internal static InputPhraseEvent[] GetPrefixPhrases(InputPhraseEvent phrase, int prefixLength, BeamNode node)
{
var result = new List <InputPhraseEvent>();
var currentNode = node;
//find node where prefix starts
while (currentNode != null && currentNode.Evt != phrase)
{
currentNode = currentNode.ParentNode;
}
while (currentNode != null)
{
if (currentNode.Evt is TurnStartEvent)
{
break;
}
if (currentNode.Evt is InputPhraseEvent prefixPhrase)
{
result.Add(prefixPhrase);
if (result.Count >= prefixLength)
{
break;
}
}
currentNode = currentNode.ParentNode;
}
result.Reverse();
return(result.ToArray());
}
internal virtual void Visit(InputPhraseEvent evt)
{
// input phrase can create a new instance or point to some old instance
tryActivateNewInstances();
tryActivateProperties();
// input can be unrecognized
PushSelf();
}
private bool isDelimiter(InputPhraseEvent inputPhrase)
{
var phrase = inputPhrase.Phrase;
return(new[] { "a", "an", "is", "does", "much", "can", "will", "in", "from", "out", "of", "i", "am", "iam", "i'am", "where", "what", "mean" }.Contains(phrase));
}
internal static InputPhraseEvent[] GetSufixPhrases(InputPhraseEvent phrase, int ngramLimitCount, BeamNode node)
{
throw new NotImplementedException();
}
internal bool IsInputUsed(InputPhraseEvent input)
{
return(GetAllEvents <InstanceActivationRequestEvent>(getCurrentNode()).Where(r => r.ActivationPhrases.Contains(input)).Any());
}
