package nrandom

const (
	letterIdBits = 6
	letterIdMask = 1<<letterIdBits - 1
	letterIdMax  = 64 / letterIdBits
)

const (
	Numeral      = "0123456789"
	LowerLetters = "abcdefghijklmnopqrstuvwxyz"
	UpperLetters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	Letters      = LowerLetters + UpperLetters
)