From: Kaushal Modi <kaushal.modi@gmail.com>
To: Juri Linkov <juri@linkov.net>
Cc: Emacs developers <emacs-devel@gnu.org>
Subject: Re: Notify region-extract-function change in NEWS?
Date: Sat, 06 Feb 2016 04:49:19 +0000 [thread overview]
Message-ID: <CAFyQvY3x+o=oGNAGUjcki58kXFcOAY42xqHoN2JmVXWyrTu8yQ@mail.gmail.com> (raw)
In-Reply-To: <CAFyQvY00Ni0Unv_aGEOQtTH=GBqTK=2XFF=u6yH4dV86qWg0Eg@mail.gmail.com>
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I believe I was doing a bit wrong earlier; it's fixed now (
https://github.com/kaushalmodi/.emacs.d/commit/822854333cd2cc05c2b4cfe642925f832cf40cfb
).
=====
(defun modi/region-extract-function--C-u-kill (orig delete)
"When a region is selected,
and if \\[universal-argument] is used,
and DELETE is \\='delete (when doing \\[kill-region]), or
DELETE is nil (when doing \\[kill-ring-save]),
kill the region with all trailing whitespace removed and also replace 2
or more spaces with single spaces.
Else, execute ORIG function."
(if (and (region-beginning)
(eq 4 (prefix-numeric-value current-prefix-arg)) ; when using
C-u, and
(or (eq delete 'delete) ; when cutting (C-w), or
(eq delete nil))) ; when copying (M-w)
(let ((sel (filter-buffer-substring (region-beginning) (region-end)
delete)))
(with-temp-buffer
(insert sel)
(delete-trailing-whitespace)
(goto-char (point-min))
(while (re-search-forward "\\s-\\{2,\\}" nil :noerror)
(replace-match " "))
(buffer-string)))
(funcall orig delete)))
(add-function :around region-extract-function
#'modi/region-extract-function--C-u-kill)
=====
So now it is probably more immune to future changes to the default value of
region-extract-function. Thanks for the tip to look into add-function.
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next prev parent reply other threads:[~2016-02-06 4:49 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-05 20:29 Notify region-extract-function change in NEWS? Kaushal Modi
2016-02-05 20:47 ` Kaushal Modi
2016-02-06 0:30 ` Juri Linkov
2016-02-06 4:08 ` Kaushal Modi
2016-02-06 4:49 ` Kaushal Modi [this message]
2016-02-08 13:48 ` Stefan Monnier
2016-02-08 15:58 ` John Wiegley
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