Primary output ports...

Consider this pipeline:

  <p:identity>
    ...
  </p:identity>

  <p:exec>
    <p:input port="source"><p:empty/></p:input>
    <p:with-option name="args" select="string-join(//uri,' ')"/>
  </p:exec>

Is the primary output port of p:identity bound or not? It's not used by
the following step, but it is used by the with-option.

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <ndw@nwalsh.com> | Things work out best for those who make
http://nwalsh.com/            | the best of the way things work out.