pan><span class="special">(</span><span class="identifier">start</span><span class="special">,</span> <span class="identifier">name</span><span class="special">)</span>
    <span class="special">{</span>
        <span class="comment">// Rule definitions</span>
        <span class="identifier">start</span> <span class="special">=</span> <span class="comment">/* ... */</span><span class="special">;</span>
    <span class="special">}</span>

    <span class="identifier">rule</span><span class="special">&lt;</s