public static Node Make(Token token, Node parent)
{
int id;
if (int.TryParse(token.Head, out id))
{
return Terminal.MakeNewTerminal(id, parent);
}
else
{
string f = token.Head.ToUpper();
var t = token.Tokens;
if (f == "AND")
{
return FunctionAnd.Make(t[0], t[1], parent);
}
else if (f == "OR")
{
return FunctionOr.Make(t[0], t[1], parent);
}
else if (f == "NOT")
{
return FunctionNot.Make(t[0], parent);
}
else
{
throw new Exception(string.Format("Invalid token head: {0}", f));
}
}
}
private FunctionOr(Token left, Token right, Node parent)
{
_parent = parent;
_left = NodeFactory.Make(left, this);
_right = NodeFactory.Make(right, this);
}
public static Node Make(string s, Node parent)
{
var token = new Token(s);
return Make(token, parent);
}
internal static Node Make(Token left, Token right, Node parent)
{
return new FunctionOr(left,right, parent);
}
private FunctionNot(Token token, Node parent)
{
_parent = parent;
_node = NodeFactory.Make(token, this);
}
internal static Node Make(Token token, Node parent)
{
return new FunctionNot(token, parent);
}