Re: org-babel-execute-src-block deletes its src block.

[Eric Schulte <eric.schulte@gmx.com>]

Nick Dokos <nicholas.dokos@hp.com> writes:

> Daimrod <daimrod@gmail.com> wrote:
>
>> 
>> 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
>
> Bug confirmed (but I didn't try all your workarounds, just the no spaces
> before the #+begin_src and no space after the colon in the #+name).
>

This was caused by a commit of mine yesterday, I've just pushed up a fix
and a protecting test case.

Thanks for catching,

-- 
Eric Schulte
http://cs.unm.edu/~eschulte/