perhaps I can help. what should I do, to add support for that?

You could try to fixup the highlighting xml yourself, see

https://docs.kde.org/stable5/en/applications/katepart/highlight.html

Hi,

if you want to have this, please read up on the link and provide some patch on

https://git.reviewboard.kde.org/dashboard/

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information.

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I had a look, but it seemed too complicated to me to fix that by myself.

Git commit 433e5d85979ccf91224c930da80dfc8efd1d6342 by Jonathan Poelen.
Committed on 21/08/2019 at 22:07.
Pushed by jpoelen into branch 'master'.

JSP: support of <script> and <style> ; use IncludeRule ##Java

Summary: BUG: 345003

Reviewers: #framework_syntax_highlighting, dhaumann, cullmann

Reviewed By: #framework_syntax_highlighting, dhaumann

Subscribers: kwrite-devel, kde-frameworks-devel

Tags: #kate, #frameworks

Differential Revision: https://phabricator.kde.org/D23312

M  +19   -16   autotests/folding/highlight.jsp.fold
M  +66   -63   autotests/html/highlight.jsp.html
M  +4    -1    autotests/input/highlight.jsp
M  +54   -51   autotests/reference/highlight.jsp.ref
M  +38   -2854 data/syntax/jsp.xml

https://commits.kde.org/syntax-highlighting/433e5d85979ccf91224c930da80dfc8efd1d6342

Great, thanks!