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

[Carsten Dominik <carsten.dominik@gmail.com>]

On Mar 18, 2010, at 2:54 PM, Francesco Pizzolante wrote:

> 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.

On the contrary, thank you for this long message.  This is exactly  
what nails
the discussion and shows the problems.

I agree with what I think is the conclusion of this discussion:  No  
\newline,
only an empty line to star a new paragraph, in all three example cases.

I have made this change now, thank you both.

- Carsten