Re: set-fontset-font is slow if the fontset is specified by a long name

[YAMAMOTO Mitsuharu]

>>>>> On Mon, 25 Oct 2004 11:01:07 +0900 (JST), Kenichi Handa <address@hidden> 
>>>>> said:

> set-fontset-font converts NAME into a regular expression while
> converting every '*' into '.*'.  So, the above slowness is because
> of this regular-expression processing is slow.

> (string-match "-.*-.*-.*-.*-.*-.*-.*-.*-.*-.*-.*-.*-fontset-default"
> "-*-*-*-*-*-*-*-*-*-*-*-*-fontset-default"))

> I fixed the code so that convert '*' to "[^-]*" if full XLFD is
> given.  This speedups the second example, but still the first one is
> faster because it's registered in fontset-alias-alist.

How about consulting Vfontset_table literally before doing regexp
matches?

The scenario I'm considering is something like the following:

  (let ((fontset (create-fontset-from-ascii-font "7x14")))
    (while ...
     (set-fontset-font fontset ...)
     ...)
    (set-frame-font fontset))

                                     YAMAMOTO Mitsuharu
                                address@hidden