GNU bug report logs -
#41454
28.0.50; [".+" 0 font-shape-gstring] composition rule breaks paren highlighting
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Reported by: Pip Cet <pipcet <at> gmail.com>
Date: Fri, 22 May 2020 12:51:02 UTC
Severity: normal
Found in version 28.0.50
Done: Pip Cet <pipcet <at> gmail.com>
Bug is archived. No further changes may be made.
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Message #20 received at 41454 <at> debbugs.gnu.org (full text, mbox):
> Date: Sun, 31 May 2020 20:50:07 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 41454 <at> debbugs.gnu.org
>
> The problem is that the entire sequence of characters that matches
> the regexp is passed to the shaper, and the result is stored as a
> single composition. And we have special code in the display engine
> not to break sequences of potentially-composed characters when
> handling faces (see compute_stop_pos). So I think there might be
> some bug there which shows when a composition comprises more than a
> single grapheme cluster, and some face is applied to them.
On second thought, I'm not sure this is the right place to look at.
It could be fill_gstring_glyph_string and BUILD_GSTRING_GLYPH_STRING
instead (and the respective *term.c display functions).
This bug report was last modified 4 years and 355 days ago.
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