      order to keep an easy-to-read, consistent and aesthetically pleasing look
        to the Spirit code, the following coding style guide is advised.
      </p>
<p>
        This coding style is adapted and extended from the ANTLR/PCCTS style and
        <a href="http://www.boost.org/development/requirements.html" target="_top">Boost Library
        Requirements and Guidelines</a> and is the combined work of Joel de Guzman,
        Chris Uzdavinis, and Hartmut Kaiser.
      </p>
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