How to display indirectly given unicode character in Swift?

Question

In a JSON data file, I have a unicode character like this:

{
    ”myUnicodeCharacter”: ”\\\\u{25a1}”
}

I know how to read data from JSON fi

Answer 1

I came up with a solution, which does not answer the question, but is actually a better way of doing what I'm trying to do.

The unicode character is given instead as its hexadecimal value in the JSON data file, stripping all escape characters:

{
    ”myUnicodeCharacter”: ”25a1”
}

Then it's processed like this, after reading the value in to myUnicodeCharacterString:

let num = Int(strtoul(myUnicodeCharacterString, nil, 16))
mySKLabelNode.Text = String(UnicodeScalar(num))

And that worked. Now the hollow square showed up.