From: Emanuel Berg <embe8573@student.uu.se>
To: help-gnu-emacs@gnu.org
Subject: Re: How to change and save a read-only file?
Date: Fri, 19 Jul 2013 14:36:04 +0200 [thread overview]
Message-ID: <87ehaupw0b.fsf@VLAN-3434.student.uu.se> (raw)
In-Reply-To: 87vc4tvocn.fsf@VLAN-3434.student.uu.se
Emanuel Berg <embe8573@student.uu.se> writes:
> That looks pretty standard to me. But more important, it works
> great!
I tried to improve the function even more, because I noticed, when
there was a region in the original buffer, and I wanted to do
something on that region, when I stroke the `su-edit', the region
disapeared. So, I made changes to the function (code last). It
works, but with one detail missing: I get the region as desired in
the new buffer, but for some reason, *the region doesn't
show*. The highlight isn't there. But if I strike `write-region'
or whatever, I can confirm that the region is there as it
should. Any ideas?
I tried both with set-mark, and set-mark-command, with the same
result.
(defun su-edit ()
"Edit the current buffer file as superuser."
(interactive)
(let((window-start (window-start))
(point (point))
(pres-reg-beg (if (use-region-p) (region-beginning) nil)))
(find-alternate-file (format "/sudo::%s" (buffer-file-name)))
(message (format "The variable is %d." pres-reg-beg))
(if pres-reg-beg (set-mark pres-reg-beg)) ; same: set-mark-command
(goto-char point)
(set-window-start nil window-start) )) ; nil - the selected window
--
Emanuel Berg - programmer (hire me! CV below)
computer projects: http://user.it.uu.se/~embe8573
internet activity: http://home.student.uu.se/embe8573
next prev parent reply other threads:[~2013-07-19 12:36 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.2780.1372497288.22516.help-gnu-emacs@gnu.org>
2013-06-29 13:10 ` How to change and save a read-only file? Emanuel Berg
2013-06-29 13:30 ` Emanuel Berg
2013-07-01 22:35 ` Richard Copley
[not found] ` <mailman.14.1372718151.12400.help-gnu-emacs@gnu.org>
2013-07-01 23:42 ` Emanuel Berg
2013-07-19 12:36 ` Emanuel Berg [this message]
2013-11-20 3:27 Emanuel Berg
2013-11-20 14:22 ` Kevin Rodgers
[not found] ` <mailman.6640.1384957268.10748.help-gnu-emacs@gnu.org>
2013-11-20 16:24 ` Emanuel Berg
-- strict thread matches above, loose matches on Subject: below --
2013-06-29 9:14 Marius Hofert
2013-06-29 9:20 ` Peter Dyballa
2013-06-29 11:04 ` Thorsten Jolitz
2013-06-29 11:16 ` Jude DaShiell
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