GNU bug report logs - #28339
25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space

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Package: emacs;

Reported by: Nima Aryan <nimawebgard <at> gmail.com>

Date: Sun, 3 Sep 2017 16:41:01 UTC

Severity: normal

Found in version 25.2

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: handa <handa <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: nimawebgard <at> gmail.com, 28339 <at> debbugs.gnu.org
Subject: bug#28339: 25.2; Emacs shows ZWNJ character (Zero Width non-Joiner) as Space
Date: Thu, 14 Sep 2017 21:24:28 +0900

In article <83wp52od4m.fsf <at> gnu.org>, Eli Zaretskii <eliz <at> gnu.org> writes:

> I thought that the shaping engine returns to us a series of grapheme
> clusters that completely replaces ZWNJ and the neighboring characters,
> and that therefore we only need to display the glyphs returned by the
> shaper.  If one of the glyphs returned by the shaper is ZWNJ, then
> isn't the shaper doing a poor job?

Each Arabic character constitutes a grapheme cluster.  Then, for the
sequence "0646 0645 06CC 200C 0634 0648 062F", to which neighboring should
200C belongs to?  Does Unicode define it?

Anyway, is it convenient or inconvenient to be able to edit ZWNJ directly?
This bug report was last modified 4 years and 259 days ago.

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