[O] Hang on incomplete input

[Ken Williams]

Apparently, org-mode Babel (or maybe Emacs, or ESS) will hang when given 
incomplete input, like the following:

#+begin_src R
ddply(x,
#+end_src

I was just tearing my hair out trying to figure out why my code was hanging, 
because of course it's much longer and I didn't notice the missing paren.

Is this replicable on other people's platforms too?  I'm using GNU Emacs on 
Windows, with org-mode 7.7 and ESS 5.14.

There are other situations where I really wish org-mode (or Emacs, or ESS) 
didn't freeze up while evaluating R code - for example if I accidentally did 
'debug()' on a function that's now being called, or even just on long-running 
calculations.  Any chance evaluation could be done in a separate thread or 
something?

Thanks.

--
Ken Williams, Senior Research Scientist
WindLogics
http://windlogics.com


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