/[pcre]/code/tags/pcre-4.3/pcreposix.h
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Contents of /code/tags/pcre-4.3/pcreposix.h

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Revision 70 - (show annotations) (download)
Sat Feb 24 21:40:20 2007 UTC (7 years, 9 months ago) by nigel
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Tag code/trunk as code/tags/pcre-4.3.

1 /*************************************************
2 * Perl-Compatible Regular Expressions *
3 *************************************************/
4
5 /* Copyright (c) 1997-2003 University of Cambridge */
6
7 #ifndef _PCREPOSIX_H
8 #define _PCREPOSIX_H
9
10 /* This is the header for the POSIX wrapper interface to the PCRE Perl-
11 Compatible Regular Expression library. It defines the things POSIX says should
12 be there. I hope. */
13
14 /* Have to include stdlib.h in order to ensure that size_t is defined. */
15
16 #include <stdlib.h>
17
18 /* Allow for C++ users */
19
20 #ifdef __cplusplus
21 extern "C" {
22 #endif
23
24 /* Options defined by POSIX. */
25
26 #define REG_ICASE 0x01
27 #define REG_NEWLINE 0x02
28 #define REG_NOTBOL 0x04
29 #define REG_NOTEOL 0x08
30
31 /* These are not used by PCRE, but by defining them we make it easier
32 to slot PCRE into existing programs that make POSIX calls. */
33
34 #define REG_EXTENDED 0
35 #define REG_NOSUB 0
36
37 /* Error values. Not all these are relevant or used by the wrapper. */
38
39 enum {
40 REG_ASSERT = 1, /* internal error ? */
41 REG_BADBR, /* invalid repeat counts in {} */
42 REG_BADPAT, /* pattern error */
43 REG_BADRPT, /* ? * + invalid */
44 REG_EBRACE, /* unbalanced {} */
45 REG_EBRACK, /* unbalanced [] */
46 REG_ECOLLATE, /* collation error - not relevant */
47 REG_ECTYPE, /* bad class */
48 REG_EESCAPE, /* bad escape sequence */
49 REG_EMPTY, /* empty expression */
50 REG_EPAREN, /* unbalanced () */
51 REG_ERANGE, /* bad range inside [] */
52 REG_ESIZE, /* expression too big */
53 REG_ESPACE, /* failed to get memory */
54 REG_ESUBREG, /* bad back reference */
55 REG_INVARG, /* bad argument */
56 REG_NOMATCH /* match failed */
57 };
58
59
60 /* The structure representing a compiled regular expression. */
61
62 typedef struct {
63 void *re_pcre;
64 size_t re_nsub;
65 size_t re_erroffset;
66 } regex_t;
67
68 /* The structure in which a captured offset is returned. */
69
70 typedef int regoff_t;
71
72 typedef struct {
73 regoff_t rm_so;
74 regoff_t rm_eo;
75 } regmatch_t;
76
77 /* The functions */
78
79 extern int regcomp(regex_t *, const char *, int);
80 extern int regexec(const regex_t *, const char *, size_t, regmatch_t *, int);
81 extern size_t regerror(int, const regex_t *, char *, size_t);
82 extern void regfree(regex_t *);
83
84 #ifdef __cplusplus
85 } /* extern "C" */
86 #endif
87
88 #endif /* End of pcreposix.h */

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