A small playground to test characteristics of the new Strings implementation in Swift 5.0 and compare them to NSString

swift5-strings-test.playground

/// Below are two test functions and a collection of Unicode characters with various characteristics,
/// to test the Swift 5.0 String infrastructure and compare results with NSString.

import Foundation

func stringPrint(_ string: String) {
    print("String `\(string)` is \(string.data(using: .utf8)?.count ?? 0) byte(s) long and contains \(string.count) character(s).")
}

func nsStringPrint(_ string: NSString) {
    let data = string.data(using: 4)
    var stringFromData: NSString = ""
    if let data = data {
        stringFromData = NSString(data: data, encoding: 4) ?? ""
    }
    
    print("String `\(string)` is \(data?.count ?? 0) byte(s) long and contains \(string.length) character(s). NSString from data: \(stringFromData)")
}


func stringPrint(_ string: String) {
    print("String `\(string)` is \(string.data(using: .utf8)?.count ?? 0) byte(s) long and contains \(string.count) character(s).")
}

func nsStringPrint(_ string: NSString) {
    let data = string.data(using: 4)
    var stringFromData: NSString = ""
    if let data = data {
        stringFromData = NSString(data: data, encoding: 4) ?? ""
    }
    
    print("String `\(string)` is \(data?.count ?? 0) byte(s) long and contains \(string.length) character(s). String from data: \(stringFromData)")
}


let oneByte = "a"
stringPrint(oneByte)

let twoBytes = "α"
stringPrint(twoBytes)

let twoBytes1 = "ΐ"
stringPrint(twoBytes1)

let twoBytes2 = "å"
stringPrint(twoBytes2)

let twoBytes3 = "և"
stringPrint(twoBytes3)

let threeBytes0 = "熊"
stringPrint(threeBytes0)

let threeByte1 = "学"
stringPrint(threeByte1)

let threeByte2 = "他"
stringPrint(threeByte2)

let threeBytes3 = "ᅠ"
stringPrint(threeBytes3)

let threeBytes4 = "ẞ"
stringPrint(threeBytes4)

let fourBytes = "𠻗"
stringPrint(fourBytes)

let fourBytes2 = "𠻗𠻗"
stringPrint(fourBytes2)

let sixBytesTwoCharacters = "ᅠᾉ"
stringPrint(sixBytesTwoCharacters)

let sixBytesTwoCharacters1 = "ᅠᾋ"
stringPrint(sixBytesTwoCharacters1)

let sixBytesTwoCharacters2 = "ᅠᾣ"
stringPrint(sixBytesTwoCharacters2)

let thirtySixBytesTwoCharacters = "ᅠE̴̷̬͎̱̘͇͍̾ͦ͊͒͊̓̓̐"
stringPrint(thirtySixBytesTwoCharacters)

let nsString: NSString = "a"
nsStringPrint(nsString)

let nsString2: NSString = "ᾋ"
nsStringPrint(nsString2)

let nsString3: NSString = "E̴̷̬͎̱̘͇͍̾ͦ͊͒͊̓̓̐"
nsStringPrint(nsString3)