2011-02-02 Michael Saboff <msaboff@apple.com>
Reviewed by Gavin Barraclough.
Improper backtrack of nested non-capturing greedy paren to prior paren
https://bugs.webkit.org/show_bug.cgi?id=53261
A paren that follows a non-capturing greedy paren nested within a
non-capturing fixed paren was back tracking to the last paren
processed instead of the immediately prior paren.
Refactored default backtracking of parens to prior paren to work for
both nested (within) and immediately prior (after) parens.
* yarr/YarrJIT.cpp:
(JSC::Yarr::YarrGenerator::GenerationState::addParenthesesTail):
(JSC::Yarr::YarrGenerator::TermGenerationState::TermGenerationState):
(JSC::Yarr::YarrGenerator::TermGenerationState::setJumpListToPriorParen):
(JSC::Yarr::YarrGenerator::TermGenerationState::getJumpListToPriorParen):
(JSC::Yarr::YarrGenerator::ParenthesesTail::ParenthesesTail):
(JSC::Yarr::YarrGenerator::ParenthesesTail::generateCode):
(JSC::Yarr::YarrGenerator::generateParenthesesDisjunction):
(JSC::Yarr::YarrGenerator::generateParenthesesSingle):
(JSC::Yarr::YarrGenerator::generateDisjunction):
2011-02-02 Michael Saboff <msaboff@apple.com>
Reviewed by Gavin Barraclough.
Improper backtrack of nested non-capturing greedy paren to prior paren
https://bugs.webkit.org/show_bug.cgi?id=53261
New tests to validate change.
* fast/regex/parentheses-expected.txt:
* fast/regex/script-tests/parentheses.js:
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@77439 268f45cc-cd09-0410-ab3c-d52691b4dbfc
5 files changed
