Color ouput with Swift command line tool

Question

I\'m writing a command line tool with Swift and I\'m having trouble displaying colors in my shell. I\'m using the following code:

println(\"\\033[31;32mhey\\033         


        

Answer 1

Based on @cyt answer, I've written a simple enum with these colors and also overloaded + operator so you can print using that enum.

It's all up on Github, but it's really that simple:

enum ANSIColors: String {
    case black = "\u{001B}[0;30m"
    case red = "\u{001B}[0;31m"
    case green = "\u{001B}[0;32m"
    case yellow = "\u{001B}[0;33m"
    case blue = "\u{001B}[0;34m"
    case magenta = "\u{001B}[0;35m"
    case cyan = "\u{001B}[0;36m"
    case white = "\u{001B}[0;37m"

    func name() -> String {
        switch self {
        case .black: return "Black"
        case .red: return "Red"
        case .green: return "Green"
        case .yellow: return "Yellow"
        case .blue: return "Blue"
        case .magenta: return "Magenta"
        case .cyan: return "Cyan"
        case .white: return "White"
        }
    }

    static func all() -> [ANSIColors] {
        return [.black, .red, .green, .yellow, .blue, .magenta, .cyan, .white]
    }
}

func + (let left: ANSIColors, let right: String) -> String {
    return left.rawValue + right
}

// END


// Demo:

for c in ANSIColors.all() {
    println(c + "This is printed in " + c.name())
}