GNU bug report logs - #71164
14.0.5; Font lock annoyance

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From: Derek Clegg <derek <at> me.com>
To: Arash Esbati <arash <at> gnu.org>
Cc: 71164 <at> debbugs.gnu.org, Ikumi Keita <ikumi <at> ikumi.que.jp>, Paul Nelson <ultrono <at> gmail.com>
Subject: bug#71164: 14.0.5; Font lock annoyance
Date: Sat, 29 Jun 2024 18:49:02 -0700

Thanks for the email. This has fixed the original problem, so I think it’s good to go.

Best,
Derek

> On Jun 29, 2024, at 1:19 PM, Arash Esbati <arash <at> gnu.org> wrote:
> 
> Arash Esbati <arash <at> gnu.org> writes:
> 
>> Arash Esbati <arash <at> gnu.org> writes:
>> 
>>> Ikumi Keita <ikumi <at> ikumi.que.jp> writes:
>>> 
>>>> It seems it does work while font lock itself is still disabled. I
>>>> speculate that the current syntax propertize function only needs that
>>>> font lock variables are set up. Then I hope the patch below does the
>>>> trick.
>>>> 
>>>> Derek, can you try it?
>>>> 
>>>> Regards,
>>>> Ikumi Keita
>>>> #StandWithUkraine #StopWarInUkraine
>>>> #Gaza #StopMassiveKilling #CeasefireNOW
>>>> 
>>>> diff --git a/font-latex.el b/font-latex.el
>>>> index ccddd8b1..7a02e3f4 100644
>>>> --- a/font-latex.el
>>>> +++ b/font-latex.el
>>>> @@ -1313,7 +1313,10 @@ triggers Font Lock to recognize the change."
>>>>   (let ((kws ;; (if (derived-mode-p 'docTeX-mode)
>>>>              ;;     font-latex-doctex-syntactic-keywords
>>>>                font-latex-syntactic-keywords)) ;; )
>>>> -    (syntax-propertize-via-font-lock kws)))
>>>> +    (let ((func (syntax-propertize-via-font-lock kws)))
>>>> +      (lambda (start end)
>>>> +        (or font-lock-set-defaults (font-lock-set-defaults))
>>>> +        (funcall func start end)))))
>>>> 
>>>> ;;;###autoload
>>>> (defun font-latex-setup ()
>>> 
>>> Derek, can you please report back if the patch above fixes the issue for
>>> you?  TIA.
>> 
>> And while we're at it: Do you have a recipe to reproduce this,
>> preferably starting with "emacs -Q"?  I don't get the errors you
>> described with:
>> 
>>  • emacs -Q
>>  • Activate AUCTeX
>>  • eval (setq TeX-install-font-lock #'ignore)
>>  • open a .tex file and start typing
> 
> Ping!  Any updates on this?
> 
> @Keita: In case we don't get any response, how do want to proceed?
> Install the change or close this report without the change?  My choice
> would be the latter since I can't reproduce the issue.
> 
> Best, Arash

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