FunctX XSLT Functions

FunctX XSLT Function Library > XML Namespaces and Names > Querying >

fn:namespace-uri-for-prefix

The namespace associated with a prefix, in the scope of an element

Description

The fn:namespace-uri-for-prefix function returns the namespace mapped to $prefix, using the in-scope namespaces of $el e ment. If $prefix is a zero-length string or the empty sequence, the function returns the default namespace, if any.

This description is © Copyright 2007, O'Reilly Media. 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

Name	Type	Description
`$prefix`	`xs:string?`	the prefix to check for
`$element`	`element()`	the element to use as the scope
return value	`xs:anyURI?`

Examples

<xsl:stylesheet xmlns:pre="http://datypic.com/pre"
                xmlns:unpre="http://datypic.com/unpre" ...

<xsl:variable name="in-xml" as="item()*">

<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>

</xsl:variable>

XSLT Example	Results
`namespace-uri-for-prefix( '', $in-xml)`	`()`
`namespace-uri-for-prefix( 'pre',$in-xml)`	`()`
`namespace-uri-for-prefix( 'pre',$in-xml//pre:prefixed)`	`http://datypic.com/pre`
`namespace-uri-for-prefix( '',$in-xml//unpre:unprefixed)`	`http://datypic.com/unpre`
`namespace-uri-for-prefix( 'pre',$in-xml//unpre:unprefixed)`	`http://datypic.com/pre`

History

Published On	Last Updated	Contributor(s)
2006-06-27	2007-02-26	W3C, XQuery 1.0 and XPath 2.0 Functions and Operators, http://www.w3.org/TR/xpath-functions/

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