विभाग:Citation/CS1

--[[--------------------------< F O R W A R D   D E C L A R A T I O N S >--------------------------------------]]local dates, year_date_check, reformat_dates, date_hyphen_to_dash,-- functions in Module:Citation/CS1/Date_validationdate_name_xlatelocal is_set, in_array, substitute, error_comment, set_error, select_one,-- functions in Module:Citation/CS1/Utilitiesadd_maint_cat, wrap_style, safe_for_italics, is_wikilink, make_wikilink,strip_apostrophe_markup;local z ={};-- tables in Module:Citation/CS1/Utilitieslocal extract_ids, extract_id_access_levels, build_id_list, is_embargoed;-- functions in Module:Citation/CS1/Identifierslocal make_coins_title, get_coins_pages, COinS;-- functions in Module:Citation/CS1/COinSlocal cfg = {};-- table of configuration tables that are defined in Module:Citation/CS1/Configurationlocal whitelist = {};-- table of tables listing valid template parameter names; defined in Module:Citation/CS1/Whitelist--[[--------------------------< P A G E   S C O P E   V A R I A B L E S >--------------------------------------delare variables here that have page-wide scope that are not brought in from other modules; thatare created hereand used here]]local added_deprecated_cat;-- boolean flag so that the category is added only oncelocal added_prop_cats = {};-- list of property categories that have been added to z.properties_catslocal added_vanc_errs;-- boolean flag so we only emit one Vancouver error / categorylocal Frame;-- holds the module's frame table--[[--------------------------< F I R S T _ S E T >------------------------------------------------------------Locates and returns the first set value in a table of values where the order established in the table,left-to-right (or top-to-bottom), is the order in which the values are evaluated.  Returns nil if none are set.This version replaces the original 'for _, val in pairs do' and a similar version that used ipairs.  With the pairsversion the order of evaluation could not be guaranteed.  With the ipairs version, a nil value would terminatethe for-loop before it reached the actual end of the list.]]local function first_set (list, count)local i = 1;while i <= count do-- loop through all items in listif is_set( list[i] ) thenreturn list[i];-- return the first set list memberendi = i + 1;-- point to nextendend--[[--------------------------< A D D _ P R O P _ C A T >--------------------------------------------------------Adds a category to z.properties_cats using names from the configuration file with additional text if any.foreign_lang_source and foreign_lang_source_2 keys have a language code appended to them so that multiple languagesmay be categorized but multiples of the same language are not categorized.added_prop_cats is a table declared in page scope variables above]]local function add_prop_cat (key, arguments)if not added_prop_cats [key] thenadded_prop_cats [key] = true;-- note that we've added this categorykey = key:gsub ('(foreign_lang_source_?2?)%a%a%a?[%a%-]*', '%1');-- strip lang code from keynametable.insert( z.properties_cats, substitute (cfg.prop_cats [key], arguments));-- make name then add to tableendend--[[--------------------------< A D D _ V A N C _ E R R O R >----------------------------------------------------Adds a single Vancouver system error message to the template's output regardless of how many error actually exist.To prevent duplication, added_vanc_errs is nil until an error message is emitted.added_vanc_errs is a boolean declared in page scope variables above]]local function add_vanc_error (source)if not added_vanc_errs thenadded_vanc_errs = true;-- note that we've added this categorytable.insert( z.message_tail, { set_error( 'vancouver', {source}, true ) } );endend--[[--------------------------< I S _ S C H E M E >------------------------------------------------------------does this thing that purports to be a uri scheme seem to be a valid scheme?  The scheme is checked to see if itis in agreement with http://tools.ietf.org/html/std66#section-3.1 which says:Scheme names consist of a sequence of characters beginning with a   letter and followed by any combination of letters, digits, plus   ("+"), period ("."), or hyphen ("-").returns true if it does, else false]]local function is_scheme (scheme)return scheme and scheme:match ('^%a[%a%d%+%.%-]*:');-- true if scheme is set and matches the patternend--[=[-------------------------< I S _ D O M A I N _ N A M E >--------------------------------------------------Does this thing that purports to be a domain name seem to be a valid domain name?Syntax defined here: http://tools.ietf.org/html/rfc1034#section-3.5BNF defined here: https://tools.ietf.org/html/rfc4234Single character names are generally reserved; see https://tools.ietf.org/html/draft-ietf-dnsind-iana-dns-01#page-15;see also [[Single-letter second-level domain]]list of tlds: https://www.iana.org/domains/root/dbrfc952 (modified by rfc 1123) requires the first and last character of a hostname to be a letter or a digit.  Betweenthe first and last characters the name may use letters, digits, and the hyphen.Also allowed are IPv4 addresses. IPv6 not supporteddomain is expected to be stripped of any path so that the last character in the last character of the tld.  tldis two or more alpha characters.  Any preceding '//' (from splitting a url with a scheme) will be strippedhere.  Perhaps not necessary but retained incase it is necessary for IPv4 dot decimal.There are several tests:the first character of the whole domain name including subdomains must be a letter or a digitinternationalized domain name (ascii characters with .xn-- ASCII Compatible Encoding (ACE) prefix xn-- in the tld) see https://tools.ietf.org/html/rfc3490single-letter/digit second-level domains in the .org, .cash, and .today TLDsq, x, and z SL domains in the .com TLDi and q SL domains in the .net TLDsingle-letter SL domains in the ccTLDs (where the ccTLD is two letters)two-character SL domains in gTLDs (where the gTLD is two or more letters)three-plus-character SL domains in gTLDs (where the gTLD is two or more letters)IPv4 dot-decimal address format; TLD not allowedreturns true if domain appears to be a proper name and tld or IPv4 address, else false]=]local function is_domain_name (domain)if not domain thenreturn false;-- if not set, abandonenddomain = domain:gsub ('^//', '');-- strip '//' from domain name if present; done here so we only have to do it onceif not domain:match ('^[%w]') then-- first character must be letter or digitreturn false;endif domain:match ('^%a+:') then-- hack to detect things that look like s:Page:Title where Page: is namespace at wikisourcereturn false;endlocal patterns = {-- patterns that look like urls'%f[%w][%w][%w%-]+[%w]%.%a%a+$',-- three or more character hostname.hostname or hostname.tld'%f[%w][%w][%w%-]+[%w]%.xn%-%-[%w]+$',-- internationalized domain name with ACE prefix'%f[%a][qxz]%.com$',-- assigned one character .com hostname (x.com times out 2015-12-10)'%f[%a][iq]%.net$',-- assigned one character .net hostname (q.net registered but not active 2015-12-10)'%f[%w][%w]%.%a%a$',-- one character hostname and cctld (2 chars)'%f[%w][%w][%w]%.%a%a+$',-- two character hostname and tld'^%d%d?%d?%.%d%d?%d?%.%d%d?%d?%.%d%d?%d?',-- IPv4 address}for _, pattern in ipairs (patterns) do-- loop through the patterns listif domain:match (pattern) thenreturn true;-- if a match then we think that this thing that purports to be a url is a urlendendfor _, d in ipairs ({'cash', 'company', 'today', 'org'}) do-- look for single letter second level domain names for these top level domainsif domain:match ('%f[%w][%w]%.' .. d) thenreturn trueendendreturn false;-- no matches, we don't know what this thing isend--[[--------------------------< I S _ U R L >------------------------------------------------------------------returns true if the scheme and domain parts of a url appear to be a valid url; else false.This function is the last step in the validation process.  This function is separate because there are cases thatare not covered by split_url(), for example is_parameter_ext_wikilink() which is looking for bracketted externalwikilinks.]]local function is_url (scheme, domain)if is_set (scheme) then-- if scheme is set check it and domainreturn is_scheme (scheme) and is_domain_name (domain);elsereturn is_domain_name (domain);-- scheme not set when url is protocol relativeendend--[[--------------------------< S P L I T _ U R L >------------------------------------------------------------Split a url into a scheme, authority indicator, and domain.First remove Fully Qualified Domain Name terminator (a dot following tld) (if any) and any path(/), query(?) or fragment(#).If protocol relative url, return nil scheme and domain else return nil for both scheme and domain.When not protocol relative, get scheme, authority indicator, and domain.  If there is an authority indicator (oneor more '/' characters immediately following the scheme's colon), make sure that there are only 2.Strip off any port and path;]]local function split_url (url_str)local scheme, authority, domain;url_str = url_str:gsub ('([%a%d])%.?[/%?#].*$', '%1');-- strip FQDN terminator and path(/), query(?), fragment (#) (the capture prevents false replacement of '//')if url_str:match ('^//%S*') then-- if there is what appears to be a protocol relative urldomain = url_str:match ('^//(%S*)')elseif url_str:match ('%S-:/*%S+') then-- if there is what appears to be a scheme, optional authority indicator, and domain namescheme, authority, domain = url_str:match ('(%S-:)(/*)(%S+)');-- extract the scheme, authority indicator, and domain portionsauthority = authority:gsub ('//', '', 1);-- replace place 1 pair of '/' with nothing;if is_set(authority) then-- if anything left (1 or 3+ '/' where authority should be) thenreturn scheme;-- return scheme only making domain nil which will cause an error messageenddomain = domain:gsub ('(%a):%d+', '%1');-- strip port number if presentendreturn scheme, domain;end--[[--------------------------< L I N K _ P A R A M _ O K >---------------------------------------------------checks the content of |title-link=, |series-link=, |author-link= etc for properly formatted content: no wikilinks, no urlsLink parameters are to hold the title of a wikipedia article so none of the WP:TITLESPECIALCHARACTERS are allowed:# < > [ ] | { } _except the underscore which is used as a space in wiki urls and # which is used for section linksreturns false when the value contains any of these characters.When there are no illegal characters, this function returns TRUE if value DOES NOT appear to be a valid url (the|<param>-link= parameter is ok); else false when value appears to be a valid url (the |<param>-link= parameter is NOT ok).]]local function link_param_ok (value)local scheme, domain;if value:find ('[<>%[%]|{}]') then-- if any prohibited charactersreturn false;endscheme, domain = split_url (value);-- get scheme or nil and domain or nil from url; return not is_url (scheme, domain);-- return true if value DOES NOT appear to be a valid urlend--[[--------------------------< L I N K _ T I T L E _ O K >---------------------------------------------------Use link_param_ok() to validate |<param>-link= value and its matching |<title>= value.|<title>= may be wikilinked but not when |<param>-link= has a value.  This function emits an error message whenthat condition exists]]local function link_title_ok (link, lorig, title, torig)local orig;if is_set (link) then -- don't bother if <param>-link doesn't have a valueif not link_param_ok (link) then-- check |<param>-link= markuporig = lorig;-- identify the failing link parameterelseif title:find ('%[%[') then-- check |title= for wikilink markuporig = torig;-- identify the failing |title= parameterendendif is_set (orig) thentable.insert( z.message_tail, { set_error( 'bad_paramlink', orig)});-- url or wikilink in |title= with |title-link=;endend--[[--------------------------< C H E C K _ U R L >------------------------------------------------------------Determines whether a URL string appears to be valid.First we test for space characters.  If any are found, return false.  Then split the url into scheme and domainportions, or for protocol relative (//example.com) urls, just the domain.  Use is_url() to validate the twoportions of the url.  If both are valid, or for protocol relative if domain is valid, return true, else false.Because it is different from a standard url, and because this module used external_link() to make external linksthat work for standard and news: links, we validate newsgroup names here.  The specification for a newsgroup nameis at https://tools.ietf.org/html/rfc5536#section-3.1.4]]local function check_url( url_str )if nil == url_str:match ("^%S+$") then-- if there are any spaces in |url=value it can't be a proper urlreturn false;endlocal scheme, domain;scheme, domain = split_url (url_str);-- get scheme or nil and domain or nil from url;if 'news:' == scheme then-- special case for newsgroupsreturn domain:match('^[%a%d%+%-_]+%.[%a%d%+%-_%.]*[%a%d%+%-_]$');endreturn is_url (scheme, domain);-- return true if value appears to be a valid urlend--[=[-------------------------< I S _ P A R A M E T E R _ E X T _ W I K I L I N K >----------------------------Return true if a parameter value has a string that begins and ends with square brackets [ and ] and the firstnon-space characters following the opening bracket appear to be a url.  The test will also find external wikilinksthat use protocol relative urls. Also finds bare urls.The frontier pattern prevents a match on interwiki links which are similar to scheme:path urls.  The tests thatfind bracketed urls are required because the parameters that call this test (currently |title=, |chapter=, |work=,and |publisher=) may have wikilinks and there are articles or redirects like '//Hus' so, while uncommon, |title=[[//Hus]]is possible as might be [[en://Hus]].]=]local function is_parameter_ext_wikilink (value)local scheme, domain;if value:match ('%f[%[]%[%a%S*:%S+.*%]') then-- if ext wikilink with scheme and domain: [xxxx://yyyyy.zzz]scheme, domain = split_url (value:match ('%f[%[]%[(%a%S*:%S+).*%]'));elseif value:match ('%f[%[]%[//%S+.*%]') then-- if protocol relative ext wikilink: [//yyyyy.zzz]scheme, domain = split_url (value:match ('%f[%[]%[(//%S+).*%]'));elseif value:match ('%a%S*:%S+') then-- if bare url with scheme; may have leading or trailing plain textscheme, domain = split_url (value:match ('(%a%S*:%S+)'));elseif value:match ('//%S+') then-- if protocol relative bare url: //yyyyy.zzz; may have leading or trailing plain textscheme, domain = split_url (value:match ('(//%S+)'));-- what is left should be the domainelsereturn false;-- didn't find anything that is obviously a urlendreturn is_url (scheme, domain);-- return true if value appears to be a valid urlend--[[-------------------------< C H E C K _ F O R _ U R L >-----------------------------------------------------loop through a list of parameters and their values.  Look at the value and if it has an external link, emit an error message.]]local function check_for_url (parameter_list)local error_message = '';for k, v in pairs (parameter_list) do-- for each parameter in the listif is_parameter_ext_wikilink (v) then-- look at the value; if there is a url add an error messageif is_set(error_message) then-- once we've added the first portion of the error message ...error_message=error_message .. ", ";-- ... add a comma space separatorenderror_message=error_message .. "&#124;" .. k .. "=";-- add the failed parameterendendif is_set (error_message) then-- done looping, if there is an error message, display ittable.insert( z.message_tail, { set_error( 'param_has_ext_link', {error_message}, true ) } );endend--[[--------------------------< S A F E _ F O R _ U R L >------------------------------------------------------Escape sequences for content that will be used for URL descriptions]]local function safe_for_url( str )if str:match( "%[%[.-%]%]" ) ~= nil then table.insert( z.message_tail, { set_error( 'wikilink_in_url', {}, true ) } );endreturn str:gsub( '[%[%]\n]', {['['] = '&#91;',[']'] = '&#93;',['\n'] = ' ' } );end--[[--------------------------< E X T E R N A L _ L I N K >----------------------------------------------------Format an external link with error checking]]local function external_link( URL, label, source, access)local error_str = "";local domain;local path;local base_url;if not is_set( label ) thenlabel = URL;if is_set( source ) thenerror_str = set_error( 'bare_url_missing_title', { wrap_style ('parameter', source) }, false, " " );elseerror( cfg.messages["bare_url_no_origin"] );endendif not check_url( URL ) thenerror_str = set_error( 'bad_url', {wrap_style ('parameter', source)}, false, " " ) .. error_str;enddomain, path = URL:match ('^([/%.%-%+:%a%d]+)([/%?#].*)$');-- split the url into scheme plus domain and pathif path then-- if there is a path portionpath = path:gsub ('[%[%]]', {['[']='%5b',[']']='%5d'});-- replace '[' and ']' with their percent encoded valuesURL = table.concat ({domain, path});-- and reassembleendbase_url = table.concat({ "[", URL, " ", safe_for_url (label), "]" });-- assemble a wikimarkup urlif is_set (access) then-- access level (subscription, registration, limited)base_url = substitute (cfg.presentation['ext-link-access-signal'], {cfg.presentation[access].class, cfg.presentation[access].title, base_url});-- add the appropriate iconendreturn table.concat ({base_url, error_str});end--[[--------------------------< D E P R E C A T E D _ P A R A M E T E R >--------------------------------------Categorize and emit an error message when the citation contains one or more deprecated parameters.  The function includes theoffending parameter name to the error message.  Only one error message is emitted regardless of the number of deprecatedparameters in the citation.added_deprecated_cat is a boolean declared in page scope variables above]]local function deprecated_parameter(name)if not added_deprecated_cat thenadded_deprecated_cat = true;-- note that we've added this categorytable.insert( z.message_tail, { set_error( 'deprecated_params', {name}, true ) } );-- add error messageendend--[=[-------------------------< K E R N _ Q U O T E S >--------------------------------------------------------Apply kerning to open the space between the quote mark provided by the Module and a leading or trailing quotemark 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)Double single quotes (italic or bold wikimarkup) are not kerned.Replaces unicode quotemarks in plain text or in the label portion of a [[L|D]] style wikilink with typewriterquote marks regardless of the need for kerning.  Unicode quote marks are not replaced in simple [[D]] wikilinks.Call this function for chapter titles, for website titles, etc; not for book titles.]=]local function kern_quotes (str)local cap='';local cap2='';local wl_type, label, link;wl_type, label, link = is_wikilink (str);-- wl_type is: 0, no wl (text in label variable); 1, [[D]]; 2, [[L|D]]if 1 == wl_type then-- [[D]] simple wikilink with or without quote marksif mw.ustring.match (str, '%[%[[\"“”\'‘’].+[\"“”\'‘’]%]%]') then-- leading and trailing quote marksstr = substitute (cfg.presentation['kern-wl-both'], str);elseif mw.ustring.match (str, '%[%[[\"“”\'‘’].+%]%]')then-- leading quote marksstr = substitute (cfg.presentation['kern-wl-left'], str);elseif mw.ustring.match (str, '%[%[.+[\"“”\'‘’]%]%]') then-- trailing quote marksstr = substitute (cfg.presentation['kern-wl-right'], str);endelse-- plain text or [[L|D]]; text in label variablelabel= mw.ustring.gsub (label, '[“”]', '\"');-- replace “” (U+201C & U+201D) with " (typewriter double quote mark)label= mw.ustring.gsub (label, '[‘’]', '\'');-- replace ‘’ (U+2018 & U+2019) with ' (typewriter single quote mark)cap, cap2 = mw.ustring.match (label, "^([\"\'])([^\'].+)");-- match leading double or single quote but not doubled single quotes (italic markup)if is_set (cap) thenlabel = substitute (cfg.presentation['kern-left'], {cap, cap2});endcap, cap2 = mw.ustring.match (label, "^(.+[^\'])([\"\'])$")-- match trailing double or single quote but not doubled single quotes (italic markup)if is_set (cap) thenlabel = substitute (cfg.presentation['kern-right'], {cap, cap2});endif 2 == wl_type thenstr = make_wikilink (link, label);-- reassemble the wikilinkelsestr = label;endendreturn str;end--[[--------------------------< F O R M A T _ S C R I P T _ V A L U E >----------------------------------------|script-title= holds title parameters that are not written in Latin based scripts: Chinese, Japanese, Arabic, Hebrew, etc. These scripts shouldnot be italicized and may be written right-to-left.  The value supplied by |script-title= is concatenated onto Title after Title has been wrappedin italic markup.Regardless of language, all values provided by |script-title= are wrapped in <bdi>...</bdi> tags to isolate rtl languages from the English left to right.|script-title= provides a unique feature.  The value in |script-title= may be prefixed with a two-character ISO639-1 language code and a colon:|script-title=ja:*** *** (where * represents a Japanese character)Spaces between the two-character code and the colon and the colon and the first script character are allowed:|script-title=ja : *** ***|script-title=ja: *** ***|script-title=ja :*** ***Spaces preceding the prefix are allowed: |script-title = ja:*** ***The prefix is checked for validity.  If it is a valid ISO639-1 language code, the lang attribute (lang="ja") is added to the <bdi> tag so that browsers canknow the language the tag contains.  This may help the browser render the script more correctly.  If the prefix is invalid, the lang attributeis not added.  At this time there is no error message for this condition.Supports |script-title=, |script-chapter=, |script-<periodical>=]]local function format_script_value (script_value, script_param)local lang='';-- initialize to empty stringlocal name;if script_value:match('^%l%l%l?%s*:') then-- if first 3 or 4 non-space characters are script language prefixlang = script_value:match('^(%l%l%l?)%s*:%s*%S.*');-- get the language prefix or nil if there is no scriptif not is_set (lang) thentable.insert( z.message_tail, { set_error( 'script_parameter', {script_param, 'missing title part'}, true ) } );-- prefix without 'title'; add error messagereturn '';-- script_value was just the prefix so return empty stringend-- if we get this far we have prefix and scriptname = cfg.lang_code_remap[lang] or mw.language.fetchLanguageName( lang, cfg.this_wiki_code );-- get language name so that we can use it to categorizeif is_set (name) then-- is prefix a proper ISO 639-1 language code?script_value = script_value:gsub ('^%l+%s*:%s*', '');-- strip prefix from script-- is prefix one of these language codes?if in_array (lang, cfg.script_lang_codes) thenadd_prop_cat ('script_with_name', {name, lang})elsetable.insert( z.message_tail, { set_error( 'script_parameter', {script_param, 'unknown language code'}, true ) } );-- unknown script-language; add error messageendlang = ' lang="' .. lang .. '" ';-- convert prefix into a lang attributeelsetable.insert( z.message_tail, { set_error( 'script_parameter', {script_param, 'invalid language code'}, true ) } );-- invalid language code; add error messagelang = '';-- invalid so set lang to empty stringendelsetable.insert( z.message_tail, { set_error( 'script_parameter', {script_param, 'missing prefix'}, true ) } );-- no language code prefix; add error messageendscript_value = substitute (cfg.presentation['bdi'], {lang, script_value});-- isolate in case script is rtlreturn script_value;end--[[--------------------------< S C R I P T _ C O N C A T E N A T E >------------------------------------------Initially for |title= and |script-title=, this function concatenates those two parameter values after the script value has been wrapped in <bdi> tags.]]local function script_concatenate (title, script, script_param)if is_set (script) thenscript = format_script_value (script, script_param);-- <bdi> tags, lang atribute, categorization, etc; returns empty string on errorif is_set (script) thentitle = title .. ' ' .. script;-- concatenate title and script titleendendreturn title;end--[[--------------------------< W R A P _ M S G >--------------------------------------------------------------Applies additional message text to various parameter values. Supplied string is wrapped using a message_listconfiguration taking one argument.  Supports lower case text for {{citation}} templates.  Additional text takenfrom citation_config.messages - the reason this function is similar to but separate from wrap_style().]]local function wrap_msg (key, str, lower)if not is_set( str ) thenreturn "";endif true == lower thenlocal msg;msg = cfg.messages[key]:lower();-- set the message to lower case before return substitute( msg, str );-- including template textelsereturn substitute( cfg.messages[key], str );endend--[[--------------------------< W I K I S O U R C E _ U R L _ M A K E >----------------------------------------makes a wikisource url from wikisource interwiki link.  returns the url and appropriate label; nil else.str is the value assigned to |chapter= (or aliases) or |title= or |title-link=]]local function wikisource_url_make (str)local wl_type, D, L;local ws_url, ws_label;local wikisource_prefix = table.concat ({'https://', cfg.this_wiki_code, '.wikisource.org/wiki/'});wl_type, D, L = is_wikilink (str);-- wl_type is 0 (not a wikilink), 1 (simple wikilink), 2 (complex wikilink)if 0 == wl_type then-- not a wikilink; might be from |title-link=str = D:match ('^[Ww]ikisource:(.+)') or D:match ('^[Ss]:(.+)');-- article title from interwiki link with long-form or short-form namespaceif is_set (str) thenws_url = table.concat ({-- build a wikisource urlwikisource_prefix,-- prefixstr,-- article title});ws_label = str;-- label for the urlendelseif 1 == wl_type then-- simple wikilink: [[Wikisource:ws article]]str = D:match ('^[Ww]ikisource:(.+)') or D:match ('^[Ss]:(.+)');-- article title from interwiki link with long-form or short-form namespaceif is_set (str) thenws_url = table.concat ({-- build a wikisource urlwikisource_prefix,-- prefixstr,-- article title});ws_label = str;-- label for the urlendelseif 2 == wl_type then-- non-so-simple wikilink: [[Wikisource:ws article|displayed text]] ([[L|D]])str = L:match ('^[Ww]ikisource:(.+)') or L:match ('^[Ss]:(.+)');-- article title from interwiki link with long-form or short-form namespaceif is_set (str) thenws_label = D;-- get ws article name from display portion of interwiki linkws_url = table.concat ({-- build a wikisource urlwikisource_prefix,-- prefixstr,-- article title without namespace from link portion of wikilink});endendif ws_url thenws_url = mw.uri.encode (ws_url, 'WIKI');-- make a usable urlws_url = ws_url:gsub ('%%23', '#');-- undo percent encoding of fragment markerendreturn ws_url, ws_label, L or D;-- return proper url or nil and a label or nilend--[[--------------------------< F O R M A T _ P E R I O D I C A L >--------------------------------------------Format the three periodical parameters: |script-<periodical>=, |<periodical>=, and |trans-<periodical>= into a single Periodical meta-parameter.]]local function format_periodical (script_periodical, script_periodical_source, periodical, trans_periodical)local periodical_error = '';if not is_set (periodical) thenperiodical = '';-- to be safe for concatenationelseperiodical = wrap_style ('italic-title', periodical);-- style endperiodical = script_concatenate (periodical, script_periodical, script_periodical_source);-- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrappedif is_set (trans_periodical) thentrans_periodical = wrap_style ('trans-italic-title', trans_periodical);if is_set (periodical) thenperiodical = periodical ..  ' ' .. trans_periodical;else-- here when trans-periodical without periodical or script-periodicalperiodical = trans_periodical;periodical_error = ' ' .. set_error ('trans_missing_title', {'periodical'});endendreturn periodical .. periodical_error;end--[[--------------------------< F O R M A T _ C H A P T E R _ T I T L E >--------------------------------------Format the four chapter parameters: |script-chapter=, |chapter=, |trans-chapter=, and |chapter-url= into a single Chapter meta-parameter (chapter_url_source used for error messages).]]local function format_chapter_title (scriptchapter, script_chapter_source, chapter, transchapter, chapterurl, chapter_url_source, no_quotes, access)local chapter_error = '';local ws_url, ws_label, L = wikisource_url_make (chapter);-- make a wikisource url and label from a wikisource interwiki linkif ws_url thenws_label = ws_label:gsub ('_', '');-- replace underscore separaters with space characterschapter = ws_label;endif not is_set (chapter) thenchapter = '';-- to be safe for concatenationelseif false == no_quotes thenchapter = kern_quotes (chapter);-- if necessary, separate chapter title's leading and trailing quote marks from Module provided quote markschapter = wrap_style ('quoted-title', chapter);endendchapter = script_concatenate (chapter, scriptchapter, script_chapter_source);-- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrappedif is_set (chapterurl) thenchapter = external_link (chapterurl, chapter, chapter_url_source, access);-- adds bare_url_missing_title error if appropriateelseif ws_url thenchapter = external_link (ws_url, chapter .. '&nbsp;', 'ws link in chapter');-- adds bare_url_missing_title error if appropriate; space char to move icon away from chap text; TODO: better way to do this?chapter = substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, chapter});endif is_set (transchapter) thentranschapter = wrap_style ('trans-quoted-title', transchapter);if is_set (chapter) thenchapter = chapter ..  ' ' .. transchapter;else-- here when transchapter without chapter or script-chapterchapter = transchapter;chapter_error = ' ' .. set_error ('trans_missing_title', {'chapter'});endendreturn chapter .. chapter_error;end--[[--------------------------< H A S _ I N V I S I B L E _ C H A R S >----------------------------------------This function searches a parameter's value for nonprintable or invisible characters.  The search stops at thefirst match.This function will detect the visible replacement character when it is part of the wikisource.Detects but ignores nowiki and math stripmarkers.  Also detects other named stripmarkers (gallery, math, pre, ref)and identifies them with a slightly different error message.  See also coins_cleanup().Output of this function is an error message that identifies the character or the Unicode group, or the stripmarkerthat was detected along with its position (or, for multi-byte characters, the position of its first byte) in theparameter value.]]local function has_invisible_chars (param, v)local position = '';-- position of invisible char or starting position of stripmarkerlocal dummy;-- end of matching string; not used but required to hold end position when a capture is returnedlocal capture;-- used by stripmarker detection to hold name of the stripmarkerlocal i=1;local stripmarker, apostrophe;capture = string.match (v, '[%w%p ]*');-- Test for values that are simple ASCII text and bypass other tests if trueif capture == v then-- if same there are no unicode charactersreturn;endwhile cfg.invisible_chars[i] dolocal char=cfg.invisible_chars[i][1]-- the character or group namelocal pattern=cfg.invisible_chars[i][2]-- the pattern used to find itposition, dummy, capture = mw.ustring.find (v, pattern)-- see if the parameter value contains characters that match the patternif position and (char == 'zero width joiner') then-- if we found a zero width joiner characterif mw.ustring.find (v, cfg.indic_script) then-- its ok if one of the indic scriptsposition = nil;-- unset positionendendif position thenif 'nowiki' == capture or 'math' == capture or-- nowiki and math stripmarkers (not an error condition)('templatestyles' == capture and in_array (param, {'id', 'quote'})) then-- templatestyles stripmarker allowed in these parametersstripmarker = true;-- set a flagelseif true == stripmarker and 'delete' == char then-- because stripmakers begin and end with the delete char, assume that we've found one end of a stripmarkerposition = nil;-- unsetelselocal err_msg;if capture thenerr_msg = capture .. ' ' .. char;elseerr_msg = char .. ' ' .. 'character';endtable.insert( z.message_tail, { set_error( 'invisible_char', {err_msg, wrap_style ('parameter', param), position}, true ) } );-- add error messagereturn;-- and done with this parameterendendi=i+1;-- bump our indexendend--[[--------------------------< A R G U M E N T _ W R A P P E R >----------------------------------------------Argument wrapper.  This function provides support for argument mapping defined in the configuration file so thatmultiple names can be transparently aliased to single internal variable.]]local 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] = select_one( 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'] .. ': ' .. k);end-- Empty strings, not nil;if v == nil then--v = cfg.defaults[k] or '';v = '';origin[k] = '';endtbl = rawset( tbl, k, v );return v;end,});end--[[--------------------------< N O W R A P _ D A T E >--------------------------------------------------------When date is YYYY-MM-DD format wrap in nowrap span: <span ...>YYYY-MM-DD</span>.  When date is DD MMMM YYYY or isMMMM DD, YYYY then wrap in nowrap span: <span ...>DD MMMM</span> YYYY or <span ...>MMMM DD,</span> YYYYDOES NOT yet support MMMM YYYY or any of the date ranges.]]local function nowrap_date (date)local cap='';local cap2='';if date:match("^%d%d%d%d%-%d%d%-%d%d$") thendate = substitute (cfg.presentation['nowrap1'], date);elseif date:match("^%a+%s*%d%d?,%s+%d%d%d%d$") or date:match ("^%d%d?%s*%a+%s+%d%d%d%d$") thencap, cap2 = string.match (date, "^(.*)%s+(%d%d%d%d)$");date = substitute (cfg.presentation['nowrap2'], {cap, cap2});endreturn date;end--[[--------------------------< S E T _ T I T L E T Y P E >----------------------------------------------------This function sets default title types (equivalent to the citation including |type=<default value>) for those templates that have defaults.Also handles the special case where it is desirable to omit the title type from the rendered citation (|type=none).]]local function set_titletype (cite_class, title_type)if is_set(title_type) thenif cfg.keywords_xlate[title_type] == 'none' thentitle_type = "";-- if |type=none then type parameter not displayedendreturn title_type;-- if |type= has been set to any other value use that valueendreturn cfg.title_types [cite_class] or '';-- set template's default title type; else empty string for concatenationend--[[--------------------------< H Y P H E N _ T O _ D A S H >--------------------------------------------------Converts a hyphen to a dash under certain conditions.  The hyphen must separate like items; unlike items arereturned unmodified.  These forms are modified:letter - letter (A - B)digit - digit (4-5)digit separator digit - digit separator digit (4.1-4.5 or 4-1-4-5)letterdigit - letterdigit (A1-A5) (an optional separator between letter and digit is supported – a.1-a.5 or a-1-a-5)digitletter - digitletter (5a - 5d) (an optional separator between letter and digit is supported – 5.a-5.d or 5-a-5-d)any other forms are returned unmodified.str may be a comma- or semicolon-separated list]]local function hyphen_to_dash( str )if not is_set (str) thenreturn str;endstr, count = str:gsub ('^%(%((.+)%)%)$', '%1');-- remove accept-this-as-written markup when it wraps all of strif 0 ~= count then-- non-zero when markup removed; zero elsereturn str;-- nothing to do, we're doneendstr = str:gsub ('&[nm]dash;', {['&ndash;'] = '–', ['&mdash;'] = '—'});-- replace &mdash; and &ndash; entities  with their characters; semicolon mucks up the text.splitstr = str:gsub ('&#45;', '-');-- replace html numeric entity with hyphen characterstr = str:gsub ('&nbsp;', ' ');-- replace &nbsp; entity with generic keyboard space characterlocal out = {};local list = mw.text.split (str, '%s*[,;]%s*');-- split str at comma or semicolon separators if there are anyfor _, item in ipairs (list) do-- for each item in the listif mw.ustring.match (item, '^%w*[%.%-]?%w+%s*[%-–—]%s*%w*[%.%-]?%w+$') then-- if a hyphenated range or has endash or emdash separatorsif item:match ('^%a+[%.%-]?%d+%s*%-%s*%a+[%.%-]?%d+$') or-- letterdigit hyphen letterdigit (optional separator between letter and digit)item:match ('^%d+[%.%-]?%a+%s*%-%s*%d+[%.%-]?%a+$') or-- digitletter hyphen digitletter (optional separator between digit and letter)item:match ('^%d+[%.%-]%d+%s*%-%s*%d+[%.%-]%d+$') or-- digit separator digit hyphen digit separator digititem:match ('^%d+%s*%-%s*%d+$') or-- digit hyphen digititem:match ('^%a+%s*%-%s*%a+$') then-- letter hyphen letteritem = item:gsub ('(%w*[%.%-]?%w+)%s*%-%s*(%w*[%.%-]?%w+)', '%1–%2');-- replace hyphen, remove extraneous space characterselseitem = mw.ustring.gsub (item, '%s*[–—]%s*', '–');-- for endash or emdash separated ranges, replace em with en, remove extraneous white spaceendenditem = item:gsub ('^%(%((.+)%)%)$', '%1');-- remove the accept-this-as-written markuptable.insert (out, item);-- add the (possibly modified) item to the output tableendreturn table.concat (out, ', ');-- concatenate the output table into a comma separated stringend--[[--------------------------< S A F E _ J O I N >------------------------------------------------------------Joins a sequence of strings together while checking for duplicate separation characters.]]local function safe_join( tbl, duplicate_char )local f = {};-- create a function table appropriate to type of 'dupicate character'if 1 == #duplicate_char then-- for single byte ascii characters use the string library functionsf.gsub=string.gsubf.match=string.matchf.sub=string.subelse-- for multi-byte characters use the ustring library functionsf.gsub=mw.ustring.gsubf.match=mw.ustring.matchf.sub=mw.ustring.subendlocal str = '';-- the output stringlocal comp = '';-- what does 'comp' mean?local end_chr = '';local trim;for _, value in ipairs( tbl ) doif value == nil then value = ''; endif str == '' then-- if output string is emptystr = value;-- assign value to it (first time through the loop)elseif value ~= '' thenif value:sub(1,1) == '<' then-- Special case of values enclosed in spans and other markup.comp = value:gsub( "%b<>", "" );-- remove html markup (<span>string</span> -> string)elsecomp = value;end-- typically duplicate_char is sepcif f.sub(comp, 1,1) == duplicate_char then-- is first character same as duplicate_char? why test first character?--   Because individual string segments often (always?) begin with terminal punct for the--   preceding segment: 'First element' .. 'sepc next element' .. etc?trim = false;end_chr = f.sub(str, -1,-1);-- get the last character of the output string-- str = str .. "<HERE(enchr=" .. end_chr.. ")"-- debug stuff?if end_chr == duplicate_char then-- if same as separatorstr = f.sub(str, 1,-2);-- remove itelseif end_chr == "'" then-- if it might be wikimarkupif f.sub(str, -3,-1) == duplicate_char .. "''" then-- if last three chars of str are sepc'' str = f.sub(str, 1, -4) .. "''";-- remove them and add back ''elseif  f.sub(str, -5,-1) == duplicate_char .. "]]''" then-- if last five chars of str are sepc]]'' trim = true;-- why? why do this and next differently from previous?elseif f.sub(str, -4,-1) == duplicate_char .. "]''" then-- if last four chars of str are sepc]'' trim = true;-- same questionendelseif end_chr == "]" then-- if it might be wikimarkupif f.sub(str, -3,-1) == duplicate_char .. "]]" then-- if last three chars of str are sepc]] wikilink trim = true;elseif f.sub(str, -3,-1) == duplicate_char .. '"]' then-- if last three chars of str are sepc"] quoted external link trim = true;elseif  f.sub(str, -2,-1) == duplicate_char .. "]" then-- if last two chars of str are sepc] external linktrim = true;elseif f.sub(str, -4,-1) == duplicate_char .. "'']" then-- normal case when |url=something & |title=Title.trim = true;endelseif end_chr == " " then-- if last char of output string is a spaceif f.sub(str, -2,-1) == duplicate_char .. " " then-- if last two chars of str are <sepc><space>str = f.sub(str, 1,-3);-- remove them bothendendif trim thenif value ~= comp then -- value does not equal comp when value contains html markuplocal dup2 = duplicate_char;if f.match(dup2, "%A" ) then dup2 = "%" .. dup2; end-- if duplicate_char not a letter then escape itvalue = f.gsub(value, "(%b<>)" .. dup2, "%1", 1 )-- remove duplicate_char if it follows html markupelsevalue = f.sub(value, 2, -1 );-- remove duplicate_char when it is first characterendendendstr = str .. value;--add it to the output stringendendreturn str;end--[[--------------------------< I S _ S U F F I X >------------------------------------------------------------returns true is suffix is properly formed Jr, Sr, or ordinal in the range 2–9.  Puncutation not allowed.]]local function is_suffix (suffix)if in_array (suffix, {'Jr', 'Sr', '2nd', '3rd'}) or suffix:match ('^%dth$') thenreturn true;endreturn false;end--[[--------------------------< I S _ G O O D _ V A N C _ N A M E >--------------------------------------------For Vancouver Style, author/editor names are supposed to be rendered in Latin (read ASCII) characters.  When a nameuses characters that contain diacritical marks, those characters are to converted to the corresponding Latin character.When a name is written using a non-Latin alphabet or logogram, that name is to be transliterated into Latin characters.These things are not currently possible in this module so are left to the editor to do.This test allows |first= and |last= names to contain any of the letters defined in the four Unicode Latin character sets[http://www.unicode.org/charts/PDF/U0000.pdf C0 Controls and Basic Latin] 0041–005A, 0061–007A[http://www.unicode.org/charts/PDF/U0080.pdf C1 Controls and Latin-1 Supplement] 00C0–00D6, 00D8–00F6, 00F8–00FF[http://www.unicode.org/charts/PDF/U0100.pdf Latin Extended-A] 0100–017F[http://www.unicode.org/charts/PDF/U0180.pdf Latin Extended-B] 0180–01BF, 01C4–024F|lastn= also allowed to contain hyphens, spaces, and apostrophes. (http://www.ncbi.nlm.nih.gov/books/NBK7271/box/A35029/)|firstn= also allowed to contain hyphens, spaces, apostrophes, and periodsThis original test:if nil == mw.ustring.find (last, "^[A-Za-zÀ-ÖØ-öø-ƿDŽ-ɏ%-%s%']*$") or nil == mw.ustring.find (first, "^[A-Za-zÀ-ÖØ-öø-ƿDŽ-ɏ%-%s%'%.]+[2-6%a]*$") thenwas written ouside of the code editor and pasted here because the code editor gets confused between character insertion point and cursor position.The test has been rewritten to use decimal character escape sequence for the individual bytes of the unicode characters so that it is not necessaryto use an external editor to maintain this code.\195\128-\195\150 – À-Ö (U+00C0–U+00D6 – C0 controls)\195\152-\195\182 – Ø-ö (U+00D8-U+00F6 – C0 controls)\195\184-\198\191 – ø-ƿ (U+00F8-U+01BF – C0 controls, Latin extended A & B)\199\132-\201\143 – DŽ-ɏ (U+01C4-U+024F – Latin extended B)]]local function is_good_vanc_name (last, first)local first, suffix = first:match ('(.-),?%s*([%dJS][%drndth]+)%.?$') or first;-- if first has something that looks like a generational suffix, get itif is_set (suffix) thenif not is_suffix (suffix) thenadd_vanc_error (cfg.err_msg_supl.suffix);return false;-- not a name with an appropriate suffixendendif nil == mw.ustring.find (last, "^[A-Za-z\195\128-\195\150\195\152-\195\182\195\184-\198\191\199\132-\201\143%-%s%']*$") ornil == mw.ustring.find (first, "^[A-Za-z\195\128-\195\150\195\152-\195\182\195\184-\198\191\199\132-\201\143%-%s%'%.]*$") thenadd_vanc_error (cfg.err_msg_supl['non-Latin character']);return false;-- not a string of latin characters; Vancouver requires Romanizationend;return true;end--[[--------------------------< R E D U C E _ T O _ I N I T I A L S >------------------------------------------Attempts to convert names to initials in support of |name-list-format=vanc.  Names in |firstn= may be separated by spaces or hyphens, or for initials, a period. See http://www.ncbi.nlm.nih.gov/books/NBK7271/box/A35062/.Vancouver style requires family rank designations (Jr, II, III, etc) to be rendered as Jr, 2nd, 3rd, etc.  See http://www.ncbi.nlm.nih.gov/books/NBK7271/box/A35085/.This code only accepts and understands generational suffix in the Vancouver format because Roman numerals look like, and can be mistaken for, initials.This function uses ustring functions because firstname initials may be any of the unicode Latin characters accepted by is_good_vanc_name ().]]local function reduce_to_initials(first)local name, suffix = mw.ustring.match(first, "^(%u+) ([%dJS][%drndth]+)$");if not name then-- if not initials and a suffixname = mw.ustring.match(first, "^(%u+)$");-- is it just intials?endif name then-- if first is initials with or without suffixif 3 > mw.ustring.len (name) then-- if one or two initialsif suffix then-- if there is a suffixif is_suffix (suffix) then-- is it legitimate?return first;-- one or two initials and a valid suffix so nothing to doelseadd_vanc_error (cfg.err_msg_supl.suffix);-- one or two initials with invalid suffix so error messagereturn first;-- and return first unmolestedendelsereturn first;-- one or two initials without suffix; nothing to doendendend-- if here then name has 3 or more uppercase letters so treat them as a wordlocal initials, names = {}, {};-- tables to hold name parts and initialslocal i = 1;-- counter for number of initialsnames = mw.text.split (first, '[%s,]+');-- split into a table of names and possible suffixwhile names[i] do-- loop through the tableif 1 < i and names[i]:match ('[%dJS][%drndth]+%.?$') then-- if not the first name, and looks like a suffix (may have trailing dot)names[i] = names[i]:gsub ('%.', '');-- remove terminal dot if presentif is_suffix (names[i]) then-- if a legitimate suffixtable.insert (initials, ' ' .. names[i]);-- add a separator space, insert at end of initials tablebreak;-- and done because suffix must fall at the end of a nameend-- no error message if not a suffix; possibly because of Romanizationendif 3 > i thentable.insert (initials, mw.ustring.sub(names[i],1,1));-- insert the intial at end of initials tableendi = i+1;-- bump the counterendreturn table.concat(initials)-- Vancouver format does not include spaces.end--[[--------------------------< L I S T  _ P E O P L E >-------------------------------------------------------Formats a list of people (e.g. authors / editors) ]]local function list_people(control, people, etal)local sep;local namesep;local format = control.formatlocal maximum = control.maximumlocal lastauthoramp = control.lastauthoramp;local text = {}if 'vanc' == format then-- Vancouver-like author/editor name styling?sep = cfg.presentation['sep_nl_vanc'];-- name-list separator between authors is a commanamesep = cfg.presentation['sep_name_vanc'];-- last/first separator is a spacelastauthoramp = nil;-- unset because isn't used by Vancouver styleelsesep = cfg.presentation['sep_nl'];-- name-list separator between authors is a semicolonnamesep = cfg.presentation['sep_name'];-- last/first separator is <comma><space>endif sep:sub(-1,-1) ~= " " then sep = sep .. " " endif is_set (maximum) and maximum < 1 then return "", 0; end-- returned 0 is for EditorCount; not used for authorsfor i,person in ipairs(people) doif is_set(person.last) thenlocal mask = person.masklocal onelocal sep_one = sep;if is_set (maximum) 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) thenif ( "vanc" == format ) then-- if vancouver formatone = one:gsub ('%.', '');-- remove periods from surnames (http://www.ncbi.nlm.nih.gov/books/NBK7271/box/A35029/)if not person.corporate and is_good_vanc_name (one, first) then-- and name is all Latin characters; corporate authors not testedfirst = reduce_to_initials(first)-- attempt to convert first name(s) to initialsendendone = one .. namesep .. first;endendif is_set (person.link) thenone = make_wikilink (person.link, one);-- link author/editorendtable.insert (text, one)table.insert (text, sep_one)endendlocal count = #text / 2;-- (number of names + number of separators) divided by 2if count > 0 then if count > 1 and is_set(lastauthoramp) and not etal thentext[#text-2] = " & ";-- replace last separator with ampersand textendtext[#text] = nil;-- erase the last separatorendlocal result = table.concat(text)-- construct listif etal and is_set (result) then-- etal may be set by |display-authors=etal but we might not have a last-first listresult = result .. sep .. ' ' .. cfg.messages['et al'];-- we've go a last-first list and etal so add et al.endreturn result, countend--[[--------------------------< A N C H O R _ I D >------------------------------------------------------------Generates a CITEREF anchor ID if we have at least one name or a date.  Otherwise returns an empty string.namelist is one of the contributor-, author-, or editor-name lists chosen in that order.  year is Year or anchor_year.]]local function anchor_id (namelist, year)local names={};-- a table for the one to four names and yearfor i,v in ipairs (namelist) do-- loop through the list and take up to the first four last namesnames[i] = v.last if i == 4 then break end-- if four then doneendtable.insert (names, year);-- add the year at the endlocal id = table.concat(names);-- concatenate names and year for CITEREF idif is_set (id) then-- if concatenation is not an empty stringreturn "CITEREF" .. id;-- add the CITEREF portionelsereturn '';-- return an empty string; no reason to include CITEREF id in this citationendend--[[--------------------------< N A M E _ H A S _ E T A L >----------------------------------------------------Evaluates the content of name parameters (author, editor, etc) for variations on the theme of et al.  If found,the et al. is removed, a flag is set to true and the function returns the modified name and the flag.This function never sets the flag to false but returns it's previous state because it may have been set byprevious passes through this function or by the associated |display-<names>=etal parameter]]local function name_has_etal (name, etal, nocat, param)if is_set (name) then-- name can be nil in which case just returnlocal patterns = cfg.et_al_patterns;--get patterns from configurationfor _, pattern in ipairs (patterns) do-- loop through all of the patternsif name:match (pattern) then-- if this 'et al' pattern is found in namename = name:gsub (pattern, '');-- remove the offending textetal = true;-- set flag (may have been set previously here or by |display-<names>=etal)if not nocat then-- no categorization for |vauthors=table.insert( z.message_tail, {set_error ('etal', {param})});-- and set an error if not addedendendendendreturn name, etal;-- end--[[--------------------------< N A M E _ I S _ N U M E R I C >------------------------------------------------Add maint cat when name parameter value does not contain letters.  Does not catch mixed alphanumeric names so|last=A. Green (1922-1987) does not get caught in the current version of this test but |first=(1888) is caught.returns nothing]]local function name_is_numeric (name, list_name)if is_set (name) thenif mw.ustring.match (name, '^[%A]+$') then-- when name does not contain any lettersadd_maint_cat ('numeric_names', cfg.special_case_translation [list_name]);-- add a maint cat for this templateendendend--[[--------------------------< N A M E _ H A S _ E D _ M A R K U P >------------------------------------------Evaluates the content of author and editor parameters for extranious editor annotations: ed, ed., eds, (Ed.), etc.These annotation do not belong in author parameters and are redundant in editor parameters.  If found, the functionadds the editor markup maintenance category.returns nothing]]local function name_has_ed_markup (name, list_name)local patterns = cfg.editor_markup_patterns;-- get patterns from configurationif is_set (name) thenfor _, pattern in ipairs (patterns) do-- spin through patterns table andif name:match (pattern) thenadd_maint_cat ('extra_text_names', cfg.special_case_translation [list_name]);-- add a maint cat for this templatebreak;endendendend--[[--------------------------< N A M E _ H A S _ M U L T _ N A M E S >----------------------------------------Evaluates the content of author and editor (surnames only) parameters for multiple names.  Multiple names areindicated if there is more than one comma and or semicolon.  If found, the function adds the multiple name(author or editor) maintenance category.returns nothing]]local function name_has_mult_names (name, list_name)local _, count;if is_set (name) then_, count = name:gsub ('[;,]', '');-- count the number of separator-like charactersif 1 < count then-- param could be |author= or |editor= so one separator character is acceptableadd_maint_cat ('mult_names', cfg.special_case_translation [list_name]);-- more than one separator indicates multiple names so add a maint cat for this templateendendend--[[--------------------------< N A M E _ C H E C K S >--------------------------------------------------------This function calls various name checking functions used to validate the content of the various name-holdingparameters.]]local function name_checks (last, first, list_name)if is_set (last) thenif last:match ('^%(%(.*%)%)$') then-- if wrapped in doubled parentheses, accept as written last = last:match ('^%(%((.*)%)%)$');-- strip parenselsename_has_mult_names (last, list_name);-- check for multiple names in the parameter (last only)name_has_ed_markup (last, list_name);-- check for extraneous 'editor' annotationname_is_numeric (last, list_name);-- check for names that are compsed of digits and punctuationendendif is_set (first) thenif first:match ('^%(%(.*%)%)$') then-- if wrapped in doubled parentheses, accept as written first = first:match ('^%(%((.*)%)%)$');-- strip parenselsename_has_ed_markup (first, list_name);-- check for extraneous 'editor' annotationname_is_numeric (first, list_name);-- check for names that are compsed of digits and punctuationendendreturn last, first;-- doneend--[[--------------------------< E X T R A C T _ N A M E S >----------------------------------------------------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=.When an author or editor parameter contains some form of 'et al.', the 'et al.' is stripped from the parameter and a flag (etal) returnedthat will cause list_people() to add the static 'et al.' text from Module:Citation/CS1/Configuration.  This keeps 'et al.' out of the template's metadata.  When this occurs, the page is added to a maintenance category.]]local function extract_names(args, list_name)local names = {};-- table of nameslocal last;-- individual name componentslocal first;local link;local mask;local i = 1;-- loop counter/indexerlocal n = 1;-- output table 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 etal=false;-- return value set to true when we find some form of et al. in an author parameterlocal last_alias, first_alias, link_alias;-- selected parameter aliases used in error messagingwhile true dolast, last_alias = select_one( args, cfg.aliases[list_name .. '-Last'], 'redundant_parameters', i );-- search through args for name components beginning at 1first, first_alias = select_one( args, cfg.aliases[list_name .. '-First'], 'redundant_parameters', i );link, link_alias = select_one( args, cfg.aliases[list_name .. '-Link'], 'redundant_parameters', i );mask = select_one( args, cfg.aliases[list_name .. '-Mask'], 'redundant_parameters', i );last, etal = name_has_etal (last, etal, false, last_alias);-- find and remove variations on et al.first, etal = name_has_etal (first, etal, false, first_alias);-- find and remove variations on et al.last, first= name_checks (last, first, list_name);-- multiple names, extraneous annotation, etc checksif first and not last then-- if there is a firstn without a matching lastntable.insert( z.message_tail, { set_error( 'first_missing_last', {first_alias, first_alias:gsub('first', 'last')}, true ) } );-- add this error messageelseif not first and not 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-- we have last with or without a firstlink_title_ok (link, link_alias, last, last_alias);-- check for improper wikimarkupif first thenlink_title_ok (link, link_alias, first, first_alias);-- check for improper wikimarkupendnames[n] = {last = last, first = first, link = link, mask = mask, corporate=false};-- add this name to our names list (corporate for |vauthors= only)n = n + 1;-- point to next location in the names tableif 1 == count then-- if the previous name was missingtable.insert( z.message_tail, { set_error( 'missing_name', {list_name:match ("(%w+)List"):lower(), i-1}, true ) } );-- add this error messageendcount = 0;-- reset the counter, we're looking for two consecutive missing namesendi = i + 1;-- point to next args locationendreturn names, etal;-- all done, return our list of namesend--[[--------------------------< G E T _ I S O 6 3 9 _ C O D E >------------------------------------------------Validates language names provided in |language= parameter if not an ISO639-1 or 639-2 code.Returns the language name and associated two- or three-character code.  Because case of the source may be incorrector different from the case that WikiMedia uses, the name comparisons are done in lower case and when a match isfound, the Wikimedia version (assumed to be correct) is returned along with the code.  When there is no match, wereturn the original language name string.mw.language.fetchLanguageNames(<local wiki language>, 'all') returns a list of languages that in some cases may includeextensions. For example, code 'cbk-zam' and its associated name 'Chavacano de Zamboanga' (MediaWiki does not supportcode 'cbk' or name 'Chavacano'.  Most (all?) of these languages are not used a 'language' codes per se, rather theyare used as sub-domain names: cbk-zam.wikipedia.org.  A list of language names and codes supported by fetchLanguageNames()can be found at Template:Citation Style documentation/language/docNames that are included in the list will be found if that name is provided in the |language= parameter.  For example,if |language=Chavacano de Zamboanga, that name will be found with the associated code 'cbk-zam'.  When names are foundand the associated code is not two or three characters, this function returns only the WikiMedia language name.Some language names have multiple entries under different codes:Aromanian has code rup and code roa-rupWhen this occurs, this function returns the language name and the 2- or 3-character codeAdapted from code taken from Module:Check ISO 639-1.]]local function get_iso639_code (lang, this_wiki_code)if cfg.lang_name_remap[lang:lower()] then-- if there is a remapped name (because MediaWiki uses something that we don't think is correct)return cfg.lang_name_remap[lang:lower()][1], cfg.lang_name_remap[lang:lower()][2];-- for this language 'name', return a possibly new name and appropriate codeendlocal ietf_code;-- because some languages have both ietf-like codes and iso 639-like codeslocal ietf_name;local languages = mw.language.fetchLanguageNames(this_wiki_code, 'all')-- get a list of language names known to Wikimedia-- ('all' is required for North Ndebele, South Ndebele, and Ojibwa)local langlc = mw.ustring.lower(lang);-- lower case version for comparisonsfor code, name in pairs(languages) do-- scan the list to see if we can find our languageif langlc == mw.ustring.lower(name) thenif 2 == code:len() or 3 == code:len() then-- two- or three-character codes only; extensions not supportedreturn name, code;-- so return the name and the codeendietf_code = code;-- remember that we found an ietf-like code and save its nameietf_name = name;-- but keep looking for a 2- or 3-char codeendend-- didn't find name with 2- or 3-char code; if ietf-like code found returnreturn ietf_code and ietf_name or lang;-- associated name; return original language text elseend--[[--------------------------< L A N G U A G E _ P A R A M E T E R >------------------------------------------Gets language name from a provided two- or three-character ISO 639 code.  If a code is recognized by MediaWiki,use the returned name; if not, then use the value that was provided with the language parameter.When |language= contains a recognized language (either code or name), the page is assigned to the category forthat code: Category:Norwegian-language sources (no).  For valid three-character code languages, the page is assignedto the single category for '639-2' codes: Category:CS1 ISO 639-2 language sources.Languages that are the same as the local wiki are not categorized.  MediaWiki does not recognize three-characterequivalents of two-character codes: code 'ar' is recognized but code 'ara' is not.This function supports multiple languages in the form |language=nb, French, th where the language names or codes areseparated from each other by commas with optional space characters.]]local function language_parameter (lang)local code;-- the two- or three-character language codelocal name;-- the language namelocal language_list = {};-- table of language names to be renderedlocal names_table = {};-- table made from the value assigned to |language=local this_wiki_name = mw.language.fetchLanguageName(cfg.this_wiki_code, cfg.this_wiki_code);-- get this wiki's language namenames_table = mw.text.split (lang, '%s*,%s*');-- names should be a comma separated listfor _, lang in ipairs (names_table) do-- reuse langname = cfg.lang_code_remap[lang:lower()];-- first see if this is a code that is not supported by MediaWiki but is in remapif name then-- there was a remapped code soif not lang:match ('^%a%a%a?%-x%-%a+$') then-- if not a private ietf taglang = lang:gsub ('^(%a%a%a?)%-.*', '%1');-- strip ietf tags from codeendelselang = lang:gsub ('^(%a%a%a?)%-.*', '%1');-- strip any ietf-like tags from codeif 2 == lang:len() or 3 == lang:len() then-- if two-or three-character codename = mw.language.fetchLanguageName (lang:lower(), cfg.this_wiki_code);-- get language name if |language= is a proper codeendendif is_set (name) then-- if |language= specified a valid codecode = lang:lower();-- save itelsename, code = get_iso639_code (lang, cfg.this_wiki_code);-- attempt to get code from name (assign name here so that we are sure of proper capitalization)endif is_set (code) then-- only 2- or 3-character codesname = cfg.lang_code_remap[code] or name;-- override wikimedia when they misuse language codes/namesif cfg.this_wiki_code ~= code then-- when the language is not the same as this wiki's languageif 2 == code:len() then-- and is a two-character codeadd_prop_cat ('foreign_lang_source' .. code, {name, code});-- categorize it; code appended to allow for multiple language categorizationelse-- or is a recognized language (but has a three-character code)add_prop_cat ('foreign_lang_source_2' .. code, {code});-- categorize it differently TODO: support mutliple three-character code categories per cs1|2 templateendelseif cfg.local_lang_cat_enable then-- when the language and this wiki's language are the same and categorization is enabledadd_prop_cat ('local_lang_source', {name, code});-- categorize itendelseadd_maint_cat ('unknown_lang');-- add maint category if not already addedendtable.insert (language_list, name);name = '';-- so we can reuse itendcode = #language_list-- reuse code as number of languages in the listif 2 >= code thenname = table.concat (language_list, cfg.messages['parameter-pair-separator'])-- insert '<space>and<space>' between two language nameselseif 2 < code thenname = table.concat (language_list, cfg.messages['parameter-separator'], 1, code-1);-- concatenate all but lastname = table.concat ({name, language_list[code]}, cfg.messages['parameter-final-separator']);-- concatenate last with final separatorendif this_wiki_name == name thenreturn '';-- if one language and that language is this wiki's return an empty string (no annotation)endreturn (" " .. wrap_msg ('language', name));-- otherwise wrap with '(in ...)'--[[ TODO: should only return blank or name rather than full listso we can clean up the bunched parenthetical elements Language, Type, Format]]end--[[--------------------------< S E T _ C S 1 _ S T Y L E >----------------------------------------------------Set style settings for CS1 citation templates. Returns separator and postscript settingsAt en.wiki, for cs1:ps gets:'.'sep gets:'.']]local function set_cs1_style (ps)if not is_set (ps) then-- unless explicitly set to somethingps = cfg.presentation['ps_cs1'];-- terminate the rendered citationendreturn cfg.presentation['sep_cs1'], ps;-- element separatorend--[[--------------------------< S E T _ C S 2 _ S T Y L E >----------------------------------------------------Set style settings for CS2 citation templates. Returns separator, postscript, ref settingsAt en.wiki, for cs2:ps gets:'' (empty string - no terminal punctuation)sep gets:',']]local function set_cs2_style (ps, ref)if not is_set (ps) then-- if |postscript= has not been set, set cs2 defaultps = cfg.presentation['ps_cs2'];-- terminate the rendered citationendif not is_set (ref) then-- if |ref= is not setref = "harv";-- set default |ref=harvendreturn cfg.presentation['sep_cs2'], ps, ref;-- element separatorend--[[--------------------------< G E T _ S E T T I N G S _ F R O M _ C I T E _ C L A S S >----------------------When |mode= is not set or when its value is invalid, use config.CitationClass and parameter values to establishrendered style.]]local function get_settings_from_cite_class (ps, ref, cite_class)local sep;if (cite_class == "citation") then-- for citation templates (CS2)sep, ps, ref = set_cs2_style (ps, ref);else-- not a citation template so CS1sep, ps = set_cs1_style (ps);endreturn sep, ps, ref-- return them allend--[[--------------------------< S E T _ S T Y L E >------------------------------------------------------------Establish basic style settings to be used when rendering the citation.  Uses |mode= if set and valid or usesconfig.CitationClass from the template's #invoke: to establish style.]]local function set_style (mode, ps, ref, cite_class)local sep;if 'cs2' == mode then-- if this template is to be rendered in CS2 (citation) stylesep, ps, ref = set_cs2_style (ps, ref);elseif 'cs1' == mode then-- if this template is to be rendered in CS1 (cite xxx) stylesep, ps = set_cs1_style (ps);else-- anything but cs1 or cs2sep, ps, ref = get_settings_from_cite_class (ps, ref, cite_class);-- get settings based on the template's CitationClassendif cfg.keywords_xlate[ps:lower()] == 'none' then-- if assigned value is 'none' thenps = '';-- set to empty stringendreturn sep, ps, refend--[=[-------------------------< I S _ P D F >------------------------------------------------------------------Determines if a url has the file extension that is one of the pdf file extensions used by [[MediaWiki:Common.css]] whenapplying the pdf icon to external links.returns true if file extension is one of the recognized extensions, else false]=]local function is_pdf (url)return url:match ('%.pdf$') or url:match ('%.PDF$') orurl:match ('%.pdf[%?#]') or url:match ('%.PDF[%?#]') orurl:match ('%.PDF&#035') or url:match ('%.pdf&#035');end--[[--------------------------< S T Y L E _ F O R M A T >------------------------------------------------------Applies css style to |format=, |chapter-format=, etc.  Also emits an error message if the format parameter doesnot have a matching url parameter.  If the format parameter is not set and the url contains a file extension thatis recognized as a pdf document by MediaWiki's commons.css, this code will set the format parameter to (PDF) withthe appropriate styling.]]local function style_format (format, url, fmt_param, url_param)if is_set (format) thenformat = wrap_style ('format', format);-- add leading space, parentheses, resizeif not is_set (url) thenformat = format .. set_error( 'format_missing_url', {fmt_param, url_param} );-- add an error messageendelseif is_pdf (url) then-- format is not set so if url is a pdf file thenformat = wrap_style ('format', 'PDF');-- set format to pdfelseformat = '';-- empty string for concatenationendreturn format;end--[[--------------------------< G E T _ D I S P L A Y _ N A M E S >--------------------------------------------Returns a number that defines the number of names displayed for author and editor name lists and a boolean flagto indicate when et al. should be appended to the name list.When the value assigned to |display-xxxxors= is a number greater than or equal to zero, return the number andthe previous state of the 'etal' flag (false by default but may have been set to true if the name list containssome variant of the text 'et al.').When the value assigned to |display-xxxxors= is the keyword 'etal', return a number that is one greater than thenumber of authors in the list and set the 'etal' flag true.  This will cause the list_people() to display all ofthe names in the name list followed by 'et al.'In all other cases, returns nil and the previous state of the 'etal' flag.inputs:max: A['DisplayAuthors'] or A['DisplayEditors']; a number or some flavor of etalcount: #a or #elist_name: 'authors' or 'editors'etal: author_etal or editor_etal]]local function get_display_names (max, count, list_name, etal)if is_set (max) thenif 'etal' == max:lower():gsub("[ '%.]", '') then-- the :gsub() portion makes 'etal' from a variety of 'et al.' spellings and stylingsmax = count + 1;-- number of authors + 1 so display all author name plus et al.etal = true;-- overrides value set by extract_names()elseif max:match ('^%d+$') then-- if is a string of numbersmax = tonumber (max);-- make it a numberif max >= count then-- if |display-xxxxors= value greater than or equal to number of authors/editorsadd_maint_cat ('disp_name', cfg.special_case_translation [list_name]);endelse-- not a valid keyword or numbertable.insert( z.message_tail, { set_error( 'invalid_param_val', {'display-' .. list_name, max}, true ) } );-- add error messagemax = nil;-- unset; as if |display-xxxxors= had not been setendendreturn max, etal;end--[[--------------------------< E X T R A _ T E X T _ I N _ P A G E _ C H E C K >------------------------------Adds page to Category:CS1 maint: extra text if |page= or |pages= has what appears to be some form of p. or pp. abbreviation in the first characters of the parameter content.check Page and Pages for extraneous p, p., pp, and pp. at start of parameter value:good pattern: '^P[^%.P%l]' matches when |page(s)= begins PX or P# but not Px where x and X are letters and # is a dgiitbad pattern: '^[Pp][Pp]' matches matches when |page(s)= begins pp or pP or Pp or PP]]local function extra_text_in_page_check (page)local good_pattern = '^P[^%.Pp]';-- ok to begin with uppercase P: P7 (pg 7 of section P) but not p123 (page 123) TODO: add Gg for PG or Pg?local bad_pattern = '^[Pp]?[Pp]%.?[ %d]';if not page:match (good_pattern) and (page:match (bad_pattern) or  page:match ('^[Pp]ages?')) thenadd_maint_cat ('extra_text');endend--[=[-------------------------< G E T _ V _ N A M E _ T A B L E >----------------------------------------------split apart a |vauthors= or |veditors= parameter.  This function allows for corporate names, wrapped in doubledparentheses to also have commas; in the old version of the code, the doubled parnetheses were included in therendered citation and in the metadata.  Individual author names may be wikilinked|vauthors=Jones AB, [[E. B. White|White EB]], ((Black, Brown, and Co.))]=]local function get_v_name_table (vparam, output_table, output_link_table)local name_table = mw.text.split(vparam, "%s*,%s*");-- names are separated by commaslocal wl_type, label, link;-- wl_type not used here; just a place holderlocal i = 1;while name_table[i] doif name_table[i]:match ('^%(%(.*[^%)][^%)]$') then-- first segment of corporate with one or more commas; this segment has the opening doubled parenslocal name = name_table[i];i=i+1;-- bump indexer to next segmentwhile name_table[i] doname = name .. ', ' .. name_table[i];-- concatenate with previous segmentsif name_table[i]:match ('^.*%)%)$') then-- if this table member has the closing doubled parensbreak;-- and done reassembling soendi=i+1;-- bump indexerendtable.insert (output_table, name);-- and add corporate name to the output tabletable.insert (output_link_table, '');-- no wikilinkelsewl_type, label, link = is_wikilink (name_table[i]);-- wl_type is: 0, no wl (text in label variable); 1, [[D]]; 2, [[L|D]]table.insert (output_table, label);-- add this nameif 1 == wl_type thentable.insert (output_link_table, label);-- simple wikilink [[D]]elsetable.insert (output_link_table, link);-- no wikilink or [[L|D]]; add this link if there is one, else empty stringendendi = i+1;endreturn output_table;end--[[--------------------------< P A R S E _ V A U T H O R S _ V E D I T O R S >--------------------------------This function extracts author / editor names from |vauthors= or |veditors= and finds matching |xxxxor-maskn= and|xxxxor-linkn= in args.  It then returns a table of assembled names just as extract_names() does.Author / editor names in |vauthors= or |veditors= must be in Vancouver system style. Corporate or institutional namesmay sometimes be required and because such names will often fail the is_good_vanc_name() and other format compliancetests, are wrapped in doubled paranethese ((corporate name)) to suppress the format tests.Supports generational suffixes Jr, 2nd, 3rd, 4th–6th.This function sets the vancouver error when a reqired comma is missing and when there is a space between an author's initials.]]local function parse_vauthors_veditors (args, vparam, list_name)local names = {};-- table of names assembled from |vauthors=, |author-maskn=, |author-linkn=local v_name_table = {};local v_link_table = {};-- when name is wikilinked, targets go in this tablelocal etal = false;-- return value set to true when we find some form of et al. vauthors parameterlocal last, first, link, mask, suffix;local corporate = false;vparam, etal = name_has_etal (vparam, etal, true);-- find and remove variations on et al. do not categorize (do it here because et al. might have a period)v_name_table = get_v_name_table (vparam, v_name_table, v_link_table);-- names are separated by commasfor i, v_name in ipairs(v_name_table) doif v_name:match ('^%(%(.+%)%)$') then-- corporate authors are wrapped in doubled parentheses to supress vanc formatting and error detectionfirst = '';-- set to empty string for concatenation and because it may have been set for previous author/editorlast = v_name:match ('^%(%((.+)%)%)$')-- remove doubled parnthesescorporate = true;-- flag used in list_people()elseif string.find(v_name, "%s") thenif v_name:find('[;%.]') then-- look for commonly occurring punctuation characters; add_vanc_error (cfg.err_msg_supl.punctuation);endlocal lastfirstTable = {}lastfirstTable = mw.text.split(v_name, "%s")first = table.remove(lastfirstTable);-- removes and returns value of last element in table which should be author intialsif is_suffix (first) then-- if a valid suffixsuffix = first-- save it as a suffix andfirst = table.remove(lastfirstTable);-- get what should be the initials from the tableend-- no suffix error message here because letter combination may be result of Romanization; check for digits?last = table.concat(lastfirstTable, " ")-- returns a string that is the concatenation of all other names that are not initialsif mw.ustring.match (last, '%a+%s+%u+%s+%a+') thenadd_vanc_error (cfg.err_msg_supl['missing comma']);-- matches last II last; the case when a comma is missingendif mw.ustring.match (v_name, ' %u %u$') then-- this test is in the wrong place TODO: move or replace with a more appropriate testadd_vanc_error (cfg.err_msg_supl.name);-- matches a space between two intiialsendelsefirst = '';-- set to empty string for concatenation and because it may have been set for previous author/editorlast = v_name;-- last name or single corporate name?  Doesn't support multiword corporate names? do we need this?endif is_set (first) thenif not mw.ustring.match (first, "^%u?%u$") then-- first shall contain one or two upper-case letters, nothing elseadd_vanc_error (cfg.err_msg_supl.initials);-- too many initials; mixed case initials (which may be ok Romanization); hyphenated initialsendis_good_vanc_name (last, first);-- check first and last before restoring the suffix which may have a non-Latin digitif is_set (suffix) thenfirst = first .. ' ' .. suffix;-- if there was a suffix concatenate with the initialssuffix = '';-- unset so we don't add this suffix to all subsequent namesendelseif not corporate thenis_good_vanc_name (last, '');endendlink = select_one( args, cfg.aliases[list_name .. '-Link'], 'redundant_parameters', i ) or v_link_table[i];mask = select_one( args, cfg.aliases[list_name .. '-Mask'], 'redundant_parameters', i );names[i] = {last = last, first = first, link = link, mask = mask, corporate=corporate};-- add this assembled name to our names listendreturn names, etal;-- all done, return our list of namesend--[[--------------------------< S E L E C T _ A U T H O R _ E D I T O R _ S O U R C E >------------------------Select one of |authors=, |authorn= / |lastn / firstn=, or |vauthors= as the source of the author name list orselect one of |editors=, |editorn= / editor-lastn= / |editor-firstn= or |veditors= as the source of the editor name list.Only one of these appropriate three will be used.  The hierarchy is: |authorn= (and aliases) highest and |authors= lowest andsimilarly, |editorn= (and aliases) highest and |editors= lowestWhen looking for |authorn= / |editorn= parameters, test |xxxxor1= and |xxxxor2= (and all of their aliases); stops after the secondtest which mimicks the test used in extract_names() when looking for a hole in the author name list.  There may be a betterway to do this, I just haven't discovered what that way is.Emits an error message when more than one xxxxor name source is provided.In this function, vxxxxors = vauthors or veditors; xxxxors = authors or editors as appropriate.]]local function select_author_editor_source (vxxxxors, xxxxors, args, list_name)local lastfirst = false;if select_one( args, cfg.aliases[list_name .. '-Last'], 'none', 1 ) or-- do this twice incase we have a |first1= without a |last1=; this ...select_one( args, cfg.aliases[list_name .. '-First'], 'none', 1 ) or-- ... also catches the case where |first= is used with |vauthors=select_one( args, cfg.aliases[list_name .. '-Last'], 'none', 2 ) orselect_one( args, cfg.aliases[list_name .. '-First'], 'none', 2 ) thenlastfirst=true;endif (is_set (vxxxxors) and true == lastfirst) or-- these are the three error conditions(is_set (vxxxxors) and is_set (xxxxors)) or(true == lastfirst and is_set (xxxxors)) thenlocal err_name;if 'AuthorList' == list_name then-- figure out which name should be used in error messageerr_name = 'author';elseerr_name = 'editor';endtable.insert( z.message_tail, { set_error( 'redundant_parameters',{err_name .. '-name-list parameters'}, true ) } );-- add error messageendif true == lastfirst then return 1 end;-- return a number indicating which author name source to useif is_set (vxxxxors) then return 2 end;if is_set (xxxxors) then return 3 end;return 1;-- no authors so return 1; this allows missing author name test to run in case there is a first without last end--[[--------------------------< I S _ V A L I D _ P A R A M E T E R _ V A L U E >------------------------------This function is used to validate a parameter's assigned value for those parameters that have only a limited numberof allowable values (yes, y, true, live, dead, etc).  When the parameter value has not been assigned a value (missingor empty in the source template) the function returns the value specified by ret_val.  If the parameter value is oneof the list of allowed values returns the translated value; else, emits an error message and returns the valuespecified by ret_val.]]local function is_valid_parameter_value (value, name, possible, ret_val)if not is_set (value) thenreturn ret_val;-- an empty parameter is okelseif in_array (value, possible) thenreturn cfg.keywords_xlate[value];-- return translation of parameter keywordelsetable.insert( z.message_tail, { set_error( 'invalid_param_val', {name, value}, true ) } );-- not an allowed value so add error messagereturn ret_val;endend--[[--------------------------< T E R M I N A T E _ N A M E _ L I S T >----------------------------------------This function terminates a name list (author, contributor, editor) with a separator character (sepc) and a spacewhen the last character is not a sepc character or when the last three characters are not sepc followed by twoclosing square brackets (close of a wikilink).  When either of these is true, the name_list is terminated with asingle space character.]]local function terminate_name_list (name_list, sepc)if (string.sub (name_list,-3,-1) == sepc .. '. ') then-- if already properly terminatedreturn name_list;-- just return the name listelseif (string.sub (name_list,-1,-1) == sepc) or (string.sub (name_list,-3,-1) == sepc .. ']]') then-- if last name in list ends with sepc charreturn name_list .. " ";-- don't add anotherelsereturn name_list .. sepc .. ' ';-- otherwise terninate the name listendend--[[-------------------------< F O R M A T _ V O L U M E _ I S S U E >----------------------------------------returns the concatenation of the formatted volume and issue parameters as a single string; or formatted volumeor formatted issue, or an empty string if neither are set.]]local function format_volume_issue (volume, issue, cite_class, origin, sepc, lower)if not is_set (volume) and not is_set (issue) thenreturn '';endif 'magazine' == cite_class or (in_array (cite_class, {'citation', 'map'}) and 'magazine' == origin) thenif is_set (volume) and is_set (issue) thenreturn wrap_msg ('vol-no', {sepc, volume, issue}, lower);elseif is_set (volume) thenreturn wrap_msg ('vol', {sepc, volume}, lower);elsereturn wrap_msg ('issue', {sepc, issue}, lower);endendif 'podcast' == cite_class and is_set (issue) thenreturn wrap_msg ('issue', {sepc, issue}, lower);endlocal vol = '';-- here for all cites except magazineif is_set (volume) thenif volume:match ('^[MDCLXVI]+$') or volume:match ('^%d+$')then-- volume value is all digits or all uppercase roman numeralsvol = substitute (cfg.presentation['vol-bold'], {sepc, hyphen_to_dash(volume)});-- render in bold faceelseif (4 < mw.ustring.len(volume)) then-- not all digits or roman numerals and longer than 4 charactersvol = substitute (cfg.messages['j-vol'], {sepc, volume});-- not boldadd_prop_cat ('long_vol');else-- four or less charactersvol = substitute (cfg.presentation['vol-bold'], {sepc, hyphen_to_dash(volume)});-- boldendendif is_set (issue) thenreturn vol .. substitute (cfg.messages['j-issue'], issue);endreturn vol;end--[[-------------------------< F O R M A T _ P A G E S _ S H E E T S >-----------------------------------------adds static text to one of |page(s)= or |sheet(s)= values and returns it with all of the others set to empty strings.The return order is:page, pages, sheet, sheetsSingular has priority over plural when both are provided.]]local function format_pages_sheets (page, pages, sheet, sheets, cite_class, origin, sepc, nopp, lower)if 'map' == cite_class then-- only cite map supports sheet(s) as in-source locatorsif is_set (sheet) thenif 'journal' == origin thenreturn '', '', wrap_msg ('j-sheet', sheet, lower), '';elsereturn '', '', wrap_msg ('sheet', {sepc, sheet}, lower), '';endelseif is_set (sheets) thenif 'journal' == origin thenreturn '', '', '', wrap_msg ('j-sheets', sheets, lower);elsereturn '', '', '', wrap_msg ('sheets', {sepc, sheets}, lower);endendendlocal is_journal = 'journal' == cite_class or (in_array (cite_class, {'citation', 'map', 'interview'}) and 'journal' == origin);if is_set (page) thenif is_journal thenreturn substitute (cfg.messages['j-page(s)'], page), '', '', '';elseif not nopp thenreturn substitute (cfg.messages['p-prefix'], {sepc, page}), '', '', '';elsereturn substitute (cfg.messages['nopp'], {sepc, page}), '', '', '';endelseif is_set(pages) thenif is_journal thenreturn substitute (cfg.messages['j-page(s)'], pages), '', '', '';elseif tonumber(pages) ~= nil and not nopp then-- if pages is only digits, assume a single page numberreturn '', substitute (cfg.messages['p-prefix'], {sepc, pages}), '', '';elseif not nopp thenreturn '', substitute (cfg.messages['pp-prefix'], {sepc, pages}), '', '';elsereturn '', substitute (cfg.messages['nopp'], {sepc, pages}), '', '';endendreturn '', '', '', '';-- return empty stringsend--[[--------------------------< I N S O U R C E _ L O C _ G E T >----------------------------------------------returns one of the in-source locators: page, pages, or at. If any of these are interwiki links to wikisource, returns the label portion of the interwikilink as plain textfor use in COinS.  This COinS thing is done because here we convert an interwiki link to and external link andadd an icon span around that; get_coins_pages() doesn't know about the span.  TODO: should it?  TODO: add support for sheet and sheets?; streamline;TODO: make it so that this function returns only one of the three as the single in-source (the return value assignedto a new name)?]]local function insource_loc_get (page, pages, at)local ws_url, ws_label, coins_pages, L;-- for wikisource interwikilinks; TODO: this corrupts page metadata (span remains in place after cleanup; fix there?)if is_set (page) thenif is_set (pages) or is_set(at) thenpages = '';-- unset the othersat = '';endextra_text_in_page_check (page);-- add this page to maint cat if |page= value begins with what looks like p. or pp.ws_url, ws_label, L = wikisource_url_make (page);-- make ws url from |page= interwiki link; link portion L becomes tool tip labelif ws_url thenpage = external_link (ws_url, ws_label .. '&nbsp;', 'ws link in page');-- space char after label to move icon away from in-source text; TODO: a better way to do this?page = substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, page});coins_pages = ws_label;endelseif is_set (pages) thenif is_set (at) thenat = '';-- unsetendextra_text_in_page_check (pages);-- add this page to maint cat if |pages= value begins with what looks like p. or pp.ws_url, ws_label, L = wikisource_url_make (pages);-- make ws url from |pages= interwiki link; link portion L becomes tool tip labelif ws_url thenpages = external_link (ws_url, ws_label .. '&nbsp;', 'ws link in pages');-- space char after label to move icon away from in-source text; TODO: a better way to do this?pages = substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, pages});coins_pages = ws_label;endelseif is_set (at) thenws_url, ws_label, L = wikisource_url_make (at);-- make ws url from |at= interwiki link; link portion L becomes tool tip labelif ws_url thenat = external_link (ws_url, ws_label .. '&nbsp;', 'ws link in at');-- space char after label to move icon away from in-source text; TODO: a better way to do this?at = substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, at});coins_pages = ws_label;endendreturn page, pages, at, coins_pages;end--[=[-------------------------< A R C H I V E _ U R L _ C H E C K >--------------------------------------------Check archive.org urls to make sure they at least look like they are pointing at valid archives and not to the save snapshot url or to calendar pages.  When the archive url is 'https://web.archive.org/save/' (or http://...)archive.org saves a snapshot of the target page in the url.  That is something that Wikipedia should not allowunwitting readers to do.When the archive.org url does not have a complete timestamp, archive.org chooses a snapshot according to its ownalgorithm or provides a calendar 'search' result.  [[WP:ELNO]] discourages links to search results.This function looks at the value assigned to |archive-url= and returns empty strings for |archive-url= and|archive-date= and an error message when:|archive-url= holds an archive.org save command url|archive-url= is an archive.org url that does not have a complete timestamp (YYYYMMDDhhmmss 14 digits) in thecorrect placeotherwise returns |archive-url= and |archive-date=There are two mostly compatible archive.org urls://web.archive.org/<timestamp>...-- the old form//web.archive.org/web/<timestamp>...-- the new formThe old form does not support or map to the new form when it contains a display flag.  There are four identified flags('id_', 'js_', 'cs_', 'im_') but since archive.org ignores others following the same form (two letters and an underscore)we don't check for these specific flags but we do check the form.This function supports a preview mode.  When the article is rendered in preview mode, this funct may return a modifiedarchive url:for save command errors, return undated wildcard (/*/)for timestamp errors when the timestamp has a wildcard, return the url unmodifiedfor timestamp errors when the timestamp does not have a wildcard, return with timestamp limited to six digits plus wildcard (/yyyymm*/)]=]local function archive_url_check (url, date)local err_msg = '';-- start with the error message emptylocal path, timestamp, flag;-- portions of the archive.or urlif (not url:match('//web%.archive%.org/')) and (not url:match('//liveweb%.archive%.org/')) then-- also deprecated liveweb Wayback machine urlreturn url, date;-- not an archive.org archive, return ArchiveURL and ArchiveDateendif url:match('//web%.archive%.org/save/') then-- if a save command url, we don't want to allow saving of the target page err_msg = cfg.err_msg_supl.save;url = url:gsub ('(//web%.archive%.org)/save/', '%1/*/', 1);-- for preview mode: modify ArchiveURLelseif url:match('//liveweb%.archive%.org/') thenerr_msg = cfg.err_msg_supl.liveweb;elsepath, timestamp, flag = url:match('//web%.archive%.org/([^%d]*)(%d+)([^/]*)/');-- split out some of the url parts for evaluationif not is_set(timestamp) or 14 ~= timestamp:len() then-- path and flag optional, must have 14-digit timestamp hereerr_msg = cfg.err_msg_supl.timestamp;if '*' ~= flag thenurl=url:gsub ('(//web%.archive%.org/[^%d]*%d?%d?%d?%d?%d?%d?)[^/]*', '%1*', 1)-- for preview, modify ts to be yearmo* max (0-6 digits plus splat)endelseif is_set(path) and 'web/' ~= path then-- older archive urls do not have the extra 'web/' path elementerr_msg = cfg.err_msg_supl.path;elseif is_set (flag) and not is_set (path) then-- flag not allowed with the old form url (without the 'web/' path element)err_msg = cfg.err_msg_supl.flag;elseif is_set (flag) and not flag:match ('%a%a_') then-- flag if present must be two alpha characters and underscore (requires 'web/' path element)err_msg = cfg.err_msg_supl.flag;elsereturn url, date;-- return ArchiveURL and ArchiveDateendend-- if here, something not right sotable.insert( z.message_tail, { set_error( 'archive_url', {err_msg}, true ) } );-- add error message andif is_set (Frame:preprocess('{{REVISIONID}}')) thenreturn '', '';-- return empty strings for ArchiveURL and ArchiveDateelsereturn url, date;-- preview mode so return ArchiveURL and ArchiveDateendend--[[--------------------------< P L A C E _ C H E C K >--------------------------------------------------------check |place=, |publication-place=, |location= to see if these params include digits.  This function added becausemany editors mis-use location to specify the in-source location (|page(s)= and |at= are supposed to do that)returns the original parameter value without modification; added maint cat when parameter value contains digits]]local function place_check (param_val)if not is_set (param_val) then-- parameter empty or omittedreturn param_val;-- return that empty stateendif mw.ustring.find (param_val, '%d') then-- not empty, are there digits in the parameter valueadd_maint_cat ('location');-- yep, add maint catendreturn param_val;-- and doneend--[[--------------------------< C I T A T I O N 0 >------------------------------------------------------------This is the main function doing the majority of the citation formatting.]]local function citation0( config, args)--[[ Load Input ParametersThe argument_wrapper facilitates the mapping of multiple aliases to single internal variable.]]local A = argument_wrapper( args );local i -- Pick out the relevant fields from the arguments.  Different citation templates-- define different field names for the same underlying things.local Mode = is_valid_parameter_value (A['Mode'], A:ORIGIN('Mode'), cfg.keywords_lists['mode'], '');local author_etal;local a= {};-- authors list from |lastn= / |firstn= pairs or |vauthors=local Authors;local NameListFormat = is_valid_parameter_value (A['NameListFormat'], A:ORIGIN('NameListFormat'), cfg.keywords_lists['name-list-format'], '');local Collaboration = A['Collaboration'];do-- to limit scope of selectedlocal selected = select_author_editor_source (A['Vauthors'], A['Authors'], args, 'AuthorList');if 1 == selected thena, author_etal = extract_names (args, 'AuthorList');-- fetch author list from |authorn= / |lastn= / |firstn=, |author-linkn=, and |author-maskn=elseif 2 == selected thenNameListFormat = 'vanc';-- override whatever |name-list-format= might bea, author_etal = parse_vauthors_veditors (args, args.vauthors, 'AuthorList');-- fetch author list from |vauthors=, |author-linkn=, and |author-maskn=elseif 3 == selected thenAuthors = A['Authors'];-- use content of |authors=if 'authors' == A:ORIGIN('Authors') then-- but add a maint cat if the parameter is |authors=add_maint_cat ('authors');-- because use of this parameter is discouraged; what to do about the aliases is a TODO:endendif is_set (Collaboration) thenauthor_etal = true;-- so that |display-authors=etal not requiredendendlocal Others = A['Others'];local editor_etal;local e= {};-- editors list from |editor-lastn= / |editor-firstn= pairs or |veditors=local Editors;do-- to limit scope of selectedlocal selected = select_author_editor_source (A['Veditors'], A['Editors'], args, 'EditorList');if 1 == selected thene, editor_etal = extract_names (args, 'EditorList');-- fetch editor list from |editorn= / |editor-lastn= / |editor-firstn=, |editor-linkn=, and |editor-maskn=elseif 2 == selected thenNameListFormat = 'vanc';-- override whatever |name-list-format= might bee, editor_etal = parse_vauthors_veditors (args, args.veditors, 'EditorList');-- fetch editor list from |veditors=, |editor-linkn=, and |editor-maskn=elseif 3 == selected thenEditors = A['Editors'];-- use content of |editors=add_maint_cat ('editors');-- but add a maint cat because use of this parameter is discouragedendendlocal translator_etal;local t = {};-- translators list from |translator-lastn= / translator-firstn= pairslocal Translators;-- assembled translators name listt = extract_names (args, 'TranslatorList');-- fetch translator list from |translatorn= / |translator-lastn=, -firstn=, -linkn=, -maskn=local interviewer_etal;local interviewers_list = {};local Interviewers;-- used laterinterviewers_list = extract_names (args, 'InterviewerList');-- process preferred interviewers parameterslocal contributor_etal;local c = {};-- contributors list from |contributor-lastn= / contributor-firstn= pairslocal Contributors;-- assembled contributors name listlocal Contribution = A['Contribution'];-- TODO: move to after chapter use if A:ORIGIN ('Chapter') ... to set Contribution; this to remove duplicate in aliases listif in_array(config.CitationClass, {"book","citation"}) and not is_set(A['Periodical']) then-- |contributor= and |contribution= only supported in book citesc = extract_names (args, 'ContributorList');-- fetch contributor list from |contributorn= / |contributor-lastn=, -firstn=, -linkn=, -maskn=if 0 < #c thenif not is_set (Contribution) then-- |contributor= requires |contribution=table.insert( z.message_tail, { set_error( 'contributor_missing_required_param', 'contribution')});-- add missing contribution error messagec = {};-- blank the contributors' table; it is used as a flag laterendif 0 == #a then-- |contributor= requires |author=table.insert( z.message_tail, { set_error( 'contributor_missing_required_param', 'author')});-- add missing author error messagec = {};-- blank the contributors' table; it is used as a flag laterendendelse-- if not a book citeif select_one (args, cfg.aliases['ContributorList-Last'], 'redundant_parameters', 1 ) then-- are there contributor name list parameters?table.insert( z.message_tail, { set_error( 'contributor_ignored')});-- add contributor ignored error messageendContribution = nil;-- unsetendif is_set (Others) thenif 0 == #a and 0 == #e then-- add maint cat when |others= has value and used without |author=, |editor=add_maint_cat ('others');endendlocal 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 ScriptTitle = A['ScriptTitle'];local BookTitle = A['BookTitle'];local Conference = A['Conference'];local TransTitle = A['TransTitle'];local TitleNote = A['TitleNote'];local TitleLink = A['TitleLink'];link_title_ok (TitleLink, A:ORIGIN ('TitleLink'), Title, 'title');-- check for wikimarkup in |title-link= or wikimarkup in |title= when |title-link= is setlocal Chapter = A['Chapter'];-- TODO: insert test, assignment, and then unset Chapter when |section= in cite map; test is at c. line 3220local ScriptChapter = A['ScriptChapter'];local ScriptChapterOrigin = A:ORIGIN ('ScriptChapter');local ChapterLink-- = A['ChapterLink'];-- deprecated as a parameter but still used internally by cite episodelocal TransChapter = A['TransChapter'];local TitleType = A['TitleType'];local Degree = A['Degree'];local Docket = A['Docket'];local ArchiveFormat = A['ArchiveFormat'];local ArchiveDate;local ArchiveURL;ArchiveURL, ArchiveDate = archive_url_check (A['ArchiveURL'], A['ArchiveDate'])local UrlStatus = is_valid_parameter_value (A['UrlStatus'], A:ORIGIN('UrlStatus'), cfg.keywords_lists['url-status'], '');local URL = A['URL']local URLorigin = A:ORIGIN('URL');-- get name of parameter that holds URLlocal ChapterURL = A['ChapterURL'];local ChapterURLorigin = A:ORIGIN('ChapterURL');-- get name of parameter that holds ChapterURLlocal ConferenceFormat = A['ConferenceFormat'];local ConferenceURL = A['ConferenceURL'];local ConferenceURLorigin = A:ORIGIN('ConferenceURL');-- get name of parameter that holds ConferenceURL-- TODO: mailinglist should be removed from Periodical alias list; Periodical should be assigned value from |mailinglist= here whlocal Periodical = A['Periodical'];-- cite mailinglist or citation and |mailinglist=; error check for duplicate work params (Periodical already set)local Periodical_origin = '';if is_set (Periodical) thenPeriodical_origin = A:ORIGIN('Periodical');-- get the name of the periodical parameterlocal i;Periodical, i = strip_apostrophe_markup (Periodical);-- strip appostrophe markup so that metadata isn't contaminated if i then-- non-zero when markup was stripped so emit an error messagetable.insert( z.message_tail, {set_error ('apostrophe_markup', {Periodical_origin}, true)});endend-- TODO: mailinglist assignment here? iff Periodical not set; err msg else; see TODO c. line 2607local ScriptPeriodical = A['ScriptPeriodical'];local ScriptPeriodical_origin = A:ORIGIN('ScriptPeriodical');-- web and news not tested for now because of -- Wikipedia:Administrators%27_noticeboard#Is_there_a_semi-automated_tool_that_could_fix_these_annoying_"Cite_Web"_errors?if not (is_set (Periodical) or is_set (ScriptPeriodical)) then-- 'periodical' templates require periodical parameter--local p = {['journal'] = 'journal', ['magazine'] = 'magazine', ['news'] = 'newspaper', ['web'] = 'website'};-- for error messagelocal p = {['journal'] = 'journal', ['magazine'] = 'magazine'};-- for error messageif p[config.CitationClass]  thentable.insert( z.message_tail, {set_error ('missing_periodical', {config.CitationClass, p[config.CitationClass]}, true)});endendlocal TransPeriodical =  A['TransPeriodical'];local Series = A['Series'];local Volume;local Issue;local Page;local Pages;local At;if 'citation' == config.CitationClass thenif is_set (Periodical) thenif not in_array (Periodical_origin, {'website', 'mailinglist'}) then-- {{citation}} does not render volume for these 'periodicals'Volume = A['Volume'];-- but does for all other 'periodicals'endelseif is_set (ScriptPeriodical) thenif 'script-website' ~= ScriptPeriodical_origin then-- {{citation}} does not render volume for |script-website=Volume = A['Volume'];-- but does for all other 'periodicals'endelseVolume = A['Volume'];-- and does for non-'periodical' citesendelseif in_array (config.CitationClass, cfg.templates_using_volume) then-- render |volume= for cs1 according to the configuration settingsVolume = A['Volume'];endif 'citation' == config.CitationClass thenif is_set (Periodical) and in_array (Periodical_origin, {'journal', 'magazine', 'newspaper', 'periodical', 'work'}) or-- {{citation}} renders issue for these 'periodicals'is_set (ScriptPeriodical) and in_array (ScriptPeriodical_origin, {'script-journal', 'script-magazine', 'script-newspaper', 'script-periodical', 'script-work'}) then -- and these 'script-periodicals'Issue = hyphen_to_dash (A['Issue']);endelseif in_array (config.CitationClass, cfg.templates_using_issue) then-- conference & map books do not support issue; {{citation}} listed here because included in settings tableif not (in_array (config.CitationClass, {'conference', 'map', 'citation'}) and not (is_set (Periodical) or is_set (ScriptPeriodical))) thenIssue = hyphen_to_dash (A['Issue']);endendlocal Position = '';if not in_array (config.CitationClass, cfg.templates_not_using_page) thenPage = A['Page'];Pages = hyphen_to_dash (A['Pages']);At = A['At'];endlocal Edition = A['Edition'];local PublicationPlace = place_check (A['PublicationPlace'], A:ORIGIN('PublicationPlace'));local Place = place_check (A['Place'], A:ORIGIN('Place'));local PublisherName = A['PublisherName'];local PublisherName_origin = A:ORIGIN('PublisherName');if is_set (PublisherName) thenlocal i=0;PublisherName, i = strip_apostrophe_markup (PublisherName);-- strip appostrophe markup so that metadata isn't contaminated; publisher is never italicizedif i then-- non-zero when markup was stripped so emit an error messagetable.insert( z.message_tail, {set_error ('apostrophe_markup', {PublisherName_origin}, true)});endendlocal Newsgroup = A['Newsgroup'];-- TODO: strip apostrophe markup?local Newsgroup_origin = A:ORIGIN('Newsgroup');if 'newsgroup' == config.CitationClass thenif is_set (PublisherName) then-- general use parmeter |publisher= not allowed in cite newsgrouplocal error_text = set_error ('parameter_ignored', {PublisherName_origin}, true);if is_set (error_text) thentable.insert( z.message_tail, {error_text, error_state} );endendPublisherName = nil;-- ensure that this parameter is unset for the time being; will be used again after COinSendlocal UrlAccess = is_valid_parameter_value (A['UrlAccess'], A:ORIGIN('UrlAccess'), cfg.keywords_lists['url-access'], nil);if not is_set(URL) and is_set(UrlAccess) thenUrlAccess = nil;table.insert( z.message_tail, { set_error( 'param_access_requires_param', {'url'}, true ) } );endlocal ChapterUrlAccess = is_valid_parameter_value (A['ChapterUrlAccess'], A:ORIGIN('ChapterUrlAccess'), cfg.keywords_lists['url-access'], nil);if not is_set(ChapterURL) and is_set(ChapterUrlAccess) thenChapterUrlAccess = nil;table.insert( z.message_tail, { set_error( 'param_access_requires_param', {A:ORIGIN('ChapterUrlAccess'):gsub ('%-access', '')}, true ) } );endlocal MapUrlAccess = is_valid_parameter_value (A['MapUrlAccess'], A:ORIGIN('MapUrlAccess'), cfg.keywords_lists['url-access'], nil);if not is_set(A['MapURL']) and is_set(MapUrlAccess) thenMapUrlAccess = nil;table.insert( z.message_tail, { set_error( 'param_access_requires_param', {'map-url'}, true ) } );endlocal Via = A['Via'];local AccessDate = A['AccessDate'];local Agency = A['Agency'];local Language = A['Language'];local Format = A['Format'];local ChapterFormat = A['ChapterFormat'];local DoiBroken = A['DoiBroken'];local ID = A['ID'];local ASINTLD = A['ASINTLD'];local IgnoreISBN = is_valid_parameter_value (A['IgnoreISBN'], A:ORIGIN('IgnoreISBN'), cfg.keywords_lists['yes_true_y'], nil);local Embargo = A['Embargo'];local Class = A['Class'];-- arxiv class identifierlocal ID_list = extract_ids( args );if is_set (DoiBroken) and not ID_list['DOI'] thentable.insert( z.message_tail, { set_error( 'doibroken_missing_doi', A:ORIGIN('DoiBroken'))});endlocal ID_access_levels = extract_id_access_levels( args, ID_list );local Quote = A['Quote'];local LayFormat = A['LayFormat'];local LayURL = A['LayURL'];local LaySource = A['LaySource'];local Transcript = A['Transcript'];local TranscriptFormat = A['TranscriptFormat'];local TranscriptURL = A['TranscriptURL'] local TranscriptURLorigin = A:ORIGIN('TranscriptURL');-- get name of parameter that holds TranscriptURLlocal LastAuthorAmp = is_valid_parameter_value (A['LastAuthorAmp'], A:ORIGIN('LastAuthorAmp'), cfg.keywords_lists['yes_true_y'], nil);local no_tracking_cats = is_valid_parameter_value (A['NoTracking'], A:ORIGIN('NoTracking'), cfg.keywords_lists['yes_true_y'], nil);--local variables that are not cs1 parameterslocal use_lowercase;-- controls capitalization of certain static textlocal this_page = mw.title.getCurrentTitle();-- also used for COinS and for languagelocal anchor_year;-- used in the CITEREF identifierlocal COinS_date = {};-- holds date info extracted from |date= for the COinS metadata by Module:Date verificationlocal DF = is_valid_parameter_value (A['DF'], A:ORIGIN('DF'), cfg.keywords_lists['df'], '');if not is_set (DF) thenDF = cfg.global_df;-- local df if present overrides global df set by {{use xxx date}} templateendlocal sepc;-- separator between citation elements for CS1 a period, for CS2, a commalocal PostScript;local Ref = A['Ref'];if 'harv' == Ref thenadd_maint_cat ('ref_harv');-- add maint cat to identify templates that have this now-extraneous param valueelseif not is_set (Ref) thenRef = 'harv';-- set as default when not set externallyendsepc, PostScript, Ref = set_style (Mode:lower(), A['PostScript'], Ref, config.CitationClass);use_lowercase = ( sepc == ',' );-- used to control capitalization for certain static text--check this page to see if it is in one of the namespaces that cs1 is not supposed to add to the error categoriesif not is_set (no_tracking_cats) then-- ignore if we are already not going to categorize this pageif in_array (this_page.nsText, cfg.uncategorized_namespaces) thenno_tracking_cats = "true";-- set no_tracking_catsendfor _,v in ipairs (cfg.uncategorized_subpages) do-- cycle through page name patternsif this_page.text:match (v) then-- test page name against each patternno_tracking_cats = "true";-- set no_tracking_catsbreak;-- bail out if one is foundendendend-- check for extra |page=, |pages= or |at= parameters. (also sheet and sheets while we're at it)select_one (args, {'page', 'p', 'pp', 'pages', 'at', 'sheet', 'sheets'}, 'redundant_parameters');-- this is a dummy call simply to get the error message and categorylocal coins_pages;Page, Pages, At, coins_pages = insource_loc_get (Page, Pages, At);local NoPP = is_valid_parameter_value (A['NoPP'], A:ORIGIN('NoPP'), cfg.keywords_lists['yes_true_y'], nil);if is_set (PublicationPlace) and is_set (Place) then-- both |publication-place= and |place= (|location=) allowed if differentadd_prop_cat ('location test');-- add property cat to evaluate how often PublicationPlace and Place are used togetherif PublicationPlace == Place thenPlace = '';-- unset; don't need both if they are the sameendelseif not is_set (PublicationPlace) and is_set (Place) then-- when only |place= (|location=) is set ...PublicationPlace = 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|trans-title maps to |trans-chapter when |title is re-mapped|url maps to |chapterurl when |title is remappedAll other combinations of |encyclopedia, |title, and |article are not modified]]local Encyclopedia = A['Encyclopedia'];if ( config.CitationClass == "encyclopaedia" ) or ( config.CitationClass == "citation" and is_set (Encyclopedia)) then-- test code for citationif is_set (Periodical) then-- Periodical is set when |encyclopedia is setif is_set(Title) or is_set (ScriptTitle) thenif not is_set(Chapter) thenChapter = Title;-- |encyclopedia and |title are set so map |title to |article and |encyclopedia to |titleScriptChapter = ScriptTitle;ScriptChapterOrigin = A:ORIGIN('ScriptTitle')TransChapter = TransTitle;ChapterURL = URL;ChapterURLorigin = A:ORIGIN('URL')ChapterUrlAccess = UrlAccess;if not is_set (ChapterURL) and is_set (TitleLink) thenChapter = make_wikilink (TitleLink, Chapter);endTitle = Periodical;ChapterFormat = Format;Periodical = '';-- redundant so unsetTransTitle = '';URL = '';Format = '';TitleLink = '';ScriptTitle = '';endelseif is_set (Chapter) then-- |title not setTitle = Periodical;-- |encyclopedia set and |article set so map |encyclopedia to |titlePeriodical = '';-- redundant so unsetendendend-- Special case for cite techreport.if (config.CitationClass == "techreport") then-- special case for cite techreportif is_set(A['Number']) then-- cite techreport uses 'number', which other citations alias to 'issue'if not is_set(ID) then-- can we use ID for the "number"?ID = A['Number'];-- yes, use itelse-- ID has a value so emit error messagetable.insert( z.message_tail, { set_error('redundant_parameters', {wrap_style ('parameter', 'id') .. ' and ' .. wrap_style ('parameter', 'number')}, true )});endendend-- special case for cite mailing listif (config.CitationClass == "mailinglist") then-- TODO: move this to Periodical assignment; see TODOs at c. line 2360Periodical = A ['MailingList'];elseif 'mailinglist' == Periodical_origin thenPeriodical = '';-- unset because mailing list is only used for cite mailing listend-- Account for the oddity that is {{cite conference}}, before generation of COinS data.if 'conference' == config.CitationClass thenif is_set(BookTitle) thenChapter = Title;--ChapterLink = TitleLink;-- |chapterlink= is deprecatedChapterURL = URL;ChapterUrlAccess = UrlAccess;ChapterURLorigin = URLorigin;URLorigin = '';ChapterFormat = Format;TransChapter = TransTitle;Title = BookTitle;Format = '';--TitleLink = '';TransTitle = '';URL = '';endelseif 'speech' ~= config.CitationClass thenConference = '';-- not cite conference or cite speech so make sure this is empty stringend-- cite map odditieslocal Cartography = "";local Scale = "";local Sheet = A['Sheet'] or '';local Sheets = A['Sheets'] or '';if config.CitationClass == "map" thenChapter = A['Map'];ChapterURL = A['MapURL'];ChapterURLorigin = A:ORIGIN('MapURL');TransChapter = A['TransMap'];ScriptChapter = A['ScriptMap']ScriptChapterOrigin = A:ORIGIN('ScriptMap')ChapterUrlAccess = MapUrlAccess;ChapterFormat = A['MapFormat'];Cartography = A['Cartography'];if is_set( Cartography ) thenCartography = sepc .. " " .. wrap_msg ('cartography', Cartography, use_lowercase);endScale = A['Scale'];if is_set( Scale ) thenScale = sepc .. " " .. Scale;endend-- Account for the oddities that are {{cite episode}} and {{cite serial}}, before generation of COinS data.if 'episode' == config.CitationClass or 'serial' == config.CitationClass thenlocal SeriesLink = A['SeriesLink'];link_title_ok (SeriesLink, A:ORIGIN ('SeriesLink'), Series, 'series');-- check for wikimarkup in |series-link= or wikimarkup in |series= when |series-link= is setlocal Network = A['Network'];local Station = A['Station'];local s, n = {}, {};-- do common parameters firstif is_set(Network) then table.insert(n, Network); endif is_set(Station) then table.insert(n, Station); endID = table.concat(n, sepc .. ' ');if 'episode' == config.CitationClass then-- handle the oddities that are strictly {{cite episode}}local Season = A['Season'];local SeriesNumber = A['SeriesNumber'];if is_set (Season) and is_set (SeriesNumber) then-- these are mutually exclusive so if both are settable.insert( z.message_tail, { set_error( 'redundant_parameters', {wrap_style ('parameter', 'season') .. ' and ' .. wrap_style ('parameter', 'seriesno')}, true ) } );-- add error messageSeriesNumber = '';-- unset; prefer |season= over |seriesno=end-- assemble a table of parts concatenated later into Seriesif is_set(Season) then table.insert(s, wrap_msg ('season', Season, use_lowercase)); endif is_set(SeriesNumber) then table.insert(s, wrap_msg ('seriesnum', SeriesNumber, use_lowercase)); endif is_set(Issue) then table.insert(s, wrap_msg ('episode', Issue, use_lowercase)); endIssue = '';-- unset because this is not a unique parameterChapter = Title;-- promote title parameters to chapterScriptChapter = ScriptTitle;ScriptChapterOrigin = A:ORIGIN('ScriptTitle');ChapterLink = TitleLink;-- alias episodelinkTransChapter = TransTitle;ChapterURL = URL;ChapterUrlAccess = UrlAccess;ChapterURLorigin = A:ORIGIN('URL');Title = Series;-- promote series to titleTitleLink = SeriesLink;Series = table.concat(s, sepc .. ' ');-- this is concatenation of season, seriesno, episode numberif is_set (ChapterLink) and not is_set (ChapterURL) then-- link but not URLChapter = make_wikilink (ChapterLink, Chapter);elseif is_set (ChapterLink) and is_set (ChapterURL) then-- if both are set, URL links episode;Series = make_wikilink (ChapterLink, Series);endURL = '';-- unsetTransTitle = '';ScriptTitle = '';else-- now oddities that are cite serialIssue = '';-- unset because this parameter no longer supported by the citation/core version of cite serialChapter = A['Episode'];-- TODO: make |episode= available to cite episode someday?if is_set (Series) and is_set (SeriesLink) thenSeries = make_wikilink (SeriesLink, Series);endSeries = wrap_style ('italic-title', Series);-- series is italicizedendend-- end of {{cite episode}} stuff-- Account for the oddities that are {{cite arxiv}}, {{cite biorxiv}}, {{cite citeseerx}}, {{cite ssrn}}, before generation of COinS data.doif in_array (config.CitationClass, whitelist.preprint_template_list) thenif not is_set (ID_list[config.CitationClass:upper()]) then-- |arxiv= or |eprint= required for cite arxiv; |biorxiv= & |citeseerx= required for their templatestable.insert( z.message_tail, { set_error( config.CitationClass .. '_missing', {}, true ) } );-- add error messageendPeriodical = ({['arxiv'] = 'arXiv', ['biorxiv'] = 'bioRxiv', ['citeseerx'] = 'CiteSeerX', ['ssrn'] = 'Social Science Research Network'})[config.CitationClass];endend-- handle type parameter for those CS1 citations that have default valuesif in_array(config.CitationClass, {"AV-media-notes", "interview", "mailinglist", "map", "podcast", "pressrelease", "report", "techreport", "thesis"}) thenTitleType = set_titletype (config.CitationClass, TitleType);if is_set(Degree) and "Thesis" == TitleType then-- special case for cite thesisTitleType = Degree .. ' ' .. cfg.title_types ['thesis']:lower();endendif is_set(TitleType) then-- if type parameter is specifiedTitleType = substitute( cfg.messages['type'], TitleType);-- display it in parentheses-- TODO: Hack on TitleType to fix bunched parentheses problemend-- legacy: promote PublicationDate to Date if neither Date nor Year are set. local Date_origin;-- to hold the name of parameter promoted to Date; required for date error messagingif not is_set (Date) thenDate = Year;-- promote Year to DateYear = nil;-- make nil so Year as empty string isn't used for CITEREFif not is_set (Date) and is_set(PublicationDate) then-- use PublicationDate when |date= and |year= are not setDate = PublicationDate;-- promote PublicationDate to DatePublicationDate = '';-- unset, no longer neededDate_origin = A:ORIGIN('PublicationDate');-- save the name of the promoted parameterelseDate_origin = A:ORIGIN('Year');-- save the name of the promoted parameterendelseDate_origin = A:ORIGIN('Date');-- not a promotion; name required for error messagingendif 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]]do-- create defined block to contain local variables error_message, date_parameters_list, mismatchlocal error_message = '';-- AirDate has been promoted to Date so not necessary to check itlocal date_parameters_list = {['access-date'] = {val=AccessDate, name=A:ORIGIN ('AccessDate')},['archive-date'] = {val=ArchiveDate, name=A:ORIGIN ('ArchiveDate')},['date'] = {val=Date, name=Date_origin},['doi-broken-date'] = {val=DoiBroken, name=A:ORIGIN ('DoiBroken')},['embargo'] = {val=Embargo, name=A:ORIGIN ('Embargo')},['lay-date'] = {val=LayDate, name=A:ORIGIN ('LayDate')},['publication-date'] ={val=PublicationDate, name=A:ORIGIN ('PublicationDate')},['year'] = {val=Year, name=A:ORIGIN ('Year')},};anchor_year, Embargo, error_message = dates(date_parameters_list, COinS_date);-- start temporary Julian / Gregorian calendar uncertainty categorizationif COinS_date.inter_cal_cat thenadd_prop_cat ('jul_greg_uncertainty');end-- end temporary Julian / Gregorian calendar uncertainty categorizationif is_set (Year) and is_set (Date) then-- both |date= and |year= not normally needed; local mismatch = year_date_check (Year, Date)if 0 == mismatch then-- |year= does not match a year-value in |date=if is_set (error_message) then-- if there is already an error messageerror_message = error_message .. ', ';-- tack on this additional messageenderror_message = error_message .. '&#124;year= / &#124;date= mismatch';elseif 1 == mismatch then-- |year= matches year-value in |date=add_maint_cat ('date_year');endendif not is_set(error_message) then-- error free dates onlylocal modified = false;-- flagif is_set (DF) then-- if we need to reformat datesmodified = reformat_dates (date_parameters_list, DF, false);-- reformat to DF format, use long month names if appropriateendif true == date_hyphen_to_dash (date_parameters_list) then-- convert hyphens to dashes where appropriatemodified = true;add_maint_cat ('date_format');-- hyphens were converted so add maint categoryend-- for those wikis that can and want to have English date names translated to the local language,-- uncomment these three lines.  Not supported by en.wiki (for obvious reasons)-- set date_name_xlate() second argument to true to translate English digits to local digits (will translate ymd dates)--if date_name_xlate (date_parameters_list, false) then--modified = true;--endif modified then-- if the date_parameters_list values were modifiedAccessDate = date_parameters_list['access-date'].val;-- overwrite date holding parameters with modified valuesArchiveDate = date_parameters_list['archive-date'].val;Date = date_parameters_list['date'].val;DoiBroken = date_parameters_list['doi-broken-date'].val;LayDate = date_parameters_list['lay-date'].val;PublicationDate = date_parameters_list['publication-date'].val;endelsetable.insert( z.message_tail, { set_error( 'bad_date', {error_message}, true ) } );-- add this error messageendend-- end of do-- Account for the oddity that is {{cite journal}} with |pmc= set and |url= not set.  Do this after date check but before COInS.-- Here we unset Embargo if PMC not embargoed (|embargo= not set in the citation) or if the embargo time has expired. Otherwise, holds embargo dateEmbargo = is_embargoed (Embargo);if config.CitationClass == "journal" and not is_set(URL) and is_set(ID_list['PMC']) thenif not is_set (Embargo) then-- if not embargoed or embargo has expiredURL=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=if is_set(AccessDate) then-- access date requires |url=; pmc created url is not |url=table.insert( z.message_tail, { set_error( 'accessdate_missing_url', {}, true ) } );AccessDate = '';-- unsetendendend-- At this point fields may be nil if they weren't specified in the template use.  We can use that fact.-- Test if citation has no titleifnot is_set(Title) andnot is_set(TransTitle) andnot is_set(ScriptTitle) thenif 'episode' == config.CitationClass then-- special case for cite episode; TODO: is there a better way to do this?table.insert( z.message_tail, { set_error( 'citation_missing_title', {'series'}, true ) } );elsetable.insert( z.message_tail, { set_error( 'citation_missing_title', {'title'}, true ) } );endendif cfg.keywords_xlate[Title] == 'none' andin_array (config.CitationClass, {'journal', 'citation'}) and(is_set (Periodical) or is_set (ScriptPeriodical)) and('journal' == Periodical_origin or 'script-journal' == ScriptPeriodical_origin) then-- special case for journal citesTitle = '';-- set title to empty stringadd_maint_cat ('untitled');endcheck_for_url ({-- add error message when any of these parameters hold a URL['title']=Title,[A:ORIGIN('Chapter')]=Chapter,[Periodical_origin] = Periodical,[PublisherName_origin] = PublisherName});-- COinS metadata (see <http://ocoins.info/>) for automated parsing of citation information.-- handle the oddity that is cite encyclopedia and {{citation |encyclopedia=something}}. Here we presume that-- when Periodical, Title, and Chapter are all set, then Periodical is the book (encyclopedia) title, Title-- is the article title, and Chapter is a section within the article.  So, we remap local coins_chapter = Chapter;-- default assuming that remapping not requiredlocal coins_title = Title;-- et tuif 'encyclopaedia' == config.CitationClass or ('citation' == config.CitationClass and is_set (Encyclopedia)) thenif is_set (Chapter) and is_set (Title) and is_set (Periodical) then-- if all are used thencoins_chapter = Title;-- remapcoins_title = Periodical;endendlocal coins_author = a;-- default for coins rft.au if 0 < #c then-- but if contributor listcoins_author = c;-- use that insteadend-- this is the function call to COinS()local OCinSoutput = COinS({['Periodical'] = strip_apostrophe_markup (Periodical),-- no markup in the metadata['Encyclopedia'] = strip_apostrophe_markup (Encyclopedia),['Chapter'] = make_coins_title (coins_chapter, ScriptChapter),-- Chapter and ScriptChapter stripped of bold / italic wikimarkup['Degree'] = Degree;-- cite thesis only['Title'] = make_coins_title (coins_title, ScriptTitle),-- Title and ScriptTitle stripped of bold / italic wikimarkup['PublicationPlace'] = PublicationPlace,['Date'] = COinS_date.rftdate,-- COinS_date has correctly formatted date if Date is valid;['Season'] = COinS_date.rftssn,['Chron'] =  COinS_date.rftchron or (not COinS_date.rftdate and Date) or '',-- chron but if not set and invalid date format use Date; keep this last bit?['Series'] = Series,['Volume'] = Volume,['Issue'] = Issue,['Pages'] = coins_pages or get_coins_pages (first_set ({Sheet, Sheets, Page, Pages, At}, 5)),-- pages stripped of external links['Edition'] = Edition,['PublisherName'] = PublisherName or Newsgroup,-- any apostrophe markup already removed from PublisherName['URL'] = first_set ({ChapterURL, URL}, 2),['Authors'] = coins_author,['ID_list'] = ID_list,['RawPage'] = this_page.prefixedText,}, config.CitationClass);-- Account for the oddities that are {{cite arxiv}}, {{cite biorxiv}}, {{cite citeseerx}}, and {{cite ssrn}} AFTER generation of COinS data.if in_array (config.CitationClass, whitelist.preprint_template_list) then-- we have set rft.jtitle in COinS to arXiv, bioRxiv, CiteSeerX, or ssrn now unset so it isn't displayedPeriodical = '';-- periodical not allowed in these templates; if article has been published, use cite journalend-- special case for cite newsgroup.  Do this after COinS because we are modifying Publishername to include some static textif 'newsgroup' == config.CitationClass and is_set (Newsgroup) thenPublisherName = substitute (cfg.messages['newsgroup'], external_link( 'news:' .. Newsgroup, Newsgroup, Newsgroup_origin, nil ));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.local EditorCount;-- used only for choosing {ed.) or (eds.) annotation at end of editor name-listdolocal last_first_list;local control = { format = NameListFormat,-- empty string or 'vanc'maximum = nil,-- as if display-authors or display-editors not setlastauthoramp = LastAuthorAmp,mode = Mode};do-- do editor name list first because the now unsupported coauthors used to modify control tablecontrol.maximum , editor_etal = get_display_names (A['DisplayEditors'], #e, 'editors', editor_etal);last_first_list, EditorCount = list_people(control, e, editor_etal);if is_set (Editors) thenEditors, editor_etal = name_has_etal (Editors, editor_etal, false, 'editors');-- find and remove variations on et al.if editor_etal thenEditors = Editors .. ' ' .. cfg.messages['et al'];-- add et al. to editors parameter beause |display-editors=etalendEditorCount = 2;-- we don't know but assume |editors= is multiple names; spoof to display (eds.) annotationelseEditors = last_first_list;-- either an author name list or an empty stringendif 1 == EditorCount and (true == editor_etal or 1 < #e) then-- only one editor displayed but includes etal then EditorCount = 2;-- spoof to display (eds.) annotationendenddo-- now do interviewerscontrol.maximum , interviewer_etal = get_display_names (A['DisplayInterviewers'], #interviewers_list, 'interviewers', interviewer_etal);Interviewers = list_people (control, interviewers_list, interviewer_etal);enddo-- now do translatorscontrol.maximum , translator_etal = get_display_names (A['DisplayTranslators'], #t, 'translators', translator_etal);Translators = list_people (control, t, translator_etal);enddo-- now do contributorscontrol.maximum , contributor_etal = get_display_names (A['DisplayContributors'], #c, 'contributors', contributor_etal);Contributors = list_people (control, c, contributor_etal);enddo-- now do authorscontrol.maximum , author_etal = get_display_names (A['DisplayAuthors'], #a, 'authors', author_etal);last_first_list = list_people(control, a, author_etal);if is_set (Authors) thenAuthors, author_etal = name_has_etal (Authors, author_etal, false, 'authors');-- find and remove variations on et al.if author_etal thenAuthors = Authors .. ' ' .. cfg.messages['et al'];-- add et al. to authors parameterendelseAuthors = last_first_list;-- either an author name list or an empty stringendend-- end of doif is_set (Authors) and is_set (Collaboration) thenAuthors = Authors .. ' (' .. Collaboration .. ')';-- add collaboration after et al.endend-- apply |[xx-]format= styling; at the end, these parameters hold correctly styled format annotation,-- an error message if the associated url is not set, or an empty string for concatenationArchiveFormat = style_format (ArchiveFormat, ArchiveURL, 'archive-format', 'archive-url');ConferenceFormat = style_format (ConferenceFormat, ConferenceURL, 'conference-format', 'conference-url');Format = style_format (Format, URL, 'format', 'url');LayFormat = style_format (LayFormat, LayURL, 'lay-format', 'lay-url');TranscriptFormat = style_format (TranscriptFormat, TranscriptURL, 'transcript-format', 'transcripturl');-- special case for chapter format so no error message or cat when chapter not supportedif not (in_array(config.CitationClass, {'web', 'news', 'journal', 'magazine', 'pressrelease', 'podcast', 'newsgroup', 'arxiv', 'biorxiv', 'citeseerx', 'ssrn'}) or('citation' == config.CitationClass and (is_set (Periodical) or is_set (ScriptPeriodical)) and not is_set (Encyclopedia))) thenChapterFormat = style_format (ChapterFormat, ChapterURL, 'chapter-format', 'chapter-url');endif not is_set(URL) thenif in_array(config.CitationClass, {"web","podcast", "mailinglist"}) or-- |url= required for cite web, cite podcast, and cite mailinglist('citation' == config.CitationClass and ('website' == Periodical_origin or 'script-website' == ScriptPeriodical_origin)) then-- and required for {{citation}} with |website= or |script-website=table.insert( z.message_tail, { set_error( 'cite_web_url', {}, true ) } );end-- do we have |accessdate= without either |url= or |chapter-url=?if is_set(AccessDate) and not is_set(ChapterURL)then-- ChapterURL may be set when URL is not set;table.insert( z.message_tail, { set_error( 'accessdate_missing_url', {}, true ) } );AccessDate = '';endendlocal OriginalURL, OriginalURLorigin, OriginalFormat, OriginalAccess;UrlStatus = UrlStatus:lower();-- used later when assembling archived textif is_set( ArchiveURL ) thenif is_set (ChapterURL) then -- if chapter-url is set apply archive url to itOriginalURL = ChapterURL;-- save copy of source chapter's url for archive textOriginalURLorigin = ChapterURLorigin;-- name of chapter-url parameter for error messagesOriginalFormat = ChapterFormat;-- and original |chapter-format=if 'live' ~= UrlStatus thenChapterURL = ArchiveURL-- swap-in the archive's urlChapterURLorigin = A:ORIGIN('ArchiveURL')-- name of archive-url parameter for error messagesChapterFormat = ArchiveFormat or '';-- swap in archive's formatChapterUrlAccess = nil;-- restricted access levels do not make sense for archived urlsendelseif is_set (URL) thenOriginalURL = URL;-- save copy of original source URLOriginalURLorigin = URLorigin;-- name of url parameter for error messagesOriginalFormat = Format; -- and original |format=OriginalAccess = UrlAccess;if 'live' ~= UrlStatus then-- if URL set then archive-url applies to itURL = ArchiveURL-- swap-in the archive's urlURLorigin = A:ORIGIN('ArchiveURL')-- name of archive url parameter for error messagesFormat = ArchiveFormat or '';-- swap in archive's formatUrlAccess = nil;-- restricted access levels do not make sense for archived urlsend endendif in_array(config.CitationClass, {'web','news','journal', 'magazine', 'pressrelease', 'podcast', 'newsgroup', 'arxiv', 'biorxiv', 'citeseerx', 'ssrn'}) or-- if any of the 'periodical' cites except encyclopedia('citation' == config.CitationClass and (is_set (Periodical) or is_set (ScriptPeriodical)) and not is_set (Encyclopedia)) thenlocal chap_param;if is_set (Chapter) then-- get a parameter name from one of these chapter related meta-parameterschap_param = A:ORIGIN ('Chapter')elseif is_set (TransChapter) thenchap_param = A:ORIGIN ('TransChapter')elseif is_set (ChapterURL) thenchap_param = A:ORIGIN ('ChapterURL')elseif is_set (ScriptChapter) thenchap_param = ScriptChapterOrigin;else is_set (ChapterFormat)chap_param = A:ORIGIN ('ChapterFormat')endif is_set (chap_param) then-- if we found onetable.insert( z.message_tail, { set_error( 'chapter_ignored', {chap_param}, true ) } );-- add error messageChapter = '';-- and set them to empty string to be safe with concatenationTransChapter = '';ChapterURL = '';ScriptChapter = '';ChapterFormat = '';endelse-- otherwise, format chapter / article titlelocal no_quotes = false;-- default assume that we will be quoting the chapter parameter valueif is_set (Contribution) and 0 < #c then-- if this is a contribution with contributor(s)if in_array (Contribution:lower(), cfg.keywords_lists.contribution) then-- and a generic contribution titleno_quotes = true;-- then render it unquotedendendChapter = format_chapter_title (ScriptChapter, ScriptChapterOrigin, Chapter, TransChapter, ChapterURL, ChapterURLorigin, no_quotes, ChapterUrlAccess);-- Contribution is also in Chapterif is_set (Chapter) thenChapter = Chapter .. ChapterFormat ;if 'map' == config.CitationClass and is_set (TitleType) thenChapter = Chapter .. ' ' .. TitleType;-- map annotation here; not after titleendChapter = Chapter.. sepc .. ' ';elseif is_set (ChapterFormat) then-- |chapter= not set but |chapter-format= is so ...Chapter = ChapterFormat .. sepc .. ' ';-- ... ChapterFormat has error message, we want to see itendend-- Format main title.TODO: add support for non-English versions of 'Archived copy' when used on other-language wikis if is_set (ArchiveURL) and (mw.ustring.match (mw.ustring.lower(Title), cfg.special_case_translation.archived_copy.en) or-- if title is 'Archived copy' (place holder added by bots that can't find proper title)mw.ustring.match (mw.ustring.lower(Title), cfg.special_case_translation.archived_copy['local'])) then-- local-wiki's formadd_maint_cat ('archived_copy');-- add maintenance category before we modify the content of Titleendif Title:match ('^%(%(.*%)%)$') then-- if keep as written markup:Title= Title:gsub ('^%(%((.*)%)%)$', '%1')-- remove the markupelseif '...' == Title:sub (-3) then-- if elipsis is the last three characters of |title=Title = Title:gsub ('(%.%.%.)%.+$', '%1');-- limit the number of dots to threeelseif not mw.ustring.find (Title, '%.%s*%a%.$') and-- end of title is not a 'dot-(optional space-)letter-dot' initialism ...not mw.ustring.find (Title, '%s+%a%.$') then-- ...and not a 'space-letter-dot' initial (''Allium canadense'' L.)Title = mw.ustring.gsub(Title, '%'..sepc..'$', '');-- remove any trailing separator character; sepc and ms.ustring() here for languages that use multibyte separator charactersendendif in_array(config.CitationClass, {'web', 'news', 'journal', 'magazine', 'pressrelease', 'podcast', 'newsgroup', 'mailinglist', 'interview', 'arxiv', 'biorxiv', 'citeseerx', 'ssrn'}) or('citation' == config.CitationClass and (is_set (Periodical) or is_set (ScriptPeriodical)) and not is_set (Encyclopedia)) or('map' == config.CitationClass and (is_set (Periodical) or is_set (ScriptPeriodical))) then-- special case for cite map when the map is in a periodical treat as an articleTitle = kern_quotes (Title);-- if necessary, separate title's leading and trailing quote marks from Module provided quote marksTitle = wrap_style ('quoted-title', Title);Title = script_concatenate (Title, ScriptTitle, 'script-title');-- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrappedTransTitle= wrap_style ('trans-quoted-title', TransTitle );elseif 'report' == config.CitationClass then-- no styling for cite reportTitle = script_concatenate (Title, ScriptTitle, 'script-title');-- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrappedTransTitle= wrap_style ('trans-quoted-title', TransTitle );-- for cite report, use this form for trans-titleelseTitle = wrap_style ('italic-title', Title);Title = script_concatenate (Title, ScriptTitle, 'script-title');-- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrappedTransTitle = wrap_style ('trans-italic-title', TransTitle);endlocal TransError = "";if is_set(TransTitle) thenif is_set(Title) thenTransTitle = " " .. TransTitle;elseTransError = " " .. set_error( 'trans_missing_title', {'title'} );endendif is_set (Title) then-- TODO: is this the right place to be making wikisource urls?if not is_set (TitleLink) and is_set (URL) thenTitle = external_link (URL, Title, URLorigin, UrlAccess) .. TransTitle .. TransError .. Format;URL = '';-- unset these because no longer neededFormat = "";elseif is_set (TitleLink) and not is_set (URL) thenlocal ws_url;ws_url = wikisource_url_make (TitleLink);-- ignore ws_label return; not used hereif ws_url thenTitle = external_link (ws_url, Title .. '&nbsp;', 'ws link in title-link');-- space char after Title to move icon away from italic text; TODO: a better way to do this?Title = substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], TitleLink, Title});Title = Title .. TransTitle .. TransError;elseTitle = make_wikilink (TitleLink, Title) .. TransTitle .. TransError;endelselocal ws_url, ws_label;-- Title has italic or quote markup by the time we get here which causes is_wikilink() to return 0 (not a wikilink)ws_url, ws_label, L = wikisource_url_make (Title:gsub('[\'"](.-)[\'"]', '%1'));-- make ws url from |title= interwiki link (strip italic or quote markup); link portion L becomes tool tip labelif ws_url thenTitle = Title:gsub ('%b[]', ws_label);-- replace interwiki link with ws_label to retain markupTitle = external_link (ws_url, Title .. '&nbsp;', 'ws link in title');-- space char after Title to move icon away from italic text; TODO: a better way to do this?Title = substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, Title});Title = Title .. TransTitle .. TransError;elseTitle = Title .. TransTitle .. TransError;endendelseTitle = TransTitle .. TransError;endif is_set(Place) thenPlace = " " .. wrap_msg ('written', Place, use_lowercase) .. sepc .. " ";endif is_set (Conference) thenif is_set (ConferenceURL) thenConference = external_link( ConferenceURL, Conference, ConferenceURLorigin, nil );endConference = sepc .. " " .. Conference .. ConferenceFormat;elseif is_set(ConferenceURL) thenConference = sepc .. " " .. external_link( ConferenceURL, nil, ConferenceURLorigin, nil );endif not is_set(Position) thenlocal Minutes = A['Minutes'];local Time = A['Time'];if is_set(Minutes) thenif is_set (Time) thentable.insert( z.message_tail, { set_error( 'redundant_parameters', {wrap_style ('parameter', 'minutes') .. ' and ' .. wrap_style ('parameter', 'time')}, true ) } );endPosition = " " .. Minutes .. " " .. cfg.messages['minutes'];elseif 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 = '';endPage, Pages, Sheet, Sheets = format_pages_sheets (Page, Pages, Sheet, Sheets, config.CitationClass, Periodical_origin, sepc, NoPP, use_lowercase);At = is_set(At) and (sepc .. " " .. At) or "";Position = is_set(Position) and (sepc .. " " .. Position) or "";if config.CitationClass == 'map' then-- TODO copy this line andlocal Section = A['Section'];-- TODO move this line to c. line 2337 so that separate Sections in aliases{} not required? then unset Chapter?local Sections = A['Sections'];local Inset = A['Inset'];if is_set( Inset ) thenInset = sepc .. " " .. wrap_msg ('inset', Inset, use_lowercase);endif is_set( Sections ) thenSection = sepc .. " " .. wrap_msg ('sections', Sections, use_lowercase);elseif is_set( Section ) thenSection = sepc .. " " .. wrap_msg ('section', Section, use_lowercase);endAt = At .. Inset .. Section;endif is_set (Language) thenLanguage = language_parameter (Language);-- format, categories, name from ISO639-1, etcelseLanguage="";-- language not specified so make sure this is an empty string;--[[ TODO: need to extract the wrap_msg from language_parameterso that we can solve parentheses bunching problem with Format/Language/TitleType]]endOthers = is_set(Others) and (sepc .. " " .. Others) or "";if is_set (Translators) thenOthers = safe_join ({sepc .. ' ', wrap_msg ('translated', Translators, use_lowercase), Others}, sepc);endif is_set (Interviewers) thenOthers = safe_join ({sepc .. ' ', wrap_msg ('interview', Interviewers, use_lowercase), Others}, sepc);endTitleNote = is_set(TitleNote) and (sepc .. " " .. TitleNote) or "";if is_set (Edition) thenif Edition:match ('%f[%a][Ee]d%.?$') or Edition:match ('%f[%a][Ee]dition$') thenadd_maint_cat ('extra_text', 'edition');endEdition = " " .. wrap_msg ('edition', Edition);elseEdition = '';endSeries = is_set (Series) and wrap_msg ('series', {sepc, Series}) or "";-- not the same as SeriesNumOrigYear = is_set (OrigYear) and wrap_msg ('origyear', OrigYear) or '';Agency = is_set (Agency) and wrap_msg ('agency', {sepc, Agency}) or "";Volume = format_volume_issue (Volume, Issue, config.CitationClass, Periodical_origin, sepc, use_lowercase);------------------------------------ totally unrelated dataVia = is_set (Via) and  wrap_msg ('via', Via) or '';if is_set(AccessDate) thenlocal retrv_text = " " .. cfg.messages['retrieved']AccessDate = nowrap_date (AccessDate);-- wrap in nowrap span if date in appropriate formatif (sepc ~= ".") then retrv_text = retrv_text:lower() end-- if mode is cs2, lower caseAccessDate = substitute (retrv_text, AccessDate);-- add retrieved textAccessDate = substitute (cfg.presentation['accessdate'], {sepc, AccessDate});-- allow editors to hide accessdatesendif is_set(ID) then ID = sepc .." ".. ID; end   if "thesis" == config.CitationClass and is_set(Docket) thenID = sepc .." Docket ".. Docket .. ID;end   if "report" == config.CitationClass and is_set(Docket) then-- for cite report when |docket= is setID = sepc .. ' ' .. Docket;-- overwrite ID even if |id= is setendID_list = build_id_list( ID_list, {IdAccessLevels=ID_access_levels, DoiBroken = DoiBroken, ASINTLD = ASINTLD, IgnoreISBN = IgnoreISBN, Embargo=Embargo, Class = Class} );if is_set(URL) thenURL = " " .. external_link( URL, nil, URLorigin, UrlAccess );endif is_set(Quote) thenif Quote:sub(1,1) == '"' and Quote:sub(-1,-1) == '"' then-- if first and last characters of quote are quote marksQuote = Quote:sub(2,-2);-- strip them offendQuote = sepc .." " .. wrap_style ('quoted-text', Quote ); -- wrap in <q>...</q> tagsPostScript = "";-- cs1|2 does not supply terminal punctuation when |quote= is setendlocal Archivedif is_set(ArchiveURL) thenlocal arch_text;if not is_set(ArchiveDate) thenArchiveDate = set_error('archive_missing_date');endif "live" == UrlStatus thenarch_text = cfg.messages['archived'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = sepc .. " " .. substitute( cfg.messages['archived-live'],{ external_link( ArchiveURL, arch_text, A:ORIGIN('ArchiveURL'), nil ) .. ArchiveFormat, ArchiveDate } );if not is_set (OriginalURL) thenArchived = Archived .. " " .. set_error('archive_missing_url');   endelseif is_set(OriginalURL) then-- UrlStatus is empty, 'dead', 'unfit', 'usurped', 'bot: unknown'if in_array (UrlStatus, {'unfit', 'usurped', 'bot: unknown'}) thenarch_text = cfg.messages['archived-unfit'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = sepc .. " " .. arch_text .. ArchiveDate;-- format already styledif 'bot: unknown' == UrlStatus thenadd_maint_cat ('bot:_unknown');-- and add a category if not already addedelseadd_maint_cat ('unfit');-- and add a category if not already addedendelse-- UrlStatus is empty, 'dead'arch_text = cfg.messages['archived-dead'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = sepc .. " " .. substitute( arch_text,{ external_link( OriginalURL, cfg.messages['original'], OriginalURLorigin, OriginalAccess ) .. OriginalFormat, ArchiveDate } );-- format already styledendelse-- OriginalUrl not setarch_text = cfg.messages['archived-missing'];if sepc ~= "." then arch_text = arch_text:lower() endArchived = sepc .. " " .. substitute( arch_text, { set_error('archive_missing_url'), ArchiveDate } );endelseif is_set (ArchiveFormat) thenArchived = ArchiveFormat;-- if set and ArchiveURL not set ArchiveFormat has error messageelseArchived = ""endlocal Lay = '';if is_set(LayURL) thenif is_set(LayDate) then LayDate = " (" .. LayDate .. ")" endif is_set(LaySource) then LaySource = " &ndash; ''" .. safe_for_italics(LaySource) .. "''";elseLaySource = "";endif sepc == '.' thenLay = sepc .. " " .. external_link( LayURL, cfg.messages['lay summary'], A:ORIGIN('LayURL'), nil ) .. LayFormat .. LaySource .. LayDateelseLay = sepc .. " " .. external_link( LayURL, cfg.messages['lay summary']:lower(), A:ORIGIN('LayURL'), nil ) .. LayFormat .. LaySource .. LayDateendelseif is_set (LayFormat) then-- Test if |lay-format= is given without giving a |lay-url=Lay = sepc .. LayFormat;-- if set and LayURL not set, then LayFormat has error messageendif is_set(Transcript) thenif is_set(TranscriptURL) thenTranscript = external_link( TranscriptURL, Transcript, TranscriptURLorigin, nil );endTranscript = sepc .. ' ' .. Transcript .. TranscriptFormat;elseif is_set(TranscriptURL) thenTranscript = external_link( TranscriptURL, nil, TranscriptURLorigin, nil );endlocal Publisher;if is_set(PublicationDate) thenPublicationDate = wrap_msg ('published', PublicationDate);endif is_set(PublisherName) thenif is_set(PublicationPlace) thenPublisher = sepc .. " " .. PublicationPlace .. ": " .. PublisherName .. PublicationDate;elsePublisher = sepc .. " " .. PublisherName .. PublicationDate;  endelseif is_set(PublicationPlace) then Publisher= sepc .. " " .. PublicationPlace .. PublicationDate;else Publisher = PublicationDate;end-- Several of the above rely upon detecting this as nil, so do it last.if (is_set (Periodical) or is_set (ScriptPeriodical) or is_set (TransPeriodical)) thenif is_set(Title) or is_set(TitleNote) then Periodical = sepc .. " " .. format_periodical (ScriptPeriodical, ScriptPeriodical_origin, Periodical, TransPeriodical);else Periodical = format_periodical (ScriptPeriodical, ScriptPeriodical_origin, Periodical, TransPeriodical);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 tcommon;local tcommon2;-- used for book cite when |contributor= is setif in_array(config.CitationClass, {"journal","citation"}) and is_set(Periodical) thenif is_set(Others) then Others = safe_join ({Others, sepc .. " "}, sepc) end-- add terminal punctuation & space; check for dup sepc; TODO why do we need to do this here?tcommon = safe_join( {Others, Title, TitleNote, Conference, Periodical, Format, TitleType, Series, Language, Edition, Publisher, Agency, Volume}, sepc );elseif in_array(config.CitationClass, {"book","citation"}) and not is_set(Periodical) then-- special cases for book citesif is_set (Contributors) then-- when we are citing foreword, preface, introduction, etctcommon = safe_join( {Title, TitleNote}, sepc );-- author and other stuff will come after this and before tcommon2tcommon2 = safe_join( {Conference, Periodical, Format, TitleType, Series, Language, Volume, Others, Edition, Publisher, Agency}, sepc );elsetcommon = safe_join( {Title, TitleNote, Conference, Periodical, Format, TitleType, Series, Language, Volume, Others, Edition, Publisher, Agency}, sepc );endelseif 'map' == config.CitationClass then-- special cases for cite mapif is_set (Chapter) then-- map in a book; TitleType is part of Chaptertcommon = safe_join( {Title, Format, Edition, Scale, Series, Language, Cartography, Others, Publisher, Volume}, sepc );elseif is_set (Periodical) then-- map in a periodicaltcommon = safe_join( {Title, TitleType, Format, Periodical, Scale, Series, Language, Cartography, Others, Publisher, Volume}, sepc );else-- a sheet or stand-alone maptcommon = safe_join( {Title, TitleType, Format, Edition, Scale, Series, Language, Cartography, Others, Publisher}, sepc );endelseif 'episode' == config.CitationClass then-- special case for cite episodetcommon = safe_join( {Title, TitleNote, TitleType, Series, Language, Edition, Publisher}, sepc );else-- all other CS1 templatestcommon = safe_join( {Title, TitleNote, Conference, Periodical, Format, TitleType, Series, Language, Volume, Others, Edition, Publisher, Agency}, sepc );endif #ID_list > 0 thenID_list = safe_join( { sepc .. " ",  table.concat( ID_list, sepc .. " " ), ID }, sepc );elseID_list = ID;endlocal idcommon;if 'audio-visual' == config.CitationClass or 'episode' == config.CitationClass then-- special case for cite AV media & cite episode position transcriptidcommon = safe_join( { ID_list, URL, Archived, Transcript, AccessDate, Via, Lay, Quote }, sepc );elseidcommon = safe_join( { ID_list, URL, Archived, AccessDate, Via, Lay, Quote }, sepc );endlocal text;local pgtext = Position .. Sheet .. Sheets .. Page .. Pages .. At;if is_set(Date) thenif is_set (Authors) or is_set (Editors) then-- date follows authors or editors when authors not setDate = " (" .. Date ..")" .. OrigYear .. sepc .. " ";-- in paranetheseselse-- neither of authors and editors setif (string.sub(tcommon,-1,-1) == sepc) then-- if the last character of tcommon is sepcDate = " " .. Date .. OrigYear;-- Date does not begin with sepcelseDate = sepc .. " " .. Date .. OrigYear;-- Date begins with sepcendendendif is_set(Authors) thenif (not is_set (Date)) then-- when date is set it's in parentheses; no Authors terminationAuthors = terminate_name_list (Authors, sepc);-- when no date, terminate with 0 or 1 sepc and a spaceendif is_set(Editors) thenlocal in_text = " ";local post_text = "";if is_set(Chapter) and 0 == #c thenin_text = in_text .. cfg.messages['in'] .. " "if (sepc ~= '.') thenin_text = in_text:lower()-- lowercase for cs2endendif EditorCount <= 1 thenpost_text = " (" .. cfg.messages['editor'] .. ")";-- be consistent with no-author, no-date caseelsepost_text = " (" .. cfg.messages['editors'] .. ")";endEditors = terminate_name_list (in_text .. Editors .. post_text, sepc);-- terminate with 0 or 1 sepc and a spaceendif is_set (Contributors) then-- book cite and we're citing the intro, preface, etclocal by_text = sepc .. ' ' .. cfg.messages['by'] .. ' ';if (sepc ~= '.') then by_text = by_text:lower() end-- lowercase for cs2Authors = by_text .. Authors;-- author follows title so tweak it hereif is_set (Editors) and is_set (Date) then-- when Editors make sure that Authors gets terminatedAuthors = terminate_name_list (Authors, sepc);-- terminate with 0 or 1 sepc and a spaceendif (not is_set (Date)) then-- when date is set it's in parentheses; no Contributors terminationContributors = terminate_name_list (Contributors, sepc);-- terminate with 0 or 1 sepc and a spaceendtext = safe_join( {Contributors, Date, Chapter, tcommon, Authors, Place, Editors, tcommon2, pgtext, idcommon }, sepc );elsetext = safe_join( {Authors, Date, Chapter, Place, Editors, tcommon, pgtext, idcommon }, sepc );endelseif is_set(Editors) thenif is_set(Date) thenif EditorCount <= 1 thenEditors = Editors .. ", " .. cfg.messages['editor'];elseEditors = Editors .. ", " .. cfg.messages['editors'];endelseif EditorCount <= 1 thenEditors = Editors .. " (" .. cfg.messages['editor'] .. ")" .. sepc .. " "elseEditors = Editors .. " (" .. cfg.messages['editors'] .. ")" .. sepc .. " "endendtext = safe_join( {Editors, Date, Chapter, Place, tcommon, pgtext, idcommon}, sepc );elseif in_array(config.CitationClass, {"journal","citation"}) and is_set(Periodical) thentext = safe_join( {Chapter, Place, tcommon, pgtext, Date, idcommon}, sepc );elsetext = safe_join( {Chapter, Place, tcommon, Date, pgtext, idcommon}, sepc );endendif is_set(PostScript) and PostScript ~= sepc thentext = safe_join( {text, sepc}, sepc ); --Deals with italics, spaces, etc.text = text:sub(1,-sepc:len()-1);endtext = safe_join( {text, PostScript}, sepc );-- Now enclose the whole thing in a <cite/> elementlocal options = {};if is_set(config.CitationClass) and config.CitationClass ~= "citation" thenoptions.class = config.CitationClass;options.class = "citation " .. config.CitationClass;-- class=citation required for blue highlight when used with |ref=elseoptions.class = "citation";endif is_set(Ref) and 'none' ~= cfg.keywords_xlate[Ref:lower()] thenlocal id = Refif ('harv' == Ref ) thenlocal namelist = {};-- holds selected contributor, author, editor name listlocal year = first_set ({Year, anchor_year}, 2);-- Year first for legacy citations and for YMD dates that require disambiguationif #c > 0 then-- if there is a contributor listnamelist = c;-- select itelseif #a > 0 then-- or an author listnamelist = a;elseif #e > 0 then-- or an editor listnamelist = e;endif #namelist > 0 then-- if there are names in namelistid = anchor_id (namelist, year);-- go make the CITEREF anchorelseid = '';-- unsetendendoptions.id = id;endif string.len(text:gsub("<span[^>/]*>(.-)</span>", "%1"):gsub("%b<>","")) <= 2 then-- remove <span> tags and other html-like markup; then get length of what remainsz.error_categories = {};text = set_error('empty_citation');z.message_tail = {};endlocal render = {};-- here we collect the final bits for concatenation into the rendered citationif is_set(options.id) then-- here we wrap the rendered citation in <cite ...>...</cite> tagstable.insert (render, substitute (cfg.presentation['cite-id'], {mw.uri.anchorEncode(options.id), mw.text.nowiki(options.class), text}));-- when |ref= is setelsetable.insert (render, substitute (cfg.presentation['cite'], {mw.text.nowiki(options.class), text}));-- all other casesendtable.insert (render, substitute (cfg.presentation['ocins'], {OCinSoutput}));-- append metadata to the citationif 0 ~= #z.message_tail thentable.insert (render, ' ');for i,v in ipairs( z.message_tail ) doif is_set(v[1]) thenif i == #z.message_tail thentable.insert (render, error_comment( v[1], v[2] ));elsetable.insert (render, error_comment( v[1] .. "; ", v[2] ));endendendendif 0 ~= #z.maintenance_cats thenlocal maint_msgs = {};-- here we collect all of the maint messagesfor _, v in ipairs( z.maintenance_cats ) do-- append maintenance categorieslocal maint = {};-- here we assemble a maintenence messagetable.insert (maint, v);-- maint msg is the category nametable.insert (maint, ' (');-- open the link texttable.insert (maint, make_wikilink (':Category:' .. v, 'link'));-- add the linktable.insert (maint, ')');-- and close ittable.insert (maint_msgs, table.concat (maint));-- assemble new maint message and add it to the maint_msgs tableendtable.insert (render, substitute (cfg.presentation['hidden-maint'], table.concat (maint_msgs, ' ')));-- wrap the group of maint message with proper presentation and saveendif not no_tracking_cats thenfor _, v in ipairs( z.error_categories ) dotable.insert (render, make_wikilink ('Category:' .. v));endfor _, v in ipairs( z.maintenance_cats ) do-- append maintenance categoriestable.insert (render, make_wikilink ('Category:' .. v));endfor _, v in ipairs( z.properties_cats ) do-- append properties categoriestable.insert (render, make_wikilink ('Category:' .. v));endendreturn table.concat (render);end--[[--------------------------< V A L I D A T E >--------------------------------------------------------------Looks for a parameter's name in one of several whitelists.Parameters in the whitelist can have three values:true - active, supported parametersfalse - deprecated, supported parametersnil - unsupported parameters]]local function validate (name, cite_class)local name = tostring (name);local state;local function state_test (state, name)-- local function to do testing of state valuesif true == state then return true; end-- valid actively supported parameterif false == state thendeprecated_parameter (name);-- parameter is deprecated but still supportedreturn true;endreturn nil;endif name:find ('#') then-- # is a cs1|2 reserved character so parameters with # not permittedreturn nil;endif in_array (cite_class, whitelist.preprint_template_list ) then-- limited parameter sets allowed for these templatesstate = whitelist.limited_basic_arguments[name];if true == state_test (state, name) then return true; endstate = whitelist.preprint_arguments[cite_class][name];-- look in the parameter-list for the template identified by cite_classif true == state_test (state, name) then return true; end-- limited enumerated parameters listname = name:gsub("%d+", "#" );-- replace digit(s) with # (last25 becomes last#) (mw.ustring because non-Western 'local' digits)state = whitelist.limited_numbered_arguments[name];if true == state_test (state, name) then return true; endreturn false;-- not supported because not found or name is set to nilend-- end limited parameter-set templatesif in_array (cite_class, whitelist.unique_param_template_list) then-- experiment for template-specific parameters for templates that accept parameters from the basic argument liststate = whitelist.unique_arguments[cite_class][name];-- look in the template-specific parameter-lists for the template identified by cite_classif true == state_test (state, name) then return true; endend-- if here, fall into general validationstate = whitelist.basic_arguments[name];-- all other templates; all normal parameters allowedif true == state_test (state, name) then return true; end-- all enumerated parameters allowedname = name:gsub("%d+", "#" );-- replace digit(s) with # (last25 becomes last#) (mw.ustring because non-Western 'local' digits)state = whitelist.numbered_arguments[name];if true == state_test (state, name) then return true; endreturn false;-- not supported because not found or name is set to nilend--[[--------------------------< M I S S I N G _ P I P E _ C H E C K >------------------------------------------Look at the contents of a parameter. If the content has a string of characters and digits followed by an equalsign, compare the alphanumeric string to the list of cs1|2 parameters.  If found, then the string is possibly aparameter that is missing its pipe:{{cite ... |title=Title access-date=2016-03-17}}cs1|2 shares some parameter names with xml/html atributes: class=, title=, etc.  To prevent false positives xml/htmltags are removed before the search.If a missing pipe is detected, this function adds the missing pipe maintenance category.]]local function missing_pipe_check (parameter, value)local capture;value = value:gsub ('%b<>', '');-- remove xml/html tags because attributes: class=, title=, etc capture = value:match ('%s+(%a[%w%-]+)%s*=') or value:match ('^(%a[%w%-]+)%s*=');-- find and categorize parameters with possible missing pipesif capture and validate (capture) then-- if the capture is a valid parameter nametable.insert( z.message_tail, {set_error ('missing_pipe',parameter)});endend--[[--------------------------< H A S _ E X T R A N E O U S _ P U N C T >--------------------------------------look for extraneous terminal punctuation in most parameter values; parameters listed in skip table are not checked]]local function has_extraneous_punc (param, value)if cfg.punct_skip[param] thenreturn;-- parameter name found in the skip table so doneendif value:match ('[,;:]$') thenadd_maint_cat ('extra_punct');-- has extraneous punctuation; add maint catendend--[[--------------------------< C I T A T I O N >--------------------------------------------------------------This is used by templates such as {{cite book}} to create the actual citation text.]]local function citation(frame)Frame = frame;-- save a copy incase we need to display an error message in preview modelocal pframe = frame:getParent()local validation, utilities, identifiers, metadata, styles;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 support moduleswhitelist = mw.loadData ('Module:Citation/CS1/Whitelist/sandbox');utilities = require ('Module:Citation/CS1/Utilities/sandbox');validation = require ('Module:Citation/CS1/Date_validation/sandbox');identifiers = require ('Module:Citation/CS1/Identifiers/sandbox');metadata = require ('Module:Citation/CS1/COinS/sandbox');styles = 'Module:Citation/CS1/sandbox/styles.css';else-- otherwisecfg = mw.loadData ('Module:Citation/CS1/Configuration');-- load live versions of support moduleswhitelist = mw.loadData ('Module:Citation/CS1/Whitelist');utilities = require ('Module:Citation/CS1/Utilities');validation = require ('Module:Citation/CS1/Date_validation');identifiers = require ('Module:Citation/CS1/Identifiers');metadata = require ('Module:Citation/CS1/COinS');styles = 'Module:Citation/CS1/styles.css';endutilities.set_selected_modules (cfg);-- so that functions in Utilities can see the cfg tablesidentifiers.set_selected_modules (cfg, utilities);-- so that functions in Identifiers can see the selected cfg tables and selected Utilities modulevalidation.set_selected_modules (cfg, utilities);-- so that functions in Date validataion can see selected cfg tables and the selected Utilities modulemetadata.set_selected_modules (cfg, utilities);-- so that functions in COinS can see the selected cfg tables and selected Utilities moduledates = validation.dates;-- imported functions from Module:Citation/CS1/Date validationyear_date_check = validation.year_date_check;reformat_dates = validation.reformat_dates;date_hyphen_to_dash = validation.date_hyphen_to_dash;date_name_xlate = validation.date_name_xlate;is_set = utilities.is_set;-- imported functions from Module:Citation/CS1/Utilitiesin_array = utilities.in_array;substitute = utilities.substitute;error_comment = utilities.error_comment;set_error = utilities.set_error;select_one = utilities.select_one;add_maint_cat = utilities.add_maint_cat;wrap_style = utilities.wrap_style;safe_for_italics = utilities.safe_for_italics;is_wikilink = utilities.is_wikilink;make_wikilink = utilities.make_wikilink;strip_apostrophe_markup = utilities.strip_apostrophe_markup;z = utilities.z;-- table of error and category tables in Module:Citation/CS1/Utilitiesextract_ids = identifiers.extract_ids;-- imported functions from Module:Citation/CS1/Identifiersbuild_id_list = identifiers.build_id_list;is_embargoed = identifiers.is_embargoed;extract_id_access_levels = identifiers.extract_id_access_levels;make_coins_title = metadata.make_coins_title;-- imported functions from Module:Citation/CS1/COinSget_coins_pages = metadata.get_coins_pages;COinS = metadata.COinS;local args = {};-- table where we store all of the template's argumentslocal suggestions = {};-- table where we store suggestions if we need to loadData themlocal error_text, error_state;local config = {};-- table to store parameters from the module {{#invoke:}}for k, v in pairs( frame.args ) doconfig[k] = v;--args[k] = v;-- debug tool that allows us to render a citation from module {{#invoke:}}endlocal capture;-- the single supported capture when matching unknown parameters using patternsfor k, v in pairs( pframe.args ) doif v ~= '' thenif ('string' == type (k)) thenk = mw.ustring.gsub (k, '%d', cfg.date_names.local_digits);-- for enumerated parameters, translate 'local' digits to Western 0-9endif not validate( k, config.CitationClass ) thenerror_text = "";if type( k ) ~= 'string' then-- Exclude empty numbered parametersif v:match("%S+") ~= nil thenerror_text, error_state = set_error( 'text_ignored', {v}, true );endelseif validate( k:lower(), config.CitationClass ) then error_text, error_state = set_error( 'parameter_ignored_suggest', {k, k:lower()}, true );-- suggest the lowercase version of the parameterelseif nil == suggestions.suggestions then-- if this table is nil then we need to load itif nil ~= string.find (frame:getTitle(), 'sandbox', 1, true) then-- did the {{#invoke:}} use sandbox version?suggestions = mw.loadData( 'Module:Citation/CS1/Suggestions/sandbox' );-- use the sandbox versionelsesuggestions = mw.loadData( 'Module:Citation/CS1/Suggestions' );-- use the live versionendendfor pattern, param in pairs (suggestions.patterns) do-- loop through the patterns to see if we can suggest a proper parametercapture = k:match (pattern);-- the whole match if no caputre in pattern else the capture if a matchif capture then-- if the pattern matches param = substitute (param, capture);-- add the capture to the suggested parameter (typically the enumerator)if validate (param, config.CitationClass) then-- validate the suggestion to make sure that the suggestion is supported by this template (necessary for limited parameter lists)error_text, error_state = set_error ('parameter_ignored_suggest', {k, param}, true);-- set the suggestion error messageelseerror_text, error_state = set_error( 'parameter_ignored', {param}, true );-- suggested param not supported by this templatev = '';-- unsetendendendif not is_set (error_text) then-- couldn't match with a pattern, is there an expicit suggestion?if suggestions.suggestions[ k:lower() ] ~= nil thenerror_text, error_state = set_error( 'parameter_ignored_suggest', {k, suggestions.suggestions[ k:lower() ]}, true );elseerror_text, error_state = set_error( 'parameter_ignored', {k}, true );v = '';-- unset value assigned to unrecognized parameters (this for the limited parameter lists)endendend  if error_text ~= '' thentable.insert( z.message_tail, {error_text, error_state} );endendmissing_pipe_check (k, v);-- do we think that there is a parameter that is missing a pipe?-- TODO: is this the best place for this translation?args[k] = v;elseif args[k] ~= nil or (k == 'postscript') then-- here when v is empty stringargs[k] = v;-- why do we do this?  we don't support 'empty' parametersendendfor k, v in pairs( args ) doif 'string' == type (k) then-- don't evaluate positional parametershas_invisible_chars (k, v);has_extraneous_punc (k, v);-- look for extraneous terminal punctuation in parameter valuesendendreturn table.concat ({citation0( config, args), frame:extensionTag ('templatestyles', '', {src=styles})});end--[[--------------------------< E X P O R T E D   F U N C T I O N S >------------------------------------------]]return {citation = citation};