From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rafael <rvf0068@gmail.com>
Subject: Re: Change key binding in math mode only
Date: Tue, 04 Mar 2014 17:11:41 -0600
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Rafael <rvf0068@gmail.com> writes:

> I have been writing presentations in org-mode lately with a lot of math
> content. I am using org-cdlatex, and have already customized it to, say,
> type R'B inside math mode to obtain \mathbb{R}. I wonder, however, if it
> would be possible to make this procedure shorter, and obtain \mathbb{R}
> as soon as pressing R, *but only inside math mode*. 
>
> I guess I could approximate this with abbrevs or yasnippet, but I think
> this would require an extra key besides the R, which is closer to what I
> already have. 

I remembered that Org knows already if point is inside a math
expression, so by looking at the source I came up with the following,
that seems to work. Sorry for the noise.

#+BEGIN_SRC emacs-lisp
   (defun org-cdlatex-real-numbers ()
     (interactive)
     (if (org-inside-LaTeX-fragment-p)
         (insert "\\mathbb{R}")
       (insert "R")
       ))
   
   (add-hook 'org-mode-hook
             (lambda ()
               (local-set-key (kbd "R")
                              'org-cdlatex-real-numbers
                              )))
#+END_SRC