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bug#39799: 28.0.50; Most emoji sequences don’t render correctly

From: Mike FABIAN
Subject: bug#39799: 28.0.50; Most emoji sequences don’t render correctly
Date: Fri, 28 Feb 2020 20:29:03 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

Robert Pluim <address@hidden> さんはかきました:

> OK. How do you determine which font is being used in gedit?

By comparing how it looks like in gedit with how it looks like in my own
little emoji-tool “emoji-picker”. “emoji-picker” uses the same rendering
stack as gedit (harfbuzz, cairo, pango).

As you can see in the screenshots of “emoji-picker” attached to my last
mail, when I right click on an emoji I get a popup with some information
about that emoji where I also display which font was actually used to
render that emoji. That might be a different font from what was
requested in the font menu of emoji-picker. A bit similar how you can
check in Emacs with “C-u C-x =” what font was really used for the
character under the cursor.

In “emoji-picker” I can see that parts of an emoji-sequence are
sometimes even rendered in several different fonts if this sequence was
recently added by Unicode and Pango does not know it yet.


Mike FABIAN <address@hidden>

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