Module:Citation

--require "mw.text"

local z = { wikitext = require "Module:Wikitext" }

function hideinprint(content) return content end

function onlyinprint(content) return "" end

function nowiki(frame, content) return mw.text.tag({name="nowiki",contents=content,params={}}, frame) end

function externallinkid(frame, args) local sep = args.separator or " " args.suffix = args.suffix or "" local t0 = onlyinprint(args.label .. sep .. args.id) local t1 = hideinprint("" .. args.label .. "" .. sep .. "[" .. args.prefix .. mw.url.encode(args.id) .. args.suffix .. " " .. nowiki(frame, args.id) .. "]") return t0 .. t1 end

function internallinkid(frame, args) local sep = args.separator or " " args.suffix = args.suffix or "" local t0 = onlyinprint(args.label .. sep .. args.id) local t1 = hideinprint("" .. args.label .. "" .. sep .. "" .. nowiki(frame, args.id) .. "") return t0 .. t1 end

function amazon(frame, id, domain) if ( nil == domain ) then domain = "com" elseif ( "jp" == domain or "uk" == domain ) then domain = "co." .. domain end return externallinkid(frame, {link="Amazon Standard Identification Number",label="ASIN",prefix="//www.amazon."..domain.."/dp/",id=id}) end

function doi(frame, id, broken, inactive, nocat) local text = externallinkid(frame, {link="Digital object identifier",label="doi",prefix="http://dx.doi.org/",id=id,separator=":"}) local cat = "" if ( inactive ~= nil ) then inactive = " (inactive " .. inactive .. ")" cat = cat .. ""   else inactive = "" end if ( string.sub(id,1,3) ~= "10." ) then cat = cat .. ""   end if ( nocat and nocat ~= "" ) then cat = "" end return text .. inactive .. cat end

function url(frame, id) local t0 = onlyinprint(id) local t1 = hideinprint("[" .. id .. " " .. nowiki(frame, id) .. "]") return t0 .. t1 end

function openlibrary(frame, id) local cat = "" local prefix = "" local code = id:sub(-1,-1) if ( code == "A" ) then prefix = "http://openlibrary.org/authors/OL" elseif ( code == "M" ) then prefix = "http://openlibrary.org/books/OL" elseif ( code == "W" ) then prefix = "http://openlibrary.org/works/OL" else prefix = "http://openlibrary.org/OL" cat = cat .. ""   end local text = externallinkid(frame, {link="Open Library",label="OL",prefix=prefix,id=id}) return text .. cat end

function reducetoinitials(first) local initials = {} for word in string.gmatch(first, "%S+") do       table.insert(initials, string.sub(word,1,1)) -- Vancouver format does not include full stops. end return table.concat(initials) -- Vancouver format does not include spaces. end

function listpeople(control, people) local sep = control.sep local namesep = control.namesep local format = control.format local maximum = control.maximum local text = {} for i,person in ipairs(people) do       if (person.last ~= nil) then local mask = person.mask local one if ( maximum ~= nil and i == maximum + 1 ) then one = "et al." elseif ( maximum ~= nil and i > maximum + 1 ) then break elseif (mask ~= nil) then local n = tonumber(mask) if (n ~= nil) then one = string.rep("&mdash;",n) else one = mask end else one = person.last local first = person.first if (first ~= nil) then if ( "vanc" == format ) then first = reducetoinitials(first) end one = one .. namesep .. first end if (person.link ~= nil) then one = "" .. one .. "" end end table.insert(text, one) end end local result = table.concat(text, sep) -- construct list if ( "scap" == format ) then result= mw.text.tag({name="span", contents=result, params={class="smallcaps", style="font-variant:small-caps;"}}) end -- if necessary wrap result in tag to format in Small Caps return result end

function anchorid(args) local P1 = args[1] or "" local P2 = args[2] or "" local P3 = args[3] or "" local P4 = args[4] or "" local P5 = args[5] or "" return "CITEREF" .. P1 .. P2 .. P3 .. P4 .. P5 end

function refid(args) local p = args.p or "" local pp = args.pp or "" local loc = args.loc or "" return anchorid(args) .. p .. pp .. loc end

function name(args) local P1 = args[1] or "" if ( args[5] ~= nil) then return P1 .. " et al." else local P2 = args[2] or "" local P3 = args[3] or "" local P4 = args[4] or "" if ( args[4] ~= nil ) then P4 = " " .. P4           P3 = ", & " .. P3           P2 = ", " .. P2       elseif ( args[3] ~= nil ) then P3 = " " .. P3           P2 = " & " .. P2       elseif ( args[2] ~= nil ) then P2 = " " .. P2                   end return P1 .. P2 .. P3 .. P4   end end

function crossref(frame, args) local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local LB = config.BracketLeft or "" local RB = config.BracketRight or "" local anchor = args.ref or args.Ref or anchorid(args) local text = name(args) local loc = args.loc local page = args.p or args.page local pages = args.pp or args.pages if nil == loc then loc = "" else loc = " " .. loc end if ( page ~= nil ) then local pagesep = config.PageSep or ", p. " loc = loc .. pagesep .. page end if ( pages ~= nil ) then local pagessep = config.PagesSep or ", pp. " loc = loc .. pagessep .. pages end local pagename = args.pagename or "" local ps = args.Postscript or "" return LB .. "" .. text .. "" .. loc .. RB .. ps end

function extractauthor(args, i)   local last = args["author" .. i .. "-last"] or args["author-last" .. i] or args["last" .. i] or args["surname" .. i] or args["Author" .. i] or args["author" .. i]   if ( nil == last ) then return nil end return { last = last, first = args["author" .. i .. "-first"] or args["author-first" .. i] or args["first" .. i] or args["given" .. i], link = args["author" .. i .. "-link"] or args["author-link" .. i] or args["author" .. i .. "link"] or args["authorlink" .. i], mask = args["author" .. i .. "-mask"] or args["author-mask" .. i] or args["author" .. i .. "mask"] or args["authormask" .. i]   } end

function extracteditor(args, i)   local last = args["editor" .. i .. "-last"] or args["editor-last" .. i] or args["EditorSurname" .. i] or args["Editor" .. i] or args["editor" .. i]   if ( nil == last ) then return nil end return { last = last, first = args["editor" .. i .. "-first"] or args["editor-first" .. i] or args["EditorGiven" .. i], link = args["editor" .. i .. "-link"] or args["editor-link" .. i] or args["editor" .. i .. "link"] or args["editorlink" .. i], mask = args["editor" .. i .. "-mask"] or args["editor-mask" .. i] or args["editor" .. i .. "mask"] or args["editormask" .. i]   } end

function citation0(frame, args) local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local PPrefix = config.PPrefix or "p." local PPPrefix = config.PPPrefix or "pp." if ( nil ~= args.nopp ) then PPPrefix = "" PPrefix = "" end -- Transfer unnumbered arguments to numbered arguments if necessary. args["author1"] = args["author1"] or args["author"] args["author1-last"] = args["author1-last"] or args["author-last"] or args["last"] args["author1-first"] = args["author1-first"] or args["author-first"] or args ["first"] args["author1-link"] = args["author1-link"] or args["author-link"] args["author1-mask"] = args["author1-mask"] or args["author-mask"] args["author1link"] = args["author1link"] or args["authorlink"] args["editor1"] = args["editor1"] or args["editor"] args["editor1-last"] = args["editor1-last"] or args["editor-last"] args["editor1-first"] = args["editor1-first"] or args["editor-first"] args["editor1-link"] = args["editor1-link"] or args["editor-link"] args["editor1-mask"] = args["editor1-mask"] or args["editor-mask"] args["editor1link"] = args["editor1link"] or args["editorlink"]

-- Pick out the relevant fields from the arguments. Different citation templates define different field names for the same underlying things. local Authors = args.authors local i    local a = {} i = 1 while true do       a[i] = extractauthor(args, i)        if ( nil == a[i]) then break end i = i + 1 end local Coauthors = args.coauthors or args.coauthor local Others = args.others local EditorMask = args.editormask or args["editor-mask"] local EditorFormat = args["editor-format"] or args.editorformat local Editors = args.editors local e = {} i = 1 while true do       e[i] = extracteditor(args, i)        if ( nil == e[i]) then break end i = i + 1 end local Year = args.year local PublicationDate = args.publicationdate local OrigYear = args.origyear local Date = args.date local LayDate = args.laydate local Title = args.title or args.encyclopaedia or args.encyclopedia or args.dictionary local BookTitle = args.booktitle local Conference = args.conference local TransTitle = args.trans_title local TitleNote = args.department local TitleLink = args.titlelink or args.episodelink local Chapter = args.chapter or args.article or args.entry local ChapterLink = args.chapterlink local TransChapter = args["trans-chapter"] or args.trans_chapter local TitleType = args.type local ArchiveURL = args["archive-url"] or args.archiveurl local URL = args.url local ChapterURL = args["chapter-url"] or args.chapterurl local ConferenceURL = args["conference-url"] or args.conferenceurl local Periodical = args.journal or args.newspaper or args.magazine or args.work or args.periodical or args.encyclopedia or args.encyclopaedia local Series = args.series or args.version local Volume = args.volume local Issue = args.issue or args.number local Position = nil local Page = args.page local Pages = args.pages local PP = args.pp   local At = args.at    local Edition = args.edition local PublicationPlace = args["publication-place"] or args.publicationplace or args.place or args.location local PublisherName = args.publisher local SubscriptionRequired = args.subscription local Via = args.via local AccessDate = args["access-date"] or args.accessdate local ArchiveDate = args["archive-date"] or args.archivedate local DeadURL = args.deadurl local Language = args.language or args["in"] local Format = args.format local Ref = args.ref or args.Ref local ARXIV = args.arxiv or args.ARXIV local ASIN = args.asin or args.ASIN local ASINTLD = args["ASIN-TLD"] local BIBCODE = args.bibcode or args.BIBCODE local DOI = args.doi or args.DOI local DoiBroken = args.doi_inactivedate or args.doi_brokendate or args.DoiBroken local ID = args.id or args.ID   local ISBN = args.isbn13 or args.isbn or args.ISBN local ISSN = args.issn or args.ISSN local JFM = args.jfm or args.JFM local JSTOR = args.jstor or args.JSTOR local LCCN = args.lccn or args.LCCN local MR = args.mr or args.MR   local OCLC = args.oclc or args.OCLC local OL = args.ol or args.OL   local OSTI = args.osti or args.OSTI local PMC = args.pmc or args.PMC local PMID = args.pmid or args.PMID local RFC = args.rfc or args.RFC local SSRN = args.ssrn or args.SSRN local ZBL = args.zbl or args.ZBL local Quote = args.quote or args.quotation local PostScript = args.postscript local LaySummary = args.laysummary local LaySource = args.laysource local Transcript = args.transcript local TranscriptURL = args["transcript-url"] or args.transcripturl

-- At this point fields may be nil if they weren't specified in the template use. We can use that fact. -- Account for the oddity that is, before generation of COinS data. if ( BookTitle ) then Chapter = Title ChapterLink = TitleLink TransChapter = TransTitle Title = BookTitle TitleLink = nil TransTitle = nil end -- Account for the oddity that is, before generation of COinS data. if config.CitationClass == "episode" then local AirDate = args.airdate local SeriesLink = args.serieslink local Season = args.season local SeriesNumber = args.seriesnumber or args.seriesno local Network = args.network local Station = args.station local s = {} if Issue ~= nil then table.insert(s, "episode " .. Issue) Issue = nil end if Season ~= nil then table.insert(s, "season " .. Season) end if SeriesNumber ~= nil then table.insert(s, "series " .. SeriesNumber) end local n = {} if Network ~= nil then table.insert(n, Network) end if Station ~= nil then table.insert(n, Station) end Date = Date or AirDate Chapter = Title ChapterLink = TitleLink TransChapter = TransTitle Title = Series TitleLink = SeriesLink TransTitle = nil local Sep = args["series-separator"] or args["separator"] or ". " Series = table.concat(s, Sep) ID = table.concat(n, Sep) end -- These data form a COinS tag (see ) which allows automated tools to parse the citation information. local OCinSdata = {} OCinSdata.ctx_ver = "Z39.88-2004" OCinSdata.rft_val_fmt = "info:ofi/fmt:kev:mtx:" OCinSdata.rfr_id = "info:sid/en.wikipedia.org:" .. config.fullpagename if ( nil ~= Periodical ) then OCinSdata["rft.genre"] = "article" OCinSdata["rft.jtitle"] = Periodical if ( nil ~= Title ) then OCinSdata["rft.atitle"] = Title end elseif ( nil ~= Chapter ) then OCinSdata["rft.genre"] = "bookitem" OCinSdata["rft.btitle"] = Chapter if ( nil ~= Title ) then OCinSdata["rft.atitle"] = Title end else OCinSdata["rft.genre"] = "book" if ( nil ~= Title ) then OCinSdata["rft.btitle"] = Title end end OCinSdata["rft.place"] = PublicationPlace OCinSdata["rft.date"] = Date or Year or PublicationDate OCinSdata["rft.series"] = Series OCinSdata["rft.volume"] = Volume OCinSdata["rft.issue"] = Issue OCinSdata["rft.pages"] = Page or Pages or At   OCinSdata["rft.edition"] = Edition OCinSdata["rft.pub"] = PublisherName OCinSdata["rft.isbn"] = ISBN OCinSdata["rft.issn"] = ISSN OCinSdata["rft.jfm"] = JFM OCinSdata["rft.jstor"] = JSTOR OCinSdata["rft.lccn"] = LCCN OCinSdata["rft.mr"] = MR   OCinSdata.rft_id = URL or ChapterURL if ( nil ~= a[1] and nil ~= a[1].last) then local last = a[1].last local first = a[1].first OCinSdata["rft.aulast"] = last if ( nil ~= first ) then OCinSdata["rft.aufirst"] = first OCinSdata["rft.au"] = last .. (args.NameSep or ", ") .. first else OCinSdata["rft.au"] = last end end local OCinSids = {} OCinSids["info:arxiv"] = ARXIV OCinSids["info:asin"] = ASIN OCinSids["info:bibcode"] = BIBCODE OCinSids["info:doi"] = DOI OCinSids["info:oclcnum"] = OCLC OCinSids["info:olnum"] = OL   OCinSids["info:osti"] = OSTI OCinSids["info:pmc"] = PMC OCinSids["info:pmid"] = PMID OCinSids["info:rfc"] = RFC OCinSids["info:ssrn"] = SSRN OCinSids["info:zbl"] = ZBL local OCinStitle = "" for name,value in pairs(OCinSids) do       OCinStitle = OCinStitle .. "rft_id=" .. mw.url.encode(name .. "/" .. value) .. "&"   end for name,value in pairs(OCinSdata) do       OCinStitle = OCinStitle .. mw.url.encode(name .. "=" .. value) .. "&"   end

-- Now perform various field substitutions. -- We also add leading spaces and surrounding markup and punctuation to the various parts of the citation, but only when they are non-nil. if ( Authors == nil ) then local AuthorNameSep = args["author-name-separator"] or args["name-separator"] or "&#44; " local AuthorSep = args["author-separator"] or args["separator"] or "&#59; " local AuthorFormat = args["author-format"] or args.authorformat local AuthorMaximum = tonumber(args["display-authors"] or args.displayauthors) or 8 local control = { sep = AuthorSep, namesep = AuthorNameSep, format = AuthorFormat, maximum = AuthorMaximum } Authors = listpeople(control, a)    end if ( Editors == nil ) then local EditorNameSep = args["editor-name-separator"] or args["name-separator"] or "&#44; " local EditorSep = args["editor-separator"] or args["separator"] or "&#59; " local EditorFormat = args["editor-format"] or args.editorformat local EditorMaximum = tonumber(args["display-editors"] or args.displayeditors) or 3 local control = { sep = EdithorSep, namesep = EditorNameSep, format = EditorFormat, maximum = EditorMaximum } Editors = listpeople(control, e)    end if ( Date == nil ) then --  there's something hinky with how this adds dashes to perfectly-good free-standing years --       Date = Year        if ( Date ~= nil ) then            local Month = args.month            if ( Month == nil ) then                 local Began = args.began                local Ended = args.ended                if Began ~= nil and Ended ~= nil then                    Month = Began .. "–" .. Ended                else                    Month = "–"                end            end            Date = Month .. " " .. Date            local Day = args.day            if ( Day ~= nil ) then Date = Day .. " " .. Date end        end  -- so let's use the original version for now Date = Year if ( Date ~= nil ) then local Month = args.month if ( Month ~= nil ) then Date = Month .. " " .. Date local Day = args.day if ( Day ~= nil ) then Date = Day .. " " .. Date end end end end if ( PublicationDate == Date or PublicationDate == Year ) then PublicationDate = nil end if ( nil ~= ArchiveURL ) then local temp = URL URL = ArchiveURL end if ( TransTitle ~= nil ) then TransTitle = " [" .. TransTitle .. "]." else TransTitle = "" end if ( TransChapter ~= nil ) then TransChapter = " [" .. TransChapter .. "]." else TransChapter = "" end if ( Chapter ~= nil ) then if ( ChapterLink ~= nil ) then Chapter = "" .. Chapter .. "" end if ( Periodical ~= nil ) then Chapter = "''" .. Chapter .. "''"       else Chapter = "\"" .. Chapter .. "\"" end Chapter = Chapter .. TransChapter if ( ChapterLink == nil ) then if ( ChapterURL ~= nil ) then Chapter = "[" .. ChapterURL .. " " .. Chapter .. "]"           elseif ( URL ~= nil ) then Chapter = "[" .. URL .. " " .. Chapter .. "]"               URL = nil end end Chapter = Chapter .. ". " -- with end-space else Chapter = "" end if ( Title ~= nil ) then if ( TitleLink ~= nil ) then Title = "" .. Title .. "" end if ( Periodical ~= nil ) then Title = "\"" .. Title .. "\"" elseif ( config.CitationClass == "web"             or config.CitationClass == "news" ) then Title = "\"" .. Title .. "\"" else Title = "''" .. Title .. "''"       end Title = Title .. TransTitle if ( TitleLink == nil and URL ~= nil ) then Title = "[" .. URL .. " " .. Title .. "]"           URL = nil end Title = Title .. "." -- with end-dot else Title = "" end if ( Conference ~= nil ) then if ( ConferenceURL ~= nil ) then Conference = "[" .. ConferenceURL .. " " .. Conference .. "]"       end Conference = " " .. Conference else Conference = "" end if ( nil ~= Position or nil ~= Page or nil ~= Pages ) then At = nil end if ( nil == Position ) then local Minutes = args.minutes if ( nil ~= Minutes ) then Position = " " .. Minutes .. " minutes in" else local Time = args.time if ( nil ~= Time ) then local TimeCaption = args.timecaption or "Event occurs at" Position = " " .. TimeCaption .. " " .. Time else Position = "" end end else Position = " " .. Position end if ( PP ~= nil) then if ( tonumber(PP) ~= nil ) then Page = "lone " .. PP       else Page = "stuff " .. PP       end end if ( nil == Page ) then Page = "" elseif ( Periodical ~= nil ) then Page = ": " .. Page else Page = " " .. PPrefix .. Page end if ( nil == Pages ) then Pages = "" elseif ( Periodical ~= nil ) then Pages = ": " .. Pages else Pages = " " .. PPPrefix .. Pages end if ( At ~= nil ) then At = " " .. At else At = "" end if ( Coauthors ~= nil ) then Coauthors = " " .. Coauthors .. "." else Coauthors = "" end if ( Others ~= nil ) then Others = " " .. Others .. "." else Others = "" end if ( TitleType ~= nil ) then TitleType = " (" .. TitleType .. ")." else TitleType = "" end if ( TitleNote ~= nil ) then TitleNote = " (" .. TitleNote .. ")." else TitleNote = "" end if ( PublicationPlace ~= nil ) then PublicationPlace = PublicationPlace .. ": " else PublicationPlace = "" end if ( Language ~= nil ) then Language = " (in " .. Language .. ")" else Language = "" end if ( Edition ~= nil ) then Edition = " (" .. Edition .. " edition)" else Edition = "" end if ( Volume ~= nil ) then Volume = " '''" .. Volume .. "'''" else Volume = "" end if ( Issue ~= nil ) then Issue = " (" .. Issue .. ")" else Issue = "" end if ( Series ~= nil ) then Series = " " .. Series .. "." else Series = "" end if ( Format ~= nil ) then Format = " (" .. Format .. ")" else Format = "" end if ( OrigYear ~= nil ) then OrigYear = " " .. OrigYear else OrigYear = "" end if ( Date ~= nil ) then Date = Date else Date = "" end if ( Via ~= nil ) then Via = " &mdash; via " .. Via else Via = "" end if ( AccessDate ~= nil ) then AccessDate = " Retrieved " .. AccessDate .. "." else AccessDate = "" end if ( SubscriptionRequired ~= nil ) then SubscriptionRequired = " " .. mw.text.tag({name="span", contents="(subscription required)", params={style="font-size:0.95em; font-size: 90%; color: #555"}}) else SubscriptionRequired = "" end if ( ARXIV ~= nil ) then ARXIV = " " .. externallinkid(frame, {label="arXiv",link="arXiv",prefix="http://arxiv.org/abs/",id=ARXIV,separator=":"}) else ARXIV = "" end if ( ASIN ~= nil ) then ASIN = " " .. amazon(frame, ASIN, ASINTLD) else ASIN = "" end if ( BIBCODE ~= nil ) then BIBCODE = " " .. externallinkid(frame, {label="Bibcode",link="Bibcode",prefix="http://adsabs.harvard.edu/abs/",id=BIBCODE,separator=":"}) else BIBCODE = "" end if ( DOI ~= nil ) then DOI = " " .. doi(frame, DOI, DoiBroken) else DOI = "" end if ( ID ~= nil ) then ID = " " .. ID else ID = "" end if ( ISBN ~= nil ) then ISBN = " " .. internallinkid(frame, {label="ISBN",link="International Standard Book Number",prefix="Special:BookSources/",id=ISBN}) else ISBN = "" end if ( ISSN ~= nil ) then ISSN = " " .. externallinkid(frame, {label="ISSN",link="International Standard Serial Number",prefix="//www.worldcat.org/issn/",id=ISSN}) else ISSN = "" end if ( JFM ~= nil ) then JFM = " " .. externallinkid(frame, {label="JFM",link="Jahrbuch über die Fortschritte der Mathematik",prefix="http://www.zentralblatt-math.org/zmath/en/search/?format=complete&q=an:",id=JFM}) else JFM = "" end if ( JSTOR ~= nil ) then JSTOR = " " .. externallinkid(frame, {label="JSTOR",link="JSTOR",prefix="http://www.jstor.org/stable/",id=JSTOR}) else JSTOR = "" end if ( LCCN ~= nil ) then LCCN = " " .. externallinkid(frame, {label="LCCN",link="Library of Congress Control Number",prefix="http://lccn.loc.gov/",id=LCCN}) else LCCN = "" end if ( MR ~= nil ) then MR = " " .. externallinkid(frame, {label="MR",link="Mathematical Reviews",prefix="http://www.ams.org/mathscinet-getitem?mr=",id=MR}) else MR = "" end if ( OCLC ~= nil ) then OCLC = " " .. externallinkid(frame, {label="OCLC",link="Online Computer Library Center",prefix="//www.worldcat.org/oclc/",id=OCLC}) else OCLC = "" end if ( OL ~= nil ) then OL = " " .. openlibrary(frame, id) else OL = "" end if ( OSTI ~= nil ) then OSTI = " " .. externallinkid(frame, {label="OSTI",link="Office of Scientific and Technical Information",prefix="http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=",id=OSTI}) else OSTI = "" end if ( PMC ~= nil ) then PMC = " " .. externallinkid(frame, {label="PMC",link="PubMed Central",prefix="//www.ncbi.nlm.nih.gov/pmc/articles/PMC",suffix="/?tool=pmcentrez",id=PMC}) else PMC = "" end if ( PMID ~= nil ) then PMID = " " .. externallinkid(frame, {label="PMID",link="PubMed Identifier",prefix="//www.ncbi.nlm.nih.gov/pubmed/",id=PMID}) else PMID = "" end if ( RFC ~= nil ) then RFC = " " .. externallinkid(frame, {label="RFC",link="Request for Comments",prefix="//tools.ietf.org/html/rfc",id=RFC}) else RFC = "" end if ( SSRN ~= nil ) then SSRN = " " .. externallinkid(frame, {label="SSRN",link="Social Science Research Network",prefix="http://ssrn.com/abstract=",id=SSRN}) else SSRN = "" end if ( URL ~= nil ) then URL = " " .. url(frame, URL) else URL = "" end if ( ZBL ~= nil ) then ZBL = " " .. externallinkid(frame, {label="ZBL",link="Zentralblatt MATH",prefix="http://www.zentralblatt-math.org/zmath/en/search/?format=complete&q=an:",id=ZBL}) else ZBL = "" end if ( Quote ~= nil ) then Quote = " \"" .. Quote .. "\"" PostScript = "" else if ( PostScript ~= nil ) then PostScript = " " .. PostScript else PostScript = "" end Quote = "" end local Archived if ( nil ~= ArchiveURL ) then if ( ArchiveDate ~= nil ) then ArchiveDate = " " .. ArchiveDate else ArchiveDate = "" end if ( "no" == DeadURL ) then Archived = " [" .. ArchiveURL .. "Archived] from the original on" .. ArchiveDate .. "."       else Archived = " Archived from [" .. args.url .. " the original] on" .. ArchiveDate .. "."       end else Archived = "" end local Lay if ( nil ~= LaySummary ) then if ( LayDate ~= nil ) then LayDate = " (" .. LayDate .. ")" else LayDate = "" end if ( LaySource ~= nil ) then LaySource = " – ''" .. LaySource .. "''" else LaySource = "" end Lay = " [" .. LaySummary .. " lay summary]" .. LaySource .. LayDate else Lay = "" end if ( nil ~= Transcript ) then if ( TranscriptURL ~= nil ) then Transcript = "[" .. TranscriptURL .. Transcript .. "]" end else Transcript = "" end local Publisher if ( Periodical ~= nil ) then if ( PublicationDate ~= nil ) then PublicationDate = " " .. PublicationDate else PublicationDate = "" end if ( PublisherName ~= nil ) then Publisher = " (" .. PublicationPlace .. PublisherName .. PublicationDate .. ")." else Publisher = "" end Edition = "" else if ( PublicationDate ~= nil ) then PublicationDate = " (published " .. PublicationDate .. ")" else PublicationDate = "" end if ( PublisherName ~= nil ) then Publisher = " " .. PublicationPlace .. PublisherName .. PublicationDate .. "." else Publisher = "" end end -- Several of the above rely upon detecting this as nil, so do it last. if ( Periodical ~= nil ) then Periodical = " ''" .. Periodical .. "''"   else Periodical = "" end -- Piece all bits together at last. At this point, all should be non-nil. -- We build things this way because it is more efficient in LUA not to keep reassigning to the same string variable over and over. local idcommon = ARXIV .. ASIN .. BIBCODE .. DOI .. ID .. ISBN .. JFM .. JSTOR .. LCCN .. MR .. OCLC .. OL .. OSTI .. PMC .. PMID .. RFC .. SSRN .. URL .. ZBL .. Archived .. AccessDate .. Via .. SubscriptionRequired .. Lay .. Quote .. PostScript local tcommon = Title .. TitleType .. TitleNote .. Format .. Edition .. Language .. Conference .. Periodical .. Series .. Volume .. Issue .. Position .. Page .. Pages .. At .. "."   Date = Date .. OrigYear local text if ( "" ~= Authors ) then if ( "" ~= Date ) then Date = " ("..Date.."). " else Authors = Authors .. ". " end if ( "" ~= Editors ) then Editors = " in " .. Editors .. "." end text = Authors .. Coauthors .. " "..Date .. Chapter .. Others .. Editors .. tcommon .. Publisher .. idcommon elseif ( "" ~= Editors) then Editors = Editors .. " (eds.)" if ( "" ~= Date ) then Date = " (" .. Date .. "). " else Editors = Editors .. ". " end text = Editors .. Date .. Chapter .. tcommon .. Publisher .. idcommon else if ( "" ~= Date ) then Date = " " .. Date .. "." end text = Chapter .. tcommon .. Publisher .. Date .. idcommon end -- Now enclose the whole thing in a element if it is cross-linked from elsewhere. if ( Year == nil ) then Year = "" end if ( Ref ~= nil ) then local id = Ref if ( "harv" == Ref ) then local names = {} if ( "" ~= Authors ) then for i,v in ipairs(a) do names[i] = v.last end elseif ( "" ~= Editors ) then for i,v in ipairs(e) do names[i] = v.last end end if ( names[1] == nil ) then names[1] = Year elseif ( names[2] == nil ) then names[2] = Year elseif ( names[3] == nil ) then names[3] = Year elseif ( names[4] == nil ) then names[4] = Year else names[5] = Year end id = anchorid(names) end local args = { class="citation " .. (config.CitationClass or ""), id=id } text = mw.text.tag({name="span", contents=text, params=args}) end local OCinS = mw.text.tag({name="span", contents=" ", params={class="Z3988",title=OCinStitle,style="display: none;"}}) return text .. OCinS end

function r0(frame, name, group, page) if ( name == nil ) then return "" end if ( group == nil ) then group = "" end local p = "" if ( page ~= nil ) then local contents = ":" .. page p = mw.text.tag({name="sup",contents=contents,params={class="reference",style="white-space:nowrap;"}}) end return mw.text.tag({name="ref",contents="",params={name=name,group=group}}, frame) .. p end

function reflist0(frame, config, args) local contents = args.refs or "" local liststyle = args.liststyle local count = args[1] local width = args.colwidth local group = args.group or config.default_group if ( nil == tonumber(count) and nil == width ) then width = count count = nil end if ( nil == liststyle ) then if ( "upper-alpha" == group or "lower-alpha" == group or "upper-roman" == group or "lower-roman" == group or "upper-greek" == group or "lower-greek" == group ) then liststyle = group else liststyle = config.default_liststyle end end local params = {} params.class = "reflist" params.style = z.wikitext.liststyle(liststyle) if ( nil ~= count ) then params.class = params.class .. " references-column-count references-column-count-" .. count params.style = params.style .. " " .. z.wikitext.columncountstyle(count) end if ( nil ~= width ) then params.class = params.class .. " references-column-width" params.style = params.style .. " " .. z.wikitext.columnwidthstyle(width) end local references = mw.text.tag({name="references",contents=contents,params={group=group}}, frame) return mw.text.tag({name="div",contents=references,params=params}) end

function refbegin0(frame, config, args) local liststyle = args.liststyle local indent = args.indent local indentsize = args.indentsize local count = args[1] local width = args.colwidth if ( nil == tonumber(count) and nil == width ) then width = count count = nil end if ( nil == liststyle ) then if ( "upper-alpha" == group or "lower-alpha" == group or "upper-roman" == group or "lower-roman" == group or "upper-greek" == group or "lower-greek" == group ) then liststyle = group else liststyle = config.default_liststyle end end local params = {} params.class = "refbegin" params.style = z.wikitext.liststyle(liststyle) if ( nil ~= count ) then params.class = params.class .. " references-column-count references-column-count-" .. count params.style = params.style .. " " .. z.wikitext.columncountstyle(count) end if ( nil ~= width ) then params.class = params.class .. " references-column-width" params.style = params.style .. " " .. z.wikitext.columnwidthstyle(width) end local dlopen if ( nil ~= indent ) then dlopen = z.wikitext.OpenHTMLTag({name="dl",params={style="text-indent: -" .. (indentsize or "3.2") .. "em;"}}) else dlopen = "" end return z.wikitext.OpenHTMLTag({name="div",params=params}) .. dlopen end

function refend0(frame, config, args) local indent = args.indent local dlclose if ( nil ~= indent ) then dlclose = "" else dlclose = "" end return dlclose .. " " end

-- This is used by to create DOI links in the style used in citations. function z.doi(frame) local pframe = frame:getParent local id = pframe.args.id or pframe.args[1] or "" return doi(frame, id) end

-- This is used by to create ISSN links in the style used in citations. function z.ISSN(frame) local pframe = frame:getParent local Name = pframe.args[1] or "" return hideinprint(frame, "ISSN .. Name .. " " .. Name .. "") end

-- This is used by templates such as to create the (encoded) anchor name for a Harvard cross-reference hyperlink. function z.SFNID(frame) local pframe = frame:getParent return anchorid(pframe.args) end

-- This is used by templates such as to create the Harvard cross-reference text. function z.Harvard(frame) local pframe = frame:getParent return crossref(frame, pframe.args) end

-- This is used by templates such as to create the actual citation text. function z.citation(frame) local pframe = frame:getParent return citation0(frame, pframe.args) end

-- This is used by templates such as to create the entire cross-reference. function z.sfn(frame) local pframe = frame:getParent local content = crossref(frame, pframe.args) local args = { name = refid(pframe.args) } return mw.text.tag({name = "ref", contents = content, params = args}, frame) end

-- This is used by template. function z.r(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template args.page1 = args.page1 or args.page local text = "" -- This would be shorter using ipairs, but that doesn't work on an arguments table supplied to a template. local index = 1 while args[index] ~= nil do       local arg = args[index] local t = r0(frame, arg, args.group, args["page" .. index]) text = text .. t       index = index + 1 end return text end

-- This is used by template. function z.reflabel(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template local P1 = args[1] or "" local P2 = args[2] or "" local P3 = args[3] or "" local id = nil local contents = "&#91;" .. P2 .. "&#93;" local params = {} params.class="reference" if ( args.noid == nil or args.noid == "" ) then params.id = "ref_" .. P1 .. P3 end return mw.text.tag({name="sup",contents=contents,params=params}) end

-- This is used by template. function z.notelabel(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template local id = args[1] or "" local arrow = args[3] or "" local postscript = args[4] or "" local contents if arrow ~= "" then local sup_arrow = mw.text.tag({name="sup",contents=arrow,params={}}) contents = "" .. sup_arrow .. "" .. postscript if "none" == arrow then arrow = "^" end -- Change this AFTER using it in the ID parameter and the contents. else contents = (args[2] or "") .. postscript end local params = { class="citation wikicite" } if id ~= "" and ( args.noid == nil or args.noid == "" ) then params.id = mw.url.encodeAnchor("endnote_" .. id .. arrow) end return mw.text.tag({name="span",contents=contents,params=params}) end

-- This is used by templates and. function z.reflist(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template return reflist0(frame, config, args) end

-- This is used by template. function z.refbegin(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template return refbegin0(frame, config, args) end

-- This is used by template. function z.refend(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template return refend0(frame, config, args) end

-- This is used by template. function z.efn(frame) local pframe = frame:getParent local config = frame.args -- the arguments passed BY the template, in the wikitext of the template itself local args = pframe.args -- the arguments passed TO the template, in the wikitext that instantiates the template return mw.text.tag({name="ref",contents=(args[1] or ""),params={name=args.name,group=config.default_group}}, frame) end

return z