Module:Redirect hatnote

-- -- This module produces a "redirect" hatnote. It looks like this: -- '"X" redirects here. For other uses, see Y.' -- It implements the template. --

local mHatnote = require('Module:Hatnote') local libraryUtil = require('libraryUtil') local checkType = libraryUtil.checkType

local p = {}

function p.redirect(frame) -- Get the args table and work out the maximum arg key. local origArgs = frame:getParent.args local args = {} local maxArg = 0 for k, v in pairs(origArgs) do		if type(k) == 'number' and k > maxArg then maxArg = k		end v = v:match('^%s*(.-)%s*$') -- Trim whitespace if v ~= '' then args[k] = v		end end

-- Return an error if no redirect was specified. local redirect = args[1] if not redirect then return mHatnote.makeWikitextError(			'no redirect specified',			'Template:Redirect#Errors',			args.category		) end

-- Create the data table. local data = {} local iArg = 1 local iData = 1 while iArg < maxArg do		iArg = iArg + 1 local useTable = data[iData] or {} local use, page if iArg % 2 == 0 then use = args[iArg] if use ~= 'and' then useTable.use = use iData = iData + 1 end else page = args[iArg] useTable[#useTable + 1] = page end end

-- Create the options table. local options = {} options.selfref = args.selfref return p._redirect(redirect, data, options) end

function p._redirect(redirect, data, options) checkType('_redirect', 1, redirect, 'string') checkType('_redirect', 2, data, 'table', true) checkType('_redirect', 3, options, 'table', true)

-- Generate the text. local text = {} -- Redirect text. text[#text + 1] = '"' .. redirect .. '" redirects here.' -- The first table, a special case. local useTable1 = data[1] or {} local use1 = useTable1.use or 'other uses' useTable1[1] = useTable1[1] or redirect .. ' (disambiguation)' local pages1 = mHatnote.formatPages(unpack(useTable1)) pages1 = mw.text.listToText(pages1) text[#text + 1] = string.format(		'For %s, see %s.',		use1,		pages1	) -- The other tables. if use1 ~= 'other uses' then for i = 2, #data do			local useTable = data[i] or {} local origUse = useTable.use if not origUse then break end local use if tonumber(origUse) == 1 then use = 'other uses' else use = origUse end useTable[1] = useTable[1] or origUse .. ' (disambiguation)' local pages = mHatnote.formatPages(unpack(useTable)) pages = mw.text.listToText(pages) text[#text + 1] = string.format(				'For %s, see %s.',				use,				pages			) if use == 'other uses' then -- "Other uses" text must come last, or it doesn't make sense -- grammatically. break end end end text = table.concat(text, ' ') -- Generate the options to pass to Module:Hatnote. options = options or {} local mhOptions = {} mhOptions.selfref = options.selfref

-- Find whether to add the tracking category. -- We add the category if: -- a) redirect isn't any of the keywords 'REDIRECT', 'REDIRECT1',	-- 'REDIRECT2', ..., or 'TERM'.	-- b) we are in the main namespace. -- c) the redirect title does not exist.	local category	if not redirect:find('^REDIRECT%d*$') and redirect ~= 'TERM' then		local currentTitle = mw.title.getCurrentTitle		if currentTitle.namespace == 0 then			local success, redirectTitle = pcall(mw.title.new, redirect)			if success and not redirectTitle.exists then				category = 			end		end	end	category = category or 

return mHatnote._hatnote(text, mhOptions) .. category end return p