From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rasmus <rasmus@gmx.us>
Subject: Re: Bug: Beamer export error
Date: Wed, 09 Aug 2017 17:54:02 +0200
Message-ID: <87tw1gag9x.fsf@gmx.us>
References: <87poc5t27q.fsf@iki.fi>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:56297)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1dfTJU-0005VE-U5
	for emacs-orgmode@gnu.org; Wed, 09 Aug 2017 11:54:30 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1dfTJQ-0002c3-VD
	for emacs-orgmode@gnu.org; Wed, 09 Aug 2017 11:54:28 -0400
Received: from [195.159.176.226] (port=54671 helo=blaine.gmane.org)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <geo-emacs-orgmode@m.gmane.org>)
	id 1dfTJQ-0002aI-Oy
	for emacs-orgmode@gnu.org; Wed, 09 Aug 2017 11:54:24 -0400
Received: from list by blaine.gmane.org with local (Exim 4.84_2)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1dfTJC-0003bq-Ne
	for emacs-orgmode@gnu.org; Wed, 09 Aug 2017 17:54:10 +0200
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode/>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: "Emacs-orgmode"
	<emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
To: emacs-orgmode@gnu.org
Cc: mail@nicolasgoaziou.fr

Hi Jarmo,

Thanks for your report.

Jarmo Hurri <jarmo.hurri@iki.fi> writes:

> I get an error (pdflatex hangs up) when trying to Beamer export the
> following simple Org file (key command C-c C-e l O).
>
> # -----------------------------------------------------------------
>
> #+STARTUP: beamer
>
> * This is a simple test
>   - let us see what happens
> # -----------------------------------------------------------------
>
> I have traced the issue to the extra comma in the following line in the
> exported TeX file:
>
> \begin{frame}[,label={sec:org03f80c8}]{This is a simple test}
>
> If you remove the extra comma, then the file compiles just fine.

This is caused by this commit, which changes how org-split-string works.

    f776e65373fa135fffb51e201698823fbfb3865b

Before (org-split-string "" ",") would return ‘nil’.  Now it returns "".

Depending on whether the new behavior is desired or not, the fix should
either be in ‘org-split-string’ or in ‘org-beamer--format-frame’.  I’ll
wait for Nicolas’ verdict.

For now, if necessary, you can hot-patch the function in ox-beamer.el to
something like,

    (options (cl-remove-if-not 'org-string-nw-p (append ...)))

Rasmus

-- 
Vote for proprietary math!