(Swift 3,4,5...) Generating Random ASCII Strings

Demonstrates how to generate random us-ascii strings.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // All Chilkat classes can be unlocked at once at the beginning of a program
    // by calling UnlockBundle.  It requires a Bundle unlock code.
    let chilkatGlob = CkoGlobal()!
    var success: Bool = chilkatGlob.unlockBundle("Anything for 30-day trial.")
    if success != true {
        print("\(chilkatGlob.lastErrorText!)")
        return
    }

    let fortuna = CkoPrng()!

    var bDigits: Bool
    var bLowercase: Bool
    var bUppercase: Bool

    // Generate random strings having only lowercase chars (a-z)
    // Disallow digits and uppercase and only allow lowercase
    bDigits = false
    bUppercase = false
    bLowercase = true

    var i: Int

    print("-- only lowercase alpha (a-z)")
    for i = 1; i <= 10; i++ {
        // Generate 20-character strings.
        print("\(fortuna.randomString(20, bDigits: bDigits, bLower: bLowercase, bUpper: bUppercase)!)")
    }

    // Allow both lowercase and uppercase alpha chars
    bUppercase = true
    print("-- lower and uppercase alpha (a-zA-Z)")
    for i = 1; i <= 10; i++ {
        // Generate 20-character strings.
        print("\(fortuna.randomString(20, bDigits: bDigits, bLower: bLowercase, bUpper: bUppercase)!)")
    }

    // Allow digits (0-9)
    bDigits = true
    print("-- digits and lower/uppercase alpha (0-9a-zA-Z)")
    for i = 1; i <= 10; i++ {
        // Generate 20-character strings.
        print("\(fortuna.randomString(20, bDigits: bDigits, bLower: bLowercase, bUpper: bUppercase)!)")
    }

    // Allow only digits (0-9)
    bUppercase = false
    bLowercase = false
    print("-- only digits (0-9)")
    for i = 1; i <= 10; i++ {
        // Generate 20-character strings.
        print("\(fortuna.randomString(20, bDigits: bDigits, bLower: bLowercase, bUpper: bUppercase)!)")
    }


}