And it starts again - web framework, 2048, flappy bird, http server, PySwift, JSwift, How I switched from Go to Swift, Swide: The Open Source swift IDE.. :)
let result = CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, self.bridgeToObjectiveC(), charactersToLeaveUnescaped, charactersToBeEscaped, CFStringConvertNSStringEncodingToEncoding(encoding)) as String