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Re: 22.2.50; Display of "zero width no-break space" (U+FEFF)

From: Reiner Steib
Subject: Re: 22.2.50; Display of "zero width no-break space" (U+FEFF)
Date: Mon, 21 Apr 2008 13:51:09 +0200
User-agent: Gnus/5.110009 (No Gnus v0.9) Emacs/22.2.50 (gnu/linux)

[ The following message is a courtesy copy of an article that has
  been posted to news:gmane.emacs.devel as well. ]

On Mon, Apr 21 2008, Eli Zaretskii wrote:

>> From: Juri Linkov <address@hidden>
>> This is the same character as BOM.  But since it is *ZERO-WIDTH*
>> NO-BREAK SPACE, it seems it shouldn't be displayed at all in view mode.
>> But it edit mode, it would be preferable to have some indication
>> about the presence of this character in the buffer.

If "view mode" is meant to be more general than the minor mode
`view-mode', I agree.  E.g. in Gnus article buffer (a read-only buffer
where articles are displayed), `nobreak-char-display' is set to nil
whereas when composing or replying, Emacs' default is used.

> I think there will be many characters such as U+FEFF defined by
> Unicode that we will need to decide how to display in various modes.
> It's not right, IMO, to decide about their display one by one, when
> someone happens to pop a question.  We should probably have some kind
> of general policy about them.  I suggest that Someone(TM) looks at
> this issue and suggests how we should deal with these characters,
> based on Unicode recommendations and on what other Unicode-capable
> editors do.

I agree.

Bye, Reiner.
      (o o)
---ooO-(_)-Ooo---  |  PGP key available  |  http://rsteib.home.pages.de/

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