Re: Bug in babel eating my text

[Nick Dokos <nicholas.dokos@hp.com>]

Andreas Leha <andreas.leha@med.uni-goettingen.de> wrote:

> I found a severe bug that actually eats my text, i.e. *destroys* my
> org-mode file.
> 
> Or am I missing something here?
> 
> Just try that:
> 
> * Test
> 
>   Execute this once:
>   #+BEGIN_src R :session test :results output silent :exports none
>     devnull <- library("tikzDevice")
>   #+END_src
>  
>   Execute this twice or more... but be careful
>   #+BEGIN_src R :session test :results output latex :exports results
>     tikz(console=TRUE, width=4, height=4)
>     plot(1:2,1:2)
>     devnull <- dev.off()
>   #+END_src
> 
> * Watch me die :-(
> 

I can reproduce this: it seems to be eating one character each time it is
executed at the end of the #+END_LaTeX. Here's a patch that seems to fix
this problem - however, it is not based on any real understanding of the code,
so take it with a grain of salt. Also, if this fix works, then it is likely
that the other "wrap" cases will also need similar treatment:

diff --git a/lisp/ob.el b/lisp/ob.el
index 82625c0..2ce57ca 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -1500,7 +1500,7 @@ code ---- the results are extracted in the syntax of the source
 	   ((member "html" result-params)
 	    (wrap "#+BEGIN_HTML\n" "#+END_HTML"))
 	   ((member "latex" result-params)
-	    (wrap "#+BEGIN_LaTeX\n" "#+END_LaTeX"))
+	    (wrap "#+BEGIN_LaTeX\n" "#+END_LaTeX\n"))
 	   ((member "code" result-params)
 	    (wrap (format "#+BEGIN_SRC %s%s\n" (or lang "none") results-switches)
 		  "#+END_SRC"))

HTH,
Nick