private static unsafe long ParseNthWeekDay(CronField field, ref char *pointer, int dayOfWeek, ref CronExpressionFlag flags, out byte nthDayOfWeek)
{
nthDayOfWeek = (byte)ParseNumber(field, ref pointer, MinNthDayOfWeek, MaxNthDayOfWeek);
flags |= CronExpressionFlag.NthDayOfWeek;
return(GetBit(dayOfWeek));
}
private static StringBuilder AppendFieldValue(StringBuilder expressionBuilder, CronField field, long fieldValue)
{
if (field.AllBits == fieldValue)
{
return(expressionBuilder.Append('*'));
}
// Unset 7 bit for Day of week field because both 0 and 7 stand for Sunday.
if (field == CronField.DaysOfWeek)
{
fieldValue &= ~(1 << field.Last);
}
for (var i = GetFirstSet(fieldValue);; i = GetFirstSet(fieldValue >> i << i))
{
expressionBuilder.Append(i);
if (fieldValue >> ++i == 0)
{
break;
}
expressionBuilder.Append(',');
}
return(expressionBuilder);
}
private static unsafe long ParseStar(CronField field, ref char *pointer)
{
return(Accept(ref pointer, '/')
? ParseStep(field, ref pointer, field.First, field.Last)
: field.AllBits);
}
internal CronFormatException(CronField field, string message) : this($"{field}: {message}")
{
}