package strings

import (

	"strings"

	"unicode/utf8"

)

func IndexAnyRunes(s string, rs []rune) int {

	for _, r := range rs {

		if i := strings.IndexRune(s, r); i != -1 {

			return i

		}

	}

	return -1

}

func LastIndexAnyRunes(s string, rs []rune) int {

	for _, r := range rs {

		i := -1

		if 0 <= r && r < utf8.RuneSelf {

			i = strings.LastIndexByte(s, byte(r))

		} else {

			sub := s

			for len(sub) > 0 {

				j := strings.IndexRune(s, r)

				if j == -1 {

					break

				}

				i = j

				sub = sub[i+1:]

			}

		}

		if i != -1 {

			return i

		}

	}

	return -1

}