Re: [O] Creating new org headers from code blocks

[Thorsten Jolitz]

Rainer M Krug <address@hidden> writes:

Hi,

> I have some R code which generates several graphics. I would now like to
> generate in R text which is then interpreted by org, upon export, as
> normal org code. Furthermore, I would like to create new org headers from
> the R code. Imagine I have the R code block below. Executed, I get the
> results below:
>
> --8<---------------cut here---------------start------------->8---
> * Some code block
> #+begin_src R :results raw :wrap :exports both
> c("** New header", "[[./graph1.pdf]]", "", "** and second header", "and some 
> text" )
> #+end_src
>
> #+RESULTS:
> #+BEGIN_RESULTS
> ,** New header
> [[./graph1.pdf]]
>
> ,** and second header
> and some text
> #+END_RESULTS
> --8<---------------cut here---------------end--------------->8---
>
> I can leave the :wrap, but then the results are not overwritten, but
> appended - otherwise it works as expected.
>
> How can I achieve that I get 
>
> ,----
> | ** New header
> | [[./graph1.pdf]]
> | 
> | ** and second header
> | and some text
> `----
>
> in the org file, but also that the result gets overwritten upon repeated
> execution?

I asked about this ':results raw' limitation before and was told to RTFM
;)

(although its not really on the page where I would look for it:
http://orgmode.org/manual/results.html).

You could look-up that thread in the mailing-list for some tips, and/or
use this on a temporary buffer-copy just before you want to act on the
raw results:

#+BEGIN_SRC emacs-lisp :results none
  (defvar tj/fixed-width-to-raw-langs '("R")
    "List of Babel langs for `tj/fixed-width-to-raw-results'.")

  (defun tj/fixed-width-to-raw-results ()
    "Call `org-toggle-fixed-width' on ':results pp'."
    (org-babel-map-src-blocks nil
      (and (member lang tj/toggle-fixed-width-src-block-langs)
           (member "pp" (split-string header-args " " t))
           (save-excursion
             (goto-char (org-babel-where-is-src-block-result))
             (forward-line)
             (while (org-in-fixed-width-region-p)
               (org-toggle-fixed-width)
               (forward-line))))))

#+END_SRC

#+begin_src R :results pp replace
 c("** New header2", "[[./graph1.pdf]]", "", "** and second header", "and some 
text" )
#+end_src

#+results:
: ** New header2
: [[./graph1.pdf]]
: 
: ** and second header
: and some text

-- 
cheers,
Thorsten