public override MatchResult Matches(MatchContext context, TokenEntity startToken, PatternMatcher nextPatterMatcher)
{
var tokenEntity = startToken;
var matchResult = new MatchResult(false, this, tokenEntity);
if (tokenEntity != null)
{
var entity = context.Entities.FirstOrDefault(le => le.Start == tokenEntity.Start && le.Type == EntityType);
if (entity != null)
{
// add the matched entity to the children of the currentEntity.
context.AddToCurrentEntity(entity);
matchResult.Matched = true;
matchResult.End = entity.End;
matchResult.NextToken = context.GetFirstTokenEntity(entity.End);
}
}
return(matchResult);
}
public override MatchResult Matches(MatchContext context, TokenEntity startToken, PatternMatcher nextPatternMatcher)
{
var tokenEntity = startToken;
if (tokenEntity != null)
{
if (nextPatternMatcher != null)
{
MatchResult nextPatternMatch = nextPatternMatcher?.Matches(context, tokenEntity, null);
if (nextPatternMatch.Matched && nextPatternMatch.NextToken != tokenEntity)
{
return(new MatchResult(false, this)
{
NextPatternMatch = nextPatternMatch
});
}
}
if (!context.IsTokenMatched(tokenEntity))
{
// if last child is a wildcard and it's end matches the last token's end
// then we will merge the wildcards together.
var previousToken = context.GetPrevTokenEntity(tokenEntity);
var wildcardEntity = context.CurrentEntity.Children.FirstOrDefault(wildcard => wildcard.Type == this.entityType && wildcard.End == previousToken.End);
if (wildcardEntity != null)
{
var newEntity = new LucyEntity()
{
Type = entityType,
Start = wildcardEntity.Start,
End = tokenEntity.End,
Score = ((float)tokenEntity.End - wildcardEntity.Start) / context.Text.Length / 2,
Text = context.Text.Substring(wildcardEntity.Start, tokenEntity.End - wildcardEntity.Start),
Resolution = context.Text.Substring(wildcardEntity.Start, tokenEntity.End - wildcardEntity.Start),
};
// remove old entity
context.CurrentEntity.Children.Remove(wildcardEntity);
// add new merged wildcard entity "joe" "smith" => "joe smith"
context.AddToCurrentEntity(newEntity);
}
else
{
var newEntity = new LucyEntity()
{
Type = entityType,
Start = tokenEntity.Start,
End = tokenEntity.End,
Score = ((float)tokenEntity.End - tokenEntity.Start) / context.Text.Length / 2,
Text = context.Text.Substring(tokenEntity.Start, tokenEntity.End - tokenEntity.Start),
Resolution = context.Text.Substring(tokenEntity.Start, tokenEntity.End - tokenEntity.Start)
};
context.AddToCurrentEntity(newEntity);
}
return(new MatchResult(true, this, context.GetNextTokenEntity(tokenEntity), tokenEntity.Start, tokenEntity.End));
}
}
return(new MatchResult(false, this));
}