How to prevent tabs from turning into spaces in source-code export?

How to prevent tabs from turning into spaces in source-code export?

[James Harkins]

I have (where <TAB> is a tab character):

#+BEGIN_SRC {}
// SuperCollider code here

(
r = p.chan.play(Pspawner { |sp|
<TAB>var num, subdiv,
...
});
)
#+END_SRC

The exported .tex file contains:

\begin{lstlisting}
// SuperCollider code here

(
r = p.chan.play(Pspawner { |sp|
<spc><spc><spc><spc><spc><spc><spc><spc>var num, subdiv,
...
});
)
\end{lstlisting}

I do not want this conversion to happen. If it doesn't happen, then I
can use listings' tabsize property to control the tab width.

Failing that, how do I tell org to use fewer than 8 spaces? The tabs
are much much too wide in the resulting pdf.

hjh

Re: How to prevent tabs from turning into spaces in source-code export?

[Nicolas Goaziou]

Hello,

James Harkins <jamshark70@gmail.com> writes:

> I have (where <TAB> is a tab character):
>
> #+BEGIN_SRC {}
> // SuperCollider code here
>
> (
> r = p.chan.play(Pspawner { |sp|
> <TAB>var num, subdiv,
> ...
> });
> )
> #+END_SRC
>
> The exported .tex file contains:
>
> \begin{lstlisting}
> // SuperCollider code here
>
> (
> r = p.chan.play(Pspawner { |sp|
> <spc><spc><spc><spc><spc><spc><spc><spc>var num, subdiv,
> ...
> });
> )
> \end{lstlisting}
>
> I do not want this conversion to happen. If it doesn't happen, then I
> can use listings' tabsize property to control the tab width.

Try to preserve indentation:

  #+begin_src {} -i
  ...
  #+end_src


Regards,

-- 
Nicolas Goaziou

Re: How to prevent tabs from turning into spaces in source-code export?

[Andreas Röhler]

Am 30.05.2013 15:22, schrieb Nicolas Goaziou:
> Hello,
>
> James Harkins <jamshark70@gmail.com> writes:
>
>> I have (where <TAB> is a tab character):
>>
>> #+BEGIN_SRC {}
>> // SuperCollider code here
>>
>> (
>> r = p.chan.play(Pspawner { |sp|
>> <TAB>var num, subdiv,
>> ...
>> });
>> )
>> #+END_SRC
>>
>> The exported .tex file contains:
>>
>> \begin{lstlisting}
>> // SuperCollider code here
>>
>> (
>> r = p.chan.play(Pspawner { |sp|
>> <spc><spc><spc><spc><spc><spc><spc><spc>var num, subdiv,
>> ...
>> });
>> )
>> \end{lstlisting}
>>
>> I do not want this conversion to happen. If it doesn't happen, then I
>> can use listings' tabsize property to control the tab width.
>
> Try to preserve indentation:
>
>    #+begin_src {} -i
>    ...
>    #+end_src
>
>
> Regards,
>

Hi Nicolas,

as indentation might be provided by TAB and whitespace chars likewise, what about following setting of `indent-tabs-mode'?

Best,

Andreas

Re: How to prevent tabs from turning into spaces in source-code export?

[Nicolas Goaziou]

Hello,

Andreas Röhler <andreas.roehler@easy-emacs.de> writes:

> as indentation might be provided by TAB and whitespace chars likewise,
> what about following setting of `indent-tabs-mode'?

It is indeed possible to propagate `indent-tabs-mode' value to the
original buffer's copy where export happens, but it will not be enough
to guaranty that indentation related TAB characters are preserved (e.g.,
if relative indentation falls below `tab-width' value although global
one was above).

The only way to make sure TAB will be preserved is to set
`org-src-preserve-indentation' to a non-nil value (or, locally, to use
"-i" switch).


Regards,

-- 
Nicolas Goaziou