span>
</pre>
<p>
          Note that this is a case where the parentheses are necessary. The Kleene
          star encloses the complete expression above.
        </p>
<h6>
<a name="spirit.qi.tutorials.warming_up.h4"></a>
          <span class="phrase"><a name="spirit.qi.tutorials.warming_up.let_s_parse_"></a></span><a class="link" href="warming_up.html#spirit.qi.tutorials.warming_up.let_s_parse_">Let's
          Parse!</a>
        </h6>
<p>
          We're done with defining the parser. So the next step is