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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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289 return result; | 289 return result; |
290 } | 290 } |
291 | 291 |
292 | 292 |
293 // Getters for the static properties lastMatch, lastParen, leftContext, and | 293 // Getters for the static properties lastMatch, lastParen, leftContext, and |
294 // rightContext of the RegExp constructor. The properties are computed based | 294 // rightContext of the RegExp constructor. The properties are computed based |
295 // on the captures array of the last successful match and the subject string | 295 // on the captures array of the last successful match and the subject string |
296 // of the last successful match. | 296 // of the last successful match. |
297 function RegExpGetLastMatch() { | 297 function RegExpGetLastMatch() { |
298 if (lastMatchInfoOverride !== null) { | 298 if (lastMatchInfoOverride !== null) { |
299 return lastMatchInfoOverride[0]; | 299 return OVERRIDE_MATCH(lastMatchInfoOverride); |
300 } | 300 } |
301 var regExpSubject = LAST_SUBJECT(lastMatchInfo); | 301 var regExpSubject = LAST_SUBJECT(lastMatchInfo); |
302 return SubString(regExpSubject, | 302 return SubString(regExpSubject, |
303 lastMatchInfo[CAPTURE0], | 303 lastMatchInfo[CAPTURE0], |
304 lastMatchInfo[CAPTURE1]); | 304 lastMatchInfo[CAPTURE1]); |
305 } | 305 } |
306 | 306 |
307 | 307 |
308 function RegExpGetLastParen() { | 308 function RegExpGetLastParen() { |
309 if (lastMatchInfoOverride) { | 309 if (lastMatchInfoOverride) { |
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327 | 327 |
328 | 328 |
329 function RegExpGetLeftContext() { | 329 function RegExpGetLeftContext() { |
330 var start_index; | 330 var start_index; |
331 var subject; | 331 var subject; |
332 if (!lastMatchInfoOverride) { | 332 if (!lastMatchInfoOverride) { |
333 start_index = lastMatchInfo[CAPTURE0]; | 333 start_index = lastMatchInfo[CAPTURE0]; |
334 subject = LAST_SUBJECT(lastMatchInfo); | 334 subject = LAST_SUBJECT(lastMatchInfo); |
335 } else { | 335 } else { |
336 var override = lastMatchInfoOverride; | 336 var override = lastMatchInfoOverride; |
337 start_index = override[override.length - 2]; | 337 start_index = OVERRIDE_POS(override); |
338 subject = override[override.length - 1]; | 338 subject = OVERRIDE_SUBJECT(override); |
339 } | 339 } |
340 return SubString(subject, 0, start_index); | 340 return SubString(subject, 0, start_index); |
341 } | 341 } |
342 | 342 |
343 | 343 |
344 function RegExpGetRightContext() { | 344 function RegExpGetRightContext() { |
345 var start_index; | 345 var start_index; |
346 var subject; | 346 var subject; |
347 if (!lastMatchInfoOverride) { | 347 if (!lastMatchInfoOverride) { |
348 start_index = lastMatchInfo[CAPTURE1]; | 348 start_index = lastMatchInfo[CAPTURE1]; |
349 subject = LAST_SUBJECT(lastMatchInfo); | 349 subject = LAST_SUBJECT(lastMatchInfo); |
350 } else { | 350 } else { |
351 var override = lastMatchInfoOverride; | 351 var override = lastMatchInfoOverride; |
352 subject = override[override.length - 1]; | 352 subject = OVERRIDE_SUBJECT(override); |
353 var pattern = override[override.length - 3]; | 353 var match = OVERRIDE_MATCH(override); |
354 start_index = override[override.length - 2] + pattern.length; | 354 start_index = OVERRIDE_POS(override) + match.length; |
355 } | 355 } |
356 return SubString(subject, start_index, subject.length); | 356 return SubString(subject, start_index, subject.length); |
357 } | 357 } |
358 | 358 |
359 | 359 |
360 // The properties $1..$9 are the first nine capturing substrings of the last | 360 // The properties $1..$9 are the first nine capturing substrings of the last |
361 // successful match, or ''. The function RegExpMakeCaptureGetter will be | 361 // successful match, or ''. The function RegExpMakeCaptureGetter will be |
362 // called with indices from 1 to 9. | 362 // called with indices from 1 to 9. |
363 function RegExpMakeCaptureGetter(n) { | 363 function RegExpMakeCaptureGetter(n) { |
364 return function() { | 364 return function() { |
365 if (lastMatchInfoOverride) { | 365 if (lastMatchInfoOverride) { |
366 if (n < lastMatchInfoOverride.length - 2) return lastMatchInfoOverride[n]; | 366 if (n < lastMatchInfoOverride.length - 2) { |
| 367 return OVERRIDE_CAPTURE(lastMatchInfoOverride, n); |
| 368 } |
367 return ''; | 369 return ''; |
368 } | 370 } |
369 var index = n * 2; | 371 var index = n * 2; |
370 if (index >= NUMBER_OF_CAPTURES(lastMatchInfo)) return ''; | 372 if (index >= NUMBER_OF_CAPTURES(lastMatchInfo)) return ''; |
371 var matchStart = lastMatchInfo[CAPTURE(index)]; | 373 var matchStart = lastMatchInfo[CAPTURE(index)]; |
372 var matchEnd = lastMatchInfo[CAPTURE(index + 1)]; | 374 var matchEnd = lastMatchInfo[CAPTURE(index + 1)]; |
373 if (matchStart == -1 || matchEnd == -1) return ''; | 375 if (matchStart == -1 || matchEnd == -1) return ''; |
374 return SubString(LAST_SUBJECT(lastMatchInfo), matchStart, matchEnd); | 376 return SubString(LAST_SUBJECT(lastMatchInfo), matchStart, matchEnd); |
375 }; | 377 }; |
376 } | 378 } |
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475 NoOpSetter, DONT_ENUM | DONT_DELETE); | 477 NoOpSetter, DONT_ENUM | DONT_DELETE); |
476 | 478 |
477 for (var i = 1; i < 10; ++i) { | 479 for (var i = 1; i < 10; ++i) { |
478 %DefineOrRedefineAccessorProperty($RegExp, '$' + i, | 480 %DefineOrRedefineAccessorProperty($RegExp, '$' + i, |
479 RegExpMakeCaptureGetter(i), NoOpSetter, | 481 RegExpMakeCaptureGetter(i), NoOpSetter, |
480 DONT_DELETE); | 482 DONT_DELETE); |
481 } | 483 } |
482 } | 484 } |
483 | 485 |
484 SetUpRegExp(); | 486 SetUpRegExp(); |
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