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bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as S
From: |
Benjamin Riefenstahl |
Subject: |
bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space |
Date: |
Sat, 16 Sep 2017 20:05:23 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (gnu/linux) |
>> From: Benjamin Riefenstahl <b.riefenstahl@turtle-trading.net>
>> I thought that with OpenType at least that depends on the font?
Eli Zaretskii writes:
> It does, but Handa-san seems to say that even the best fonts don't
> consider ZWNJ part of any grapheme cluster, and always leave it alone.
It breaks shaping and ligatures, so the result is not a cluster by
definition, I think. To the contrary, it breaks the cluster. Or maybe
the terminology confuses me.
>> For editing, I would like a hair-line type glyph to delete.
>
> We already have a solution for deleting a character which was composed
> with the preceding one(s). So I think this aspects doesn't have to be
> a factor in our decision how to display ZWNJ.
What I mean is, I would want to see something that I can delete (and
re-add) on its own, with the only other conseqence that the neighboring
characters change shape.
>> * Hightlighting ZWNJ in read-only text while searching for it with
>> incremental search.
>
> In general, search should ignore ZWNJ and similar controls, at least
> the "folding" search.
I was thinking about searching explicitly for ZWNJ, e.g. to find and
delete wrong uses, or to find out how another auther has achieved a
particular effect.
>> * User-specified replacement via display tables.
>
> We already have the glyphless-char-display-control feature for that.
Right, I was thinking, if I wanted to implement ZWNJ as a glyph and I
did not want to rely on the font to provide a glyph, I would create my
own glyph and use that. But I would want the user to be able to replace
it.
benny
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, (continued)
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/11
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, handa, 2017/09/13
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/13
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, handa, 2017/09/14
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/14
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, handa, 2017/09/15
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Nima Aryan, 2017/09/16
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/16
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Benjamin Riefenstahl, 2017/09/16
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/16
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space,
Benjamin Riefenstahl <=
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/16
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/16
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, handa, 2017/09/17
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/18
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, handa, 2017/09/19
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Eli Zaretskii, 2017/09/20
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Benjamin Riefenstahl, 2017/09/18
- bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space, Nima Aryan, 2017/09/14
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