Module:Main

--[[ -- This module produces a link to a main article or articles. It implements the -- template . -- -- If the module is used in category or category talk space, it produces "The -- main article for this category is xxx". Otherwise, it produces -- "Main article: xxx". --]]

local mHatnote = require('Module:Hatnote') local mTableTools -- lazily initialise local mArguments -- lazily initialise

local p = {}

function p.main(frame) mTableTools = require('Module:TableTools') mArguments = require('Module:Arguments') local args = mArguments.getArgs(frame, {parentOnly = true}) local pages = {} for k, v in pairs(args) do if type(k) == 'number' then local display = args['l' .. tostring(k)] local page = {v, display} pages[k] = page end end pages = mTableTools.compressSparseArray(pages) local options = { selfref = args.selfref } return p._main(options, unpack(pages)) end

function p._main(options, ...) -- Get the list of pages. If no first page was specified we use the current -- page name. local pages = {...} local currentTitle = mw.title.getCurrentTitle() local firstPageTable = pages[1] local firstPage if firstPageTable then firstPage = firstPageTable[1] else firstPage = currentTitle.text firstPageTable = {firstPage} pages[1] = firstPageTable end

-- Find the pagetype. local firstPageNs = mHatnote.findNamespaceId(firstPage) local pagetype = firstPageNs == 0 and 'article' or 'page'

-- Make the formatted link text local links = mHatnote.formatPageTables(unpack(pages)) links = mw.text.listToText(links)

-- Build the text. local isPlural = #pages > 1 local currentNs = currentTitle.namespace local isCategoryNamespace = currentNs - currentNs % 2 == 14 local stringToFormat if isCategoryNamespace then if isPlural then stringToFormat = 'The main %ss for this' .. ' category are %s' else stringToFormat = 'The main %s for this' .. ' category is %s' end else if isPlural then stringToFormat = 'Main %ss: %s' else stringToFormat = 'Main %s: %s' end end local text = string.format(stringToFormat, pagetype, links)

-- Process the options and pass the text to the _rellink function in -- Module:Hatnote. options = options or {} local hnOptions = { extraclasses = 'relarticle mainarticle', selfref = options.selfref } return mHatnote._hatnote(text, hnOptions) end

return p