xref: /386bsd/usr/src/include/nonstd/lastbsd/regex.h (revision a2142627)
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. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *	This product includes software developed by the University of
20  *	California, Berkeley and its contributors.
21  * 4. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *	@(#)regex.h	8.1 (Berkeley) 6/2/93
38  */
39 
40 #ifndef _REGEX_H_
41 #define	_REGEX_H_
42 
43 #include <sys/cdefs.h>
44 
45 #include <compat.h>
46 
47 /* types */
48 typedef off_t regoff_t;
49 
50 typedef struct {
51 	int re_magic;
52 	size_t re_nsub;		/* number of parenthesized subexpressions */
53 	const char *re_endp;	/* end pointer for REG_PEND */
54 	struct re_guts *re_g;	/* none of your business :-) */
55 } regex_t;
56 
57 typedef struct {
58 	regoff_t rm_so;		/* start of match */
59 	regoff_t rm_eo;		/* end of match */
60 } regmatch_t;
61 
62 /* regcomp() flags */
63 #define	REG_BASIC	0000
64 #define	REG_EXTENDED	0001
65 #define	REG_ICASE	0002
66 #define	REG_NOSUB	0004
67 #define	REG_NEWLINE	0010
68 #define	REG_NOSPEC	0020
69 #define	REG_PEND	0040
70 #define	REG_DUMP	0200
71 
72 /* regerror() flags */
73 #define	REG_NOMATCH	 1
74 #define	REG_BADPAT	 2
75 #define	REG_ECOLLATE	 3
76 #define	REG_ECTYPE	 4
77 #define	REG_EESCAPE	 5
78 #define	REG_ESUBREG	 6
79 #define	REG_EBRACK	 7
80 #define	REG_EPAREN	 8
81 #define	REG_EBRACE	 9
82 #define	REG_BADBR	10
83 #define	REG_ERANGE	11
84 #define	REG_ESPACE	12
85 #define	REG_BADRPT	13
86 #define	REG_EMPTY	14
87 #define	REG_ASSERT	15
88 #define	REG_INVARG	16
89 #define	REG_ATOI	255	/* convert name to number (!) */
90 #define	REG_ITOA	0400	/* convert number to name (!) */
91 
92 /* regexec() flags */
93 #define	REG_NOTBOL	00001
94 #define	REG_NOTEOL	00002
95 #define	REG_STARTEND	00004
96 #define	REG_TRACE	00400	/* tracing of execution */
97 #define	REG_LARGE	01000	/* force large representation */
98 #define	REG_BACKR	02000	/* force use of backref code */
99 
100 __BEGIN_DECLS
101 int	regcomp __P((regex_t *, const char *, int));
102 size_t	regerror __P((int, const regex_t *, char *, size_t));
103 int	regexec __P((const regex_t *,
104 	    const char *, size_t, regmatch_t [], int));
105 void	regfree __P((regex_t *));
106 __END_DECLS
107 
108 #endif /* !_REGEX_H_ */
109