- From: Seaborne, Andy <andy.seaborne@hp.com>
- Date: Tue, 06 Jun 2006 09:54:08 +0100
- To: Steve Harris <steve.harris@garlik.com>
- CC: dawg mailing list <public-rdf-dawg@w3.org>
Steve Harris wrote: > Is it correct that there's no equivalent URI for the qname looking > XPath functions, such as http://www.w3.org/TR/xpath-functions/#func- > dateTime-less-than ? A couple of problems: 1/ It's "op:dateTime-less-than" and op: isn't given a namespace URI. 2/ F&O states: """ The URIs of the namespaces and the default prefixes associated with them are: * http://www.w3.org/2001/XMLSchema for constructors -- associated with xs. * http://www.w3.org/2005/xpath-functions for functions -- associated with fn. * http://www.w3.org/2005/xpath-datatypes for the datatypes -- associated with xdt. * http://www.w3.org/2005/xqt-errors -- associated with err. """ so that makes fn:compare: http://www.w3.org/2005/xpath-functionscompare Ugh. The forms http://www.w3.org/TR/xpath-functions/#func-dateTime-less-than http://www.w3.org/TR/xpath-functions/#func-compare come from links into the F&O document. We could decide to use those as the URIs for the functions (no unique name assumption!) if that is http-range14-good. Is that common practice? > > It would sometimes be useful to call these explcitly, eg. sparql has > no built in equivalent to fn:compare(). I agree - I'd like to see a namespace and URIs for all the SPARQL functions. I've just come across a situation where I'd like to treat everything uniformly as a function call of some kind. > > - Steve Andy
Received on Tuesday, 6 June 2006 08:54:39 UTC