GNU bug report logs - #2806
23.0.91; characters from unicode-sip coderange not displaying properly on Cocoa-Mac

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Message #5 received at submit <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Wittern <cwittern <at> gmail.com>
To: emacs-pretest-bug <at> gnu.org
Subject: 23.0.91; characters from unicode-sip coderange not displaying properly
 on Cocoa-Mac
Date: Sat, 28 Mar 2009 07:51:59 +0900

Characters from the unicode-sip coderange (in this case, CJK Ext-B and
Ext-C) do not display properly on a Macintosh OS X system. I am using the
nightly builds available from
http://atomized.org/wp-content/cocoa-emacs-nightly/.
The phenomen observed is as follows: The area occupied by the character is
larger than usual, more than double the width. Sometimes a random character
disappears in part of this area, but mostly it is the color of the
background. When the cursor moves over this area, the character displayed
changes, but again is not the character that should be displayed.  The
necessary fonts are installed and display properly in other applications.
The font is set as follows:

(if (display-graphic-p)
(set-fontset-font
 (frame-parameter nil 'font)
 '(#x20000 . #x2a6ff)
 '("*-Sun-ExtB" . "unicode-sip")))

;; Ext-C
(if (display-graphic-p)
(set-fontset-font
 (frame-parameter nil 'font)
 '(#x2A700 . #x2b7ff)
 '("*-HanaMin" . "unicode-sip")))

;; Display the Unicode-BMP:
(if (display-graphic-p)
(set-fontset-font
(frame-parameter nil 'font)
   '(#x0000 . #xffff)
   '("*-Sun-ExtA" . "unicode-bmp")))

A fix for this problem would be much appreciated



In GNU Emacs 23.0.91.1 (i386-apple-darwin9.6.0, NS apple-appkit-949.43)
 of 2009-03-25 on neutron.local
Windowing system distributor `Apple', version 10.3.949
configured using `configure  '--with-ns''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: UTF-8
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Text

Minor modes in effect:
  shell-dirtrack-mode: t
  delete-selection-mode: t
  pc-selection-mode: t
  global-auto-revert-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> C-x C-f e m <tab> <return> s M-< <down>
<down> <down> <down> <return> M-x C-g <down> <up> <up>
<S-down> <S-down> <S-down> <S-down> <S-down> <S-down>
<S-down> <S-down> <S-down> <S-down> <S-down> <S-down>
<S-down> <S-down> <up> <up> <up> <up> <up> <up> <up>
<up> C-x C-e <down> <down> <down> <down> <down> <down>
<down> C-x C-e <down> <down> <down> <down> <down> <down>
<down> C-x C-e C-x C-f ~ / D r o p <tab> c o m <tab>
i <tab> <backspace> c h <tab> <return> <down> <down>
<down> <down> <down> <down> <down> <down> C-x C-f /
/ t m <tab> i d <tab> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> ~ / u n i <tab>
i <backspace> / i <tab> <return> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <up> <up> <up> <up> <return> <down> <right>
<right> <right> <right> <right> <right> <right> <right>
<right> <right> <right> <down> <down> <up> <right>
<right> <right> <left> <left> <down> <down> <down>
<right> <left> <right> <up> <right> <left> <menu-bar>
<help-menu> <send-emacs-bug-report>

Recent messages:
Loading /Users/chris/org/chw-calendar.el (source)...done
Loading /Users/chris/org/chw-org.el (source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Mark set
Loading vc-cvs...done
Quit
line-move-visual: Beginning of buffer
Mark set
nil [3 times]
Making completion list...

-- 
 Christian Wittern
 Institute for Research in Humanities, Kyoto University
 47 Higashiogura-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8265, JAPAN

Message #12 received at 2806 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Christian Wittern <cwittern <at> gmail.com>
To: 2806 <at> debbugs.gnu.org
Subject: characters from unicode-sip coderange still not displaying properly
Date: Tue, 15 Dec 2009 10:04:48 +0900

Hi there,

I just confirmed with the released version 23.1 that this problem is
still existing.  It is very disappointing and keeps all Mac users I
know from upgrading to the otherwise wonderful release 23.  Is there
anything I can do to help getting this issue fixed?

All the best,

Christian

-- 
Christian Wittern, Kyoto

Message #17 received at 2806 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: Christian Wittern <cwittern <at> gmail.com>, 2806 <at> debbugs.gnu.org
Cc: 2806 <at> debbugs.gnu.org
Subject: Re: bug#2806: characters from unicode-sip coderange still not
	displaying properly
Date: Tue, 15 Dec 2009 14:56:37 +0900

[Message part 1 (text/plain, inline)]

In article <5268d87d0912141704k5eb7ae24p777096a93cbbc0d2 <at> mail.gmail.com>, Christian Wittern <cwittern <at> gmail.com> writes:

> I just confirmed with the released version 23.1 that this problem is
> still existing.  It is very disappointing and keeps all Mac users I
> know from upgrading to the otherwise wonderful release 23.  Is there
> anything I can do to help getting this issue fixed?

Emacs supports unicode-sip displaying at least on Unix/Linux
where we can use fontconfig and freetype.  See the attached
image (result of M-x list-charset-chars RET unicode-sip
RET).  Emacs asks a font-backend to get a font whose
registry is "unicode-sip", and fontconfig backend searches
for fonts that support at least U+20000 for such a request.

Perhaps, Mac's font-backend is not doing that.

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

[Message part 3 (text/plain, inline)]

---
Kenichi Handa
handa <at> m17n.org

Message #20 received at 2806 <at> debbugs.gnu.org (full text, mbox):

From: Christian Wittern <cwittern <at> gmail.com>
To: Kenichi Handa <handa <at> m17n.org>
Cc: 2806 <at> debbugs.gnu.org
Subject: Re: bug#2806: characters from unicode-sip coderange still
	not	displaying properly
Date: Tue, 26 Jan 2010 13:31:19 +0900

Thank you Handa-san.  Shortly after sending this message, I found out 
that Yamamoto Mitsuharu-san in Chiba has a patch [1] that provides the 
functionality I needed.  I succeeded in applying this patch and have 
used the resulting Emacs.app for about a month now without any 
problems.  It would surely be great if that patch could be incorporated 
into the Emacs source.
All the best,  Christian

[1] ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-23.1.90-mac-1.95.tar.gz

On 2009-12-15 14:56, Kenichi Handa wrote:
> In article<5268d87d0912141704k5eb7ae24p777096a93cbbc0d2 <at> mail.gmail.com>, Christian Wittern<cwittern <at> gmail.com>  writes:
>
>    
>> I just confirmed with the released version 23.1 that this problem is
>> still existing.  It is very disappointing and keeps all Mac users I
>> know from upgrading to the otherwise wonderful release 23.  Is there
>> anything I can do to help getting this issue fixed?
>>      
> Emacs supports unicode-sip displaying at least on Unix/Linux
> where we can use fontconfig and freetype.  See the attached
> image (result of M-x list-charset-chars RET unicode-sip
> RET).  Emacs asks a font-backend to get a font whose
> registry is "unicode-sip", and fontconfig backend searches
> for fonts that support at least U+20000 for such a request.
>
> Perhaps, Mac's font-backend is not doing that.
>
>    
>
>
>
> ---
> Kenichi Handa
> handa <at> m17n.org
>    


-- 
 Christian Wittern
 Institute for Research in Humanities, Kyoto University
 47 Higashiogura-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8265, JAPAN

Message #23 received at 2806 <at> debbugs.gnu.org (full text, mbox):

From: Kenichi Handa <handa <at> m17n.org>
To: Christian Wittern <cwittern <at> gmail.com>
Cc: 2806 <at> debbugs.gnu.org
Subject: Re: bug#2806: characters from unicode-sip coderange still
	not	displaying properly
Date: Tue, 26 Jan 2010 20:08:13 +0900

In article <4B5E7017.8050505 <at> gmail.com>, Christian Wittern <cwittern <at> gmail.com> writes:

> Thank you Handa-san.  Shortly after sending this message, I found out 
> that Yamamoto Mitsuharu-san in Chiba has a patch [1] that provides the 
> functionality I needed.  I succeeded in applying this patch and have 
> used the resulting Emacs.app for about a month now without any 
> problems.  It would surely be great if that patch could be incorporated 
> into the Emacs source.
> All the best,  Christian

> [1] ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-23.1.90-mac-1.95.tar.gz

I have no knowledge about Mac, and can't find which part of
the above file is necessary for supporting unicode-sip
displaying.

Could someone working on Mac port please DTRT?

---
Kenichi Handa
handa <at> m17n.org

Message #26 received at 2806 <at> debbugs.gnu.org (full text, mbox):

From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
To: Kenichi Handa <handa <at> m17n.org>
Cc: Christian Wittern <cwittern <at> gmail.com>, 2806 <at> debbugs.gnu.org
Subject: Re: bug#2806: characters from unicode-sip coderange
	still	not	displaying properly
Date: Thu, 28 Jan 2010 10:22:29 +0900

>>>>> On Tue, 26 Jan 2010 20:08:13 +0900, Kenichi Handa <handa <at> m17n.org> said:

> In article <4B5E7017.8050505 <at> gmail.com>, Christian Wittern
> <cwittern <at> gmail.com> writes:
>> Thank you Handa-san.  Shortly after sending this message, I found
>> out that Yamamoto Mitsuharu-san in Chiba has a patch [1] that
>> provides the functionality I needed.  I succeeded in applying this
>> patch and have used the resulting Emacs.app for about a month now
>> without any problems.  It would surely be great if that patch could
>> be incorporated into the Emacs source.  All the best, Christian

>> [1]
>> ftp://ftp.math.s.chiba-u.ac.jp/emacs/emacs-23.1.90-mac-1.95.tar.gz

> I have no knowledge about Mac, and can't find which part of the
> above file is necessary for supporting unicode-sip displaying.

> Could someone working on Mac port please DTRT?

Someone working on the NS port, which is supposed to be a first-class
official port, should DTRT.  The Mac port is neither a patch for nor a
distribution on top of the NS port, but a completely independent port
created with a different policy and design.

I didn't do anything special about unicode-sip for the font backend
drivers on the Mac port.  They are created by porting xftfont.c and
ftfont.c straightforwardly, and perhaps that might give a good result
for this matter.

				     YAMAMOTO Mitsuharu
				mituharu <at> math.s.chiba-u.ac.jp

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