FString FDateTime::ToString( const TCHAR* Format ) const
{
FString Result;
if (Format != nullptr)
{
while (*Format != TCHAR('\0'))
{
if ((*Format == TCHAR('%')) && (*(++Format) != TCHAR('\0')))
{
switch (*Format)
{
case TCHAR('a'): Result += IsMorning() ? TEXT("am") : TEXT("pm"); break;
case TCHAR('A'): Result += IsMorning() ? TEXT("AM") : TEXT("PM"); break;
case TCHAR('d'): Result += FString::Printf(TEXT("%02i"), GetDay()); break;
case TCHAR('D'): Result += FString::Printf(TEXT("%03i"), GetDayOfYear()); break;
case TCHAR('m'): Result += FString::Printf(TEXT("%02i"), GetMonth()); break;
case TCHAR('y'): Result += FString::Printf(TEXT("%02i"), GetYear() % 100); break;
case TCHAR('Y'): Result += FString::Printf(TEXT("%04i"), GetYear()); break;
case TCHAR('h'): Result += FString::Printf(TEXT("%02i"), GetHour12()); break;
case TCHAR('H'): Result += FString::Printf(TEXT("%02i"), GetHour()); break;
case TCHAR('M'): Result += FString::Printf(TEXT("%02i"), GetMinute()); break;
case TCHAR('S'): Result += FString::Printf(TEXT("%02i"), GetSecond()); break;
case TCHAR('s'): Result += FString::Printf(TEXT("%03i"), GetMillisecond()); break;
default: Result += *Format;
}
}
else
{
Result += *Format;
}
// move to the next one
Format++;
}
}
return Result;
}
int GetFirstDOW() {
int dow=GetDayOfWeek()-(GetDayOfYear() % 7)+21;
while (dow>6) dow-=7;
return dow;
}
