n><span class="identifier">phoenix</span><span class="special">;</span>
</pre>
<p>
          </p>
<p>
            Basic <code class="computeroutput"><span class="identifier">eps</span></code>:
          </p>
<p>
</p>
<pre class="programlisting"><span class="identifier">test_parser</span><span class="special">(</span><span class="string">""</span><span class="special">,</span> <span class="identifier">eps</span><span class="special">);</span> <span class="comment">// always matches</span>
</pre>
<p>
        