xref: /freebsd/contrib/nvi/regex/regex.h (revision 3f0164abf32b9b761e0a2cb4bdca3a8b84f156d4)
1 /*	$NetBSD: regex.h,v 1.1.1.2 2008/05/18 14:31:38 aymeric Exp $ */
2 
3 /*-
4  * Copyright (c) 1992 Henry Spencer.
5  * Copyright (c) 1992, 1993
6  *	The Regents of the University of California.  All rights reserved.
7  *
8  * This code is derived from software contributed to Berkeley by
9  * Henry Spencer of the University of Toronto.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. All advertising materials mentioning features or use of this software
20  *    must display the following acknowledgement:
21  *	This product includes software developed by the University of
22  *	California, Berkeley and its contributors.
23  * 4. Neither the name of the University nor the names of its contributors
24  *    may be used to endorse or promote products derived from this software
25  *    without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37  * SUCH DAMAGE.
38  *
39  *	@(#)regex.h	8.1 (Berkeley) 6/2/93
40  */
41 
42 #ifndef _REGEX_H_
43 #define	_REGEX_H_
44 
45 #ifdef __REGEX_PRIVATE
46 #include "config.h"
47 #include "../common/multibyte.h"
48 #endif
49 
50 /* types */
51 typedef off_t regoff_t;
52 
53 typedef struct {
54 	int re_magic;
55 	size_t re_nsub;		/* number of parenthesized subexpressions */
56 	const RCHAR_T *re_endp;	/* end pointer for REG_PEND */
57 	struct re_guts *re_g;	/* none of your business :-) */
58 } regex_t;
59 
60 typedef struct {
61 	regoff_t rm_so;		/* start of match */
62 	regoff_t rm_eo;		/* end of match */
63 } regmatch_t;
64 
65 /* regcomp() flags */
66 #define	REG_BASIC	0000
67 #define	REG_EXTENDED	0001
68 #define	REG_ICASE	0002
69 #define	REG_NOSUB	0004
70 #define	REG_NEWLINE	0010
71 #define	REG_NOSPEC	0020
72 #define	REG_PEND	0040
73 #define	REG_DUMP	0200
74 
75 /* regerror() flags */
76 #define	REG_NOMATCH	 1
77 #define	REG_BADPAT	 2
78 #define	REG_ECOLLATE	 3
79 #define	REG_ECTYPE	 4
80 #define	REG_EESCAPE	 5
81 #define	REG_ESUBREG	 6
82 #define	REG_EBRACK	 7
83 #define	REG_EPAREN	 8
84 #define	REG_EBRACE	 9
85 #define	REG_BADBR	10
86 #define	REG_ERANGE	11
87 #define	REG_ESPACE	12
88 #define	REG_BADRPT	13
89 #define	REG_EMPTY	14
90 #define	REG_ASSERT	15
91 #define	REG_INVARG	16
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 int	regcomp __P((regex_t *, const RCHAR_T *, int));
104 size_t	regerror __P((int, const regex_t *, char *, size_t));
105 int	regexec __P((const regex_t *,
106 	    const RCHAR_T *, size_t, regmatch_t [], int));
107 void	regfree __P((regex_t *));
108 
109 #endif /* !_REGEX_H_ */
110