SwiftASCII

ASCIIString and ASCIICharacter types for Swift offering validation and lossy conversion from String.

Complete unit test coverage.

Getting Started

1. SwiftASCII is available as a Swift Package that can be added as a dependency in your app or package.

   • In an Xcode app project or framework add the package dependency to your target using this URL:

     https://github.com/orchetect/SwiftASCII

   • In a Swift Package, add it to the Package.swift dependencies:

     .package(url: "https://github.com/orchetect/SwiftASCII", from: "1.1.5")

2. Import the library:

   import SwiftASCII

ASCIIString

// failable init
ASCIIString(exactly: "An ASCII String.") // succeeds
ASCIIString(exactly: "Ãñ ÂŚÇÏÎ Strïńg.") // nil

// lossy string conversion making ASCII-compatible substitutions
ASCIIString("An ASCII String.") // "An ASCII String." (unchanged)
ASCIIString("Ãñ ÂŚÇÏÎ Strïńg.") // "An ASCII String." (substituted)

// lossy string conversion through String literal type inference
let str: ASCIIString = "Ãñ ÂŚÇÏÎ Strïńg."
print(str) // "An ASCII String." (substituted)

let asciiString = ASCIIString("ÂŚÇÏÎ")

// returns typed as String
asciiString.stringValue // "ASCII"

// returns Data representation of string
asciiString.rawData // Data([0x41, 0x53, 0x43, 0x49, 0x49])

ASCIICharacter

// failable init
ASCIICharacter(exactly: "A") // succeeds
ASCIICharacter(exactly: "Ω") // nil

// lossy string conversion making ASCII-compatible substitutions
ASCIICharacter("A") // "A" (unchanged)
ASCIICharacter("Ã") // "A" (substituted)

// lossy character conversion through Character literal type inference
let char: ASCIICharacter = "Ä"
print(char) // "A" (substituted)

// failable ASCII integer literal init
ASCIICharacter(65) // "A"
ASCIICharacter(300) // nil

let asciiString = ASCIICharacter("Ä")

// returns typed as Character
asciiString.characterValue // Character("A")

// returns ASCII integer literal
asciiString.asciiValue // 65

// returns Data representation of character
asciiString.rawData // Data([0x41])

Author

Coded by a bunch of 🐹 hamsters in a trenchcoat that calls itself @orchetect.

License

Licensed under the MIT license. See LICENSE for details.

Contributions

Contributions are welcome. Feel free to post an Issue to discuss.