/*-

  * 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_ */