Hi Pablo,
The section breaks are a bit of a headache. In the old mechanism (also
mkii) we used penalties between different section levels (different
values so that there is some hierarchy).
In mkiv we have a weighted penalty/glue mechanism which has advantages
but can also create side effects. The method of a few weeks ago coul
deal with
\section followed by 100 \subsections
i.e. no text between this. In a strict mechanism you end up with one
long page fur to all the penalties. So, there was some precaution for
this. However that didn't work well with content following sections that
prefers breaks (read: section head followed by e.g. itemize or tabulate).
So, the newer mechanism tries to analyze the page stream which
(currently) is somewhat tricky. That's why we need to iterate to an
acceptable solution.
Some of these mkiv mechanisms are already a bit old and could be done
better using some newer luatex trickery (but i need tome to do that).
It would be nice to have a large test case for this (sort of hard to
make one as some trial and error is involved). As you already have some,
best collect them for future reference.
A new beta ...
Hans
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Hans Hagen | PRAGMA ADE
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