Re: [O] var expansion on tangling only once per file

[Olaf.Hamann]

Am 12.04.2012 09:41, schrieb Rainer M Krug:
> On 11/04/12 16:15, Eric Schulte wrote:
> > Would it be possible to simply only declare the variable in a header argument 
> > applying to the
> > first code block?  Using a session would keep that variables state through all 
> > subsequent code
> > blocks.
>
> Would work - but as I said above, I would have preferred to have the variable 
> defined at the top
> of the buffer. I could use though the no-expand header argument for the source 
> blocks. At the moment,

What about :

#+NAME var-as-literal-block
#+BEGIN_EXAMPLE
99
#+END_EXAMPLE


#+begin_src ...  :var TheVar=var-as-literal-block
...using TheVar in code
#+end_src

----------------------------
I would prefer using Macros in this case :

#+MACRO: TheVar 99

#+begin_src ... :var TheVar={{{TheVar}}}
...using TheVar in code
#+end_src


But looks like that macros do not expand in src_block header arguments.

Regards, Olaf