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From: Nicolas Goaziou <n.goaziou@gmail.com>
To: Suvayu Ali <fatkasuvayu+linux@gmail.com>
Cc: emacs-orgmode@gnu.org, Carsten Dominik <carsten.dominik@gmail.com>
Subject: Re: Outline cycling does not preserve point's position
Date: Tue, 10 Sep 2013 18:33:16 +0200	[thread overview]
Message-ID: <87a9jk8wmr.fsf@gmail.com> (raw)
In-Reply-To: <20130910095043.GR20690@kuru.dyndns-at-home.com> (Suvayu Ali's message of "Tue, 10 Sep 2013 11:50:43 +0200")

Hello,

Suvayu Ali <fatkasuvayu+linux@gmail.com> writes:

> On Tue, Sep 10, 2013 at 11:02:35AM +0200, Carsten Dominik wrote:
>> 
>> On 10.9.2013, at 10:50, Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote:
>> 
>> > On Tue, Sep 10, 2013 at 10:16:06AM +0200, Carsten Dominik wrote:
>> >> 
>> >> The question is:  What are people using C-arrow for?
>> >> 
>> >> I think the main application is reasonably fast motion
>> >> and selection in a *linear* way.  Is this correct, or do people
>> >> disagree here with me?
>> > 
>> > I use it for navigating a buffer (not necessarily Org) linearly; i.e. go
>> > back and forth between parts I'm working on or to peruse the contents of
>> > a file.  That said, often I feel the need for a navigation command which
>> > allows me to navigate the semantics of the buffer (which exactly what
>> > Nicolas's elements based navigation does).
>> > 
>> >> The amazing element motion commands Nicolas has implement
>> >> correspond to sexp motion, as he has said himself.
>> >> Maybe C-M-f and C-M-b are the better binding match for these?
>> > 
>> > I think you are right here.  There is a need for both.  For me, I use
>> > linear navigation more commonly; so I would prefer C-<up/down> for
>> > linear navigation and some other bindings (like C-M-f/b, as you suggest)
>> > for the elements based motion.
>> 
>> And by linear, I think we don't mean strictly linear, but on a
>> paragraph/table/item scale, ignoring hierarchy.
>
> Yes.  However I think I differ a bit on items.  For me in a list like
> the following, I would call moving by paragraphs _within_ the list items
> linear; so, "Lorem..." → "Cras..." → "Integer..." → "Aenean..." →
> "Pellentesque...", and so on.

Here's a first draft for the linear forward motion. Disclaimer: I didn't
test it thoroughly.

  (defun org-forward-linear-element ()
    (interactive)
    (when (eobp) (user-error "Cannot move further down"))
    (let* ((origin (point))
           (element (org-element-at-point))
           (type (org-element-type element))
           (contents-begin (org-element-property :contents-begin element))
           (contents-end (org-element-property :contents-end element))
           (end (let ((end (org-element-property :end element)) (parent element))
                  (while (and (setq parent (org-element-property :parent parent))
                              (= (org-element-property :contents-end parent) end))
                    (setq end (org-element-property :end parent)))
                  end)))
      (skip-chars-forward " \r\t\n")
      (or (eobp) (goto-char (max (line-beginning-position) origin)))
      (cond ((or (eobp) (= (point) end)))
            ((not contents-begin) (goto-char end))
            ((< (point) contents-begin)
             (cond ((eq type 'item)
                    (end-of-line)
                    (org-forward-and-down-element))
                   ((eq type 'table-row) (goto-char end))
                   (t (goto-char contents-begin))))
            ((>= (point) contents-end) (goto-char end))
            ((eq type 'paragraph) (goto-char end))
            ((eq type 'plain-list)
             (end-of-line)
             (org-forward-and-down-element))
            ((eq type 'table)
             (forward-line)
             (when (>= (point) contents-end) (goto-char end)))
            ((eq type 'verse-block)
             (or (re-search-forward "^[ \t]*$" contents-end t)
                 (goto-char end)))
            (t (error "This shouldn't happen")))
      (when (org-invisible-p2) (goto-char end))))

WDYT?


Regards,

-- 
Nicolas Goaziou

  reply	other threads:[~2013-09-10 16:33 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-07 12:11 Outline cycling does not preserve point's position Sebastien Vauban
2013-09-07 14:17 ` Carsten Dominik
     [not found]   ` <BED1FBAA-8BB5-45D6-8328-11C0BB2DF015-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2013-09-07 19:28     ` Sebastien Vauban
2013-09-08  6:16       ` Carsten Dominik
2013-09-09  7:57         ` Sebastien Vauban
2013-09-08 11:03       ` Eric Schulte
2013-09-09  8:39         ` Sebastien Vauban
2013-09-08 16:23       ` Carsten Dominik
2013-09-09  8:11         ` Sebastien Vauban
2013-09-09  8:13           ` Carsten Dominik
2013-09-09  8:23             ` Sebastien Vauban
2013-09-09  8:27               ` Carsten Dominik
2013-09-09  8:33                 ` Sebastien Vauban
2013-09-09  8:38                   ` Bastien
2013-09-09  9:05                     ` Carsten Dominik
2013-09-09 11:32                       ` Nicolas Goaziou
2013-09-09 11:49                         ` Bastien
2013-09-09 15:27                           ` Nicolas Goaziou
2013-09-09 14:23                         ` Carsten Dominik
2013-09-09 15:16                           ` Jambunathan K
2013-09-09 15:41                           ` Nicolas Goaziou
2013-09-09 17:42                             ` Sebastien Vauban
2013-09-10  3:47                             ` Carsten Dominik
2013-09-10  6:03                               ` Carsten Dominik
2013-09-10  6:48                                 ` Eric Abrahamsen
2013-09-10  7:32                                 ` Suvayu Ali
2013-09-10  7:53                                   ` Suvayu Ali
2013-09-10  7:58                                     ` Carsten Dominik
2013-09-10  8:16                                       ` Carsten Dominik
2013-09-10  8:50                                         ` Suvayu Ali
2013-09-10  9:02                                           ` Carsten Dominik
2013-09-10  9:50                                             ` Suvayu Ali
2013-09-10 16:33                                               ` Nicolas Goaziou [this message]
2013-09-10 18:35                                                 ` Jambunathan K
2013-09-10 18:39                                                   ` Nicolas Goaziou
2013-09-10 19:22                                                     ` Jambunathan K
2013-09-10 19:40                                                       ` Jambunathan K
2013-09-10 19:52                                                       ` Nicolas Goaziou
2013-09-10 18:58                                                 ` Suvayu Ali
2013-09-10 19:07                                                   ` Suvayu Ali
2013-09-10 19:48                                                   ` Nicolas Goaziou
2013-09-10 20:13                                                     ` Suvayu Ali
2013-09-10 20:29                                                       ` Nicolas Goaziou
2013-09-10 21:08                                                     ` Carsten Dominik
2013-09-11 12:24                                                       ` Suvayu Ali
2013-09-12  6:54                                                         ` Jambunathan K
2013-09-12  9:11                                                           ` Nicolas Goaziou
2013-09-12  9:28                                                             ` Jambunathan K
2013-09-12  9:47                                                               ` Suvayu Ali
2013-09-11  2:49                                                     ` Jambunathan K
2013-09-11 11:09                                                       ` Nicolas Goaziou
2013-09-11 11:34                                                         ` Jambunathan K
2013-09-11 15:19                                                           ` Nicolas Goaziou
2013-09-11 15:40                                                             ` Jambunathan K
2013-09-11 15:31                                                         ` Jambunathan K
2013-09-11 15:40                                                           ` Nicolas Goaziou
2013-09-11 16:14                                                             ` Jambunathan K
2013-09-11 20:01                                                               ` Nicolas Goaziou
2013-09-11 22:11                                                                 ` Suvayu Ali
2013-09-12  6:43                                                                 ` Jambunathan K
2013-09-12  9:07                                                                   ` Nicolas Goaziou
2013-09-12 10:12                                                                     ` Jambunathan K
2013-09-12  7:17                                                                 ` Sebastien Vauban
2013-09-13 10:57                                                                 ` Carsten Dominik
2013-09-13 22:29                                                                   ` Nicolas Goaziou
2013-09-14  5:33                                                                     ` Carsten Dominik
2013-09-14 17:16                                                                     ` Suvayu Ali
2013-09-15  4:39                                                                       ` Carsten Dominik
2013-09-10 20:16                                         ` Samuel Wales
2013-09-10  5:06                             ` Jambunathan K
2013-09-11  3:57                             ` Jambunathan K
2013-09-11 15:47                               ` Nicolas Goaziou
2013-09-09  8:38                   ` Carsten Dominik
2013-09-09 11:30                     ` Nicolas Goaziou

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