bug#656: Glyphs in Private Use Area not displayed in Emacs CVS

bug#656: Glyphs in Private Use Area not displayed in Emacs CVS

[Alex Speed Kjeldsen]

Yesterday I compiled emacs from CVS by doing:

  cvs -z3 -d:pserver:anonymous@cvs.savannah.gnu.org:/sources/emacs co emacs
  ./configure --prefix=/opt/emacs-cvs --program-suffix=.em23 --with-x-toolkit --enable-font-backend --with-xft

It seems to work ok with one for me very important exception: glyphs in the Private Use Area are not rendered correctly. They simply appear as empty boxes in the buffers. This bug seems to have been around for quite some time (introduced somewhere between December and February, I think -- judging from the ubuntu packages maintained by Alexandre Vassalotti).

I hope this can be fixed soon, since it is crucial for my work. I use a lot of glyphs from the PUA in my research (Old Norse Philology).

Best regards

Alex Speed Kjeldsen
Copenhagen University

bug#656: Glyphs in Private Use Area not displayed in Emacs CVS

[Jason Rumney]

Alex Speed Kjeldsen wrote:
> It seems to work ok with one for me very important exception: glyphs in the Private Use Area are not rendered correctly. They simply appear as empty boxes in the buffers. This bug seems to have been around for quite some time (introduced somewhere between December and February, I think -- judging from the ubuntu packages maintained by Alexandre Vassalotti).
>   

What code do you have in your .emacs relating to display of those 
characters?

bug#656: Glyphs in Private Use Area not displayed in Emacs CVS

[Alex Speed Kjeldsen]

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Sorry for not replying before!

I have no special code in the .emacs file apart from the specification of
which font to use. Today on a fresh arch GNU/linux install where I installed
the package "emacs-cvs" (23.0.60) and didn't have an .emacs file, the
problem was still there, when I started emacs this way:

      emacs --font
"FONT_WHICH_INCLUDES_THE_GLYPHS_AND_WORKS_IN_DEC_2007_VERSION-FONTSIZE"

The glyphs in PUA just show up as boxes

Best regards
Alex


On Sun, Aug 17, 2008 at 2:10 PM, Jason Rumney <jasonr@gnu.org> wrote:

> Alex Speed Kjeldsen wrote:
>
>> It seems to work ok with one for me very important exception: glyphs in
>> the Private Use Area are not rendered correctly. They simply appear as empty
>> boxes in the buffers. This bug seems to have been around for quite some time
>> (introduced somewhere between December and February, I think -- judging from
>> the ubuntu packages maintained by Alexandre Vassalotti).
>>
>>
>
> What code do you have in your .emacs relating to display of those
> characters?
>
>
>

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bug#656: Glyphs in Private Use Area not displayed in Emacs CVS

[Jason Rumney]

Alex Speed Kjeldsen wrote:
> I have no special code in the .emacs file apart from the specification 
> of which font to use. Today on a fresh arch GNU/linux install where I 
> installed the package "emacs-cvs" (23.0.60) and didn't have an .emacs 
> file, the problem was still there, when I started emacs this way:
>
>       emacs --font 
> "FONT_WHICH_INCLUDES_THE_GLYPHS_AND_WORKS_IN_DEC_2007_VERSION-FONTSIZE"
>
> The glyphs in PUA just show up as boxes

Looking at what you wrote above again, I think the problem is that Emacs 
now looks in greater detail at which unicode characters fonts have, 
rather than blindly using any iso10646-1 font for all unicode 
characters. For characters in PUA you will need to explicitly tell Emacs 
how to display them as follows, since Emacs cannot automatically 
recognize which fonts contain the characters you want:

(set-fontset-font "fontset-default"  '(#xe000 . #xf8ff) FONT-SPEC)

bug#656: marked as done (Glyphs in Private Use Area not displayed in Emacs CVS)

[Emacs bug Tracking System]

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Your message dated Tue, 24 Feb 2009 21:44:03 +0800
with message-id <49A3F9A3.5090304@gnu.org>
and subject line Re: bug#656: Glyphs in Private Use Area not displayed in Emacs CVS
has caused the Emacs bug report #656,
regarding Glyphs in Private Use Area not displayed in Emacs CVS
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@emacsbugs.donarmstrong.com
immediately.)


-- 
656: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=656
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems

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From: Alex Speed Kjeldsen <alex.kjeldsen@gmail.com>
To: bug-gnu-emacs@gnu.org
Subject: Glyphs in Private Use Area not displayed in Emacs CVS
Date: Wed, 6 Aug 2008 09:19:38 +0200
Message-ID: <20080806091938.5b196562@ask-804>

Yesterday I compiled emacs from CVS by doing:

  cvs -z3 -d:pserver:anonymous@cvs.savannah.gnu.org:/sources/emacs co emacs
  ./configure --prefix=/opt/emacs-cvs --program-suffix=.em23 --with-x-toolkit --enable-font-backend --with-xft

It seems to work ok with one for me very important exception: glyphs in the Private Use Area are not rendered correctly. They simply appear as empty boxes in the buffers. This bug seems to have been around for quite some time (introduced somewhere between December and February, I think -- judging from the ubuntu packages maintained by Alexandre Vassalotti).

I hope this can be fixed soon, since it is crucial for my work. I use a lot of glyphs from the PUA in my research (Old Norse Philology).

Best regards

Alex Speed Kjeldsen
Copenhagen University




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From: Jason Rumney <jasonr@gnu.org>
To: 656-done@emacsbugs.donarmstrong.com
Cc: Alex Speed Kjeldsen <alex.kjeldsen@gmail.com>
Subject: Re: bug#656: Glyphs in Private Use Area not displayed in Emacs CVS
Date: Tue, 24 Feb 2009 21:44:03 +0800
Message-ID: <49A3F9A3.5090304@gnu.org>

Jason Rumney wrote:
> Looking at what you wrote above again, I think the problem is that 
> Emacs now looks in greater detail at which unicode characters fonts 
> have, rather than blindly using any iso10646-1 font for all unicode 
> characters. For characters in PUA you will need to explicitly tell 
> Emacs how to display them as follows, since Emacs cannot automatically 
> recognize which fonts contain the characters you want:
>
> (set-fontset-font "fontset-default"  '(#xe000 . #xf8ff) FONT-SPEC)

I have improved the documentation for fontsets, including adding several 
examples of the use of set-fontset-font, which seems to be the preferred 
way of specifying fonts for particular characters in Emacs 23.