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From: Dirk Scharff <dirk.scharff@googlemail.com>
To: Org mailing list <emacs-orgmode@gnu.org>
Subject: Need control over insertion point of variables in code blocks
Date: Fri, 22 Jul 2011 09:22:36 +0200	[thread overview]
Message-ID: <A6014528-2B3B-4B8C-96D6-47BB46A3AB21@googlemail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 1112 bytes --]

Hi

i just noticed that variables are assigned in the top of the exported code. That can be problematic in some situations:

#+source: the_test
#+begin_src python :var x=3 :tangle test.py :results output
from __future__ import division
print x
#+end_src


tangling results in:

x=3
from __future__ import division
print x

The problem with the result is simple: 
SyntaxError: from __future__ imports must occur at the beginning of the file

To export this correctly I'd need the possibility to tell org-mode where the variables are supposed to be inserted. Is there a way to do this? I didn't find a keyword for this in the documentation. 

A second problem I have at the moment lies with the execution of source-blocks in tables. What I'd like to do:

| argument | result |
|        1 | #ERROR |
|          |        |
#+TBLFM: $2=call_the_test(x=$<)

I guess I'm just doing something wrong here. Executing the #+Tblfm results in the error: "reference $< not found in buffer". How do I do the reference correctly in this case? 

You can test both cases in the attached org-file. 

[-- Attachment #2: testing.org --]
[-- Type: application/octet-stream, Size: 228 bytes --]

#+source: the_test
#+begin_src python :var x=3 :tangle test.py :results output
from __future__ import division
print x
#+end_src

| argument | result |
|        1 | #ERROR |
|          |        |
#+TBLFM: $2=call_the_test(x=$<)

[-- Attachment #3: Type: text/plain, Size: 3 bytes --]

next             reply	other threads:[~2011-07-22  7:22 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-22  7:22 Dirk Scharff [this message]
2011-07-22  7:34 ` Need control over insertion point of variables in code blocks Rainer M Krug
2011-07-22  7:55   ` Dirk Scharff
2011-07-22  8:02     ` Rainer M Krug
     [not found] ` <87aac6u0rk.fsf@gnu.org>
2011-07-22  9:36   ` Dirk Scharff
2011-07-22 13:32     ` Bastien

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