GNU bug report logs - #78585
[PATCH] TeX-fold-verbs: improve macro recognition

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "Paul D. Nelson" <ultrono <at> gmail.com>
Subject: bug#78585: closed (Re: bug#78585: [PATCH] TeX-fold-verbs: improve
 macro recognition)
Date: Tue, 27 May 2025 08:53:02 +0000

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Your bug report

#78585: [PATCH] TeX-fold-verbs: improve macro recognition

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 78585 <at> debbugs.gnu.org.

-- 
78585: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=78585
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: 78585-done <at> debbugs.gnu.org
Subject: Re: bug#78585: [PATCH] TeX-fold-verbs: improve macro recognition
Date: Tue, 27 May 2025 10:52:21 +0200

Hi Paul,

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

> I had in mind stuff like:
>
> (string-match "\\\\verb\\*\\_>" "\\verb*") ; t
> (string-match "\\\\verb\\*\\>" "\\verb*") ; nil
> (string-match "\\\\verb\\*\b" "\\verb*") ; nil
>
> (I'll confess that I am not too familiar with what sorts of verbatim
> macro names are out there, but figured ending on a symbol boundary would
> be relatively safe.)

Ah, yes, thanks, there are also starred versions.  I installed your
patch and therefore closing this report.  Thanks again for your
contribution.

Best, Arash

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From: "Paul D. Nelson" <ultrono <at> gmail.com>
To: bug-auctex <at> gnu.org
Subject: [PATCH] TeX-fold-verbs: improve macro recognition
Date: Sun, 25 May 2025 14:52:58 +0200

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Hi all,

This patch adds a couple "boundary checks" to the verbatim folding code
I contributed earlier.

Here's a sample document illustrating what could go wrong:

--8<---------------cut here---------------start------------->8---
\documentclass{article}
\usepackage{pythontex}
\NewDocumentCommand{\pyvm}{ m }{\mbox{\pyv{#1}}}

\begin{document}

$\pyvm{42}$

\end{document}
--8<---------------cut here---------------end--------------->8---

With the previous code, folding would trigger on \pyvm{42} as if it were
\pyv with delimiter m.  The fix is to require a word boundary in the
macro-matching regexp.

The other change is a bounds check.  I made this change locally a few
months ago, and think it was motivated by a parsing error, but
unfortunately forgot to save a minimal reproduction.

Any feedback welcome.

Thanks, best,

Paul

[0001-TeX-fold-verbs-improve-delimiter-and-macro-handling.patch (text/x-patch, attachment)]

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