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From: "Elias Mårtenson" <lokedhs@gmail.com>
To: emacs-devel <emacs-devel@gnu.org>
Subject: Emacs's algorithm for glyph substitution
Date: Fri, 29 Jun 2018 10:54:51 +0800	[thread overview]
Message-ID: <CADtN0WJc5wT26_yvvLF=FPM62SXSOwyaBV-JGN68gEsp-M-rxA@mail.gmail.com> (raw)

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How does Emacs choose which glyph to use (i.e. from which font to pick the
glyph from) in case the required character is missing from the user's
chosen font?

I have noticed that if I use Source Code Pro and insert some greek
characters into the buffer, it picks those characters from the font Noto
Sans Display instead.

I have a need to do the same thing (I've been implementing a new font
renderer for McCLIM) and since Emacs does such a good job with it, I wanted
to see how Emacs does it, but I have been unable to find the code where
this substitution happens.

Does anyone know where in the Emacs code base this happens, and what the
algorithm is?

Regards,
Elias

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             reply	other threads:[~2018-06-29  2:54 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-29  2:54 Elias Mårtenson [this message]
2018-06-29  6:35 ` Emacs's algorithm for glyph substitution Eli Zaretskii

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