From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daimrod <daimrod@gmail.com>
Subject: org-babel-execute-src-block deletes its src block.
Date: Sat, 03 Mar 2012 10:19:39 +0100
Message-ID: <87linif3dg.fsf@gmail.com>
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Hi, I've recently switched from Org 7.4 to the master branch on the git
repository, and I've encountered this weird situation.

  #+name: foo
  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp

If I evaluate this block I get:

  #+name: foo
=42
=emacs-lisp

Though it works as expected if I remove the name:

  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp
=>
  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp

  #+RESULTS:
  : 42

I've tried to figure out what was the problem and it lies in the regexp
org-babel-src-name-w-name-regexp.

So far I've found those workarounds:

No spaces after the ':'

  #+name:foo
  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp
=>
  #+name:foo
  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp

  #+RESULTS: foo
  : 42

Add parentheses after the name.

  #+name: foo()
  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp
=>
  #+name: foo()
  #+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp

  #+RESULTS: foo
  : 42

No spaces before the src block

  #+name: foo
#+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp
=>
  #+name: foo
#+begin_src emacs-lisp 
    (defun foo ()
      42)
    (foo)
  #+end_src emacs-lisp

#+RESULTS: foo
: 42