2008-12-01 Geoffrey Garen <[email protected]>
Reviewed by Cameron Zwarich, with help from Gavin Barraclough.
Fixed https://bugs.webkit.org/show_bug.cgi?id=22583.
Refactored regular expression parsing to parse sequences of characters
as a single unit, in preparation for optimizing sequences of characters.
SunSpider reports no change.
- JavaScriptCore.xcodeproj/project.pbxproj:
- wrec/Escapes.h: Added. Set of classes for representing an escaped
token in a pattern.
- wrec/Quantifier.h:
(JSC::WREC::Quantifier::Quantifier): Simplified this constructor slightly,
to match the new Escape constructor.
- wrec/WRECGenerator.cpp:
(JSC::WREC::Generator::generatePatternCharacterSequence):
- wrec/WRECGenerator.h: Added an interface for generating a sequence
of pattern characters at a time. It doesn't do anything special yet.
- wrec/WRECParser.cpp:
(JSC::WREC::Parser::consumeGreedyQuantifier):
(JSC::WREC::Parser::consumeQuantifier): Renamed "parse" to "consume" in
these functions, to match "consumeEscape."
(JSC::WREC::Parser::parsePatternCharacterSequence): New function for
iteratively aggregating a sequence of characters in a pattern.
(JSC::WREC::Parser::parseCharacterClassQuantifier):
(JSC::WREC::Parser::parseBackreferenceQuantifier): Renamed "parse" to
"consume" in these functions, to match "consumeEscape."
(JSC::WREC::Parser::parseCharacterClass): Refactored to use the common
escape processing code in consumeEscape.
(JSC::WREC::Parser::parseEscape): Refactored to use the common
escape processing code in consumeEscape.
(JSC::WREC::Parser::consumeEscape): Factored escaped token processing
into a common function, since we were doing this in a few places.
(JSC::WREC::Parser::parseTerm): Refactored to use the common
escape processing code in consumeEscape.
- wrec/WRECParser.h:
(JSC::WREC::Parser::consumeOctal): Refactored to use a helper function
for reading a digit.
