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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:51:56 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:51:56 +0000 |
commit | c77311c90aa045796b3adcd021e69901022f4649 (patch) | |
tree | 3a6c4cc9271c6f7f7c24feff0d1aea286eed0a06 /examples/histexamp.c | |
parent | Initial commit. (diff) | |
download | readline-c77311c90aa045796b3adcd021e69901022f4649.tar.xz readline-c77311c90aa045796b3adcd021e69901022f4649.zip |
Adding upstream version 8.2.upstream/8.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | examples/histexamp.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/examples/histexamp.c b/examples/histexamp.c new file mode 100644 index 0000000..309d769 --- /dev/null +++ b/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"); + } + } + } +} |