 workings of <span class="emphasis"><em>Spirit.Qi</em></span> parsers, using real code
          from the <a href="http://boost-spirit.com" target="_top">Spirit</a> library as
          examples. On the other hand, here is no reason to fear reading on, though.
          We tried to explain things step by step while highlighting the important
          insights.
        </p>
<p>
          The <code class="computeroutput"><a class="link" href="../../qi/reference/parser_concepts/parser.html" title="Parser"><co