User:Pd4u/doc10

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Module:Documentation

[edit]
-- Get required modules.
local getArgs = require('Module:Arguments').getArgs
local messageBox = require('Module:Message box')

-- Get the config table.
local cfg = mw.loadData('Module:Documentation/config')

local p = {}

-- Often-used functions.
local ugsub = mw.ustring.gsub

----------------------------------------------------------------------------
-- Helper functions
--
-- These are defined as local functions, but are made available in the p
-- table for testing purposes.
----------------------------------------------------------------------------

local function message(cfgKey, valArray, expectType)
	--[[
	-- Gets a message from the cfg table and formats it if appropriate.
	-- The function raises an error if the value from the cfg table is not
	-- of the type expectType. The default type for expectType is 'string'.
	-- If the table valArray is present, strings such as $1, $2 etc. in the
	-- message are substituted with values from the table keys [1], [2] etc.
	-- For example, if the message "foo-message" had the value 'Foo $2 bar $1.',
	-- message('foo-message', {'baz', 'qux'}) would return "Foo qux bar baz."
	--]]
	local msg = cfg[cfgKey]
	expectType = expectType or 'string'
	if type(msg) ~= expectType then
		error('message: type error in message cfg.' .. cfgKey .. ' (' .. expectType .. ' expected, got ' .. type(msg) .. ')', 2)
	end
	if not valArray then
		return msg
	end

	local function getMessageVal(match)
		match = tonumber(match)
		return valArray[match] or error('message: no value found for key $' .. match .. ' in message cfg.' .. cfgKey, 4)
	end

	local ret = ugsub(msg, '$([1-9][0-9]*)', getMessageVal)
	return ret
end

p.message = message

local function makeWikilink(page, display)
	if display then
		return mw.ustring.format('[[%s|%s]]', page, display)
	else
		return mw.ustring.format('[[%s]]', page)
	end
end

p.makeWikilink = makeWikilink

local function makeCategoryLink(cat, sort)
	local catns = mw.site.namespaces[14].name
	return makeWikilink(catns .. ':' .. cat, sort)
end

p.makeCategoryLink = makeCategoryLink

local function makeUrlLink(url, display)
	return mw.ustring.format('[%s %s]', url, display)
end

p.makeUrlLink = makeUrlLink

local function makeToolbar(...)
	local ret = {}
	local lim = select('#', ...)
	if lim < 1 then
		return nil
	end
	for i = 1, lim do
		ret[#ret + 1] = select(i, ...)
	end
	return '<small style="font-style: normal;">(' .. table.concat(ret, ' &#124; ') .. ')</small>'
end	

p.makeToolbar = makeToolbar

----------------------------------------------------------------------------
-- Argument processing
----------------------------------------------------------------------------

local function makeInvokeFunc(funcName)
	return function (frame)
		local args = getArgs(frame, {
			valueFunc = function (key, value)
				if type(value) == 'string' then
					value = value:match('^%s*(.-)%s*$') -- Remove whitespace.
					if key == 'heading' or value ~= '' then
						return value
					else
						return nil
					end
				else
					return value
				end
			end
		})
		return p[funcName](args)
	end
end

----------------------------------------------------------------------------
-- Main function
----------------------------------------------------------------------------

p.main = makeInvokeFunc('_main')

function p._main(args)
	--[[
	-- This function defines logic flow for the module.
	-- @args - table of arguments passed by the user
	-- 
	-- Messages:
	-- 'main-div-id' --> 'template-documentation'
	-- 'main-div-classes' --> 'template-documentation iezoomfix'
	--]]
	local env = p.getEnvironment(args)
	local root = mw.html.create()
	root
		:wikitext(p.protectionTemplate(env))
		:wikitext(p.sandboxNotice(args, env))
		 -- This div tag is from documentation/start box, but moving it here
		 -- so that we don't have to worry about unclosed tags.
		:tag('div')
			:attr('id', message('main-div-id'))
			:addClass(message('main-div-classes'))
			:newline()
			:wikitext(p._startBox(args, env))
			:wikitext(p._content(args, env))
			:tag('div')
				:css('clear', 'both') -- So right or left floating items don't stick out of the doc box.
				:newline()
				:done()
			:done()
		:wikitext(p._endBox(args, env))
		:wikitext(p.addTrackingCategories(env))
	return tostring(root)
end

----------------------------------------------------------------------------
-- Environment settings
----------------------------------------------------------------------------

function p.getEnvironment(args)
	--[[
	-- Returns a table with information about the environment, including title objects and other namespace- or
	-- path-related data.
	-- @args - table of arguments passed by the user
	--
	-- Title objects include:
	-- env.title - the page we are making documentation for (usually the current title)
	-- env.templateTitle - the template (or module, file, etc.)
	-- env.docTitle - the /doc subpage.
	-- env.sandboxTitle - the /sandbox subpage.
	-- env.testcasesTitle - the /testcases subpage.
	-- env.printTitle - the print version of the template, located at the /Print subpage.
	--
	-- Data includes:
	-- env.protectionLevels - the protection levels table of the title object.
	-- env.subjectSpace - the number of the title's subject namespace.
	-- env.docSpace - the number of the namespace the title puts its documentation in.
	-- env.docpageBase - the text of the base page of the /doc, /sandbox and /testcases pages, with namespace.
	-- env.compareUrl - URL of the Special:ComparePages page comparing the sandbox with the template.
	-- 
	-- All table lookups are passed through pcall so that errors are caught. If an error occurs, the value
	-- returned will be nil.
	--]]
	
	local env, envFuncs = {}, {}

	-- Set up the metatable. If triggered we call the corresponding function in the envFuncs table. The value
	-- returned by that function is memoized in the env table so that we don't call any of the functions
	-- more than once. (Nils won't be memoized.)
	setmetatable(env, {
		__index = function (t, key)
			local envFunc = envFuncs[key]
			if envFunc then
				local success, val = pcall(envFunc)
				if success then
					env[key] = val -- Memoise the value.
					return val
				end
			end
			return nil
		end
	})	

	function envFuncs.title()
		-- The title object for the current page, or a test page passed with args.page.
		local title
		local titleArg = args.page
		if titleArg then
			title = mw.title.new(titleArg)
		else
			title = mw.title.getCurrentTitle()
		end
		return title
	end

	function envFuncs.templateTitle()
		--[[
		-- The template (or module, etc.) title object.
		-- Messages:
		-- 'sandbox-subpage' --> 'sandbox'
		-- 'testcases-subpage' --> 'testcases'
		--]]
		local subjectSpace = env.subjectSpace
		local title = env.title
		local subpage = title.subpageText
		if subpage == message('sandbox-subpage') or subpage == message('testcases-subpage') then
			return mw.title.makeTitle(subjectSpace, title.baseText)
		else
			return mw.title.makeTitle(subjectSpace, title.text)
		end
	end

	function envFuncs.docTitle()
		--[[
		-- Title object of the /doc subpage.
		-- Messages:
		-- 'doc-subpage' --> 'doc'
		--]]
		local title = env.title
		local docname = args[1] -- User-specified doc page.
		local docpage
		if docname then
			docpage = docname
		else
			docpage = env.docpageBase .. '/' .. message('doc-subpage')
		end
		return mw.title.new(docpage)
	end
	
	function envFuncs.sandboxTitle()
		--[[
		-- Title object for the /sandbox subpage.
		-- Messages:
		-- 'sandbox-subpage' --> 'sandbox'
		--]]
		return mw.title.new(env.docpageBase .. '/' .. message('sandbox-subpage'))
	end
	
	function envFuncs.testcasesTitle()
		--[[
		-- Title object for the /testcases subpage.
		-- Messages:
		-- 'testcases-subpage' --> 'testcases'
		--]]
		return mw.title.new(env.docpageBase .. '/' .. message('testcases-subpage'))
	end
	
	function envFuncs.printTitle()
		--[[
		-- Title object for the /Print subpage.
		-- Messages:
		-- 'print-subpage' --> 'Print'
		--]]
		return env.templateTitle:subPageTitle(message('print-subpage'))
	end

	function envFuncs.protectionLevels()
		-- The protection levels table of the title object.
		return env.title.protectionLevels
	end

	function envFuncs.subjectSpace()
		-- The subject namespace number.
		return mw.site.namespaces[env.title.namespace].subject.id
	end

	function envFuncs.docSpace()
		-- The documentation namespace number. For most namespaces this is the same as the
		-- subject namespace. However, pages in the Article, File, MediaWiki or Category
		-- namespaces must have their /doc, /sandbox and /testcases pages in talk space.
		local subjectSpace = env.subjectSpace
		if subjectSpace == 0 or subjectSpace == 6 or subjectSpace == 8 or subjectSpace == 14 then
			return subjectSpace + 1
		else
			return subjectSpace
		end
	end

	function envFuncs.docpageBase()
		-- The base page of the /doc, /sandbox, and /testcases subpages.
		-- For some namespaces this is the talk page, rather than the template page.
		local templateTitle = env.templateTitle
		local docSpace = env.docSpace
		local docSpaceText = mw.site.namespaces[docSpace].name
		-- Assemble the link. docSpace is never the main namespace, so we can hardcode the colon.
		return docSpaceText .. ':' .. templateTitle.text
	end
	
	function envFuncs.compareUrl()
		-- Diff link between the sandbox and the main template using [[Special:ComparePages]].
		local templateTitle = env.templateTitle
		local sandboxTitle = env.sandboxTitle
		if templateTitle.exists and sandboxTitle.exists then
			local compareUrl = mw.uri.fullUrl(
				'Special:ComparePages',
				{page1 = templateTitle.prefixedText, page2 = sandboxTitle.prefixedText}
			)
			return tostring(compareUrl)
		else
			return nil
		end
	end		

	return env
end	

----------------------------------------------------------------------------
-- Auxiliary templates
----------------------------------------------------------------------------

function p.sandboxNotice(args, env)
	--[=[
	-- Generates a sandbox notice for display above sandbox pages.
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- 
	-- Messages:
	-- 'sandbox-notice-image' --> '[[Image:Sandbox.svg|50px|alt=|link=]]'
	-- 'sandbox-notice-blurb' --> 'This is the $1 for $2.'
	-- 'sandbox-notice-diff-blurb' --> 'This is the $1 for $2 ($3).'
	-- 'sandbox-notice-pagetype-template' --> '[[Wikipedia:Template test cases|template sandbox]] page'
	-- 'sandbox-notice-pagetype-module' --> '[[Wikipedia:Template test cases|module sandbox]] page'
	-- 'sandbox-notice-pagetype-other' --> 'sandbox page'
	-- 'sandbox-notice-compare-link-display' --> 'diff'
	-- 'sandbox-notice-testcases-blurb' --> 'See also the companion subpage for $1.'
	-- 'sandbox-notice-testcases-link-display' --> 'test cases'
	-- 'sandbox-category' --> 'Template sandboxes'
	--]=]
	local title = env.title
	local sandboxTitle = env.sandboxTitle
	local templateTitle = env.templateTitle
	local subjectSpace = env.subjectSpace
	if not (subjectSpace and title and sandboxTitle and templateTitle and mw.title.equals(title, sandboxTitle)) then
		return nil
	end
	-- Build the table of arguments to pass to '"`UNIQ--templatestyles-00000000-QINU`"'<table class="plainlinks messagebox mbox-notice" role="presentation"><tr><td class="mbox-image">[[File:Commons-emblem-notice.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table>. We need just two fields, "image" and "text".
	local omargs = {}
	omargs.image = message('sandbox-notice-image')
	-- Get the text. We start with the opening blurb, which is something like
	-- "This is the template sandbox for [[Template:Foo]] (diff)."
	local text = ''
	local frame = mw.getCurrentFrame()
	local isPreviewing = frame:preprocess('-') == '' -- True if the page is being previewed.
	local pagetype
	if subjectSpace == 10 then
		pagetype = message('sandbox-notice-pagetype-template')
	elseif subjectSpace == 828 then
		pagetype = message('sandbox-notice-pagetype-module')
	else
		pagetype = message('sandbox-notice-pagetype-other')
	end
	local templateLink = makeWikilink(templateTitle.prefixedText)
	local compareUrl = env.compareUrl
	if isPreviewing or not compareUrl then
		text = text .. message('sandbox-notice-blurb', {pagetype, templateLink})
	else
		local compareDisplay = message('sandbox-notice-compare-link-display')
		local compareLink = makeUrlLink(compareUrl, compareDisplay)
		text = text .. message('sandbox-notice-diff-blurb', {pagetype, templateLink, compareLink})
	end
	-- Get the test cases page blurb if the page exists. This is something like
	-- "See also the companion subpage for [[Template:Foo/testcases|test cases]]."
	local testcasesTitle = env.testcasesTitle
	if testcasesTitle and testcasesTitle.exists then
		if testcasesTitle.namespace == mw.site.namespaces.Module.id then
			local testcasesLinkDisplay = message('sandbox-notice-testcases-link-display')
			local testcasesRunLinkDisplay = message('sandbox-notice-testcases-run-link-display')
			local testcasesLink = makeWikilink(testcasesTitle.prefixedText, testcasesLinkDisplay)
			local testcasesRunLink = makeWikilink(testcasesTitle.talkPageTitle.prefixedText, testcasesRunLinkDisplay)
			text = text .. '<br />' .. message('sandbox-notice-testcases-run-blurb', {testcasesLink, testcasesRunLink})
		else
			local testcasesLinkDisplay = message('sandbox-notice-testcases-link-display')
			local testcasesLink = makeWikilink(testcasesTitle.prefixedText, testcasesLinkDisplay)
			text = text .. '<br />' .. message('sandbox-notice-testcases-blurb', {testcasesLink})
		end
	end
	-- Add the sandbox to the sandbox category.
	text = text .. makeCategoryLink(message('sandbox-category'))
	omargs.text = text
	local ret = '<div style="clear: both;"></div>'
	ret = ret .. messageBox.main('Mbox', omargs)
	return ret
end

function p.protectionTemplate(env)
	-- Generates the padlock icon in the top right.
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- Messages:
	-- 'protection-template' --> 'pp-template'
	-- 'protection-template-args' --> {docusage = 'yes'}
	local protectionLevels, mProtectionBanner
	local title = env.title
	if title.namespace ~= 10 and title.namespace ~= 828 then
		-- Don't display the protection template if we are not in the template or module namespaces.
		return nil
	end
	protectionLevels = env.protectionLevels
	if not protectionLevels then
		return nil
	end
	local editProt = protectionLevels.edit and protectionLevels.edit[1]
	local moveProt = protectionLevels.move and protectionLevels.move[1]
	if editProt then
		-- The page is edit-protected.
		mProtectionBanner = require('Module:Protection banner')
		local reason = message('protection-reason-edit')
		return mProtectionBanner._main{reason, small = true}
	elseif moveProt and moveProt ~= 'autoconfirmed' then
		-- The page is move-protected but not edit-protected. Exclude move
		-- protection with the level "autoconfirmed", as this is equivalent to
		-- no move protection at all.
		mProtectionBanner = require('Module:Protection banner')
		return mProtectionBanner._main{action = 'move', small = true}
	else
		return nil
	end
end

----------------------------------------------------------------------------
-- Start box
----------------------------------------------------------------------------

p.startBox = makeInvokeFunc('_startBox')

function p._startBox(args, env)
	--[[
	-- This function generates the start box.
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- 
	-- The actual work is done by p.makeStartBoxLinksData and p.renderStartBoxLinks which make
	-- the [view] [edit] [history] [purge] links, and by p.makeStartBoxData and p.renderStartBox
	-- which generate the box HTML.
	--]]
	env = env or p.getEnvironment(args)
	local links
	local content = args.content
	if not content then
		-- No need to include the links if the documentation is on the template page itself.
		local linksData = p.makeStartBoxLinksData(args, env)
		if linksData then
			links = p.renderStartBoxLinks(linksData)
		end
	end
	-- Generate the start box html.
	local data = p.makeStartBoxData(args, env, links)
	if data then
		return p.renderStartBox(data)
	else
		-- User specified no heading.
		return nil
	end
end

function p.makeStartBoxLinksData(args, env)
	--[[
	-- Does initial processing of data to make the [view] [edit] [history] [purge] links.
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- 
	-- Messages:
	-- 'view-link-display' --> 'view'
	-- 'edit-link-display' --> 'edit'
	-- 'history-link-display' --> 'history'
	-- 'purge-link-display' --> 'purge'
	-- 'file-docpage-preload' --> 'Template:Documentation/preload-filespace'
	-- 'module-preload' --> 'Template:Documentation/preload-module-doc'
	-- 'docpage-preload' --> 'Template:Documentation/preload'
	-- 'create-link-display' --> 'create'
	--]]
	local subjectSpace = env.subjectSpace
	local title = env.title
	local docTitle = env.docTitle
	if not title or not docTitle then
		return nil
	end

	local data = {}
	data.title = title
	data.docTitle = docTitle
	-- View, display, edit, and purge links if /doc exists.
	data.viewLinkDisplay = message('view-link-display')
	data.editLinkDisplay = message('edit-link-display')
	data.historyLinkDisplay = message('history-link-display')
	data.purgeLinkDisplay = message('purge-link-display')
	-- Create link if /doc doesn't exist.
	local preload = args.preload
	if not preload then
		if subjectSpace == 6 then -- File namespace
			preload = message('file-docpage-preload')
		elseif subjectSpace == 828 then -- Module namespace
			preload = message('module-preload')
		else
			preload = message('docpage-preload')
		end
	end
	data.preload = preload
	data.createLinkDisplay = message('create-link-display')
	return data
end

function p.renderStartBoxLinks(data)
	--[[
	-- Generates the [view][edit][history][purge] or [create] links from the data table.
	-- @data - a table of data generated by p.makeStartBoxLinksData
	--]]
	
	local function escapeBrackets(s)
		-- Escapes square brackets with HTML entities.
		s = s:gsub('%[', '&#91;') -- Replace square brackets with HTML entities.
		s = s:gsub('%]', '&#93;')
		return s
	end

	local ret
	local docTitle = data.docTitle
	local title = data.title
	if docTitle.exists then
		local viewLink = makeWikilink(docTitle.prefixedText, data.viewLinkDisplay)
		local editLink = makeUrlLink(docTitle:fullUrl{action = 'edit'}, data.editLinkDisplay)
		local historyLink = makeUrlLink(docTitle:fullUrl{action = 'history'}, data.historyLinkDisplay)
		local purgeLink = makeUrlLink(title:fullUrl{action = 'purge'}, data.purgeLinkDisplay)
		ret = '[%s] [%s] [%s] [%s]'
		ret = escapeBrackets(ret)
		ret = mw.ustring.format(ret, viewLink, editLink, historyLink, purgeLink)
	else
		local createLink = makeUrlLink(docTitle:fullUrl{action = 'edit', preload = data.preload}, data.createLinkDisplay)
		ret = '[%s]'
		ret = escapeBrackets(ret)
		ret = mw.ustring.format(ret, createLink)
	end
	return ret
end

function p.makeStartBoxData(args, env, links)
	--[=[
	-- Does initial processing of data to pass to the start-box render function, p.renderStartBox.
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- @links - a string containing the [view][edit][history][purge] links - could be nil if there's an error.
	--
	-- Messages:
	-- 'documentation-icon-wikitext' --> '[[File:Test Template Info-Icon - Version (2).svg|50px|link=|alt=Documentation icon]]'
	-- 'template-namespace-heading' --> 'Template documentation'
	-- 'module-namespace-heading' --> 'Module documentation'
	-- 'file-namespace-heading' --> 'Summary'
	-- 'other-namespaces-heading' --> 'Documentation'
	-- 'start-box-linkclasses' --> 'mw-editsection-like plainlinks'
	-- 'start-box-link-id' --> 'doc_editlinks'
	-- 'testcases-create-link-display' --> 'create'
	--]=]
	local subjectSpace = env.subjectSpace
	if not subjectSpace then
		-- Default to an "other namespaces" namespace, so that we get at least some output
		-- if an error occurs.
		subjectSpace = 2
	end
	local data = {}
	
	-- Heading
	local heading = args.heading -- Blank values are not removed.
	if heading == '' then
		-- Don't display the start box if the heading arg is defined but blank.
		return nil
	end
	if heading then
		data.heading = heading
	elseif subjectSpace == 10 then -- Template namespace
		data.heading = message('documentation-icon-wikitext') .. ' ' .. message('template-namespace-heading')
	elseif subjectSpace == 828 then -- Module namespace
		data.heading = message('documentation-icon-wikitext') .. ' ' .. message('module-namespace-heading')
	elseif subjectSpace == 6 then -- File namespace
		data.heading = message('file-namespace-heading')
	else
		data.heading = message('other-namespaces-heading')
	end
	
	-- Heading CSS
	local headingStyle = args['heading-style']
	if headingStyle then
		data.headingStyleText = headingStyle
	elseif subjectSpace == 10 then
		-- We are in the template or template talk namespaces.
		data.headingFontWeight = 'bold'
		data.headingFontSize = '125%'
	else
		data.headingFontSize = '150%'
	end
	
	-- Data for the [view][edit][history][purge] or [create] links.
	if links then
		data.linksClass = message('start-box-linkclasses')
		data.linksId = message('start-box-link-id')
		data.links = links
	end
	
	return data
end

function p.renderStartBox(data)
	-- Renders the start box html.
	-- @data - a table of data generated by p.makeStartBoxData.
	local sbox = mw.html.create('div')
	sbox
		:css('padding-bottom', '3px')
		:css('border-bottom', '1px solid #aaa')
		:css('margin-bottom', '1ex')
		:newline()
		:tag('span')
			:cssText(data.headingStyleText)
			:css('font-weight', data.headingFontWeight)
			:css('font-size', data.headingFontSize)
			:wikitext(data.heading)
	local links = data.links
	if links then
		sbox:tag('span')
			:addClass(data.linksClass)
			:attr('id', data.linksId)
			:wikitext(links)
	end
	return tostring(sbox)
end

----------------------------------------------------------------------------
-- Documentation content
----------------------------------------------------------------------------

p.content = makeInvokeFunc('_content')

function p._content(args, env)
	-- Displays the documentation contents
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	env = env or p.getEnvironment(args)
	local docTitle = env.docTitle
	local content = args.content
	if not content and docTitle and docTitle.exists then
		content = args._content or mw.getCurrentFrame():expandTemplate{title = docTitle.prefixedText}
	end
	-- The line breaks below are necessary so that "=== Headings ===" at the start and end
	-- of docs are interpreted correctly.
	return '\n' .. (content or '') .. '\n' 
end

p.contentTitle = makeInvokeFunc('_contentTitle')

function p._contentTitle(args, env)
	env = env or p.getEnvironment(args)
	local docTitle = env.docTitle
	if not args.content and docTitle and docTitle.exists then
		return docTitle.prefixedText
	else
		return ''
	end
end

----------------------------------------------------------------------------
-- End box
----------------------------------------------------------------------------

p.endBox = makeInvokeFunc('_endBox')

function p._endBox(args, env)
	--[=[
	-- This function generates the end box (also known as the link box).
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- 
	-- Messages:
	-- 'fmbox-id' --> 'documentation-meta-data'
	-- 'fmbox-style' --> 'background-color: #ecfcf4'
	-- 'fmbox-textstyle' --> 'font-style: italic'
	-- 
	-- The HTML is generated by the '"`UNIQ--templatestyles-00000002-QINU`"'<table class="plainlinks fmbox fmbox-system" role="presentation"><tr><td class="mbox-image">[[File:Information icon4.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table> template, courtesy of [[Module:Message box]].
	--]=]
	
	-- Get environment data.
	env = env or p.getEnvironment(args)
	local subjectSpace = env.subjectSpace
	local docTitle = env.docTitle
	if not subjectSpace or not docTitle then
		return nil
	end
		
	-- Check whether we should output the end box at all. Add the end
	-- box by default if the documentation exists or if we are in the
	-- user, module or template namespaces.
	local linkBox = args['link box']
	if linkBox == 'off'
		or not (
			docTitle.exists
			or subjectSpace == 2
			or subjectSpace == 828
			or subjectSpace == 10
		)
	then
		return nil
	end

	-- Assemble the arguments for '"`UNIQ--templatestyles-00000002-QINU`"'<table class="plainlinks fmbox fmbox-system" role="presentation"><tr><td class="mbox-image">[[File:Information icon4.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table>.
	local fmargs = {}
	fmargs.id = message('fmbox-id') -- Sets 'documentation-meta-data'
	fmargs.image = 'none'
	fmargs.style = message('fmbox-style') -- Sets 'background-color: #ecfcf4'
	fmargs.textstyle = message('fmbox-textstyle') -- 'font-style: italic;'

	-- Assemble the fmbox text field.
	local text = ''
	if linkBox then
		text = text .. linkBox
	else
		text = text .. (p.makeDocPageBlurb(args, env) or '') -- "This documentation is transcluded from [[Foo]]." 
		if subjectSpace == 2 or subjectSpace == 10 or subjectSpace == 828 then
			-- We are in the user, template or module namespaces.
			-- Add sandbox and testcases links.
			-- "Editors can experiment in this template's sandbox and testcases pages."
			text = text .. (p.makeExperimentBlurb(args, env) or '')
			text = text .. '<br />'
			if not args.content and not args[1] then
				-- "Please add categories to the /doc subpage."
				-- Don't show this message with inline docs or with an explicitly specified doc page,
				-- as then it is unclear where to add the categories.
				text = text .. (p.makeCategoriesBlurb(args, env) or '')
			end
			text = text .. ' ' .. (p.makeSubpagesBlurb(args, env) or '') --"Subpages of this template"
			local printBlurb = p.makePrintBlurb(args, env) -- Two-line blurb about print versions of templates.
			if printBlurb then
				text = text .. '<br />' .. printBlurb
			end
		end
	end
	fmargs.text = text

	return messageBox.main('fmbox', fmargs)
end

function p.makeDocPageBlurb(args, env)
	--[=[
	-- Makes the blurb "This documentation is transcluded from [[Template:Foo]] (edit, history)".
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- 
	-- Messages:
	-- 'edit-link-display' --> 'edit'
	-- 'history-link-display' --> 'history'
	-- 'transcluded-from-blurb' --> 
	-- 'The above [[Wikipedia:Template documentation|documentation]] 
	-- is [[Wikipedia:Transclusion|transcluded]] from $1.'
	-- 'module-preload' --> 'Template:Documentation/preload-module-doc'
	-- 'create-link-display' --> 'create'
	-- 'create-module-doc-blurb' -->
	-- 'You might want to $1 a documentation page for this [[Wikipedia:Lua|Scribunto module]].'
	--]=]
	local docTitle = env.docTitle
	if not docTitle then
		return nil
	end
	local ret
	if docTitle.exists then
		-- /doc exists; link to it.
		local docLink = makeWikilink(docTitle.prefixedText)
		local editUrl = docTitle:fullUrl{action = 'edit'}
		local editDisplay = message('edit-link-display')
		local editLink = makeUrlLink(editUrl, editDisplay)
		local historyUrl = docTitle:fullUrl{action = 'history'}
		local historyDisplay = message('history-link-display')
		local historyLink = makeUrlLink(historyUrl, historyDisplay)
		ret = message('transcluded-from-blurb', {docLink})
			.. ' '
			.. makeToolbar(editLink, historyLink)
			.. '<br />'
	elseif env.subjectSpace == 828 then
		-- /doc does not exist; ask to create it.
		local createUrl = docTitle:fullUrl{action = 'edit', preload = message('module-preload')}
		local createDisplay = message('create-link-display')
		local createLink = makeUrlLink(createUrl, createDisplay)
		ret = message('create-module-doc-blurb', {createLink})
			.. '<br />'
	end
	return ret
end

function p.makeExperimentBlurb(args, env)
	--[[
	-- Renders the text "Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages."
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- 
	-- Messages:
	-- 'sandbox-link-display' --> 'sandbox'
	-- 'sandbox-edit-link-display' --> 'edit'
	-- 'compare-link-display' --> 'diff'
	-- 'module-sandbox-preload' --> 'Template:Documentation/preload-module-sandbox'
	-- 'template-sandbox-preload' --> 'Template:Documentation/preload-sandbox'
	-- 'sandbox-create-link-display' --> 'create'
	-- 'mirror-edit-summary' --> 'Create sandbox version of $1'
	-- 'mirror-link-display' --> 'mirror'
	-- 'sandbox-link-display' --> 'sandbox'
	-- 'testcases-link-display' --> 'testcases'
	-- 'testcases-edit-link-display'--> 'edit'
	-- 'module-testcases-preload' --> 'Template:Documentation/preload-module-testcases'
	-- 'template-sandbox-preload' --> 'Template:Documentation/preload-sandbox'
	-- 'testcases-create-link-display' --> 'create'
	-- 'testcases-link-display' --> 'testcases'
	-- 'testcases-edit-link-display' --> 'edit'
	-- 'module-testcases-preload' --> 'Template:Documentation/preload-module-testcases'
	-- 'template-testcases-preload' --> 'Template:Documentation/preload-testcases'
	-- 'experiment-blurb-module' --> 'Editors can experiment in this module's $1 and $2 pages.'
	-- 'experiment-blurb-template' --> 'Editors can experiment in this template's $1 and $2 pages.'
	--]]
	local subjectSpace = env.subjectSpace
	local templateTitle = env.templateTitle
	local sandboxTitle = env.sandboxTitle
	local testcasesTitle = env.testcasesTitle
	local templatePage = templateTitle.prefixedText
	if not subjectSpace or not templateTitle or not sandboxTitle or not testcasesTitle then
		return nil
	end
	-- Make links.
	local sandboxLinks, testcasesLinks
	if sandboxTitle.exists then
		local sandboxPage = sandboxTitle.prefixedText
		local sandboxDisplay = message('sandbox-link-display')
		local sandboxLink = makeWikilink(sandboxPage, sandboxDisplay)
		local sandboxEditUrl = sandboxTitle:fullUrl{action = 'edit'}
		local sandboxEditDisplay = message('sandbox-edit-link-display')
		local sandboxEditLink = makeUrlLink(sandboxEditUrl, sandboxEditDisplay)
		local compareUrl = env.compareUrl
		local compareLink
		if compareUrl then
			local compareDisplay = message('compare-link-display')
			compareLink = makeUrlLink(compareUrl, compareDisplay)
		end
		sandboxLinks = sandboxLink .. ' ' .. makeToolbar(sandboxEditLink, compareLink)
	else
		local sandboxPreload
		if subjectSpace == 828 then
			sandboxPreload = message('module-sandbox-preload')
		else
			sandboxPreload = message('template-sandbox-preload')
		end
		local sandboxCreateUrl = sandboxTitle:fullUrl{action = 'edit', preload = sandboxPreload}
		local sandboxCreateDisplay = message('sandbox-create-link-display')
		local sandboxCreateLink = makeUrlLink(sandboxCreateUrl, sandboxCreateDisplay)
		local mirrorSummary = message('mirror-edit-summary', {makeWikilink(templatePage)})
		local mirrorUrl = sandboxTitle:fullUrl{action = 'edit', preload = templatePage, summary = mirrorSummary}
		local mirrorDisplay = message('mirror-link-display')
		local mirrorLink = makeUrlLink(mirrorUrl, mirrorDisplay)
		sandboxLinks = message('sandbox-link-display') .. ' ' .. makeToolbar(sandboxCreateLink, mirrorLink)
	end
	if testcasesTitle.exists then
		local testcasesPage = testcasesTitle.prefixedText
		local testcasesDisplay = message('testcases-link-display')
		local testcasesLink = makeWikilink(testcasesPage, testcasesDisplay)
		local testcasesEditUrl = testcasesTitle:fullUrl{action = 'edit'}
		local testcasesEditDisplay = message('testcases-edit-link-display')
		local testcasesEditLink = makeUrlLink(testcasesEditUrl, testcasesEditDisplay)
		testcasesLinks = testcasesLink .. ' ' .. makeToolbar(testcasesEditLink)
	else
		local testcasesPreload
		if subjectSpace == 828 then
			testcasesPreload = message('module-testcases-preload')
		else
			testcasesPreload = message('template-testcases-preload')
		end
		local testcasesCreateUrl = testcasesTitle:fullUrl{action = 'edit', preload = testcasesPreload}
		local testcasesCreateDisplay = message('testcases-create-link-display')
		local testcasesCreateLink = makeUrlLink(testcasesCreateUrl, testcasesCreateDisplay)
		testcasesLinks = message('testcases-link-display') .. ' ' .. makeToolbar(testcasesCreateLink)
	end
	local messageName
	if subjectSpace == 828 then
		messageName = 'experiment-blurb-module'
	else
		messageName = 'experiment-blurb-template'
	end
	return message(messageName, {sandboxLinks, testcasesLinks})
end

function p.makeCategoriesBlurb(args, env)
	--[[
	-- Generates the text "Please add categories to the /doc subpage."
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	-- Messages:
	-- 'doc-link-display' --> '/doc'
	-- 'add-categories-blurb' --> 'Please add categories to the $1 subpage.'
	--]]
	local docTitle = env.docTitle
	if not docTitle then
		return nil
	end
	local docPathLink = makeWikilink(docTitle.prefixedText, message('doc-link-display'))
	return message('add-categories-blurb', {docPathLink})
end

function p.makeSubpagesBlurb(args, env)
	--[[
	-- Generates the "Subpages of this template" link.
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	
	-- Messages:
	-- 'template-pagetype' --> 'template'
	-- 'module-pagetype' --> 'module'
	-- 'default-pagetype' --> 'page'
	-- 'subpages-link-display' --> 'Subpages of this $1'
	--]]
	local subjectSpace = env.subjectSpace
	local templateTitle = env.templateTitle
	if not subjectSpace or not templateTitle then
		return nil
	end
	local pagetype
	if subjectSpace == 10 then
		pagetype = message('template-pagetype')
	elseif subjectSpace == 828 then
		pagetype = message('module-pagetype')
	else
		pagetype = message('default-pagetype')
	end
	local subpagesLink = makeWikilink(
		'Special:PrefixIndex/' .. templateTitle.prefixedText .. '/',
		message('subpages-link-display', {pagetype})
	)
	return message('subpages-blurb', {subpagesLink})
end

function p.makePrintBlurb(args, env)
	--[=[
	-- Generates the blurb displayed when there is a print version of the template available.
	-- @args - a table of arguments passed by the user
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	--
	-- Messages:
	-- 'print-link-display' --> '/Print'
	-- 'print-blurb' --> 'A [[Help:Books/for experts#Improving the book layout|print version]]'
	--		.. ' of this template exists at $1.'
	--		.. ' If you make a change to this template, please update the print version as well.'
	-- 'display-print-category' --> true
	-- 'print-category' --> 'Templates with print versions'
	--]=]
	local printTitle = env.printTitle
	if not printTitle then
		return nil
	end
	local ret
	if printTitle.exists then
		local printLink = makeWikilink(printTitle.prefixedText, message('print-link-display'))
		ret = message('print-blurb', {printLink})
		local displayPrintCategory = message('display-print-category', nil, 'boolean')
		if displayPrintCategory then
			ret = ret .. makeCategoryLink(message('print-category'))
		end
	end
	return ret
end

----------------------------------------------------------------------------
-- Tracking categories
----------------------------------------------------------------------------

function p.addTrackingCategories(env)
	--[[
	-- Check if documentation is transcluded on a /doc or /testcases page.
	-- @env - environment table containing title objects, etc., generated with p.getEnvironment
	
	-- Messages:
	-- 'display-strange-usage-category' --> true
	-- 'doc-subpage' --> 'doc'
	-- 'testcases-subpage' --> 'testcases'
	-- 'strange-usage-category' --> 'Wikipedia pages with strange ((documentation)) usage'
	-- 
	-- /testcases pages in the module namespace are not categorised, as they may have
	-- documentation transcluded automatically.
	--]]
	local title = env.title
	local subjectSpace = env.subjectSpace
	if not title or not subjectSpace then
		return nil
	end
	local subpage = title.subpageText
	local ret = ''
	if message('display-strange-usage-category', nil, 'boolean')
		and (
			subpage == message('doc-subpage')
			or subjectSpace ~= 828 and subpage == message('testcases-subpage')
		)
	then
		ret = ret .. makeCategoryLink(message('strange-usage-category'))
	end
	return ret
end

return p
{{Syntaxhighlight|code={{Module:Documentation}}|lang=lua}}

Module:Documentation/config

[edit]
----------------------------------------------------------------------------------------------------
--
--                               Configuration for Module:Documentation
--
-- Here you can set the values of the parameters and messages used in Module:Documentation to
-- localise it to your wiki and your language. Unless specified otherwise, values given here
-- should be string values.
----------------------------------------------------------------------------------------------------

local cfg = {} -- Do not edit this line.

----------------------------------------------------------------------------------------------------
-- Protection template configuration
----------------------------------------------------------------------------------------------------

-- cfg['protection-reason-edit']
-- The protection reason for edit-protected templates to pass to
-- [[Module:Protection banner]].
cfg['protection-reason-edit'] = 'template'

--[[
----------------------------------------------------------------------------------------------------
-- Sandbox notice configuration
--
-- On sandbox pages the module can display a template notifying users that the current page is a
-- sandbox, and the location of test cases pages, etc. The module decides whether the page is a
-- sandbox or not based on the value of cfg['sandbox-subpage']. The following settings configure the
-- messages that the notices contains.
----------------------------------------------------------------------------------------------------
--]]

-- cfg['sandbox-notice-image']
-- The image displayed in the sandbox notice.
cfg['sandbox-notice-image'] = '[[Image:Sandbox.svg|50px|alt=|link=]]'

--[[
-- cfg['sandbox-notice-pagetype-template']
-- cfg['sandbox-notice-pagetype-module']
-- cfg['sandbox-notice-pagetype-other']
-- The page type of the sandbox page. The message that is displayed depends on the current subject
-- namespace. This message is used in either cfg['sandbox-notice-blurb'] or
-- cfg['sandbox-notice-diff-blurb'].
--]]
cfg['sandbox-notice-pagetype-template'] = '[[Wikipedia:Template test cases|template sandbox]] page'
cfg['sandbox-notice-pagetype-module'] = '[[Wikipedia:Template test cases|module sandbox]] page'
cfg['sandbox-notice-pagetype-other'] = 'sandbox page'

--[[
-- cfg['sandbox-notice-blurb']
-- cfg['sandbox-notice-diff-blurb']
-- cfg['sandbox-notice-diff-display']
-- Either cfg['sandbox-notice-blurb'] or cfg['sandbox-notice-diff-blurb'] is the opening sentence
-- of the sandbox notice. The latter has a diff link, but the former does not. $1 is the page
-- type, which is either cfg['sandbox-notice-pagetype-template'],
-- cfg['sandbox-notice-pagetype-module'] or cfg['sandbox-notice-pagetype-other'] depending what
-- namespace we are in. $2 is a link to the main template page, and $3 is a diff link between
-- the sandbox and the main template. The display value of the diff link is set by 
-- cfg['sandbox-notice-compare-link-display'].
--]]
cfg['sandbox-notice-blurb'] = 'This is the $1 for $2.'
cfg['sandbox-notice-diff-blurb'] = 'This is the $1 for $2 ($3).'
cfg['sandbox-notice-compare-link-display'] = 'diff'

--[[
-- cfg['sandbox-notice-testcases-blurb']
-- cfg['sandbox-notice-testcases-link-display']
-- cfg['sandbox-notice-testcases-run-blurb']
-- cfg['sandbox-notice-testcases-run-link-display']
-- cfg['sandbox-notice-testcases-blurb'] is a sentence notifying the user that there is a test cases page
-- corresponding to this sandbox that they can edit. $1 is a link to the test cases page.
-- cfg['sandbox-notice-testcases-link-display'] is the display value for that link.
-- cfg['sandbox-notice-testcases-run-blurb'] is a sentence notifying the user that there is a test cases page
-- corresponding to this sandbox that they can edit, along with a link to run it. $1 is a link to the test
-- cases page, and $2 is a link to the page to run it.
-- cfg['sandbox-notice-testcases-run-link-display'] is the display value for the link to run the test
-- cases.
--]]
cfg['sandbox-notice-testcases-blurb'] = 'See also the companion subpage for $1.'
cfg['sandbox-notice-testcases-link-display'] = 'test cases'
cfg['sandbox-notice-testcases-run-blurb'] = 'See also the companion subpage for $1 ($2).'
cfg['sandbox-notice-testcases-run-link-display'] = 'run'

-- cfg['sandbox-category']
-- A category to add to all template sandboxes.
cfg['sandbox-category'] = 'Template sandboxes'

----------------------------------------------------------------------------------------------------
-- Start box configuration
----------------------------------------------------------------------------------------------------

-- cfg['documentation-icon-wikitext']
-- The wikitext for the icon shown at the top of the template.
cfg['documentation-icon-wikitext'] = '[[File:Test Template Info-Icon - Version (2).svg|50px|link=|alt=Documentation icon]]'

-- cfg['template-namespace-heading']
-- The heading shown in the template namespace.
cfg['template-namespace-heading'] = 'Template documentation'

-- cfg['module-namespace-heading']
-- The heading shown in the module namespace.
cfg['module-namespace-heading'] = 'Module documentation'

-- cfg['file-namespace-heading']
-- The heading shown in the file namespace.
cfg['file-namespace-heading'] = 'Summary'

-- cfg['other-namespaces-heading']
-- The heading shown in other namespaces.
cfg['other-namespaces-heading'] = 'Documentation'

-- cfg['view-link-display']
-- The text to display for "view" links.
cfg['view-link-display'] = 'view'

-- cfg['edit-link-display']
-- The text to display for "edit" links.
cfg['edit-link-display'] = 'edit'

-- cfg['history-link-display']
-- The text to display for "history" links.
cfg['history-link-display'] = 'history'

-- cfg['purge-link-display']
-- The text to display for "purge" links.
cfg['purge-link-display'] = 'purge'

-- cfg['create-link-display']
-- The text to display for "create" links.
cfg['create-link-display'] = 'create'

----------------------------------------------------------------------------------------------------
-- Link box (end box) configuration
----------------------------------------------------------------------------------------------------

-- cfg['transcluded-from-blurb']
-- Notice displayed when the docs are transcluded from another page. $1 is a wikilink to that page.
cfg['transcluded-from-blurb'] = 'The above [[Wikipedia:Template documentation|documentation]] is [[Wikipedia:Transclusion|transcluded]] from $1.'

--[[
-- cfg['create-module-doc-blurb']
-- Notice displayed in the module namespace when the documentation subpage does not exist.
-- $1 is a link to create the documentation page with the preload cfg['module-preload'] and the
-- display cfg['create-link-display'].
--]]
cfg['create-module-doc-blurb'] = 'You might want to $1 a documentation page for this [[Wikipedia:Lua|Scribunto module]].'

----------------------------------------------------------------------------------------------------
-- Experiment blurb configuration
----------------------------------------------------------------------------------------------------

--[[
-- cfg['experiment-blurb-template']
-- cfg['experiment-blurb-module']
-- The experiment blurb is the text inviting editors to experiment in sandbox and test cases pages.
-- It is only shown in the template and module namespaces. With the default English settings, it
-- might look like this:
--
-- Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages.
--
-- In this example, "sandbox", "edit", "diff", "testcases", and "edit" would all be links.
--
-- There are two versions, cfg['experiment-blurb-template'] and cfg['experiment-blurb-module'], depending
-- on what namespace we are in.
-- 
-- Parameters:
--
-- $1 is a link to the sandbox page. If the sandbox exists, it is in the following format:
--
--     cfg['sandbox-link-display'] (cfg['sandbox-edit-link-display'] | cfg['compare-link-display'])
-- 
-- If the sandbox doesn't exist, it is in the format:
--
--     cfg['sandbox-link-display'] (cfg['sandbox-create-link-display'] | cfg['mirror-link-display'])
-- 
-- The link for cfg['sandbox-create-link-display'] link preloads the page with cfg['template-sandbox-preload']
-- or cfg['module-sandbox-preload'], depending on the current namespace. The link for cfg['mirror-link-display']
-- loads a default edit summary of cfg['mirror-edit-summary'].
--
-- $2 is a link to the test cases page. If the test cases page exists, it is in the following format:
--
--     cfg['testcases-link-display'] (cfg['testcases-edit-link-display'])
--
-- If the test cases page doesn't exist, it is in the format:
-- 
--     cfg['testcases-link-display'] (cfg['testcases-create-link-display'])
--
-- If the test cases page doesn't exist, the link for cfg['testcases-create-link-display'] preloads the
-- page with cfg['template-testcases-preload'] or cfg['module-testcases-preload'], depending on the current
-- namespace.
--]]
cfg['experiment-blurb-template'] = "Editors can experiment in this template's $1 and $2 pages."
cfg['experiment-blurb-module'] = "Editors can experiment in this module's $1 and $2 pages."

----------------------------------------------------------------------------------------------------
-- Sandbox link configuration
----------------------------------------------------------------------------------------------------

-- cfg['sandbox-subpage']
-- The name of the template subpage typically used for sandboxes.
cfg['sandbox-subpage'] = 'sandbox'

-- cfg['template-sandbox-preload']
-- Preload file for template sandbox pages.
cfg['template-sandbox-preload'] = 'Template:Documentation/preload-sandbox'

-- cfg['module-sandbox-preload']
-- Preload file for Lua module sandbox pages.
cfg['module-sandbox-preload'] = 'Template:Documentation/preload-module-sandbox'

-- cfg['sandbox-link-display']
-- The text to display for "sandbox" links.
cfg['sandbox-link-display'] = 'sandbox'

-- cfg['sandbox-edit-link-display']
-- The text to display for sandbox "edit" links.
cfg['sandbox-edit-link-display'] = 'edit'

-- cfg['sandbox-create-link-display']
-- The text to display for sandbox "create" links.
cfg['sandbox-create-link-display'] = 'create'

-- cfg['compare-link-display']
-- The text to display for "compare" links.
cfg['compare-link-display'] = 'diff'

-- cfg['mirror-edit-summary']
-- The default edit summary to use when a user clicks the "mirror" link. $1 is a wikilink to the
-- template page.
cfg['mirror-edit-summary'] = 'Create sandbox version of $1'

-- cfg['mirror-link-display']
-- The text to display for "mirror" links.
cfg['mirror-link-display'] = 'mirror'

----------------------------------------------------------------------------------------------------
-- Test cases link configuration
----------------------------------------------------------------------------------------------------

-- cfg['testcases-subpage']
-- The name of the template subpage typically used for test cases.
cfg['testcases-subpage'] = 'testcases'

-- cfg['template-testcases-preload']
-- Preload file for template test cases pages.
cfg['template-testcases-preload'] = 'Template:Documentation/preload-testcases'

-- cfg['module-testcases-preload']
-- Preload file for Lua module test cases pages.
cfg['module-testcases-preload'] = 'Template:Documentation/preload-module-testcases'

-- cfg['testcases-link-display']
-- The text to display for "testcases" links.
cfg['testcases-link-display'] = 'testcases'

-- cfg['testcases-edit-link-display']
-- The text to display for test cases "edit" links.
cfg['testcases-edit-link-display'] = 'edit'

-- cfg['testcases-create-link-display']
-- The text to display for test cases "create" links.
cfg['testcases-create-link-display'] = 'create'

----------------------------------------------------------------------------------------------------
-- Add categories blurb configuration
----------------------------------------------------------------------------------------------------

--[[
-- cfg['add-categories-blurb']
-- Text to direct users to add categories to the /doc subpage. Not used if the "content" or
-- "docname fed" arguments are set, as then it is not clear where to add the categories. $1 is a
-- link to the /doc subpage with a display value of cfg['doc-link-display'].
--]]
cfg['add-categories-blurb'] = 'Please add categories to the $1 subpage.'

-- cfg['doc-link-display']
-- The text to display when linking to the /doc subpage.
cfg['doc-link-display'] = '/doc'

----------------------------------------------------------------------------------------------------
-- Subpages link configuration
----------------------------------------------------------------------------------------------------

--[[
-- cfg['subpages-blurb']
-- The "Subpages of this template" blurb. $1 is a link to the main template's subpages with a
-- display value of cfg['subpages-link-display']. In the English version this blurb is simply
-- the link followed by a period, and the link display provides the actual text.
--]]
cfg['subpages-blurb'] = '$1.'

--[[
-- cfg['subpages-link-display']
-- The text to display for the "subpages of this page" link. $1 is cfg['template-pagetype'],
-- cfg['module-pagetype'] or cfg['default-pagetype'], depending on whether the current page is in
-- the template namespace, the module namespace, or another namespace.
--]]
cfg['subpages-link-display'] = 'Subpages of this $1'

-- cfg['template-pagetype']
-- The pagetype to display for template pages.
cfg['template-pagetype'] = 'template'

-- cfg['module-pagetype']
-- The pagetype to display for Lua module pages.
cfg['module-pagetype'] = 'module'

-- cfg['default-pagetype']
-- The pagetype to display for pages other than templates or Lua modules.
cfg['default-pagetype'] = 'page'

----------------------------------------------------------------------------------------------------
-- Doc link configuration
----------------------------------------------------------------------------------------------------

-- cfg['doc-subpage']
-- The name of the subpage typically used for documentation pages.
cfg['doc-subpage'] = 'doc'

-- cfg['file-docpage-preload']
-- Preload file for documentation page in the file namespace.
cfg['file-docpage-preload'] = 'Template:Documentation/preload-filespace'

-- cfg['docpage-preload']
-- Preload file for template documentation pages in all namespaces.
cfg['docpage-preload'] = 'Template:Documentation/preload'

-- cfg['module-preload']
-- Preload file for Lua module documentation pages.
cfg['module-preload'] = 'Template:Documentation/preload-module-doc'

----------------------------------------------------------------------------------------------------
-- Print version configuration
----------------------------------------------------------------------------------------------------

-- cfg['print-subpage']
-- The name of the template subpage used for print versions.
cfg['print-subpage'] = 'Print'

-- cfg['print-link-display']
-- The text to display when linking to the /Print subpage.
cfg['print-link-display'] = '/Print'

-- cfg['print-blurb']
-- Text to display if a /Print subpage exists. $1 is a link to the subpage with a display value of cfg['print-link-display'].
cfg['print-blurb'] = 'A [[Help:Books/for experts#Improving the book layout|print version]] of this template exists at $1.'
	.. ' If you make a change to this template, please update the print version as well.'

-- cfg['display-print-category']
-- Set to true to enable output of cfg['print-category'] if a /Print subpage exists.
-- This should be a boolean value (either true or false).
cfg['display-print-category'] = true

-- cfg['print-category']
-- Category to output if cfg['display-print-category'] is set to true, and a /Print subpage exists.
cfg['print-category'] = 'Templates with print versions'

----------------------------------------------------------------------------------------------------
-- HTML and CSS configuration
----------------------------------------------------------------------------------------------------

-- cfg['main-div-id']
-- The "id" attribute of the main HTML "div" tag.
cfg['main-div-id'] = 'template-documentation'

-- cfg['main-div-classes']
-- The CSS classes added to the main HTML "div" tag.
cfg['main-div-classes'] = 'template-documentation iezoomfix'

-- cfg['start-box-linkclasses']
-- The CSS classes used for the [view][edit][history] or [create] links in the start box.
cfg['start-box-linkclasses'] = 'mw-editsection-like plainlinks'

-- cfg['start-box-link-id']
-- The HTML "id" attribute for the links in the start box.
cfg['start-box-link-id'] = 'doc_editlinks'

----------------------------------------------------------------------------------------------------
-- '"`UNIQ--templatestyles-00000007-QINU`"'<table class="plainlinks fmbox fmbox-system" role="presentation"><tr><td class="mbox-image">[[File:Information icon4.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table> template configuration
----------------------------------------------------------------------------------------------------

-- cfg['fmbox-id']
-- The id sent to the "id" parameter of the '"`UNIQ--templatestyles-00000007-QINU`"'<table class="plainlinks fmbox fmbox-system" role="presentation"><tr><td class="mbox-image">[[File:Information icon4.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table> template.
cfg['fmbox-id'] = 'documentation-meta-data'

-- cfg['fmbox-style']
-- The value sent to the style parameter of '"`UNIQ--templatestyles-00000007-QINU`"'<table class="plainlinks fmbox fmbox-system" role="presentation"><tr><td class="mbox-image">[[File:Information icon4.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table>.
cfg['fmbox-style'] = 'background-color: #ecfcf4'

-- cfg['fmbox-textstyle']
-- The value sent to the "textstyle parameter of '"`UNIQ--templatestyles-00000007-QINU`"'<table class="plainlinks fmbox fmbox-system" role="presentation"><tr><td class="mbox-image">[[File:Information icon4.svg|45x45px|link=|alt=]]</td><td class="mbox-text"></td></tr></table>.
cfg['fmbox-textstyle'] = 'font-style: italic'

----------------------------------------------------------------------------------------------------
-- Tracking category configuration
----------------------------------------------------------------------------------------------------

-- cfg['display-strange-usage-category']
-- Set to true to enable output of cfg['strange-usage-category'] if the module is used on a /doc subpage
-- or a /testcases subpage. This should be a boolean value (either true or false).
cfg['display-strange-usage-category'] = true

-- cfg['strange-usage-category']
-- Category to output if cfg['display-strange-usage-category'] is set to true and the module is used on a
-- /doc subpage or a /testcases subpage.
cfg['strange-usage-category'] = 'Wikipedia pages with strange ((documentation)) usage'

--[[
----------------------------------------------------------------------------------------------------
-- End configuration
--
-- Don't edit anything below this line.
----------------------------------------------------------------------------------------------------
--]]

return cfg


Module:Arguments

[edit]
-- This module provides easy processing of arguments passed to Scribunto from
-- #invoke. It is intended for use by other Lua modules, and should not be
-- called from #invoke directly.

local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType

local arguments = {}

-- Generate four different tidyVal functions, so that we don't have to check the
-- options every time we call it.

local function tidyValDefault(key, val)
	if type(val) == 'string' then
		val = val:match('^%s*(.-)%s*$')
		if val == '' then
			return nil
		else
			return val
		end
	else
		return val
	end
end

local function tidyValTrimOnly(key, val)
	if type(val) == 'string' then
		return val:match('^%s*(.-)%s*$')
	else
		return val
	end
end

local function tidyValRemoveBlanksOnly(key, val)
	if type(val) == 'string' then
		if val:find('%S') then
			return val
		else
			return nil
		end
	else
		return val
	end
end

local function tidyValNoChange(key, val)
	return val
end

local function matchesTitle(given, title)
	local tp = type( given )
	return (tp == 'string' or tp == 'number') and mw.title.new( given ).prefixedText == title
end

local translate_mt = { __index = function(t, k) return k end }

function arguments.getArgs(frame, options)
	checkType('getArgs', 1, frame, 'table', true)
	checkType('getArgs', 2, options, 'table', true)
	frame = frame or {}
	options = options or {}

	--[[
	-- Set up argument translation.
	--]]
	options.translate = options.translate or {}
	if getmetatable(options.translate) == nil then
		setmetatable(options.translate, translate_mt)
	end
	if options.backtranslate == nil then
		options.backtranslate = {}
		for k,v in pairs(options.translate) do
			options.backtranslate[v] = k
		end
	end
	if options.backtranslate and getmetatable(options.backtranslate) == nil then
		setmetatable(options.backtranslate, {
			__index = function(t, k)
				if options.translate[k] ~= k then
					return nil
				else
					return k
				end
			end
		})
	end

	--[[
	-- Get the argument tables. If we were passed a valid frame object, get the
	-- frame arguments (fargs) and the parent frame arguments (pargs), depending
	-- on the options set and on the parent frame's availability. If we weren't
	-- passed a valid frame object, we are being called from another Lua module
	-- or from the debug console, so assume that we were passed a table of args
	-- directly, and assign it to a new variable (luaArgs).
	--]]
	local fargs, pargs, luaArgs
	if type(frame.args) == 'table' and type(frame.getParent) == 'function' then
		if options.wrappers then
			--[[
			-- The wrappers option makes Module:Arguments look up arguments in
			-- either the frame argument table or the parent argument table, but
			-- not both. This means that users can use either the #invoke syntax
			-- or a wrapper template without the loss of performance associated
			-- with looking arguments up in both the frame and the parent frame.
			-- Module:Arguments will look up arguments in the parent frame
			-- if it finds the parent frame's title in options.wrapper;
			-- otherwise it will look up arguments in the frame object passed
			-- to getArgs.
			--]]
			local parent = frame:getParent()
			if not parent then
				fargs = frame.args
			else
				local title = parent:getTitle():gsub('/sandbox$', '')
				local found = false
				if matchesTitle(options.wrappers, title) then
					found = true
				elseif type(options.wrappers) == 'table' then
					for _,v in pairs(options.wrappers) do
						if matchesTitle(v, title) then
							found = true
							break
						end
					end
				end

				-- We test for false specifically here so that nil (the default) acts like true.
				if found or options.frameOnly == false then
					pargs = parent.args
				end
				if not found or options.parentOnly == false then
					fargs = frame.args
				end
			end
		else
			-- options.wrapper isn't set, so check the other options.
			if not options.parentOnly then
				fargs = frame.args
			end
			if not options.frameOnly then
				local parent = frame:getParent()
				pargs = parent and parent.args or nil
			end
		end
		if options.parentFirst then
			fargs, pargs = pargs, fargs
		end
	else
		luaArgs = frame
	end

	-- Set the order of precedence of the argument tables. If the variables are
	-- nil, nothing will be added to the table, which is how we avoid clashes
	-- between the frame/parent args and the Lua args.
	local argTables = {fargs}
	argTables[#argTables + 1] = pargs
	argTables[#argTables + 1] = luaArgs

	--[[
	-- Generate the tidyVal function. If it has been specified by the user, we
	-- use that; if not, we choose one of four functions depending on the
	-- options chosen. This is so that we don't have to call the options table
	-- every time the function is called.
	--]]
	local tidyVal = options.valueFunc
	if tidyVal then
		if type(tidyVal) ~= 'function' then
			error(
				"bad value assigned to option 'valueFunc'"
					.. '(function expected, got '
					.. type(tidyVal)
					.. ')',
				2
			)
		end
	elseif options.trim ~= false then
		if options.removeBlanks ~= false then
			tidyVal = tidyValDefault
		else
			tidyVal = tidyValTrimOnly
		end
	else
		if options.removeBlanks ~= false then
			tidyVal = tidyValRemoveBlanksOnly
		else
			tidyVal = tidyValNoChange
		end
	end

	--[[
	-- Set up the args, metaArgs and nilArgs tables. args will be the one
	-- accessed from functions, and metaArgs will hold the actual arguments. Nil
	-- arguments are memoized in nilArgs, and the metatable connects all of them
	-- together.
	--]]
	local args, metaArgs, nilArgs, metatable = {}, {}, {}, {}
	setmetatable(args, metatable)

	local function mergeArgs(tables)
		--[[
		-- Accepts multiple tables as input and merges their keys and values
		-- into one table. If a value is already present it is not overwritten;
		-- tables listed earlier have precedence. We are also memoizing nil
		-- values, which can be overwritten if they are 's' (soft).
		--]]
		for _, t in ipairs(tables) do
			for key, val in pairs(t) do
				if metaArgs[key] == nil and nilArgs[key] ~= 'h' then
					local tidiedVal = tidyVal(key, val)
					if tidiedVal == nil then
						nilArgs[key] = 's'
					else
						metaArgs[key] = tidiedVal
					end
				end
			end
		end
	end

	--[[
	-- Define metatable behaviour. Arguments are memoized in the metaArgs table,
	-- and are only fetched from the argument tables once. Fetching arguments
	-- from the argument tables is the most resource-intensive step in this
	-- module, so we try and avoid it where possible. For this reason, nil
	-- arguments are also memoized, in the nilArgs table. Also, we keep a record
	-- in the metatable of when pairs and ipairs have been called, so we do not
	-- run pairs and ipairs on the argument tables more than once. We also do
	-- not run ipairs on fargs and pargs if pairs has already been run, as all
	-- the arguments will already have been copied over.
	--]]

	metatable.__index = function (t, key)
		--[[
		-- Fetches an argument when the args table is indexed. First we check
		-- to see if the value is memoized, and if not we try and fetch it from
		-- the argument tables. When we check memoization, we need to check
		-- metaArgs before nilArgs, as both can be non-nil at the same time.
		-- If the argument is not present in metaArgs, we also check whether
		-- pairs has been run yet. If pairs has already been run, we return nil.
		-- This is because all the arguments will have already been copied into
		-- metaArgs by the mergeArgs function, meaning that any other arguments
		-- must be nil.
		--]]
		if type(key) == 'string' then
			key = options.translate[key]
		end
		local val = metaArgs[key]
		if val ~= nil then
			return val
		elseif metatable.donePairs or nilArgs[key] then
			return nil
		end
		for _, argTable in ipairs(argTables) do
			local argTableVal = tidyVal(key, argTable[key])
			if argTableVal ~= nil then
				metaArgs[key] = argTableVal
				return argTableVal
			end
		end
		nilArgs[key] = 'h'
		return nil
	end

	metatable.__newindex = function (t, key, val)
		-- This function is called when a module tries to add a new value to the
		-- args table, or tries to change an existing value.
		if type(key) == 'string' then
			key = options.translate[key]
		end
		if options.readOnly then
			error(
				'could not write to argument table key "'
					.. tostring(key)
					.. '"; the table is read-only',
				2
			)
		elseif options.noOverwrite and args[key] ~= nil then
			error(
				'could not write to argument table key "'
					.. tostring(key)
					.. '"; overwriting existing arguments is not permitted',
				2
			)
		elseif val == nil then
			--[[
			-- If the argument is to be overwritten with nil, we need to erase
			-- the value in metaArgs, so that __index, __pairs and __ipairs do
			-- not use a previous existing value, if present; and we also need
			-- to memoize the nil in nilArgs, so that the value isn't looked
			-- up in the argument tables if it is accessed again.
			--]]
			metaArgs[key] = nil
			nilArgs[key] = 'h'
		else
			metaArgs[key] = val
		end
	end

	local function translatenext(invariant)
		local k, v = next(invariant.t, invariant.k)
		invariant.k = k
		if k == nil then
			return nil
		elseif type(k) ~= 'string' or not options.backtranslate then
			return k, v
		else
			local backtranslate = options.backtranslate[k]
			if backtranslate == nil then
				-- Skip this one. This is a tail call, so this won't cause stack overflow
				return translatenext(invariant)
			else
				return backtranslate, v
			end
		end
	end

	metatable.__pairs = function ()
		-- Called when pairs is run on the args table.
		if not metatable.donePairs then
			mergeArgs(argTables)
			metatable.donePairs = true
		end
		return translatenext, { t = metaArgs }
	end

	local function inext(t, i)
		-- This uses our __index metamethod
		local v = t[i + 1]
		if v ~= nil then
			return i + 1, v
		end
	end

	metatable.__ipairs = function (t)
		-- Called when ipairs is run on the args table.
		return inext, t, 0
	end

	return args
end

return arguments


Module:Message box

[edit]
require('strict')
local getArgs
local yesno = require('Module:Yesno')
local lang = mw.language.getContentLanguage()

local CONFIG_MODULE = 'Module:Message box/configuration'
local DEMOSPACES = {talk = 'tmbox', image = 'mbox', file = 'mbox', category = 'mbox', article = 'mbox', main = 'mbox'}

--------------------------------------------------------------------------------
-- Helper functions
--------------------------------------------------------------------------------

local function getTitleObject(...)
	-- Get the title object, passing the function through pcall
	-- in case we are over the expensive function count limit.
	local success, title = pcall(mw.title.new, ...)
	if success then
		return title
	end
end

local function union(t1, t2)
	-- Returns the union of two arrays.
	local vals = {}
	for i, v in ipairs(t1) do
		vals[v] = true
	end
	for i, v in ipairs(t2) do
		vals[v] = true
	end
	local ret = {}
	for k in pairs(vals) do
		table.insert(ret, k)
	end
	table.sort(ret)
	return ret
end

local function getArgNums(args, prefix)
	local nums = {}
	for k, v in pairs(args) do
		local num = mw.ustring.match(tostring(k), '^' .. prefix .. '([1-9]%d*)$')
		if num then
			table.insert(nums, tonumber(num))
		end
	end
	table.sort(nums)
	return nums
end

--------------------------------------------------------------------------------
-- Box class definition
--------------------------------------------------------------------------------

local MessageBox = {}
MessageBox.__index = MessageBox

function MessageBox.new(boxType, args, cfg)
	args = args or {}
	local obj = {}

	-- Set the title object and the namespace.
	obj.title = getTitleObject(args.page) or mw.title.getCurrentTitle()

	-- Set the config for our box type.
	obj.cfg = cfg[boxType]
	if not obj.cfg then
		local ns = obj.title.namespace
		-- boxType is "mbox" or invalid input
		if args.demospace and args.demospace ~= '' then
			-- implement demospace parameter of mbox
			local demospace = string.lower(args.demospace)
			if DEMOSPACES[demospace] then
				-- use template from DEMOSPACES
				obj.cfg = cfg[DEMOSPACES[demospace]]
			elseif string.find( demospace, 'talk' ) then
				-- demo as a talk page
				obj.cfg = cfg.tmbox
			else
				-- default to ambox
				obj.cfg = cfg.mbox
			end
		elseif ns == 0 then
			obj.cfg = cfg.mbox -- main namespace
		elseif ns == 6 then
			obj.cfg = cfg.mbox -- file namespace
		elseif ns == 14 then
			obj.cfg = cfg.mbox -- category namespace
		else
			local nsTable = mw.site.namespaces[ns]
			if nsTable and nsTable.isTalk then
				obj.cfg = cfg.tmbox -- any talk namespace
			else
				obj.cfg = cfg.mbox -- other namespaces or invalid input
			end
		end
	end

	-- Set the arguments, and remove all blank arguments except for the ones
	-- listed in cfg.allowBlankParams.
	do
		local newArgs = {}
		for k, v in pairs(args) do
			if v ~= '' then
				newArgs[k] = v
			end
		end
		for i, param in ipairs(obj.cfg.allowBlankParams or {}) do
			newArgs[param] = args[param]
		end
		obj.args = newArgs
	end

	-- Define internal data structure.
	obj.categories = {}
	obj.classes = {}
	-- For lazy loading of [[Module:Category handler]].
	obj.hasCategories = false

	return setmetatable(obj, MessageBox)
end

function MessageBox:addCat(ns, cat, sort)
	if not cat then
		return nil
	end
	if sort then
		cat = string.format('[[Category:%s|%s]]', cat, sort)
	else
		cat = string.format('[[Category:%s]]', cat)
	end
	self.hasCategories = true
	self.categories[ns] = self.categories[ns] or {}
	table.insert(self.categories[ns], cat)
end

function MessageBox:addClass(class)
	if not class then
		return nil
	end
	table.insert(self.classes, class)
end

function MessageBox:setParameters()
	local args = self.args
	local cfg = self.cfg

	-- Get type data.
	self.type = args.type
	local typeData = cfg.types[self.type]
	self.invalidTypeError = cfg.showInvalidTypeError
		and self.type
		and not typeData
	typeData = typeData or cfg.types[cfg.default]
	self.typeClass = typeData.class
	self.typeImage = typeData.image
	self.typeImageNeedsLink = typeData.imageNeedsLink

	-- Find if the box has been wrongly substituted.
	self.isSubstituted = cfg.substCheck and args.subst == 'SUBST'

	-- Find whether we are using a small message box.
	self.isSmall = cfg.allowSmall and (
		cfg.smallParam and args.small == cfg.smallParam
		or not cfg.smallParam and yesno(args.small)
	)

	-- Add attributes, classes and styles.
	self.id = args.id
	self.name = args.name
	if self.name then
		self:addClass('box-' .. string.gsub(self.name,' ','_'))
	end
	if yesno(args.plainlinks) ~= false then
		self:addClass('plainlinks')
	end
	for _, class in ipairs(cfg.classes or {}) do
		self:addClass(class)
	end
	if self.isSmall then
		self:addClass(cfg.smallClass or 'mbox-small')
	end
	self:addClass(self.typeClass)
	self:addClass(args.class)
	self.style = args.style
	self.attrs = args.attrs

	-- Set text style.
	self.textstyle = args.textstyle
	
	-- Set width
	self.width = args.width
	
	-- Set margin
	self.margin = args.margin
	
	-- Set the non-collapsible text field. At the moment this is used by all box
	-- types other than ambox, and also by ambox when small=yes.
	if self.isSmall then
		self.text = args.smalltext or args.text
	else
		self.text = args.text
	end

	-- Set the below row.
	self.below = cfg.below and args.below

	-- General image settings.
	self.imageCellDiv = not self.isSmall and cfg.imageCellDiv
	self.imageEmptyCell = cfg.imageEmptyCell

	-- Left image settings.
	local imageLeft = self.isSmall and args.smallimage or args.image
	if cfg.imageCheckBlank and imageLeft ~= 'blank' and imageLeft ~= 'none'
		or not cfg.imageCheckBlank and imageLeft ~= 'none'
	then
		self.imageLeft = imageLeft
		if not imageLeft then
			local imageSize = self.isSmall
				and (cfg.imageSmallSize or '30x30px')
				or '45x45px'
			self.imageLeft = string.format('[[File:%s|%s%s|alt=]]', self.typeImage
				or 'Information icon4.svg', imageSize, self.typeImageNeedsLink and "" or "|link=" )
		end
	end

	-- Right image settings.
	local imageRight = self.isSmall and args.smallimageright or args.imageright
	if not (cfg.imageRightNone and imageRight == 'none') then
		self.imageRight = imageRight
	end
	
	-- set templatestyles
	self.base_templatestyles = cfg.templatestyles
	self.templatestyles = args.templatestyles
end

function MessageBox:setMainspaceCategories()
	local args = self.args
	local cfg = self.cfg

	if not cfg.allowMainspaceCategories then
		return nil
	end

	local nums = {}
	for _, prefix in ipairs{'cat', 'category', 'all'} do
		args[prefix .. '1'] = args[prefix]
		nums = union(nums, getArgNums(args, prefix))
	end

	-- The following is roughly equivalent to the old [[:Template:Ambox/category]].
	local date = args.date
	date = type(date) == 'string' and date
	local preposition = 'from'
	for _, num in ipairs(nums) do
		local mainCat = args['cat' .. tostring(num)]
			or args['category' .. tostring(num)]
		local allCat = args['all' .. tostring(num)]
		mainCat = type(mainCat) == 'string' and mainCat
		allCat = type(allCat) == 'string' and allCat
		if mainCat and date and date ~= '' then
			local catTitle = string.format('%s %s %s', mainCat, preposition, date)
			self:addCat(0, catTitle)
			catTitle = getTitleObject('Category:' .. catTitle)
			if not catTitle or not catTitle.exists then
				self:addCat(0, 'Articles with invalid date parameter in template')
			end
		elseif mainCat and (not date or date == '') then
			self:addCat(0, mainCat)
		end
		if allCat then
			self:addCat(0, allCat)
		end
	end
end

function MessageBox:setTemplateCategories()
	local args = self.args
	local cfg = self.cfg

	-- Add template categories.
	if cfg.templateCategory then
		if cfg.templateCategoryRequireName then
			if self.isTemplatePage then
				self:addCat(10, cfg.templateCategory)
			end
		elseif not self.title.isSubpage then
			self:addCat(10, cfg.templateCategory)
		end
	end

	-- Add template error categories.
	if cfg.templateErrorCategory then
		local templateErrorCategory = cfg.templateErrorCategory
		local templateCat, templateSort
		if not self.name and not self.title.isSubpage then
			templateCat = templateErrorCategory
		elseif self.isTemplatePage then
			local paramsToCheck = cfg.templateErrorParamsToCheck or {}
			local count = 0
			for i, param in ipairs(paramsToCheck) do
				if not args[param] then
					count = count + 1
				end
			end
			if count > 0 then
				templateCat = templateErrorCategory
				templateSort = tostring(count)
			end
			if self.categoryNums and #self.categoryNums > 0 then
				templateCat = templateErrorCategory
				templateSort = 'C'
			end
		end
		self:addCat(10, templateCat, templateSort)
	end
end

function MessageBox:setAllNamespaceCategories()
	local cfg = self.cfg
	
	-- Set categories for all namespaces.
	if self.invalidTypeError then
		local allSort = (self.title.namespace == 0 and 'Main:' or '') .. self.title.prefixedText
		self:addCat('all', 'Wikipedia message box parameter needs fixing', allSort)
	end
	if self.isSubstituted then
		self:addCat('all', 'Pages with incorrectly substituted templates')
	end
	-- Deprecate license type
	if self.type == 'license' and cfg.deprecateLicense then
		self:addCat('all', 'Licensing templates based on Mbox')
	end
end

function MessageBox:setCategories()
	if self.title.namespace == 0 then
		self:setMainspaceCategories()
	elseif self.title.namespace == 10 then
		self:setTemplateCategories()
	end
	self:setAllNamespaceCategories()
end

function MessageBox:renderCategories()
	if not self.hasCategories then
		-- No categories added, no need to pass them to Category handler so,
		-- if it was invoked, it would return the empty string.
		-- So we shortcut and return the empty string.
		return ""
	end
	-- Convert category tables to strings and pass them through
	-- [[Module:Category handler]].
	return require('Module:Category handler')._main{
		main = table.concat(self.categories[0] or {}),
		template = table.concat(self.categories[10] or {}),
		all = table.concat(self.categories.all or {}),
		nocat = self.args.nocat,
		page = self.args.page
	}
end

function MessageBox:export()
	local root = mw.html.create()

	-- Add the subst check error.
	if self.isSubstituted and self.name then
		root:tag('b')
			:addClass('error')
			:wikitext(string.format(
				'Template <code>%s[[Template:%s|%s]]%s</code> has been incorrectly substituted.',
				mw.text.nowiki('[[:Template:'), self.name, self.name, mw.text.nowiki(']]')
			))
	end

	local frame = mw.getCurrentFrame()
	root:wikitext(frame:extensionTag{
		name = 'templatestyles',
		args = { src = self.base_templatestyles },
	})
	-- Add support for a single custom templatestyles sheet. Undocumented as
	-- need should be limited and many templates using mbox are substed; we
	-- don't want to spread templatestyles sheets around to arbitrary places
	if self.templatestyles then
		root:wikitext(frame:extensionTag{
			name = 'templatestyles',
			args = { src = self.templatestyles },
		})
	end

	-- Create the box table.
	local boxTable = root:tag('table')
	boxTable:attr('id', self.id or nil)
	for i, class in ipairs(self.classes or {}) do
		boxTable:addClass(class or nil)
	end
	boxTable
		:cssText(self.style or nil)
		:attr('role', 'presentation')
	if self.width then
		boxTable:cssText('width: ' .. self.width)
	end
	if self.margin then
		boxTable:cssText('margin: 2px ' .. self.margin)
	end
	if self.attrs then
		boxTable:attr(self.attrs)
	end

	-- Add the left-hand image.
	local row = boxTable:tag('tr')
	if self.imageLeft then
		local imageLeftCell = row:tag('td'):addClass('mbox-image')
		if self.imageCellDiv then
			-- If we are using a div, redefine imageLeftCell so that the image
			-- is inside it. Divs use style="width: 52px;", which limits the
			-- image width to 52px. If any images in a div are wider than that,
			-- they may overlap with the text or cause other display problems.
			imageLeftCell = imageLeftCell:tag('div'):addClass('mbox-image-div')
		end
		imageLeftCell:wikitext(self.imageLeft or nil)
	elseif self.imageEmptyCell then
		-- Some message boxes define an empty cell if no image is specified, and
		-- some don't. The old template code in templates where empty cells are
		-- specified gives the following hint: "No image. Cell with some width
		-- or padding necessary for text cell to have 100% width."
		row:tag('td')
			:addClass('mbox-empty-cell')
	end

	-- Add the text.
	local textCell = row:tag('td'):addClass('mbox-text')
	if self.useCollapsibleTextFields then
		-- The message box uses advanced text parameters that allow things to be
		-- collapsible. At the moment, only ambox uses this.
		textCell:cssText(self.textstyle or nil)
		local textCellDiv = textCell:tag('div')
		textCellDiv
			:addClass('mbox-text-span')
			:wikitext(self.issue or nil)
		if (self.talk or self.fix) then
			textCellDiv:tag('span')
				:addClass('hide-when-compact')
				:wikitext(self.talk and (' ' .. self.talk) or nil)
				:wikitext(self.fix and (' ' .. self.fix) or nil)
		end
		textCellDiv:wikitext(self.date and (' ' .. self.date) or nil)
		if self.info and not self.isSmall then
			textCellDiv
				:tag('span')
				:addClass('hide-when-compact')
				:wikitext(self.info and (' ' .. self.info) or nil)
		end
		if self.removalNotice then
			textCellDiv:tag('span')
				:addClass('hide-when-compact')
				:tag('i')
					:wikitext(string.format(" (%s)", self.removalNotice))
		end
	else
		-- Default text formatting - anything goes.
		textCell
			:cssText(self.textstyle or nil)
			:wikitext(self.text or nil)
	end

	-- Add the right-hand image.
	if self.imageRight then
		local imageRightCell = row:tag('td'):addClass('mbox-imageright')
		if self.imageCellDiv then
			-- If we are using a div, redefine imageRightCell so that the image
			-- is inside it.
			imageRightCell = imageRightCell:tag('div'):addClass('mbox-image-div')
		end
		imageRightCell
			:wikitext(self.imageRight or nil)
	end

	-- Add the below row.
	if self.below then
		boxTable:tag('tr')
			:tag('td')
				:attr('colspan', self.imageRight and '3' or '2')
				:addClass('mbox-text')
				:cssText(self.textstyle or nil)
				:wikitext(self.below or nil)
	end

	-- Add error message for invalid type parameters.
	if self.invalidTypeError then
		root:tag('div')
			:addClass('mbox-invalid-type')
			:wikitext(string.format(
				'This message box is using an invalid "type=%s" parameter and needs fixing.',
				self.type or ''
			))
	end

	-- Add categories.
	root:wikitext(self:renderCategories() or nil)

	return tostring(root)
end

--------------------------------------------------------------------------------
-- Exports
--------------------------------------------------------------------------------

local p, mt = {}, {}

function p._exportClasses()
	-- For testing.
	return {
		MessageBox = MessageBox
	}
end

function p.main(boxType, args, cfgTables)
	local box = MessageBox.new(boxType, args, cfgTables or mw.loadData(CONFIG_MODULE))
	box:setParameters()
	box:setCategories()
	return box:export()
end

function mt.__index(t, k)
	return function (frame)
		if not getArgs then
			getArgs = require('Module:Arguments').getArgs
		end
		return t.main(k, getArgs(frame, {trim = false, removeBlanks = false}))
	end
end

return setmetatable(p, mt)


Module:Category handler

[edit]
--------------------------------------------------------------------------------
--                                                                            --
--                              CATEGORY HANDLER                              --
--                                                                            --
--      This module implements the  template in Lua,      --
--      with a few improvements: all namespaces and all namespace aliases     --
--      are supported, and namespace names are detected automatically for     --
--      the local wiki. This module requires [[Module:Namespace detect]]      --
--      and [[Module:Yesno]] to be available on the local wiki. It can be     --
--      configured for different wikis by altering the values in              --
--      [[Module:Category handler/config]], and pages can be blacklisted      --
--      from categorisation by using [[Module:Category handler/blacklist]].   --
--                                                                            --
--------------------------------------------------------------------------------

-- Load required modules
local yesno = require('Module:Yesno')

-- Lazily load things we don't always need
local mShared, mappings

local p = {}

--------------------------------------------------------------------------------
-- Helper functions
--------------------------------------------------------------------------------

local function trimWhitespace(s, removeBlanks)
	if type(s) ~= 'string' then
		return s
	end
	s = s:match('^%s*(.-)%s*$')
	if removeBlanks then
		if s ~= '' then
			return s
		else
			return nil
		end
	else
		return s
	end
end

--------------------------------------------------------------------------------
-- CategoryHandler class
--------------------------------------------------------------------------------

local CategoryHandler = {}
CategoryHandler.__index = CategoryHandler

function CategoryHandler.new(data, args)
	local obj = setmetatable({ _data = data, _args = args }, CategoryHandler)
	
	-- Set the title object
	do
		local pagename = obj:parameter('demopage')
		local success, titleObj
		if pagename then
			success, titleObj = pcall(mw.title.new, pagename)
		end
		if success and titleObj then
			obj.title = titleObj
			if titleObj == mw.title.getCurrentTitle() then
				obj._usesCurrentTitle = true
			end
		else
			obj.title = mw.title.getCurrentTitle()
			obj._usesCurrentTitle = true
		end
	end

	-- Set suppression parameter values
	for _, key in ipairs{'nocat', 'categories'} do
		local value = obj:parameter(key)
		value = trimWhitespace(value, true)
		obj['_' .. key] = yesno(value)
	end
	do
		local subpage = obj:parameter('subpage')
		local category2 = obj:parameter('category2')
		if type(subpage) == 'string' then
			subpage = mw.ustring.lower(subpage)
		end
		if type(category2) == 'string' then
			subpage = mw.ustring.lower(category2)
		end
		obj._subpage = trimWhitespace(subpage, true)
		obj._category2 = trimWhitespace(category2) -- don't remove blank values
	end
	return obj
end

function CategoryHandler:parameter(key)
	local parameterNames = self._data.parameters[key]
	local pntype = type(parameterNames)
	if pntype == 'string' or pntype == 'number' then
		return self._args[parameterNames]
	elseif pntype == 'table' then
		for _, name in ipairs(parameterNames) do
			local value = self._args[name]
			if value ~= nil then
				return value
			end
		end
		return nil
	else
		error(string.format(
			'invalid config key "%s"',
			tostring(key)
		), 2)
	end
end

function CategoryHandler:isSuppressedByArguments()
	return
		-- See if a category suppression argument has been set.
		self._nocat == true
		or self._categories == false
		or (
			self._category2
			and self._category2 ~= self._data.category2Yes
			and self._category2 ~= self._data.category2Negative
		)

		-- Check whether we are on a subpage, and see if categories are
		-- suppressed based on our subpage status.
		or self._subpage == self._data.subpageNo and self.title.isSubpage
		or self._subpage == self._data.subpageOnly and not self.title.isSubpage
end

function CategoryHandler:shouldSkipBlacklistCheck()
	-- Check whether the category suppression arguments indicate we
	-- should skip the blacklist check.
	return self._nocat == false
		or self._categories == true
		or self._category2 == self._data.category2Yes
end

function CategoryHandler:matchesBlacklist()
	if self._usesCurrentTitle then
		return self._data.currentTitleMatchesBlacklist
	else
		mShared = mShared or require('Module:Category handler/shared')
		return mShared.matchesBlacklist(
			self.title.prefixedText,
			mw.loadData('Module:Category handler/blacklist')
		)
	end
end

function CategoryHandler:isSuppressed()
	-- Find if categories are suppressed by either the arguments or by
	-- matching the blacklist.
	return self:isSuppressedByArguments()
		or not self:shouldSkipBlacklistCheck() and self:matchesBlacklist()
end

function CategoryHandler:getNamespaceParameters()
	if self._usesCurrentTitle then
		return self._data.currentTitleNamespaceParameters
	else
		if not mappings then
			mShared = mShared or require('Module:Category handler/shared')
			mappings = mShared.getParamMappings(true) -- gets mappings with mw.loadData
		end
		return mShared.getNamespaceParameters(
			self.title,
			mappings
		)
	end
end

function CategoryHandler:namespaceParametersExist()
	-- Find whether any namespace parameters have been specified.
	-- We use the order "all" --> namespace params --> "other" as this is what
	-- the old template did.
	if self:parameter('all') then
		return true
	end
	if not mappings then
		mShared = mShared or require('Module:Category handler/shared')
		mappings = mShared.getParamMappings(true) -- gets mappings with mw.loadData
	end
	for ns, params in pairs(mappings) do
		for i, param in ipairs(params) do
			if self._args[param] then
				return true
			end
		end
	end
	if self:parameter('other') then
		return true
	end
	return false
end

function CategoryHandler:getCategories()
	local params = self:getNamespaceParameters()
	local nsCategory
	for i, param in ipairs(params) do
		local value = self._args[param]
		if value ~= nil then
			nsCategory = value
			break
		end
	end
	if nsCategory ~= nil or self:namespaceParametersExist() then
		-- Namespace parameters exist - advanced usage.
		if nsCategory == nil then
			nsCategory = self:parameter('other')
		end
		local ret = {self:parameter('all')}
		local numParam = tonumber(nsCategory)
		if numParam and numParam >= 1 and math.floor(numParam) == numParam then
			-- nsCategory is an integer
			ret[#ret + 1] = self._args[numParam]
		else
			ret[#ret + 1] = nsCategory
		end
		if #ret < 1 then
			return nil
		else
			return table.concat(ret)
		end
	elseif self._data.defaultNamespaces[self.title.namespace] then
		-- Namespace parameters don't exist, simple usage.
		return self._args[1]
	end
	return nil
end

--------------------------------------------------------------------------------
-- Exports
--------------------------------------------------------------------------------

local p = {}

function p._exportClasses()
	-- Used for testing purposes.
	return {
		CategoryHandler = CategoryHandler
	}
end

function p._main(args, data)
	data = data or mw.loadData('Module:Category handler/data')
	local handler = CategoryHandler.new(data, args)
	if handler:isSuppressed() then
		return nil
	end
	return handler:getCategories()
end

function p.main(frame, data)
	data = data or mw.loadData('Module:Category handler/data')
	local args = require('Module:Arguments').getArgs(frame, {
		wrappers = data.wrappers,
		valueFunc = function (k, v)
			v = trimWhitespace(v)
			if type(k) == 'number' then
				if v ~= '' then
					return v
				else
					return nil
				end
			else
				return v
			end
		end
	})
	return p._main(args, data)
end

return p

Module:Yesno

[edit]
-- Function allowing for consistent treatment of boolean-like wikitext input.
-- It works similarly to the template .

return function (val, default)
	-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
	-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
	-- following line.
	val = type(val) == 'string' and val:lower() or val
	if val == nil then
		return nil
	elseif val == true 
		or val == 'yes'
		or val == 'y'
		or val == 'true'
		or val == 't'
		or val == 'on'
		or tonumber(val) == 1
	then
		return true
	elseif val == false
		or val == 'no'
		or val == 'n'
		or val == 'false'
		or val == 'f'
		or val == 'off'
		or tonumber(val) == 0
	then
		return false
	else
		return default
	end
end


Module:Message box/configuration

[edit]
--------------------------------------------------------------------------------
--                          Message box configuration                         --
--                                                                            --
-- This module contains configuration data for [[Module:Message box]].        --
--------------------------------------------------------------------------------

return {
	
	fmbox = {
		types = {
			warning = {
				class = 'fmbox-warning',
				image = 'Ambox warning pn.svg'
			},
			editnotice = {
				class = 'fmbox-editnotice',
				image = 'Information icon4.svg'
			},
			system = {
				class = 'fmbox-system',
				image = 'Information icon4.svg'
			}
		},
		default              = 'system',
		showInvalidTypeError = true,
		classes              = {'fmbox'},
		imageEmptyCell       = false,
		imageRightNone       = false,
		templatestyles       = 'Module:Message box/fmbox.css'
	},
	
	mbox = {
		types = {
			warning = {
				class = 'mbox-warning',
				image = 'Commons-emblem-late.svg'
			},
			speedy = {
				class = 'mbox-speedy',
				image = 'Commons-emblem-urgent.svg'
			},
			serious = {
				class = 'mbox-serious',
				image = 'Gnome-emblem-important.svg'
			},
			delete = {
				class = 'mbox-delete',
				image = 'Gnome-emblem-important.svg'
			},
			stop = {
				class = 'mbox-stop',
				image = 'Commons-emblem-hand.svg'
			},
			content = {
				class = 'mbox-content',
				image = 'Commons-emblem-issue.svg'
			},
			query = {
				class = 'mbox-query',
				image = 'Commons-emblem-query.svg'
			},
			issue = {
				class = 'mbox-issue',
				image = 'Commons-emblem-issue.svg'
			},
			style = {
				class = 'mbox-style',
				image = 'Gnome-edit-clear.svg'
			},
			move = {
				class = 'mbox-move',
				image = 'Merge-split-transwiki default.svg'
			},
			protection = {
				class = 'mbox-protection',
				image = 'Gnome-security-medium.svg'
			},
			license = {
				class = 'mbox-license licensetpl',
				image = 'Commons-emblem-copyright.svg'
			},
			legal = {
				class = 'mbox-legal',
				image = 'Commons-emblem-legal.svg'
			},
			honor = {
				class = 'mbox-honor',
				image = 'Gnome-help-about.svg'
			},
			growth = {
				class = 'mbox-growth',
				image = 'Dialog-apply.svg'
			},
			shit = {
				class = 'mbox-shit',
				image = 'OpenMoji-color 1F4A9.svg'
			},
			message = {
				class = 'mbox-message',
				image = 'Tango-style info icon.svg'
			},
			notice = {
				class = 'mbox-notice',
				image = 'Commons-emblem-notice.svg'
			}
		},
		default              = 'notice',
		showInvalidTypeError = true,
		classes              = {'messagebox'},
		allowSmall           = true,
		imageEmptyCell       = true,
		below                = true,
		deprecateLicense     = true,
		templateCategory     = 'Main message boxes',
		templatestyles       = 'Module:Message box/sandbox/mbox.css'
	},
	
	tmbox = {
		types = {
			speedy = {
				class = 'tmbox-speedy',
				image = 'Ambox warning pn.svg'
			},
			delete = {
				class = 'tmbox-delete',
				image = 'Ambox warning pn.svg'
			},
			content = {
				class = 'tmbox-content',
				image = 'Ambox important.svg'
			},
			style = {
				class = 'tmbox-style',
				image = 'Edit-clear.svg'
			},
			move = {
				class = 'tmbox-move',
				image = 'Merge-split-transwiki default.svg'
			},
			protection = {
				class = 'tmbox-protection',
				image = 'Semi-protection-shackle-keyhole.svg'
			},
			notice = {
				class = 'tmbox-notice',
				image = 'Information icon4.svg'
			}
		},
		default              = 'notice',
		showInvalidTypeError = true,
		classes              = {'tmbox'},
		allowSmall           = true,
		imageRightNone       = true,
		imageEmptyCell       = true,
		templateCategory     = 'Talk message boxes',
		templatestyles       = 'Module:Message box/sandbox/tmbox.css'
	}
}


Module:Category handler/data

[edit]
-- This module assembles data to be passed to [[Module:Category handler]] using
-- mw.loadData. This includes the configuration data and whether the current
-- page matches the title blacklist.

local data = require('Module:Category handler/config')
local mShared = require('Module:Category handler/shared')
local blacklist = require('Module:Category handler/blacklist')
local title = mw.title.getCurrentTitle()

data.currentTitleMatchesBlacklist = mShared.matchesBlacklist(
	title.prefixedText,
	blacklist
)

data.currentTitleNamespaceParameters = mShared.getNamespaceParameters(
	title,
	mShared.getParamMappings()
)

return data


Module:Category handler/config

[edit]
--------------------------------------------------------------------------------
--            [[Module:Category handler]] configuration data                  --
--       Language-specific parameter names and values can be set here.        --
--       For blacklist config, see [[Module:Category handler/blacklist]].     --
--------------------------------------------------------------------------------

local cfg = {} -- Don't edit this line.

--------------------------------------------------------------------------------
--                       Start configuration data                             --
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
--                              Parameter names                               --
-- These configuration items specify custom parameter names.                  --
-- To add one extra name, you can use this format:                            --
--                                                                            --
-- foo = 'parameter name',                                                    --
--                                                                            --
-- To add multiple names, you can use this format:                            --
--                                                                            --
-- foo = {'parameter name 1', 'parameter name 2', 'parameter name 3'},        --
--------------------------------------------------------------------------------

cfg.parameters = {
	
	-- The nocat and categories parameter suppress
	-- categorisation. They are used with Module:Yesno, and work as follows:
	--
	-- cfg.nocat:
	-- Result of yesno()                        Effect
	-- true                                     Categorisation is suppressed
	-- false                                    Categorisation is allowed, and
	--                                          the blacklist check is skipped
	-- nil                                      Categorisation is allowed
	--
	-- cfg.categories:
	-- Result of yesno()                        Effect
	-- true                                     Categorisation is allowed, and
	--                                          the blacklist check is skipped
	-- false                                    Categorisation is suppressed
	-- nil                                      Categorisation is allowed
	nocat = 'nocat',
	categories = 'categories',
	
	-- The parameter name for the legacy "category2" parameter. This skips the
	-- blacklist if set to the cfg.category2Yes value, and suppresses
	-- categorisation if present but equal to anything other than
	-- cfg.category2Yes or cfg.category2Negative.
	category2 = 'category2',
	
	-- cfg.subpage is the parameter name to specify how to behave on subpages.
	subpage = 'subpage',
	
	-- The parameter for data to return in all namespaces.
	all = 'all',
	
	-- The parameter name for data to return if no data is specified for the
	-- namespace that is detected.
	other = 'other',
	
	-- The parameter name used to specify a page other than the current page;
	-- used for testing and demonstration.
	demopage = 'page',
}

--------------------------------------------------------------------------------
--                              Parameter values                              --
-- These are set values that can be used with certain parameters. Only one    --
-- value can be specified, like this:                                         --
--                                                                            --
-- cfg.foo = 'value name'                                                     --                                               --
--------------------------------------------------------------------------------

-- The following settings are used with the cfg.category2 parameter. Setting
-- cfg.category2 to cfg.category2Yes skips the blacklist, and if cfg.category2
-- is present but equal to anything other than cfg.category2Yes or
-- cfg.category2Negative then it supresses cateogrisation.
cfg.category2Yes = 'yes'
cfg.category2Negative = '¬'

-- The following settings are used with the cfg.subpage parameter.
-- cfg.subpageNo is the value to specify to not categorise on subpages;
-- cfg.subpageOnly is the value to specify to only categorise on subpages.
cfg.subpageNo = 'no'
cfg.subpageOnly = 'only'

--------------------------------------------------------------------------------
--                           Default namespaces                               --
-- This is a table of namespaces to categorise by default. The keys are the   --
-- namespace numbers.                                                         --
--------------------------------------------------------------------------------

cfg.defaultNamespaces = {
	[  0] = true, -- main
	[  6] = true, -- file
	[ 12] = true, -- help
	[ 14] = true, -- category
	[100] = true, -- portal
	[108] = true, -- book
}

--------------------------------------------------------------------------------
--                                Wrappers                                    --
-- This is a wrapper template or a list of wrapper templates to be passed to  --
-- [[Module:Arguments]].                                                      --
--------------------------------------------------------------------------------

cfg.wrappers = 'Template:Category handler'

--------------------------------------------------------------------------------
--                           End configuration data                           --
--------------------------------------------------------------------------------

return cfg -- Don't edit this line.


Module:Category handler/shared

[edit]
-- This module contains shared functions used by [[Module:Category handler]]
-- and its submodules.

local p = {}

function p.matchesBlacklist(page, blacklist)
	for i, pattern in ipairs(blacklist) do
		local match = mw.ustring.match(page, pattern)
		if match then
			return true
		end
	end
	return false
end

function p.getParamMappings(useLoadData)
	local dataPage = 'Module:Namespace detect/data'
	if useLoadData then
		return mw.loadData(dataPage).mappings
	else
		return require(dataPage).mappings
	end
end

function p.getNamespaceParameters(titleObj, mappings)
	-- We don't use title.nsText for the namespace name because it adds
	-- underscores.
	local mappingsKey
	if titleObj.isTalkPage then
		mappingsKey = 'talk'
	else
		mappingsKey = mw.site.namespaces[titleObj.namespace].name
	end
	mappingsKey = mw.ustring.lower(mappingsKey)
	return mappings[mappingsKey] or {}
end

return p


Module:Category handler/blacklist

[edit]
-- This module contains the blacklist used by [[Module:Category handler]].
-- Pages that match Lua patterns in this list will not be categorised unless
-- categorisation is explicitly requested.

return {
    '^Main Page$', -- don't categorise the main page.
 
    -- Don't categorise the following pages or their subpages.
    -- "%f[/\0]" matches if the next character is "/" or the end of the string.
    '^Wikipedia:Cascade%-protected items%f[/\0]',
    '^User:UBX%f[/\0]', -- The userbox "template" space.
    '^User talk:UBX%f[/\0]',
 
    -- Don't categorise subpages of these pages, but allow
    -- categorisation of the base page.
    '^Wikipedia:Template messages/.*$',
 
    '/[aA]rchive' -- Don't categorise archives.
}


Module:Namespace detect/data

[edit]
--------------------------------------------------------------------------------
--                          Namespace detect data                             --
-- This module holds data for [[Module:Namespace detect]] to be loaded per    --
-- page, rather than per #invoke, for performance reasons.                    --
--------------------------------------------------------------------------------

local cfg = require('Module:Namespace detect/config')

local function addKey(t, key, defaultKey)
	if key ~= defaultKey then
		t[#t + 1] = key
	end
end

-- Get a table of parameters to query for each default parameter name.
-- This allows wikis to customise parameter names in the cfg table while
-- ensuring that default parameter names will always work. The cfg table
-- values can be added as a string, or as an array of strings.

local defaultKeys = {
	'main',
	'talk',
	'other',
	'subjectns',
	'demospace',
	'demopage'
}

local argKeys = {}
for i, defaultKey in ipairs(defaultKeys) do
	argKeys[defaultKey] = {defaultKey}
end

for defaultKey, t in pairs(argKeys) do
	local cfgValue = cfg[defaultKey]
	local cfgValueType = type(cfgValue)
	if cfgValueType == 'string' then
		addKey(t, cfgValue, defaultKey)
	elseif cfgValueType == 'table' then
		for i, key in ipairs(cfgValue) do
			addKey(t, key, defaultKey)
		end
	end
	cfg[defaultKey] = nil -- Free the cfg value as we don't need it any more.
end

local function getParamMappings()
	--[[
	-- Returns a table of how parameter names map to namespace names. The keys
	-- are the actual namespace names, in lower case, and the values are the
	-- possible parameter names for that namespace, also in lower case. The
	-- table entries are structured like this:
	-- {
	--   [''] = {'main'},
	--   ['wikipedia'] = {'wikipedia', 'project', 'wp'},
	--   ...
	-- }
	--]]
	local mappings = {}
	local mainNsName = mw.site.subjectNamespaces[0].name
	mainNsName = mw.ustring.lower(mainNsName)
	mappings[mainNsName] = mw.clone(argKeys.main)
	mappings['talk'] = mw.clone(argKeys.talk)
	for nsid, ns in pairs(mw.site.subjectNamespaces) do
		if nsid ~= 0 then -- Exclude main namespace.
			local nsname = mw.ustring.lower(ns.name)
			local canonicalName = mw.ustring.lower(ns.canonicalName)
			mappings[nsname] = {nsname}
			if canonicalName ~= nsname then
				table.insert(mappings[nsname], canonicalName)
			end
			for _, alias in ipairs(ns.aliases) do
				table.insert(mappings[nsname], mw.ustring.lower(alias))
			end
		end
	end
	return mappings
end

return {
	argKeys = argKeys,
	cfg = cfg,
	mappings = getParamMappings()
}

User:Pd4u/doc9

Module:Namespace detect/config

[edit]
--------------------------------------------------------------------------------
--                    Namespace detect configuration data                     --
--                                                                            --
-- This module stores configuration data for Module:Namespace detect. Here    --
-- you can localise the module to your wiki's language.                       --
--                                                                            --
-- To activate a configuration item, you need to uncomment it. This means     --
-- that you need to remove the text "-- " at the start of the line.           --
--------------------------------------------------------------------------------

local cfg = {} -- Don't edit this line.

--------------------------------------------------------------------------------
--                              Parameter names                               --
-- These configuration items specify custom parameter names. Values added     --
-- here will work in addition to the default English parameter names.         --
-- To add one extra name, you can use this format:                            --
--                                                                            --
-- cfg.foo = 'parameter name'                                                 --
--                                                                            --
-- To add multiple names, you can use this format:                            --
--                                                                            --
-- cfg.foo = {'parameter name 1', 'parameter name 2', 'parameter name 3'}     --
--------------------------------------------------------------------------------

---- This parameter displays content for the main namespace:
-- cfg.main = 'main'

---- This parameter displays in talk namespaces:
-- cfg.talk = 'talk'

---- This parameter displays content for "other" namespaces (namespaces for which
---- parameters have not been specified):
-- cfg.other = 'other'

---- This parameter makes talk pages behave as though they are the corresponding
---- subject namespace. Note that this parameter is used with [[Module:Yesno]].
---- Edit that module to change the default values of "yes", "no", etc.
-- cfg.subjectns = 'subjectns'

---- This parameter sets a demonstration namespace:
-- cfg.demospace = 'demospace'

---- This parameter sets a specific page to compare:
cfg.demopage = 'page'

--------------------------------------------------------------------------------
--                           Table configuration                              --
-- These configuration items allow customisation of the "table" function,     --
-- used to generate a table of possible parameters in the module              --
-- documentation.                                                             --
--------------------------------------------------------------------------------

---- The header for the namespace column in the wikitable containing the list of
---- possible subject-space parameters.
-- cfg.wikitableNamespaceHeader = 'Namespace'

---- The header for the wikitable containing the list of possible subject-space
---- parameters.
-- cfg.wikitableAliasesHeader = 'Aliases'

--------------------------------------------------------------------------------
--                        End of configuration data                           --
--------------------------------------------------------------------------------

return cfg -- Don't edit this line.


Module:Unsubst

[edit]
local p = {}

local specialParams = {
	['$B'] = 'template content',
}

p[''] = function ( frame )
	if not frame:getParent() then
		error( '<strong class="error"><span class="scribunto-error mw-scribunto-error-baaafe91">Lua error in Module:Unsubst at line 12: &lt;strong class=&quot;error&quot;&gt;&lt;span class=&quot;scribunto-error mw-scribunto-error-93ae4ee5&quot;&gt;Lua error in Module:Unsubst at line 12: {{#invoke:Unsubst|}} requires parameter $B (template content).&lt;/span&gt;&lt;/strong&gt; requires parameter $B (template content).</span></strong> makes no sense without a parent frame' )
	end
	if not frame.args['$B'] then
		error( '<strong class="error"><span class="scribunto-error mw-scribunto-error-baaafe91">Lua error in Module:Unsubst at line 12: &lt;strong class=&quot;error&quot;&gt;&lt;span class=&quot;scribunto-error mw-scribunto-error-93ae4ee5&quot;&gt;Lua error in Module:Unsubst at line 12: {{#invoke:Unsubst|}} requires parameter $B (template content).&lt;/span&gt;&lt;/strong&gt; requires parameter $B (template content).</span></strong> requires parameter $B (template content)' )
	end
	
	if mw.isSubsting() then
		---- substing
		-- Combine passed args with passed defaults
		local args = {}
		for k, v in pairs( frame.args ) do
			if not specialParams[k] then
				if v == '__DATE__' then
					v = mw.getContentLanguage():formatDate( 'F Y' )
				end
				args[k] = v
			end
		end
		for k, v in pairs( frame:getParent().args ) do
			args[k] = v
		end

		-- Build an equivalent template invocation
		-- First, find the title to use
		local titleobj = mw.title.new(frame:getParent():getTitle())
		local title
		if titleobj.namespace == 10 then -- NS_TEMPLATE
			title = titleobj.text
		elseif titleobj.namespace == 0 then -- NS_MAIN
			title = ':' .. titleobj.text
		else
			title = titleobj.prefixedText
		end

		-- Build the invocation body with numbered args first, then named
		local ret = '{{' .. title
		for k, v in ipairs( args ) do
			if string.find( v, '=', 1, true ) then
				-- likely something like 1=foo=bar, we need to do it as a named arg
				break
			end
			ret = ret .. '|' .. v
			args[k] = nil
		end
		for k, v in pairs( args ) do
			ret = ret .. '|' .. k .. '=' .. v
		end
		
		return ret .. '}}'
	else
		---- Not substing
		-- Just return the "body"
		return frame.args['$B']
	end
end

return p

User:Pd4u/doc9

Module:List

[edit]
-- This module outputs different kinds of lists. At the moment, bulleted,
-- unbulleted, horizontal, ordered, and horizontal ordered lists are supported.

local libUtil = require('libraryUtil')
local checkType = libUtil.checkType
local mTableTools = require('Module:TableTools')

local p = {}

local listTypes = {
	['bulleted'] = true,
	['unbulleted'] = true,
	['horizontal'] = true,
	['ordered'] = true,
	['horizontal_ordered'] = true
}

function p.makeListData(listType, args)
	-- Constructs a data table to be passed to p.renderList.
	local data = {}

	-- Classes
	data.classes = {}
	if listType == 'horizontal' or listType == 'horizontal_ordered' then
		table.insert(data.classes, 'hlist hlist-separated')
	elseif listType == 'unbulleted' then
		table.insert(data.classes, 'plainlist')
	end
	table.insert(data.classes, args.class)

	-- Main div style
	data.style = args.style

	-- Indent for horizontal lists
	if listType == 'horizontal' or listType == 'horizontal_ordered' then
		local indent = tonumber(args.indent)
		indent = indent and indent * 1.6 or 0
		if indent > 0 then
			data.marginLeft = indent .. 'em'
		end
	end
	
	-- List style types for ordered lists
	-- This could be "1, 2, 3", "a, b, c", or a number of others. The list style
	-- type is either set by the "type" attribute or the "list-style-type" CSS
	-- property.
	if listType == 'ordered' or listType == 'horizontal_ordered' then 
		data.listStyleType = args.list_style_type or args['list-style-type']
		data.type = args['type']

		-- Detect invalid type attributes and attempt to convert them to
		-- list-style-type CSS properties.
		if data.type 
			and not data.listStyleType
			and not tostring(data.type):find('^%s*[1AaIi]%s*$')
		then
			data.listStyleType = data.type
			data.type = nil
		end
	end
	
	-- List tag type
	if listType == 'ordered' or listType == 'horizontal_ordered' then
		data.listTag = 'ol'
	else
		data.listTag = 'ul'
	end

	-- Start number for ordered lists
	data.start = args.start
	if listType == 'horizontal_ordered' then
		-- Apply fix to get start numbers working with horizontal ordered lists.
		local startNum = tonumber(data.start)
		if startNum then
			data.counterReset = 'listitem ' .. tostring(startNum - 1)
		end
	end

	-- List style
	 -- ul_style and ol_style are included for backwards compatibility. No
	 -- distinction is made for ordered or unordered lists.
	data.listStyle = args.list_style

	-- List items
	-- li_style is included for backwards compatibility. item_style was included
	-- to be easier to understand for non-coders.
	data.itemStyle = args.item_style or args.li_style
	data.items = {}
	for i, num in ipairs(mTableTools.numKeys(args)) do
		local item = {}
		item.content = args[num]
		item.style = args['item' .. tostring(num) .. '_style']
			or args['item_style' .. tostring(num)]
		item.value = args['item' .. tostring(num) .. '_value']
			or args['item_value' .. tostring(num)]
		table.insert(data.items, item)
	end
	
	return data
end

function p.renderList(data)
	-- Renders the list HTML.
	
	-- Return the blank string if there are no list items.
	if type(data.items) ~= 'table' or #data.items < 1 then
		return ''
	end
	
	-- Render the main div tag.
	local root = mw.html.create('div')
	for i, class in ipairs(data.classes or {}) do
		root:addClass(class)
	end
	root:css{['margin-left'] = data.marginLeft}
	if data.style then
		root:cssText(data.style)
	end

	-- Render the list tag.
	local list = root:tag(data.listTag or 'ul')
	list
		:attr{start = data.start, type = data.type}
		:css{
			['counter-reset'] = data.counterReset,
			['list-style-type'] = data.listStyleType
		}
	if data.listStyle then
		list:cssText(data.listStyle)
	end

	-- Render the list items
	for i, t in ipairs(data.items or {}) do
		local item = list:tag('li')
		if data.itemStyle then
			item:cssText(data.itemStyle)
		end
		if t.style then
			item:cssText(t.style)
		end
		item
			:attr{value = t.value}
			:wikitext(t.content)
	end

	return tostring(root)
end

function p.renderTrackingCategories(args)
	local isDeprecated = false -- Tracks deprecated parameters.
	for k, v in pairs(args) do
		k = tostring(k)
		if k:find('^item_style%d+$') or k:find('^item_value%d+$') then
			isDeprecated = true
			break
		end
	end
	local ret = ''
	if isDeprecated then
		ret = ret .. '[[Category:List templates with deprecated parameters]]'
	end
	return ret
end

function p.makeList(listType, args)
	if not listType or not listTypes[listType] then
		error(string.format(
			"bad argument #1 to 'makeList' ('%s' is not a valid list type)",
			tostring(listType)
		), 2)
	end
	checkType('makeList', 2, args, 'table')
	local data = p.makeListData(listType, args)
	local list = p.renderList(data)
	local trackingCategories = p.renderTrackingCategories(args)
	return list .. trackingCategories
end

for listType in pairs(listTypes) do
	p[listType] = function (frame)
		local mArguments = require('Module:Arguments')
		local origArgs = mArguments.getArgs(frame)
		-- Copy all the arguments to a new table, for faster indexing.
		local args = {}
		for k, v in pairs(origArgs) do
			args[k] = v
		end
		return p.makeList(listType, args)
	end
end

return p


Module:TableTools

[edit]
--[[
------------------------------------------------------------------------------------
--                               TableTools                                       --
--                                                                                --
-- This module includes a number of functions for dealing with Lua tables.        --
-- It is a meta-module, meant to be called from other Lua modules, and should     --
-- not be called directly from #invoke.                                           --
------------------------------------------------------------------------------------
--]]

local libraryUtil = require('libraryUtil')

local p = {}

-- Define often-used variables and functions.
local floor = math.floor
local infinity = math.huge
local checkType = libraryUtil.checkType

--[[
------------------------------------------------------------------------------------
-- isPositiveInteger
--
-- This function returns true if the given value is a positive integer, and false
-- if not. Although it doesn't operate on tables, it is included here as it is
-- useful for determining whether a given table key is in the array part or the
-- hash part of a table.
------------------------------------------------------------------------------------
--]]
function p.isPositiveInteger(v)
	if type(v) == 'number' and v >= 1 and floor(v) == v and v < infinity then
		return true
	else
		return false
	end
end

--[[
------------------------------------------------------------------------------------
-- isNan
--
-- This function returns true if the given number is a NaN value, and false
-- if not. Although it doesn't operate on tables, it is included here as it is
-- useful for determining whether a value can be a valid table key. Lua will
-- generate an error if a NaN is used as a table key.
------------------------------------------------------------------------------------
--]]
function p.isNan(v)
	if type(v) == 'number' and tostring(v) == '-nan' then
		return true
	else
		return false
	end
end

--[[
------------------------------------------------------------------------------------
-- shallowClone
--
-- This returns a clone of a table. The value returned is a new table, but all
-- subtables and functions are shared. Metamethods are respected, but the returned
-- table will have no metatable of its own.
------------------------------------------------------------------------------------
--]]
function p.shallowClone(t)
	local ret = {}
	for k, v in pairs(t) do
		ret[k] = v
	end
	return ret
end

--[[
------------------------------------------------------------------------------------
-- removeDuplicates
--
-- This removes duplicate values from an array. Non-positive-integer keys are
-- ignored. The earliest value is kept, and all subsequent duplicate values are
-- removed, but otherwise the array order is unchanged.
------------------------------------------------------------------------------------
--]]
function p.removeDuplicates(t)
	checkType('removeDuplicates', 1, t, 'table')
	local isNan = p.isNan
	local ret, exists = {}, {}
	for i, v in ipairs(t) do
		if isNan(v) then
			-- NaNs can't be table keys, and they are also unique, so we don't need to check existence.
			ret[#ret + 1] = v
		else
			if not exists[v] then
				ret[#ret + 1] = v
				exists[v] = true
			end
		end	
	end
	return ret
end			

--[[
------------------------------------------------------------------------------------
-- numKeys
--
-- This takes a table and returns an array containing the numbers of any numerical
-- keys that have non-nil values, sorted in numerical order.
------------------------------------------------------------------------------------
--]]
function p.numKeys(t)
	checkType('numKeys', 1, t, 'table')
	local isPositiveInteger = p.isPositiveInteger
	local nums = {}
	for k, v in pairs(t) do
		if isPositiveInteger(k) then
			nums[#nums + 1] = k
		end
	end
	table.sort(nums)
	return nums
end

--[[
------------------------------------------------------------------------------------
-- affixNums
--
-- This takes a table and returns an array containing the numbers of keys with the
-- specified prefix and suffix. For example, for the table
-- {a1 = 'foo', a3 = 'bar', a6 = 'baz'} and the prefix "a", affixNums will
-- return {1, 3, 6}.
------------------------------------------------------------------------------------
--]]
function p.affixNums(t, prefix, suffix)
	checkType('affixNums', 1, t, 'table')
	checkType('affixNums', 2, prefix, 'string', true)
	checkType('affixNums', 3, suffix, 'string', true)

	local function cleanPattern(s)
		-- Cleans a pattern so that the magic characters ()%.[]*+-?^$ are interpreted literally.
		s = s:gsub('([%(%)%%%.%[%]%*%+%-%?%^%$])', '%%%1')
		return s
	end

	prefix = prefix or ''
	suffix = suffix or ''
	prefix = cleanPattern(prefix)
	suffix = cleanPattern(suffix)
	local pattern = '^' .. prefix .. '([1-9]%d*)' .. suffix .. '$'

	local nums = {}
	for k, v in pairs(t) do
		if type(k) == 'string' then			
			local num = mw.ustring.match(k, pattern)
			if num then
				nums[#nums + 1] = tonumber(num)
			end
		end
	end
	table.sort(nums)
	return nums
end

--[[
------------------------------------------------------------------------------------
-- numData
--
-- Given a table with keys like ("foo1", "bar1", "foo2", "baz2"), returns a table
-- of subtables in the format 
-- { [1] = {foo = 'text', bar = 'text'}, [2] = {foo = 'text', baz = 'text'} }
-- Keys that don't end with an integer are stored in a subtable named "other".
-- The compress option compresses the table so that it can be iterated over with
-- ipairs.
------------------------------------------------------------------------------------
--]]
function p.numData(t, compress)
	checkType('numData', 1, t, 'table')
	checkType('numData', 2, compress, 'boolean', true)
	local ret = {}
	for k, v in pairs(t) do
		local prefix, num = mw.ustring.match(tostring(k), '^([^0-9]*)([1-9][0-9]*)$')
		if num then
			num = tonumber(num)
			local subtable = ret[num] or {}
			if prefix == '' then
				-- Positional parameters match the blank string; put them at the start of the subtable instead.
				prefix = 1
			end
			subtable[prefix] = v
			ret[num] = subtable
		else
			local subtable = ret.other or {}
			subtable[k] = v
			ret.other = subtable
		end
	end
	if compress then
		local other = ret.other
		ret = p.compressSparseArray(ret)
		ret.other = other
	end
	return ret
end

--[[
------------------------------------------------------------------------------------
-- compressSparseArray
--
-- This takes an array with one or more nil values, and removes the nil values
-- while preserving the order, so that the array can be safely traversed with
-- ipairs.
------------------------------------------------------------------------------------
--]]
function p.compressSparseArray(t)
	checkType('compressSparseArray', 1, t, 'table')
	local ret = {}
	local nums = p.numKeys(t)
	for _, num in ipairs(nums) do
		ret[#ret + 1] = t[num]
	end
	return ret
end

--[[
------------------------------------------------------------------------------------
-- sparseIpairs
--
-- This is an iterator for sparse arrays. It can be used like ipairs, but can
-- handle nil values.
------------------------------------------------------------------------------------
--]]
function p.sparseIpairs(t)
	checkType('sparseIpairs', 1, t, 'table')
	local nums = p.numKeys(t)
	local i = 0
	local lim = #nums
	return function ()
		i = i + 1
		if i <= lim then
			local key = nums[i]
			return key, t[key]
		else
			return nil, nil
		end
	end
end

--[[
------------------------------------------------------------------------------------
-- size
--
-- This returns the size of a key/value pair table. It will also work on arrays,
-- but for arrays it is more efficient to use the # operator.
------------------------------------------------------------------------------------
--]]
function p.size(t)
	checkType('size', 1, t, 'table')
	local i = 0
	for k in pairs(t) do
		i = i + 1
	end
	return i
end

return p

User:Pd4u/doc9

Module:Infobox

[edit]
--
-- This module implements <table class="infobox" style="width:22em"></table>
--
 
local p = {}

local navbar = require('Module:Navbar')._navbar

local args = {}
local origArgs
local root

local function notempty( s ) return s and s:match( '%S' ) end

local function fixChildBoxes(sval, tt)
	if notempty(sval) then
		local marker = '<span class=special_infobox_marker>'
		local s = sval
		s = mw.ustring.gsub(s, '(<%s*[Tt][Rr])', marker .. '%1')
		s = mw.ustring.gsub(s, '(</[Tt][Rr]%s*>)', '%1' .. marker)
		if s:match(marker) then
			s = mw.ustring.gsub(s, marker .. '%s*' .. marker, '')
			s = mw.ustring.gsub(s, '([\r\n]|-[^\r\n]*[\r\n])%s*' .. marker, '%1')
			s = mw.ustring.gsub(s, marker .. '%s*([\r\n]|-)', '%1')
			s = mw.ustring.gsub(s, '(</[Cc][Aa][Pp][Tt][Ii][Oo][Nn]%s*>%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, '(<%s*[Tt][Aa][Bb][Ll][Ee][^<>]*>%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, '^(%{|[^\r\n]*[\r\n]%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s, '([\r\n]%{|[^\r\n]*[\r\n]%s*)' .. marker, '%1')
			s = mw.ustring.gsub(s,  marker .. '(%s*</[Tt][Aa][Bb][Ll][Ee]%s*>)', '%1')
			s = mw.ustring.gsub(s,  marker .. '(%s*\n|%})', '%1')
		end
		if s:match(marker) then
			local subcells = mw.text.split(s, marker)
			s = ''
			for k = 1, #subcells do
				if k == 1 then
					s = s .. subcells[k] .. '</' .. tt .. '></tr>'
				elseif k == #subcells then
					local rowstyle = ' style="display:none"'
					if notempty(subcells[k]) then rowstyle = ''	end
					s = s .. '<tr' .. rowstyle ..'><' .. tt .. ' colspan=2>\n' .. subcells[k]
				elseif notempty(subcells[k]) then
					if (k % 2) == 0 then
						s = s .. subcells[k]
					else
						s = s .. '<tr><' .. tt .. ' colspan=2>\n' .. subcells[k] .. '</' .. tt .. '></tr>'
					end
				end
			end
		end
		return s
	else
		return sval
	end
end

local function union(t1, t2)
    -- Returns the union of the values of two tables, as a sequence.
    local vals = {}
    for k, v in pairs(t1) do
        vals[v] = true
    end
    for k, v in pairs(t2) do
        vals[v] = true
    end
    local ret = {}
    for k, v in pairs(vals) do
        table.insert(ret, k)
    end
    return ret
end

local function getArgNums(prefix)
    -- Returns a table containing the numbers of the arguments that exist
    -- for the specified prefix. For example, if the prefix was 'data', and
    -- 'data1', 'data2', and 'data5' exist, it would return {1, 2, 5}.
    local nums = {}
    for k, v in pairs(args) do
        local num = tostring(k):match('^' .. prefix .. '([1-9]%d*)$')
        if num then table.insert(nums, tonumber(num)) end
    end
    table.sort(nums)
    return nums
end

local function addRow(rowArgs)
    -- Adds a row to the infobox, with either a header cell
    -- or a label/data cell combination.
    if rowArgs.header then
        root
            :tag('tr')
                :addClass(rowArgs.rowclass)
                :cssText(rowArgs.rowstyle)
                :attr('id', rowArgs.rowid)
                :tag('th')
                    :attr('colspan', 2)
                    :attr('id', rowArgs.headerid)
                    :addClass(rowArgs.class)
                    :addClass(args.headerclass)
                    :css('text-align', 'center')
                    :cssText(args.headerstyle)
                    :cssText(rowArgs.rowcellstyle)
                    :wikitext(fixChildBoxes(rowArgs.header, 'th'))
    elseif rowArgs.data then
        local row = root:tag('tr')
        row:addClass(rowArgs.rowclass)
        row:cssText(rowArgs.rowstyle)
        row:attr('id', rowArgs.rowid)
        if rowArgs.label then
            row
                :tag('th')
                    :attr('scope', 'row')
                    :attr('id', rowArgs.labelid)
                    :cssText(args.labelstyle)
                    :cssText(rowArgs.rowcellstyle)
                    :wikitext(rowArgs.label)
                    :done()
        end
        
        local dataCell = row:tag('td')
        if not rowArgs.label then 
            dataCell
                :attr('colspan', 2)
                :css('text-align', 'center') 
        end
        dataCell
            :attr('id', rowArgs.dataid)
            :addClass(rowArgs.class)
            :cssText(rowArgs.datastyle)
            :cssText(rowArgs.rowcellstyle)
            :newline()
            :wikitext(fixChildBoxes(rowArgs.data, 'td'))
    end
end

local function renderTitle()
    if not args.title then return end

    root
        :tag('caption')
            :addClass(args.titleclass)
            :cssText(args.titlestyle)
            :wikitext(args.title)
end

local function renderAboveRow()
    if not args.above then return end
    
    root
        :tag('tr')
            :tag('th')
                :attr('colspan', 2)
                :addClass(args.aboveclass)
                :css('text-align', 'center')
                :css('font-size', '125%')
                :css('font-weight', 'bold')
                :cssText(args.abovestyle)
                :wikitext(fixChildBoxes(args.above,'th'))
end

local function renderBelowRow()
    if not args.below then return end
    
    root
        :tag('tr')
            :tag('td')
                :attr('colspan', '2')
                :addClass(args.belowclass)
                :css('text-align', 'center')
                :cssText(args.belowstyle)
                :newline()
                :wikitext(fixChildBoxes(args.below,'td'))
end

local function renderSubheaders()
    if args.subheader then
        args.subheader1 = args.subheader
    end
    if args.subheaderrowclass then
        args.subheaderrowclass1 = args.subheaderrowclass
    end
    local subheadernums = getArgNums('subheader')
    for k, num in ipairs(subheadernums) do
        addRow({
            data = args['subheader' .. tostring(num)],
            datastyle = args.subheaderstyle or args['subheaderstyle' .. tostring(num)],
            class = args.subheaderclass,
            rowclass = args['subheaderrowclass' .. tostring(num)]
        })
    end
end

local function renderImages()
    if args.image then
        args.image1 = args.image
    end
    if args.caption then
        args.caption1 = args.caption
    end
    local imagenums = getArgNums('image')
    for k, num in ipairs(imagenums) do
        local caption = args['caption' .. tostring(num)]
        local data = mw.html.create():wikitext(args['image' .. tostring(num)])
        if caption then
            data
                :tag('div')
                    :cssText(args.captionstyle)
                    :wikitext(caption)
        end
        addRow({
            data = tostring(data),
            datastyle = args.imagestyle,
            class = args.imageclass,
            rowclass = args['imagerowclass' .. tostring(num)]
        })
    end
end

local function renderRows()
    -- Gets the union of the header and data argument numbers,
    -- and renders them all in order using addRow.
    local rownums = union(getArgNums('header'), getArgNums('data'))
    table.sort(rownums)
    for k, num in ipairs(rownums) do
        addRow({
            header = args['header' .. tostring(num)],
            label = args['label' .. tostring(num)],
            data = args['data' .. tostring(num)],
            datastyle = args.datastyle,
            class = args['class' .. tostring(num)],
            rowclass = args['rowclass' .. tostring(num)],
            rowstyle = args['rowstyle' .. tostring(num)],
            rowcellstyle = args['rowcellstyle' .. tostring(num)],
            dataid = args['dataid' .. tostring(num)],
            labelid = args['labelid' .. tostring(num)],
            headerid = args['headerid' .. tostring(num)],
            rowid = args['rowid' .. tostring(num)]
        })
    end
end

local function renderNavBar()
    if not args.name then return end
    
    root
        :tag('tr')
            :tag('td')
                :attr('colspan', '2')
                :css('text-align', 'right')
                :wikitext(navbar{
                    args.name,
                    mini = 1,
                })
end

local function renderItalicTitle()
    local italicTitle = args['italic title'] and mw.ustring.lower(args['italic title'])
    if italicTitle == '' or italicTitle == 'force' or italicTitle == 'yes' then
        root:wikitext(mw.getCurrentFrame():expandTemplate({title = 'italic title'}))
    end
end

local function renderTrackingCategories()
    if args.decat ~= 'yes' then
        if #(getArgNums('data')) == 0 and mw.title.getCurrentTitle().namespace == 0 then
            root:wikitext('[[Category:Articles which use infobox templates with no data rows]]')
        end
        if args.child == 'yes' and args.title then
            root:wikitext('[[Category:Pages which use embedded infobox templates with the title parameter]]')
        end
    end
end

local function _infobox()
    -- Specify the overall layout of the infobox, with special settings
    -- if the infobox is used as a 'child' inside another infobox.
    if args.child ~= 'yes' then
        root = mw.html.create('table')
        
        root
            :addClass('infobox')
            :addClass(args.bodyclass)
            :attr('lang', args.lang)
            :attr('dir', args.dir or (args.lang and 'auto' or nil))
            
            if args.subbox == 'yes' then
                root
                    :css('padding', '0')
                    :css('border', 'none')
                    :css('margin', '-3px')
                    :css('width', 'auto')
                    :css('min-width', '100%')
                    :css('font-size', '100%')
                    :css('clear', 'none')
                    :css('float', 'none')
                    :css('background-color', 'transparent')
            else
                root
                    :css('width', '22em')
            end
        root
            :cssText(args.bodystyle)
    
        renderTitle()
        renderAboveRow()
    else
        root = mw.html.create()
        
        root
            :wikitext(args.title)
    end

    renderSubheaders()
    renderImages() 
    renderRows() 
    renderBelowRow()  
    renderNavBar()
    renderItalicTitle()
    renderTrackingCategories()
    
    return tostring(root)
end

local function preprocessSingleArg(argName)
    -- If the argument exists and isn't blank, add it to the argument table.
    -- Blank arguments are treated as nil to match the behaviour of ParserFunctions.
    if origArgs[argName] and origArgs[argName] ~= '' then
        args[argName] = origArgs[argName]
    end
end

local function preprocessArgs(prefixTable, step)
    -- Assign the parameters with the given prefixes to the args table, in order, in batches
    -- of the step size specified. This is to prevent references etc. from appearing in the
    -- wrong order. The prefixTable should be an array containing tables, each of which has
    -- two possible fields, a "prefix" string and a "depend" table. The function always parses
    -- parameters containing the "prefix" string, but only parses parameters in the "depend"
    -- table if the prefix parameter is present and non-blank.
    if type(prefixTable) ~= 'table' then
        error("Non-table value detected for the prefix table", 2)
    end
    if type(step) ~= 'number' then
        error("Invalid step value detected", 2)
    end
    
    -- Get arguments without a number suffix, and check for bad input.
    for i,v in ipairs(prefixTable) do
        if type(v) ~= 'table' or type(v.prefix) ~= "string" or (v.depend and type(v.depend) ~= 'table') then
            error('Invalid input detected to preprocessArgs prefix table', 2)
        end
        preprocessSingleArg(v.prefix)
        -- Only parse the depend parameter if the prefix parameter is present and not blank.
        if args[v.prefix] and v.depend then
            for j, dependValue in ipairs(v.depend) do
                if type(dependValue) ~= 'string' then
                    error('Invalid "depend" parameter value detected in preprocessArgs')
                end
                preprocessSingleArg(dependValue)
            end
        end
    end

    -- Get arguments with number suffixes.
    local a = 1 -- Counter variable.
    local moreArgumentsExist = true
    while moreArgumentsExist == true do
        moreArgumentsExist = false
        for i = a, a + step - 1 do
            for j,v in ipairs(prefixTable) do
                local prefixArgName = v.prefix .. tostring(i)
                if origArgs[prefixArgName] then
                    moreArgumentsExist = true -- Do another loop if any arguments are found, even blank ones.
                    preprocessSingleArg(prefixArgName)
                end
                -- Process the depend table if the prefix argument is present and not blank, or
                -- we are processing "prefix1" and "prefix" is present and not blank, and
                -- if the depend table is present.
                if v.depend and (args[prefixArgName] or (i == 1 and args[v.prefix])) then
                    for j,dependValue in ipairs(v.depend) do
                        local dependArgName = dependValue .. tostring(i)
                        preprocessSingleArg(dependArgName)
                    end
                end
            end
        end
        a = a + step
    end
end
 
function p.infobox(frame)
    -- If called via #invoke, use the args passed into the invoking template.
    -- Otherwise, for testing purposes, assume args are being passed directly in.
    if frame == mw.getCurrentFrame() then
        origArgs = frame:getParent().args
    else
        origArgs = frame
    end
    
    -- Parse the data parameters in the same order that the old <table class="infobox" style="width:22em"></table> did, so that
    -- references etc. will display in the expected places. Parameters that depend on
    -- another parameter are only processed if that parameter is present, to avoid
    -- phantom references appearing in article reference lists.
    preprocessSingleArg('child')
    preprocessSingleArg('bodyclass')
    preprocessSingleArg('lang')
    preprocessSingleArg('dir')
    preprocessSingleArg('subbox')
    preprocessSingleArg('bodystyle')
    preprocessSingleArg('title')
    preprocessSingleArg('titleclass')
    preprocessSingleArg('titlestyle')
    preprocessSingleArg('above')
    preprocessSingleArg('aboveclass')
    preprocessSingleArg('abovestyle')
    preprocessArgs({
        {prefix = 'subheader', depend = {'subheaderstyle', 'subheaderrowclass'}}
    }, 10)
    preprocessSingleArg('subheaderstyle')
    preprocessSingleArg('subheaderclass')
    preprocessArgs({
        {prefix = 'image', depend = {'caption', 'imagerowclass'}}
    }, 10)
    preprocessSingleArg('captionstyle')
    preprocessSingleArg('imagestyle')
    preprocessSingleArg('imageclass')
    preprocessArgs({
        {prefix = 'header'},
        {prefix = 'data', depend = {'label'}},
        {prefix = 'rowclass'},
        {prefix = 'rowstyle'},
        {prefix = 'rowcellstyle'},
        {prefix = 'class'},
        {prefix = 'dataid'},
        {prefix = 'labelid'},
        {prefix = 'headerid'},
        {prefix = 'rowid'}
    }, 50)
    preprocessSingleArg('headerclass')
    preprocessSingleArg('headerstyle')
    preprocessSingleArg('labelstyle')
    preprocessSingleArg('datastyle')
    preprocessSingleArg('below')
    preprocessSingleArg('belowclass')
    preprocessSingleArg('belowstyle')
    preprocessSingleArg('name')
    args['italic title'] = origArgs['italic title'] -- different behaviour if blank or absent
    preprocessSingleArg('decat')
 
    return _infobox()
end
 
return p


Module:Effective_protection_level

[edit]
local p = {}

-- Returns the permission required to perform a given action on a given title.
-- If no title is specified, the title of the page being displayed is used.
function p._main(action, pagename)
	local title
	if type(pagename) == 'table' and pagename.prefixedText then
		title = pagename
	elseif pagename then
		title = mw.title.new(pagename)
	else
		title = mw.title.getCurrentTitle()
	end
	pagename = title.prefixedText
	if action == 'autoreview' then
		local level = mw.ext.FlaggedRevs.getStabilitySettings(title)
		level = level and level.autoreview
		if level == 'review' then
			return 'reviewer'
		elseif level ~= '' then
			return level
		else
			return nil -- not '*'. a page not being PC-protected is distinct from it being PC-protected with anyone able to review. also not '', as that would mean PC-protected but nobody can review
		end
	elseif action ~= 'edit' and action ~= 'move' and action ~= 'create' and action ~= 'upload' then
		error( 'First parameter must be one of edit, move, create, upload, autoreview', 2 )
	end
	if title.namespace == 8 then -- MediaWiki namespace
		if title.contentModel == 'javascript' or title.contentModel == 'css' then -- site JS or CSS page
			return 'interfaceadmin'
		else -- any non-JS/CSS MediaWiki page
			return 'sysop'
		end
	elseif title.namespace == 2 and title.isSubpage then
		if title.contentModel == 'javascript' or title.contentModel == 'css' then -- user JS or CSS page
			return 'interfaceadmin'
		elseif title.contentModel == 'json' then -- user JSON page
			return 'sysop'
		end
	end
	local level = title.protectionLevels[action] and title.protectionLevels[action][1]
	if level == 'sysop' or level == 'editprotected' then
		return 'sysop'
	elseif title.cascadingProtection.restrictions[action] and title.cascadingProtection.restrictions[action][1] then -- used by a cascading-protected page
		return 'sysop'
	elseif level == 'templateeditor' then
		return 'templateeditor'
	elseif action == 'move' then
		local blacklistentry = mw.ext.TitleBlacklist.test('edit', pagename) -- Testing action edit is correct, since this is for the source page. The target page name gets tested with action move.
		if blacklistentry and not blacklistentry.params.autoconfirmed then
			return 'templateeditor'
		elseif title.namespace == 6 then
			return 'filemover'
		elseif level == 'extendedconfirmed' then
			return 'extendedconfirmed'
		else
			return 'autoconfirmed'
		end
	end
	local blacklistentry = mw.ext.TitleBlacklist.test(action, pagename)
	if blacklistentry then
		if not blacklistentry.params.autoconfirmed then
			return 'templateeditor'
		elseif level == 'extendedconfirmed' then
			return 'extendedconfirmed'
		else
			return 'autoconfirmed'
		end
	elseif level == 'editsemiprotected' then -- create-semiprotected pages return this for some reason
		return 'autoconfirmed'
	elseif level then
		return level
	elseif action == 'upload' then
		return 'autoconfirmed'
	elseif action == 'create' and title.namespace % 2 == 0 and title.namespace ~= 118 then -- You need to be registered, but not autoconfirmed, to create non-talk pages other than drafts
		return 'user'
	else
		return '*'
	end
end

setmetatable(p, { __index = function(t, k)
	return function(frame)
		return t._main(k, frame.args[1])
	end
end })

return p

User:Pd4u/doc9

Module:Lua_banner

[edit]
-- This module implements the '"`UNIQ--templatestyles-0000002A-QINU`"'<table class="plainlinks messagebox mbox-small mbox-notice" role="presentation"><tr><td class="mbox-image">[[File:Lua-logo-nolabel.svg|30px|alt=Lua logo|link=wikipedia:Wikipedia:Lua]]</td><td class="mbox-text">This template should use [[wikipedia:Wikipedia:Lua|Lua]]</td></tr></table> template.

local yesno = require('Module:Yesno')
local mList = require('Module:List')
local mTableTools = require('Module:TableTools')
local mMessageBox = require('Module:Message box')
local TNT = require('Module:TNT')
local lang = mw.getCurrentFrame():preprocess('en')

local p = {}

local function format(msg)
	return TNT.formatInLanguage(lang, 'I18n/Lua banner', msg)
end

local function getConfig()
	return mw.loadData('Module:Lua banner/config')
end

function p.main(frame)
	local origArgs = frame:getParent().args
	local args = {}
	for k, v in pairs(origArgs) do
		v = v:match('^%s*(.-)%s*$')
		if v ~= '' then
			args[k] = v
		end
	end
	return p._main(args)
end

function p._main(args, cfg)
	local modules = mTableTools.compressSparseArray(args)
	local box = p.renderBox(modules, cfg)
	local trackingCategories = p.renderTrackingCategories(args, modules, nil, cfg)
	return box .. trackingCategories
end

function p.renderBox(modules, cfg)
	local boxArgs = {}
	if #modules < 1 then
		cfg = cfg or getConfig()
		if cfg['allow_wishes'] then
			boxArgs.text = format('wishtext')
		else
			boxArgs.text = string.format('<strong class="error">%s</strong>', format('error_emptylist'))
		end
	else
		local moduleLinks = {}
		for i, module in ipairs(modules) do
			moduleLinks[i] = string.format('[[:%s]]', module)
		end
		local moduleList = mList.makeList('bulleted', moduleLinks)
		boxArgs.text = format('header') .. '\n' .. moduleList
	end
	boxArgs.type = 'notice'
	boxArgs.small = true
	boxArgs.image = string.format(
		'[[File:Lua-logo-nolabel.svg|30px|alt=%s|link=%s]]',
		format('logo_alt'),
		format('logo_link')
	)
	return mMessageBox.main('mbox', boxArgs)
end

function p.renderTrackingCategories(args, modules, titleObj, cfg)
	if yesno(args.nocat) then
		return ''
	end
	
	cfg = cfg or getConfig()
	
	local cats = {}
	
	-- Error category
	if #modules < 1 and not cfg['allow_wishes'] and cfg['error_category'] then
		cats[#cats + 1] = cfg['error_category']
	end
	
	-- Lua templates category
	titleObj = titleObj or mw.title.getCurrentTitle()
	if titleObj.namespace == 10 
		and not cfg['subpage_blacklist'][titleObj.subpageText]
	then
		local category = args.category
		if not category then
			local pagename = modules[1] and mw.title.new(modules[1])
			category = pagename and cfg['module_categories'][pagename.text]
			if not category then
				if cfg['allow_wishes'] and #modules < 1 then
					category = cfg['wish_category']
				else
					category = cfg['default_category']
				end
			end
		end
		if category then
			cats[#cats + 1] = category
		end
	end
	
	for i, cat in ipairs(cats) do
		cats[i] = string.format('[[Category:%s]]', cat)
	end
	return table.concat(cats)
end

return p


Module:Arguments

[edit]
-- This module provides easy processing of arguments passed to Scribunto from
-- #invoke. It is intended for use by other Lua modules, and should not be
-- called from #invoke directly.

local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType

local arguments = {}

-- Generate four different tidyVal functions, so that we don't have to check the
-- options every time we call it.

local function tidyValDefault(key, val)
	if type(val) == 'string' then
		val = val:match('^%s*(.-)%s*$')
		if val == '' then
			return nil
		else
			return val
		end
	else
		return val
	end
end

local function tidyValTrimOnly(key, val)
	if type(val) == 'string' then
		return val:match('^%s*(.-)%s*$')
	else
		return val
	end
end

local function tidyValRemoveBlanksOnly(key, val)
	if type(val) == 'string' then
		if val:find('%S') then
			return val
		else
			return nil
		end
	else
		return val
	end
end

local function tidyValNoChange(key, val)
	return val
end

local function matchesTitle(given, title)
	local tp = type( given )
	return (tp == 'string' or tp == 'number') and mw.title.new( given ).prefixedText == title
end

local translate_mt = { __index = function(t, k) return k end }

function arguments.getArgs(frame, options)
	checkType('getArgs', 1, frame, 'table', true)
	checkType('getArgs', 2, options, 'table', true)
	frame = frame or {}
	options = options or {}

	--[[
	-- Set up argument translation.
	--]]
	options.translate = options.translate or {}
	if getmetatable(options.translate) == nil then
		setmetatable(options.translate, translate_mt)
	end
	if options.backtranslate == nil then
		options.backtranslate = {}
		for k,v in pairs(options.translate) do
			options.backtranslate[v] = k
		end
	end
	if options.backtranslate and getmetatable(options.backtranslate) == nil then
		setmetatable(options.backtranslate, {
			__index = function(t, k)
				if options.translate[k] ~= k then
					return nil
				else
					return k
				end
			end
		})
	end

	--[[
	-- Get the argument tables. If we were passed a valid frame object, get the
	-- frame arguments (fargs) and the parent frame arguments (pargs), depending
	-- on the options set and on the parent frame's availability. If we weren't
	-- passed a valid frame object, we are being called from another Lua module
	-- or from the debug console, so assume that we were passed a table of args
	-- directly, and assign it to a new variable (luaArgs).
	--]]
	local fargs, pargs, luaArgs
	if type(frame.args) == 'table' and type(frame.getParent) == 'function' then
		if options.wrappers then
			--[[
			-- The wrappers option makes Module:Arguments look up arguments in
			-- either the frame argument table or the parent argument table, but
			-- not both. This means that users can use either the #invoke syntax
			-- or a wrapper template without the loss of performance associated
			-- with looking arguments up in both the frame and the parent frame.
			-- Module:Arguments will look up arguments in the parent frame
			-- if it finds the parent frame's title in options.wrapper;
			-- otherwise it will look up arguments in the frame object passed
			-- to getArgs.
			--]]
			local parent = frame:getParent()
			if not parent then
				fargs = frame.args
			else
				local title = parent:getTitle():gsub('/sandbox$', '')
				local found = false
				if matchesTitle(options.wrappers, title) then
					found = true
				elseif type(options.wrappers) == 'table' then
					for _,v in pairs(options.wrappers) do
						if matchesTitle(v, title) then
							found = true
							break
						end
					end
				end

				-- We test for false specifically here so that nil (the default) acts like true.
				if found or options.frameOnly == false then
					pargs = parent.args
				end
				if not found or options.parentOnly == false then
					fargs = frame.args
				end
			end
		else
			-- options.wrapper isn't set, so check the other options.
			if not options.parentOnly then
				fargs = frame.args
			end
			if not options.frameOnly then
				local parent = frame:getParent()
				pargs = parent and parent.args or nil
			end
		end
		if options.parentFirst then
			fargs, pargs = pargs, fargs
		end
	else
		luaArgs = frame
	end

	-- Set the order of precedence of the argument tables. If the variables are
	-- nil, nothing will be added to the table, which is how we avoid clashes
	-- between the frame/parent args and the Lua args.
	local argTables = {fargs}
	argTables[#argTables + 1] = pargs
	argTables[#argTables + 1] = luaArgs

	--[[
	-- Generate the tidyVal function. If it has been specified by the user, we
	-- use that; if not, we choose one of four functions depending on the
	-- options chosen. This is so that we don't have to call the options table
	-- every time the function is called.
	--]]
	local tidyVal = options.valueFunc
	if tidyVal then
		if type(tidyVal) ~= 'function' then
			error(
				"bad value assigned to option 'valueFunc'"
					.. '(function expected, got '
					.. type(tidyVal)
					.. ')',
				2
			)
		end
	elseif options.trim ~= false then
		if options.removeBlanks ~= false then
			tidyVal = tidyValDefault
		else
			tidyVal = tidyValTrimOnly
		end
	else
		if options.removeBlanks ~= false then
			tidyVal = tidyValRemoveBlanksOnly
		else
			tidyVal = tidyValNoChange
		end
	end

	--[[
	-- Set up the args, metaArgs and nilArgs tables. args will be the one
	-- accessed from functions, and metaArgs will hold the actual arguments. Nil
	-- arguments are memoized in nilArgs, and the metatable connects all of them
	-- together.
	--]]
	local args, metaArgs, nilArgs, metatable = {}, {}, {}, {}
	setmetatable(args, metatable)

	local function mergeArgs(tables)
		--[[
		-- Accepts multiple tables as input and merges their keys and values
		-- into one table. If a value is already present it is not overwritten;
		-- tables listed earlier have precedence. We are also memoizing nil
		-- values, which can be overwritten if they are 's' (soft).
		--]]
		for _, t in ipairs(tables) do
			for key, val in pairs(t) do
				if metaArgs[key] == nil and nilArgs[key] ~= 'h' then
					local tidiedVal = tidyVal(key, val)
					if tidiedVal == nil then
						nilArgs[key] = 's'
					else
						metaArgs[key] = tidiedVal
					end
				end
			end
		end
	end

	--[[
	-- Define metatable behaviour. Arguments are memoized in the metaArgs table,
	-- and are only fetched from the argument tables once. Fetching arguments
	-- from the argument tables is the most resource-intensive step in this
	-- module, so we try and avoid it where possible. For this reason, nil
	-- arguments are also memoized, in the nilArgs table. Also, we keep a record
	-- in the metatable of when pairs and ipairs have been called, so we do not
	-- run pairs and ipairs on the argument tables more than once. We also do
	-- not run ipairs on fargs and pargs if pairs has already been run, as all
	-- the arguments will already have been copied over.
	--]]

	metatable.__index = function (t, key)
		--[[
		-- Fetches an argument when the args table is indexed. First we check
		-- to see if the value is memoized, and if not we try and fetch it from
		-- the argument tables. When we check memoization, we need to check
		-- metaArgs before nilArgs, as both can be non-nil at the same time.
		-- If the argument is not present in metaArgs, we also check whether
		-- pairs has been run yet. If pairs has already been run, we return nil.
		-- This is because all the arguments will have already been copied into
		-- metaArgs by the mergeArgs function, meaning that any other arguments
		-- must be nil.
		--]]
		if type(key) == 'string' then
			key = options.translate[key]
		end
		local val = metaArgs[key]
		if val ~= nil then
			return val
		elseif metatable.donePairs or nilArgs[key] then
			return nil
		end
		for _, argTable in ipairs(argTables) do
			local argTableVal = tidyVal(key, argTable[key])
			if argTableVal ~= nil then
				metaArgs[key] = argTableVal
				return argTableVal
			end
		end
		nilArgs[key] = 'h'
		return nil
	end

	metatable.__newindex = function (t, key, val)
		-- This function is called when a module tries to add a new value to the
		-- args table, or tries to change an existing value.
		if type(key) == 'string' then
			key = options.translate[key]
		end
		if options.readOnly then
			error(
				'could not write to argument table key "'
					.. tostring(key)
					.. '"; the table is read-only',
				2
			)
		elseif options.noOverwrite and args[key] ~= nil then
			error(
				'could not write to argument table key "'
					.. tostring(key)
					.. '"; overwriting existing arguments is not permitted',
				2
			)
		elseif val == nil then
			--[[
			-- If the argument is to be overwritten with nil, we need to erase
			-- the value in metaArgs, so that __index, __pairs and __ipairs do
			-- not use a previous existing value, if present; and we also need
			-- to memoize the nil in nilArgs, so that the value isn't looked
			-- up in the argument tables if it is accessed again.
			--]]
			metaArgs[key] = nil
			nilArgs[key] = 'h'
		else
			metaArgs[key] = val
		end
	end

	local function translatenext(invariant)
		local k, v = next(invariant.t, invariant.k)
		invariant.k = k
		if k == nil then
			return nil
		elseif type(k) ~= 'string' or not options.backtranslate then
			return k, v
		else
			local backtranslate = options.backtranslate[k]
			if backtranslate == nil then
				-- Skip this one. This is a tail call, so this won't cause stack overflow
				return translatenext(invariant)
			else
				return backtranslate, v
			end
		end
	end

	metatable.__pairs = function ()
		-- Called when pairs is run on the args table.
		if not metatable.donePairs then
			mergeArgs(argTables)
			metatable.donePairs = true
		end
		return translatenext, { t = metaArgs }
	end

	local function inext(t, i)
		-- This uses our __index metamethod
		local v = t[i + 1]
		if v ~= nil then
			return i + 1, v
		end
	end

	metatable.__ipairs = function (t)
		-- Called when ipairs is run on the args table.
		return inext, t, 0
	end

	return args
end

return arguments

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