xref: /minix3/external/bsd/nvi/dist/regex/regex.h (revision 84d9c625bfea59e274550651111ae9edfdc40fbd)
1 /*	$NetBSD: regex.h,v 1.2 2013/11/22 15:52:06 christos Exp $	*/
2 /*-
3  * Copyright (c) 1992 Henry Spencer.
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. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  *
38  *	@(#)regex.h	8.1 (Berkeley) 6/2/93
39  */
40 
41 #ifndef _REGEX_H_
42 #define	_REGEX_H_
43 
44 #ifdef __REGEX_PRIVATE
45 #include "config.h"
46 #include "port.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