[tex-live] Possibility to enhance registers

[Sigitas Tolusis]

Hi,

On Sep 24, 2012, at 10:13 PM, Zdenek Wagner wrote:

> 2012/9/24 Robin Fairbairns <Robin.Fairbairns at cl.cam.ac.uk>:
>> Zdenek Wagner <zdenek.wagner at gmail.com> wrote:
>> 
>>> 2012/9/24 Robin Fairbairns <Robin.Fairbairns at cl.cam.ac.uk>:
>>> 
>>>> position on page, perhaps?  we're operating in the dark, here: you're
>>>> letting out snippets of information, none of which is likely to be
>>>> diagnostic, so far.
>>> 
>>> It may be even more complex because page breaking is an asynchronous
>>> operation.
>> 
>> which would explain the apparently random nature of the problem.
>> 
>> i wonder if "simply" redefining \mtc at BBR without that \unpenalty would
>> solve the problem ... at least in this case.
>> 
> Yes, it will solve the problem but the question is why \unpenalty was
> used. LaTeX contains its own internal structures and switches so that
> the macros could know whether \penalty is needed. \addpenalty is often
> used instead of the \penalty primitive. I do not know the internals of
> the minitoc package. I do not know when I used this package the last
> time, maybe 15 years ago...
> 
>> robin

What about to change \unpenalty 
with \ifvmode\else\expandafter\unpenalty\fi
in \mtc at BBR definition?

--
Sigitas

P.S. Suggested solution is not tested in any case.

> 
> -- 
> Zdeněk Wagner
> http://hroch486.icpf.cas.cz/wagner/
> http://icebearsoft.euweb.cz
> 
>