[PATCH] Re: Can't export LaTeX source code blocks

["Sebastien Vauban" <sva-news-D0wtAvR13HarG/iDocfnWg@public.gmane.org>]

"Sebastien Vauban" wrote:
> Thomas S. Dye wrote:
>> "Sebastien Vauban" writes:
>>
>>>>> The code block is NEVER exported. I don't understand why?
>>>>
>>>> I'm not sure either.
>>
>> I took a quick look at ob-latex.el. The code there sets `:exports
>> results' and then, IIUC, goes on its way without checking if :exports
>> has been set in the buffer.
>>
>> It looks to me like ob-latex.el would need to be revised.
>
> I don't have the impression that the error lies in `ob-latex' as the other
> `ob-LANG' files don't either make any special check -- while all graphics-only
> languages do, as well, have the default of "results" for ":exports".
>
> I have the impression the problem is to search in `ob-core'
> (`org-babel-execute-src-block') or `ob-exp'... But that's not yet clear to me
> where that could be.

I think I found it. That was a priority order problem for implementing the
hierarchy of header arguments inheritage in `ob-core'.

Best regards,
  Seb

From 3339c0f7d296fc68a206b0f69270da3a91025840 Mon Sep 17 00:00:00 2001
From: Sebastien Vauban <sva-news-4+nxiYgPiI0PTC0C9HXcdqsb+IOhx+da@public.gmane.org>
Date: Sat, 27 Apr 2013 11:40:25 +0200
Subject: [PATCH 2/2] Fix priority order for inheriting header arguments

* ob-core.el (org-babel-parse-src-block-match): Fix order of list of header
arguments.

---
 lisp/ob-core.el |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lisp/ob-core.el b/lisp/ob-core.el
index 9baff0c..73dca8f 100644
--- a/lisp/ob-core.el
+++ b/lisp/ob-core.el
@@ -1,6 +1,6 @@
 ;;; ob-core.el --- working with code blocks in org-mode
 
-;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
+;; Copyright (C) 2009-2013  Free Software Foundation, Inc.
 
 ;; Authors: Eric Schulte
 ;;	Dan Davison
@@ -1323,8 +1323,8 @@ may be specified in the properties of the current outline entry."
               (buffer-string)))
 	  (org-babel-merge-params
 	   org-babel-default-header-args
-           (org-babel-params-from-properties lang)
 	   (if (boundp lang-headers) (eval lang-headers) nil)
+           (org-babel-params-from-properties lang)
 	   (org-babel-parse-header-arguments
             (org-no-properties (or (match-string 4) ""))))
 	  switches
-- 
1.7.9

-- 
Sebastien Vauban