2011-04-06 Ian Henderson <ianh@apple.com>
Reviewed by Simon Fraser, Antti Koivisto.
Fast path for parsing simple CSS values
https://bugs.webkit.org/show_bug.cgi?id=57964
Add functions to parse simple color or dimension values, skipping the
overhead of full CSS parsing.
Change parseValue to a static method to avoid unnecessary allocation
of a CSSParser in the fast case.
* css/CSSMutableStyleDeclaration.cpp:
(WebCore::CSSMutableStyleDeclaration::setProperty):
Changed to use the new, static parseValue method.
* css/CSSParser.cpp:
(WebCore::isColorPropertyID):
(WebCore::parseColorValue):
Parses any color accepted by the existing parseColor() static method.
We must handle color identifiers separately, since parseColor() will
change 'red' into 'rgb(255, 0, 0)'.
(WebCore::isSimpleLengthPropertyID):
(WebCore::parseSimpleLengthValue):
Parses a value of the form 'NNpx', 'NN%', or 'NN' (when strict is
false, or 'NN' is '0'). Returns false to fall back to the slow path.
(WebCore::CSSParser::parseValue):
* css/CSSParser.h:
* css/WebKitCSSMatrix.cpp:
(WebCore::WebKitCSSMatrix::setMatrixValue):
Changed to use the new, static parseValue method.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@83122 268f45cc-cd09-0410-ab3c-d52691b4dbfc
5 files changed
