Re: LaTeX export > Avoid \newline command after timestampsX-Draft-From: ("nnimap+mc:INBOX.sncb")

From: Francesco Pizzolante <fpz-djc/iPCCuDYQheJpep6IedvLeJWuRmrY@public.gmane.org>
To: David Maus <dmaus-lYycHbxpNtazQB+pC5nmwQ@public.gmane.org>
Cc: mailing-list-org-mode
	<emacs-orgmode-mXXj517/zsQ@public.gmane.org>,
	Carsten Dominik
	<carsten.dominik-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: LaTeX export > Avoid \newline command after timestampsX-Draft-From: ("nnimap+mc:INBOX.sncb")
Date: Thu, 18 Mar 2010 14:54:56 +0100	[thread overview]
Message-ID: <871vfhspjj.fsf@mundaneum.com> (raw)
In-Reply-To: <87y6hpkg4f.wl%dmaus-lYycHbxpNtazQB+pC5nmwQ@public.gmane.org> (David Maus's message of "Thu, 18 Mar 2010 12:45:36 +0100")

Hi David,

David Maus wrote:
> Took me a while to realize the problem with current implementation: If
> you already have a blank line between scheduled/deadline line and the
> content the newline forces extra spacing between scheduled/deadline
> and the following paragraph.

I'm sorry if I wasn't clear enough.

> This cleary /is/ problem.  Maybe we should catch these two cases
> (patch attached):
>
> ,----
> | (unless (and (looking-at ".*\n[ \t]*\n") (looking-at ".*\\\\newline[ \t]*$"))
> `----
>
> Insert \newline only if there is no paragraph separator.  As far as I
> can see the LaTeX code is already rendered when
> `org-export-latex-keywords' is called so this should work out.

I tried your patch, but I still get extra \newline commands in the generated
LaTeX.

Let's go back to examples, I think it will be easier to understand my problem.

1) Heading with no text

--8<---------------cut here---------------start------------->8---
** STARTED  First
   SCHEDULED: <2010-03-01 Mon> DEADLINE: <2010-03-19 Fri>
--8<---------------cut here---------------end--------------->8---

Gives the following:

--8<---------------cut here---------------start------------->8---
\subsection{\textbf{STARTED} First}
\label{sec-1.1}

   \texttt{SCHEDULED:} \textit{2010-03-01 Mon} \texttt{DEADLINE:} \textit{2010-03-19 Fri}\newline
--8<---------------cut here---------------end--------------->8---

Which gives me an extra vertical space between this heading and the next one.

While I would expect this (with or without the extra blank line in this case,
as there's no text after):

--8<---------------cut here---------------start------------->8---
\subsection{\textbf{STARTED} First}
\label{sec-1.1}

   \texttt{SCHEDULED:} \textit{2010-03-01 Mon} \texttt{DEADLINE:} \textit{2010-03-19 Fri}

--8<---------------cut here---------------end--------------->8---

2) Heading with text and no blank line between heading and text

--8<---------------cut here---------------start------------->8---
** STARTED  Second
   SCHEDULED: <2010-03-01 Mon> DEADLINE: <2010-03-19 Fri>
   This task is split among all services and communication between the
   entities.
--8<---------------cut here---------------end--------------->8---

This gives the following:

--8<---------------cut here---------------start------------->8---
\subsection{\textbf{STARTED} Second}
\label{sec-1.2}

   \texttt{SCHEDULED:} \textit{2010-03-01 Mon} \texttt{DEADLINE:} \textit{2010-03-19 Fri}\newline\newline
   This task is split among all services and communication between the
   entities.
--8<---------------cut here---------------end--------------->8---

I also get an extra vertical space between the timestamps and the text which
is on a new paragraph.

Instead, I was expecting this:

--8<---------------cut here---------------start------------->8---
\subsection{\textbf{STARTED} Second}
\label{sec-1.2}

   \texttt{SCHEDULED:} \textit{2010-03-01 Mon} \texttt{DEADLINE:} \textit{2010-03-19 Fri}

   This task is split among all services and communication between the
   entities.
--8<---------------cut here---------------end--------------->8---

3) Heading with text and blank line between heading and text

--8<---------------cut here---------------start------------->8---
** DONE Third
   DEADLINE: <2010-03-26 Fri>

   This task is split among all services and communication between the
   entities.
   Second paragraph.

   fdqsfdq
--8<---------------cut here---------------end--------------->8---

This gives the following:

--8<---------------cut here---------------start------------->8---
\subsection{\textbf{DONE} Third}
\label{sec-1.3}

   \texttt{DEADLINE:} \textit{2010-03-26 Fri}\newline

   This task is split among all services and communication between the
   entities.
   Second paragraph.

   fdqsfdq
--8<---------------cut here---------------end--------------->8---

In this case, again, I get an extra vertical space between the timestamps and
the text which is also in a new paragraph.

Instead, I would simply expect this:

--8<---------------cut here---------------start------------->8---
\subsection{\textbf{DONE} Third}
\label{sec-1.3}

   \texttt{DEADLINE:} \textit{2010-03-26 Fri}

   This task is split among all services and communication between the
   entities.
   Second paragraph.

   fdqsfdq
--8<---------------cut here---------------end--------------->8---

As you can see from these 3 examples, it is safer to always generate blank
lines only instead of \newline commands.

Sorry for the length of this message.

I hope, the problem is clearer now.

Please let me know what you think.

Francesco

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