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Re: [closed] hendler-01 literals in parsetype collection

From: Jim Hendler <hendler@cs.umd.edu>
Date: Thu, 27 Mar 2003 09:30:19 -0500
Message-Id: <p05200f08baa8bb000b6d@[10.0.1.4]>
To: Brian McBride <bwm@hplb.hpl.hp.com>, Dave Beckett <dave.beckett@bristol.ac.uk>
Cc: www-rdf-comments@w3.org, Bijan Parsia <bparsia@isr.umd.edu>

At 13:33 +0000 3/27/03, Brian McBride wrote:
>Thanks for the confirmation Jim.
>
>
>At 07:58 27/03/2003 -0500, Jim Hendler wrote:
>
>[...]
>
>>>>If I use current RDF constructs I have no way to produce this as 
>>>>a closed list.
>>>
>>>You might want to amend this statement.  I think your point is 
>>>that the syntax required is ugly, not that it can't be done, Right?
>>
>>Sorry, what I meant to say in this sentence was
>>
>>If I use the other current RDF list constructs (i.e. not including 
>>collection) then I cannot produce this as a closed list.
>
>I'm sorry, but I don't think that is right.  You cannot use the 
>rdf:parseType syntax to create the list, but you can spell out the 
>structure explicitly, e.g.:
>
><rdf:Description>
>   <foo:listValuedProp>
>     <rdf:List rdf:nodeID="head"/>
>   </foo:listValuedProp>
></rdf:Description>
>
><rdf:List rdf:nodeID="head">
>   <rdf:first>first</rdf:first>
>   <rdf:rest>
>     <rdf:List rdf:nodeID="l2"/>
>   </rdf:rest>
></rdf:List>
>
><rdf:List rdf:nodeID="l2">
>   <rdf:first>second</rdf:first>
>   <rdf:rest>
>     <rdf:List rdf:nodeID="l3"/>
>   </rdf:rest>
></rdf:List>
>
><rdf:List rdf:nodeID="l3">
>   <rdf:first>first</rdf:first>
>   <rdf:rest>
>     <rdf:nil/>
>   </rdf:rest>
></rdf:List>
>
>Brian

My apologies, I had not realized this could be done this way outside 
of collections - you are right that I should have simply said it was 
ugly and overcomplex, as opposed to non-doable.
-- 
Professor James Hendler				  hendler@cs.umd.edu
Director, Semantic Web and Agent Technologies	  301-405-2696
Maryland Information and Network Dynamics Lab.	  301-405-6707 (Fax)
Univ of Maryland, College Park, MD 20742	  240-731-3822 (Cell)
http://www.cs.umd.edu/users/hendler
Received on Thursday, 27 March 2003 09:34:08 GMT

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