code: public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
    {
      XMLString s1 = getArg0AsString(xctxt);
  
      return (XString)s1.fixWhiteSpace(true, true, false);
    }
docs: Execute the function.  The function must return
  a valid object.
  @param xctxt The current execution context.
  @return A valid XObject.
  
  @throws javax.xml.transform.TransformerException