CalDavSynchronizer.DDayICalWorkaround.CalendarDataPreprocessor.FixInvalidDTSTARTInTimeZoneNoThrow C# (CSharp) Метод

    public static string FixInvalidDTSTARTInTimeZoneNoThrow (string iCalendarData)
    {
      if (string.IsNullOrEmpty (iCalendarData))
        return iCalendarData;

      try
      {
        string fixedIcalendarData = iCalendarData;

        for (
            var timeZoneMatch = Regex.Match (iCalendarData, "BEGIN:VTIMEZONE\r?\n(.|\n)*?END:VTIMEZONE\r?\n", RegexOptions.RightToLeft);
            timeZoneMatch.Success;
            timeZoneMatch = timeZoneMatch.NextMatch())
        {
          var fixedTimeZone = timeZoneMatch.Value.Replace ("DTSTART:00010101", "DTSTART:19700101");
          fixedIcalendarData = fixedIcalendarData.Replace (timeZoneMatch.Value, fixedTimeZone);
        }
        return fixedIcalendarData;
      }
      catch (Exception x)
      {
        s_logger.Error ("Could not process calender data. Using original data", x);
        return iCalendarData;
      }
    }