On Thu, Sep 18 2008, Carsten Dominik wrote:

> These regular expressions are incorrect. \\s- is the way to denote
> whitespace.  However, since that also includes newlines, I prefer to
> write "[ \t]" in such cases.

Carsten--

Thanks for the tip.  I now to get dumped into r-mode correctly when I
hit C-c ' inside the regions defined in the attached patch.  There's one
annoying quirk left, though.

When coming out of r-mode by hitting C-c ' in the Org Edit Src Example
buffer, the line that ends the example (#+latex:  \end{Scode}) is
concatenated to the last line of the source code, regardless of how many
new lines are included at the end of the source code in the temporary
buffer.

   #+latex: \begin{Scode}
   a <- 3
   #+latex: \end{Scode}

goes to

   #+latex: \begin{Scode}
   a <- 3#+latex: \end{Scode}

Any suggestions on how to preserve the formatting of the end marker?

Thanks,
/au