381 function AtSurrogatePair(subject, index) {  argument
382   if (index + 1 >= subject.length) return false;
383   var first = %_StringCharCodeAt(subject, index);
385   var second = %_StringCharCodeAt(subject, index + 1);
399   var subject = TO_STRING(string);
402   var length = subject.length;
407     if (DoRegExpExec(separator, subject, 0, 0) !== null) return [];
408     return [subject];
419       result[result.length] = %_SubString(subject, currentIndex, length);
423     var matchInfo = DoRegExpExec(separator, subject, startIndex);
425       result[result.length] = %_SubString(subject, currentIndex, length);
432       if (REGEXP_UNICODE(this) && AtSurrogatePair(subject, startIndex)) {
440     result[result.length] = %_SubString(subject, currentIndex, startMatch);
449         result[result.length] = %_SubString(subject, start, end);
584 function StringReplaceGlobalRegExpWithFunction(subject, regexp, replace) {  argument
596                                 subject,
603     return subject;
624         var func_result = replace(elem, match_start, subject);
644   var result = %StringBuilderConcat(res, len, subject);
664 function StringReplaceNonGlobalRegExpWithFunction(subject, regexp, replace) {  argument
665   var matchInfo = DoRegExpExec(regexp, subject, 0);
668     return subject;
671   var result = %_SubString(subject, 0, index);
680     var s = %_SubString(subject, index, endOfMatch);
682     replacement = replace(s, index, subject);
686       parameters[j] = CaptureString(subject, matchInfo, j);
689     parameters[j + 1] = subject;
697   return result + %_SubString(subject, endOfMatch, subject.length);
706   var subject = TO_STRING(string);
714       var match = DoRegExpExec(search, subject, 0);
717         return subject;
720         return %_SubString(subject, 0, match[CAPTURE0]) +
721                %_SubString(subject, match[CAPTURE1], subject.length)
723       return ExpandReplacement(replace, subject, RegExpLastMatchInfo,
724                                  %_SubString(subject, 0, match[CAPTURE0])) +
725              %_SubString(subject, match[CAPTURE1], subject.length);
731         subject, search, replace, RegExpLastMatchInfo);
736     return StringReplaceGlobalRegExpWithFunction(subject, search, replace);
739   return StringReplaceNonGlobalRegExpWithFunction(subject, search, replace);
988   var subject;
990   subject = LAST_SUBJECT(RegExpLastMatchInfo);
991   return %_SubString(subject, 0, start_index);
997   var subject;
999   subject = LAST_SUBJECT(RegExpLastMatchInfo);
1000   return %_SubString(subject, start_index, subject.length);
1208 function InternalRegExpMatch(regexp, subject) {  argument
1209   var matchInfo = %_RegExpExec(regexp, subject, 0, InternalRegExpMatchInfo);
1211     RETURN_NEW_RESULT_FROM_MATCH_INFO(matchInfo, subject);
1216 function InternalRegExpReplace(regexp, subject, replacement) {  argument
1218       subject, regexp, replacement, InternalRegExpMatchInfo);