swift output ints from regex

gistfile1.txt

// Playground - noun: a place where people can play

import Foundation

class Regex {
    let internalExpression: NSRegularExpression
    let pattern: String
    
    init(_ pattern: String) {
        self.pattern = pattern
        var error: NSError?
        self.internalExpression = NSRegularExpression(pattern: pattern, options: .CaseInsensitive, error: &error)!
    }
    
    func test(input: String) -> Array<AnyObject> {
        let matches: Array = self.internalExpression.matchesInString(input, options: nil, range:NSMakeRange(0, countElements(input)))
        return matches
    }
}


var str = "Hello I am a string 123 and I have numbers hail satan 666"

var matches = Regex("\\d").test(str)

for match in matches {
    let string = str as NSString
    let capture_int: String = string.substringWithRange(match.range)
    println(capture_int)
}