public DateTimeParseResult Parse(ExtractResult er, DateObject refTime)
{
var referenceTime = refTime;
DateTimeParseResult pr = null;
var originText = er.Text;
if ((this.Config.Options & DateTimeOptions.EnablePreview) != 0)
{
er.Text = MatchingUtil.PreProcessTextRemoveSuperfluousWords(er.Text, Config.SuperfluousWordMatcher, out var _);
er.Length += er.Text.Length - originText.Length;
}
bool hasBefore = false, hasAfter = false, hasSince = false, hasAround = false, hasEqual = false, hasDateAfter = false;
// "InclusiveModifier" means MOD should include the start/end time
// For example, cases like "on or later than", "earlier than or in" have inclusive modifier
var hasInclusiveModifier = false;
var matchIsAfter = false;
var modStr = string.Empty;
// Analyze and process modifiers
// Push, save the MOD string
if (er.Metadata != null && er.Metadata.HasMod)
{
var beforeMatch = Config.BeforeRegex.MatchBegin(er.Text, trim: true);
var afterMatch = Config.AfterRegex.MatchBegin(er.Text, trim: true);
var sinceMatch = Config.SinceRegex.MatchBegin(er.Text, trim: true);
var preLength = 0;
if (beforeMatch.Success)
{
preLength = beforeMatch.Index + beforeMatch.Length;
}
else if (afterMatch.Success)
{
preLength = afterMatch.Index + afterMatch.Length;
}
else if (sinceMatch.Success)
{
preLength = sinceMatch.Index + sinceMatch.Length;
}
var aroundText = er.Text.Substring(preLength);
var aroundMatch = Config.AroundRegex.MatchBegin(aroundText, trim: true);
var equalMatch = Config.EqualRegex.MatchBegin(er.Text, trim: true);
// check also after match
if (this.Config.CheckBothBeforeAfter && er.Data != null && er.Data.Equals(Constants.HAS_MOD))
{
if (!beforeMatch.Success)
{
beforeMatch = Config.BeforeRegex.MatchEnd(er.Text, trim: true);
matchIsAfter = matchIsAfter || beforeMatch.Success;
}
if (!afterMatch.Success)
{
afterMatch = Config.AfterRegex.MatchEnd(er.Text, trim: true);
matchIsAfter = matchIsAfter || afterMatch.Success;
}
if (!sinceMatch.Success)
{
sinceMatch = Config.SinceRegex.MatchEnd(er.Text, trim: true);
matchIsAfter = matchIsAfter || sinceMatch.Success;
}
if (!aroundMatch.Success)
{
aroundMatch = Config.AroundRegex.MatchEnd(er.Text, trim: true);
matchIsAfter = matchIsAfter || aroundMatch.Success;
}
if (!equalMatch.Success)
{
equalMatch = Config.EqualRegex.MatchEnd(er.Text, trim: true);
matchIsAfter = matchIsAfter || equalMatch.Success;
}
}
if (aroundMatch.Success)
{
hasAround = true;
er.Start += matchIsAfter ? 0 : preLength + aroundMatch.Index + aroundMatch.Length;
er.Length -= matchIsAfter ? aroundMatch.Length : preLength + aroundMatch.Index + aroundMatch.Length;
er.Text = matchIsAfter ? er.Text.Substring(0, (int)er.Length) : er.Text.Substring(preLength + aroundMatch.Index + aroundMatch.Length);
modStr = matchIsAfter ? aroundMatch.Value : aroundText.Substring(0, aroundMatch.Index + aroundMatch.Length);
}
if (beforeMatch.Success)
{
hasBefore = true;
if (!hasAround)
{
er.Start += matchIsAfter ? 0 : beforeMatch.Length;
er.Length -= beforeMatch.Length;
er.Text = matchIsAfter ? er.Text.Substring(0, (int)er.Length) : er.Text.Substring(beforeMatch.Length);
}
modStr = beforeMatch.Value + modStr;
if (!string.IsNullOrEmpty(beforeMatch.Groups[Constants.IncludeGroupName].Value))
{
hasInclusiveModifier = true;
}
}
else if (afterMatch.Success)
{
hasAfter = true;
if (!hasAround)
{
er.Start += matchIsAfter ? 0 : afterMatch.Length;
er.Length -= afterMatch.Length;
er.Text = matchIsAfter ? er.Text.Substring(0, (int)er.Length) : er.Text.Substring(afterMatch.Length);
}
modStr = afterMatch.Value + modStr;
if (!string.IsNullOrEmpty(afterMatch.Groups[Constants.IncludeGroupName].Value))
{
hasInclusiveModifier = true;
}
}
else if (sinceMatch.Success)
{
hasSince = true;
if (!hasAround)
{
er.Start += matchIsAfter ? 0 : sinceMatch.Length;
er.Length -= sinceMatch.Length;
er.Text = matchIsAfter ? er.Text.Substring(0, (int)er.Length) : er.Text.Substring(sinceMatch.Length);
}
modStr = sinceMatch.Value + modStr;
}
else if (equalMatch.Success)
{
hasEqual = true;
er.Start += matchIsAfter ? 0 : equalMatch.Length;
er.Length -= equalMatch.Length;
er.Text = matchIsAfter ? er.Text.Substring(0, (int)er.Length) : er.Text.Substring(equalMatch.Length);
modStr = equalMatch.Value;
}
else if ((er.Type.Equals(Constants.SYS_DATETIME_DATEPERIOD, StringComparison.Ordinal) && Config.YearRegex.Match(er.Text).Success) ||
er.Type.Equals(Constants.SYS_DATETIME_DATE, StringComparison.Ordinal) ||
er.Type.Equals(Constants.SYS_DATETIME_TIME, StringComparison.Ordinal))
{
// This has to be put at the end of the if, or cases like "before 2012" and "after 2012" would fall into this
// 2012 or after/above
// 3 pm or later
var match = Config.SuffixAfter.MatchEnd(er.Text, trim: true);
if (match.Success)
{
hasDateAfter = true;
er.Length -= match.Length;
er.Text = er.Text.Substring(0, er.Length ?? 0);
modStr = match.Value;
}
}
}
// Parse extracted datetime mention
pr = ParseResult(er, referenceTime);
if (pr == null)
{
return(null);
}
// Apply processed modifiers
// Pop, restore the MOD string
if (hasBefore && pr.Value != null)
{
pr.Length += modStr.Length;
pr.Start -= matchIsAfter ? 0 : modStr.Length;
pr.Text = matchIsAfter ? pr.Text + modStr : modStr + pr.Text;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, !hasInclusiveModifier ? Constants.BEFORE_MOD : Constants.UNTIL_MOD);
if (hasAround)
{
val.Mod = MergedParserUtil.CombineMod(Constants.APPROX_MOD, val.Mod);
hasAround = false;
}
pr.Value = val;
}
if (hasAfter && pr.Value != null)
{
pr.Length += modStr.Length;
pr.Start -= matchIsAfter ? 0 : modStr.Length;
pr.Text = matchIsAfter ? pr.Text + modStr : modStr + pr.Text;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, !hasInclusiveModifier ? Constants.AFTER_MOD : Constants.SINCE_MOD);
if (hasAround)
{
val.Mod = MergedParserUtil.CombineMod(Constants.APPROX_MOD, val.Mod);
hasAround = false;
}
pr.Value = val;
}
if (hasSince && pr.Value != null)
{
pr.Length += modStr.Length;
pr.Start -= matchIsAfter ? 0 : modStr.Length;
pr.Text = matchIsAfter ? pr.Text + modStr : modStr + pr.Text;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, Constants.SINCE_MOD);
if (hasAround)
{
val.Mod = MergedParserUtil.CombineMod(Constants.APPROX_MOD, val.Mod);
hasAround = false;
}
pr.Value = val;
}
if (hasAround && pr.Value != null)
{
pr.Length += modStr.Length;
pr.Start -= matchIsAfter ? 0 : modStr.Length;
pr.Text = matchIsAfter ? pr.Text + modStr : modStr + pr.Text;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, Constants.APPROX_MOD);
pr.Value = val;
}
if (hasEqual && pr.Value != null)
{
pr.Length += modStr.Length;
pr.Start -= matchIsAfter ? 0 : modStr.Length;
pr.Text = matchIsAfter ? pr.Text + modStr : modStr + pr.Text;
}
if (hasDateAfter && pr.Value != null)
{
pr.Length += modStr.Length;
pr.Text += modStr;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, Constants.SINCE_MOD);
pr.Value = val;
hasSince = true;
}
// For cases like "3 pm or later on monday"
if (pr.Value != null && Config.SuffixAfter.Match(pr.Text)?.Index != 0 &&
pr.Type.Equals(Constants.SYS_DATETIME_DATETIME, StringComparison.Ordinal) && !this.Config.CheckBothBeforeAfter)
{
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, Constants.SINCE_MOD);
pr.Value = val;
hasSince = true;
}
if ((Config.Options & DateTimeOptions.SplitDateAndTime) != 0 &&
((DateTimeResolutionResult)pr?.Value)?.SubDateTimeEntities != null)
{
pr.Value = MergedParserUtil.DateTimeResolutionForSplit(pr, this.Config);
}
else
{
var hasRangeChangingMod = hasBefore || hasAfter || hasSince;
if (pr.Value != null)
{
((DateTimeResolutionResult)pr.Value).HasRangeChangingMod = hasRangeChangingMod;
}
pr = MergedParserUtil.SetParseResult(pr, hasRangeChangingMod, this.Config);
}
// In this version, ExperimentalMode only cope with the "IncludePeriodEnd" case
if ((this.Config.Options & DateTimeOptions.ExperimentalMode) != 0)
{
if (pr?.Metadata != null && pr.Metadata.PossiblyIncludePeriodEnd)
{
pr = MergedParserUtil.SetInclusivePeriodEnd(pr);
}
}
if ((this.Config.Options & DateTimeOptions.EnablePreview) != 0)
{
if (pr != null)
{
pr.Length += originText.Length - pr.Text.Length;
pr.Text = originText;
}
}
return(pr);
}
public DateTimeParseResult Parse(ExtractResult er, DateObject refTime)
{
var referenceTime = refTime;
DateTimeParseResult pr;
// push, save teh MOD string
var hasInclusiveModifier = false;
bool hasBefore = false, hasAfter = false, hasUntil = false, hasSince = false, hasEqual = false;
string modStr = string.Empty, modStrPrefix = string.Empty, modStrSuffix = string.Empty;
if (er.Metadata != null)
{
var beforeMatch = config.BeforeRegex.MatchEnd(er.Text, trim: true);
var afterMatch = config.AfterRegex.MatchEnd(er.Text, trim: true);
var untilMatch = config.UntilRegex.MatchBegin(er.Text, trim: true);
var sinceMatchPrefix = config.SincePrefixRegex.MatchBegin(er.Text, trim: true);
var sinceMatchSuffix = config.SinceSuffixRegex.MatchEnd(er.Text, trim: true);
var equalMatch = config.EqualRegex.MatchBegin(er.Text, trim: true);
if (beforeMatch.Success && !MergedParserUtil.IsDurationWithAgoAndLater(er))
{
hasBefore = true;
er.Length -= beforeMatch.Length;
er.Text = er.Text.Substring(0, er.Length ?? 0);
modStr = beforeMatch.Value;
if (!string.IsNullOrEmpty(beforeMatch.Groups[Constants.IncludeGroupName].Value))
{
hasInclusiveModifier = true;
}
}
else if (afterMatch.Success && !MergedParserUtil.IsDurationWithAgoAndLater(er))
{
hasAfter = true;
er.Length -= afterMatch.Length;
er.Text = er.Text.Substring(0, er.Length ?? 0);
modStr = afterMatch.Value;
if (!string.IsNullOrEmpty(afterMatch.Groups[Constants.IncludeGroupName].Value))
{
hasInclusiveModifier = true;
}
}
else if (untilMatch.Success)
{
hasUntil = true;
er.Start += untilMatch.Length;
er.Length -= untilMatch.Length;
er.Text = er.Text.Substring(untilMatch.Length);
modStr = untilMatch.Value;
}
else if (equalMatch.Success)
{
hasEqual = true;
er.Start += equalMatch.Length;
er.Length -= equalMatch.Length;
er.Text = er.Text.Substring(equalMatch.Length);
modStr = equalMatch.Value;
}
else
{
if (sinceMatchPrefix.Success)
{
hasSince = true;
er.Start += sinceMatchPrefix.Length;
er.Length -= sinceMatchPrefix.Length;
er.Text = er.Text.Substring(sinceMatchPrefix.Length);
modStrPrefix = sinceMatchPrefix.Value;
}
if (sinceMatchSuffix.Success)
{
hasSince = true;
er.Length -= sinceMatchSuffix.Length;
er.Text = er.Text.Substring(0, er.Length ?? 0);
modStrSuffix = sinceMatchSuffix.Value;
}
}
}
// Parse extracted datetime mention
pr = ParseResult(er, referenceTime);
if (pr == null)
{
return(null);
}
// pop, restore the MOD string
if (hasBefore)
{
pr.Length += modStr.Length;
pr.Text = pr.Text + modStr;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, !hasInclusiveModifier ? Constants.BEFORE_MOD : Constants.UNTIL_MOD);
pr.Value = val;
}
if (hasAfter)
{
pr.Length += modStr.Length;
pr.Text = pr.Text + modStr;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = MergedParserUtil.CombineMod(val.Mod, !hasInclusiveModifier ? Constants.AFTER_MOD : Constants.SINCE_MOD);
pr.Value = val;
}
if (hasUntil)
{
pr.Length += modStr.Length;
pr.Start -= modStr.Length;
pr.Text = modStr + pr.Text;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = Constants.BEFORE_MOD;
pr.Value = val;
hasBefore = true;
}
if (hasSince)
{
pr.Length += modStrPrefix.Length + modStrSuffix.Length;
pr.Start -= modStrPrefix.Length;
pr.Text = modStrPrefix + pr.Text + modStrSuffix;
var val = (DateTimeResolutionResult)pr.Value;
val.Mod = Constants.SINCE_MOD;
pr.Value = val;
}
if (hasEqual)
{
pr.Length += modStr.Length;
pr.Start -= modStr.Length;
pr.Text = modStr + pr.Text;
}
var hasRangeChangingMod = hasBefore || hasAfter || hasSince;
if (pr.Value != null)
{
((DateTimeResolutionResult)pr.Value).HasRangeChangingMod = hasRangeChangingMod;
}
pr = MergedParserUtil.SetParseResult(pr, hasRangeChangingMod, this.config);
return(pr);
}
