Module:Hatnote: Difference between revisions

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local libraryUtil = require('libraryUtil')
local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType
local checkType = libraryUtil.checkType
local checkTypeForNamedArg = libraryUtil.checkTypeForNamedArg
local mArguments -- lazily initialise [[Module:Arguments]]
local mArguments -- lazily initialise [[Module:Arguments]]
local yesno -- lazily initialise [[Module:Yesno]]
local yesno -- lazily initialise [[Module:Yesno]]
local formatLink -- lazily initialise [[Module:Format link]] ._formatLink


local p = {}
local p = {}
Line 28: Line 30:
-- Removes the initial colon from a string, if present.
-- Removes the initial colon from a string, if present.
return s:match('^:?(.*)')
return s:match('^:?(.*)')
end
function p.defaultClasses(inline)
-- Provides the default hatnote classes as a space-separated string; useful
-- for hatnote-manipulation modules like [[Module:Hatnote group]].
return
(inline == 1 and 'hatnote-inline' or 'hatnote') .. ' ' ..
'navigation-not-searchable'
end
function p.disambiguate(page, disambiguator)
-- Formats a page title with a disambiguation parenthetical,
-- i.e. "Example" → "Example (disambiguation)".
checkType('disambiguate', 1, page, 'string')
checkType('disambiguate', 2, disambiguator, 'string', true)
disambiguator = disambiguator or 'disambiguation'
return mw.ustring.format('%s (%s)', page, disambiguator)
end
end


Line 48: Line 67:
end
end
return 0
return 0
end
function p.formatPages(...)
-- Formats a list of pages using formatLink and returns it as an array. Nil
-- values are not allowed.
local pages = {...}
local ret = {}
for i, page in ipairs(pages) do
ret[i] = p._formatLink(page)
end
return ret
end
function p.formatPageTables(...)
-- Takes a list of page/display tables and returns it as a list of
-- formatted links. Nil values are not allowed.
local pages = {...}
local links = {}
for i, t in ipairs(pages) do
checkType('formatPageTables', i, t, 'table')
local link = t[1]
local display = t[2]
links[i] = p._formatLink(link, display)
end
return links
end
end


Line 93: Line 87:
-- Make the category text.
-- Make the category text.
local category
local category
if not title.isTalkPage and yesno(addTrackingCategory) ~= false then
if not title.isTalkPage -- Don't categorise talk pages
and title.namespace ~= 2 -- Don't categorise userspace
and yesno(addTrackingCategory) ~= false -- Allow opting out
then
category = 'Hatnote templates with errors'
category = 'Hatnote templates with errors'
category = string.format(
category = mw.ustring.format(
'[[%s:%s]]',
'[[%s:%s]]',
mw.site.namespaces[14].name,
mw.site.namespaces[14].name,
Line 103: Line 100:
category = ''
category = ''
end
end
return string.format(
return mw.ustring.format(
'<strong class="error">Error: %s%s.</strong>%s',
'<strong class="error">Error: %s%s.</strong>%s',
msg,
msg,
Line 111: Line 108:
end
end


function p.disambiguate(page, disambiguator)
local curNs = mw.title.getCurrentTitle().namespace
-- Formats a page title with a disambiguation parenthetical,
p.missingTargetCat =
-- i.e. "Example" → "Example (disambiguation)".
--Default missing target category, exported for use in related modules
checkType('disambiguate', 1, page, 'string')
((curNs ==  0) or (curNs == 14)) and
checkType('disambiguate', 2, disambiguator, 'string', true)
'Articles with hatnote templates targeting a nonexistent page' or nil
disambiguator = disambiguator or 'disambiguation'
return string.format('%s (%s)', page, disambiguator)
end


--------------------------------------------------------------------------------
function p.quote(title)
-- Format link
--Wraps titles in quotation marks. If the title starts/ends with a quotation
--
--mark, kerns that side as with {{-'}}
-- Makes a wikilink from the given link and display values. Links are escaped
local quotationMarks = {
-- with colons if necessary, and links to sections are detected and displayed
["'"]=true, ['"']=true, ['']=true, ["‘"]=true, ['']=true, ["’"]=true
-- with " § " as a separator rather than the standard MediaWiki "#". Used in
}
-- the {{format hatnote link}} template.
local quoteLeft, quoteRight = -- Test if start/end are quotation marks
--------------------------------------------------------------------------------
quotationMarks[string.sub(title,  1,  1)],
 
quotationMarks[string.sub(title, -1, -1)]
function p.formatLink(frame)
if quoteLeft or quoteRight then
local args = getArgs(frame)
title = mw.html.create("span"):wikitext(title)
local link = args[1]
local display = args[2]
if not link then
return p.makeWikitextError(
'no link specified',
'Template:Format hatnote link#Errors',
args.category
)
end
return p._formatLink(link, display)
end
 
function p._formatLink(link, display)
checkType('_formatLink', 1, link, 'string')
checkType('_formatLink', 2, display, 'string', true)
 
-- Remove the initial colon for links where it was specified manually.
link = removeInitialColon(link)
 
-- Find whether a faux display value has been added with the {{!}} magic
-- word.
if not display then
local prePipe, postPipe = link:match('^(.-)|(.*)$')
link = prePipe or link
display = postPipe
end
 
-- Find the display value.
if not display then
local page, section = link:match('^(.-)#(.*)$')
if page then
display = page .. ' §&nbsp;' .. section
end
end
 
-- Assemble the link.
if display then
return string.format(
'[[:%s|%s]]',
string.gsub(link, '|(.*)$', ''), --display overwrites manual piping
display
)
else
return string.format('[[:%s]]', link)
end
end
if quoteLeft  then title:css("padding-left",  "0.15em") end
if quoteRight then title:css("padding-right", "0.15em") end
return '"' .. tostring(title) .. '"'
end
end


Line 187: Line 140:
local args = getArgs(frame)
local args = getArgs(frame)
local s = args[1]
local s = args[1]
local options = {}
if not s then
if not s then
return p.makeWikitextError(
return p.makeWikitextError(
Line 195: Line 147:
)
)
end
end
options.extraclasses = args.extraclasses
return p._hatnote(s, {
options.selfref = args.selfref
extraclasses = args.extraclasses,
return p._hatnote(s, options)
selfref = args.selfref
})
end
end


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checkType('_hatnote', 2, options, 'table', true)
checkType('_hatnote', 2, options, 'table', true)
options = options or {}
options = options or {}
local classes = {'hatnote', 'navigation-not-searchable'}
local inline = options.inline
local extraclasses = options.extraclasses
local hatnote = mw.html.create(inline == 1 and 'span' or 'div')
local selfref = options.selfref
local extraclasses
if type(extraclasses) == 'string' then
if type(options.extraclasses) == 'string' then
classes[#classes + 1] = extraclasses
extraclasses = options.extraclasses
end
end
if selfref then
 
classes[#classes + 1] = 'selfref'
hatnote
end
:attr('role', 'note')
return string.format(
:addClass(p.defaultClasses(inline))
'<div role="note" class="%s">%s</div>',
:addClass(extraclasses)
table.concat(classes, ' '),
:addClass(options.selfref and 'selfref' or nil)
s
:wikitext(s)
)
 
return mw.getCurrentFrame():extensionTag{
name = 'templatestyles', args = { src = 'Module:Hatnote/styles.css' }
} .. tostring(hatnote)
end
end


return p
return p

Latest revision as of 17:20, 2 October 2023

Script error: No such module "Message box". Script error: No such module "Message box". Script error: No such module "Message box".

This is a meta-module that provides various functions for making hatnotes. It implements the {{hatnote}} template, for use in hatnotes at the top of pages, and the {{format link}} template, which is used to format a wikilink for use in hatnotes. It also contains a number of helper functions for use in other Lua hatnote modules.

Use from wikitext

The functions in this module cannot be used directly from #invoke, and must be used through templates instead. Please see Template:Hatnote and Template:Format link for documentation.

Use from other Lua modules

To load this module from another Lua module, use the following code.

local mHatnote = require('Module:Hatnote')

You can then use the functions as documented below.

Hatnote

mHatnote._hatnote(s, options)

Formats the string s as a hatnote. This encloses s in the tags <div class="hatnote">...</div>. Options are provided in the options table. Options include:

  • options.extraclasses - a string of extra classes to provide
  • options.selfref - if this is not nil or false, adds the class "selfref", used to denote self-references to Wikipedia (see Template:Selfref))

The CSS of the hatnote class is defined in MediaWiki:Common.css.

Example 1
mHatnote._hatnote('This is a hatnote.')

Produces: <div class="hatnote">This is a hatnote.</div>

Displays as: Template:Hatnote

Example 2
mHatnote._hatnote('This is a hatnote.', {extraclasses = 'boilerplate seealso', selfref = true})

Produces: <div class="hatnote boilerplate seealso selfref">This is a hatnote.</div>

Displayed as: Template:Hatnote

Format link

mHatnote._formatLink(link, display)

Formats link as a wikilink for display in hatnote templates, with optional display value display. Categories and files are automatically escaped with the colon trick, and links to sections are automatically formatted as page § section, rather than the MediaWiki default of page#section.

Examples
mHatnote._formatLink('Lion') → [[Lion]] → Script error: The function "formatLink" does not exist.
mHatnote._formatLink('Lion#Etymology') → [[Lion#Etymology|Lion § Etymology]] → Script error: The function "formatLink" does not exist.
mHatnote._formatLink('Category:Lions') → [[:Category:Lions]] → Script error: The function "formatLink" does not exist.
mHatnote._formatLink('Lion#Etymology', 'Etymology of lion') → [[Lion#Etymology|Etymology of lion]] → Script error: The function "formatLink" does not exist.

Format pages

mHatnote.formatPages(...)

Formats a list of pages using the _formatLink function, and returns the result as an array. For example, the code mHatnote.formatPages('Lion', 'Category:Lions', 'Lion#Etymology') would produce an array like {'[[Lion]]', '[[:Category:Lions]]', '[[Lion#Etymology|Lion § Etymology]]'}.

Format page tables

mHatnote.formatPageTables(...)

Takes a list of page/display tables, formats them with the _formatLink function, and returns the result as an array. Each item in the list must be a table. The first value in the table is the link, and is required. The second value in the table is the display value, and is optional. For example, the code mHatnote.formatPages({'Lion', 'the Lion article'}, {'Category:Lions'}, {'Lion#Etymology', 'the etymology of lion'}) would produce an array like {'[[Lion|the Lion article]]', '[[:Category:Lions]]', '[[Lion#Etymology|the etymology of lion]]'}.

Find namespace id

mHatnote.findNamespaceId(link, removeColon)

Finds the namespace id of the string link, which should be a valid page name, with or without the section name. This function will not work if the page name is enclosed with square brackets. When trying to parse the namespace name, colons are removed from the start of the link by default. This is helpful if users have specified colons when they are not strictly necessary. If you do not need to check for initial colons, set removeColon to false.

Examples
mHatnote.findNamespaceId('Lion') → 0
mHatnote.findNamespaceId('Category:Lions') → 14
mHatnote.findNamespaceId(':Category:Lions') → 14
mHatnote.findNamespaceId(':Category:Lions', false) → 0 (the namespace is detected as ":Category", rather than "Category")

Make wikitext error

mHatnote.makeWikitextError(msg, helpLink, addTrackingCategory)

Formats the string msg as a red wikitext error message, with optional link to a help page helpLink. Normally this function also adds Category:Hatnote templates with errors (0); however, if addTrackingCategory is not false after being passed through Module:Yesno, then the category is suppressed. This means that the category can be suppressed with addTrackingCategory values including "no", "n", 0, "false", and false.

Examples:

mHatnote.makeWikitextError('an error has occurred')Error: an error has occurred.
mHatnote.makeWikitextError('an error has occurred', 'Template:Example#Errors')Error: an error has occurred (help).

Examples

For examples of how this module is used in other Lua modules, see the following (listed in order of complexity):


--------------------------------------------------------------------------------
--                              Module:Hatnote                                --
--                                                                            --
-- This module produces hatnote links and links to related articles. It       --
-- implements the {{hatnote}} and {{format link}} meta-templates and includes --
-- helper functions for other Lua hatnote modules.                            --
--------------------------------------------------------------------------------

local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType
local checkTypeForNamedArg = libraryUtil.checkTypeForNamedArg
local mArguments -- lazily initialise [[Module:Arguments]]
local yesno -- lazily initialise [[Module:Yesno]]
local formatLink -- lazily initialise [[Module:Format link]] ._formatLink

local p = {}

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

local function getArgs(frame)
	-- Fetches the arguments from the parent frame. Whitespace is trimmed and
	-- blanks are removed.
	mArguments = require('Module:Arguments')
	return mArguments.getArgs(frame, {parentOnly = true})
end

local function removeInitialColon(s)
	-- Removes the initial colon from a string, if present.
	return s:match('^:?(.*)')
end

function p.defaultClasses(inline)
	-- Provides the default hatnote classes as a space-separated string; useful
	-- for hatnote-manipulation modules like [[Module:Hatnote group]].
	return
		(inline == 1 and 'hatnote-inline' or 'hatnote') .. ' ' ..
		'navigation-not-searchable'
end

function p.disambiguate(page, disambiguator)
	-- Formats a page title with a disambiguation parenthetical,
	-- i.e. "Example" → "Example (disambiguation)".
	checkType('disambiguate', 1, page, 'string')
	checkType('disambiguate', 2, disambiguator, 'string', true)
	disambiguator = disambiguator or 'disambiguation'
	return mw.ustring.format('%s (%s)', page, disambiguator)
end

function p.findNamespaceId(link, removeColon)
	-- Finds the namespace id (namespace number) of a link or a pagename. This
	-- function will not work if the link is enclosed in double brackets. Colons
	-- are trimmed from the start of the link by default. To skip colon
	-- trimming, set the removeColon parameter to false.
	checkType('findNamespaceId', 1, link, 'string')
	checkType('findNamespaceId', 2, removeColon, 'boolean', true)
	if removeColon ~= false then
		link = removeInitialColon(link)
	end
	local namespace = link:match('^(.-):')
	if namespace then
		local nsTable = mw.site.namespaces[namespace]
		if nsTable then
			return nsTable.id
		end
	end
	return 0
end

function p.makeWikitextError(msg, helpLink, addTrackingCategory, title)
	-- Formats an error message to be returned to wikitext. If
	-- addTrackingCategory is not false after being returned from
	-- [[Module:Yesno]], and if we are not on a talk page, a tracking category
	-- is added.
	checkType('makeWikitextError', 1, msg, 'string')
	checkType('makeWikitextError', 2, helpLink, 'string', true)
	yesno = require('Module:Yesno')
	title = title or mw.title.getCurrentTitle()
	-- Make the help link text.
	local helpText
	if helpLink then
		helpText = ' ([[' .. helpLink .. '|help]])'
	else
		helpText = ''
	end
	-- Make the category text.
	local category
	if not title.isTalkPage -- Don't categorise talk pages
		and title.namespace ~= 2 -- Don't categorise userspace
		and yesno(addTrackingCategory) ~= false -- Allow opting out
	then
		category = 'Hatnote templates with errors'
		category = mw.ustring.format(
			'[[%s:%s]]',
			mw.site.namespaces[14].name,
			category
		)
	else
		category = ''
	end
	return mw.ustring.format(
		'<strong class="error">Error: %s%s.</strong>%s',
		msg,
		helpText,
		category
	)
end

local curNs = mw.title.getCurrentTitle().namespace
p.missingTargetCat =
	--Default missing target category, exported for use in related modules
	((curNs ==  0) or (curNs == 14)) and
	'Articles with hatnote templates targeting a nonexistent page' or nil

function p.quote(title)
	--Wraps titles in quotation marks. If the title starts/ends with a quotation
	--mark, kerns that side as with {{-'}}
	local quotationMarks = {
		["'"]=true, ['"']=true, ['“']=true, ["‘"]=true, ['”']=true, ["’"]=true
	}
	local quoteLeft, quoteRight = -- Test if start/end are quotation marks
		quotationMarks[string.sub(title,  1,  1)],
		quotationMarks[string.sub(title, -1, -1)]
	if quoteLeft or quoteRight then
		title = mw.html.create("span"):wikitext(title)
	end
	if quoteLeft  then title:css("padding-left",  "0.15em") end
	if quoteRight then title:css("padding-right", "0.15em") end
	return '"' .. tostring(title) .. '"'
end

--------------------------------------------------------------------------------
-- Hatnote
--
-- Produces standard hatnote text. Implements the {{hatnote}} template.
--------------------------------------------------------------------------------

function p.hatnote(frame)
	local args = getArgs(frame)
	local s = args[1]
	if not s then
		return p.makeWikitextError(
			'no text specified',
			'Template:Hatnote#Errors',
			args.category
		)
	end
	return p._hatnote(s, {
		extraclasses = args.extraclasses,
		selfref = args.selfref
	})
end

function p._hatnote(s, options)
	checkType('_hatnote', 1, s, 'string')
	checkType('_hatnote', 2, options, 'table', true)
	options = options or {}
	local inline = options.inline
	local hatnote = mw.html.create(inline == 1 and 'span' or 'div')
	local extraclasses
	if type(options.extraclasses) == 'string' then
		extraclasses = options.extraclasses
	end

	hatnote
		:attr('role', 'note')
		:addClass(p.defaultClasses(inline))
		:addClass(extraclasses)
		:addClass(options.selfref and 'selfref' or nil)
		:wikitext(s)

	return mw.getCurrentFrame():extensionTag{
		name = 'templatestyles', args = { src = 'Module:Hatnote/styles.css' }
	} .. tostring(hatnote)
end

return p