| /* 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"); |
| } |
| } |
| } |
| } |