s no value.  a label referring to such a
symbol with have a null value. As of CUP 0.10j, you may specify
non-terminals the declaration "<code>nonterminal</code>" (note, no
space) as well as the original "<code>non terminal</code>" spelling.<p>

Names of terminals and non-terminals cannot be CUP reserved words;
these include "code", "action", "parser", "terminal", "non",
"nonterminal", "init", "scan", "with", "start", "precedence", "left",
"right", "nonassoc", "import", and "package".</p><p>

</p><h4><a name