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+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/<many-new-files>.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.