From: Dan Davison <davison@stats.ox.ac.uk>
To: "Drew Adams" <drew.adams@oracle.com>
Cc: '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, 04 Sep 2010 23:47:33 -0400 [thread overview]
Message-ID: <87vd6kyhpm.fsf@stats.ox.ac.uk> (raw)
In-Reply-To: <076A3A212B3F4180869BBBCA325A60F7@us.oracle.com> (Drew Adams's message of "Sat, 4 Sep 2010 17:25:52 -0700")
"Drew Adams" <drew.adams@oracle.com> writes:
>> 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)
Thanks for that Drew.
Dan
next prev parent reply other threads:[~2010-09-05 3:47 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
2010-09-05 3:47 ` Dan Davison [this message]
[not found] <mailman.7.1283625538.1782.help-gnu-emacs@gnu.org>
2010-09-04 23:01 ` Stefan Monnier
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