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1 /************************************************* |
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2 * Perl-Compatible Regular Expressions * |
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3 *************************************************/ |
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4 |
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5 #ifndef _PCREPOSIX_H |
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6 #define _PCREPOSIX_H |
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7 |
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8 /* This is the header for the POSIX wrapper interface to the PCRE Perl- |
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9 Compatible Regular Expression library. It defines the things POSIX says should |
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10 be there. I hope. |
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11 |
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12 Copyright (c) 1997-2008 University of Cambridge |
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13 |
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14 ----------------------------------------------------------------------------- |
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15 Redistribution and use in source and binary forms, with or without |
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16 modification, are permitted provided that the following conditions are met: |
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17 |
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18 * Redistributions of source code must retain the above copyright notice, |
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19 this list of conditions and the following disclaimer. |
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20 |
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21 * Redistributions in binary form must reproduce the above copyright |
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22 notice, this list of conditions and the following disclaimer in the |
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23 documentation and/or other materials provided with the distribution. |
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24 |
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25 * Neither the name of the University of Cambridge nor the names of its |
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26 contributors may be used to endorse or promote products derived from |
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27 this software without specific prior written permission. |
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28 |
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29 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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30 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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31 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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32 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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33 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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34 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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35 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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36 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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37 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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38 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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39 POSSIBILITY OF SUCH DAMAGE. |
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40 ----------------------------------------------------------------------------- |
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41 */ |
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42 |
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43 /* Have to include stdlib.h in order to ensure that size_t is defined. */ |
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44 |
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45 #include <stdlib.h> |
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46 |
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47 /* Allow for C++ users */ |
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48 |
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49 #ifdef __cplusplus |
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50 extern "C" { |
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51 #endif |
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52 |
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53 /* Options, mostly defined by POSIX, but with a couple of extras. */ |
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54 |
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55 #define REG_ICASE 0x0001 |
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56 #define REG_NEWLINE 0x0002 |
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57 #define REG_NOTBOL 0x0004 |
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58 #define REG_NOTEOL 0x0008 |
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59 #define REG_DOTALL 0x0010 /* NOT defined by POSIX. */ |
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60 #define REG_NOSUB 0x0020 |
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61 #define REG_UTF8 0x0040 /* NOT defined by POSIX. */ |
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62 #define REG_STARTEND 0x0080 /* BSD feature: pass subject string by so,eo */ |
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63 |
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64 /* This is not used by PCRE, but by defining it we make it easier |
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65 to slot PCRE into existing programs that make POSIX calls. */ |
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66 |
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67 #define REG_EXTENDED 0 |
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68 |
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69 /* Error values. Not all these are relevant or used by the wrapper. */ |
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70 |
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71 enum { |
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72 REG_ASSERT = 1, /* internal error ? */ |
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73 REG_BADBR, /* invalid repeat counts in {} */ |
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74 REG_BADPAT, /* pattern error */ |
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75 REG_BADRPT, /* ? * + invalid */ |
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76 REG_EBRACE, /* unbalanced {} */ |
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77 REG_EBRACK, /* unbalanced [] */ |
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78 REG_ECOLLATE, /* collation error - not relevant */ |
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79 REG_ECTYPE, /* bad class */ |
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80 REG_EESCAPE, /* bad escape sequence */ |
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81 REG_EMPTY, /* empty expression */ |
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82 REG_EPAREN, /* unbalanced () */ |
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83 REG_ERANGE, /* bad range inside [] */ |
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84 REG_ESIZE, /* expression too big */ |
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85 REG_ESPACE, /* failed to get memory */ |
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86 REG_ESUBREG, /* bad back reference */ |
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87 REG_INVARG, /* bad argument */ |
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88 REG_NOMATCH /* match failed */ |
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89 }; |
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90 |
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91 |
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92 /* The structure representing a compiled regular expression. */ |
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93 |
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94 typedef struct { |
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95 void *re_pcre; |
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96 size_t re_nsub; |
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97 size_t re_erroffset; |
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98 } regex_t; |
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99 |
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100 /* The structure in which a captured offset is returned. */ |
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101 |
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102 typedef int regoff_t; |
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103 |
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104 typedef struct { |
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105 regoff_t rm_so; |
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106 regoff_t rm_eo; |
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107 } regmatch_t; |
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108 |
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109 /* When an application links to a PCRE DLL in Windows, the symbols that are |
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110 imported have to be identified as such. When building PCRE, the appropriate |
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111 export settings are needed, and are set in pcreposix.c before including this |
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112 file. */ |
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113 |
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114 #if defined(_WIN32) && !defined(PCRE_STATIC) && !defined(PCREPOSIX_EXP_DECL) |
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115 # define PCREPOSIX_EXP_DECL extern __declspec(dllimport) |
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116 # define PCREPOSIX_EXP_DEFN __declspec(dllimport) |
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117 #endif |
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118 |
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119 /* By default, we use the standard "extern" declarations. */ |
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120 |
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121 #ifndef PCREPOSIX_EXP_DECL |
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122 # ifdef __cplusplus |
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123 # define PCREPOSIX_EXP_DECL extern "C" |
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124 # define PCREPOSIX_EXP_DEFN extern "C" |
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125 # else |
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126 # define PCREPOSIX_EXP_DECL extern |
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127 # define PCREPOSIX_EXP_DEFN extern |
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128 # endif |
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129 #endif |
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130 |
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131 /* The functions */ |
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132 |
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133 PCREPOSIX_EXP_DECL int regcomp(regex_t *, const char *, int); |
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134 PCREPOSIX_EXP_DECL int regexec(const regex_t *, const char *, size_t, |
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135 regmatch_t *, int); |
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136 PCREPOSIX_EXP_DECL size_t regerror(int, const regex_t *, char *, size_t); |
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137 PCREPOSIX_EXP_DECL void regfree(regex_t *); |
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138 |
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139 #ifdef __cplusplus |
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140 } /* extern "C" */ |
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141 #endif |
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142 |
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143 #endif /* End of pcreposix.h */ |