From mboxrd@z Thu Jan  1 00:00:00 1970
From: Carsten Dominik <carsten.dominik@gmail.com>
Subject: Re: Possible bug in ordered tasks
Date: Sat, 26 Jun 2010 07:55:20 +0200
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To: Bernt Hansen <bernt@norang.ca>
Cc: Org Mode <emacs-orgmode@gnu.org>, rpgoldman@sift.info


On Jun 25, 2010, at 8:55 PM, Bernt Hansen wrote:

> Carsten Dominik <carsten.dominik@gmail.com> writes:
>
>> On Jun 25, 2010, at 3:23 PM, Robert Goldman wrote:
>>
>>> Question:  what is the proper way to get a NIL into a property?  Are
>>> we
>>> to use () instead of "nil"?  Or are property values always  
>>> interpreted
>>> as strings?
>>>
>>> Apologies in advance if this is a stupid question!
>>
>> Not a stupid question at all.
>>
>> There is no way, currently.   Property values are string - the only
>> way to make
>> org-entry-get return nil is to not have the property defined at all.
>
> I've wanted a similar thing in the past for the LOGGING property where
> the parent task has special logging set via the LOGGING property but I
> want to undo that for some of the child tasks so they use the default
> logging setup.
>
> Having a way to undefine a property would be good in general I think.

This does now work, the property value "nil" will now be interpreted as
explicit undefine of a property.

- Carsten