1/*-
2 * Copyright (c) 1992 Henry Spencer.
3 * Copyright (c) 1992, 1993
4 *	The Regents of the University of California.  All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * Henry Spencer of the University of Toronto.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 *	@(#)regex.h	8.2 (Berkeley) 1/3/94
34 * $FreeBSD$
35 */
36
37#ifndef _REGEX_H_
38#define	_REGEX_H_
39
40#include <sys/cdefs.h>
41#include <sys/_types.h>
42
43/* types */
44typedef	__off_t		regoff_t;
45
46#ifndef _SIZE_T_DECLARED
47typedef	__size_t	size_t;
48#define	_SIZE_T_DECLARED
49#endif
50
51typedef struct {
52	int re_magic;
53	size_t re_nsub;		/* number of parenthesized subexpressions */
54	const char *re_endp;	/* end pointer for REG_PEND */
55	struct re_guts *re_g;	/* none of your business :-) */
56} regex_t;
57
58typedef struct {
59	regoff_t rm_so;		/* start of match */
60	regoff_t rm_eo;		/* end of match */
61} regmatch_t;
62
63/* regcomp() flags */
64#define	REG_BASIC	0000
65#define	REG_EXTENDED	0001
66#define	REG_ICASE	0002
67#define	REG_NOSUB	0004
68#define	REG_NEWLINE	0010
69#define	REG_NOSPEC	0020
70#define	REG_PEND	0040
71#define	REG_DUMP	0200
72
73/* regerror() flags */
74#define	REG_ENOSYS	(-1)
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_ILLSEQ	17
92#define	REG_ATOI	255	/* convert name to number (!) */
93#define	REG_ITOA	0400	/* convert number to name (!) */
94
95/* regexec() flags */
96#define	REG_NOTBOL	00001
97#define	REG_NOTEOL	00002
98#define	REG_STARTEND	00004
99#define	REG_TRACE	00400	/* tracing of execution */
100#define	REG_LARGE	01000	/* force large representation */
101#define	REG_BACKR	02000	/* force use of backref code */
102
103__BEGIN_DECLS
104int	regcomp(regex_t * __restrict, const char * __restrict, int);
105size_t	regerror(int, const regex_t * __restrict, char * __restrict, size_t);
106/*
107 * XXX forth parameter should be `regmatch_t [__restrict]', but isn't because
108 * of a bug in GCC 3.2 (when -std=c99 is specified) which perceives this as a
109 * syntax error.
110 */
111int	regexec(const regex_t * __restrict, const char * __restrict, size_t,
112	    regmatch_t * __restrict, int);
113void	regfree(regex_t *);
114__END_DECLS
115
116#endif /* !_REGEX_H_ */
117