Module:Languages

local export = {}

local function do_entry_name_or_sort_key_replacements(text, replacements) if replacements.from then for i, from in ipairs(replacements.from) do			local to = replacements.to[i] or "" text = mw.ustring.gsub(text, from, to) end end if replacements.remove_diacritics then if replacements.remove_exceptions then -- converts any exceptions into PUA characters, to avoid having characters stripped for _,exception in ipairs(replacements.remove_exceptions) do				local substitute = {mw.ustring.codepoint(exception,1,mw.ustring.len(exception))} for _,codepoint in ipairs(substitute) do codepoint = codepoint+0xF000 end text = mw.ustring.gsub(text, exception, table.concat(substitute)) end end text = mw.ustring.toNFD(text) text = mw.ustring.gsub(text,			'[' .. replacements.remove_diacritics .. ']',			'') text = mw.ustring.toNFC(text) if replacements.remove_exceptions then -- converts the exceptions back for _,exception in ipairs(replacements.remove_exceptions) do				local substitute = {mw.ustring.codepoint(exception,1,mw.ustring.len(exception))} for _,codepoint in ipairs(substitute) do codepoint = codepoint+0xF000 end text = mw.ustring.gsub(text, table.concat(substitute), exception) end end end return text end

local Language = {}

function Language:getCode return self._code end

function Language:getCanonicalName return self._rawData[1] or self._rawData.canonicalName end

function Language:getDisplayForm return self:getCanonicalName end

function Language:getOtherNames(onlyOtherNames) self:loadInExtraData return require("Module:language-like").getOtherNames(self, onlyOtherNames) end

function Language:getAliases self:loadInExtraData return self._extraData.aliases or {} end

function Language:getVarieties(flatten) self:loadInExtraData return require("Module:language-like").getVarieties(self, flatten) end

function Language:getType return self._rawData.type or "regular" end

function Language:getWikimediaLanguages if not self._wikimediaLanguageObjects then local m_wikimedia_languages = require("Module:wikimedia languages") self._wikimediaLanguageObjects = {} local wikimedia_codes = self._rawData.wikimedia_codes or { self._code } for _, wlangcode in ipairs(wikimedia_codes) do			table.insert(self._wikimediaLanguageObjects, m_wikimedia_languages.getByCode(wlangcode)) end end return self._wikimediaLanguageObjects end

function Language:getWikipediaArticle if self._rawData.wikipedia_article then return self._rawData.wikipedia_article elseif self._wikipedia_article then return self._wikipedia_article elseif self:getWikidataItem and mw.wikibase then self._wikipedia_article = mw.wikibase.sitelink(self:getWikidataItem, 'enwiki') end if not self._wikipedia_article then self._wikipedia_article = mw.ustring.gsub(self:getCategoryName, "Creole language", "Creole") end return self._wikipedia_article end

function Language:makeWikipediaLink return "" .. self:getCanonicalName .. "" end

function Language:getWikidataItem local item = self._rawData[2] if type(item) == "number" then return "Q" .. item else return item end end

function Language:getScripts if not self._scriptObjects then local m_scripts = require("Module:scripts") self._scriptObjects = {} for _, sc in ipairs(self:getScriptCodes) do			table.insert(self._scriptObjects, m_scripts.getByCode(sc)) end end return self._scriptObjects end

function Language:getScriptCodes return self._rawData.scripts or self._rawData[4] or { "None" } end

function Language:getFamily if self._familyObject then return self._familyObject end local family = self._rawData[3] or self._rawData.family if family then self._familyObject = require("Module:families").getByCode(family) end return self._familyObject end

function Language:getAncestors if not self._ancestorObjects then self._ancestorObjects = {} if self._rawData.ancestors then for _, ancestor in ipairs(self._rawData.ancestors) do				table.insert(self._ancestorObjects, export.getByCode(ancestor) or require("Module:etymology languages").getByCode(ancestor)) end else local fam = self:getFamily local protoLang = fam and fam:getProtoLanguage or nil -- For the case where the current language is the proto-language -- of its family, we need to step up a level higher right from the start. if protoLang and protoLang:getCode == self:getCode then fam = fam:getFamily protoLang = fam and fam:getProtoLanguage or nil end while not protoLang and not (not fam or fam:getCode == "qfa-not") do				fam = fam:getFamily protoLang = fam and fam:getProtoLanguage or nil end table.insert(self._ancestorObjects, protoLang) end end return self._ancestorObjects end

local function iterateOverAncestorTree(node, func) for _, ancestor in ipairs(node:getAncestors) do		if ancestor then local ret = func(ancestor) or iterateOverAncestorTree(ancestor, func) if ret then return ret end end end end

function Language:getAncestorChain if not self._ancestorChain then self._ancestorChain = {} local step = #self:getAncestors == 1 and self:getAncestors[1] or nil while step do			table.insert(self._ancestorChain, 1, step) step = #step:getAncestors == 1 and step:getAncestors[1] or nil end end return self._ancestorChain end

function Language:hasAncestor(otherlang) local function compare(ancestor) return ancestor:getCode == otherlang:getCode end return iterateOverAncestorTree(self, compare) or false end

function Language:getCategoryName(nocap) local name = self:getCanonicalName -- If the name already has "language" in it, don't add it. if not name:find("[Ll]anguage$") then name = name .. " language" end if not nocap then name = mw.getContentLanguage:ucfirst(name) end return name end

function Language:makeCategoryLink return "" .. self:getDisplayForm .. "" end

function Language:getStandardCharacters return self._rawData.standardChars end

function Language:makeEntryName(text, sc) text = mw.ustring.match(text, "^[¿¡]?(.-[^%s%p].-)%s*[؟?!;՛՜ ՞ ՟？！︖︕।॥။၊་།]?$") or text text = mw.ustring.gsub(text, "­", "") -- strip soft hyphens local entry_name_data = self._rawData.entry_name if type(entry_name_data) == "table" then text = do_entry_name_or_sort_key_replacements(text, entry_name_data) elseif type(entry_name_data) == "string" then text = require("Module:" .. entry_name_data).makeEntryName(text, self:getCode, sc and sc:getCode) end return text end

-- Return true if the language has display processing enabled, i.e. lang:makeDisplayText -- does non-trivial processing. function Language:hasDisplayProcessing return not not self._rawData.display end

-- Apply display-text replacements to `text`, if any. function Language:makeDisplayText(text) if type(self._rawData.display) == "table" then text = do_entry_name_or_sort_key_replacements(text, self._rawData.display) end return text end

function Language:makeSortKey(name, sc) -- Remove initial hyphens and * local hyphens_regex = "^[-־ـ᠊*]+(.)" name = mw.ustring.gsub(name, hyphens_regex, "%1") -- If there is a language-specific sortkey module, use that if type(self._rawData.sort_key) == "string" then name = require("Module:" .. self._rawData.sort_key).makeSortKey(name, self:getCode, sc and sc:getCode) else if self.dotted_dotless_i then name = name:gsub("I", "ı") end name = mw.ustring.lower(name) -- If there are language-specific rules to generate the key, use those if type(self._rawData.sort_key) == "table" then name = do_entry_name_or_sort_key_replacements(name, self._rawData.sort_key) end if self.dotted_dotless_i then name = name:gsub("i", "İ") end name = mw.ustring.upper(name) end -- Remove parentheses, as long as they are either preceded or followed by something name = mw.ustring.gsub(name, "(.)[]+", "%1") name = mw.ustring.gsub(name, "[]+(.)", "%1") return name end

function Language:overrideManualTranslit if self._rawData.override_translit then return true else return false end end

function Language:transliterate(text, sc, module_override) if not ((module_override or self._rawData.translit_module) and text) then return nil end if module_override then require("Module:debug").track("module_override") end return require("Module:" .. (module_override or self._rawData.translit_module)).tr(text, self:getCode, sc and sc:getCode or nil) end

function Language:hasTranslit return self._rawData.translit_module and true or false end

function Language:link_tr return self._rawData.link_tr and true or false end

function Language:toJSON local entryNamePatterns = nil local entryNameRemoveDiacritics = nil if self._rawData.entry_name then entryNameRemoveDiacritics = self._rawData.entry_name.remove_diacritics if self._rawData.entry_name.from then entryNamePatterns = {} for i, from in ipairs(self._rawData.entry_name.from) do				local to = self._rawData.entry_name.to[i] or "" table.insert(entryNamePatterns, { from = from, to = to }) end end end local ret = { ancestors = self._rawData.ancestors, canonicalName = self:getCanonicalName, categoryName = self:getCategoryName("nocap"), code = self._code, entryNamePatterns = entryNamePatterns, entryNameRemoveDiacritics = entryNameRemoveDiacritics, family = self._rawData[3] or self._rawData.family, otherNames = self:getOtherNames(true), aliases = self:getAliases, varieties = self:getVarieties, scripts = self._rawData.scripts or self._rawData[4], type = self:getType, wikimediaLanguages = self._rawData.wikimedia_codes, wikidataItem = self:getWikidataItem, }	return require("Module:JSON").toJSON(ret) end

-- Do NOT use these methods! -- All uses should be pre-approved on the talk page! function Language:getRawData return self._rawData end

function Language:getRawExtraData self:loadInExtraData return self._extraData end

Language.__index = Language

function export.getDataModuleName(code) if code:find("^%l%l$") then return "languages/data2" elseif code:find("^%l%l%l$") then local prefix = code:sub(1, 1) return "languages/data3/" .. prefix elseif code:find("^[%l-]+$") then return "languages/datax" else return nil end end

function export.getExtraDataModuleName(code) if code:find("^%l%l$") then return "languages/extradata2" elseif code:find("^%l%l%l$") then local prefix = code:sub(1, 1) return "languages/extradata3/" .. prefix elseif code:find("^[%l-]+$") then return "languages/extradatax" else return nil end end

local function getRawLanguageData(code) local modulename = export.getDataModuleName(code) return modulename and mw.loadData("Module:" .. modulename)[code] or nil end

local function getRawExtraLanguageData(code) local modulename = export.getExtraDataModuleName(code) return modulename and mw.loadData("Module:" .. modulename)[code] or nil end

function Language:loadInExtraData if not self._extraData then -- load extra data from module and assign to meta table -- use empty table as a fallback if extra data is nil local meta = getmetatable(self) meta._extraData = getRawExtraLanguageData(self._code) or {} setmetatable(self, meta) end end

function export.makeObject(code, data) if data and data.deprecated then require("Module:debug").track { "languages/deprecated", "languages/deprecated/" .. code }	end return data and setmetatable({ _rawData = data, _code = code }, Language) or nil end

function export.getByCode(code, paramForError, allowEtymLang, allowFamily) if type(code) ~= "string" then error("The function getByCode expects a string as its first argument, but received " .. (code == nil and "nil" or "a " .. type(code)) .. ".") end local retval = export.makeObject(code, getRawLanguageData(code)) if not retval and allowEtymLang then retval = require("Module:etymology languages").getByCode(code) end if not retval and allowFamily then retval = require("Module:families").getByCode(code) end if not retval and paramForError then require("Module:languages/errorGetBy").code(code, paramForError, allowEtymLang, allowFamily) end return retval end

function export.getByName(name, errorIfInvalid) local byName = mw.loadData("Module:languages/by name") local code = byName.all and byName.all[name] or byName[name] if not code then if errorIfInvalid then error("The language name \"" .. name .. "\" is not valid. See List of languages.") else return nil end end return export.makeObject(code, getRawLanguageData(code)) end

function export.getByCanonicalName(name, errorIfInvalid, allowEtymLang, allowFamily) local byName = mw.loadData("Module:languages/canonical names") local code = byName and byName[name]

local retval = code and export.makeObject(code, getRawLanguageData(code)) or nil if not retval and allowEtymLang then retval = require("Module:etymology languages").getByCanonicalName(name) end if not retval and allowFamily then local famname = name:match("^(.*) languages$") famname = famname or name retval = require("Module:families").getByCanonicalName(famname) end if not retval and errorIfInvalid then require("Module:languages/errorGetBy").canonicalName(name, allowEtymLang, allowFamily) end return retval end

--	If language is an etymology language, iterates through parent languages		until it finds a non-etymology language. function export.getNonEtymological(lang) while lang:getType == "etymology language" do		local parentCode = lang:getParentCode lang = export.getByCode(parentCode) or require("Module:etymology languages").getByCode(parentCode) or require("Module:families").getByCode(parentCode) end return lang end

-- for backwards compatibility only; modules should require the /error themselves function export.err(lang_code, param, code_desc, template_tag, not_real_lang) return require("Module:languages/error")(lang_code, param, code_desc, template_tag, not_real_lang) end

return export