/[pcre]/code/trunk/pcreposix.h
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Fri Mar 2 13:10:43 2007 UTC (7 years, 6 months ago) by nigel
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1 nigel 3 /*************************************************
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 nigel 75 be there. I hope.
11 nigel 3
12 nigel 87 Copyright (c) 1997-2006 University of Cambridge
13 nigel 75
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 nigel 3 /* Have to include stdlib.h in order to ensure that size_t is defined. */
44    
45     #include <stdlib.h>
46    
47 nigel 15 /* Allow for C++ users */
48    
49     #ifdef __cplusplus
50     extern "C" {
51     #endif
52    
53 nigel 87 /* Options, mostly defined by POSIX, but with a couple of extras. */
54 nigel 3
55 nigel 87 #define REG_ICASE 0x0001
56     #define REG_NEWLINE 0x0002
57     #define REG_NOTBOL 0x0004
58     #define REG_NOTEOL 0x0008
59     #define REG_DOTALL 0x0010 /* NOT defined by POSIX. */
60     #define REG_NOSUB 0x0020
61     #define REG_UTF8 0x0040 /* NOT defined by POSIX. */
62 nigel 3
63 nigel 87 /* This is not used by PCRE, but by defining it we make it easier
64 nigel 43 to slot PCRE into existing programs that make POSIX calls. */
65    
66     #define REG_EXTENDED 0
67    
68 nigel 3 /* Error values. Not all these are relevant or used by the wrapper. */
69    
70     enum {
71     REG_ASSERT = 1, /* internal error ? */
72     REG_BADBR, /* invalid repeat counts in {} */
73     REG_BADPAT, /* pattern error */
74     REG_BADRPT, /* ? * + invalid */
75     REG_EBRACE, /* unbalanced {} */
76     REG_EBRACK, /* unbalanced [] */
77     REG_ECOLLATE, /* collation error - not relevant */
78     REG_ECTYPE, /* bad class */
79     REG_EESCAPE, /* bad escape sequence */
80     REG_EMPTY, /* empty expression */
81     REG_EPAREN, /* unbalanced () */
82     REG_ERANGE, /* bad range inside [] */
83     REG_ESIZE, /* expression too big */
84     REG_ESPACE, /* failed to get memory */
85     REG_ESUBREG, /* bad back reference */
86     REG_INVARG, /* bad argument */
87     REG_NOMATCH /* match failed */
88     };
89    
90    
91     /* The structure representing a compiled regular expression. */
92    
93     typedef struct {
94     void *re_pcre;
95     size_t re_nsub;
96     size_t re_erroffset;
97     } regex_t;
98    
99     /* The structure in which a captured offset is returned. */
100    
101     typedef int regoff_t;
102    
103     typedef struct {
104     regoff_t rm_so;
105     regoff_t rm_eo;
106     } regmatch_t;
107    
108 nigel 89 /* Win32 uses DLL by default; it needs special stuff for exported functions
109     when building PCRE. */
110    
111     #ifndef PCRE_DATA_SCOPE
112     #ifdef _WIN32
113     # ifdef PCRE_DEFINITION
114     # ifdef DLL_EXPORT
115     # define PCRE_DATA_SCOPE __declspec(dllexport)
116     # endif
117     # else
118     # ifndef PCRE_STATIC
119     # define PCRE_DATA_SCOPE extern __declspec(dllimport)
120     # endif
121     # endif
122     #endif
123     #endif
124    
125     /* Otherwise, we use the standard "extern". */
126    
127     #ifndef PCRE_DATA_SCOPE
128     # ifdef __cplusplus
129     # define PCRE_DATA_SCOPE extern "C"
130     # else
131     # define PCRE_DATA_SCOPE extern
132     # endif
133     #endif
134    
135 nigel 3 /* The functions */
136    
137 nigel 87 PCRE_DATA_SCOPE int regcomp(regex_t *, const char *, int);
138     PCRE_DATA_SCOPE int regexec(const regex_t *, const char *, size_t,
139     regmatch_t *, int);
140     PCRE_DATA_SCOPE size_t regerror(int, const regex_t *, char *, size_t);
141     PCRE_DATA_SCOPE void regfree(regex_t *);
142 nigel 3
143 nigel 15 #ifdef __cplusplus
144     } /* extern "C" */
145     #endif
146    
147 nigel 3 #endif /* End of pcreposix.h */

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