p:namespace-rename-018 (AB)

The pipeline

<p:declare-step xmlns:err="http://www.w3.org/ns/xproc-error" xmlns:p="http://www.w3.org/ns/xproc" version="3.0">
   <p:output port="result"/>
   <p:namespace-rename from="http://www.example.com/ns">
      <p:with-input>
         <doc xmlns:x="http://www.example.com/ns" x:a="5" a="5"/>
      </p:with-input>
   </p:namespace-rename>
</p:declare-step>