jpoelen added a comment.
I just tried with a format containing 5000 `<RegExpr attribute="Keyword"
context="\#stay" String="\baa\b"/>` rules. This gives 2000 to 6000 more
allocation than with WordDetect. Same for StringDetect vs Detect2Chars.
At the speed level, for a single rule and a file with 13 * 8000 `aa `,
WordDetect is 10% faster, but there is no difference between StringDetect and
Detect2Chars. On the other hand, the more the number of rule increases the more
the difference is important, even between StringDetect and Detect2Chars. 5000
times the same rule is extremely slow.
The memory test is done with `XDG_DATA_DIRS=$PWD memusage
kate-syntax-highlighter x.aa >/dev/null`
Speed one with `XDG_DATA_DIRS=$PWD /usr/bin/time --format="%Es - %MK"
kate-syntax-highlighter x.aa >/dev/null`
$PWD/org.kde.syntax-highlighting/syntax/aa.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE language SYSTEM "language.dtd">
<language name="AAAA" section="Configuration" extensions="*.aa" mimetype=""
version="3" kateversion="2.4" author="jo" license="LGPL">
<highlighting>
<contexts>
<context name="ini" attribute="Normal Text" lineEndContext="#stay">
<StringDetect attribute="Keyword" context="#stay" String="aa" />
<!-- <Detect2Chars attribute="Keyword" context="#stay" char="a"
char1="a" /> -->
<!-- <WordDetect attribute="Keyword" context="#stay" String="aa" /> -->
<!-- <RegExpr attribute="Keyword" context="#stay" String="\baa\b" /> -->
</context>
</contexts>
<itemDatas>
<itemData name="Normal Text" defStyleNum="dsDataType" />
<itemData name="Keyword" defStyleNum="dsKeyword" />
</itemDatas>
</highlighting>
</language>
REPOSITORY
R216 Syntax Highlighting
REVISION DETAIL
https://phabricator.kde.org/D10621
To: jpoelen, dhaumann
Cc: vkrause, #framework_syntax_highlighting, dhaumann, #frameworks, michaelh,
genethomas, ngraham, cullmann
