Function getIndex

cipher/transposition/transposition.go:43–51

(wordSet []rune, subString rune)

}

func getIndex(wordSet []rune, subString rune) int {
	n := len(wordSet)
	for i := 0; i < n; i++ {
		if wordSet[i] == subString {
			return i
		}
	}
	return 0
}

func Encrypt(text []rune, keyWord string) ([]rune, error) {
	key := getKey(keyWord)