Module:Autotranslate

-- \/  | ___   __| |_   _| | ___ _   / \  _   _| |_ ___ | |_ _ __ __ _ _ __  ___| | __ _| |_ ___  | |\/| |/ _ \ / _` | | | | |/ _ (_) / _ \| | | | __/ _ \| __| '__/ _` | '_ \/ __| |/ _` | __/ _ \ | |  | | (_) | (_| | |_| | |  __/_ / ___ \ |_| | || (_) | |_| | | (_| | | | \__ \ | (_| | ||  __/ |_|  |_|\___/ \__,_|\__,_|_|\___(_)_/   \_\__,_|\__\___/ \__|_|  \__,_|_| |_|___/_|\__,_|\__\___|

-- local function to help normalize input arguments local function normalize_input_args(input_args, output_args) for name, value in pairs( input_args ) do 		if value ~= '' then -- nuke empty strings if type(name)=='string' then name=string.lower(name) end -- convert to lower case output_args[name] = value end end return output_args end

-- initialize object to be returned local p = {}

--[[ autotranslate This function is the core part of the Autotranslate template. Usage from a template:

Parameters: frame.args.base - base page name frame.args.lang - desired language (often user's native language)

Error Handling:

]] function p.autotranslate(frame)

-- switch to lowercase parameters to make them case independent local args = {} args = normalize_input_args(frame:getParent.args, args) args = normalize_input_args(frame.args, args)

-- get language fallback list if not args.lang or not mw.language.isSupportedLanguage(args.lang) then args.lang = frame:callParserFunction( "int", "lang" )          -- get user's chosen language end local langList = mw.language.getFallbacksFor(args.lang) table.insert(langList,1,args.lang)

-- find base page local base = args.base args.base = nil assert(base and #base>0, 'Base page not provided for autotranslate' ) if not mw.ustring.find(base,':') then  -- if base page does not indicate namespace base = 'Template:' .. base         -- than assume it is a template end -- find base template language subpage local page = args.default -- default page if provided or nil otherwise for _, language in ipairs(langList) do if mw.title.new(base .. '/' .. language).exists then page = base .. '/' .. language -- returns only the page break end end assert(page, string.format('No fallback page found for autotranslate (base=%s, lang=%s)', base, args.lang)) -- Transclude with template arguments the same as the ones passed to  template. return frame:expandTemplate{ title = page, args = args} end

return p