p:try 027 (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" sequence="true"/>
   <p:try>
      <p:output port="result"/>
      <p:identity>
         <p:with-input>
            <doc/>
         </p:with-input>
      </p:identity>
      <p:catch name="catch">
         <p:output port="result" primary="true"/>
         <p:output port="catcher">
            <p:empty/>
         </p:output>
         <p:identity>
            <p:with-input pipe="error@catch"/>
         </p:identity>
      </p:catch>
      <p:finally>
         <p:output port="catcher" primary="false" pipe="@finally"/>
         <p:identity name="finally">
            <p:with-input>
               <finally1/>
            </p:with-input>
         </p:identity>
      </p:finally>
   </p:try>
</p:declare-step>