summaryrefslogtreecommitdiffstats
path: root/lib/readline/examples/histexamp.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--lib/readline/examples/histexamp.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/lib/readline/examples/histexamp.c b/lib/readline/examples/histexamp.c
new file mode 100644
index 0000000..309d769
--- /dev/null
+++ b/lib/readline/examples/histexamp.c
@@ -0,0 +1,128 @@
+/* histexamp.c - history library example program. */
+
+/* Copyright (C) 1987-2009 Free Software Foundation, Inc.
+
+ This file is part of the GNU Readline Library (Readline), a library for
+ reading lines of text with interactive input and history editing.
+
+ Readline 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.
+
+ Readline 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 Readline. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+
+#ifdef READLINE_LIBRARY
+# include "history.h"
+#else
+# include <readline/history.h>
+#endif
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+int
+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");
+ }
+ }
+ }
+}