W3C home > Mailing lists > Public > www-rdf-interest@w3.org > December 2004

Re: Properties with %20 and other names that aren't xml names

From: James Cerra <jfcst24_public@yahoo.com>
Date: Mon, 20 Dec 2004 13:16:34 -0800 (PST)
Message-ID: <20041220211634.87243.qmail@web42206.mail.yahoo.com>
To: Jeen Broekstra <jeen@aduna.biz>
Cc: www-rdf-interest@w3.org

> We apparently have to live with the fact that some
> RDF graphs can not 
> be serialized in XML (or at least not in RDF/XML).

Ack!  Would it really have killed anyone to have a
fallback position added to rdf/xml?  The only way that
I can think of requires OWL Lite.  That is [1]:

<rdf:Description rdf:about="%base;#isDefinedBy">
  <owl:equivalentProperty
    rdf:resource="&ex;is%20defined%20by"
  />
</rdf:Description>

<rdf:Description rdf:about="">
  <base:isDefinedBy
    rdf:resource="%ex;/definition%20of%20subject"
  />
</rdf:Description>

For an issue of serialization, this is a really big
goof!  Reasoning shouldn't be needed for such issues. 
It requires more complicated processors and "pollutes"
the graph.  Why wasn't something like the following
added to rdf/xml:

<rdf:description rdf:about="">
  <rdf:link
    rdf:name="&ex;is%20defined%20by"
    rdf:resource="%ex;/definition%20of%20subject"
  />
</rdf:description>

RDF/XML 2.0 should definitely have something to
correct this issue.

--
Jimmy Cerra

[1] Given:
<!DOCTYPE rdf:RDF [
  <!ENTITY rdf
    "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  >
  <!ENTITY owl
    "http://www.w3.org/2002/07/owl#"
  >
  <!ENTITY ex
    "http://example.com/schema-uri/"
  >
  <!ENTITY base
    "http://.example.com/base-uri/"
]>
<rdf:RDF
  xml:base="%base;"
  xmlns:base="%base;"
  xmlns:ex="&ex;"
  xmlns:owl="&owl;"
  xmlns:rdf="&rdf;"
>


		
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Received on Monday, 20 December 2004 21:17:06 GMT

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