/* **************************************************************** */
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/* **************************************************************** */
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/* */
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/* */
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/* I-Search and Searching */
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/* I-Search and Searching */
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/* */
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/* */
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/* **************************************************************** */
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/* **************************************************************** */
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/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
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/* Copyright (C) 1987-2005 Free Software Foundation, Inc.
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This file contains the Readline Library (the Library), a set of
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This file contains the Readline Library (the Library), a set of
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routines for providing Emacs style line input to programs that ask
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routines for providing Emacs style line input to programs that ask
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for it.
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for it.
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The Library is free software; you can redistribute it and/or modify
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The Library 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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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any later version.
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The Library is distributed in the hope that it will be useful, but
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The Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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General Public License for more details.
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The GNU General Public License is often shipped with GNU software, and
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The GNU General Public License is often shipped with GNU software, and
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is generally kept in a file called COPYING or LICENSE. If you do not
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is generally kept in a file called COPYING or LICENSE. If you do not
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have a copy of the license, write to the Free Software Foundation,
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have a copy of the license, write to the Free Software Foundation,
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59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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59 Temple Place, Suite 330, Boston, MA 02111 USA. */
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#define READLINE_LIBRARY
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#define READLINE_LIBRARY
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#if defined (HAVE_CONFIG_H)
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#if defined (HAVE_CONFIG_H)
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# include <config.h>
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# include <config.h>
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#endif
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#endif
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#include <sys/types.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdio.h>
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#if defined (HAVE_UNISTD_H)
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#if defined (HAVE_UNISTD_H)
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# include <unistd.h>
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# include <unistd.h>
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#endif
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#endif
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#if defined (HAVE_STDLIB_H)
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#if defined (HAVE_STDLIB_H)
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# include <stdlib.h>
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# include <stdlib.h>
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#else
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#else
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# include "ansi_stdlib.h"
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# include "ansi_stdlib.h"
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#endif
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#endif
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#include "rldefs.h"
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#include "rldefs.h"
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#include "rlmbutil.h"
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#include "rlmbutil.h"
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#include "readline.h"
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#include "readline.h"
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#include "history.h"
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#include "history.h"
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#include "rlprivate.h"
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#include "rlprivate.h"
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#include "xmalloc.h"
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#include "xmalloc.h"
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/* Variables exported to other files in the readline library. */
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/* Variables exported to other files in the readline library. */
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char *_rl_isearch_terminators = (char *)NULL;
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char *_rl_isearch_terminators = (char *)NULL;
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_rl_search_cxt *_rl_iscxt = 0;
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_rl_search_cxt *_rl_iscxt = 0;
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/* Variables imported from other files in the readline library. */
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/* Variables imported from other files in the readline library. */
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extern HIST_ENTRY *_rl_saved_line_for_history;
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extern HIST_ENTRY *_rl_saved_line_for_history;
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static int rl_search_history PARAMS((int, int));
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static int rl_search_history PARAMS((int, int));
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static _rl_search_cxt *_rl_isearch_init PARAMS((int));
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static _rl_search_cxt *_rl_isearch_init PARAMS((int));
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static void _rl_isearch_fini PARAMS((_rl_search_cxt *));
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static void _rl_isearch_fini PARAMS((_rl_search_cxt *));
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static int _rl_isearch_cleanup PARAMS((_rl_search_cxt *, int));
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static int _rl_isearch_cleanup PARAMS((_rl_search_cxt *, int));
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/* Last line found by the current incremental search, so we don't `find'
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/* Last line found by the current incremental search, so we don't `find'
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identical lines many times in a row. */
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identical lines many times in a row. */
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static char *prev_line_found;
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static char *prev_line_found;
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/* Last search string and its length. */
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/* Last search string and its length. */
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static char *last_isearch_string;
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static char *last_isearch_string;
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static int last_isearch_string_len;
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static int last_isearch_string_len;
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static char *default_isearch_terminators = "\033\012";
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static char *default_isearch_terminators = "\033\012";
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_rl_search_cxt *
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_rl_search_cxt *
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_rl_scxt_alloc (type, flags)
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_rl_scxt_alloc (type, flags)
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int type, flags;
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int type, flags;
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{
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{
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_rl_search_cxt *cxt;
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_rl_search_cxt *cxt;
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cxt = (_rl_search_cxt *)xmalloc (sizeof (_rl_search_cxt));
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cxt = (_rl_search_cxt *)xmalloc (sizeof (_rl_search_cxt));
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cxt->type = type;
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cxt->type = type;
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cxt->sflags = flags;
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cxt->sflags = flags;
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cxt->search_string = 0;
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cxt->search_string = 0;
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cxt->search_string_size = cxt->search_string_index = 0;
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cxt->search_string_size = cxt->search_string_index = 0;
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cxt->lines = 0;
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cxt->lines = 0;
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cxt->allocated_line = 0;
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cxt->allocated_line = 0;
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cxt->hlen = cxt->hindex = 0;
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cxt->hlen = cxt->hindex = 0;
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cxt->save_point = rl_point;
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cxt->save_point = rl_point;
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cxt->save_mark = rl_mark;
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cxt->save_mark = rl_mark;
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cxt->save_line = where_history ();
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cxt->save_line = where_history ();
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cxt->last_found_line = cxt->save_line;
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cxt->last_found_line = cxt->save_line;
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cxt->prev_line_found = 0;
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cxt->prev_line_found = 0;
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cxt->save_undo_list = 0;
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cxt->save_undo_list = 0;
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cxt->history_pos = 0;
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cxt->history_pos = 0;
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cxt->direction = 0;
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cxt->direction = 0;
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cxt->lastc = 0;
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cxt->lastc = 0;
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cxt->sline = 0;
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cxt->sline = 0;
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cxt->sline_len = cxt->sline_index = 0;
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cxt->sline_len = cxt->sline_index = 0;
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cxt->search_terminators = 0;
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cxt->search_terminators = 0;
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return cxt;
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return cxt;
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}
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}
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void
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void
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_rl_scxt_dispose (cxt, flags)
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_rl_scxt_dispose (cxt, flags)
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_rl_search_cxt *cxt;
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_rl_search_cxt *cxt;
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int flags;
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int flags;
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{
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{
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FREE (cxt->search_string);
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FREE (cxt->search_string);
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FREE (cxt->allocated_line);
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FREE (cxt->allocated_line);
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FREE (cxt->lines);
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FREE (cxt->lines);
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free (cxt);
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free (cxt);
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}
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}
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/* Search backwards through the history looking for a string which is typed
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/* Search backwards through the history looking for a string which is typed
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interactively. Start with the current line. */
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interactively. Start with the current line. */
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int
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int
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rl_reverse_search_history (sign, key)
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rl_reverse_search_history (sign, key)
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int sign, key;
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int sign, key;
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{
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{
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return (rl_search_history (-sign, key));
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return (rl_search_history (-sign, key));
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}
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}
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/* Search forwards through the history looking for a string which is typed
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/* Search forwards through the history looking for a string which is typed
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interactively. Start with the current line. */
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interactively. Start with the current line. */
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int
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int
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rl_forward_search_history (sign, key)
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rl_forward_search_history (sign, key)
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int sign, key;
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int sign, key;
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{
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{
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return (rl_search_history (sign, key));
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return (rl_search_history (sign, key));
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}
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}
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/* Display the current state of the search in the echo-area.
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/* Display the current state of the search in the echo-area.
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SEARCH_STRING contains the string that is being searched for,
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SEARCH_STRING contains the string that is being searched for,
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DIRECTION is zero for forward, or non-zero for reverse,
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DIRECTION is zero for forward, or non-zero for reverse,
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WHERE is the history list number of the current line. If it is
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WHERE is the history list number of the current line. If it is
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-1, then this line is the starting one. */
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-1, then this line is the starting one. */
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static void
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static void
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rl_display_search (search_string, reverse_p, where)
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rl_display_search (search_string, reverse_p, where)
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char *search_string;
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char *search_string;
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int reverse_p, where;
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int reverse_p, where;
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{
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{
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char *message;
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char *message;
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int msglen, searchlen;
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int msglen, searchlen;
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searchlen = (search_string && *search_string) ? strlen (search_string) : 0;
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searchlen = (search_string && *search_string) ? strlen (search_string) : 0;
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message = (char *)xmalloc (searchlen + 33);
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message = (char *)xmalloc (searchlen + 33);
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msglen = 0;
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msglen = 0;
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#if defined (NOTDEF)
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#if defined (NOTDEF)
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if (where != -1)
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if (where != -1)
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{
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{
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sprintf (message, "[%d]", where + history_base);
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sprintf (message, "[%d]", where + history_base);
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msglen = strlen (message);
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msglen = strlen (message);
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}
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}
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#endif /* NOTDEF */
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#endif /* NOTDEF */
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message[msglen++] = '(';
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message[msglen++] = '(';
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if (reverse_p)
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if (reverse_p)
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{
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{
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strcpy (message + msglen, "reverse-");
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strcpy (message + msglen, "reverse-");
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msglen += 8;
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msglen += 8;
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}
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}
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strcpy (message + msglen, "i-search)`");
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strcpy (message + msglen, "i-search)`");
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msglen += 10;
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msglen += 10;
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if (search_string)
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if (search_string)
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{
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{
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strcpy (message + msglen, search_string);
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strcpy (message + msglen, search_string);
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msglen += searchlen;
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msglen += searchlen;
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}
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}
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strcpy (message + msglen, "': ");
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strcpy (message + msglen, "': ");
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rl_message ("%s", message);
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rl_message ("%s", message);
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free (message);
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free (message);
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(*rl_redisplay_function) ();
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(*rl_redisplay_function) ();
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}
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}
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static _rl_search_cxt *
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static _rl_search_cxt *
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_rl_isearch_init (direction)
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_rl_isearch_init (direction)
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int direction;
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int direction;
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{
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{
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_rl_search_cxt *cxt;
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_rl_search_cxt *cxt;
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register int i;
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register int i;
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HIST_ENTRY **hlist;
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HIST_ENTRY **hlist;
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cxt = _rl_scxt_alloc (RL_SEARCH_ISEARCH, 0);
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cxt = _rl_scxt_alloc (RL_SEARCH_ISEARCH, 0);
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if (direction < 0)
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if (direction < 0)
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cxt->sflags |= SF_REVERSE;
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cxt->sflags |= SF_REVERSE;
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cxt->search_terminators = _rl_isearch_terminators ? _rl_isearch_terminators
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cxt->search_terminators = _rl_isearch_terminators ? _rl_isearch_terminators
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: default_isearch_terminators;
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: default_isearch_terminators;
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/* Create an arrary of pointers to the lines that we want to search. */
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/* Create an arrary of pointers to the lines that we want to search. */
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hlist = history_list ();
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hlist = history_list ();
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rl_maybe_replace_line ();
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rl_maybe_replace_line ();
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i = 0;
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i = 0;
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if (hlist)
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if (hlist)
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for (i = 0; hlist[i]; i++);
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for (i = 0; hlist[i]; i++);
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/* Allocate space for this many lines, +1 for the current input line,
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/* Allocate space for this many lines, +1 for the current input line,
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and remember those lines. */
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and remember those lines. */
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cxt->lines = (char **)xmalloc ((1 + (cxt->hlen = i)) * sizeof (char *));
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cxt->lines = (char **)xmalloc ((1 + (cxt->hlen = i)) * sizeof (char *));
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for (i = 0; i < cxt->hlen; i++)
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for (i = 0; i < cxt->hlen; i++)
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cxt->lines[i] = hlist[i]->line;
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cxt->lines[i] = hlist[i]->line;
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if (_rl_saved_line_for_history)
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if (_rl_saved_line_for_history)
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cxt->lines[i] = _rl_saved_line_for_history->line;
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cxt->lines[i] = _rl_saved_line_for_history->line;
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else
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else
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{
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{
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/* Keep track of this so we can free it. */
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/* Keep track of this so we can free it. */
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cxt->allocated_line = (char *)xmalloc (1 + strlen (rl_line_buffer));
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cxt->allocated_line = (char *)xmalloc (1 + strlen (rl_line_buffer));
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strcpy (cxt->allocated_line, &rl_line_buffer[0]);
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strcpy (cxt->allocated_line, &rl_line_buffer[0]);
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cxt->lines[i] = cxt->allocated_line;
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cxt->lines[i] = cxt->allocated_line;
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}
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}
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cxt->hlen++;
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cxt->hlen++;
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/* The line where we start the search. */
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/* The line where we start the search. */
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cxt->history_pos = cxt->save_line;
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cxt->history_pos = cxt->save_line;
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rl_save_prompt ();
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rl_save_prompt ();
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/* Initialize search parameters. */
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/* Initialize search parameters. */
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cxt->search_string = (char *)xmalloc (cxt->search_string_size = 128);
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cxt->search_string = (char *)xmalloc (cxt->search_string_size = 128);
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cxt->search_string[cxt->search_string_index = 0] = '\0';
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cxt->search_string[cxt->search_string_index = 0] = '\0';
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/* Normalize DIRECTION into 1 or -1. */
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/* Normalize DIRECTION into 1 or -1. */
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cxt->direction = (direction >= 0) ? 1 : -1;
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cxt->direction = (direction >= 0) ? 1 : -1;
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cxt->sline = rl_line_buffer;
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cxt->sline = rl_line_buffer;
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cxt->sline_len = strlen (cxt->sline);
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cxt->sline_len = strlen (cxt->sline);
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cxt->sline_index = rl_point;
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cxt->sline_index = rl_point;
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_rl_iscxt = cxt; /* save globally */
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_rl_iscxt = cxt; /* save globally */
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return cxt;
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return cxt;
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}
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}
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static void
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static void
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_rl_isearch_fini (cxt)
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_rl_isearch_fini (cxt)
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_rl_search_cxt *cxt;
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_rl_search_cxt *cxt;
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{
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{
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/* First put back the original state. */
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/* First put back the original state. */
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strcpy (rl_line_buffer, cxt->lines[cxt->save_line]);
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strcpy (rl_line_buffer, cxt->lines[cxt->save_line]);
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rl_restore_prompt ();
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rl_restore_prompt ();
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/* Save the search string for possible later use. */
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/* Save the search string for possible later use. */
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FREE (last_isearch_string);
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FREE (last_isearch_string);
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last_isearch_string = cxt->search_string;
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last_isearch_string = cxt->search_string;
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last_isearch_string_len = cxt->search_string_index;
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last_isearch_string_len = cxt->search_string_index;
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cxt->search_string = 0;
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cxt->search_string = 0;
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if (cxt->last_found_line < cxt->save_line)
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if (cxt->last_found_line < cxt->save_line)
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rl_get_previous_history (cxt->save_line - cxt->last_found_line, 0);
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rl_get_previous_history (cxt->save_line - cxt->last_found_line, 0);
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else
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else
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rl_get_next_history (cxt->last_found_line - cxt->save_line, 0);
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rl_get_next_history (cxt->last_found_line - cxt->save_line, 0);
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|
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/* If the string was not found, put point at the end of the last matching
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/* If the string was not found, put point at the end of the last matching
|
line. If last_found_line == orig_line, we didn't find any matching
|
line. If last_found_line == orig_line, we didn't find any matching
|
history lines at all, so put point back in its original position. */
|
history lines at all, so put point back in its original position. */
|
if (cxt->sline_index < 0)
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if (cxt->sline_index < 0)
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{
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{
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if (cxt->last_found_line == cxt->save_line)
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if (cxt->last_found_line == cxt->save_line)
|
cxt->sline_index = cxt->save_point;
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cxt->sline_index = cxt->save_point;
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else
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else
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cxt->sline_index = strlen (rl_line_buffer);
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cxt->sline_index = strlen (rl_line_buffer);
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rl_mark = cxt->save_mark;
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rl_mark = cxt->save_mark;
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}
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}
|
|
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rl_point = cxt->sline_index;
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rl_point = cxt->sline_index;
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/* Don't worry about where to put the mark here; rl_get_previous_history
|
/* Don't worry about where to put the mark here; rl_get_previous_history
|
and rl_get_next_history take care of it. */
|
and rl_get_next_history take care of it. */
|
|
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rl_clear_message ();
|
rl_clear_message ();
|
}
|
}
|
|
|
int
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int
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_rl_search_getchar (cxt)
|
_rl_search_getchar (cxt)
|
_rl_search_cxt *cxt;
|
_rl_search_cxt *cxt;
|
{
|
{
|
int c;
|
int c;
|
|
|
/* Read a key and decide how to proceed. */
|
/* Read a key and decide how to proceed. */
|
RL_SETSTATE(RL_STATE_MOREINPUT);
|
RL_SETSTATE(RL_STATE_MOREINPUT);
|
c = cxt->lastc = rl_read_key ();
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c = cxt->lastc = rl_read_key ();
|
RL_UNSETSTATE(RL_STATE_MOREINPUT);
|
RL_UNSETSTATE(RL_STATE_MOREINPUT);
|
|
|
#if defined (HANDLE_MULTIBYTE)
|
#if defined (HANDLE_MULTIBYTE)
|
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
|
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
|
c = cxt->lastc = _rl_read_mbstring (cxt->lastc, cxt->mb, MB_LEN_MAX);
|
c = cxt->lastc = _rl_read_mbstring (cxt->lastc, cxt->mb, MB_LEN_MAX);
|
#endif
|
#endif
|
|
|
return c;
|
return c;
|
}
|
}
|
|
|
/* Process just-read character C according to isearch context CXT. Return
|
/* Process just-read character C according to isearch context CXT. Return
|
-1 if the caller should just free the context and return, 0 if we should
|
-1 if the caller should just free the context and return, 0 if we should
|
break out of the loop, and 1 if we should continue to read characters. */
|
break out of the loop, and 1 if we should continue to read characters. */
|
int
|
int
|
_rl_isearch_dispatch (cxt, c)
|
_rl_isearch_dispatch (cxt, c)
|
_rl_search_cxt *cxt;
|
_rl_search_cxt *cxt;
|
int c;
|
int c;
|
{
|
{
|
int n, wstart, wlen, limit, cval;
|
int n, wstart, wlen, limit, cval;
|
rl_command_func_t *f;
|
rl_command_func_t *f;
|
|
|
f = (rl_command_func_t *)NULL;
|
f = (rl_command_func_t *)NULL;
|
|
|
/* Translate the keys we do something with to opcodes. */
|
/* Translate the keys we do something with to opcodes. */
|
if (c >= 0 && _rl_keymap[c].type == ISFUNC)
|
if (c >= 0 && _rl_keymap[c].type == ISFUNC)
|
{
|
{
|
f = _rl_keymap[c].function;
|
f = _rl_keymap[c].function;
|
|
|
if (f == rl_reverse_search_history)
|
if (f == rl_reverse_search_history)
|
cxt->lastc = (cxt->sflags & SF_REVERSE) ? -1 : -2;
|
cxt->lastc = (cxt->sflags & SF_REVERSE) ? -1 : -2;
|
else if (f == rl_forward_search_history)
|
else if (f == rl_forward_search_history)
|
cxt->lastc = (cxt->sflags & SF_REVERSE) ? -2 : -1;
|
cxt->lastc = (cxt->sflags & SF_REVERSE) ? -2 : -1;
|
else if (f == rl_rubout)
|
else if (f == rl_rubout)
|
cxt->lastc = -3;
|
cxt->lastc = -3;
|
else if (c == CTRL ('G'))
|
else if (c == CTRL ('G'))
|
cxt->lastc = -4;
|
cxt->lastc = -4;
|
else if (c == CTRL ('W')) /* XXX */
|
else if (c == CTRL ('W')) /* XXX */
|
cxt->lastc = -5;
|
cxt->lastc = -5;
|
else if (c == CTRL ('Y')) /* XXX */
|
else if (c == CTRL ('Y')) /* XXX */
|
cxt->lastc = -6;
|
cxt->lastc = -6;
|
}
|
}
|
|
|
/* The characters in isearch_terminators (set from the user-settable
|
/* The characters in isearch_terminators (set from the user-settable
|
variable isearch-terminators) are used to terminate the search but
|
variable isearch-terminators) are used to terminate the search but
|
not subsequently execute the character as a command. The default
|
not subsequently execute the character as a command. The default
|
value is "\033\012" (ESC and C-J). */
|
value is "\033\012" (ESC and C-J). */
|
if (strchr (cxt->search_terminators, cxt->lastc))
|
if (strchr (cxt->search_terminators, cxt->lastc))
|
{
|
{
|
/* ESC still terminates the search, but if there is pending
|
/* ESC still terminates the search, but if there is pending
|
input or if input arrives within 0.1 seconds (on systems
|
input or if input arrives within 0.1 seconds (on systems
|
with select(2)) it is used as a prefix character
|
with select(2)) it is used as a prefix character
|
with rl_execute_next. WATCH OUT FOR THIS! This is intended
|
with rl_execute_next. WATCH OUT FOR THIS! This is intended
|
to allow the arrow keys to be used like ^F and ^B are used
|
to allow the arrow keys to be used like ^F and ^B are used
|
to terminate the search and execute the movement command.
|
to terminate the search and execute the movement command.
|
XXX - since _rl_input_available depends on the application-
|
XXX - since _rl_input_available depends on the application-
|
settable keyboard timeout value, this could alternatively
|
settable keyboard timeout value, this could alternatively
|
use _rl_input_queued(100000) */
|
use _rl_input_queued(100000) */
|
if (cxt->lastc == ESC && _rl_input_available ())
|
if (cxt->lastc == ESC && _rl_input_available ())
|
rl_execute_next (ESC);
|
rl_execute_next (ESC);
|
return (0);
|
return (0);
|
}
|
}
|
|
|
#define ENDSRCH_CHAR(c) \
|
#define ENDSRCH_CHAR(c) \
|
((CTRL_CHAR (c) || META_CHAR (c) || (c) == RUBOUT) && ((c) != CTRL ('G')))
|
((CTRL_CHAR (c) || META_CHAR (c) || (c) == RUBOUT) && ((c) != CTRL ('G')))
|
|
|
#if defined (HANDLE_MULTIBYTE)
|
#if defined (HANDLE_MULTIBYTE)
|
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
|
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
|
{
|
{
|
if (cxt->lastc >= 0 && (cxt->mb[0] && cxt->mb[1] == '\0') && ENDSRCH_CHAR (cxt->lastc))
|
if (cxt->lastc >= 0 && (cxt->mb[0] && cxt->mb[1] == '\0') && ENDSRCH_CHAR (cxt->lastc))
|
{
|
{
|
/* This sets rl_pending_input to c; it will be picked up the next
|
/* This sets rl_pending_input to c; it will be picked up the next
|
time rl_read_key is called. */
|
time rl_read_key is called. */
|
rl_execute_next (cxt->lastc);
|
rl_execute_next (cxt->lastc);
|
return (0);
|
return (0);
|
}
|
}
|
}
|
}
|
else
|
else
|
#endif
|
#endif
|
if (cxt->lastc >= 0 && ENDSRCH_CHAR (cxt->lastc))
|
if (cxt->lastc >= 0 && ENDSRCH_CHAR (cxt->lastc))
|
{
|
{
|
/* This sets rl_pending_input to LASTC; it will be picked up the next
|
/* This sets rl_pending_input to LASTC; it will be picked up the next
|
time rl_read_key is called. */
|
time rl_read_key is called. */
|
rl_execute_next (cxt->lastc);
|
rl_execute_next (cxt->lastc);
|
return (0);
|
return (0);
|
}
|
}
|
|
|
/* Now dispatch on the character. `Opcodes' affect the search string or
|
/* Now dispatch on the character. `Opcodes' affect the search string or
|
state. Other characters are added to the string. */
|
state. Other characters are added to the string. */
|
switch (cxt->lastc)
|
switch (cxt->lastc)
|
{
|
{
|
/* search again */
|
/* search again */
|
case -1:
|
case -1:
|
if (cxt->search_string_index == 0)
|
if (cxt->search_string_index == 0)
|
{
|
{
|
if (last_isearch_string)
|
if (last_isearch_string)
|
{
|
{
|
cxt->search_string_size = 64 + last_isearch_string_len;
|
cxt->search_string_size = 64 + last_isearch_string_len;
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
strcpy (cxt->search_string, last_isearch_string);
|
strcpy (cxt->search_string, last_isearch_string);
|
cxt->search_string_index = last_isearch_string_len;
|
cxt->search_string_index = last_isearch_string_len;
|
rl_display_search (cxt->search_string, (cxt->sflags & SF_REVERSE), -1);
|
rl_display_search (cxt->search_string, (cxt->sflags & SF_REVERSE), -1);
|
break;
|
break;
|
}
|
}
|
return (1);
|
return (1);
|
}
|
}
|
else if (cxt->sflags & SF_REVERSE)
|
else if (cxt->sflags & SF_REVERSE)
|
cxt->sline_index--;
|
cxt->sline_index--;
|
else if (cxt->sline_index != cxt->sline_len)
|
else if (cxt->sline_index != cxt->sline_len)
|
cxt->sline_index++;
|
cxt->sline_index++;
|
else
|
else
|
rl_ding ();
|
rl_ding ();
|
break;
|
break;
|
|
|
/* switch directions */
|
/* switch directions */
|
case -2:
|
case -2:
|
cxt->direction = -cxt->direction;
|
cxt->direction = -cxt->direction;
|
if (cxt->direction < 0)
|
if (cxt->direction < 0)
|
cxt->sflags |= SF_REVERSE;
|
cxt->sflags |= SF_REVERSE;
|
else
|
else
|
cxt->sflags &= ~SF_REVERSE;
|
cxt->sflags &= ~SF_REVERSE;
|
break;
|
break;
|
|
|
/* delete character from search string. */
|
/* delete character from search string. */
|
case -3: /* C-H, DEL */
|
case -3: /* C-H, DEL */
|
/* This is tricky. To do this right, we need to keep a
|
/* This is tricky. To do this right, we need to keep a
|
stack of search positions for the current search, with
|
stack of search positions for the current search, with
|
sentinels marking the beginning and end. But this will
|
sentinels marking the beginning and end. But this will
|
do until we have a real isearch-undo. */
|
do until we have a real isearch-undo. */
|
if (cxt->search_string_index == 0)
|
if (cxt->search_string_index == 0)
|
rl_ding ();
|
rl_ding ();
|
else
|
else
|
cxt->search_string[--cxt->search_string_index] = '\0';
|
cxt->search_string[--cxt->search_string_index] = '\0';
|
break;
|
break;
|
|
|
case -4: /* C-G, abort */
|
case -4: /* C-G, abort */
|
rl_replace_line (cxt->lines[cxt->save_line], 0);
|
rl_replace_line (cxt->lines[cxt->save_line], 0);
|
rl_point = cxt->save_point;
|
rl_point = cxt->save_point;
|
rl_mark = cxt->save_mark;
|
rl_mark = cxt->save_mark;
|
rl_restore_prompt();
|
rl_restore_prompt();
|
rl_clear_message ();
|
rl_clear_message ();
|
|
|
return -1;
|
return -1;
|
|
|
case -5: /* C-W */
|
case -5: /* C-W */
|
/* skip over portion of line we already matched and yank word */
|
/* skip over portion of line we already matched and yank word */
|
wstart = rl_point + cxt->search_string_index;
|
wstart = rl_point + cxt->search_string_index;
|
if (wstart >= rl_end)
|
if (wstart >= rl_end)
|
{
|
{
|
rl_ding ();
|
rl_ding ();
|
break;
|
break;
|
}
|
}
|
|
|
/* if not in a word, move to one. */
|
/* if not in a word, move to one. */
|
cval = _rl_char_value (rl_line_buffer, wstart);
|
cval = _rl_char_value (rl_line_buffer, wstart);
|
if (_rl_walphabetic (cval) == 0)
|
if (_rl_walphabetic (cval) == 0)
|
{
|
{
|
rl_ding ();
|
rl_ding ();
|
break;
|
break;
|
}
|
}
|
n = MB_NEXTCHAR (rl_line_buffer, wstart, 1, MB_FIND_NONZERO);;
|
n = MB_NEXTCHAR (rl_line_buffer, wstart, 1, MB_FIND_NONZERO);;
|
while (n < rl_end)
|
while (n < rl_end)
|
{
|
{
|
cval = _rl_char_value (rl_line_buffer, n);
|
cval = _rl_char_value (rl_line_buffer, n);
|
if (_rl_walphabetic (cval) == 0)
|
if (_rl_walphabetic (cval) == 0)
|
break;
|
break;
|
n = MB_NEXTCHAR (rl_line_buffer, n, 1, MB_FIND_NONZERO);;
|
n = MB_NEXTCHAR (rl_line_buffer, n, 1, MB_FIND_NONZERO);;
|
}
|
}
|
wlen = n - wstart + 1;
|
wlen = n - wstart + 1;
|
if (cxt->search_string_index + wlen + 1 >= cxt->search_string_size)
|
if (cxt->search_string_index + wlen + 1 >= cxt->search_string_size)
|
{
|
{
|
cxt->search_string_size += wlen + 1;
|
cxt->search_string_size += wlen + 1;
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
}
|
}
|
for (; wstart < n; wstart++)
|
for (; wstart < n; wstart++)
|
cxt->search_string[cxt->search_string_index++] = rl_line_buffer[wstart];
|
cxt->search_string[cxt->search_string_index++] = rl_line_buffer[wstart];
|
cxt->search_string[cxt->search_string_index] = '\0';
|
cxt->search_string[cxt->search_string_index] = '\0';
|
break;
|
break;
|
|
|
case -6: /* C-Y */
|
case -6: /* C-Y */
|
/* skip over portion of line we already matched and yank rest */
|
/* skip over portion of line we already matched and yank rest */
|
wstart = rl_point + cxt->search_string_index;
|
wstart = rl_point + cxt->search_string_index;
|
if (wstart >= rl_end)
|
if (wstart >= rl_end)
|
{
|
{
|
rl_ding ();
|
rl_ding ();
|
break;
|
break;
|
}
|
}
|
n = rl_end - wstart + 1;
|
n = rl_end - wstart + 1;
|
if (cxt->search_string_index + n + 1 >= cxt->search_string_size)
|
if (cxt->search_string_index + n + 1 >= cxt->search_string_size)
|
{
|
{
|
cxt->search_string_size += n + 1;
|
cxt->search_string_size += n + 1;
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
}
|
}
|
for (n = wstart; n < rl_end; n++)
|
for (n = wstart; n < rl_end; n++)
|
cxt->search_string[cxt->search_string_index++] = rl_line_buffer[n];
|
cxt->search_string[cxt->search_string_index++] = rl_line_buffer[n];
|
cxt->search_string[cxt->search_string_index] = '\0';
|
cxt->search_string[cxt->search_string_index] = '\0';
|
break;
|
break;
|
|
|
/* Add character to search string and continue search. */
|
/* Add character to search string and continue search. */
|
default:
|
default:
|
if (cxt->search_string_index + 2 >= cxt->search_string_size)
|
if (cxt->search_string_index + 2 >= cxt->search_string_size)
|
{
|
{
|
cxt->search_string_size += 128;
|
cxt->search_string_size += 128;
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
cxt->search_string = (char *)xrealloc (cxt->search_string, cxt->search_string_size);
|
}
|
}
|
#if defined (HANDLE_MULTIBYTE)
|
#if defined (HANDLE_MULTIBYTE)
|
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
|
if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
|
{
|
{
|
int j, l;
|
int j, l;
|
for (j = 0, l = strlen (cxt->mb); j < l; )
|
for (j = 0, l = strlen (cxt->mb); j < l; )
|
cxt->search_string[cxt->search_string_index++] = cxt->mb[j++];
|
cxt->search_string[cxt->search_string_index++] = cxt->mb[j++];
|
}
|
}
|
else
|
else
|
#endif
|
#endif
|
cxt->search_string[cxt->search_string_index++] = c;
|
cxt->search_string[cxt->search_string_index++] = c;
|
cxt->search_string[cxt->search_string_index] = '\0';
|
cxt->search_string[cxt->search_string_index] = '\0';
|
break;
|
break;
|
}
|
}
|
|
|
for (cxt->sflags &= ~(SF_FOUND|SF_FAILED);; )
|
for (cxt->sflags &= ~(SF_FOUND|SF_FAILED);; )
|
{
|
{
|
limit = cxt->sline_len - cxt->search_string_index + 1;
|
limit = cxt->sline_len - cxt->search_string_index + 1;
|
|
|
/* Search the current line. */
|
/* Search the current line. */
|
while ((cxt->sflags & SF_REVERSE) ? (cxt->sline_index >= 0) : (cxt->sline_index < limit))
|
while ((cxt->sflags & SF_REVERSE) ? (cxt->sline_index >= 0) : (cxt->sline_index < limit))
|
{
|
{
|
if (STREQN (cxt->search_string, cxt->sline + cxt->sline_index, cxt->search_string_index))
|
if (STREQN (cxt->search_string, cxt->sline + cxt->sline_index, cxt->search_string_index))
|
{
|
{
|
cxt->sflags |= SF_FOUND;
|
cxt->sflags |= SF_FOUND;
|
break;
|
break;
|
}
|
}
|
else
|
else
|
cxt->sline_index += cxt->direction;
|
cxt->sline_index += cxt->direction;
|
}
|
}
|
if (cxt->sflags & SF_FOUND)
|
if (cxt->sflags & SF_FOUND)
|
break;
|
break;
|
|
|
/* Move to the next line, but skip new copies of the line
|
/* Move to the next line, but skip new copies of the line
|
we just found and lines shorter than the string we're
|
we just found and lines shorter than the string we're
|
searching for. */
|
searching for. */
|
do
|
do
|
{
|
{
|
/* Move to the next line. */
|
/* Move to the next line. */
|
cxt->history_pos += cxt->direction;
|
cxt->history_pos += cxt->direction;
|
|
|
/* At limit for direction? */
|
/* At limit for direction? */
|
if ((cxt->sflags & SF_REVERSE) ? (cxt->history_pos < 0) : (cxt->history_pos == cxt->hlen))
|
if ((cxt->sflags & SF_REVERSE) ? (cxt->history_pos < 0) : (cxt->history_pos == cxt->hlen))
|
{
|
{
|
cxt->sflags |= SF_FAILED;
|
cxt->sflags |= SF_FAILED;
|
break;
|
break;
|
}
|
}
|
|
|
/* We will need these later. */
|
/* We will need these later. */
|
cxt->sline = cxt->lines[cxt->history_pos];
|
cxt->sline = cxt->lines[cxt->history_pos];
|
cxt->sline_len = strlen (cxt->sline);
|
cxt->sline_len = strlen (cxt->sline);
|
}
|
}
|
while ((cxt->prev_line_found && STREQ (cxt->prev_line_found, cxt->lines[cxt->history_pos])) ||
|
while ((cxt->prev_line_found && STREQ (cxt->prev_line_found, cxt->lines[cxt->history_pos])) ||
|
(cxt->search_string_index > cxt->sline_len));
|
(cxt->search_string_index > cxt->sline_len));
|
|
|
if (cxt->sflags & SF_FAILED)
|
if (cxt->sflags & SF_FAILED)
|
break;
|
break;
|
|
|
/* Now set up the line for searching... */
|
/* Now set up the line for searching... */
|
cxt->sline_index = (cxt->sflags & SF_REVERSE) ? cxt->sline_len - cxt->search_string_index : 0;
|
cxt->sline_index = (cxt->sflags & SF_REVERSE) ? cxt->sline_len - cxt->search_string_index : 0;
|
}
|
}
|
|
|
if (cxt->sflags & SF_FAILED)
|
if (cxt->sflags & SF_FAILED)
|
{
|
{
|
/* We cannot find the search string. Ding the bell. */
|
/* We cannot find the search string. Ding the bell. */
|
rl_ding ();
|
rl_ding ();
|
cxt->history_pos = cxt->last_found_line;
|
cxt->history_pos = cxt->last_found_line;
|
return 1;
|
return 1;
|
}
|
}
|
|
|
/* We have found the search string. Just display it. But don't
|
/* We have found the search string. Just display it. But don't
|
actually move there in the history list until the user accepts
|
actually move there in the history list until the user accepts
|
the location. */
|
the location. */
|
if (cxt->sflags & SF_FOUND)
|
if (cxt->sflags & SF_FOUND)
|
{
|
{
|
cxt->prev_line_found = cxt->lines[cxt->history_pos];
|
cxt->prev_line_found = cxt->lines[cxt->history_pos];
|
rl_replace_line (cxt->lines[cxt->history_pos], 0);
|
rl_replace_line (cxt->lines[cxt->history_pos], 0);
|
rl_point = cxt->sline_index;
|
rl_point = cxt->sline_index;
|
cxt->last_found_line = cxt->history_pos;
|
cxt->last_found_line = cxt->history_pos;
|
rl_display_search (cxt->search_string, (cxt->sflags & SF_REVERSE), (cxt->history_pos == cxt->save_line) ? -1 : cxt->history_pos);
|
rl_display_search (cxt->search_string, (cxt->sflags & SF_REVERSE), (cxt->history_pos == cxt->save_line) ? -1 : cxt->history_pos);
|
}
|
}
|
|
|
return 1;
|
return 1;
|
}
|
}
|
|
|
static int
|
static int
|
_rl_isearch_cleanup (cxt, r)
|
_rl_isearch_cleanup (cxt, r)
|
_rl_search_cxt *cxt;
|
_rl_search_cxt *cxt;
|
int r;
|
int r;
|
{
|
{
|
if (r >= 0)
|
if (r >= 0)
|
_rl_isearch_fini (cxt);
|
_rl_isearch_fini (cxt);
|
_rl_scxt_dispose (cxt, 0);
|
_rl_scxt_dispose (cxt, 0);
|
_rl_iscxt = 0;
|
_rl_iscxt = 0;
|
|
|
RL_UNSETSTATE(RL_STATE_ISEARCH);
|
RL_UNSETSTATE(RL_STATE_ISEARCH);
|
|
|
return (r != 0);
|
return (r != 0);
|
}
|
}
|
|
|
/* Search through the history looking for an interactively typed string.
|
/* Search through the history looking for an interactively typed string.
|
This is analogous to i-search. We start the search in the current line.
|
This is analogous to i-search. We start the search in the current line.
|
DIRECTION is which direction to search; >= 0 means forward, < 0 means
|
DIRECTION is which direction to search; >= 0 means forward, < 0 means
|
backwards. */
|
backwards. */
|
static int
|
static int
|
rl_search_history (direction, invoking_key)
|
rl_search_history (direction, invoking_key)
|
int direction, invoking_key;
|
int direction, invoking_key;
|
{
|
{
|
_rl_search_cxt *cxt; /* local for now, but saved globally */
|
_rl_search_cxt *cxt; /* local for now, but saved globally */
|
int c, r;
|
int c, r;
|
|
|
RL_SETSTATE(RL_STATE_ISEARCH);
|
RL_SETSTATE(RL_STATE_ISEARCH);
|
cxt = _rl_isearch_init (direction);
|
cxt = _rl_isearch_init (direction);
|
|
|
rl_display_search (cxt->search_string, (cxt->sflags & SF_REVERSE), -1);
|
rl_display_search (cxt->search_string, (cxt->sflags & SF_REVERSE), -1);
|
|
|
/* If we are using the callback interface, all we do is set up here and
|
/* If we are using the callback interface, all we do is set up here and
|
return. The key is that we leave RL_STATE_ISEARCH set. */
|
return. The key is that we leave RL_STATE_ISEARCH set. */
|
if (RL_ISSTATE (RL_STATE_CALLBACK))
|
if (RL_ISSTATE (RL_STATE_CALLBACK))
|
return (0);
|
return (0);
|
|
|
r = -1;
|
r = -1;
|
for (;;)
|
for (;;)
|
{
|
{
|
c = _rl_search_getchar (cxt);
|
c = _rl_search_getchar (cxt);
|
/* We might want to handle EOF here (c == 0) */
|
/* We might want to handle EOF here (c == 0) */
|
r = _rl_isearch_dispatch (cxt, cxt->lastc);
|
r = _rl_isearch_dispatch (cxt, cxt->lastc);
|
if (r <= 0)
|
if (r <= 0)
|
break;
|
break;
|
}
|
}
|
|
|
/* The searching is over. The user may have found the string that she
|
/* The searching is over. The user may have found the string that she
|
was looking for, or else she may have exited a failing search. If
|
was looking for, or else she may have exited a failing search. If
|
LINE_INDEX is -1, then that shows that the string searched for was
|
LINE_INDEX is -1, then that shows that the string searched for was
|
not found. We use this to determine where to place rl_point. */
|
not found. We use this to determine where to place rl_point. */
|
return (_rl_isearch_cleanup (cxt, r));
|
return (_rl_isearch_cleanup (cxt, r));
|
}
|
}
|
|
|
#if defined (READLINE_CALLBACKS)
|
#if defined (READLINE_CALLBACKS)
|
/* Called from the callback functions when we are ready to read a key. The
|
/* Called from the callback functions when we are ready to read a key. The
|
callback functions know to call this because RL_ISSTATE(RL_STATE_ISEARCH).
|
callback functions know to call this because RL_ISSTATE(RL_STATE_ISEARCH).
|
If _rl_isearch_dispatch finishes searching, this function is responsible
|
If _rl_isearch_dispatch finishes searching, this function is responsible
|
for turning off RL_STATE_ISEARCH, which it does using _rl_isearch_cleanup. */
|
for turning off RL_STATE_ISEARCH, which it does using _rl_isearch_cleanup. */
|
int
|
int
|
_rl_isearch_callback (cxt)
|
_rl_isearch_callback (cxt)
|
_rl_search_cxt *cxt;
|
_rl_search_cxt *cxt;
|
{
|
{
|
int c, r;
|
int c, r;
|
|
|
c = _rl_search_getchar (cxt);
|
c = _rl_search_getchar (cxt);
|
/* We might want to handle EOF here */
|
/* We might want to handle EOF here */
|
r = _rl_isearch_dispatch (cxt, cxt->lastc);
|
r = _rl_isearch_dispatch (cxt, cxt->lastc);
|
|
|
return (r <= 0) ? _rl_isearch_cleanup (cxt, r) : 0;
|
return (r <= 0) ? _rl_isearch_cleanup (cxt, r) : 0;
|
}
|
}
|
#endif
|
#endif
|
|
|
