func unicode/utf8.DecodeLastRune

6 uses

	unicode/utf8 (current package)
		utf8.go#L247: func DecodeLastRune(p []byte) (r rune, size int) {

	bytes
		bytes.go#L300: 			r, size := utf8.DecodeLastRune(s[:i])
		bytes.go#L317: 		r, size := utf8.DecodeLastRune(s[:i])
		bytes.go#L893: 			r, size = utf8.DecodeLastRune(s[0:i])
		bytes.go#L1060: 			r, n = utf8.DecodeLastRune(s)

	regexp
		regexp.go#L467: 			r1, _ = utf8.DecodeLastRune(i.str[:pos])