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bug#65865: 30.0.50; set-face-attribute doesn't take effect on new frames
From: |
Eli Zaretskii |
Subject: |
bug#65865: 30.0.50; set-face-attribute doesn't take effect on new frames on Android |
Date: |
Mon, 11 Sep 2023 16:38:33 +0300 |
> Date: Mon, 11 Sep 2023 21:10:37 +0900
> From: Shingo Tanaka <shingo.fg8@gmail.com>
>
> (set-face-attribute 'default nil :font "Noto Sans Mono CJK JP") doesn't take
> effect on new frames on Android, even though the 2nd argument FRAME is nil.
>
> Here is how to reproduce.
> Maybe the font doesn't need to be the one I specified here.
>
> 0. Download NotoSansMonoCJKjp-VF.ttf from the url below and put it in ~/fonts
> 1. Run Emacs w/o init file.
> 2. Evaluate (set-face-attribute 'default nil :font "Noto Sans Mono CJK JP")
> on *scratch* buffer.
> 3. You can see the displayed font is updated to Noto font.
> 4. Type C-x 5 2 (make-frame-command)
> 5. You can see the font is not Noto font but the initial font on the new
> frame.
I must say that I'm uncomfortable with this use of script-specific
fonts. These fonts are clearly intended to be used for specific
scripts/languages, not as the default font. Emacs allows, via the
fontset feature, to configure a set of fonts that is optimized for
covering large portions of the Unicode codespace, for exactly this
reason: it is impractical to expect a single font have good support
both for, say, the Japanese script and for other scripts, including
advanced text-shaping features such as ligation etc.
So I really suggest not to use these Noto fonts as the default font,
but instead configure your fontset such that only the Japanese
characters are displayed using this font.