extension String {
    func matches(_ regex: String) -> Bool {
        return self.range(of: regex, options: .regularExpression, range: nil, locale: nil) != nil
    }

    func match(_ regex: String) -> [String] {
        do {
            let regex = try NSRegularExpression(pattern: regex, options: [])
            let nsString = self as NSString
            let results = regex.matches(in: self, options: [], range: NSMakeRange(0, nsString.length))
            return results.map { nsString.substring(with: $0.range)}
        } catch  {
            return []
        }
    }
}