[Fontconfig] Re: How to disable the "global advance" for CJK fonts?

Xie Qian xieqian02 at iscas.cn
Thu Jun 30 17:29:09 EST 2005

Hi there,

Just trying to clear my confusion. In original mail, the modification of
fonts.conf shows an edit clause on "globaladvance" with  binding="strong". I
don't know what effect will the strong-binding bring. I dug source codes of
fontconfig some time ago, AFAIK, strong-binding only make family name
priorer than lang. Is things changed a lot?

Thanks for any hint.

Xie Qian

Open System and Chinese Information Processing Center,
Institute of Software, Chinese Academy of Sciences,
P.O. Box 8718, Beijing 100080, CHINA

----- Original Message -----
From: "Mike FABIAN" <mfabian at suse.de>
To: "Ambrose Li" <acli at ada.dhs.org>
Cc: "Keith Packard" <keithp at keithp.com>; <fontconfig at fontconfig.org>
Sent: Wednesday, June 29, 2005 9:58 PM
Subject: [Fontconfig] Re: How to disable the "global advance" for CJK fonts?

> Ambrose Li <acli at ada.dhs.org> さんは書きました:
> > Some time ago, iirc, someone else proposed on this list that global
> > advance be turned off by default for all CJK fonts; from what I
> > observe that would be an entirely reasonable thing, and I'd like to
> > know any technical reason why that should not be the case.
> Currently I use the following workaround, which seems to work OK:
> <!--
>   The dual-width Asian fonts (spacing=dual) are not rendered correctly,
>   apparently FreeType forces all widths to match. Trying to disable the
>   width forcing code by setting globaladvance=false alone doesn't  help.
>   As a brute force workaround, also set spacing=proportional, i.e. handle
>   them as proportional fonts:
> -->
>         <match target="font">
>                 <test name="lang" compare="contains">
>                         <string>ja</string>
>                         <string>zh</string>
>                         <string>ko</string>
>                 </test>
>                 <test name="spacing" compare="eq">
>                         <const>dual</const>
>                 </test>
>                 <edit name="spacing">
>                         <const>proportional</const>
>                 </edit>
>                 <edit name="globaladvance" binding="strong">
>                         <bool>false</bool>
>                 </edit>
>         </match>
> --
> Mike FABIAN   <mfabian at suse.de>   http://www.suse.de/~mfabian
> 睡眠不足はいい仕事の敵だ。
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> fontconfig at lists.freedesktop.org
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