FunctX XSLT Function Library > XML Elements and Attributes > Testing XML Content >

functx:has-empty-content

Whether an element has empty content

Description

The functx:has-empty-content function returns true if the element has no content at all (not even whitespace.) This is in contrast to the fn:empty function, which will return true for any element regardless of whether it has any content.

To test whether an element has any content besides whitespace, see the functx:all-whitespace function.

Arguments and Return Type

XSLT Function Declaration

<xsl:function name="functx:has-empty-content" as="xs:boolean" 
              xmlns:functx="http://www.functx.com" >
  <xsl:param name="element" as="element()"/> 
 
  <xsl:sequence select=" 
   not($element/node())
 "/>
   
</xsl:function>

Examples

<in-xml>
   <a></a>
   <b/>
   <c>   </c>
   <d>xml</d>
   <e><x>xml</x></e>
   <f>mixed <x>xml</x></f>
   <g> <x>xml</x>  </g>
</in-xml>

functx:has-empty-content($in-xml/a)

true

functx:has-empty-content($in-xml/b)

true

functx:has-empty-content($in-xml/c)

false

functx:has-empty-content($in-xml/d)

false

functx:has-empty-content($in-xml/e)

false

functx:has-empty-content($in-xml/f)

false

functx:has-empty-content($in-xml/g)

false

See Also

History