GO emoji 正则表达式

// emoji regexp
// \{1F300}-\x{1F64F}\x{1F680}-\x{1F6FF}\x{2600}-\x{2B55}
emoji := `😂`
if matched := regexp.
    MustCompile(`^[a-zA-Z0-9_\p{Han}\{1F300}-\x{1F64F}\x{1F680}-\x{1F6FF}\x{2600}-\x{2B55}]{1,20}$`).
    Match([]byte(emoji)); true {
    log.Println(matched)
}