Tristan Matthews | 0461646 | 2013-11-14 16:09:34 -0500 | [diff] [blame] | 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) 1997-2009 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, mostly defined by POSIX, but with some extras. */ |
| 54 | |
| 55 | #define REG_ICASE 0x0001 /* Maps to PCRE_CASELESS */ |
| 56 | #define REG_NEWLINE 0x0002 /* Maps to PCRE_MULTILINE */ |
| 57 | #define REG_NOTBOL 0x0004 /* Maps to PCRE_NOTBOL */ |
| 58 | #define REG_NOTEOL 0x0008 /* Maps to PCRE_NOTEOL */ |
| 59 | #define REG_DOTALL 0x0010 /* NOT defined by POSIX; maps to PCRE_DOTALL */ |
| 60 | #define REG_NOSUB 0x0020 /* Maps to PCRE_NO_AUTO_CAPTURE */ |
| 61 | #define REG_UTF8 0x0040 /* NOT defined by POSIX; maps to PCRE_UTF8 */ |
| 62 | #define REG_STARTEND 0x0080 /* BSD feature: pass subject string by so,eo */ |
| 63 | #define REG_NOTEMPTY 0x0100 /* NOT defined by POSIX; maps to PCRE_NOTEMPTY */ |
| 64 | #define REG_UNGREEDY 0x0200 /* NOT defined by POSIX; maps to PCRE_UNGREEDY */ |
| 65 | #define REG_UCP 0x0400 /* NOT defined by POSIX; maps to PCRE_UCP */ |
| 66 | |
| 67 | /* This is not used by PCRE, but by defining it we make it easier |
| 68 | to slot PCRE into existing programs that make POSIX calls. */ |
| 69 | |
| 70 | #define REG_EXTENDED 0 |
| 71 | |
| 72 | /* Error values. Not all these are relevant or used by the wrapper. */ |
| 73 | |
| 74 | enum { |
| 75 | REG_ASSERT = 1, /* internal error ? */ |
| 76 | REG_BADBR, /* invalid repeat counts in {} */ |
| 77 | REG_BADPAT, /* pattern error */ |
| 78 | REG_BADRPT, /* ? * + invalid */ |
| 79 | REG_EBRACE, /* unbalanced {} */ |
| 80 | REG_EBRACK, /* unbalanced [] */ |
| 81 | REG_ECOLLATE, /* collation error - not relevant */ |
| 82 | REG_ECTYPE, /* bad class */ |
| 83 | REG_EESCAPE, /* bad escape sequence */ |
| 84 | REG_EMPTY, /* empty expression */ |
| 85 | REG_EPAREN, /* unbalanced () */ |
| 86 | REG_ERANGE, /* bad range inside [] */ |
| 87 | REG_ESIZE, /* expression too big */ |
| 88 | REG_ESPACE, /* failed to get memory */ |
| 89 | REG_ESUBREG, /* bad back reference */ |
| 90 | REG_INVARG, /* bad argument */ |
| 91 | REG_NOMATCH /* match failed */ |
| 92 | }; |
| 93 | |
| 94 | |
| 95 | /* The structure representing a compiled regular expression. */ |
| 96 | |
| 97 | typedef struct { |
| 98 | void *re_pcre; |
| 99 | size_t re_nsub; |
| 100 | size_t re_erroffset; |
| 101 | } regex_t; |
| 102 | |
| 103 | /* The structure in which a captured offset is returned. */ |
| 104 | |
| 105 | typedef int regoff_t; |
| 106 | |
| 107 | typedef struct { |
| 108 | regoff_t rm_so; |
| 109 | regoff_t rm_eo; |
| 110 | } regmatch_t; |
| 111 | |
| 112 | /* When an application links to a PCRE DLL in Windows, the symbols that are |
| 113 | imported have to be identified as such. When building PCRE, the appropriate |
| 114 | export settings are needed, and are set in pcreposix.c before including this |
| 115 | file. */ |
| 116 | |
| 117 | #if defined(_WIN32) && !defined(PCRE_STATIC) && !defined(PCREPOSIX_EXP_DECL) |
| 118 | # define PCREPOSIX_EXP_DECL extern __declspec(dllimport) |
| 119 | # define PCREPOSIX_EXP_DEFN __declspec(dllimport) |
| 120 | #endif |
| 121 | |
| 122 | /* By default, we use the standard "extern" declarations. */ |
| 123 | |
| 124 | #ifndef PCREPOSIX_EXP_DECL |
| 125 | # ifdef __cplusplus |
| 126 | # define PCREPOSIX_EXP_DECL extern "C" |
| 127 | # define PCREPOSIX_EXP_DEFN extern "C" |
| 128 | # else |
| 129 | # define PCREPOSIX_EXP_DECL extern |
| 130 | # define PCREPOSIX_EXP_DEFN extern |
| 131 | # endif |
| 132 | #endif |
| 133 | |
| 134 | /* The functions */ |
| 135 | |
| 136 | PCREPOSIX_EXP_DECL int regcomp(regex_t *, const char *, int); |
| 137 | PCREPOSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t, |
| 138 | regmatch_t *, int); |
| 139 | PCREPOSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t); |
| 140 | PCREPOSIX_EXP_DECL void regfree(regex_t *); |
| 141 | |
| 142 | #ifdef __cplusplus |
| 143 | } /* extern "C" */ |
| 144 | #endif |
| 145 | |
| 146 | #endif /* End of pcreposix.h */ |