Playground figuring out emoji String encoding.

EmojiStrings.swift

//: Playground - noun: a place where people can play

import UIKit


extension Character
{
    func unicodeScalarCodePoint() -> String
    {
        let characterString = String(self)
        let scalars = characterString.unicodeScalars
        
        let integerRepresentation = scalars[scalars.startIndex].value
        return String(format:"%2X", integerRepresentation)
    }
}

extension String {
    
    func getScalars() -> [UInt32] {
        var tt = [UInt32]()
        for i in self.unicodeScalars {
            tt.append(i.value)
        }
        return tt
    }
    
// TODO 
    ///http://stackoverflow.com/questions/30757193/find-out-if-character-in-string-is-emoji
    
}

func charIntArrayToInputString(_ hexArray: [UInt32]) -> String {
    var str = ""
    for hex in hexArray {
        str += String( describing: UnicodeScalar(hex)! )
    }
    return str
}

var sunglasses = "😎"
var one = "\u{0001F44D}"
var fam = "👨‍👨‍👧"
var fam2 = "\u{0001F46A}"

var fam3 = "👨‍👩‍👧"
//man-woman-girl
//["1F468", "200D", "1F469", "200D", "1F467"]
//Man (0x0001F468) + glyph addition (0x0000200D) + Woman (0x0001F469) + glyph addition (0x0000200D) + Girl(0x0001F467)

Character(sunglasses)
let tt = one.substring(to: one.index(one.startIndex, offsetBy: 1) )

print ( Character(one).unicodeScalarCodePoint() )
print ( Character(one).unicodeScalarCodePoint() )
print ( charIntArrayToInputString(fam.getScalars()) )
print ( fam.getScalars() )
print ( fam2.getScalars() )
print ( Character(fam2) )
print ( fam3.getScalars().map{ return String(format:"%2X", $0) } )

//1F44D
//1F44D
//👨‍👨‍👧
//[128104, 8205, 128104, 8205, 128103]
//[128106]
//👪
//[128104, 8205, 128105, 8205, 128103]