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Re: set-fontset-font is slow if the fontset is specified by a long name
From: |
Kenichi Handa |
Subject: |
Re: set-fontset-font is slow if the fontset is specified by a long name |
Date: |
Mon, 25 Oct 2004 16:25:16 +0900 (JST) |
User-agent: |
SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.2 Emacs/21.3 (sparc-sun-solaris2.6) MULE/5.0 (SAKAKI) |
In article <address@hidden>, YAMAMOTO Mitsuharu <address@hidden> writes:
>>>>>> 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?
Such a change may make what matches with NAME different from
the current code (though only in vary rare case such as you
have a fontset
"-adove-courier-*-*-*-*-*-*-*-*-*-*-fontset-default").
> 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))
Isn't the latest code fast enough?
---
Ken'ichi HANDA
address@hidden
- set-fontset-font is slow if the fontset is specified by a long name, YAMAMOTO Mitsuharu, 2004/10/24
- Re: set-fontset-font is slow if the fontset is specified by a long name, Kenichi Handa, 2004/10/24
- Re: set-fontset-font is slow if the fontset is specified by a long name, YAMAMOTO Mitsuharu, 2004/10/24
- Re: set-fontset-font is slow if the fontset is specified by a long name,
Kenichi Handa <=
- Re: set-fontset-font is slow if the fontset is specified by a long name, YAMAMOTO Mitsuharu, 2004/10/25
- Re: set-fontset-font is slow if the fontset is specified by a long name, Kenichi Handa, 2004/10/25
- Re: set-fontset-font is slow if the fontset is specified by a long name, Richard Stallman, 2004/10/26
- Re: set-fontset-font is slow if the fontset is specified by a long name, Kenichi Handa, 2004/10/27
- Re: set-fontset-font is slow if the fontset is specified by a long name, Richard Stallman, 2004/10/29
- Re: set-fontset-font is slow if the fontset is specified by a long name, Kenichi Handa, 2004/10/29
- Re: set-fontset-font is slow if the fontset is specified by a long name, Richard Stallman, 2004/10/30