/// <summary>
/// Check date for correct format and validness.
/// </summary>
/// <param name="input">String in the format yyyy.mm.dd</param>
/// <param name="calendar">Indicates type of calendar, possible values SE_JUL_CAL and SE_GREG_CAL</param>
/// <returns>Validated item</returns>
public static ValidationItem checkDate(String input, int calendar)
{
ValidationItem vi = new ValidationItem(input, false);
bool result = true;
try {
input = input.Trim();
vi.resultTxt = input;
if (input.Length != 10)
{
result = false;
}
else if (!Char.IsDigit(input[0]) ||
!Char.IsDigit(input[1]) ||
!Char.IsDigit(input[2]) ||
!Char.IsDigit(input[3]) ||
!input[4].Equals('.') ||
!Char.IsDigit(input[5]) ||
!Char.IsDigit(input[6]) ||
!input[7].Equals('.') ||
!Char.IsDigit(input[8]) ||
!Char.IsDigit(input[9]))
{
result = false;
}
else
{
int d = Convert.ToInt32(input.Substring(8, 2));
int m = Convert.ToInt32(input.Substring(5, 2));
int y = Convert.ToInt32(input.Substring(0, 4));
double ut = 0.0;
double jd = Sweph.getJD(y, m, d, ut, calendar);
if (d != Sweph.getDayFromJd(jd, calendar) || m < 1 || m > 12)
{
result = false;
}
}
vi.noErrors = result;
}
catch {
vi.resultTxt = input;
vi.noErrors = false;
}
return(vi);
}
