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bug#54488: 29.0.50; move-to-column/overlay-related regression in latest
From: |
Eli Zaretskii |
Subject: |
bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28? |
Date: |
Thu, 24 Mar 2022 17:29:25 +0200 |
> From: João Távora <joaotavora@gmail.com>
> Cc: dgutov@yandex.ru, 54488@debbugs.gnu.org
> Date: Thu, 24 Mar 2022 15:01:30 +0000
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> > I see that you had problems reconciling the LSP idea of "columns" with
> > that of Emacs. If LSP indeed works in UTF-16 (I don't know, but I
> > have no reason to doubt that), then I think your solution is decent,
> > although actually encoding stuff could be overhead: after all, whether
> > a given codepoint takes 1 or 2 UTF-16 code units can be easily
> > established by looking at the codepoints themselves. But that's an
> > optimization.
>
> An interesting one, though. I think I follow. Is there some easy way
> in Emacs to measure how many UTF-16 code units a given codepoint takes?
That's easy: any codepoint above #xFFFF needs 2 UTF-16 code units.
> I'm afraid I evicted this knowledge from the cache since I made that fix
> 2,5 years ago... Is a "codepoint" here a character in a string/buffer?
Yes.
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, (continued)
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Dmitry Gutov, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/23
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/23
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/23
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/24
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?,
Eli Zaretskii <=
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/24
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/24
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/23
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Eli Zaretskii, 2022/03/23
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/24
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, Dmitry Gutov, 2022/03/22
- bug#54488: 29.0.50; move-to-column/overlay-related regression in latest master, perhaps 28?, João Távora, 2022/03/22