public string BuildParse(string parse, DateTime now, DateParserConfig config = null)
{
var behavior = new CalculatedDatesBehavior();
var result = behavior.Parse(parse, now, config);
return(result.HasValue ? result.Value.ToString("yyyy-MM-dd HH:mm:ss") : null);
}
public DateTime?Parse(string namedDate, DateTime now, DateParserConfig config)
{
switch (namedDate.ToLower())
{
case "jan":
case "january":
return(now.NextMonth(Month.January));
case "feb":
case "february":
return(now.NextMonth(Month.Febuary));
case "mar":
case "march":
return(now.NextMonth(Month.March));
case "apr":
case "april":
return(now.NextMonth(Month.April));
case "may":
return(now.NextMonth(Month.May));
case "jun":
case "june":
return(now.NextMonth(Month.June));
case "jul":
case "july":
return(now.NextMonth(Month.July));
case "aug":
case "august":
return(now.NextMonth(Month.August));
case "sep":
case "september":
return(now.NextMonth(Month.September));
case "oct":
case "october":
return(now.NextMonth(Month.October));
case "nov":
case "november":
return(now.NextMonth(Month.November));
case "dec":
case "december":
return(now.NextMonth(Month.December));
default:
return(null);
}
}
public DateTime?Parse(string namedDate, DateTime now, DateParserConfig config)
{
switch (namedDate.ToLower())
{
case "later":
case "someday":
return(new DateTime(2038, 01, 18, 0, 0, 0));
default:
return(null);
}
}
public DateTime?Parse(string namedDate, DateTime now, DateParserConfig config)
{
switch (namedDate.ToLower())
{
case "socy":
return(now.StartOfYear());
case "soy":
return(now.AddYears(1).StartOfYear());
case "eocy":
case "eoy":
return(now.EndOfYear());
case "socq":
return(now.StartOfQuarter());
case "eocq":
case "eoq":
return(now.EndOfQuarter());
case "soq":
return(now.AddMonths(4).StartOfQuarter());
case "socm":
return(now.StartOfMonth());
case "som":
return(now.AddMonths(1).StartOfMonth());
case "eocm":
case "eom":
return(now.EndOfMonth());
default:
return(null);
}
}
public DateTime?Parse(string namedDate, DateTime now, DateParserConfig config)
{
switch (namedDate.ToLower())
{
case "socw":
return(now.NextDayOfWeek(config.StartOfWeek).AddDays(-7));
case "sow":
return(now.NextDayOfWeek(config.StartOfWeek));
case "soww":
return(now.NextDayOfWeek(config.StartOfWorkWeek));
case "eoww":
return(now.NextDayOfWeek(config.EndOfWorkWeek).EndOfDay());
case "eocw":
case "eow":
return(now.NextDayOfWeek(config.EndOfWeek).EndOfDay());
case "sod":
case "today":
return(now.StartOfDay());
case "eod":
return(now.EndOfDay());
case "yesterday":
return(now.AddDays(-1).StartOfDay());
case "now":
return(now);
default:
return(null);
}
}
public DateTime?Parse(string namedDate, DateTime now, DateParserConfig config)
{
var ordinalRegex = new Regex("^([1-3]*[0-9])(th|nd|rd|st)*$");
var matches = ordinalRegex.Match(namedDate.ToLower());
if (!matches.Success)
{
return(null);
}
var dayOrdinal = int.Parse(matches.Groups[1].Value);
if (dayOrdinal <= now.Day)
{
now = now.AddMonths(1);
}
if (dayOrdinal > now.DaysInMonth())
{
throw new Exception($"Month does not contain {dayOrdinal} days");
}
return(new DateTime(now.Year, now.Month, dayOrdinal));
}
public DateTime?Parse(string namedDate, DateTime now, DateParserConfig config)
{
switch (namedDate.ToLower())
{
case "mon":
case "monday":
return(now.NextDayOfWeek(DayOfWeek.Monday));
case "tue":
case "tuesday":
return(now.NextDayOfWeek(DayOfWeek.Tuesday));
case "wed":
case "wednesday":
return(now.NextDayOfWeek(DayOfWeek.Wednesday));
case "thu":
case "thursday":
return(now.NextDayOfWeek(DayOfWeek.Thursday));
case "fri":
case "friday":
return(now.NextDayOfWeek(DayOfWeek.Friday));
case "sat":
case "saturday":
return(now.NextDayOfWeek(DayOfWeek.Saturday));
case "sun":
case "sunday":
return(now.NextDayOfWeek(DayOfWeek.Sunday));
default:
return(null);
}
}
public DateParser(IEnumerable <IDateParserBehavior> dateParserBehaviors, DateParserConfig config)
{
_config = config;
_behaviors = dateParserBehaviors;
}