Internationalizations.swift

import Foundation

extension String {

    /**
     Returns a country flag from an **uppercased** ISO Alpha-2 country code String
     Example usage: "US".flag
     @return A flag emoji. Example: 🇺🇸
     */

    var flag: String {
        var flag_str = ""

        let base : UInt32 = 127397
        let upper = self.uppercased()
        for scalar in upper.unicodeScalars {
            flag_str.unicodeScalars.append(UnicodeScalar(base + scalar.value)!)
        }
        return flag_str.isEmpty ? self : flag_str // String(flagString)
    }
}

// ISOLanguageCode
public struct ISOLanguageCode {

    public private(set) var code: String
    public var name: String {
        return ISOLanguageCode.ISOCodes[code.lowercased()]!
    }

    public init? (_ code: String) {
        guard ISOLanguageCode.ISOCodes[code.lowercased()] != nil else { return nil }
        self.code = code.uppercased()
    }

    static let ISOCodes: [String:String] =
        [
            "ab":	"Abkhazian",
            "aa":	"Afar",
            "af":	"Afrikaans",
            "ak":	"Akan",
            "sq":	"Albanian",
            "am":	"Amharic",
            "ar":	"Arabic",
            "an":	"Aragonese",
            "hy":	"Armenian",
            "as":	"Assamese",
            "av":	"Avaric",
            "ae":	"Avestan",
            "ay":	"Aymara",
            "az":	"Azerbaijani",
            "bm":	"Bambara",
            "ba":	"Bashkir",
            "eu":	"Basque",
            "be":	"Belarusian",
            "bn":	"Bengali",
            "bh":	"Bihari languages",
            "bi":	"Bislama",
            "bs":	"Bosnian",
            "br":	"Breton",
            "bg":	"Bulgarian",
            "my":	"Burmese",
            "ca":	"Catalan, Valencian",
            "km":	"Central Khmer",
            "ch":	"Chamorro",
            "ce":	"Chechen",
            "ny":	"Chichewa, Chewa, Nyanja",
            "zh":	"Chinese",
            "cu":	"Church Slavonic, Old Bulgarian, Old Church Slavonic",
            "cv":	"Chuvash",
            "kw":	"Cornish",
            "co":	"Corsican",
            "cr":	"Cree",
            "hr":	"Croatian",
            "cs":	"Czech",
            "da":	"Danish",
            "dv":	"Divehi, Dhivehi, Maldivian",
            "nl": 	"Dutch, Flemish",
            "dz":	"Dzongkha",
            "en":	"English",
            "eo":	"Esperanto",
            "et":	"Estonian",
            "ee":	"Ewe",
            "fo":	"Faroese",
            "fj":	"Fijian",
            "fi":	"Finnish",
            "fr":	"French",
            "ff":	"Fulah",
            "gd":	"Gaelic, Scottish Gaelic",
            "gl":	"Galician",
            "lg":	"Ganda",
            "ka":	"Georgian",
            "de":	"German",
            "ki":	"Gikuyu, Kikuyu",
            "el":	"Greek (Modern)",
            "kl":	"Greenlandic, Kalaallisut",
            "gn":	"Guarani",
            "gu":	"Gujarati",
            "ht":	"Haitian, Haitian Creole",
            "ha":	"Hausa",
            "he":	"Hebrew",
            "hz":	"Herero",
            "hi":	"Hindi",
            "ho":	"Hiri Motu",
            "hu":	"Hungarian",
            "is":	"Icelandic",
            "io":	"Ido",
            "ig":	"Igbo",
            "id":	"Indonesian",
            "ia":	"Interlingua (International Auxiliary Language Association)",
            "ie":	"Interlingue",
            "iu":	"Inuktitut",
            "ik":	"Inupiaq",
            "ga":	"Irish",
            "it":	"Italian",
            "ja":	"Japanese",
            "jv":	"Javanese",
            "kn":	"Kannada",
            "kr":	"Kanuri",
            "ks":	"Kashmiri",
            "kk":	"Kazakh",
            "rw":	"Kinyarwanda",
            "kv":	"Komi",
            "kg":	"Kongo",
            "ko":	"Korean",
            "kj":	"Kwanyama, Kuanyama",
            "ku":	"Kurdish",
            "ky":	"Kyrgyz",
            "lo":	"Lao",
            "la":	"Latin",
            "lv":	"Latvian",
            "lb":	"Letzeburgesch, Luxembourgish",
            "li":	"Limburgish, Limburgan, Limburger",
            "ln":	"Lingala",
            "lt":	"Lithuanian",
            "lu":	"Luba-Katanga",
            "mk":	"Macedonian",
            "mg":	"Malagasy",
            "ms":	"Malay",
            "ml":	"Malayalam",
            "mt":	"Maltese",
            "gv":	"Manx",
            "mi":	"Maori",
            "mr":	"Marathi",
            "mh":	"Marshallese",
            "ro":	"Moldovan, Moldavian, Romanian",
            "mn":	"Mongolian",
            "na":	"Nauru",
            "nv":	"Navajo, Navaho",
            "nd":	"Northern Ndebele",
            "ng":	"Ndonga",
            "ne":	"Nepali",
            "se":	"Northern Sami",
            "no":	"Norwegian",
            "nb":	"Norwegian Bokmål",
            "nn":	"Norwegian Nynorsk",
            "ii":	"Nuosu, Sichuan Yi",
            "oc":	"Occitan (post 1500)",
            "oj":	"Ojibwa",
            "or":	"Oriya",
            "om":	"Oromo",
            "os":	"Ossetian, Ossetic",
            "pi":	"Pali",
            "pa":	"Panjabi, Punjabi",
            "ps":	"Pashto, Pushto",
            "fa":	"Persian",
            "pl":	"Polish",
            "pt":	"Portuguese",
            "qu":	"Quechua",
            "rm":	"Romansh",
            "rn":	"Rundi",
            "ru":	"Russian",
            "sm":	"Samoan",
            "sg":	"Sango",
            "sa":	"Sanskrit",
            "sc":	"Sardinian",
            "sr":	"Serbian",
            "sn":	"Shona",
            "sd":	"Sindhi",
            "si":	"Sinhala, Sinhalese",
            "sk":	"Slovak",
            "sl":	"Slovenian",
            "so":	"Somali",
            "st":	"Sotho, Southern",
            "nr":	"South Ndebele",
            "es":	"Spanish, Castilian",
            "su":	"Sundanese",
            "sw":	"Swahili",
            "ss":	"Swati",
            "sv":	"Swedish",
            "tl":	"Tagalog",
            "ty":	"Tahitian",
            "tg":	"Tajik",
            "ta":	"Tamil",
            "tt":	"Tatar",
            "te":	"Telugu",
            "th":	"Thai",
            "bo":	"Tibetan",
            "ti":	"Tigrinya",
            "to":	"Tonga (Tonga Islands)",
            "ts":	"Tsonga",
            "tn":	"Tswana",
            "tr":	"Turkish",
            "tk":	"Turkmen",
            "tw":	"Twi",
            "ug":	"Uighur, Uyghur",
            "uk":	"Ukrainian",
            "ur":	"Urdu",
            "uz":	"Uzbek",
            "ve":	"Venda",
            "vi":	"Vietnamese",
            "vo":	"Volap_k",
            "wa":	"Walloon",
            "cy":	"Welsh",
            "fy":	"Western Frisian",
            "wo":	"Wolof",
            "xh":	"Xhosa",
            "yi":	"Yiddish",
            "yo":	"Yoruba",
            "za":	"Zhuang, Chuang",
            "zu":	"Zulu"
    ]
}