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FunctX XSLT Functions

functx:depth-of-node

The depth (level) of a node in an XML tree

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Description

The functx:depth-of-node function returns the level of a node within a document, as an integer. 1 represents the root node, 2 is a child of the root, etc. If $node is a document node, the document node itself counts as the first level.

Arguments and Return Type

NameTypeDescription
$node node()? the node to check
return value xs:integer

XSLT Function Declaration

See XQuery definition.
XSLT 2.0 Syntax:
<xsl:function name="functx:depth-of-node" as="xs:integer"
              xmlns:functx="http://www.functx.com" >
  <xsl:param name="node" as="node()?"/>

  <xsl:sequence select="
   count($node/ancestor-or-self::node())
 "/>

</xsl:function>

Examples

<xsl:variable name="in-xml" as="item()*">
<authors>
   <author>
      <fName>Kate</fName>
      <lName>Jones</lName>
   </author>
   <author>
      <fName>John</fName>
      <lName>Doe</lName>
   </author>
</authors>
</xsl:variable>
XSLT ExampleResults
functx:depth-of-node($in-xml)
1
functx:depth-of-node($in-xml/author[1])
2
functx:depth-of-node(
     $in-xml/author[1]/fName/text())
4

See Also

functx:max-depthThe maximum depth of elements in an XML tree

History

Published OnLast UpdatedContributor(s)
2006-06-272007-02-26Priscilla Walmsley, Datypic, pwalmsley@datypic.com, http://www.datypic.com
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