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netsurf/utils/regex.h

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/*
* Copyright 2019 Vincent Sanders <vince@netxurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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; version 2 of the License.
*
* NetSurf 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef NETSURF_UTILS_REGEX_H_
#define NETSURF_UTILS_REGEX_H_
#include "utils/config.h"
#ifdef HAVE_REGEX
#include <sys/types.h>
#include <regex.h>
#else
#define REG_NOMATCH 1
#define REG_EXTENDED 1
#define REG_ICASE (1 << 1)
#define REG_NEWLINE (1 << 2)
#define REG_NOSUB (1 << 3)
typedef ssize_t regoff_t;
typedef struct {
size_t re_nsub; /* Number of parenthesized subexpressions.*/
} regex_t;
typedef struct {
regoff_t rm_so; /* Byte offset from start of string to start
* of substring.
*/
regoff_t rm_eo; /* Byte offset from start of string of the
* first character after the end of substring.
*/
} regmatch_t;
int regcomp(regex_t *restrict preg, const char *restrictregex, int cflags);
size_t regerror(int errorcode, const regex_t *restrict preg, char *restrict errbuf, size_t errbuf_size);
int regexec(const regex_t *restrict preg, const char *restrict string, size_t nmatch, regmatch_t pmatch[restrict], int eflags);
void regfree(regex_t *preg);
#endif
#endif