n></code>
            generators:
          </p>
<p>
</p>
<pre class="programlisting"><span class="identifier">symbols</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">,</span> <span class="keyword">char</span> <span class="keyword">const</span><span class="special">*&gt;</span> <span class="identifier">sym</span><span class="special">;</span>

<span class="identifier">sym</span><span class="special">.</span><span class="identifier">add</span>
    <span class="sp