djpowell.net

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Namespace Splitter for GRDDL

An XSLT transform for splitting RDF URIs into valid namespaces and element names, with full support for IRIs. This should be useful for GRDDL transforms where arbitary predicates need to be converted to RDF/XML property elements.


UPDATED 2007-03-05 - changed URLs

UPDATED 2007-02-24 - fixed extenders and combiners

RDF/XML requires predicates to be represented as a namespaced XML element or attribute. This requires the predicate IRI to be split at an arbitary place into a namespace URI and an XML NCName. The problem is that the predicate can actually be an IRI; and the namespace IRI and local-name must both be valid. This requires the position to be chosen carefully.

This transform implements the algorithm to split an IRI in pure XSLT 1.0: http://djpowell.net/schemas/treetriples/1/xslt/splitns.xsl. WARNING - this transform contains a large table of Unicode characters which may take a long time to render in your browser or editor. Also note that the transform is encoded in UTF-16.

Also provided are some test cases which will run in your browser. (Don't worry, the transform loads quickly when called by a client, it is just rendering it that is slow). The test cases are here, and are implemented using this test stylesheet.

This transform should be very useful for GRDDL transforms.


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Last updated: 5th March 6:48 PM (+0000)