From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: commenting out a SCHEDULED line does not remove todo from
 agenda.
Date: Thu, 17 Jan 2013 00:02:05 -0500
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In-Reply-To: Message from Nick Dokos <nicholas.dokos@hp.com>
	of "Wed, 16 Jan 2013 12:48:20 EST." <8696.1358358500@alphaville>
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To: Rainer Stengele <rainer.stengele@online.de>
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Nick Dokos <nicholas.dokos@hp.com> wrote:

> Rainer Stengele <rainer.stengele@online.de> wrote:
> 
> > Hi!
> > 
> > Imagine you have a todo like this:
> > 
> > ***** TODO a task
> >       SCHEDULED: <2013-01-16 Mi +2m>
> > 
> > Now suppose you want to put that todo on hold. In order to no more see
> > the scheduled date in the agenda I comment out the "SCHEDULED" line.
> > I do not want to delete it because I maybe need it later again:
> > 
> > 
> > ***** TODO a task
> >       # SCHEDULED: <2013-01-16 Mi +2m>
> > 
> > The todo still appears in the agenda.
> > Is this not counterintuitive?
> > 
> 
> Try putting the # in column 1 (untested).
> 

I've now tested it and it is as I thought: the comment character has to
be in column 1. The reason is org-agenda-skip:

,----
| (defun org-agenda-skip ()
|   "Throw to `:skip' in places that should be skipped.
| Also moves point to the end of the skipped region, so that search can
| continue from there."
|   (let ((p (point-at-bol)) to)
|     (when (org-in-src-block-p t) (throw :skip t))
|     (and org-agenda-skip-archived-trees (not org-agenda-archives-mode)
| 	 (get-text-property p :org-archived)
| 	 (org-end-of-subtree t)
| 	 (throw :skip t))
|     (and org-agenda-skip-comment-trees
| 	 (get-text-property p :org-comment)
| 	 (org-end-of-subtree t)
| 	 (throw :skip t))
|     (if (equal (char-after p) ?#) (throw :skip t))
|     (when (setq to (or (org-agenda-skip-eval org-agenda-skip-function-global)
| 		       (org-agenda-skip-eval org-agenda-skip-function)))
|       (goto-char to)
|       (throw :skip t))))
`----

It sets p to the point at the beginning of the line and then
checks if the character after it is '#'. Only then does it skip
the entry.

Nick