1 /*************************************************
2 * Perl-Compatible Regular Expressions *
3 *************************************************/
5 /* PCRE2 is a library of functions to support regular expressions whose syntax
6 and semantics are as close as possible to those of the Perl 5 language.
8 Written by Philip Hazel
9 Original API code Copyright (c) 1997-2012 University of Cambridge
10 New API code Copyright (c) 2016 University of Cambridge
12 -----------------------------------------------------------------------------
13 Redistribution and use in source and binary forms, with or without
14 modification, are permitted provided that the following conditions are met:
16 * Redistributions of source code must retain the above copyright notice,
17 this list of conditions and the following disclaimer.
19 * Redistributions in binary form must reproduce the above copyright
20 notice, this list of conditions and the following disclaimer in the
21 documentation and/or other materials provided with the distribution.
23 * Neither the name of the University of Cambridge nor the names of its
24 contributors may be used to endorse or promote products derived from
25 this software without specific prior written permission.
27 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
28 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 POSSIBILITY OF SUCH DAMAGE.
38 -----------------------------------------------------------------------------
42 /* Have to include stdlib.h in order to ensure that size_t is defined. */
46 /* Allow for C++ users */
52 /* Options, mostly defined by POSIX, but with some extras. */
54 #define REG_ICASE 0x0001 /* Maps to PCRE2_CASELESS */
55 #define REG_NEWLINE 0x0002 /* Maps to PCRE2_MULTILINE */
56 #define REG_NOTBOL 0x0004 /* Maps to PCRE2_NOTBOL */
57 #define REG_NOTEOL 0x0008 /* Maps to PCRE2_NOTEOL */
58 #define REG_DOTALL 0x0010 /* NOT defined by POSIX; maps to PCRE2_DOTALL */
59 #define REG_NOSUB 0x0020 /* Do not report what was matched */
60 #define REG_UTF 0x0040 /* NOT defined by POSIX; maps to PCRE2_UTF */
61 #define REG_STARTEND 0x0080 /* BSD feature: pass subject string by so,eo */
62 #define REG_NOTEMPTY 0x0100 /* NOT defined by POSIX; maps to PCRE2_NOTEMPTY */
63 #define REG_UNGREEDY 0x0200 /* NOT defined by POSIX; maps to PCRE2_UNGREEDY */
64 #define REG_UCP 0x0400 /* NOT defined by POSIX; maps to PCRE2_UCP */
65 #define REG_PEND 0x0800 /* GNU feature: pass end pattern by re_endp */
66 #define REG_NOSPEC 0x1000 /* Maps to PCRE2_LITERAL */
68 /* This is not used by PCRE2, but by defining it we make it easier
69 to slot PCRE2 into existing programs that make POSIX calls. */
71 #define REG_EXTENDED 0
73 /* Error values. Not all these are relevant or used by the wrapper. */
76 REG_ASSERT = 1, /* internal error ? */
77 REG_BADBR, /* invalid repeat counts in {} */
78 REG_BADPAT, /* pattern error */
79 REG_BADRPT, /* ? * + invalid */
80 REG_EBRACE, /* unbalanced {} */
81 REG_EBRACK, /* unbalanced [] */
82 REG_ECOLLATE, /* collation error - not relevant */
83 REG_ECTYPE, /* bad class */
84 REG_EESCAPE, /* bad escape sequence */
85 REG_EMPTY, /* empty expression */
86 REG_EPAREN, /* unbalanced () */
87 REG_ERANGE, /* bad range inside [] */
88 REG_ESIZE, /* expression too big */
89 REG_ESPACE, /* failed to get memory */
90 REG_ESUBREG, /* bad back reference */
91 REG_INVARG, /* bad argument */
92 REG_NOMATCH /* match failed */
96 /* The structure representing a compiled regular expression. It is also used
97 for passing the pattern end pointer when REG_PEND is set. */
108 /* The structure in which a captured offset is returned. */
110 typedef int regoff_t;
117 /* When an application links to a PCRE2 DLL in Windows, the symbols that are
118 imported have to be identified as such. When building PCRE2, the appropriate
119 export settings are needed, and are set in pcre2posix.c before including this
122 #if defined(_WIN32) && !defined(PCRE2_STATIC) && !defined(PCRE2POSIX_EXP_DECL)
123 # define PCRE2POSIX_EXP_DECL extern __declspec(dllimport)
124 # define PCRE2POSIX_EXP_DEFN __declspec(dllimport)
127 /* By default, we use the standard "extern" declarations. */
129 #ifndef PCRE2POSIX_EXP_DECL
131 # define PCRE2POSIX_EXP_DECL extern "C"
132 # define PCRE2POSIX_EXP_DEFN extern "C"
134 # define PCRE2POSIX_EXP_DECL extern
135 # define PCRE2POSIX_EXP_DEFN extern
141 PCRE2POSIX_EXP_DECL int regcomp(regex_t *, const char *, int);
142 PCRE2POSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t,
144 PCRE2POSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t);
145 PCRE2POSIX_EXP_DECL void regfree(regex_t *);
151 /* End of pcre2posix.h */