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The contains() function

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The contains() XPath 2.0 function returns true if the string arg1 contains arg2 as substring, otherwise false.

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boolean fn:contains(arg1, string arg2)

Parameters:

  • arg1: a node reference or string literal.
  • string arg2.

Example

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<html xmlns="http://www.w3.org/1999/xhtml" 
 xmlns:xf="http://www.w3.org/2002/xforms" 
 xmlns:fn="http://www.w3.org/2005/xpath-functions">
 <head>
  <title>Example</title>
  <xf:model>
   <xf:instance>
    <data xmlns="">
     <alphabet>abcdefghi</alphabet>
    </data>
   </xf:instance>
  </xf:model>
 </head>
 <body>
  <xf:group>
   <xf:output value="fn:contains(alphabet, 'b')" />
   <xf:output value="fn:contains('abcd', 'b')" />
   <xf:output value="fn:contains(alphabet, 'q')" />
   <xf:output value="fn:contains('abcd', 'q')" />
  </xf:group>
 </body>
</html>

The result will be:

true
true
false
false


Namespace

This function is available within the XPath 2.0 namespace (http://www.w3.org/2005/xpath-functions).

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