public void configureRules() {
validateIsoCode();
i18n = new I18n(_code);
IToken keyword= new Token(new TextAttribute(manager.getColor(GherkinColors.KEYWORD)));
IToken step= new Token(new TextAttribute(manager.getColor(GherkinColors.STEP)));
IToken string= new Token(new TextAttribute(manager.getColor(GherkinColors.STRING)));
IToken comment= new Token(new TextAttribute(manager.getColor(GherkinColors.COMMENT)));