Module:Authority control

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

Parameters, Wikidata properties, and tracking categories[]

Parameter Label Wikidata property Tracking categories and page counts
Articles User pages Misc. pages Faulty IDs
AAG AAG P3372: Auckland Art Gallery artist ID 1,703 0 1 0
ACM-DL ACM DL P864: ACM Digital Library author ID 1,539 2 3 0
ADB ADB P1907: Australian Dictionary of Biography ID 6,294 0 1 3
AGSA AGSA P6804: Art Gallery of South Australia creator ID 1,938 0 1 0
autores.uy autores.uy P2558: autores.uy ID 741 0 2 0
AWR AWR P4186: Australian Women's Register ID 1,396 0 1 0
BALaT BALaT P3293: BALaT object ID 44 0 1 0
BIBSYS BIBSYS P1015: BIBSYS ID 68,850 0 8 0
Bildindex Bildindex P2092: Bildindex der Kunst und Architektur ID 56 0 1 0
BNC BNC P1890: CCAB ID 1,020 0 1 0
BNE BNE P950: Biblioteca Nacional de España ID 85,412 1 11 2
BNF BNF P268: Bibliothèque nationale de France ID 271,252 3 45 4
Botanist Botanist P428: botanist author abbreviation 5,437 0 2 0
BPN BPN P651: Biografisch Portaal van Nederland ID 6,776 0 2 1
CANTIC CANTIC P1273: CANTIC ID 28,230 0 2 0
CINII CiNii P271: CiNii author ID (books) 22,510 0 8 1
CWGC CWGC P1908: CWGC person ID 530 0 0 0
DAAO DAAO P1707: DAAO ID 899 0 1 1
DBLP DBLP P2456: DBLP author ID 6,142 4 6 2
DSI DSI P2349: Stuttgart Database of Scientific Illustrators ID 3,290 0 1 0
FNZA FNZA P6792: Find NZ Artists ID 882 0 0 0
GND GND P227: GND ID 348,280 26 346 10
HDS HDS P902: HDS ID 5,867 0 4 1
IAAF IAAF P1146: World Athletics athlete ID 18,720 0 1 0
ICCU ICCU P396: SBN author ID 14,822 0 5 1
ICIA ICIA P1736: Information Center for Israeli Art artist ID 427 0 1 0
ISNI ISNI P213: ISNI 470,968 23 127 2
Joconde Joconde P347: Joconde work ID 229 0 1 0
KULTURNAV KulturNav P1248: KulturNav-ID 4,394 0 2 2
LCCN LCCN P244: Library of Congress authority ID 554,721 25 478 4
LIR LIR P886: Lexicon istoric retic ID 72 0 2 1
LNB LNB P1368: LNB ID 17,413 0 1 143
Léonore Léonore P640: Léonore ID 5,021 0 5 1
MBA MBA P434: MusicBrainz artist ID 127,079 0 57 0
MBAREA MBAREA P982: MusicBrainz area ID 21,898 0 1 0
MBI MBI P1330: MusicBrainz instrument ID 119 0 1 0
MBL MBL P966: MusicBrainz label ID 738 0 1 0
MBP MBP P1004: MusicBrainz place ID 1,342 0 1 0
MBRG MBRG P436: MusicBrainz release group ID 71,200 0 1 0
MBS MBS P1407: MusicBrainz series ID 94 0 1 0
MBW MBW work P435: MusicBrainz work ID 13,275 0 1 0
MGP MGP P549: Mathematics Genealogy Project ID 13,133 0 3 0
NARA NARA P1225: U.S. National Archives Identifier 17,612 0 1 0
NCL NBL P1048: NCL ID 528 0 2 1
NDL NDL P349: National Diet Library ID 53,143 0 25 2
NGV NGV P2041: National Gallery of Victoria artist ID 2,759 0 1 0
NKC NKC P691: NKCR AUT ID 153,571 0 14 0
NLA NLA P409: Libraries Australia ID 36,121 1 8 0
NLG NLG P3348: National Library of Greece ID 13,022 0 1 0
NLI NLI P949: National Library of Israel ID 46,817 0 2 0
NLK NLK P5034: National Library of Korea ID 30,643 0 3 1
NLP NLP P1695: NLP ID (unique) 29,746 0 2 1
NLR NLR P1003: National Library of Romania ID 136 0 1 3
NSK NSK P1375: NSK ID 8,207 0 1 0
NTA NTA P1006: Nationale Thesaurus voor Auteurs ID 215,605 0 13 0
ORCID ORCID P496: ORCID iD 9,557 417 59 1
PIC PIC P2750: Photographers' Identities Catalog ID 9,784 0 2 0
PLWABN PLWABN P7293: PLWABN ID 93,305 0 3 0
RID ResearcherID P1053: ResearcherID 1,636 23 11 4
RERO RERO P3065: RERO ID 15,048 0 1 9
RKDartists RKD P650: RKDartists ID 33,137 0 6 0
RKDID RKDimages ID P350: RKDimages ID 682 0 1 0
RSL RSL P947: RSL ID (person) 810 0 5 0
SELIBR SELIBR P906: SELIBR ID 37,936 0 19 3
SIKART SIKART P781: SIKART ID 1,083 0 2 0
SNAC-ID SNAC P3430: SNAC Ark ID 127,085 0 2 0
SUDOC SUDOC P269: IdRef ID 223,647 7 40 1
S2AuthorId S2AuthorId P4012: Semantic Scholar author ID 1,205 3 3 0
TA98 TA98 P1323: Terminologia Anatomica 98 ID 2,866 0 1 0
TDVİA TDVİA P7314: TDV İslam Ansiklopedisi ID 1,409 0 0 0
TE TE P1693: Terminologia Embryologica 134 0 1 0
TePapa TePapa P3544: Te Papa agent ID 3,101 0 1 0
TH TH P1694: Terminologia Histologica 301 0 1 0
TLS TLS P1362: Theaterlexikon der Schweiz ID 545 0 2 1
Trove Trove P1315: NLA Trove ID 59,561 2 2 4
UKPARL UKPARL P6213: UK Parliament identifier 913 0 1 3
ULAN ULAN P245: Union List of Artist Names ID 43,521 0 10 0
USCongress US Congress P1157: US Congress Bio ID 12,795 0 2 0
VcBA VcBA P8034: Vatican Library VcBA ID 39,136 0 1 1
VIAF VIAF P214: VIAF ID 728,810 98 1,074 4
WORLDCATID WorldCat Identities P7859: WorldCat Identities ID 642,372 0 13 0

Additional tracking categories[]

This module also implements the following hidden tracking categories:

Number of identifiers[]

See also[]

require('Module:No globals')

local p = {}
local title = mw.title.getCurrentTitle()
local namespace = title.namespace
local testcases = (string.sub(title.subpageText,1,9) == 'testcases')

--[[==========================================================================]]
--[[                            Category functions                            ]]
--[[==========================================================================]]

function p.getCatForId( id )
	local catName = ''
	if namespace == 0 then
		catName = 'Wikipedia articles with '..id..' identifiers'
	elseif namespace == 2 and not title.isSubpage then
		catName = 'User pages with '..id..' identifiers'
	else
		catName = 'Miscellaneous pages with '..id..' identifiers'
	end
	return '[[Category:'..catName..']]'..p.redCatLink(catName)
end

function p.redCatLink( catName ) --catName == 'Blah' (not 'Category:Blah', not '[[Category:Blah]]')
	if catName and catName ~= '' and
	   testcases == false and
	   mw.title.new(catName, 14).exists == false
	then
		return '[[Category:Pages with red-linked authority control categories]]'
	end
	return ''
end

function p.createRow( id, label, rawValue, link, withUid, specialCat )
	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

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

--[[==========================================================================]]
--[[                      Property formatting functions                       ]]
--[[==========================================================================]]

-- If a link has a suitable entry in the global inter-wiki prefix table at [[:m:Interwiki_map]], please consider routing through this prefix rather than as external link URL. This will ease future maintenance as necessary updates to the link can be centrally carried out there rather than by updating this module. The "external link" icon would disappear for such entries.

function p.aagLink( id )
	--P3372's format regex: \d+ (e.g. 1)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[https://www.aucklandartgallery.com/explore-art-and-ideas/artist/'..id..'/ '..id..']'..p.getCatForId( 'AAG' )
end

function p.acmLink( id )
	--P864's format regex: \d{11} (e.g. 12345678901)
	if not id:match( '^%d%d%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[https://dl.acm.org/profile/'..id..' '..id..']'..p.getCatForId( 'ACM-DL' )
end

function p.adbLink( id )
	--P1907's format regex: [a-z][-a-z]+-([1-2]\d|[1-9])\d{0,3} (e.g. barton-sir-edmund-toby-71)
	if not id:match( '^[a-z][-a-z]+-[1-2]%d%d?%d?%d?$' ) and
	   not id:match( '^[a-z][-a-z]+-[1-9]%d?%d?%d?$' ) then
		return false
	end
	return '[http://adb.anu.edu.au/biography/'..id..' '..id..']'..p.getCatForId( 'ADB' )
end

function p.agsaLink( id )
	--P6804's format regex: [1-9]\d* (e.g. 3625)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[https://www.agsa.sa.gov.au/collection-publications/collection/creators/_/'..id..'/ '..id..']'..p.getCatForId( 'AGSA' )
end

function p.autoresuyLink( id )
	--P2558's format regex: [1-9]\d{0,4} (e.g. 12345)
	if not id:match( '^[1-9]%d?%d?%d?%d?$' ) then
		return false
	end
	return '[https://autores.uy/autor/'..id..' '..id..']'..p.getCatForId( 'autores.uy' )
end

function p.awrLink( id )
	--P4186's format regex: (([A-Z]{3}\d{4})|([A-Z]{2}\d{5}))[a-z] (e.g. PR00768b)
	if not id:match( '^[A-Z][A-Z][A-Z]%d%d%d%d[a-z]$' ) and
	   not id:match( '^[A-Z][A-Z]%d%d%d%d%d[a-z]$' ) then
		return false
	end
	return '[http://www.womenaustralia.info/biogs/'..id..'.htm '..id..']'..p.getCatForId( 'AWR' )
end

function p.balatLink( id )
	--P3293's format regex: \d+ (e.g. 1)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[http://balat.kikirpa.be/object/104257'..id..' '..id..']'..p.getCatForId( 'BALaT' ) --no https as of 9/2019
end

function p.bibsysLink( id )
	--P1015's format regex: [1-9]\d* or [1-9](\d{0,8}|\d{12}) (e.g. 1234567890123)
	--TODO: follow up @ [[d:Property talk:P1015#Discrepancy between the 2 regex constraints]] or escalate/investigate
	if not id:match( '^[1-9]%d?%d?%d?%d?%d?%d?%d?%d?$' ) and
	   not id:match( '^[1-9]%d%d%d%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[https://authority.bibsys.no/authority/rest/authorities/html/'..id..' '..id..']'..p.getCatForId( 'BIBSYS' )
end

function p.bildLink( id )
	--P2092's format regex: \d+ (e.g. 1)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[https://www.bildindex.de/document/obj'..id..' '..id..']'..p.getCatForId( 'Bildindex' )
end

function p.bncLink( id )
	--P1890's format regex: \d{9} (e.g. 123456789)
	if not id:match( '^%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://www.bncatalogo.cl/F?func=direct&local_base=red10&doc_number='..id..' '..id..']'..p.getCatForId( 'BNC' )
end

function p.bneLink( id )
	--P950's format regex: (XX|FF|a)\d{4,7}|(bima|bimo|bica|bis[eo]|bivi|Mise|Mimo|Mima)\d{10} (e.g. XX1234567)
	if not id:match( '^[XF][XF]%d%d%d%d%d?%d?%d?$' ) and
	   not id:match( '^a%d%d%d%d%d?%d?%d?$' ) and
	   not id:match( '^bi[mcsv][aoei]%d%d%d%d%d%d%d%d%d%d$' ) and
	   not id:match( '^Mi[sm][eoa]%d%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?action=display&authority_id='..id..' '..id..']'..p.getCatForId( 'BNE' ) --no https as of 9/2019
end

function p.bnfLink( id )
	--P268's format regex: \d{8}[0-9bcdfghjkmnpqrstvwxz] (e.g. 123456789)
	if not id:match( '^c?b?%d%d%d%d%d%d%d%d[0-9bcdfghjkmnpqrstvwxz]$' ) then
		return false
	end
	--Add cb prefix if it has been removed
	if not id:match( '^cb.+$' ) then
		id = 'cb'..id
	end
	return '[https://catalogue.bnf.fr/ark:/12148/'..id..' '..id..'] [https://data.bnf.fr/ark:/12148/'..id..' (data)]'..p.getCatForId( 'BNF' )
end

function p.botanistLink( id )
	--P428's format regex: ('t )?(d')?(de )?(la )?(van (der )?)?(Ma?c)?(De)?(Di)?\p{Lu}?C?['\p{Ll}]*([-'. ]*(van )?(y )?(d[ae][nr]?[- ])?(Ma?c)?[\p{Lu}bht]?C?['\p{Ll}]*)*\.? ?f?\.? (e.g. L.)
	--not easily/meaningfully implementable in Lua's regex since "(this)?" is not allowed...
	if not mw.ustring.match( id, "^[%u%l%d%. '-]+$" ) then --better than nothing
		return false
	end
	local id2 = id:gsub(' +', '%%20')
	return '[https://www.ipni.org/ipni/advAuthorSearch.do?find_abbreviation='..id2..' '..id..']'..p.getCatForId( 'Botanist' )
end

function p.bpnLink( id )
	--P651's format regex: \d{6,8} (e.g. 00123456)
	if not id:match( '^%d%d%d%d%d%d%d%d$' ) and --original format regex, changed 8/2019 to
	   not id:match( '^0?%d%d%d%d%d%d%d$' ) and --allow 1-2 leading 0s, allowed by the website
	   not id:match( '^0?0?%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://www.biografischportaal.nl/en/persoon/'..id..' '..id..']'..p.getCatForId( 'BPN' ) --no https as of 9/2019
end

function p.canticLink( id )
	--P1273's format regex: a\d{7}[0-9x] (e.g. a10640745)
	if not id:match( '^a%d%d%d%d%d%d%d[%dx]$' ) then
		return false
	end
	return '[http://cantic.bnc.cat/registres/CUCId/'..id..' '..id..']'..p.getCatForId( 'CANTIC' ) --no https as of 10/2019
end

function p.ciniiLink( id )
	--P271's format regex: DA\d{7}[\dX] (e.g. DA12345678)
	if not id:match( '^DA%d%d%d%d%d%d%d[%dX]$' ) then
		return false
	end
	return '[https://ci.nii.ac.jp/author/'..id..'?l=en '..id..']'..p.getCatForId( 'CINII' )
end

function p.cwgcLink( id )
	--P1908's format regex: [1-9]\d* (e.g. 75228351)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[https://www.cwgc.org/find-war-dead/casualty/'..id..'/ '..id..']'..p.getCatForId( 'CWGC' )
end

function p.daaoLink( id )
	--P1707's format regex: [a-z\-]+\d* (e.g. rolf-harris)
	if not id:match( '^[a-z%-]+%d*$' ) then
		return false
	end
	return '[https://www.daao.org.au/bio/'..id..' '..id..']'..p.getCatForId( 'DAAO' )
end

function p.dblpLink( id )
	--P2456's format regex: \d{2,3} /\d+(-\d+)?|[a-z] /[a-zA-Z][0-9A-Za-z]*(-\d+)? (e.g. 123/123)
	if not id:match( '^%d%d%d?/%d+$' ) and
	   not id:match( '^%d%d%d?/%d+%-%d+$' ) and
	   not id:match( '^[a-z]/[a-zA-Z][0-9A-Za-z]*$' ) and
	   not id:match( '^[a-z]/[a-zA-Z][0-9A-Za-z]*%-%d+$' ) then
		return false
	end
	return '[https://dblp.org/pid/'..id..' '..id..']'..p.getCatForId( 'DBLP' )
end

function p.dsiLink( id )
	--P2349's format regex: [1-9]\d* (e.g. 1538)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[http://www.uni-stuttgart.de/hi/gnt/dsi2/index.php?table_name=dsi&function=details&where_field=id&where_value='..id..' '..id..']'..p.getCatForId( 'DSI' )
end

function p.fnzaLink( id )
	--P6792's format regex: [1-9]\d* (e.g. 9785)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[https://findnzartists.org.nz/artist/'..id..'/ '..id..']'..p.getCatForId( 'FNZA' )
end

function p.gndLink( id )
	--P227's format regex: 1[012]?\d{7}[0-9X]|[47]\d{6}-\d|[1-9]\d{0,7}-[0-9X]|3\d{7}[0-9X] (e.g. 4079154-3)
	if not id:match( '^1[012]?%d%d%d%d%d%d%d[0-9X]$' ) and
	   not id:match( '^[47]%d%d%d%d%d%d%-%d$' ) and
	   not id:match( '^[1-9]%d?%d?%d?%d?%d?%d?%d?%-[0-9X]$' ) and
	   not id:match( '^3%d%d%d%d%d%d%d[0-9X]$' ) then
		return false
	end
	return '[https://d-nb.info/gnd/'..id..' '..id..']'..p.getCatForId( 'GND' )
end

function p.hdsLink( id )
	--P902's format regex: \d{6} (e.g. 050123)
	if not id:match( '^%d%d%d%d%d%d$' ) then
		return false
	end
	return '[https://hls-dhs-dss.ch/fr/articles/'..id..' '..id..']'..p.getCatForId( 'HDS' )
end

function p.iaafLink( id )
	--P1146's format regex: [0-9][0-9]* (e.g. 012)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[https://www.iaaf.org/athletes/_/'..id..' '..id..']'..p.getCatForId( 'IAAF' )
end

function p.iciaLink( id )
	--P1736's format regex: \d+ (e.g. 1)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[https://www.imj.org.il/artcenter/newsite/en/?artist='..id..' '..id..']'..p.getCatForId( 'ICIA' )
end

function p.isniLink( id )
	id = p.validateIsni( id ) --e.g. 0000-0000-6653-4145
	if not id then
		return false
	end
	return '[https://isni.org/isni/'..id..' '..id:sub( 1, 4 )..' '..id:sub( 5, 8 )..' '..id:sub( 9, 12 )..' '..id:sub( 13, 16 )..']'..p.getCatForId( 'ISNI' ) --no https as of 9/2019
end

function p.jocondeLink( id )
	--P347's format regex: [\-0-9A-Za-z]{11} (e.g. 12345678901)
	local regex = '^'..string.rep('[%-0-9A-Za-z]', 11)..'$'
	if not id:match( regex ) then
		return false
	end
	return '[https://www.pop.culture.gouv.fr/notice/joconde/'..id..' '..id..']'..p.getCatForId( 'Joconde' )
end

function p.kulturnavLink( id )
	--P1248's format regex: [0-9a-f]{8}\-[0-9a-f]{4}\-[0-9a-f]{4}\-[0-9a-f]{4}\-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[http://kulturnav.org/'..id..' '..id..']'..p.getCatForId( 'KULTURNAV' ) --no https as of 9/2019
end

function p.lccnLink( id )
	local parts = p.splitLccn( id ) --e.g. n78039510
	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 '[https://id.loc.gov/authorities/'..lccnType..'/'..id..' '..id..']'..p.getCatForId( 'LCCN' )
end

function p.lirLink( id )
	--P886's format regex: \d+ (e.g. 1)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[http://www.e-lir.ch/e-LIR___Lexicon.'..id..'.450.0.html '..id..']'..p.getCatForId( 'LIR' ) --no https as of 9/2019
end

function p.lnbLink( id )
	--P1368's format regex: \d{9} (e.g. 123456789)
	if not id:match( '^%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[https://kopkatalogs.lv/F?func=direct&local_base=lnc10&doc_number='..id..'&P_CON_LNG=ENG '..id..']'..p.getCatForId( 'LNB' )
end

function p.leonoreLink( id )
	--P640's format regex: LH/\d{1,4}/\d{1,3}|19800035/\d{1,4}/\d{1,5}(Bis)?|C/0/\d{1,2} (e.g. LH/2064/18)
	if not id:match( '^LH/%d%d?%d?%d?/%d%d?%d?$' ) and             --IDs from       LH/1/1 to         LH/2794/54 (legionaries)
	   not id:match( '^19800035/%d%d?%d?%d?/%d%d?%d?%d?%d?$' ) and --IDs from 19800035/1/1 to 19800035/385/51670 (legionnaires who died 1954-1977 & some who died < 1954)
	   not id:match( '^C/0/%d%d?$' ) then                          --IDs from        C/0/1 to             C/0/84 (84 famous legionaries)
		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' ) --no https as of 9/2019
end

function p.mbaLink( id )
	--P434's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/artist/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz' ) --special category name
end

function p.mbareaLink( id )
	--P982's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/area/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz area' ) --special category name
end

function p.mbiLink( id )
	--P1330's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/instrument/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz instrument' ) --special category name
end

function p.mblLink( id )
	--P966's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/label/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz label' ) --special category name
end

function p.mbpLink( id )
	--P1004's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/place/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz place' ) --special category name
end

function p.mbrgLink( id )
	--P436's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/release-group/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz release group' ) --special category name
end

function p.mbsLink( id )
	--P1407's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/series/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz series' ) --special category name
end

function p.mbwLink( id )
	--P435's format regex: [0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} (e.g. 12345678-1234-1234-1234-1234567890AB)
	if not id:match( '^%x%x%x%x%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%-%x%x%x%x%x%x%x%x%x%x%x%x$' ) then
		return false
	end
	return '[https://musicbrainz.org/work/'..id..' '..id..']'..p.getCatForId( 'MusicBrainz work' ) --special category name
end

function p.mgpLink( id )
	--P549's format regex: \d{1,6} (e.g. 123456)
	if not id:match( '^%d%d?%d?%d?%d?%d?$' ) then
		return false
	end
	return '[https://genealogy.math.ndsu.nodak.edu/id.php?id='..id..' '..id..']'..p.getCatForId( 'MGP' )
end

function p.naraLink( id )
	--P1225's format regex: ^([1-9]\d{0,8})$ (e.g. 123456789)
	if not id:match( '^[1-9]%d?%d?%d?%d?%d?%d?%d?%d?$' ) then
		return false
	end
	return '[https://catalog.archives.gov/id/'..id..' '..id..']'..p.getCatForId( 'NARA' )
end

function p.nclLink( id )
	--P1048's format regex: \d+ (e.g. 1081436)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[http://aleweb.ncl.edu.tw/F/?func=accref&acc_sequence='..id..'&CON_LNG=ENG '..id..']'..p.getCatForId( 'NCL' ) --no https as of 9/2019
end

function p.ndlLink( id )
	--P349's format regex: 0?\d{8} (e.g. 012345678)
	if not id:match( '^0?%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[https://id.ndl.go.jp/auth/ndlna/'..id..' '..id..']'..p.getCatForId( 'NDL' )
end

function p.ngvLink( id )
	--P2041's format regex: \d+ (e.g. 12354)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[https://www.ngv.vic.gov.au/explore/collection/artist/'..id..'/ '..id..']'..p.getCatForId( 'NGV' )
end

function p.nkcLink( id )
	--P691's format regex: [a-z]{2,4}[0-9]{2,14} (e.g. abcd12345678901234)
	if not id:match( '^[a-z][a-z][a-z]?[a-z]?%d%d%d?%d?%d?%d?%d?%d?%d?%d?%d?%d?%d?%d?$' ) then
		return false
	end
	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.nlaLink( id )
	--P409's format regex: [1-9][0-9]{0,11} (e.g. 123456789012)
	if not id:match( '^[1-9]%d?%d?%d?%d?%d?%d?%d?%d?%d?%d?%d?$' ) then
		return false
	end
	return '[https://nla.gov.au/anbd.aut-an'..id..' '..id..']'..p.getCatForId( 'NLA' )
end

function p.nlgLink( id )
	--P3348's format regex: [1-9]\d* (e.g. 1)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[https://data.nlg.gr/resource/authority/record'..id..' '..id..']'..p.getCatForId( 'NLG' )
end

function p.nliLink( id )
	--P949's format regex: \d{9} (e.g. 123456789)
	if not id:match( '^%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://uli.nli.org.il/F/?func=direct&doc_number='..id..'&local_base=nlx10'..' '..id..']'..p.getCatForId( 'NLI' )
end

function p.nlkLink( id )
	--P5034's format regex: KA.(19|20).{7} (e.g. KAC201501465)
	if not id:match( '^KA.19.......$' ) and
	   not id:match( '^KA.20.......$' ) then
		return false
	end
	return '[https://nl.go.kr/authorities/resource/'..id..' '..id..']'..p.getCatForId( 'NLK' )
end

function p.nlpLink( id )
	--P1695's format regex: 9810[0-9]\d* or A[0-9]{7}[0-9X] (e.g. 9810123456789012345 or A10414836)
	if not id:match( '^9810%d+$' ) and
	   not id:match( '^A%d%d%d%d%d%d%d[%dX]$' ) then
		return false
	end
	return '[https://tools.wmflabs.org/wikidata-externalid-url?p=1695&id='..id..' '..id..']'..p.getCatForId( 'NLP' )
end

function p.nlrLink( id )
	--P1003's format regex: \d{9} (e.g. 123456789)
	if not id:match( '^%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://aleph.bibnat.ro:8991/F/?func=direct&local_base=NLR10&doc_number='..id..']'..p.getCatForId( 'NLR' )
end

function p.nskLink( id )
	--P1375's format regex: \d{9} (e.g. 123456789)
	if not id:match( '^%d%d%d%d%d%d%d%d%d$' ) then
		return false
	end
	return '[http://katalog.nsk.hr/F/?func=direct&doc_number='..id..'&local_base=nsk10 '..id..']'..p.getCatForId( 'NSK' ) --no https as of 9/2019
end

function p.ntaLink( id )
	--P1006's format regex: \d{8}[\dX] (e.g. 12345678X)
	if not id:match( '^%d%d%d%d%d%d%d%d[%dX]$' ) then
		return false
	end
	return '[http://data.bibliotheken.nl/id/thes/p'..id..' '..id..']'..p.getCatForId( 'NTA' )
end

function p.orcidLink( id )
	id = p.validateIsni( id ) --e.g. 0000-0002-7398-5483
	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.plwabnLink( id )
	--P7293's format regex: 981[0-9]{8}05606 (e.g. 9810696457305606)
	if not id:match( '^981%d%d%d%d%d%d%d%d05606*$' ) then
		return false
	end
	return '[http://mak.bn.org.pl/cgi-bin/KHW/makwww.exe?BM=1&NU=1&IM=4&WI='..id..' '..id..']'..p.getCatForId( 'PLWABN' )
end

function p.picLink( id )
	--P2750's format regex: [1-9]\d* (e.g. 1)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[https://pic.nypl.org/constituents/'..id..' '..id..']'..p.getCatForId( 'PIC' )
end

function p.ridLink( id )
	--P1053's format regex: [A-Z]{1,3}-\d{4}-20[0-2]\d   (e.g. AAS-5150-2020)
	if not id:match( '^[A-Z][A-Z]?[A-Z]?%-%d%d%d%d%-20[0-2]%d$' ) then
		return false
	end
	return '[https://www.researcherid.com/rid/'..id..' '..id..']'..p.getCatForId( 'RID' )
end

function p.reroLink( id )
	--P3065's format regex: 0[1-2]-[A-Z0-9]{1,10} (e.g. 02-A012345678)
	if not id:match( '^0[1-2]%-[A-Z%d][A-Z%d]?[A-Z%d]?[A-Z%d]?[A-Z%d]?[A-Z%d]?[A-Z%d]?[A-Z%d]?[A-Z%d]?[A-Z%d]?$' ) then
		return false
	end
	return '[http://data.rero.ch/'..id..' '..id..']'..p.getCatForId( 'RERO' )
end

function p.rkdartistsLink( id )
	--P650's format regex: [1-9]\d{0,5} (e.g. 123456)
	if not id:match( '^[1-9]%d?%d?%d?%d?%d?$' ) then
		return false
	end
	return '[https://rkd.nl/en/explore/artists/'..id..' '..id..']'..p.getCatForId( 'RKDartists' )
end

function p.rkdidLink( id )
	--P350's format regex: [1-9]\d{0,5} (e.g. 123456)
	if not id:match( '^[1-9]%d?%d?%d?%d?%d?$' ) then
		return false
	end
	return '[https://rkd.nl/nl/explore/images/'..id..' '..id..']'..p.getCatForId( 'RKDID' )
end

function p.rslLink( id )
	--P947's format regex: \d{1,9} (e.g. 123456789)
	if not id:match( '^%d%d?%d?%d?%d?%d?%d?%d?%d?$' ) then
		return false
	end
	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( 'RSL' ) --no https as of 9/2019
end

function p.iccuLink( id )
	--P396's format regex: IT\\ICCU\\(\d{10}|\D\D[\D\d]\D\\\d{6}) (e.g. IT\ICCU\CFIV\000163)
	if not id:match( '^IT\\ICCU\\%d%d%d%d%d%d%d%d%d%d$' ) and
	   not id:match( '^IT\\ICCU\\%u%u[%u%d]%u\\%d%d%d%d%d%d$' ) then --legacy: %u used here instead of %D (but the faulty ID cat is empty, out of ~12k uses)
		return false
	end
	return '[https://opac.sbn.it/opacsbn/opac/iccu/scheda_authority.jsp?bid='..id..' '..id..']'..p.getCatForId( 'ICCU' ) end

function p.selibrLink( id )
	--P906's format regex: [1-9]\d{4,5} (e.g. 123456)
	if not id:match( '^[1-9]%d%d%d%d%d?$' ) then
		return false
	end
	return '[https://libris.kb.se/auth/'..id..' '..id..']'..p.getCatForId( 'SELIBR' )
end

function p.sikartLink( id )
	--P781's format regex: \d{7,9} (e.g. 123456789)
	if not id:match( '^%d%d%d%d%d%d%d%d?%d?$' ) then
		return false
	end
	return '[http://www.sikart.ch/KuenstlerInnen.aspx?id='..id..'&lng=en '..id..']'..p.getCatForId( 'SIKART' ) --no https as of 9/2019
end

function p.snacLink( id )
	--P3430's format regex: \d*[A-Za-z][0-9A-Za-z]* (e.g. A)
	if not id:match( '^%d*[A-Za-z][0-9A-Za-z]*$' ) then
		return false
	end
	return '[https://snaccooperative.org/ark:/99166/'..id..' '..id..']'..p.getCatForId( 'SNAC-ID' )
end

function p.sudocLink( id )
	--P269's format regex: (\d{8}[\dX]|) (e.g. 026927608)
	if not id:match( '^%d%d%d%d%d%d%d%d[%dxX]$' ) then --legacy: allow lowercase 'x'
		return false
	end
	return '[https://www.idref.fr/'..id..' '..id..']'..p.getCatForId( 'SUDOC' )
end

function p.s2authoridLink( id )
	--P4012's format regex: [1-9]\d* (e.g. 1796130)
	if not id:match( '^[1-9]%d*$' ) then
		return false
	end
	return '[https://www.semanticscholar.org/author/'..id..' '..id..']'..p.getCatForId( 'Semantic Scholar author' ) --special category name
end

function p.ta98Link( id )
	--P1323's format regex: A\d{2}\.\d\.\d{2}\.\d{3}[FM]? (e.g. A12.3.45.678)
	if not id:match( '^A%d%d%.%d%.%d%d%.%d%d%d[FM]?$' ) then
		return false
	end
	return '[http://tools.wmflabs.org/wikidata-externalid-url/?p=1323&url_prefix=https:%2F%2Fwww.unifr.ch%2Fifaa%2FPublic%2FEntryPage%2FTA98%20Tree%2FEntity%20TA98%20EN%2F&url_suffix=%20Entity%20TA98%20EN.htm&id='..id..' '..id..']'..p.getCatForId( 'TA98' )
end

function p.tdviaLink( id )
	--P7314's format regex: [a-z/-]+] (e.g. barkan-omer-lutfi)
	if not id:match( '^[a-z/-]+$' ) then
		return false
	end
	return '[https://islamansiklopedisi.org.tr/'..id..' '..id..']'..p.getCatForId( 'TDVİA' )
end

function p.teLink( id )
	--P1693's format regex: E[1-8]\.\d{1,2}\.\d{1,2}\.\d{1,2}\.\d{1}\.\d{1}\.\d{1,3} (e.g. E1.23.45.67.8.9.0)
	local e1, e2 = id:match( '^E([1-8])%.(%d%d?)%.%d%d?%.%d%d?%.%d%.%d%.%d%d?%d?$' )
	if not e1 then
		return false
	end
	local TEnum = 'TEe0'..e1 --no formatter URL in WD, probably due to this complexity
	if e1 == '5' or e1 == '7' then
		if #e2 == 1 then e2 = '0'..e2 end
		TEnum = TEnum..e2
	end
	return '[http://www.unifr.ch/ifaa/Public/EntryPage/ViewTE/'..TEnum..'.html '..id..']'..p.getCatForId( 'TE' )
end

function p.tepapaLink( id )
	--P3544's format regex: \d+ (e.g. 1)
	if not id:match( '^%d+$' ) then
		return false
	end
	return '[https://collections.tepapa.govt.nz/agent/'..id..' '..id..']'..p.getCatForId( 'TePapa' )
end

function p.thLink( id )
	--P1694's format regex: H\d\.\d{2}\.\d{2}\.\d\.\d{5} (e.g. H1.23.45.6.78901)
	local h1, h2 = id:match( '^H(%d)%.(%d%d)%.%d%d%.%d%.%d%d%d%d%d$' )
	if not h1 then
		return false
	end
	local THnum = 'THh'..h1..h2 --no formatter URL in WD, probably due to this complexity
	return '[http://www.unifr.ch/ifaa/Public/EntryPage/ViewTH/'..THnum..'.html '..id..']'..p.getCatForId( 'TH' )
end

function p.tlsLink( id )
	local id2 = id:gsub(' +', '_')
	--P1362's format regex: \p{Lu}[\p{L}\d_',\.\-\(\)\*/–]{3,59} (e.g. Abcd)
	local class = "[%a%d_',%.%-%(%)%*/–]"
	local regex = "^%u"..string.rep(class, 3)..string.rep(class.."?", 56).."$"
	if not mw.ustring.match( id2, regex ) then
		return false
	end
	return '[http://tls.theaterwissenschaft.ch/wiki/'..id2..' '..id..']'..p.getCatForId( 'TLS' ) --no https as of 9/2019
end

function p.troveLink( id )
	--P1315's format regex: [1-9]\d{5,7} (e.g. 12345678)
	if not id:match( '^[1-9]%d%d%d%d%d%d?%d?$' ) then
		return false
	end
	return '[https://trove.nla.gov.au/people/'..id..' '..id..']'..p.getCatForId( 'Trove' )
end

function p.ukparlLink( id )
	--P6213's format regex: [a-zA-Z\d]{8} (e.g. AQUupyiR)
	if not id:match( '^[a-zA-Z%d][a-zA-Z%d][a-zA-Z%d][a-zA-Z%d][a-zA-Z%d][a-zA-Z%d][a-zA-Z%d][a-zA-Z%d]$' ) then
		return false
	end
	return '[https://id.parliament.uk/'..id..' '..id..']'..p.getCatForId( 'UKPARL' )
end

function p.ulanLink( id )
	--P245's format regex: 500\d{6} (e.g. 500123456)
	if not id:match( '^500%d%d%d%d%d%d$' ) then
		return false
	end
	return '[https://www.getty.edu/vow/ULANFullDisplay?find=&role=&nation=&subjectid='..id..' '..id..']'..p.getCatForId( 'ULAN' )
end

function p.uscongressLink( id )
	--P1157's format regex: [A-Z]00[01]\d{3} (e.g. A000123)
	if not id:match( '^[A-Z]00[01]%d%d%d$' ) then
		return false
	end
	return '[http://bioguide.congress.gov/scripts/biodisplay.pl?index='..id..' '..id..']'..p.getCatForId( 'USCongress' ) --no https as of 9/2019
end

function p.vcbaLink( id )
	--P8034's format regex: \d{3}\/[1-9]\d{0,5} (e.g. 494/9793)
	if not id:match( '^%d%d%d\/[1-9]%d?%d?%d?%d?%d?$' ) then
		return false
	end
	local id2 = id:gsub('\/', '_')
	return '[https://opac.vatlib.it/auth/detail/'..id2..' '..id..']'..p.getCatForId( 'VcBA' )
end

function p.viafLink( id )
	--P214's format regex: [1-9]\d(\d{0,7}|\d{17,20}) (e.g. 123456789, 1234567890123456789012)
	if not id:match( '^[1-9]%d%d?%d?%d?%d?%d?%d?%d?$' ) and
	   not id:match( '^[1-9]%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d?%d?%d?$' ) then
		return false
	end
	-- If the "VIAF" entry at [[:m:Interwiki map]] would resolve to "https://viaf.org/viaf/$1" (rather than "http://viaf.org/viaf/$1", as it currently still does), the code below could change from '[https://viaf.org/viaf/'..id..' '..id..']' to '[[:VIAF:'..id..'|'..id..']]'.
	return '[https://viaf.org/viaf/'..id..' '..id..']'..p.getCatForId( 'VIAF' )
end

--[[=========================== Helper functions =============================]]

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

--Returns the ISNI check digit isni must be a string where the 15 first elements are digits, e.g. 0000000066534145
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 )
	--P213 (ISNI) format regex: [0-9]{4} [0-9]{4} [0-9]{4} [0-9]{3}[0-9X] (e.g. 0000-0000-6653-4145)
	--P496 (ORCID) format regex: 0000-000(1-[5-9]|2-[0-9]|3-[0-4])\d{3}-\d{3}[\dX] (e.g. 0000-0002-7398-5483)
	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.splitLccn( id )
	--P244's format regex: (n|nb|nr|no|ns|sh)([4-9][0-9]|00|20[0-1][0-9])[0-9]{6} (e.g. n78039510)
	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

--[[==========================================================================]]
--[[                    Wikidata & documentation functions                    ]]
--[[==========================================================================]]

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 then
			for _, statement in ipairs( statements ) do
				if statement.mainsnak.datavalue then
					if statement.mainsnak.datavalue.value['numeric-id'] == qid then
						return true
	end	end	end	end	end
	return false
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'..
					  '! [[:Category:Wikipedia articles with authority control information|'..       'Articles]]\n'..
					  '! [[:Category:User pages with authority control information|'..               'User pages]]\n'..
					  '! [[:Category:Miscellaneous pages with authority control information|'..      'Misc. pages]]\n'..
					  '! [[:Category:Wikipedia articles with faulty authority control information|'..'Faulty IDs]]\n'..
					  '|-\n'
	
	local lang = mw.getContentLanguage()
	for _, conf in pairs( p.conf ) do
		local param, link, pid = conf[1], conf[2], conf[3]
		local category = conf.category or param
		local args = { id = 'f', pid }
		local wpl = frame:expandTemplate{ title = 'Wikidata property link', args = args }
		--cats
		local articleCat = 'Wikipedia articles with '..category..' identifiers'
		local userCat =    'User pages with '..category..' identifiers'
		local miscCat =    'Miscellaneous pages with '..category..' identifiers'
		local faultyCat =  'Wikipedia articles with faulty '..category..' identifiers'
		--counts
		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') )
		--concat
		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

--[[==========================================================================]]
--[[                              Configuration                               ]]
--[[==========================================================================]]

-- If a specific "(identifier) redirect" exists for an identifier, please route through this particular redirect rather than linking directly to the target page. This reduces clutter in "What links here" and improves reverse lookup of articles where a manifestation of this particular identifier is used.

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

-- Parameter format: { 'parameter name', 'label', propertyId # in Wikidata, formatting/validation function }
p.conf = {
	{ 'AAG', '[[AAG (identifier)|AAG]]', 3372, p.aagLink },
	{ 'ACM-DL', '[[ACM DL (identifier)|ACM DL]]', 864, p.acmLink },
	{ 'ADB', '[[ADB (identifier)|ADB]]', 1907, p.adbLink },
	{ 'AGSA', '[[AGSA (identifier)|AGSA]]', 6804, p.agsaLink },
	{ 'autores.uy', '[[autores.uy (identifier)|autores.uy]]', 2558, p.autoresuyLink },
	{ 'AWR', '[[AWR (identifier)|AWR]]', 4186, p.awrLink },
	{ 'BALaT', '[[BALaT (identifier)|BALaT]]', 3293, p.balatLink },
	{ 'BIBSYS', '[[BIBSYS (identifier)|BIBSYS]]', 1015, p.bibsysLink },
	{ 'Bildindex', '[[Bildindex (identifier)|Bildindex]]', 2092, p.bildLink },
	{ 'BNC', '[[BNC (identifier)|BNC]]', 1890, p.bncLink },
	{ 'BNE', '[[BNE (identifier)|BNE]]', 950, p.bneLink },
	{ 'BNF', '[[BNF (identifier)|BNF]]', 268, p.bnfLink },
	{ 'Botanist', '[[Botanist (identifier)|Botanist]]', 428, p.botanistLink },
	{ 'BPN', '[[BPN (identifier)|BPN]]', 651, p.bpnLink },
	{ 'CANTIC', '[[CANTIC (identifier)|CANTIC]]', 1273, p.canticLink },
	{ 'CINII', '[[CiNii (identifier)|CiNii]]', 271, p.ciniiLink },
	{ 'CWGC', '[[CWGC (identifier)|CWGC]]', 1908, p.cwgcLink },
	{ 'DAAO', '[[DAAO (identifier)|DAAO]]', 1707, p.daaoLink },
	{ 'DBLP', '[[DBLP (identifier)|DBLP]]', 2456, p.dblpLink },
	{ 'DSI', '[[DSI (identifier)|DSI]]', 2349, p.dsiLink },
	{ 'FNZA', '[[:d:Property:P6792|FNZA]]', 6792, p.fnzaLink },
	{ 'GND', '[[GND (identifier)|GND]]', 227, p.gndLink },
	{ 'HDS', '[[HDS (identifier)|HDS]]', 902, p.hdsLink },
	{ 'IAAF', '[[IAAF (identifier)|IAAF]]', 1146, p.iaafLink },
	{ 'ICCU', '[[ICCU (identifier)|ICCU]]', 396, p.iccuLink }, --formerly SBN
	{ 'ICIA', '[[ICIA (identifier)|ICIA]]', 1736, p.iciaLink },
	{ 'ISNI', '[[ISNI (identifier)|ISNI]]', 213, p.isniLink },
	{ 'Joconde', '[[Joconde (identifier)|Joconde]]' , 347, p.jocondeLink },
	{ 'KULTURNAV', '[[KulturNav (identifier)|KulturNav]]', 1248, p.kulturnavLink },
	{ 'LCCN', '[[LCCN (identifier)|LCCN]]', 244, p.lccnLink },
	{ 'LIR', '[[LIR (identifier)|LIR]]', 886, p.lirLink },
	{ 'LNB', '[[LNB (identifier)|LNB]]', 1368, p.lnbLink },
	{ 'Léonore', '[[Léonore (identifier)|Léonore]]', 640, p.leonoreLink },
	{ 'MBA', '[[MBA (identifier)|MBA]]', 434, p.mbaLink, category = 'MusicBrainz' }, --special category name
	{ 'MBAREA', '[[MBAREA (identifier)|MBAREA]]', 982, p.mbareaLink, category = 'MusicBrainz area' }, --special category name
	{ 'MBI', '[[MBI (identifier)|MBI]]', 1330, p.mbiLink, category = 'MusicBrainz instrument' }, --special category name
	{ 'MBL', '[[MBL (identifier)|MBL]]', 966, p.mblLink, category = 'MusicBrainz label' }, --special category name
	{ 'MBP', '[[MBP (identifier)|MBP]]', 1004, p.mbpLink, category = 'MusicBrainz place' }, --special category name
	{ 'MBRG', '[[MBRG (identifier)|MBRG]]', 436, p.mbrgLink, category = 'MusicBrainz release group' }, --special category name
	{ 'MBS', '[[MBS (identifier)|MBS]]', 1407, p.mbsLink, category = 'MusicBrainz series' }, --special category name
	{ 'MBW', '[[MBW (identifier)|MBW]] work', 435, p.mbwLink, category = 'MusicBrainz work' }, --special category name
	{ 'MGP', '[[MGP (identifier)|MGP]]', 549, p.mgpLink },
	{ 'NARA', '[[NARA (identifier)|NARA]]', 1225, p.naraLink },
	{ 'NCL', '[[NCL (identifier)|NBL]]', 1048, p.nclLink },
	{ 'NDL', '[[NDL (identifier)|NDL]]', 349, p.ndlLink },
	{ 'NGV', '[[NGV (identifier)|NGV]]', 2041, p.ngvLink },
	{ 'NKC', '[[NKC (identifier)|NKC]]', 691, p.nkcLink },
	{ 'NLA', '[[NLA (identifier)|NLA]]', 409, p.nlaLink },
	{ 'NLG', '[[NLG (identifier)|NLG]]', 3348, p.nlgLink },
	{ 'NLI', '[[NLI (identifier)|NLI]]', 949, p.nliLink },
	{ 'NLK', '[[NLK (identifier)|NLK]]', 5034, p.nlkLink },
	{ 'NLP', '[[NLP (identifier)|NLP]]', 1695, p.nlpLink },
	{ 'NLR', '[[NLR (identifier)|NLR]]', 1003, p.nlrLink },
	{ 'NSK', '[[NSK (identifier)|NSK]]', 1375, p.nskLink },
	{ 'NTA', '[[NTA (identifier)|NTA]]', 1006, p.ntaLink },
	{ 'ORCID', '[[ORCID (identifier)|ORCID]]', 496, p.orcidLink },
	{ 'PIC', '[[:d:Q23892012|PIC]]', 2750, p.picLink },
	{ 'PLWABN', '[[PLWABN (identifier)|PLWABN]]', 7293, p.plwabnLink },
	{ 'RID', '[[RID (identifier)|ResearcherID]]', 1053, p.ridLink },
	{ 'RERO', '[[RERO (identifier)|RERO]]', 3065, p.reroLink },
	{ 'RKDartists', '[[RKDartists (identifier)|RKD]]', 650, p.rkdartistsLink },
	{ 'RKDID', '[[RKDID (identifier)|RKDimages ID]]', 350, p.rkdidLink },
	{ 'RSL', '[[RSL (identifier)|RSL]]', 947, p.rslLink },
	{ 'SELIBR', '[[SELIBR (identifier)|SELIBR]]', 906, p.selibrLink },
	{ 'SIKART', '[[SIKART (identifier)|SIKART]]', 781, p.sikartLink },
	{ 'SNAC-ID', '[[SNAC-ID (identifier)|SNAC]]', 3430, p.snacLink },
	{ 'SUDOC', '[[SUDOC (identifier)|SUDOC]]', 269, p.sudocLink },
	{ 'S2AuthorId', '[[S2AuthorId (identifier)|S2AuthorId]]', 4012, p.s2authoridLink, category = 'Semantic Scholar author' }, --special category name
	{ 'TA98', '[[TA98 (identifier)|TA98]]', 1323, p.ta98Link },
	{ 'TDVİA', '[[TDVİA (identifier)|TDVİA]]', 7314, p.tdviaLink },
	{ 'TE', '[[TE (identifier)|TE]]', 1693, p.teLink },
	{ 'TePapa', '[[TePapa (identifier)|TePapa]]', 3544, p.tepapaLink },
	{ 'TH', '[[TH (identifier)|TH]]', 1694, p.thLink },
	{ 'TLS', '[[TLS (identifier)|TLS]]', 1362, p.tlsLink },
	{ 'Trove', '[[Trove (identifier)|Trove]]', 1315, p.troveLink }, --formerly NLA-person
	{ 'UKPARL', '[[UKPARL (identifier)|UKPARL]]', 6213, p.ukparlLink },
	{ 'ULAN', '[[ULAN (identifier)|ULAN]]', 245, p.ulanLink },
	{ 'USCongress', '[[US Congress (identifier)|US Congress]]', 1157, p.uscongressLink },
	{ 'VcBA', '[[VcBA (identifier)|VcBA]]', 8034, p.vcbaLink },
	{ 'VIAF', '[[VIAF (identifier)|VIAF]]', 214, p.viafLink },
	{ 'WORLDCATID', '[[WorldCat Identities (identifier)|WorldCat Identities]]', 7859, nil },
}

-- Legitimate aliases to p.conf, for convenience
-- Format: { 'alias', 'parameter name in p.conf' }
p.aliases = {
	{ 'Leonore', 'Léonore' }, --alias name without diacritics
	{ 'leonore', 'Léonore' }, --lowercase variant without diacritics
	{ 'MusicBrainz', 'MBA' },
	{ 'MusicBrainz artist', 'MBA' },
	{ 'MusicBrainz label', 'MBL' },
	{ 'MusicBrainz release group', 'MBRG' },
	{ 'MusicBrainz work', 'MBW' },
	{ 'SBN', 'ICCU' }, --SBN alias to be deprecated at a later stage
	{ 'TDVIA', 'TDVİA' }, --alias name without diacritics
	{ 'tdvia', 'TDVİA' }, --lowercase variant without diacritics
}

-- Deprecated aliases to p.conf; tracked in [[Category:Wikipedia articles with deprecated authority control identifiers]]
-- Format: { 'deprecated parameter name', 'replacement parameter name in p.conf' }
p.deprecated = {
	{ 'GKD', 'GND' },
	{ 'PND', 'GND' },
	{ 'RLS', 'RSL' },	
	{ 'SWD', 'GND' },
	{ 'NARA-organization', 'NARA' },
	{ 'NARA-person', 'NARA' },
}

--[[==========================================================================]]
--[[                                   Main                                   ]]
--[[==========================================================================]]

function p.authorityControl( frame )
	local resolveEntity = require( "Module:ResolveEntityId" )
	local parentArgs = frame:getParent().args
	local elements = {} --create/insert rows later
	local worldcatCat = ''
	local suppressedIdCat = ''
	local deprecatedIdCat = ''
	
	--Redirect aliases to proper parameter names
	for _, a in pairs( p.aliases ) do
		local alias, param = a[1], a[2]
		if (parentArgs[param] == nil or parentArgs[param] == '') and parentArgs[alias] then
			parentArgs[param] = parentArgs[alias]
		end
	end
	
	--Redirect deprecated parameters to proper parameter names, and assign tracking cat
	for _, d in pairs( p.deprecated ) do
		local dep, param = d[1], d[2]
		if (parentArgs[param] == nil or parentArgs[param] == '') and parentArgs[dep] then
			parentArgs[param] = parentArgs[dep]
			if namespace == 0 then
				deprecatedIdCat = '[[Category:Wikipedia articles with deprecated authority control identifiers|'..dep..']]'
			end
		end
	end
	
	--Use QID= parameter for testing/example purposes only
	local itemId = nil
	if namespace ~= 0 then
		local qid = parentArgs['qid'] or parentArgs['QID']
		if qid then
			itemId = 'Q'..mw.ustring.gsub(qid, '^[Qq]', '')
			itemId = resolveEntity._id(itemId) --nil if unresolvable
		end
	else
		itemId = mw.wikibase.getEntityIdForCurrentPage()
	end
	
	--Wikidata fallback if requested
	if itemId then
		for _, params in ipairs( p.conf ) do
			if params[3] > 0 then
				local val = parentArgs[mw.ustring.lower(params[1])] or parentArgs[params[1]]
				if val == nil or val == '' then
					local canUseWikidata = nil
					if reqs[params[1]] 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
							if val == '' and (namespace == 0 or testcases) then
								suppressedIdCat = '[[Category:Wikipedia articles with suppressed authority control identifiers|'..params[1]..']]'
							else
								parentArgs[params[1]] = wikidataIds[1]
	end	end	end	end	end	end	end
	
	--Configured rows
	local rct = 0
	for _, params in ipairs( p.conf ) do
		local val = parentArgs[mw.ustring.lower(params[1])] or parentArgs[params[1]]
		if val and val ~= '' and type(params[4]) == 'function' then
			table.insert( elements, p.createRow( params[1], params[2]..':', val, params[4]( val ), true, params.category ) )
			rct = rct + 1
		end
	end
	
	--WorldCat
	local worldcatId = parentArgs['worldcatid'] or parentArgs['WORLDCATID']
	if worldcatId and worldcatId ~= '' then --if WORLDCATID present & unsuppressed
		table.insert( elements, p.createRow( 'WORLDCATID', '', worldcatId, '[[WorldCat Identities (identifier)|WorldCat Identities]]: [https://www.worldcat.org/identities/'..mw.uri.encode(worldcatId, 'PATH')..' '..worldcatId..']', false ) ) --Validation?
		worldcatCat = p.getCatForId( 'WORLDCATID' )
	elseif worldcatId == nil then --if WORLDCATID absent but unsuppressed
		local viafId = parentArgs['viaf'] or parentArgs['VIAF']
		local lccnId = parentArgs['lccn'] or parentArgs['LCCN']
		if viafId and viafId ~= '' and p.viafLink( viafId ) then --VIAF must be present, unsuppressed, & validated
			table.insert( elements, p.createRow( 'VIAF', '', viafId, '[[WorldCat Identities (identifier)|WorldCat Identities]] (via VIAF): [https://www.worldcat.org/identities/containsVIAFID/'..viafId..' '..viafId..']', false ) )
			if namespace == 0 then 
				worldcatCat = '[[Category:Wikipedia articles with WorldCat-VIAF identifiers]]'
			end
		elseif lccnId and lccnId ~= '' and p.lccnLink( lccnId ) then --LCCN must be present, unsuppressed, & validated
			local lccnParts = p.splitLccn( lccnId )
			if lccnParts and lccnParts[1] ~= 'sh' then
				local lccnIdFmtd = lccnParts[1]..lccnParts[2]..'-'..lccnParts[3]
				table.insert( elements, p.createRow( 'LCCN', '', lccnId, '[[WorldCat Identities (identifier)|WorldCat Identities]] (via LCCN): [https://www.worldcat.org/identities/lccn-'..lccnIdFmtd..' '..lccnIdFmtd..']', false ) )
				if namespace == 0 then
					worldcatCat = '[[Category:Wikipedia articles with WorldCat-LCCN identifiers]]'
				end
			end
		end
	elseif worldcatId == '' then --if WORLDCATID suppressed
		suppressedIdCat = '[[Category:Wikipedia articles with suppressed authority control identifiers|WORLDCATID]]'
	end
	
	local Navbox = require('Module:Navbox')
	local elementsCat = ''
	if rct == 0 or rct >= 25 then
		local eCat = 'AC with '..rct..' elements'
		elementsCat  = '[[Category:'..eCat..']]'..p.redCatLink(eCat)
	end
	
	local outString = ''
	if #elements > 0 then
		local args = { pid = 'identifiers' } -- #target the list of identifiers
		if testcases and itemId then args = { pid = 'identifiers', qid = itemId } end --expensive
		local pencil = frame:expandTemplate{ title = 'EditAtWikidata', args = args}
		outString = Navbox._navbox( {
			name  = 'Authority control',
			navboxclass = 'authority-control',
			bodyclass = 'hlist',
			group1 = '[[Help:Authority control|Authority control]]'..pencil,
			list1 = table.concat( elements )
			} )
	end
	
	local auxCats = worldcatCat .. elementsCat .. suppressedIdCat .. deprecatedIdCat
	if testcases then
		auxCats = mw.ustring.gsub(auxCats, '(%[%[)(Category)', '%1:%2') --for easier checking
	end
	outString = outString .. auxCats
	if namespace ~= 0 then
		outString = mw.ustring.gsub(outString, '(%[%[)(Category:Wikipedia articles)', '%1:%2') --by definition
	end
	
	return outString
end

return p