CODEWITHSUNDEEP
regexswift
marchiore
marchiore

Reputation: 598

An alternative to add digits to phone number string using swift

I have strings with stores phone numbers with formats:

Than i need to make an algorithm to add 9090/90 before de 9999-9999 to get the results:

I know how to do it using an algorithm, but i need to know if i can do with a easiest and better way (like use regex).

Upvotes: 1

Views: 279

Answers (1)

Sergey Kalinichenko
Sergey Kalinichenko

Reputation: 726589

You can do it with a regular expression match:

let str = "+55 (14) 99999-9999"
let optRange = str.rangeOfString("[(]14[)]", options: .RegularExpressionSearch)
if let range = optRange? {
    let prefix = Range<String.Index>(start:str.startIndex, end:range.startIndex)
    let suffix = Range<String.Index>(start:range.startIndex, end:str.endIndex)
    let res = "\(str.substringWithRange(prefix))90 \(str.substringWithRange(suffix))"
    println(res)
}

This produces

+55 90 (14) 99999-9999

You would need an else branch to deal with the situation when the (14) substring is not found.

Upvotes: 2

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