1/*	$OpenBSD: regex.h,v 1.6 2003/06/02 19:34:12 millert Exp $	*/
2/*	$NetBSD: regex.h,v 1.4.6.1 1996/06/10 18:57:07 explorer Exp $	*/
3
4/*-
5 * Copyright (c) 1992 Henry Spencer.
6 * Copyright (c) 1992, 1993
7 *	The Regents of the University of California.  All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Henry Spencer of the University of Toronto.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)regex.h	8.1 (Berkeley) 6/2/93
37 */
38
39#ifndef _REGEX_H_
40#define	_REGEX_H_
41
42#include <sys/cdefs.h>
43#include <sys/types.h>
44
45/* types */
46typedef off_t regoff_t;
47
48typedef struct {
49	int re_magic;
50	size_t re_nsub;		/* number of parenthesized subexpressions */
51	const char *re_endp;	/* end pointer for REG_PEND */
52	struct re_guts *re_g;	/* none of your business :-) */
53} regex_t;
54
55typedef struct {
56	regoff_t rm_so;		/* start of match */
57	regoff_t rm_eo;		/* end of match */
58} regmatch_t;
59
60/* regcomp() flags */
61#define	REG_BASIC	0000
62#define	REG_EXTENDED	0001
63#define	REG_ICASE	0002
64#define	REG_NOSUB	0004
65#define	REG_NEWLINE	0010
66#define	REG_NOSPEC	0020
67#define	REG_PEND	0040
68#define	REG_DUMP	0200
69
70/* regerror() flags */
71#define	REG_NOMATCH	 1
72#define	REG_BADPAT	 2
73#define	REG_ECOLLATE	 3
74#define	REG_ECTYPE	 4
75#define	REG_EESCAPE	 5
76#define	REG_ESUBREG	 6
77#define	REG_EBRACK	 7
78#define	REG_EPAREN	 8
79#define	REG_EBRACE	 9
80#define	REG_BADBR	10
81#define	REG_ERANGE	11
82#define	REG_ESPACE	12
83#define	REG_BADRPT	13
84#define	REG_EMPTY	14
85#define	REG_ASSERT	15
86#define	REG_INVARG	16
87#define	REG_ATOI	255	/* convert name to number (!) */
88#define	REG_ITOA	0400	/* convert number to name (!) */
89
90/* regexec() flags */
91#define	REG_NOTBOL	00001
92#define	REG_NOTEOL	00002
93#define	REG_STARTEND	00004
94#define	REG_TRACE	00400	/* tracing of execution */
95#define	REG_LARGE	01000	/* force large representation */
96#define	REG_BACKR	02000	/* force use of backref code */
97
98__BEGIN_DECLS
99int	regcomp(regex_t *, const char *, int);
100size_t	regerror(int, const regex_t *, char *, size_t);
101int	regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
102void	regfree(regex_t *);
103__END_DECLS
104
105#endif /* !_REGEX_H_ */
106