From: "Sebastien Vauban" <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org>
To: emacs-orgmode-mXXj517/zsQ@public.gmane.org
Subject: Re: [Babel] Padlines
Date: Mon, 23 Sep 2013 09:31:20 +0200 [thread overview]
Message-ID: <86hadcdmev.fsf@somewhere.org> (raw)
In-Reply-To: 87siwz5gml.fsf@gmail.com
Hi Eric,
Eric Schulte wrote:
> "Sebastien Vauban" <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org> writes:
>> Eric Schulte wrote:
>>> aditya siram <aditya.siram-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>>>> What's the rationale for having padlines by default in tangled source? It
>>>> generates wrong programs for languages where whitespace is significant
>>>> (Haskell) and, for me, doesn't noticeably improve the look of the tangled
>>>> file in cases where it isn't.
>>>
>>> It is possible to change the value of default header arguments on a
>>> per-language basis because e.g., while (:padlines "yes") may make sense
>>> for sh, it probably doesn't for Haskell.
>>
>> Could it be possible that ":padline yes" does not insert a blank line in front
>> of the very first block, only *between* all blocks?
>
> I just pushed up a commit which implements this behavior. See the
> attached file for an example.
>
> #+Title: Examples with the new padline behavior
>
> #+headers: :tangle pad-yes-with-shebang.sed
> #+headers: :shebang "#!/bin/sed -f"
> #+headers: :padline "yes"
> #+begin_src sed
> 1 {N;s/\n//1}
> #+end_src
>
> #+headers: :tangle pad-no-with-shebang.sed
> #+headers: :shebang "#!/bin/sed -f"
> #+headers: :padline "no"
> #+begin_src sed
> 1 {N;s/\n//1}
> #+end_src
>
> #+headers: :tangle pad-yes-without-shebang.sed
> #+headers: :padline "yes"
> #+begin_src sed
> 1 {N;s/\n//1}
> #+end_src
> #+headers: :tangle pad-no-without-shebang.sed
> #+headers: :padline "no"
> #+begin_src sed
> 1 {N;s/\n//1}
> #+end_src
>
> 1. Tangle the above four blocks with =C-c C-v t=.
> 2. Execute the following code block to view the contents of the
> resulting sed files.
>
> #+begin_src sh :results scalar
> head pad*sed
> #+end_src
>
> #+RESULTS:
> : ==> padline-example.sed <==
> : #!/bin/sed -f
> :
> : 1 {N;s/\n//1}
> :
> : ==> pad-no-without-shebang.sed <==
> : 1 {N;s/\n//1}
> :
> : ==> pad-no-with-shebang.sed <==
> : #!/bin/sed -f
> : 1 {N;s/\n//1}
> :
> : ==> pad-yes-without-shebang.sed <==
> : 1 {N;s/\n//1}
> :
> : ==> pad-yes-with-shebang.sed <==
> : #!/bin/sed -f
> :
> : 1 {N;s/\n//1}
That seems perfect, and solves corner-cases I wouldn't have thought of (with
shebang). Thanks a lot!
Best regards,
Seb
--
Sebastien Vauban
next prev parent reply other threads:[~2013-09-23 7:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-17 22:36 [Babel] Padlines aditya siram
2013-09-18 7:32 ` Sebastien Vauban
2013-09-18 21:23 ` Eric Schulte
2013-09-18 22:02 ` Sebastien Vauban
2013-09-20 21:26 ` Eric Schulte
2013-09-23 7:31 ` Sebastien Vauban [this message]
[not found] ` <87siwz5gml.fsf-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-09-27 14:53 ` Sebastien Vauban
2013-09-28 12:17 ` Eric Schulte
2013-09-30 8:54 ` Sebastien Vauban
2013-10-01 10:28 ` Rainer M Krug
2013-10-01 11:59 ` Eric Schulte
2013-10-01 12:53 ` Rainer M Krug
2013-10-01 5:57 ` Vladimir Lomov
2013-10-01 11:59 ` Eric Schulte
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