Rot13 in Swift

Rot13 in

Swift

Welcome to the Rot13 in Swift page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

import Foundation

let usage = "Usage: please provide a string to encrypt"

extension StringProtocol {
    var rot13: String {
        String(
            unicodeScalars.map { scalar in
                switch scalar {
                case "A"..."M", "a"..."m":
                    return Character(UnicodeScalar(scalar.value + 13)!)
                case "N"..."Z", "n"..."z":
                    return Character(UnicodeScalar(scalar.value - 13)!)
                default:
                    return Character(scalar)
                }
            }
        )
    }
}

guard
    let input = CommandLine.arguments.dropFirst().first,
    !input.isEmpty
else {
    print(usage)
    exit(1)
}

print(input.rot13)

Rot13 in Swift was written by:

• Ștefan-Iulian Alecu

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.