Difference between revisions of "Module:Documentation"

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(make a couple of the helper functions available for testing)
m (1 revision imported)
 
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Line 3: Line 3:
 
-- Get required modules.
 
-- Get required modules.
 
local getArgs = require('Module:Arguments').getArgs
 
local getArgs = require('Module:Arguments').getArgs
local htmlBuilder = require('Module:HtmlBuilder')
 
local messageBox = require('Module:Message box')
 
  
 
-- Get the config table.
 
-- Get the config table.
Line 12: Line 10:
  
 
-- Often-used functions.
 
-- Often-used functions.
local gsub = mw.ustring.gsub
+
local ugsub = mw.ustring.gsub
  
 
----------------------------------------------------------------------------
 
----------------------------------------------------------------------------
 
-- Helper functions
 
-- Helper functions
 +
--
 +
-- These are defined as local functions, but are made available in the p
 +
-- table for testing purposes.
 
----------------------------------------------------------------------------
 
----------------------------------------------------------------------------
  
local function message(cfgKey, expectType, valArray)
+
local function message(cfgKey, valArray, expectType)
 
--[[
 
--[[
 
-- Gets a message from the cfg table and formats it if appropriate.
 
-- 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
 
-- The function raises an error if the value from the cfg table is not
-- of the type expectType.
+
-- 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
 
-- 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.
 
-- message are substituted with values from the table keys [1], [2] etc.
-- For example, if the message cfg.fooMessage had the value 'Foo $2 bar $1.',
+
-- For example, if the message "foo-message" had the value 'Foo $2 bar $1.',
-- message('fooMessage', 'string', {'baz', 'qux'}) would return "Foo qux bar baz."
+
-- message('foo-message', {'baz', 'qux'}) would return "Foo qux bar baz."
 
--]]
 
--]]
 
local msg = cfg[cfgKey]
 
local msg = cfg[cfgKey]
if expectType and type(msg) ~= expectType then
+
expectType = expectType or 'string'
 +
if type(msg) ~= expectType then
 
error('message: type error in message cfg.' .. cfgKey .. ' (' .. expectType .. ' expected, got ' .. type(msg) .. ')', 2)
 
error('message: type error in message cfg.' .. cfgKey .. ' (' .. expectType .. ' expected, got ' .. type(msg) .. ')', 2)
 
end
 
end
Line 41: Line 43:
 
end
 
end
  
local ret = gsub(msg, '$([1-9][0-9]*)', getMessageVal)
+
return ugsub(msg, '$([1-9][0-9]*)', getMessageVal)
return ret
 
 
end
 
end
  
p.message = message -- Make this function available for testing.
+
p.message = message
  
 
local function makeWikilink(page, display)
 
local function makeWikilink(page, display)
Line 54: Line 55:
 
end
 
end
 
end
 
end
 +
 +
p.makeWikilink = makeWikilink
  
 
local function makeCategoryLink(cat, sort)
 
local function makeCategoryLink(cat, sort)
 
local catns = mw.site.namespaces[14].name
 
local catns = mw.site.namespaces[14].name
return makeWikilink(catns .. '/' .. cat, sort)
+
return makeWikilink(catns .. ':' .. cat, sort)
 
end
 
end
 +
 +
p.makeCategoryLink = makeCategoryLink
  
 
local function makeUrlLink(url, display)
 
local function makeUrlLink(url, display)
 
return mw.ustring.format('[%s %s]', url, display)
 
return mw.ustring.format('[%s %s]', url, display)
 
end
 
end
 +
 +
p.makeUrlLink = makeUrlLink
  
 
local function makeToolbar(...)
 
local function makeToolbar(...)
Line 73: Line 80:
 
ret[#ret + 1] = select(i, ...)
 
ret[#ret + 1] = select(i, ...)
 
end
 
end
return '<small style="font-style: normal;">(' .. table.concat(ret, ' &#124; ') .. ')</small>'
+
-- 'documentation-toolbar'
 +
return '<span class="' .. message('toolbar-class') .. '">('
 +
.. table.concat(ret, ' &#124; ') .. ')</span>'
 
end
 
end
  
p.makeToolbar = makeToolbar -- Make this function available for testing.
+
p.makeToolbar = makeToolbar
 
 
local function err(msg)
 
return string.format(
 
'<strong class="error">[[Module:Documentation]] error: %s</strong>%s',
 
msg,
 
makeCategoryLink('Documentation template invocations with errors')
 
)
 
end
 
  
 
----------------------------------------------------------------------------
 
----------------------------------------------------------------------------
Line 92: Line 93:
 
local function makeInvokeFunc(funcName)
 
local function makeInvokeFunc(funcName)
 
return function (frame)
 
return function (frame)
local headingArg = message('headingArg', 'string')
 
 
local args = getArgs(frame, {
 
local args = getArgs(frame, {
 
valueFunc = function (key, value)
 
valueFunc = function (key, value)
 
if type(value) == 'string' then
 
if type(value) == 'string' then
 
value = value:match('^%s*(.-)%s*$') -- Remove whitespace.
 
value = value:match('^%s*(.-)%s*$') -- Remove whitespace.
if key == headingArg or value ~= '' then
+
if key == 'heading' or value ~= '' then
 
return value
 
return value
 
else
 
else
Line 112: Line 112:
  
 
----------------------------------------------------------------------------
 
----------------------------------------------------------------------------
-- Main function
+
-- 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')
 
p.main = makeInvokeFunc('_main')
  
 
function p._main(args)
 
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 env = p.getEnvironment(args)
local root = htmlBuilder.create()
+
local root = mw.html.create()
 
root
 
root
.wikitext(p.protectionTemplate(env))
+
:wikitext(p._getModuleWikitext(args, env))
.wikitext(p.sandboxNotice(args, env))
+
:wikitext(p.protectionTemplate(env))
-- This div tag is from {{documentation/start box}}, but moving it here
+
:wikitext(p.sandboxNotice(args, env))
-- so that we don't have to worry about unclosed tags.
+
:tag('div')
.tag('div')
+
-- 'documentation-container'
.attr('id', message('mainDivId', 'string'))
+
:addClass(message('container'))
.addClass(message('mainDivClasses', 'string'))
+
:newline()
.newline()
+
:tag('div')
.wikitext(p._startBox(args, env))
+
-- 'documentation'
.wikitext(p._content(args, env))
+
:addClass(message('main-div-classes'))
.tag('div')
+
:newline()
.css('clear', 'both') -- So right or left floating items don't stick out of the doc box.
+
:wikitext(p._startBox(args, env))
.newline()
+
:wikitext(p._content(args, env))
.done()
+
:tag('div')
.done()
+
-- 'documentation-clear'
.wikitext(p._endBox(args, env))
+
:addClass(message('clear'))
.newline()
+
:done()
.wikitext(p.addTrackingCategories(env))
+
:newline()
return tostring(root)
+
: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
  
Line 147: Line 166:
  
 
function p.getEnvironment(args)
 
function p.getEnvironment(args)
-- Returns a table with information about the environment, including the title to use, the subject namespace, etc.
+
--[[
-- This is called from p._main using pcall in case we get any errors from exceeding the expensive function count
+
-- Returns a table with information about the environment, including title
-- limit, or other perils unknown.
+
-- 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:
 
-- Data includes:
-- env.title - the title object of the page we are making documentation for (usually the current title)
+
-- env.protectionLevels - the protection levels table of the title object.
 
-- env.subjectSpace - the number of the title's subject namespace.
 
-- env.subjectSpace - the number of the title's subject namespace.
-- env.docspace - the name of the namespace the title puts its documentation in.
+
-- env.docSpace - the number of the namespace the title puts its documentation in.
-- env.templatePage - the name of the template page with no namespace or interwiki prefixes.
+
-- 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 = {}, {}
 
local env, envFuncs = {}, {}
  
-- Set up the metatable. If a nil value is called, we call that function in the envFuncs table and memoize it
+
-- Set up the metatable. If triggered we call the corresponding function in the envFuncs table. The value
-- in the env table so we don't have to call any of the functions more than once.
+
-- 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, {
 
setmetatable(env, {
 
__index = function (t, key)
 
__index = function (t, key)
 
local envFunc = envFuncs[key]
 
local envFunc = envFuncs[key]
 
if envFunc then
 
if envFunc then
local val = envFunc()
+
local success, val = pcall(envFunc)
env[key] = val
+
if success then
return val
+
env[key] = val -- Memoise the value.
else
+
return val
return nil
+
end
 
end
 
end
 +
return nil
 
end
 
end
 
})
 
})
  
-- Get the title.
 
 
function envFuncs.title()
 
function envFuncs.title()
 +
-- The title object for the current page, or a test page passed with args.page.
 
local title
 
local title
local titleArg = args[message('titleArg', 'string')]
+
local titleArg = args.page
 
if titleArg then
 
if titleArg then
 
title = mw.title.new(titleArg)
 
title = mw.title.new(titleArg)
if not title then
 
error(message('titleArgError', 'string', {titleArg}))
 
end
 
 
else
 
else
 
title = mw.title.getCurrentTitle()
 
title = mw.title.getCurrentTitle()
Line 188: Line 220:
 
end
 
end
  
-- Get the subject namespace number.
+
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()
 
function envFuncs.subjectSpace()
 +
-- The subject namespace number.
 
return mw.site.namespaces[env.title.namespace].subject.id
 
return mw.site.namespaces[env.title.namespace].subject.id
 
end
 
end
+
 
-- Get the name of the documentation namespace.
+
function envFuncs.docSpace()
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
 
local subjectSpace = env.subjectSpace
 
if subjectSpace == 0 or subjectSpace == 6 or subjectSpace == 8 or subjectSpace == 14 then
 
if subjectSpace == 0 or subjectSpace == 6 or subjectSpace == 8 or subjectSpace == 14 then
-- Pages in the Article, File, MediaWiki or Category namespaces must have their
+
return subjectSpace + 1
-- /doc, /sandbox and /testcases pages in talk space.
 
return mw.site.namespaces[subjectSpace].talk.name
 
 
else
 
else
return env.title.subjectNsText
+
return subjectSpace
 
end
 
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
 
end
 
 
-- Get the template page with no namespace or interwiki prefixes.
+
function envFuncs.compareUrl()
function envFuncs.templatePage()
+
-- Diff link between the sandbox and the main template using [[Special:ComparePages]].
local title = env.title
+
local templateTitle = env.templateTitle
local subpage = title.subpageText
+
local sandboxTitle = env.sandboxTitle
if subpage == message('sandboxSubpage', 'string') or subpage == message('testcasesSubpage', 'string') then
+
if templateTitle.exists and sandboxTitle.exists then
return title.baseText
+
local compareUrl = mw.uri.fullUrl(
 +
'Special:ComparePages',
 +
{ page1 = templateTitle.prefixedText, page2 = sandboxTitle.prefixedText}
 +
)
 +
return tostring(compareUrl)
 
else
 
else
return title.text
+
return nil
 
end
 
end
end
+
end
 
 
function env:grab(key)
 
local success, val = pcall(function() return self[key] end)
 
return success, val
 
end
 
  
 
return env
 
return env
Line 228: Line 327:
 
----------------------------------------------------------------------------
 
----------------------------------------------------------------------------
  
function p.sandboxNotice(args, env)
+
p.getModuleWikitext = makeInvokeFunc('_getModuleWikitext')
local sandboxNoticeTemplate = message('sandboxNoticeTemplate', 'string')
+
 
if not (sandboxNoticeTemplate and env.title.subpageText == message('sandboxSubpage', 'string')) then
+
function p._getModuleWikitext(args, env)
return nil
+
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
local frame = mw.getCurrentFrame()
 
local notice = htmlBuilder.create()
 
notice
 
.tag('div')
 
.css('clear', 'both')
 
.done()
 
.wikitext(frame:expandTemplate{title = sandboxNoticeTemplate, args = {[message('sandboxNoticeLivepageParam')] = args[message('livepageArg', 'string')]}})
 
return tostring(notice)
 
 
end
 
end
  
function p.protectionTemplate(env)
+
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 title = env.title
local protectionTemplate = message('protectionTemplate', 'string')
+
local sandboxTitle = env.sandboxTitle
if not (protectionTemplate and title.namespace == 10) then
+
local templateTitle = env.templateTitle
-- Don't display the protection template if we are not in the template namespace.
+
local subjectSpace = env.subjectSpace
 +
if not (subjectSpace and title and sandboxTitle and templateTitle
 +
and mw.title.equals(title, sandboxTitle)) then
 
return nil
 
return nil
 
end
 
end
local frame = mw.getCurrentFrame()
+
-- Build the table of arguments to pass to {{ombox}}. We need just two fields, "image" and "text".
local function getProtectionLevel(protectionType, page)
+
local omargs = {}
-- Gets the protection level for page, or for the current page if page is not specified.
+
omargs.image = message('sandbox-notice-image')
local level = frame:callParserFunction('PROTECTIONLEVEL', protectionType, page)
+
-- Get the text. We start with the opening blurb, which is something like
if level ~= '' then
+
-- "This is the template sandbox for [[Template:Foo]] (diff)."
return level
+
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
 
else
return nil -- The parser function returns the blank string if there is no match.
+
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
 
end
 
end
local prefixedTitle = title.prefixedText
+
-- Add the sandbox to the sandbox category.
if getProtectionLevel('move', prefixedTitle) == 'sysop' or getProtectionLevel('edit', prefixedTitle) then
+
omargs.text = text .. makeCategoryLink(message('sandbox-category'))
-- The page is full-move protected, or full, template, or semi-protected.
+
 
return frame:expandTemplate{title = protectionTemplate, args = message('protectionTemplateArgs', 'table')}
+
-- '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
return nil
 
 
end
 
end
  
Line 275: Line 448:
  
 
function p._startBox(args, env)
 
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'
 +
-- 'file-docpage-preload' --> 'Template:Documentation/preload-filespace'
 +
-- 'module-preload' --> 'Template:Documentation/preload-module-doc'
 +
-- 'docpage-preload' --> 'Template:Documentation/preload'
 +
-- 'create-link-display' --> 'create'
 +
--]]
 +
local subjectSpace = env.subjectSpace
 
local title = env.title
 
local 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 == 6 then -- File namespace
 +
preload = message('file-docpage-preload')
 +
elseif subjectSpace == 828 then -- Module namespace
 +
preload = message('module-preload')
 +
else
 +
preload = message('docpage-preload')
 +
end
 +
end
 +
data.preload = preload
 +
data.createLinkDisplay = message('create-link-display')
 +
return data
 +
end
  
-- Arg processing from {{documentation}}.
+
function p.renderStartBoxLinks(data)
local preload = args[message('preloadArg', 'string')] -- Allow custom preloads.
+
--[[
local heading = args[message('headingArg', 'string')] -- Blank values are not removed.
+
-- Generates the [view][edit][history][purge] or [create][purge] links from the data table.
local headingStyle = args[message('headingStyleArg', 'string')]
+
-- @data - a table of data generated by p.makeStartBoxLinksData
local content = args[message('contentArg', 'string')]
+
--]]
local docspace = env.docspace
+
local docname = args[1] -- Other docname, if fed.
+
local function escapeBrackets(s)
local templatePage = env.templatePage
+
-- Escapes square brackets with HTML entities.
 +
s = s:gsub('%[', '&#91;') -- Replace square brackets with HTML entities.
 +
s = s:gsub('%]', '&#93;')
 +
return s
 +
end
  
-- Arg processing from {{documentation/start box2}}.
+
local ret
local docpage
+
local docTitle = data.docTitle
if docname then
+
local title = data.title
docpage = docname
+
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
 
else
local namespace = docspace or title.nsText
+
local createLink = makeUrlLink(docTitle:fullUrl{action = 'edit', preload = data.preload}, data.createLinkDisplay)
local pagename = templatePage or title.text
+
ret = '[%s] [%s]'
docpage = namespace .. ':' .. pagename .. '/' .. message('docSubpage', 'string')
+
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
 
end
local docTitle = mw.title.new(docpage)
+
local data = {}
local docExist = docTitle.exists
 
 
 
-- Output from {{documentation/start box}}.
+
-- Heading
 
+
local heading = args.heading -- Blank values are not removed.
-- First, check the heading parameter.
 
 
if heading == '' then
 
if heading == '' then
-- Heading is defined but blank, so do nothing.
+
-- Don't display the start box if the heading arg is defined but blank.
 
return nil
 
return nil
end
 
 
-- Build the start box div.
 
local sbox = htmlBuilder.create('div')
 
sbox
 
.css('padding-bottom', '3px')
 
.css('border-bottom', '1px solid #aaa')
 
.css('margin-bottom', '1ex')
 
.newline()
 
 
-- Make the heading.
 
local hspan = sbox.tag('span')
 
if headingStyle then
 
hspan.cssText(headingStyle)
 
elseif subjectSpace == 10 then
 
-- We are in the template or template talk namespaces.
 
hspan
 
.css('font-weight', 'bold')
 
.css('fond-size', '125%')
 
else
 
hspan.css('font-size', '150%')
 
 
end
 
end
 
if heading then
 
if heading then
-- "heading" has data.
+
data.heading = heading
hspan.wikitext(heading)
 
 
elseif subjectSpace == 10 then -- Template namespace
 
elseif subjectSpace == 10 then -- Template namespace
hspan.wikitext(message('documentationIconWikitext', 'string') .. ' ' .. message('templateNamespaceHeading', 'string'))
+
data.heading = message('documentation-icon-wikitext') .. ' ' .. message('template-namespace-heading')
 
elseif subjectSpace == 828 then -- Module namespace
 
elseif subjectSpace == 828 then -- Module namespace
hspan.wikitext(message('documentationIconWikitext', 'string') .. ' ' .. message('moduleNamespaceHeading', 'string'))
+
data.heading = message('documentation-icon-wikitext') .. ' ' .. message('module-namespace-heading')
 
elseif subjectSpace == 6 then -- File namespace
 
elseif subjectSpace == 6 then -- File namespace
hspan.wikitext(message('fileNamespaceHeading', 'string'))
+
data.heading = message('file-namespace-heading')
 
else
 
else
hspan.wikitext(message('otherNamespacesHeading', 'string'))
+
data.heading = message('other-namespaces-heading')
 
end
 
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
  
-- Add the [view][edit][history][purge] or [create] links.
+
function p.renderStartBox(data)
-- Check for the content parameter first, as we don't need the links if the documentation
+
-- Renders the start box html.
-- content is being entered directly onto the template page.
+
-- @data - a table of data generated by p.makeStartBoxData.
if not content then
+
local sbox = mw.html.create('div')
local lspan = sbox.tag('span') -- lspan is short for "link span".
+
sbox
lspan
+
-- 'documentation-startbox'
.addClass(message('startBoxLinkclasses', 'string'))
+
:addClass(message('start-box-class'))
.attr('id', message('startBoxLinkId', 'string'))
+
:newline()
if docExist then
+
:tag('span')
local viewLink = makeWikilink(docpage, message('viewLinkDisplay', 'string'))
+
:addClass(data.headingClass)
local editLink = makeUrlLink(docTitle:fullUrl{action = 'edit'}, message('editLinkDisplay', 'string'))
+
:cssText(data.headingStyleText)
local historyLink = makeUrlLink(docTitle:fullUrl{action = 'history'}, message('historyLinkDisplay', 'string'))
+
:wikitext(data.heading)
local purgeLink = makeUrlLink(title:fullUrl{action = 'purge'}, message('purgeLinkDisplay', 'string'))
+
local links = data.links
local text = '[%s] [%s] [%s] [%s]'
+
if links then
text = text:gsub('%[', '&#91;') -- Replace square brackets with HTML entities.
+
sbox:tag('span')
text = text:gsub('%]', '&#93;')
+
:addClass(data.linksClass)
lspan.wikitext(mw.ustring.format(text, viewLink, editLink, historyLink, purgeLink))
+
:attr('id', data.linksId)
else
+
:wikitext(links)
if not preload then
 
if subjectSpace == 6 then -- File namespace
 
preload = message('fileDocpagePreload', 'string')
 
else
 
preload = message('docpagePreload', 'string')
 
end
 
end
 
lspan.wikitext(makeUrlLink(docTitle:fullUrl{action = 'edit', preload = preload}, message('createLinkDisplay', 'string')))
 
end
 
 
end
 
end
 
 
return tostring(sbox)
 
return tostring(sbox)
 
end
 
end
Line 378: Line 649:
  
 
function p._content(args, env)
 
function p._content(args, env)
local content = args[message('contentArg', 'string')]
+
-- Displays the documentation contents
if not content then
+
-- @args - a table of arguments passed by the user
local docpage = args[1]
+
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
if docpage and mw.title.new(docpage).exists then
+
env = env or p.getEnvironment(args)
local frame = mw.getCurrentFrame()
+
local docTitle = env.docTitle
content = frame:preprocess('{{ ' .. docpage .. ' }}')
+
local content = args.content
else
+
if not content and docTitle and docTitle.exists then
docpage = env.docspace .. ':' .. env.templatePage .. '/' .. message('docSubpage', 'string')
+
content = args._content or mw.getCurrentFrame():expandTemplate{title = docTitle.prefixedText}
if mw.title.new(docpage).exists then
 
local frame = mw.getCurrentFrame()
 
content = frame:preprocess('{{ ' .. docpage .. ' }}')
 
end
 
end
 
 
end
 
end
 
-- The line breaks below are necessary so that "=== Headings ===" at the start and end
 
-- The line breaks below are necessary so that "=== Headings ===" at the start and end
 
-- of docs are interpreted correctly.
 
-- of docs are interpreted correctly.
 
return '\n' .. (content or '') .. '\n'  
 
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
  
Line 404: Line 682:
  
 
function p._endBox(args, env)
 
function p._endBox(args, env)
local title = env.title
+
--[=[
 +
-- 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 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
  
-- Argument processing in {{documentation}}.
+
-- Assemble the link box.
local content = args[message('contentArg', 'string')]
+
local text = ''
local linkBox = args[message('linkBoxArg', 'string')] -- So "link box=off" works.
+
if linkBox then
local docspace = env.docspace
+
text = text .. linkBox
local docname = args[1] -- Other docname, if fed.
 
local templatePage = env.templatePage
 
 
 
-- Argument processing in {{documentation/end box2}}.
 
local docpageRoot = (docspace or title.nsText) .. ':' .. (templatePage or title.text)
 
local docpage
 
if docname then
 
docpage = docname
 
 
else
 
else
docpage = docpageRoot .. '/' .. message('docSubpage', 'string')
+
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 docTitle = mw.title.new(docpage)
+
local docExist = docTitle.exists
+
local box = mw.html.create('div')
local docnameFed = args[1] and true
+
-- 'documentation-metadata'
local sandbox = docpageRoot .. '/' .. message('sandboxSubpage', 'string')
+
box:attr('role', 'note')
local testcases = docpageRoot .. '/' .. message('testcasesSubpage', 'string')
+
:addClass(message('end-box-class'))
templatePage = title.nsText .. ':' .. templatePage
+
-- 'plainlinks'
 +
:addClass(message('end-box-plainlinks'))
 +
:wikitext(text)
 +
:done()
 +
 
 +
return '\n' .. tostring(box)
 +
end
  
-- Output from {{documentation/end box}}
+
function p.makeDocPageBlurb(args, env)
+
--[=[
-- First, check whether we should output the end box at all. Add the end box by default if the documentation
+
-- Makes the blurb "This documentation is transcluded from [[Template:Foo]] (edit, history)".
-- exists or if we are in the user, module or template namespaces.
+
-- @args - a table of arguments passed by the user
if linkBox == message('linkBoxOff', 'string') or not (docExist or subjectSpace == 2 or subjectSpace == 828 or subjectSpace == 10) then
+
-- @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
 
return nil
 
end
 
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
  
-- Assemble the arguments for {{fmbox}}.
+
function p.makeExperimentBlurb(args, env)
local fmargs = {}
+
--[[
fmargs[message('fmboxIdParam', 'string')] = message('fmboxId', 'string') -- Sets fmargs.id = 'documentation-meta-data'
+
-- Renders the text "Editors can experiment in this template's sandbox (edit | diff) and testcases (edit) pages."
fmargs[message('fmboxImageParam', 'string')] = message('fmboxImageNone', 'string') -- Sets fmargs.image = 'none'
+
-- @args - a table of arguments passed by the user
fmargs[message('fmboxStyleParam', 'string')] = message('fmboxStyle', 'string') -- Sets fmargs.style = 'background-color: #ecfcf4'
+
-- @env - environment table containing title objects, etc., generated with p.getEnvironment
fmargs[message('fmboxTextstyleParam', 'string')] = message('fmboxTextstyle', 'string') -- Sets fmargs.textstyle = 'font-style: italic;'
+
--
 
+
-- Messages:
-- Assemble the fmbox text field.
+
-- 'sandbox-link-display' --> 'sandbox'
local text = ''
+
-- 'sandbox-edit-link-display' --> 'edit'
if linkBox then
+
-- 'compare-link-display' --> 'diff'
-- Use custom link box content if it is defined.
+
-- 'module-sandbox-preload' --> 'Template:Documentation/preload-module-sandbox'
text = text .. linkBox
+
-- '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
 
else
if docExist then
+
local sandboxPreload
-- /doc exists; link to it.
+
if subjectSpace == 828 then
local docLink = makeWikilink(docpage)
+
sandboxPreload = message('module-sandbox-preload')
local editLink = makeUrlLink(docTitle:fullUrl{action = 'edit'}, message('editLinkDisplay', 'string'))
+
else
local historyLink = makeUrlLink(docTitle:fullUrl{action = 'history'}, message('historyLinkDisplay', 'string'))
+
sandboxPreload = message('template-sandbox-preload')
text = text .. message('transcludedFromBlurb', 'string', {docLink}) .. ' ' .. makeToolbar(editLink, historyLink) .. '<br />'
+
end
elseif subjectSpace == 828 then
+
local sandboxCreateUrl = sandboxTitle:fullUrl{action = 'edit', preload = sandboxPreload}
-- /doc does not exist; ask to create it.
+
local sandboxCreateDisplay = message('sandbox-create-link-display')
local createLink = makeUrlLink(docTitle:fullUrl{action = 'edit', preload = message('modulePreload', 'string')}, message('createLinkDisplay', 'string'))
+
local sandboxCreateLink = makeUrlLink(sandboxCreateUrl, sandboxCreateDisplay)
text = text .. message('createModuleDocBlurb', 'string', {createLink}) .. '<br />'
+
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
-- Add links to /sandbox and /testcases when appropriate.
+
else
if subjectSpace == 2 or subjectSpace == 828 or subjectSpace == 10 then
+
local testcasesPreload
-- We are in the user, module or template namespaces.
+
if subjectSpace == 828 then
local sandboxLinks, testcasesLinks
+
testcasesPreload = message('module-testcases-preload')
local pagePossessive = subjectSpace == 828 and message('modulePossessive', 'string') or message('templatePossessive', 'string')
+
else
local sandboxTitle = mw.title.new(sandbox)
+
testcasesPreload = message('template-testcases-preload')
if sandboxTitle.exists then
 
local sandboxLink = makeWikilink(sandbox, message('sandboxLinkDisplay', 'string'))
 
local sandboxEditLink = makeUrlLink(sandboxTitle:fullUrl{action = 'edit'}, message('sandboxEditLinkDisplay', 'string'))
 
local compareLink = makeUrlLink(mw.title.new('Special:ComparePages'):fullUrl{page1 = templatePage, page2 = sandbox}, message('compareLinkDisplay', 'string'))
 
sandboxLinks = sandboxLink .. ' ' .. makeToolbar(sandboxEditLink, compareLink)
 
else
 
local sandboxPreload = subjectSpace == 828 and message('moduleSandboxPreload', 'string') or message('templateSandboxPreload', 'string')
 
local sandboxCreateLink = makeUrlLink(sandboxTitle:fullUrl{action = 'edit', preload = sandboxPreload}, message('sandboxCreateLinkDisplay', 'string'))
 
local mirrorSummary = message('mirrorEditSummary', 'string', {makeWikilink(templatePage)})
 
local mirrorLink = makeUrlLink(sandboxTitle:fullUrl{action = 'edit', preload = templatePage, summary = mirrorSummary}, message('mirrorLinkDisplay', 'string'))
 
sandboxLinks = message('sandboxLinkDisplay', 'string') .. ' ' .. makeToolbar(sandboxCreateLink, mirrorLink)
 
end
 
local testcaseTitle = mw.title.new(testcases)
 
if testcaseTitle.exists then
 
local testcasesLink = makeWikilink(testcases, message('testcasesLinkDisplay', 'string'))
 
local testcasesEditLink = makeUrlLink(testcaseTitle:fullUrl{action = 'edit'}, message('testcasesEditLinkDisplay', 'string'))
 
testcasesLinks = testcasesLink .. ' ' .. makeToolbar(testcasesEditLink)
 
else
 
local testcasesPreload = subjectSpace == 828 and message('moduleTestcasesPreload', 'string') or message('templateTestcasesPreload', 'string')
 
local testcasesCreateLink = makeUrlLink(testcaseTitle:fullUrl{action = 'edit', preload = testcasesPreload}, message('testcasesCreateLinkDisplay', 'string'))
 
testcasesLinks = message('testcasesLinkDisplay', 'string') .. ' ' .. makeToolbar(testcasesCreateLink)
 
end
 
text = text .. message('experimentBlurb', 'string', {pagePossessive, sandboxLinks, testcasesLinks}) .. '<br />'
 
-- Show the categories text, but not if "content" fed or "docname fed" since then it is unclear where to add the categories.
 
if not content and not docnameFed then
 
local docPathLink = makeWikilink(docpage, message('docLinkDisplay', 'string'))
 
text = text .. message('addCategoriesBlurb', 'string', {docPathLink})
 
end
 
-- Show the "subpages" link.
 
if subjectSpace ~= 6 then -- Don't show the link in file space.
 
local pagetype
 
if subjectSpace == 10 then
 
pagetype = message('templatePagetype', 'string')
 
elseif subjectSpace == 828 then
 
pagetype = message('modulePagetype', 'string')
 
else
 
pagetype = message('defaultPagetype', 'string')
 
end
 
text = text .. ' ' .. makeWikilink('Special:PrefixIndex/' .. templatePage .. '/', message('subpagesLinkDisplay', 'string', {pagetype}))
 
end
 
-- Show the "print" link if it exists.
 
local printPage = templatePage .. '/' .. message('printSubpage', 'string')
 
local printTitle = mw.title.new(printPage)
 
if printTitle.exists then
 
local printLink = makeWikilink(printPage, message('printLinkDisplay', 'string'))
 
text = text .. '<br />' .. message('printBlurb', 'string', {printLink})
 
.. (message('displayPrintCategory', 'boolean') and makeCategoryLink(message('printCategory', 'string')) or '')
 
end
 
 
end
 
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
 
end
fmargs.text = text
+
local docPathLink = makeWikilink(docTitle.prefixedText, message('doc-link-display'))
 +
return message('add-categories-blurb', {docPathLink})
 +
end
  
-- Return the fmbox output.
+
function p.makeSubpagesBlurb(args, env)
return messageBox.main('fmbox', fmargs)
+
--[[
 +
-- 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
 
end
  
Line 528: Line 953:
  
 
function p.addTrackingCategories(env)
 
function p.addTrackingCategories(env)
 +
--[[
 
-- Check if {{documentation}} is transcluded on a /doc or /testcases page.
 
-- 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 title = env.title
 +
local subjectSpace = env.subjectSpace
 +
if not title or not subjectSpace then
 +
return nil
 +
end
 +
local subpage = title.subpageText
 
local ret = ''
 
local ret = ''
local subpage = title.subpageText
+
if message('display-strange-usage-category', nil, 'boolean')
if message('displayStrangeUsageCategory', 'boolean') and (subpage == message('docSubpage', 'string') or subpage == message('testcasesSubpage', 'string')) then
+
and (
local sort = (title.namespace == 0 and message('strangeUsageCategoryMainspaceSort', 'string') or '') .. title.prefixedText -- Sort on namespace.
+
subpage == message('doc-subpage')
ret = ret .. makeCategoryLink(message('strangeUsageCategory', 'string'), sort)
+
or subjectSpace ~= 828 and subpage == message('testcases-subpage')
 +
)
 +
then
 +
ret = ret .. makeCategoryLink(message('strange-usage-category'))
 
end
 
end
 
return ret
 
return ret

Latest revision as of 18:49, 9 December 2021

Documentation for this module may be created at Module:Documentation/doc

-- 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'
	-- 'file-docpage-preload' --> 'Template:Documentation/preload-filespace'
	-- 'module-preload' --> 'Template:Documentation/preload-module-doc'
	-- 'docpage-preload' --> 'Template:Documentation/preload'
	-- 'create-link-display' --> 'create'
	--]]
	local subjectSpace = env.subjectSpace
	local title = env.title
	local docTitle = env.docTitle
	if not title or not docTitle then
		return nil
	end
	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 == 6 then -- File namespace
			preload = message('file-docpage-preload')
		elseif subjectSpace == 828 then -- Module namespace
			preload = message('module-preload')
		else
			preload = message('docpage-preload')
		end
	end
	data.preload = preload
	data.createLinkDisplay = message('create-link-display')
	return data
end

function p.renderStartBoxLinks(data)
	--[[
	-- Generates the [view][edit][history][purge] or [create][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