strange treatment of namespaces in RDF/XML from Peter F. Patel-Schneider on 2003-06-04 (www-rdf-comments@w3.org from April to June 2003) (original) (raw)

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Wed, 04 Jun 2003 12:24:26 -0400 (EDT)
To: www-rdf-comments@w3.org
Message-Id: 20030604.122426.25303794.pfps@research.bell-labs.com

From http://www.w3.org/TR/rdf-syntax-grammar/, Section 5.1

Within RDF/XML documents it is not permitted to use XML namespaces
whose namespace URI is either:
- the RDF Namespace URI Reference concatenated with additional
   characters or 
- the XML Namespace URI Reference concatenated with additional
  characters.

So ... xmlns:xm = "http://www.w3.org/XML/1998/namesp" ... rdf:about="ace#hi" ... is legal, as is ... xmlns:xmx = "http://www.w3.org/XML/1998/namespace" ... rdf:about="#hi" ... but ... xmlns:xmxx = "http://www.w3.org/XML/1998/namespace#h" ... rdf:about="i" ... is not.

Also, ... xmlns:rd = "http://www.w3.org/1999/02/22-rdf-syntax-n" ... rdf:about="s#hi" ... is legal, as is ... xmlns:rdf = "http://www.w3.org/1999/02/22-rdf-syntax-ns#" ... rdf:about="hi" ... but ... xmlns:rdx = "http://www.w3.org/1999/02/22-rdf-syntax-ns#h" ... rdf:about="i" ... is not.

Weird.

Is this desirable behaviour?

Peter F. Patel-Schneider Bell Labs Research Lucent Technologies

Received on Wednesday, 4 June 2003 12:24:37 UTC