From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bernt Hansen Subject: Re: question about org-region-active-p Date: Wed, 17 Dec 2008 11:44:14 -0500 Message-ID: <87d4fq4uqp.fsf@gollum.intra.norang.ca> References: <494709A4.1000703@sift.info> <9F73C60D-A8B2-4D0B-AFE0-DE210312A021@uva.nl> <4947CC95.60900@sift.info> <494908C5.5050702@sift.info> <531B6C47-6267-4530-ACF8-F2C1548159CE@uva.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LCzVV-0000Nd-A4 for emacs-orgmode@gnu.org; Wed, 17 Dec 2008 11:44:21 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LCzVU-0000NR-TZ for emacs-orgmode@gnu.org; Wed, 17 Dec 2008 11:44:21 -0500 Received: from [199.232.76.173] (port=59158 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LCzVU-0000NO-LF for emacs-orgmode@gnu.org; Wed, 17 Dec 2008 11:44:20 -0500 Received: from mho-02-bos.mailhop.org ([63.208.196.179]:56431) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LCzVU-0007DI-9S for emacs-orgmode@gnu.org; Wed, 17 Dec 2008 11:44:20 -0500 In-Reply-To: <531B6C47-6267-4530-ACF8-F2C1548159CE@uva.nl> (Carsten Dominik's message of "Wed\, 17 Dec 2008 17\:29\:23 +0100") List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: Carsten Dominik Cc: emacs-orgmode@gnu.org, Robert Goldman Hi Carsten, Just to add to the discussion, transient-mark-mode is off for me in GNU Emacs 22.2.1 (i486-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2008-11-09 on raven, modified by Debian. If I start with emacs -q transient-mark-mode is nil. I've explicitly set it on in my .emacs (as of the beginning of this discussion) and that makes things work better for me. ,----[ end of my .emacs ] | (transient-mark-mode 1) `---- Regards, Bernt Carsten Dominik writes: > Dear Robert, > > also region-active-p requires transient-mark-mode to be active, if you > look > at the definition of the region-active-p function, you will see that. > > transient-mark-mode is on by default in Emacs. Why did you turn it > *off* in the > first place????? > > - Carsten > > On Dec 17, 2008, at 3:12 PM, Robert Goldman wrote: > >> Carsten Dominik wrote: >>> Hi Robert, >>> >>> no, I do not think this would make sense, to step out with >>> an error, because all the commands that need a region will >>> also work without one. This is how regions work in Emacs. >>> >>> If you find places in the documentation where this could >>> be made clearer, let me know. >> >> Thank you Carsten for the response. I am still inclined to think that >> this case is one where the user should get some warning because it's >> in >> that bad class of bug-like situations where code quietly does >> something >> that the user does not expect and that contradicts the documentation. >> >> On the other hand, I can't see where one would raise an error. It's >> not >> an error to call org-region-active-p without transient-mark-mode; >> indeed >> some libraries turn this on and off, and the user is entitled not to >> use it. >> >> The call to export isn't right, because the export command does not >> give >> the system any opportunity to infer whether the user intended to >> operate >> on a region or on the whole. So there's no way to tell that the >> user's >> expectations are going to be violated. >> >> The loading of org-mode isn't the right place, either, since the vast >> majority of org-mode works just fine with t-m-m turned off. >> >> I'm inclined to think that the answer is simply that one shouldn't >> turn >> transient-mark-mode off, ever. This works for me, but I hate to think >> of the next person coming along to fall into this same trap, from >> which >> the only means of escape is to inspect the source code and use the >> debugger. >> >> I would suggest a modification to the manual and will submit one, but >> need clarification about one issue: the use of t-m-m seems to be a >> fallback for older emacsen that don't have region-active-p. I have >> such >> an emacs, so I don't know --- does this mean that on newer emacsen >> org-region-active-p will work even without transient-mark-mode? >> >> Best, >> Robert > > > > _______________________________________________ > Emacs-orgmode mailing list > Remember: use `Reply All' to send replies to the list. > Emacs-orgmode@gnu.org > http://lists.gnu.org/mailman/listinfo/emacs-orgmode