How do I get user input in Apple's Swift language in a command line tool? [duplicate]

Answer 1

This is actually not easy in Swift at this point. The simplest way is probably the Objective-C way, using an NSFileHandle with standard input:

import Foundation

var fh = NSFileHandle.fileHandleWithStandardInput()

println("What is your name?")
if let data = fh.availableData {
    var str = NSString(data: data, encoding: NSUTF8StringEncoding)
    println("Your name is \(str)")
}

Or for continuous input:

println("I will repeat strings back at you:")
waitingOnInput: while true {
    if let data = fh.availableData {
        var str = NSString(data: data, encoding: NSUTF8StringEncoding)
        println(str)
    }
}

The possible encodings are shown here.