From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <n.goaziou@gmail.com>
Subject: Re: Use of attribute :parent in org-element.el
Date: Fri, 19 Apr 2013 17:07:22 +0200
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In-Reply-To: <871ua6ejxr.fsf@gmail.com> (Thorsten Jolitz's message of "Fri, 19
	Apr 2013 15:20:16 +0200")
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To: Thorsten Jolitz <tjolitz@gmail.com>
Cc: emacs-orgmode@gnu.org

Hello,

Thorsten Jolitz <tjolitz@gmail.com> writes:

> The use of the :parent attribute is surprising for me. I would have
> expected something like ':parent org-mode everywhere' in the second
> example, i.e. the title of the 1st level subtree containing the 2nd
> level headline at point.

`org-element-at-point' and `org-element-context' return information
about the close neighbourhood of point, which is the current section. In
other words, each element at top level within the section get
a nil :parent property.

As a special case, when point is at a headline, each function returns
the parsed headline, without any :parent property defined (it would be
out of the scope of these functions).

> I'm not sure what I would have expected in the first example. What is
> the parent of an element that is contained in a greater element that has
> a parent? Is it nil, or is it the parent of its containing greater
> element?

If you parse completely the buffer with `org-element-parse-buffer', you
will see that genealogy for property drawer goes like this:

  property-drawer > section > headline > headline > org-data


Regards,

-- 
Nicolas Goaziou