      
  </dt><dd>Place constants for non-terminals into the  symbol constant class.
      The parser does not need these symbol constants, so they are not normally
      output.  However, it can be very helpful to refer to these constants
      when debugging a generated parser.

  </dd><dt><tt>-expect</tt> <i>number</i>      
  </dt><dd>During parser construction the system may detect that an ambiguous 
      situation would occur at runtime.  This is called a <i>conflict</i>.  
      In general, the pars