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Re: `set-frame-font' doesn't support font aliases
From: |
Kenichi Handa |
Subject: |
Re: `set-frame-font' doesn't support font aliases |
Date: |
Tue, 03 Jun 2008 16:44:14 +0900 |
User-agent: |
SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.2 Emacs/23.0.60 (i686-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) |
In article <address@hidden>, Stefan Monnier <address@hidden> writes:
>>> The current code for `set-frame-font' doesn't support font
>>> aliases - for example, these sexps don't work:
>>> (set-frame-font "5x7") ;; error: "Font `5x7' is not defined"
>>> (set-frame-font "fixed") ;; uses some unexpected font
> > I've just installed a fix to check also an alias name in X
> > font-backend. But, as Emacs accepts a fontconfig-style font
> > name too, for instance, "fixed" is parsed as a font of
> > family "fixed" which may match with many fonts.
> > Is keeping backward compatibility of (set-frame-font
> > "fixed") important enough to drop the support of
> > fontconfig-style name?
> Can you recover the Emacs-22 behavior by restricting the backends to
> just `x'?
No, because the font-name parser is independent of font
backends; i.e. even if you use only x font-backend, you can
specify a font name as, for instance,
"fixed-12:foundry=misc".
It is possible to implement a new method
`resolve_alias_name' for a font-backend, and add a new
function font-resolve-alias-name.
Then one can do:
(set-frame-font (font-resolve-alias-name "fixed")).
Another idea is to do:
(set-frame-font (font-spec :alias "fixed)).
or
(set-frame-font ":alias=fixed")
---
Kenichi Handa
address@hidden