FunctX XSLT Function Library > XML Elements and Attributes > XML Document Statistics >

functx:max-depth

The maximum depth of elements in an XML tree

Description

The functx:max-depth function returns the maximum level of elements within a document, as an integer. 1 represents the root, 2 is a child of the root, etc. If $root is a document node, it is counted as a level. Text and other kinds of nodes are not counted as a level.

Arguments and Return Type

XSLT Function Declaration

<xsl:function name="functx:max-depth" as="xs:integer?" 
              xmlns:functx="http://www.functx.com" >
  <xsl:param name="root" as="node()?"/> 
 
  <xsl:sequence select=" 
   if ($root/*)
   then max($root/*/functx:max-depth(.)) + 1
   else 1
 "/>
   
</xsl:function>

Examples

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

functx:max-depth($in-xml)

3

functx:max-depth($in-xml/author[1])

2

See Also

History