GNU bug report logs - #10901
24.0.94; Incorrect display of "EMPTY SET" unicode glyph.

Previous Next

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 10901 in the body.
You can then email your comments to 10901 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Felix Geller <fgeller <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.94; Incorrect display of "EMPTY SET" unicode glyph.
Date: Mon, 27 Feb 2012 12:49:00 +0100

emacs -Q
M-x ucs-insert empty set RET

The displayed character is not an empty set symbol, but a square
symbol. This used to work fine until I updated to the 24.0.94 pretest
this morning. Please let me know where to post a screenshot.





In GNU Emacs 24.0.94.1 (x86_64-apple-darwin11.2.0, NS apple-appkit-1138.23)
 of 2012-02-27 on Ryo.local
Windowing system distributor `Apple', version 10.3.1138
Configured using:
 `configure '--prefix=/usr/local/Cellar/emacs/24.0.94' '--without-dbus'
 '--enable-locallisppath=/usr/local/share/emacs/site-lisp'
 '--infodir=/Users/fgeller/.emacs.d/info' '--with-ns'
 '--disable-ns-self-contained' 'CC=/usr/bin/llvm-gcc' 'CFLAGS=-O3 -w
 -pipe -march=core2 -msse4''

Important settings:
  value of $LC_ALL: en_US.UTF-8
  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: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x u c s - i n s e r t <return> e m p t u y <backspace> 
<backspace> y - <backspace> SPC s e t <return> M-x 
e m a c s - b u <tab> <M-backspace> <M-backspace> r 
e p p o <tab> <backspace> <backspace> <tab> o <tab> 
r t - e m <tab> <tab> - q <tab> <return> u n i c o 
d e SPC p r e t e s t <return> <down> <down> <down> 
<down> <return> <right> <right> <right> <right> <right> 
<right> <right> <right> <right> <right> <right> <left> 
<return> M-x r e p o t - e m a c s - b u <tab> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
r t <backspace> <backspace> o r t - e m <tab> <ret
urn>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
You can run the command `ucs-insert' with C-x 8 RET
Making completion list... [3 times]
Contacting host: debbugs.gnu.org:80
Reporting new bug! [2 times]

Load-path shadows:
None found.

Features:
(shadow sort mail-extr wid-edit network-stream starttls url-cache
url-http tls url-gw url-auth url url-proxy url-privacy url-expand
url-methods url-history url-cookie url-util url-parse auth-source eieio
byte-opt bytecomp byte-compile cconv macroexp assoc gnus-util
password-cache url-vars mailcap emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail regexp-opt rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils help-mode easymenu view time-date tooltip
ediff-hook vc-hooks lisp-float-type mwheel ns-win tool-bar dnd fontset
image fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev minibuffer loaddefs button faces cus-face files text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process ns multi-tty
emacs)

Message #8 received at 10901 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Felix Geller <fgeller <at> gmail.com>
Cc: 10901 <at> debbugs.gnu.org
Subject: Re: bug#10901: 24.0.94;
	Incorrect display of "EMPTY SET" unicode glyph.
Date: Mon, 27 Feb 2012 22:32:21 +0200

> From: Felix Geller <fgeller <at> gmail.com>
> Date: Mon, 27 Feb 2012 12:49:00 +0100
> 
> emacs -Q
> M-x ucs-insert empty set RET
> 
> The displayed character is not an empty set symbol, but a square
> symbol.

What does Emacs say if you go to the square symbol and type "C-u C-x ="?

> This used to work fine until I updated to the 24.0.94 pretest this
> morning. Please let me know where to post a screenshot.

I get the empty symbol in the 24.0.94 pretest, so it's something
specific to your system.  Maybe a font setup issue or something.

Message #11 received at 10901 <at> debbugs.gnu.org (full text, mbox):

From: Felix Geller <fgeller <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 10901 <at> debbugs.gnu.org
Subject: Re: bug#10901: 24.0.94;
	Incorrect display of "EMPTY SET" unicode glyph.
Date: Wed, 29 Feb 2012 10:26:09 +0100

On Mon, Feb 27, 2012 at 9:32 PM, Eli Zaretskii <eliz <at> gnu.org> wrote:
>> From: Felix Geller <fgeller <at> gmail.com>
>> Date: Mon, 27 Feb 2012 12:49:00 +0100
>>
>> emacs -Q
>> M-x ucs-insert empty set RET
>>
>> The displayed character is not an empty set symbol, but a square
>> symbol.
>
> What does Emacs say if you go to the square symbol and type "C-u C-x ="?

(copied from *Help* buffer)

             position: 192 of 192 (99%), column: 0
            character: ∅ (displayed as ∅) (codepoint 8709, #o21005, #x2205)
    preferred charset: unicode (Unicode (ISO10646))
code point in charset: 0x2205
               syntax: . 	which means: punctuation
             category: .:Base, j:Japanese
          buffer code: #xE2 #x88 #x85
            file code: #xE2 #x88 #x85 (encoded by coding system utf-8-unix)
              display: by this font (glyph code)
    nil:-apple-AppleMyungjo-medium-normal-normal-*-12-*-*-*-p-0-iso10646-1
(#x00)

Character code properties: customize what to show
  name: EMPTY SET
  general-category: Sm (Symbol, Math)
  decomposition: (8709) ('∅')

There are text properties here:
  fontified            t



>> This used to work fine until I updated to the 24.0.94 pretest this
>> morning. Please let me know where to post a screenshot.
>
> I get the empty symbol in the 24.0.94 pretest, so it's something
> specific to your system.  Maybe a font setup issue or something.

Looks like the font name (AppleMyungjo) is off? (The above output is
after using emacs -Q).

Hope can I (help to) investigate further?

Message #14 received at 10901 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Felix Geller <fgeller <at> gmail.com>
Cc: 10901 <at> debbugs.gnu.org
Subject: Re: bug#10901: 24.0.94;
	Incorrect display of "EMPTY SET" unicode glyph.
Date: Wed, 29 Feb 2012 19:30:29 +0200

> From: Felix Geller <fgeller <at> gmail.com>
> Date: Wed, 29 Feb 2012 10:26:09 +0100
> Cc: 10901 <at> debbugs.gnu.org
> 
> >> M-x ucs-insert empty set RET
> >>
> >> The displayed character is not an empty set symbol, but a square
> >> symbol.
> >
> > What does Emacs say if you go to the square symbol and type "C-u C-x ="?
> 
> (copied from *Help* buffer)
> 
>              position: 192 of 192 (99%), column: 0
>             character: ∅ (displayed as ∅) (codepoint 8709, #o21005, #x2205)
>     preferred charset: unicode (Unicode (ISO10646))
> code point in charset: 0x2205
>                syntax: . 	which means: punctuation
>              category: .:Base, j:Japanese
>           buffer code: #xE2 #x88 #x85
>             file code: #xE2 #x88 #x85 (encoded by coding system utf-8-unix)
>               display: by this font (glyph code)
>     nil:-apple-AppleMyungjo-medium-normal-normal-*-12-*-*-*-p-0-iso10646-1
> (#x00)
> 
> Character code properties: customize what to show
>   name: EMPTY SET
>   general-category: Sm (Symbol, Math)
>   decomposition: (8709) ('∅')

So it inserts the correct character, but your font cannot display that
character.

> > I get the empty symbol in the 24.0.94 pretest, so it's something
> > specific to your system.  Maybe a font setup issue or something.
> 
> Looks like the font name (AppleMyungjo) is off?

Yes.

> Hope can I (help to) investigate further?

Sorry, I don't know.  Someone who knows more about fonts should chime
in.

In any case, I think this bug should be closed and the discussion
moved to help-gnu-emacs or emacs-devel.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.