[O] preview latex fragment from source code buffer

[Sebastian Hofer]

I missed the functionality to preview a latex fragment directly from
the latex source buffer. Fortunately this functionality is trivial to
add. I've been using it for a while now and find it very convenient,
so I suggest adding it to org.

#+BEGIN_SRC 
(define-key org-src-mode-map "\C-c\C-x\C-l" 'org-edit-preview-latex-fragment)

(defun org-edit-preview-latex-fragment ()
  "Write latex fragment from source to parent buffer and preview it."
  (interactive)
  (org-src-in-org-buffer (org-preview-latex-fragment)))
#+END_SRC

Best regards
Sebastian