protected override ParsedResult Extract(string originalText, DateTime?reference, Match match, Option opt)
{
return(null);
}
protected override ParsedResult Extract(string originalText, DateTime?reference, Match match, Option opt)
{
if (match.Index > 0 && new Regex(@"/\w/").Match(originalText[match.Index - 1].ToString()).Success)
{
return(null);
}
var text = match.Groups[0].Value;
text = text.Substring(match.Groups[1].Length, match.Groups[0].Length - match.Groups[1].Length);
int index = match.Index + match.Groups[1].Length;
var result = new ParsedResult(new TemporalResult
{
Text = text,
Index = index,
Reference = reference
});
var fragments = Util.ExtractDateTimeUnitFragments(match.Groups[2].Value);
var date = new DateTime(reference.Value.Year, reference.Value.Month, reference.Value.Day);
foreach (var kvp in fragments)
{
switch (kvp.Key)
{
case TEMPORAL_COMPONENT.Year:
date = date.AddYears(-kvp.Value);
break;
case TEMPORAL_COMPONENT.Month:
date = date.AddMonths(-kvp.Value);
break;
case TEMPORAL_COMPONENT.Day:
date = date.AddDays(-kvp.Value);
break;
case TEMPORAL_COMPONENT.Hour:
date = date.AddHours(-kvp.Value);
break;
case TEMPORAL_COMPONENT.Minute:
date = date.AddMinutes(-kvp.Value);
break;
case TEMPORAL_COMPONENT.Second:
date = date.AddSeconds(-kvp.Value);
break;
case TEMPORAL_COMPONENT.Week:
date = date.AddDays(-kvp.Value * 7);
break;
default:
break;
}
}
if ((fragments.ContainsKey(TEMPORAL_COMPONENT.Hour) && fragments[TEMPORAL_COMPONENT.Hour] > 0) ||
(fragments.ContainsKey(TEMPORAL_COMPONENT.Minute) && fragments[TEMPORAL_COMPONENT.Minute] > 0) ||
(fragments.ContainsKey(TEMPORAL_COMPONENT.Second) && fragments[TEMPORAL_COMPONENT.Second] > 0))
{
result.Start.Assign("hour", date.Hour);
result.Start.Assign("minute", date.Minute);
result.Start.Assign("second", date.Second);
result.Tags["ENTimeAgoFormatParser"] = true;
}
if ((fragments.ContainsKey(TEMPORAL_COMPONENT.Day) && fragments[TEMPORAL_COMPONENT.Day] > 0) ||
(fragments.ContainsKey(TEMPORAL_COMPONENT.Month) && fragments[TEMPORAL_COMPONENT.Month] > 0) ||
(fragments.ContainsKey(TEMPORAL_COMPONENT.Year) && fragments[TEMPORAL_COMPONENT.Year] > 0))
{
result.Start.Assign("day", date.Day);
result.Start.Assign("month", date.Month);
result.Start.Assign("year", date.Year);
}
else
{
if (fragments.ContainsKey(TEMPORAL_COMPONENT.Week) && fragments[TEMPORAL_COMPONENT.Week] > 0)
{
result.Start.Imply("weekday", date.Day);
}
result.Start.Imply("day", date.Day);
result.Start.Imply("month", date.Month);
result.Start.Imply("year", date.Year);
}
return(result);
}
