GNU bug report logs - #41626
28.0.50; activating mark breaks RTL shaping in etc/HELLO (auto-composition-mode)

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Package: emacs;

Reported by: Pip Cet <pipcet <at> gmail.com>

Date: Sun, 31 May 2020 10:04:01 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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From: Pip Cet <pipcet <at> gmail.com>
To: 41626 <at> debbugs.gnu.org
Subject: bug#41626: 28.0.50; activating mark breaks RTL shaping in etc/HELLO (auto-composition-mode)
Date: Sun, 31 May 2020 10:02:40 +0000

[Message part 1 (text/plain, inline)]
Recipe:
start emacs -Q etc/HELLO
move point to character position 358 (ARABIC LETTER SEEN)
hit C-SPC to activate the mark

Expected result:
mark is activated, no change to shaping

Actual result:
The character at position 357 is no longer composed with the one at
position 358. (screenshot with-mark.png) whereas it was composed
before (screenshot without-mark.png)

The same thing works fine in a separate buffer in an RTL paragraph.

[without-mark.png (image/png, attachment)]
[with-mark.png (image/png, attachment)]
This bug report was last modified 4 years and 352 days ago.

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