dhaumann added a comment.
The problem likely was that Alerts.xml does not have the indentationBasedFolding attribute set. But it's needed in e.g. Python. dh@eriador:syntax :-) (check-full-formats) $ grep Alerts_indent * alert_indent.xml:<language version="4" kateversion="2.4" name="Alerts_indent" section="Other" extensions="" mimetype="" author="Dominik Haumann (dhaum...@kde.org)" license="MIT" hidden="true"> coffee.xml: <IncludeRules context="##Alerts_indent"/> coffee.xml: <IncludeRules context="##Alerts_indent"/> pig.xml: <IncludeRules context="##Alerts_indent" /> prolog.xml: <IncludeRules context="##Alerts_indent" /> prolog.xml: <IncludeRules context="##Alerts_indent" /> python.xml: <IncludeRules context="##Alerts_indent" /> python.xml: <IncludeRules context="##Alerts_indent" /> python.xml: <IncludeRules context="##Alerts_indent" /> python.xml: <IncludeRules context="##Alerts_indent" /> REPOSITORY R216 Syntax Highlighting REVISION DETAIL https://phabricator.kde.org/D14978 To: dhaumann, cullmann, vkrause Cc: kwrite-devel, kde-frameworks-devel, michaelh, kevinapavew, ngraham, bruns, demsking, cullmann, sars, dhaumann