private void Arrange(string input)
{
var inputStream = new AntlrInputStream(input);
lexer = new Oc5Lexer(inputStream);
var commonTokenStream = new CommonTokenStream(lexer);
parser = new Oc5Parser(commonTokenStream);
StringWriter writer = new StringWriter();
errorListener = new Oc5ErrorListener(writer);
lexer.RemoveErrorListeners();
//lexer.addErrorListener(errorListener);
parser.RemoveErrorListeners();
parser.AddErrorListener(errorListener);
}
