void DateTimeFormatter::append(std::string& str, const DateTime& dateTime, const std::string& fmt, int timeZoneDifferential)
{
std::string::const_iterator it = fmt.begin();
std::string::const_iterator end = fmt.end();
while (it != end)
{
if (*it == '%')
{
if (++it != end)
{
switch (*it)
{
case 'w': str.append(DateTimeFormat::WEEKDAY_NAMES[dateTime.dayOfWeek()], 0, 3); break;
case 'W': str.append(DateTimeFormat::WEEKDAY_NAMES[dateTime.dayOfWeek()]); break;
case 'b': str.append(DateTimeFormat::MONTH_NAMES[dateTime.month() - 1], 0, 3); break;
case 'B': str.append(DateTimeFormat::MONTH_NAMES[dateTime.month() - 1]); break;
case 'd': NumberFormatter::append0(str, dateTime.day(), 2); break;
case 'e': NumberFormatter::append(str, dateTime.day()); break;
case 'f': NumberFormatter::append(str, dateTime.day(), 2); break;
case 'm': NumberFormatter::append0(str, dateTime.month(), 2); break;
case 'n': NumberFormatter::append(str, dateTime.month()); break;
case 'o': NumberFormatter::append(str, dateTime.month(), 2); break;
case 'y': NumberFormatter::append0(str, dateTime.year() % 100, 2); break;
case 'Y': NumberFormatter::append0(str, dateTime.year(), 4); break;
case 'H': NumberFormatter::append0(str, dateTime.hour(), 2); break;
case 'h': NumberFormatter::append0(str, dateTime.hourAMPM(), 2); break;
case 'a': str.append(dateTime.isAM() ? "am" : "pm"); break;
case 'A': str.append(dateTime.isAM() ? "AM" : "PM"); break;
case 'M': NumberFormatter::append0(str, dateTime.minute(), 2); break;
case 'S': NumberFormatter::append0(str, dateTime.second(), 2); break;
case 's': NumberFormatter::append0(str, dateTime.second(), 2);
str += '.';
NumberFormatter::append0(str, dateTime.millisecond()*1000 + dateTime.microsecond(), 6);
break;
case 'i': NumberFormatter::append0(str, dateTime.millisecond(), 3); break;
case 'c': NumberFormatter::append(str, dateTime.millisecond()/100); break;
case 'F': NumberFormatter::append0(str, dateTime.millisecond()*1000 + dateTime.microsecond(), 6); break;
case 'z': tzdISO(str, timeZoneDifferential); break;
case 'Z': tzdRFC(str, timeZoneDifferential); break;
default: str += *it;
}
++it;
}
}
else str += *it++;
}
}
std::string DateTimeFormatter::format(const DateTime& dateTime, const std::string& fmt, int timeZoneDifferential)
{
std::string result;
std::string::const_iterator it = fmt.begin();
std::string::const_iterator end = fmt.end();
while (it != end)
{
if (*it == '%')
{
if (++it != end)
{
switch (*it)
{
case 'w': result.append(DateTimeFormat::WEEKDAY_NAMES[dateTime.dayOfWeek()], 0, 3); break;
case 'W': result.append(DateTimeFormat::WEEKDAY_NAMES[dateTime.dayOfWeek()]); break;
case 'b': result.append(DateTimeFormat::MONTH_NAMES[dateTime.month() - 1], 0, 3); break;
case 'B': result.append(DateTimeFormat::MONTH_NAMES[dateTime.month() - 1]); break;
case 'd': result.append(NumberFormatter::format0(dateTime.day(), 2)); break;
case 'e': result.append(NumberFormatter::format(dateTime.day())); break;
case 'f': result.append(NumberFormatter::format(dateTime.day(), 2)); break;
case 'm': result.append(NumberFormatter::format0(dateTime.month(), 2)); break;
case 'n': result.append(NumberFormatter::format(dateTime.month())); break;
case 'o': result.append(NumberFormatter::format(dateTime.month(), 2)); break;
case 'y': result.append(NumberFormatter::format0(dateTime.year() % 100, 2)); break;
case 'Y': result.append(NumberFormatter::format0(dateTime.year(), 4)); break;
case 'H': result.append(NumberFormatter::format0(dateTime.hour(), 2)); break;
case 'h': result.append(NumberFormatter::format0(dateTime.hourAMPM(), 2)); break;
case 'a': result.append(dateTime.isAM() ? "am" : "pm"); break;
case 'A': result.append(dateTime.isAM() ? "AM" : "PM"); break;
case 'M': result.append(NumberFormatter::format0(dateTime.minute(), 2)); break;
case 'S': result.append(NumberFormatter::format0(dateTime.second(), 2)); break;
case 'i': result.append(NumberFormatter::format0(dateTime.millisecond(), 3)); break;
case 'c': result.append(NumberFormatter::format(dateTime.millisecond()/100)); break;
case 'z': result.append(tzdISO(timeZoneDifferential)); break;
case 'Z': result.append(tzdRFC(timeZoneDifferential)); break;
default: result += *it;
}
++it;
}
}
else result += *it++;
}
return result;
}
