Simple Swift M3U Parser

m3u_parser.swift

if
    let path = NSBundle.mainBundle().pathForResource("tvhd", ofType: "m3u"),
    let content = try? String(contentsOfFile: path, encoding: NSUTF8StringEncoding)
{
    let lines = content.componentsSeparatedByCharactersInSet(.newlineCharacterSet())
    
    var streams = [String: NSURL]()
    var streamName: String?
    for line in lines {
        if line.containsString("#") {
            if let match = line.rangeOfString("^#EXTINF:-1,", options: .RegularExpressionSearch) {
                streamName = line.substringWithRange(Range<String.Index>(start: match.endIndex, end: line.endIndex))
            }
        } else if !line.isEmpty {
            if
                let _streamName = streamName,
                let url = NSURL(string: line)
            {
                streams[_streamName] = url
            }
        }
    }
    return streams
} else {
    return nil
}