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bug#4895: 23.1; Incorrect font selected
From: |
Eli Zaretskii |
Subject: |
bug#4895: 23.1; Incorrect font selected |
Date: |
Mon, 09 Jul 2012 19:41:20 +0300 |
> From: Chong Yidong <cyd@gnu.org>
> Date: Mon, 09 Jul 2012 13:26:55 +0800
> Cc: 4895@debbugs.gnu.org, cmr.pent@gmail.com, Kenichi Handa <handa@m17n.org>
>
> Also, where in the code does this
>
> >> when you read a file with cp1251, the charset property
> >> `cp1251' is put on the buffer text. Thus the font-selector
> >> prefers a font whose registry is "microsoft-cp1251".
>
> occur?
decode_coding calls produce_annotation that calls produce_charset,
which puts the 'charset' text property on the decoded text.
Then font_for_char uses this property to get the charset ID with which
it calls fontset_font, which in turn calls fontset_find_font, which
prefers fonts whose repertory matches that ID.
> I took a quick look at the documentation, e.g. the docstring of
> new-fontset, and couldn't find the explanation of how the
> font-selector chooses the font to use from the list of font
> specifications. If the list of font specifications is not given in
> order of priority, that should be clearly explained somewhere.
The documentation of fontset stuff could use a lot of improvement.