Difference between revisions of "Module:Documentation"

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wiki_crypto>DavidL
(classe CSS pour séparation contenu et présentation)
 
wiki_crypto>Izno
(remove test deleted a decade ago)
Line 1: Line 1:
-- Ce module implémente le modèle {{Méta documentation de modèle}}.
-- This module implements {{documentation}}.
 
-- Get required modules.
local getArgs = require('Module:Arguments').getArgs
 
-- Get the config table.
local cfg = mw.loadData('Module:Documentation/config')


local p = {}
local p = {}


local function existePage(page)
-- Often-used functions.
return page and page.exists
local ugsub = mw.ustring.gsub
end
 
----------------------------------------------------------------------------
-- Helper functions
--
-- These are defined as local functions, but are made available in the p
-- table for testing purposes.
----------------------------------------------------------------------------


local function nomSouspage(page, souspage)
local function message(cfgKey, valArray, expectType)
--On n'est pas dans une sous-page
--[[
if not page.isSubpage then
-- Gets a message from the cfg table and formats it if appropriate.
return page.subjectNsText .. ':' .. page.text .. '/' .. souspage
-- 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
end


--On est dans une sous-page
local function getMessageVal(match)
local sousPage = page.subpageText
match = tonumber(match)
if sousPage == 'Documentation'
return valArray[match] or error('message: no value found for key $' .. match .. ' in message cfg.' .. cfgKey, 4)
or sousPage == 'Bac à sable'
or sousPage == 'Test' then
return page.subjectNsText .. ':' .. page.baseText .. '/' .. souspage
else
return page.subjectNsText .. ':' .. page.text .. '/' .. souspage
end
end
return ugsub(msg, '$([1-9][0-9]*)', getMessageVal)
end
end


local function lienUrl(nomPage, texteLien, action, pagePreload)
p.message = message
local arguments = {}


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


if pagePreload then
p.makeWikilink = makeWikilink
arguments['preload'] = 'Modèle:Documentation/' .. pagePreload
end


if arguments['action'] or arguments['preload'] then
local function makeCategoryLink(cat, sort)
return mw.ustring.format('[%s %s]', nomPage:fullUrl(arguments), texteLien)
local catns = mw.site.namespaces[14].name
else
return makeWikilink(catns .. ':' .. cat, sort)
return mw.ustring.format('[[%s|%s]]', nomPage.fullText, texteLien)
end
end
end


local function entete(args, page, doc, existeDoc)
p.makeCategoryLink = makeCategoryLink
local res = mw.html.create('div')


-- Titre
local function makeUrlLink(url, display)
res
return mw.ustring.format('[%s %s]', url, display)
:css('margin-bottom', '1ex')
end
:css('border-bottom', '1px solid #aaa')
:css('padding-bottom', '3px')
:wikitext('[[Fichier:Test Template Info-Icon.svg|50px|alt=|link=]]')
:tag('span')
:css('font-weight', 'bold')
:css('font-size', '125%')
:css('vertical-align', 'middle')
:wikitext(' ')
:wikitext(args.titre or 'Documentation')
:done()


-- Liens
p.makeUrlLink = makeUrlLink
local editionLien = res:tag('span')
:addClass('mw-editsection-like plainlinks')
:css('vertical-align', 'middle')


if args['aucun contenu additionnel'] == nil then
local function makeToolbar(...)
if not args.contenu then
local ret = {}
if existeDoc then
local lim = select('#', ...)
editionLien
if lim < 1 then
:wikitext('&#91;')
return nil
:wikitext(lienUrl(doc, 'voir'))
end
:wikitext('&#93; ')
for i = 1, lim do
ret[#ret + 1] = select(i, ...)
end
-- 'documentation-toolbar'
return '<span class="' .. message('toolbar-class') .. '">('
.. table.concat(ret, ' &#124; ') .. ')</span>'
end
 
p.makeToolbar = makeToolbar


:wikitext('&#91;')
----------------------------------------------------------------------------
:wikitext(lienUrl(doc, 'modifier', 'edit'))
-- Argument processing
:wikitext('&#93; ')
----------------------------------------------------------------------------


:wikitext('&#91;')
local function makeInvokeFunc(funcName)
:wikitext(lienUrl(doc, 'historique', 'history'))
return function (frame)
:wikitext('&#93; ')
local args = getArgs(frame, {
else
valueFunc = function (key, value)
local pagePreload = 'Preload'
if type(value) == 'string' then
if page.namespace == 828 then
value = value:match('^%s*(.-)%s*$') -- Remove whitespace.
pagePreload = 'PreloadModule'
if key == 'heading' or value ~= '' then
return value
else
return nil
end
else
return value
end
end
end
})
return p[funcName](args)
end
end


editionLien
----------------------------------------------------------------------------
:wikitext('&#91;')
-- Entry points
:wikitext(lienUrl(doc, 'créer', 'edit', pagePreload))
----------------------------------------------------------------------------
:wikitext('&#93; ')
 
end
function p.nonexistent(frame)
end
if mw.title.getCurrentTitle().subpageText == 'testcases' then
return frame:expandTemplate{title = 'module test cases notice'}
else
return p.main(frame)
end
end
end


editionLien
p.main = makeInvokeFunc('_main')
:wikitext('&#91;')
:wikitext(lienUrl(page, 'purger', 'purge'))
:wikitext('&#93;')


return res
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
:wikitext(p._getModuleWikitext(args, env))
:wikitext(p.protectionTemplate(env))
:wikitext(p.sandboxNotice(args, env))
:tag('div')
-- 'documentation-container'
:addClass(message('container'))
: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
end


local function protection(page, doc, existeDoc, message)
----------------------------------------------------------------------------
-- Insertion automatique du modèle de protection.
-- Environment settings
local niveauProtection = page.protectionLevels.edit
----------------------------------------------------------------------------


if niveauProtection and niveauProtection[1] then
function p.getEnvironment(args)
local tableProtection = {
--[[
autoconfirmed = {'semiProtection', '{{%s*[Ss]emi%-protection%s*[|}]', '{{%s*[Ss]emi%-protection +longue%s*[|}]'},
-- Returns a table with information about the environment, including title
editextendedsemiprotected = {'semiProtectionEtendue', '{{%s*[Ss]emi%-protection +étendue%s*[|}]'},
-- objects and other namespace- or path-related data.
sysop = {'protection', '{{%s*[Pp]rotection%s*[|}]'},
-- @args - table of arguments passed by the user
}
--
local protection = tableProtection[niveauProtection[1]]
-- Title objects include:
if not protection then
-- env.title - the page we are making documentation for (usually the current title)
return ''
-- 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.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
end
})


local alreadyShown = false
function envFuncs.title()
if existeDoc then
-- The title object for the current page, or a test page passed with args.page.
-- Vérification qu'il n'y a pas déjà un modèle de
local title
-- protection dans la documentation du modèle.
local titleArg = args.page
local contenuDoc = doc:getContent()
if titleArg then
if contenuDoc:match(protection[2]) or (protection[3] and contenuDoc:match(protection[3])) then
title = mw.title.new(titleArg)
alreadyShown = true
else
end
title = mw.title.getCurrentTitle()
end
end
return title
end


if not alreadyShown then
function envFuncs.templateTitle()
if message == '' then
--[[
message = nil
-- The template (or module, etc.) title object.
end
-- Messages:
return require('Module:Protection').main({message}, protection[1], page)
-- '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
end
end
end


-- pour les bacs à sable, on retire les balises de catégories
function envFuncs.docTitle()
-- habituellement situées en "includeonly" à la fin de la documentation
--[[
local function retireBalisesCategories(contenuDoc)
-- Title object of the /doc subpage.
local count
-- Messages:
repeat
-- 'doc-subpage' --> 'doc'
contenuDoc, count = mw.ustring.gsub(contenuDoc, '%[%[Catégorie:[^%]]+%]%][\t\r\n\f ]*$', '')
--]]
until count == 0
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


contenuDoc, count = mw.ustring.gsub(contenuDoc, '[\t\r\n\f ]*$', '')
function envFuncs.protectionLevels()
-- The protection levels table of the title object.
return env.title.protectionLevels
end


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


local function contenu(args, doc, existeDoc)
function envFuncs.docSpace()
local page = mw.title.getCurrentTitle()
-- The documentation namespace number. For most namespaces this is the
local res = mw.html.create():newline()
-- 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


-- Contenu auto haut
function envFuncs.docpageBase()
if args['contenu auto haut'] then
-- The base page of the /doc, /sandbox, and /testcases subpages.
res:wikitext(args['contenu auto haut'])
-- For some namespaces this is the talk page, rather than the template page.
  :newline()
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
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


-- Contenu ou sous-page de doc
----------------------------------------------------------------------------
if args['aucun contenu additionnel'] == nil then
-- Auxiliary templates
if args.contenu then
----------------------------------------------------------------------------
res:newline()
  :wikitext(args.contenu)
  :newline()


elseif existeDoc then
p.getModuleWikitext = makeInvokeFunc('_getModuleWikitext')
local contenuDoc = mw.getCurrentFrame():expandTemplate{title = doc.prefixedText}
if page.subpageText == 'Bac à sable' or page.subpageText == 'Test' then
contenuDoc = retireBalisesCategories(contenuDoc)
end
res:newline()
  :wikitext(contenuDoc)
  :newline()


elseif page.subpageText ~= 'Bac à sable' and page.subpageText ~= 'Test' and args['contenu facultatif'] == nil then
function p._getModuleWikitext(args, env)
local texteBandeau = '<b>Ce %s ne possède aucune [[Aide:Documentation de modèle|documentation]] '
local currentTitle = mw.title.getCurrentTitle()
..'explicative en sous-page</b>, pas même une description succincte.<br> '
if currentTitle.contentModel ~= 'Scribunto' then return end
..'Vous pouvez %s afin de documenter ce %s adéquatement.'
pcall(require, currentTitle.prefixedText) -- if it fails, we don't care
if page.namespace == 828 then -- Module
local moduleWikitext = package.loaded["Module:Module wikitext"]
texteBandeau = texteBandeau:format(
if moduleWikitext then
'module',
return moduleWikitext.main()
lienUrl(doc, 'créer cette sous-page', 'edit', 'PreloadModule'),
'module'
)
else -- Modèle
texteBandeau = texteBandeau:format(
'modèle',
lienUrl(doc, 'créer cette sous-page', 'edit', 'Preload'),
'modèle'
)
end
if page.namespace == 10 then -- Modèle
texteBandeau = texteBandeau .. '[[Catégorie:Modèle sans documentation]]'
elseif page.namespace == 828 then -- Module
if page.text:sub(1, 12) == 'Utilisateur:' then
-- Pas de catégorisation pour le pseudo-namespace "Module:Utilisateur:Toto/Nom du module"
elseif existeDoc == false then
texteBandeau = texteBandeau .. '[[Catégorie:Module sans documentation]]'
end
end
local param = {
['icône'] = 'OOjs_UI_icon_book-ltr.svg',
alt = 'MIT',
style = 'width:80%;',
texte = texteBandeau,
}
res:wikitext(require('Module:Bandeau')._bandeau(param))
end
end
end
end


-- Contenu auto bas
function p.sandboxNotice(args, env)
if args['contenu auto bas'] then
--[=[
res:newline()
-- Generates a sandbox notice for display above sandbox pages.
  :wikitext(args['contenu auto bas'])
-- @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
end
-- Build the table of arguments to pass to {{ombox}}. 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 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 compareUrl then
local compareDisplay = message('sandbox-notice-compare-link-display')
local compareLink = makeUrlLink(compareUrl, compareDisplay)
text = text .. message('sandbox-notice-diff-blurb', {pagetype, templateLink, compareLink})
else
text = text .. message('sandbox-notice-blurb', {pagetype, templateLink})
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.contentModel == "Scribunto" 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.
omargs.text = text .. makeCategoryLink(message('sandbox-category'))


res
-- 'documentation-clear'
:tag('div')
return '<div class="' .. message('clear') .. '"></div>'
:css('clear', 'both')
.. require('Module:Message box').main('ombox', omargs)
end


return res
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 = 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.
return require('Module:Protection banner')._main{
message('protection-reason-edit'), 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.
return require('Module:Protection banner')._main{
action = 'move', small = true
}
else
return nil
end
end
end


local function notice(args, page, doc, existeDoc)
----------------------------------------------------------------------------
local res = mw.html.create('div')
-- Start box
:css('border-top', '1px solid #aaa')
----------------------------------------------------------------------------
:css('margin', '1.5em 0 0')


local contenuParagraphe = res
p.startBox = makeInvokeFunc('_startBox')
:tag('p')
:addClass('plainlinks')
:css('margin-bottom', '0')
:css('padding-left', '1em')
:css('font-style', 'italic')


-- Phrase "la documentation est générée par ..."
function p._startBox(args, env)
if args['nom modèle'] then
--[[
local lienAide = '[[Aide:Modèle|modèle]]'
-- This function generates the start box.
if page.namespace == 828 then
-- @args - a table of arguments passed by the user
lienAide = '[[Aide:Module|module]]'
-- @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
 
end
contenuParagraphe
-- Generate the start box html.
:wikitext('La [[Aide:Documentation de modèle|documentation]] de ce ')
local data = p.makeStartBoxData(args, env, links)
:wikitext(lienAide)
if data then
:wikitext(' est générée par le modèle ')
return p.renderStartBox(data)
:wikitext(mw.getCurrentFrame():expandTemplate{title = 'm', args = {args['nom modèle']} })
:wikitext('.<br>')
else
else
contenuParagraphe
-- User specified no heading.
:tag('span')
return nil
:addClass('error')
:wikitext('Erreur : le paramètre <code>nom modèle</code> n\'est pas renseigné.<br>')
end
end
end


-- Phrase indiquant la provenance du contenu (dans le corps ou en sous-page)
function p.makeStartBoxLinksData(args, env)
if args['aucun contenu additionnel'] == nil then
--[[
if args.contenu then
-- Does initial processing of data to make the [view] [edit] [history] [purge] links.
contenuParagraphe
-- @args - a table of arguments passed by the user
:wikitext('Elle est directement [[Aide:Inclusion|incluse]] dans l\'appel de ce dernier. ')
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
:wikitext('Si cette page est protégée, veuillez ')
--
:wikitext('transférer le contenu de la documentation vers sa ')
-- Messages:
:wikitext(lienUrl(doc, 'sous-page dédiée', 'edit', 'Preload'))
-- 'view-link-display' --> 'view'
:wikitext('.<br>')
-- 'edit-link-display' --> 'edit'
elseif existeDoc then
-- 'history-link-display' --> 'history'
contenuParagraphe
-- 'purge-link-display' --> 'purge'
:wikitext('Elle est [[Aide:Inclusion|incluse]] depuis ')
-- '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


if args['page doc'] then
local data = {}
contenuParagraphe
data.title = title
:wikitext('la page [[')
data.docTitle = docTitle
:wikitext(tostring(doc))
-- View, display, edit, and purge links if /doc exists.
:wikitext(']]. ')
data.viewLinkDisplay = message('view-link-display')
else
data.editLinkDisplay = message('edit-link-display')
contenuParagraphe
data.historyLinkDisplay = message('history-link-display')
:wikitext('sa [[')
data.purgeLinkDisplay = message('purge-link-display')
:wikitext(tostring(doc))
-- Create link if /doc doesn't exist.
:wikitext('|sous-page de documentation]]. ')
local preload = args.preload
end
if not preload then
 
if subjectSpace == 828 then -- Module namespace
contenuParagraphe
preload = message('module-preload')
:wikitext('Veuillez placer les catégories sur cette page-là.<br>')
else
preload = message('docpage-preload')
end
end
end
end
data.preload = preload
data.createLinkDisplay = message('create-link-display')
return data
end


-- Phrase indiquant les liens vers le bac à sable et la page de test
function p.renderStartBoxLinks(data)
contenuParagraphe
--[[
:wikitext('Les éditeurs peuvent travailler dans le ')
-- 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 titrePageBacasable = nomSouspage(page, 'Bac à sable')
local ret
local pageBacasable = mw.title.new(titrePageBacasable)
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


if existePage(pageBacasable) then
function p.makeStartBoxData(args, env, links)
contenuParagraphe
--[=[
:wikitext('[[' .. titrePageBacasable .. '|bac à sable]]&nbsp;')
-- Does initial processing of data to pass to the start-box render function, p.renderStartBox.
:tag('span')
-- @args - a table of arguments passed by the user
:css('font-size', '89%')
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
:css('font-style', 'normal')
-- @links - a string containing the [view][edit][history][purge] links - could be nil if there's an error.
:wikitext('(')
--
:wikitext(lienUrl(pageBacasable, 'modifier', 'edit'))
-- Messages:
:wikitext(')')
-- 'documentation-icon-wikitext' --> '[[File:Test Template Info-Icon - Version (2).svg|50px|link=|alt=]]'
-- 'template-namespace-heading' --> 'Template documentation'
-- 'module-namespace-heading' --> 'Module documentation'
-- 'file-namespace-heading' --> 'Summary'
-- 'other-namespaces-heading' --> 'Documentation'
-- '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
else
local pagePreload = 'Preload2'
data.heading = message('other-namespaces-heading')
if page.namespace == 828 then
end
pagePreload = nil
end
-- Heading CSS
contenuParagraphe
local headingStyle = args['heading-style']
:wikitext('bac à sable&nbsp;')
if headingStyle then
:tag('span')
data.headingStyleText = headingStyle
:css('font-size', '89%')
else
:css('font-style', 'normal')
-- 'documentation-heading'
:wikitext('(')
data.headingClass = message('main-div-heading-class')
:wikitext(lienUrl(pageBacasable, 'créer', 'edit', pagePreload))
end
:wikitext(')')
-- 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)
: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
end
return tostring(sbox)
end


if page.namespace ~= 828 then
----------------------------------------------------------------------------
contenuParagraphe:wikitext(' et la page de ')
-- Documentation content
----------------------------------------------------------------------------


local titrePageTest = nomSouspage(page, 'Test')
p.content = makeInvokeFunc('_content')
local pageTest = mw.title.new(titrePageTest)


if existePage(pageTest) then
function p._content(args, env)
contenuParagraphe
-- Displays the documentation contents
:wikitext('[[' .. titrePageTest .. '|test]]&nbsp;')
-- @args - a table of arguments passed by the user
:tag('span')
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
:css('font-size', '89%')
env = env or p.getEnvironment(args)
:css('font-style', 'normal')
local docTitle = env.docTitle
:wikitext('(')
local content = args.content
:wikitext(lienUrl(pageTest, 'modifier', 'edit'))
if not content and docTitle and docTitle.exists then
:wikitext(')')
content = args._content or mw.getCurrentFrame():expandTemplate{title = docTitle.prefixedText}
else
contenuParagraphe
:wikitext('test&nbsp;')
:tag('span')
:css('font-size', '89%')
:css('font-style', 'normal')
:wikitext('(')
:wikitext(lienUrl(pageTest, 'créer', 'edit', 'Preload3'))
:wikitext(')')
end
end
end
contenuParagraphe:wikitext('.')
-- 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')


return res
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


function p._documentation(args)
----------------------------------------------------------------------------
local page = mw.title.getCurrentTitle()
-- End box
local titrePageDoc = args['page doc'] or nomSouspage(page, 'Documentation')
----------------------------------------------------------------------------
local doc = mw.title.new(titrePageDoc)
 
local existeDoc = existePage(doc)
p.endBox = makeInvokeFunc('_endBox')
local res = mw.html.create()


--Bandeau pour les sous-pages /Bac à sable
function p._endBox(args, env)
if page.subpageText == 'Bac à sable' then
--[=[
res
-- This function generates the end box (also known as the link box).
:tag('div')
-- @args - a table of arguments passed by the user
:css('clear', 'both')
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
:done()
--  
:wikitext(mw.getCurrentFrame():expandTemplate{title = 'Sous-page de bac à sable'})
--]=]
-- 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
end


--Génération de la documentation
-- Assemble the link box.
local couleur = '#ecfcf4'
local text = ''
if page.namespace == 828 then
if linkBox then
couleur = '#ecf0fc'
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 '') .. '<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"
end
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()


res
return '\n' .. tostring(box)
:tag('div')
end
:addClass('documentation')
 
:css('clear', 'both')
function p.makeDocPageBlurb(args, env)
:css('margin', '1em 0 0 0')
--[=[
:css('border', '1px solid #aaa')
-- Makes the blurb "This documentation is transcluded from [[Template:Foo]] (edit, history)".
:css('background', couleur)
-- @args - a table of arguments passed by the user
:css('padding', '1em 1em 0.8em')
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
:node(entete(args, page, doc, existeDoc))
--
:wikitext(protection(page, doc, existeDoc, args['message protection']))
-- Messages:
:node(contenu(args, doc, existeDoc))
-- 'edit-link-display' --> 'edit'
:node(notice(args, page, doc, existeDoc))
-- 'history-link-display' --> 'history'
-- 'transcluded-from-blurb' -->
-- 'The above [[Wikipedia:Template documentation|documentation]]
-- is [[Help: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


-- Catégorisation par défaut pour les modules sans documentation
function p.makeExperimentBlurb(args, env)
if page.namespace == 828 and page.subpageText ~= 'Bac à sable' and page.subpageText ~= 'Test' then
--[[
if existeDoc == false then
-- Renders the text "Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages."
res:wikitext("[[Catégorie:Module en langage Lua]]")
-- @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
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
end
local messageName
if subjectSpace == 828 then
messageName = 'experiment-blurb-module'
else
messageName = 'experiment-blurb-template'
end
return message(messageName, {sandboxLinks, testcasesLinks})
end


return tostring(res)
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
end


function p.documentation(frame)
function p.makeSubpagesBlurb(args, env)
local args = {}
--[[
local argsParent = frame:getParent().args
-- 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
----------------------------------------------------------------------------


--Paramètres vides interprétés par Lua
function p.addTrackingCategories(env)
for cle, val in pairs(argsParent) do
--[[
val = mw.text.trim(val)
-- Check if {{documentation}} is transcluded on a /doc or /testcases page.
if val ~= '' then
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
args[cle] = val
end
-- 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
end
 
return ret
return p._documentation(args)
end
end


return p
return p

Revision as of 19:35, 21 December 2021

Lua error in Module:Lua_banner at line 113: attempt to index field 'edit' (a nil value). Lua error in Module:TNT at line 159: Missing JsonConfig extension; Cannot load https://commons.wikimedia.org/wiki/Data:I18n/Uses TemplateStyles.tab. This module displays a blue box containing documentation for templates, Lua modules, or other pages. The {{documentation}} template invokes it.

Normal usage

For most uses, you should use the {{documentation}} template; please see that template's page for its usage instructions and parameters.

Use in other modules

To use this module from another Lua module, first load it with require:

<syntaxhighlight lang="lua"> local documentation = require('Module:Documentation').main </syntaxhighlight>

Then you can simply call it using a table of arguments. <syntaxhighlight lang="lua"> documentation{content = 'Some documentation', ['link box'] = 'My custom link box'} </syntaxhighlight>

Please refer to the template documentation for usage instructions and a list of parameters.

Porting to other wikis

The module has a configuration file at Module:Documentation/config which is intended to allow easy translation and porting to other wikis. Please see the code comments in the config page for instructions. If you have any questions, or you need a feature which is not currently implemented, please leave a message at Template talk:Documentation to get the attention of a developer.

The messages that need to be customized to display a documentation template/module at the top of module pages are MediaWiki:Scribunto-doc-page-show and MediaWiki:Scribunto-doc-page-does-not-exist.


-- This module implements {{documentation}}.

-- 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|%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 '<span class="' .. message('toolbar-class') .. '">('
		.. table.concat(ret, ' &#124; ') .. ')</span>'
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
		:wikitext(p._getModuleWikitext(args, env))
		:wikitext(p.protectionTemplate(env))
		:wikitext(p.sandboxNotice(args, env))
		:tag('div')
			-- 'documentation-container'
			:addClass(message('container'))
			: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.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.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
----------------------------------------------------------------------------

p.getModuleWikitext = makeInvokeFunc('_getModuleWikitext')

function p._getModuleWikitext(args, env)
	local currentTitle = mw.title.getCurrentTitle()
	if currentTitle.contentModel ~= 'Scribunto' then return end
	pcall(require, currentTitle.prefixedText) -- if it fails, we don't care
	local moduleWikitext =  package.loaded["Module:Module wikitext"]
	if moduleWikitext then
		return moduleWikitext.main()
	end
end

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 {{ombox}}. 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 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 compareUrl then
		local compareDisplay = message('sandbox-notice-compare-link-display')
		local compareLink = makeUrlLink(compareUrl, compareDisplay)
		text = text .. message('sandbox-notice-diff-blurb', {pagetype, templateLink, compareLink})
	else
		text = text .. message('sandbox-notice-blurb', {pagetype, templateLink})
	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.contentModel == "Scribunto" 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.
	omargs.text = text .. makeCategoryLink(message('sandbox-category'))

	-- 'documentation-clear'
	return '<div class="' .. message('clear') .. '"></div>'
		.. require('Module:Message box').main('ombox', omargs)
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 = 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.
		return require('Module:Protection banner')._main{
			message('protection-reason-edit'), 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.
		return require('Module:Protection banner')._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 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)
	--[=[
	-- 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=]]'
	-- 'template-namespace-heading' --> 'Template documentation'
	-- 'module-namespace-heading' --> 'Module documentation'
	-- 'file-namespace-heading' --> 'Summary'
	-- 'other-namespaces-heading' --> 'Documentation'
	-- '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
	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)
			: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 '') .. '<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"
		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 [[Wikipedia:Template documentation|documentation]] 
	-- is [[Help: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'
	-- '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 {{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