On Tue, Apr 9, 2013 at 5:28 PM, Samuel Wales <samologist@gmail.com> wrote:

> ASCII boxes for blocks might be more convenient for the
> reader if they do not have any characters to the left of the
> code.
>
> #+BEGIN_SRC emacs-lisp
>   (defun code-for-copy-and-paste ()
>     (makes newcomer use rectangle or unboxing commands :())
> #+END_SRC
>
> Maybe output like this instead:
>
> ,----------
> code
> `----------
>
>
I use message-mark-inserted-region to mark code in email:

--8<---------------cut here---------------start------------->8---
#+name: r-with-ggplot2
#+begin_src R :results output graphics :var tbl=foo :file foo-output.png
:width 400 :height 300
  library(ggplot2)
  res <- ggplot(tbl, aes(a_foo_var))
  res + geom_histogram(aes(y=..density..)) +
  geom_density(weight=2) + xlab("A foo variable")
#+end_src
--8<---------------cut here---------------end--------------->8---

That allows easy cut-and-paste. I use boxquote-region for documentation etc
that I don't expect the reader to cut and paste.

They are bound to C-c m and C-c q resp. using this initialization code:

--8<---------------cut here---------------start------------->8---
(define-key mode-specific-map [?q] 'boxquote-region)
(define-key mode-specific-map [?m] 'message-mark-inserted-region)
--8<---------------cut here---------------end--------------->8---

Nick