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DejaVu vs. Lucida and `slant' face attribute
From: |
Giorgos Keramidas |
Subject: |
DejaVu vs. Lucida and `slant' face attribute |
Date: |
Fri, 7 Mar 2008 20:44:26 +0200 |
Hi everyone,
I recently updated my Emacs installation to a CVS snapshot which
includes the new Xft backend code. Things look great, and I'm quite
happy about the ability to use scalable monospaced fonts in my X11 based
Emacs sessions.
I noticed something odd, however. A difference in the handling of the
`DejaVu Sans Mono' and `Lucida Sans Typewriter' fonts.
After setting the following X11 resources:
Emacs.FontBackend: xft
Emacs*font: DejaVu Sans Mono:size=12
Emacs correctly uses `DejaVu Sans Mono:style=Oblique' for displaying
slanted text in Gnus article buffers, i.e. for text with the
`gnus-cite-attribution' face property.
When I fire up the same Emacs build with:
emacs -fn 'Lucida Sans Typewriter'
The same text is not slanted, italic or oblique.
The two fonts seem to have `Oblique' and `Bold Oblique' styles, when I
try to list them with fc-list(1):
address@hidden:/home/keramida$ fc-list 'Lucida Sans Typewriter'
Lucida Sans Typewriter:style=Bold
Lucida Sans Typewriter:style=Oblique
Lucida Sans Typewriter:style=Regular
Lucida Sans Typewriter:style=Bold Oblique
address@hidden:/home/keramida$ fc-list 'DejaVu Sans Mono'
DejaVu Sans Mono:style=Bold Oblique
DejaVu Sans Mono:style=Oblique
DejaVu Sans Mono:style=Book
DejaVu Sans Mono:style=Bold
address@hidden:/home/keramida$
Any hints or help about troubleshooting why Emacs doesn't use the
`Lucida Sans Typewriter:style=Oblique' font for text with a face whose
`Slant' is `italic'?
When I use `C-u C-x =' on gnus-cite-attribution text, the output with
the Lucida font is:
% character: F (70, #o106, #x46)
% preferred charset: ascii (ASCII (ISO646 IRV))
% code point: 0x46
% syntax: w which means: word
% category: a:ASCII graphic characters 32-126 (ISO646 IRV:1983[4/0])
% l:Latin r:Japanese roman
% buffer code: #x46
% file code: not encodable by coding system windows-1252-unix
% display: by this font (glyph code)
% lucida sans
typewriter:pixelsize=12:foundry=b&h:weight=regular:slant=roman:width=normal
(#x29)
%
% Character code properties are not shown: customize what to show
%
% There are 2 overlays here:
% From 240 to 299
% evaporate t
% face gnus-cite-1
% From 240 to 299
% evaporate t
% face gnus-cite-attribution
%
%
% There are text properties here:
% auto-composed t
% charset windows-1252
%
When I use DejaVu Sans Mono, the same text shows the following output
with `C-u C-x =':
% character: O (79, #o117, #x4f)
% preferred charset: ascii (ASCII (ISO646 IRV))
% code point: 0x4F
% syntax: w which means: word
% category: a:ASCII graphic characters 32-126 (ISO646 IRV:1983[4/0])
% l:Latin r:Japanese roman
% buffer code: #x4F
% file code: not encodable by coding system windows-1252-unix
% display: by this font (glyph code)
% dejavu sans
mono:pixelsize=12:foundry=unknown:weight=regular:slant=o:width=normal (#x32)
%
% Character code properties are not shown: customize what to show
%
% There are 2 overlays here:
% From 240 to 299
% evaporate t
% face gnus-cite-1
% From 240 to 299
% evaporate t
% face gnus-cite-attribution
%
%
% There are text properties here:
% auto-composed t
% charset windows-1252
I'm not sure why Emacs picks `slant=roman' in the case of the Lucida
font, so any help in tracking down more details is quite welcome :-)
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