Re: [bug] Export to latex truncates long subsections (WE attached)

[Julius Dittmar]

Am 19.11.20 um 05:58 schrieb Tim Cross:
> Vladimir Nikishkin <lockywolf@gmail.com> writes:
>
> > So what is the status of this story?
> >
> > I believe that if one exports an org file with sufficiently many empty
> > TODO headings (to me, it seems a perfectly valid use case of org,
> > printing lists of TODOs), they won't fit on a single page, and latex
> > will drop them. Would the latex snippet in this thread be a good
> > candidate for inclusion into org as a canned trick?
> >
> > On Tue, 27 Aug 2019 at 14:57, Vladimir Nikishkin <lockywolf@gmail.com> wrote:
> > > I have indeed investigated the issue, and this is the link:
> > > https://latex.org/forum/viewtopic.php?f=47&t=32788
> > >
> > > To make the long story short, the folowing trick is needed to allow
> > > page breaks after headings (which is a completely standard case in
> > > -org).
> > >
> > > #+begin_src latex
> > > \usepackage{xpatch}
> > > \makeatletter
> > > % This is not recommended, because it can break several things
> > > \xpatchcmd{\@afterheading}{\@nobreaktrue}{\@nobreakfalse}{%
> > > \typeout{WARNING: \string\@afterheading\space broken}%
> > > }{%
> > > \@latexerr{ERROR: Cannot patch \string\@afterheading}\@ehd%
> > > }
> > > \makeatother
> > > #+end_src
> > >
> > > Shall this trick be considered for inclusion in 'org' officially?
> > > I mean, having lists of empty headings is a perfectly standard use case for org.
>
> What are the implications of doing this? In particular, the comment
>
> > > % This is not recommended, because it can break several things
>
> Many people have quite complex environments for generating Latex and we
> would need to be certain that adding this package doesn't 'break several
> things'.

For one thing, it allows something (La)TeX tries to circumvent: page
breaks immediately after a section heading. In normal documents, that's
something you want to avoid as much as possible.

Perhaps another approach would be more fitting, but it needs changing
the LaTeX output routine: Have org add something invisible after a
heading in case that heading's body is empty. That makes page breaks
possible (after that invisible something) without changing the behaviour
for non-empty sections.

Just my thoughts,
Julius Dittmar