GNU bug report logs - #11072
Display of glyphless non-spacing modifiers via a static composition

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#11072: closed (Display of glyphless non-spacing modifiers via
 a static composition)
Date: Thu, 31 Oct 2019 14:14:03 +0000

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Your message dated Thu, 31 Oct 2019 16:13:34 +0200
with message-id <83lft1ngtt.fsf <at> gnu.org>
and subject line Re: bug#11072: Display of glyphless non-spacing modifiers via a static composition
has caused the debbugs.gnu.org bug report #11072,
regarding Display of glyphless non-spacing modifiers via a static composition
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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11072: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11072
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From: Eli Zaretskii <eliz <at> gnu.org>
To: Kenichi Handa <handa <at> m17n.org>
Cc: bug-gnu-emacs <at> gnu.org
Subject: Display of glyphless non-spacing modifiers via a static composition
Date: Fri, 23 Mar 2012 12:12:02 +0200

> From: Kenichi Handa <handa <at> m17n.org>
> Cc: list-general <at> mohsen.1.banan.byname.net, emacs-devel <at> gnu.org
> Date: Fri, 23 Mar 2012 10:41:07 +0900
> 
> In article <83fwd0wnwl.fsf <at> gnu.org>, Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > Btw, there's some strange problem in displaying one label of the
> > hebrew-biblical-tiro input method: the character u+05ba (inserted by
> > Shift-5 key) is displayed as a blank rectangle.  It looks like my
> > fonts have no glyph for this character, but then why don't we display
> > this like any other glyphless character: as a hex code inside a small
> > rectangle?  That's what I get if I insert this character into a
> > buffer, but somehow the way we display it in the keyboard layout (and
> > in the "C-u C-x =" display under "decomposition") behaves differently.
> > Why is that?
> 
> As that character is a non-spacing modifier, we display it
> with a static composition, and a glyph in a static
> composition are displayed by a blank rectangle if no font is
> available.  This is because a hex code makes the resulting
> display of composition (several glyphs may occupy a single
> column) unreadable.
> 
> It may be possible to change the current code to use a hex
> code displaying if a composition contains just one glyph and
> that glyph has no font, but it may be for 24.2.

So this bug will wait for after Emacs 24.1 release to be fixed.

Thanks.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Kangas <stefan <at> marxist.se>
Cc: 11072-done <at> debbugs.gnu.org, handa <at> m17n.org
Subject: Re: bug#11072: Display of glyphless non-spacing modifiers via a
 static composition
Date: Thu, 31 Oct 2019 16:13:34 +0200

> From: Stefan Kangas <stefan <at> marxist.se>
> Cc: Kenichi Handa <handa <at> m17n.org>,  11072 <at> debbugs.gnu.org
> Date: Thu, 31 Oct 2019 00:13:16 +0100
> 
> >> As that character is a non-spacing modifier, we display it
> >> with a static composition, and a glyph in a static
> >> composition are displayed by a blank rectangle if no font is
> >> available.  This is because a hex code makes the resulting
> >> display of composition (several glyphs may occupy a single
> >> column) unreadable.
> >> 
> >> It may be possible to change the current code to use a hex
> >> code displaying if a composition contains just one glyph and
> >> that glyph has no font, but it may be for 24.2.
> >
> > So this bug will wait for after Emacs 24.1 release to be fixed.
> >
> > Thanks.
> 
> Hi Eli,
> 
> No update on this bug in 7 years.  Has this been fixed in the
> intervening time?

It seems so: I now see a box with a hex code.

Closing.

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