1 /* Copyright (C) 1987-2002 Free Software Foundation, Inc.
2
3 This file is part of the GNU Readline Library, a library for
4 reading lines of text with interactive input and history editing.
5
6 The GNU Readline Library is free software; you can redistribute it
7 and/or modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2, or
9 (at your option) any later version.
10
11 The GNU Readline Library is distributed in the hope that it will be
12 useful, but WITHOUT ANY WARRANTY; without even the implied warranty
13 of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 The GNU General Public License is often shipped with GNU software, and
17 is generally kept in a file called COPYING or LICENSE. If you do not
18 have a copy of the license, write to the Free Software Foundation,
19 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
20
21 #include <stdio.h>
22
23 #ifdef READLINE_LIBRARY
24 # include "history.h"
25 #else
26 # include <readline/history.h>
27 #endif
28
29 #include <string.h>
30
main(argc,argv)31 main (argc, argv)
32 int argc;
33 char **argv;
34 {
35 char line[1024], *t;
36 int len, done;
37
38 line[0] = 0;
39 done = 0;
40
41 using_history ();
42 while (!done)
43 {
44 printf ("history$ ");
45 fflush (stdout);
46 t = fgets (line, sizeof (line) - 1, stdin);
47 if (t && *t)
48 {
49 len = strlen (t);
50 if (t[len - 1] == '\n')
51 t[len - 1] = '\0';
52 }
53
54 if (!t)
55 strcpy (line, "quit");
56
57 if (line[0])
58 {
59 char *expansion;
60 int result;
61
62 using_history ();
63
64 result = history_expand (line, &expansion);
65 if (result)
66 fprintf (stderr, "%s\n", expansion);
67
68 if (result < 0 || result == 2)
69 {
70 free (expansion);
71 continue;
72 }
73
74 add_history (expansion);
75 strncpy (line, expansion, sizeof (line) - 1);
76 free (expansion);
77 }
78
79 if (strcmp (line, "quit") == 0)
80 done = 1;
81 else if (strcmp (line, "save") == 0)
82 write_history ("history_file");
83 else if (strcmp (line, "read") == 0)
84 read_history ("history_file");
85 else if (strcmp (line, "list") == 0)
86 {
87 register HIST_ENTRY **the_list;
88 register int i;
89 time_t tt;
90 char timestr[128];
91
92 the_list = history_list ();
93 if (the_list)
94 for (i = 0; the_list[i]; i++)
95 {
96 tt = history_get_time (the_list[i]);
97 if (tt)
98 strftime (timestr, sizeof (timestr), "%a %R", localtime(&tt));
99 else
100 strcpy (timestr, "??");
101 printf ("%d: %s: %s\n", i + history_base, timestr, the_list[i]->line);
102 }
103 }
104 else if (strncmp (line, "delete", 6) == 0)
105 {
106 int which;
107 if ((sscanf (line + 6, "%d", &which)) == 1)
108 {
109 HIST_ENTRY *entry = remove_history (which);
110 if (!entry)
111 fprintf (stderr, "No such entry %d\n", which);
112 else
113 {
114 free (entry->line);
115 free (entry);
116 }
117 }
118 else
119 {
120 fprintf (stderr, "non-numeric arg given to `delete'\n");
121 }
122 }
123 }
124 }
125