ios - Convert Arabic String to english number in Swift

Question

How to convert non English number to English number like : "??????????" to "3486912881" in Swift or I want to accept just english numbers and obtain others.

In Java Android this code is working for me:

private static String arabicToDecimal(String number) {
    char[] chars = new char[number.length()];
    for(int i=0;i<number.length();i++) {
        char ch = number.charAt(i);
        if (ch >= 0x0660 && ch <= 0x0669)
           ch -= 0x0660 - '0';
        else if (ch >= 0x06f0 && ch <= 0x06F9)
           ch -= 0x06f0 - '0';
        chars[i] = ch;
    }
    return new String(chars);
}

Answer 1

do like

     let NumberStr: String = "????-??-??"
    let Formatter = NumberFormatter()
    Formatter.locale = NSLocale(localeIdentifier: "EN") as Locale!
    if let final = Formatter.number(from: NumberStr) {
        print(final)

    }

output

the alternate way

Option 2

extension String {
    public var arToEnDigits : String {
        let arabicNumbers = ["?": "0","?": "1","?": "2","?": "3","?": "4","?": "5","?": "6","?": "7","?": "8","?": "9"]
        var txt = self
        arabicNumbers.map { txt = txt.replacingOccurrences(of: $0, with: $1)}
        return txt
    }
}