Port=source:
<p:pipeline name="pipeline" xmlns:p="http://www.w3.org/2007/03/xproc"> <p:input port="source"/> <p:output port="result"/> <p:unwrap> <p:option name="target" value="p:unwrap"/> </p:unwrap> </p:pipeline>
<p:pipeline name="pipeline" xmlns:p="http://www.w3.org/2007/03/xproc"> <p:input port="source"/> <p:output port="result"/> <p:unwrap> <p:option name="target" value="p:unwrap"/> </p:unwrap> </p:pipeline>
Port=result:
<p:pipeline xmlns:p="http://www.w3.org/2007/03/xproc" name="pipeline"> <p:input port="source"/> <p:output port="result"/> <p:option value="p:unwrap" name="target"/> </p:pipeline>