internal IEnumerable <SemanticItem> Match(SemanticItem pattern, SemanticItem input)
{
pattern = pattern.WithConstraints(pattern.Constraints.AddConditions(input.Constraints.Conditions));
var matchFactory = getMatchFactory(pattern);
if (matchFactory == null)
{
return(new SemanticItem[0]);
}
var result = matchFactory.Generate(input).ToArray();
return(result);
}
private SemanticItem generateCurrentState(string[] inputTokens, Constraints inputConstraints)
{
var isValid = _parts.All(p => p.TryToValidate());
var totalLength = _parts.Select(p => p.CurrentLength).Sum();
if (!isValid || totalLength != inputTokens.Length)
{
return(null);
}
var constraints = inputConstraints;
for (var i = 0; i < _parts.Length; ++i)
{
constraints = _parts[i].Substitute(constraints);
}
return(_pattern.WithConstraints(constraints));
}
