bug#1096: The Emacs 23 cann't display the cjk extb characters again.

bug#1096: The Emacs 23 cann't display the cjk extb characters again.

[hongyi.zhao]

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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@gmail.com> 
Xinjiang Technical Institute of Physics and Chemistry
Chinese Academy of Sciences 
GnuPG DSA: 0xD108493
2008-10-5

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uni20021 𠀡

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bug#1096: The Emacs 23 cann't display the cjk extb characters again.

[Chong Yidong]

Hi Handa-san,

Could you take a look at this bug report?  Thanks.

hongyi.zhao@gmail.com wrote:

> I cnn'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,
> 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")))

bug#1096: The Emacs 23 cann't display the cjk extb characters again.

[Kenichi Handa]

In article <87abb428hw.fsf@cyd.mit.edu>, Chong Yidong <cyd@stupidchicken.com> writes:

> Hi Handa-san,
> Could you take a look at this bug report?  Thanks.

> hongyi.zhao@gmail.com wrote:

> > I cnn'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,
> > 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")))

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.

---
Kenichi Handa
handa@m17n.org

bug#1096: The Emacs 23 cann't display the cjk extb characters again.

[jasonr]

Quoting Kenichi Handa <handa@m17n.org>:

> > hongyi.zhao@gmail.com wrote:

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

At least part of the problem here is that the font name contains a -, which is
not compatible with the use of xlfd as the internal representation of fonts.

bug#1096: The Emacs 23 cann't display the cjk extb characters again.

[Kenichi Handa]

In article <1228891412.493f651496a3e@webmail.freedom2surf.net>, jasonr@f2s.com writes:

> Quoting Kenichi Handa <handa@m17n.org>:
> > > hongyi.zhao@gmail.com wrote:

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

> At least part of the problem here is that the font name contains a -, which is
> not compatible with the use of xlfd as the internal representation of fonts.

That is why I suggested as above; i.e. prepend "*-" to the
family name so that the parser knows that foundry is nil and
the remaining part is a family name.

By the way, the above notation is kept for backward
compatibility (and also for handy way).   The cleaner code
is:

(set-fontset-font
 (frame-parameter nil 'font)
 '(#x20000 . #x2fa1d)
 (font-spec :family "*-Sun-ExtB" :registry "unicode-sip"))

because we are now using font-{spec|entity|object} as the
internal representation of fonts.

---
Kenichi Handa
handa@m17n.org