vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
/* hist_purgecmd -- remove all instances of command or pattern from history
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file */
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/* Copyright (C) 2011,2023 Free Software Foundation, Inc.
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This file is part of the GNU Readline Library (Readline), a library for
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reading lines of text with interactive input and history editing.
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Readline is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Readline is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Readline. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef READLINE_LIBRARY
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#define READLINE_LIBRARY 1
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#endif
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <regex.h>
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#ifdef READLINE_LIBRARY
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# include "history.h"
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#else
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# include <readline/history.h>
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#endif
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#include <string.h>
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#define STREQ(a, b) ((a)[0] == (b)[0] && strcmp(a, b) == 0)
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#define STREQN(a, b, n) ((n == 0) ? (1) \
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: ((a)[0] == (b)[0] && strncmp(a, b, n) == 0))
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#define PURGE_REGEXP 0x01
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int hist_purgecmd (char *, int);
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static void
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usage(void)
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{
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fprintf (stderr, "hist_purgecmd: usage: hist_purgecmd [-r] [-t] [-f filename] command-spec\n");
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exit (2);
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}
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int
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main (int argc, char **argv)
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{
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char *fn;
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int r, flags;
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flags = 0;
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fn = 0;
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while ((r = getopt (argc, argv, "f:rt")) != -1)
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{
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switch (r)
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{
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case 'f':
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fn = optarg;
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break;
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case 'r':
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flags |= PURGE_REGEXP;
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break;
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case 't':
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history_write_timestamps = 1;
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break;
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default:
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usage ();
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}
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}
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argv += optind;
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argc -= optind;
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if (fn == 0)
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fn = getenv ("HISTFILE");
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if (fn == 0)
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{
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fprintf (stderr, "hist_purgecmd: no history file\n");
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usage ();
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}
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if ((r = read_history (fn)) != 0)
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{
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fprintf (stderr, "hist_purgecmd: read_history: %s: %s\n", fn, strerror (r));
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exit (1);
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}
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for (r = 0; r < argc; r++)
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hist_purgecmd (argv[r], flags);
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if ((r = write_history (fn)) != 0)
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{
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fprintf (stderr, "hist_purgecmd: write_history: %s: %s\n", fn, strerror (r));
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exit (1);
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}
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exit (0);
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}
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int
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hist_purgecmd (char *cmd, int flags)
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{
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int r, n, rflags;
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HIST_ENTRY *temp;
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regex_t regex = { 0 };
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if (flags & PURGE_REGEXP)
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{
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rflags = REG_EXTENDED|REG_NOSUB;
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if (regcomp (®ex, cmd, rflags))
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{
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fprintf (stderr, "hist_purgecmd: %s: invalid regular expression\n", cmd);
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return -1;
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}
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}
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r = 0;
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using_history ();
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r = where_history ();
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for (n = 0; n < r; n++)
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{
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temp = history_get (n+history_base);
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if (((flags & PURGE_REGEXP) && (regexec (®ex, temp->line, 0, 0, 0) == 0)) ||
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((flags & PURGE_REGEXP) == 0 && STREQ (temp->line, cmd)))
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{
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remove_history (n);
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r--; /* have to get one fewer now */
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n--; /* compensate for above increment */
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history_offset--; /* moving backwards in history list */
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}
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}
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using_history ();
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if (flags & PURGE_REGEXP)
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regfree (®ex);
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return r;
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}
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