FunctX XSLT Functions

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

functx:distinct-element-names

The distinct names of all elements in an XML fragment

Description

The functx:distinct-element-names function returns the distinct set of element names that exist in $nodes or among the descendants of $nodes.

Arguments and Return Type

Name	Type	Description
`$nodes`	`node()*`	the root(s) to start from
return value	`xs:string*`

XSLT Function Declaration

See XQuery definition.

XSLT 2.0 Syntax:

<xsl:function name="functx:distinct-element-names" as="xs:string*" 
              xmlns:functx="http://www.functx.com" >
  <xsl:param name="nodes" as="node()*"/> 
 
  <xsl:sequence select=" 
   distinct-values($nodes/descendant-or-self::*/name(.))
 "/>
   
</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 Example	Results
`functx:distinct-element-names($in-xml)`	`('authors', 'author', 'fName', 'lName')`
`functx:distinct-element-names( $in-xml/author[1])`	`('author', 'fName', 'lName')`