anchor.diff:      caseSensitive = false;
       caseSensitiveLiterals = false;
       charVocabulary = '\3'..'\177';
  +    defaultErrorHandler = false;
   }
   
   IDENTIFIER options { testLiterals=true; } :
  
positive.code:     exportVocab = Sql;
      k = 6;
      buildAST = true;
  }
  
  start_rule: sql (SEMI!)?;
  
negative.code:     exportVocab = Sql;
      k = 6;
      buildAST = true;
      defaultErrorHandler = false;
  }
  
  tokens {
  