GNU bug report logs - #22873
25.1.50; Feature Request -- Multiple Cursors (built-in support)

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Keith David Bershatsky <esq <at> lawlist.com>
Cc: jwiegley <at> gmail.com, mbork <at> mbork.pl, 22873 <at> debbugs.gnu.org, rms <at> gnu.org
Subject: bug#22873: Can we support multiple Cursors?
Date: Tue, 29 Mar 2016 17:58:21 +0300

> Date:  Mon, 28 Mar 2016 20:45:07 -0700
> From:  Keith David Bershatsky <esq <at> lawlist.com>
> Cc:  John Wiegley <jwiegley <at> gmail.com>,Eli Zaretskii <eliz <at> gnu.org>,Marcin Borkowski <mbork <at> mbork.pl>,Richard Stallman <rms <at> gnu.org>
> 
> The attached multiple_cursors_007.diff applies to the master branch as of today, March 28, 2016, bearing commit a30e7e12ed8465e2565dd318d921bc87f52ce18e.
> 
> mc_calc now runs from the applicable nsterm.m/w32term.c/xterm.c, instead of xdisp.c.

Why is that a good idea?  You have 3 almost identical copies of the
same code, which goes against our long-time trend to have terminal
independent code only once, for easier maintenance.

>                         ((oddp current-column)
>                           (list pos "bar" [1.0 0.0 0.0])) ;; red
>                         ((evenp current-column)
>                           (list pos "bar" [0.0 0.0 1.0])))))) ;; blue

That's not how we specify colors in Emacs, not on the user level,
anyway.  I don't think I like this design.  Why not use the existing
mechanisms for specifying the cursor color?

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