1 | /*
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2 | The MIT License (MIT)
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3 |
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4 | Copyright (c) 2015 mattn.
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5 |
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6 | Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | of this software and associated documentation files (the "Software"), to deal
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8 | in the Software without restriction, including without limitation the rights
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9 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | copies of the Software, and to permit persons to whom the Software is
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11 | furnished to do so, subject to the following conditions:
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12 |
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13 | The above copyright notice and this permission notice shall be included in
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14 | all copies or substantial portions of the Software.
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15 |
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16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | THE SOFTWARE.
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23 | */
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24 | #include <stdio.h>
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25 | #include <string.h>
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26 | #include <ctype.h>
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27 | #include <memory.h>
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28 | #include <mruby.h>
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29 | #include <mruby/class.h>
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30 | #include <mruby/variable.h>
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31 | #include <mruby/array.h>
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32 | #include <mruby/hash.h>
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33 | #include <mruby/string.h>
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34 | #include <mruby/data.h>
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35 | #include <mruby/variable.h>
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36 | #ifdef _MSC_VER
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37 | #define ONIG_EXTERN extern
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38 | #endif
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39 | #ifdef HAVE_ONIGMO_H
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40 | #include <onigmo.h>
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41 | #elif defined(HAVE_ONIGURUMA_H)
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42 | #include <oniguruma.h>
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43 | #else
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44 | #include "oniguruma.h"
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45 | #endif
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46 |
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47 | #ifdef MRUBY_VERSION
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48 | #define mrb_args_int mrb_int
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49 | #else
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50 | #define mrb_args_int int
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51 | #endif
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52 |
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53 | static const char utf8len_codepage[256] =
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54 | {
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55 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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56 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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57 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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58 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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59 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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60 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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61 | 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
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62 | 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,1,1,1,1,1,1,1,1,1,1,1,
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63 | };
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64 |
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65 | static mrb_int
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66 | utf8len(const char* p, const char* e)
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67 | {
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68 | mrb_int len;
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69 | mrb_int i;
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70 |
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71 | len = utf8len_codepage[(unsigned char)*p];
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72 | if (p + len > e) return 1;
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73 | for (i = 1; i < len; ++i)
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74 | if ((p[i] & 0xc0) != 0x80)
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75 | return 1;
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76 | return len;
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77 | }
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78 |
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79 | static void
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80 | onig_regexp_free(mrb_state *mrb, void *p) {
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81 | onig_free((OnigRegex) p);
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82 | }
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83 |
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84 | static struct mrb_data_type mrb_onig_regexp_type = {
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85 | "PosixRegexp", onig_regexp_free
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86 | };
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87 |
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88 | #define ONIG_REGEXP_P(obj) \
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89 | ((mrb_type(obj) == MRB_TT_DATA) && (DATA_TYPE(obj) == &mrb_onig_regexp_type))
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90 |
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91 | static void
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92 | match_data_free(mrb_state* mrb, void* p) {
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93 | (void)mrb;
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94 | onig_region_free((OnigRegion*)p, 1);
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95 | }
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96 |
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97 | static struct mrb_data_type mrb_onig_region_type = {
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98 | "OnigRegion", match_data_free
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99 | };
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100 |
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101 | static mrb_value
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102 | str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len)
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103 | {
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104 | #ifdef MRB_UTF8_STRING
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105 | return mrb_str_new(mrb, RSTRING_PTR(str) + beg, len);
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106 | #else
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107 | return mrb_str_substr(mrb, str, beg, len);
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108 | #endif
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109 | }
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110 |
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111 | static mrb_value
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112 | onig_regexp_initialize(mrb_state *mrb, mrb_value self) {
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113 | mrb_value str, flag = mrb_nil_value(), code = mrb_nil_value();
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114 | mrb_get_args(mrb, "S|oo", &str, &flag, &code);
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115 |
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116 | int cflag = 0;
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117 | OnigEncoding enc = ONIG_ENCODING_UTF8;
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118 | if(mrb_string_p(code)) {
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119 | char const* str_code = mrb_string_value_ptr(mrb, code);
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120 | if(strchr(str_code, 'n') || strchr(str_code, 'N')) {
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121 | enc = ONIG_ENCODING_ASCII;
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122 | }
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123 | }
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124 | if(mrb_nil_p(flag)) {
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125 | } else if(mrb_type(flag) == MRB_TT_TRUE) {
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126 | cflag |= ONIG_OPTION_IGNORECASE;
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127 | } else if(mrb_fixnum_p(flag)) {
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128 | int int_flags = mrb_fixnum(flag);
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129 | if(int_flags & 0x1) { cflag |= ONIG_OPTION_IGNORECASE; }
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130 | if(int_flags & 0x2) { cflag |= ONIG_OPTION_EXTEND; }
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131 | if(int_flags & 0x4) { cflag |= ONIG_OPTION_MULTILINE; }
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132 | } else if(mrb_string_p(flag)) {
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133 | char const* str_flags = mrb_string_value_ptr(mrb, flag);
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134 | if(strchr(str_flags, 'i')) { cflag |= ONIG_OPTION_IGNORECASE; }
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135 | if(strchr(str_flags, 'x')) { cflag |= ONIG_OPTION_EXTEND; }
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136 | if(strchr(str_flags, 'm')) { cflag |= ONIG_OPTION_MULTILINE; }
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137 | } else {
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138 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "unknown regexp flag: %S", flag);
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139 | }
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140 |
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141 | OnigErrorInfo einfo;
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142 | OnigRegex reg;
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143 | int result = onig_new(®, (OnigUChar*)RSTRING_PTR(str), (OnigUChar*) RSTRING_PTR(str) + RSTRING_LEN(str),
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144 | cflag, enc, ONIG_SYNTAX_RUBY, &einfo);
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145 | if (result != ONIG_NORMAL) {
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146 | char err[ONIG_MAX_ERROR_MESSAGE_LEN] = "";
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147 | onig_error_code_to_str((OnigUChar*)err, result, &einfo);
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148 | mrb_raisef(mrb, E_REGEXP_ERROR, "'%S' is an invalid regular expression because %S.",
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149 | str, mrb_str_new_cstr(mrb, err));
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150 | }
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151 | mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "@source"), str);
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152 |
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153 | DATA_PTR(self) = reg;
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154 | DATA_TYPE(self) = &mrb_onig_regexp_type;
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155 |
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156 | return self;
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157 | }
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158 |
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159 | static mrb_value
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160 | create_onig_region(mrb_state* mrb, mrb_value const str, mrb_value rex) {
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161 | mrb_assert(mrb_string_p(str));
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162 | mrb_assert(mrb_type(rex) == MRB_TT_DATA && DATA_TYPE(rex) == &mrb_onig_regexp_type);
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163 | mrb_value const c = mrb_obj_value(mrb_data_object_alloc(
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164 | mrb, mrb_class_get(mrb, "OnigMatchData"), onig_region_new(), &mrb_onig_region_type));
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165 | mrb_iv_set(mrb, c, mrb_intern_lit(mrb, "string"), mrb_str_dup(mrb, str));
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166 | mrb_iv_set(mrb, c, mrb_intern_lit(mrb, "regexp"), rex);
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167 | return c;
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168 | }
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169 |
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170 | #define MISMATCH_NIL_OR(v) (result == ONIG_MISMATCH ? mrb_nil_value() : (v))
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171 |
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172 | static int
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173 | onig_match_common(mrb_state* mrb, OnigRegex reg, mrb_value match_value, mrb_value str, int pos) {
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174 | mrb_assert(mrb_string_p(str));
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175 | mrb_assert(DATA_TYPE(match_value) == &mrb_onig_region_type);
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176 | OnigRegion* const match = (OnigRegion*)DATA_PTR(match_value);
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177 | OnigUChar const* str_ptr = (OnigUChar const*)RSTRING_PTR(str);
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178 | int const result = onig_search(reg, str_ptr, str_ptr + RSTRING_LEN(str),
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179 | str_ptr + pos, str_ptr + RSTRING_LEN(str), match, 0);
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180 | if (result != ONIG_MISMATCH && result < 0) {
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181 | char err[ONIG_MAX_ERROR_MESSAGE_LEN] = "";
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182 | onig_error_code_to_str((OnigUChar*)err, result);
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183 | mrb_raise(mrb, E_REGEXP_ERROR, err);
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184 | }
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185 |
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186 | struct RObject* const cls = (struct RObject*)mrb_class_get(mrb, "OnigRegexp");
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187 | mrb_obj_iv_set(mrb, cls, mrb_intern_lit(mrb, "@last_match"), MISMATCH_NIL_OR(match_value));
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188 |
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189 | if (mrb_class_get(mrb, "Regexp") == (struct RClass*)cls &&
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190 | mrb_bool(mrb_obj_iv_get(mrb, (struct RObject*)cls, mrb_intern_lit(mrb, "@set_global_variables"))))
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191 | {
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192 | mrb_gv_set(mrb, mrb_intern_lit(mrb, "$~"),
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193 | MISMATCH_NIL_OR(match_value));
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194 | mrb_gv_set(mrb, mrb_intern_lit(mrb, "$&"),
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195 | MISMATCH_NIL_OR(mrb_funcall(mrb, match_value, "[]", 1, mrb_fixnum_value(0))));
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196 | mrb_gv_set(mrb, mrb_intern_lit(mrb, "$`"),
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197 | MISMATCH_NIL_OR(mrb_funcall(mrb, match_value, "pre_match", 0)));
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198 | mrb_gv_set(mrb, mrb_intern_lit(mrb, "$'"),
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199 | MISMATCH_NIL_OR(mrb_funcall(mrb, match_value, "post_match", 0)));
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200 | mrb_gv_set(mrb, mrb_intern_lit(mrb, "$+"),
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201 | MISMATCH_NIL_OR(mrb_funcall(mrb, match_value, "[]", 1, mrb_fixnum_value(match->num_regs - 1))));
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202 |
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203 | // $1 to $9
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204 | int idx = 1;
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205 | int const idx_max = match->num_regs > 10? 10 : match->num_regs;
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206 | for(; idx < idx_max; ++idx) {
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207 | char const n[] = { '$', '0' + idx };
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208 | mrb_gv_set(mrb, mrb_intern(mrb, n, 2),
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209 | mrb_funcall(mrb, match_value, "[]", 1, mrb_fixnum_value(idx)));
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210 | }
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211 |
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212 | for(; idx < 10; ++idx) {
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213 | char const n[] = { '$', '0' + idx };
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214 | mrb_gv_remove(mrb, mrb_intern(mrb, n, 2));
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215 | }
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216 | }
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217 |
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218 | return result;
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219 | }
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220 |
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221 | static mrb_value
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222 | reg_operand(mrb_state *mrb, mrb_value obj) {
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223 | mrb_value ret;
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224 |
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225 | if (mrb_symbol_p(obj)) {
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226 | ret = mrb_sym2str(mrb, mrb_symbol(obj));
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227 | if (mrb_undef_p(ret)) {
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228 | mrb_bug(mrb, "can not intern %S", obj);
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229 | }
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230 | }
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231 | else {
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232 | ret = mrb_string_type(mrb, obj);
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233 | }
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234 | return ret;
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235 | }
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236 |
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237 | static mrb_value
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238 | onig_regexp_match(mrb_state *mrb, mrb_value self) {
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239 | mrb_value str = mrb_nil_value();
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240 | OnigRegex reg;
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241 | mrb_int pos = 0;
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242 | mrb_value block = mrb_nil_value();
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243 |
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244 | mrb_get_args(mrb, "o|i&", &str, &pos, &block);
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245 | if (mrb_nil_p(str)) {
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246 | return mrb_nil_value();
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247 | }
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248 | str = reg_operand(mrb, str);
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249 | if (pos < 0 || (pos > 0 && pos >= RSTRING_LEN(str))) {
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250 | return mrb_nil_value();
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251 | }
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252 |
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253 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, reg);
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254 |
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255 | mrb_value const ret = create_onig_region(mrb, str, self);
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256 | if (onig_match_common(mrb, reg, ret, str, pos) == ONIG_MISMATCH) {
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257 | return mrb_nil_value();
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258 | }
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259 |
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260 | if (mrb_nil_p(block)) {
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261 | return ret;
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262 | } else {
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263 | return mrb_yield(mrb, block, ret);
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264 | }
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265 | }
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266 |
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267 | static mrb_value
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268 | onig_regexp_match_p(mrb_state *mrb, mrb_value self) {
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269 | mrb_value str = mrb_nil_value();
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270 | mrb_int pos = 0;
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271 | OnigRegex reg;
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272 | OnigUChar const* str_ptr;
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273 |
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274 | mrb_get_args(mrb, "o|i", &str, &pos);
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275 | if (mrb_nil_p(str)) {
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276 | return mrb_nil_value();
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277 | }
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278 | str = reg_operand(mrb, str);
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279 | if (pos < 0 || (pos > 0 && pos >= RSTRING_LEN(str))) {
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280 | return mrb_nil_value();
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281 | }
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282 |
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283 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, reg);
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284 | str_ptr = (OnigUChar const*)RSTRING_PTR(str);
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285 | return mrb_bool_value(onig_search(
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286 | reg, str_ptr, str_ptr + RSTRING_LEN(str),
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287 | str_ptr + pos, str_ptr + RSTRING_LEN(str), NULL, 0) != ONIG_MISMATCH);
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288 | }
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289 |
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290 | static mrb_value
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291 | string_match_p(mrb_state *mrb, mrb_value self) {
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292 | mrb_value str = self;
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293 | mrb_int pos = 0;
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294 | OnigRegex reg;
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295 | OnigUChar const* str_ptr;
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296 |
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297 | mrb_get_args(mrb, "d|i", ®, &mrb_onig_regexp_type, &pos);
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298 | if (pos < 0 || (pos > 0 && pos >= RSTRING_LEN(str))) {
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299 | return mrb_nil_value();
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300 | }
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301 |
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302 | if (mrb_nil_p(str)) {
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303 | return mrb_nil_value();
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304 | }
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305 | str = mrb_string_type(mrb, str);
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306 |
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307 | str_ptr = (OnigUChar const*)RSTRING_PTR(str);
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308 | return mrb_bool_value(onig_search(
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309 | reg, str_ptr, str_ptr + RSTRING_LEN(str),
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310 | str_ptr + pos, str_ptr + RSTRING_LEN(str), NULL, 0) != ONIG_MISMATCH);
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311 | }
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312 |
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313 | static mrb_value
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314 | onig_regexp_equal(mrb_state *mrb, mrb_value self) {
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315 | mrb_value other;
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316 | OnigRegex self_reg, other_reg;
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317 |
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318 | mrb_get_args(mrb, "o", &other);
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319 | if (mrb_obj_equal(mrb, self, other)){
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320 | return mrb_true_value();
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321 | }
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322 | if (mrb_nil_p(other)) {
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323 | return mrb_false_value();
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324 | }
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325 | if (!mrb_obj_is_kind_of(mrb, other, mrb_class_get(mrb, "OnigRegexp"))) {
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326 | return mrb_false_value();
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327 | }
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328 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, self_reg);
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329 | Data_Get_Struct(mrb, other, &mrb_onig_regexp_type, other_reg);
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330 |
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331 | if (!self_reg || !other_reg){
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332 | mrb_raise(mrb, E_RUNTIME_ERROR, "Invalid OnigRegexp");
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333 | }
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334 | if (onig_get_options(self_reg) != onig_get_options(other_reg)){
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335 | return mrb_false_value();
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336 | }
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337 | return mrb_str_equal(mrb, mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@source")), mrb_iv_get(mrb, other, mrb_intern_lit(mrb, "@source"))) ?
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338 | mrb_true_value() : mrb_false_value();
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339 | }
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340 |
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341 | static mrb_value
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342 | onig_regexp_casefold_p(mrb_state *mrb, mrb_value self) {
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343 | OnigRegex reg;
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344 |
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345 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, reg);
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346 | return (onig_get_options(reg) & ONIG_OPTION_IGNORECASE) ? mrb_true_value() : mrb_false_value();
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347 | }
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348 |
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349 | static mrb_value
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350 | onig_regexp_options(mrb_state *mrb, mrb_value self) {
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351 | OnigRegex reg;
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352 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, reg);
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353 | return mrb_fixnum_value(onig_get_options(reg));
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354 | }
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355 |
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356 | static char *
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357 | option_to_str(char str[4], int options) {
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358 | char *p = str;
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359 | if (options & ONIG_OPTION_MULTILINE) *p++ = 'm';
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360 | if (options & ONIG_OPTION_IGNORECASE) *p++ = 'i';
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---|
361 | if (options & ONIG_OPTION_EXTEND) *p++ = 'x';
|
---|
362 | *p = 0;
|
---|
363 | return str;
|
---|
364 | }
|
---|
365 |
|
---|
366 | static mrb_value
|
---|
367 | regexp_expr_str(mrb_state *mrb, mrb_value str, const char *p, int len) {
|
---|
368 | const char *pend;
|
---|
369 | char buf[5];
|
---|
370 |
|
---|
371 | pend = (const char *) p + len;
|
---|
372 | for (;p < pend; p++) {
|
---|
373 | unsigned char c, cc;
|
---|
374 |
|
---|
375 | c = *p;
|
---|
376 | if (c == '/') {
|
---|
377 | buf[0] = '\\'; buf[1] = c;
|
---|
378 | mrb_str_cat(mrb, str, buf, 2);
|
---|
379 | continue;
|
---|
380 | }
|
---|
381 | if (ISPRINT(c)) {
|
---|
382 | buf[0] = c;
|
---|
383 | mrb_str_cat(mrb, str, buf, 1);
|
---|
384 | continue;
|
---|
385 | }
|
---|
386 | switch (c) {
|
---|
387 | case '\n': cc = 'n'; break;
|
---|
388 | case '\r': cc = 'r'; break;
|
---|
389 | case '\t': cc = 't'; break;
|
---|
390 | default: cc = 0; break;
|
---|
391 | }
|
---|
392 | if (cc) {
|
---|
393 | buf[0] = '\\';
|
---|
394 | buf[1] = (char)cc;
|
---|
395 | mrb_str_cat(mrb, str, buf, 2);
|
---|
396 | continue;
|
---|
397 | }
|
---|
398 | else {
|
---|
399 | buf[0] = '\\';
|
---|
400 | buf[3] = '0' + c % 8; c /= 8;
|
---|
401 | buf[2] = '0' + c % 8; c /= 8;
|
---|
402 | buf[1] = '0' + c % 8;
|
---|
403 | mrb_str_cat(mrb, str, buf, 4);
|
---|
404 | continue;
|
---|
405 | }
|
---|
406 | }
|
---|
407 | return str;
|
---|
408 | }
|
---|
409 |
|
---|
410 | static mrb_value
|
---|
411 | onig_regexp_inspect(mrb_state *mrb, mrb_value self) {
|
---|
412 | OnigRegex reg;
|
---|
413 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, reg);
|
---|
414 | mrb_value str = mrb_str_new_lit(mrb, "/");
|
---|
415 | mrb_value src = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@source"));
|
---|
416 | regexp_expr_str(mrb, str, (const char *)RSTRING_PTR(src), RSTRING_LEN(src));
|
---|
417 | mrb_str_cat_lit(mrb, str, "/");
|
---|
418 | char opts[4];
|
---|
419 | if (*option_to_str(opts, onig_get_options(reg))) {
|
---|
420 | mrb_str_cat_cstr(mrb, str, opts);
|
---|
421 | }
|
---|
422 | if (onig_get_encoding(reg) == ONIG_ENCODING_ASCII) {
|
---|
423 | mrb_str_cat_lit(mrb, str, "n");
|
---|
424 | }
|
---|
425 | return str;
|
---|
426 | }
|
---|
427 |
|
---|
428 | static mrb_value
|
---|
429 | onig_regexp_to_s(mrb_state *mrb, mrb_value self) {
|
---|
430 | int options;
|
---|
431 | const int embeddable = ONIG_OPTION_MULTILINE|ONIG_OPTION_IGNORECASE|ONIG_OPTION_EXTEND;
|
---|
432 | long len;
|
---|
433 | const char* ptr;
|
---|
434 | mrb_value str = mrb_str_new_lit(mrb, "(?");
|
---|
435 | char optbuf[5];
|
---|
436 |
|
---|
437 | OnigRegex reg;
|
---|
438 | Data_Get_Struct(mrb, self, &mrb_onig_regexp_type, reg);
|
---|
439 | options = onig_get_options(reg);
|
---|
440 | mrb_value src = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@source"));
|
---|
441 | ptr = RSTRING_PTR(src);
|
---|
442 | len = RSTRING_LEN(src);
|
---|
443 |
|
---|
444 | again:
|
---|
445 | if (len >= 4 && ptr[0] == '(' && ptr[1] == '?') {
|
---|
446 | int err = 1;
|
---|
447 | ptr += 2;
|
---|
448 | if ((len -= 2) > 0) {
|
---|
449 | do {
|
---|
450 | if(strchr(ptr, 'i')) { options |= ONIG_OPTION_IGNORECASE; }
|
---|
451 | if(strchr(ptr, 'x')) { options |= ONIG_OPTION_EXTEND; }
|
---|
452 | if(strchr(ptr, 'm')) { options |= ONIG_OPTION_MULTILINE; }
|
---|
453 | ++ptr;
|
---|
454 | } while (--len > 0);
|
---|
455 | }
|
---|
456 | if (len > 1 && *ptr == '-') {
|
---|
457 | ++ptr;
|
---|
458 | --len;
|
---|
459 | do {
|
---|
460 | if(strchr(ptr, 'i')) { options &= ~ONIG_OPTION_IGNORECASE; }
|
---|
461 | if(strchr(ptr, 'x')) { options &= ~ONIG_OPTION_EXTEND; }
|
---|
462 | if(strchr(ptr, 'm')) { options &= ~ONIG_OPTION_MULTILINE; }
|
---|
463 | ++ptr;
|
---|
464 | } while (--len > 0);
|
---|
465 | }
|
---|
466 | if (*ptr == ')') {
|
---|
467 | --len;
|
---|
468 | ++ptr;
|
---|
469 | goto again;
|
---|
470 | }
|
---|
471 | if (*ptr == ':' && ptr[len-1] == ')') {
|
---|
472 | OnigRegex rp;
|
---|
473 | ++ptr;
|
---|
474 | len -= 2;
|
---|
475 | err = onig_new(&rp, (OnigUChar*)ptr, (OnigUChar*)ptr + len, ONIG_OPTION_DEFAULT,
|
---|
476 | ONIG_ENCODING_UTF8, OnigDefaultSyntax, NULL);
|
---|
477 | onig_free(rp);
|
---|
478 | }
|
---|
479 | if (err) {
|
---|
480 | options = onig_get_options(reg);
|
---|
481 | ptr = RSTRING_PTR(src);
|
---|
482 | len = RSTRING_LEN(src);
|
---|
483 | }
|
---|
484 | }
|
---|
485 |
|
---|
486 | if (*option_to_str(optbuf, options)) mrb_str_cat_cstr(mrb, str, optbuf);
|
---|
487 |
|
---|
488 | if ((options & embeddable) != embeddable) {
|
---|
489 | optbuf[0] = '-';
|
---|
490 | option_to_str(optbuf + 1, ~options);
|
---|
491 | mrb_str_cat_cstr(mrb, str, optbuf);
|
---|
492 | }
|
---|
493 |
|
---|
494 | mrb_str_cat_cstr(mrb, str, ":");
|
---|
495 | regexp_expr_str(mrb, str, ptr, len);
|
---|
496 | mrb_str_cat_cstr(mrb, str, ")");
|
---|
497 | return str;
|
---|
498 | }
|
---|
499 |
|
---|
500 |
|
---|
501 | static mrb_value
|
---|
502 | onig_regexp_version(mrb_state* mrb, mrb_value self) {
|
---|
503 | (void)self;
|
---|
504 | return mrb_str_new_cstr(mrb, onig_version());
|
---|
505 | }
|
---|
506 |
|
---|
507 | static mrb_value
|
---|
508 | match_data_to_a(mrb_state* mrb, mrb_value self);
|
---|
509 |
|
---|
510 | static mrb_int
|
---|
511 | match_data_actual_index(mrb_state* mrb, mrb_value self, mrb_value idx_value) {
|
---|
512 | if(mrb_fixnum_p(idx_value)) { return mrb_fixnum(idx_value); }
|
---|
513 |
|
---|
514 | char const* name = NULL;
|
---|
515 | char const* name_end = NULL;
|
---|
516 | if(mrb_symbol_p(idx_value)) {
|
---|
517 | mrb_int sym_len;
|
---|
518 | name = mrb_sym2name_len(mrb, mrb_symbol(idx_value), &sym_len);
|
---|
519 | name_end = name + sym_len;
|
---|
520 | } else if(mrb_string_p(idx_value)) {
|
---|
521 | name = mrb_string_value_ptr(mrb, idx_value);
|
---|
522 | name_end = name + strlen(name);
|
---|
523 | } else { mrb_assert(FALSE); }
|
---|
524 | mrb_assert(name && name_end);
|
---|
525 |
|
---|
526 | mrb_value const regexp = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "regexp"));
|
---|
527 | mrb_assert(!mrb_nil_p(regexp));
|
---|
528 | mrb_assert(DATA_TYPE(regexp) == &mrb_onig_regexp_type);
|
---|
529 | mrb_assert(DATA_TYPE(self) == &mrb_onig_region_type);
|
---|
530 | int const idx = onig_name_to_backref_number(
|
---|
531 | (OnigRegex)DATA_PTR(regexp), (OnigUChar const*)name, (OnigUChar const*)name_end,
|
---|
532 | (OnigRegion*)DATA_PTR(self));
|
---|
533 | if (idx < 0) {
|
---|
534 | mrb_raisef(mrb, E_INDEX_ERROR, "undefined group name reference: %S", idx_value);
|
---|
535 | }
|
---|
536 | return idx;
|
---|
537 | }
|
---|
538 |
|
---|
539 | // ISO 15.2.16.3.1
|
---|
540 | static mrb_value
|
---|
541 | match_data_index(mrb_state* mrb, mrb_value self) {
|
---|
542 | mrb_value src;
|
---|
543 | mrb_int argc; mrb_value *argv;
|
---|
544 |
|
---|
545 | mrb_get_args(mrb, "*", &argv, &argc);
|
---|
546 |
|
---|
547 | src = match_data_to_a(mrb, self);
|
---|
548 |
|
---|
549 | if (argc == 1) {
|
---|
550 | switch (mrb_type(argv[0])) {
|
---|
551 | case MRB_TT_FIXNUM:
|
---|
552 | case MRB_TT_SYMBOL:
|
---|
553 | case MRB_TT_STRING:
|
---|
554 | return mrb_ary_entry(src, match_data_actual_index(mrb, self, argv[0]));
|
---|
555 | default: break;
|
---|
556 | }
|
---|
557 | }
|
---|
558 |
|
---|
559 | return mrb_funcall_argv(mrb, src, mrb_intern_lit(mrb, "[]"), argc, argv);
|
---|
560 | }
|
---|
561 |
|
---|
562 | #define match_data_check_index(idx) \
|
---|
563 | if(idx < 0 || reg->num_regs <= idx) \
|
---|
564 | mrb_raisef(mrb, E_INDEX_ERROR, "index %S out of matches", mrb_fixnum_value(idx)) \
|
---|
565 |
|
---|
566 | // ISO 15.2.16.3.2
|
---|
567 | static mrb_value
|
---|
568 | match_data_begin(mrb_state* mrb, mrb_value self) {
|
---|
569 | mrb_value idx_value;
|
---|
570 | mrb_get_args(mrb, "o", &idx_value);
|
---|
571 | OnigRegion* reg;
|
---|
572 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
573 | mrb_int const idx = match_data_actual_index(mrb, self, idx_value);
|
---|
574 | match_data_check_index(idx);
|
---|
575 | return mrb_fixnum_value(reg->beg[idx]);
|
---|
576 | }
|
---|
577 |
|
---|
578 | // ISO 15.2.16.3.3
|
---|
579 | static mrb_value
|
---|
580 | match_data_captures(mrb_state* mrb, mrb_value self) {
|
---|
581 | mrb_value ary = match_data_to_a(mrb, self);
|
---|
582 | return mrb_ary_new_from_values(mrb, RARRAY_LEN(ary) - 1, RARRAY_PTR(ary) + 1);
|
---|
583 | }
|
---|
584 |
|
---|
585 | // ISO 15.2.16.3.4
|
---|
586 | static mrb_value
|
---|
587 | match_data_end(mrb_state* mrb, mrb_value self) {
|
---|
588 | mrb_value idx_value;
|
---|
589 | mrb_get_args(mrb, "o", &idx_value);
|
---|
590 | OnigRegion* reg;
|
---|
591 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
592 | mrb_int const idx = match_data_actual_index(mrb, self, idx_value);
|
---|
593 | match_data_check_index(idx);
|
---|
594 | return mrb_fixnum_value(reg->end[idx]);
|
---|
595 | }
|
---|
596 |
|
---|
597 | // ISO 15.2.16.3.5
|
---|
598 | static mrb_value
|
---|
599 | match_data_copy(mrb_state* mrb, mrb_value self) {
|
---|
600 | mrb_value src_val;
|
---|
601 | mrb_get_args(mrb, "o", &src_val);
|
---|
602 |
|
---|
603 | OnigRegion* src;
|
---|
604 | Data_Get_Struct(mrb, src_val, &mrb_onig_region_type, src);
|
---|
605 |
|
---|
606 | OnigRegion* dst = onig_region_new();
|
---|
607 | onig_region_copy(dst, src);
|
---|
608 |
|
---|
609 | DATA_PTR(self) = dst;
|
---|
610 | DATA_TYPE(self) = &mrb_onig_region_type;
|
---|
611 | mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "string"), mrb_iv_get(mrb, src_val, mrb_intern_lit(mrb, "string")));
|
---|
612 | mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "regexp"), mrb_iv_get(mrb, src_val, mrb_intern_lit(mrb, "regexp")));
|
---|
613 | return self;
|
---|
614 | }
|
---|
615 |
|
---|
616 | // ISO 15.2.16.3.6
|
---|
617 | // ISO 15.2.16.3.10
|
---|
618 | static mrb_value
|
---|
619 | match_data_length(mrb_state* mrb, mrb_value self) {
|
---|
620 | OnigRegion* reg;
|
---|
621 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
622 | return mrb_fixnum_value(reg->num_regs);
|
---|
623 | }
|
---|
624 |
|
---|
625 | // ISO 15.2.16.3.7
|
---|
626 | static mrb_value
|
---|
627 | match_data_offset(mrb_state* mrb, mrb_value self) {
|
---|
628 | mrb_value idx_value;
|
---|
629 | mrb_get_args(mrb, "o", &idx_value);
|
---|
630 | OnigRegion* reg;
|
---|
631 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
632 | mrb_int const idx = match_data_actual_index(mrb, self, idx_value);
|
---|
633 | match_data_check_index(idx);
|
---|
634 | mrb_value ret = mrb_ary_new_capa(mrb, 2);
|
---|
635 | mrb_ary_push(mrb, ret, mrb_fixnum_value(reg->beg[idx]));
|
---|
636 | mrb_ary_push(mrb, ret, mrb_fixnum_value(reg->end[idx]));
|
---|
637 | return ret;
|
---|
638 | }
|
---|
639 |
|
---|
640 | // ISO 15.2.16.3.8
|
---|
641 | static mrb_value
|
---|
642 | match_data_post_match(mrb_state* mrb, mrb_value self) {
|
---|
643 | OnigRegion* reg;
|
---|
644 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
645 | mrb_value str = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "string"));
|
---|
646 | return str_substr(mrb, str, reg->end[0], RSTRING_LEN(str) - reg->end[0]);
|
---|
647 | }
|
---|
648 |
|
---|
649 | // ISO 15.2.16.3.9
|
---|
650 | static mrb_value
|
---|
651 | match_data_pre_match(mrb_state* mrb, mrb_value self) {
|
---|
652 | OnigRegion* reg;
|
---|
653 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
654 | mrb_value str = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "string"));
|
---|
655 | return str_substr(mrb, str, 0, reg->beg[0]);
|
---|
656 | }
|
---|
657 |
|
---|
658 | // ISO 15.2.16.3.11
|
---|
659 | static mrb_value
|
---|
660 | match_data_string(mrb_state* mrb, mrb_value self) {
|
---|
661 | return mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "string"));
|
---|
662 | }
|
---|
663 |
|
---|
664 | static mrb_value
|
---|
665 | match_data_regexp(mrb_state* mrb, mrb_value self) {
|
---|
666 | return mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "regexp"));
|
---|
667 | }
|
---|
668 |
|
---|
669 | // ISO 15.2.16.3.12
|
---|
670 | static mrb_value
|
---|
671 | match_data_to_a(mrb_state* mrb, mrb_value self) {
|
---|
672 | mrb_value cache = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "cache"));
|
---|
673 | if(!mrb_nil_p(cache)) {
|
---|
674 | return cache;
|
---|
675 | }
|
---|
676 |
|
---|
677 | mrb_value str = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "string"));
|
---|
678 | OnigRegion* reg;
|
---|
679 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
680 |
|
---|
681 | mrb_value ret = mrb_ary_new_capa(mrb, reg->num_regs);
|
---|
682 | int i, ai = mrb_gc_arena_save(mrb);
|
---|
683 | for(i = 0; i < reg->num_regs; ++i) {
|
---|
684 | if(reg->beg[i] == ONIG_REGION_NOTPOS) {
|
---|
685 | mrb_ary_push(mrb, ret, mrb_nil_value());
|
---|
686 | } else {
|
---|
687 | mrb_ary_push(mrb, ret, str_substr(mrb, str, reg->beg[i], reg->end[i] - reg->beg[i]));
|
---|
688 | }
|
---|
689 | mrb_gc_arena_restore(mrb, ai);
|
---|
690 | }
|
---|
691 | return ret;
|
---|
692 | }
|
---|
693 |
|
---|
694 | // ISO 15.2.16.3.13
|
---|
695 | static mrb_value
|
---|
696 | match_data_to_s(mrb_state* mrb, mrb_value self) {
|
---|
697 | mrb_value str = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "string"));
|
---|
698 | OnigRegion* reg;
|
---|
699 | Data_Get_Struct(mrb, self, &mrb_onig_region_type, reg);
|
---|
700 | return str_substr(mrb, str, reg->beg[0], reg->end[0] - reg->beg[0]);
|
---|
701 | }
|
---|
702 |
|
---|
703 | static void
|
---|
704 | append_replace_str(mrb_state* mrb, mrb_value result, mrb_value replace,
|
---|
705 | mrb_value src, OnigRegex reg, OnigRegion* match)
|
---|
706 | {
|
---|
707 | if (mrb_hash_p(replace)) {
|
---|
708 | mrb_value v = mrb_hash_get(mrb, replace, mrb_str_substr(mrb, src, match->beg[0], match->end[0] - match->beg[0]));
|
---|
709 | v = mrb_str_to_str(mrb, v);
|
---|
710 | mrb_str_cat_str(mrb, result, v);
|
---|
711 | return;
|
---|
712 | }
|
---|
713 |
|
---|
714 | mrb_assert(mrb_string_p(replace));
|
---|
715 | char const* ch;
|
---|
716 | char const* const end = RSTRING_PTR(replace) + RSTRING_LEN(replace);
|
---|
717 | for(ch = RSTRING_PTR(replace); ch < end; ++ch) {
|
---|
718 | if (*ch != '\\' || (ch + 1) >= end) {
|
---|
719 | mrb_str_cat(mrb, result, ch, 1);
|
---|
720 | continue;
|
---|
721 | }
|
---|
722 |
|
---|
723 | switch(*(++ch)) { // skip back slash and get next char
|
---|
724 | case 'k': { // group name
|
---|
725 | if ((ch + 2) >= end || ch[1] != '<') { goto replace_expr_error; }
|
---|
726 | char const* name_beg = ch += 2;
|
---|
727 | while (*ch != '>') { if(++ch == end) { goto replace_expr_error; } }
|
---|
728 | mrb_assert(ch < end);
|
---|
729 | mrb_assert(*ch == '>');
|
---|
730 | int const idx = onig_name_to_backref_number(
|
---|
731 | reg, (OnigUChar const*)name_beg, (OnigUChar const*)ch, match);
|
---|
732 | if (idx < 0) {
|
---|
733 | mrb_raisef(mrb, E_INDEX_ERROR, "undefined group name reference: %S",
|
---|
734 | str_substr(mrb, replace, name_beg - RSTRING_PTR(replace), ch - name_beg));
|
---|
735 | }
|
---|
736 | mrb_str_cat(mrb, result, RSTRING_PTR(src) + match->beg[idx], match->end[idx] - match->beg[idx]);
|
---|
737 | } break;
|
---|
738 |
|
---|
739 | case '\\': // escaped back slash
|
---|
740 | mrb_str_cat(mrb, result, ch, 1);
|
---|
741 | break;
|
---|
742 |
|
---|
743 | default:
|
---|
744 | if (isdigit(*ch)) { // group number 0-9
|
---|
745 | int const idx = *ch - '0';
|
---|
746 | if (idx < match->num_regs) {
|
---|
747 | mrb_str_cat(mrb, result, RSTRING_PTR(src) + match->beg[idx], match->end[idx] - match->beg[idx]);
|
---|
748 | }
|
---|
749 | } else {
|
---|
750 | char const str[] = { '\\', *ch };
|
---|
751 | mrb_str_cat(mrb, result, str, 2);
|
---|
752 | }
|
---|
753 | break;
|
---|
754 | }
|
---|
755 | }
|
---|
756 |
|
---|
757 | if(ch == end) { return; }
|
---|
758 |
|
---|
759 | replace_expr_error:
|
---|
760 | mrb_raisef(mrb, E_REGEXP_ERROR, "invalid replace expression: %S", replace);
|
---|
761 | }
|
---|
762 |
|
---|
763 | // ISO 15.2.10.5.18
|
---|
764 | static mrb_value
|
---|
765 | string_gsub(mrb_state* mrb, mrb_value self) {
|
---|
766 | mrb_value blk, match_expr, replace_expr = mrb_nil_value();
|
---|
767 | int const argc = mrb_get_args(mrb, "&o|o", &blk, &match_expr, &replace_expr);
|
---|
768 |
|
---|
769 | if(!ONIG_REGEXP_P(match_expr)) {
|
---|
770 | mrb_value argv[] = { match_expr, replace_expr };
|
---|
771 | return mrb_funcall_with_block(mrb, self, mrb_intern_lit(mrb, "string_gsub"), argc, argv, blk);
|
---|
772 | }
|
---|
773 |
|
---|
774 | if(argc == 1 && mrb_nil_p(blk)) {
|
---|
775 | return mrb_funcall(mrb, self, "to_enum", 2, mrb_symbol_value(mrb_intern_lit(mrb, "onig_regexp_gsub")), match_expr);
|
---|
776 | }
|
---|
777 |
|
---|
778 | if(!mrb_nil_p(blk) && !mrb_nil_p(replace_expr)) {
|
---|
779 | blk = mrb_nil_value();
|
---|
780 | }
|
---|
781 |
|
---|
782 | if (mrb_nil_p(blk) && !mrb_hash_p(replace_expr)) {
|
---|
783 | replace_expr = mrb_string_type(mrb, replace_expr);
|
---|
784 | }
|
---|
785 |
|
---|
786 | OnigRegex reg;
|
---|
787 | Data_Get_Struct(mrb, match_expr, &mrb_onig_regexp_type, reg);
|
---|
788 | mrb_value const result = mrb_str_new(mrb, NULL, 0);
|
---|
789 | mrb_value const match_value = create_onig_region(mrb, self, match_expr);
|
---|
790 | OnigRegion* const match = (OnigRegion*)DATA_PTR(match_value);
|
---|
791 | int last_end_pos = 0;
|
---|
792 |
|
---|
793 | while(1) {
|
---|
794 | if(onig_match_common(mrb, reg, match_value, self, last_end_pos) == ONIG_MISMATCH) { break; }
|
---|
795 |
|
---|
796 | mrb_str_cat(mrb, result, RSTRING_PTR(self) + last_end_pos, match->beg[0] - last_end_pos);
|
---|
797 |
|
---|
798 | if(mrb_nil_p(blk)) {
|
---|
799 | append_replace_str(mrb, result, replace_expr, self, reg, match);
|
---|
800 | } else {
|
---|
801 | mrb_value const tmp_str = mrb_str_to_str(mrb, mrb_yield(mrb, blk, str_substr(
|
---|
802 | mrb, self, match->beg[0], match->end[0] - match->beg[0])));
|
---|
803 | mrb_assert(mrb_string_p(tmp_str));
|
---|
804 | mrb_str_concat(mrb, result, tmp_str);
|
---|
805 | }
|
---|
806 |
|
---|
807 | last_end_pos = match->end[0];
|
---|
808 | if (match->beg[0] == match->end[0]) {
|
---|
809 | /*
|
---|
810 | * Always consume at least one character of the input string
|
---|
811 | * in order to prevent infinite loops.
|
---|
812 | */
|
---|
813 | char* p = RSTRING_PTR(self) + last_end_pos;
|
---|
814 | char* e = p + RSTRING_LEN(self);
|
---|
815 | int len = utf8len(p, e);
|
---|
816 | if (RSTRING_LEN(self) < last_end_pos + len) break;
|
---|
817 | mrb_str_cat(mrb, result, p, len);
|
---|
818 | last_end_pos += len;
|
---|
819 | }
|
---|
820 | }
|
---|
821 |
|
---|
822 | if (RSTRING_LEN(self) < last_end_pos) {
|
---|
823 | mrb_raise(mrb, E_ARGUMENT_ERROR, "invalid byte sequence in UTF-8");
|
---|
824 | }
|
---|
825 | mrb_str_cat(mrb, result, RSTRING_PTR(self) + last_end_pos, RSTRING_LEN(self) - last_end_pos);
|
---|
826 | return result;
|
---|
827 | }
|
---|
828 |
|
---|
829 | // ISO 15.2.10.5.32
|
---|
830 | static mrb_value
|
---|
831 | string_scan(mrb_state* mrb, mrb_value self) {
|
---|
832 | mrb_value blk, match_expr;
|
---|
833 | mrb_get_args(mrb, "&o", &blk, &match_expr);
|
---|
834 |
|
---|
835 | if(!ONIG_REGEXP_P(match_expr)) {
|
---|
836 | return mrb_funcall_with_block(mrb, self, mrb_intern_lit(mrb, "string_scan"),
|
---|
837 | 1, &match_expr, blk);
|
---|
838 | }
|
---|
839 |
|
---|
840 | OnigRegex reg;
|
---|
841 | Data_Get_Struct(mrb, match_expr, &mrb_onig_regexp_type, reg);
|
---|
842 | mrb_value const result = mrb_nil_p(blk)? mrb_ary_new(mrb) : self;
|
---|
843 | mrb_value m_value = create_onig_region(mrb, self, match_expr);
|
---|
844 | OnigRegion* const m = (OnigRegion*)DATA_PTR(m_value);
|
---|
845 | int last_end_pos = 0;
|
---|
846 | int i;
|
---|
847 |
|
---|
848 | while (1) {
|
---|
849 | if(onig_match_common(mrb, reg, m_value, self, last_end_pos) == ONIG_MISMATCH) { break; }
|
---|
850 |
|
---|
851 | if(mrb_nil_p(blk)) {
|
---|
852 | mrb_assert(mrb_array_p(result));
|
---|
853 | if(m->num_regs == 1) {
|
---|
854 | mrb_ary_push(mrb, result, str_substr(mrb, self, m->beg[0], m->end[0] - m->beg[0]));
|
---|
855 | } else {
|
---|
856 | mrb_value const elem = mrb_ary_new_capa(mrb, m->num_regs - 1);
|
---|
857 | for(i = 1; i < m->num_regs; ++i) {
|
---|
858 | mrb_ary_push(mrb, elem, str_substr(mrb, self, m->beg[i], m->end[i] - m->beg[i]));
|
---|
859 | }
|
---|
860 | mrb_ary_push(mrb, result, elem);
|
---|
861 | }
|
---|
862 | } else { // call block
|
---|
863 | mrb_assert(mrb_string_p(result));
|
---|
864 | if(m->num_regs == 1) {
|
---|
865 | mrb_yield(mrb, blk, str_substr(mrb, self, m->beg[0], m->end[0] - m->beg[0]));
|
---|
866 | } else {
|
---|
867 | mrb_value argv = mrb_ary_new_capa(mrb, m->num_regs - 1);
|
---|
868 | for(i = 1; i < m->num_regs; ++i) {
|
---|
869 | mrb_ary_push(mrb, argv, str_substr(mrb, self, m->beg[i], m->end[i] - m->beg[i]));
|
---|
870 | }
|
---|
871 | mrb_yield(mrb, blk, argv);
|
---|
872 | }
|
---|
873 | }
|
---|
874 |
|
---|
875 | if (m->beg[0] == m->end[0]) {
|
---|
876 | /*
|
---|
877 | * Always consume at least one character of the input string
|
---|
878 | */
|
---|
879 | if (RSTRING_LEN(self) > m->end[0]) {
|
---|
880 | char* p = RSTRING_PTR(self) + last_end_pos;
|
---|
881 | char* e = p + RSTRING_LEN(self);
|
---|
882 | int len = utf8len(p, e);
|
---|
883 | last_end_pos = m->end[0] + len;
|
---|
884 | } else {
|
---|
885 | last_end_pos = m->end[0] + 1;
|
---|
886 | }
|
---|
887 | } else {
|
---|
888 | last_end_pos = m->end[0];
|
---|
889 | }
|
---|
890 | }
|
---|
891 |
|
---|
892 | return result;
|
---|
893 | }
|
---|
894 |
|
---|
895 | // ISO 15.2.10.5.35
|
---|
896 | static mrb_value
|
---|
897 | string_split(mrb_state* mrb, mrb_value self) {
|
---|
898 | mrb_value pattern = mrb_nil_value(); mrb_int limit = 0;
|
---|
899 | int argc = mrb_get_args(mrb, "|oi", &pattern, &limit);
|
---|
900 | mrb_value result, tmp;
|
---|
901 | mrb_bool lim_p = !(argc == 2 && 0 < limit);
|
---|
902 |
|
---|
903 | if(mrb_nil_p(pattern)) { // check $; global variable
|
---|
904 | pattern = mrb_gv_get(mrb, mrb_intern_lit(mrb, "$;"));
|
---|
905 | if (mrb_nil_p(pattern)) {
|
---|
906 | pattern = mrb_str_new_lit(mrb, " ");
|
---|
907 | } else if (!mrb_string_p(pattern) && !ONIG_REGEXP_P(pattern)) {
|
---|
908 | mrb_raise(mrb, E_TYPE_ERROR, "value of $; must be String or Regexp");
|
---|
909 | }
|
---|
910 | if (argc == 0) { argc = 1; }
|
---|
911 | }
|
---|
912 |
|
---|
913 | if (!ONIG_REGEXP_P(pattern)) {
|
---|
914 | if(!mrb_nil_p(pattern)) { pattern = mrb_string_type(mrb, pattern); }
|
---|
915 | if(mrb_string_p(pattern) && RSTRING_LEN(pattern) == 0) {
|
---|
916 | /* Special case - split into chars */
|
---|
917 | pattern = mrb_funcall(mrb, mrb_obj_value(mrb_class_get(mrb, "OnigRegexp")), "new", 1, pattern);
|
---|
918 | } else {
|
---|
919 | return mrb_funcall(mrb, self, "string_split", argc, pattern, mrb_fixnum_value(limit));
|
---|
920 | }
|
---|
921 | }
|
---|
922 |
|
---|
923 | if(RSTRING_LEN(self) == 0) { return mrb_ary_new(mrb); }
|
---|
924 | if(limit == 1) { return mrb_ary_new_from_values(mrb, 1, &self); }
|
---|
925 |
|
---|
926 | result = mrb_ary_new(mrb);
|
---|
927 |
|
---|
928 | OnigRegex reg;
|
---|
929 | Data_Get_Struct(mrb, pattern, &mrb_onig_regexp_type, reg);
|
---|
930 | mrb_value const match_value = create_onig_region(mrb, self, pattern);
|
---|
931 | OnigRegion* const match = (OnigRegion*)DATA_PTR(match_value);
|
---|
932 | char *ptr = mrb_str_to_cstr(mrb, self);
|
---|
933 | mrb_int len = RSTRING_LEN(self);
|
---|
934 | mrb_int start = 0, beg = 0, end = 0;
|
---|
935 | mrb_int idx = 0, i = 0;
|
---|
936 | mrb_int last_null = 0;
|
---|
937 |
|
---|
938 | if (argc == 2) { i = 1; }
|
---|
939 | while ((end = onig_match_common(mrb, reg, match_value, self, start)) >= 0) {
|
---|
940 | if (start == end && match->beg[0] == match->end[0]) {
|
---|
941 | if (!ptr) {
|
---|
942 | mrb_ary_push(mrb, result, mrb_str_new_lit(mrb, ""));
|
---|
943 | break;
|
---|
944 | }
|
---|
945 | else if (last_null == 1) {
|
---|
946 | mrb_ary_push(mrb, result, str_substr(mrb, self, beg, utf8len(ptr+beg, ptr+len)));
|
---|
947 | beg = start;
|
---|
948 | }
|
---|
949 | else {
|
---|
950 | if (start == len)
|
---|
951 | start++;
|
---|
952 | else
|
---|
953 | start += utf8len(ptr+start, ptr+len);
|
---|
954 | last_null = 1;
|
---|
955 | continue;
|
---|
956 | }
|
---|
957 | }
|
---|
958 | else {
|
---|
959 | mrb_ary_push(mrb, result, str_substr(mrb, self, beg, end-beg));
|
---|
960 | beg = start = match->end[0];
|
---|
961 | }
|
---|
962 | last_null = 0;
|
---|
963 |
|
---|
964 | for (idx=1; idx < match->num_regs; idx++) {
|
---|
965 | if (match->beg[idx] == -1) continue;
|
---|
966 | if (match->beg[idx] == match->end[idx])
|
---|
967 | tmp = mrb_str_new_lit(mrb, "");
|
---|
968 | else
|
---|
969 | tmp = str_substr(mrb, self, match->beg[idx], match->end[idx]-match->beg[idx]);
|
---|
970 | mrb_ary_push(mrb, result, tmp);
|
---|
971 | }
|
---|
972 | if (!lim_p && limit <= ++i) break;
|
---|
973 | }
|
---|
974 |
|
---|
975 | if (RSTRING_LEN(self) > 0 && (!lim_p || RSTRING_LEN(self) > beg || limit < 0)) {
|
---|
976 | if (RSTRING_LEN(self) == beg)
|
---|
977 | tmp = mrb_str_new_lit(mrb, "");
|
---|
978 | else
|
---|
979 | tmp = str_substr(mrb, self, beg, RSTRING_LEN(self)-beg);
|
---|
980 | mrb_ary_push(mrb, result, tmp);
|
---|
981 | }
|
---|
982 | if (lim_p && limit == 0) {
|
---|
983 | while ((len = RARRAY_LEN(result)) > 0 &&
|
---|
984 | (tmp = mrb_ary_ref(mrb, result, len-1), RSTRING_LEN(tmp) == 0))
|
---|
985 | mrb_ary_pop(mrb, result);
|
---|
986 | }
|
---|
987 |
|
---|
988 | return result;
|
---|
989 | }
|
---|
990 |
|
---|
991 | // ISO 15.2.10.5.36
|
---|
992 | static mrb_value
|
---|
993 | string_sub(mrb_state* mrb, mrb_value self) {
|
---|
994 | mrb_value blk, match_expr, replace_expr = mrb_nil_value();
|
---|
995 | int const argc = mrb_get_args(mrb, "&o|o", &blk, &match_expr, &replace_expr);
|
---|
996 |
|
---|
997 | if(!ONIG_REGEXP_P(match_expr)) {
|
---|
998 | mrb_value argv[] = { match_expr, replace_expr };
|
---|
999 | return mrb_funcall_with_block(mrb, self, mrb_intern_lit(mrb, "string_sub"), argc, argv, blk);
|
---|
1000 | }
|
---|
1001 |
|
---|
1002 | if(argc == 1 && mrb_nil_p(blk)) {
|
---|
1003 | mrb_raise(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (given 1, expected 2)");
|
---|
1004 | }
|
---|
1005 |
|
---|
1006 | if(!mrb_nil_p(blk) && !mrb_nil_p(replace_expr)) {
|
---|
1007 | blk = mrb_nil_value();
|
---|
1008 | }
|
---|
1009 |
|
---|
1010 | if (mrb_nil_p(blk) && !mrb_hash_p(replace_expr)) {
|
---|
1011 | replace_expr = mrb_string_type(mrb, replace_expr);
|
---|
1012 | }
|
---|
1013 |
|
---|
1014 | OnigRegex reg;
|
---|
1015 | Data_Get_Struct(mrb, match_expr, &mrb_onig_regexp_type, reg);
|
---|
1016 | mrb_value const result = mrb_str_new(mrb, NULL, 0);
|
---|
1017 | mrb_value const match_value = create_onig_region(mrb, self, match_expr);
|
---|
1018 | OnigRegion* const match = (OnigRegion*)DATA_PTR(match_value);
|
---|
1019 |
|
---|
1020 | int const onig_result = onig_match_common(mrb, reg, match_value, self, 0);
|
---|
1021 | if(onig_result == ONIG_MISMATCH) { return self; }
|
---|
1022 |
|
---|
1023 | mrb_str_cat(mrb, result, RSTRING_PTR(self), match->beg[0]);
|
---|
1024 |
|
---|
1025 | if(mrb_nil_p(blk)) {
|
---|
1026 | append_replace_str(mrb, result, replace_expr, self, reg, match);
|
---|
1027 | } else {
|
---|
1028 | mrb_value const tmp_str = mrb_str_to_str(mrb, mrb_yield(mrb, blk, str_substr(
|
---|
1029 | mrb, self, match->beg[0], match->end[0] - match->beg[0])));
|
---|
1030 | mrb_assert(mrb_string_p(tmp_str));
|
---|
1031 | mrb_str_concat(mrb, result, tmp_str);
|
---|
1032 | }
|
---|
1033 |
|
---|
1034 | int const last_end_pos = match->end[0];
|
---|
1035 | mrb_str_cat(mrb, result, RSTRING_PTR(self) + last_end_pos, RSTRING_LEN(self) - last_end_pos);
|
---|
1036 |
|
---|
1037 | return result;
|
---|
1038 | }
|
---|
1039 |
|
---|
1040 | static mrb_value
|
---|
1041 | onig_regexp_clear_global_variables(mrb_state* mrb, mrb_value self) {
|
---|
1042 | mrb_gv_remove(mrb, mrb_intern_lit(mrb, "$~"));
|
---|
1043 | mrb_gv_remove(mrb, mrb_intern_lit(mrb, "$&"));
|
---|
1044 | mrb_gv_remove(mrb, mrb_intern_lit(mrb, "$`"));
|
---|
1045 | mrb_gv_remove(mrb, mrb_intern_lit(mrb, "$'"));
|
---|
1046 | mrb_gv_remove(mrb, mrb_intern_lit(mrb, "$+"));
|
---|
1047 |
|
---|
1048 | int idx;
|
---|
1049 | for(idx = 1; idx < 10; ++idx) {
|
---|
1050 | char const n[] = { '$', '0' + idx };
|
---|
1051 | mrb_gv_remove(mrb, mrb_intern(mrb, n, 2));
|
---|
1052 | }
|
---|
1053 |
|
---|
1054 | return self;
|
---|
1055 | }
|
---|
1056 |
|
---|
1057 | static mrb_value
|
---|
1058 | onig_regexp_does_set_global_variables(mrb_state* mrb, mrb_value self) {
|
---|
1059 | (void)self;
|
---|
1060 | return mrb_obj_iv_get(mrb, (struct RObject*)mrb_class_get(mrb, "OnigRegexp"),
|
---|
1061 | mrb_intern_lit(mrb, "@set_global_variables"));
|
---|
1062 | }
|
---|
1063 | static mrb_value
|
---|
1064 | onig_regexp_set_set_global_variables(mrb_state* mrb, mrb_value self) {
|
---|
1065 | mrb_value arg;
|
---|
1066 | mrb_get_args(mrb, "o", &arg);
|
---|
1067 | mrb_value const ret = mrb_bool_value(mrb_bool(arg));
|
---|
1068 | mrb_obj_iv_set(mrb, (struct RObject*)mrb_class_get(mrb, "OnigRegexp"),
|
---|
1069 | mrb_intern_lit(mrb, "@set_global_variables"), ret);
|
---|
1070 | onig_regexp_clear_global_variables(mrb, self);
|
---|
1071 | return ret;
|
---|
1072 | }
|
---|
1073 |
|
---|
1074 | // ISO 15.2.15.6.2
|
---|
1075 | static mrb_value
|
---|
1076 | onig_regexp_escape(mrb_state* mrb, mrb_value self) {
|
---|
1077 | char* str_begin; mrb_args_int str_len;
|
---|
1078 | mrb_get_args(mrb, "s", &str_begin, &str_len);
|
---|
1079 |
|
---|
1080 | mrb_value const ret = mrb_str_new(mrb, NULL, 0);
|
---|
1081 | char escaped_char = 0;
|
---|
1082 | int substr_count = 0;
|
---|
1083 | char const* str = str_begin;
|
---|
1084 |
|
---|
1085 | for(; str < (str_begin + str_len); ++str) {
|
---|
1086 | switch(*str) {
|
---|
1087 | case '\n': escaped_char = 'n'; break;
|
---|
1088 | case '\t': escaped_char = 't'; break;
|
---|
1089 | case '\r': escaped_char = 'r'; break;
|
---|
1090 | case '\f': escaped_char = 'f'; break;
|
---|
1091 |
|
---|
1092 | case ' ':
|
---|
1093 | case '#':
|
---|
1094 | case '$':
|
---|
1095 | case '(':
|
---|
1096 | case ')':
|
---|
1097 | case '*':
|
---|
1098 | case '+':
|
---|
1099 | case '-':
|
---|
1100 | case '.':
|
---|
1101 | case '?':
|
---|
1102 | case '[':
|
---|
1103 | case '\\':
|
---|
1104 | case ']':
|
---|
1105 | case '^':
|
---|
1106 | case '{':
|
---|
1107 | case '|':
|
---|
1108 | case '}':
|
---|
1109 | escaped_char = *str; break;
|
---|
1110 |
|
---|
1111 | default: ++substr_count; continue;
|
---|
1112 | }
|
---|
1113 |
|
---|
1114 | mrb_str_cat(mrb, ret, str - substr_count, substr_count);
|
---|
1115 | substr_count = 0;
|
---|
1116 |
|
---|
1117 | char const c[] = { '\\', escaped_char };
|
---|
1118 | mrb_str_cat(mrb, ret, c, 2);
|
---|
1119 | }
|
---|
1120 | mrb_str_cat(mrb, ret, str - substr_count, substr_count);
|
---|
1121 | return ret;
|
---|
1122 | }
|
---|
1123 |
|
---|
1124 | void
|
---|
1125 | mrb_mruby_onig_regexp_gem_init(mrb_state* mrb) {
|
---|
1126 | struct RClass *clazz;
|
---|
1127 |
|
---|
1128 | clazz = mrb_define_class(mrb, "OnigRegexp", mrb->object_class);
|
---|
1129 | MRB_SET_INSTANCE_TT(clazz, MRB_TT_DATA);
|
---|
1130 |
|
---|
1131 | // enable global variables setting in onig_match_common by default
|
---|
1132 | mrb_obj_iv_set(mrb, (struct RObject*)clazz, mrb_intern_lit(mrb, "@set_global_variables"), mrb_true_value());
|
---|
1133 |
|
---|
1134 | mrb_define_const(mrb, clazz, "IGNORECASE", mrb_fixnum_value(ONIG_OPTION_IGNORECASE));
|
---|
1135 | mrb_define_const(mrb, clazz, "EXTENDED", mrb_fixnum_value(ONIG_OPTION_EXTEND));
|
---|
1136 | mrb_define_const(mrb, clazz, "MULTILINE", mrb_fixnum_value(ONIG_OPTION_MULTILINE));
|
---|
1137 | mrb_define_const(mrb, clazz, "SINGLELINE", mrb_fixnum_value(ONIG_OPTION_SINGLELINE));
|
---|
1138 | mrb_define_const(mrb, clazz, "FIND_LONGEST", mrb_fixnum_value(ONIG_OPTION_FIND_LONGEST));
|
---|
1139 | mrb_define_const(mrb, clazz, "FIND_NOT_EMPTY", mrb_fixnum_value(ONIG_OPTION_FIND_NOT_EMPTY));
|
---|
1140 | mrb_define_const(mrb, clazz, "NEGATE_SINGLELINE", mrb_fixnum_value(ONIG_OPTION_NEGATE_SINGLELINE));
|
---|
1141 | mrb_define_const(mrb, clazz, "DONT_CAPTURE_GROUP", mrb_fixnum_value(ONIG_OPTION_DONT_CAPTURE_GROUP));
|
---|
1142 | mrb_define_const(mrb, clazz, "CAPTURE_GROUP", mrb_fixnum_value(ONIG_OPTION_CAPTURE_GROUP));
|
---|
1143 | mrb_define_const(mrb, clazz, "NOTBOL", mrb_fixnum_value(ONIG_OPTION_NOTBOL));
|
---|
1144 | mrb_define_const(mrb, clazz, "NOTEOL", mrb_fixnum_value(ONIG_OPTION_NOTEOL));
|
---|
1145 | #ifdef ONIG_OPTION_POSIX_REGION
|
---|
1146 | mrb_define_const(mrb, clazz, "POSIX_REGION", mrb_fixnum_value(ONIG_OPTION_POSIX_REGION));
|
---|
1147 | #endif
|
---|
1148 | #ifdef ONIG_OPTION_ASCII_RANGE
|
---|
1149 | mrb_define_const(mrb, clazz, "ASCII_RANGE", mrb_fixnum_value(ONIG_OPTION_ASCII_RANGE));
|
---|
1150 | #endif
|
---|
1151 | #ifdef ONIG_OPTION_POSIX_BRACKET_ALL_RANGE
|
---|
1152 | mrb_define_const(mrb, clazz, "POSIX_BRACKET_ALL_RANGE", mrb_fixnum_value(ONIG_OPTION_POSIX_BRACKET_ALL_RANGE));
|
---|
1153 | #endif
|
---|
1154 | #ifdef ONIG_OPTION_WORD_BOUND_ALL_RANGE
|
---|
1155 | mrb_define_const(mrb, clazz, "WORD_BOUND_ALL_RANGE", mrb_fixnum_value(ONIG_OPTION_WORD_BOUND_ALL_RANGE));
|
---|
1156 | #endif
|
---|
1157 | #ifdef ONIG_OPTION_NEWLINE_CRLF
|
---|
1158 | mrb_define_const(mrb, clazz, "NEWLINE_CRLF", mrb_fixnum_value(ONIG_OPTION_NEWLINE_CRLF));
|
---|
1159 | #endif
|
---|
1160 | #ifdef ONIG_OPTION_NOTBOS
|
---|
1161 | mrb_define_const(mrb, clazz, "NOTBOS", mrb_fixnum_value(ONIG_OPTION_NOTBOS));
|
---|
1162 | #endif
|
---|
1163 | #ifdef ONIG_OPTION_NOTEOS
|
---|
1164 | mrb_define_const(mrb, clazz, "NOTEOS", mrb_fixnum_value(ONIG_OPTION_NOTEOS));
|
---|
1165 | #endif
|
---|
1166 |
|
---|
1167 | mrb_define_method(mrb, clazz, "initialize", onig_regexp_initialize, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(2));
|
---|
1168 | mrb_define_method(mrb, clazz, "==", onig_regexp_equal, MRB_ARGS_REQ(1));
|
---|
1169 | mrb_define_method(mrb, clazz, "match", onig_regexp_match, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1));
|
---|
1170 | mrb_define_method(mrb, clazz, "match?", onig_regexp_match_p, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1));
|
---|
1171 | mrb_define_method(mrb, clazz, "casefold?", onig_regexp_casefold_p, MRB_ARGS_NONE());
|
---|
1172 |
|
---|
1173 | mrb_define_method(mrb, clazz, "options", onig_regexp_options, MRB_ARGS_NONE());
|
---|
1174 | mrb_define_method(mrb, clazz, "inspect", onig_regexp_inspect, MRB_ARGS_NONE());
|
---|
1175 | mrb_define_method(mrb, clazz, "to_s", onig_regexp_to_s, MRB_ARGS_NONE());
|
---|
1176 |
|
---|
1177 | mrb_define_module_function(mrb, clazz, "escape", onig_regexp_escape, MRB_ARGS_REQ(1));
|
---|
1178 | mrb_define_module_function(mrb, clazz, "quote", onig_regexp_escape, MRB_ARGS_REQ(1));
|
---|
1179 | mrb_define_module_function(mrb, clazz, "version", onig_regexp_version, MRB_ARGS_NONE());
|
---|
1180 | mrb_define_module_function(mrb, clazz, "set_global_variables?", onig_regexp_does_set_global_variables, MRB_ARGS_NONE());
|
---|
1181 | mrb_define_module_function(mrb, clazz, "set_global_variables=", onig_regexp_set_set_global_variables, MRB_ARGS_REQ(1));
|
---|
1182 | mrb_define_module_function(mrb, clazz, "clear_global_variables", onig_regexp_clear_global_variables, MRB_ARGS_NONE());
|
---|
1183 |
|
---|
1184 | struct RClass* match_data = mrb_define_class(mrb, "OnigMatchData", mrb->object_class);
|
---|
1185 | MRB_SET_INSTANCE_TT(clazz, MRB_TT_DATA);
|
---|
1186 | mrb_undef_class_method(mrb, match_data, "new");
|
---|
1187 |
|
---|
1188 | // mrb_define_method(mrb, match_data, "==", &match_data_eq);
|
---|
1189 | mrb_define_method(mrb, match_data, "[]", &match_data_index, MRB_ARGS_REQ(1));
|
---|
1190 | mrb_define_method(mrb, match_data, "begin", &match_data_begin, MRB_ARGS_REQ(1));
|
---|
1191 | mrb_define_method(mrb, match_data, "captures", &match_data_captures, MRB_ARGS_NONE());
|
---|
1192 | mrb_define_method(mrb, match_data, "end", &match_data_end, MRB_ARGS_REQ(1));
|
---|
1193 | // mrb_define_method(mrb, match_data, "eql?", &match_data_eq);
|
---|
1194 | // mrb_define_method(mrb, match_data, "hash", &match_data_hash);
|
---|
1195 | mrb_define_method(mrb, match_data, "initialize_copy", &match_data_copy, MRB_ARGS_REQ(1));
|
---|
1196 | // mrb_define_method(mrb, match_data, "inspect", &match_data_inspect);
|
---|
1197 | mrb_define_method(mrb, match_data, "length", &match_data_length, MRB_ARGS_NONE());
|
---|
1198 | // mrb_define_method(mrb, match_data, "names", &match_data_names);
|
---|
1199 | mrb_define_method(mrb, match_data, "offset", &match_data_offset, MRB_ARGS_REQ(1));
|
---|
1200 | mrb_define_method(mrb, match_data, "post_match", &match_data_post_match, MRB_ARGS_NONE());
|
---|
1201 | mrb_define_method(mrb, match_data, "pre_match", &match_data_pre_match, MRB_ARGS_NONE());
|
---|
1202 | mrb_define_method(mrb, match_data, "regexp", &match_data_regexp, MRB_ARGS_NONE());
|
---|
1203 | mrb_define_method(mrb, match_data, "size", &match_data_length, MRB_ARGS_NONE());
|
---|
1204 | mrb_define_method(mrb, match_data, "string", &match_data_string, MRB_ARGS_NONE());
|
---|
1205 | mrb_define_method(mrb, match_data, "to_a", &match_data_to_a, MRB_ARGS_NONE());
|
---|
1206 | mrb_define_method(mrb, match_data, "to_s", &match_data_to_s, MRB_ARGS_NONE());
|
---|
1207 | // mrb_define_method(mrb, match_data, "values_at", &match_data_values_at);
|
---|
1208 |
|
---|
1209 | mrb_define_method(mrb, mrb->string_class, "onig_regexp_gsub", &string_gsub, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1) | MRB_ARGS_BLOCK());
|
---|
1210 | mrb_define_method(mrb, mrb->string_class, "onig_regexp_sub", &string_sub, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1) | MRB_ARGS_BLOCK());
|
---|
1211 | mrb_define_method(mrb, mrb->string_class, "onig_regexp_split", &string_split, MRB_ARGS_REQ(1));
|
---|
1212 | mrb_define_method(mrb, mrb->string_class, "onig_regexp_scan", &string_scan, MRB_ARGS_REQ(1) | MRB_ARGS_BLOCK());
|
---|
1213 | mrb_define_method(mrb, mrb->string_class, "onig_regexp_match?", &string_match_p, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1));
|
---|
1214 | }
|
---|
1215 |
|
---|
1216 | void
|
---|
1217 | mrb_mruby_onig_regexp_gem_final(mrb_state* mrb) {
|
---|
1218 | (void)mrb;
|
---|
1219 | }
|
---|
1220 |
|
---|
1221 | // vim:set et:
|
---|