Rainer M Krug <Rainer@krugs.de> writes:

> Hi
>
> Following a recent discussion (based on me forgetting a ":" when setting
> the property :header-args), I added the output of the property
> header-args to the output of org-babel-get-src-block-info to make
> debugging easier. Before the function resulted in the following output
> (using my faulty code block):
>
> ,----
> | Lang: R
> | Header Arguments:
> | 	:cache		no
> | 	:exports	both
> | 	:hlines		no
> | 	:noweb		no
> | 	:results	code exports output replace
> | 	:session	somename
> | 	:tangle		no
> | 
> `----
>
> One only saw that the property :results was not correct but not where it
> came from.
>
> Using the patched version, one gets the following:
>
> ,----
> | Lang: R
> | Properties:
> | 	:header-args 	:exports both :results output exports code
> | 	:header-args:R 	:session somename
> | Header Arguments:
> | 	:cache		no
> | 	:exports	both
> | 	:hlines		no
> | 	:noweb		no
> | 	:results	code exports output replace
> | 	:session	somename
> | 	:tangle		no
> `----
>
> Here one can clearly see that the property :header-args is not set
> correctly and can easily trace it down in the original org file.
>
> Also, actually seeing the property :header-args makes it easier to
> understand the whole inheritance of header arguments and how header-args
> and header-args+ interact. 
>
> The same applir=es to the property :header-args:R (or any language
> specific header-args:language property)
>
> Cheers,
>
> Rainer
>
>
> Here is again the faulty org file which lead to the patch:
>
> #+PROPERTY: header-args:R :session somename
> #+PROPERTY: header-args :exports both
> #+PROPERTY: header-args+ :results output
> * The bug
> This file create an (possibly endless?) loop during export
> * here exports both
> #+begin_src R 
> cat(13+14)
> #+end_src
>
> * and here only code
> :PROPERTIES:
> :header-args+: exports code
> :END:
> #+begin_src R 
> paste(13+14)
> #+end_src
> diff --git a/lisp/ob-core.el b/lisp/ob-core.el
> index ceda1aa..94a07f6 100644
> --- a/lisp/ob-core.el
> +++ b/lisp/ob-core.el
> @@ -409,6 +409,10 @@ a window into the `org-babel-get-src-block-info' function."
>  	      (header-args (nth 2 info)))
>  	  (when name            (funcall printf "Name: %s\n"     name))
>  	  (when lang            (funcall printf "Lang: %s\n"     lang))
> +	  (funcall printf "Properties:\n")
> +	  (funcall printf "\t:header-args \t%s\n" (org-entry-get (point) "header-args" t))
> +	  (funcall printf "\t:header-args:%s \t%s\n" lang (org-entry-get (point) (concat "header-args:" lang) t))
> +
>  	  (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
>  	  (funcall printf "Header Arguments:\n")
>  	  (dolist (pair (sort header-args

-- 
Rainer M. Krug
email: Rainer<at>krugs<dot>de
PGP: 0x0F52F982