FunctX XQuery Function Library > XML Namespaces and Names > Names >

fn:namespace-uri

The namespace URI of a node

Description

The fn:namespace-uri function returns the namespace part of the element or attribute name. This is the namespace that is mapped to its prefix, or the default namespace if it is unprefixed. If the element or attribute name is not in a namespace, a zero-length string is returned.

This description is © Copyright 2007, Priscilla Walmsley. It is excerpted from the book XQuery by Priscilla Walmsley, O'Reilly, 2007. For a complete explanation of this function, please refer to Appendix A of the book.

Arguments and Return Type

Examples

declare namespace pre = "http://datypic.com/pre";
declare namespace unpre = "http://datypic.com/unpre";

<noNamespace>
     <pre:prefixed xmlns="http://datypic.com/unpre"
              xmlns:pre="http://datypic.com/pre">
       <unprefixed pre:prefAttr="a" noNSAttr="b">123</unprefixed>
     </pre:prefixed>
   </noNamespace>

namespace-uri($in-xml)

namespace-uri($in-xml//pre:prefixed)

http://datypic.com/pre

namespace-uri($in-xml//unpre:unprefixed)

http://datypic.com/unpre

namespace-uri($in-xml//@pre:prefAttr)

http://datypic.com/pre

namespace-uri($in-xml//@noNSAttr)

See Also

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