Re: Emacs 28: Specific TTF font gets loaded with font-backend x instead of ftcrhb

[Tassilo Horn <tsdh@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

Hi Eli,

>> One other thing to try is M-: (setq font-log nil) before you create
>> the second frame, and then look at the value of font-log afterwards.
>
> It is best to look at (pp (reverse font-log)), so that you see it top
> to bottom, not the other way around, and also nicely formatted.

I'll try to remember it for the next time.

While we are at a related topic: I think that I've read a message of
yours where you said that prettify-symbols-mode is a candidate for
deprecation because there was a better way for (real) ligatures, at
least, that's what I understood.

Is "the new way" the thing with composition-function-table?  Something
like the Fira Code font emacs setup shown here?

  https://github.com/tonsky/FiraCode/wiki/Emacs-instructions#using-composition-char-table

I've tried that code although with the PragmataPro font in the hope it
would work at least partly given that both fonts offer a quite large
common subset of ligatures but couldn't see any difference, e.g., -> is
not composed to an arrow.

Is there any documentation I could read?

Bye,
Tassilo