PunycodeSwift

PunycodeSwift is a pure Swift library to allows you to encode and decode punycoded strings by using String extension.

What is Punycode?

Punycode is a representation of Unicode with the limited ASCII character subset used for Internet host names. Using Punycode, host names containing Unicode characters are transcoded to a subset of ASCII consisting of letters, digits, and hyphen, which is called the Letter-Digit-Hyphen (LDH) subset. For example, München (German name for Munich) is encoded as Mnchen-3ya. (Wikipedia)

Requirements

• macOS 10.13 or later
• iOS 12.0 or later
• tvOS 12.0 or later
• watchOS 4.0 or later
• visionOS 1.0 or later
• Swift 5.0 or later

Installation

Swift Package Manager

Add the following to your Package.swift file.

• macOS, iOS, tvOS, watchOS, visionOS, and Swift 5

  dependencies: [
      .package(url: "https://github.com/gumob/PunycodeSwift.git", .upToNextMajor(from: "3.0.0"))
  ]

• macOS, iOS, tvOS, and Swift 5

  dependencies: [
      .package(url: "https://github.com/gumob/PunycodeSwift.git", .upToNextMajor(from: "2.1.1"))
  ]

Carthage

Add the following to your Cartfile and follow these instructions.

• macOS, iOS, tvOS, watchOS, visionOS, and Swift 5

  github "gumob/PunycodeSwift" ~> 3.0
  

• macOS, iOS, tvOS, and Swift 5

  github "gumob/PunycodeSwift" ~> 2.0
  

• macOS, iOS, tvOS, and Swift 4

  github "gumob/PunycodeSwift" ~> 1.0
  

CocoaPods

To integrate TLDExtract into your project, add the following to your Podfile.

• macOS, iOS, tvOS, watchOS, visionOS, and Swift 5.0

  pod 'Punycode', '~> 3.0'

• macOS, iOS, tvOS, and Swift 5.0

  pod 'Punycode', '~> 2.0'

• macOS, iOS, tvOS, and Swift 4.2

  pod 'Punycode', '~> 1.0'

Usage

Full documentation is available at https://gumob.github.io/PunycodeSwift/swiftdoc/.

Encode and decode IDNA:

import Punycode

var sushi: String = "寿司"

sushi = sushi.idnaEncoded!
print(sushi)  // xn--sprr0q

sushi = sushi.idnaDecoded!
print(sushi)  // "寿司"

Encode and decode Punycode directly:

import Punycode

var sushi: String = "寿司"

sushi = sushi.punycodeEncoded!
print(sushi)  // sprr0q

sushi = sushi.punycodeDecoded!
print(sushi)  // "寿司"

Copyright

Punycode is released under MIT license, which means you can modify it, redistribute it or use it however you like.