Synopsis

<p:declare-step type="p:add-attribute">
     <p:input port="source"/>
     <p:output port="result"/>
     <p:option name="match" required="true"/>                      <!-- XSLTMatchPattern -->
     <p:option name="attribute-name" required="true"/>             <!-- QName -->
     <p:option name="attribute-prefix"/>                           <!-- NCName -->
     <p:option name="attribute-namespace"/>                        <!-- anyURI -->
     <p:option name="attribute-value" required="true"/>            <!-- string -->
</p:declare-step>