for that. That's how <a href="http://boost-spirit.com" target="_top">Spirit</a>
          is designed.
        </p>
<p>
          The <span class="emphasis"><em>what</em></span> function simply wraps the output of the subject
          in a "kleene<span class="quote">&#8220;<span class="quote">... "</span>&#8221;</span>".
        </p>
<p>
          Ok, now, like the <code class="computeroutput"><span class="identifier">int_parser</span></code>,
          we have to hook our parser to the <span class="underl