private DateTimeResolutionResult ParseEachUnit(string text)
{
var ret = new DateTimeResolutionResult();
// handle "daily", "weekly"
var match = this.config.PeriodicRegex.Match(text);
if (match.Success)
{
// @TODO refactor to pass match
if (!this.config.GetMatchedDailyTimex(text, out string timex))
{
return(ret);
}
ret = SetHandler.ResolveSet(ref ret, timex);
return(ret);
}
// handle "each month"
var exactMatch = this.config.EachUnitRegex.MatchExact(text, trim: true);
if (exactMatch.Success)
{
var sourceUnit = exactMatch.Groups["unit"].Value;
if (string.IsNullOrEmpty(sourceUnit))
{
sourceUnit = exactMatch.Groups["specialUnit"].Value;
}
if (!string.IsNullOrEmpty(sourceUnit) && this.config.UnitMap.ContainsKey(sourceUnit))
{
// @TODO refactor to pass match
if (!this.config.GetMatchedUnitTimex(sourceUnit, out string timex))
{
return(ret);
}
// "handle every other month"
if (exactMatch.Groups["other"].Success)
{
timex = timex.Replace("1", "2");
}
ret = SetHandler.ResolveSet(ref ret, timex);
}
}
return(ret);
}
private DateTimeResolutionResult ParseEach(IDateTimeExtractor extractor, IDateTimeParser parser, string text, DateObject refDate)
{
var ret = new DateTimeResolutionResult();
List <ExtractResult> ers = null;
var success = false;
// remove key words of set type from text
var match = config.SetEachRegex.Match(text);
if (match.Success)
{
var trimmedText = text.Remove(match.Index, match.Length);
ers = extractor.Extract(trimmedText, refDate);
if (ers.Count == 1 && ers.First().Length == trimmedText.Length)
{
success = true;
}
}
// remove suffix 's' and "on" if existed and re-try
match = this.config.SetWeekDayRegex.Match(text);
if (match.Success)
{
var trimmedText = text.Remove(match.Index, match.Length);
trimmedText = trimmedText.Insert(match.Index, config.WeekDayGroupMatchString(match));
ers = extractor.Extract(trimmedText, refDate);
if (ers.Count == 1 && ers.First().Length == trimmedText.Length)
{
success = true;
}
}
if (success)
{
var pr = parser.Parse(ers[0], refDate);
ret = SetHandler.ResolveSet(ref ret, pr.TimexStr);
}
return(ret);
}
private DateTimeResolutionResult ParseEachUnit(string text)
{
var ret = new DateTimeResolutionResult();
// handle "each month"
var match = this.config.EachUnitRegex.MatchExact(text, trim: true);
if (match.Success)
{
var sourceUnit = match.Groups["unit"].Value;
if (!string.IsNullOrEmpty(sourceUnit) && this.config.UnitMap.ContainsKey(sourceUnit))
{
if (this.config.GetMatchedUnitTimex(sourceUnit, out string timexStr))
{
ret = SetHandler.ResolveSet(ref ret, timexStr);
}
}
}
return(ret);
}
private DateTimeResolutionResult ParseEachDuration(string text, DateObject refDate)
{
var ret = new DateTimeResolutionResult();
var ers = this.config.DurationExtractor.Extract(text, refDate);
if (ers.Count != 1 || string.IsNullOrWhiteSpace(text.Substring(ers[0].Start + ers[0].Length ?? 0)))
{
return(ret);
}
var afterStr = text.Substring(ers[0].Start + ers[0].Length ?? 0);
if (this.config.EachPrefixRegex.IsMatch(afterStr))
{
var pr = this.config.DurationParser.Parse(ers[0], DateObject.Now);
ret = SetHandler.ResolveSet(ref ret, pr.TimexStr);
return(ret);
}
return(ret);
}
private DateTimeResolutionResult ParserTimeEveryday(string text, DateObject refDate)
{
var ret = new DateTimeResolutionResult();
var ers = this.config.TimeExtractor.Extract(text, refDate);
if (ers.Count != 1)
{
return(ret);
}
var afterStr = text.Replace(ers[0].Text, string.Empty);
var match = this.config.EachDayRegex.Match(afterStr);
if (match.Success)
{
var pr = this.config.TimeParser.Parse(ers[0], DateObject.Now);
ret = SetHandler.ResolveSet(ref ret, pr.TimexStr);
}
return(ret);
}
private DateTimeResolutionResult ParseEach(IDateTimeExtractor extractor, IDateTimeParser parser, string text, DateObject refDate)
{
var ret = new DateTimeResolutionResult();
var ers = extractor.Extract(text, refDate);
var success = false;
foreach (var er in ers)
{
var beforeStr = text.Substring(0, er.Start ?? 0);
var match = this.config.EachPrefixRegex.Match(beforeStr);
if (match.Success && match.Length + er.Length == text.Length)
{
success = true;
}
else if (er.Type == Constants.SYS_DATETIME_TIME || er.Type == Constants.SYS_DATETIME_DATE)
{
// Cases like "every day at 2pm" or "every year on April 15th"
var eachRegex = er.Type == Constants.SYS_DATETIME_TIME ? this.config.EachDayRegex : this.config.EachDateUnitRegex;
match = eachRegex.Match(beforeStr);
if (match.Success && match.Length + er.Length == text.Length)
{
success = true;
}
}
if (success)
{
var pr = parser.Parse(er, refDate);
ret = SetHandler.ResolveSet(ref ret, pr.TimexStr);
break;
}
}
return(ret);
}