Modul:Language/name/data

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-- put tables and their tables together local function __coalesce(...)

   local coalesced = {}
   for _, langslist in ipairs{...} do
       for langcode, langnames in pairs(langslist) do
           for _, langname in pairs(langnames) do
               if not coalesced[langcode] then
                   coalesced[langcode] = {}
               end
               table.insert(coalesced[langcode], langname)
           end
       end
   end

   return coalesced

end

-- make the keys lowercase local function __preprocess(t, first_of_array_in_array)

   local preprocessed = {}
   if first_of_array_in_array then
   	-- keep only the 1st language name for each code, excluding synonyms
       for k, v in pairs(t) do
           preprocessed[k:lower()] = {v[1]}
       end
   else
       for k, v in pairs(t) do
           preprocessed[k:lower()] = v
       end
   end
   return preprocessed

end

-- all valid primary language subtags for BCP47 from IANA (most of them from ISO 639-1, -2 and -3 with some exclusions) local __iana_languages = __preprocess(require("Module:Language/data/iana languages")); -- ISO 639-3 contains additional 3-letter codes not inserted in the IANA database as they are aliased to 2-letter codes, -- but excludes some deleted codes still valid in BCP47 (some of them are aliased) local __iso_639_3 = __preprocess(require("Module:Language/data/ISO 639-3")); -- Wikimedia wikis uses some non-standard codes and a subset of IANA codes, plus composite codes local __wp_languages = __preprocess(require("Module:Language/data/wp languages"), true); -- all valid script subtags for BCP47 from IANA (excluding special ISO 15924 codes) local iana_scripts = __preprocess(require("Module:Language/data/iana scripts")); -- all valid region subtags for BCP47 from IANA (derived from ISO 3166-1 excluding special codes, and from 3-digit UN M.49 codes for groups of countries) local iana_regions = __preprocess(require("Module:Language/data/iana regions"));

-- variant subtags from IANA; table format differs from the other IANA data tables local iana_variants = __preprocess(require("Module:Language/data/iana variants")); -- suppressed script subtags from IANA; local iana_suppressed_scripts = __preprocess (require("Module:Language/data/iana suppressed scripts"));

return {

   lang   = __coalesce(__wp_languages, __iana_languages, __iso_639_3),
   lang_iana = __iana_languages,
   script = iana_scripts,
   region = iana_regions,
   variant = iana_variants,
   suppressed = iana_suppressed_scripts,

}