[Orgmode] Re: [BABEL] "unset" :var definitions for subtree

[Dan Davison]

[...]
>> 2. It should be possible somehow to include the options together with
>>    the shebang, or to replace :shebang with a more general "preamble"
>>    concept. Or to make :shebang accept a code block as its value.
>> 
>> --------------------------------------------
>> #+BABEL: :var A=13
>> #+BABEL: :var B=14
>> 
>> #+header: :shebang #!/bin/bash #$ -cwd
>> #+begin_src sh :tangle script.sh
>> # empty
>> #+end_src
>> --------------------------------------------
>
> Similar to above - should work, but now the options for torque are
> hidden in the shebang - which is not to nice, but should work - although
> changing the options is not nearly as nice as if the options are in the
> source block.

It seems that we should be able to put the preamble lines in a src
block. This works, but only after making an alteration to the sbe
function (below) so that it will allow multiple line results. Maybe Eric
will have some ideas here.

---------------------------------------
#+BABEL: :var A=13
#+BABEL: :var B=14

#+srcname: sheb
#+begin_src sh :results output
echo '#!/bin/bash'
echo '#$ -cwd'
#+end_src

#+header: :shebang (sbe sheb)
#+begin_src sh :tangle script.sh
# empty
#+end_src
---------------------------------------


       (setq source-block (symbol-name source-block)))
-    (org-babel-table-truncate-at-newline ;; org-table cells can't be multi-line
      (if (and source-block (> (length source-block) 0))
          (let ((params
                 (eval `(org-babel-parse-header-arguments
@@ -116,7 +115,7 @@ example above."
                                 ")")))))
            (org-babel-execute-src-block
             nil (list "emacs-lisp" "results" params) '((:results . "silent"))))
-       ""))))
+       "")))


Dan