Module:Authority control

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This module contains the code of the {{Authority control}} template. See its documentation.

Parameter names and associated Wikidata properties

Lua error at line 381: too many expensive function calls.

Other tracking categories

This module currently implements the following additional hidden tracking categories:

Existing categories not currently implemented in module

Number of identifiers

require('Module:No globals')

local p = {}

function p.getCatForId( id )
	local title = mw.title.getCurrentTitle()
	local namespace = title.namespace
	local cat = ''
	local redcat = ''
	if namespace == 0 then
		cat = 'Wikipedia articles with ' .. id .. ' identifiers'
	elseif namespace == 2 and not title.isSubpage then
		cat = 'User pages with ' .. id .. ' identifiers'
	else
		cat = 'Miscellaneous pages with ' .. id .. ' identifiers'
	end
	if mw.title.new(cat, 14).exists == false then
		redcat = '[[Category:Pages with red-linked authority control categories]]'
	end
	cat = '[[Category:' .. cat .. ']]'
	return cat .. redcat
end

function p.iaafLink( id )
    if not string.match( id, '^%d+$' ) then
        return false
    end
    return '[https://www.iaaf.org/athletes/biographies/athcode=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'IAAF' )
end

function p.viafLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[https://viaf.org/viaf/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'VIAF' )
end

function p.kulturnavLink( id )
	return '[http://kulturnav.org/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'KULTURNAV' )
end

function p.sikartLink( id )
	return '[http://www.sikart.ch/KuenstlerInnen.aspx?id=' .. id .. '&lng=en ' .. id .. ']' .. p.getCatForId( 'SIKART' )
end

function p.tlsLink( id )
	local id2 = id:gsub(' +', '_')
	return '[http://tls.theaterwissenschaft.ch/wiki/' .. id2 .. ' ' .. id .. ']' .. p.getCatForId( 'TLS' )
end

function p.ciniiLink( id )
	return '[https://ci.nii.ac.jp/author/' .. id .. '?l=en ' .. id .. ']' .. p.getCatForId( 'CINII' )
end

function p.bneLink( id )
	return '[http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?action=display&authority_id=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'BNE' )
end

function p.uscongressLink( id )
	return '[http://bioguide.congress.gov/scripts/biodisplay.pl?index=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'USCongress' )
end

function p.narapersonLink( id )
	return '[https://research.archives.gov/person/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'NARA-person' )
end

function p.naraorganizationLink( id )
	return '[https://research.archives.gov/organization/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'NARA-organization' )
end

function p.naraLink( id )
	return '[https://catalog.archives.gov/id/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'NARA' )
end

function p.botanistLink( id )
	local id2 = id:gsub(' +', '%%20')
	return '[http://www.ipni.org/ipni/advAuthorSearch.do?find_abbreviation=' .. id2 .. ' ' .. id .. ']' .. p.getCatForId( 'Botanist' )
end

function p.mgpLink( id )
	-- TODO Implement some sanity checking regex
	return '[http://www.genealogy.ams.org/id.php?id=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'MGP' )
end

function p.rslLink( id )
	-- TODO Implement some sanity checking regex
	return '[http://aleph.rsl.ru/F?func=find-b&find_code=SYS&adjacent=Y&local_base=RSL11&request=' .. id .. '&CON_LNG=ENG ' .. id .. ']' .. p.getCatForId( 'RLS' ) --RLS == known typo
end

function p.leonoreLink( id )
-- Identifiants allant de LH/1/1 à LH/2794/54 (légionnaires)
-- Identifiants allant de C/0/1 à C/0/84 (84 légionnaires célèbres)
-- Identifiants allant de 19800035/1/1 à 19800035/385/51670 (légionnaires décédés entre 1954 et 1977, et quelques dossiers de légionnaires décédés avant 1954)
	if not string.match( id, '^LH/%d%d?%d?%d?/%d%d?%d?$' ) and
	   not string.match( id, '^C/0/%d%d?$' ) and
	   not string.match( id, '^19800035/%d%d?%d?%d?/%d%d?%d?%d?%d?$' ) then
		return false
	end
	return '[http://www.culture.gouv.fr/public/mistral/leonore_fr?ACTION=CHERCHER&FIELD_1=COTE&VALUE_1=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'Léonore' )
end

function p.sbnLink( id )
	if not string.match( id, '^IT\\ICCU\\%d%d%d%d%d%d%d%d%d%d$' ) and not string.match( id, '^IT\\ICCU\\%u%u[%d%u]%u\\%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://opac.sbn.it/opacsbn/opac/iccu/scheda_authority.jsp?bid=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'SBN' )
end

function p.nkcLink( id )
	return '[https://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=' .. id .. '&CON_LNG=ENG ' .. id .. ']' .. p.getCatForId( 'NKC' )
end

function p.nclLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[http://aleweb.ncl.edu.tw/F/?func=accref&acc_sequence=' .. id .. '&CON_LNG=ENG ' .. id .. ']' .. p.getCatForId( 'NCL' )
end

function p.ndlLink( id )
	return '[https://id.ndl.go.jp/auth/ndlna/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'NDL' )
end

function p.sudocLink( id )
	if not string.match( id, '^%d%d%d%d%d%d%d%d[%dxX]$' ) then
		return false
	end
	return '[https://www.idref.fr/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'SUDOC' )
end

function p.hdsLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[http://www.hls-dhs-dss.ch/textes/f/F' .. id .. '.php ' .. id .. ']' .. p.getCatForId( 'HDS' )
end

function p.lirLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[http://www.e-lir.ch/e-LIR___Lexicon.' .. id .. '.450.0.html ' .. id .. ']' .. p.getCatForId( 'LIR' )
end

function p.splitLccn( id )
	if id:match( '^%l%l?%l?%d%d%d%d%d%d%d%d%d?%d?$' ) then
		id = id:gsub( '^(%l+)(%d+)(%d%d%d%d%d%d)$', '%1/%2/%3' )
	end
	if id:match( '^%l%l?%l?/%d%d%d?%d?/%d+$' ) then
		return mw.text.split( id, '/' )
	end
	return false
end

function p.append(str, c, length)
	while str:len() < length do
		str = c .. str
	end
	return str
end

function p.lccnLink( id )
	local parts = p.splitLccn( id )
	if not parts then
		return false
	end
	local lccnType = parts[1] ~= 'sh' and 'names' or 'subjects'
	id = parts[1] .. parts[2] .. p.append( parts[3], '0', 6 )
	return '[http://id.loc.gov/authorities/' .. lccnType .. '/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'LCCN' )
end

function p.mbLink( id )
	-- TODO Implement some sanity checking regex
	return '[https://musicbrainz.org/artist/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'MusicBrainz' )
end

--Returns the ISNI check digit isni must be a string where the 15 first elements are digits
function p.getIsniCheckDigit( isni )
	local total = 0
	for i = 1, 15 do
		local digit = isni:byte( i ) - 48 --Get integer value
		total = (total + digit) * 2
	end
	local remainder = total % 11
	local result = (12 - remainder) % 11
	if result == 10 then
		return "X"
	end
	return tostring( result )
end

--Validate ISNI (and ORCID) and retuns it as a 16 characters string or returns false if it's invalid
--See http://support.orcid.org/knowledgebase/articles/116780-structure-of-the-orcid-identifier
function p.validateIsni( id )
	id = id:gsub( '[ %-]', '' ):upper()
	if not id:match( '^%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d[%dX]$' ) then
		return false
	end
	if p.getIsniCheckDigit( id ) ~= string.char( id:byte( 16 ) ) then
		return false
	end
	return id
end

function p.isniLink( id )
	id = p.validateIsni( id )
	if not id then
		return false
	end
	return '[http://isni.org/isni/' .. id .. ' ' .. id:sub( 1, 4 ) .. ' ' .. id:sub( 5, 8 ) .. ' '  .. id:sub( 9, 12 ) .. ' '  .. id:sub( 13, 16 ) .. ']' .. p.getCatForId( 'ISNI' )
end

function p.orcidLink( id )
	id = p.validateIsni( id )
	if not id then
		return false
	end
	id = id:sub( 1, 4 ) .. '-' .. id:sub( 5, 8 ) .. '-'  .. id:sub( 9, 12 ) .. '-'  .. id:sub( 13, 16 )
	return '[https://orcid.org/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'ORCID' )
end

function p.gndLink( id )
	return '[https://d-nb.info/gnd/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'GND' )
end

function p.selibrLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[https://libris.kb.se/auth/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'SELIBR' )
end

function p.bnfLink( id )
	--Add cb prefix if it has been removed
	if not string.match( id, '^cb.+$' ) then
		id = 'cb' .. id
	end

	return '[http://catalogue.bnf.fr/ark:/12148/' .. id .. ' ' .. id .. '] [http://data.bnf.fr/ark:/12148/' .. id .. ' (data)]' .. p.getCatForId( 'BNF' )
end

function p.bpnLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[http://www.biografischportaal.nl/en/persoon/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'BPN' )
end

function p.ridLink( id )
	return '[https://www.researcherid.com/rid/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'RID' )
end

function p.bibsysLink( id )
	return '[https://authority.bibsys.no/authority/rest/authorities/html/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'BIBSYS' )
end

function p.ulanLink( id )
	return '[https://www.getty.edu/vow/ULANFullDisplay?find=&role=&nation=&subjectid=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'ULAN' )
end

function p.nlaLink( id )
	return '[https://nla.gov.au/anbd.aut-an' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'NLA' )
end

function p.rkdartistsLink( id )
	return '[https://rkd.nl/en/explore/artists/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'RKDartists' )
end

function p.snacLink( id )
	return '[http://socialarchive.iath.virginia.edu/ark:/99166/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'SNAC-ID' )
end

function p.dblpLink( id )
	return '[https://dblp.org/pid/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'DBLP' )
end

function p.acmLink( id )
	return '[https://dl.acm.org/author_page.cfm?id=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'ACM-DL' )
end

function p.autoresuyLink( id )
	return '[http://autores.uy/autor/' .. id .. ' ' .. id .. ']' ..  p.getCatForId( 'autores.uy' )
end

function p.picLink( id )
	return '[https://pic.nypl.org/constituents/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'PIC' )
end

function p.bildLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[https://www.bildindex.de/document/obj' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'Bildindex' )
end

function p.jocondeLink( id )
	return '[http://www2.culture.gouv.fr/public/mistral/joconde_fr?ACTION=CHERCHER&FIELD_1=REF&VALUE_1=' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'Joconde' )
end

function p.rkdidLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[https://rkd.nl/nl/explore/images/' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'RKDID' )
end

function p.balatLink( id )
	if not string.match( id, '^%d+$' ) then
		return false
	end
	return '[http://balat.kikirpa.be/object/104257' .. id .. ' ' .. id .. ']' .. p.getCatForId( 'BALaT' )
end

function p.getIdsFromWikidata( itemId, property )
	local ids = {}
	local statements = mw.wikibase.getBestStatements( itemId, property )
	if statements then
		for _, statement in ipairs( statements ) do
			if statement.mainsnak.datavalue then
				table.insert( ids, statement.mainsnak.datavalue.value )
			end
		end
	end
	return ids
end

function p.matchesWikidataRequirements( itemId, reqs )
	for _, group in ipairs( reqs ) do
		local property = 'P' .. group[1]
		local qid = group[2]
		local statements = mw.wikibase.getBestStatements( itemId, property )
		if statements ~= nil then
			for _, statement in ipairs( statements ) do
				if statement.mainsnak.datavalue ~= nil then
					if statement.mainsnak.datavalue.value['numeric-id'] == qid then
						return true
					end
				end
			end
		end
	end
	return false
end

function p.createRow( id, label, rawValue, link, withUid )
	if link then
		if withUid then
			return '*<span class="nowrap">' .. label .. ' <span class="uid">' .. link .. '</span></span>\n'
		end

		return '*<span class="nowrap">' .. label .. ' ' .. link .. '</span>\n'
	end

	return '* <span class="error">The ' .. id .. ' id ' .. rawValue .. ' is not valid.</span>[[Category:Wikipedia articles with faulty authority control identifiers (' .. id .. ')]]\n'
end

-- Creates a human-readable standalone wikitable version of p.conf, and tracking categories with page counts, for use in the documentation
function p.docConfTable( frame )
	local wikiTable = '{| class="wikitable sortable"\n' .. 
					  '! rowspan=2 | Parameter\n' ..
					  '! rowspan=2 | Label\n' ..
					  '! rowspan=2; data-sort-type=number | Wikidata property\n' ..
					  '! colspan=4 | Tracking categories and page counts\n' ..
					  '|-\n' ..
					  '! Articles\n' ..
					  '! User pages\n' ..
					  '! Misc. pages\n' ..
					  '! Faulty IDs\n' ..
					  '|-\n'
	
	for _, conf in pairs( p.conf ) do
		local param, link, pid = conf[1], conf[2], conf[3]
		if param == 'MBA' then param = 'MusicBrainz' end --it's weird
		local args = { id = 'f', pid }
		local wpl = frame:expandTemplate{ title = 'Wikidata property link', args = args }
		local articleCat = 'Wikipedia articles with '..param..' identifiers'
		local userCat =    'User pages with '..param..' identifiers'
		local miscCat =    'Miscellaneous pages with '..param..' identifiers'
		local faultyCat =  'Wikipedia articles with faulty authority control identifiers ('..param..')'
		local lang = mw.getContentLanguage()
		local articleCount = lang:formatNum( mw.site.stats.pagesInCategory(articleCat, 'pages') )
		local userCount =    lang:formatNum( mw.site.stats.pagesInCategory(userCat, 'pages') )
		local miscCount =    lang:formatNum( mw.site.stats.pagesInCategory(miscCat, 'pages') )
		local faultyCount =  lang:formatNum( mw.site.stats.pagesInCategory(faultyCat, 'pages') )
		wikiTable = wikiTable..'\n'..
					'|-\n'..
					'||'..param..
					'||'..link..
					'||data-sort-value='..pid..'|'..wpl..
					'||style="text-align: right;"|[[:Category:'..articleCat..'|'..articleCount..']]'..
					'||style="text-align: right;"|[[:Category:'..   userCat..'|'..   userCount..']]'..
					'||style="text-align: right;"|[[:Category:'..   miscCat..'|'..   miscCount..']]'..
					'||style="text-align: right;"|[[:Category:'.. faultyCat..'|'.. faultyCount..']]'
	end
	return wikiTable .. '\n|}'
end

-- Check that the Wikidata item has this property-->value before adding it
local reqs = {}

--In this order: name of the parameter, label, propertyId in Wikidata, formatting function
p.conf = {
	{ 'ACM-DL', '[[ACM Digital Library|ACM DL]]', 864, p.acmLink },
	{ 'autores.uy', '[[autores.uy]]', 2558, p.autoresuyLink },
	{ 'BALaT', '[[:d:Q2876688|BALaT]]', 3293, p.balatLink },
	{ 'BIBSYS', '[[BIBSYS]]', 1015, p.bibsysLink },
	{ 'Bildindex', '[[Marburg Picture Index|Bildindex]]', 2092, p.bildLink },
	{ 'BNE', '[[Biblioteca Nacional de España|BNE]]', 950, p.bneLink },
	{ 'BNF', '[[Bibliothèque nationale de France|BNF]]', 268, p.bnfLink },
	{ 'Botanist', '[[Author citation (botany)|Botanist]]', 428, p.botanistLink },
	{ 'BPN', '[[Biografisch Portaal|BPN]]', 651, p.bpnLink },
	{ 'CINII', '[[CiNii]]', 271, p.ciniiLink },
	{ 'DBLP', '[[DBLP]]', 2456, p.dblpLink },
	{ 'GND', '[[Integrated Authority File|GND]]', 227, p.gndLink },
	{ 'HDS', '[[Historical Dictionary of Switzerland|HDS]]', 902, p.hdsLink },
	{ 'IAAF', '[[International Association of Athletics Federations|IAAF]]', 1146, p.iaafLink },
	{ 'ISNI', '[[International Standard Name Identifier|ISNI]]', 213, p.isniLink },
	{ 'Joconde', '[[Joconde|Joconde]]' , 347, p.jocondeLink },
	{ 'KULTURNAV', '[[KulturNav]]', 1248, p.kulturnavLink },
	{ 'LCCN', '[[Library of Congress Control Number|LCCN]]', 244, p.lccnLink },
	{ 'LIR', '[[Historical Dictionary of Switzerland#Lexicon_Istoric_Retic|LIR]]', 886, p.lirLink },
	{ 'Léonore', '[[Base Léonore|Léonore]]', 640, p.leonoreLink },
	{ 'MBA', '[[MusicBrainz]]', 434, p.mbLink },
	{ 'MGP', '[[Mathematics Genealogy Project|MGP]]', 549, p.mgpLink },
	{ 'NARA', '[[National Archives and Records Administration|NARA]]', 1225, p.naraLink },
	{ 'NARA-organization', '[[National Archives and Records Administration|NARA]]', 1223, p.naraorganizationLink },
	{ 'NARA-person', '[[National Archives and Records Administration|NARA]]', 1222, p.narapersonLink },
	{ 'NCL', '[[National Central Library|NCL]]', 1048, p.nclLink },
	{ 'NDL', '[[National Diet Library|NDL]]', 349, p.ndlLink },
	{ 'NKC', '[[National Library of the Czech Republic|NKC]]', 691, p.nkcLink },
	{ 'NLA', '[[National Library of Australia|NLA]]', 409, p.nlaLink },
	{ 'ORCID', '[[ORCID]]', 496, p.orcidLink },
	{ 'PIC', '[[:d:Q23892012|PIC]]', 2750, p.picLink },
	{ 'RID', '[[ResearcherID]]', 1053, p.ridLink },
	{ 'RKDartists', '[[Netherlands Institute for Art History#Online artist pages|RKD]]', 650, p.rkdartistsLink },
	{ 'RKDID', '[[:d:Q17299580|RKDimages ID]]', 350, p.rkdidLink },
	{ 'RLS', '[[Russian State Library|RLS]]', 947, p.rslLink },
	{ 'SBN', '[[Istituto Centrale per il Catalogo Unico|ICCU]]', 396, p.sbnLink },
	{ 'SELIBR', '[[LIBRIS|SELIBR]]', 906, p.selibrLink },
	{ 'SIKART', '[[SIKART]]', 781, p.sikartLink },
	{ 'SNAC-ID', '[[SNAC]]', 3430, p.snacLink },
	{ 'SUDOC', '[[Système universitaire de documentation|SUDOC]]', 269, p.sudocLink },
	{ 'TLS', '[[Theaterlexikon der Schweiz|TLS]]', 1362, p.tlsLink },
	{ 'ULAN', '[[Union List of Artist Names|ULAN]]', 245, p.ulanLink },
	{ 'USCongress', '[[Biographical Directory of the United States Congress|US Congress]]', 1157, p.uscongressLink },
	{ 'VIAF', '[[Virtual International Authority File|VIAF]]', 214, p.viafLink },
}

function p.authorityControl( frame )
	local parentArgs = frame:getParent().args
	--Create rows
	local elements = {}

	--redirect PND to GND
	if (parentArgs.GND == nil or parentArgs.GND == '') and parentArgs.PND ~= nil and parentArgs.PND ~= '' then
		parentArgs.GND = parentArgs.PND
	end

	--Wikidata fallback if requested
	local itemId = mw.wikibase.getEntityIdForCurrentPage()
	if itemId ~= nil then
		for _, params in ipairs( p.conf ) do
			if params[3] ~= 0 then
				local val = parentArgs[params[1]]
				if not val or val == '' then
					local canUseWikidata = nil
					if reqs[params[1]] ~= nil then
						canUseWikidata = p.matchesWikidataRequirements( itemId, reqs[params[1]] )
					else
						canUseWikidata = true
					end
					if canUseWikidata then
						local wikidataIds = p.getIdsFromWikidata( itemId, 'P' .. params[3] )
						if wikidataIds[1] then
							parentArgs[params[1]] = wikidataIds[1]
						end
					end
				end
			end
		end
	end

	--Worldcat
	if parentArgs['WORLDCATID'] and parentArgs['WORLDCATID'] ~= '' then
		table.insert( elements, p.createRow( 'WORLDCATID', '', parentArgs['WORLDCATID'], '[https://www.worldcat.org/identities/' .. parentArgs['WORLDCATID'] .. ' WorldCat Identities]', false ) ) --Validation?
	elseif parentArgs['VIAF'] and string.match( parentArgs['VIAF'], '^%d+$' ) then -- Hackishly copy the validation code; this should go away when we move to using P1793 and P1630
		table.insert( elements, p.createRow( 'VIAF', '', parentArgs['VIAF'], '[https://www.worldcat.org/identities/containsVIAFID/' .. parentArgs['VIAF'] .. ' WorldCat Identities]', false ) )
	elseif parentArgs['LCCN'] and parentArgs['LCCN'] ~= '' then
		local lccnParts = p.splitLccn( parentArgs['LCCN'] )
		if lccnParts and lccnParts[1] ~= 'sh' then
			table.insert( elements, p.createRow( 'LCCN', '', parentArgs['LCCN'], '[https://www.worldcat.org/identities/lccn-' .. lccnParts[1] .. lccnParts[2] .. '-' .. lccnParts[3] .. ' WorldCat Identities]', false ) )
		end
	end

	--Configured rows
	local rct = 0
	for _, params in ipairs( p.conf ) do
		local val = parentArgs[params[1]]
		if val and val ~= '' then
			table.insert( elements, p.createRow( params[1], params[2] .. ':', val, params[4]( val ), true ) )
			rct = rct + 1
		end
	end
	local Navbox = require('Module:Navbox')
	local elementscats = ''
	if rct > 13 then
		elementscats  = '[[Category:AC with ' .. rct .. ' elements]]'
	end

	if #elements ~= 0 then
		return Navbox._navbox( {
			name  = 'Authority control',
			bodyclass = 'hlist',
			group1 = '[[Help:Authority control|Authority control]]' .. elementscats,
			list1 = table.concat( elements )
			} )
	end
	
	return ""
end

return p
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