>
</table>
<p>All of the parameters to list_p can be single characters, strings 
  or, if more complex parsing logic is required, auxiliary parsers, each of which 
  is automatically converted to the corresponding parser type needed for successful 
  parsing.</p>
<p>If the <tt>item</tt> parser is an <tt>action_parser_category</tt> type (parser 
  with an attached semantic action) we have to do something special. This happens, 
  if the user wrote something like:</p>
<pre><span class=special>    </span><span