GNU bug report logs - #39339
26.3; set-fontset-font does not replace some glyphs

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From: Eli Zaretskii <eliz <at> gnu.org>
To: ynyaaa <at> gmail.com
Cc: 39339 <at> debbugs.gnu.org
Subject: bug#39339: 26.3; set-fontset-font does not replace some glyphs
Date: Wed, 29 Jan 2020 20:25:21 +0200

> From: ynyaaa <at> gmail.com
> Date: Wed, 29 Jan 2020 12:55:31 +0900
> 
> I installed Noto fonts, and tried to set up fontset composed of
> "Noto Sans Mono" and "Noto Sans Mono CJK JP Regular".
> For some characters "Noto Sans Mono CJK JP Regular" has wide glyphs.
> 
> Evaluating the form below, only characters
>   #x00A7 #x00B1 #x00B6 #x00D7 #x00F7 #x02C7 #x02C9 #x02CA #x02CB #x02D9
> are displayed with wide glyphs,
> and other characters listed in the form are displayed with narrow glyphs.
> 
> (let ((base-font "Noto Sans Mono")
>       (alt-font "Noto Sans Mono CJK JP Regular")
>       (l '(#x00A7 #x00B1 #x00B6 #x00D7 #x00F7
>                   #x02C7 #x02C9 #x02CA #x02CB #x02D9
>                   #x2015 #x2016 #x2020 #x2021 #x2025 #x2027 #x2030
>                   #x2035 #x203B #x2042 #x2051
>                   #x2100 #x2103 #x2105 #x2109 #x210A #x210F #x2116
>                   #x2121 #x2126 #x2127 #x212B #x2135 #x213B
>                   #x221A #x221E #x2229 #x2248 #x2261 #x2264 #x2265
>                   (#x2500 . #x25A0))))
>   (set-frame-font base-font)
>   (dolist (c l) (set-fontset-font t c alt-font)))

This makes "Noto Sans Mono" the default face's font, so it will be
used for any character supported by the font.  If that's what you see,
then it's the intended behavior, AFAIK.

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