bug#62220: In-buffer completion and LaTeX-math-cal

[Tassilo Horn]

Arash Esbati <arash@gnu.org> writes:

Hi Arash,

> if you have in-buffer completion running, take this small example:
>
>   \documentclass{article}
>   \begin{document}
>   $\La*$
>   \end{document}
>
> move point to * and hit TAB to get the completion candidates.  This is
> what I see with corfu:
>
>  
>
>
> Any idea where that `LaTeX-math-cal' is coming from?

TeX-complete-list contains an entry

   (LaTeX--after-math-macro-prefix-p 1
                                   (lambda nil
                                     (append
                                      (mapcar #'cadr LaTeX-math-list)
                                      (mapcar #'cadr LaTeX-math-default)))
                                   (if TeX-insert-braces "{}"))

(see latex.el:8074) and LaTeX-math-default contains an entry where the
cadr is the symbol LaTeX-math-cal.  I guess, there should be a
(seq-filter #'stringp ...)  around the (append ...).

Bye,
Tassilo