bug#51578: 29.0.50; error on display-bindings when invoked from a tty

[Bird <birdsite@airmail.cc>]

Eli Zaretskii <eliz@gnu.org> writes:

>> When emacs -Q is ran in a tty(C-M-F2 on gnu/linux) and invokes
>> describe-bindings, an error occurs. the debug information is:
[snip]
> Thanks.  Does the patch below help?
>
> diff --git a/lisp/outline.el b/lisp/outline.el
> index 2a6f475..5b20a42 100644
> --- a/lisp/outline.el
> +++ b/lisp/outline.el
> @@ -961,7 +961,8 @@ outline--make-button
>                            " " (buffer-substring (point) (1+ (point))))))
>  
>  (defun outline--valid-emoji-p (string)
> -  (when-let ((font (car (internal-char-font nil ?😀))))
> +  (when-let ((font (and (display-multi-font-p)
> +                        (car (internal-char-font nil ?😀)))))
>      (font-has-char-p font (aref string 0))))
>  
>  (defun outline--valid-char-p (string)
Thanks! the above patch does work in a tty.

Is it possible to always use that triange thingy (which is used in a
tty) instead of the emoji in describe-bindings? i much prefer those
compared to emojis ;)

-- 
Smartness runs in my family.  When I went to school I was so smart my
teacher was in my class for five years.
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