validation

@objc   func loginViewTapped(sender: UITapGestureRecognizer) {
        print("bigButtonTapped")
        self.errorMsgView.isHidden = true



        guard let phone = phoneNumberTF.text?.trimmed, !phone.isEmpty

            else{
                self.errorMsgView.isHidden = false
                errorMsgView.text  = MOBILE_ERROR_MSG
                return
           }

        phoneNumberTF.text = self.toEnglishNumber(number: phone)

        guard isValidphoneNum(value: phoneNumberTF.text!)else{
            self.errorMsgView.isHidden = false
            errorMsgView.text  = VALID_PHONE_NUM
            return

        }

        loginRequest(phone:phoneNumberTF.text!)

    }

func toEnglishNumber(number: String) -> String {

        var result:NSNumber = 0

        let numberFormatter = NumberFormatter()
        numberFormatter.locale = Locale(identifier: "EN")
        if let finalText = numberFormatter.number(from: number)
        {
//            print("Intial text is: ", number)
//            print("Final text is: ", finalText)


            result =  finalText

        }


        return "\(result.int64Value)"
    }

func isValidphoneNum(value:String) -> Bool {
        // print("validate calendar: \(testStr)")
        let phoneRegEx = "^(009665|9665|\\+9665|05|5)(5|0|3|6|4|9|1|8|7)([0-9]{7})"

        let phoneTest = NSPredicate(format:"SELF MATCHES %@", phoneRegEx)
        return phoneTest.evaluate(with: value)
    }

     func validateEmail(enteredEmail:String) -> Bool {

        let emailFormat = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
        let emailPredicate = NSPredicate(format:"SELF MATCHES %@", emailFormat)
        return emailPredicate.evaluate(with: enteredEmail)

    }