Re: `set-frame-font' doesn't support font aliases

[Stefan Monnier]

>> 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'?  If so, I think it's OK.


        Stefan