hash)
-{
- if(hash) {
-/*
- * Clear and delete the bucket array.
- */
- if(hash->bucket) {
- _clear_HashTable(hash);
- free(hash->bucket);
- hash->bucket = NULL;
- };
-/*
- * Delete application data.
- */
- if(hash->del_fn)
- hash->del_fn(hash->app_data);
-/*
- * If the hash table was allocated from an internal free-list, delete
- * it and the hash table by deleting the free-list. Otherwise just
- * return the hash-table to the external free-list.
- */
- if(hash->internal_mem)
- _del_HashMemory(hash->mem, 1);
- else
- hash = (HashTable *) _del_FreeListNode(hash->mem->hash_memory, hash);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Create and install a new entry in a hash table. If an entry with the
- * same name already exists, replace its contents with the new data.
- *
- * Input:
- * hash HashTable * The hash table to insert the symbol into.
- * name const char * The name to tag the entry with.
- * code int An application-specific code to be stored in
- * the entry.
- * fn void (*)(void) An application-specific function to be stored
- * in the entry.
- * data void * An application-specific pointer to data to be
- * associated with the entry, or NULL if not
- * relevant.
- * del_fn SYM_DEL_FN(*) An optional destructor function. When the
- * symbol is deleted this function will be called
- * with the 'code' and 'data' arguments given
- * above. Any application data that was registered
- * to the table via the app_data argument of
- * _new_HashTable() will also be passed.
- * Output:
- * return HashNode * The new entry, or NULL if there was insufficient
- * memory or the arguments were invalid.
- */
-Symbol *_new_HashSymbol(HashTable *hash, const char *name, int code,
- void (*fn)(void), void *data, SYM_DEL_FN(*del_fn))
-{
- HashBucket *bucket; /* The hash-bucket associated with the name */
- HashNode *node; /* The new node */
-/*
- * Check arguments.
- */
- if(!hash || !name)
- return NULL;
-/*
- * Get the hash bucket of the specified name.
- */
- bucket = _find_HashBucket(hash, name);
-/*
- * See if a node with the same name already exists.
- */
- node = _find_HashNode(hash, bucket, name, NULL);
-/*
- * If found, delete its contents by calling the user-supplied
- * destructor function, if provided.
- */
- if(node) {
- if(node->symbol.data && node->symbol.del_fn) {
- node->symbol.data = node->symbol.del_fn(hash->app_data, node->symbol.code,
- node->symbol.data);
- };
-/*
- * Allocate a new node if necessary.
- */
- } else {
- node = _new_HashNode(hash, name, code, fn, data, del_fn);
- if(!node)
- return NULL;
- };
-/*
- * Install the node at the head of the hash-bucket list.
- */
- node->next = bucket->head;
- bucket->head = node;
- bucket->count++;
- return &node->symbol;
-}
-
-/*.......................................................................
- * Remove and delete a given hash-table entry.
- *
- * Input:
- * hash HashTable * The hash table to find the symbol in.
- * name const char * The name of the entry.
- * Output:
- * return HashNode * The deleted hash node (always NULL).
- */
-Symbol *_del_HashSymbol(HashTable *hash, const char *name)
-{
- if(hash && name) {
- HashBucket *bucket = _find_HashBucket(hash, name);
- HashNode *prev; /* The node preceding the located node */
- HashNode *node = _find_HashNode(hash, bucket, name, &prev);
-/*
- * Node found?
- */
- if(node) {
-/*
- * Remove the node from the bucket list.
- */
- if(prev) {
- prev->next = node->next;
- } else {
- bucket->head = node->next;
- };
-/*
- * Record the loss of a node.
- */
- bucket->count--;
-/*
- * Delete the node.
- */
- (void) _del_HashNode(hash, node);
- };
- };
- return NULL;
-}
-
-/*.......................................................................
- * Look up a symbol in the hash table.
- *
- * Input:
- * hash HashTable * The table to look up the string in.
- * name const char * The name of the symbol to look up.
- * Output:
- * return Symbol * The located hash-table symbol, or NULL if not
- * found.
- */
-Symbol *_find_HashSymbol(HashTable *hash, const char *name)
-{
- HashBucket *bucket; /* The hash-table bucket associated with name[] */
- HashNode *node; /* The hash-table node of the requested symbol */
-/*
- * Check arguments.
- */
- if(!hash)
- return NULL;
-/*
- * Nothing to lookup?
- */
- if(!name)
- return NULL;
-/*
- * Hash the name to a hash-table bucket.
- */
- bucket = _find_HashBucket(hash, name);
-/*
- * Find the bucket entry that exactly matches the name.
- */
- node = _find_HashNode(hash, bucket, name, NULL);
- if(!node)
- return NULL;
- return &node->symbol;
-}
-
-/*.......................................................................
- * Private function used to allocate a hash-table node.
- * The caller is responsible for checking that the specified symbol
- * is unique and for installing the returned entry in the table.
- *
- * Input:
- * hash HashTable * The table to allocate the node for.
- * name const char * The name of the new entry.
- * code int A user-supplied context code.
- * fn void (*)(void) A user-supplied function pointer.
- * data void * A user-supplied data pointer.
- * del_fn SYM_DEL_FN(*) An optional 'data' destructor function.
- * Output:
- * return HashNode * The new node, or NULL on error.
- */
-static HashNode *_new_HashNode(HashTable *hash, const char *name, int code,
- void (*fn)(void), void *data, SYM_DEL_FN(*del_fn))
-{
- HashNode *node; /* The new node */
-/*
- * Allocate the new node from the free list.
- */
- node = (HashNode *) _new_FreeListNode(hash->mem->node_memory);
- if(!node)
- return NULL;
-/*
- * Before attempting any operation that might fail, initialize the
- * contents of 'node' at least up to the point at which it can be
- * safely passed to _del_HashNode().
- */
- node->symbol.name = NULL;
- node->symbol.code = code;
- node->symbol.fn = fn;
- node->symbol.data = data;
- node->symbol.del_fn = del_fn;
- node->next = NULL;
-/*
- * Allocate a copy of 'name'.
- */
- node->symbol.name = _new_StringMemString(hash->mem->string_memory,
- strlen(name) + 1);
- if(!node->symbol.name)
- return _del_HashNode(hash, node);
-/*
- * If character-case is insignificant in the current table, convert the
- * name to lower case while copying it.
- */
- if(hash->case_sensitive) {
- strcpy(node->symbol.name, name);
- } else {
- const char *src = name;
- char *dst = node->symbol.name;
- for( ; *src; src++,dst++)
- *dst = tolower(*src);
- *dst = '\0';
- };
- return node;
-}
-
-/*.......................................................................
- * Private function used to delete a hash-table node.
- * The node must have been removed from its list before calling this
- * function.
- *
- * Input:
- * hash HashTable * The table for which the node was originally
- * allocated.
- * node HashNode * The node to be deleted.
- * Output:
- * return HashNode * The deleted node (always NULL).
- */
-static HashNode *_del_HashNode(HashTable *hash, HashNode *node)
-{
- if(node) {
- node->symbol.name = _del_StringMemString(hash->mem->string_memory,
- node->symbol.name);
-/*
- * Call the user-supplied data-destructor if provided.
- */
- if(node->symbol.data && node->symbol.del_fn)
- node->symbol.data = node->symbol.del_fn(hash->app_data,
- node->symbol.code,
- node->symbol.data);
-/*
- * Return the node to the free-list.
- */
- node->next = NULL;
- node = (HashNode *) _del_FreeListNode(hash->mem->node_memory, node);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Private function to locate the hash bucket associated with a given
- * name.
- *
- * This uses a hash-function described in the dragon-book
- * ("Compilers - Principles, Techniques and Tools", by Aho, Sethi and
- * Ullman; pub. Adison Wesley) page 435.
- *
- * Input:
- * hash HashTable * The table to look up the string in.
- * name const char * The name of the symbol to look up.
- * Output:
- * return HashBucket * The located hash-bucket.
- */
-static HashBucket *_find_HashBucket(HashTable *hash, const char *name)
-{
- unsigned const char *kp;
- unsigned long h = 0L;
- if(hash->case_sensitive) {
- for(kp=(unsigned const char *) name; *kp; kp++)
- h = 65599UL * h + *kp; /* 65599 is a prime close to 2^16 */
- } else {
- for(kp=(unsigned const char *) name; *kp; kp++)
- h = 65599UL * h + tolower((int)*kp); /* 65599 is a prime close to 2^16 */
- };
- return hash->bucket + (h % hash->size);
-}
-
-/*.......................................................................
- * Search for a given name in the entries of a given bucket.
- *
- * Input:
- * hash HashTable * The hash-table being searched.
- * bucket HashBucket * The bucket to search (use _find_HashBucket()).
- * name const char * The name to search for.
- * Output:
- * prev HashNode ** If prev!=NULL then the pointer to the node
- * preceding the located node in the list will
- * be recorded in *prev. This will be NULL either
- * if the name is not found or the located node is
- * at the head of the list of entries.
- * return HashNode * The located hash-table node, or NULL if not
- * found.
- */
-static HashNode *_find_HashNode(HashTable *hash, HashBucket *bucket,
- const char *name, HashNode **prev)
-{
- HashNode *last; /* The previously searched node */
- HashNode *node; /* The node that is being searched */
-/*
- * Search the list for a node containing the specified name.
- */
- for(last=NULL, node=bucket->head;
- node && hash->keycmp(node->symbol.name, name)!=0;
- last = node, node=node->next)
- ;
- if(prev)
- *prev = node ? last : NULL;
- return node;
-}
-
-/*.......................................................................
- * When hash->case_sensitive is zero this function is called
- * in place of strcmp(). In such cases the hash-table names are stored
- * as lower-case versions of the original strings so this function
- * performs the comparison against lower-case copies of the characters
- * of the string being compared.
- *
- * Input:
- * node_key const char * The lower-case hash-node key being compared
- * against.
- * look_key const char * The lookup key.
- * Output:
- * return int <0 if node_key < look_key.
- * 0 if node_key == look_key.
- * >0 if node_key > look_key.
- */
-static int _ht_lower_strcmp(const char *node_key, const char *look_key)
-{
- int cn; /* The latest character from node_key[] */
- int cl; /* The latest character from look_key[] */
- do {
- cn = *node_key++;
- cl = *look_key++;
- } while(cn && cn==tolower(cl));
- return cn - tolower(cl);
-}
-
-/*.......................................................................
- * This is a wrapper around strcmp for comparing hash-keys in a case
- * sensitive manner. The reason for having this wrapper, instead of using
- * strcmp() directly, is to make some C++ compilers happy. The problem
- * is that when the library is compiled with a C++ compiler, the
- * declaration of the comparison function is a C++ declaration, whereas
- * strcmp() is a pure C function and thus although it appears to have the
- * same declaration, the compiler disagrees.
- *
- * Input:
- * node_key char * The lower-case hash-node key being compared against.
- * look_key char * The lookup key.
- * Output:
- * return int <0 if node_key < look_key.
- * 0 if node_key == look_key.
- * >0 if node_key > look_key.
- */
-static int _ht_strcmp(const char *node_key, const char *look_key)
-{
- return strcmp(node_key, look_key);
-}
-
-/*.......................................................................
- * Empty a hash-table by deleting all of its entries.
- *
- * Input:
- * hash HashTable * The hash table to clear.
- * Output:
- * return int 0 - OK.
- * 1 - Invalid arguments.
- */
-int _clear_HashTable(HashTable *hash)
-{
- int i;
-/*
- * Check the arguments.
- */
- if(!hash)
- return 1;
-/*
- * Clear the contents of the bucket array.
- */
- for(i=0; isize; i++) {
- HashBucket *bucket = hash->bucket + i;
-/*
- * Delete the list of active hash nodes from the bucket.
- */
- HashNode *node = bucket->head;
- while(node) {
- HashNode *next = node->next;
- (void) _del_HashNode(hash, node);
- node = next;
- };
-/*
- * Mark the bucket as empty.
- */
- bucket->head = NULL;
- bucket->count = 0;
- };
- return 0;
-}
-
-/*.......................................................................
- * Execute a given function on each entry of a hash table, returning
- * before completion if the the specified function returns non-zero.
- *
- * Input:
- * hash HashTable * The table to traverse.
- * scan_fn HASH_SCAN_FN(*) The function to call.
- * context void * Optional caller-specific context data
- * to be passed to scan_fn().
- * Output:
- * return int 0 - OK.
- * 1 - Either the arguments were invalid, or
- * scan_fn() returned non-zero at some
- * point.
- */
-int _scan_HashTable(HashTable *hash, HASH_SCAN_FN(*scan_fn), void *context)
-{
- int i;
-/*
- * Check the arguments.
- */
- if(!hash || !scan_fn)
- return 1;
-/*
- * Iterate through the buckets of the table.
- */
- for(i=0; isize; i++) {
- HashBucket *bucket = hash->bucket + i;
- HashNode *node;
-/*
- * Iterate through the list of symbols that fall into bucket i,
- * passing each one to the caller-specified function.
- */
- for(node=bucket->head; node; node=node->next) {
- if(scan_fn(&node->symbol, context))
- return 1;
- };
- };
- return 0;
-}
diff --git a/libtecla-1.4.1/hash.h b/libtecla-1.4.1/hash.h
deleted file mode 100644
index 13c0a2b..0000000
--- a/libtecla-1.4.1/hash.h
+++ /dev/null
@@ -1,157 +0,0 @@
-#ifndef hash_h
-#define hash_h
-
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-/*
- * The following macro can be used to prototype or define a
- * function that deletes the data of a symbol-table entry.
- *
- * Input:
- * app_data void * The _new_HashTable() app_data argument.
- * code int The Symbol::code argument.
- * sym_data void * The Symbol::data argument to be deleted.
- * Output:
- * return void * The deleted data (always return NULL).
- */
-#define SYM_DEL_FN(fn) void *(fn)(void *app_data, int code, void *sym_data)
-
-/*
- * The following macro can be used to prototype or define a
- * function that deletes the application-data of a hash-table.
- *
- * Input:
- * data void * The _new_HashTable() 'app_data' argument to be
- * deleted.
- * Output:
- * return void * The deleted data (always return NULL).
- */
-#define HASH_DEL_FN(fn) void *(fn)(void *app_data)
-
-/*
- * The following is a container for recording the context
- * of a symbol in a manner that is independant of the particular
- * symbol-table implementation. Each hash-table entry contains
- * the following user supplied parameters:
- *
- * 1. An optional integral parameter 'code'. This is useful for
- * enumerating a symbol or for describing what type of data
- * or function is stored in the symbol.
- *
- * 2. An optional generic function pointer. This is useful for
- * associating functions with names. The user is responsible
- * for casting between the generic function type and the
- * actual function type. The code field could be used to
- * enumerate what type of function to cast to.
- *
- * 3. An optional generic pointer to a static or heap-allocated
- * object. It is up to the user to cast this back to the
- * appropriate object type. Again, the code field could be used
- * to describe what type of object is stored there.
- * If the object is dynamically allocated and should be discarded
- * when the symbol is deleted from the symbol table, send a
- * destructor function to have it deleted automatically.
- */
-typedef struct {
- char *name; /* The name of the symbol */
- int code; /* Application supplied integral code */
- void (*fn)(void); /* Application supplied generic function */
- void *data; /* Application supplied context data */
- SYM_DEL_FN(*del_fn); /* Data destructor function */
-} Symbol;
-
-/*
- * HashNode's and HashTable's are small objects. Separately allocating
- * many such objects would normally cause memory fragmentation. To
- * counter this, HashMemory objects are used. These contain
- * dedicated free-lists formed from large dynamically allocated arrays
- * of objects. One HashMemory object can be shared between multiple hash
- * tables (within a single thread).
- */
-typedef struct HashMemory HashMemory;
-
- /* Create a free-list for allocation of hash tables and their nodes */
-
-HashMemory *_new_HashMemory(int hash_count, int node_count);
-
- /* Delete a redundant free-list if not being used */
-
-HashMemory *_del_HashMemory(HashMemory *mem, int force);
-
-/*
- * Declare an alias for the private HashTable structure defined in
- * hash.c.
- */
-typedef struct HashTable HashTable;
-
-/*
- * Enumerate case-sensitivity options.
- */
-typedef enum {
- IGNORE_CASE, /* Ignore case when looking up symbols */
- HONOUR_CASE /* Honor case when looking up symbols */
-} HashCase;
-
- /* Create a new hash-table */
-
-HashTable *_new_HashTable(HashMemory *mem, int size, HashCase hcase,
- void *app_data, HASH_DEL_FN(*del_fn));
-
- /* Delete a reference to a hash-table */
-
-HashTable *_del_HashTable(HashTable *hash);
-
- /* Add an entry to a hash table */
-
-Symbol *_new_HashSymbol(HashTable *hash, const char *key, int code,
- void (*fn)(void), void *data, SYM_DEL_FN(*del_fn));
-
- /* Remove and delete all the entries in a given hash table */
-
-int _clear_HashTable(HashTable *hash);
-
- /* Remove and delete a given hash-table entry */
-
-Symbol *_del_HashSymbol(HashTable *hash, const char *key);
-
- /* Lookup a given hash-table entry */
-
-Symbol *_find_HashSymbol(HashTable *hash, const char *key);
-
- /* Execute a given function on each entry of a hash table, returning */
- /* before completion if the specified function returns non-zero. */
-
-#define HASH_SCAN_FN(fn) int (fn)(Symbol *sym, void *context)
-
-int _scan_HashTable(HashTable *hash, HASH_SCAN_FN(*scan_fn), void *context);
-
-#endif
diff --git a/libtecla-1.4.1/history.c b/libtecla-1.4.1/history.c
deleted file mode 100644
index 5a8d94f..0000000
--- a/libtecla-1.4.1/history.c
+++ /dev/null
@@ -1,2003 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include
-#include
-#include
-#include
-#include
-#include
-
-#include "history.h"
-#include "freelist.h"
-
-/*
- * GlLineNode's record the location and length of historical lines in
- * a buffer array.
- */
-typedef struct GlLineNode GlLineNode;
-struct GlLineNode {
- long id; /* The unique identifier of this history line */
- time_t timestamp; /* The time at which the line was archived */
- unsigned group; /* The identifier of the history group to which the */
- /* the line belongs. */
- GlLineNode *next; /* The next youngest line in the list */
- GlLineNode *prev; /* The next oldest line in the list */
- int start; /* The start index of the line in the buffer */
- int nchar; /* The total length of the line, including the '\0' */
-};
-
-/*
- * The number of GlLineNode elements per freelist block.
- */
-#define LINE_NODE_BLK 100
-
-/*
- * Lines are organised in the buffer from oldest to newest. The
- * positions of the lines are recorded in a doubly linked list
- * of GlLineNode objects.
- */
-typedef struct {
- FreeList *node_mem; /* A freelist of GlLineNode objects */
- GlLineNode *head; /* The head of the list of lines */
- GlLineNode *tail; /* The tail of the list of lines */
-} GlLineList;
-
-/*
- * All elements of the history mechanism are recorded in an object of
- * the following type.
- */
-struct GlHistory {
- char *buffer; /* A circular buffer used to record historical input */
- /* lines. */
- size_t buflen; /* The length of the buffer array */
- GlLineList list; /* A list of the start of lines in buffer[] */
- GlLineNode *recall; /* The last line recalled, or NULL if no recall */
- /* session is currently active. */
- GlLineNode *id_node;/* The node at which the last ID search terminated */
- const char *prefix; /* A pointer to the line containing the prefix that */
- /* is being searched for. */
- int prefix_len; /* The length of the prefix */
- unsigned long seq; /* The next ID to assign to a line node */
- unsigned group; /* The identifier of the current history group */
- int nline; /* The number of lines currently in the history list */
- int max_lines; /* Either -1 or a ceiling on the number of lines */
- int enable; /* If false, ignore history additions and lookups */
-};
-
-static char *_glh_restore_line(GlHistory *glh, char *line, size_t dim);
-static int _glh_cant_load_history(GlHistory *glh, const char *filename,
- int lineno, const char *message, FILE *fp);
-static int _glh_write_timestamp(FILE *fp, time_t timestamp);
-static int _glh_decode_timestamp(char *string, char **endp, time_t *t);
-static void _glh_discard_node(GlHistory *glh, GlLineNode *node);
-static GlLineNode *_glh_find_id(GlHistory *glh, GlhLineID id);
-
-/*.......................................................................
- * Create a line history maintenance object.
- *
- * Input:
- * buflen size_t The number of bytes to allocate to the circular
- * buffer that is used to record all of the
- * most recent lines of user input that will fit.
- * If buflen==0, no buffer will be allocated.
- * Output:
- * return GlHistory * The new object, or NULL on error.
- */
-GlHistory *_new_GlHistory(size_t buflen)
-{
- GlHistory *glh; /* The object to be returned */
-/*
- * Allocate the container.
- */
- glh = (GlHistory *) malloc(sizeof(GlHistory));
- if(!glh) {
- fprintf(stderr, "_new_GlHistory: Insufficient memory.\n");
- return NULL;
- };
-/*
- * Before attempting any operation that might fail, initialize the
- * container at least up to the point at which it can safely be passed
- * to _del_GlHistory().
- */
- glh->buffer = NULL;
- glh->buflen = buflen;
- glh->list.node_mem = NULL;
- glh->list.head = NULL;
- glh->list.tail = NULL;
- glh->recall = NULL;
- glh->id_node = NULL;
- glh->prefix = NULL;
- glh->prefix_len = 0;
- glh->seq = 0;
- glh->group = 0;
- glh->nline = 0;
- glh->max_lines = -1;
- glh->enable = 1;
-/*
- * Allocate the buffer, if required.
- */
- if(buflen > 0) {
- glh->buffer = (char *) malloc(sizeof(char) * buflen);
- if(!glh->buffer) {
- fprintf(stderr, "_new_GlHistory: Insufficient memory.\n");
- return _del_GlHistory(glh);
- };
- };
-/*
- * Allocate the GlLineNode freelist.
- */
- glh->list.node_mem = _new_FreeList("_new_GlHistory", sizeof(GlLineNode),
- LINE_NODE_BLK);
- if(!glh->list.node_mem)
- return _del_GlHistory(glh);
- return glh;
-}
-
-/*.......................................................................
- * Delete a GlHistory object.
- *
- * Input:
- * glh GlHistory * The object to be deleted.
- * Output:
- * return GlHistory * The deleted object (always NULL).
- */
-GlHistory *_del_GlHistory(GlHistory *glh)
-{
- if(glh) {
-/*
- * Delete the buffer.
- */
- if(glh->buffer) {
- free(glh->buffer);
- glh->buffer = NULL;
- };
-/*
- * Delete the freelist of GlLineNode's.
- */
- glh->list.node_mem = _del_FreeList("_del_GlHistory", glh->list.node_mem, 1);
-/*
- * The contents of the list were deleted by deleting the freelist.
- */
- glh->list.head = NULL;
- glh->list.tail = NULL;
-/*
- * Delete the container.
- */
- free(glh);
- };
- return NULL;
-}
-
-/*.......................................................................
- * Add a new line to the end of the history buffer, wrapping round to the
- * start of the buffer if needed.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The line to be archived.
- * force int Unless this flag is non-zero, empty lines and
- * lines which match the previous line in the history
- * buffer, aren't archived. This flag requests that
- * the line be archived regardless.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_add_history(GlHistory *glh, const char *line, int force)
-{
- GlLineList *list; /* The line location list */
- int nchar; /* The number of characters needed to record the line */
- GlLineNode *node; /* The new line location list node */
- int empty; /* True if the string is empty */
- const char *nlptr;/* A pointer to a newline character in line[] */
- int i;
-/*
- * Check the arguments.
- */
- if(!glh || !line)
- return 1;
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return 0;
-/*
- * Get the line location list.
- */
- list = &glh->list;
-/*
- * Cancel any ongoing search.
- */
- if(_glh_cancel_search(glh))
- return 1;
-/*
- * See how much buffer space will be needed to record the line?
- *
- * If the string contains a terminating newline character, arrange to
- * have the archived line NUL terminated at this point.
- */
- nlptr = strchr(line, '\n');
- if(nlptr)
- nchar = (nlptr - line) + 1;
- else
- nchar = strlen(line) + 1;
-/*
- * If the line is too big to fit in the buffer, truncate it.
- */
- if(nchar > glh->buflen)
- nchar = glh->buflen;
-/*
- * Is the line empty?
- */
- empty = 1;
- for(i=0; itail && strlen(glh->buffer + list->tail->start) == nchar-1 &&
- strncmp(line, glh->buffer + list->tail->start, nchar-1)==0)
- return 0;
-/*
- * Allocate the list node that will record the line location.
- */
- node = (GlLineNode *) _new_FreeListNode(list->node_mem);
- if(!node)
- return 1;
-/*
- * Is the buffer empty?
- */
- if(!list->head) {
-/*
- * Place the line at the beginning of the buffer.
- */
- strncpy(glh->buffer, line, nchar);
- glh->buffer[nchar-1] = '\0';
-/*
- * Record the location of the line.
- */
- node->start = 0;
-/*
- * The buffer has one or more lines in it.
- */
- } else {
-/*
- * Place the start of the new line just after the most recently
- * added line.
- */
- int start = list->tail->start + list->tail->nchar;
-/*
- * If there is insufficient room between the end of the most
- * recently added line and the end of the buffer, we place the
- * line at the beginning of the buffer. To make as much space
- * as possible for this line, we first delete any old lines
- * at the end of the buffer, then shift the remaining contents
- * of the buffer to the end of the buffer.
- */
- if(start + nchar >= glh->buflen) {
- GlLineNode *last; /* The last line in the buffer */
- GlLineNode *ln; /* A member of the list of line locations */
- int shift; /* The shift needed to move the contents of the */
- /* buffer to its end. */
-/*
- * Delete any old lines between the most recent line and the end of the
- * buffer.
- */
- while(list->head && list->head->start > list->tail->start)
- _glh_discard_node(glh, list->head);
-/*
- * Find the line that is nearest the end of the buffer.
- */
- last = NULL;
- for(ln=list->head; ln; ln=ln->next) {
- if(!last || ln->start > last->start)
- last = ln;
- };
-/*
- * How big a shift is needed to move the existing contents of the
- * buffer to the end of the buffer?
- */
- shift = last ? (glh->buflen - (last->start + last->nchar)) : 0;
-/*
- * Is any shift needed?
- */
- if(shift > 0) {
-/*
- * Move the buffer contents to the end of the buffer.
- */
- memmove(glh->buffer + shift, glh->buffer, glh->buflen - shift);
-/*
- * Update the listed locations to reflect the shift.
- */
- for(ln=list->head; ln; ln=ln->next)
- ln->start += shift;
- };
-/*
- * The new line should now be located at the start of the buffer.
- */
- start = 0;
- };
-/*
- * Make space for the new line at the beginning of the buffer by
- * deleting the oldest lines. This just involves removing them
- * from the list of used locations. Also enforce the current
- * maximum number of lines.
- */
- while(list->head &&
- ((list->head->start >= start && list->head->start - start < nchar) ||
- (glh->max_lines >= 0 && glh->nline>=glh->max_lines))) {
- _glh_discard_node(glh, list->head);
- };
-/*
- * Copy the new line into the buffer.
- */
- memcpy(glh->buffer + start, line, nchar);
- glh->buffer[start + nchar - 1] = '\0';
-/*
- * Record its location.
- */
- node->start = start;
- };
-/*
- * Append the line location node to the end of the list.
- */
- node->id = glh->seq++;
- node->timestamp = time(NULL);
- node->group = glh->group;
- node->nchar = nchar;
- node->next = NULL;
- node->prev = list->tail;
- if(list->tail)
- list->tail->next = node;
- else
- list->head = node;
- list->tail = node;
- glh->nline++;
- return 0;
-}
-
-/*.......................................................................
- * Recall the next oldest line that has the search prefix last recorded
- * by _glh_search_prefix().
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The input line buffer. On input this should contain
- * the current input line, and on output, if anything
- * was found, its contents will have been replaced
- * with the matching line.
- * dim size_t The allocated dimensions of the line buffer.
- * Output:
- * return char * A pointer to line[0], or NULL if not found.
- */
-char *_glh_find_backwards(GlHistory *glh, char *line, size_t dim)
-{
- GlLineNode *node; /* The line location node being checked */
- int first; /* True if this is the start of a new search */
-/*
- * Check the arguments.
- */
- if(!glh || !line) {
- fprintf(stderr, "_glh_find_backwards: NULL argument(s).\n");
- return NULL;
- };
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return NULL;
-/*
- * Check the line dimensions.
- */
- if(dim < strlen(line) + 1) {
- fprintf(stderr,
- "_glh_find_backwards: 'dim' inconsistent with strlen(line) contents.\n");
- return NULL;
- };
-/*
- * Is this the start of a new search?
- */
- first = glh->recall==NULL;
-/*
- * If this is the first search backwards, save the current line
- * for potential recall later, and mark it as the last line
- * recalled.
- */
- if(first) {
- if(_glh_add_history(glh, line, 1))
- return NULL;
- glh->recall = glh->list.tail;
- };
-/*
- * If there is no search prefix, the prefix last set by glh_search_prefix()
- * doesn't exist in the history buffer.
- */
- if(!glh->prefix)
- return NULL;
-/*
- * From where should we start the search?
- */
- if(glh->recall)
- node = glh->recall->prev;
- else
- node = glh->list.tail;
-/*
- * Search backwards through the list for the first match with the
- * prefix string.
- */
- for( ; node &&
- (node->group != glh->group ||
- strncmp(glh->buffer + node->start, glh->prefix, glh->prefix_len) != 0);
- node = node->prev)
- ;
-/*
- * Was a matching line found?
- */
- if(node) {
-/*
- * Recall the found node as the starting point for subsequent
- * searches.
- */
- glh->recall = node;
-/*
- * Copy the matching line into the provided line buffer.
- */
- strncpy(line, glh->buffer + node->start, dim);
- line[dim-1] = '\0';
- return line;
- };
-/*
- * No match was found.
- */
- return NULL;
-}
-
-/*.......................................................................
- * Recall the next newest line that has the search prefix last recorded
- * by _glh_search_prefix().
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The input line buffer. On input this should contain
- * the current input line, and on output, if anything
- * was found, its contents will have been replaced
- * with the matching line.
- * dim size_t The allocated dimensions of the line buffer.
- * Output:
- * return char * The line requested, or NULL if no matching line
- * was found.
- */
-char *_glh_find_forwards(GlHistory *glh, char *line, size_t dim)
-{
- GlLineNode *node; /* The line location node being checked */
-/*
- * Check the arguments.
- */
- if(!glh || !line) {
- fprintf(stderr, "_glh_find_forwards: NULL argument(s).\n");
- return NULL;
- };
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return NULL;
-/*
- * Check the line dimensions.
- */
- if(dim < strlen(line) + 1) {
- fprintf(stderr,
- "_glh_find_forwards: 'dim' inconsistent with strlen(line) contents.\n");
- return NULL;
- };
-/*
- * From where should we start the search?
- */
- if(glh->recall)
- node = glh->recall->next;
- else
- return NULL;
-/*
- * If there is no search prefix, the prefix last set by glh_search_prefix()
- * doesn't exist in the history buffer.
- */
- if(!glh->prefix)
- return NULL;
-/*
- * Search forwards through the list for the first match with the
- * prefix string.
- */
- for( ; node &&
- (node->group != glh->group ||
- strncmp(glh->buffer + node->start, glh->prefix, glh->prefix_len) != 0);
- node = node->next)
- ;
-/*
- * Was a matching line found?
- */
- if(node) {
-/*
- * Did we hit the line that was originally being edited when the
- * current history traversal started?
- */
- if(node == glh->list.tail)
- return _glh_restore_line(glh, line, dim);
-/*
- * Copy the matching line into the provided line buffer.
- */
- strncpy(line, glh->buffer + node->start, dim);
- line[dim-1] = '\0';
-/*
- * Record the starting point of the next search.
- */
- glh->recall = node;
-/*
- * Return the matching line to the user.
- */
- return line;
- };
-/*
- * No match was found.
- */
- return NULL;
-}
-
-/*.......................................................................
- * If a search is in progress, cancel it.
- *
- * This involves discarding the line that was temporarily saved by
- * _glh_find_backwards() when the search was originally started,
- * and reseting the search iteration pointer to NULL.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_cancel_search(GlHistory *glh)
-{
-/*
- * Check the arguments.
- */
- if(!glh) {
- fprintf(stderr, "_glh_cancel_search: NULL argument(s).\n");
- return 1;
- };
-/*
- * If there wasn't a search in progress, do nothing.
- */
- if(!glh->recall)
- return 0;
-/*
- * Delete the node of the preserved line.
- */
- _glh_discard_node(glh, glh->list.tail);
-/*
- * Reset the search pointers.
- */
- glh->recall = NULL;
- glh->prefix = "";
- glh->prefix_len = 0;
- return 0;
-}
-
-/*.......................................................................
- * Set the prefix of subsequent history searches.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The command line who's prefix is to be used.
- * prefix_len int The length of the prefix.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_search_prefix(GlHistory *glh, const char *line, int prefix_len)
-{
- GlLineNode *node; /* The line location node being checked */
-/*
- * Check the arguments.
- */
- if(!glh) {
- fprintf(stderr, "_glh_search_prefix: NULL argument(s).\n");
- return 1;
- };
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return 0;
-/*
- * Record a zero length search prefix?
- */
- if(prefix_len <= 0) {
- glh->prefix_len = 0;
- glh->prefix = "";
- return 0;
- };
-/*
- * Record the length of the new search prefix.
- */
- glh->prefix_len = prefix_len;
-/*
- * If any history line starts with the specified prefix, record a
- * pointer to it for comparison in subsequent searches. If the prefix
- * doesn't match any of the lines, then simply record NULL to indicate
- * that there is no point in searching. Note that _glh_add_history()
- * clears this pointer by calling _glh_cancel_search(), so there is
- * no danger of it being used after the buffer has been modified.
- */
- for(node = glh->list.tail ; node &&
- (node->group != glh->group ||
- strncmp(glh->buffer + node->start, line, prefix_len) != 0);
- node = node->prev)
- ;
-/*
- * If a matching line was found record it for use as the search
- * prefix.
- */
- glh->prefix = node ? glh->buffer + node->start : NULL;
- return 0;
-}
-
-/*.......................................................................
- * Recall the oldest recorded line.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The input line buffer. On input this should contain
- * the current input line, and on output, its contents
- * will have been replaced with the oldest line.
- * dim size_t The allocated dimensions of the line buffer.
- * Output:
- * return char * A pointer to line[0], or NULL if not found.
- */
-char *_glh_oldest_line(GlHistory *glh, char *line, size_t dim)
-{
- GlLineNode *node; /* The line location node being checked */
- int first; /* True if this is the start of a new search */
-/*
- * Check the arguments.
- */
- if(!glh || !line) {
- fprintf(stderr, "_glh_oldest_line: NULL argument(s).\n");
- return NULL;
- };
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return NULL;
-/*
- * Check the line dimensions.
- */
- if(dim < strlen(line) + 1) {
- fprintf(stderr,
- "_glh_oldest_line: 'dim' inconsistent with strlen(line) contents.\n");
- return NULL;
- };
-/*
- * Is this the start of a new search?
- */
- first = glh->recall==NULL;
-/*
- * If this is the first search backwards, save the current line
- * for potential recall later, and mark it as the last line
- * recalled.
- */
- if(first) {
- if(_glh_add_history(glh, line, 1))
- return NULL;
- glh->recall = glh->list.tail;
- };
-/*
- * Locate the oldest line that belongs to the current group.
- */
- for(node=glh->list.head; node && node->group != glh->group;
- node = node->next)
- ;
-/*
- * No line found?
- */
- if(!node)
- return NULL;
-/*
- * Record the above node as the starting point for subsequent
- * searches.
- */
- glh->recall = node;
-/*
- * Copy the recalled line into the provided line buffer.
- */
- strncpy(line, glh->buffer + node->start, dim);
- line[dim-1] = '\0';
- return line;
-}
-
-/*.......................................................................
- * Recall the line that was being entered when the search started.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The input line buffer. On input this should contain
- * the current input line, and on output, its contents
- * will have been replaced with the line that was
- * being entered when the search was started.
- * dim size_t The allocated dimensions of the line buffer.
- * Output:
- * return char * A pointer to line[0], or NULL if not found.
- */
-char *_glh_current_line(GlHistory *glh, char *line, size_t dim)
-{
-/*
- * Check the arguments.
- */
- if(!glh || !line) {
- fprintf(stderr, "_glh_current_line: NULL argument(s).\n");
- return NULL;
- };
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return NULL;
-/*
- * Check the line dimensions.
- */
- if(dim < strlen(line) + 1) {
- fprintf(stderr,
- "_glh_current_line: 'dim' inconsistent with strlen(line) contents.\n");
- return NULL;
- };
-/*
- * Restore the original line.
- */
- return _glh_restore_line(glh, line, dim);
-}
-
-/*.......................................................................
- * Remove the line that was originally being edited when the history
- * traversal was started, from its saved position in the history list,
- * and place it in the provided line buffer.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * line char * The input line buffer. On input this should contain
- * the current input line, and on output, its contents
- * will have been replaced with the saved line.
- * dim size_t The allocated dimensions of the line buffer.
- * Output:
- * return char * A pointer to line[0], or NULL if not found.
- */
-static char *_glh_restore_line(GlHistory *glh, char *line, size_t dim)
-{
- GlLineNode *tail; /* The tail node to be discarded */
-/*
- * If there wasn't a search in progress, do nothing.
- */
- if(!glh->recall)
- return NULL;
-/*
- * Get the list node that is to be removed.
- */
- tail = glh->list.tail;
-/*
- * If a pointer to the saved line is being used to record the
- * current search prefix, reestablish the search prefix, to
- * have it recorded by another history line if possible.
- */
- if(glh->prefix == glh->buffer + tail->start)
- (void) _glh_search_prefix(glh, glh->buffer + tail->start, glh->prefix_len);
-/*
- * Copy the recalled line into the input-line buffer.
- */
- strncpy(line, glh->buffer + tail->start, dim);
- line[dim-1] = '\0';
-/*
- * Discard the line-location node.
- */
- _glh_discard_node(glh, tail);
-/*
- * Mark the search as ended.
- */
- glh->recall = NULL;
- return line;
-}
-
-/*.......................................................................
- * Query the id of a history line offset by a given number of lines from
- * the one that is currently being recalled. If a recall session isn't
- * in progress, or the offset points outside the history list, 0 is
- * returned.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * offset int The line offset (0 for the current line, < 0
- * for an older line, > 0 for a newer line.
- * Output:
- * return GlhLineID The identifier of the line that is currently
- * being recalled, or 0 if no recall session is
- * currently in progress.
- */
-GlhLineID _glh_line_id(GlHistory *glh, int offset)
-{
- GlLineNode *node; /* The line location node being checked */
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return 0;
-/*
- * Search forward 'offset' lines to find the required line.
- */
- if(offset >= 0) {
- for(node=glh->recall; node && offset != 0; node=node->next) {
- if(node->group == glh->group)
- offset--;
- };
- } else {
- for(node=glh->recall; node && offset != 0; node=node->prev) {
- if(node->group == glh->group)
- offset++;
- };
- };
- return node ? node->id : 0;
-}
-
-/*.......................................................................
- * Recall a line by its history buffer ID. If the line is no longer
- * in the buffer, or the id is zero, NULL is returned.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * id GlhLineID The ID of the line to be returned.
- * line char * The input line buffer. On input this should contain
- * the current input line, and on output, its contents
- * will have been replaced with the saved line.
- * dim size_t The allocated dimensions of the line buffer.
- * Output:
- * return char * A pointer to line[0], or NULL if not found.
- */
-char *_glh_recall_line(GlHistory *glh, GlhLineID id, char *line, size_t dim)
-{
- GlLineNode *node; /* The line location node being checked */
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->buffer || glh->max_lines == 0)
- return NULL;
-/*
- * If we are starting a new recall session, save the current line
- * for potential recall later.
- */
- if(!glh->recall && _glh_add_history(glh, line, 1))
- return NULL;
-/*
- * Search for the specified line.
- */
- node = _glh_find_id(glh, id);
-/*
- * Not found?
- */
- if(!node || node->group != glh->group)
- return NULL;
-/*
- * Record the node of the matching line as the starting point
- * for subsequent searches.
- */
- glh->recall = node;
-/*
- * Copy the recalled line into the provided line buffer.
- */
- strncpy(line, glh->buffer + node->start, dim);
- line[dim-1] = '\0';
- return line;
-}
-
-/*.......................................................................
- * Save the current history in a specified file.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * filename const char * The name of the new file to record the
- * history in.
- * comment const char * Extra information such as timestamps will
- * be recorded on a line started with this
- * string, the idea being that the file can
- * double as a command file. Specify "" if
- * you don't care.
- * max_lines int The maximum number of lines to save, or -1
- * to save all of the lines in the history
- * list.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_save_history(GlHistory *glh, const char *filename, const char *comment,
- int max_lines)
-{
- FILE *fp; /* The output file */
- GlLineNode *node; /* The line being saved */
- GlLineNode *head; /* The head of the list of lines to be saved */
-/*
- * Check the arguments.
- */
- if(!glh || !filename || !comment) {
- fprintf(stderr, "_glh_save_history: NULL argument(s).\n");
- return 1;
- };
-/*
- * Attempt to open the specified file.
- */
- fp = fopen(filename, "w");
- if(!fp) {
- fprintf(stderr, "_glh_save_history: Can't open %s (%s).\n",
- filename, strerror(errno));
- return 1;
- };
-/*
- * If a ceiling on the number of lines to save was specified, count
- * that number of lines backwards, to find the first line to be saved.
- */
- head = NULL;
- if(max_lines >= 0) {
- for(head=glh->list.tail; head && --max_lines > 0; head=head->prev)
- ;
- };
- if(!head)
- head = glh->list.head;
-/*
- * Write the contents of the history buffer to the history file, writing
- * associated data such as timestamps, to a line starting with the
- * specified comment string.
- */
- for(node=head; node; node=node->next) {
-/*
- * Write peripheral information associated with the line, as a comment.
- */
- if(fprintf(fp, "%s ", comment) < 0 ||
- _glh_write_timestamp(fp, node->timestamp) ||
- fprintf(fp, " %u\n", node->group) < 0) {
- fprintf(stderr, "Error writing %s (%s).\n", filename, strerror(errno));
- (void) fclose(fp);
- return 1;
- };
-/*
- * Write the history line.
- */
- if(fprintf(fp, "%s\n", glh->buffer + node->start) < 0) {
- fprintf(stderr, "Error writing %s (%s).\n", filename, strerror(errno));
- (void) fclose(fp);
- return 1;
- };
- };
-/*
- * Close the history file.
- */
- if(fclose(fp) == EOF) {
- fprintf(stderr, "Error writing %s (%s).\n", filename, strerror(errno));
- return 1;
- };
- return 0;
-}
-
-/*.......................................................................
- * Restore previous history lines from a given file.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * filename const char * The name of the file to read from.
- * comment const char * The same comment string that was passed to
- * _glh_save_history() when this file was
- * written.
- * line char * A buffer into which lines can be read.
- * dim size_t The allocated dimension of line[].
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_load_history(GlHistory *glh, const char *filename, const char *comment,
- char *line, size_t dim)
-{
- FILE *fp; /* The output file */
- size_t comment_len; /* The length of the comment string */
- time_t timestamp; /* The timestamp of the history line */
- unsigned group; /* The identifier of the history group to which */
- /* the line belongs. */
- int lineno; /* The line number being read */
-/*
- * Check the arguments.
- */
- if(!glh || !filename || !comment || !line) {
- fprintf(stderr, "_glh_load_history: NULL argument(s).\n");
- return 1;
- };
-/*
- * Measure the length of the comment string.
- */
- comment_len = strlen(comment);
-/*
- * Clear the history list.
- */
- _glh_clear_history(glh, 1);
-/*
- * Attempt to open the specified file. Don't treat it as an error
- * if the file doesn't exist.
- */
- fp = fopen(filename, "r");
- if(!fp)
- return 0;
-/*
- * Attempt to read each line and preceding peripheral info, and add these
- * to the history list.
- */
- for(lineno=1; fgets(line, dim, fp) != NULL; lineno++) {
- char *lptr; /* A pointer into the input line */
-/*
- * Check that the line starts with the comment string.
- */
- if(strncmp(line, comment, comment_len) != 0) {
- return _glh_cant_load_history(glh, filename, lineno,
- "Corrupt history parameter line", fp);
- };
-/*
- * Skip spaces and tabs after the comment.
- */
- for(lptr=line+comment_len; *lptr && (*lptr==' ' || *lptr=='\t'); lptr++)
- ;
-/*
- * The next word must be a timestamp.
- */
- if(_glh_decode_timestamp(lptr, &lptr, ×tamp)) {
- return _glh_cant_load_history(glh, filename, lineno,
- "Corrupt timestamp", fp);
- };
-/*
- * Skip spaces and tabs.
- */
- while(*lptr==' ' || *lptr=='\t')
- lptr++;
-/*
- * The next word must be an unsigned integer group number.
- */
- group = (int) strtoul(lptr, &lptr, 10);
- if(*lptr != ' ' && *lptr != '\n') {
- return _glh_cant_load_history(glh, filename, lineno,
- "Corrupt group id", fp);
- };
-/*
- * Skip spaces and tabs.
- */
- while(*lptr==' ' || *lptr=='\t')
- lptr++;
-/*
- * There shouldn't be anything left on the line.
- */
- if(*lptr != '\n') {
- return _glh_cant_load_history(glh, filename, lineno,
- "Corrupt parameter line", fp);
- };
-/*
- * Now read the history line itself.
- */
- lineno++;
- if(fgets(line, dim, fp) == NULL)
- return _glh_cant_load_history(glh, filename, lineno, "Read error", fp);
-/*
- * Append the line to the history buffer.
- */
- if(_glh_add_history(glh, line, 1)) {
- return _glh_cant_load_history(glh, filename, lineno,
- "Insufficient memory to record line", fp);
- };
-/*
- * Record the group and timestamp information along with the line.
- */
- if(glh->list.tail) {
- glh->list.tail->timestamp = timestamp;
- glh->list.tail->group = group;
- };
- };
-/*
- * Close the file.
- */
- (void) fclose(fp);
- return 0;
-}
-
-/*.......................................................................
- * This is a private error return function of _glh_load_history().
- */
-static int _glh_cant_load_history(GlHistory *glh, const char *filename,
- int lineno, const char *message, FILE *fp)
-{
- fprintf(stderr, "%s:%d: %s.\n", filename, lineno, message);
- (void) fclose(fp);
- return 1;
-}
-
-/*.......................................................................
- * Switch history groups.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * group unsigned The new group identifier. This will be recorded
- * with subsequent history lines, and subsequent
- * history searches will only return lines with
- * this group identifier. This allows multiple
- * separate history lists to exist within
- * a single GlHistory object. Note that the
- * default group identifier is 0.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_set_group(GlHistory *glh, unsigned group)
-{
-/*
- * Check the arguments.
- */
- if(!glh) {
- fprintf(stderr, "_glh_set_group: NULL argument(s).\n");
- return 1;
- };
-/*
- * Is the group being changed?
- */
- if(group != glh->group) {
-/*
- * Cancel any ongoing search.
- */
- if(_glh_cancel_search(glh))
- return 1;
-/*
- * Record the new group.
- */
- glh->group = group;
- };
- return 0;
-}
-
-/*.......................................................................
- * Query the current history group.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * Output:
- * return unsigned The group identifier.
- */
-int _glh_get_group(GlHistory *glh)
-{
- return glh ? glh->group : 0;
-}
-
-/*.......................................................................
- * Write a timestamp to a given stdio stream, in the format
- * yyyymmddhhmmss
- *
- * Input:
- * fp FILE * The stream to write to.
- * timestamp time_t The timestamp to be written.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int _glh_write_timestamp(FILE *fp, time_t timestamp)
-{
- struct tm *t; /* THe broken-down calendar time */
-/*
- * Get the calendar components corresponding to the given timestamp.
- */
- if(timestamp < 0 || (t = localtime(×tamp)) == NULL) {
- if(fprintf(fp, "?") < 0)
- return 1;
- return 0;
- };
-/*
- * Write the calendar time as yyyymmddhhmmss.
- */
- if(fprintf(fp, "%04d%02d%02d%02d%02d%02d", t->tm_year + 1900, t->tm_mon + 1,
- t->tm_mday, t->tm_hour, t->tm_min, t->tm_sec) < 0)
- return 1;
- return 0;
-}
-
-/*.......................................................................
- * Read a timestamp from a string.
- *
- * Input:
- * string char * The string to read from.
- * Input/Output:
- * endp char ** On output *endp will point to the next unprocessed
- * character in string[].
- * timestamp time_t * The timestamp will be assigned to *t.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-static int _glh_decode_timestamp(char *string, char **endp, time_t *timestamp)
-{
- unsigned year,month,day,hour,min,sec; /* Calendar time components */
- struct tm t;
-/*
- * There are 14 characters in the date format yyyymmddhhmmss.
- */
- enum {TSLEN=14};
- char timestr[TSLEN+1]; /* The timestamp part of the string */
-/*
- * If the time wasn't available at the time that the line was recorded
- * it will have been written as "?". Check for this before trying
- * to read the timestamp.
- */
- if(string[0] == '\?') {
- *endp = string+1;
- *timestamp = -1;
- return 0;
- };
-/*
- * The timestamp is expected to be written in the form yyyymmddhhmmss.
- */
- if(strlen(string) < TSLEN) {
- *endp = string;
- return 1;
- };
-/*
- * Copy the timestamp out of the string.
- */
- strncpy(timestr, string, TSLEN);
- timestr[TSLEN] = '\0';
-/*
- * Decode the timestamp.
- */
- if(sscanf(timestr, "%4u%2u%2u%2u%2u%2u", &year, &month, &day, &hour, &min,
- &sec) != 6) {
- *endp = string;
- return 1;
- };
-/*
- * Advance the string pointer over the successfully read timestamp.
- */
- *endp = string + TSLEN;
-/*
- * Copy the read values into a struct tm.
- */
- t.tm_sec = sec;
- t.tm_min = min;
- t.tm_hour = hour;
- t.tm_mday = day;
- t.tm_wday = 0;
- t.tm_yday = 0;
- t.tm_mon = month - 1;
- t.tm_year = year - 1900;
- t.tm_isdst = -1;
-/*
- * Convert the contents of the struct tm to a time_t.
- */
- *timestamp = mktime(&t);
- return 0;
-}
-
-/*.......................................................................
- * Display the contents of the history list.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * fp FILE * The stdio stream to write to.
- * fmt const char * A format string. This can contain arbitrary
- * characters, which are written verbatim, plus
- * any of the following format directives:
- * %D - The date, like 2001-11-20
- * %T - The time of day, like 23:59:59
- * %N - The sequential entry number of the
- * line in the history buffer.
- * %G - The history group number of the line.
- * %% - A literal % character.
- * %H - The history line.
- * all_groups int If true, display history lines from all
- * history groups. Otherwise only display
- * those of the current history group.
- * max_lines int If max_lines is < 0, all available lines
- * are displayed. Otherwise only the most
- * recent max_lines lines will be displayed.
- * Output:
- * return int 0 - OK.
- * 1 - Error.
- */
-int _glh_show_history(GlHistory *glh, FILE *fp, const char *fmt,
- int all_groups, int max_lines)
-{
- GlLineNode *node; /* The line being displayed */
- GlLineNode *oldest; /* The oldest line to display */
- enum {TSMAX=32}; /* The maximum length of the date and time string */
- char buffer[TSMAX+1]; /* The buffer in which to write the date and time */
- int idlen; /* The length of displayed ID strings */
- unsigned grpmax; /* The maximum group number in the buffer */
- int grplen; /* The number of characters needed to print grpmax */
-/*
- * Check the arguments.
- */
- if(!glh || !fp || !fmt) {
- fprintf(stderr, "_glh_show_history: NULL argument(s).\n");
- return 1;
- };
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->list.head)
- return 0;
-/*
- * Work out the length to display ID numbers, choosing the length of
- * the biggest number in the buffer. Smaller numbers will be padded
- * with leading zeroes if needed.
- */
- sprintf(buffer, "%lu", (unsigned long) glh->list.tail->id);
- idlen = strlen(buffer);
-/*
- * Find the largest group number.
- */
- grpmax = 0;
- for(node=glh->list.head; node; node=node->next) {
- if(node->group > grpmax)
- grpmax = node->group;
- };
-/*
- * Find out how many characters are needed to display the group number.
- */
- sprintf(buffer, "%u", (unsigned) grpmax);
- grplen = strlen(buffer);
-/*
- * Find the node that follows the oldest line to be displayed.
- */
- if(max_lines < 0) {
- oldest = glh->list.head;
- } else if(max_lines==0) {
- return 0;
- } else {
- for(oldest=glh->list.tail; oldest; oldest=oldest->prev) {
- if((all_groups || oldest->group == glh->group) && --max_lines <= 0)
- break;
- };
-/*
- * If the number of lines in the buffer doesn't exceed the specified
- * maximum, start from the oldest line in the buffer.
- */
- if(!oldest)
- oldest = glh->list.head;
- };
-/*
- * List the history lines in increasing time order.
- */
- for(node=oldest; node; node=node->next) {
-/*
- * Only display lines from the current history group, unless
- * told otherwise.
- */
- if(all_groups || node->group == glh->group) {
- const char *fptr; /* A pointer into the format string */
- struct tm *t = NULL; /* The broken time version of the timestamp */
-/*
- * Work out the calendar representation of the node timestamp.
- */
- if(node->timestamp != (time_t) -1)
- t = localtime(&node->timestamp);
-/*
- * Parse the format string.
- */
- fptr = fmt;
- while(*fptr) {
-/*
- * Search for the start of the next format directive or the end of the string.
- */
- const char *start = fptr;
- while(*fptr && *fptr != '%')
- fptr++;
-/*
- * Display any literal characters that precede the located directive.
- */
- if(fptr > start && fprintf(fp, "%.*s", (int) (fptr - start), start) < 0)
- return 1;
-/*
- * Did we hit a new directive before the end of the line?
- */
- if(*fptr) {
-/*
- * Obey the directive. Ignore unknown directives.
- */
- switch(*++fptr) {
- case 'D': /* Display the date */
- if(t && strftime(buffer, TSMAX, "%Y-%m-%d", t) != 0 &&
- fprintf(fp, "%s", buffer) < 0)
- return 1;
- break;
- case 'T': /* Display the time of day */
- if(t && strftime(buffer, TSMAX, "%H:%M:%S", t) != 0 &&
- fprintf(fp, "%s", buffer) < 0)
- return 1;
- break;
- case 'N': /* Display the sequential entry number */
- if(fprintf(fp, "%*lu", idlen, (unsigned long) node->id) < 0)
- return 1;
- break;
- case 'G':
- if(fprintf(fp, "%*u", grplen, (unsigned) node->group) < 0)
- return 1;
- break;
- case 'H': /* Display the history line */
- if(fprintf(fp, "%s", glh->buffer + node->start) < 0)
- return 1;
- break;
- case '%': /* A literal % symbol */
- if(fputc('%', fp) == EOF)
- return 1;
- break;
- };
-/*
- * Skip the directive.
- */
- if(*fptr)
- fptr++;
- };
- };
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Change the size of the history buffer.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * bufsize size_t The number of bytes in the history buffer, or 0
- * to delete the buffer completely.
- * Output:
- * return int 0 - OK.
- * 1 - Insufficient memory (the previous buffer
- * will have been retained). No error message
- * will be displayed.
- */
-int _glh_resize_history(GlHistory *glh, size_t bufsize)
-{
- GlLineNode *node; /* A line location node in the list of lines */
- GlLineNode *prev; /* The line location node preceding 'node' */
-/*
- * Check the arguments.
- */
- if(!glh)
- return bufsize > 0;
-/*
- * If the new size doesn't differ from the existing size, do nothing.
- */
- if(glh->buflen == bufsize)
- return 0;
-/*
- * Cancel any ongoing search.
- */
- (void) _glh_cancel_search(glh);
-/*
- * Create a wholly new buffer?
- */
- if(glh->buflen == 0) {
- glh->buffer = (char *) malloc(bufsize);
- if(!glh->buffer)
- return 1;
- glh->buflen = bufsize;
-/*
- * Delete an existing buffer?
- */
- } else if(bufsize == 0) {
- _glh_clear_history(glh, 1);
- free(glh->buffer);
- glh->buffer = NULL;
- glh->buflen = 0;
-/*
- * To get here, we must be shrinking or expanding from one
- * finite size to another.
- */
- } else {
-/*
- * If we are shrinking the size of the buffer, then we first need
- * to discard the oldest lines that won't fit in the new buffer.
- */
- if(bufsize < glh->buflen) {
- size_t nbytes = 0; /* The number of bytes used in the new buffer */
- GlLineNode *oldest; /* The oldest node to be kept */
-/*
- * Searching backwards from the youngest line, find the oldest
- * line for which there will be sufficient room in the new buffer.
- */
- for(oldest = glh->list.tail;
- oldest && (nbytes += oldest->nchar) <= bufsize;
- oldest = oldest->prev)
- ;
-/*
- * We will have gone one node too far, unless we reached the oldest line
- * without exceeding the target length.
- */
- if(oldest) {
- nbytes -= oldest->nchar;
- oldest = oldest->next;
- };
-/*
- * Discard the nodes that can't be retained.
- */
- while(glh->list.head && glh->list.head != oldest)
- _glh_discard_node(glh, glh->list.head);
-/*
- * If we are increasing the size of the buffer, we need to reallocate
- * the buffer before shifting the lines into their new positions.
- */
- } else {
- char *new_buffer = (char *) realloc(glh->buffer, bufsize);
- if(!new_buffer)
- return 1;
- glh->buffer = new_buffer;
- glh->buflen = bufsize;
- };
-/*
- * If there are any lines to be preserved, copy the block of lines
- * that precedes the end of the existing buffer to what will be
- * the end of the new buffer.
- */
- if(glh->list.head) {
- int shift; /* The number of bytes to shift lines in the buffer */
-/*
- * Get the oldest line to be kept.
- */
- GlLineNode *oldest = glh->list.head;
-/*
- * Count the number of characters that are used in the lines that
- * precede the end of the current buffer (ie. not including those
- * lines that have been wrapped to the start of the buffer).
- */
- int n = 0;
- for(node=oldest,prev=oldest->prev; node && node->start >= oldest->start;
- prev=node, node=node->next)
- n += node->nchar;
-/*
- * Move these bytes to the end of the resized buffer.
- */
- memmove(glh->buffer + bufsize - n, glh->buffer + oldest->start, n);
-/*
- * Adjust the buffer pointers to reflect the new locations of the moved
- * lines.
- */
- shift = bufsize - n - oldest->start;
- for(node=prev; node && node->start >= oldest->start; node=node->prev)
- node->start += shift;
- };
-/*
- * Shrink the buffer?
- */
- if(bufsize < glh->buflen) {
- char *new_buffer = (char *) realloc(glh->buffer, bufsize);
- if(new_buffer)
- glh->buffer = new_buffer;
- glh->buflen = bufsize; /* Mark it as shrunk, regardless of success */
- };
- };
- return 0;
-}
-
-/*.......................................................................
- * Set an upper limit to the number of lines that can be recorded in the
- * history list, or remove a previously specified limit.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * max_lines int The maximum number of lines to allow, or -1 to
- * cancel a previous limit and allow as many lines
- * as will fit in the current history buffer size.
- */
-void _glh_limit_history(GlHistory *glh, int max_lines)
-{
- if(!glh)
- return;
-/*
- * Apply a new limit?
- */
- if(max_lines >= 0 && max_lines != glh->max_lines) {
-/*
- * Count successively older lines until we reach the start of the
- * list, or until we have seen max_lines lines (at which point 'node'
- * will be line number max_lines+1).
- */
- int nline = 0;
- GlLineNode *node;
- for(node=glh->list.tail; node && ++nline <= max_lines; node=node->prev)
- ;
-/*
- * Discard any lines that exceed the limit.
- */
- if(node) {
- GlLineNode *oldest = node->next; /* The oldest line to be kept */
-/*
- * Delete nodes from the head of the list until we reach the node that
- * is to be kept.
- */
- while(glh->list.head && glh->list.head != oldest)
- _glh_discard_node(glh, glh->list.head);
- };
- };
-/*
- * Record the new limit.
- */
- glh->max_lines = max_lines;
- return;
-}
-
-/*.......................................................................
- * Discard either all history, or the history associated with the current
- * history group.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * all_groups int If true, clear all of the history. If false,
- * clear only the stored lines associated with the
- * currently selected history group.
- */
-void _glh_clear_history(GlHistory *glh, int all_groups)
-{
-/*
- * Check the arguments.
- */
- if(!glh)
- return;
-/*
- * Cancel any ongoing search.
- */
- (void) _glh_cancel_search(glh);
-/*
- * Delete all history lines regardless of group?
- */
- if(all_groups) {
- _rst_FreeList(glh->list.node_mem);
- glh->list.head = glh->list.tail = NULL;
- glh->nline = 0;
- glh->id_node = NULL;
-/*
- * Just delete lines of the current group?
- */
- } else {
- GlLineNode *node; /* The line node being checked */
- GlLineNode *prev; /* The line node that precedes 'node' */
- GlLineNode *next; /* The line node that follows 'node' */
-/*
- * Search out and delete the line nodes of the current group.
- */
- for(node=glh->list.head; node; node=next) {
-/*
- * Keep a record of the following node before we delete the current
- * node.
- */
- next = node->next;
-/*
- * Discard this node?
- */
- if(node->group == glh->group)
- _glh_discard_node(glh, node);
- };
-/*
- * If there are any lines left, and we deleted any lines, there will
- * be gaps in the buffer. These need to be removed.
- */
- if(glh->list.head) {
- int epos; /* The index of the last used element in the buffer */
-/*
- * Find the line nearest the end of the buffer.
- */
- GlLineNode *enode;
- for(node=glh->list.head, prev=NULL;
- node && node->start >= glh->list.head->start;
- prev=node, node = node->next)
- ;
- enode = prev;
-/*
- * Move the end line to abutt the end of the buffer, and remove gaps
- * between the lines that precede it.
- */
- epos = glh->buflen;
- for(node=enode; node; node=node->prev) {
- int shift = epos - (node->start + node->nchar);
- if(shift) {
- memmove(glh->buffer + node->start + shift,
- glh->buffer + node->start, node->nchar);
- node->start += shift;
- };
- epos = node->start;
- };
-/*
- * Move the first line in the buffer to the start of the buffer, and
- * remove gaps between the lines that follow it.
- */
- epos = 0;
- for(node=enode ? enode->next : NULL; node; node=node->next) {
- int shift = epos - node->start;
- if(shift) {
- memmove(glh->buffer + node->start + shift,
- glh->buffer + node->start, node->nchar);
- node->start += shift;
- };
- epos = node->start + node->nchar;
- };
- };
- };
- return;
-}
-
-/*.......................................................................
- * Temporarily enable or disable the history list.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * enable int If true, turn on the history mechanism. If
- * false, disable it.
- */
-void _glh_toggle_history(GlHistory *glh, int enable)
-{
- if(glh)
- glh->enable = enable;
-}
-
-/*.......................................................................
- * Remove a given line location node from the history list, and return
- * it to the freelist.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * node GlLineNode * The node to be removed. This must be currently
- * in the list who's head is glh->list.head, or
- * be NULL.
- */
-static void _glh_discard_node(GlHistory *glh, GlLineNode *node)
-{
- if(node) {
-/*
- * Make the node that precedes the node being removed point
- * to the one that follows it.
- */
- if(node->prev)
- node->prev->next = node->next;
- else
- glh->list.head = node->next;
-/*
- * Make the node that follows the node being removed point
- * to the one that precedes it.
- */
- if(node->next)
- node->next->prev = node->prev;
- else
- glh->list.tail = node->prev;
-/*
- * If we are deleting the node that is marked as the start point of the
- * last ID search, remove the cached starting point.
- */
- if(node == glh->id_node)
- glh->id_node = NULL;
-/*
- * Return the node to the free list.
- */
- node = (GlLineNode *) _del_FreeListNode(glh->list.node_mem, node);
-/*
- * Decrement the count of the number of lines in the buffer.
- */
- glh->nline--;
- };
-}
-
-/*.......................................................................
- * Lookup the details of a given history line, given its id.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * id GlLineID The sequential number of the line.
- * Input/Output:
- * line const char ** A pointer to the history line will be assigned
- * to *line.
- * group unsigned * The group membership of the line will be assigned
- * to *group.
- * timestamp time_t * The timestamp of the line will be assigned to
- * *timestamp.
- * Output:
- * return int 0 - The requested line wasn't found.
- * 1 - The line was found.
- */
-int _glh_lookup_history(GlHistory *glh, GlhLineID id, const char **line,
- unsigned *group, time_t *timestamp)
-{
- GlLineNode *node; /* The located line location node */
-/*
- * Check the arguments.
- */
- if(!glh)
- return 0;
-/*
- * Search for the line that has the specified ID.
- */
- node = _glh_find_id(glh, (GlhLineID) id);
-/*
- * Not found?
- */
- if(!node)
- return 0;
-/*
- * Return the details of the line.
- */
- if(line)
- *line = glh->buffer + node->start;
- if(group)
- *group = node->group;
- if(timestamp)
- *timestamp = node->timestamp;
- return 1;
-}
-
-/*.......................................................................
- * Lookup a node in the history list by its ID.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * id GlhLineID The ID of the line to be returned.
- * Output:
- * return GlLIneNode * The located node, or NULL if not found.
- */
-static GlLineNode *_glh_find_id(GlHistory *glh, GlhLineID id)
-{
- GlLineNode *node; /* The node being checked */
-/*
- * Is history enabled?
- */
- if(!glh->enable || !glh->list.head)
- return NULL;
-/*
- * If possible, start at the end point of the last ID search.
- * Otherwise start from the head of the list.
- */
- node = glh->id_node;
- if(!node)
- node = glh->list.head;
-/*
- * Search forwards from 'node'?
- */
- if(node->id < id) {
- while(node && node->id != id)
- node = node->next;
- glh->id_node = node ? node : glh->list.tail;
-/*
- * Search backwards from 'node'?
- */
- } else {
- while(node && node->id != id)
- node = node->prev;
- glh->id_node = node ? node : glh->list.head;
- };
-/*
- * Return the located node (this will be NULL if the ID wasn't found).
- */
- return node;
-}
-
-/*.......................................................................
- * Query the state of the history list. Note that any of the input/output
- * pointers can be specified as NULL.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * Input/Output:
- * enabled int * If history is enabled, *enabled will be
- * set to 1. Otherwise it will be assigned 0.
- * group unsigned * The current history group ID will be assigned
- * to *group.
- * max_lines int * The currently requested limit on the number
- * of history lines in the list, or -1 if
- * unlimited.
- */
-void _glh_state_of_history(GlHistory *glh, int *enabled, unsigned *group,
- int *max_lines)
-{
- if(glh) {
- if(enabled)
- *enabled = glh->enable;
- if(group)
- *group = glh->group;
- if(max_lines)
- *max_lines = glh->max_lines;
- };
-}
-
-/*.......................................................................
- * Get the range of lines in the history buffer.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * Input/Output:
- * oldest unsigned long * The sequential entry number of the oldest
- * line in the history list will be assigned
- * to *oldest, unless there are no lines, in
- * which case 0 will be assigned.
- * newest unsigned long * The sequential entry number of the newest
- * line in the history list will be assigned
- * to *newest, unless there are no lines, in
- * which case 0 will be assigned.
- * nlines int * The number of lines currently in the history
- * list.
- */
-void _glh_range_of_history(GlHistory *glh, unsigned long *oldest,
- unsigned long *newest, int *nlines)
-{
- if(glh) {
- if(oldest)
- *oldest = glh->list.head ? glh->list.head->id : 0;
- if(newest)
- *newest = glh->list.tail ? glh->list.tail->id : 0;
- if(nlines)
- *nlines = glh->nline;
- };
-}
-
-/*.......................................................................
- * Return the size of the history buffer and the amount of the
- * buffer that is currently in use.
- *
- * Input:
- * glh GlHistory * The input-line history maintenance object.
- * Input/Output:
- * buff_size size_t * The size of the history buffer (bytes).
- * buff_used size_t * The amount of the history buffer that
- * is currently occupied (bytes).
- */
-void _glh_size_of_history(GlHistory *glh, size_t *buff_size, size_t *buff_used)
-{
- if(glh) {
- if(buff_size)
- *buff_size = glh->buflen;
-/*
- * Determine the amount of buffer space that is currently occupied.
- */
- if(buff_used) {
- size_t used = 0;
- GlLineNode *node;
- for(node=glh->list.head; node; node=node->next)
- used += node->nchar;
- *buff_used = used;
- };
- };
-}
diff --git a/libtecla-1.4.1/history.h b/libtecla-1.4.1/history.h
deleted file mode 100644
index 49671a4..0000000
--- a/libtecla-1.4.1/history.h
+++ /dev/null
@@ -1,159 +0,0 @@
-#ifndef history_h
-#define history_h
-
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include /* FILE * */
-
-/*-----------------------------------------------------------------------
- * This module is used to record and traverse historical lines of user input.
- */
-
-typedef struct GlHistory GlHistory;
-
-/*
- * Create a new history maintenance object.
- */
-GlHistory *_new_GlHistory(size_t buflen);
-
-/*
- * Delete a history maintenance object.
- */
-GlHistory *_del_GlHistory(GlHistory *glh);
-
-int _glh_add_history(GlHistory *glh, const char *line, int force);
-
-int _glh_search_prefix(GlHistory *glh, const char *line, int prefix_len);
-
-char *_glh_find_backwards(GlHistory *glh, char *line, size_t dim);
-char *_glh_find_forwards(GlHistory *glh, char *line, size_t dim);
-
-int _glh_cancel_search(GlHistory *glh);
-
-char *_glh_oldest_line(GlHistory *glh, char *line, size_t dim);
-char *_glh_current_line(GlHistory *glh, char *line, size_t dim);
-
-/*
- * Whenever a new line is added to the history buffer, it is given
- * a unique ID, recorded in an object of the following type.
- */
-typedef unsigned long GlhLineID;
-
-/*
- * Query the id of a history line offset by a given number of lines from
- * the one that is currently being recalled. If a recall session isn't
- * in progress, or the offset points outside the history list, 0 is
- * returned.
- */
-GlhLineID _glh_line_id(GlHistory *glh, int offset);
-
-/*
- * Recall a line by its history buffer ID. If the line is no longer
- * in the buffer, or the specified id is zero, NULL is returned.
- */
-char *_glh_recall_line(GlHistory *glh, GlhLineID id, char *line, size_t dim);
-
-/*
- * Write the contents of the history buffer to a given file. Note that
- * ~ and $ expansion are not performed on the filename.
- */
-int _glh_save_history(GlHistory *glh, const char *filename,
- const char *comment, int max_lines);
-
-/*
- * Restore the contents of the history buffer from a given file.
- * Note that ~ and $ expansion are not performed on the filename.
- */
-int _glh_load_history(GlHistory *glh, const char *filename, const char *comment,
- char *line, size_t dim);
-
-/*
- * Set and query the current history group.
- */
-int _glh_set_group(GlHistory *glh, unsigned group);
-int _glh_get_group(GlHistory *glh);
-
-/*
- * Display the contents of the history list to the specified stdio
- * output group.
- */
-int _glh_show_history(GlHistory *glh, FILE *fp, const char *fmt,
- int all_groups, int max_lines);
-
-/*
- * Change the size of the history buffer.
- */
-int _glh_resize_history(GlHistory *glh, size_t bufsize);
-
-/*
- * Set an upper limit to the number of lines that can be recorded in the
- * history list, or remove a previously specified limit.
- */
-void _glh_limit_history(GlHistory *glh, int max_lines);
-
-/*
- * Discard either all history, or the history associated with the current
- * history group.
- */
-void _glh_clear_history(GlHistory *glh, int all_groups);
-
-/*
- * Temporarily enable or disable the history facility.
- */
-void _glh_toggle_history(GlHistory *glh, int enable);
-
-/*
- * Lookup a history line by its sequential number of entry in the
- * history buffer.
- */
-int _glh_lookup_history(GlHistory *glh, GlhLineID id, const char **line,
- unsigned *group, time_t *timestamp);
-
-/*
- * Query the state of the history list.
- */
-void _glh_state_of_history(GlHistory *glh, int *enabled, unsigned *group,
- int *max_lines);
-
-/*
- * Get the range of lines in the history buffer.
- */
-void _glh_range_of_history(GlHistory *glh, unsigned long *oldest,
- unsigned long *newest, int *nlines);
-
-/*
- * Return the size of the history buffer and the amount of the
- * buffer that is currently in use.
- */
-void _glh_size_of_history(GlHistory *glh, size_t *buff_size, size_t *buff_used);
-
-#endif
diff --git a/libtecla-1.4.1/homedir.c b/libtecla-1.4.1/homedir.c
deleted file mode 100644
index f2029b7..0000000
--- a/libtecla-1.4.1/homedir.c
+++ /dev/null
@@ -1,399 +0,0 @@
-/*
- * Copyright (c) 2000, 2001 by Martin C. Shepherd.
- *
- * All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, and/or sell copies of the Software, and to permit persons
- * to whom the Software is furnished to do so, provided that the above
- * copyright notice(s) and this permission notice appear in all copies of
- * the Software and that both the above copyright notice(s) and this
- * permission notice appear in supporting documentation.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
- * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
- * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
- * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
- * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Except as contained in this notice, the name of a copyright holder
- * shall not be used in advertising or otherwise to promote the sale, use
- * or other dealings in this Software without prior written authorization
- * of the copyright holder.
- */
-
-#include