LaTeX: fix backslash delimiter in some keywords
Summary:
BUG: 413493
FIXED-IN: 5.64.0
A delimiter before keywords of kind \command isn't required. Therefore, a DetectChar rule with lookAhead is used to detect \ at the beginning of the keywords, and thus avoid the delimiter in the keyword.
Reviewers: Framework: Syntax Highlighting, dhaumann, cullmann, jpoelen
Reviewed By: Framework: Syntax Highlighting, cullmann
Subscribers: kwrite-devel, kde-frameworks-devel
Tags: Kate, Frameworks
Differential Revision: https://phabricator.kde.org/D25139