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font selection confusion
From: |
Miles Bader |
Subject: |
font selection confusion |
Date: |
Wed, 04 Mar 2009 14:19:38 +0900 |
GNU Emacs 23.0.91.8 (x86_64-unknown-linux-gnu, GTK+ Version 2.14.7) of
2009-03-04 on dhlpc061
I'm kind of confused how emacs chooses alternative fonts to display
funny characters.
For instance, try this:
(1) Start "HOME=/tmp emacs -Q"
(2) Insert this string in *scratch*: ❦⋮
(those two characters are \u2766, "FLORAL HEART", and \u22ee,
"VERTICAL ELLIPSIS")
(3) On my system, which is debian unstable, the default font used is
"Dejuavu Sans Mono"; using that font, the "FLORAL HEART" can be
displayed using the default font, and "VERTICAL ELLIPSIS" is
displayed using a different font,
"-mutt-clearlyu-medium-r-normal--17-120-100-100-p-123-iso10646-1"
(4) Now, I use the "Options > Set Default Font" menu to change the
default font to "Liberation Mono" (this is a commonly installed
free font, but any font with poor coverage of funny characters
will seems to give the same result...).
(5) Liberation Mono does not have either of those characters, but what
happens is: the "FLORAL HEART" character is now displayed as an
empty box, but the "VERTICAL ELLIPSIS" character continues to be
displayed using the "mutt-clearlyu" font.
Shouldn't emacs continue to use Dejavu Sans Mono to display "FLORAL
HEART", given that the font clearly contains it, and emacs clearly knows
(well, knew) that fact?
Thanks,
-Miles
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