Using Swift .split to format an array - swift

Question

I am reading in a text file of translation pairs of this format:
boy:garçon
garçon:boy
Into an array using the following code:
var vocab:[String:String] = [:]
let path = Bundle.main.path(forResource: "words_alpha", ofType: "txt")!
let text = try! String(contentsOfFile: path, encoding: String.Encoding.utf8)
let vocab = text.components(separatedBy: CharacterSet.newlines)
The imported array looks like this:
["boy:garçon", "garçon:boy"]
Whereas I would like the array to be formatted like this:
["boy":"garçon", "garçon":"boy"]
What is the best way to achieve the desired array format shown above using a Swift string transformation?
Have been trying to use .split, but with not much success.

Answer 1

Let's be clear:
["boy":"garçon", "garçon":"boy"]
That's a Dictionary, not an Array.
There a multiples ways to do that, here's two possible codes:
var manual: [String: String] = [:]
array.forEach { aString in
let components = aString.components(separatedBy: ":")
guard components.count == 2 else { return }
manual[components[0]] = components[1]
}
print(manual)
or
let reduced = array.reduce(into: [String: String]()) { result, current in
let components = current.components(separatedBy: ":")
guard components.count == 2 else { return }
result[components[0]] = components[1]
}
print(reduced)
Output (for both):
$> ["garçon": "boy", "boy": "garçon"]
As said, it's a Dictionary, so there is no guarantee that the print be:
["garçon": "boy", "boy": "garçon"] or ["boy":"garçon", "garçon":"boy"], it's key-value access, not index-value access.