[tex4ht] [bug #639] ltugboat.cls is incompatible with tex4ht

[Ulrike Fischer]

cmd-hooks are sometimes a bit fragile. They can break if a command has
been built under an unusual catcode regime.

tex4ht redefines \@sect to

\xdef \c:secnumdepth {#2}\:Sc 3 \no at sect
{#1}{#2}{#3}{#4}{#5}{#6}[#7]{\:Sc 4#8\:Sc 2}\HtmlEnv .

and the hooks do not like that. That seems not to be new. I get an error
also with texlive 2023.

You could perhaps now move the code from the hook into the command
directly now.

It looks as if that was meant to be tempory anyway.


Ulrike

Am 12.10.2024 um 22:40 schrieb Karl Berry:
> Follow-up Comment #1, bug #639 (project tex4ht):
>
> The use of LaTeX hooks in ltugboat hasn't changed since 2023-08-05, so I would
> guess this has to be something recent in tex4ht?
>
> Ulrike gave me a recipe then for getting the current label name (I don't
> really understand it), which is used iff \fmtversion is later than 2023-06-01.
> I always use the latest latex-dev, so the ltugboat code has been getting
> exercised since it was put in.
>
> Unless ... Boris, were you using an older LaTeX before now, e.g., with the
> hefferon review you just did a few days ago?
>
> Michal, if it helps, the calls in ltugboat look like
> ```
> \AddToHookWithArguments{cmd/@sect/before}
> \AddToHookWithArguments{cmd/@ssect/before}
> ```
>
> I hope you have some idea ...
>
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