tex4ht - Bugs: bug #508, Error after loading hyperref from... [Puszcza]

tex4ht - Bugs: bug #508, Error after loading hyperref from...

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bug #508: Error after loading hyperref from a class file

Submitted by:	Ulrich Müller <ulm>
Submitted on:	Tue Apr 27 09:11:34 2021

Category:	None	Priority:	5 - Normal
Severity:	5 - Normal	Status:	None
Privacy:	Public	Assigned to:	None
Open/Closed:	Closed

Wed Apr 28 10:51:30 2021, comment #2:

Thank you, this has fixed the original bug.

Unfortunately, a new issue with hyperref has surfaced. I've filed bug #510 for it.

Ulrich Müller <ulm>

Tue Apr 27 13:02:02 2021, comment #1:

This is caused by the fact that TeX4ht is not active in the class file, and it doesn't include hyperref-hooks.4ht file. It seems that it works when I move code from hyperref-hooks.4ht to hyperref.4ht, so I will update the sources and it should fix the issue.

In the meantime, you can try the following bugclass.4ht file:

\@ifpackageloaded{nameref}{}
{%
\let\sv:label\label
\RequirePackage{nameref}%
\let\label\sv:label
}
\endinput

This is the code from hyperref-hooks.4ht

Michal Hoftich <michal_h21>
Project Member

Tue Apr 27 09:11:34 2021, original submission:

When loading the hyperref package from a class file, I get the following error when the first \label is encountered:

! Argument of \strip@prefix has an extra }.
<inserted text>
\par
l.3 \label{foo}

To reproduce, run "mk4ht xhlatex bug" with the attached bug.tex and bugclass.cls. The full log file is attached too.

I see this problem with TeX Live 2021 but not with 2020.

As a workaround, I postpone loading of hyperref:
\g@addto@macro\@documentclasshook{\RequirePackage{hyperref}}
So looks like load order matters.

Ulrich Müller <ulm>

Attached Files

file #408: bug.tex added by ulm (74B - text/x-tex)

file #409: bugclass.cls added by ulm (96B - text/x-tex)

file #410: bug.log added by ulm (20kB - text/x-log)

Depends on the following items: None found

Items that depend on this one: None found

Carbon-Copy List

-unavailable- added by michal_h21 (Posted a comment)

-unavailable- added by ulm (Submitted the item)

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4 latest changes follow.

Date	Changed By	Updated Field	Previous Value	Replaced By
Mon Sep 27 12:34:04 2021	michal_h21	Open/Closed	Open	Closed
Tue Apr 27 09:11:34 2021	ulm	Attached File	-	Added bug.tex, #408
		Attached File	-	Added bugclass.cls, #409
		Attached File	-	Added bug.log, #410

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