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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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228 string = regExpInput; | 228 string = regExpInput; |
229 } | 229 } |
230 | 230 |
231 string = TO_STRING_INLINE(string); | 231 string = TO_STRING_INLINE(string); |
232 | 232 |
233 var lastIndex = this.lastIndex; | 233 var lastIndex = this.lastIndex; |
234 | 234 |
235 // Conversion is required by the ES5 specification (RegExp.prototype.exec | 235 // Conversion is required by the ES5 specification (RegExp.prototype.exec |
236 // algorithm, step 5) even if the value is discarded for non-global RegExps. | 236 // algorithm, step 5) even if the value is discarded for non-global RegExps. |
237 var i = TO_INTEGER(lastIndex); | 237 var i = TO_INTEGER(lastIndex); |
238 | 238 |
239 if (this.global) { | 239 if (this.global) { |
240 if (i < 0 || i > string.length) { | 240 if (i < 0 || i > string.length) { |
241 this.lastIndex = 0; | 241 this.lastIndex = 0; |
242 return false; | 242 return false; |
243 } | 243 } |
244 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, string, lastIndex]); | 244 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, string, lastIndex]); |
245 // matchIndices is either null or the lastMatchInfo array. | 245 // matchIndices is either null or the lastMatchInfo array. |
246 var matchIndices = %_RegExpExec(this, string, i, lastMatchInfo); | 246 var matchIndices = %_RegExpExec(this, string, i, lastMatchInfo); |
247 if (matchIndices === null) { | 247 if (matchIndices === null) { |
248 this.lastIndex = 0; | 248 this.lastIndex = 0; |
249 return false; | 249 return false; |
250 } | 250 } |
251 lastMatchInfoOverride = null; | 251 lastMatchInfoOverride = null; |
252 this.lastIndex = lastMatchInfo[CAPTURE1]; | 252 this.lastIndex = lastMatchInfo[CAPTURE1]; |
253 return true; | 253 return true; |
254 } else { | 254 } else { |
255 // Non-global regexp. | 255 // Non-global regexp. |
256 // Remove irrelevant preceeding '.*' in a non-global test regexp. | 256 // Remove irrelevant preceeding '.*' in a non-global test regexp. |
257 // The expression checks whether this.source starts with '.*' and | 257 // The expression checks whether this.source starts with '.*' and |
258 // that the third char is not a '?'. | 258 // that the third char is not a '?'. |
259 if (%_StringCharCodeAt(this.source, 0) == 46 && // '.' | 259 if (%_StringCharCodeAt(this.source, 0) == 46 && // '.' |
260 %_StringCharCodeAt(this.source, 1) == 42 && // '*' | 260 %_StringCharCodeAt(this.source, 1) == 42 && // '*' |
261 %_StringCharCodeAt(this.source, 2) != 63) { // '?' | 261 %_StringCharCodeAt(this.source, 2) != 63) { // '?' |
262 if (!%_ObjectEquals(regexp_key, this)) { | 262 if (!%_ObjectEquals(regexp_key, this)) { |
263 regexp_key = this; | 263 regexp_key = this; |
264 regexp_val = new $RegExp(SubString(this.source, 2, this.source.length), | 264 regexp_val = new $RegExp(SubString(this.source, 2, this.source.length), |
265 (!this.ignoreCase | 265 (!this.ignoreCase |
266 ? !this.multiline ? "" : "m" | 266 ? !this.multiline ? "" : "m" |
267 : !this.multiline ? "i" : "im")); | 267 : !this.multiline ? "i" : "im")); |
268 } | 268 } |
269 if (%_RegExpExec(regexp_val, string, 0, lastMatchInfo) === null) { | 269 if (%_RegExpExec(regexp_val, string, 0, lastMatchInfo) === null) { |
270 return false; | 270 return false; |
271 } | 271 } |
272 } | 272 } |
273 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, string, lastIndex]); | 273 %_Log('regexp', 'regexp-exec,%0r,%1S,%2i', [this, string, lastIndex]); |
274 // matchIndices is either null or the lastMatchInfo array. | 274 // matchIndices is either null or the lastMatchInfo array. |
275 var matchIndices = %_RegExpExec(this, string, 0, lastMatchInfo); | 275 var matchIndices = %_RegExpExec(this, string, 0, lastMatchInfo); |
276 if (matchIndices === null) return false; | 276 if (matchIndices === null) return false; |
277 lastMatchInfoOverride = null; | 277 lastMatchInfoOverride = null; |
278 return true; | 278 return true; |
279 } | 279 } |
280 } | 280 } |
281 | 281 |
282 | 282 |
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474 %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE); | 474 %DefineAccessor($RegExp, "$'", SETTER, NoOpSetter, DONT_ENUM | DONT_DELETE); |
475 | 475 |
476 for (var i = 1; i < 10; ++i) { | 476 for (var i = 1; i < 10; ++i) { |
477 %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_D
ELETE); | 477 %DefineAccessor($RegExp, '$' + i, GETTER, RegExpMakeCaptureGetter(i), DONT_D
ELETE); |
478 %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE); | 478 %DefineAccessor($RegExp, '$' + i, SETTER, NoOpSetter, DONT_DELETE); |
479 } | 479 } |
480 } | 480 } |
481 | 481 |
482 | 482 |
483 SetupRegExp(); | 483 SetupRegExp(); |
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