/*-

 * Copyright (c) 1992 Henry Spencer.

 * Copyright (c) 1992, 1993

 *	The Regents of the University of California.  All rights reserved.

 *

 * This code is derived from software contributed to Berkeley by

 * Henry Spencer of the University of Toronto.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 4. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *	@(#)regex.h	8.2 (Berkeley) 1/3/94

 * $FreeBSD: src/include/regex.h,v 1.11 2004/07/12 06:07:26 tjr Exp $

 */

#ifndef _REGEX_H_

#define	_REGEX_H_

#include <sys/cdefs.h>

#include <sys/_types.h>

/* types */

typedef	__off_t		regoff_t;

#ifndef _SIZE_T_DECLARED

typedef	__size_t	size_t;

#define	_SIZE_T_DECLARED

#endif

typedef struct {

	int re_magic;

	size_t re_nsub;		/* number of parenthesized subexpressions */

	__const char *re_endp;	/* end pointer for REG_PEND */

	struct re_guts *re_g;	/* none of your business :-) */

} regex_t;

typedef struct {

	regoff_t rm_so;		/* start of match */

	regoff_t rm_eo;		/* end of match */

} regmatch_t;

/* regcomp() flags */

#define	REG_BASIC	0000

#define	REG_EXTENDED	0001

#define	REG_ICASE	0002

#define	REG_NOSUB	0004

#define	REG_NEWLINE	0010

#define	REG_NOSPEC	0020

#define	REG_PEND	0040

#define	REG_DUMP	0200

/* regerror() flags */

#define	REG_ENOSYS	(-1)

#define	REG_NOMATCH	 1

#define	REG_BADPAT	 2

#define	REG_ECOLLATE	 3

#define	REG_ECTYPE	 4

#define	REG_EESCAPE	 5

#define	REG_ESUBREG	 6

#define	REG_EBRACK	 7

#define	REG_EPAREN	 8

#define	REG_EBRACE	 9

#define	REG_BADBR	10

#define	REG_ERANGE	11

#define	REG_ESPACE	12

#define	REG_BADRPT	13

#define	REG_EMPTY	14

#define	REG_ASSERT	15

#define	REG_INVARG	16

#define	REG_ILLSEQ	17

#define	REG_ATOI	255	/* convert name to number (!) */

#define	REG_ITOA	0400	/* convert number to name (!) */

/* regexec() flags */

#define	REG_NOTBOL	00001

#define	REG_NOTEOL	00002

#define	REG_STARTEND	00004

#define	REG_TRACE	00400	/* tracing of execution */

#define	REG_LARGE	01000	/* force large representation */

#define	REG_BACKR	02000	/* force use of backref code */

__BEGIN_DECLS

IMPORT_C int	regcomp(regex_t * __restrict, const char * __restrict, int);

IMPORT_C size_t	regerror(int, const regex_t * __restrict, char * __restrict, size_t);

/*

 * XXX forth parameter should be `regmatch_t [__restrict]', but isn't because

 * of a bug in GCC 3.2 (when -std=c99 is specified) which perceives this as a

 * syntax error.

 */

IMPORT_C int	regexec(const regex_t * __restrict, const char * __restrict, size_t,

	    regmatch_t * __restrict, int);

IMPORT_C void	regfree(regex_t *);

__END_DECLS

#endif /* !_REGEX_H_ */