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

From: Daniele Pizzolli
Subject: Re: [O] [PATCH] ox-koma-letter.el: Add support for section
Date: Tue, 05 Jan 2016 18:12:33 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)

On Mon, Jan 04 2016, Rasmus  wrote:

> Hi Daniele,
> Daniele Pizzolli <address@hidden> 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,

Hi Rasmus,
thanks for recognizing it.

>> 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.

Not really.  With the current patch, all the headings inside the main
content (that is the first not special tagged heading) are rendered with
a section level that is one level more than expected because the first
level is taken away by the main content (because the main content is not
a section).  So there should be some work to adjust the level by adding
+1.  The behaviour of one level headings is left unchanged because of
the way ox-koma-letter works, but this can be changed, if there is a
better approach.

> 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.

I am lost here.  H: should work as expected.  We have the inverse
problem (go up to the level with sections).

>>>> +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.

Thanks for the info, I admit that LT and kpsewhich are unknown to me, as
I said I try to stay away from latex and tex as much as possible.  If
there is some agreement on the patch I will update the doc to add those


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