private readonly string[] _tokens = {
Tokens.Error,
Tokens.Hex,
Tokens.Oct,
Tokens.Str,
Tokens.CurDir,
Tokens.Command,
Tokens.Environ,
Tokens.Chr,
Tokens.ChrW,
Tokens.Format,
Tokens.LCase,
Tokens.Left,
Tokens.LeftB,
Tokens.LTrim,
Tokens.Mid,
Tokens.MidB,
Tokens.Trim,
Tokens.Right,
Tokens.RightB,
Tokens.RTrim,
Tokens.UCase
};