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Re: keybinding to duplicate the current line.

From: Dirk-Jan C . Binnema
Subject: Re: keybinding to duplicate the current line.
Date: Sun, 17 Jan 2010 16:37:19 +0200
User-agent: Wanderlust/2.15.6 (Almost Unreal) Emacs/23.1 Mule/6.0 (HANACHIRUSATO)


>>>>> "alin" == alin s <address@hidden> writes:

    alin> For me it would be very convenient to have a key-binding to duplicate 
    alin> current line.

    alin> In order to duplicate it I have to press

    alin> C-a C-SPACE C-e C-f M-w C-g C-y

    alin> It's too much for an usual function. C-x C-a would be good?

I like 'slick copy', ie., copy without needing to select:

Then, you can duplicate lines with:

  M-w C-y

Which is very natural.  

    alin> More than that, if I press C-u C-x C-a, I wish to duplicate the 
    alin> line, and to comment the old line.

    alin> Do you consider that such a function would be useful for many of you?
    alin> Otherwise, I have to wtite it myseld in my own .emacs...

Something quick and fairly dirty:
(defun comment-and-dup ()
    (forward-line 1)
    (let ((str (buffer-substring (region-beginning) (region-end))))
      (comment-region (region-beginning) (region-end))
      (insert-string str))))

Best wishes,

Dirk-Jan C. Binnema                  Helsinki, Finland
e:address@hidden           w:www.djcbsoftware.nl
pgp: D09C E664 897D 7D39 5047 A178 E96A C7A1 017D DA3C

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