Can someone convert this function in MSXSL:script to R

This allows for a nodeset put into a variable to be applied a XPath upon.

Thanks!!!

 <msxsl:script implements-prefix="nodeselection" language="jscript">
 <![CDATA[
   function selectNodes(nsetCtxt, strExpr)
   {
    // Evaluating strExpr must result in a node-set (unfortunately there is
currently no evalExpr method on the MSDOM)
    return nsetCtxt.nextNode().selectNodes(strExpr);
   }
 ]]>
 </msxsl:script>



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