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