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bug#11450: 24.1.50; NS regression: fallback font used even when glyph av
From: |
Steve Purcell |
Subject: |
bug#11450: 24.1.50; NS regression: fallback font used even when glyph available in primary font |
Date: |
Fri, 11 May 2012 13:45:28 +0100 |
Starting a few months ago, I've observed a regression in Emacs HEAD
relative to Emacs 23.3.1.
Steps to reproduce:
===============
* Open Emacs HEAD on OS X
* In *scratch*, evaluate:
(set-face-attribute 'default nil :foundry "apple" :family "Menlo" :height 120)
* Then use "M-x ucs-insert" to insert the "EMPTY SET" char (∅)
* Use "M-x describe-char" to inspect the properties of the displayed character
Expected results:
==============
This char is available in the Menlo font, so the expected results are as
for Emacs 23.3:
character: ∅ (8709, #o21005, #x2205)
preferred charset: unicode (Unicode (ISO10646))
code point: 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-Menlo-medium-normal-normal-*-12-*-*-*-m-0-iso10646-1 (#x7B4)
Character code properties: customize what to show
name: EMPTY SET
general-category: Sm (Symbol, Math)
Actual results:
===========
Instead, Emacs HEAD now displays the character from a fallback font,
STIXGeneral:
position: 275 of 275 (100%), 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-STIXGeneral-medium-normal-normal-*-14-*-*-*-p-0-iso10646-1
(#x41C)
Character code properties: customize what to show
name: EMPTY SET
general-category: Sm (Symbol, Math)
decomposition: (8709) ('∅')
In GNU Emacs 24.1.50.2 (i386-apple-darwin11.3.0, NS apple-appkit-1138.32)
of 2012-05-10 on mandala.home.gateway
Windowing system distributor `Apple', version 10.3.1138
Configured using:
`configure '--with-ns' '--without-dbus' '--without-x' 'CFLAGS=3D-g''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: en_US.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
value of $XMODIFIERS: nil
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Lisp Interaction
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
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:
<up> <up> <right> <right> <right> M-x d e s c - c a=20
h <backspace> <backspace> h a r <tab> <return> <help-echo>=20
<help-echo> <down-mouse-1> <mouse-1> M-x u c s - i=20
n <tab> <return> e m p t y SPC s e t <tab> <return>=20
<left> M-x d e s c - c h a r <return> <up> <return>=20
<return> <up> C-y C-x C-e <down> <down> <right> <left>=20
M-x d e s c - c h a r <return> C-x 5 2 M-x e m a c=20
s - b <tab> <s-backspace> <M-backspace> <M-backspace>=20
<M-backspace> r e p <tab> <M-backspace> <M-backspace>=20
r e p o r <tab> <return>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Type C-x 1 to delete the help window, C-M-v to scroll help.
You can run the command `ucs-insert' with C-x 8 RET
Mark set
nil
Load-path shadows:
None found.
Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils pp wid-edit descr-text help-mode easymenu view
time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel ns-win
tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment
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)
- bug#11450: 24.1.50; NS regression: fallback font used even when glyph available in primary font,
Steve Purcell <=