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This module implements the {{about}} hatnote template.


  • The about function implements the {{about}} template directly, using the frame and applying no options. This should probably only be used in {{about}}.
  • The _about function can be used from Lua to supply a custom arguments list (its first argument) and/or an options table (its second argument). Options include:
    • aboutForm A string that can be used to substitute the form of the initial "about" message. It should include two substitution points: the first for the page type (e.g. "article"), and the second for the description of what the page is about. It should also include a trailing space for easy concatenation or omission. Defaults to 'This %s is about %s. '.
    • sectionString Gives the page type string for when the named argument section is specified. Defaults to 'section'.
    • pageTypeStrings Gives the page type string when provided by namespace. Defaults to {[0] = 'article', [14] = 'category'}.
    • defaultPageType Gives the page type string when neither the section argument nor the namespace provide the page type. Defaults to 'page'.

local mArguments --initialize lazily
local mHatnote = require('Module:Hatnote')
local mHatList = require('Module:Hatnote list')
local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType
local p = {}

function p.about (frame)
	-- A passthrough that gets args from the frame and all

	mArguments = require('Module:Arguments')
	args = mArguments.getArgs(frame)
	return p._about(args)

function p._about (args, options)
	-- Produces "about" hatnote.

	-- Type checks and defaults
	checkType('_about', 1, args, 'table', true)
	args = args or {}
	checkType('_about', 2, options, 'table', true)
	options = options or {}
	local defaultOptions = {
		aboutForm = 'This %s is about %s. ',
		defaultPageType = 'page',
		namespace = mw.title.getCurrentTitle().namespace,
		otherText = nil, --included for complete list
		pageTypesByNamespace = {
			[0] = 'article',
			[14] = 'category'
		sectionString = 'section'
	for k, v in pairs(defaultOptions) do
		if options[k] == nil then options[k] = v end

	-- Set initial "about" string
	local pageType = (args.section and options.sectionString) or
		options.pageTypesByNamespace[options.namespace] or
	local about = ''
	if args[1] then
		about = string.format(options.aboutForm, pageType, args[1])
	--Allow passing through certain options
	local fsOptions = {
		otherText = options.otherText

	-- Set for-see list
	local forSee = mHatList._forSee(args, 2, fsOptions)

	-- Concatenate and return
	return mHatnote._hatnote(about .. forSee)

return p
"" වෙතින් සම්ප්‍රවේශනය කෙරිණි