/[pcre]/code/tags/pcre-5.0/pcreposix.h
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Contents of /code/tags/pcre-5.0/pcreposix.h

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Sat Feb 24 21:40:39 2007 UTC (7 years, 9 months ago) by nigel
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Tag code/trunk as code/tags/pcre-5.0.

1 /*************************************************
2 * Perl-Compatible Regular Expressions *
3 *************************************************/
4
5 #ifndef _PCREPOSIX_H
6 #define _PCREPOSIX_H
7
8 /* This is the header for the POSIX wrapper interface to the PCRE Perl-
9 Compatible Regular Expression library. It defines the things POSIX says should
10 be there. I hope.
11
12 Copyright (c) 1997-2004 University of Cambridge
13
14 -----------------------------------------------------------------------------
15 Redistribution and use in source and binary forms, with or without
16 modification, are permitted provided that the following conditions are met:
17
18 * Redistributions of source code must retain the above copyright notice,
19 this list of conditions and the following disclaimer.
20
21 * Redistributions in binary form must reproduce the above copyright
22 notice, this list of conditions and the following disclaimer in the
23 documentation and/or other materials provided with the distribution.
24
25 * Neither the name of the University of Cambridge nor the names of its
26 contributors may be used to endorse or promote products derived from
27 this software without specific prior written permission.
28
29 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
30 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
33 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
34 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
35 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
36 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
37 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 POSSIBILITY OF SUCH DAMAGE.
40 -----------------------------------------------------------------------------
41 */
42
43 /* Have to include stdlib.h in order to ensure that size_t is defined. */
44
45 #include <stdlib.h>
46
47 /* Allow for C++ users */
48
49 #ifdef __cplusplus
50 extern "C" {
51 #endif
52
53 /* Options defined by POSIX. */
54
55 #define REG_ICASE 0x01
56 #define REG_NEWLINE 0x02
57 #define REG_NOTBOL 0x04
58 #define REG_NOTEOL 0x08
59
60 /* These are not used by PCRE, but by defining them we make it easier
61 to slot PCRE into existing programs that make POSIX calls. */
62
63 #define REG_EXTENDED 0
64 #define REG_NOSUB 0
65
66 /* Error values. Not all these are relevant or used by the wrapper. */
67
68 enum {
69 REG_ASSERT = 1, /* internal error ? */
70 REG_BADBR, /* invalid repeat counts in {} */
71 REG_BADPAT, /* pattern error */
72 REG_BADRPT, /* ? * + invalid */
73 REG_EBRACE, /* unbalanced {} */
74 REG_EBRACK, /* unbalanced [] */
75 REG_ECOLLATE, /* collation error - not relevant */
76 REG_ECTYPE, /* bad class */
77 REG_EESCAPE, /* bad escape sequence */
78 REG_EMPTY, /* empty expression */
79 REG_EPAREN, /* unbalanced () */
80 REG_ERANGE, /* bad range inside [] */
81 REG_ESIZE, /* expression too big */
82 REG_ESPACE, /* failed to get memory */
83 REG_ESUBREG, /* bad back reference */
84 REG_INVARG, /* bad argument */
85 REG_NOMATCH /* match failed */
86 };
87
88
89 /* The structure representing a compiled regular expression. */
90
91 typedef struct {
92 void *re_pcre;
93 size_t re_nsub;
94 size_t re_erroffset;
95 } regex_t;
96
97 /* The structure in which a captured offset is returned. */
98
99 typedef int regoff_t;
100
101 typedef struct {
102 regoff_t rm_so;
103 regoff_t rm_eo;
104 } regmatch_t;
105
106 /* The functions */
107
108 extern int regcomp(regex_t *, const char *, int);
109 extern int regexec(const regex_t *, const char *, size_t, regmatch_t *, int);
110 extern size_t regerror(int, const regex_t *, char *, size_t);
111 extern void regfree(regex_t *);
112
113 #ifdef __cplusplus
114 } /* extern "C" */
115 #endif
116
117 #endif /* End of pcreposix.h */

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