func unicode/utf8.RuneCount

4 uses

	unicode/utf8 (current package)
		utf8.go#L400: func RuneCount(p []byte) int {

	bytes
		bytes.go#L58: 		return utf8.RuneCount(s) + 1
		bytes.go#L1113: 	t := make([]rune, utf8.RuneCount(s))

	fmt
		format.go#L95: 	width := f.wid - utf8.RuneCount(b)