 parsers)</p></td>
  </tr>
  <tr>
    <td height="27" class="table_cells"><tt>BOOST_SPIRIT_DEBUG_FLAGS_TREES</tt></td>
    <td class="table_cells"><p>print information about parse trees and AST's (general
        for all tree parsers)</p></td>
  </tr>
  <tr>
    <td height="27" class="table_cells"><tt>BOOST_SPIRIT_DEBUG_FLAGS_CLOSURES</tt></td>
    <td class="table_cells">print information about closures (general for all
      parsers with closures)</td>
  </tr>
  <tr>
    <td height="27" class="table_cells