Re: Re: [Orgmode] Two questions about using a =#+begin_src emacs-lisp= block

[chris . m . malone]

On Feb 22, 2011 1:06pm, Eric Schulte <address@hidden> wrote:
> Chris Malone address@hidden> writes:
> 
> 
> 
> > Ok, this is still perplexing me, as I have a new version from git and I
> 
> > still get the error.  The following is complete list (sorry for the long
> 
> > email!) of what I have done:
> 
> >
> 
> > * Get a fresh copy of =org-mode= from git and byte-compile:
> 
> >
> 
> > #+begin_src: sh
> 
> >   cd ~/install/org-mode
> 
> >   mkdir new_git_clone
> 
> >   cd new_git_clone
> 
> >   git clone git://orgmode.org/org-mode.git
> 
> >   cd org-mode; make &> make.out
> 
> >   ln -s ~/install/org-mode/new_git_clone/org-mode ~/install/org-mode/current
> 
> > #+end_src
> 
> >
> 
> 
> 
> if you are worried that you don't have the correct version of Org-mode
> 
> installed you can check the output of the `org-version' function.  Mine
> 
> reads
> 
> 
> 
> "Org-mode version 7.4 (release_7.4.510.g1e35)"
> 
> 

RIght - I was worried that I had possibly changed a lisp file that could be causing the error, so I wanted a fresh copy.
> 
> >
> 
> > During the =make= process, I noticed quite a few warnings.  An example is
> 
> > below (for a complete copy of =make.out=, see
> 
> > http://astro.sunysb.edu/cmalone/nolink/make.out
> 
> [...]
> 
> > Are such warnings normal?
> 
> >
> 
> 
> 
> yes, these are normal compiler warnings which are generally cleaned up
> 
> before releases but shouldn't have any negative impact on the behavior
> 
> of Org-mode
> 
> 

Ok, good to know.

> 
> >
> 
> > * Make sure my =.emacs= file is pointing to the correct location
> 
> > Here is a copy of the =org-mode=-relevant sections of my =.emacs= file:
> 
> >
> 
> [...]
> 
> >
> 
> > * Attempt an export of the =org-mode= file found here:
> 
> > http://astro.sunysb.edu/cmalone/nolink/python_class_lstings.org
> 
> >
> 
> 
> 
> One thing to note here, is that for your emacs-lisp block to work on
> 
> export, you need to change this
> 
> 
> 
> #+begin_src emacs-lisp :exports both
> 
>   (buffer-file-name)
> 
> #+end_src
> 
> 
> 
> to this
> 
> 
> 
> #+begin_src emacs-lisp :var file-name=(buffer-file-name) :exports both
> 
>   file-name
> 
> #+end_src
> 
> 
> 
> because only header arguments are guaranteed to be evaluated in the
> 
> original org-mode buffer during export.
> 
> 

Again, thanks for pointing this out earlier.  I hadn't changed it for the example, because the error was not associated with whether or not the actual =emacs-lisp= code returned anything meaningful.


> 
> That said I was able to export your example file (without the change
> 
> above) to html.  When exporting to latex I ran into an issue, the
> 
> problem here is that the LaTeX exporter *requires* at least one
> 
> headline.  It explicitly export the pre-first-headline and
> 
> post-first-headline portions of the Org-mode buffer separately.  When
> 
> there is no headline, and the buffer contains code blocks, then they are
> 
> exported *twice*, which causes the error you mentioned, because after
> 
> the first pass of the code-block export, the results in the file are not
> 
> valid for another pass of the exporter.
> 
> 
> 
> If you place a "* " before the "Let's start this..." line, then the
> 
> errors should disappear.
> 
> 
> 
> Hope this helps.
> 
> 
> 
> Best -- Eric
> 
That fixed it!  Sorry for the trouble for something that seems so minor!  Thanks again.

Chris