(Maybe) enhance `org-element-src-block-interpreter'?

[Thorsten Jolitz <tjolitz@gmail.com>]

Hi, 

a slight enhancement:

#+begin_src emacs-lisp
  (defun tj/src-block-interpreter (src-block contents)
    "Interpret SRC-BLOCK element as Org syntax.  CONTENTS is nil."
    (let ((lang (org-element-property :language src-block))
          (switches (org-element-property :switches src-block))
          (params (org-element-property :parameters src-block))
          (headers (org-element-property :header src-block))
          (value
           (let ((val (org-element-property :value src-block)))
             (cond
              ((or org-src-preserve-indentation
                   (org-element-property :preserve-indent src-block))
               val)
              ((zerop org-edit-src-content-indentation) val)
              (t
               (let ((ind (make-string
                           org-edit-src-content-indentation ?\s)))
                 (replace-regexp-in-string
                  "\\(^\\)[ \t]*\\S-" ind val nil nil 1))))))
          packed-headers)
      (concat (format "%s#+BEGIN_SRC%s\n"
                      (progn
                        (while headers
                          (setq packed-headers
                                (concat
                                 (format "#+HEADER: %s\n"
                                         (pop headers))
                                 packed-headers)))
                        (or packed-headers ""))
                      (concat (and lang (concat " " lang))
                              (and switches (concat " " switches))
                              (and params (concat " " params))))
              (org-escape-code-in-string value)
              ;; (save-match-data
              ;;   (if (looking-at "^$") "" "\n"))
              "#+END_SRC")))
#+end_src

#+results:
: tj/src-block-interpreter

Parse this src-block (with point at beg of block):

,----
| M-: (setq ptree (org-element-at-point))
`----

#+header: :results raw
#+begin_src emacs-lisp
(message "hello world")
#+end_src

#+results:
hello world

Then evaluate

#+begin_src emacs-lisp
(org-element-src-block-interpreter ptree nil)
#+end_src

#+results:
: #+BEGIN_SRC emacs-lisp
:   (message "hello world")
: #+END_SRC

#+begin_src emacs-lisp
(tj/src-block-interpreter ptree nil)
#+end_src

#+results:
: #+HEADER: :results raw
: #+BEGIN_SRC emacs-lisp
:   (message "hello world")
: #+END_SRC


-- 
cheers,
Thorsten