p:xquery 005 (AB)

The pipeline

<p:declare-step xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
   <p:input port="source"/>
   <p:output port="result"/>
   <p:xquery xmlns:test="http://www.test.com" parameters="map{'str' : 'Will', 'test:str' : 'Chris'}">
      <p:with-input port="query">
         <c:query xmlns:c="http://www.w3.org/ns/xproc-step">
                  declare namespace test = "http://www.test.com";
                  declare variable $str external;
                  declare variable $test:str external;
                  
                  for $author in //author[contains(firstname, $str) or contains(firstname, $test:str)]
                  order by $author/firstname
                  return $author
               </c:query>
      </p:with-input>
   </p:xquery>
   <p:wrap-sequence wrapper="wrapper"/>
</p:declare-step>