public static bool TryParse(string startTime, string endTime, DateTime epoch, out DateRange result)
{
result = null;
switch (startTime.Trim().Length)
{
//Year
case 4:
{
if (!int.TryParse(startTime, out var y1))
{
return(false);
}
if (y1 < 1 || y1 > 9999)
{
return(false);
}
if (!int.TryParse(endTime, out var y2))
{
return(false);
}
if (y2 < 1 || y2 > 9999)
{
return(false);
}
result = new DateRange(new DateTime(y1, 1, 1, 0, 0, 0, epoch.Kind), new DateTime(y2, 1, 1, 0, 0, 0, epoch.Kind));
return(true);
}
//Month
case 7:
{
if (!DateTime.TryParse(startTime, out var v1))
{
return(false);
}
if (!DateTime.TryParse(endTime, out var v2))
{
return(false);
}
result = new DateRange(v1, v2, DateTimeTypeEnum.Month, epoch);
return(true);
}
//Time
case 8:
{
if (!DateTime.TryParse(startTime, out var v1))
{
return(false);
}
if (!DateTime.TryParse(endTime, out var v2))
{
return(false);
}
result = new DateRange(v1, v2, DateTimeTypeEnum.Time, epoch);
return(true);
}
//Date
case 10:
{
if (!DateTime.TryParse(startTime, out var v1))
{
return(false);
}
if (!DateTime.TryParse(endTime, out var v2))
{
return(false);
}
result = new DateRange(v1, v2, DateTimeTypeEnum.Date, epoch);
return(true);
}
//DateTime
default:
{
if (!DateTime.TryParse(startTime, out var v1))
{
return(false);
}
if (!DateTime.TryParse(endTime, out var v2))
{
return(false);
}
result = new DateRange(v1, v2, DateTimeTypeEnum.DateTime, epoch);
return(true);
}
}
}
public static bool TryParse(string[] input, out DateRange result)
{
result = null;
return(input.Length == 2 && TryParse(input[0], input[1], DefaultEpoch, out result));
}