"the", "aid", "of", "the", "party" }
</PRE>
      <P>Unfortunately enabling this feature has an impact on performance (even if you 
         don't use it), and a much bigger impact if you do use it, therefore to use this 
         feature you need to:</P>
      <UL>
         <LI>
            Define BOOST_REGEX_MATCH_EXTRA for all translation units including the library 
            source (the best way to do this is to uncomment this define in <A href="../../../boost/regex/user.hpp">
               boost/re