From: "Drew Adams" <drew.adams@oracle.com>
To: "'Dan Davison'" <davison@stats.ox.ac.uk>,
"'help-gnu-emacs mailing list'" <help-gnu-emacs@gnu.org>
Subject: RE: How to create new buffer with t-m-m active region?
Date: Sat, 4 Sep 2010 17:25:52 -0700 [thread overview]
Message-ID: <076A3A212B3F4180869BBBCA325A60F7@us.oracle.com> (raw)
In-Reply-To: <87k4n11hhj.fsf@stats.ox.ac.uk>
> How would I generate a new buffer containing an active region
> such that the next command issued in the new buffer will act
> on the region? (And so that the region is highlighted)
>
> For example, this function doesn't do what it wants to do:
>
> (defun new-buffer-w-active-region ()
> (interactive)
> (let ((transient-mark-mode t))
> (switch-to-buffer (get-buffer-create "region-test"))
> (delete-region (point-min) (point-max))
> (insert "I want these lines\n")
> (insert "to be in an active region with t-m-m on\n")
> (insert "such that comment-region comments them out\n")
> (emacs-lisp-mode)
> (push-mark (point-min) nil 'activate)))
>
>
> With that function, the following doesn't do what is intended:
>
> M-x new-buffer-w-active-region
> M-;
Yes, this is a common gotcha that you just have to learn once if you do this
kind of thing: Add this sexp at the end of your command:
(setq deactivate-mark nil)
next prev parent reply other threads:[~2010-09-05 0:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-04 18:38 How to create new buffer with t-m-m active region? Dan Davison
2010-09-05 0:25 ` Drew Adams [this message]
2010-09-05 3:47 ` Dan Davison
[not found] <mailman.7.1283625538.1782.help-gnu-emacs@gnu.org>
2010-09-04 23:01 ` Stefan Monnier
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