diff options
Diffstat (limited to 'readline/examples/hist_purgecmd.c')
-rw-r--r-- | readline/examples/hist_purgecmd.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/readline/examples/hist_purgecmd.c b/readline/examples/hist_purgecmd.c deleted file mode 100644 index 94becd8..0000000 --- a/readline/examples/hist_purgecmd.c +++ /dev/null @@ -1,151 +0,0 @@ -/* hist_purgecmd -- remove all instances of command or pattern from history - file */ - -/* Copyright (C) 2011 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/>. -*/ -#ifndef READLINE_LIBRARY -#define READLINE_LIBRARY 1 -#endif - -#include <unistd.h> -#include <stdlib.h> -#include <stdio.h> - -#include <regex.h> - -#ifdef READLINE_LIBRARY -# include "history.h" -#else -# include <readline/history.h> -#endif - -#include <string.h> - -#define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0) -#define STREQN(a, b, n) ((n == 0) ? (1) \ - : ((a)[0] == (b)[0] && strncmp(a, b, n) == 0)) - -extern int history_offset; - -#define PURGE_REGEXP 0x01 - -static void -usage() -{ - fprintf (stderr, "hist_purgecmd: usage: hist_purgecmd [-r] [-t] [-f filename] command-spec\n"); - exit (2); -} - -int -main (argc, argv) - int argc; - char **argv; -{ - char *fn; - int r, flags; - - flags = 0; - fn = 0; - while ((r = getopt (argc, argv, "f:rt")) != -1) - { - switch (r) - { - case 'f': - fn = optarg; - break; - case 'r': - flags |= PURGE_REGEXP; - break; - case 't': - history_write_timestamps = 1; - break; - default: - usage (); - } - } - argv += optind; - argc -= optind; - - if (fn == 0) - fn = getenv ("HISTFILE"); - if (fn == 0) - { - fprintf (stderr, "hist_purgecmd: no history file\n"); - usage (); - } - - if ((r = read_history (fn)) != 0) - { - fprintf (stderr, "hist_purgecmd: read_history: %s: %s\n", fn, strerror (r)); - exit (1); - } - - for (r = 0; r < argc; r++) - hist_purgecmd (argv[r], flags); - - if ((r = write_history (fn)) != 0) - { - fprintf (stderr, "hist_purgecmd: write_history: %s: %s\n", fn, strerror (r)); - exit (1); - } - - exit (0); -} - -int -hist_purgecmd (cmd, flags) - char *cmd; - int flags; -{ - int r, n, rflags; - HIST_ENTRY *temp; - regex_t regex = { 0 }; - - if (flags & PURGE_REGEXP) - { - rflags = REG_EXTENDED|REG_NOSUB; - if (regcomp (®ex, cmd, rflags)) - { - fprintf (stderr, "hist_purgecmd: %s: invalid regular expression\n", cmd); - return -1; - } - } - - r = 0; - using_history (); - r = where_history (); - for (n = 0; n < r; n++) - { - temp = history_get (n+history_base); - if (((flags & PURGE_REGEXP) && (regexec (®ex, temp->line, 0, 0, 0) == 0)) || - ((flags & PURGE_REGEXP) == 0 && STREQ (temp->line, cmd))) - { - remove_history (n); - r--; /* have to get one fewer now */ - n--; /* compensate for above increment */ - history_offset--; /* moving backwards in history list */ - } - } - using_history (); - - if (flags & PURGE_REGEXP) - regfree (®ex); - - return r; -} |