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Re: BUG Re: [PATCH] ox-latex.el: Unify in one single list Babel and Poly

From: Ihor Radchenko
Subject: Re: BUG Re: [PATCH] ox-latex.el: Unify in one single list Babel and Polyglossia languages alists
Date: Sat, 23 Jul 2022 22:22:00 +0800

Kai von Fintel <fintel@mit.edu> writes:

>>>> Debugger entered--Lisp error: (void-variable 
>>>> org-latex-babel-language-alist)
>>>>  org-latex--format-spec(
>> org-latex-babel-language-alist is the new variable introduced in the
>> patch. You seem to be loading "mixed" Org versions - built-in + latest.
> No, I’m looking just at the HEAD version of =ox-latex.el= at 
> https://git.savannah.gnu.org/cgit/emacs/org-mode.git/tree/lisp/ox-latex.el
> The new variable is =org-latex-language-alist=, defined on line 175f.
> But, =org-latex—format-spec=, defined on line 1860ff, uses the old variable 
> names:
> (defun org-latex--format-spec (info)
>   "Create a format-spec for document meta-data.
> INFO is a plist used as a communication channel."
>   (let ((language (let ((lang (plist-get info :language)))
>                   (or (cdr (assoc-string lang org-latex-babel-language-alist 
> t))
>                       (nth 1 (assoc-string lang 
> org-latex-polyglossia-language-alist t))
>                       lang))))
> This borks my latex exports.

This is unrelated to the error you are seeing. void-variable error is
thrown for org-latex-babel-language-alist, so I still suggest checking
the place in your config where you are loading Org.

However, you did raise an important omission in the patch - the variable
value was lost in the patch. It was not supposed to happen. I now
restored (in 127e7fee4) the defconst statements and moved them into
org-compat.el. Thus, they can be used by third-party code for the time


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