regex.h revision 1.3
1/*	$OpenBSD: regex.h,v 1.3 1997/09/21 10:45:48 niklas 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. All advertising materials mentioning features or use of this software
21 *    must display the following acknowledgement:
22 *	This product includes software developed by the University of
23 *	California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 *	@(#)regex.h	8.1 (Berkeley) 6/2/93
41 */
42
43#ifndef _REGEX_H_
44#define	_REGEX_H_
45
46#include <sys/cdefs.h>
47#include <sys/types.h>
48
49/* types */
50typedef off_t regoff_t;
51
52typedef struct {
53	int re_magic;
54	size_t re_nsub;		/* number of parenthesized subexpressions */
55	const char *re_endp;	/* end pointer for REG_PEND */
56	struct re_guts *re_g;	/* none of your business :-) */
57} regex_t;
58
59typedef struct {
60	regoff_t rm_so;		/* start of match */
61	regoff_t rm_eo;		/* end of match */
62} regmatch_t;
63
64/* regcomp() flags */
65#define	REG_BASIC	0000
66#define	REG_EXTENDED	0001
67#define	REG_ICASE	0002
68#define	REG_NOSUB	0004
69#define	REG_NEWLINE	0010
70#define	REG_NOSPEC	0020
71#define	REG_PEND	0040
72#define	REG_DUMP	0200
73
74/* regerror() flags */
75#define	REG_NOMATCH	 1
76#define	REG_BADPAT	 2
77#define	REG_ECOLLATE	 3
78#define	REG_ECTYPE	 4
79#define	REG_EESCAPE	 5
80#define	REG_ESUBREG	 6
81#define	REG_EBRACK	 7
82#define	REG_EPAREN	 8
83#define	REG_EBRACE	 9
84#define	REG_BADBR	10
85#define	REG_ERANGE	11
86#define	REG_ESPACE	12
87#define	REG_BADRPT	13
88#define	REG_EMPTY	14
89#define	REG_ASSERT	15
90#define	REG_INVARG	16
91#define	REG_ATOI	255	/* convert name to number (!) */
92#define	REG_ITOA	0400	/* convert number to name (!) */
93
94/* regexec() flags */
95#define	REG_NOTBOL	00001
96#define	REG_NOTEOL	00002
97#define	REG_STARTEND	00004
98#define	REG_TRACE	00400	/* tracing of execution */
99#define	REG_LARGE	01000	/* force large representation */
100#define	REG_BACKR	02000	/* force use of backref code */
101
102__BEGIN_DECLS
103int	regcomp __P((regex_t *, const char *, int));
104size_t	regerror __P((int, const regex_t *, char *, size_t));
105int	regexec __P((const regex_t *,
106	    const char *, size_t, regmatch_t [], int));
107void	regfree __P((regex_t *));
108__END_DECLS
109
110#endif /* !_REGEX_H_ */
111