private static TimeSpan ConvertResult(DurationVisitor visitor)
{
return(TimeSpan.Zero
.Add(TimeSpan.FromDays(visitor.Weeks * 7))
.Add(TimeSpan.FromDays(visitor.Days))
.Add(TimeSpan.FromHours(visitor.Hours))
.Add(TimeSpan.FromMinutes(visitor.Minutes))
.Add(TimeSpan.FromSeconds(visitor.Seconds)));
}
public DurationVisitor Negate()
{
var result = new DurationVisitor();
result.days = -this.Days;
result.hours = -this.Hours;
result.inTimeSection = this.inTimeSection;
result.minutes = -this.Minutes;
result.seconds = -this.Seconds;
return(result);
}
public static DurationVisitor Parse(string duration)
{
var visitor = new DurationVisitor(duration);
visitor.Visit();
if (visitor.isValid)
{
return(visitor);
}
throw new FormatException($"无法解析duration：{duration}");
}
public DurationHelper(string expressions)
{
IList <string> expression = new List <string>();
if (expressions != null)
{
expression = (expressions.Split('/'));
}
//datatypeFactory = DatatypeFactory.newInstance();
if (expression.Count > 3 || expression.Count == 0)
{
throw Log.CannotParseDuration(expressions);
}
if (expression[0].StartsWith("R"))
{
isRepeat = true;
times = expression[0].Length == 1 ? int.MaxValue : int.Parse(expression[0].Substring(1));
expression = expression.Skip(1).ToList();
}
if (IsDuration(expression[0]))
{
period = DurationVisitor.Parse(expression[0]);
end = expression.Count == 1 ? (DateTime?)null : DateTime.Parse(expression[1]);
}
else
{
start = DateTime.Parse(expression[0]);
if (IsDuration(expression[1]))
{
period = DurationVisitor.Parse(expression[0]);
}
else
{
end = DateTime.Parse(expression[1]);
period = DurationVisitor.FromTimeSpan(((DateTime)end) - ((DateTime)start));// datatypeFactory.newDuration(end.GetValueOrDefault().Ticks - start.Ticks);
}
}
if (start == null && end == null)
{
start = ClockUtil.CurrentTime;
}
}
