Re: Ligature support

[Eli Zaretskii]

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Date: Fri, 05 Nov 2021 23:17:58 +0100
> Cc: emacs-devel@gnu.org, yuri.v.khan@gmail.com
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > That has nothing to do with fonts being monospaced, all it tells you
> > is that DejaVuSansMono doesn't support ligatures.  But other
> > monospaced fonts do.
> 
> That font was one of the fonts Yuri listed as having fi ligatures.  And
> indeed: 
> 
>         <LigatureSubst index="0">
>           <LigatureSet glyph="f">
>             <Ligature components="l" glyph="fl"/>
>             <Ligature components="i" glyph="fi"/>
>           </LigatureSet>
>         </LigatureSubst>
> 
> But HarfBuzz is still choosing not to use a ligature here, apparently,
> for reasons that escape me.

Before or after the setting of composition-function-table that I
posted?  If before, it's expected.