public List <ExtractResult> Extract(string text, DateObject reference)
{
var ret = new List <ExtractResult>();
var originText = text;
List <MatchResult <string> > superfluousWordMatches = null;
if ((this.config.Options & DateTimeOptions.EnablePreview) != 0)
{
text = MatchingUtil.PreProcessTextRemoveSuperfluousWords(text, this.config.SuperfluousWordMatcher, out superfluousWordMatches);
}
// The order is important, since there can be conflicts in merging
AddTo(ret, this.config.DateExtractor.Extract(text, reference), text);
AddTo(ret, this.config.TimeExtractor.Extract(text, reference), text);
AddTo(ret, this.config.DatePeriodExtractor.Extract(text, reference), text);
AddTo(ret, this.config.DurationExtractor.Extract(text, reference), text);
AddTo(ret, this.config.TimePeriodExtractor.Extract(text, reference), text);
AddTo(ret, this.config.DateTimePeriodExtractor.Extract(text, reference), text);
AddTo(ret, this.config.DateTimeExtractor.Extract(text, reference), text);
AddTo(ret, this.config.SetExtractor.Extract(text, reference), text);
AddTo(ret, this.config.HolidayExtractor.Extract(text, reference), text);
if ((this.config.Options & DateTimeOptions.EnablePreview) != 0)
{
AddTo(ret, this.config.TimeZoneExtractor.Extract(text, reference), text);
ret = this.config.TimeZoneExtractor.RemoveAmbiguousTimezone(ret);
}
// This should be at the end since if need the extractor to determine the previous text contains time or not
AddTo(ret, NumberEndingRegexMatch(text, ret), text);
// Modify time entity to an alternative DateTime expression if it follows a DateTime entity
if ((this.config.Options & DateTimeOptions.ExtendedTypes) != 0)
{
ret = this.config.DateTimeAltExtractor.Extract(ret, text, reference);
}
ret = FilterUnspecificDatePeriod(ret);
ret = FilterAmbiguity(ret, text);
ret = AddMod(ret, text);
// Filtering
if ((this.config.Options & DateTimeOptions.CalendarMode) != 0)
{
ret = CheckCalendarFilterList(ret, text);
}
ret = ret.OrderBy(p => p.Start).ToList();
if ((this.config.Options & DateTimeOptions.EnablePreview) != 0)
{
ret = MatchingUtil.PosProcessExtractionRecoverSuperfluousWords(ret, superfluousWordMatches, originText);
}
return(ret);
}
