From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: How to track down "No heading for this item in buffer or
 region."?
Date: Thu, 24 Jan 2013 14:35:38 -0500
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In-Reply-To: Message from Bastien <bzg@altern.org>
	of "Thu, 24 Jan 2013 20:24:18 +0100." <87libipeot.fsf@bzg.ath.cx>
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To: Bastien <bzg@altern.org>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>, Carsten Dominik <dominik@science.uva.nl>

Bastien <bzg@altern.org> wrote:

> Hi Gregor,
> 
> Gregor Zattler <telegraph@gmx.net> writes:
> 
> > But alas, the message "No heading for this item in buffer or
> > region." still appears two times in my agenda -- for today.
> 
> The attached patch fixes it.
> 
> Carsten, was there any special reason for allowing to add
> an agenda entry before the first headline?  The following 
> patch prevent this.
> 

I think you'd be better off fixing the lazily assigned text properties
and then you don't need to worry about adding restrictions. In addition,
this fix does not do anything for the following case:

If I slightly modify the previous example 

,----
| # timestamp: <2013-01-24 Thu>
| 
| * TODO foo
| #  SCHEDULED: <2013-01-24 Thu>
`----
  

to try to reproduce Rainer's problem, when I first construct the agenda,
I get *both* the TODO and the no-heading message: text properties are not
active. If I then visit the file (e.g. RET on the TODO item) and construct
the agenda again, neither the TODO nor the no-heading message appears.

Nick