functions.</p>
<p><img src="theme/lens.gif" width="15" height="16"><b> <a name="exhaustive_rd"></a>Exhaustive 
  backtracking and greedy RD</b></p>
<p>Spirit doesn't do exhaustive backtracking like regular expressions are expected 
  to. For example:</p>
<pre>    <span class="special">*</span>chlit_p<span class="special">(</span><span class="quotes">'a'</span><span class="special">) &gt;&gt;</span> chlit_p<span class="special">(</span><span class="quotes">'a'</span><span class="special">);</span></pre>
<p>w