fmt.Println(reversed)
	fmt.Println(re.ReplaceAllString("Alan Turing", reversed))
	// Output:
	// true
	// ["" "first" "last"]
	// ${last} ${first}
	// Turing Alan
}

func ExampleRegexp_SubexpIndex() {
	re := regexp.MustCompile(`(?P<first>[a-zA-Z]+) (?P<last>[a-zA-Z]+)`)
	fmt.Println(re.MatchString("Alan Turing"))
	matches := re.FindStringSubmatch("Alan Turing")
	lastIndex := re.SubexpIndex("last")