ess-mode; suggestion for ess-eval-line-and-next-line

[Martin Maechler]

What do you think of Stephen's Proposition?

>>>>> "Stephen" == Stephen Eglen <stephen at anc.ed.ac.uk> writes:

    Stephen> I've recently started using R, and find the Emacs interface
    Stephen> very useful.  The ESS package is similar to octave's emacs
    Stephen> interface, which I've got rather attached to.  One nice thing
    Stephen> octave's mode does is to send a line to the process and then
    Stephen> move the cursor to the next line of code,
    Stephen>  SKIPPING OVER BLANK LINES AND COMMENT LINES.
              -------------------------------------------
    stephen> The closest defun in ESS seems to be
    Stephen> ess-eval-line-and-next-line, which just calls (next-line 1).

    Stephen> I think this useful behaviour can be attained by copying the
    Stephen> defun octave-next-code-line as I've done below.  (NB thanks to
    Stephen> Kurt Hornik and John Eaton for their code.)  I've tested it on
    Stephen> the file R-intro.R and it seems to work fine.

    < ..... >

I think this is a very useful idea.

Shall I make this the default behavior of   ess-eval-line-and-next-line
      aka C-c C-n
and allow back-compatibility
(ie. one could set an ess-... variable which would change the behavior back
 to the current behavior)

 --- or is it okay to even drop that back-compatibility, since the new
     behavior would be desirable by everyone ?

----
If I don't here votes requiring back compatibility,
I think I'll commit Stephen's new code.

Martin Maechler <maechler at stat.math.ethz.ch>	http://stat.ethz.ch/~maechler/
Seminar fuer Statistik, ETH-Zentrum  LEO D10	Leonhardstr. 27
ETH (Federal Inst. Technology)	8092 Zurich	SWITZERLAND
phone: x-41-1-632-3408		fax: ...-1228			<><
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