ass="identifier">Iterator</span><span class="special">,</span> <span class="identifier">Signature</span><span class="special">&gt;</span> <span class="identifier">r</span><span class="special">;</span>
</pre>
<p>
          or
        </p>
<pre class="programlisting"><span class="identifier">rule</span><span class="special">&lt;</span><span class="identifier">Iterator</span><span class="special">,</span> <span class="identifier">Signature</span><span class="special">,</span> <span class="identifier">Skipper<