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    Farthest Frontier

    Lua error in Module:TNT at line 166: Missing Commons dataset I18n/Module:TNT.tab. 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[edit source]

    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[edit source]

    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[edit source]

    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 Module:Hatnote/styles.css.

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

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

    Displays as:

    This is a 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:

    This is a hatnote.

    Find namespace id[edit source]

    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[edit source]

    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). To suppress categorization, pass false as third parameter of the function (addTrackingCategory).

    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[edit source]

    For an example of how this module is used in other Lua modules, see Module:Main


    --------------------------------------------------------------------------------
    --                              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 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
    
    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 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
    
    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
    
    --------------------------------------------------------------------------------
    -- 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(inline == 1 and 'hatnote-inline' or 'hatnote')
    		:addClass('navigation-not-searchable')
    		: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
    
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