GNU bug report logs - #64185
proposal for new function: copy-line

Previous Next

Full log

View this message in rfc822 format

From: Juri Linkov <juri <at> linkov.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 64185 <at> debbugs.gnu.org, me <at> eshelyaron.com, Zachary Kanfer <zkanfer <at> gmail.com>
Subject: bug#64185: proposal for new function: copy-line
Date: Thu, 22 Jun 2023 09:57:31 +0300

>> I do think it's more useful to put point on the second line; I almost
>> always find myself wanting to edit the "new" line, not the old
>> one. Yes, there isn't really a new vs old line, but I write the first
>> thing I want to see first, then want to duplicate it to make
>> a changed second line.

I agree that it's more useful to put point on the second line.
This is the reason why I can't use the new command 'duplicate-line',
so forced to continue using my own implementation in ~/.emacs.

> We could have the prefix arg of - (i.e., "C-u - M-x ...") produce that
> behavior from duplicate-line.

The problem is how to define this behavior with the prefix arg C-u in case
when a prefix numeric argument is used.

> Or we could have a user option to do that regardless of the argument,
> but then we should decide on which of the N new lines to put point:
> the first one copied or the last one.

A user option looks preferable.  In case of a prefix numeric argument,
it also makes sense to have 3 choices:

1. leave point on the old line
2. move point to the first new line
3. move point to the last new line

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.