Module:Category main article

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This documentation is transcluded from Module:Category main article/doc. Changes can be proposed in the talk page.

Module:Category main article is imported from main article Module:Category main article on Wikipedia.

This module is imported from the English Wikipedia. Although the visual appearance might be different, the functionality is identical. Please refer to the Wikipedia page for detailed documentation.

Module:Category main article's function catMain is invoked by Template:Category main article.

Module:Category main article requires 5 modules: Module:Arguments, Module:Format link, Module:Hatnote, Module:TableTools, and Module:Yesno.

Function list
L 11 — p.catMain L 23 — p._catMain

This module produces hatnote saying "The main article for this category is x." It implements the {{Category main article}} template.

Use from wikitext

This module should usually be used via the {{Category main article}} template. However, it can also be used from #invoke with the syntax {{#invoke:Category main article|catMain|parameters}}. Please see the {{Category main article}} template documentation for available parameters.

---

-- This module implements {{cat main}}.

local mHatnote = require('Module:Hatnote')
local mFormatLink = require('Module:Format link')
local yesno = require('Module:Yesno')
local mTableTools -- lazily initialise
local mArguments -- lazily initialise

local p = {}

function p.catMain(frame)
	mTableTools = require('Module:TableTools')
	mArguments = require('Module:Arguments')
	local args = mArguments.getArgs(frame, {wrappers = 'Template:Category main article'})
	local pages = mTableTools.compressSparseArray(args)
	local options = {
		article = args.article,
		selfref = args.selfref
	}
	return p._catMain(options, unpack(pages))
end

function p._catMain(options, ...)
	options = options or {}

	-- Get the links table.
	local links = mFormatLink.formatPages({}, {...})
	if not links[1] then
		local page = mw.title.getCurrentTitle().text
		links[1] = mFormatLink._formatLink{link = page}
	end
	for i, link in ipairs(links) do
		links[i] = string.format("'''%s'''", link)
	end

	-- Get the pagetype.
	local pages = {...}
	local pagetype 
	
	if options.article ~= nil then
		pagetype = yesno(options.article) ~= false and 'article' or 'page'
	elseif pages and pages[1] then
		local page = pages[1]:gsub("|.*","")
		pagetype = mw.title.new(page).namespace == 0 and "article" or "page"
	else
		pagetype = "article"
	end

	-- Work out whether we need to be singular or plural.
	local stringToFormat
	if #links > 1 then
		stringToFormat = 'The main %ss for this [[Help:Categories|category]] are %s.'
	else
		stringToFormat = 'The main %s for this [[Help:Categories|category]] is %s.'
	end

	-- Get the text.
	local text = string.format(
		stringToFormat,
		pagetype,
		mw.text.listToText(links)
	)
	
	-- Pass it through to Module:Hatnote.
	local hnOptions = {
		selfref = options.selfref,
		icon = 'WikimediaUI-Article-ltr.svg'
	}

	return mHatnote._hatnote(text, hnOptions)
end

return p