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List: kwrite-devel
Subject: Broken Code Highlighting in KDevelop
From: David Redondo <kde () david-redondo ! de>
Date: 2021-02-17 8:40:01
Message-ID: 3103571.44csPzL39Z () david-desktop
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Hi,
recently files began to start losing their highlighting when editing in
KDevelop. Symptoms are as follows:
- After inserting a new line anywhere in a document, everything below the new
line will lose its highlighting
- When writing in the new line, the new code is highlighted correctly
- Removing the new line restores correct highlighting in the rest of the file
Yesterday after an older KDevelop showed the same behavior, I bisected
fde333c87353e7c7424c7bce5cbc2f984bc868c1 in KTextEditor to have introduced
this. Nothing there immediately appears to me to cause this.
With the power of debug statements I confirmed that KDevelop reaches the
"applyHighlighting" function (https://invent.kde.org/kdevelop/kdevelop/-/blob/
master/kdevplatform/language/highlighting/codehighlighting.cpp#L519) and is
not hitting any of the early returns. Then follows some range logic and I did
see that the setAttribute calls at the end are also happening.
I'm not sure if the KTextEditor change surfaced a bug in KDevelop (somewhere
in the range manipulation?) or if something in KTextEditor is not working
correctly.
Best Regards,
David
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