- From: Dave Beckett <dave.beckett@bristol.ac.uk>
- Date: Mon, 04 Apr 2005 11:38:53 +0100
- To: public-rdf-in-xhtml-tf@w3.org
In a fit of coding enthusiasm just before going on vacation, I added GRDDL support to my Raptor RDF parser & serialiser library based on reading http://www.w3.org/2004/01/rdxh/spec quickly and using libxml2 and libxslt. It's only in raptor's CVS right now but you can try it out in the demo on the two examples I found: http://librdf.org/parse?uri=http%3A%2F%2Fwww.w3.org%2F2003%2F12%2Frdf- in-xhtml-xslts%2Fcomplete-example.html&language=grddl http://librdf.org/parse?uri=http%3A%2F%2Fwww.w3.org%2F2004%2Flambda% 2FSites%2Findex.html&language=grddl or enter your own URIs at http://librdf.org/parse and select parser GRDDL. I think it's doing the right thing but I didn't spend a lot of time checking. When multiple transforms are present, do they make one graph? I went with Yes. Should users be able to select them by parameter? I went with No. Are any XSLT parameters passed in? I went with No. It works by reading the source document (assumes it is XHTML) into a libxml2 document, then applying an XPath query: //html:html/html:head[@profile="http://www.w3.org/2003/g/data- view"]/html:link[@rel="transformation"]/@href where the prefix html: is defined to URI http://www.w3.org/1999/xhtml It then uses the resulting entries in the nodeset as relative URIs to the document of XSLT sheets, which are then fetched and applied with libxslt to the source libxml2 document, giving a new RDF/XML document which is parsed with raptor's RDF/XML parser to give RDF triples. Dave
Received on Monday, 4 April 2005 10:38:57 UTC