protected override bool ParseMatch(DatesRawData data, Match match, DateTime userDate)
{
var date = new AbstractPeriod();
// day of week
var dayOfWeek = ParserUtils.FindIndex(data.Tokens[match.Groups[2].Index].Value, Keywords.DaysOfWeek()) + 1;
var userDayOfWeek = (int)userDate.DayOfWeek;
if (userDayOfWeek == 0)
{
userDayOfWeek = 7; // starts from Monday, not Sunday
}
var diff = dayOfWeek - userDayOfWeek;
if (match.Groups[1].Success)
{
switch (match.Groups[1].Value)
{
case "y": // "closest next"
if (diff < 0)
{
diff += 7;
}
date.Date = userDate.AddDays(diff);
break;
case "x": // "next"
date.Date = userDate.AddDays(diff + 7);
break;
case "s": // "previous"
date.Date = userDate.AddDays(diff - 7);
break;
case "u": // "current"
date.Date = userDate.AddDays(diff);
break;
}
date.FixDownTo(FixPeriod.Day);
}
else
{
date.Date = userDate.AddDays(diff);
date.Fix(FixPeriod.Day);
date.FixDayOfWeek = true;
}
// remove and insert
data.ReplaceTokensByDates(match.Index, match.Length, date);
return(true);
}
protected override bool ParseMatch(DatesRawData data, Match match, DateTime userDate)
{
var monthFixed = false;
// parse month
var mStr = data.Tokens[match.Groups[2].Index].Value;
Console.WriteLine(mStr);
var month = ParserUtils.FindIndex(mStr, Keywords.Months()) + 1;
if (month == 0)
{
month = userDate.Month; // # instead M
}
else
{
monthFixed = true;
}
// set for first date same month as for second, ignore second (will parse further)
var t = data.Tokens[match.Groups[1].Index];
int.TryParse(t.Value, out var day);
// current token is number, store it as a day
var period = new AbstractPeriod
{
Date = new DateTime(
userDate.Year,
month,
ParserUtils.GetDayValidForMonth(userDate.Year, month, day)
)
};
// fix from week to day, and year/month if it was
period.Fix(FixPeriod.Week, FixPeriod.Day);
if (monthFixed)
{
period.Fix(FixPeriod.Month);
}
// replace
data.ReplaceTokensByDates(match.Groups[1].Index, 1, period);
return(true);
}
protected override bool ParseMatch(DatesRawData data, Match match, DateTime userDate)
{
var year = userDate.Year;
var yearFixed = false;
// parse month
var mStr = data.Tokens[match.Index + match.Groups[1].Length].Value;
var month = ParserUtils.FindIndex(mStr, Keywords.Months()) + 1;
if (month == 0)
{
month = userDate.Month;
}
var monthPast = month < userDate.Month;
var monthFuture = month > userDate.Month;
// check if relative
if (match.Groups[1].Success)
{
switch (match.Groups[1].Value)
{
case "s": // previous
if (!monthPast)
{
year--;
}
break;
case "u": // current
break;
case "y": // current-next
if (monthPast)
{
year++;
}
break;
case "x": // next
if (!monthFuture)
{
year++;
}
break;
}
yearFixed = true;
}
// create date
var date = new AbstractPeriod
{
Date = new DateTime(year, month, 1)
};
// fix month and maybe year
date.Fix(FixPeriod.Month);
if (yearFixed)
{
date.Fix(FixPeriod.Year);
}
// remove and insert
data.ReplaceTokensByDates(match.Index, match.Length, date);
return(true);
}
protected override bool ParseMatch(DatesRawData data, Match match, DateTime userDate)
{
var dates = new List <AbstractPeriod>();
var monthFixed = false;
// parse month
var mStr = data.Tokens[match.Index + match.Groups[1].Length].Value;
var month = ParserUtils.FindIndex(mStr, Keywords.Months()) + 1;
if (month == 0)
{
month = userDate.Month; // # instead M
}
else
{
monthFixed = true;
}
// create dates
for (var i = match.Index; i < match.Index + match.Groups[1].Length; i++)
{
var t = data.Tokens[i];
int.TryParse(t.Value, out var day);
if (day <= 0)
{
continue; // this is "AND" or other token
}
// current token is number, store it as a day
var period = new AbstractPeriod
{
Date = new DateTime(
userDate.Year,
month,
ParserUtils.GetDayValidForMonth(userDate.Year, month, day)
)
};
// fix from week to day, and year/month if it was
period.Fix(FixPeriod.Week, FixPeriod.Day);
if (monthFixed)
{
period.Fix(FixPeriod.Month);
}
// store
dates.Add(period);
// compare with last if month not fixed
if (!monthFixed && dates.Count > 0 && dates.Last().Date < period.Date)
{
period.Date = new DateTime(
userDate.Year,
month + 1,
ParserUtils.GetDayValidForMonth(userDate.Year, month + 1, day)
);
}
}
// replace all scanned tokens
data.ReplaceTokensByDates(match.Index, match.Length, dates.ToArray());
return(true);
}
