fmt.Printf("%q, %v\n", s, err)

	// Output:
	// "", invalid syntax
	// "\"double-quoted string\"", <nil>
	// "`or backquoted`", <nil>
	// "'☺'", <nil>
}

func ExampleUnquote() {
	s, err := strconv.Unquote("You can't unquote a string without quotes")
	fmt.Printf("%q, %v\n", s, err)
	s, err = strconv.Unquote("\"The string must be either double-quoted\"")
	fmt.Printf("%q, %v\n", s, err)