How to transpose an array of strings

Question

I\'ve a txt including some data in the following format.

AYGA:GKA:GOROKA:GOROKA:PAPUA NEW GUINEA:06:04:54:S:145:23:30:E:5282
AYLA:LAE::LAE:PAPUA NEW GUINEA:0         


        

Answer 1

Here is another alternative that handles different newline characters well and doesn't require any hard coding to get the correct number of arrays. The number of colon-separated components is read from the first line.

let input = "AYGA:GKA:GOROKA:GOROKA:PAPUA NEW GUINEA:06:04:54:S:145:23:30:E:5282\nAYLA:LAE::LAE:PAPUA NEW GUINEA:00:00:00:U:00:00:00:U:0000\nAYMD:MAG:MADANG:MADANG:PAPUA NEW GUINEA:05:12:25:S:145:47:19:E:0020"
var arrays: [[String]]?
input.enumerateLines { (line, _) in
    let chunks = line.componentsSeparatedByString(":")

    if arrays == nil {
        arrays = [[String]](count: chunks.count, repeatedValue: [String]())
    }

    chunks.enumerate().forEach { item in
        arrays?[item.index].append(item.element)
    }
}