private static DateTimeResolutionResult GetAgoLaterResult(
DateTimeParseResult durationParseResult,
string afterStr,
string beforeStr,
DateObject referenceTime,
IParser numberParser,
IDateTimeUtilityConfiguration utilityConfiguration,
AgoLaterMode mode,
SwiftDayDelegate swiftDay)
{
var ret = new DateTimeResolutionResult();
var resultDateTime = referenceTime;
var timex = durationParseResult.TimexStr;
if (((DateTimeResolutionResult)durationParseResult.Value).Mod == Constants.MORE_THAN_MOD)
{
ret.Mod = Constants.MORE_THAN_MOD;
}
else if (((DateTimeResolutionResult)durationParseResult.Value).Mod == Constants.LESS_THAN_MOD)
{
ret.Mod = Constants.LESS_THAN_MOD;
}
if (MatchingUtil.ContainsAgoLaterIndex(afterStr, utilityConfiguration.AgoRegex))
{
var match = utilityConfiguration.AgoRegex.Match(afterStr);
var swift = 0;
// Handle cases like "3 days before yesterday"
if (match.Success && !string.IsNullOrEmpty(match.Groups["day"].Value))
{
swift = swiftDay(match.Groups["day"].Value);
}
else if (utilityConfiguration.CheckBothBeforeAfter && match.Success && !MatchingUtil.ContainsAgoLaterIndexInBeforeString(beforeStr, utilityConfiguration.AgoRegex))
{
match = utilityConfiguration.AgoRegex.Match(beforeStr + " " + afterStr);
if (match.Success && !string.IsNullOrEmpty(match.Groups["day"].Value))
{
swift = swiftDay(match.Groups["day"].Value);
}
}
resultDateTime = DurationParsingUtil.ShiftDateTime(timex, referenceTime.AddDays(swift), false);
((DateTimeResolutionResult)durationParseResult.Value).Mod = Constants.BEFORE_MOD;
}
else if (utilityConfiguration.CheckBothBeforeAfter && MatchingUtil.ContainsAgoLaterIndexInBeforeString(beforeStr, utilityConfiguration.AgoRegex))
{
var match = utilityConfiguration.AgoRegex.Match(beforeStr);
var swift = 0;
// Handle cases like "3 days before yesterday"
if (match.Success && !string.IsNullOrEmpty(match.Groups["day"].Value))
{
swift = swiftDay(match.Groups["day"].Value);
}
resultDateTime = DurationParsingUtil.ShiftDateTime(timex, referenceTime.AddDays(swift), false);
((DateTimeResolutionResult)durationParseResult.Value).Mod = Constants.BEFORE_MOD;
}
else if (MatchingUtil.ContainsAgoLaterIndex(afterStr, utilityConfiguration.LaterRegex) ||
MatchingUtil.ContainsTermIndex(beforeStr, utilityConfiguration.InConnectorRegex) ||
(utilityConfiguration.CheckBothBeforeAfter && MatchingUtil.ContainsAgoLaterIndexInBeforeString(beforeStr, utilityConfiguration.LaterRegex)))
{
var match = utilityConfiguration.LaterRegex.Match(afterStr);
var swift = 0;
if (utilityConfiguration.CheckBothBeforeAfter && MatchingUtil.ContainsAgoLaterIndexInBeforeString(beforeStr, utilityConfiguration.LaterRegex) && string.IsNullOrEmpty(match.Groups["day"].Value))
{
match = utilityConfiguration.LaterRegex.Match(beforeStr);
}
// Handle cases like "3 days after tomorrow"
if (match.Success && !string.IsNullOrEmpty(match.Groups["day"].Value))
{
swift = swiftDay(match.Groups["day"].Value);
}
var yearMatch = utilityConfiguration.SinceYearSuffixRegex.Match(afterStr);
if (yearMatch.Success)
{
var yearString = yearMatch.Groups[Constants.YearGroupName].Value;
var yearEr = new ExtractResult {
Text = yearString
};
var year = Convert.ToInt32((double)(numberParser.Parse(yearEr).Value ?? 0));
referenceTime = DateObject.MinValue.SafeCreateFromValue(year, 1, 1);
}
resultDateTime = DurationParsingUtil.ShiftDateTime(timex, referenceTime.AddDays(swift), true);
((DateTimeResolutionResult)durationParseResult.Value).Mod = Constants.AFTER_MOD;
}
else if (utilityConfiguration.CheckBothBeforeAfter && (MatchingUtil.ContainsAgoLaterIndexInBeforeString(beforeStr, utilityConfiguration.LaterRegex) ||
MatchingUtil.ContainsAgoLaterIndex(afterStr, utilityConfiguration.InConnectorRegex) ||
MatchingUtil.ContainsAgoLaterIndex(afterStr, utilityConfiguration.LaterRegex)))
{
// Check also beforeStr
var match = utilityConfiguration.LaterRegex.Match(beforeStr);
var swift = 0;
if (MatchingUtil.ContainsAgoLaterIndex(afterStr, utilityConfiguration.LaterRegex) && string.IsNullOrEmpty(match.Groups["day"].Value))
{
match = utilityConfiguration.LaterRegex.Match(beforeStr);
}
// Handle cases like "3 days after tomorrow"
if (match.Success && !string.IsNullOrEmpty(match.Groups["day"].Value))
{
swift = swiftDay(match.Groups["day"].Value);
}
var yearMatch = utilityConfiguration.SinceYearSuffixRegex.Match(beforeStr);
if (yearMatch.Success)
{
var yearString = yearMatch.Groups[Constants.YearGroupName].Value;
var yearEr = new ExtractResult {
Text = yearString
};
var year = Convert.ToInt32((double)(numberParser.Parse(yearEr).Value ?? 0));
referenceTime = DateObject.MinValue.SafeCreateFromValue(year, 1, 1);
}
resultDateTime = DurationParsingUtil.ShiftDateTime(timex, referenceTime.AddDays(swift), true);
((DateTimeResolutionResult)durationParseResult.Value).Mod = Constants.AFTER_MOD;
}
if (resultDateTime != referenceTime)
{
if (mode.Equals(AgoLaterMode.Date))
{
ret.Timex = $"{DateTimeFormatUtil.LuisDate(resultDateTime)}";
}
else if (mode.Equals(AgoLaterMode.DateTime))
{
ret.Timex = $"{DateTimeFormatUtil.LuisDateTime(resultDateTime)}";
}
ret.FutureValue = ret.PastValue = resultDateTime;
ret.SubDateTimeEntities = new List <object> {
durationParseResult
};
ret.Success = true;
}
return(ret);
}
private DateTimeResolutionResult ParseSimpleCases(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
int year = referenceTime.Year, month = referenceTime.Month, day = referenceTime.Day;
var trimedText = text.Trim().ToLower();
var match = this.config.PureNumberFromToRegex.Match(trimedText);
if (!match.Success)
{
match = this.config.PureNumberBetweenAndRegex.Match(trimedText);
}
if (match.Success && match.Index == 0)
{
// this "from .. to .." pattern is valid if followed by a Date OR "pm"
var isValid = false;
// get hours
var hourGroup = match.Groups["hour"];
var hourStr = hourGroup.Captures[0].Value;
if (!this.config.Numbers.TryGetValue(hourStr, out int beginHour))
{
beginHour = int.Parse(hourStr);
}
hourStr = hourGroup.Captures[1].Value;
if (!this.config.Numbers.TryGetValue(hourStr, out int endHour))
{
endHour = int.Parse(hourStr);
}
// parse "pm"
var leftDesc = match.Groups["leftDesc"].Value;
var rightDesc = match.Groups["rightDesc"].Value;
var pmStr = match.Groups["pm"].Value;
var amStr = match.Groups["am"].Value;
var descStr = match.Groups["desc"].Value;
// The "ampm" only occurs in time, we don't have to consider it here
if (string.IsNullOrEmpty(leftDesc))
{
bool rightAmValid = !string.IsNullOrEmpty(rightDesc) &&
config.UtilityConfiguration.AmDescRegex.Match(rightDesc.ToLower()).Success;
bool rightPmValid = !string.IsNullOrEmpty(rightDesc) &&
config.UtilityConfiguration.PmDescRegex.Match(rightDesc.ToLower()).Success;
if (!string.IsNullOrEmpty(amStr) || rightAmValid)
{
if (endHour >= 12)
{
endHour -= 12;
}
if (beginHour >= 12 && beginHour - 12 < endHour)
{
beginHour -= 12;
}
// Resolve case like "11 to 3am"
if (beginHour < 12 && beginHour > endHour)
{
beginHour += 12;
}
isValid = true;
}
else if (!string.IsNullOrEmpty(pmStr) || rightPmValid)
{
if (endHour < 12)
{
endHour += 12;
}
// Resolve case like "11 to 3pm"
if (beginHour + 12 < endHour)
{
beginHour += 12;
}
isValid = true;
}
}
if (isValid)
{
var beginStr = "T" + beginHour.ToString("D2");
var endStr = "T" + endHour.ToString("D2");
if (endHour >= beginHour)
{
ret.Timex = $"({beginStr},{endStr},PT{endHour - beginHour}H)";
}
else
{
ret.Timex = $"({beginStr},{endStr},PT{endHour - beginHour + 24}H)";
}
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(year, month, day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(year, month, day, endHour, 0, 0));
ret.Success = true;
return(ret);
}
}
return(ret);
}
// Handle cases like "January first", "twenty-two of August"
// Handle cases like "20th of next month"
private DateTimeResolutionResult ParseNumberWithMonth(string text, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim();
int month = 0, day = 0, year = referenceDate.Year;
bool ambiguous = true;
var er = this.config.OrdinalExtractor.Extract(trimmedText);
if (er.Count == 0)
{
er = this.config.IntegerExtractor.Extract(trimmedText);
}
if (er.Count == 0)
{
return(ret);
}
var num = Convert.ToInt32((double)(this.config.NumberParser.Parse(er[0]).Value ?? 0));
var match = this.config.MonthRegex.Match(trimmedText);
if (match.Success)
{
month = this.config.MonthOfYear[match.Value.Trim()];
day = num;
var suffix = trimmedText.Substring(er[0].Start + er[0].Length ?? 0);
var matchYear = this.config.YearSuffix.Match(suffix);
if (matchYear.Success)
{
year = ((BaseDateExtractor)this.config.DateExtractor).GetYearFromText(matchYear);
if (year != Constants.InvalidYear)
{
ambiguous = false;
}
}
}
// Handling relative month
if (!match.Success)
{
match = this.config.RelativeMonthRegex.Match(trimmedText);
if (match.Success)
{
var monthStr = match.Groups["order"].Value;
var swift = this.config.GetSwiftMonthOrYear(monthStr);
month = referenceDate.AddMonths(swift).Month;
year = referenceDate.AddMonths(swift).Year;
day = num;
ambiguous = false;
}
}
// Handling cases like 'second Sunday'
if (!match.Success)
{
match = this.config.WeekDayRegex.Match(trimmedText);
if (match.Success)
{
month = referenceDate.Month;
// Resolve the date of wanted week day
var wantedWeekDay = this.config.DayOfWeek[match.Groups["weekday"].Value];
var firstDate = DateObject.MinValue.SafeCreateFromValue(referenceDate.Year, referenceDate.Month, 1);
var firstWeekDay = (int)firstDate.DayOfWeek;
var firstWantedWeekDay = firstDate.AddDays(wantedWeekDay > firstWeekDay ? wantedWeekDay - firstWeekDay : wantedWeekDay - firstWeekDay + 7);
var answerDay = firstWantedWeekDay.Day + ((num - 1) * 7);
day = answerDay;
ambiguous = false;
}
}
if (!match.Success)
{
return(ret);
}
// For LUIS format value string
var futureDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
var pastDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
if (ambiguous)
{
ret.Timex = DateTimeFormatUtil.LuisDate(-1, month, day);
if (futureDate < referenceDate)
{
futureDate = futureDate.AddYears(+1);
}
if (pastDate >= referenceDate)
{
pastDate = pastDate.AddYears(-1);
}
}
else
{
ret.Timex = DateTimeFormatUtil.LuisDate(year, month, day);
}
ret.FutureValue = futureDate;
ret.PastValue = pastDate;
ret.Success = true;
return(ret);
}
private DateTimeResolutionResult MergeTwoTimePoints(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
DateTimeParseResult pr1 = null, pr2 = null;
bool bothHaveDates = false, beginHasDate = false, endHasDate = false;
var timeExtractResults = this.Config.TimeExtractor.Extract(text, referenceTime);
var dateTimeExtractResults = this.Config.DateTimeExtractor.Extract(text, referenceTime);
if (dateTimeExtractResults.Count == 2)
{
pr1 = this.Config.DateTimeParser.Parse(dateTimeExtractResults[0], referenceTime);
pr2 = this.Config.DateTimeParser.Parse(dateTimeExtractResults[1], referenceTime);
bothHaveDates = true;
}
else if (dateTimeExtractResults.Count == 1 && timeExtractResults.Count == 2)
{
if (!dateTimeExtractResults[0].IsOverlap(timeExtractResults[0]))
{
pr1 = this.Config.TimeParser.Parse(timeExtractResults[0], referenceTime);
pr2 = this.Config.DateTimeParser.Parse(dateTimeExtractResults[0], referenceTime);
endHasDate = true;
}
else
{
pr1 = this.Config.DateTimeParser.Parse(dateTimeExtractResults[0], referenceTime);
pr2 = this.Config.TimeParser.Parse(timeExtractResults[1], referenceTime);
beginHasDate = true;
}
}
else if (dateTimeExtractResults.Count == 1 && timeExtractResults.Count == 1)
{
if (timeExtractResults[0].Start < dateTimeExtractResults[0].Start)
{
pr1 = this.Config.TimeParser.Parse(timeExtractResults[0], referenceTime);
pr2 = this.Config.DateTimeParser.Parse(dateTimeExtractResults[0], referenceTime);
endHasDate = true;
}
else if (timeExtractResults[0].Start >= dateTimeExtractResults[0].Start + dateTimeExtractResults[0].Length)
{
pr1 = this.Config.DateTimeParser.Parse(dateTimeExtractResults[0], referenceTime);
pr2 = this.Config.TimeParser.Parse(timeExtractResults[0], referenceTime);
beginHasDate = true;
}
else
{
// If the only TimeExtractResult is part of DateTimeExtractResult, then it should not be handled in this method
return(ret);
}
}
else if (timeExtractResults.Count == 2)
{
// If both ends are Time. then this is a TimePeriod, not a DateTimePeriod
return(ret);
}
else
{
return(ret);
}
if (pr1.Value == null || pr2.Value == null)
{
return(ret);
}
DateObject futureBegin = (DateObject)((DateTimeResolutionResult)pr1.Value).FutureValue,
futureEnd = (DateObject)((DateTimeResolutionResult)pr2.Value).FutureValue;
DateObject pastBegin = (DateObject)((DateTimeResolutionResult)pr1.Value).PastValue,
pastEnd = (DateObject)((DateTimeResolutionResult)pr2.Value).PastValue;
if (bothHaveDates)
{
if (futureBegin > futureEnd)
{
futureBegin = pastBegin;
}
if (pastEnd < pastBegin)
{
pastEnd = futureEnd;
}
}
if (bothHaveDates)
{
ret.Timex = $"({pr1.TimexStr},{pr2.TimexStr},PT{Convert.ToInt32((futureEnd - futureBegin).TotalHours)}H)";
// Do nothing
}
else if (beginHasDate)
{
futureEnd = DateObject.MinValue.SafeCreateFromValue(
futureBegin.Year, futureBegin.Month, futureBegin.Day, futureEnd.Hour, futureEnd.Minute, futureEnd.Second);
pastEnd = DateObject.MinValue.SafeCreateFromValue(
pastBegin.Year, pastBegin.Month, pastBegin.Day, pastEnd.Hour, pastEnd.Minute, pastEnd.Second);
var dateStr = pr1.TimexStr.Split('T')[0];
var durationStr = DateTimeFormatUtil.LuisTimeSpan(futureEnd - futureBegin);
ret.Timex = $"({pr1.TimexStr},{dateStr + pr2.TimexStr},{durationStr}";
}
else if (endHasDate)
{
futureBegin = DateObject.MinValue.SafeCreateFromValue(
futureEnd.Year, futureEnd.Month, futureEnd.Day, futureBegin.Hour, futureBegin.Minute, futureBegin.Second);
pastBegin = DateObject.MinValue.SafeCreateFromValue(
pastEnd.Year, pastEnd.Month, pastEnd.Day, pastBegin.Hour, pastBegin.Minute, pastBegin.Second);
var dateStr = pr2.TimexStr.Split('T')[0];
var durationStr = DateTimeFormatUtil.LuisTimeSpan(pastEnd - pastBegin);
ret.Timex = $"({dateStr + pr1.TimexStr},{pr2.TimexStr},PT{Convert.ToInt32((pastEnd - pastBegin).TotalHours)}H)";
}
var ampmStr1 = ((DateTimeResolutionResult)pr1.Value).Comment;
var ampmStr2 = ((DateTimeResolutionResult)pr2.Value).Comment;
if (!string.IsNullOrEmpty(ampmStr1) && ampmStr1.EndsWith(Constants.Comment_AmPm) &&
!string.IsNullOrEmpty(ampmStr2) && ampmStr2.EndsWith(Constants.Comment_AmPm))
{
ret.Comment = Constants.Comment_AmPm;
}
if ((this.Config.Options & DateTimeOptions.EnablePreview) != 0)
{
if (((DateTimeResolutionResult)pr1.Value).TimeZoneResolution != null)
{
ret.TimeZoneResolution = ((DateTimeResolutionResult)pr1.Value).TimeZoneResolution;
}
else if (((DateTimeResolutionResult)pr2.Value).TimeZoneResolution != null)
{
ret.TimeZoneResolution = ((DateTimeResolutionResult)pr2.Value).TimeZoneResolution;
}
}
ret.FutureValue = new Tuple <DateObject, DateObject>(futureBegin, futureEnd);
ret.PastValue = new Tuple <DateObject, DateObject>(pastBegin, pastEnd);
ret.Success = true;
ret.SubDateTimeEntities = new List <object> {
pr1, pr2
};
return(ret);
}
private DateTimeResolutionResult MergeTwoTimePoints(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
DateTimeParseResult pr1 = null, pr2 = null;
var validTimeNumber = false;
var ers = this.config.TimeExtractor.Extract(text, referenceTime);
if (ers.Count != 2)
{
if (ers.Count == 1)
{
var numErs = this.config.IntegerExtractor.Extract(text);
foreach (var num in numErs)
{
int midStrBegin = 0, midStrEnd = 0;
// ending number
if (num.Start > ers[0].Start + ers[0].Length)
{
midStrBegin = ers[0].Start + ers[0].Length ?? 0;
midStrEnd = num.Start - midStrBegin ?? 0;
}
else if (num.Start + num.Length < ers[0].Start)
{
midStrBegin = num.Start + num.Length ?? 0;
midStrEnd = ers[0].Start - midStrBegin ?? 0;
}
// check if the middle string between the time point and the valid number is a connect string.
var middleStr = text.Substring(midStrBegin, midStrEnd);
var tillMatch = this.config.TillRegex.Match(middleStr);
if (tillMatch.Success)
{
num.Data = null;
num.Type = Constants.SYS_DATETIME_TIME;
ers.Add(num);
validTimeNumber = true;
break;
}
}
ers.Sort((x, y) => (x.Start - y.Start ?? 0));
}
if (!validTimeNumber)
{
return(ret);
}
}
pr1 = this.config.TimeParser.Parse(ers[0], referenceTime);
pr2 = this.config.TimeParser.Parse(ers[1], referenceTime);
if (pr1.Value == null || pr2.Value == null)
{
return(ret);
}
var ampmStr1 = ((DateTimeResolutionResult)pr1.Value).Comment;
var ampmStr2 = ((DateTimeResolutionResult)pr2.Value).Comment;
var beginTime = (DateObject)((DateTimeResolutionResult)pr1.Value).FutureValue;
var endTime = (DateObject)((DateTimeResolutionResult)pr2.Value).FutureValue;
if (!string.IsNullOrEmpty(ampmStr2) && ampmStr2.EndsWith(Constants.Comment_AmPm) && endTime <= beginTime && endTime.AddHours(12) > beginTime)
{
endTime = endTime.AddHours(12);
((DateTimeResolutionResult)pr2.Value).FutureValue = endTime;
pr2.TimexStr = $"T{endTime.Hour}";
if (endTime.Minute > 0)
{
pr2.TimexStr = $"{pr2.TimexStr}:{endTime.Minute}";
}
}
if (!string.IsNullOrEmpty(ampmStr1) && ampmStr1.EndsWith(Constants.Comment_AmPm) && endTime > beginTime.AddHours(12))
{
beginTime = beginTime.AddHours(12);
((DateTimeResolutionResult)pr1.Value).FutureValue = beginTime;
pr1.TimexStr = $"T{beginTime.Hour}";
if (beginTime.Minute > 0)
{
pr1.TimexStr = $"{pr1.TimexStr}:{beginTime.Minute}";
}
}
if (endTime < beginTime)
{
endTime = endTime.AddDays(1);
}
var minutes = (endTime - beginTime).Minutes;
var hours = (endTime - beginTime).Hours;
ret.Timex = $"({pr1.TimexStr},{pr2.TimexStr}," +
$"PT{(hours > 0 ? hours + "H" : "")}{(minutes > 0 ? minutes + "M" : "")})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginTime, endTime);
ret.Success = true;
if (!string.IsNullOrEmpty(ampmStr1) && ampmStr1.EndsWith(Constants.Comment_AmPm) &&
!string.IsNullOrEmpty(ampmStr2) && ampmStr2.EndsWith(Constants.Comment_AmPm))
{
ret.Comment = Constants.Comment_AmPm;
}
ret.SubDateTimeEntities = new List <object> {
pr1, pr2
};
return(ret);
}
// Parse "last minute", "next hour"
private DateTimeResolutionResult ParseRelativeUnit(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var match = Config.RelativeTimeUnitRegex.Match(text);
if (!match.Success)
{
match = this.Config.RestOfDateTimeRegex.Match(text);
}
if (match.Success)
{
var srcUnit = match.Groups["unit"].Value.ToLower();
var unitStr = Config.UnitMap[srcUnit];
int swiftValue = 1;
var prefixMatch = Config.PreviousPrefixRegex.Match(text);
if (prefixMatch.Success)
{
swiftValue = -1;
}
DateObject beginTime;
var endTime = beginTime = referenceTime;
var sufixPtTimex = string.Empty;
if (Config.UnitMap.ContainsKey(srcUnit))
{
switch (unitStr)
{
case "D":
endTime = DateObject.MinValue.SafeCreateFromValue(beginTime.Year, beginTime.Month, beginTime.Day);
endTime = endTime.AddDays(1).AddSeconds(-1);
sufixPtTimex = "PT" + (endTime - beginTime).TotalSeconds + "S";
break;
case "H":
beginTime = swiftValue > 0 ? beginTime : referenceTime.AddHours(swiftValue);
endTime = swiftValue > 0 ? referenceTime.AddHours(swiftValue) : endTime;
sufixPtTimex = "PT1H";
break;
case "M":
beginTime = swiftValue > 0 ? beginTime : referenceTime.AddMinutes(swiftValue);
endTime = swiftValue > 0 ? referenceTime.AddMinutes(swiftValue) : endTime;
sufixPtTimex = "PT1M";
break;
case "S":
beginTime = swiftValue > 0 ? beginTime : referenceTime.AddSeconds(swiftValue);
endTime = swiftValue > 0 ? referenceTime.AddSeconds(swiftValue) : endTime;
sufixPtTimex = "PT1S";
break;
default:
return(ret);
}
ret.Timex =
$"({DateTimeFormatUtil.LuisDate(beginTime)}T{DateTimeFormatUtil.LuisTime(beginTime)}," +
$"{DateTimeFormatUtil.LuisDate(endTime)}T{DateTimeFormatUtil.LuisTime(endTime)},{sufixPtTimex})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginTime, endTime);
ret.Success = true;
return(ret);
}
}
return(ret);
}
private DateTimeResolutionResult MergeDateWithSingleTimePeriod(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim().ToLower();
var ers = Config.TimePeriodExtractor.Extract(trimmedText, referenceTime);
if (ers.Count == 0)
{
return(ParsePureNumberCases(text, referenceTime));
}
else if (ers.Count == 1)
{
var timePeriodParseResult = Config.TimePeriodParser.Parse(ers[0]);
var timePeriodResolutionResult = (DateTimeResolutionResult)timePeriodParseResult.Value;
if (timePeriodResolutionResult == null)
{
return(ParsePureNumberCases(text, referenceTime));
}
var periodTimex = timePeriodResolutionResult.Timex;
// If it is a range type timex
if (TimexUtility.IsRangeTimex(periodTimex))
{
var dateResult = this.Config.DateExtractor.Extract(trimmedText.Replace(ers[0].Text, string.Empty), referenceTime);
var dateText = trimmedText.Replace(ers[0].Text, string.Empty).Replace(Config.TokenBeforeDate, string.Empty).Trim();
// If only one Date is extracted and the Date text equals to the rest part of source text
if (dateResult.Count == 1 && dateText.Equals(dateResult[0].Text))
{
string dateTimex;
DateObject futureTime;
DateObject pastTime;
var pr = this.Config.DateParser.Parse(dateResult[0], referenceTime);
if (pr.Value != null)
{
futureTime = (DateObject)((DateTimeResolutionResult)pr.Value).FutureValue;
pastTime = (DateObject)((DateTimeResolutionResult)pr.Value).PastValue;
dateTimex = pr.TimexStr;
}
else
{
return(ParsePureNumberCases(text, referenceTime));
}
var rangeTimexComponents = TimexUtility.GetRangeTimexComponents(periodTimex);
if (rangeTimexComponents.IsValid)
{
var beginTimex = TimexUtility.CombineDateAndTimeTimex(dateTimex, rangeTimexComponents.BeginTimex);
var endTimex = TimexUtility.CombineDateAndTimeTimex(dateTimex, rangeTimexComponents.EndTimex);
ret.Timex = TimexUtility.GenerateDateTimePeriodTimex(beginTimex, endTimex, rangeTimexComponents.DurationTimex);
var timePeriodFutureValue = (Tuple <DateObject, DateObject>)timePeriodResolutionResult.FutureValue;
var beginTime = timePeriodFutureValue.Item1;
var endTime = timePeriodFutureValue.Item2;
ret.FutureValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(
futureTime.Year, futureTime.Month, futureTime.Day, beginTime.Hour, beginTime.Minute, beginTime.Second),
DateObject.MinValue.SafeCreateFromValue(
futureTime.Year, futureTime.Month, futureTime.Day, endTime.Hour, endTime.Minute, endTime.Second));
ret.PastValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(
pastTime.Year, pastTime.Month, pastTime.Day, beginTime.Hour, beginTime.Minute, beginTime.Second),
DateObject.MinValue.SafeCreateFromValue(
pastTime.Year, pastTime.Month, pastTime.Day, endTime.Hour, endTime.Minute, endTime.Second));
if (!string.IsNullOrEmpty(timePeriodResolutionResult.Comment) &&
timePeriodResolutionResult.Comment.Equals(Constants.Comment_AmPm))
{
// AmPm comment is used for later SetParserResult to judge whether this parse result should have two parsing results
// Cases like "from 10:30 to 11 on 1/1/2015" should have AmPm comment, as it can be parsed to "10:30am to 11am" and also be parsed to "10:30pm to 11pm"
// Cases like "from 10:30 to 3 on 1/1/2015" should not have AmPm comment
if (beginTime.Hour < Constants.HalfDayHourCount && endTime.Hour < Constants.HalfDayHourCount)
{
ret.Comment = Constants.Comment_AmPm;
}
}
ret.Success = true;
ret.SubDateTimeEntities = new List <object> {
pr, timePeriodParseResult
};
return(ret);
}
}
return(ParsePureNumberCases(text, referenceTime));
}
}
return(ret);
}
// Cases like "from 3 to 5pm" or "between 4 and 6am", time point is pure number without colon
private DateTimeResolutionResult ParsePureNumCases(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
int year = referenceTime.Year, month = referenceTime.Month, day = referenceTime.Day;
var trimmedText = text.Trim().ToLower();
var match = this.config.PureNumberFromToRegex.MatchBegin(trimmedText, trim: true);
if (!match.Success)
{
match = this.config.PureNumberBetweenAndRegex.MatchBegin(trimmedText, trim: true);
}
if (match.Success)
{
// this "from .. to .." pattern is valid if followed by a Date OR "pm"
var isValid = false;
// get hours
var hourGroup = match.Groups[Constants.HourGroupName];
var hourStr = hourGroup.Captures[0].Value;
var afterHourIndex = hourGroup.Captures[0].Index + hourGroup.Captures[0].Length;
// hard to integrate this part into the regex
if (afterHourIndex == trimmedText.Length || !trimmedText.Substring(afterHourIndex).Trim().StartsWith(":"))
{
if (!this.config.Numbers.TryGetValue(hourStr, out int beginHour))
{
beginHour = int.Parse(hourStr);
}
hourStr = hourGroup.Captures[1].Value;
afterHourIndex = hourGroup.Captures[1].Index + hourGroup.Captures[1].Length;
if (afterHourIndex == trimmedText.Length || !trimmedText.Substring(afterHourIndex).Trim().StartsWith(":"))
{
if (!this.config.Numbers.TryGetValue(hourStr, out int endHour))
{
endHour = int.Parse(hourStr);
}
// parse "pm"
var leftDesc = match.Groups["leftDesc"].Value;
var rightDesc = match.Groups["rightDesc"].Value;
var matchPmStr = match.Groups[Constants.PmGroupName].Value;
var matchAmStr = match.Groups[Constants.AmGroupName].Value;
var descStr = match.Groups[Constants.DescGroupName].Value;
// The "ampm" only occurs in time, we don't have to consider it here
if (string.IsNullOrEmpty(leftDesc))
{
var rightAmValid = !string.IsNullOrEmpty(rightDesc) &&
config.UtilityConfiguration.AmDescRegex.Match(rightDesc.ToLower()).Success;
var rightPmValid = !string.IsNullOrEmpty(rightDesc) &&
config.UtilityConfiguration.PmDescRegex.Match(rightDesc.ToLower()).Success;
if (!string.IsNullOrEmpty(matchAmStr) || rightAmValid)
{
if (endHour >= Constants.HalfDayHourCount)
{
endHour -= Constants.HalfDayHourCount;
}
if (beginHour >= Constants.HalfDayHourCount && beginHour - Constants.HalfDayHourCount < endHour)
{
beginHour -= Constants.HalfDayHourCount;
}
// Resolve case like "11 to 3am"
if (beginHour < Constants.HalfDayHourCount && beginHour > endHour)
{
beginHour += Constants.HalfDayHourCount;
}
isValid = true;
}
else if (!string.IsNullOrEmpty(matchPmStr) || rightPmValid)
{
if (endHour < Constants.HalfDayHourCount)
{
endHour += Constants.HalfDayHourCount;
}
// Resolve case like "11 to 3pm"
if (beginHour + Constants.HalfDayHourCount < endHour)
{
beginHour += Constants.HalfDayHourCount;
}
isValid = true;
}
}
if (isValid)
{
var beginStr = "T" + beginHour.ToString("D2");
var endStr = "T" + endHour.ToString("D2");
if (endHour >= beginHour)
{
ret.Timex = $"({beginStr},{endStr},PT{endHour - beginHour}H)";
}
else
{
ret.Timex = $"({beginStr},{endStr},PT{endHour - beginHour + 24}H)";
}
// Try to get the timezone resolution
var timeErs = config.TimeExtractor.Extract(trimmedText);
foreach (var er in timeErs)
{
var pr = config.TimeParser.Parse(er, referenceTime);
if (((DateTimeResolutionResult)pr.Value).TimeZoneResolution != null)
{
ret.TimeZoneResolution = ((DateTimeResolutionResult)pr.Value).TimeZoneResolution;
break;
}
}
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(year, month, day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(year, month, day, endHour, 0, 0));
ret.Success = true;
}
}
}
}
return(ret);
}
// Cases like "from 3:30 to 5" or "between 3:30am to 6pm", at least one of the time point contains colon
private DateTimeResolutionResult ParseSpecificTimeCases(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
int year = referenceTime.Year, month = referenceTime.Month, day = referenceTime.Day;
// Handle cases like "from 4:30 to 5"
var match = config.SpecificTimeFromToRegex.MatchExact(text, trim: true);
if (!match.Success)
{
// Handle cases like "between 5:10 and 7"
match = config.SpecificTimeBetweenAndRegex.MatchExact(text, trim: true);
}
if (match.Success)
{
// Cases like "half past seven" are not handled here
if (match.Groups[Constants.PrefixGroupName].Success)
{
return(ret);
}
// Cases like "4" is different with "4:00" as the Timex is different "T04H" vs "T04H00M"
int beginHour;
int beginMinute = Constants.InvalidMinute;
int beginSecond = Constants.InvalidSecond;
int endHour;
int endMinute = Constants.InvalidMinute;
int endSecond = Constants.InvalidSecond;
// Get time1 and time2
var hourGroup = match.Groups[Constants.HourGroupName];
var hourStr = hourGroup.Captures[0].Value;
if (config.Numbers.ContainsKey(hourStr))
{
beginHour = config.Numbers[hourStr];
}
else
{
beginHour = int.Parse(hourStr);
}
hourStr = hourGroup.Captures[1].Value;
if (config.Numbers.ContainsKey(hourStr))
{
endHour = config.Numbers[hourStr];
}
else
{
endHour = int.Parse(hourStr);
}
var time1StartIndex = match.Groups["time1"].Index;
var time1EndIndex = time1StartIndex + match.Groups["time1"].Length;
var time2StartIndex = match.Groups["time2"].Index;
var time2EndIndex = time2StartIndex + match.Groups["time2"].Length;
// Get beginMinute (if exists) and endMinute (if exists)
for (int i = 0; i < match.Groups[Constants.MinuteGroupName].Captures.Count; i++)
{
var minuteCapture = match.Groups[Constants.MinuteGroupName].Captures[i];
if (minuteCapture.Index >= time1StartIndex && minuteCapture.Index + minuteCapture.Length <= time1EndIndex)
{
beginMinute = int.Parse(minuteCapture.Value);
}
else if (minuteCapture.Index >= time2StartIndex && minuteCapture.Index + minuteCapture.Length <= time2EndIndex)
{
endMinute = int.Parse(minuteCapture.Value);
}
}
// Get beginSecond (if exists) and endSecond (if exists)
for (int i = 0; i < match.Groups[Constants.SecondGroupName].Captures.Count; i++)
{
var secondCapture = match.Groups[Constants.SecondGroupName].Captures[i];
if (secondCapture.Index >= time1StartIndex && secondCapture.Index + secondCapture.Length <= time1EndIndex)
{
beginSecond = int.Parse(secondCapture.Value);
}
else if (secondCapture.Index >= time2StartIndex && secondCapture.Index + secondCapture.Length <= time2EndIndex)
{
endSecond = int.Parse(secondCapture.Value);
}
}
// Desc here means descriptions like "am / pm / o'clock"
// Get leftDesc (if exists) and rightDesc (if exists)
var leftDesc = match.Groups["leftDesc"].Value;
var rightDesc = match.Groups["rightDesc"].Value;
for (int i = 0; i < match.Groups[Constants.DescGroupName].Captures.Count; i++)
{
var descCapture = match.Groups[Constants.DescGroupName].Captures[i];
if (descCapture.Index >= time1StartIndex && descCapture.Index + descCapture.Length <= time1EndIndex && string.IsNullOrEmpty(leftDesc))
{
leftDesc = descCapture.Value;
}
else if (descCapture.Index >= time2StartIndex && descCapture.Index + descCapture.Length <= time2EndIndex && string.IsNullOrEmpty(rightDesc))
{
rightDesc = descCapture.Value;
}
}
var beginDateTime = DateObject.MinValue.SafeCreateFromValue(year, month, day, beginHour, beginMinute >= 0 ? beginMinute : 0, beginSecond >= 0 ? beginSecond : 0);
var endDateTime = DateObject.MinValue.SafeCreateFromValue(year, month, day, endHour, endMinute >= 0 ? endMinute : 0, endSecond >= 0 ? endSecond : 0);
var hasLeftAm = !string.IsNullOrEmpty(leftDesc) && leftDesc.ToLower().StartsWith("a");
var hasLeftPm = !string.IsNullOrEmpty(leftDesc) && leftDesc.ToLower().StartsWith("p");
var hasRightAm = !string.IsNullOrEmpty(rightDesc) && rightDesc.ToLower().StartsWith("a");
var hasRightPm = !string.IsNullOrEmpty(rightDesc) && rightDesc.ToLower().StartsWith("p");
var hasLeft = hasLeftAm || hasLeftPm;
var hasRight = hasRightAm || hasRightPm;
// Both time point has description like 'am' or 'pm'
if (hasLeft && hasRight)
{
if (hasLeftAm)
{
if (beginHour >= Constants.HalfDayHourCount)
{
beginDateTime = beginDateTime.AddHours(-Constants.HalfDayHourCount);
}
}
else
{
if (beginHour < Constants.HalfDayHourCount)
{
beginDateTime = beginDateTime.AddHours(Constants.HalfDayHourCount);
}
}
if (hasRightAm)
{
if (endHour > Constants.HalfDayHourCount)
{
endDateTime = endDateTime.AddHours(-Constants.HalfDayHourCount);
}
}
else
{
if (endHour < Constants.HalfDayHourCount)
{
endDateTime = endDateTime.AddHours(Constants.HalfDayHourCount);
}
}
}
else if (hasLeft || hasRight)
{
// one of the time point has description like 'am' or 'pm'
if (hasLeftAm)
{
if (beginHour >= Constants.HalfDayHourCount)
{
beginDateTime = beginDateTime.AddHours(-Constants.HalfDayHourCount);
}
if (endHour < Constants.HalfDayHourCount)
{
if (endDateTime < beginDateTime)
{
endDateTime = endDateTime.AddHours(Constants.HalfDayHourCount);
}
}
}
else if (hasLeftPm)
{
if (beginHour < Constants.HalfDayHourCount)
{
beginDateTime = beginDateTime.AddHours(Constants.HalfDayHourCount);
}
if (endHour < Constants.HalfDayHourCount)
{
if (endDateTime < beginDateTime)
{
var span = beginDateTime - endDateTime;
endDateTime = endDateTime.AddHours(span.TotalHours >= Constants.HalfDayHourCount ?
24 :
Constants.HalfDayHourCount);
}
}
}
if (hasRightAm)
{
if (endHour >= Constants.HalfDayHourCount)
{
endDateTime = endDateTime.AddHours(-Constants.HalfDayHourCount);
}
if (beginHour < Constants.HalfDayHourCount)
{
if (endDateTime < beginDateTime)
{
beginDateTime = beginDateTime.AddHours(-Constants.HalfDayHourCount);
}
}
}
else if (hasRightPm)
{
if (endHour < Constants.HalfDayHourCount)
{
endDateTime = endDateTime.AddHours(Constants.HalfDayHourCount);
}
if (beginHour < Constants.HalfDayHourCount)
{
if (endDateTime < beginDateTime)
{
beginDateTime = beginDateTime.AddHours(-Constants.HalfDayHourCount);
}
else
{
var span = endDateTime - beginDateTime;
if (span.TotalHours > Constants.HalfDayHourCount)
{
beginDateTime = beginDateTime.AddHours(Constants.HalfDayHourCount);
}
}
}
}
}
// No 'am' or 'pm' indicator
else if (beginHour <= Constants.HalfDayHourCount && endHour <= Constants.HalfDayHourCount)
{
if (beginHour > endHour)
{
if (beginHour == Constants.HalfDayHourCount)
{
beginDateTime = beginDateTime.AddHours(-Constants.HalfDayHourCount);
}
else
{
endDateTime = endDateTime.AddHours(Constants.HalfDayHourCount);
}
}
ret.Comment = Constants.Comment_AmPm;
}
if (endDateTime < beginDateTime)
{
endDateTime = endDateTime.AddHours(24);
}
var beginStr = DateTimeFormatUtil.ShortTime(beginDateTime.Hour, beginMinute, beginSecond);
var endStr = DateTimeFormatUtil.ShortTime(endDateTime.Hour, endMinute, endSecond);
ret.Success = true;
ret.Timex = $"({beginStr},{endStr},{DateTimeFormatUtil.LuisTimeSpan(endDateTime - beginDateTime)})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(
beginDateTime,
endDateTime);
ret.SubDateTimeEntities = new List <object>();
// In SplitDateAndTime mode, time points will be get from these SubDateTimeEntities
// Cases like "from 4 to 5pm", "4" should not be treated as SubDateTimeEntity
if (hasLeft || beginMinute != Constants.InvalidMinute || beginSecond != Constants.InvalidSecond)
{
var er = new ExtractResult()
{
Start = time1StartIndex,
Length = time1EndIndex - time1StartIndex,
Text = text.Substring(time1StartIndex, time1EndIndex - time1StartIndex),
Type = $"{Constants.SYS_DATETIME_TIME}",
};
var pr = this.config.TimeParser.Parse(er, referenceTime);
ret.SubDateTimeEntities.Add(pr);
}
// Cases like "from 4am to 5", "5" should not be treated as SubDateTimeEntity
if (hasRight || endMinute != Constants.InvalidMinute || endSecond != Constants.InvalidSecond)
{
var er = new ExtractResult
{
Start = time2StartIndex,
Length = time2EndIndex - time2StartIndex,
Text = text.Substring(time2StartIndex, time2EndIndex - time2StartIndex),
Type = $"{Constants.SYS_DATETIME_TIME}",
};
var pr = this.config.TimeParser.Parse(er, referenceTime);
ret.SubDateTimeEntities.Add(pr);
}
ret.Success = true;
}
return(ret);
}
// Merge a Date entity and a Time entity
private DateTimeResolutionResult MergeDateAndTime(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var er1 = this.config.DateExtractor.Extract(text, referenceTime);
if (er1.Count == 0)
{
er1 = this.config.DateExtractor.Extract(this.config.TokenBeforeDate + text, referenceTime);
if (er1.Count == 1)
{
er1[0].Start -= this.config.TokenBeforeDate.Length;
}
else
{
return(ret);
}
}
else
{
// This is to understand if there is an ambiguous token in the text. For some languages (e.g. spanish),
// the same word could mean different things (e.g a time in the day or an specific day).
if (this.config.ContainsAmbiguousToken(text, er1[0].Text))
{
return(ret);
}
}
var er2 = this.config.TimeExtractor.Extract(text, referenceTime);
if (er2.Count == 0)
{
// Here we filter out "morning, afternoon, night..." time entities
er2 = this.config.TimeExtractor.Extract(this.config.TokenBeforeTime + text, referenceTime);
if (er2.Count == 1)
{
er2[0].Start -= this.config.TokenBeforeTime.Length;
}
else if (er2.Count == 0)
{
// check whether there is a number being used as a time point
bool hasTimeNumber = false;
var numErs = this.config.IntegerExtractor.Extract(text);
if (numErs.Count > 0 && er1.Count == 1)
{
foreach (var num in numErs)
{
var middleBegin = er1[0].Start + er1[0].Length ?? 0;
var middleEnd = num.Start ?? 0;
if (middleBegin > middleEnd)
{
continue;
}
var middleStr = text.Substring(middleBegin, middleEnd - middleBegin).Trim();
var match = this.config.DateNumberConnectorRegex.Match(middleStr);
if (string.IsNullOrEmpty(middleStr) || match.Success)
{
num.Type = Constants.SYS_DATETIME_TIME;
er2.Add(num);
hasTimeNumber = true;
}
}
}
if (!hasTimeNumber)
{
return(ret);
}
}
}
// Handle cases like "Oct. 5 in the afternoon at 7:00";
// in this case "5 in the afternoon" will be extracted as a Time entity
var correctTimeIdx = 0;
while (correctTimeIdx < er2.Count && er2[correctTimeIdx].IsOverlap(er1[0]))
{
correctTimeIdx++;
}
if (correctTimeIdx >= er2.Count)
{
return(ret);
}
var pr1 = this.config.DateParser.Parse(er1[0], referenceTime.Date);
var pr2 = this.config.TimeParser.Parse(er2[correctTimeIdx], referenceTime);
if (pr1.Value == null || pr2.Value == null)
{
return(ret);
}
var futureDate = (DateObject)((DateTimeResolutionResult)pr1.Value).FutureValue;
var pastDate = (DateObject)((DateTimeResolutionResult)pr1.Value).PastValue;
var time = (DateObject)((DateTimeResolutionResult)pr2.Value).FutureValue;
var hour = time.Hour;
var min = time.Minute;
var sec = time.Second;
// Handle morning, afternoon
if (this.config.PMTimeRegex.IsMatch(text) && WithinAfternoonHours(hour))
{
hour += Constants.HalfDayHourCount;
}
else if (this.config.AMTimeRegex.IsMatch(text) && WithinMorningHoursAndNoon(hour, min, sec))
{
hour -= Constants.HalfDayHourCount;
}
var timeStr = pr2.TimexStr;
if (timeStr.EndsWith(Constants.Comment_AmPm, StringComparison.Ordinal))
{
timeStr = timeStr.Substring(0, timeStr.Length - 4);
}
timeStr = "T" + hour.ToString("D2") + timeStr.Substring(3);
ret.Timex = pr1.TimexStr + timeStr;
var val = (DateTimeResolutionResult)pr2.Value;
if (hour <= Constants.HalfDayHourCount && !this.config.PMTimeRegex.IsMatch(text) && !this.config.AMTimeRegex.IsMatch(text) &&
!string.IsNullOrEmpty(val.Comment))
{
ret.Comment = Constants.Comment_AmPm;
}
ret.FutureValue = DateObject.MinValue.SafeCreateFromValue(futureDate.Year, futureDate.Month, futureDate.Day, hour, min, sec);
ret.PastValue = DateObject.MinValue.SafeCreateFromValue(pastDate.Year, pastDate.Month, pastDate.Day, hour, min, sec);
// Handle case like "Wed Oct 26 15:50:06 2016" which year and month separated by time.
var timeSuffix = text.Substring(er2[0].Start + er2[0].Length ?? 0);
var matchYear = this.config.YearRegex.Match(timeSuffix);
if (matchYear.Success && ((DateObject)((DateTimeResolutionResult)pr1.Value).FutureValue).Year != ((DateObject)((DateTimeResolutionResult)pr1.Value).PastValue).Year)
{
var year = ((BaseDateExtractor)this.config.DateExtractor).GetYearFromText(matchYear);
var dateSuffix = text.Substring(er1[0].Start + er1[0].Length ?? 0);
var checkYear = this.config.DateExtractor.GetYearFromText(this.config.YearRegex.Match(dateSuffix));
if (year >= Constants.MinYearNum && year <= Constants.MaxYearNum && year == checkYear)
{
ret.FutureValue = DateObject.MinValue.SafeCreateFromValue(year, futureDate.Month, futureDate.Day, hour, min, sec);
ret.PastValue = DateObject.MinValue.SafeCreateFromValue(year, pastDate.Month, pastDate.Day, hour, min, sec);
ret.Timex = year + pr1.TimexStr.Substring(4) + timeStr;
}
}
ret.Success = true;
// Change the value of time object
pr2.TimexStr = timeStr;
if (!string.IsNullOrEmpty(ret.Comment))
{
((DateTimeResolutionResult)pr2.Value).Comment = ret.Comment.Equals(Constants.Comment_AmPm, StringComparison.Ordinal) ?
Constants.Comment_AmPm : string.Empty;
}
// Add the date and time object in case we want to split them
ret.SubDateTimeEntities = new List <object> {
pr1, pr2
};
// Add timezone
ret.TimeZoneResolution = ((DateTimeResolutionResult)pr2.Value).TimeZoneResolution;
return(ret);
}
private DateTimeResolutionResult ParseTimeOfToday(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim();
int hour = 0, min = 0, sec = 0;
string timeStr;
var wholeMatch = this.config.SimpleTimeOfTodayAfterRegex.MatchExact(trimmedText, trim: true);
if (!wholeMatch.Success)
{
wholeMatch = this.config.SimpleTimeOfTodayBeforeRegex.MatchExact(trimmedText, trim: true);
}
if (wholeMatch.Success)
{
var hourStr = wholeMatch.Groups[Constants.HourGroupName].Value;
if (string.IsNullOrEmpty(hourStr))
{
hourStr = wholeMatch.Groups["hournum"].Value;
hour = this.config.Numbers[hourStr];
}
else
{
hour = int.Parse(hourStr);
}
timeStr = "T" + hour.ToString("D2");
}
else
{
var ers = this.config.TimeExtractor.Extract(trimmedText, referenceTime);
if (ers.Count != 1)
{
ers = this.config.TimeExtractor.Extract(this.config.TokenBeforeTime + trimmedText, referenceTime);
if (ers.Count == 1)
{
ers[0].Start -= this.config.TokenBeforeTime.Length;
}
else
{
return(ret);
}
}
var pr = this.config.TimeParser.Parse(ers[0], referenceTime);
if (pr.Value == null)
{
return(ret);
}
var time = (DateObject)((DateTimeResolutionResult)pr.Value).FutureValue;
hour = time.Hour;
min = time.Minute;
sec = time.Second;
timeStr = pr.TimexStr;
}
var match = this.config.SpecificTimeOfDayRegex.Match(trimmedText);
if (match.Success)
{
var matchStr = match.Value;
// Handle "last", "next"
var swift = this.config.GetSwiftDay(matchStr);
var date = referenceTime.AddDays(swift).Date;
// Handle "morning", "afternoon"
hour = this.config.GetHour(matchStr, hour);
// In this situation, timeStr cannot end up with "ampm", because we always have a "morning" or "night"
if (timeStr.EndsWith(Constants.Comment_AmPm, StringComparison.Ordinal))
{
timeStr = timeStr.Substring(0, timeStr.Length - 4);
}
timeStr = "T" + hour.ToString("D2") + timeStr.Substring(3);
ret.Timex = DateTimeFormatUtil.FormatDate(date) + timeStr;
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(date.Year, date.Month, date.Day, hour, min, sec);
ret.Success = true;
return(ret);
}
return(ret);
}
private DateTimeResolutionResult ParseWeekdayOfMonth(string text, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim();
var match = this.config.WeekDayOfMonthRegex.Match(trimmedText);
if (!match.Success)
{
return(ret);
}
var cardinalStr = match.Groups["cardinal"].Value;
var weekdayStr = match.Groups["weekday"].Value;
var monthStr = match.Groups["month"].Value;
var noYear = false;
int year;
var cardinal = this.config.IsCardinalLast(cardinalStr) ? 5 : this.config.CardinalMap[cardinalStr];
var weekday = this.config.DayOfWeek[weekdayStr];
int month;
if (string.IsNullOrEmpty(monthStr))
{
var swift = this.config.GetSwiftMonthOrYear(trimmedText);
month = referenceDate.AddMonths(swift).Month;
year = referenceDate.AddMonths(swift).Year;
}
else
{
month = this.config.MonthOfYear[monthStr];
year = referenceDate.Year;
noYear = true;
}
var value = ComputeDate(cardinal, weekday, month, year);
if (value.Month != month)
{
cardinal -= 1;
value = value.AddDays(-7);
}
var futureDate = value;
var pastDate = value;
if (noYear && futureDate < referenceDate)
{
futureDate = ComputeDate(cardinal, weekday, month, year + 1);
if (futureDate.Month != month)
{
futureDate = futureDate.AddDays(-7);
}
}
if (noYear && pastDate >= referenceDate)
{
pastDate = ComputeDate(cardinal, weekday, month, year - 1);
if (pastDate.Month != month)
{
pastDate = pastDate.AddDays(-7);
}
}
// Here is a very special case, timeX follow future date
ret.Timex = $@"XXXX-{month.ToString("D2")}-WXX-{weekday}-#{cardinal}";
ret.FutureValue = futureDate;
ret.PastValue = pastDate;
ret.Success = true;
return(ret);
}
private DateTimeResolutionResult Match2Time(Match match, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
int hour = 0,
min = 0,
second = 0,
day = referenceTime.Day,
month = referenceTime.Month,
year = referenceTime.Year;
bool hasMin = false, hasSec = false, hasAm = false, hasPm = false;
var engTimeStr = match.Groups["engtime"].Value;
if (!string.IsNullOrEmpty(engTimeStr))
{
// get hour
var hourStr = match.Groups["hournum"].Value.ToLower();
hour = this.config.Numbers[hourStr];
// get minute
var minStr = match.Groups["minnum"].Value;
var tensStr = match.Groups["tens"].Value;
if (!string.IsNullOrEmpty(minStr))
{
min = this.config.Numbers[minStr];
if (!string.IsNullOrEmpty(tensStr))
{
min += this.config.Numbers[tensStr];
}
hasMin = true;
}
}
else
{
// get hour
var hourStr = match.Groups["hour"].Value;
if (string.IsNullOrEmpty(hourStr))
{
hourStr = match.Groups["hournum"].Value.ToLower();
if (!this.config.Numbers.TryGetValue(hourStr, out hour))
{
return(ret);
}
}
else
{
hour = int.Parse(hourStr);
}
// get minute
var minStr = match.Groups["min"].Value.ToLower();
if (string.IsNullOrEmpty(minStr))
{
minStr = match.Groups["minnum"].Value;
if (!string.IsNullOrEmpty(minStr))
{
min = this.config.Numbers[minStr];
hasMin = true;
}
var tensStr = match.Groups["tens"].Value;
if (!string.IsNullOrEmpty(tensStr))
{
min += this.config.Numbers[tensStr];
hasMin = true;
}
}
else
{
min = int.Parse(minStr);
hasMin = true;
}
// get second
var secStr = match.Groups["sec"].Value.ToLower();
if (!string.IsNullOrEmpty(secStr))
{
second = int.Parse(secStr);
hasSec = true;
}
}
//adjust by desc string
var descStr = match.Groups["desc"].Value.ToLower();
if (!string.IsNullOrEmpty(descStr))
{
//ampm is a special case in which at 6ampm = at 6
if (config.UtilityConfiguration.AmDescRegex.Match(descStr.ToLower()).Success ||
config.UtilityConfiguration.AmPmDescRegex.Match(descStr.ToLower()).Success)
{
if (hour >= 12)
{
hour -= 12;
}
if (!config.UtilityConfiguration.AmPmDescRegex.Match(descStr.ToLower()).Success)
{
hasAm = true;
}
}
else if (config.UtilityConfiguration.PmDescRegex.Match(descStr.ToLower()).Success)
{
if (hour < 12)
{
hour += 12;
}
hasPm = true;
}
}
// adjust min by prefix
var timePrefix = match.Groups["prefix"].Value.ToLower();
if (!string.IsNullOrEmpty(timePrefix))
{
this.config.AdjustByPrefix(timePrefix, ref hour, ref min, ref hasMin);
}
// adjust hour by suffix
var timeSuffix = match.Groups["suffix"].Value.ToLower();
if (!string.IsNullOrEmpty(timeSuffix))
{
this.config.AdjustBySuffix(timeSuffix, ref hour, ref min, ref hasMin, ref hasAm, ref hasPm);
}
if (hour == 24)
{
hour = 0;
}
ret.Timex = "T" + hour.ToString("D2");
if (hasMin)
{
ret.Timex += ":" + min.ToString("D2");
}
if (hasSec)
{
ret.Timex += ":" + second.ToString("D2");
}
if (hour <= 12 && !hasPm && !hasAm)
{
ret.Comment = "ampm";
}
ret.FutureValue = ret.PastValue = new DateObject(year, month, day, hour, min, second);
ret.Success = true;
return(ret);
}
private DateTimeResolutionResult Match2Date(Match match, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
var holidayStr = match.Groups["holiday"].Value;
var year = referenceDate.Year;
var hasYear = false;
var yearNum = match.Groups["year"].Value;
var yearCJK = match.Groups[Constants.YearCJKGroupName].Value;
var yearRel = match.Groups["yearrel"].Value;
if (!string.IsNullOrEmpty(yearNum))
{
hasYear = true;
yearNum = this.config.SanitizeYearToken(yearNum);
year = int.Parse(yearNum, CultureInfo.InvariantCulture);
}
else if (!string.IsNullOrEmpty(yearCJK))
{
hasYear = true;
yearCJK = this.config.SanitizeYearToken(yearCJK);
year = ConvertToInteger(yearCJK);
}
else if (!string.IsNullOrEmpty(yearRel))
{
hasYear = true;
int swift = this.config.GetSwiftYear(yearRel);
if (swift >= -1)
{
year += swift;
}
}
if (year < 100 && year >= 90)
{
year += Constants.BASE_YEAR_PAST_CENTURY;
}
else if (year < 20)
{
year += Constants.BASE_YEAR_CURRENT_CENTURY;
}
if (!string.IsNullOrEmpty(holidayStr))
{
DateObject value;
string timexStr;
if (this.config.FixedHolidaysDict.ContainsKey(holidayStr))
{
value = this.config.FixedHolidaysDict[holidayStr](year);
timexStr = $"-{value.Month:D2}-{value.Day:D2}";
}
else
{
if (this.config.HolidayFuncDict.ContainsKey(holidayStr))
{
value = this.config.HolidayFuncDict[holidayStr](year);
timexStr = this.config.NoFixedTimex[holidayStr];
}
else
{
return(ret);
}
}
if (hasYear)
{
ret.Timex = year.ToString("D4", CultureInfo.InvariantCulture) + timexStr;
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
ret.Timex = "XXXX" + timexStr;
ret.FutureValue = GetFutureValue(value, referenceDate, holidayStr);
ret.PastValue = GetPastValue(value, referenceDate, holidayStr);
ret.Success = true;
return(ret);
}
return(ret);
}
// merge the entity with its related contexts and then parse the combine text
private static DateTimeResolutionResult GetResolution(ExtractResult er, DateTimeParseResult pr, DateTimeResolutionResult ret)
{
var parentText = (string)((Dictionary <string, object>)er.Data)[ExtendedModelResult.ParentTextKey];
var type = pr.Type;
var singlePointResolution = string.Empty;
var pastStartPointResolution = string.Empty;
var pastEndPointResolution = string.Empty;
var futureStartPointResolution = string.Empty;
var futureEndPointResolution = string.Empty;
var singlePointType = string.Empty;
var startPointType = string.Empty;
var endPointType = string.Empty;
if (type is Constants.SYS_DATETIME_DATEPERIOD or Constants.SYS_DATETIME_TIMEPERIOD or Constants.SYS_DATETIME_DATETIMEPERIOD)
{
switch (type)
{
case Constants.SYS_DATETIME_DATEPERIOD:
startPointType = TimeTypeConstants.START_DATE;
endPointType = TimeTypeConstants.END_DATE;
pastStartPointResolution = DateTimeFormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.PastValue).Item1);
pastEndPointResolution = DateTimeFormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.PastValue).Item2);
futureStartPointResolution = DateTimeFormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.FutureValue).Item1);
futureEndPointResolution = DateTimeFormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.FutureValue).Item2);
break;
case Constants.SYS_DATETIME_DATETIMEPERIOD:
startPointType = TimeTypeConstants.START_DATETIME;
endPointType = TimeTypeConstants.END_DATETIME;
if (ret.PastValue is Tuple <DateObject, DateObject> tuple)
{
pastStartPointResolution = DateTimeFormatUtil.FormatDateTime(tuple.Item1);
pastEndPointResolution = DateTimeFormatUtil.FormatDateTime(tuple.Item2);
futureStartPointResolution =
DateTimeFormatUtil.FormatDateTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item1);
futureEndPointResolution =
DateTimeFormatUtil.FormatDateTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item2);
}
else if (ret.PastValue is DateObject datetime)
{
pastStartPointResolution = DateTimeFormatUtil.FormatDateTime(datetime);
futureStartPointResolution = DateTimeFormatUtil.FormatDateTime((DateObject)ret.FutureValue);
}
break;
case Constants.SYS_DATETIME_TIMEPERIOD:
startPointType = TimeTypeConstants.START_TIME;
endPointType = TimeTypeConstants.END_TIME;
pastStartPointResolution = DateTimeFormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.PastValue).Item1);
pastEndPointResolution = DateTimeFormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.PastValue).Item2);
futureStartPointResolution = DateTimeFormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item1);
futureEndPointResolution = DateTimeFormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item2);
break;
}
}
// match several other cases
// including '今天', '后天', '十三日'
protected DateTimeResolutionResult ParseImplicitDate(string text, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
// handle "十二日" "明年这个月三日" "本月十一日"
var match = this.config.SpecialDate.MatchExact(text, trim: true);
if (match.Success)
{
var yearStr = match.Groups["thisyear"].Value;
var monthStr = match.Groups["thismonth"].Value;
var dayStr = match.Groups["day"].Value;
int month = referenceDate.Month, year = referenceDate.Year;
var day = this.config.DayOfMonth[dayStr];
bool hasYear = false, hasMonth = false;
if (!string.IsNullOrEmpty(monthStr))
{
hasMonth = true;
if (this.config.NextRe.Match(monthStr).Success)
{
month++;
if (month == Constants.MaxMonth + 1)
{
month = Constants.MinMonth;
year++;
}
}
else if (this.config.LastRe.Match(monthStr).Success)
{
month--;
if (month == Constants.MinMonth - 1)
{
month = Constants.MaxMonth;
year--;
}
}
if (!string.IsNullOrEmpty(yearStr))
{
hasYear = true;
if (this.config.NextRe.Match(yearStr).Success)
{
++year;
}
else if (this.config.LastRe.Match(yearStr).Success)
{
--year;
}
}
}
ret.Timex = DateTimeFormatUtil.LuisDate(hasYear ? year : -1, hasMonth ? month : -1, day);
DateObject futureDate, pastDate;
if (day > GetMonthMaxDay(year, month))
{
var futureMonth = month + 1;
var pastMonth = month - 1;
var futureYear = year;
var pastYear = year;
if (futureMonth == Constants.MaxMonth + 1)
{
futureMonth = Constants.MinMonth;
futureYear = year++;
}
if (pastMonth == Constants.MinMonth - 1)
{
pastMonth = Constants.MaxMonth;
pastYear = year--;
}
var isFutureValid = DateObjectExtension.IsValidDate(futureYear, futureMonth, day);
var isPastValid = DateObjectExtension.IsValidDate(pastYear, pastMonth, day);
if (isFutureValid && isPastValid)
{
futureDate = DateObject.MinValue.SafeCreateFromValue(futureYear, futureMonth, day);
pastDate = DateObject.MinValue.SafeCreateFromValue(pastYear, pastMonth, day);
}
else if (isFutureValid && !isPastValid)
{
futureDate = pastDate = DateObject.MinValue.SafeCreateFromValue(futureYear, futureMonth, day);
}
else if (!isFutureValid && !isPastValid)
{
futureDate = pastDate = DateObject.MinValue.SafeCreateFromValue(pastYear, pastMonth, day);
}
else
{
// Fall back to normal cases, might lead to resolution failure
// TODO: Ideally, this failure should be filtered out in extract phase
futureDate = pastDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
}
}
else
{
futureDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
pastDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
if (!hasMonth)
{
if (futureDate < referenceDate)
{
if (IsValidDate(year, month + 1, day))
{
futureDate = futureDate.AddMonths(1);
}
}
if (pastDate >= referenceDate)
{
if (IsValidDate(year, month - 1, day))
{
pastDate = pastDate.AddMonths(-1);
}
else if (DateContext.IsFeb29th(year, month - 1, day))
{
pastDate = pastDate.AddMonths(-2);
}
}
}
else if (!hasYear)
{
if (futureDate < referenceDate)
{
if (IsValidDate(year + 1, month, day))
{
futureDate = futureDate.AddYears(1);
}
}
if (pastDate >= referenceDate)
{
if (IsValidDate(year - 1, month, day))
{
pastDate = pastDate.AddYears(-1);
}
}
}
}
ret.FutureValue = futureDate;
ret.PastValue = pastDate;
ret.Success = true;
return(ret);
}
// handle cases like "昨日", "明日", "大后天"
match = this.config.SpecialDayRegex.MatchExact(text, trim: true);
if (match.Success)
{
var value = referenceDate.AddDays(this.config.GetSwiftDay(match.Value));
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(value.Year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
if (!ret.Success)
{
ret = MatchThisWeekday(text, referenceDate);
}
if (!ret.Success)
{
ret = MatchNextWeekday(text, referenceDate);
}
if (!ret.Success)
{
ret = MatchLastWeekday(text, referenceDate);
}
if (!ret.Success)
{
ret = MatchWeekdayAlone(text, referenceDate);
}
return(ret);
}
private DateTimeResolutionResult ParseMergedDuration(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var durationExtractor = this.config.DurationExtractor;
// DurationExtractor without parameter will not extract merged duration
var ers = durationExtractor.Extract(text, referenceTime);
// only handle merged duration cases like "1 month 21 days"
if (ers.Count <= 1)
{
ret.Success = false;
return(ret);
}
var start = ers[0].Start ?? 0;
if (start != 0)
{
var beforeStr = text.Substring(0, start - 1);
if (!string.IsNullOrWhiteSpace(beforeStr))
{
return(ret);
}
}
var end = ers[ers.Count - 1].Start + ers[ers.Count - 1].Length ?? 0;
if (end != text.Length)
{
var afterStr = text.Substring(end);
if (!string.IsNullOrWhiteSpace(afterStr))
{
return(ret);
}
}
var prs = new List <DateTimeParseResult>();
var timexDict = new Dictionary <string, string>();
// insert timex into a dictionary
foreach (var er in ers)
{
var unitRegex = this.config.DurationUnitRegex;
var unitMatch = unitRegex.Match(er.Text);
if (unitMatch.Success)
{
var pr = (DateTimeParseResult)Parse(er);
if (pr.Value != null)
{
timexDict.Add(this.config.UnitMap[unitMatch.Groups["unit"].Value], pr.TimexStr);
prs.Add(pr);
}
}
}
// sort the timex using the granularity of the duration, "P1M23D" for "1 month 23 days" and "23 days 1 month"
if (prs.Count == ers.Count)
{
ret.Timex = TimexUtility.GenerateCompoundDurationTimex(timexDict, this.config.UnitValueMap);
double value = 0;
foreach (var pr in prs)
{
value += double.Parse(((DateTimeResolutionResult)pr.Value).FutureValue.ToString(), CultureInfo.InvariantCulture);
}
ret.FutureValue = ret.PastValue = value;
}
ret.Success = true;
return(ret);
}
protected virtual DateTimeResolutionResult ParseWeekdayOfMonth(string text, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim();
var match = this.config.WeekDayOfMonthRegex.Match(trimmedText);
if (!match.Success)
{
return(ret);
}
var cardinalStr = match.Groups["cardinal"].Value;
var weekdayStr = match.Groups["weekday"].Value;
var monthStr = match.Groups["month"].Value;
var noYear = false;
int year;
int cardinal;
if (cardinalStr.Equals(this.config.LastWeekDayToken, StringComparison.Ordinal))
{
cardinal = 5;
}
else
{
cardinal = this.config.CardinalMap[cardinalStr];
}
var weekday = this.config.DayOfWeek[weekdayStr];
int month;
if (string.IsNullOrEmpty(monthStr))
{
var swift = 0;
if (trimmedText.StartsWith(this.config.NextMonthToken, StringComparison.Ordinal))
{
swift = 1;
}
else if (trimmedText.StartsWith(this.config.LastMonthToken, StringComparison.Ordinal))
{
swift = -1;
}
month = referenceDate.AddMonths(swift).Month;
year = referenceDate.AddMonths(swift).Year;
}
else
{
month = this.config.MonthOfYear[monthStr];
year = referenceDate.Year;
noYear = true;
}
var value = ComputeDate(cardinal, weekday, month, year);
if (value.Month != month)
{
cardinal -= 1;
value = value.AddDays(-7);
}
var futureDate = value;
var pastDate = value;
if (noYear && futureDate < referenceDate)
{
futureDate = ComputeDate(cardinal, weekday, month, year + 1);
if (futureDate.Month != month)
{
futureDate = futureDate.AddDays(-7);
}
}
if (noYear && pastDate >= referenceDate)
{
pastDate = ComputeDate(cardinal, weekday, month, year - 1);
if (pastDate.Month != month)
{
pastDate = pastDate.AddDays(-7);
}
}
// here is a very special case, timeX follows future date
ret.Timex = $@"XXXX-{month:D2}-WXX-{weekday}-#{cardinal}";
ret.FutureValue = futureDate;
ret.PastValue = pastDate;
ret.Success = true;
return(ret);
}
// Parse specific TimeOfDay like "this night", "early morning", "late evening"
protected virtual DateTimeResolutionResult ParseSpecificTimeOfDay(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim().ToLowerInvariant();
var timeText = trimmedText;
var match = this.Config.PeriodTimeOfDayWithDateRegex.Match(trimmedText);
// Extract early/late prefix from text if any
bool hasEarly = false, hasLate = false;
if (match.Success)
{
timeText = match.Groups[Constants.TimeOfDayGroupName].Value;
if (!string.IsNullOrEmpty(match.Groups["early"].Value))
{
hasEarly = true;
ret.Comment = Constants.Comment_Early;
}
if (!hasEarly && !string.IsNullOrEmpty(match.Groups["late"].Value))
{
hasLate = true;
ret.Comment = Constants.Comment_Late;
}
}
else
{
match = this.Config.AmDescRegex.Match(trimmedText);
if (!match.Success)
{
match = this.Config.PmDescRegex.Match(trimmedText);
}
if (match.Success)
{
timeText = match.Value;
}
}
// Handle time of day
// Late/early only works with time of day
// Only standard time of day (morning, afternoon, evening and night) will not directly return
if (!this.Config.GetMatchedTimeRange(timeText, out string timeStr, out int beginHour, out int endHour, out int endMin))
{
return(ret);
}
// Modify time period if "early" or "late" exists
// Since 'time of day' is defined as four hour periods
// the first 2 hours represent early, the later 2 hours represent late
if (hasEarly)
{
endHour = beginHour + 2;
// Handling speical case: night ends with 23:59
if (endMin == 59)
{
endMin = 0;
}
}
else if (hasLate)
{
beginHour = beginHour + 2;
}
if (Config.SpecificTimeOfDayRegex.IsExactMatch(trimmedText, trim: true))
{
var swift = this.Config.GetSwiftPrefix(trimmedText);
var date = referenceTime.AddDays(swift).Date;
int day = date.Day, month = date.Month, year = date.Year;
ret.Timex = DateTimeFormatUtil.FormatDate(date) + timeStr;
ret.FutureValue =
ret.PastValue =
new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(year, month, day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(year, month, day, endHour, endMin, endMin));
ret.Success = true;
return(ret);
}
// Handle Date followed by morning, afternoon and morning, afternoon followed by Date
match = this.Config.PeriodTimeOfDayWithDateRegex.Match(trimmedText);
if (!match.Success)
{
match = this.Config.AmDescRegex.Match(trimmedText);
if (!match.Success)
{
match = this.Config.PmDescRegex.Match(trimmedText);
}
}
if (match.Success)
{
var beforeStr = trimmedText.Substring(0, match.Index).Trim();
var afterStr = trimmedText.Substring(match.Index + match.Length).Trim();
// Eliminate time period, if any
var timePeriodErs = this.Config.TimePeriodExtractor.Extract(beforeStr);
if (timePeriodErs.Count > 0)
{
beforeStr = beforeStr.Remove(timePeriodErs[0].Start ?? 0, timePeriodErs[0].Length ?? 0).Trim();
}
else
{
timePeriodErs = this.Config.TimePeriodExtractor.Extract(afterStr);
if (timePeriodErs.Count > 0)
{
afterStr = afterStr.Remove(timePeriodErs[0].Start ?? 0, timePeriodErs[0].Length ?? 0).Trim();
}
}
var ers = this.Config.DateExtractor.Extract(beforeStr + ' ' + afterStr, referenceTime);
if (ers.Count == 0 || ers[0].Length < beforeStr.Length)
{
var valid = false;
if (ers.Count > 0 && ers[0].Start == 0)
{
var midStr = beforeStr.Substring(ers[0].Start + ers[0].Length ?? 0);
if (string.IsNullOrWhiteSpace(midStr.Replace(',', ' ')))
{
valid = true;
}
}
if (!valid)
{
ers = this.Config.DateExtractor.Extract(afterStr, referenceTime);
if (ers.Count == 0 || ers[0].Length != afterStr.Length)
{
if (ers.Count > 0 && ers[0].Start + ers[0].Length == afterStr.Length)
{
var midStr = afterStr.Substring(0, ers[0].Start ?? 0);
if (string.IsNullOrWhiteSpace(midStr.Replace(',', ' ')))
{
valid = true;
}
}
}
else
{
valid = true;
}
}
if (!valid)
{
return(ret);
}
}
var hasSpecificTimePeriod = false;
if (timePeriodErs.Count > 0)
{
var timePr = this.Config.TimePeriodParser.Parse(timePeriodErs[0], referenceTime);
if (timePr != null)
{
var periodFuture = (Tuple <DateObject, DateObject>)((DateTimeResolutionResult)timePr.Value).FutureValue;
var periodPast = (Tuple <DateObject, DateObject>)((DateTimeResolutionResult)timePr.Value).PastValue;
if (periodFuture == periodPast)
{
beginHour = periodFuture.Item1.Hour;
endHour = periodFuture.Item2.Hour;
}
else
{
if (periodFuture.Item1.Hour >= beginHour || periodFuture.Item2.Hour <= endHour)
{
beginHour = periodFuture.Item1.Hour;
endHour = periodFuture.Item2.Hour;
}
else
{
beginHour = periodPast.Item1.Hour;
endHour = periodPast.Item2.Hour;
}
}
hasSpecificTimePeriod = true;
}
}
var pr = this.Config.DateParser.Parse(ers[0], referenceTime);
var futureDate = (DateObject)((DateTimeResolutionResult)pr.Value).FutureValue;
var pastDate = (DateObject)((DateTimeResolutionResult)pr.Value).PastValue;
if (!hasSpecificTimePeriod)
{
ret.Timex = pr.TimexStr + timeStr;
}
else
{
ret.Timex = string.Format("({0}T{1},{0}T{2},PT{3}H)", pr.TimexStr, beginHour, endHour, endHour - beginHour);
}
ret.FutureValue =
new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(futureDate.Year, futureDate.Month, futureDate.Day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(futureDate.Year, futureDate.Month, futureDate.Day, endHour, endMin, endMin));
ret.PastValue =
new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(pastDate.Year, pastDate.Month, pastDate.Day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(pastDate.Year, pastDate.Month, pastDate.Day, endHour, endMin, endMin));
ret.Success = true;
return(ret);
}
return(ret);
}
// Handle cases like "三天前"
private DateTimeResolutionResult ParserDurationWithAgoAndLater(string text, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
var numStr = string.Empty;
var unitStr = string.Empty;
var durationRes = this.config.DurationExtractor.Extract(text, referenceDate);
if (durationRes.Count > 0)
{
var match = this.config.UnitRegex.Match(text);
if (match.Success)
{
var suffix = text.Substring((int)durationRes[0].Start + (int)durationRes[0].Length).Trim();
var srcUnit = match.Groups["unit"].Value;
var numberStr = text.Substring((int)durationRes[0].Start, match.Index - (int)durationRes[0].Start).Trim();
var number = ConvertChineseToNum(numberStr);
if (this.config.UnitMap.ContainsKey(srcUnit))
{
unitStr = this.config.UnitMap[srcUnit];
var beforeMatch = this.config.BeforeRegex.Match(suffix);
if (beforeMatch.Success && suffix.StartsWith(beforeMatch.Value, StringComparison.Ordinal))
{
DateObject date;
switch (unitStr)
{
case Constants.TimexDay:
date = referenceDate.AddDays(-number);
break;
case Constants.TimexWeek:
date = referenceDate.AddDays(-7 * number);
break;
case Constants.TimexMonthFull:
date = referenceDate.AddMonths(-number);
break;
case Constants.TimexYear:
date = referenceDate.AddYears(-number);
break;
default:
return(ret);
}
ret.Timex = $"{DateTimeFormatUtil.LuisDate(date)}";
ret.FutureValue = ret.PastValue = date;
ret.Success = true;
return(ret);
}
var afterMatch = this.config.AfterRegex.Match(suffix);
if (afterMatch.Success && suffix.StartsWith(afterMatch.Value, StringComparison.Ordinal))
{
DateObject date;
switch (unitStr)
{
case Constants.TimexDay:
date = referenceDate.AddDays(number);
break;
case Constants.TimexWeek:
date = referenceDate.AddDays(7 * number);
break;
case Constants.TimexMonthFull:
date = referenceDate.AddMonths(number);
break;
case Constants.TimexYear:
date = referenceDate.AddYears(number);
break;
default:
return(ret);
}
ret.Timex = $"{DateTimeFormatUtil.LuisDate(date)}";
ret.FutureValue = ret.PastValue = date;
ret.Success = true;
return(ret);
}
}
}
}
return(ret);
}
// Handle cases like "Monday 7-9", where "7-9" can't be extracted by the TimePeriodExtractor
private DateTimeResolutionResult ParsePureNumberCases(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
var trimmedText = text.Trim().ToLower();
var match = this.Config.PureNumberFromToRegex.Match(trimmedText);
if (!match.Success)
{
match = this.Config.PureNumberBetweenAndRegex.Match(trimmedText);
}
if (match.Success && (match.Index == 0 || match.Index + match.Length == trimmedText.Length))
{
int beginHour, endHour;
ret.Comment = ParseTimePeriod(match, out beginHour, out endHour);
var dateStr = string.Empty;
// Parse following date
var dateExtractResult = this.Config.DateExtractor.Extract(trimmedText.Replace(match.Value, string.Empty), referenceTime);
DateObject futureDate, pastDate;
if (dateExtractResult.Count > 0)
{
var pr = this.Config.DateParser.Parse(dateExtractResult[0], referenceTime);
if (pr.Value != null)
{
futureDate = (DateObject)((DateTimeResolutionResult)pr.Value).FutureValue;
pastDate = (DateObject)((DateTimeResolutionResult)pr.Value).PastValue;
dateStr = pr.TimexStr;
}
else
{
return(ret);
}
}
else
{
return(ret);
}
var pastHours = endHour - beginHour;
var beginTimex = TimexUtility.CombineDateAndTimeTimex(dateStr, DateTimeFormatUtil.ShortTime(beginHour));
var endTimex = TimexUtility.CombineDateAndTimeTimex(dateStr, DateTimeFormatUtil.ShortTime(endHour));
var durationTimex = TimexUtility.GenerateDurationTimex(endHour - beginHour, Constants.TimexHour, isLessThanDay: true);
ret.Timex = TimexUtility.GenerateDateTimePeriodTimex(beginTimex, endTimex, durationTimex);
ret.FutureValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(futureDate.Year, futureDate.Month, futureDate.Day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(futureDate.Year, futureDate.Month, futureDate.Day, endHour, 0, 0));
ret.PastValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(pastDate.Year, pastDate.Month, pastDate.Day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(pastDate.Year, pastDate.Month, pastDate.Day, endHour, 0, 0));
ret.Success = true;
}
return(ret);
}
private DateTimeResolutionResult Match2Date(Match match, DateObject referenceDate)
{
var ret = new DateTimeResolutionResult();
var holidayStr = this.config.SanitizeHolidayToken(match.Groups["holiday"].Value.ToLowerInvariant());
// get year (if exist)
var yearStr = match.Groups["year"].Value.ToLower();
var orderStr = match.Groups["order"].Value.ToLower();
int year;
var hasYear = false;
if (!string.IsNullOrEmpty(yearStr))
{
year = int.Parse(yearStr);
hasYear = true;
}
else if (!string.IsNullOrEmpty(orderStr))
{
var swift = this.config.GetSwiftYear(orderStr);
if (swift < -1)
{
return(ret);
}
year = referenceDate.Year + swift;
hasYear = true;
}
else
{
year = referenceDate.Year;
}
string holidayKey = string.Empty;
foreach (var holidayPair in this.config.HolidayNames)
{
if (holidayPair.Value.Contains(holidayStr))
{
holidayKey = holidayPair.Key;
break;
}
}
var timexStr = string.Empty;
if (!string.IsNullOrEmpty(holidayKey))
{
var value = referenceDate;
Func <int, DateObject> function;
if (this.config.HolidayFuncDictionary.TryGetValue(holidayKey, out function))
{
value = function(year);
this.config.VariableHolidaysTimexDictionary.TryGetValue(holidayKey, out timexStr);
if (string.IsNullOrEmpty(timexStr))
{
timexStr = $"-{value.Month:D2}-{value.Day:D2}";
}
}
if (function == null)
{
return(ret);
}
if (hasYear)
{
ret.Timex = year.ToString("D4") + timexStr;
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
ret.Timex = "XXXX" + timexStr;
ret.FutureValue = GetFutureValue(value, referenceDate, holidayKey);
ret.PastValue = GetPastValue(value, referenceDate, holidayKey);
ret.Success = true;
return(ret);
}
return(ret);
}
// TODO: this can be abstracted with the similar method in BaseDatePeriodParser
// Parse "in 20 minutes"
private DateTimeResolutionResult ParseDuration(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
// For the rest of datetime, it will be handled in next function
if (Config.RestOfDateTimeRegex.IsMatch(text))
{
return(ret);
}
var ers = Config.DurationExtractor.Extract(text, referenceTime);
if (ers.Count == 1)
{
var pr = Config.DurationParser.Parse(ers[0]);
var beforeStr = text.Substring(0, pr.Start ?? 0).Trim().ToLowerInvariant();
var afterStr = text.Substring((pr.Start ?? 0) + (pr.Length ?? 0)).Trim().ToLowerInvariant();
var numbersInSuffix = Config.CardinalExtractor.Extract(beforeStr);
var numbersInDuration = Config.CardinalExtractor.Extract(ers[0].Text);
// Handle cases like "2 upcoming days", "5 previous years"
if (numbersInSuffix.Any() && !numbersInDuration.Any())
{
var numberEr = numbersInSuffix.First();
var numberText = numberEr.Text;
var durationText = ers[0].Text;
var combinedText = $"{numberText} {durationText}";
var combinedDurationEr = Config.DurationExtractor.Extract(combinedText, referenceTime);
if (combinedDurationEr.Any())
{
pr = Config.DurationParser.Parse(combinedDurationEr.First());
var startIndex = numberEr.Start.Value + numberEr.Length.Value;
beforeStr = beforeStr.Substring(startIndex).Trim();
}
}
if (pr.Value != null)
{
var swiftSeconds = 0;
var mod = string.Empty;
var durationResult = (DateTimeResolutionResult)pr.Value;
if (durationResult.PastValue is double && durationResult.FutureValue is double)
{
swiftSeconds = (int)((double)durationResult.FutureValue);
}
DateObject beginTime;
var endTime = beginTime = referenceTime;
if (Config.PreviousPrefixRegex.IsExactMatch(beforeStr, trim: true))
{
mod = Constants.BEFORE_MOD;
beginTime = referenceTime.AddSeconds(-swiftSeconds);
}
// Handle the "within (the) (next) xx seconds/minutes/hours" case
// Should also handle the multiple duration case like P1DT8H
// Set the beginTime equal to reference time for now
if (Config.WithinNextPrefixRegex.IsExactMatch(beforeStr, trim: true))
{
endTime = beginTime.AddSeconds(swiftSeconds);
}
if (Config.FutureRegex.IsExactMatch(beforeStr, trim: true))
{
mod = Constants.AFTER_MOD;
endTime = beginTime.AddSeconds(swiftSeconds);
}
if (Config.PreviousPrefixRegex.IsExactMatch(afterStr, trim: true))
{
mod = Constants.BEFORE_MOD;
beginTime = referenceTime.AddSeconds(-swiftSeconds);
}
if (Config.FutureRegex.IsExactMatch(afterStr, trim: true))
{
mod = Constants.AFTER_MOD;
endTime = beginTime.AddSeconds(swiftSeconds);
}
if (Config.FutureSuffixRegex.IsExactMatch(afterStr, trim: true))
{
mod = Constants.AFTER_MOD;
endTime = beginTime.AddSeconds(swiftSeconds);
}
ret.Timex =
$"({DateTimeFormatUtil.LuisDate(beginTime)}T{DateTimeFormatUtil.LuisTime(beginTime)}," +
$"{DateTimeFormatUtil.LuisDate(endTime)}T{DateTimeFormatUtil.LuisTime(endTime)}," +
$"{durationResult.Timex})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginTime, endTime);
ret.Success = true;
if (!string.IsNullOrEmpty(mod))
{
((DateTimeResolutionResult)pr.Value).Mod = mod;
}
ret.SubDateTimeEntities = new List <object> {
pr
};
return(ret);
}
}
return(ret);
}
private static DateTimeResolutionResult GetResolution(ExtractResult er, DateTimeParseResult pr, DateTimeResolutionResult ret)
{
var parentText = (string)((Dictionary <string, object>)er.Data)[ExtendedModelResult.ParentTextKey];
var type = pr.Type;
var singlePointResolution = "";
var pastStartPointResolution = "";
var pastEndPointResolution = "";
var futureStartPointResolution = "";
var futureEndPointResolution = "";
var singlePointType = "";
var startPointType = "";
var endPointType = "";
if (type == Constants.SYS_DATETIME_DATEPERIOD || type == Constants.SYS_DATETIME_TIMEPERIOD ||
type == Constants.SYS_DATETIME_DATETIMEPERIOD)
{
switch (type)
{
case Constants.SYS_DATETIME_DATEPERIOD:
startPointType = TimeTypeConstants.START_DATE;
endPointType = TimeTypeConstants.END_DATE;
pastStartPointResolution = FormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.PastValue).Item1);
pastEndPointResolution = FormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.PastValue).Item2);
futureStartPointResolution = FormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.FutureValue).Item1);
futureEndPointResolution = FormatUtil.FormatDate(((Tuple <DateObject, DateObject>)ret.FutureValue).Item2);
break;
case Constants.SYS_DATETIME_DATETIMEPERIOD:
startPointType = TimeTypeConstants.START_DATETIME;
endPointType = TimeTypeConstants.END_DATETIME;
if (ret.PastValue is Tuple <DateObject, DateObject> tuple)
{
pastStartPointResolution = FormatUtil.FormatDateTime(tuple.Item1);
pastEndPointResolution = FormatUtil.FormatDateTime(tuple.Item2);
futureStartPointResolution =
FormatUtil.FormatDateTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item1);
futureEndPointResolution =
FormatUtil.FormatDateTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item2);
}
else if (ret.PastValue is DateObject datetime)
{
pastStartPointResolution = FormatUtil.FormatDateTime(datetime);
futureStartPointResolution = FormatUtil.FormatDateTime((DateObject)ret.FutureValue);
}
break;
case Constants.SYS_DATETIME_TIMEPERIOD:
startPointType = TimeTypeConstants.START_TIME;
endPointType = TimeTypeConstants.END_TIME;
pastStartPointResolution = FormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.PastValue).Item1);
pastEndPointResolution = FormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.PastValue).Item2);
futureStartPointResolution = FormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item1);
futureEndPointResolution = FormatUtil.FormatTime(((Tuple <DateObject, DateObject>)ret.FutureValue).Item2);
break;
}
}
else
{
switch (type)
{
case Constants.SYS_DATETIME_DATE:
singlePointType = TimeTypeConstants.DATE;
singlePointResolution = FormatUtil.FormatDate((DateObject)ret.FutureValue);
break;
case Constants.SYS_DATETIME_DATETIME:
singlePointType = TimeTypeConstants.DATETIME;
singlePointResolution = FormatUtil.FormatDateTime((DateObject)ret.FutureValue);
break;
case Constants.SYS_DATETIME_TIME:
singlePointType = TimeTypeConstants.TIME;
singlePointResolution = FormatUtil.FormatTime((DateObject)ret.FutureValue);
break;
}
}
ret.FutureResolution = new Dictionary <string, string>();
ret.PastResolution = new Dictionary <string, string>();
if (!string.IsNullOrEmpty(futureStartPointResolution))
{
ret.FutureResolution.Add(startPointType, futureStartPointResolution);
}
if (!string.IsNullOrEmpty(futureEndPointResolution))
{
ret.FutureResolution.Add(endPointType, futureEndPointResolution);
}
if (!string.IsNullOrEmpty(pastStartPointResolution))
{
ret.PastResolution.Add(startPointType, pastStartPointResolution);
}
if (!string.IsNullOrEmpty(pastEndPointResolution))
{
ret.PastResolution.Add(endPointType, pastEndPointResolution);
}
if (!string.IsNullOrEmpty(singlePointResolution))
{
ret.FutureResolution.Add(singlePointType, singlePointResolution);
ret.PastResolution.Add(singlePointType, singlePointResolution);
}
if (!string.IsNullOrEmpty(parentText))
{
ret.FutureResolution.Add(ExtendedModelResult.ParentTextKey, parentText);
ret.PastResolution.Add(ExtendedModelResult.ParentTextKey, parentText);
}
if (((DateTimeResolutionResult)pr.Value).Mod != null)
{
ret.Mod = ((DateTimeResolutionResult)pr.Value).Mod;
}
if (((DateTimeResolutionResult)pr.Value).TimeZoneResolution != null)
{
ret.TimeZoneResolution = ((DateTimeResolutionResult)pr.Value).TimeZoneResolution;
}
return(ret);
}
// parse "morning", "afternoon", "night"
private DateTimeResolutionResult ParseNight(string text, DateObject referenceTime)
{
int day = referenceTime.Day,
month = referenceTime.Month,
year = referenceTime.Year;
var ret = new DateTimeResolutionResult();
// extract early/late prefix from text
var match = this.config.TimeOfDayRegex.Match(text);
bool hasEarly = false, hasLate = false;
if (match.Success)
{
if (!string.IsNullOrEmpty(match.Groups["early"].Value))
{
var early = match.Groups["early"].Value;
text = text.Replace(early, "");
hasEarly = true;
ret.Comment = Constants.Comment_Early;
}
if (!hasEarly && !string.IsNullOrEmpty(match.Groups["late"].Value))
{
var late = match.Groups["late"].Value;
text = text.Replace(late, "");
hasLate = true;
ret.Comment = Constants.Comment_Late;
}
}
if (!this.config.GetMatchedTimexRange(text, out string timex, out int beginHour, out int endHour, out int endMinSeg))
{
return(new DateTimeResolutionResult());
}
// modify time period if "early" or "late" is existed
if (hasEarly)
{
endHour = beginHour + 2;
// handling case: night end with 23:59
if (endMinSeg == 59)
{
endMinSeg = 0;
}
}
else if (hasLate)
{
beginHour = beginHour + 2;
}
ret.Timex = timex;
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(
DateObject.MinValue.SafeCreateFromValue(year, month, day, beginHour, 0, 0),
DateObject.MinValue.SafeCreateFromValue(year, month, day, endHour, endMinSeg, endMinSeg)
);
ret.Success = true;
return(ret);
}
// merge the entity with its related contexts and then parse the combine text
private DateTimeResolutionResult ParseDateTimeAndTimeAlt(ExtractResult er, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
// Original type of the extracted entity
var subType = ((Dictionary <string, object>)er.Data)[Constants.SubType].ToString();
var dateTimeEr = new ExtractResult();
// e.g. {next week Mon} or {Tue}, formmer--"next week Mon" doesn't contain "context" key
var hasContext = false;
ExtractResult contextEr = null;
if (((Dictionary <string, object>)er.Data).ContainsKey(Constants.Context))
{
contextEr = (ExtractResult)((Dictionary <string, object>)er.Data)[Constants.Context];
if (contextEr.Type.Equals(Constants.ContextType_RelativeSuffix))
{
dateTimeEr.Text = $"{er.Text} {contextEr.Text}";
}
else
{
dateTimeEr.Text = $"{contextEr.Text} {er.Text}";
}
hasContext = true;
}
else
{
dateTimeEr.Text = er.Text;
}
var dateTimePr = new DateTimeParseResult();
if (subType == Constants.SYS_DATETIME_DATE)
{
dateTimeEr.Type = Constants.SYS_DATETIME_DATE;
dateTimePr = this.config.DateParser.Parse(dateTimeEr, referenceTime);
}
else if (subType == Constants.SYS_DATETIME_TIME)
{
if (!hasContext)
{
dateTimeEr.Type = Constants.SYS_DATETIME_TIME;
dateTimePr = this.config.TimeParser.Parse(dateTimeEr, referenceTime);
}
else if (contextEr.Type == Constants.SYS_DATETIME_DATE || contextEr.Type == Constants.ContextType_RelativePrefix)
{
// For cases:
// Monday 9 am or 11 am
// next 9 am or 11 am
dateTimeEr.Type = Constants.SYS_DATETIME_DATETIME;
dateTimePr = this.config.DateTimeParser.Parse(dateTimeEr, referenceTime);
}
else if (contextEr.Type == Constants.ContextType_AmPm)
{
// For cases: in the afternoon 3 o'clock or 5 o'clock
dateTimeEr.Type = Constants.SYS_DATETIME_TIME;
dateTimePr = this.config.TimeParser.Parse(dateTimeEr, referenceTime);
}
}
else if (subType == Constants.SYS_DATETIME_DATETIME)
{
// "next week Mon 9 am or Tue 1 pm"
dateTimeEr.Type = Constants.SYS_DATETIME_DATETIME;
dateTimePr = this.config.DateTimeParser.Parse(dateTimeEr, referenceTime);
}
else if (subType == Constants.SYS_DATETIME_TIMEPERIOD)
{
if (!hasContext)
{
dateTimeEr.Type = Constants.SYS_DATETIME_TIMEPERIOD;
dateTimePr = this.config.TimePeriodParser.Parse(dateTimeEr, referenceTime);
}
else if (contextEr.Type == Constants.SYS_DATETIME_DATE || contextEr.Type == Constants.ContextType_RelativePrefix)
{
dateTimeEr.Type = Constants.SYS_DATETIME_DATETIMEPERIOD;
dateTimePr = this.config.DateTimePeriodParser.Parse(dateTimeEr, referenceTime);
}
}
else if (subType == Constants.SYS_DATETIME_DATETIMEPERIOD)
{
dateTimeEr.Type = Constants.SYS_DATETIME_DATETIMEPERIOD;
dateTimePr = this.config.DateTimePeriodParser.Parse(dateTimeEr, referenceTime);
}
else if (subType == Constants.SYS_DATETIME_DATEPERIOD)
{
dateTimeEr.Type = Constants.SYS_DATETIME_DATEPERIOD;
dateTimePr = this.config.DatePeriodParser.Parse(dateTimeEr, referenceTime);
}
if (dateTimePr.Value != null)
{
ret.FutureValue = ((DateTimeResolutionResult)dateTimePr.Value).FutureValue;
ret.PastValue = ((DateTimeResolutionResult)dateTimePr.Value).PastValue;
ret.Timex = dateTimePr.TimexStr;
// Create resolution
ret = GetResolution(er, dateTimePr, ret);
ret.Success = true;
}
return(ret);
}
// Match several other cases
// Including 'today', 'the day after tomorrow', 'on 13'
private DateTimeResolutionResult ParseImplicitDate(string text, DateObject referenceDate)
{
var trimmedText = text.Trim();
var ret = new DateTimeResolutionResult();
// Handle "on 12"
var match = this.config.OnRegex.Match(this.config.DateTokenPrefix + trimmedText);
if (match.Success && match.Index == 3 && match.Length == trimmedText.Length)
{
int month = referenceDate.Month, year = referenceDate.Year;
var dayStr = match.Groups["day"].Value;
var day = this.config.DayOfMonth[dayStr];
ret.Timex = DateTimeFormatUtil.LuisDate(-1, -1, day);
DateObject futureDate, pastDate;
var tryStr = DateTimeFormatUtil.LuisDate(year, month, day);
if (DateObject.TryParse(tryStr, out DateObject _))
{
futureDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
pastDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
if (futureDate < referenceDate)
{
futureDate = futureDate.AddMonths(+1);
}
if (pastDate >= referenceDate)
{
pastDate = pastDate.AddMonths(-1);
}
}
else
{
futureDate = DateObject.MinValue.SafeCreateFromValue(year, month + 1, day);
pastDate = DateObject.MinValue.SafeCreateFromValue(year, month - 1, day);
}
ret.FutureValue = futureDate;
ret.PastValue = pastDate;
ret.Success = true;
return(ret);
}
// Handle "today", "the day before yesterday"
var exactMatch = this.config.SpecialDayRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var swift = GetSwiftDay(exactMatch.Value);
var value = referenceDate.Date.AddDays(swift);
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = value;
ret.Success = true;
return(ret);
}
// Handle "two days from tomorrow"
exactMatch = this.config.SpecialDayWithNumRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var swift = GetSwiftDay(exactMatch.Groups["day"].Value);
var numErs = this.config.IntegerExtractor.Extract(trimmedText);
var numOfDays = Convert.ToInt32((double)(this.config.NumberParser.Parse(numErs[0]).Value ?? 0));
var value = referenceDate.AddDays(numOfDays + swift);
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(value.Year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
// Handle "two sundays from now"
exactMatch = this.config.RelativeWeekDayRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var numErs = this.config.IntegerExtractor.Extract(trimmedText);
var num = Convert.ToInt32((double)(this.config.NumberParser.Parse(numErs[0]).Value ?? 0));
var weekdayStr = exactMatch.Groups["weekday"].Value;
var value = referenceDate;
// Check whether the determined day of this week has passed.
if (value.DayOfWeek > (DayOfWeek)this.config.DayOfWeek[weekdayStr])
{
num--;
}
while (num-- > 0)
{
value = value.Next((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
}
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(value.Year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
// Handle "next Sunday", "upcoming Sunday"
// We define "upcoming Sunday" as the nearest Sunday to come (not include today)
// We define "next Sunday" as Sunday of next week
exactMatch = this.config.NextRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var weekdayStr = exactMatch.Groups["weekday"].Value;
var value = referenceDate.Next((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
if (this.config.UpcomingPrefixRegex.MatchBegin(trimmedText, trim: true).Success)
{
value = referenceDate.Upcoming((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
}
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(value.Year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
// Handle "this Friday"
exactMatch = this.config.ThisRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var weekdayStr = exactMatch.Groups["weekday"].Value;
var value = referenceDate.This((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(value.Year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
// Handle "last Friday", "last mon"
// We define "past Sunday" as the nearest Sunday that has already passed (not include today)
// We define "previous Sunday" as Sunday of previous week
exactMatch = this.config.LastRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var weekdayStr = exactMatch.Groups["weekday"].Value;
var value = referenceDate.Last((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
if (this.config.PastPrefixRegex.MatchBegin(trimmedText, trim: true).Success)
{
value = referenceDate.Past((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
}
ret.Timex = DateTimeFormatUtil.LuisDate(value);
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(value.Year, value.Month, value.Day);
ret.Success = true;
return(ret);
}
// Handle "Friday"
exactMatch = this.config.WeekDayRegex.MatchExact(trimmedText, trim: true);
if (exactMatch.Success)
{
var weekdayStr = exactMatch.Groups["weekday"].Value;
var weekDay = this.config.DayOfWeek[weekdayStr];
var value = referenceDate.This((DayOfWeek)this.config.DayOfWeek[weekdayStr]);
if (weekDay == 0)
{
weekDay = 7;
}
if (weekDay < (int)referenceDate.DayOfWeek)
{
value = referenceDate.Next((DayOfWeek)weekDay);
}
ret.Timex = "XXXX-WXX-" + weekDay;
var futureDate = value;
var pastDate = value;
if (futureDate < referenceDate)
{
futureDate = futureDate.AddDays(7);
}
if (pastDate >= referenceDate)
{
pastDate = pastDate.AddDays(-7);
}
ret.FutureValue = DateObject.MinValue.SafeCreateFromValue(futureDate.Year, futureDate.Month, futureDate.Day);
ret.PastValue = DateObject.MinValue.SafeCreateFromValue(pastDate.Year, pastDate.Month, pastDate.Day);
ret.Success = true;
return(ret);
}
// Handle "for the 27th."
match = this.config.ForTheRegex.Match(text);
if (match.Success)
{
int day = 0, month = referenceDate.Month, year = referenceDate.Year;
var dayStr = match.Groups["DayOfMonth"].Value;
// Create a extract result which content ordinal string of text
ExtractResult er = new ExtractResult
{
Text = dayStr,
Start = match.Groups["DayOfMonth"].Index,
Length = match.Groups["DayOfMonth"].Length,
};
day = Convert.ToInt32((double)(this.config.NumberParser.Parse(er).Value ?? 0));
ret.Timex = DateTimeFormatUtil.LuisDate(-1, -1, day);
DateObject futureDate;
var tryStr = DateTimeFormatUtil.LuisDate(year, month, day);
if (DateObject.TryParse(tryStr, out DateObject _))
{
futureDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
}
else
{
futureDate = DateObject.MinValue.SafeCreateFromValue(year, month + 1, day);
}
ret.FutureValue = futureDate;
ret.PastValue = ret.FutureValue;
ret.Success = true;
return(ret);
}
// Handling cases like 'Thursday the 21st', which both 'Thursday' and '21st' refer to a same date
match = this.config.WeekDayAndDayOfMothRegex.Match(text);
if (match.Success)
{
int month = referenceDate.Month, year = referenceDate.Year;
// create a extract result which content ordinal string of text
ExtractResult extractResultTmp = new ExtractResult
{
Text = match.Groups["DayOfMonth"].Value,
Start = match.Groups["DayOfMonth"].Index,
Length = match.Groups["DayOfMonth"].Length,
};
// parse the day in text into number
var day = Convert.ToInt32((double)(this.config.NumberParser.Parse(extractResultTmp).Value ?? 0));
// The validity of the phrase is guaranteed in the Date Extractor
ret.Timex = DateTimeFormatUtil.LuisDate(year, month, day);
ret.FutureValue = new DateObject(year, month, day);
ret.PastValue = new DateObject(year, month, day);
ret.Success = true;
return(ret);
}
// Handling cases like 'Monday 21', which both 'Monday' and '21' refer to the same date.
// The year of expected date can be different to the year of referenceDate.
match = this.config.WeekDayAndDayRegex.Match(text);
if (match.Success)
{
int month = referenceDate.Month, year = referenceDate.Year;
// Create a extract result which content ordinal string of text
ExtractResult ertmp = new ExtractResult
{
Text = match.Groups["day"].Value,
Start = match.Groups["day"].Index,
Length = match.Groups["day"].Length,
};
// Parse the day in text into number
var day = Convert.ToInt32((double)(this.config.NumberParser.Parse(ertmp).Value ?? 0));
// Firstly, find a latest date with the "day" as pivotDate.
// Secondly, if the pivotDate equals the referenced date, in other word, the day of the referenced date is exactly the "day".
// In this way, check if the pivotDate is the weekday. If so, then the futureDate and the previousDate are the same date (referenced date).
// Otherwise, increase the pivotDate month by month to find the latest futureDate and decrease the pivotDate month
// by month to the latest previousDate.
// Notice: if the "day" is larger than 28, some months should be ignored in the increase or decrease procedure.
var pivotDate = new DateObject(year, month, 1);
var daysInMonth = DateObject.DaysInMonth(year, month);
if (daysInMonth >= day)
{
pivotDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
}
else
{
// Add 1 month is enough, since 1, 3, 5, 7, 8, 10, 12 months has 31 days
pivotDate = pivotDate.AddMonths(1);
pivotDate = DateObject.MinValue.SafeCreateFromValue(pivotDate.Year, pivotDate.Month, day);
}
var numWeekDayInt = (int)pivotDate.DayOfWeek;
var extractedWeekDayStr = match.Groups["weekday"].Value;
var weekDay = this.config.DayOfWeek[extractedWeekDayStr];
if (!pivotDate.Equals(DateObject.MinValue))
{
if (day == referenceDate.Day && numWeekDayInt == weekDay)
{
// The referenceDate is the weekday and with the "day".
ret.FutureValue = new DateObject(year, month, day);
ret.PastValue = new DateObject(year, month, day);
ret.Timex = DateTimeFormatUtil.LuisDate(year, month, day);
}
else
{
var futureDate = pivotDate;
var pastDate = pivotDate;
while ((int)futureDate.DayOfWeek != weekDay || futureDate.Day != day || futureDate < referenceDate)
{
// Increase the futureDate month by month to find the expected date (the "day" is the weekday) and
// make sure the futureDate not less than the referenceDate.
futureDate = futureDate.AddMonths(1);
var tmp = DateObject.DaysInMonth(futureDate.Year, futureDate.Month);
if (tmp >= day)
{
// For months like January 31, after add 1 month, February 31 won't be returned, so the day should be revised ASAP.
futureDate = futureDate.SafeCreateFromValue(futureDate.Year, futureDate.Month, day);
}
}
ret.FutureValue = futureDate;
while ((int)pastDate.DayOfWeek != weekDay || pastDate.Day != day || pastDate > referenceDate)
{
// Decrease the pastDate month by month to find the expected date (the "day" is the weekday) and
// make sure the pastDate not larger than the referenceDate.
pastDate = pastDate.AddMonths(-1);
var tmp = DateObject.DaysInMonth(pastDate.Year, pastDate.Month);
if (tmp >= day)
{
// For months like March 31, after minus 1 month, February 31 won't be returned, so the day should be revised ASAP.
pastDate = pastDate.SafeCreateFromValue(pastDate.Year, pastDate.Month, day);
}
}
ret.PastValue = pastDate;
if (weekDay == 0)
{
weekDay = 7;
}
ret.Timex = "XXXX-WXX-" + weekDay;
}
}
ret.Success = true;
return(ret);
}
return(ret);
}
private DateTimeResolutionResult Match2Time(Match match, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
bool hasMin = false, hasSec = false, hasAm = false, hasPm = false, hasMid = false;
int hour = 0,
min = 0,
second = 0,
day = referenceTime.Day,
month = referenceTime.Month,
year = referenceTime.Year;
var writtenTimeStr = match.Groups["writtentime"].Value;
if (!string.IsNullOrEmpty(writtenTimeStr))
{
// get hour
var hourStr = match.Groups["hournum"].Value.ToLower();
hour = this.config.Numbers[hourStr];
// get minute
var minStr = match.Groups["minnum"].Value;
var tensStr = match.Groups["tens"].Value;
if (!string.IsNullOrEmpty(minStr))
{
min = this.config.Numbers[minStr];
if (!string.IsNullOrEmpty(tensStr))
{
min += this.config.Numbers[tensStr];
}
hasMin = true;
}
}
else if (!string.IsNullOrEmpty(match.Groups["mid"].Value))
{
hasMid = true;
if (!string.IsNullOrEmpty(match.Groups["midnight"].Value))
{
hour = 0;
min = 0;
second = 0;
}
else if (!string.IsNullOrEmpty(match.Groups["midmorning"].Value))
{
hour = 10;
min = 0;
second = 0;
}
else if (!string.IsNullOrEmpty(match.Groups["midafternoon"].Value))
{
hour = 14;
min = 0;
second = 0;
}
else if (!string.IsNullOrEmpty(match.Groups["midday"].Value))
{
hour = Constants.HalfDayHourCount;
min = 0;
second = 0;
}
}
else
{
// get hour
var hourStr = match.Groups[Constants.HourGroupName].Value;
if (string.IsNullOrEmpty(hourStr))
{
hourStr = match.Groups["hournum"].Value.ToLower();
if (!this.config.Numbers.TryGetValue(hourStr, out hour))
{
return(ret);
}
}
else
{
if (!int.TryParse(hourStr, out hour))
{
if (!this.config.Numbers.TryGetValue(hourStr.ToLower(), out hour))
{
return(ret);
}
}
}
// get minute
var minStr = match.Groups[Constants.MinuteGroupName].Value.ToLower();
if (string.IsNullOrEmpty(minStr))
{
minStr = match.Groups["minnum"].Value;
if (!string.IsNullOrEmpty(minStr))
{
min = this.config.Numbers[minStr];
hasMin = true;
}
var tensStr = match.Groups["tens"].Value;
if (!string.IsNullOrEmpty(tensStr))
{
min += this.config.Numbers[tensStr];
hasMin = true;
}
}
else
{
min = int.Parse(minStr);
hasMin = true;
}
// get second
var secStr = match.Groups[Constants.SecondGroupName].Value.ToLower();
if (!string.IsNullOrEmpty(secStr))
{
second = int.Parse(secStr);
hasSec = true;
}
}
// Adjust by desc string
var descStr = match.Groups[Constants.DescGroupName].Value.ToLower();
// ampm is a special case in which at 6ampm = at 6
if (config.UtilityConfiguration.AmDescRegex.Match(descStr).Success ||
config.UtilityConfiguration.AmPmDescRegex.Match(descStr).Success ||
match.Groups[Constants.ImplicitAmGroupName].Success)
{
if (hour >= Constants.HalfDayHourCount)
{
hour -= Constants.HalfDayHourCount;
}
if (!config.UtilityConfiguration.AmPmDescRegex.Match(descStr).Success)
{
hasAm = true;
}
}
else if (config.UtilityConfiguration.PmDescRegex.Match(descStr).Success ||
match.Groups[Constants.ImplicitPmGroupName].Success)
{
if (hour < Constants.HalfDayHourCount)
{
hour += Constants.HalfDayHourCount;
}
hasPm = true;
}
// adjust min by prefix
var timePrefix = match.Groups[Constants.PrefixGroupName].Value.ToLower();
if (!string.IsNullOrEmpty(timePrefix))
{
this.config.AdjustByPrefix(timePrefix, ref hour, ref min, ref hasMin);
}
// adjust hour by suffix
var timeSuffix = match.Groups[Constants.SuffixGroupName].Value.ToLower();
if (!string.IsNullOrEmpty(timeSuffix))
{
this.config.AdjustBySuffix(timeSuffix, ref hour, ref min, ref hasMin, ref hasAm, ref hasPm);
}
if (hour == 24)
{
hour = 0;
}
ret.Timex = "T" + hour.ToString("D2");
if (hasMin)
{
ret.Timex += ":" + min.ToString("D2");
}
if (hasSec)
{
ret.Timex += ":" + second.ToString("D2");
}
if (hour <= Constants.HalfDayHourCount && !hasPm && !hasAm && !hasMid)
{
ret.Comment = Constants.Comment_AmPm;
}
ret.FutureValue = ret.PastValue = DateObject.MinValue.SafeCreateFromValue(year, month, day, hour, min, second);
ret.Success = true;
return(ret);
}
// Parse a regex match which includes 'day', 'month' and 'year' (optional) group
private DateTimeResolutionResult Match2Date(Match match, DateObject referenceDate, string relativeStr)
{
var ret = new DateTimeResolutionResult();
var monthStr = match.Groups["month"].Value;
var dayStr = match.Groups["day"].Value;
var yearStr = match.Groups["year"].Value;
var weekdayStr = match.Groups["weekday"].Value;
int month = 0, day = 0, year = 0;
if (this.config.MonthOfYear.ContainsKey(monthStr) && this.config.DayOfMonth.ContainsKey(dayStr))
{
month = this.config.MonthOfYear[monthStr];
day = this.config.DayOfMonth[dayStr];
if (!string.IsNullOrEmpty(yearStr))
{
year = int.Parse(yearStr);
if (year < 100 && year >= Constants.MinTwoDigitYearPastNum)
{
year += 1900;
}
else if (year >= 0 && year < Constants.MaxTwoDigitYearFutureNum)
{
year += 2000;
}
}
}
var noYear = false;
if (year == 0)
{
year = referenceDate.Year;
if (!string.IsNullOrEmpty(relativeStr))
{
var swift = this.config.GetSwiftMonthOrYear(relativeStr);
// @TODO Improve handling of next/last in particular cases "next friday 5/12" when the next friday is not 5/12.
if (!string.IsNullOrEmpty(weekdayStr))
{
swift = 0;
}
year += swift;
}
else
{
noYear = true;
}
ret.Timex = DateTimeFormatUtil.LuisDate(-1, month, day);
}
else
{
ret.Timex = DateTimeFormatUtil.LuisDate(year, month, day);
}
var futureDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
var pastDate = DateObject.MinValue.SafeCreateFromValue(year, month, day);
if (noYear && futureDate < referenceDate && !futureDate.IsDefaultValue())
{
futureDate = futureDate.AddYears(+1);
}
if (noYear && pastDate >= referenceDate && !pastDate.IsDefaultValue())
{
pastDate = pastDate.AddYears(-1);
}
ret.FutureValue = futureDate;
ret.PastValue = pastDate;
ret.Success = true;
return(ret);
}
// parse "in 20 minutes"
private DateTimeResolutionResult ParseNumberWithUnit(string text, DateObject referenceTime)
{
var ret = new DateTimeResolutionResult();
string unitStr;
// if there are spaces between number and unit
var ers = this.config.CardinalExtractor.Extract(text);
if (ers.Count == 1)
{
var pr = this.config.CardinalParser.Parse(ers[0]);
var srcUnit = text.Substring(ers[0].Start + ers[0].Length ?? 0).Trim();
if (srcUnit.StartsWith("个", StringComparison.Ordinal))
{
srcUnit = srcUnit.Substring(1);
}
var beforeStr = text.Substring(0, ers[0].Start ?? 0);
if (this.config.UnitMap.ContainsKey(srcUnit))
{
var numStr = pr.ResolutionStr;
unitStr = this.config.UnitMap[srcUnit];
var prefixMatch = this.config.PastRegex.MatchExact(beforeStr, trim: true);
if (prefixMatch.Success)
{
DateObject beginDate, endDate;
switch (unitStr)
{
case "H":
beginDate = referenceTime.AddHours(-(double)pr.Value);
endDate = referenceTime;
break;
case "M":
beginDate = referenceTime.AddMinutes(-(double)pr.Value);
endDate = referenceTime;
break;
case "S":
beginDate = referenceTime.AddSeconds(-(double)pr.Value);
endDate = referenceTime;
break;
default:
return(ret);
}
ret.Timex =
$"({DateTimeFormatUtil.LuisDate(beginDate)}T{DateTimeFormatUtil.LuisTime(beginDate)},{DateTimeFormatUtil.LuisDate(endDate)}T{DateTimeFormatUtil.LuisTime(endDate)},PT{numStr}{unitStr[0]})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginDate, endDate);
ret.Success = true;
return(ret);
}
prefixMatch = this.config.FutureRegex.MatchExact(beforeStr, trim: true);
if (prefixMatch.Success)
{
DateObject beginDate, endDate;
switch (unitStr)
{
case "H":
beginDate = referenceTime;
endDate = referenceTime.AddHours((double)pr.Value);
break;
case "M":
beginDate = referenceTime;
endDate = referenceTime.AddMinutes((double)pr.Value);
break;
case "S":
beginDate = referenceTime;
endDate = referenceTime.AddSeconds((double)pr.Value);
break;
default:
return(ret);
}
ret.Timex =
$"({DateTimeFormatUtil.LuisDate(beginDate)}T{DateTimeFormatUtil.LuisTime(beginDate)},{DateTimeFormatUtil.LuisDate(endDate)}T{DateTimeFormatUtil.LuisTime(endDate)},PT{numStr}{unitStr[0]})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginDate, endDate);
ret.Success = true;
return(ret);
}
}
}
// handle "last hour"
var match = this.config.UnitRegex.Match(text);
if (match.Success)
{
var srcUnit = match.Groups["unit"].Value;
var beforeStr = text.Substring(0, match.Index).Trim();
if (this.config.UnitMap.ContainsKey(srcUnit))
{
unitStr = this.config.UnitMap[srcUnit];
if (this.config.PastRegex.IsExactMatch(beforeStr, trim: true))
{
DateObject beginDate, endDate;
switch (unitStr)
{
case "H":
beginDate = referenceTime.AddHours(-1);
endDate = referenceTime;
break;
case "M":
beginDate = referenceTime.AddMinutes(-1);
endDate = referenceTime;
break;
case "S":
beginDate = referenceTime.AddSeconds(-1);
endDate = referenceTime;
break;
default:
return(ret);
}
ret.Timex =
$"({DateTimeFormatUtil.LuisDate(beginDate)}T{DateTimeFormatUtil.LuisTime(beginDate)},{DateTimeFormatUtil.LuisDate(endDate)}T{DateTimeFormatUtil.LuisTime(endDate)},PT1{unitStr[0]})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginDate, endDate);
ret.Success = true;
return(ret);
}
if (this.config.FutureRegex.IsExactMatch(beforeStr, trim: true))
{
DateObject beginDate, endDate;
switch (unitStr)
{
case "H":
beginDate = referenceTime;
endDate = referenceTime.AddHours(1);
break;
case "M":
beginDate = referenceTime;
endDate = referenceTime.AddMinutes(1);
break;
case "S":
beginDate = referenceTime;
endDate = referenceTime.AddSeconds(1);
break;
default:
return(ret);
}
ret.Timex =
$"({DateTimeFormatUtil.LuisDate(beginDate)}T{DateTimeFormatUtil.LuisTime(beginDate)},{DateTimeFormatUtil.LuisDate(endDate)}T{DateTimeFormatUtil.LuisTime(endDate)},PT1{unitStr[0]})";
ret.FutureValue = ret.PastValue = new Tuple <DateObject, DateObject>(beginDate, endDate);
ret.Success = true;
return(ret);
}
}
}
return(ret);
}