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: Arash Esbati <arash <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#78585: closed ([PATCH] TeX-fold-verbs: improve macro recognition)
Date: Tue, 27 May 2025 08:53:02 +0000

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Your message dated Tue, 27 May 2025 10:52:21 +0200
with message-id <m2iklmzb96.fsf <at> macmutant.fritz.box>
and subject line Re: bug#78585: [PATCH] TeX-fold-verbs: improve macro recognition
has caused the debbugs.gnu.org bug report #78585,
regarding [PATCH] TeX-fold-verbs: improve macro recognition
to be marked as done.

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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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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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