Module:Documentation

-- This module implements.

-- Get required modules. local getArgs = require('Module:Arguments').getArgs

-- 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

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

p.message = message

local function makeWikilink(page, display) if display then return mw.ustring.format('%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 -- 'documentation-toolbar' return '('		.. table.concat(ret, ' &#124; ') .. ') ' 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

-- Entry points

function p.nonexistent(frame) if mw.title.getCurrentTitle.subpageText == 'testcases' then return frame:expandTemplate{title = 'module test cases notice'} else return p.main(frame) end end

p.main = makeInvokeFunc('_main')

function p._main(args) --	-- This function defines logic flow for the module.	-- @args - table of arguments passed by the user	-- local env = p.getEnvironment(args) local root = mw.html.create root :tag('div') -- 'documentation-container' :addClass(message('container')) :attr('role', 'complementary') :attr('aria-labelledby', args.heading ~= '' and 'documentation-heading' or nil) :attr('aria-label', args.heading == '' and 'Documentation' or nil) :newline :tag('div') -- 'documentation' :addClass(message('main-div-classes')) :newline :wikitext(p._startBox(args, env)) :wikitext(p._content(args, env)) :tag('div') -- 'documentation-clear' :addClass(message('clear')) :done :newline :done :wikitext(p._endBox(args, env)) :done :wikitext(p.addTrackingCategories(env)) -- 'Module:Documentation/styles.css' return mw.getCurrentFrame:extensionTag (		'templatestyles', '', {src=cfg['templatestyles']	}) .. 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.	--	-- Data includes:	-- 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.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

-- 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 or args[1] 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'	-- '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 if docTitle.isRedirect then docTitle = docTitle.redirectTarget 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 == 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][purge] 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 local purgeLink = makeUrlLink(title:fullUrl{action = 'purge'}, data.purgeLinkDisplay) 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) 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] [%s]' ret = escapeBrackets(ret) ret = mw.ustring.format(ret, createLink, purgeLink) end return ret end

function p.makeStartBoxData(args, env, links) --	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 else -- 'documentation-heading' data.headingClass = message('main-div-heading-class') end -- Data for the [view][edit][history][purge] or [create] links. if links then -- 'mw-editsection-like plainlinks' data.linksClass = message('start-box-link-classes') 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 -- 'documentation-startbox' :addClass(message('start-box-class')) :newline :tag('span') :addClass(data.headingClass) :attr('id', 'documentation-heading') :cssText(data.headingStyleText) :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 -- 	--]=]	-- 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 link box. 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 '') .. ' '			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" end end local box = mw.html.create('div') -- 'documentation-metadata' box:attr('role', 'note') :addClass(message('end-box-class')) -- 'plainlinks' :addClass(message('end-box-plainlinks')) :wikitext(text) :done

return '\n' .. tostring(box) 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 documentation -- is 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 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) .. ' '	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}) .. ' '	end return ret end

function p.makeExperimentBlurb(args, env) -- 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'	-- 'mirror-link-preload' --> 'Template:Documentation/mirror'	-- 'sandbox-link-display' --> 'sandbox'	-- 'testcases-link-display' --> 'testcases'	-- 'testcases-edit-link-display'--> 'edit'	-- '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 mirrorPreload = message('mirror-link-preload') local mirrorUrl = sandboxTitle:fullUrl{action = 'edit', preload = mirrorPreload, summary = mirrorSummary} if subjectSpace == 828 then mirrorUrl = sandboxTitle:fullUrl{action = 'edit', preload = templateTitle.prefixedText, summary = mirrorSummary} end 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) -- for Modules, add testcases run link if exists if testcasesTitle.contentModel == "Scribunto" and testcasesTitle.talkPageTitle and testcasesTitle.talkPageTitle.exists then local testcasesRunLinkDisplay = message('testcases-run-link-display') local testcasesRunLink = makeWikilink(testcasesTitle.talkPageTitle.prefixedText, testcasesRunLinkDisplay) testcasesLinks = testcasesLink .. ' ' .. makeToolbar(testcasesEditLink, testcasesRunLink) else testcasesLinks = testcasesLink .. ' ' .. makeToolbar(testcasesEditLink) end 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

-- Tracking categories

function p.addTrackingCategories(env) --	-- Check if 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	--  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