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| author | Ariya Hidayat <ariya.hidayat@nokia.com> | 2009-09-02 11:51:47 (GMT) |
|---|---|---|
| committer | Ariya Hidayat <ariya.hidayat@nokia.com> | 2009-09-03 11:42:40 (GMT) |
| commit | e3c62dc1def9270761ca63c73ae76fdca9d61582 (patch) | |
| tree | 4d6d091ab3533fc2876e451160cfdf04a4c4c42a /util | |
| parent | 5e3775ae4c5263a25e63868e8a3f16244e4dde02 (diff) | |
| download | Qt-e3c62dc1def9270761ca63c73ae76fdca9d61582.zip Qt-e3c62dc1def9270761ca63c73ae76fdca9d61582.tar.gz Qt-e3c62dc1def9270761ca63c73ae76fdca9d61582.tar.bz2 | |
CSS parser speed-up: skip the need to call toLower().
Instead of taking the lowercase of each tokenized character, it is
better to encode the logic in the automaton itself.
During the parsing of tiger.svg (tests/benchmarks/qsvgrenderer), the
time spent inside QCssScanner_Generated::lex() goes down from
0.53 millions instructions to just 0.23 millions (2x faster).
Autotests for qcssparser, qtextdocumentfragment, qstylesheet still pass.
Reviewed-by: Simon Hausmann
Diffstat (limited to 'util')
| -rw-r--r-- | util/lexgen/css2-simplified.lexgen | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/util/lexgen/css2-simplified.lexgen b/util/lexgen/css2-simplified.lexgen index 3976632..299ff5e 100644 --- a/util/lexgen/css2-simplified.lexgen +++ b/util/lexgen/css2-simplified.lexgen @@ -1,9 +1,8 @@ [Options] -case-insensitive classname = QCssScanner_Generated [Code Generator Options] -MapToCode[a-z] = (ch.unicode() >= 'a' && ch.unicode() <= 'z') || ch.unicode() >= 256 +MapToCode[a-z] = (ch.unicode() >= 'a' && ch.unicode() <= 'z') || (ch.unicode() >= 'A' && ch.unicode() <= 'Z') || ch.unicode() >= 256 TokenPrefix = QCss:: FileHeader = ../moc/licenseheader.txt |