xref: /freebsd/contrib/llvm-project/llvm/lib/Support/regex_impl.h (revision f4beb2edcde327a49f034da26bb2e5aadcec922a)
1  /*-
2   * This code is derived from OpenBSD's libc/regex, original license follows:
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. Neither the name of the University nor the names of its contributors
20   *    may be used to endorse or promote products derived from this software
21   *    without specific prior written permission.
22   *
23   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33   * SUCH DAMAGE.
34   *
35   *	@(#)regex.h	8.1 (Berkeley) 6/2/93
36   */
37  
38  #ifndef _REGEX_H_
39  #define	_REGEX_H_
40  
41  #include <sys/types.h>
42  typedef off_t llvm_regoff_t;
43  typedef struct {
44    llvm_regoff_t rm_so;		/* start of match */
45    llvm_regoff_t rm_eo;		/* end of match */
46  } llvm_regmatch_t;
47  
48  typedef struct llvm_regex {
49    int re_magic;
50    size_t re_nsub;		/* number of parenthesized subexpressions */
51    const char *re_endp;	/* end pointer for REG_PEND */
52    struct re_guts *re_g;	/* none of your business :-) */
53  } llvm_regex_t;
54  
55  /* llvm_regcomp() flags */
56  #define	REG_BASIC	0000
57  #define	REG_EXTENDED	0001
58  #define	REG_ICASE	0002
59  #define	REG_NOSUB	0004
60  #define	REG_NEWLINE	0010
61  #define	REG_NOSPEC	0020
62  #define	REG_PEND	0040
63  #define	REG_DUMP	0200
64  
65  /* llvm_regerror() flags */
66  #define	REG_NOMATCH	 1
67  #define	REG_BADPAT	 2
68  #define	REG_ECOLLATE	 3
69  #define	REG_ECTYPE	 4
70  #define	REG_EESCAPE	 5
71  #define	REG_ESUBREG	 6
72  #define	REG_EBRACK	 7
73  #define	REG_EPAREN	 8
74  #define	REG_EBRACE	 9
75  #define	REG_BADBR	10
76  #define	REG_ERANGE	11
77  #define	REG_ESPACE	12
78  #define	REG_BADRPT	13
79  #define	REG_EMPTY	14
80  #define	REG_ASSERT	15
81  #define	REG_INVARG	16
82  #define	REG_ATOI	255	/* convert name to number (!) */
83  #define	REG_ITOA	0400	/* convert number to name (!) */
84  
85  /* llvm_regexec() flags */
86  #define	REG_NOTBOL	00001
87  #define	REG_NOTEOL	00002
88  #define	REG_STARTEND	00004
89  #define	REG_TRACE	00400	/* tracing of execution */
90  #define	REG_LARGE	01000	/* force large representation */
91  #define	REG_BACKR	02000	/* force use of backref code */
92  
93  #ifdef __cplusplus
94  extern "C" {
95  #endif
96  
97  int	llvm_regcomp(llvm_regex_t *, const char *, int);
98  size_t	llvm_regerror(int, const llvm_regex_t *, char *, size_t);
99  int	llvm_regexec(const llvm_regex_t *, const char *, size_t,
100                       llvm_regmatch_t [], int);
101  void	llvm_regfree(llvm_regex_t *);
102  size_t  llvm_strlcpy(char *dst, const char *src, size_t siz);
103  
104  #ifdef __cplusplus
105  }
106  #endif
107  
108  #endif /* !_REGEX_H_ */
109