/// <summary>
/// This is used to expand the yearly frequency by month
/// </summary>
/// <param name="r">A reference to the recurrence</param>
/// <param name="dates">A reference to the collection of current instances that have been generated</param>
/// <returns>The number of instances in the collection. If zero, subsequent rules don't have to be
/// checked as there's nothing else to do.</returns>
/// <remarks>This may generate invalid dates (i.e. June 31st). These will be removed later.</remarks>
public int ByMonth(Recurrence r, RecurDateTimeCollection dates)
{
RecurDateTime rdt, rdtNew;
int expIdx, count = dates.Count;
UniqueIntegerCollection byMonth = r.ByMonth;
// Don't bother if either collection is empty
if (count != 0 && byMonth.Count != 0)
{
for (int idx = 0; idx < count; idx++)
{
rdt = dates[0];
dates.RemoveAt(0);
// Expand the date/time by adding a new entry for each month specified
for (expIdx = 0; expIdx < byMonth.Count; expIdx++)
{
rdtNew = new RecurDateTime(rdt)
{
Month = byMonth[expIdx] - 1
};
dates.Add(rdtNew);
}
}
}
return(dates.Count);
}
/// <summary>
/// This is used to expand by second
/// </summary>
/// <param name="r">A reference to the recurrence</param>
/// <param name="dates">A reference to the collection of current instances that have been generated</param>
/// <returns>The number of instances in the collection. If zero, subsequent rules don't have to be
/// checked as there's nothing else to do.</returns>
/// <remarks>If a date in the collection is invalid, it will be discarded</remarks>
public static int BySecond(Recurrence r, RecurDateTimeCollection dates)
{
RecurDateTime rdt, rdtNew;
int expIdx, count = dates.Count;
UniqueIntegerCollection bySecond = r.BySecond;
// Don't bother if either collection is empty
if (count != 0 && bySecond.Count != 0)
{
for (int idx = 0; idx < count; idx++)
{
rdt = dates[0];
dates.RemoveAt(0);
// If not valid, discard it
if (!rdt.IsValidDate())
{
continue;
}
// Expand the date/time by adding a new entry for each second specified
for (expIdx = 0; expIdx < bySecond.Count; expIdx++)
{
rdtNew = new RecurDateTime(rdt);
rdtNew.Second = bySecond[expIdx];
dates.Add(rdtNew);
}
}
}
return(dates.Count);
}
/// <summary>
/// Copy constructor
/// </summary>
/// <param name="values">The <c>UniqueIntegerCollection</c> to copy. The range and zero exclusion
/// setting are inherited from the copied collection.</param>
public UniqueIntegerCollection(UniqueIntegerCollection values)
{
if (values != null)
{
this.MinimumValue = values.MinimumValue;
this.MaximumValue = values.MaximumValue;
this.AllowZero = values.AllowZero;
this.AddRange(values);
}
}
/// <summary>
/// This is used to expand the yearly frequency by week number
/// </summary>
/// <param name="r">A reference to the recurrence</param>
/// <param name="dates">A reference to the collection of current instances that have been generated</param>
/// <returns>The number of instances in the collection. If zero, subsequent rules don't have to be
/// checked as there's nothing else to do.</returns>
/// <remarks>If an expanded date is invalid, it will be discarded</remarks>
public int ByWeekNo(Recurrence r, RecurDateTimeCollection dates)
{
RecurDateTime rdt, rdtNew;
int expIdx, week, yearWeeks, count = dates.Count;
UniqueIntegerCollection byWeekNo = r.ByWeekNo;
// Don't bother if either collection is empty
if (count != 0 && byWeekNo.Count != 0)
{
for (int idx = 0; idx < count; idx++)
{
rdt = dates[0];
yearWeeks = DateUtils.WeeksInYear(rdt.Year, r.WeekStart);
dates.RemoveAt(0);
// Expand the date/time by adding a new entry for each week number specified
for (expIdx = 0; expIdx < byWeekNo.Count; expIdx++)
{
week = byWeekNo[expIdx];
// If not in the year, discard it
if ((week == 53 || week == -53) && yearWeeks == 52)
{
continue;
}
if (week > 0)
{
rdtNew = new RecurDateTime(DateUtils.DateFromWeek(rdt.Year, week, r.WeekStart,
r.weekdayOffset));
}
else
{
rdtNew = new RecurDateTime(DateUtils.DateFromWeek(rdt.Year, yearWeeks + week + 1,
r.WeekStart, r.weekdayOffset));
}
rdtNew.Hour = rdt.Hour;
rdtNew.Minute = rdt.Minute;
rdtNew.Second = rdt.Second;
dates.Add(rdtNew);
}
}
}
return(dates.Count);
}
/// <summary>
/// This is used to expand the yearly frequency by year day
/// </summary>
/// <param name="r">A reference to the recurrence</param>
/// <param name="dates">A reference to the collection of current instances that have been generated</param>
/// <returns>The number of instances in the collection. If zero, subsequent rules don't have to be
/// checked as there's nothing else to do.</returns>
/// <remarks>If an expanded date is invalid, it will be discarded</remarks>
public int ByYearDay(Recurrence r, RecurDateTimeCollection dates)
{
RecurDateTime rdt, rdtNew;
int expIdx, yearDay, count = dates.Count;
UniqueIntegerCollection byYearDay = r.ByYearDay;
// Don't bother if either collection is empty
if (count != 0 && byYearDay.Count != 0)
{
for (int idx = 0; idx < count; idx++)
{
rdt = dates[0];
dates.RemoveAt(0);
// Expand the date/time by adding a new entry for each year day specified
for (expIdx = 0; expIdx < byYearDay.Count; expIdx++)
{
yearDay = byYearDay[expIdx];
rdtNew = new RecurDateTime(rdt)
{
Month = 0, Day = 1
};
// From start of year or end of year?
if (yearDay > 0)
{
rdtNew.AddDays(yearDay - 1);
}
else
{
rdtNew.Year++;
rdtNew.AddDays(yearDay);
}
// If not in the year, discard it
if (rdtNew.Year != rdt.Year)
{
continue;
}
dates.Add(rdtNew);
}
}
}
return(dates.Count);
}
/// <summary>
/// This is used to expand by month day
/// </summary>
/// <param name="r">A reference to the recurrence</param>
/// <param name="dates">A reference to the collection of current instances that have been generated</param>
/// <returns>The number of instances in the collection. If zero, subsequent rules don't have to be
/// checked as there's nothing else to do.</returns>
/// <remarks>If an expanded date is invalid, it will be discarded</remarks>
public static int ByMonthDay(Recurrence r, RecurDateTimeCollection dates)
{
RecurDateTime rdt, rdtNew;
int expIdx, monthDay, count = dates.Count;
UniqueIntegerCollection byMonthDay = r.ByMonthDay;
// Don't bother if either collection is empty
if (count != 0 && byMonthDay.Count != 0)
{
for (int idx = 0; idx < count; idx++)
{
rdt = dates[0];
dates.RemoveAt(0);
// Expand the date/time by adding a new entry for each month day specified
for (expIdx = 0; expIdx < byMonthDay.Count; expIdx++)
{
monthDay = byMonthDay[expIdx];
rdtNew = new RecurDateTime(rdt)
{
Day = 1
};
// From start of month or end of month?
if (monthDay > 0)
{
rdtNew.AddDays(monthDay - 1);
}
else
{
rdtNew.AddMonths(1);
rdtNew.AddDays(monthDay);
}
// If not in the month, discard it
if (rdtNew.Month != rdt.Month)
{
continue;
}
dates.Add(rdtNew);
}
}
}
return(dates.Count);
}