public static string toUTCString(object thisObj)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject date_obj = (DateObject)thisObj;
double val = date_obj.ms;
int year = DateConstructor.YearFromTime(val);
int month = DateConstructor.MonthFromTime(val);
int date = DateConstructor.DateFromTime(val);
int hour = DateConstructor.HourFromTime(val);
int min = DateConstructor.MinFromTime(val);
int sec = DateConstructor.SecFromTime(val);
DateTime dt;
try {
dt = new DateTime(year, month + 1, date);
} catch (ArgumentOutOfRangeException) {
return(InvalidDateString);
}
string date_string = dt.ToString("ddd, d MMM yyyy ", CultureInfo.InvariantCulture);
string time_string = String.Format(@"{0:00}:{1:00}:{2:00} UTC", hour, min, sec);
return(date_string + time_string);
}
public static double setUTCDate(object thisObj, double ddate)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject date = (DateObject)thisObj;
double t = date.ms;
double day = DateConstructor.MakeDay((double)DateConstructor.YearFromTime(t),
(double)DateConstructor.MonthFromTime(t), ddate);
double new_val = DateConstructor.MakeDate(day, t % DateConstructor.MS_PER_DAY);
date.ms = DateConstructor.TimeClip(new_val);
return(date.ms);
}
public static double getUTCMonth(object thisObj)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject date = (DateObject)thisObj;
double val = date.ms;
if (Double.IsNaN(val))
{
return(Double.NaN);
}
else
{
return(DateConstructor.MonthFromTime(val));
}
}
public static string toLocaleDateString(object thisObj)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject date_obj = (DateObject)thisObj;
double val = date_obj.ms;
double lv = DateConstructor.LocalTime(val);
int year = DateConstructor.YearFromTime(lv);
int month = DateConstructor.MonthFromTime(lv);
int date = DateConstructor.DateFromTime(lv);
DateTime dt;
try {
dt = new DateTime(year, month + 1, date);
} catch (ArgumentOutOfRangeException) {
return(InvalidDateString);
}
return(dt.ToString("D"));
}
public static double setUTCFullYear(object thisObj, double dyear,
object month, object date)
{
SemanticAnalyser.assert_type(thisObj, typeof(DateObject));
DateObject dt = (DateObject)thisObj;
double t = dt.ms;
if (Double.IsNaN(t))
{
t = 0;
}
double new_month;
if (month == null)
{
new_month = DateConstructor.MonthFromTime(t);
}
else
{
new_month = Convert.ToNumber(month);
}
double new_date;
if (date == null)
{
new_date = DateConstructor.DateFromTime(t);
}
else
{
new_date = Convert.ToNumber(date);
}
double day = DateConstructor.MakeDay(dyear, new_month, new_date);
double new_val = DateConstructor.MakeDate(day, t % DateConstructor.MS_PER_DAY);
dt.ms = DateConstructor.TimeClip(new_val);
return(dt.ms);
}