Module:Redirect template

require('Module:No globals') local p = {} -- key is beginning of arg name. value is table with namespace number and link -- alternatively, a function taking the namespace number and returning a validity -- can be used local namespaceCategories = { all = { function return true end }, main = { 0, 'main' }, help = { 12, 'help' }, portal = { 100, 'portal' }, talk = { function(n) return n > 0 and n%2 == 1 end, 'talk' }, template = { 10, 'template' }, wikipedia = { 4, 'Wikipedia project' }, category = { 14, 'category' }, user = { 2, 'user' }, } -- remove whitespaces from beginning and end of args local function valueFunc(key, val) if type(val) == 'string' then val = val:match('^%s*(.-)%s*$') if val == '' then return nil end end return val end local function getPrettyName(args) for k in pairs(namespaceCategories) do       if args[k .. ' category'] then return string.format("%s: ", args[k .. ' category'], args.name) end end return string.format("%s: ", args.name) end function p.main(frame) local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:Redirect template', valueFunc = valueFunc}) local namespace = mw.title.getCurrentTitle.namespace --- XXX: this is a HORRIBLE HACK. kill it with fire as soon as https://bugzilla.wikimedia.org/show_bug.cgi?id=12974 is fixed local beCompatibleWithBug12974 = args.info and (args.info:find('^[:;#*]', 1) == 1 or args.info:find('{|', 1, true) == 1) and '\n' or ' ' local content = string.format('\n \n*%sThis is a redirect%s%s.%s%s\n ',       args.id and ('rcat-' .. string.gsub(args.id, ' ', '_')) or ,       args.name and getPrettyName(args) or ,        args.from and (' from ' .. args.from) or '',       args.to and (' to ' .. args.to) or ,       args.info and beCompatibleWithBug12974 or ,        args.info or ''    ) for k,v in pairs(namespaceCategories) do       if args[k .. ' category'] then if type(v[1]) == 'function' and v[1](namespace) or v[1] == namespace then content = content .. string.format('', args[k .. ' category']) elseif args['other category'] then content = content .. string.format('', args['other category']) else content = content .. frame:expandTemplate{title = 'Incorrect redirect template', args = {v[2]}} end end end if namespace == 0 then local yesno = require('Module:Yesno') if yesno(args.printworthy) == true then return content .. ''       elseif yesno(args.printworthy) == false then return content .. ''       end end return content end return p