init with {:  System.err.println("Moyenne selon Turing"); :}

action code {: int nb_OK=0; :}

parser code {:  // deactivation des messages d'erreurs de syntaxe
     public void  syntax_error(java_cup.runtime.Symbol tok) {} 
       :}

terminal A, B, NL;
nonterminal axiome, lines, lang;

axiome ::= lines {: /* final action */
                    System.out.println(nb_OK + " lignes OK");
                 :}
;
lines ::= /* vide */
     | lines lang  NL {: nb_OK++; :}
     | lines error NL {: :}
;
lang ::= A B B A
;