struct

Panini::Alphabet

Inherits Struct < Value < Object

Constants

EPSILON = ""

NIL = Alphabet.new

an empty alphabet used as a dummy placeholder, esp. for PHI and EPSILON languages also used to denote that alphabet set need not be used for validating strings for a given language

Constructors

new(symbols : Set(Char) = Set(Char).new)

Source

Class methods

from(*chars : Char)

Source

Instance methods

**(exponent)

|(other)

defines?(string)

powers

symbols