GNU bug report logs - #78587
[PATCH] TeX-find-macro-end

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "Paul D. Nelson" <ultrono <at> gmail.com>
Subject: bug#78587: closed (Re: bug#78587: [PATCH] TeX-find-macro-end)
Date: Fri, 30 May 2025 15:07:02 +0000

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Your bug report

#78587: [PATCH] TeX-find-macro-end

which was filed against the auctex package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 78587 <at> debbugs.gnu.org.

-- 
78587: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=78587
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Arash Esbati <arash <at> gnu.org>
To: "Paul D. Nelson" <ultrono <at> gmail.com>
Cc: 78587-done <at> debbugs.gnu.org
Subject: Re: bug#78587: [PATCH] TeX-find-macro-end
Date: Fri, 30 May 2025 17:06:30 +0200

Hi Paul,

"Paul D. Nelson" <ultrono <at> gmail.com> writes:

> I think the answer to both of your questions is "yes".  Thanks for your
> feedback and best,

I massaged that change a little and installed it.  Many thanks for the
change set, closing.

Best, Arash

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From: "Paul D. Nelson" <ultrono <at> gmail.com>
To: bug-auctex <at> gnu.org
Subject: [PATCH] TeX-find-macro-end
Date: Sun, 25 May 2025 17:14:44 +0200

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Hi all,

I noticed that TeX-find-macro-end doesn't work as expected way on, e.g.,

  \begin{enumerate}[a)]

The issue arose organically when folding such macros.

To see the basic issue, evaluate the following in scratch:

--8<---------------cut here---------------start------------->8---
(mapcar
 (lambda (str)
   (with-temp-buffer
     (LaTeX-mode)
     (insert str)
     (char-to-string (char-before (TeX-find-macro-end-helper (point-min))))))
 '("\begin{enumerate}[a]"
   "\begin{enumerate}[(a)]"
   "\begin{enumerate}[a)]"))
--8<---------------cut here---------------end--------------->8---

This returns ("]" "]" ")") but should return ("]" "]" "]").

The attached patch seems to address the issue by using a stripped syntax
table, which seems like a standard approach in tex.el.  Any feedback
would be welcome.

Paul

[0001-Fix-TeX-macro-end-detection-in-some-edge-cases.patch (text/x-patch, attachment)]

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