1/* $OpenBSD: regex.h,v 1.7 2012/12/05 23:19:57 deraadt 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/types.h>
43
44/* types */
45typedef off_t regoff_t;
46
47typedef struct {
48 int re_magic;
49 size_t re_nsub; /* number of parenthesized subexpressions */
50 const char *re_endp; /* end pointer for REG_PEND */
51 struct re_guts *re_g; /* none of your business :-) */
52} regex_t;
53
54typedef struct {
55 regoff_t rm_so; /* start of match */
56 regoff_t rm_eo; /* end of match */
57} regmatch_t;
58
59/* regcomp() flags */
60#define REG_BASIC 0000
61#define REG_EXTENDED 0001
62#define REG_ICASE 0002
63#define REG_NOSUB 0004
64#define REG_NEWLINE 0010
65#define REG_NOSPEC 0020
66#define REG_PEND 0040
67#define REG_DUMP 0200
68
69/* regerror() flags */
70#define REG_NOMATCH 1
71#define REG_BADPAT 2
72#define REG_ECOLLATE 3
73#define REG_ECTYPE 4
74#define REG_EESCAPE 5
75#define REG_ESUBREG 6
76#define REG_EBRACK 7
77#define REG_EPAREN 8
78#define REG_EBRACE 9
79#define REG_BADBR 10
80#define REG_ERANGE 11
81#define REG_ESPACE 12
82#define REG_BADRPT 13
83#define REG_EMPTY 14
84#define REG_ASSERT 15
85#define REG_INVARG 16
86#define REG_ATOI 255 /* convert name to number (!) */
87#define REG_ITOA 0400 /* convert number to name (!) */
88
89/* regexec() flags */
90#define REG_NOTBOL 00001
91#define REG_NOTEOL 00002
92#define REG_STARTEND 00004
93#define REG_TRACE 00400 /* tracing of execution */
94#define REG_LARGE 01000 /* force large representation */
95#define REG_BACKR 02000 /* force use of backref code */
96
97__BEGIN_DECLS
98int regcomp(regex_t *, const char *, int);
99size_t regerror(int, const regex_t *, char *, size_t);
100int regexec(const regex_t *, const char *, size_t, regmatch_t [], int);
101void regfree(regex_t *);
102__END_DECLS
103
104#endif /* !_REGEX_H_ */