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bug#57072: [BUG] update-glyphless-char-display and variation selectors
From: |
Eli Zaretskii |
Subject: |
bug#57072: [BUG] update-glyphless-char-display and variation selectors |
Date: |
Wed, 10 Aug 2022 16:10:46 +0300 |
> From: Axel Svensson <svenssonaxel@gmail.com>
> Date: Tue, 9 Aug 2022 22:33:40 +0200
> Cc: 57072@debbugs.gnu.org
>
> > Now, VS16 is almost always composed with preceding characters, so I
> > think you can only see it as acronym if you deliberately force Emacs
> > not to compose it, e.g. by preceding it with U+20DD COMBINING
> > ENCLOSING CIRCLE, or precede it and follow it by U+200C ZERO WIDTH
> > NON-JOINER, or disable auto-composition-mode.
>
> - Preceding it with U+20DD still produces the empty box
> - Preceding it and following it by U+200C still produces the empty box
> - Disabling auto-composition-mode produces the "VS16" acronym.
Yes, I think this is because of the special composition rules we have
for VS16 (which are required to display Emoji sequences correctly).
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Axel Svensson, 2022/08/09
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Eli Zaretskii, 2022/08/11
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Axel Svensson, 2022/08/11
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Eli Zaretskii, 2022/08/11
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Axel Svensson, 2022/08/11
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Eli Zaretskii, 2022/08/12
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Axel Svensson, 2022/08/12
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Eli Zaretskii, 2022/08/12
- bug#57072: [BUG] update-glyphless-char-display and variation selectors, Axel Svensson, 2022/08/12