1/*	$NetBSD: regex.h,v 1.16 2021/02/23 17:14:42 christos Exp $	*/
2
3/*-
4 * Copyright (c) 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Henry Spencer of the University of Toronto.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)regex.h	8.2 (Berkeley) 1/3/94
35 */
36
37/*-
38 * Copyright (c) 1992 Henry Spencer.
39 *
40 * This code is derived from software contributed to Berkeley by
41 * Henry Spencer of the University of Toronto.
42 *
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
45 * are met:
46 * 1. Redistributions of source code must retain the above copyright
47 *    notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 *    notice, this list of conditions and the following disclaimer in the
50 *    documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 *    must display the following acknowledgement:
53 *	This product includes software developed by the University of
54 *	California, Berkeley and its contributors.
55 * 4. Neither the name of the University nor the names of its contributors
56 *    may be used to endorse or promote products derived from this software
57 *    without specific prior written permission.
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
62 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 * SUCH DAMAGE.
70 *
71 *	@(#)regex.h	8.2 (Berkeley) 1/3/94
72 */
73
74#ifndef _REGEX_H_
75#define	_REGEX_H_
76
77#include <sys/cdefs.h>
78#include <sys/types.h>
79
80/* types */
81typedef off_t regoff_t;
82
83typedef struct {
84	int re_magic;
85	size_t re_nsub;		/* number of parenthesized subexpressions */
86	const char *re_endp;	/* end pointer for REG_PEND */
87	struct re_guts *re_g;	/* none of your business :-) */
88} regex_t;
89
90typedef struct {
91	regoff_t rm_so;		/* start of match */
92	regoff_t rm_eo;		/* end of match */
93} regmatch_t;
94
95/* regcomp() flags */
96#define	REG_BASIC	0000
97#define	REG_EXTENDED	0001
98#define	REG_ICASE	0002
99#define	REG_NOSUB	0004
100#define	REG_NEWLINE	0010
101#define	REG_NOSPEC	0020
102#define	REG_PEND	0040
103#define	REG_DUMP	0200
104#define	REG_GNU		0400
105
106/* regerror() flags */
107#define	REG_NOMATCH	 1
108#define	REG_BADPAT	 2
109#define	REG_ECOLLATE	 3
110#define	REG_ECTYPE	 4
111#define	REG_EESCAPE	 5
112#define	REG_ESUBREG	 6
113#define	REG_EBRACK	 7
114#define	REG_EPAREN	 8
115#define	REG_EBRACE	 9
116#define	REG_BADBR	10
117#define	REG_ERANGE	11
118#define	REG_ESPACE	12
119#define	REG_BADRPT	13
120#define	REG_EMPTY	14
121#define	REG_ASSERT	15
122#define	REG_INVARG	16
123#define	REG_ILLSEQ      17
124#define	REG_ATOI	255	/* convert name to number (!) */
125#define	REG_ITOA	0400	/* convert number to name (!) */
126
127/* regexec() flags */
128#define	REG_NOTBOL	00001
129#define	REG_NOTEOL	00002
130#define	REG_STARTEND	00004
131#define	REG_TRACE	00400	/* tracing of execution */
132#define	REG_LARGE	01000	/* force large representation */
133#define	REG_BACKR	02000	/* force use of backref code */
134
135__BEGIN_DECLS
136int	regcomp(regex_t * __restrict, const char * __restrict, int);
137size_t	regerror(int, const regex_t * __restrict, char * __restrict, size_t);
138int	regexec(const regex_t * __restrict,
139	    const char * __restrict, size_t, regmatch_t [], int);
140void	regfree(regex_t *);
141#ifdef _NETBSD_SOURCE
142ssize_t regnsub(char *, size_t, const char *, const regmatch_t *, const char *);
143ssize_t regasub(char **buf, const char *, const regmatch_t *, const char *);
144#endif
145__END_DECLS
146
147#endif /* !_REGEX_H_ */
148