模块:Citation/CS1

local z = {error_categories = {};error_ids = {};message_tail = {};}-- LOCALfunction is_zh( str )    return not not str:find( '[\128-\255]' )end-- END LOCAL-- Whether variable is set or notfunction is_set( var )return not (var == nil or var == '');end-- First set variable or nil if nonefunction first_set(...)local list = {...};for _, var in pairs(list) doif is_set( var ) thenreturn var;endendend-- Whether needle is in haystackfunction inArray( needle, haystack )if needle == nil thenreturn false;endfor n,v in ipairs( haystack ) doif v == needle thenreturn n;endendreturn false;end--[[Categorize and emit an error message when the citation contains one or more deprecated parameters.  Because deprecated parameters (currently |day=, |month=,|coauthor=, and |coauthors=) aren't related to each other and because these parameters may be concatenated into the variables used by |date= and |author#= (and aliases)details of which parameter caused the error message are not provided.  Only one error message is emitted regardless of the number of deprecated parameters in the citation.]]function deprecated_parameter()if true ~= Page_in_deprecated_cat then-- if we haven't been here before then set a Page_in_deprecated_cat=true;-- sticky flag so that if there are more than one deprecated parameter the category is added only once--table.insert( z.message_tail, { seterror( 'deprecated_params', {error_message}, true ) } );-- add error messagetable.insert( z.message_tail, { seterror( 'deprecated_params', {}, true ) } );-- add error messageendend-- Populates numbered arguments in a message string using an argument table.function substitute( msg, args )--return args and tostring( mw.message.newRawMessage( msg, args ) ) or msg;return args and mw.message.newRawMessage( msg, args ):plain() or msg;end--[[Apply kerning to open the space between the quote mark provided by the Module and a leading or trailing quote mark contained in a |title= or |chapter= parameter's value.This function will positive kern  either single or double quotes:"'Unkerned title with leading and trailing single quote marks'"" 'Kerned title with leading and trailing single quote marks' " (in real life the kerning isn't as wide as this example)]]function kern_quotes (str)local left='<span style="padding-left:0.2em;">%1</span>';-- spacing to use when title contains leading single or double quote marklocal right='<span style="padding-right:0.2em;">%1</span>';-- spacing to use when title contains trailing single or double quote markif  str:match ("^[\"\'][^\']") thenstr = string.gsub( str, "^[\"\']", left, 1 );-- replace (captured) leading single or double quote with left-side <span>endif str:match ("[^\'][\"\']$") thenstr = string.gsub( str, "[\"\']$", right, 1 );-- replace (captured) trailing single or double quote with right-side <span>endreturn str;end-- Wraps a string using a message_list configuration taking one argumentfunction wrap( key, str, lower )if not is_set( str ) thenreturn "";elseif inArray( key, { 'italic-title', 'trans-italic-title' } ) thenstr = safeforitalics( str );endif lower == true thenreturn substitute( cfg.messages[key]:lower(), {str} );elsereturn substitute( cfg.messages[key], {str} );endend--[[Argument wrapper.  This function provides support for argument mapping defined in the configuration file so that multiple namescan be transparently aliased to single internal variable.]]function argument_wrapper( args )local origin = {};return setmetatable({ORIGIN = function( self, k )local dummy = self[k]; --force the variable to be loaded.return origin[k];end},{__index = function ( tbl, k )if origin[k] ~= nil thenreturn nil;endlocal args, list, v = args, cfg.aliases[k];if type( list ) == 'table' thenv, origin[k] = selectone( args, list, 'redundant_parameters' );if origin[k] == nil thenorigin[k] = ''; -- Empty string, not nilendelseif list ~= nil thenv, origin[k] = args[list], list;else-- maybe let through instead of raising an error?-- v, origin[k] = args[k], k;error( cfg.messages['unknown_argument_map'] );end-- Empty strings, not nil;if v == nil thenv = cfg.defaults[k] or '';origin[k] = '';endtbl = rawset( tbl, k, v );return v;end,});end--[[Looks for a parameter's name in the whitelist.Parameters in the whitelist can have three values:true - active, supported parametersfalse - deprecated, supported parametersnil - unsupported parameters]]function validate( name )local name = tostring( name );local state = whitelist.basic_arguments[ name ];-- Normal argumentsif true == state then return true; end-- valid actively supported parameterif false == state thendeprecated_parameter ();-- parameter is deprecated but still supportedreturn true;end-- Arguments with numbers in themname = name:gsub( "%d+", "#" );-- replace digit(s) with # (last25 becomes last#state = whitelist.numbered_arguments[ name ];if true == state then return true; end-- valid actively supported parameterif false == state thendeprecated_parameter ();-- parameter is deprecated but still supportedreturn true;endreturn false;-- Not supported because not found or name is set to nilend-- Formats a comment for error trappingfunction errorcomment( content, hidden )return wrap( hidden and 'hidden-error' or 'visible-error', content );end--[[Sets an error condition and returns the appropriate error message.  The actual placementof the error message in the output is the responsibility of the calling function.]]function seterror( error_id, arguments, raw, prefix, suffix )local error_state = cfg.error_conditions[ error_id ];prefix = prefix or "";suffix = suffix or "";if error_state == nil thenerror( cfg.messages['undefined_error'] );elseif is_set( error_state.category ) thentable.insert( z.error_categories, error_state.category );endlocal message = substitute( error_state.message, arguments );message = message .. " ([[" .. cfg.messages['help page link'] .. "#" .. error_state.anchor .. "|" ..cfg.messages['help page label'] .. "]])";z.error_ids[ error_id ] = true;if inArray( error_id, { 'bare_url_missing_title', 'trans_missing_title' } )and z.error_ids['citation_missing_title'] thenreturn '', false;endmessage = table.concat({ prefix, message, suffix });if raw == true thenreturn message, error_state.hidden;endreturn errorcomment( message, error_state.hidden );end-- Formats a wiki style external linkfunction externallinkid(options)local url_string = options.id;if options.encode == true or options.encode == nil thenurl_string = mw.uri.encode( url_string );endreturn mw.ustring.format( '[[%s|%s]]%s[%s%s%s %s]',options.link, options.label, options.separator or "&nbsp;",options.prefix, url_string, options.suffix or "",mw.text.nowiki(options.id));end-- Formats a wiki style internal linkfunction internallinkid(options)return mw.ustring.format( '[[%s|%s]]%s[[%s%s%s|%s]]',options.link, options.label, options.separator or "&nbsp;",options.prefix, options.id, options.suffix or "",mw.text.nowiki(options.id));end-- Format an external link with error checkingfunction externallink( URL, label, source )local error_str = "";if not is_set( label ) thenlabel = URL;if is_set( source ) thenerror_str = seterror( 'bare_url_missing_title', { wrap( 'parameter', source ) }, false, " " );elseerror( cfg.messages["bare_url_no_origin"] );endendif not checkurl( URL ) thenerror_str = seterror( 'bad_url', {}, false, " " ) .. error_str;endreturn table.concat({ "[", URL, " ", safeforurl( label ), "]", error_str });end-- Formats a link to Amazonfunction amazon(id, domain)if not is_set(domain) then domain = "com"elseif ( "jp" == domain or "uk" == domain ) thendomain = "co." .. domainendlocal handler = cfg.id_handlers['ASIN'];return externallinkid({link = handler.link,label=handler.label , prefix="//www.amazon."..domain.."/dp/",id=id,encode=handler.encode, separator = handler.separator})end--[[--------------------------< A R X I V >-------------------------------------------------------------------- See: http://arxiv.org/help/arxiv_identifier format and error check arXiv identifier.  There are three valid forms of the identifier:the first form, valid only between date codes 9108 and 0703 is:arXiv:<archive>.<class>/<date code><number><version>where:<archive> is a string of alpha characters - may be hyphenated; no other punctuation<class> is a string of alpha characters - may be hyphenated; no other punctuation<date code> is four digits in the form YYMM where YY is the last two digits of the four-digit year and MM is the month number January = 01first digit of YY for this form can only 9 and 0<number> is a three-digit number<version> is a 1 or more digit number preceded with a lowercase v; no spaces (undocumented) the second form, valid from April 2007 through December 2014 is:arXiv:<date code>.<number><version>where:<date code> is four digits in the form YYMM where YY is the last two digits of the four-digit year and MM is the month number January = 01<number> is a four-digit number<version> is a 1 or more digit number preceded with a lowercase v; no spaces the third form, valid from January 2015 is:arXiv:<date code>.<number><version>where:<date code> and <version> are as defined for 0704-1412<number> is a five-digit number]] function arxiv (id, class)local handler = cfg.id_handlers['ARXIV'];local year, month, version;local err_cat = '';local text; if id:match("^%a[%a%.%-]+/[90]%d[01]%d%d%d%d$") or id:match("^%a[%a%.%-]+/[90]%d[01]%d%d%d%dv%d+$") then-- test for the 9108-0703 format w/ & w/o versionyear, month = id:match("^%a[%a%.%-]+/([90]%d)([01]%d)%d%d%d[v%d]*$");year = tonumber(year);month = tonumber(month);if ((not (90 < year or 8 > year)) or (1 > month or 12 < month)) or-- if invalid year or invalid month((91 == year and 7 > month) or (7 == year and 3 < month)) then-- if years ok, are starting and ending months ok?err_cat = ' ' .. set_error( 'bad_arxiv' );-- set error messageendelseif id:match("^%d%d[01]%d%.%d%d%d%d$") or id:match("^%d%d[01]%d%.%d%d%d%dv%d+$") then-- test for the 0704-1412 w/ & w/o versionyear, month = id:match("^(%d%d)([01]%d)%.%d%d%d%d[v%d]*$");year = tonumber(year);month = tonumber(month);if ((7 > year) or (14 < year) or (1 > month or 12 < month)) or-- is year invalid or is month invalid? (doesn't test for future years)((7 == year) and (4 > month)) then --or-- when year is 07, is month invalid (before April)?err_cat = ' ' .. set_error( 'bad_arxiv' );-- set error messageendelseif id:match("^%d%d[01]%d%.%d%d%d%d%d$") or id:match("^%d%d[01]%d%.%d%d%d%d%dv%d+$") then-- test for the 1501- format w/ & w/o versionyear, month = id:match("^(%d%d)([01]%d)%.%d%d%d%d%d[v%d]*$");year = tonumber(year);month = tonumber(month);if ((15 > year) or (1 > month or 12 < month)) then-- is year invalid or is month invalid? (doesn't test for future years)err_cat = ' ' .. set_error( 'bad_arxiv' );-- set error messageendelseerr_cat = ' ' .. set_error( 'bad_arxiv' );-- arXiv id doesn't match any formatend text = external_link_id({link = handler.link, label = handler.label,prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat; if is_set (class) thenclass = ' [[' .. '//arxiv.org/archive/' .. class .. ' ' .. class .. ']]';-- external link within square brackets, not wikilinkelseclass = '';-- empty string for concatenationend return text .. class;end--[[lccn normalization (http://www.loc.gov/marc/lccn-namespace.html#normalization)1. Remove all blanks.2. If there is a forward slash (/) in the string, remove it, and remove all characters to the right of the forward slash.3. If there is a hyphen in the string:a. Remove it.b. Inspect the substring following (to the right of) the (removed) hyphen. Then (and assuming that steps 1 and 2 have been carried out):1. All these characters should be digits, and there should be six or less. (not done in this function)2. If the length of the substring is less than 6, left-fill the substring with zeroes until the length is six.Returns a normalized lccn for lccn() to validate.  There is no error checking (step 3.b.1) performed in this function.]]function normalize_lccn (lccn)lccn = lccn:gsub ("%s", "");-- 1. strip whitespaceif nil ~= string.find (lccn,'/') thenlccn = lccn:match ("(.-)/");-- 2. remove forward slash and all character to the right of itendlocal prefixlocal suffixprefix, suffix = lccn:match ("(.+)%-(.+)");-- 3.a remove hyphen by splitting the string into prefix and suffixif nil ~= suffix then-- if there was a hyphensuffix=string.rep("0", 6-string.len (suffix)) .. suffix;-- 3.b.2 left fill the suffix with 0s if suffix length less than 6lccn=prefix..suffix;-- reassemble the lccnendreturn lccn;end--[[Format LCCN link and do simple error checking.  LCCN is a character string 8-12 characters long. The length of the LCCN dictates the character type of the first 1-3 characters; therightmost eight are always digits. http://info-uri.info/registry/OAIHandler?verb=GetRecord&metadataPrefix=reg&identifier=info:lccn/length = 8 then all digitslength = 9 then lccn[1] is alphalength = 10 then lccn[1] and lccn[2] are both alpha or both digitslength = 11 then lccn[1] is alpha, lccn[2] and lccn[3] are both alpha or both digitslength = 12 then lccn[1] and lccn[2] are both alpha]]function lccn(lccn)local handler = cfg.id_handlers['LCCN'];local err_cat =  '';-- presume that LCCN is validlocal id = lccn;-- local copy of the lccnid = normalize_lccn (id);-- get canonical form (no whitespace, hyphens, forward slashes)local len = id:len();-- get the length of the lccnif 8 == len thenif id:match("[^%d]") then-- if LCCN has anything but digits (nil if only digits)err_cat = ' ' .. seterror( 'bad_lccn' );-- set an error messageendelseif 9 == len then-- LCCN should be addddddddif nil == id:match("%a%d%d%d%d%d%d%d%d") then-- does it match our pattern?err_cat = ' ' .. seterror( 'bad_lccn' );-- set an error messageendelseif 10 == len then-- LCCN should be aadddddddd or ddddddddddif id:match("[^%d]") then-- if LCCN has anything but digits (nil if only digits) ...if nil == id:match("^%a%a%d%d%d%d%d%d%d%d") then-- ... see if it matches our patternerr_cat = ' ' .. seterror( 'bad_lccn' );-- no match, set an error messageendendelseif 11 == len then-- LCCN should be aaadddddddd or addddddddddif not (id:match("^%a%a%a%d%d%d%d%d%d%d%d") or id:match("^%a%d%d%d%d%d%d%d%d%d%d")) then-- see if it matches one of our patternserr_cat = ' ' .. seterror( 'bad_lccn' );-- no match, set an error messageendelseif 12 == len then-- LCCN should be aaddddddddddif not id:match("^%a%a%d%d%d%d%d%d%d%d%d%d") then-- see if it matches our patternerr_cat = ' ' .. seterror( 'bad_lccn' );-- no match, set an error messageendelseerr_cat = ' ' .. seterror( 'bad_lccn' );-- wrong length, set an error messageendif not is_set (err_cat) and nil ~= lccn:find ('%s') thenerr_cat = ' ' .. seterror( 'bad_lccn' );-- lccn contains a space, set an error messageendreturn externallinkid({link = handler.link, label = handler.label,prefix=handler.prefix,id=lccn,separator=handler.separator, encode=handler.encode}) .. err_cat;end--[[Format PMID and do simple error checking.  PMIDs are sequential numbers beginning at 1 and counting up.  This code checks the PMID to see that itcontains only digits and is less than test_limit; the value in local variable test_limit will need to be updated periodically as more PMIDs are issued.]]function pmid(id)local test_limit = 30000000;-- update this value as PMIDs approachlocal handler = cfg.id_handlers['PMID'];local err_cat =  '';-- presume that PMID is validif id:match("[^%d]") then-- if PMID has anything but digitserr_cat = ' ' .. seterror( 'bad_pmid' );-- set an error messageelse-- PMID is only digitslocal id_num = tonumber(id);-- convert id to a number for range testingif 1 > id_num or test_limit < id_num then-- if PMID is outside test limit boundarieserr_cat = ' ' .. seterror( 'bad_pmid' );-- set an error messageendendreturn externallinkid({link = handler.link, label = handler.label,prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;end--[[Determines if a PMC identifier's online version is embargoed. Compares the date in |embargo= against today's date.  If embargo date isin the future, returns true; otherwise, returns false because the embargo has expired or |embargo= not set in this cite.]]function is_embargoed(embargo)if is_set(embargo) thenlocal lang = mw.getContentLanguage();local good1, embargo_date, good2, todays_date;good1, embargo_date = pcall( lang.formatDate, lang, 'U', embargo );good2, todays_date = pcall( lang.formatDate, lang, 'U' );if good1 and good2 and tonumber( embargo_date ) >= tonumber( todays_date ) then--is embargo date is in the future?return true;-- still embargoedendendreturn false;-- embargo expired or |embargo= not setend--[[Format a PMC, do simple error checking, and check for embargoed articles.The embargo parameter takes a date for a value. If the embargo date is in the futurethe PMC identifier will not be linked to the article.  If the embargo specifies a date in the past, or if it is empty or omitted, thenthe PMC identifier is linked to the article through the link at cfg.id_handlers['PMC'].prefix.PMCs are sequential numbers beginning at 1 and counting up.  This code checks the PMC to see that it contains only digits and is lessthan test_limit; the value in local variable test_limit will need to be updated periodically as more PMCs are issued.]]function pmc(id, embargo)local test_limit = 5000000;-- update this value as PMCs approachlocal handler = cfg.id_handlers['PMC'];local err_cat =  '';-- presume that PMC is validlocal text;if id:match("[^%d]") then-- if PMC has anything but digitserr_cat = ' ' .. seterror( 'bad_pmc' );-- set an error messageelse-- PMC is only digitslocal id_num = tonumber(id);-- convert id to a number for range testingif 1 > id_num or test_limit < id_num then-- if PMC is outside test limit boundarieserr_cat = ' ' .. seterror( 'bad_pmc' );-- set an error messageendendif is_embargoed(embargo) thentext="[[" .. handler.link .. "|" .. handler.label .. "]]:" .. handler.separator .. id .. err_cat;--still embargoed so no external linkelsetext = externallinkid({link = handler.link, label = handler.label,--no embargo date, ok to link to articleprefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;endreturn text;end-- Formats a DOI and checks for DOI errors.-- DOI names contain two parts: prefix and suffix separated by a forward slash.--  Prefix: directory indicator '10.' followed by a registrant code--  Suffix: character string of any length chosen by the registrant-- This function checks a DOI name for: prefix/suffix.  If the doi name contains spaces or endashes,-- or, if it ends with a period or a comma, this function will emit a bad_doi error message.-- DOI names are case-insensitive and can incorporate any printable Unicode characters so the test for spaces, endash,-- and terminal punctuation may not be technically correct but it appears, that in practice these characters are rarely if ever used in doi names.function doi(id, inactive)local cat = ""local handler = cfg.id_handlers['DOI'];local text;if is_set(inactive) thenlocal inactive_year = inactive:match("%d%d%d%d") or '';-- try to get the year portion from the inactive datetext = "[[" .. handler.link .. "|" .. handler.label .. "]]:" .. id;if is_set(inactive_year) thentable.insert( z.error_categories, "自" .. inactive_year .. "年DOI码失效的页面");elsetable.insert( z.error_categories, "DOI码失效的页面" );-- when inactive doesn't contain a recognizable yearendinactive = " (" .. cfg.messages['inactive'] .. " " .. inactive .. ")" else text = externallinkid({link = handler.link, label = handler.label,prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})inactive = "" endif nil == id:match("^10%.[^%s–]-/[^%s–]-[^%.,]$") then-- doi must begin with '10.', must contain a fwd slash, must not contain spaces or endashes, and must not end with period or commacat = ' ' .. seterror( 'bad_doi' );endreturn text .. inactive .. cat end-- Formats an OpenLibrary link, and checks for associated errors.function openlibrary(id)local code = id:sub(-1,-1)local handler = cfg.id_handlers['OL'];if ( code == "A" ) thenreturn externallinkid({link=handler.link, label=handler.label,prefix="http://openlibrary.org/authors/OL",id=id, separator=handler.separator,encode = handler.encode})elseif ( code == "M" ) thenreturn externallinkid({link=handler.link, label=handler.label,prefix="http://openlibrary.org/books/OL",id=id, separator=handler.separator,encode = handler.encode})elseif ( code == "W" ) thenreturn externallinkid({link=handler.link, label=handler.label,prefix= "http://openlibrary.org/works/OL",id=id, separator=handler.separator,encode = handler.encode})elsereturn externallinkid({link=handler.link, label=handler.label,prefix= "http://openlibrary.org/OL",id=id, separator=handler.separator,encode = handler.encode}) .. ' ' .. seterror( 'bad_ol' );endend--[[Validate and format an issn.  This code fixes the case where an editor has included an ISSN in the citation but has separated the two groups of fourdigits with a space.  When that condition occurred, the resulting link looked like this:|issn=0819 4327 gives: [http://www.worldcat.org/issn/0819 4327 0819 4327]  -- can't have spaces in an external linkThis code now prevents that by inserting a hyphen at the issn midpoint.  It also validates the issn for length and makes sure that the checkdigit agreeswith the calculated value.  Incorrect length (8 digits), characters other than 0-9 and X, or checkdigit / calculated value mismatch will all cause a check issnerror message.  The issn is always displayed with a hyphen, even if the issn was given as a single group of 8 digits.]]function issn(id)local issn_copy = id;-- save a copy of unadulterated issn; use this version for display if issn does not validatelocal handler = cfg.id_handlers['ISSN'];local text;local valid_issn = true;id=id:gsub( "[%s-–]", "" );-- strip spaces, hyphens, and endashes from the issnif 8 ~= id:len() or nil == id:match( "^%d*X?$" ) then-- validate the issn: 8 digits long, containing only 0-9 or X in the last positionvalid_issn=false;-- wrong length or improper characterelsevalid_issn=is_valid_isxn(id, 8);-- validate issnendif true == valid_issn thenid = string.sub( id, 1, 4 ) .. "-" .. string.sub( id, 5 );-- if valid, display correctly formatted versionelseid = issn_copy;-- if not valid, use the show the invalid issn with error messageendtext = externallinkid({link = handler.link, label = handler.label,prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) if false == valid_issn thentext = text .. ' ' .. seterror( 'bad_issn' )-- add an error message if the issn is invalidend return textend--[[This function sets default title types (equivalent to the citation including |type=<default value>) for those citations that have defaults.Also handles the special case where it is desirable to omit the title type from the rendered citation (|type=none).]]function set_titletype(cite_class, title_type)if is_set(title_type) thenif "none" == title_type thentitle_type = "";-- if |type=none then type parameter not displayedendreturn title_type;-- if |type= has been set to any other value use that valueendif "AV-media-notes" == cite_class or "DVD-notes" == cite_class then-- if this citation is cite AV media notes or cite DVD notesreturn "Media notes";-- display AV media notes / DVD media notes annotationelseif "podcast" == cite_class then-- if this citation is cite podcastreturn "Podcast";-- display podcast annotationelseif "pressrelease" == cite_class then-- if this citation is cite press releasereturn "Press release";-- display press release annotationelseif "techreport" == cite_class then-- if this citation is cite techreportreturn "Technical report";-- display techreport annotationelseif "thesis" == cite_class then-- if this citation is cite thesis (degree option handled after this function returns)return "Thesis";-- display simple thesis annotation (without |degree= modification)endend--[[Determines whether a URL string is validAt present the only check is whether the string appears to be prefixed with a URI scheme.  It is not determined whether the URI scheme is valid or whether the URL is otherwise well formed.]]function checkurl( url_str )-- Protocol-relative or URL schemereturn url_str:sub(1,2) == "//" or url_str:match( "^[^/]*:" ) ~= nil;end-- Removes irrelevant text and dashes from ISBN number-- Similar to that used for Special:BookSourcesfunction cleanisbn( isbn_str )return isbn_str:gsub( "[^-0-9X]", "" );end-- Extract page numbers from external wikilinks in any of the |page=, |pages=, or |at= parameters for use in COinS.--TODO: Fix so this code supports urls like this:--http://www.history.navy.mil/download/va125153.pdf#page=13 %w/:\.function get_coins_pages (pages)if not is_set (pages) then return pages; end-- if no page numbers then we're donewhile true dopattern = pages:match("%[(%w*:?//[^ ]+%s+)[%w%d].*%]");-- pattern is the opening bracket, the url and following space(s): "[url "if nil == pattern then break; end-- no more urlspattern = pattern:gsub("([%^%$%(%)%%%.%[%]%*%+%-%?])", "%%%1");-- pattern is not a literal string; escape lua's magic pattern characterspages = pages:gsub(pattern, "");-- remove as many instances of pattern as possibleendpages = pages:gsub("[%[%]]", "");-- remove the bracketspages = pages:gsub("–", "-" );-- replace endashes with hyphenspages = pages:gsub("&%w+;", "-" );-- and replace html entities (&ndash; etc.) with hyphens; do we need to replace numerical entities like &#32; and the like?return pages;end--[[ISBN-10 and ISSN validator code calculates checksum across all isbn/issn digits including the check digit. ISBN-13 is checked in checkisbn().If the number is valid the result will be 0. Before calling this function, issbn/issn must be checked for length and stripped of dashes,spaces and other non-isxn characters.]]function is_valid_isxn (isxn_str, len)local temp = 0;isxn_str = { isxn_str:byte(1, len) };-- make a table of byteslen = len+1;-- adjust to be a loop counterfor i, v in ipairs( isxn_str ) do-- loop through all of the bytes and calculate the checksumif v == string.byte( "X" ) then-- if checkdigit is Xtemp = temp + 10*( len - i );-- it represents 10 decimalelsetemp = temp + tonumber( string.char(v) )*(len-i);endendreturn temp % 11 == 0;-- returns true if calculation result is zeroend-- Determines whether an ISBN string is validfunction checkisbn( isbn_str )if nil ~= isbn_str:match("[^%s-0-9X]") then return false; end-- fail if isbn_str contains anything but digits, hyphens, or the uppercase Xisbn_str = isbn_str:gsub( "-", "" ):gsub( " ", "" );-- remove hyphens and spaceslocal len = isbn_str:len(); if len ~= 10 and len ~= 13 thenreturn false;endif len == 10 thenif isbn_str:match( "^%d*X?$" ) == nil then return false; endreturn is_valid_isxn(isbn_str, 10);elselocal temp = 0;if isbn_str:match( "^97[89]%d*$" ) == nil then return false; end-- isbn13 begins with 978 or 979isbn_str = { isbn_str:byte(1, len) };for i, v in ipairs( isbn_str ) dotemp = temp + (3 - 2*(i % 2)) * tonumber( string.char(v) );endreturn temp % 10 == 0;endend-- Gets the display text for a wikilink like [[A|B]] or [[B]] gives Bfunction removewikilink( str )return (str:gsub( "%[%[([^%[%]]*)%]%]", function(l)return l:gsub( "^[^|]*|(.*)$", "%1" ):gsub("^%s*(.-)%s*$", "%1");end));end-- Escape sequences for content that will be used for URL descriptionsfunction safeforurl( str )do return str end -- LOCAL HACK https://en.wikipedia.org/w/index.php?title=Module_talk:Citation/CS1&diff=552318417&oldid=552202448if str:match( "%[%[.-%]%]" ) ~= nil then table.insert( z.message_tail, { seterror( 'wikilink_in_url', {}, true ) } );endreturn str:gsub( '[%[%]\n]', {['['] = '&#91;',[']'] = '&#93;',['\n'] = ' ' } );end-- Converts a hyphen to a dashfunction hyphentodash( str )if not is_set(str) or str:match( "[%[%]{}<>]" ) ~= nil thenreturn str;endreturn str:gsub( '-', '–' );end-- Protects a string that will be wrapped in wiki italic markup '' ... ''function safeforitalics( str )--[[ Note: We cannot use <i> for italics, as the expected behavior foritalics specified by ''...'' in the title is that they will be inverted(i.e. unitalicized) in the resulting references.  In addition, <i> and ''tend to interact poorly under Mediawiki's HTML tidy. ]]if not is_set(str) thenreturn str;elseif str:sub(1,1) == "'" then str = "<span />" .. str; endif str:sub(-1,-1) == "'" then str = str .. "<span />"; end-- Remove newlines as they break italics.return str:gsub( '\n', ' ' );endend--[[Joins a sequence of strings together while checking for duplicate separation characters.TODO: safejoin() has a flaw where it won't remove the duplicate character from a |title= / |url= combination.This is because by the time we get here, |title=http://somesite.com and |title=Document Title. have been combined:[http://somesite.com and ''Document Title.'']so that now, the last character is not sepc but is ] (unless sepc == ']' which breaks the external link)]]function safejoin( tbl, duplicate_char )--[[Note: we use string functions here, rather than ustring functions.This has considerably faster performance and should work correctly as long as the duplicate_char is strict ASCII.  The stringsin tbl may be ASCII or UTF8.]]local str = '';local comp = '';local end_chr = '';local trim;for _, value in ipairs( tbl ) doif value == nil then value = ''; endif str == '' thenstr = value;elseif value ~= '' thenif value:sub(1,1) == '<' then-- Special case of values enclosed in spans and other markup.comp = value:gsub( "%b<>", "" );elsecomp = value;endif comp:sub(1,1) == duplicate_char thentrim = false;end_chr = str:sub(-1,-1);-- str = str .. "<HERE(enchr=" .. end_chr.. ")"if end_chr == duplicate_char thenstr = str:sub(1,-2);elseif end_chr == "'" thenif str:sub(-3,-1) == duplicate_char .. "''" thenstr = str:sub(1, -4) .. "''";elseif str:sub(-5,-1) == duplicate_char .. "]]''" thentrim = true;elseif str:sub(-4,-1) == duplicate_char .. "]''" thentrim = true;endelseif end_chr == "]" thenif str:sub(-3,-1) == duplicate_char .. "]]" thentrim = true;elseif str:sub(-2,-1) == duplicate_char .. "]" thentrim = true;endelseif end_chr == " " thenif str:sub(-2,-1) == duplicate_char .. " " thenstr = str:sub(1,-3);endendif trim thenif value ~= comp then local dup2 = duplicate_char;if dup2:match( "%A" ) then dup2 = "%" .. dup2; endvalue = value:gsub( "(%b<>)" .. dup2, "%1", 1 )elsevalue = value:sub( 2, -1 );endendendstr = str .. value;endendreturn str;end  -- Attempts to convert names to initials.function reducetoinitials(first)local initials = {}local i = 0;-- counter for number of initialsfor word in string.gmatch(first, "%S+") dotable.insert(initials, string.sub(word,1,1))-- Vancouver format does not include full stops.i = i + 1;-- bump the counter if 2 <= i then break; end-- only two initials allowed in Vancouver system; if 2, quitendreturn table.concat(initials)-- Vancouver format does not include spaces.end-- Formats a list of people (e.g. authors / editors) function listpeople(control, people)local sep = control.sep;local namesep = control.nameseplocal format = control.formatlocal maximum = control.maximumlocal lastauthoramp = control.lastauthoramp;local text = {}local etal = false;if sep:sub(-1,-1) ~= " " then sep = sep .. " " endif maximum ~= nil and maximum < 1 then return "", 0; endfor i,person in ipairs(people) doif is_set(person.last) thenlocal mask = person.masklocal onelocal sep_one = sep;if maximum ~= nil and i > maximum thenetal = true;break;elseif (mask ~= nil) thenlocal n = tonumber(mask)if (n ~= nil) thenone = string.rep("&mdash;",n)elseone = mask;sep_one = " ";endelseone = person.lastlocal first = person.firstif is_set(first) then if ( "vanc" == format ) then first = reducetoinitials(first) endone = one .. namesep .. first endif is_set(person.link) then one = "[[" .. person.link .. "|" .. one .. "]]" endif is_set(person.link) and nil ~= person.link:find("//") then one = one .. " " .. seterror( 'bad_authorlink' ) end-- check for url in author link;endtable.insert( text, one )table.insert( text, sep_one )endendlocal count = #text / 2;if count > 0 then if count > 1 and is_set(lastauthoramp) and not etal thentext[#text-2] = " & ";endtext[#text] = nil; endlocal result = table.concat(text) -- construct listif etal then local etal_text = is_zh( result ) and cfg.messages['et al'] or '<i>et al</i>.'; -- LOCALresult = result .. " " .. etal_text;end-- if necessary wrap result in <span> tag to format in Small Capsif ( "scap" == format ) then result = '<span class="smallcaps" style="font-variant:small-caps">' .. result .. '</span>';end return result, countend-- Generates a CITEREF anchor ID.function anchorid( options )return "CITEREF" .. table.concat( options );end--[[Gets name list from the input argumentsSearches through args in sequential order to find |lastn= and |firstn= parameters (or their aliases), and their matching link and mask parameters.Stops searching when both |lastn= and |firstn= are not found in args after two sequential attempts: found |last1=, |last2=, and |last3= but doesn'tfind |last4= and |last5= then the search is done.This function emits an error message when there is a |firstn= without a matching |lastn=.  When there are 'holes' in the list of last names, |last1= and |last3=are present but |last2= is missing, an error message is emitted. |lastn= is not required to have a matching |firstn=.]]--Original functionfunction extractnames(args, list_name)    local names = {};    local i = 1;    local last;     while true do        last = selectone( args, cfg.aliases[list_name .. '-Last'], 'redundant_parameters', i );        if not is_set(last) then            -- just in case someone passed in an empty parameter            break;        end        names[i] = {            last = last,            first = selectone( args, cfg.aliases[list_name .. '-First'], 'redundant_parameters', i ),            link = selectone( args, cfg.aliases[list_name .. '-Link'], 'redundant_parameters', i ),            mask = selectone( args, cfg.aliases[list_name .. '-Mask'], 'redundant_parameters', i )        };        i = i + 1;    end    return names;end--[[ Broken.  Editor CITEREF IDs are broken by this code (no editor list). Author CITEREF ID render correctlyfunction extractnames(args, list_name)local names = {};-- table of nameslocal i = 1;-- loop counter/indexerlocal count = 0;-- used to count the number of times we haven't found a |last= (or alias for authors, |editor-last or alias for editors)local err_msg_list_name = list_name:match ("(%w+)List") .. 's list';-- modify AuthorList or EditorList for use in error messages if necessarywhile true donames[i] =-- search through args for name components beginning at 1{last = selectone( args, cfg.aliases[list_name .. '-Last'], 'redundant_parameters', i ),first = selectone( args, cfg.aliases[list_name .. '-First'], 'redundant_parameters', i ),link = selectone( args, cfg.aliases[list_name .. '-Link'], 'redundant_parameters', i ),mask = selectone( args, cfg.aliases[list_name .. '-Mask'], 'redundant_parameters', i )};if names[i].first and not names[i].last then-- if there is a firstn without a matching lastnnames[i].first = nil;-- set first to nil so we don't confuse the implicit et al message codetable.insert( z.message_tail, { seterror( 'first_missing_last', {err_msg_list_name, i}, true ) } );-- add this error messagebreak;-- and done because lastn not foundelseif not names[i].first and not names[i].last then-- if both firstn and lastn aren't found, are we done?count = count + 1;-- number of times we haven't found last and firstif 2 == count then-- two missing names and we give upbreak;-- normal exit or there is a two-name hole in the list; can't tell whichendelse-- last with or without a firstif 1 == count then-- if the previous name was missingtable.insert( z.message_tail, { seterror( 'missing_name', {err_msg_list_name, i-1}, true ) } );-- add this error messageendcount = 0;-- reset the counter, we're looking for two consecutive missing namesendi = i + 1;-- bump to the next nameendreturn names;-- all done, return our list of namesend]]-- Populates ID table from arguments using configuration settingsfunction extractids( args )local id_list = {};for k, v in pairs( cfg.id_handlers ) dov = selectone( args, v.parameters, 'redundant_parameters' );if is_set(v) then id_list[k] = v; endendreturn id_list;end-- Takes a table of IDs and turns it into a table of formatted ID outputs.function buildidlist( id_list, options )local new_list, handler = {};function fallback(k) return { __index = function(t,i) return cfg.id_handlers[k][i] end } end;for k, v in pairs( id_list ) do-- fallback to read-only cfghandler = setmetatable( { ['id'] = v }, fallback(k) );if handler.mode == 'external' thentable.insert( new_list, {handler.label, externallinkid( handler ) } );elseif handler.mode == 'internal' thentable.insert( new_list, {handler.label, internallinkid( handler ) } );elseif handler.mode ~= 'manual' thenerror( cfg.messages['unknown_ID_mode'] );elseif k == 'DOI' thentable.insert( new_list, {handler.label, doi( v, options.DoiBroken ) } );elseif k == 'ARXIV' thentable.insert( new_list, {handler.label, arxiv( v ) } ); elseif k == 'ASIN' thentable.insert( new_list, {handler.label, amazon( v, options.ASINTLD ) } ); elseif k == 'LCCN' thentable.insert( new_list, {handler.label, lccn( v ) } );elseif k == 'OL' thentable.insert( new_list, {handler.label, openlibrary( v ) } );elseif k == 'PMC' thentable.insert( new_list, {handler.label, pmc( v, options.Embargo ) } );elseif k == 'PMID' thentable.insert( new_list, {handler.label, pmid( v ) } );elseif k == 'ISSN' thentable.insert( new_list, {handler.label, issn( v ) } );elseif k == 'ISBN' thenlocal ISBN = internallinkid( handler );if not checkisbn( v ) and not is_set(options.IgnoreISBN) thenISBN = ISBN .. seterror( 'bad_isbn', {}, false, " ", "" );endtable.insert( new_list, {handler.label, ISBN } );elseerror( cfg.messages['unknown_manual_ID'] );endendfunction comp( a, b )-- used in following table.sort()return a[1] < b[1];endtable.sort( new_list, comp );for k, v in ipairs( new_list ) donew_list[k] = v[2];endreturn new_list;end  -- Chooses one matching parameter from a list of parameters to consider-- Generates an error if more than one match is present.function selectone( args, possible, error_condition, index )local value = nil;local selected = '';local error_list = {};if index ~= nil then index = tostring(index); end-- Handle special case of "#" replaced by empty stringif index == '1' thenfor _, v in ipairs( possible ) dov = v:gsub( "#", "" );if is_set(args[v]) thenif value ~= nil and selected ~= v thentable.insert( error_list, v );elsevalue = args[v];selected = v;endendendendfor _, v in ipairs( possible ) doif index ~= nil thenv = v:gsub( "#", index );endif is_set(args[v]) thenif value ~= nil and selected ~=  v thentable.insert( error_list, v );elsevalue = args[v];selected = v;endendendif #error_list > 0 thenlocal error_str = "";for _, k in ipairs( error_list ) doif error_str ~= "" then error_str = error_str .. cfg.messages['parameter-separator'] enderror_str = error_str .. wrap( 'parameter', k );endif #error_list > 1 thenerror_str = error_str .. cfg.messages['parameter-final-separator'];elseerror_str = error_str .. cfg.messages['parameter-pair-separator'];enderror_str = error_str .. wrap( 'parameter', selected );table.insert( z.message_tail, { seterror( error_condition, {error_str}, true ) } );endreturn value, selected;end-- COinS metadata (see <http://ocoins.info/>) allows automated tools to parse-- the citation information.function COinS(data)if 'table' ~= type(data) or nil == next(data) thenreturn '';endlocal ctx_ver = "Z39.88-2004";-- treat table strictly as an array with only set values.local OCinSoutput = setmetatable( {}, {__newindex = function(self, key, value)if is_set(value) thenrawset( self, #self+1, table.concat{ key, '=', mw.uri.encode( removewikilink( value ) ) } );endend});if is_set(data.Chapter) thenOCinSoutput.rft_val_fmt = "info:ofi/fmt:kev:mtx:book";OCinSoutput["rft.genre"] = "bookitem";OCinSoutput["rft.btitle"] = data.Chapter;OCinSoutput["rft.atitle"] = data.Title;elseif is_set(data.Periodical) thenOCinSoutput.rft_val_fmt = "info:ofi/fmt:kev:mtx:journal";OCinSoutput["rft.genre"] = "article";OCinSoutput["rft.jtitle"] = data.Periodical;OCinSoutput["rft.atitle"] = data.Title;elseOCinSoutput.rft_val_fmt = "info:ofi/fmt:kev:mtx:book";OCinSoutput["rft.genre"] = "book"OCinSoutput["rft.btitle"] = data.Title;endOCinSoutput["rft.place"] = data.PublicationPlace;OCinSoutput["rft.date"] = data.Date;OCinSoutput["rft.series"] = data.Series;OCinSoutput["rft.volume"] = data.Volume;OCinSoutput["rft.issue"] = data.Issue;OCinSoutput["rft.pages"] = data.Pages;OCinSoutput["rft.edition"] = data.Edition;OCinSoutput["rft.pub"] = data.PublisherName;for k, v in pairs( data.ID_list ) dolocal id, value = cfg.id_handlers[k].COinS;if k == 'ISBN' then value = cleanisbn( v ); else value = v; endif string.sub( id or "", 1, 4 ) == 'info' thenOCinSoutput["rft_id"] = table.concat{ id, "/", v };elseOCinSoutput[ id ] = value;endendlocal last, first;for k, v in ipairs( data.Authors ) dolast, first = v.last, v.first;if k == 1 thenif is_set(last) thenOCinSoutput["rft.aulast"] = last;endif is_set(first) then OCinSoutput["rft.aufirst"] = first;endendif is_set(last) and is_set(first) thenOCinSoutput["rft.au"] = table.concat{ last, ", ", first };elseif is_set(last) thenOCinSoutput["rft.au"] = last;endendOCinSoutput.rft_id = data.URL;OCinSoutput.rfr_id = table.concat{ "info:sid/", mw.site.server:match( "[^/]*$" ), ":", data.RawPage };OCinSoutput = setmetatable( OCinSoutput, nil );-- sort with version string always first, and combine.table.sort( OCinSoutput );table.insert( OCinSoutput, 1, "ctx_ver=" .. ctx_ver );  -- such as "Z39.88-2004"return table.concat(OCinSoutput, "&");end--[[This is the main function doing the majority of the citationformatting.]]function citation0( config, args, frame ) -- LOCAL--[[ Load Input ParametersThe argument_wrapper facilitates the mapping of multiplealiases to single internal variable.]]local A = argument_wrapper( args );local i local PPrefix = A['PPrefix']local PPPrefix = A['PPPrefix']if is_set( A['NoPP'] ) then PPPrefix = "" PPrefix = "" end-- LOCALlocal PSuffix = A['PSuffix']local PPSuffix = A['PPSuffix']if ( nil ~= A['NoPP'] ) then PPSuffix = "" PSuffix = "" end-- END LOCAL-- Pick out the relevant fields from the arguments.  Different citation templates-- define different field names for the same underlying things.local Authors = A['Authors'];local a = extractnames( args, 'AuthorList' );local Coauthors = A['Coauthors'];local Others = A['Others'];local Editors = A['Editors'];local e = extractnames( args, 'EditorList' );local Year = A['Year'];local PublicationDate = A['PublicationDate'];local OrigYear = A['OrigYear'];local Date = A['Date'];local LayDate = A['LayDate'];------------------------------------------------- Get title datalocal Title = A['Title'];local BookTitle = A['BookTitle'];local Conference = A['Conference'];local TransTitle = A['TransTitle'];local TitleNote = A['TitleNote'];local TitleLink = A['TitleLink'];local Chapter = A['Chapter'];local ChapterLink = A['ChapterLink'];local TransChapter = A['TransChapter'];local TitleType = A['TitleType'];local Degree = A['Degree'];local Docket = A['Docket'];local ArchiveURL = A['ArchiveURL'];local URL = A['URL']local URLorigin = A:ORIGIN('URL');local ChapterURL = A['ChapterURL'];local ChapterURLorigin = A:ORIGIN('ChapterURL');local ConferenceURL = A['ConferenceURL'];local ConferenceURLorigin = A:ORIGIN('ConferenceURL');local Periodical = A['Periodical'];local Series = A['Series'];local Volume = A['Volume'];local Issue = A['Issue'];local Position = '';local Page = A['Page'];local Pages = hyphentodash( A['Pages'] );local At = A['At'];local Edition = A['Edition'];local PublicationPlace = A['PublicationPlace']local Place = A['Place'];local PublisherName = A['PublisherName'];local RegistrationRequired = A['RegistrationRequired'];local SubscriptionRequired = A['SubscriptionRequired'];local Via = A['Via'];local AccessDate = A['AccessDate'];local ArchiveDate = A['ArchiveDate'];local Agency = A['Agency'];local DeadURL = A['DeadURL']local Language = A['Language'];local Format = A['Format'];local Ref = A['Ref'];local DoiBroken = A['DoiBroken'];local ID = A['ID'];local ASINTLD = A['ASINTLD'];local IgnoreISBN = A['IgnoreISBN'];local Embargo = A['Embargo'];local ID_list = extractids( args );--[[ Hide unfinished cite newsgroup code so that long delayed update can take place-- special case for cite newsgroup which uses |id= for a usenet article or post id-- |id= is not included in COinS so here we convert it to an ID that will be included in COinSif ('newsgroup' == config.CitationClass) and (is_set (ID)) thenID_list['USENETID']=ID;-- add this new 'id' to the list of IDsID = '';-- and unsetend]]local Quote = A['Quote'];local PostScript = A['PostScript'];local LayURL = A['LayURL'];local LaySource = A['LaySource'];local Transcript = A['Transcript'];local TranscriptURL = A['TranscriptURL'] local TranscriptURLorigin = A:ORIGIN('TranscriptURL');local sepc = A['Separator'];local LastAuthorAmp = A['LastAuthorAmp'];local no_tracking_cats = A['NoTracking'];--these are used by cite interviewlocal Callsign = A['Callsign'];local City = A['City'];local Cointerviewers = A['Cointerviewers'];-- deprecatedlocal Interviewer = A['Interviewer'];-- deprecatedlocal Program = A['Program'];--local variables that are not cs1 parameterslocal page_type;-- is this needed?  Doesn't appear to be used anywhere;local use_lowercase = ( sepc ~= '.' );local this_page = mw.title.getCurrentTitle();--Also used for COinS and for languagelocal anchor_year;-- used in the CITEREF identifierlocal COinS_date;-- used in the COinS metadata-- Set postscript default.if not is_set (PostScript) then-- if |postscript= has not been set (Postscript is nil which is the default for {{citation}}) andif (config.CitationClass ~= "citation") then-- this template is not a citation templatePostScript = '.';-- must be a cite xxx template so set postscript to default (period)endelseif PostScript:lower() == 'none' then-- if |postscript=none thenPostScript = '';-- no postscriptendend--check this page to see if it is in one of the namespaces that cs1 is not supposed to add to the error categories.if not is_set(no_tracking_cats) then-- ignore if we are already not going to categorize this pagefor k, v in pairs( cfg.uncategorized_namespaces ) do-- otherwise, spin through the list of namespaces we don't include in error categoriesif this_page.nsText == v then-- if we find oneno_tracking_cats = "true";-- set no_tracking_catsbreak;-- and we're doneendendend-- check for extra |page=, |pages= or |at= parameters. if is_set(Page) thenif is_set(Pages) or is_set(At) thenPage = Page .. " " .. seterror('extra_pages');-- add error messagePages = '';-- unset the othersAt = '';endelseif is_set(Pages) thenif is_set(At) thenPages = Pages .. " " .. seterror('extra_pages');-- add error messagesAt = '';-- unsetendend-- both |publication-place= and |place= (|location=) allowed if differentif not is_set(PublicationPlace) and is_set(Place) thenPublicationPlace = Place;-- promote |place= (|location=) to |publication-placeendif PublicationPlace == Place then Place = ''; end-- don't need both if they are the same--[[Parameter remapping for cite encyclopedia:When the citation has these parameters:|encyclopedia and |title then map |title to |article and |encyclopedia to |title|encyclopedia and |article then map |encyclopedia to |title|encyclopedia then map |encyclopedia to |title|trans_title maps to |trans_chapter when |title is re-mappedAll other combinations of |encyclopedia, |title, and |article are not modified]]if ( config.CitationClass == "encyclopaedia" ) thenif is_set(Periodical) then-- Periodical is set when |encyclopedia is setif is_set(Title) thenif not is_set(Chapter) thenChapter = Title;-- |encyclopedia and |title are set so map |title to |article and |encyclopedia to |titleTransChapter = TransTitle;Title = Periodical;Periodical = '';-- redundant so unsetTransTitle = '';-- redundant so unsetendelse-- |title not setTitle = Periodical;-- |encyclopedia set and |article set or not set so map |encyclopedia to |titlePeriodical = '';-- redundant so unsetendendend--special cases for citation.if (config.CitationClass == "citation") then-- for citation templatesif not is_set (Ref) then-- if |ref= is not setRef = "harv";-- set default |ref=harvendif not is_set (sepc) then-- if |separator= is not setsepc = ',';-- set citation separator to its default (comma)endelse-- not a citation templateif not is_set (sepc) then-- if |separator= has not been setsepc = '.';-- set cite xxx separator to its default (period)endend-- check for special case where |separator=noneif 'none' == sepc:lower() then-- if |separator=nonesepc = '';-- then set it to an empty stringend-- Special case for cite techreport.if (config.CitationClass == "techreport") then-- special case for cite techreportif is_set(Issue) then-- cite techreport uses 'number', which other citations aliase to 'issue'if not is_set(ID) then-- can we use ID for the "number"?ID = Issue;-- yes, use itIssue = "";-- unset Issue so that "number" isn't duplicated in the rendered citation or COinS metadataelse-- can't use ID so emit error messageID = ID .. " " .. seterror('redundant_parameters', '<code>&#124;id=</code> and <code>&#124;number=</code>');endendend-- special case for cite interviewif (config.CitationClass == "interview") thenif is_set(Program) thenID = ' ' .. Program;endif is_set(Callsign) thenif is_set(ID) thenID = ID .. sepc .. ' ' .. Callsign;elseID = ' ' .. Callsign;endendif is_set(City) thenif is_set(ID) thenID = ID .. sepc .. ' ' .. City;elseID = ' ' .. City;endendif is_set(Interviewer) thenif is_set(TitleType) thenOthers = ' ' .. TitleType .. ' with ' .. Interviewer;TitleType = '';elseOthers = ' ' .. 'Interview with ' .. Interviewer;endif is_set(Cointerviewers) thenOthers = Others .. sepc .. ' ' .. Cointerviewers;endelseOthers = '(Interview)';endend--Account for the oddity that is {{cite journal}} with |pmc= set and |url= not setif config.CitationClass == "journal" and not is_set(URL) and is_set(ID_list['PMC']) thenif not is_embargoed(Embargo) thenURL=cfg.id_handlers['PMC'].prefix .. ID_list['PMC'];-- set url to be the same as the PMC external link if not embargoedURLorigin = cfg.id_handlers['PMC'].parameters[1];-- set URLorigin to parameter name for use in error message if citation is missing a |title=endend-- Account for the oddity that is {{cite conference}}, before generation of COinS data.--TODO: if this is only for {{cite conference}}, shouldn't we be checking? (if config.CitationClass=='conference' then ...)if is_set(BookTitle) thenChapter = Title;ChapterLink = TitleLink;TransChapter = TransTitle;Title = BookTitle;TitleLink = '';TransTitle = '';end-- Account for the oddity that is {{cite episode}}, before generation of COinS data.--[[-- {{cite episode}} is not currently supported by this moduleif config.CitationClass == "episode" thenlocal AirDate = A['AirDate'];local SeriesLink = A['SeriesLink'];local Season = A['Season'];local SeriesNumber = A['SeriesNumber'];local Network = A['Network'];local Station = A['Station'];local s, n = {}, {};local Sep = (first_set(A["SeriesSeparator"], A["Separator"]) or "") .. " ";if is_set(Issue) then table.insert(s, cfg.messages["episode"] .. " " .. Issue); Issue = ''; endif is_set(Season) then table.insert(s, cfg.messages["season"] .. " " .. Season); endif is_set(SeriesNumber) then table.insert(s, cfg.messages["series"] .. " " .. SeriesNumber); endif is_set(Network) then table.insert(n, Network); endif is_set(Station) then table.insert(n, Station); endDate = Date or AirDate;Chapter = Title;ChapterLink = TitleLink;TransChapter = TransTitle;Title = Series;TitleLink = SeriesLink;TransTitle = '';Series = table.concat(s, Sep);ID = table.concat(n, Sep);end-- end of {{cite episode}} stuff]]-- legacy: promote concatenation of |day=, |month=, and |year= to Date if Date not set; or, promote PublicationDate to Date if neither Date nor Year are set.if not is_set(Date) thenDate = Year;-- promote Year to DateYear = nil;-- make nil so Year as empty string isn't used for CITEREFif is_set(Date) thenlocal Month = A['Month'];if is_set(Month) then-- LOCALif nil ~= string.find( frame:getTitle(), 'sandbox', 1, true ) thenget_month_number = require('Module:Citation/CS1/Date_validation/sandbox').get_month_numberelseget_month_number = require('Module:Citation/CS1/Date_validation').get_month_numberendmonth_number = get_month_number(Month)if month_number > 0 thenif month_number < 10 thenMonth = '0' .. month_numberelseMonth = month_numberendelseMonth = string.rep('0', 2 - #Month) .. Monthend-- END LOCALDate = Date .. '-' .. Month; -- LOCALlocal Day = A['Day']if is_set(Day) then Date = Date .. '-' .. string.rep('0', 2 - #Day) .. Day end -- LOCALendelseif is_set(PublicationDate) then-- use PublicationDate when |date= and |year= are not setDate = PublicationDate;-- promote PublicationDate to DatePublicationDate = '';-- unset, no longer neededendendif PublicationDate == Date then PublicationDate = ''; end-- if PublicationDate is same as Date, don't display in rendered citation--[[Go test all of the date-holding parameters for valid MOS:DATE format and make sure that dates are real dates. This must be done before we do COinS because here is wherewe get the date used in the metadata.Date validation supporting code is in Module:Citation/CS1/Date_validation]]anchor_year, COinS_date, error_message = dates({['accessdate']=AccessDate, ['airdate']=AirDate, ['archivedate']=ArchiveDate, ['date']=Date, ['doi_brokendate']=DoiBroken,['embargo']=Embargo, ['laydate']=LayDate, ['publicationdate']=PublicationDate, ['year']=Year});if is_set(error_message) thentable.insert( z.message_tail, { seterror( 'bad_date', {error_message}, true ) } );-- add this error messageend-- At this point fields may be nil if they weren't specified in the template use.  We can use that fact.-- COinS metadata (see <http://ocoins.info/>) for-- automated parsing of citation information.local OCinSoutput = COinS{['Periodical'] = Periodical,['Chapter'] = Chapter,['Title'] = Title,['PublicationPlace'] = PublicationPlace,['Date'] = first_set(COinS_date, Date),-- COinS_date has correctly formatted date if Date is valid; any reason to keep Date here?  Should we be including invalid dates in metadata?['Series'] = Series,['Volume'] = Volume,['Issue'] = Issue,['Pages'] = get_coins_pages (first_set(Page, Pages, At)),-- pages stripped of external links['Edition'] = Edition,['PublisherName'] = PublisherName,['URL'] = first_set( URL, ChapterURL ),['Authors'] = a,['ID_list'] = ID_list,['RawPage'] = this_page.prefixedText,};if is_set(Periodical) and not is_set(Chapter) and is_set(Title) thenChapter = Title;ChapterLink = TitleLink;TransChapter = TransTitle;Title = '';TitleLink = '';TransTitle = '';end--[[ Hide unfinished cite newsgroup code so that long delayed update can take place-- special case for cite newsgroup.  Do this after COinS because we are modifying Publishername and IDif 'newsgroup' == config.CitationClass thenif is_set (PublisherName) thenPublisherName = '[Newsgroup]:&nbsp;' ..  externallink( 'news:' .. PublisherName, PublisherName );endend]]-- 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 not is_set(Authors) thenlocal Maximum = tonumber( A['DisplayAuthors'] );-- Preserve old-style implicit et al.if not is_set(Maximum) and #a == 9 then Maximum = 8;table.insert( z.message_tail, { seterror('implict_etal_author', {}, true ) } );elseif not is_set(Maximum) thenMaximum = #a + 1;endlocal control = { sep = A["AuthorSeparator"] .. " ",namesep = (first_set(A["AuthorNameSeparator"], A["NameSeparator"]) or "") .. " ",format = A["AuthorFormat"],maximum = Maximum,lastauthoramp = LastAuthorAmp};-- If the coauthor field is also used, prevent ampersand and et al. formatting.if is_set(Coauthors) thencontrol.lastauthoramp = nil;control.maximum = #a + 1;endAuthors = listpeople(control, a) endif not is_set(Authors) and is_set(Coauthors) then-- coauthors aren't displayed if one of authors=, authorn=, or lastn= isn't specifiedtable.insert( z.message_tail, { seterror('coauthors_missing_author', {}, true) } );-- emit error messageendlocal EditorCountif not is_set(Editors) thenlocal Maximum = tonumber( A['DisplayEditors'] );-- Preserve old-style implicit et al.if not is_set(Maximum) and #e == 4 then Maximum = 3;table.insert( z.message_tail, { seterror('implict_etal_editor', {}, true) } );elseif not is_set(Maximum) thenMaximum = #e + 1;endlocal control = { sep = A["EditorSeparator"] .. " ",namesep = (first_set(A["EditorNameSeparator"], A["NameSeparator"]) or "") .. " ",format = A['EditorFormat'],maximum = Maximum,lastauthoramp = LastAuthorAmp};Editors, EditorCount = listpeople(control, e);elseEditorCount = 1;endlocal Cartography = "";local Scale = "";if config.CitationClass == "map" thenif not is_set( Authors ) and is_set( PublisherName ) thenAuthors = PublisherName;PublisherName = "";endCartography = A['Cartography'];if is_set( Cartography ) thenCartography = sepc .. " " .. wrap( 'cartography', Cartography, use_lowercase );endScale = A['Scale'];if is_set( Scale ) thenScale = sepc .. " " .. Scale;endendif  not is_set(URL) andnot is_set(ChapterURL) andnot is_set(ArchiveURL) andnot is_set(ConferenceURL) andnot is_set(TranscriptURL) then-- Test if cite web or cite podcast |url= is missing or empty if inArray(config.CitationClass, {"web","podcast"}) thentable.insert( z.message_tail, { seterror( 'cite_web_url', {}, true ) } );end-- Test if accessdate is given without giving a URLif is_set(AccessDate) thentable.insert( z.message_tail, { seterror( 'accessdate_missing_url', {}, true ) } );AccessDate = '';end-- Test if format is given without giving a URLif is_set(Format) thenFormat = Format .. seterror( 'format_missing_url' );endend-- Test if citation has no titleif  not is_set(Chapter) andnot is_set(Title) andnot is_set(Periodical) andnot is_set(Conference) andnot is_set(TransTitle) andnot is_set(TransChapter) thentable.insert( z.message_tail, { seterror( 'citation_missing_title', {}, true ) } );endFormat = is_set(Format) and " (" .. Format .. ")" or "";local OriginalURL = URLDeadURL = DeadURL:lower();if is_set( ArchiveURL ) thenif ( DeadURL ~= "no" ) thenURL = ArchiveURLURLorigin = A:ORIGIN('ArchiveURL')endend-- Format chapter / article title-- LOCALif not is_set(Language) or Language:lower() == 'zh' or Language:sub( 1, 3 ):lower() == 'zh-' thenxLCFlags = 'zh;zh-hans;zh-hant'elsexLCFlags = 'R'endif is_set(Chapter) thenChapter = '' .. Chapter .. ''endif is_set(Title) thenTitle = '' .. Title .. ''end-- END LOCALif is_set(Chapter) and is_set(ChapterLink) then Chapter = "[[" .. ChapterLink .. "|" .. Chapter .. "]]";endif is_set(Periodical) and is_set(Title) thenChapter = wrap( 'italic-title', Chapter );TransChapter = wrap( 'trans-italic-title', TransChapter );elseChapter = kern_quotes (Chapter);-- if necessary, separate chapter title's leading and trailing quote marks from Module provided quote marksChapter = wrap( 'quoted-title', Chapter );TransChapter = wrap( 'trans-quoted-title', TransChapter );endlocal TransError = ""if is_set(TransChapter) thenif not is_set(Chapter) thenTransError = " " .. seterror( 'trans_missing_chapter' );elseTransChapter = " " .. TransChapter;endendChapter = Chapter .. TransChapter;if is_set(Chapter) thenif not is_set(ChapterLink) thenif is_set(ChapterURL) thenChapter = externallink( ChapterURL, Chapter ) .. TransError;if not is_set(URL) thenChapter = Chapter .. Format;Format = "";endelseif is_set(URL) then Chapter = externallink( URL, Chapter ) .. TransError .. Format;URL = "";Format = "";elseChapter = Chapter .. TransError;endelseif is_set(ChapterURL) thenChapter = Chapter .. " " .. externallink( ChapterURL, nil, ChapterURLorigin ) .. TransError;elseChapter = Chapter .. TransError;endif is_set(Title) and is_zh(Title) then -- LOCALChapter = Chapter .. '//' -- LOCALelse -- LOCALChapter = Chapter .. sepc .. " " -- with end-spaceend -- LOCALelseif is_set(ChapterURL) thenChapter = " " .. externallink( ChapterURL, nil, ChapterURLorigin ) .. sepc .. " ";end-- Format main title.if is_set(TitleLink) and is_set(Title) thenTitle = "[[" .. TitleLink .. "|" .. Title .. "]]"endif is_set(Periodical) thenTitle = kern_quotes (Title);-- if necessary, separate title's leading and trailing quote marks from Module provided quote marksTitle = wrap( 'quoted-title', Title );TransTitle = wrap( 'trans-quoted-title', TransTitle );--[[ Hide unfinished cite newsgroup code so that long delayed update can take placeelseif inArray(config.CitationClass, {"web","news","pressrelease","conference","podcast","newsgroup"}) and]]elseif inArray(config.CitationClass, {"web","news","pressrelease","conference","podcast"}) andnot is_set(Chapter) thenTitle = kern_quotes (Title);-- if necessary, separate title's leading and trailing quote marks from Module provided quote marksTitle = wrap( 'quoted-title', Title );TransTitle = wrap( 'trans-quoted-title', TransTitle );elseTitle = wrap( 'italic-title', Title );TransTitle = wrap( 'trans-italic-title', TransTitle );endTransError = "";if is_set(TransTitle) thenif not is_set(Title) thenTransError = " " .. seterror( 'trans_missing_title' );elseTransTitle = " " .. TransTitle;endendTitle = Title .. TransTitle;if is_set(Title) thenif not is_set(TitleLink) and is_set(URL) then Title = externallink( URL, Title ) .. TransError .. Format   URL = "";Format = "";elseTitle = Title .. TransError;endendif is_set(Place) thenPlace = " " .. wrap( 'written', Place, use_lowercase ) .. sepc .. " ";endif is_set(Conference) thenif is_set(ConferenceURL) thenConference = externallink( ConferenceURL, Conference );endConference = sepc .. " " .. Conferenceelseif is_set(ConferenceURL) thenConference = sepc .. " " .. externallink( ConferenceURL, nil, ConferenceURLorigin );endif not is_set(Position) thenlocal Minutes = A['Minutes'];if is_set(Minutes) thenPosition = " " .. Minutes .. " " .. cfg.messages['minutes'];elselocal Time = A['Time'];if is_set(Time) thenlocal TimeCaption = A['TimeCaption']if not is_set(TimeCaption) thenTimeCaption = cfg.messages['event'];if sepc ~= '.' thenTimeCaption = TimeCaption:lower();endendPosition = " " .. TimeCaption .. " " .. Time;endendelsePosition = " " .. Position;At = '';endif not is_set(Page) thenif is_set(Pages) thenif is_set(Periodical) andnot inArray(config.CitationClass, {"encyclopaedia","web","book","news","podcast"}) thenPages = ": " .. Pages;elseif config.CitationClass == "news" then -- LOCALPages = ": (" .. Pages .. ")" -- LOCALelseif config.CitationClass == "book" then -- LOCALPages = ": " .. Pages -- LOCALelseif tonumber(Pages) ~= nil thenPages = sepc .." " .. PPrefix .. Pages .. PSuffix; -- LOCALelsePages = sepc .." " .. PPPrefix .. Pages .. PPSuffix; -- LOCALendendelseif is_set(Periodical) andnot inArray(config.CitationClass, {"encyclopaedia","web","book","news","podcast"}) thenPage = ": " .. Page;elseif config.CitationClass == "news" then -- LOCALPage = ": (" .. Page .. ")" -- LOCALelseif config.CitationClass == "book" then -- LOCALPage = ": " .. Page -- LOCALelsePage = sepc .." " .. PPrefix .. Page .. PSuffix; -- LOCALendendAt = is_set(At) and (sepc .. " " .. At) or "";Position = is_set(Position) and (sepc .. " " .. Position) or "";if config.CitationClass == 'map' thenlocal Section = A['Section'];local Inset = A['Inset'];if first_set( Pages, Page, At ) ~= nil or sepc ~= '.' thenif is_set( Section ) thenSection = ", " .. wrap( 'section', Section, true );endif is_set( Inset ) thenInset = ", " .. wrap( 'inset', Inset, true );endelseif is_set( Section ) thenSection = sepc .. " " .. wrap( 'section', Section, use_lowercase );if is_set( Inset ) thenInset = ", " .. wrap( 'inset', Inset, true );endelseif is_set( Inset ) thenInset = sepc .. " " .. wrap( 'inset', Inset, use_lowercase );endendAt = At .. Section .. Inset;end--[[Look in the list of iso639-1 language codes to see if the value provided in the language parameter matches one of them.  If a match is found, use that value; if not, then use the value that was provided with the language parameter.Categories are assigned in a manner similar to the {{xx icon}} templates - categorizes only mainspace citations and only when the language code is not 'en' (English).]]if is_set (Language) then--local name = mw.language.fetchLanguageName( Language:lower(), "en" );-- experiment: this seems to return correct ISO 639-1 language nameslocal name = cfg.iso639_1[Language:lower()];-- get the language name if Language parameter has a valid iso 639-1 codeif nil == name then-- LOCALlocal langNameInLang = mw.getContentLanguage():getCode()local languageCode = Language:lower()if languageCode:sub( 1, 3 ) == 'zh-' thenlangNameInLang = languageCodeendlocal languageName = mw.language.fetchLanguageName( languageCode, langNameInLang )if languageName ~= '' thenLanguage = languageNameend-- END LOCALLanguage=" " .. wrap( 'language', Language );-- no match, use parameter's valueelseif 0 == this_page.namespace and 'en' ~= Language:lower() then--found a match; is this page main / article space and English not the language?Language=" " .. wrap( 'language', name .. '[[Category:Articles with ' .. name .. '-language external links]]' );-- in main space and not English: categorizeelseLanguage=" " .. wrap( 'language', name );--not in mainspace or language is English so don't categorizeendendelseLanguage="";-- language not specified so make sure this is an empty string;endOthers = is_set(Others) and (sepc .. " " .. Others) or "";-- handle type parameter for those CS1 citations that have default valuesif inArray(config.CitationClass, {"AV-media-notes", "DVD-notes", "podcast", "pressrelease", "techreport", "thesis"}) thenTitleType = set_titletype (config.CitationClass, TitleType);if is_set(Degree) and "Thesis" == TitleType then-- special case for cite thesisTitleType = Degree .. " thesis";endendif is_set(TitleType) then-- if type parameter is specified -- LOCAL TitleType = " (" .. TitleType .. ")";-- display it in parenthesesTitleType = ", " .. TitleType; -- LOCALendTitleNote = is_set(TitleNote) and (sepc .. " " .. TitleNote) or "";Edition = is_set(Edition) and (" " .. wrap( 'edition', Edition )) or "";Issue = is_set(Issue) and (" (" .. Issue .. ")") or "";Series = is_set(Series) and (sepc .. " " .. Series) or "";OrigYear = is_set(OrigYear) and (" [" .. OrigYear .. "]") or "";Agency = is_set(Agency) and (sepc .. " " .. Agency) or "";if is_set(Volume) thenif ( mw.ustring.len(Volume) > 4 )  then Volume = sepc .." " .. Volume;  else Volume = " <b>" .. hyphentodash(Volume) .. "</b>";endend--[[ This code commented out while discussion continues until after week of 2014-03-23 live module update;if is_set(Volume) thenif ( mw.ustring.len(Volume) > 4 )  then Volume = sepc .. " " .. Volume;  else  Volume = " <b>" .. hyphentodash(Volume) .. "</b>";  if is_set(Series) then Volume = sepc .. Volume;  endendend]]------------------------------------ totally unrelated data--[[ Loosely mimic {{subscription required}} template; Via parameter identifies a delivery source that is not the publisher; these sources often, but not always, existbehind a registration or paywall.  So here, we've chosen to decouple via from subscription (via has never been part of the registration required template).Subscription implies paywall; Registration does not.  If both are used in a citation, the subscription required link note is displayed. There are no error messages for this condition.]]if is_set(Via) thenVia = " " .. wrap( 'via', Via );endif is_set(SubscriptionRequired) thenSubscriptionRequired = sepc .. " " .. cfg.messages['subscription']; --here when 'via' parameter not used but 'subscription' iselseif is_set(RegistrationRequired) thenSubscriptionRequired = sepc .. " " .. cfg.messages['registration']; --here when 'via' and 'subscription' parameters not used but 'registration' isendif is_set(AccessDate) thenlocal retrv_text = " " .. cfg.messages['retrieved']if (sepc ~= ".") then retrv_text = retrv_text:lower() endAccessDate = '<span class="reference-accessdate">' -- LOCAL .. sepc.. substitute( retrv_text, {AccessDate} ) .. '</span>'endif is_set(ID) then ID = sepc .." ".. ID; end   if "thesis" == config.CitationClass and is_set(Docket) thenID = sepc .." Docket ".. Docket .. ID;endID_list = buildidlist( ID_list, {DoiBroken = DoiBroken, ASINTLD = ASINTLD, IgnoreISBN = IgnoreISBN, Embargo=Embargo} );if is_set(URL) thenURL = " " .. externallink( URL, nil, URLorigin );endif is_set(Quote) thenif Quote:sub(1,1) == '"' and Quote:sub(-1,-1) == '"' thenQuote = Quote:sub(2,-2);endQuote = sepc .." " .. wrap( 'quoted-text', Quote ); PostScript = "";-- CS1 does not supply terminal punctuation when |quote= is setendlocal Archivedif is_set(ArchiveURL) thenif not is_set(ArchiveDate) thenArchiveDate = seterror('archive_missing_date');endif "no" == DeadURL thenlocal arch_text = cfg.messages['archived'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = sepc .. " " .. substitute( cfg.messages['archived-not-dead'],{ externallink( ArchiveURL, arch_text ), ArchiveDate } );if not is_set(OriginalURL) thenArchived = Archived .. " " .. seterror('archive_missing_url');   endelseif is_set(OriginalURL) thenlocal arch_text = cfg.messages['archived-dead'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = sepc .. " " .. substitute( arch_text,{ externallink( OriginalURL, cfg.messages['original'] ), ArchiveDate } );elselocal arch_text = cfg.messages['archived-missing'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = substitute( arch_text, { seterror('archive_missing_url'), ArchiveDate } ); -- LOCALendelseArchived = ""endlocal Layif is_set(LayURL) thenif is_set(LayDate) then LayDate = " (" .. LayDate .. ")" endif is_set(LaySource) then LaySource = " &ndash; ''" .. safeforitalics(LaySource) .. "''";elseLaySource = "";endif sepc == '.' thenLay = sepc .. " " .. externallink( LayURL, cfg.messages['lay summary'] ) .. LaySource .. LayDateelseLay = sepc .. " " .. externallink( LayURL, cfg.messages['lay summary']:lower() ) .. LaySource .. LayDateendelseLay = "";endif is_set(Transcript) thenif is_set(TranscriptURL) then Transcript = externallink( TranscriptURL, Transcript ); endelseif is_set(TranscriptURL) thenTranscript = externallink( TranscriptURL, nil, TranscriptURLorigin );endlocal Publisher;if is_set(Periodical) andnot inArray(config.CitationClass, {"encyclopaedia","web","pressrelease","podcast"}) thenif is_set(PublisherName) thenif is_set(PublicationPlace) thenPublisher = PublicationPlace .. ": " .. PublisherName;elsePublisher = PublisherName;  endelseif is_set(PublicationPlace) thenPublisher= PublicationPlace;else Publisher = "";end--[[ LOCALif is_set(PublicationDate) thenif is_set(Publisher) thenPublisher = Publisher .. ", " .. wrap( 'published', PublicationDate );elsePublisher = PublicationDate;endend]]if is_set(Publisher) thenPublisher = " (" .. Publisher .. ")";endelse--[[ LOCALif is_set(PublicationDate) thenPublicationDate = " (" .. wrap( 'published', PublicationDate ) .. ")";end]]if is_set(PublisherName) thenif is_set(PublicationPlace) thenPublisher = sepc .. " " .. PublicationPlace .. ": " .. PublisherName -- LOCAL .. PublicationDate;elsePublisher = sepc .. " " .. PublisherName -- LOCAL .. PublicationDate;  endelseif is_set(PublicationPlace) then Publisher= sepc .. " " .. PublicationPlace -- LOCAL .. PublicationDate;else Publisher = '' -- LOCAL PublicationDate;endend-- Several of the above rely upon detecting this as nil, so do it last.if is_set(Periodical) thenif is_set(Title) or is_set(TitleNote) then Periodical = sepc .. " " .. wrap( 'italic-title', Periodical ) else Periodical = wrap( 'italic-title', Periodical )endend--[[Handle the oddity that is cite speech.  This code overrides whatever may be the value assigned to TitleNote (through |department=) and forces it to be " (Speech)" so thatthe annotation directly follows the |title= parameter value in the citation rather than the |event= parameter value (if provided).]]if "speech" == config.CitationClass then-- cite speech onlyTitleNote = " (Speech)";-- annotate the citationif is_set (Periodical) then-- if Periodical, perhaps because of an included |website= or |journal= parameter if is_set (Conference) then-- and if |event= is setConference = Conference .. sepc .. " ";-- then add appropriate punctuation to the end of the Conference variable before renderingendendend-- Piece all bits together at last.  Here, 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 tcommonif inArray(config.CitationClass, {"journal","citation"}) and is_set(Periodical) thenif is_set(Others) then Others = Others .. sepc .. " " endtcommon = safejoin( {Others, Title, TitleNote, Conference, Periodical, Format, TitleType, Scale, Series, Cartography, Edition, Publisher, Agency}, sepc ); -- LOCAL removal: Volume, Issue, Languageelse tcommon = safejoin( {Title, TitleNote, Conference, Periodical, Format, TitleType, Scale, Series, Volume, Issue, Others, Cartography, Edition, Publisher, Agency}, sepc ); -- LOCAL removal: Languageendif #ID_list > 0 thenID_list = safejoin( { sepc .. " ",  table.concat( ID_list, sepc .. " " ), ID }, sepc );elseID_list = ID;end-- LOCALlocal xDate = Datelocal pgtext = Page .. Pages .. Atif ( is_set(Periodical) and Date ~= '' andnot inArray(config.CitationClass, {"encyclopaedia","web"}) )or ( inArray(config.CitationClass, {"book","news"}) ) thenif inArray(config.CitationClass, {"journal","citation"}) and ( Volume ~= '' or Issue ~= '' ) thenxDate = xDate .. ',' .. Volume .. IssueendxDate = xDate .. pgtextpgtext = ''endif PublicationDate and PublicationDate ~= '' thenxDate = xDate .. ' (' .. PublicationDate .. ')'endif OrigYear ~= '' thenxDate = xDate .. OrigYearendif AccessDate ~= '' thenxDate = xDate .. ' ' .. AccessDateendif xDate ~= '' thenxDate = sepc .. ' ' .. xDateend-- END LOCALlocal idcommon = safejoin( { URL, xDate, ID_list, Archived, Via, SubscriptionRequired, Lay, Language, Quote }, sepc ); -- LOCALlocal text;-- LOCAL local pgtext = Position .. Page .. Pages .. At;if is_set(Authors) thenif is_set(Coauthors) thenAuthors = Authors .. A['AuthorSeparator'] .. " " .. Coauthorsend--[[ LOCAL if is_set(Date) thenDate = " ("..Date..")" .. OrigYear .. sepc .. " "else]]if string.sub(Authors,-1,-1) == sepc thenAuthors = Authors .. " "elseAuthors = Authors .. sepc .. " "endif is_set(Editors) thenlocal ed_is_zh = is_zh( Editors ) -- LOCALlocal in_text = ed_is_zh and '' or "In " -- LOCALlocal in_text = " ";local post_text = "";if is_set(Chapter) thenin_text = in_text .. cfg.messages['in'] .. " "elseif EditorCount <= 1 thenpost_text = ", " .. cfg.messages['editor'];elsepost_text = ", " .. cfg.messages['editors'];endend if (sepc ~= '.') then in_text = in_text:lower() endEditors = in_text .. Editors .. post_text;if (string.sub(Editors,-1,-1) == sepc)or ed_is_zh -- LOCALthen Editors = Editors .. " "else Editors = Editors .. sepc .. " "end-- LOCALif ed_is_zh thenEditors = Editors .. ' ' .. cfg.messages['in'] .. sepc .. ' 'end-- END LOCALendtext = safejoin( {Authors, Chapter, Place, Editors, tcommon }, sepc ); -- LOCAL removal: Datetext = safejoin( {text, pgtext, idcommon}, sepc );elseif is_set(Editors) then--[[ LOCALif is_set(Date) thenif EditorCount <= 1 thenEditors = Editors .. ", " .. cfg.messages['editor'];elseEditors = Editors .. ", " .. cfg.messages['editors'];endDate = " (" .. Date ..")" .. OrigYear .. sepc .. " "else ]]if EditorCount <= 1 thenEditors = Editors .. " (" .. cfg.messages['editor'] .. ")" .. sepc .. " "elseEditors = Editors .. " (" .. cfg.messages['editors'] .. ")" .. sepc .. " "end-- LOCAL endtext = safejoin( {Chapter, Editors, Place, tcommon}, sepc );text = safejoin( {text, pgtext, idcommon}, sepc );else--[[ LOCALif is_set(Date) thenif ( string.sub(tcommon,-1,-1) ~= sepc )  then Date = sepc .." " .. Date .. OrigYear  else Date = " " .. Date .. OrigYearendend ]]if config.CitationClass=="journal" and is_set(Periodical) thentext = safejoin( {Chapter, Place, tcommon}, sepc );text = safejoin( {text, pgtext, idcommon}, sepc ); -- LOCALelsetext = safejoin( {Chapter, Place, tcommon}, sepc ); -- LOCALtext = safejoin( {text, pgtext, idcommon}, sepc );endendif is_set(PostScript) and PostScript ~= sepc thentext = safejoin( {text, sepc}, sepc );  --Deals with italics, spaces, etc.text = text:sub(1,-sepc:len()-1);--text = text:sub(1,-2);--Remove final separator (assumes that sepc is only one character)endtext = safejoin( {text, PostScript}, sepc );-- Now enclose the whole thing in a <span/> elementlocal options = {};if is_set(config.CitationClass) and config.CitationClass ~= "citation" thenoptions.class = "citation " .. config.CitationClass;elseoptions.class = "citation";endif is_set(Ref) and Ref:lower() ~= "none" thenlocal id = Refif ( "harv" == Ref ) thenlocal names = {} --table of last names & yearif #a > 0 thenfor i,v in ipairs(a) do names[i] = v.last if i == 4 then break endendelseif #e > 0 thenfor i,v in ipairs(e) do names[i] = v.last if i == 4 then break endendendnames[ #names + 1 ] = first_set(Year, anchor_year);-- Year first for legacy citationsid = anchorid(names)endoptions.id = id;endif string.len(text:gsub("<span[^>/]*>.-</span>", ""):gsub("%b<>","")) <= 2 thenz.error_categories = {};text = seterror('empty_citation');z.message_tail = {};endif is_set(options.id) then text = '<span id="' .. mw.uri.anchorEncode(options.id) ..'" class="' .. mw.text.nowiki(options.class) .. '">' .. text .. "</span>";elsetext = '<span class="' .. mw.text.nowiki(options.class) .. '">' .. text .. "</span>";endlocal empty_span = '<span style="display:none;">&nbsp;</span>';-- Note: Using display: none on then COinS span breaks some clients.local OCinS = '<span title="' .. OCinSoutput .. '" class="Z3988">' .. empty_span .. '</span>';text = text .. OCinS;if #z.message_tail ~= 0 thentext = text .. " ";for i,v in ipairs( z.message_tail ) doif is_set(v[1]) thenif i == #z.message_tail thentext = text .. errorcomment( v[1], v[2] );elsetext = text .. errorcomment( v[1] .. "; ", v[2] );endendendendno_tracking_cats = no_tracking_cats:lower();if inArray(no_tracking_cats, {"", "no", "false", "n"}) thenfor _, v in ipairs( z.error_categories ) dotext = text .. '[[Category:' .. v ..']]';endendreturn textend-- This is used by templates such as {{cite book}} to create the actual citation text.function z.citation(frame)local pframe = frame:getParent()if nil ~= string.find( frame:getTitle(), 'sandbox', 1, true ) then-- did the {{#invoke:}} use sandbox version?cfg = mw.loadData( 'Module:Citation/CS1/Configuration/sandbox' );-- load sandbox versions of Configuration and Whitelist and ...whitelist = mw.loadData( 'Module:Citation/CS1/Whitelist/sandbox' );dates = require('Module:Citation/CS1/Date_validation/sandbox').dates-- ... sandbox version of date validation codeelse-- otherwisecfg = mw.loadData( 'Module:Citation/CS1/Configuration' );-- load live versions of Configuration and Whitelist and ...whitelist = mw.loadData( 'Module:Citation/CS1/Whitelist' );dates = require('Module:Citation/CS1/Date_validation').dates-- ... live version of date validation codeendlocal args = {};local suggestions = {};local error_text, error_state;local config = {};for k, v in pairs( frame.args ) doconfig[k] = v;args[k] = v;   endfor k, v in pairs( pframe.args ) doif v ~= '' thenif not validate( k ) thenerror_text = "";if type( k ) ~= 'string' then-- Exclude empty numbered parametersif v:match("%S+") ~= nil thenerror_text, error_state = seterror( 'text_ignored', {v}, true );endelseif validate( k:lower() ) then error_text, error_state = seterror( 'parameter_ignored_suggest', {k, k:lower()}, true );elseif #suggestions == 0 thensuggestions = mw.loadData( 'Module:Citation/CS1/Suggestions' );endif suggestions[ k:lower() ] ~= nil thenerror_text, error_state = seterror( 'parameter_ignored_suggest', {k, suggestions[ k:lower() ]}, true );elseerror_text, error_state = seterror( 'parameter_ignored', {k}, true );endend  if error_text ~= '' thentable.insert( z.message_tail, {error_text, error_state} );endendargs[k] = v;elseif args[k] ~= nil or (k == 'postscript') thenargs[k] = v;endendreturn citation0( config, args, frame ) -- LOCALendreturn z