GNU bug report logs - #1096
The Emacs 23 cann't display the cjk extb characters again.

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Jason Rumney <jasonr <at> f2s.com>
Subject: bug#1096: marked as done (The Emacs 23 cann't display the cjk 
 extb characters again.)

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Your message dated Thu, 11 Dec 2008 21:14:00 +0800
with message-id <49411218.8060106 <at> f2s.com>
and subject line Re: bug#1096: The Emacs 23 cann't display the cjk extb characters again.
has caused the Emacs bug report #1096,
regarding The Emacs 23 cann't display the cjk extb characters again.
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.

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-- 
1096: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=1096
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: hongyi.zhao <at> gmail.com
To: emacs-pretest-bug <at> gnu.org
Subject: The Emacs 23 cann't display the cjk extb characters again.
Date: Mon, 6 Oct 2008 10:25:47 +0800

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Dear all,

Now, I updated the Emacs 23 to 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-10-03 on LENNART-69DE564, then I find that I cann't see the correct cjk extb characters displayed by this version.  For example, the Chinese character uni20021, a character of cjk extb, which can be displayed correctly by using the previous versions by LENNART, cann't be displayed correctly now.  In addition, I can display that character on my box with emeditor, denoting that I've the corresponding fonts installed correctly.  Finally, I've use the following settings in my _emacas file which is suggested by Kenichi Handa:

--------------
(if (display-graphic-p)
(set-fontset-font
 (frame-parameter nil 'font)
 '(#x20000 . #x2fa1d)
 '("*-Sun-ExtB" . "unicode-sip")))
--------------

Please find the snapshot of this issue in the attachments. 

Regards,
-- 
Hongyi Zhao <hongyi.zhao <at> gmail.com> 
Xinjiang Technical Institute of Physics and Chemistry
Chinese Academy of Sciences 
GnuPG DSA: 0xD108493
2008-10-5

[uni20021.txt (text/plain, attachment)]

[display_by_emeditor.png (image/png, attachment)]

[display_by_emacs.png (image/png, attachment)]

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From: Jason Rumney <jasonr <at> f2s.com>
To: Kenichi Handa <handa <at> m17n.org>, 1096-done <at> debbugs.gnu.org
Cc: Chong Yidong <cyd <at> stupidchicken.com>, hongyi.zhao <at> gmail.com
Subject: Re: bug#1096: The Emacs 23 cann't display the cjk extb characters
 again.
Date: Thu, 11 Dec 2008 21:14:00 +0800

Kenichi Handa wrote:
> I've just installed a fix.  At least with Xft font backend,
> Emacs should be able to find a proper font for the Unicode
> SIP area (#x20000..#x2FFFF) now.
>   

In addition to that change, which should help with displaying those 
characters by default, it turns out there is a bug in the Windows 
function that we use to encode characters into glyph points when passed 
a surrogate pair. I've worked around it by using an oversized glyph buffer.

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