Language code: exception and support of "set 1" language code of ISO 639

[s-celles]

Hi,

I'm trying the following

julia> using Languages
julia> Languages.from_code("eng")
Languages.English()
julia> Languages.from_code("en")
# returns nothing

It's a bit odd to return nothing but not raising an exception.

According to https://en.wikipedia.org/wiki/List_of_ISO_639_language_codes en is a valid language code (set 1)

Supporting the whole standard should probably be considered

Best regards

[jingu-kim]

This library doesn't support ISO 639-1 codes, so you need to write your own code. Please see below :

iso639_3_to_1_map = Dict(
    "aar" => "aa", "abk" => "ab", "afr" => "af", "aka" => "ak", "alb" => "sq",
    "amh" => "am", "ara" => "ar", "arg" => "an", "arm" => "hy", "asm" => "as",
    "ava" => "av", "ave" => "ae", "aym" => "ay", "aze" => "az", "bak" => "ba",
    "bam" => "bm", "baq" => "eu", "bel" => "be", "ben" => "bn", "bih" => "bh",
    "bis" => "bi", "bos" => "bs", "bre" => "br", "bul" => "bg", "bur" => "my",
    "cat" => "ca", "cha" => "ch", "che" => "ce", "chi" => "zh", "chu" => "cu",
    "chv" => "cv", "cor" => "kw", "cos" => "co", "cre" => "cr", "cze" => "cs",
    "dan" => "da", "div" => "dv", "dut" => "nl", "dzo" => "dz", "eng" => "en",
    "epo" => "eo", "est" => "et", "ewe" => "ee", "fao" => "fo", "fij" => "fj",
    "fin" => "fi", "fre" => "fr", "fry" => "fy", "ful" => "ff", "geo" => "ka",
    "ger" => "de", "gla" => "gd", "gle" => "ga", "glg" => "gl", "glv" => "gv",
    "gre" => "el", "grn" => "gn", "guj" => "gu", "hat" => "ht", "hau" => "ha",
    "heb" => "he", "her" => "hz", "hin" => "hi", "hmo" => "ho", "hrv" => "hr",
    "hun" => "hu", "ibo" => "ig", "ice" => "is", "ido" => "io", "iii" => "ii",
    "iku" => "iu", "ile" => "ie", "ina" => "ia", "ind" => "id", "ipk" => "ik",
    "ita" => "it", "jav" => "jv", "jpn" => "ja", "kal" => "kl", "kan" => "kn",
    "kas" => "ks", "kau" => "kr", "kaz" => "kk", "khm" => "km", "kik" => "ki",
    "kin" => "rw", "kir" => "ky", "kom" => "kv", "kon" => "kg", "kor" => "ko",
    "kua" => "kj", "kur" => "ku", "lao" => "lo", "lat" => "la", "lav" => "lv",
    "lim" => "li", "lin" => "ln", "lit" => "lt", "ltz" => "lb", "lub" => "lu",
    "lug" => "lg", "mac" => "mk", "mah" => "mh", "mal" => "ml", "mao" => "mi",
    "mar" => "mr", "may" => "ms", "mlg" => "mg", "mlt" => "mt", "mon" => "mn",
    "nau" => "na", "nav" => "nv", "nbl" => "nr", "nde" => "nd", "ndo" => "ng",
    "nep" => "ne", "nno" => "nn", "nob" => "nb", "nor" => "no", "nya" => "ny",
    "oci" => "oc", "oji" => "oj", "ori" => "or", "orm" => "om", "oss" => "os",
    "pan" => "pa", "per" => "fa", "pli" => "pi", "pol" => "pl", "por" => "pt",
    "pus" => "ps", "que" => "qu", "roh" => "rm", "rum" => "ro", "run" => "rn",
    "rus" => "ru", "sag" => "sg", "san" => "sa", "sin" => "si", "slo" => "sk",
    "slv" => "sl", "sme" => "se", "smo" => "sm", "sna" => "sn", "snd" => "sd",
    "som" => "so", "sot" => "st", "spa" => "es", "srd" => "sc", "srp" => "sr",
    "ssw" => "ss", "sun" => "su", "swa" => "sw", "swe" => "sv", "tah" => "ty",
    "tam" => "ta", "tat" => "tt", "tel" => "te", "tgk" => "tg", "tgl" => "tl",
    "tha" => "th", "tib" => "bo", "tir" => "ti", "ton" => "to", "tsn" => "tn",
    "tso" => "ts", "tuk" => "tk", "tur" => "tr", "twi" => "tw", "uig" => "ug",
    "ukr" => "uk", "urd" => "ur", "uzb" => "uz", "ven" => "ve", "vie" => "vi",
    "vol" => "vo", "wel" => "cy", "wln" => "wa", "wol" => "wo", "xho" => "xh",
    "yid" => "yi", "yor" => "yo", "zha" => "za", "zul" => "zu"
)

function iso639_3_to_1(code)
    get(iso639_3_to_1_map, code, "$code is not found in the ISO 639-3 list.")
end

println(iso639_3_to_1("kor"))

[s-celles]

Thanks @jingu-kim

It might be a good idea to create a package to handle ISO 639.