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Re: script-representative-chars for emoji

From: Robert Pluim
Subject: Re: script-representative-chars for emoji
Date: Mon, 04 Oct 2021 18:55:55 +0200

>>>>> On Mon, 04 Oct 2021 19:37:56 +0300, Eli Zaretskii <eliz@gnu.org> said:

    >> From: Robert Pluim <rpluim@gmail.com>
    >> Gmane-Reply-To-List: yes
    >> Date: Mon, 04 Oct 2021 16:55:38 +0200
    >> Hi,
    >> I added the following
    >> (emoji #x1F300 #x1F600 #xFE0F)))
    >> to script-representative-chars when creating the emoji script, but Iʼm
    >> now wondering if that #xFE0F was a mistake, as there are fonts that
    >> can represent emoji that won't have a glyph for VS-16. Iʼve not
    >> noticed any negative effects so far, but perhaps we should remove it
    >> in emacs-28?

    Eli> Didn't we add VS-16 to have sequences that begin with non-Emoji
    Eli> character and end in VS-16 displayed in Emoji font, the change you did
    Eli> in font_ranges?  If you remove it, what happens to the likes of U+25AB
    Eli> followed by U+FE0F ?

We added it to the emoji script, but that doesnʼt mean it needs to be
in script-representative-chars. U+25AB U+FE0F is still composed
correctly and displays with the colourful emoji glyph if I remove it
from there.


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