[Standards] XEP-107 and XEP-108: Empty Value?

[Dave Cridland]

On Fri May 23 05:11:14 2008, Peter Saint-Andre wrote:
> It seems rather messy to delete the node and then re-create it all  
> the
> time. For example, lots of geolocation services enable you to  
> specify
> certain locations that are private. So when you move to a private
> location, you want to stop publishing temporarily. But you might  
> start
> publishing again 20 minutes later or whatever. So why delete the  
> node
> (along with all its subscriptions) only to re-create it so soon?

Could we not define some way of positively indicating a lack of  
information?

Say, a <mu/> element, which could either go inside a <tune/>, or  
replace it entirely within the node. (I'm here using "mu" as an  
acknowledgement of the question but a refusal to answer it, serious  
Japanese/Zen people can laugh at my ineptitude in using the word  
"without").

Dave.
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