/// <summary>
/// Attempts to match tokens to the name of a known monadic concept (CommonNoun or Adjective)
/// </summary>
/// <returns>The concept, if successful, or null</returns>
public static TReferent MatchTrie <TReferent>(TokenTrie <TReferent> trie)
where TReferent : Referent
{
var old = State;
var concept = trie.Lookup(Input, ref Current.CurrentTokenIndex);
if (concept != null)
{
return(concept);
}
ResetTo(old);
return(null);
}
/// <summary> /// Search trie for a monadic concept named by some substring of tokens starting at the specified index. /// Updates index as it searches /// </summary> /// <param name="tokens">Sequence of tokens to search</param> /// <param name="index">Position within token sequence</param> /// <returns>Concept, if found, otherwise null.</returns> public static MonadicConcept Lookup(IList <string> tokens, ref int index) => Trie.Lookup(tokens, ref index);