return function (title, cats)
local suffix = title.fullText:match("^Module:number list/data/(.+)$")
local lang_code = suffix:match "^([^/]+)/sandbox$" or suffix
local lang = require("Module:languages").getByCode(lang_code)
local function page_exists(title)
local success, title_obj = pcall(mw.title.new, title)
return success and title_obj.exists
end
if lang then
local canonical_name = lang:getCanonicalName()
local language_data_modules = "Modul data " .. canonical_name
cats:insert((page_exists("Kategori:" .. language_data_modules)
and language_data_modules or "Modul bahasa " .. canonical_name)
.. "|number list")
cats:insert("Number data modules|" .. canonical_name)
return ("This module contains data on various types of numbers in %s.\n%s")
:format(lang:makeCategoryLink(), require("Module:number list/show").table() or '')
end
end