class="emphasis"><em>Spirit.Karma</em></span> is the Yang to <span class="emphasis"><em>Spirit.Qi</em></span>'s
      Yin, it's almost like a mirrored picture.
    </p>
<p>
      <span class="emphasis"><em>Spirit.Lex</em></span> is (as the name implies) a library allowing
      to write lexical analyzers. These are either usable stand alone or can be used
      as a front end for <span class="emphasis"><em>Spirit.Qi</em></span> parsers. If you know flex
      you shouldn't have problems understanding <span 