mirror of https://github.com/MidnightCommander/mc
124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/*
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Search text engine.
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Plain search
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Copyright (C) 2009, 2011
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The Free Software Foundation, Inc.
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Written by:
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Slava Zanko <slavazanko@gmail.com>, 2009.
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This file is part of the Midnight Commander.
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The Midnight Commander is free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of the License,
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or (at your option) any later version.
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The Midnight Commander 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "lib/global.h"
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#include "lib/strutil.h"
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#include "lib/search.h"
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#include "lib/charsets.h"
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#include "internal.h"
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/*** global variables ****************************************************************************/
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/*** file scope macro definitions ****************************************************************/
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/*** file scope type declarations ****************************************************************/
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/*** file scope variables ************************************************************************/
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/*** file scope functions ************************************************************************/
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static GString *
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mc_search__normal_translate_to_regex (const GString * astr)
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{
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const char *str = astr->str;
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GString *buff;
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gsize loop;
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buff = g_string_sized_new (32);
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for (loop = 0; loop < astr->len; loop++)
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switch (str[loop])
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{
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case '*':
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case '?':
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case ',':
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case '{':
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case '}':
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case '[':
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case ']':
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case '\\':
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case '+':
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case '.':
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case '$':
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case '(':
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case ')':
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case '^':
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case '-':
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case '|':
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g_string_append_c (buff, '\\');
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/* fall through */
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default:
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g_string_append_c (buff, str[loop]);
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break;
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}
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return buff;
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}
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/*** public functions ****************************************************************************/
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void
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mc_search__cond_struct_new_init_normal (const char *charset, mc_search_t * lc_mc_search,
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mc_search_cond_t * mc_search_cond)
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{
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GString *tmp;
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tmp = mc_search__normal_translate_to_regex (mc_search_cond->str);
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g_string_free (mc_search_cond->str, TRUE);
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if (lc_mc_search->whole_words)
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{
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/* NOTE: \b as word boundary doesn't allow search
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* whole words with non-ASCII symbols */
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g_string_prepend (tmp, "(^|[^\\p{L}\\p{N}_])(");
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g_string_append (tmp, ")([^\\p{L}\\p{N}_]|$)");
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}
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mc_search_cond->str = tmp;
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mc_search__cond_struct_new_init_regex (charset, lc_mc_search, mc_search_cond);
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}
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/* --------------------------------------------------------------------------------------------- */
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gboolean
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mc_search__run_normal (mc_search_t * lc_mc_search, const void *user_data,
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gsize start_search, gsize end_search, gsize * found_len)
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{
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return mc_search__run_regex (lc_mc_search, user_data, start_search, end_search, found_len);
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}
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/* --------------------------------------------------------------------------------------------- */
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GString *
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mc_search_normal_prepare_replace_str (mc_search_t * lc_mc_search, GString * replace_str)
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{
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(void) lc_mc_search;
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return g_string_new_len (replace_str->str, replace_str->len);
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}
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