forest grammar/tree regular expression for RDF

• From: Jonathan Borden <jborden@mediaone.net>
• Date: Thu, 21 Jun 2001 21:17:27 -0400
• To: <www-rdf-comments@w3.org>
• Cc: <www-rdf-interest@w3.org>
• Message-ID: <002601c0fab9$19fa9440$0201a8c0@ne.mediaone.net>

I hope the RDFCore WG will consider the forest grammar/tree regular
expression as a specification of the formal RDF XML syntax. The unordered
nature of RDF is best described as a forest grammar and this presents
difficulties for traditional XML schema languages such as DTDs.
I have specified this as a RELAXNG schema for RDF
https://www.openhealth.org/RDF/RDF1.rng in terms of solidifying the RDF XML
syntax under the issue:
https://www.w3.org/2000/03/rdf-tracking/#rdfms-formal-grammar
An advantage of specifying the grammar in this language is that it has a
good formal semantics which is based on the formal semantics of XDuce.
https://www.cis.upenn.edu/~hahosoya/xduce/ . Note that the XML Schema
formalism in https://www.w3.org/TR/xmlschema-formal appears to be based on
XDuce as well which is referenced.
Because I realize the politics around RELAXNG, I have converted this to the
language used by XDuce and by the XML Schema Formalism:
https://www.openhealth.org/RDF/RDFSyntaxFormal.
It is really quite simple.
Jonathan Borden
The Open Healthcare Group
https://www.openhealth.org

Received on Thursday, 21 June 2001 21:19:27 UTC