init with {: System.err.println("Grammaires de Liste"); :}
action code {:
       void PRN(int n) {  System.out.print(n+" "); }   
       void PRN()      {  System.out.print(" vide "); }
:}

terminal NL,COMMA, SEMI;
terminal Integer ENTIER;
nonterminal lines, list, list0;

lines ::= /* vide */
      | lines list  {: System.out.println("OK");  :}  NL
      | lines error {: System.out.println("BAD"); :}  NL
;

list ::= list0 ;

list0 ::= ENTIER:n      {: PRN(n); :}
;