bug#63731: [PATCH] Support Emoji Variation Sequence 16 (FE0F) where appropriate

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: 63731@debbugs.gnu.org,  steven@stebalien.com
> Date: Mon, 29 May 2023 18:13:14 +0200
> 
> >>>>> On Mon, 29 May 2023 17:55:49 +0300, Eli Zaretskii <eliz@gnu.org> said:
> 
>     Eli> That's because the first one shows two glyphs that are
>     Eli> "pseudo-composed": not by the font, but by our hand-made 
> "composition"
>     Eli> in compose-gstring-for-graphic.  Try this instead:
> 
>     Eli>       (set-char-table-range
>     Eli>        composition-function-table
>     Eli>        #xFE0F
>     Eli>        '(["\\c.\ufe0f" 1 font-shape-gstring]))
> 
>     Eli> so that we only see a composition if the font indeed agrees to
>     Eli> compose.  What do you see?
> 
> It still displays a single glyph with a thin-space. If I customize
> `glyphless-char-display-control' to display hex codes for VS, then it
> display a hex box.
> 
> So I guess that means weʼre not composing?

What does "C-u C-x =" say in this case?