From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Davison Subject: Re: Poll: Who is using these commands Date: Sun, 09 May 2010 14:13:37 -0400 Message-ID: <87pr15gcz2.fsf@stats.ox.ac.uk> References: <20100508202159.GA32505@taupan.ath.cx> <4BE5DF9C.909@gmail.com> <245881E6-B69D-4E6F-A1B1-C4EFA39AF7BC@gmail.com> <3634.1273420760@gamaville.dokosmarshall.org> 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 1OBB0c-0002yv-0p for emacs-orgmode@gnu.org; Sun, 09 May 2010 14:13:46 -0400 Received: from [140.186.70.92] (port=42400 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OBB0a-0002yM-KD for emacs-orgmode@gnu.org; Sun, 09 May 2010 14:13:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OBB0Z-0004CM-1n for emacs-orgmode@gnu.org; Sun, 09 May 2010 14:13:44 -0400 Received: from markov.stats.ox.ac.uk ([163.1.210.1]:64930) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OBB0Y-0004CA-Mq for emacs-orgmode@gnu.org; Sun, 09 May 2010 14:13:42 -0400 In-Reply-To: (Leo's message of "Sun, 09 May 2010 17:23:46 +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: Leo Cc: emacs-orgmode@gnu.org Leo writes: > On 2010-05-09 16:59 +0100, Nick Dokos wrote: >> I disagree: they are not parenthesis movement bindings - they are >> structure-navigation bindings. For example, C-M-f is forward-sexp. >> In lisp, an sexp has some relationship to parentheses, but it is >> incidental; in other programming modes, an sexp is whatever makes >> sense in that language and these commands are redefined appropriately. > > Perhaps you haven't noticed. SEXP is a useful abstract. For example, > it allows you to move across some_long_function_name in C and even in > the message-mode I'm currently using, not just parenthesis. Situation > like this will arise when editing org files too. Yes, so in other words C-M-f can be used to jump over atoms, and in many modes that has the useful effect of jumping over words containing '_' '-' etc. I haven't seen any disagreement yet over the general principle of treating headings as SEXPs, so I think the issue here is: is Org happy to declare that a childless heading is atomic? And if we are happy with that, are we left with a convenient way to skip over something-like-this or something_like_this when they occur in Org-mode? An alternative view would be that when point is at the beginning of a heading C-M-f skips over the subtree, and otherwise C-M-f skips over one "Org atom", however defined. Dan > It is a key binding that you > can rely on in various modes and they happen to do the right thing. > > They are not re-defined, in most modes once you have a proper syntax > table, they just work. On the other hand, the defun abstraction is not > as universal as sexp so redefine them is fine. > > C-M-f and C-M-b are keys that I use extensively. > > I haven't used C-M-n and C-M-p much. > >> I think it is entirely appropriate to use these bindings to navigate >> structure in org-mode as well. > > I am not against binding suitable keys to structure movement. > > Leo