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 19:49:01 +0200
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Rasmus <rasmus@gmx.us> writes:
> #+begin_src emacs-lisp
>   (defun rasmus/condtionally-remove-label (headline backend info)
>     "condtionally remove label"
>     (if (and 
>          (org-export-derived-backend-p backend 'beamer)
>          (string-match "[.*?allowframebreaks.*?]" headline))
>         (replace-regexp-in-string ",? ?label=[-sec0-9]+" "" headline)
>       headline))
>   
>   (add-to-list 'org-export-filter-headline-functions 
>                'rasmus/condtionally-remove-label)
> #+end_src


That's pretty unstable, it turns out.  Headlines encompass more in
ox-beamer than how I remember them from ox-latex.  Here's a better one
as long as you don't use newlines ("\n") in your headings.  Are '\\'
stil used for denoting subtitles in ox-beamer?

* test 
   :PROPERTIES:
   :BEAMER_opt: allowframebreaks
   :END:  
  horses like allowframebreaks 

* on allowframebreaks
  cows

#+begin_src emacs-lisp
  (defun rasmus/condtionally-remove-label (headline backend info)
    "condtionally remove label"
    (let* ((h (string-match "\n" headline))
           (head (substring headline 0 h)))
      (if (and 
           (org-export-derived-backend-p backend 'beamer)
           (string-match "\\[.*?allowframebreaks.*?\\].*?" head))
          (concat (replace-regexp-in-string ",? ?label=[-sec0-9]+" "" head) 
                  "\n" (substring headline (1+ h)))
        headline)))

  (add-to-list 'org-export-filter-headline-functions 
               'rasmus/condtionally-remove-label)
#+end_src

–Rasmus

-- 
The Kids call him Billy the Saint