From: Eli Zaretskii <eliz@gnu.org>
To: Werner LEMBERG <wl@gnu.org>
Cc: luangruo@yahoo.com, 65803@debbugs.gnu.org, shingo.fg8@gmail.com
Subject: bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows
Date: Sat, 09 Sep 2023 15:51:38 +0300 [thread overview]
Message-ID: <83y1hftspx.fsf@gnu.org> (raw)
In-Reply-To: <20230908.164911.110008175722794498.wl@gnu.org> (message from Werner LEMBERG on Fri, 08 Sep 2023 14:49:11 +0000 (UTC))
> Date: Fri, 08 Sep 2023 14:49:11 +0000 (UTC)
> Cc: eliz@gnu.org, 65803@debbugs.gnu.org, shingo.fg8@gmail.com
> From: Werner LEMBERG <wl@gnu.org>
>
> > [...] CJK fonts customarily contain tens of
> > thousands of glyphs, of which only a small subset represent ASCII
> > ``monospace'' characters relevant to Emacs, but the `tmAveCharWidth'
> > field, which is derived from the font's OS/2 table:
> >
> > https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6OS2.html
> >
> > [...]
>
> In general I recommend to refer to the OpenType specification
>
> https://learn.microsoft.com/en-us/typography/opentype/spec/
>
> which is an ISO standard (ISO/IEC 14496-22 “Open Font Format”),
> instead of the Apple-only TrueType reference. There are significant
> differences, especially for modern fonts.
How does one know, using the OpenType specification info, whether a
given font is fixed-pitch or proportional? I seem to be unable to
find this in the spec, but maybe I need new glasses.
next prev parent reply other threads:[~2023-09-09 12:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-07 13:38 bug#65803: 29.1; Noto Sans Mono CJK JP has doubled-width on Windows Shingo Tanaka
2023-09-07 13:50 ` Eli Zaretskii
2023-09-07 14:24 ` Shingo Tanaka
2023-09-07 14:40 ` Eli Zaretskii
2023-09-07 14:57 ` Eli Zaretskii
2023-09-07 23:19 ` Shingo Tanaka
2023-09-08 6:25 ` Eli Zaretskii
2023-09-07 22:26 ` Shingo Tanaka
2023-09-08 12:18 ` Eli Zaretskii
2023-09-08 13:42 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-08 14:49 ` Werner LEMBERG
2023-09-09 12:51 ` Eli Zaretskii [this message]
2023-09-09 13:42 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-09 14:45 ` Eli Zaretskii
2023-09-09 12:17 ` Eli Zaretskii
2023-09-09 13:38 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-09 14:39 ` Eli Zaretskii
2023-09-09 14:57 ` Eli Zaretskii
2023-09-10 1:00 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 5:22 ` Eli Zaretskii
2023-09-10 5:36 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 5:42 ` Eli Zaretskii
2023-09-10 5:55 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 6:48 ` Eli Zaretskii
2023-09-10 7:31 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 7:53 ` Eli Zaretskii
2023-09-10 7:55 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 8:01 ` Eli Zaretskii
2023-09-10 8:08 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 8:19 ` Eli Zaretskii
2023-09-10 8:31 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 8:50 ` Eli Zaretskii
2023-09-10 9:30 ` Eli Zaretskii
2023-09-10 11:29 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 11:44 ` Eli Zaretskii
2023-09-10 12:09 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 12:43 ` Eli Zaretskii
2023-09-10 12:39 ` Shingo Tanaka
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