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Mohammad Khir Alsaid
Mohammad Khir Alsaid

Reputation: 223

Convert Arabic String to english number in Swift

How to convert non English number to English number like : "٣٤٨٦٩١٢٨٨١" 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);
}

Upvotes: 10

Views: 14192

Answers (5)

Mor4eza
Mor4eza

Reputation: 305

I think the easiest and Swifty way is using compactMap:

//this code is for Persian numbers, but you can easily change number dictionary values to arabic numbers.

    extension String {

        func convertToPersianNum() -> String {
            let numbers:[Character : Character] = ["1":"۱","2":"۲","3":"۳","4":"۴","5":"۵","6":"۶","7":"۷","8":"۸","9":"۹","0":"۰"]

            let converted = String(self.compactMap{numbers[$0]})

            return converted

        }

    }


    "123456".convertToPersianNum() //۱۲۳۴۵۶

Upvotes: 0

Anbu.Karthik
Anbu.Karthik

Reputation: 82759

do like

     let NumberStr: String = "٢٠١٨-٠٦-٠٤"
    let Formatter = NumberFormatter()
    Formatter.locale = NSLocale(localeIdentifier: "EN") as Locale!
    if let final = Formatter.number(from: NumberStr) {
        print(final)

    }

output

enter image description here

the alternate way

Option 2

extension String {
    public var arToEnDigits : String {
        let arabicNumbers = ["٠": "0","١": "1","٢": "2","٣": "3","٤": "4","٥": "5","٦": "6","٧": "7","٨": "8","٩": "9"]
        var txt = self
        arabicNumbers.map { txt = txt.replacingOccurrences(of: $0, with: $1)}
        return txt
    }
}

Upvotes: 23

Hossam Ghareeb
Hossam Ghareeb

Reputation: 7113

The problem with using NumberFormatter is that it will ignore other non numeric characters, for example if you have Hello ١٢٣ it will be 123. To keep other characters and only convert numeric ones, you can use the following:

public extension String {

public var replacedArabicDigitsWithEnglish: String {
    var str = self
    let map = ["٠": "0",
               "١": "1",
               "٢": "2",
               "٣": "3",
               "٤": "4",
               "٥": "5",
               "٦": "6",
               "٧": "7",
               "٨": "8",
               "٩": "9"]
    map.forEach { str = str.replacingOccurrences(of: $0, with: $1) }
    return str
}
}

/// usage

"Hello ١٢٣٤٥٦٧٨٩١٠".replacedArabicDigitsWithEnglish // "Hello 12345678910"

Upvotes: 19

Haitham Alsheikh
Haitham Alsheikh

Reputation: 71

To use above codes as function try this:

func toEnglishNumber(number: String) -> NSNumber {

       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
}

To use the function:

 print(toEnglishNumber(number: "١٢"))

Upvotes: 5

Hiren Panchal
Hiren Panchal

Reputation: 3023

For Swift 3.0 Or up:

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

Upvotes: 2

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