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authorJoel Sherrill <joel.sherrill@OARcorp.com>2011-04-08 16:24:33 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2011-04-08 16:24:33 +0000
commitb667555541a4d65bb9dae6f0e0f240e6a05b148e (patch)
treeb3ae5c92f04ae68fbf9580d6efcf1a1510851495 /readline-6.2/histsearch.c
parent2011-04-08 Joel Sherrill <joel.sherrill@oarcorp.com> (diff)
downloadrtems-addon-packages-b667555541a4d65bb9dae6f0e0f240e6a05b148e.tar.bz2
2011-04-08 Joel Sherrill <joel.sherrill@oarcorp.com>
* RTEMS_Makefiles/Makefile.readline-6.2, readline-6.2/CHANGELOG, readline-6.2/CHANGES, readline-6.2/COPYING, readline-6.2/INSTALL, readline-6.2/MANIFEST, readline-6.2/Makefile.in, readline-6.2/NEWS, readline-6.2/README, readline-6.2/USAGE, readline-6.2/aclocal.m4, readline-6.2/ansi_stdlib.h, readline-6.2/bind.c, readline-6.2/callback.c, readline-6.2/chardefs.h, readline-6.2/compat.c, readline-6.2/complete.c, readline-6.2/config.h.in, readline-6.2/configure, readline-6.2/configure.in, readline-6.2/display.c, readline-6.2/emacs_keymap.c, readline-6.2/funmap.c, readline-6.2/histexpand.c, readline-6.2/histfile.c, readline-6.2/histlib.h, readline-6.2/history.c, readline-6.2/history.h, readline-6.2/histsearch.c, readline-6.2/input.c, readline-6.2/isearch.c, readline-6.2/keymaps.c, readline-6.2/keymaps.h, readline-6.2/kill.c, readline-6.2/macro.c, readline-6.2/mbutil.c, readline-6.2/misc.c, readline-6.2/nls.c, readline-6.2/parens.c, readline-6.2/patchlevel, readline-6.2/posixdir.h, readline-6.2/posixjmp.h, readline-6.2/posixselect.h, readline-6.2/posixstat.h, readline-6.2/readline.c, readline-6.2/readline.h, readline-6.2/rlconf.h, readline-6.2/rldefs.h, readline-6.2/rlmbutil.h, readline-6.2/rlprivate.h, readline-6.2/rlshell.h, readline-6.2/rlstdc.h, readline-6.2/rltty.c, readline-6.2/rltty.h, readline-6.2/rltypedefs.h, readline-6.2/rlwinsize.h, readline-6.2/savestring.c, readline-6.2/search.c, readline-6.2/shell.c, readline-6.2/signals.c, readline-6.2/tcap.h, readline-6.2/terminal.c, readline-6.2/text.c, readline-6.2/tilde.c, readline-6.2/tilde.h, readline-6.2/undo.c, readline-6.2/util.c, readline-6.2/vi_keymap.c, readline-6.2/vi_mode.c, readline-6.2/xfree.c, readline-6.2/xmalloc.c, readline-6.2/xmalloc.h, readline-6.2/doc/Makefile.in, readline-6.2/doc/fdl.texi, readline-6.2/doc/history.0, readline-6.2/doc/history.3, readline-6.2/doc/history.dvi, readline-6.2/doc/history.html, readline-6.2/doc/history.info, readline-6.2/doc/history.pdf, readline-6.2/doc/history.ps, readline-6.2/doc/history.texi, readline-6.2/doc/history_3.ps, readline-6.2/doc/hstech.texi, readline-6.2/doc/hsuser.texi, readline-6.2/doc/readline.0, readline-6.2/doc/readline.3, readline-6.2/doc/readline.dvi, readline-6.2/doc/readline.html, readline-6.2/doc/readline.info, readline-6.2/doc/readline.pdf, readline-6.2/doc/readline.ps, readline-6.2/doc/readline_3.ps, readline-6.2/doc/rlman.texi, readline-6.2/doc/rltech.texi, readline-6.2/doc/rluser.texi, readline-6.2/doc/rluserman.dvi, readline-6.2/doc/rluserman.html, readline-6.2/doc/rluserman.info, readline-6.2/doc/rluserman.pdf, readline-6.2/doc/rluserman.ps, readline-6.2/doc/rluserman.texi, readline-6.2/doc/texi2dvi, readline-6.2/doc/texi2html, readline-6.2/doc/texinfo.tex, readline-6.2/doc/version.texi, readline-6.2/examples/Inputrc, readline-6.2/examples/Makefile.in, readline-6.2/examples/excallback.c, readline-6.2/examples/fileman.c, readline-6.2/examples/histexamp.c, readline-6.2/examples/manexamp.c, readline-6.2/examples/readlinebuf.h, readline-6.2/examples/rl-fgets.c, readline-6.2/examples/rl.c, readline-6.2/examples/rlcat.c, readline-6.2/examples/rlevent.c, readline-6.2/examples/rlptytest.c, readline-6.2/examples/rltest.c, readline-6.2/examples/rlversion.c, readline-6.2/examples/rlwrap-0.30.tar.gz, readline-6.2/examples/autoconf/BASH_CHECK_LIB_TERMCAP, readline-6.2/examples/autoconf/RL_LIB_READLINE_VERSION, readline-6.2/examples/autoconf/wi_LIB_READLINE, readline-6.2/examples/rlfe/ChangeLog, readline-6.2/examples/rlfe/Makefile.in, readline-6.2/examples/rlfe/README, readline-6.2/examples/rlfe/config.h.in, readline-6.2/examples/rlfe/configure, readline-6.2/examples/rlfe/configure.in, readline-6.2/examples/rlfe/extern.h, readline-6.2/examples/rlfe/os.h, readline-6.2/examples/rlfe/pty.c, readline-6.2/examples/rlfe/rlfe.c, readline-6.2/examples/rlfe/screen.h, readline-6.2/shlib/Makefile.in, readline-6.2/support/config.guess, readline-6.2/support/config.rpath, readline-6.2/support/config.sub, readline-6.2/support/install.sh, readline-6.2/support/mkdirs, readline-6.2/support/mkdist, readline-6.2/support/mkinstalldirs, readline-6.2/support/shlib-install, readline-6.2/support/shobj-conf, readline-6.2/support/wcwidth.c: New files.
Diffstat (limited to 'readline-6.2/histsearch.c')
-rw-r--r--readline-6.2/histsearch.c194
1 files changed, 194 insertions, 0 deletions
diff --git a/readline-6.2/histsearch.c b/readline-6.2/histsearch.c
new file mode 100644
index 0000000..1ad55d2
--- /dev/null
+++ b/readline-6.2/histsearch.c
@@ -0,0 +1,194 @@
+/* histsearch.c -- searching the history list. */
+
+/* Copyright (C) 1989, 1992-2009 Free Software Foundation, Inc.
+
+ This file contains the GNU History Library (History), a set of
+ routines for managing the text of previously typed lines.
+
+ History 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 3 of the License, or
+ (at your option) any later version.
+
+ History 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 History. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#if defined (HAVE_UNISTD_H)
+# ifdef _MINIX
+# include <sys/types.h>
+# endif
+# include <unistd.h>
+#endif
+
+#include "history.h"
+#include "histlib.h"
+
+/* The list of alternate characters that can delimit a history search
+ string. */
+char *history_search_delimiter_chars = (char *)NULL;
+
+static int history_search_internal PARAMS((const char *, int, int));
+
+/* Search the history for STRING, starting at history_offset.
+ If DIRECTION < 0, then the search is through previous entries, else
+ through subsequent. If ANCHORED is non-zero, the string must
+ appear at the beginning of a history line, otherwise, the string
+ may appear anywhere in the line. If the string is found, then
+ current_history () is the history entry, and the value of this
+ function is the offset in the line of that history entry that the
+ string was found in. Otherwise, nothing is changed, and a -1 is
+ returned. */
+
+static int
+history_search_internal (string, direction, anchored)
+ const char *string;
+ int direction, anchored;
+{
+ register int i, reverse;
+ register char *line;
+ register int line_index;
+ int string_len;
+ HIST_ENTRY **the_history; /* local */
+
+ i = history_offset;
+ reverse = (direction < 0);
+
+ /* Take care of trivial cases first. */
+ if (string == 0 || *string == '\0')
+ return (-1);
+
+ if (!history_length || ((i >= history_length) && !reverse))
+ return (-1);
+
+ if (reverse && (i >= history_length))
+ i = history_length - 1;
+
+#define NEXT_LINE() do { if (reverse) i--; else i++; } while (0)
+
+ the_history = history_list ();
+ string_len = strlen (string);
+ while (1)
+ {
+ /* Search each line in the history list for STRING. */
+
+ /* At limit for direction? */
+ if ((reverse && i < 0) || (!reverse && i == history_length))
+ return (-1);
+
+ line = the_history[i]->line;
+ line_index = strlen (line);
+
+ /* If STRING is longer than line, no match. */
+ if (string_len > line_index)
+ {
+ NEXT_LINE ();
+ continue;
+ }
+
+ /* Handle anchored searches first. */
+ if (anchored == ANCHORED_SEARCH)
+ {
+ if (STREQN (string, line, string_len))
+ {
+ history_offset = i;
+ return (0);
+ }
+
+ NEXT_LINE ();
+ continue;
+ }
+
+ /* Do substring search. */
+ if (reverse)
+ {
+ line_index -= string_len;
+
+ while (line_index >= 0)
+ {
+ if (STREQN (string, line + line_index, string_len))
+ {
+ history_offset = i;
+ return (line_index);
+ }
+ line_index--;
+ }
+ }
+ else
+ {
+ register int limit;
+
+ limit = line_index - string_len + 1;
+ line_index = 0;
+
+ while (line_index < limit)
+ {
+ if (STREQN (string, line + line_index, string_len))
+ {
+ history_offset = i;
+ return (line_index);
+ }
+ line_index++;
+ }
+ }
+ NEXT_LINE ();
+ }
+}
+
+/* Do a non-anchored search for STRING through the history in DIRECTION. */
+int
+history_search (string, direction)
+ const char *string;
+ int direction;
+{
+ return (history_search_internal (string, direction, NON_ANCHORED_SEARCH));
+}
+
+/* Do an anchored search for string through the history in DIRECTION. */
+int
+history_search_prefix (string, direction)
+ const char *string;
+ int direction;
+{
+ return (history_search_internal (string, direction, ANCHORED_SEARCH));
+}
+
+/* Search for STRING in the history list. DIR is < 0 for searching
+ backwards. POS is an absolute index into the history list at
+ which point to begin searching. */
+int
+history_search_pos (string, dir, pos)
+ const char *string;
+ int dir, pos;
+{
+ int ret, old;
+
+ old = where_history ();
+ history_set_pos (pos);
+ if (history_search (string, dir) == -1)
+ {
+ history_set_pos (old);
+ return (-1);
+ }
+ ret = where_history ();
+ history_set_pos (old);
+ return ret;
+}