/**
* If timezone present - xmlnormalize dateTime [E Adding durations to dateTimes]
*
* @param date CCYY-MM-DDThh:mm:ss+03
* @return CCYY-MM-DDThh:mm:ssZ
*/
void TimeVal::xmlnormalize()
{
if ((parser_context.fValue[utc] == UTC_UNKNOWN) ||
(parser_context.fValue[utc] == UTC_STD) )
return;
int negate = (parser_context.fValue[utc] == UTC_POS)? -1: 1;
// add mins
int temp = parser_context.fValue[Minute] + negate * parser_context.fTimeZone[mm];
int carry = fQuotient(temp, 60);
parser_context.fValue[Minute] = mod(temp, 60, carry);
//add hours
temp = parser_context.fValue[Hour] + negate * parser_context.fTimeZone[hh] + carry;
carry = fQuotient(temp, 24);
parser_context.fValue[Hour] = mod(temp, 24, carry);
parser_context.fValue[Day] += carry;
while (1)
{
temp = maxDayInMonthFor(parser_context.fValue[CentYear], parser_context.fValue[Month]);
if (parser_context.fValue[Day] < 1)
{
parser_context.fValue[Day] += maxDayInMonthFor(parser_context.fValue[CentYear], parser_context.fValue[Month] - 1);
carry = -1;
}
else if ( parser_context.fValue[Day] > temp )
{
parser_context.fValue[Day] -= temp;
carry = 1;
}
else
{
break;
}
temp = parser_context.fValue[Month] + carry;
parser_context.fValue[Month] = modulo(temp, 1, 13);
parser_context.fValue[CentYear] += fQuotient(temp, 1, 13);
}
// set to xmlnormalized
parser_context.fValue[utc] = UTC_STD;
return;
}
static inline int modulo (int temp, int low, int high)
{
//modulo(a - low, high - low) + low
int a = temp - low;
int b = high - low;
return (mod (a, b, fQuotient(a, b)) + low) ;
}
int DateUtils::maximumDayInMonthFor(int year, int month) {
int M = modulo(month,1,13);
int Y = year + fQuotient(month,1,13);
if ( M == 1 || M == 3 || M == 5 || M == 7 || M == 8 || M == 10 || M == 12 )
return 31;
else if ( M == 4 || M == 6 || M == 9 || M == 11 )
return 30;
else if ( M == 2 && modulo(Y,4) == 0 && ( modulo(Y,400) == 0 || modulo(Y,100) != 0 ) )
return 29;
else
return 28;
}
static inline int fQuotient(int temp, int low, int high)
{
return fQuotient(temp - low, high - low);
}
int DateUtils::fQuotient(int a, int low, int high ) {
return fQuotient(a-low,high-low);
}
double DateUtils::modulo( double a, double b) {
return a - fQuotient(a, b)*b;
}
int DateUtils::modulo( int a, int b) {
return a - fQuotient(a, b)*b;
}
