2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or (at
5 * your option) any later version.
7 * This program is distributed in the hope that it will be useful, but
8 * WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
17 * Copyright © 2006 Pierre Habouzit
20 * This file is part of mutt-ng, see http://www.muttng.org/.
21 * It's licensed under the GNU General Public License,
22 * please see the file GPL in the top level source directory.
27 rx_t *rx_compile(const char *s, int flags)
29 rx_t *pp = p_new(rx_t, 1);
31 pp->pattern = m_strdup(s);
32 pp->rx = p_new(regex_t, 1);
34 if (REGCOMP(pp->rx, NONULL(s), flags) != 0) {
41 void rx_set_template(rx_t *rx, const char *tpl)
45 m_strreplace(&rx->template, tpl);
48 while ((p = strchr(p, '%'))) {
50 int n = strtol(p, (char **)&p, 10);
51 rx->nmatch = MAX(n, rx->nmatch);
58 rx->nmatch++; /* match 0 is always the whole expr */
61 void rx_delete(rx_t **p)
63 p_delete(&(*p)->pattern);
66 p_delete(&(*p)->template);
70 int rx_list_match(rx_t *l, const char *s)
76 if (!REGEXEC(l->rx, s))
84 int rx_list_match2(rx_t *l, const char *s, char *dst, int dlen)
86 static regmatch_t *pmatch = NULL;
87 static int nmatch = 0;
93 for (; l; l = l->next) {
94 if (l->nmatch > nmatch) {
95 p_realloc(&pmatch, l->nmatch);
99 if (regexec(l->rx, s, l->nmatch, pmatch, 0) == 0) {
100 /* Copy template into dst, with substitutions. */
101 const char *p = l->template, *q;
103 for (q = strchr(p, '%'); q; q = strchr(p + 1, '%')) {
106 pos += m_strncpy(dst + pos, dlen - pos, p, q - p);
108 if (!isdigit((unsigned char)q[1])) {
109 p = q + (q[1] == '%');
113 n = strtol(q + 1, (char **)&p, 10); /* find pmatch index */
114 pos += m_strncpy(dst + pos, dlen - pos, s + pmatch[n].rm_so,
115 pmatch[n].rm_eo - pmatch[n].rm_so);
118 pos += m_strcpy(dst + pos, dlen - pos, p);
126 rx_t **rx_lookup(rx_t **l, const char *pat)
128 if (m_strisempty(pat))
132 if (!m_strcmp((*l)->pattern, pat))
140 int rx_sanitize_string(char *dst, ssize_t n, const char *src)
146 /* these characters must be escaped in regular expressions */
147 if (strchr("^.[$()|*+?{\\", *src)) {
161 return *src ? -1 : 0;