         expr:e1 MOD expr:e2 
	      {: RESULT = new Integer(e1.intValue() % e2.intValue()); :} 
	      | 
              NUMBER:n                 
	      {: RESULT = n; :} 
	      | 
              MINUS expr:e             
	      {: RESULT = new Integer(0 - e.intValue()); :} 
	      %prec UMINUS
	      | 
              LPAREN expr:e RPAREN     
	      {: RESULT = e; :} 
	      ;
</tt></pre>
<hr><br>
Here we can see several changes.  Most importantly, code to be executed at 
various points in the parse is in