Re: Entering emojis

[Eli Zaretskii]

> Date: Wed, 27 Oct 2021 19:20:42 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: raman@google.com, mattiase@acm.org, schwab@linux-m68k.org, 
>     stefankangas@gmail.com, emacs-devel@gnu.org
> 
> >  https://en.wikipedia.org/wiki/Ancient_Egypt#Historical_development
> >
> > The layout in the vertical direction is completely incorrect in all of 
> > the images you show.  Basically, it looks like the vertical layout of 
> > hieroglyphs above other hieroglyphs is either unsupported or doesn't 
> > work.
> 
> It should, again if you look at the PDF I linked earlier, you'll see many 
> examples of up to four glyphs combined together, vertically and 
> horizontally.

We don't know what software they used for layout, do we?

> > Maybe I made mistakes in the composition machinery, and that's why it 
> > doesn't display correctly.  But it sounds unlikely, because I see in 
> > your images glyphs that shouldn't be there (they are control characters 
> > which should disappear from display).  Or maybe HarfBuzz doesn't yet 
> > support this script well enough.
> >
> 
> All this is possible, indeed, and I'd even say probable.

What does hb-view show for that text with those fonts?  If it shows
correct display, the problem is somewhere in Emacs.