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authorAn-Cheng Huang <ancheng@vyatta.com>2007-11-12 13:06:02 -0800
committerAn-Cheng Huang <ancheng@vyatta.com>2007-11-12 13:06:02 -0800
commitb7fc9e0f6d6105ba2203f219743d4b269415e84b (patch)
treeef6586dfc62798c2b17487b443864699aca55f31 /lib/readline/examples/histexamp.c
downloadvyatta-bash-b7fc9e0f6d6105ba2203f219743d4b269415e84b.tar.gz
vyatta-bash-b7fc9e0f6d6105ba2203f219743d4b269415e84b.zip
initial import from bash_3.1dfsg.orig.tar.gz
Diffstat (limited to 'lib/readline/examples/histexamp.c')
-rw-r--r--lib/readline/examples/histexamp.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/lib/readline/examples/histexamp.c b/lib/readline/examples/histexamp.c
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+/* Copyright (C) 1987-2002 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library, a library for
+ reading lines of text with interactive input and history editing.
+
+ The GNU Readline Library 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.
+
+ The GNU Readline Library 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.
+
+ The GNU General Public License is often shipped with GNU software, and
+ is generally kept in a file called COPYING or LICENSE. If you do not
+ have a copy of the license, write to the Free Software Foundation,
+ 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#include <stdio.h>
+
+#ifdef READLINE_LIBRARY
+# include "history.h"
+#else
+# include <readline/history.h>
+#endif
+
+#include <string.h>
+
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ char line[1024], *t;
+ int len, done;
+
+ line[0] = 0;
+ done = 0;
+
+ using_history ();
+ while (!done)
+ {
+ printf ("history$ ");
+ fflush (stdout);
+ t = fgets (line, sizeof (line) - 1, stdin);
+ if (t && *t)
+ {
+ len = strlen (t);
+ if (t[len - 1] == '\n')
+ t[len - 1] = '\0';
+ }
+
+ if (!t)
+ strcpy (line, "quit");
+
+ if (line[0])
+ {
+ char *expansion;
+ int result;
+
+ using_history ();
+
+ result = history_expand (line, &expansion);
+ if (result)
+ fprintf (stderr, "%s\n", expansion);
+
+ if (result < 0 || result == 2)
+ {
+ free (expansion);
+ continue;
+ }
+
+ add_history (expansion);
+ strncpy (line, expansion, sizeof (line) - 1);
+ free (expansion);
+ }
+
+ if (strcmp (line, "quit") == 0)
+ done = 1;
+ else if (strcmp (line, "save") == 0)
+ write_history ("history_file");
+ else if (strcmp (line, "read") == 0)
+ read_history ("history_file");
+ else if (strcmp (line, "list") == 0)
+ {
+ register HIST_ENTRY **the_list;
+ register int i;
+ time_t tt;
+ char timestr[128];
+
+ the_list = history_list ();
+ if (the_list)
+ for (i = 0; the_list[i]; i++)
+ {
+ tt = history_get_time (the_list[i]);
+ if (tt)
+ strftime (timestr, sizeof (timestr), "%a %R", localtime(&tt));
+ else
+ strcpy (timestr, "??");
+ printf ("%d: %s: %s\n", i + history_base, timestr, the_list[i]->line);
+ }
+ }
+ else if (strncmp (line, "delete", 6) == 0)
+ {
+ int which;
+ if ((sscanf (line + 6, "%d", &which)) == 1)
+ {
+ HIST_ENTRY *entry = remove_history (which);
+ if (!entry)
+ fprintf (stderr, "No such entry %d\n", which);
+ else
+ {
+ free (entry->line);
+ free (entry);
+ }
+ }
+ else
+ {
+ fprintf (stderr, "non-numeric arg given to `delete'\n");
+ }
+ }
+ }
+}