- From: Seaborne, Andy <andy.seaborne@hp.com>
- Date: Wed, 05 Oct 2005 13:53:14 +0100
- To: "Miles, AJ (Alistair)" <A.J.Miles@rl.ac.uk>
- CC: Dan Connolly <connolly@w3.org>, public-rdf-dawg-comments@w3.org, dwood@mindswap.org
One small corollary: special cases are possible with custom fucntions. > (a) a standard function (or some other mechanism) for querying whether some > node is an element of some RDF list (i.e. something like isElementOfList(A, > B)) > >... and preferably also ... > >(b) a standard function (or some other mechanism) for returning the >numerical position of a node in an RDF list (i.e. something like > listPosition(A, B)) In the special case where A and B to be bound or constant, you might be able to write a custom filter function because the function just returns a boolean or integer. Depends on the implementation. The thing you can't do in a custom function would be to associate multiple possible values to variables. Andy
Received on Wednesday, 5 October 2005 12:55:05 UTC