Re: [PATCH] ox-koma-letter.el: Add support for section

[Rasmus <rasmus@gmx.us>]

Hi Daniele,

Daniele Pizzolli <dan@toel.it> writes:

> thanks for you comment.  I try to explain my point of view better.  Now
> the export to letter silently discard the headings text in the exported
> tex.  This is quite bad, even if documented.  As a user I want to change
> quite easily the export backend (text, latex, beamer, ...)  while
> retaining most of my work.  Every backend as it's own supported
> features, but discarding the input provided by the user does not provide
> the best user experience to me.

That's a fair point.  Nonetheless,

> By the way this patch does not change the final output, if there is no
> section.lco available.  So there should be no regression and only
> improvements.

> I really prefer something that instead of discarding the user input
> rewrite it to fit the backend features (if there is no heading/section
> support, use something like the start of paragraph, and support section
> only if enabled by the user) but this is beyond my coding abilities in
> elisp, so I sent the minimal working patch with the minimal impact on
> existing behaviour.


Whether sections.lco is available is nontrivial.  As I remember the patch,
it also imposed level two headings to be sections.

If you really think this is the right approach, perhaps the "H:" option
could be used to set the special heading level...  We’d need this since
you can specify the opening with a heading.

>>> +Add [sections] to LATEX_CLASS_OPTIONS with:
>>> +
>>> +#+LATEX_CLASS_OPTIONS: [sections]
>>> +
>>> +If section.lco is unavaliable the section are exported in the tex
>>> +source but not rendered in the final pdf.
>>
>> Whether section.lco is available or not is a complicated question.  You
>> first need to figure out what is the tex distribution (what if it’s not in
>> PATH) and whether section.lco is available via something like kpsewhich.
>> Note that e.g. TL also looks in the current path.
>
> I use org to touch as less latex as possible, I just downloaded the
> section.lco and put in the same directory of my org file and everything
> was working.  A little before I used apt-file search section.lco but
> since nothing was found I quickly reverted to the manual download.  I
> wish that everything is packaged as distro package, but I can survive
> some manual work.

This is because sections.lco is not part of KOMA-Script (like titlepage¹).
E.g. on my system with TL:

     $ kpsewhich sections.lco
     /home/rasmus/.texmf/tex/latex/koma-script/sections.lco

kpsewhich/tex also looks in the current directory, which is why you can
just place it in the same folder.

Cheers,
Rasmus

Footnotes: 
¹   http://www.komascript.de/titlepage

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