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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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129 // behavior. | 129 // behavior. |
130 if (IS_UNDEFINED(pattern) && %_ArgumentsLength() != 0) { | 130 if (IS_UNDEFINED(pattern) && %_ArgumentsLength() != 0) { |
131 DoConstructRegExp(this, 'undefined', flags, false); | 131 DoConstructRegExp(this, 'undefined', flags, false); |
132 } else { | 132 } else { |
133 DoConstructRegExp(this, pattern, flags, false); | 133 DoConstructRegExp(this, pattern, flags, false); |
134 } | 134 } |
135 } | 135 } |
136 | 136 |
137 | 137 |
138 function DoRegExpExec(regexp, string, index) { | 138 function DoRegExpExec(regexp, string, index) { |
139 return %RegExpExec(regexp, string, index, lastMatchInfo); | 139 return %_RegExpExec(regexp, string, index, lastMatchInfo); |
140 } | 140 } |
141 | 141 |
142 | 142 |
143 function RegExpExec(string) { | 143 function RegExpExec(string) { |
144 if (!IS_REGEXP(this)) { | 144 if (!IS_REGEXP(this)) { |
145 throw MakeTypeError('method_called_on_incompatible', | 145 throw MakeTypeError('method_called_on_incompatible', |
146 ['RegExp.prototype.exec', this]); | 146 ['RegExp.prototype.exec', this]); |
147 } | 147 } |
148 if (%_ArgumentsLength() == 0) { | 148 if (%_ArgumentsLength() == 0) { |
149 var regExpInput = LAST_INPUT(lastMatchInfo); | 149 var regExpInput = LAST_INPUT(lastMatchInfo); |
150 if (IS_UNDEFINED(regExpInput)) { | 150 if (IS_UNDEFINED(regExpInput)) { |
151 throw MakeError('no_input_to_regexp', [this]); | 151 throw MakeError('no_input_to_regexp', [this]); |
152 } | 152 } |
153 string = regExpInput; | 153 string = regExpInput; |
154 } | 154 } |
155 var s = ToString(string); | 155 var s = ToString(string); |
156 var length = s.length; | 156 var length = s.length; |
157 var lastIndex = this.lastIndex; | 157 var lastIndex = this.lastIndex; |
158 var i = this.global ? TO_INTEGER(lastIndex) : 0; | 158 var i = this.global ? TO_INTEGER(lastIndex) : 0; |
159 | 159 |
160 if (i < 0 || i > s.length) { | 160 if (i < 0 || i > s.length) { |
161 this.lastIndex = 0; | 161 this.lastIndex = 0; |
162 return null; | 162 return null; |
163 } | 163 } |
164 | 164 |
165 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, s, lastIndex]); | 165 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, s, lastIndex]); |
166 // matchIndices is either null or the lastMatchInfo array. | 166 // matchIndices is either null or the lastMatchInfo array. |
167 var matchIndices = %RegExpExec(this, s, i, lastMatchInfo); | 167 var matchIndices = %_RegExpExec(this, s, i, lastMatchInfo); |
168 | 168 |
169 if (matchIndices == null) { | 169 if (matchIndices == null) { |
170 if (this.global) this.lastIndex = 0; | 170 if (this.global) this.lastIndex = 0; |
171 return matchIndices; // no match | 171 return matchIndices; // no match |
172 } | 172 } |
173 | 173 |
174 var numResults = NUMBER_OF_CAPTURES(lastMatchInfo) >> 1; | 174 var numResults = NUMBER_OF_CAPTURES(lastMatchInfo) >> 1; |
175 var result = new $Array(numResults); | 175 var result = new $Array(numResults); |
176 for (var i = 0; i < numResults; i++) { | 176 for (var i = 0; i < numResults; i++) { |
177 var matchStart = lastMatchInfo[CAPTURE(i << 1)]; | 177 var matchStart = lastMatchInfo[CAPTURE(i << 1)]; |
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214 var lastIndex = this.lastIndex; | 214 var lastIndex = this.lastIndex; |
215 var i = this.global ? TO_INTEGER(lastIndex) : 0; | 215 var i = this.global ? TO_INTEGER(lastIndex) : 0; |
216 | 216 |
217 if (i < 0 || i > s.length) { | 217 if (i < 0 || i > s.length) { |
218 this.lastIndex = 0; | 218 this.lastIndex = 0; |
219 return false; | 219 return false; |
220 } | 220 } |
221 | 221 |
222 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, s, lastIndex]); | 222 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, s, lastIndex]); |
223 // matchIndices is either null or the lastMatchInfo array. | 223 // matchIndices is either null or the lastMatchInfo array. |
224 var matchIndices = %RegExpExec(this, s, i, lastMatchInfo); | 224 var matchIndices = %_RegExpExec(this, s, i, lastMatchInfo); |
225 | 225 |
226 if (matchIndices == null) { | 226 if (matchIndices == null) { |
227 if (this.global) this.lastIndex = 0; | 227 if (this.global) this.lastIndex = 0; |
228 return false; | 228 return false; |
229 } | 229 } |
230 | 230 |
231 if (this.global) this.lastIndex = lastMatchInfo[CAPTURE1]; | 231 if (this.global) this.lastIndex = lastMatchInfo[CAPTURE1]; |
232 return true; | 232 return true; |
233 } | 233 } |
234 | 234 |
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397 %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE); | 397 %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE); |
398 | 398 |
399 for (var i = 1; i < 10; ++i) { | 399 for (var i = 1; i < 10; ++i) { |
400 %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_D
ELETE); | 400 %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_D
ELETE); |
401 %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE); | 401 %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE); |
402 } | 402 } |
403 } | 403 } |
404 | 404 |
405 | 405 |
406 SetupRegExp(); | 406 SetupRegExp(); |
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