FunctX XSLT Function Library > XML Nodes > Hierarchical Relationships >

functx:depth-of-node

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

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

XSLT Function Declaration

<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

<authors>
   <author>
      <fName>Kate</fName>
      <lName>Jones</lName>
   </author>
   <author>
      <fName>John</fName>
      <lName>Doe</lName>
   </author>
</authors>

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

History