URIValidator validates that XML content is a W3C uri type,
according to RFC 2396
author: Ted Leung author: Jeffrey Rodriguez author: Mark Swinkles - List Validation refactoring See Also: RFC See Also: 2396 See Also: Tim See Also: Berners-Lee, et. al. RFC 2396: Uniform Resource Identifiers (URI): Generic Syntax.. 1998 Available at: http://www.ietf.org/rfc/rfc2396.txt version: $Id: AnyURIDatatypeValidator.java,v 1.6 2001/06/05 20:37:46 elena Exp $