From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Bach <phaebz@gmail.com>
Subject: latex export subtree: org-latex-export-process
Date: Wed, 25 Sep 2013 18:35:21 +0200
Message-ID: <l1v3c0$prh$1@ger.gmane.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:59936)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1VOs3u-0005Zu-9I
	for emacs-orgmode@gnu.org; Wed, 25 Sep 2013 12:35:44 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1VOs3o-0005ZM-Bh
	for emacs-orgmode@gnu.org; Wed, 25 Sep 2013 12:35:38 -0400
Received: from plane.gmane.org ([80.91.229.3]:36653)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1VOs3o-0005ZD-4r
	for emacs-orgmode@gnu.org; Wed, 25 Sep 2013 12:35:32 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1VOs3m-0004lU-Dp
	for emacs-orgmode@gnu.org; Wed, 25 Sep 2013 18:35:30 +0200
Received: from 84-112-231-91.dynamic.surfer.at ([84.112.231.91])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Wed, 25 Sep 2013 18:35:30 +0200
Received: from phaebz by 84-112-231-91.dynamic.surfer.at with local (Gmexim
	0.1 (Debian)) id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Wed, 25 Sep 2013 18:35:30 +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-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: emacs-orgmode@gnu.org

Dear org-mode Users and Developers,

(org-mode v8.1) I use the following function for customizable latex
export processes
#+begin_src emacs-lisp
(defun my-auto-tex-cmd (backend)
  "When exporting from .org with latex,
  automatically run latex, pdflatex, or xelatex as appropriate,
  using latexmk."
  (let ((texcmd))
    (cond ((string-match "LATEX_CMD: pdflatex" (buffer-string))
           (setq texcmd "latexmk -pdflatex=pdflatex -pdf %f"))
          ((string-match "LATEX_CMD: pdflatex-shell-escape" (buffer-string))
           (setq texcmd "latexmk -pdflatex=pdflatex --shell-escape -pdf
%f"))
          ((string-match "LATEX_CMD: xelatex" (buffer-string))
           (setq texcmd "latexmk -pdflatex=xelatex -pdf %f"))
          (t (setq texcmd "latexmk -pdf %f"))
          )
    (setq org-latex-pdf-process (list texcmd))))
(add-hook 'org-export-before-processing-hook 'my-auto-tex-cmd)
#+end_src

which essentially uses an earlier idea[1].  Now this works well if I
export an .org buffer as a whole.  If I export a subtree, the
`buffer-string` only contains the subtree without the .org buffer
header, so the `string-match` always fails.

Any ideas on how to best integrate this function during a subtree
export?  Maybe inside a hook that is run before the subtree is narrowed
down?

Best Regards,
Michael

[1] http://lists.gnu.org/archive/html/emacs-orgmode/2010-10/msg00218.html