unpack-datetime
xod/datetime/unpack-datetime
Destructs a datetime value into a year, month, day, weekday, hour, minute, and second
unpack-datetime
@/unpack-datetime
Destructs a datetime value into a year, month, day, weekday, hour, minute, and second
IN@/datetime
MINnumber
Minutes value in range [0, 59]
SECnumber
Seconds value in range [0, 59]
HOURnumber
Hours value in range [0, 23]
DAYnumber
Days value in range [1, 28-31]
WDAYnumber
Day of the week value in range [1, 7]. Count starts from Monday
MONnumber
Month value in range [1, 12]
YEARnumber
Year value in range [1970, 2105]
C++ implementation
node {
bool isLeapYear(int y) {
return (1970 + y > 0) && !((1970 + y) % 4) && (((1970 + y) % 100) || !((1970 + y) % 400));
}
void evaluate(Context ctx) {
auto time = getValue<input_IN>(ctx);
static const uint8_t monthDays[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
emitValue<output_SEC>(ctx, time % 60);
time /= 60;
emitValue<output_MIN>(ctx, time % 60);
time /= 60;
emitValue<output_HOUR>(ctx, time % 24);
time /= 24;
uint8_t zwday = (time + 4) % 7;
emitValue<output_WDAY>(ctx, zwday ? zwday : 7);
uint16_t year = 0;
uint32_t days = 0;
while ((days += (isLeapYear(year) ? 366 : 365)) <= time) {
year++;
}
emitValue<output_YEAR>(ctx, year + 1970);
bool leap = isLeapYear(year);
days -= leap ? 366 : 365;
time -= days;
uint8_t month = 0, monthLength = 0;
days = 0;
constexpr uint8_t february = 1;
for (month = 0; month < 12; month++) {
monthLength = (month == february) ? (leap ? 29 : 28) : monthDays[month];
if (time >= monthLength) {
time -= monthLength;
} else {
break;
}
}
emitValue<output_MON>(ctx, month + 1);
emitValue<output_DAY>(ctx, time + 1);
}
}