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Re: Entering emojis

From: Robert Pluim
Subject: Re: Entering emojis
Date: Wed, 27 Oct 2021 15:07:49 +0200

>>>>> On Wed, 27 Oct 2021 14:36:44 +0200, Robert Pluim <rpluim@gmail.com> said:

>>>>> On Wed, 27 Oct 2021 14:48:37 +0300, Eli Zaretskii <eliz@gnu.org> said:
    >>> Why can't we just do that automatically?

    Eli> I don't know why the macOS font backend doesn't find this font in your
    Eli> case, it's something that should be investigated.

    Robert> I have a vague memory that thereʼs code in the macOS font backend 
    Robert> will only allow color fonts if explicitly requested, and there 
being a
    Robert> good reason for it. Iʼll trawl through my archives.

Yes, src/macfont.m:2419

          /* Don't use a color bitmap font unless its family is
             explicitly specified.  */
          if ((sym_traits & kCTFontTraitColorGlyphs) && NILP (family))

which I asked Yamamoto-san about last year, and the response was:

which does a good job of explaining *what* was done for the Mac port
(which is a separate port) but not why.

Anyway, if I delete the above, Apple Color Emoji is used for emoji.

Iʼd push it to emacs-28, but I have no idea of the repercussions.


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