Date& Date::addDays(int n)
{
if(n>0)
{
if(n<=getDaysLeftOfMonth())
{
d+=n;
}
else
{
n-=getDaysLeftOfMonth()+1;
addMonths(1);
d=1;
addDays(n);
}
}
else
{
if(abs(n)<getDaysPassedOfMonth())
{
d+=n;
}
else
{
n+=getDaysPassedOfMonth();
addMonths(-1);
d=getDaysOfMonth();
addDays(n);
}
}
return *this;
}
void
Date::addTime(std::string time, std::string unit)
{
Split splt;
// default for units: inherent units
if( unit.size() == 0 )
unit = unitStr;
// It is save to append units (even if empty) to time
// Note: time-unit overrules parameter unit.
time += unit;
// Split string at positions where digits and characters alternate.
splt.setSeparator(":alnum:");
splt = time ;
// If there is a mix of digits and non-digits, splt.size() >= 2:
// isNonDigit && size == 1 is an error.
// size == 0 is an error.
// But, for !isNonDigit && size == 1 we got the default
bool isNon = ! hdhC::isDigit(time);
if( (splt.size() == 1 && isNon) || (splt.size() == 0) )
{
std::ostringstream ostr(std::ios::app);
ostr << "Date::addTime()"
<< "\nerror in 2nd parameter (time=" << time << ")" ;
exceptionError( ostr.str() );
}
// unitStr and int strings are empty.
// Pure digits are always converted to days.
if( splt.size() == 1 )
{
addDays( splt.toDouble(0) ) ;
return;
}
std::string str(splt[1]);
if( str[0] == 'y' )
addYears( splt.toDouble(0) );
else if( str.substr(0,2) == "mo" )
addMonths( splt.toDouble(0) );
else if( str[0] == 'd' )
addDays( splt.toDouble(0) );
else if( str[0] == 'h' )
addHours( splt.toDouble(0) );
else if( str.substr(0,2) == "mi" )
addMinutes( splt.toDouble(0) );
else if( str[0] == 's' )
addSeconds( splt.toDouble(0) );
return;
}
void
Date::addTime(double time, std::string unit)
{
if( unit.size() == 0 )
unit = unitStr;
if( unit[0] == 'y' )
addYears( time );
else if( unit.substr(0,2) == "mo" )
addMonths( time );
else if( unit[0] == 'd' )
addDays( time );
else if( unit[0] == 'h' )
addHours( time );
else if( unit.substr(0,2) == "mi" )
addMinutes( time );
else if( unit[0] == 's' )
addSeconds( time );
else // the default
addDays( time );
return;
}