internal Node(Node parent, Char c)
{
_parent = parent;
_char = c;
_values = new List<string>();
_transitions = new Dictionary<Char, Node>();
}
private void AddKeyword(string keyword)
{
if (string.IsNullOrEmpty(keyword))
throw new ArgumentException();
Node current = _root;
foreach (var item in keyword)
{
Node next = null;
foreach (var transition in current.Transitions)
{
if (transition != null && transition.Char.CompareTo(item) == 0)
{
next = transition;
break;
}
}
if (next == null)
{
next = new Node(current, item);
current.AddTransition(next);
}
current = next;
}
current.AddValue(keyword);
current.Lable = keyword;
}
internal void AddTransition(Node node)
{
_transitions.Add(node.Char, node);
}