private Phrase getPhrase(string text)
{
if (string.IsNullOrEmpty(text))
return CalendarAttributes.Font.FontSelector.Process(string.Empty);
if (CalendarAttributes.CalendarType == CalendarType.GregorianCalendar)
return CalendarAttributes.Font.FontSelector.Process(text);
return CalendarAttributes.Font.FontSelector.Process(text.ToPersianNumbers().FixWeakCharacters());
}