bug#57693: 29.0.50; Is there a more reliable version of `char-displayable-p'?

[Ihor Radchenko]

Eli Zaretskii <eliz@gnu.org> writes:

> If you need to care for TTY frames, that problem has no known solution
> that works for all terminal emulators.  So using fancy characters in
> general-purpose Emacs features is a problem that cannot be solved
> programmatically, or at least we don't currently know how to do that.

I am not sure if it is relevant, but I see
https://unix.stackexchange.com/questions/184345/detect-how-much-of-unicode-my-terminal-supports-even-through-screen

May it be something of use for Emacs?

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>