From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rasmus <rasmus@gmx.us>
Subject: Re: [bug] [exporter] Frame labels cause allowframebreaks option to
 fail
Date: Tue, 15 Oct 2013 19:21:42 +0200
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In-Reply-To: <87y55ueee0.fsf@pinto.chemeng.ucl.ac.uk> (Eric S. Fraga's message
	of "Tue, 15 Oct 2013 16:35:03 +0100")
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To: e.fraga@ucl.ac.uk
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Eric S Fraga <e.fraga@ucl.ac.uk> writes:

> Hello,
>
> technically, I guess this is a bug in beamer and not in org's
> exporter.  However, if I specify the =3Dallowframebreaks=3D option for a
> frame, the exporter generates the following LaTeX code on beamer export:
>
>   \begin{frame}[allowframebreaks,label=3Dsec-1-1-1]{Some definitions}

Interesting (I can reproduce here).  Perhaps you should fill a bug
report:

        https://bitbucket.org/rivanvx/beamer/wiki/Home

(I couldn't find any references to this problem, but I didn't look
very hard)

> The "label=3Dsec-1-1-1" seems to make beamer ignore the allowframebreaks
> option.  If I remove the label=3D directive from the options, everything
> works fine.  Otherwise, the frame contents to not break over multiple
> frames.



> The question is: how can I tell the exporter to *not* generate label=3D
> directives?  I have no need for these and, at the moment, I am having to
> edit the LaTeX source to get my slides done.

>From a quick skim through ox-beamer I don't think you can disable it.
I don't know that it generally makes sense to do this.

You could use a regexp filter.  Perhaps
org-export-filter-headline-functions like this quick-and-dirty
solution.

* test=20
   :PROPERTIES:
   :BEAMER_opt: allowframebreaks
   :END:=20=20
  hest
=20=20

#+begin_src emacs-lisp
  (defun rasmus/condtionally-remove-label (headline backend info)
    "condtionally remove label"
    (if (and=20
         (org-export-derived-backend-p backend 'beamer)
         (string-match "[.*?allowframebreaks.*?]" headline))
        (replace-regexp-in-string ",? ?label=3D[-sec0-9]+" "" headline)
      headline))
=20=20
  (add-to-list 'org-export-filter-headline-functions=20
               'rasmus/condtionally-remove-label)
#+end_src





--=20
El Rey ha muerto. =C2=A1Larga vida al Rey!