Module:Hatnote inline

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Revision as of 06:03, 22 June 2016 by test>SMcCandlish (CSS class update (the selfref one is actually selfreference, and it should also use noprint))
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The {{Hatnote inline}} meta-template formats text into a standardized style for an inline (not block-level) variant of a Wikipedia:Hatnote, a short note placed at the point of insertion, to link to more information or otherwise cross-reference another Wikipedia page. like this: Example inline hatnote text.

The most common uses for this meta-template are:

Usage

Basic usage
{{hatnote inline|text}}
All parameters
{{hatnote inline|text|extraclasses=class1 class2|selfref=yes|category=no}}

The meta-template does not automatically create links of any kind. Links and other desired formatting must be explicitly added, using normal Wikipedia markup.

Parameters

This template accepts the following parameters:

  • |1= or |text= or |content= the inline hatnote's text (required). While the explicit naming of this parameter with 1=, text=, or content= is not required, it is always safest to use it this way, since any = character in the text will break the template if the parameter is unnamed.
  • |class= or |extraclasses= any extra CSS classes to be added. This should not normally be used.
  • |selfref=no – if set to no (or n, false, 0, etc.) removes the default CSS class selfref, used to denote unprintworthy self-references to Wikipedia (see Template:Selfref for more information). This option should not be used to indicate a non-selfref on cross-article links, only links within the same article (and the derived shorthand templates {{See above}} and {{See below}} do this automatically). The parameter alias |printworthy=yes (or with any other value, like y, true, 1, etc.) has the same effect as |selfref=no. Note the attempting to manually supply a "this is a selfref" value with |selfref=yes or |printworthy=no will not have the desired effect (which is the default anyway); the meta-template is set to selfref by default, since most uses are self-references (only those within the same article as the template are not).
  • |category= if set to no (or n, false, 0, etc., suppresses the error-tracking category (Category:Hatnote templates with errors). This only has an effect if the first positional parameter (the hatnote text) is omitted. This should not normally be used.

Technical details

The meta-template places an HTML <span>...</span> container around the text entered as its first, required parameter, upon which it provides standardized formatting (italicized in most displays, and only stylistically, not as semantic emphasis); it also uses CSS classes to isolate the contained code to make sure that it is interpreted correctly and can be acted upon independently of true article content.

The HTML code produced by this template looks like this:

  • <span class="hatnote">hatnote text</span>

This is the same class used by the <div>-based {{hatnote}} template, the block display of which is controlled by a separate div.hatnote directive in Mediawiki:Common.css.

The output is produced by Module:Hatnote inline.

See also

Templates based on this meta-template


--------------------------------------------------------------------------------
--                              Module:Hatnote-inline                         --
--                                                                            --
-- This module produces hatnote-style links and links to related articles,    --
-- but inside a <span>, instead of the <div> used by Module:Hatnote.  It      --
-- implements the {{hatnote-inline}} meta-template.                           --
--------------------------------------------------------------------------------

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

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.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 true.
	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.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

function p.makeWikitextError(msg, helpLink, addTrackingCategory)
	-- 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')
	local title = 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 and yesno(addTrackingCategory) ~= false then
		category = 'Hatnote templates with errors'
		category = string.format(
			'[[%s:%s]]',
			mw.site.namespaces[14].name,
			category
		)
	else
		category = ''
	end
	return string.format(
		'<strong class="error">Error: %s%s.</strong>%s',
		msg,
		helpText,
		category
	)
end

--------------------------------------------------------------------------------
-- Format link
--
-- Makes a wikilink from the given link and display values. Links are escaped
-- with colons if necessary, and links to sections are detected and displayed
-- with " § " as a separator rather than the standard MediaWiki "#". Used in
-- the {{format hatnote link}} template.
--------------------------------------------------------------------------------

function p.formatLink(frame)
	local args = getArgs(frame)
	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)
	-- Find whether we need to use the colon trick or not. We need to use the
	-- colon trick for categories and files, as otherwise category links
	-- categorise the page and file links display the file.
	checkType('_formatLink', 1, link, 'string')
	checkType('_formatLink', 2, display, 'string', true)
	link = removeInitialColon(link)
	local namespace = p.findNamespaceId(link, false)
	local colon
	if namespace == 6 or namespace == 14 then
		colon = ':'
	else
		colon = ''
	end

	-- 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 .. ' § ' .. section
		end
	end

	-- Assemble the link.
	if display then
		return string.format('[[%s%s|%s]]', colon, link, display)
	else
		return string.format('[[%s%s]]', colon, link)
	end
end

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

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

function p._hatnote(s, options)
	checkType('_hatnote', 1, s, 'string')
	checkType('_hatnote', 2, options, 'table', true)
	local classes = {'hatnote'}
	local extraclasses = options.extraclasses
	local selfref = options.selfref
	if type(extraclasses) == 'string' then
		classes[#classes + 1] = extraclasses
	end
	if selfref then
		classes[#classes + 1] = 'selfreference noprint'
	end
	local tag = options.inline and 'span' or 'div'
	return string.format(
		'<%s class="%s">%s</%s>',
		tag,
		table.concat(classes, ' '),
		s,
		tag
	)
end

return p