From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: EXPORT_LATEX_HEADER property
Date: Thu, 03 Mar 2016 12:26:02 +0100
Message-ID: <87bn6vpzud.fsf@nicolasgoaziou.fr>
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	(Fabrice Popineau's message of "Thu, 3 Mar 2016 12:02:47 +0100")
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To: Fabrice Popineau <fabrice.popineau@gmail.com>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>

Hello,

Fabrice Popineau <fabrice.popineau@gmail.com> writes:

> First, I can't find where is documented the difference between
> :EXPORT_LATEX_HEADER:
> and
> :EXPORT_LATEX_HEADER+:

See (info "(org) Property syntax").

> Second, when I use several lines with
> :EXPORT_LATEX_HEADER+:
> they  are concatenated into a single line.

Correct.

> This is annoying because:
>
> :PROPERTIES:
> :EXPORT_LATEX_HEADER+: \usepackage{mathptmx} % rm & math
> :EXPORT_LATEX_HEADER+: \usepackage[scaled=0.90]{helvet} % ss
> ...
> :END:
>
> results in
>
> \usepackage{mathptmx} % rm & math  \usepackage[scaled=0.90]{helvet} % ss
>
> which is obviously unintended.
>
> Could it be possible to add a '\n' between those lines?

Not quite what you are asking for, but couldn't you simply not comment
each line?

Actually

  :PROPERTY: A
  :PROPERTY+: B

is meant to be an equivalent for

  :PROPERTY: A B

Introducing newline characters would break this expectation.


Regards,

-- 
Nicolas Goaziou