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پودمان:Citation/CS1: تفاوت میان نسخه‌ها

پودمان:Citation/CS1 (نمایش مبدأ)

نسخهٔ ‏۲۳ اکتبر ۲۰۲۲، ساعت ۰۷:۴۷

۹۶٬۳۰۵ بایت اضافه‌شده ،  ‏۲۳ اکتبر ۲۰۲۲
Replace Module:No globals with require( "strict" )
جز (۱ نسخه واردشده)
 
(Replace Module:No globals with require( "strict" ))
خط ۱: خط ۱:
-- در زمان به روزرسانی توجه کنید که کد بومی شده‌است لطفا تغییرات انجام شده را در به‌روزرسانی اعمال نمایید.
require ('strict');


local z = {
--[[--------------------------< F O R W A R D  D E C L A R A T I O N S >--------------------------------------
error_categories = {}; -- for categorizing citations that contain errors
error_ids = {};
message_tail = {};
maintenance_cats = {}; -- for categorizing citations that aren't erroneous per se, but could use a little work
properties_cats = {}; -- for categorizing citations based on certain properties, language of source for instance
}


-- Whether variable is set or not
each of these counts against the Lua upvalue limit
function is_set( var )
return not (var == nil or var == '');
end


-- First set variable or nil if none
]]
function first_set(...)
local list = {...};
for _, var in pairs(list) do
if is_set( var ) then
return var;
end
end
end


-- Whether needle is in haystack
local validation; -- functions in Module:Citation/CS1/Date_validation
function inArray( needle, haystack )
if needle == nil then
return false;
end
for n,v in ipairs( haystack ) do
if v == needle then
return n;
end
end
return false;
end


--[[
local utilities; -- functions in Module:Citation/CS1/Utilities
Categorize and emit an error message when the citation contains one or more deprecated parameters.  Because deprecated parameters (currently |month=,
local z ={}; -- table of tables in Module:Citation/CS1/Utilities
|coauthor=, and |coauthors=) aren't related to each other and because these parameters may be concatenated into the variables used by |date= and |author#= (and aliases)
details of which parameter caused the error message are not provided.  Only one error message is emitted regardless of the number of deprecated parameters in the citation.
]]
function deprecated_parameter(name)
if true ~= Page_in_deprecated_cat then -- if we haven't been here before then set a
Page_in_deprecated_cat=true; -- sticky flag so that if there are more than one deprecated parameter the category is added only once
table.insert( z.message_tail, { seterror( 'deprecated_params', {name}, true ) } ); -- add error message
end
end


-- Populates numbered arguments in a message string using an argument table.
local identifiers; -- functions and tables in Module:Citation/CS1/Identifiers
function substitute( msg, args )
local metadata; -- functions in Module:Citation/CS1/COinS
return args and mw.message.newRawMessage( msg, args ):plain() or msg;
local cfg = {}; -- table of configuration tables that are defined in Module:Citation/CS1/Configuration
end
local whitelist = {}; -- table of tables listing valid template parameter names; defined in Module:Citation/CS1/Whitelist


--[[--------------------------< 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 quote mark contained in a |title= or |chapter= parameter's value.
--[[------------------< P A G E  S C O P E  V A R I A B L E S >---------------
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.


Call this function for chapter titles, for website titles, etc; not for book titles.
declare variables here that have page-wide scope that are not brought in from
other modules; that are created here and used here


]]
]]


function kern_quotes (str)
local added_deprecated_cat; -- Boolean flag so that the category is added only once
local cap='';
local added_vanc_errs; -- Boolean flag so we only emit one Vancouver error / category
local cap2='';
local added_generic_name_errs; -- Boolean flag so we only emit one generic name error / category and stop testing names once an error is encountered
local Frame; -- holds the module's frame table
cap, cap2 = str:match ("^([\"\'])([^\'].+)"); -- match leading double or single quote but not double single quotes
local is_preview_mode; -- true when article is in preview mode; false when using 'Preview page with this template' (previewing the module)
if is_set (cap) then
local is_sandbox; -- true when using sandbox modules to render citation
str = substitute (cfg.presentation['kern-left'], {cap, cap2});
end


cap, cap2 = str:match ("^(.+[^\'])([\"\'])$")
if is_set (cap) then
str = substitute (cfg.presentation['kern-right'], {cap, cap2});
end
return str;
end


--[[--------------------------< F O R M A T _ S C R I P T _ V A L U E >----------------------------------------
--[[--------------------------< F I R S T _ S E T >------------------------------------------------------------


|script-title= holds title parameters that are not written in Latin based scripts: Chinese, Japanese, Arabic, Hebrew, etc. These scripts should
Locates and returns the first set value in a table of values where the order established in the table,
not be italicized and may be written right-to-left.  The value supplied by |script-title= is concatenated onto Title after Title has been wrapped
left-to-right (or top-to-bottom), is the order in which the values are evaluated.  Returns nil if none are set.
in 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.
This version replaces the original 'for _, val in pairs do' and a similar version that used ipairs. With the pairs
version the order of evaluation could not be guaranteed. With the ipairs version, a nil value would terminate
the for-loop before it reached the actual end of the list.


|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 can
know the language the tag contains.  This may help the browser render the script more correctly.  If the prefix is invalid, the lang attribute
is not added.  At this time there is no error message for this condition.
At this writing, only |script-title= is supported.  It is anticipated that additional parameters will be created to use this function.
TODO: error messages when prefix is invalid ISO639-1 code; when script_value has prefix but no script;
]]
]]


function format_script_value (script_value)
local function first_set (list, count)
local lang=''; -- initialize to empty string
local i = 1;
local name;
while i <= count do -- loop through all items in list
if script_value:match('^%l%l%s*:') then -- if first 3 non-space characters are script language prefix
if utilities.is_set( list[i] ) then
lang = script_value:match('^(%l%l)%s*:%s*%S.*'); -- get the language prefix or nil if there is no script
return list[i]; -- return the first set list member
if not is_set (lang) then
return ''; -- script_value was just the prefix so return empty string
end
-- if we get this far we have prefix and script
name = mw.language.fetchLanguageName( lang, "en" ); -- get language name so that we can use it to categorize
if is_set (name) then -- is prefix a proper ISO 639-1 language code?
script_value = script_value:gsub ('^%l%l%s*:%s*', ''); -- strip prefix from script
-- is prefix one of these language codes?
if inArray (lang, {'ar', 'bs', 'dv', 'el', 'fa', 'hy', 'ja', 'ko', 'ku', 'he', 'ps', 'ru', 'sd', 'sr', 'th', 'uk', 'ug', 'yi', 'zh'}) then
table.insert( z.properties_cats, 'CS1 uses ' .. name .. '-language script ('..lang..')'); -- categorize in language-specific categories
else
table.insert( z.properties_cats, 'CS1 uses foreign language script'); -- use this category as a catchall until language-specific category is available
end
lang = ' lang="' .. lang .. '" '; -- convert prefix into a lang attribute
else
lang = ''; -- invalid so set lang to empty string
end
end
i = i + 1; -- point to next
end
end
script_value = substitute (cfg.presentation['bdi'], {lang, script_value}); -- isolate in case script is rtl
return script_value;
end
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
--[[--------------------------< A D D _ V A N C _ E R R O R >----------------------------------------------------
wrapped in <bdi> tags.
]]


function script_concatenate (title, script)
Adds a single Vancouver system error message to the template's output regardless of how many error actually exist.
if is_set (script) then
To prevent duplication, added_vanc_errs is nil until an error message is emitted.
script = format_script_value (script); -- <bdi> tags, lang atribute, categorization, etc; returns empty string on error
if is_set (script) then
title = title .. ' ' .. script; -- concatenate title and script title
end
end
return title;
end


 
added_vanc_errs is a Boolean declared in page scope variables above
--[[--------------------------< W R A P _ S T Y L E >----------------------------------------------------------
 
Applies styling to various parameters.  Supplied string is wrapped using a message_list configuration taking one
argument; protects italic styled parameters.  Additional text taken from citation_config.presentation - the reason
this function is similar to but separate from wrap_msg().


]]
]]


function wrap_style (key, str)
local function add_vanc_error (source, position)
if not is_set( str ) then
if added_vanc_errs then return end
return "";
elseif inArray( key, { 'italic-title', 'trans-italic-title' } ) then
added_vanc_errs = true; -- note that we've added this category
str = safeforitalics( str );
utilities.set_message ('err_vancouver', {source, position});
end
end


return substitute( cfg.presentation[key], {str} );
end


--[[--------------------------< I S _ S C H E M E >------------------------------------------------------------


--[[--------------------------< W R A P _ M S G >--------------------------------------------------------------
does this thing that purports to be a URI scheme seem to be a valid scheme?  The scheme is checked to see if it
is 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 ("-").


Applies additional message text to various parameter values. Supplied string is wrapped using a message_list
returns true if it does, else false
configuration taking one argument.  Supports lower case text for {{citation}} templates.  Additional text taken
from citation_config.messages - the reason this function is similar to but separate from wrap_style().


]]
]]


function wrap_msg (key, str, lower)
local function is_scheme (scheme)
if not is_set( str ) then
return scheme and scheme:match ('^%a[%a%d%+%.%-]*:'); -- true if scheme is set and matches the pattern
return "";
end
if true == lower then
local msg;
msg = cfg.messages[key]:lower(); -- set the message to lower case before
str = substitute( msg, {str} ); -- including template text
return str;
else
return substitute( cfg.messages[key], {str} );
end
end
end


--[[--------------------------< F O R M A T _ C H A P T E R _ T I T L E >--------------------------------------


Format the three chapter parameters: |chapter=, |trans-chapter=, and |chapter-url= into a single Chapter meta-
--[=[-------------------------< I S _ D O M A I N _ N A M E >--------------------------------------------------
parameter (chapter_url_source used for error messages).
 
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-3.5
BNF defined here: https://tools.ietf.org/html/rfc4234
Single 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/db
 
RFC 952 (modified by RFC 1123) requires the first and last character of a hostname to be a letter or a digit.  Between
the first and last characters the name may use letters, digits, and the hyphen.


function format_chapter_title (chapter, transchapter, chapterurl, chapter_url_source)
Also allowed are IPv4 addresses. IPv6 not supported
local chapter_error = '';
 
domain is expected to be stripped of any path so that the last character in the last character of the TLD.  tld
is two or more alpha characters.  Any preceding '//' (from splitting a URL with a scheme) will be stripped
here.  Perhaps not necessary but retained in case 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 digit
internationalized domain name (ASCII characters with .xn-- ASCII Compatible Encoding (ACE) prefix xn-- in the TLD) see https://tools.ietf.org/html/rfc3490
single-letter/digit second-level domains in the .org, .cash, and .today TLDs
q, x, and z SL domains in the .com TLD
i and q SL domains in the .net TLD
single-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 allowed
 
returns 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 then
return false; -- if not set, abandon
end
if not is_set (chapter) then
domain = domain:gsub ('^//', ''); -- strip '//' from domain name if present; done here so we only have to do it once
chapter = ''; -- just to be safe for concatenation
if is_set (transchapter) then
if not domain:match ('^[%w]') then -- first character must be letter or digit
chapter = wrap_style ('trans-quoted-title', transchapter);
return false;
chapter_error = " " .. seterror ('trans_missing_chapter');
end
 
if domain:match ('^%a+:') then -- hack to detect things that look like s:Page:Title where Page: is namespace at Wikisource
return false;
end
 
local 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 list
if domain:match (pattern) then
return true; -- if a match then we think that this thing that purports to be a URL is a URL
end
end
if is_set (chapterurl) then
end
chapter = externallink (chapterurl, chapter, chapter_url_source); -- adds bare_url_missing_title error if appropriate
 
end
for _, d in ipairs ({'cash', 'company', 'today', 'org'}) do -- look for single letter second level domain names for these top level domains
return chapter .. chapter_error;
if domain:match ('%f[%w][%w]%.' .. d) then
else -- here when chapter is set
return true
chapter = kern_quotes (chapter); -- if necessary, separate chapter title's leading and trailing quote marks from Module provided quote marks
chapter = wrap_style ('quoted-title', chapter);
if is_set (transchapter) then
transchapter = wrap_style ('trans-quoted-title', transchapter);
chapter = chapter .. ' ' .. transchapter;
end
if is_set (chapterurl) then
chapter = externallink (chapterurl, chapter); -- adds bare_url_missing_title error if appropriate
end
end
end
end
return chapter;
return false; -- no matches, we don't know what this thing is
end
end


--[[
 
Argument wrapper. This function provides support for argument
--[[--------------------------< I S _ U R L >------------------------------------------------------------------
mapping defined in the configuration file so that multiple names
 
can be transparently aliased to single internal variable.
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 that
are not covered by split_url(), for example is_parameter_ext_wikilink() which is looking for bracketted external
wikilinks.
 
]]
]]
function argument_wrapper( args )
 
local origin = {};
local function is_url (scheme, domain)
if utilities.is_set (scheme) then -- if scheme is set check it and domain
return is_scheme (scheme) and is_domain_name (domain);
else
return is_domain_name (domain); -- scheme not set when URL is protocol-relative
end
end
 
 
--[[--------------------------< 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 (one
or more '/' characters immediately following the scheme's colon), make sure that there are only 2.
 
Any URL that does not have news: scheme must have authority indicator (//).  TODO: are there other common schemes
like news: that don't use authority indicator?
 
Strip off any port and path;
 
]]
 
local function split_url (url_str)
local scheme, authority, domain;
return setmetatable({
url_str = url_str:gsub ('([%a%d])%.?[/%?#].*$', '%1'); -- strip FQDN terminator and path(/), query(?), fragment (#) (the capture prevents false replacement of '//')
ORIGIN = function( self, k )
 
local dummy = self[k]; --force the variable to be loaded.
if url_str:match ('^//%S*') then -- if there is what appears to be a protocol-relative URL
return origin[k];
domain = 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 name
scheme, authority, domain = url_str:match ('(%S-:)(/*)(%S+)'); -- extract the scheme, authority indicator, and domain portions
if utilities.is_set (authority) then
authority = authority:gsub ('//', '', 1); -- replace place 1 pair of '/' with nothing;
if utilities.is_set(authority) then -- if anything left (1 or 3+ '/' where authority should be) then
return scheme; -- return scheme only making domain nil which will cause an error message
end
else
if not scheme:match ('^news:') then -- except for news:..., MediaWiki won't link URLs that do not have authority indicator; TODO: a better way to do this test?
return scheme; -- return scheme only making domain nil which will cause an error message
end
end
end
},
domain = domain:gsub ('(%a):%d+', '%1'); -- strip port number if present
{
end
__index = function ( tbl, k )
if origin[k] ~= nil then
return scheme, domain;
return nil;
end
local args, list, v = args, cfg.aliases[k];
if type( list ) == 'table' then
v, origin[k] = selectone( args, list, 'redundant_parameters' );
if origin[k] == nil then
origin[k] = ''; -- Empty string, not nil
end
elseif list ~= nil then
v, origin[k] = args[list], list;
else
-- maybe let through instead of raising an error?
-- v, origin[k] = args[k], k;
error( cfg.messages['unknown_argument_map'] );
end
-- Empty strings, not nil;
if v == nil then
v = cfg.defaults[k] or '';
origin[k] = '';
end
tbl = rawset( tbl, k, v );
return v;
end,
});
end
end


--[[
Looks for a parameter's name in the whitelist.


Parameters in the whitelist can have three values:
--[[--------------------------< L I N K _ P A R A M _ O K >---------------------------------------------------
true - active, supported parameters
 
false - deprecated, supported parameters
checks the content of |title-link=, |series-link=, |author-link=, etc. for properly formatted content: no wikilinks, no URLs
nil - unsupported parameters
 
Link 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 links
 
returns 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).
 
]]
]]
function validate( name )
 
local name = tostring( name );
local function link_param_ok (value)
local state = whitelist.basic_arguments[ name ];
local scheme, domain;
if value:find ('[<>%[%]|{}]') then -- if any prohibited characters
-- Normal arguments
return false;
if true == state then return true; end -- valid actively supported parameter
if false == state then
deprecated_parameter (name); -- parameter is deprecated but still supported
return true;
end
end
 
-- Arguments with numbers in them
scheme, domain = split_url (value); -- get scheme or nil and domain or nil from URL;  
name = name:gsub( "%d+", "#" ); -- replace digit(s) with # (last25 becomes last#
return not is_url (scheme, domain); -- return true if value DOES NOT appear to be a valid URL
state = whitelist.numbered_arguments[ name ];
if true == state then return true; end -- valid actively supported parameter
if false == state then
deprecated_parameter (name); -- parameter is deprecated but still supported
return true;
end
return false; -- Not supported because not found or name is set to nil
end
end


--[[--------------------------< E R R O R C O M M E N T >------------------------------------------------------


Wraps error messages with css markup according to the state of hidden.
--[[--------------------------< 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 wiki-linked but not when |<param>-link= has a value.  This function emits an error message when
that condition exists
 
check <link> for inter-language interwiki-link prefix.  prefix must be a MediaWiki-recognized language
code and must begin with a colon.


]]
]]
function errorcomment( content, hidden )
return substitute( hidden and cfg.presentation['hidden-error'] or cfg.presentation['visible-error'], content );
end


--[[
local function link_title_ok (link, lorig, title, torig)
Sets an error condition and returns the appropriate error message.  The actual placement
local orig;
of the error message in the output is the responsibility of the calling function.
if utilities.is_set (link) then -- don't bother if <param>-link doesn't have a value
]]
if not link_param_ok (link) then -- check |<param>-link= markup
function seterror( error_id, arguments, raw, prefix, suffix )
orig = lorig; -- identify the failing link parameter
local error_state = cfg.error_conditions[ error_id ];
elseif title:find ('%[%[') then -- check |title= for wikilink markup
orig = torig; -- identify the failing |title= parameter
elseif link:match ('^%a+:') then -- if the link is what looks like an interwiki
local prefix = link:match ('^(%a+):'):lower(); -- get the interwiki prefix
 
if cfg.inter_wiki_map[prefix] then -- if prefix is in the map, must have preceding colon
orig = lorig; -- flag as error
end
end
end
 
if utilities.is_set (orig) then
link = ''; -- unset
utilities.set_message ('err_bad_paramlink', orig); -- URL or wikilink in |title= with |title-link=;
end
prefix = prefix or "";
return link; -- link if ok, empty string else
suffix = suffix or "";
if error_state == nil then
error( cfg.messages['undefined_error'] );
elseif is_set( error_state.category ) then
table.insert( z.error_categories, error_state.category );
end
local message = substitute( error_state.message, arguments );
message = message .. " ([[" .. cfg.messages['help page link'] ..
"#" .. error_state.anchor .. "|" ..
cfg.messages['help page label'] .. "]])";
z.error_ids[ error_id ] = true;
if inArray( error_id, { 'bare_url_missing_title', 'trans_missing_title' } )
and z.error_ids['citation_missing_title'] then
return '', false;
end
message = table.concat({ prefix, message, suffix });
if raw == true then
return message, error_state.hidden;
end
return errorcomment( message, error_state.hidden );
end
 
-- Formats a wiki style external link
function externallinkid(options)
local url_string = options.id;
if options.encode == true or options.encode == nil then
url_string = mw.uri.encode( url_string );
end
return mw.ustring.format( '[[%s|%s]]%s[%s%s%s %s]',
options.link, options.label, options.separator or "&nbsp;",
options.prefix, url_string, options.suffix or "",
mw.text.nowiki(options.id)
);
end
end


-- Formats a wiki style internal link
function internallinkid(options)
return mw.ustring.format( '[[%s|%s]]%s[[%s%s%s|%s]]',
options.link, options.label, options.separator or "&nbsp;",
options.prefix, options.id, options.suffix or "",
mw.text.nowiki(options.id)
);
end


-- Format an external link with error checking
--[[--------------------------< C H E C K _ U R L >------------------------------------------------------------
function externallink( URL, label, source )
local error_str = "";
if not is_set( label ) then
label = URL;
if is_set( source ) then
error_str = seterror( 'bare_url_missing_title', { wrap_style ('parameter', source) }, false, " " );
else
error( cfg.messages["bare_url_no_origin"] );
end
end
if not checkurl( URL ) then
error_str = seterror( 'bad_url', {}, false, " " ) .. error_str;
end
return table.concat({ "[", URL, " ", safeforurl( label ), "]", error_str });
end


--[[--------------------------< N O W R A P _ D A T E >--------------------------------------------------------
Determines whether a URL string appears to be valid.


When date is YYYY-MM-DD format wrap in nowrap span: <span ...>YYYY-MM-DD</span>.  When date is DD MMMM YYYY or is
First we test for space characters. If any are found, return false. Then split the URL into scheme and domain
MMMM DD, YYYY then wrap in nowrap span: <span ...>DD MMMM</span> YYYY or <span ...>MMMM DD,</span> YYYY
portions, or for protocol-relative (//example.com) URLs, just the domain.  Use is_url() to validate the two
portions of the URL.  If both are valid, or for protocol-relative if domain is valid, return true, else false.


DOES NOT yet support MMMM YYYY or any of the date ranges.
Because it is different from a standard URL, and because this module used external_link() to make external links
that work for standard and news: links, we validate newsgroup names here. The specification for a newsgroup name
is at https://tools.ietf.org/html/rfc5536#section-3.1.4


]]
]]


function nowrap_date (date)
local function check_url( url_str )
local cap='';
if nil == url_str:match ("^%S+$") then -- if there are any spaces in |url=value it can't be a proper URL
local cap2='';
return false;
end
local scheme, domain;


if date:match("^%d%d%d%d%-%d%d%-%d%d$") then
scheme, domain = split_url (url_str); -- get scheme or nil and domain or nil from URL;
date = substitute (cfg.presentation['nowrap1'], date);
elseif date:match("%a+%s*%d%d?,%s*%d%d%d%d") or date:match ("%d%d?%s*%a+%s*%d%d%d%d") then
if 'news:' == scheme then -- special case for newsgroups
cap, cap2 = string.match (date, "^(.*)%s+(%d%d%d%d)$");
return domain:match('^[%a%d%+%-_]+%.[%a%d%+%-_%.]*[%a%d%+%-_]$');
date = substitute (cfg.presentation['nowrap2'], {cap, cap2});
end
end
return date;
return is_url (scheme, domain); -- return true if value appears to be a valid URL
end
end


--[[--------------------------< A M A Z O N >------------------------------------------------------------------


Formats a link to Amazon.  Do simple error checking: asin must be mix of 10 numeric or uppercase alpha
--[=[-------------------------< I S _ P A R A M E T E R _ E X T _ W I K I L I N K >----------------------------
characters.  If a mix, first character must be uppercase alpha; if all numeric, asins must be 10-digit
isbn. If 10-digit isbn, add a maintenance category so a bot or awb script can replace |asin= with |isbn=.
Error message if not 10 characters, if not isbn10, if mixed and first character is a digit.


]]
Return true if a parameter value has a string that begins and ends with square brackets [ and ] and the first
non-space characters following the opening bracket appear to be a URL.  The test will also find external wikilinks
that 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 that
find 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]].
 
]=]


function amazon(id, domain)
local function is_parameter_ext_wikilink (value)
local err_cat = ""
local scheme, domain;


if not id:match("^[%d%u][%d%u][%d%u][%d%u][%d%u][%d%u][%d%u][%d%u][%d%u][%d%u]$") then
if value:match ('%f[%[]%[%a%S*:%S+.*%]') then -- if ext. wikilink with scheme and domain: [xxxx://yyyyy.zzz]
err_cat = ' ' .. seterror ('bad_asin'); -- asin is not a mix of 10 uppercase alpha and numeric characters
scheme, domain = split_url (value:match ('%f[%[]%[(%a%S*:%S+).*%]'));
elseif value:match ('%f[%[]%[//%S+.*%]') then -- if protocol-relative ext. wikilink: [//yyyyy.zzz]
scheme, domain = split_url (value:match ('%f[%[]%[(//%S+).*%]'));
elseif value:match ('%a%S*:%S+') then -- if bare URL with scheme; may have leading or trailing plain text
scheme, domain = split_url (value:match ('(%a%S*:%S+)'));
elseif value:match ('//%S+') then -- if protocol-relative bare URL: //yyyyy.zzz; may have leading or trailing plain text
scheme, domain = split_url (value:match ('(//%S+)')); -- what is left should be the domain
else
else
if id:match("^%d%d%d%d%d%d%d%d%d[%dX]$") then -- if 10-digit numeric (or 9 digits with terminal X)
return false; -- didn't find anything that is obviously a URL
if checkisbn( id ) then -- see if asin value is isbn10
table.insert( z.maintenance_cats, "CS1 maint: ASIN uses ISBN"); -- add to maint category
elseif not is_set (err_cat) then
err_cat =  ' ' .. seterror ('bad_asin'); -- asin is not isbn10
end
elseif not id:match("^%u[%d%u]+$") then
err_cat =  ' ' .. seterror ('bad_asin'); -- asin doesn't begin with uppercase alpha
end
end
end
if not is_set(domain) then
 
domain = "com";
return is_url (scheme, domain); -- return true if value appears to be a valid URL
elseif inArray (domain, {'jp', 'uk'}) then -- Japan, United Kingdom
domain = "co." .. domain;
elseif inArray (domain, {'au', 'br', 'mx'}) then -- Australia, Brazil, Mexico
domain = "com." .. domain;
end
local handler = cfg.id_handlers['ASIN'];
return externallinkid({link = handler.link,
label=handler.label , prefix="//www.amazon."..domain.."/dp/",id=id,
encode=handler.encode, separator = handler.separator}) .. err_cat;
end
end


--[[--------------------------< A R X I V >--------------------------------------------------------------------


See: http://arxiv.org/help/arxiv_identifier
--[[-------------------------< C H E C K _ F O R _ U R L >-----------------------------------------------------


format and error check arXiv identifier.  There are three valid forms of the identifier:
loop through a list of parameters and their values.  Look at the value and if it has an external link, emit an error message.
the first form, valid only between date codes 9108 and 0703 is:
arXiv:<archive>.<class>/<date code><number><version>
where:
<archive> is a string of alpha characters - may be hyphenated; no other punctuation
<class> is a string of alpha characters - may be hyphenated; no other punctuation
<date code> is four digits in the form YYMM where YY is the last two digits of the four-digit year and MM is the month number January = 01
first digit of YY for this form can only 9 and 0
<number> is a three-digit number
<version> is a 1 or more digit number preceded with a lowercase v; no spaces (undocumented)
the second form, valid from April 2007 through December 2014 is:
arXiv:<date code>.<number><version>
where:
<date code> is four digits in the form YYMM where YY is the last two digits of the four-digit year and MM is the month number January = 01
<number> is a four-digit number
<version> is a 1 or more digit number preceded with a lowercase v; no spaces


the third form, valid from January 2015 is:
arXiv:<date code>.<number><version>
where:
<date code> and <version> are as defined for 0704-1412
<number> is a five-digit number
]]
]]


function arxiv (id)
local function check_for_url (parameter_list, error_list)
local handler = cfg.id_handlers['ARXIV'];
for k, v in pairs (parameter_list) do -- for each parameter in the list
local year, month, version;
if is_parameter_ext_wikilink (v) then -- look at the value; if there is a URL add an error message
local err_cat = ""
table.insert (error_list, utilities.wrap_style ('parameter', k));
if id:match("^%a[%a%.%-]+/[90]%d[01]%d%d%d%d$") or id:match("^%a[%a%.%-]+/[90]%d[01]%d%d%d%dv%d+$") then -- test for the 9108-0703 format w/ & w/o version
year, month = id:match("^%a[%a%.%-]+/([90]%d)([01]%d)%d%d%d[v%d]*$");
year = tonumber(year);
month = tonumber(month);
if ((not (90 < year or 8 > year)) or (1 > month or 12 < month)) or -- if invalid year or invalid month
((91 == year and 7 > month) or (7 == year and 3 < month)) then -- if years ok, are starting and ending months ok?
err_cat = ' ' .. seterror( 'bad_arxiv' ); -- set error message
end
elseif id:match("^%d%d[01]%d%.%d%d%d%d$") or id:match("^%d%d[01]%d%.%d%d%d%dv%d+$") then -- test for the 0704-1412 w/ & w/o version
year, month = id:match("^(%d%d)([01]%d)%.%d%d%d%d[v%d]*$");
year = tonumber(year);
month = tonumber(month);
if ((7 > year) or (14 < year) or (1 > month or 12 < month)) or -- is year invalid or is month invalid? (doesn't test for future years)
((7 == year) and (4 > month)) then --or -- when year is 07, is month invalid (before April)?
err_cat = ' ' .. seterror( 'bad_arxiv' ); -- set error message
end
elseif id:match("^%d%d[01]%d%.%d%d%d%d%d$") or id:match("^%d%d[01]%d%.%d%d%d%d%dv%d+$") then -- test for the 1501- format w/ & w/o version
year, month = id:match("^(%d%d)([01]%d)%.%d%d%d%d%d[v%d]*$");
year = tonumber(year);
month = tonumber(month);
if ((15 > year) or (1 > month or 12 < month)) then -- is year invalid or is month invalid? (doesn't test for future years)
err_cat = ' ' .. seterror( 'bad_arxiv' ); -- set error message
end
end
else
err_cat = ' ' .. seterror( 'bad_arxiv' ); -- arXiv id doesn't match any format
end
end
end


return externallinkid({link = handler.link, label = handler.label,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end


--[[--------------------------< S A F E _ F O R _ U R L >------------------------------------------------------


--[[
Escape sequences for content that will be used for URL descriptions
lccn normalization (http://www.loc.gov/marc/lccn-namespace.html#normalization)
1. Remove all blanks.
2. If there is a forward slash (/) in the string, remove it, and remove all characters to the right of the forward slash.
3. If there is a hyphen in the string:
a. Remove it.
b. Inspect the substring following (to the right of) the (removed) hyphen. Then (and assuming that steps 1 and 2 have been carried out):
1. All these characters should be digits, and there should be six or less. (not done in this function)
2. If the length of the substring is less than 6, left-fill the substring with zeroes until the length is six.


Returns a normalized lccn for lccn() to validate.  There is no error checking (step 3.b.1) performed in this function.
]]
]]


function normalize_lccn (lccn)
local function safe_for_url( str )
lccn = lccn:gsub ("%s", ""); -- 1. strip whitespace
if str:match( "%[%[.-%]%]" ) ~= nil then
 
utilities.set_message ('err_wikilink_in_url', {});
if nil ~= string.find (lccn,'/') then
lccn = lccn:match ("(.-)/"); -- 2. remove forward slash and all character to the right of it
end
end
return str:gsub( '[%[%]\n]', {
['['] = '&#91;',
[']'] = '&#93;',
['\n'] = ' ' } );
end


local prefix
local suffix
prefix, suffix = lccn:match ("(.+)%-(.+)"); -- 3.a remove hyphen by splitting the string into prefix and suffix
if nil ~= suffix then -- if there was a hyphen
suffix=string.rep("0", 6-string.len (suffix)) .. suffix; -- 3.b.2 left fill the suffix with 0s if suffix length less than 6
lccn=prefix..suffix; -- reassemble the lccn
end
return lccn;
end


--[[
--[[--------------------------< E X T E R N A L _ L I N K >----------------------------------------------------
Format LCCN link and do simple error checking.  LCCN is a character string 8-12 characters long. The length of the LCCN dictates the character type of the first 1-3 characters; the
rightmost eight are always digits. http://info-uri.info/registry/OAIHandler?verb=GetRecord&metadataPrefix=reg&identifier=info:lccn/


length = 8 then all digits
Format an external link with error checking
length = 9 then lccn[1] is lower case alpha
length = 10 then lccn[1] and lccn[2] are both lower case alpha or both digits
length = 11 then lccn[1] is lower case alpha, lccn[2] and lccn[3] are both lower case alpha or both digits
length = 12 then lccn[1] and lccn[2] are both lower case alpha


]]
]]
function lccn(lccn)
local handler = cfg.id_handlers['LCCN'];
local err_cat =  ''; -- presume that LCCN is valid
local id = lccn; -- local copy of the lccn


id = normalize_lccn (id); -- get canonical form (no whitespace, hyphens, forward slashes)
local function external_link (URL, label, source, access)
local len = id:len(); -- get the length of the lccn
local err_msg = '';
local domain;
local path;
local base_url;


if 8 == len then
if not utilities.is_set (label) then
if id:match("[^%d]") then -- if LCCN has anything but digits (nil if only digits)
label = URL;
err_cat = ' ' .. seterror( 'bad_lccn' ); -- set an error message
if utilities.is_set (source) then
end
utilities.set_message ('err_bare_url_missing_title', {utilities.wrap_style ('parameter', source)});
elseif 9 == len then -- LCCN should be adddddddd
else
if nil == id:match("%l%d%d%d%d%d%d%d%d") then -- does it match our pattern?
error (cfg.messages["bare_url_no_origin"]);
err_cat = ' ' .. seterror( 'bad_lccn' ); -- set an error message
end
end
end
elseif 10 == len then -- LCCN should be aadddddddd or dddddddddd
if not check_url (URL) then
if id:match("[^%d]") then -- if LCCN has anything but digits (nil if only digits) ...
utilities.set_message ('err_bad_url', {utilities.wrap_style ('parameter', source)});
if nil == id:match("^%l%l%d%d%d%d%d%d%d%d") then -- ... see if it matches our pattern
end
err_cat = ' ' .. seterror( 'bad_lccn' ); -- no match, set an error message
end
domain, path = URL:match ('^([/%.%-%+:%a%d]+)([/%?#].*)$'); -- split the URL into scheme plus domain and path
end
if path then -- if there is a path portion
elseif 11 == len then -- LCCN should be aaadddddddd or adddddddddd
path = path:gsub ('[%[%]]', {['['] = '%5b', [']'] = '%5d'}); -- replace '[' and ']' with their percent-encoded values
if not (id:match("^%l%l%l%d%d%d%d%d%d%d%d") or id:match("^%l%d%d%d%d%d%d%d%d%d%d")) then -- see if it matches one of our patterns
URL = table.concat ({domain, path}); -- and reassemble
err_cat = ' ' .. seterror( 'bad_lccn' ); -- no match, set an error message
end
elseif 12 == len then -- LCCN should be aadddddddddd
if not id:match("^%l%l%d%d%d%d%d%d%d%d%d%d") then -- see if it matches our pattern
err_cat = ' ' .. seterror( 'bad_lccn' ); -- no match, set an error message
end
else
err_cat = ' ' .. seterror( 'bad_lccn' ); -- wrong length, set an error message
end
end


if not is_set (err_cat) and nil ~= lccn:find ('%s') then
base_url = table.concat ({ "[", URL, " ", safe_for_url (label), "]" }); -- assemble a wiki-markup URL
err_cat = ' ' .. seterror( 'bad_lccn' ); -- lccn contains a space, set an error message
 
if utilities.is_set (access) then -- access level (subscription, registration, limited)
base_url = utilities.substitute (cfg.presentation['ext-link-access-signal'], {cfg.presentation[access].class, cfg.presentation[access].title, base_url}); -- add the appropriate icon
end
end


return externallinkid({link = handler.link, label = handler.label,
return base_url;
prefix=handler.prefix,id=lccn,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
end


--[[
 
Format PMID and do simple error checking.  PMIDs are sequential numbers beginning at 1 and counting up.  This code checks the PMID to see that it
--[[--------------------------< D E P R E C A T E D _ P A R A M E T E R >--------------------------------------
contains only digits and is less than test_limit; the value in local variable test_limit will need to be updated periodically as more PMIDs are issued.
 
Categorize and emit an error message when the citation contains one or more deprecated parameters.  The function includes the
offending parameter name to the error message.  Only one error message is emitted regardless of the number of deprecated
parameters in the citation.
 
added_deprecated_cat is a Boolean declared in page scope variables above
 
]]
]]
function pmid(id)
local test_limit = 30000000; -- update this value as PMIDs approach
local handler = cfg.id_handlers['PMID'];
local err_cat =  ''; -- presume that PMID is valid
if id:match("[^%d]") then -- if PMID has anything but digits
err_cat = ' ' .. seterror( 'bad_pmid' ); -- set an error message
else -- PMID is only digits
local id_num = tonumber(id); -- convert id to a number for range testing
if 1 > id_num or test_limit < id_num then -- if PMID is outside test limit boundaries
err_cat = ' ' .. seterror( 'bad_pmid' ); -- set an error message
end
end
return externallinkid({link = handler.link, label = handler.label,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end


--[[
local function deprecated_parameter(name)
Determines if a PMC identifier's online version is embargoed. Compares the date in |embargo= against today's date.  If embargo date is
if not added_deprecated_cat then
in the future, returns true; otherwise, returns false because the embargo has expired or |embargo= not set in this cite.
added_deprecated_cat = true; -- note that we've added this category
]]
utilities.set_message ('err_deprecated_params', {name}); -- add error message
function is_embargoed(embargo)
if is_set(embargo) then
local lang = mw.getContentLanguage();
local good1, embargo_date, good2, todays_date;
good1, embargo_date = pcall( lang.formatDate, lang, 'U', embargo );
good2, todays_date = pcall( lang.formatDate, lang, 'U' );
if good1 and good2 and tonumber( embargo_date ) >= tonumber( todays_date ) then --is embargo date is in the future?
return true; -- still embargoed
end
end
end
return false; -- embargo expired or |embargo= not set
end
end


--[[
Format a PMC, do simple error checking, and check for embargoed articles.


The embargo parameter takes a date for a value. If the embargo date is in the future
--[=[-------------------------< K E R N _ Q U O T E S >--------------------------------------------------------
the PMC identifier will not be linked to the article.  If the embargo specifies a date in the past, or if it is empty or omitted, then
the PMC identifier is linked to the article through the link at cfg.id_handlers['PMC'].prefix.


PMCs are sequential numbers beginning at 1 and counting up.  This code checks the PMC to see that it contains only digits and is less
Apply kerning to open the space between the quote mark provided by the module and a leading or trailing quote
than test_limit; the value in local variable test_limit will need to be updated periodically as more PMCs are issued.
mark contained in a |title= or |chapter= parameter's value.
]]
 
function pmc(id, embargo)
This function will positive kern either single or double quotes:
local test_limit = 5000000; -- update this value as PMCs approach
"'Unkerned title with leading and trailing single quote marks'"
local handler = cfg.id_handlers['PMC'];
" 'Kerned title with leading and trailing single quote marks' " (in real life the kerning isn't as wide as this example)
local err_cat =  ''; -- presume that PMC is valid
Double single quotes (italic or bold wiki-markup) are not kerned.
 
local text;
Replaces Unicode quote marks in plain text or in the label portion of a [[L|D]] style wikilink with typewriter
quote marks regardless of the need for kerning.  Unicode quote marks are not replaced in simple [[D]] wikilinks.


if id:match("[^%d]") then -- if PMC has anything but digits
Call this function for chapter titles, for website titles, etc.; not for book titles.
err_cat = ' ' .. seterror( 'bad_pmc' ); -- set an error message
else -- PMC is only digits
local id_num = tonumber(id); -- convert id to a number for range testing
if 1 > id_num or test_limit < id_num then -- if PMC is outside test limit boundaries
err_cat = ' ' .. seterror( 'bad_pmc' ); -- set an error message
end
end
if is_embargoed(embargo) then
text="[[" .. handler.link .. "|" .. handler.label .. "]]:" .. handler.separator .. id .. err_cat; --still embargoed so no external link
else
text = externallinkid({link = handler.link, label = handler.label, --no embargo date, ok to link to article
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode}) .. err_cat;
end
return text;
end


-- Formats a DOI and checks for DOI errors.
]=]


-- DOI names contain two parts: prefix and suffix separated by a forward slash.
local function kern_quotes (str)
--  Prefix: directory indicator '10.' followed by a registrant code
local cap = '';
--  Suffix: character string of any length chosen by the registrant
local wl_type, label, link;


-- This function checks a DOI name for: prefix/suffix. If the doi name contains spaces or endashes,
wl_type, label, link = utilities.is_wikilink (str); -- wl_type is: 0, no wl (text in label variable); 1, [[D]]; 2, [[L|D]]
-- or, if it ends with a period or a comma, this function will emit a bad_doi error message.
if 1 == wl_type then -- [[D]] simple wikilink with or without quote marks
if mw.ustring.match (str, '%[%[[\"“”\'‘’].+[\"“”\'‘’]%]%]') then -- leading and trailing quote marks
str = utilities.substitute (cfg.presentation['kern-left'], str);
str = utilities.substitute (cfg.presentation['kern-right'], str);
elseif mw.ustring.match (str, '%[%[[\"“”\'‘’].+%]%]') then -- leading quote marks
str = utilities.substitute (cfg.presentation['kern-left'], str);
elseif mw.ustring.match (str, '%[%[.+[\"“”\'‘’]%]%]') then -- trailing quote marks
str = utilities.substitute (cfg.presentation['kern-right'], str);
end


-- DOI names are case-insensitive and can incorporate any printable Unicode characters so the test for spaces, endash,
else -- plain text or [[L|D]]; text in label variable
-- and terminal punctuation may not be technically correct but it appears, that in practice these characters are rarely if ever used in doi names.
label = 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)


function doi(id, inactive)
cap = mw.ustring.match (label, "^([\"\'][^\'].+)"); -- match leading double or single quote but not doubled single quotes (italic markup)
local cat = ""
if utilities.is_set (cap) then
local handler = cfg.id_handlers['DOI'];
label = utilities.substitute (cfg.presentation['kern-left'], cap);
end
local text;
cap = mw.ustring.match (label, "^(.+[^\'][\"\'])$") -- match trailing double or single quote but not doubled single quotes (italic markup)
if is_set(inactive) then
if utilities.is_set (cap) then
local inactive_year = inactive:match("%d%d%d%d") or ''; -- try to get the year portion from the inactive date
label = utilities.substitute (cfg.presentation['kern-right'], cap);
text = "[[" .. handler.link .. "|" .. handler.label .. "]]:" .. id;
end
if is_set(inactive_year) then
table.insert( z.error_categories, "صفحات با نشانگرهای غیرفعال دیجیتالی شیء از " .. inactive_year );
if 2 == wl_type then
str = utilities.make_wikilink (link, label); -- reassemble the wikilink
else
else
table.insert( z.error_categories, "صفحات با نشانگرهای غیرفعال دیجیتالی شیء" ); -- when inactive doesn't contain a recognizable year
str = label;
end
end
inactive = " (" .. cfg.messages['inactive'] .. " " .. inactive .. ")"
else
text = externallinkid({link = handler.link, label = handler.label,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
inactive = ""
end
end
 
return str;
if nil == id:match("^10%.[^%s–]-/[^%s–]-[^%.,]$") then -- doi must begin with '10.', must contain a fwd slash, must not contain spaces or endashes, and must not end with period or comma
cat = ' ' .. seterror( 'bad_doi' );
end
return text .. inactive .. cat
end
end


-- Formats an OpenLibrary link, and checks for associated errors.
function openlibrary(id)
local code = id:match("^%d+([AMW])$"); -- only digits followed by 'A', 'M', or 'W'
local handler = cfg.id_handlers['OL'];


if ( code == "A" ) then
--[[--------------------------< F O R M A T _ S C R I P T _ V A L U E >----------------------------------------
return externallinkid({link=handler.link, label=handler.label,
prefix="http://openlibrary.org/authors/OL",id=id, separator=handler.separator,
encode = handler.encode})
elseif ( code == "M" ) then
return externallinkid({link=handler.link, label=handler.label,
prefix="http://openlibrary.org/books/OL",id=id, separator=handler.separator,
encode = handler.encode})
elseif ( code == "W" ) then
return externallinkid({link=handler.link, label=handler.label,
prefix= "http://openlibrary.org/works/OL",id=id, separator=handler.separator,
encode = handler.encode})
else
return externallinkid({link=handler.link, label=handler.label,
prefix= "http://openlibrary.org/OL",id=id, separator=handler.separator,
encode = handler.encode}) ..
' ' .. seterror( 'bad_ol' );
end
end


--[[
|script-title= holds title parameters that are not written in Latin-based scripts: Chinese, Japanese, Arabic, Hebrew, etc. These scripts should
Validate and format an issn.  This code fixes the case where an editor has included an ISSN in the citation but has separated the two groups of four
not be italicized and may be written right-to-left.  The value supplied by |script-title= is concatenated onto Title after Title has been wrapped
digits with a space. When that condition occurred, the resulting link looked like this:
in italic markup.


|issn=0819 4327 gives: [http://www.worldcat.org/issn/0819 4327 0819 4327]  -- can't have spaces in an external link
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.
This code now prevents that by inserting a hyphen at the issn midpoint. It also validates the issn for length and makes sure that the checkdigit agrees
with the calculated value.  Incorrect length (8 digits), characters other than 0-9 and X, or checkdigit / calculated value mismatch will all cause a check issn
error message.  The issn is always displayed with a hyphen, even if the issn was given as a single group of 8 digits.
]]
function issn(id)
local issn_copy = id; -- save a copy of unadulterated issn; use this version for display if issn does not validate
local handler = cfg.id_handlers['ISSN'];
local text;
local valid_issn = true;


id=id:gsub( "[%s-–]", "" ); -- strip spaces, hyphens, and endashes from the issn
|script-title= provides a unique feature.  The value in |script-title= may be prefixed with a two-character ISO 639-1 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:*** ***


if 8 ~= id:len() or nil == id:match( "^%d*X?$" ) then -- validate the issn: 8 digits long, containing only 0-9 or X in the last position
The prefix is checked for validity.  If it is a valid ISO 639-1 language code, the lang attribute (lang="ja") is added to the <bdi> tag so that browsers can
valid_issn=false; -- wrong length or improper character
know the language the tag contains.  This may help the browser render the script more correctly.  If the prefix is invalid, the lang attribute
else
is not added.  At this time there is no error message for this condition.
valid_issn=is_valid_isxn(id, 8); -- validate issn
end


if true == valid_issn then
Supports |script-title=, |script-chapter=, |script-<periodical>=
id = string.sub( id, 1, 4 ) .. "-" .. string.sub( id, 5 ); -- if valid, display correctly formatted version
else
id = issn_copy; -- if not valid, use the show the invalid issn with error message
end
text = externallinkid({link = handler.link, label = handler.label,
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
if false == valid_issn then
text = text .. ' ' .. seterror( 'bad_issn' ) -- add an error message if the issn is invalid
end
return text
end
 
--[[--------------------------< M E S S A G E _ I D >----------------------------------------------------------
 
Validate and format a usenet message id.  Simple error checking, looks for 'id-left@id-right' not enclosed in
'<' and/or '>' angle brackets.


]]
]]


function message_id (id)
local function format_script_value (script_value, script_param)
local handler = cfg.id_handlers['USENETID'];
local lang=''; -- initialize to empty string
local name;
if script_value:match('^%l%l%l?%s*:') then -- if first 3 or 4 non-space characters are script language prefix
lang = script_value:match('^(%l%l%l?)%s*:%s*%S.*'); -- get the language prefix or nil if there is no script
if not utilities.is_set (lang) then
utilities.set_message ('err_script_parameter', {script_param, cfg.err_msg_supl['missing title part']}); -- prefix without 'title'; add error message
return ''; -- script_value was just the prefix so return empty string
end
-- if we get this far we have prefix and script
name = cfg.lang_code_remap[lang] or mw.language.fetchLanguageName( lang, cfg.this_wiki_code ); -- get language name so that we can use it to categorize
if utilities.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 utilities.in_array (lang, cfg.script_lang_codes) then
utilities.add_prop_cat ('script', {name, lang})
else
utilities.set_message ('err_script_parameter', {script_param, cfg.err_msg_supl['unknown language code']}); -- unknown script-language; add error message
end
lang = ' lang="' .. lang .. '" '; -- convert prefix into a lang attribute
else
utilities.set_message ('err_script_parameter', {script_param, cfg.err_msg_supl['invalid language code']}); -- invalid language code; add error message
lang = ''; -- invalid so set lang to empty string
end
else
utilities.set_message ('err_script_parameter', {script_param, cfg.err_msg_supl['missing prefix']}); -- no language code prefix; add error message
end
script_value = utilities.substitute (cfg.presentation['bdi'], {lang, script_value}); -- isolate in case script is RTL


text = externallinkid({link = handler.link, label = handler.label,
return script_value;
prefix=handler.prefix,id=id,separator=handler.separator, encode=handler.encode})
if not id:match('^.+@.+$') or not id:match('^[^<].*[^>]$')then -- doesn't have '@' or has one or first or last character is '< or '>'
text = text .. ' ' .. seterror( 'bad_message_id' ) -- add an error message if the message id is invalid
end
return text
end
end




--[[--------------------------< S C R I P T _ C O N C A T E N A T E >------------------------------------------


--[[--------------------------< S E T _ T I T L E T Y P E >----------------------------------------------------
Initially for |title= and |script-title=, this function concatenates those two parameter values after the script
value has been wrapped in <bdi> tags.


This function sets default title types (equivalent to the citation including |type=<default value>) for those citations that have defaults.
]]
Also handles the special case where it is desirable to omit the title type from the rendered citation (|type=none).


]]
local function script_concatenate (title, script, script_param)
function set_titletype(cite_class, title_type)
if utilities.is_set (script) then
if is_set(title_type) then
script = format_script_value (script, script_param); -- <bdi> tags, lang attribute, categorization, etc.; returns empty string on error
if "none" == title_type then
if utilities.is_set (script) then
title_type = ""; -- if |type=none then type parameter not displayed
title = title .. ' ' .. script; -- concatenate title and script title
end
end
return title_type; -- if |type= has been set to any other value use that value
end
end
return title;
end


if "AV-media-notes" == cite_class or "DVD-notes" == cite_class then -- if this citation is cite AV media notes or cite DVD notes
return "یادداشت‌های رسانه‌ای"; -- display AV media notes / DVD media notes annotation


elseif "mailinglist" == cite_class then -- if this citation is cite mailing list
--[[--------------------------< W R A P _ M S G >--------------------------------------------------------------
return "Mailing list"; -- display mailing list annotation


elseif "podcast" == cite_class then -- if this citation is cite podcast
Applies additional message text to various parameter values. Supplied string is wrapped using a message_list
return "پادکست"; -- display podcast annotation
configuration taking one argument.  Supports lower case text for {{citation}} templates.  Additional text taken
from citation_config.messages - the reason this function is similar to but separate from wrap_style().


elseif "pressrelease" == cite_class then -- if this citation is cite press release
]]
return "انتشار مطبوعاتی"; -- display press release annotation


elseif "report" == cite_class then -- if this citation is cite report
local function wrap_msg (key, str, lower)
return "Report"; -- display report annotation
if not utilities.is_set ( str ) then
return "";
elseif "techreport" == cite_class then -- if this citation is cite techreport
return "گزارش فنی"; -- display techreport annotation
elseif "thesis" == cite_class then -- if this citation is cite thesis (degree option handled after this function returns)
return "پایان‌نامه"; -- display simple thesis annotation (without |degree= modification)
end
end
if true == lower then
local msg;
msg = cfg.messages[key]:lower(); -- set the message to lower case before
return utilities.substitute ( msg, str ); -- including template text
else
return utilities.substitute ( cfg.messages[key], str );
end
end
end


--[[
Determines whether a URL string is valid


At present the only check is whether the string appears to
--[[----------------< W I K I S O U R C E _ U R L _ M A K E >-------------------
be prefixed with a URI scheme.  It is not determined whether
the URI scheme is valid or whether the URL is otherwise well
formed.
]]
function checkurl( url_str )
-- Protocol-relative or URL scheme
return url_str:sub(1,2) == "//" or url_str:match( "^[^/]*:" ) ~= nil;
end


-- Removes irrelevant text and dashes from ISBN number
Makes a Wikisource URL from Wikisource interwiki-link.  Returns the URL and appropriate
-- Similar to that used for Special:BookSources
label; nil else.
function cleanisbn( isbn_str )
return isbn_str:gsub( "[^-0-9X]", "" );
end


--[[--------------------------< E S C A P E _ L U A _ M A G I C _ C H A R S >----------------------------------
str is the value assigned to |chapter= (or aliases) or |title= or |title-link=


Returns a string where all of lua's magic characters have been escaped.  This is important because functions like
string.gsub() treat their pattern and replace strings as patterns, not literal strings.
]]
]]
function escape_lua_magic_chars (argument)
argument = argument:gsub("%%", "%%%%"); -- replace % with %%
argument = argument:gsub("([%^%$%(%)%.%[%]%*%+%-%?])", "%%%1"); -- replace all other lua magic pattern characters
return argument;
end


--[[--------------------------< S T R I P _ A P O S T R O P H E _ M A R K U P >--------------------------------
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/'});


Strip wiki italic and bold markup from argument so that it doesn't contaminate COinS metadata.
wl_type, D, L = utilities.is_wikilink (str); -- wl_type is 0 (not a wikilink), 1 (simple wikilink), 2 (complex wikilink)
This function strips common patterns of apostrophe markup. We presume that editors who have taken the time to
markup a title have, as a result, provided valid markup. When they don't, some single apostrophes are left behind.


]]
if 0 == wl_type then -- not a wikilink; might be from |title-link=
function strip_apostrophe_markup (argument)
str = D:match ('^[Ww]ikisource:(.+)') or D:match ('^[Ss]:(.+)'); -- article title from interwiki link with long-form or short-form namespace
if not is_set (argument) then return argument; end
if utilities.is_set (str) then
ws_url = table.concat ({ -- build a Wikisource URL
wikisource_prefix, -- prefix
str, -- article title
});
ws_label = str; -- label for the URL
end
elseif 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 namespace
if utilities.is_set (str) then
ws_url = table.concat ({ -- build a Wikisource URL
wikisource_prefix, -- prefix
str, -- article title
});
ws_label = str; -- label for the URL
end
elseif 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 namespace
if utilities.is_set (str) then
ws_label = D; -- get ws article name from display portion of interwiki link
ws_url = table.concat ({ -- build a Wikisource URL
wikisource_prefix, -- prefix
str, -- article title without namespace from link portion of wikilink
});
end
end


while true do
if ws_url then
if argument:match ("%'%'%'%'%'") then -- bold italic (5)
ws_url = mw.uri.encode (ws_url, 'WIKI'); -- make a usable URL
argument=argument:gsub("%'%'%'%'%'", ""); -- remove all instances of it
ws_url = ws_url:gsub ('%%23', '#'); -- undo percent-encoding of fragment marker
elseif argument:match ("%'%'%'%'") then -- italic start and end without content (4)
argument=argument:gsub("%'%'%'%'", "");
elseif argument:match ("%'%'%'") then -- bold (3)
argument=argument:gsub("%'%'%'", "");
elseif argument:match ("%'%'") then -- italic (2)
argument=argument:gsub("%'%'", "");
else
break;
end
end
end
return argument; -- done
 
return ws_url, ws_label, L or D; -- return proper URL or nil and a label or nil
end
end


--[[--------------------------< M A K E _ C O I N S _ T I T L E >----------------------------------------------


Makes a title for COinS from Title and / or ScriptTitle (or any other name-script pairs)
--[[----------------< 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.


Apostrophe markup (bold, italics) is stripped from each value so that the COinS metadata isn't correupted with strings
of %27%27...
]]
]]


function make_coins_title (title, script)
local function format_periodical (script_periodical, script_periodical_source, periodical, trans_periodical)
if is_set (title) then
 
title = strip_apostrophe_markup (title); -- strip any apostrophe markup
if not utilities.is_set (periodical) then
periodical = ''; -- to be safe for concatenation
else
else
title=''; -- if not set, make sure title is an empty string
periodical = utilities.wrap_style ('italic-title', periodical); -- style
end
end
if is_set (script) then
 
script = script:gsub ('^%l%l%s*:%s*', ''); -- remove language prefix if present (script value may now be empty string)
periodical = script_concatenate (periodical, script_periodical, script_periodical_source); -- <bdi> tags, lang attribute, categorization, etc.; must be done after title is wrapped
script = strip_apostrophe_markup (script); -- strip any apostrophe markup
 
else
if utilities.is_set (trans_periodical) then
script=''; -- if not set, make sure script is an empty string
trans_periodical = utilities.wrap_style ('trans-italic-title', trans_periodical);
if utilities.is_set (periodical) then
periodical = periodical .. ' ' .. trans_periodical;
else -- here when trans-periodical without periodical or script-periodical
periodical = trans_periodical;
utilities.set_message ('err_trans_missing_title', {'periodical'});
end
end
end
if is_set (title) and is_set (script) then
 
script = ' ' .. script; -- add a space before we concatenate
return periodical;
end
return title .. script; -- return the concatenation
end
end


--[[--------------------------< G E T _ C O I N S _ P A G E S >------------------------------------------------


Extract page numbers from external wikilinks in any of the |page=, |pages=, or |at= parameters for use in COinS.
--[[------------------< 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).


]]
]]
function get_coins_pages (pages)
 
local pattern;
local function format_chapter_title (script_chapter, script_chapter_source, chapter, chapter_source, trans_chapter, trans_chapter_source, chapter_url, chapter_url_source, no_quotes, access)
if not is_set (pages) then return pages; end -- if no page numbers then we're done
local ws_url, ws_label, L = wikisource_url_make (chapter); -- make a wikisource URL and label from a wikisource interwiki link
if ws_url then
while true do
ws_label = ws_label:gsub ('_', ' '); -- replace underscore separators with space characters
pattern = pages:match("%[(%w*:?//[^ ]+%s+)[%w%d].*%]"); -- pattern is the opening bracket, the url and following space(s): "[url "
chapter = ws_label;
if nil == pattern then break; end -- no more urls
pattern = escape_lua_magic_chars (pattern); -- pattern is not a literal string; escape lua's magic pattern characters
pages = pages:gsub(pattern, ""); -- remove as many instances of pattern as possible
end
end
pages = pages:gsub("[%[%]]", ""); -- remove the brackets
pages = pages:gsub("–", "-" ); -- replace endashes with hyphens
pages = pages:gsub("&%w+;", "-" ); -- and replace html entities (&ndash; etc.) with hyphens; do we need to replace numerical entities like &#32; and the like?
return pages;
end


--[[
if not utilities.is_set (chapter) then
ISBN-10 and ISSN validator code calculates checksum across all isbn/issn digits including the check digit. ISBN-13 is checked in checkisbn().
chapter = ''; -- to be safe for concatenation
If the number is valid the result will be 0. Before calling this function, issbn/issn must be checked for length and stripped of dashes,
else
spaces and other non-isxn characters.
if false == no_quotes then
]]
chapter = kern_quotes (chapter); -- if necessary, separate chapter title's leading and trailing quote marks from module provided quote marks
function is_valid_isxn (isxn_str, len)
chapter = utilities.wrap_style ('quoted-title', chapter);
local temp = 0;
isxn_str = { isxn_str:byte(1, len) }; -- make a table of bytes
len = len+1; -- adjust to be a loop counter
for i, v in ipairs( isxn_str ) do -- loop through all of the bytes and calculate the checksum
if v == string.byte( "X" ) then -- if checkdigit is X
temp = temp + 10*( len - i ); -- it represents 10 decimal
else
temp = temp + tonumber( string.char(v) )*(len-i);
end
end
end
end
return temp % 11 == 0; -- returns true if calculation result is zero
end


-- Determines whether an ISBN string is valid
chapter = script_concatenate (chapter, script_chapter, script_chapter_source); -- <bdi> tags, lang attribute, categorization, etc.; must be done after title is wrapped
function checkisbn( isbn_str )
 
if nil ~= isbn_str:match("[^%s-0-9X]") then return false; end -- fail if isbn_str contains anything but digits, hyphens, or the uppercase X
if utilities.is_set (chapter_url) then
isbn_str = isbn_str:gsub( "-", "" ):gsub( " ", "" ); -- remove hyphens and spaces
chapter = external_link (chapter_url, chapter, chapter_url_source, access); -- adds bare_url_missing_title error if appropriate
local len = isbn_str:len();
elseif ws_url then
chapter = 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?
if len ~= 10 and len ~= 13 then
chapter = utilities.substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, chapter});
return false;
end
end


if len == 10 then
if utilities.is_set (trans_chapter) then
if isbn_str:match( "^%d*X?$" ) == nil then return false; end
trans_chapter = utilities.wrap_style ('trans-quoted-title', trans_chapter);
return is_valid_isxn(isbn_str, 10);
if utilities.is_set (chapter) then
else
chapter = chapter .. ' ' .. trans_chapter;
local temp = 0;
else -- here when trans_chapter without chapter or script-chapter
if isbn_str:match( "^97[89]%d*$" ) == nil then return false; end -- isbn13 begins with 978 or 979
chapter = trans_chapter;
isbn_str = { isbn_str:byte(1, len) };
chapter_source = trans_chapter_source:match ('trans%-?(.+)'); -- when no chapter, get matching name from trans-<param>
for i, v in ipairs( isbn_str ) do
utilities.set_message ('err_trans_missing_title', {chapter_source});
temp = temp + (3 - 2*(i % 2)) * tonumber( string.char(v) );
end
end
return temp % 10 == 0;
end
end
return chapter;
end
end


-- Gets the display text for a wikilink like [[A|B]] or [[B]] gives B
function removewikilink( str )
return (str:gsub( "%[%[([^%[%]]*)%]%]", function(l)
return l:gsub( "^[^|]*|(.*)$", "%1" ):gsub("^%s*(.-)%s*$", "%1");
end));
end


-- Escape sequences for content that will be used for URL descriptions
--[[----------------< H A S _ I N V I S I B L E _ C H A R S >-------------------
function safeforurl( str )
 
if str:match( "%[%[.-%]%]" ) ~= nil then
This function searches a parameter's value for non-printable or invisible characters.
table.insert( z.message_tail, { seterror( 'wikilink_in_url', {}, true ) } );
The search stops at the first match.
end
 
This function will detect the visible replacement character when it is part of the Wikisource.
return str:gsub( '[%[%]\n]', {
 
['['] = '&#91;',
Detects but ignores nowiki and math stripmarkers. Also detects other named stripmarkers
[']'] = '&#93;',
(gallery, math, pre, ref) and identifies them with a slightly different error message.
['\n'] = ' ' } );
See also coins_cleanup().
end
 
Output of this function is an error message that identifies the character or the
Unicode group, or the stripmarker that was detected along with its position (or,
for multi-byte characters, the position of its first byte) in the parameter value.
 
]]
 
local function has_invisible_chars (param, v)
local position = ''; -- position of invisible char or starting position of stripmarker
local capture; -- used by stripmarker detection to hold name of the stripmarker
local stripmarker; -- boolean set true when a stripmarker is found


-- Converts a hyphen to a dash
capture = string.match (v, '[%w%p ]*'); -- test for values that are simple ASCII text and bypass other tests if true
function hyphentodash( str )
if capture == v then -- if same there are no Unicode characters
if not is_set(str) or str:match( "[%[%]{}<>]" ) ~= nil then
return;
return str;
end
end
return str:gsub( '-', '–' );
end


-- Protects a string that will be wrapped in wiki italic markup '' ... ''
for _, invisible_char in ipairs (cfg.invisible_chars) do
function safeforitalics( str )
local char_name = invisible_char[1]; -- the character or group name
--[[ Note: We cannot use <i> for italics, as the expected behavior for
local pattern = invisible_char[2]; -- the pattern used to find it
italics specified by ''...'' in the title is that they will be inverted
position, _, capture = mw.ustring.find (v, pattern); -- see if the parameter value contains characters that match the pattern
(i.e. unitalicized) in the resulting references. In addition, <i> and ''
tend to interact poorly under Mediawiki's HTML tidy. ]]
if position and (cfg.invisible_defs.zwj == capture) then -- if we found a zero-width joiner character
if mw.ustring.find (v, cfg.indic_script) then -- it's ok if one of the Indic scripts
if not is_set(str) then
position = nil; -- unset position
return str;
elseif cfg.emoji[mw.ustring.codepoint (v, position+1)] then -- is zwj followed by a character listed in emoji{}?
else
position = nil; -- unset position
if str:sub(1,1) == "'" then str = "<span />" .. str; end
end
if str:sub(-1,-1) == "'" then str = str .. "<span />"; end
end
-- Remove newlines as they break italics.
if position then
return str:gsub( '\n', ' ' );
if 'nowiki' == capture or 'math' == capture or -- nowiki and math stripmarkers (not an error condition)
('templatestyles' == capture and utilities.in_array (param, {'id', 'quote'})) then -- templatestyles stripmarker allowed in these parameters
stripmarker = true; -- set a flag
elseif true == stripmarker and cfg.invisible_defs.del == capture then -- because stripmakers begin and end with the delete char, assume that we've found one end of a stripmarker
position = nil; -- unset
else
local err_msg;
if capture and not (cfg.invisible_defs.del == capture or cfg.invisible_defs.zwj == capture) then
err_msg = capture .. ' ' .. char_name;
else
err_msg = char_name .. ' ' .. 'character';
end
 
utilities.set_message ('err_invisible_char', {err_msg, utilities.wrap_style ('parameter', param), position}); -- add error message
return; -- and done with this parameter
end
end
end
end
end
end


--[[--------------------------< S A F E J O I N >--------------------------------------------------------------


Joins a sequence of strings together while checking for duplicate separation characters.
--[[-------------------< 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 that multiple names can be transparently aliased to
single internal variable.


]]
]]
function safejoin( tbl, duplicate_char )
 
--[[
local function argument_wrapper ( args )
Note: we use string functions here, rather than ustring functions.
local origin = {};
This has considerably faster performance and should work correctly as
return setmetatable({
long as the duplicate_char is strict ASCII.  The strings
ORIGIN = function ( self, k )
in tbl may be ASCII or UTF8.
local dummy = self[k]; -- force the variable to be loaded.
]]
return origin[k];
end
local str = ''; -- the output string
},
local comp = ''; -- what does 'comp' mean?
{
local end_chr = '';
__index = function ( tbl, k )
local trim;
if origin[k] ~= nil then
for _, value in ipairs( tbl ) do
return nil;
if value == nil then value = ''; end
if str == '' then -- if output string is empty
str = value; -- assign value to it (first time through the loop)
elseif value ~= '' then
if 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)
else
comp = value;
end
end
-- typically duplicate_char is sepc
if comp:sub(1,1) == duplicate_char then -- is first charactier same as duplicate_char? why test first character?
local args, list, v = args, cfg.aliases[k];
--  Because individual string segments often (always?) begin with terminal punct for th
--  preceding segment: 'First element' .. 'sepc next element' .. etc?
if type( list ) == 'table' then
trim = false;
v, origin[k] = utilities.select_one ( args, list, 'err_redundant_parameters' );
end_chr = str:sub(-1,-1); -- get the last character of the output string
if origin[k] == nil then
-- str = str .. "<HERE(enchr=" .. end_chr.. ")" -- debug stuff?
origin[k] = ''; -- Empty string, not nil
if end_chr == duplicate_char then -- if same as separator
str = str:sub(1,-2); -- remove it
elseif end_chr == "'" then -- if it might be wikimarkup
if str:sub(-3,-1) == duplicate_char .. "''" then -- if last three chars of str are sepc''
str = str:sub(1, -4) .. "''"; -- remove them and add back ''
elseif str:sub(-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 str:sub(-4,-1) == duplicate_char .. "]''" then -- if last four chars of str are sepc]''
trim = true; -- same question
end
elseif end_chr == "]" then -- if it might be wikimarkup
if str:sub(-3,-1) == duplicate_char .. "]]" then -- if last three chars of str are sepc]] wikilink
trim = true;
elseif str:sub(-2,-1) == duplicate_char .. "]" then -- if last two chars of str are sepc] external link
trim = true;
elseif str:sub(-4,-1) == duplicate_char .. "'']" then -- normal case when |url=something & |title=Title.
trim = true;
end
elseif end_chr == " " then -- if last char of output string is a space
if str:sub(-2,-1) == duplicate_char .. " " then -- if last two chars of str are <sepc><space>
str = str:sub(1,-3); -- remove them both
end
end
 
if trim then
if value ~= comp then -- value does not equal comp when value contains html markup
local dup2 = duplicate_char;
if dup2:match( "%A" ) then dup2 = "%" .. dup2; end -- if duplicate_char not a letter then escape it
value = value:gsub( "(%b<>)" .. dup2, "%1", 1 ) -- remove duplicate_char if it follows html markup
else
value = value:sub( 2, -1 ); -- remove duplicate_char when it is first character
end
end
end
elseif list ~= nil then
v, 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 = '';
origin[k] = '';
end
end
str = str .. value; --add it to the output string
end
tbl = rawset( tbl, k, v );
end
return v;
return str;
end,
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 is MMMM DD, YYYY then wrap in nowrap span:
<span ...>DD MMMM</span> YYYY or <span ...>MMMM DD,</span> YYYY


-- Attempts to convert names to initials.
DOES NOT yet support MMMM YYYY or any of the date ranges.
function reducetoinitials(first)
local initials = {}
local i = 0; -- counter for number of initials
for word in string.gmatch(first, "%S+") do
table.insert(initials, string.sub(word,1,1)) -- Vancouver format does not include full stops.
i = i + 1; -- bump the counter
if 2 <= i then break; end -- only two initials allowed in Vancouver system; if 2, quit
end
return table.concat(initials) -- Vancouver format does not include spaces.
end


-- Formats a list of people (e.g. authors / editors)
]]
function listpeople(control, people)
local sep;
local namesep;
local format = control.format
local maximum = control.maximum
local lastauthoramp = control.lastauthoramp;
local text = {}
local etal = false;
if 'vanc' == format then -- Vancouver-like author/editor name styling?
sep = ','; -- name-list separator between authors is a comma
namesep = ' '; -- last/first separator is a space
else
sep = ';' -- name-list separator between authors is a semicolon
namesep = ', ' -- last/first separator is <comma><space>
end
if sep:sub(-1,-1) ~= " " then sep = sep .. " " end
if maximum ~= nil and maximum < 1 then return "", 0; end
for i,person in ipairs(people) do
if is_set(person.last) then
local mask = person.mask
local one
local sep_one = sep;
if maximum ~= nil and i > maximum then
etal = true;
break;
elseif (mask ~= nil) then
local n = tonumber(mask)
if (n ~= nil) then
one = string.rep("&mdash;",n)
else
one = mask;
sep_one = " ";
end
else
one = person.last
local first = person.first
if is_set(first) then
if ( "vanc" == format ) then first = reducetoinitials(first) end
one = one .. namesep .. first
end
if is_set(person.link) and person.link ~= control.page_name then
one = "[[" .. person.link .. "|" .. one .. "]]" -- link author/editor if this page is not the author's/editor's page
end


if is_set(person.link) and ((nil ~= person.link:find("//")) or (nil ~= person.link:find("[%[%]]"))) then
local function nowrap_date (date)
one = one .. " " .. seterror( 'bad_authorlink' ) end -- url or wikilink in author link;
local cap = '';
end
local cap2 = '';
table.insert( text, one )
table.insert( text, sep_one )
end
end


local count = #text / 2;
if date:match("^%d%d%d%d%-%d%d%-%d%d$") then
if count > 0 then
date = utilities.substitute (cfg.presentation['nowrap1'], date);
if count > 1 and is_set(lastauthoramp) and not etal then
text[#text-2] = " & ";
end
text[#text] = nil;  
end
local result = table.concat(text) -- construct list
elseif date:match("^%a+%s*%d%d?,%s+%d%d%d%d$") or date:match ("^%d%d?%s*%a+%s+%d%d%d%d$") then
if etal then
cap, cap2 = string.match (date, "^(.*)%s+(%d%d%d%d)$");
local etal_text = cfg.messages['et al'];
date = utilities.substitute (cfg.presentation['nowrap2'], {cap, cap2});
result = result .. " " .. etal_text;
end
end
return result, count
return date;
end
end


--[[--------------------------< 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.
--[[--------------------------< 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).


]]
]]


function anchorid( options )
local function set_titletype (cite_class, title_type)
local id = table.concat( options ); -- concatenate names and year for CITEREF id
if utilities.is_set (title_type) then
if is_set (id) then -- if concatenation is not an empty string
if 'none' == cfg.keywords_xlate[title_type] then
return "CITEREF" .. id; -- add the CITEREF portion
title_type = ''; -- if |type=none then type parameter not displayed
else
end
return ''; -- return an empty string; no reason to include CITEREF id in this citation
return title_type; -- if |type= has been set to any other value use that value
end
end
return cfg.title_types [cite_class] or ''; -- set template's default title type; else empty string for concatenation
end
end


--[[
Gets name list from the input arguments


Searches through args in sequential order to find |lastn= and |firstn= parameters (or their aliases), and their matching link and mask parameters.
--[[--------------------------< S A F E _ J O I N >-----------------------------
Stops searching when both |lastn= and |firstn= are not found in args after two sequential attempts: found |last1=, |last2=, and |last3= but doesn't
 
find |last4= and |last5= then the search is done.
Joins a sequence of strings together while checking for duplicate separation characters.


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=.
]]
]]
function extractnames(args, list_name)
local names = {}; -- table of names
local last; -- individual name components
local first;
local link;
local mask;
local i = 1; -- loop counter/indexer
local n = 1; -- output table indexer
local count = 0; -- used to count the number of times we haven't found a |last= (or alias for authors, |editor-last or alias for editors)
local err_msg_list_name = list_name:match ("(%w+)List") .. 's list'; -- modify AuthorList or EditorList for use in error messages if necessary


while true do
local function safe_join( tbl, duplicate_char )
last = selectone( args, cfg.aliases[list_name .. '-Last'], 'redundant_parameters', i ); -- search through args for name components beginning at 1
local f = {}; -- create a function table appropriate to type of 'duplicate character'
first = selectone( args, cfg.aliases[list_name .. '-First'], 'redundant_parameters', i );
if 1 == #duplicate_char then -- for single byte ASCII characters use the string library functions
link = selectone( args, cfg.aliases[list_name .. '-Link'], 'redundant_parameters', i );
f.gsub = string.gsub
mask = selectone( args, cfg.aliases[list_name .. '-Mask'], 'redundant_parameters', i );
f.match = string.match
 
f.sub = string.sub
if first and not last then -- if there is a firstn without a matching lastn
else -- for multi-byte characters use the ustring library functions
table.insert( z.message_tail, { seterror( 'first_missing_last', {err_msg_list_name, i}, true ) } ); -- add this error message
f.gsub = mw.ustring.gsub
elseif not first and not last then -- if both firstn and lastn aren't found, are we done?
f.match = mw.ustring.match
count = count + 1; -- number of times we haven't found last and first
f.sub = mw.ustring.sub
if 2 == count then -- two missing names and we give up
break; -- normal exit or there is a two-name hole in the list; can't tell which
end
else -- we have last with or without a first
names[n] = {last = last, first = first, link = link, mask = mask}; -- add this name to our names list
n = n + 1; -- point to next location in the names table
if 1 == count then -- if the previous name was missing
table.insert( z.message_tail, { seterror( 'missing_name', {err_msg_list_name, i-1}, true ) } ); -- add this error message
end
count = 0; -- reset the counter, we're looking for two consecutive missing names
end
end
i = i + 1; -- point to next args location
end
return names; -- all done, return our list of names
end


-- Populates ID table from arguments using configuration settings
local str = ''; -- the output string
function extractids( args )
local comp = ''; -- what does 'comp' mean?
local id_list = {};
local end_chr = '';
for k, v in pairs( cfg.id_handlers ) do
local trim;
v = selectone( args, v.parameters, 'redundant_parameters' );
for _, value in ipairs( tbl ) do
if is_set(v) then id_list[k] = v; end
if value == nil then value = ''; end
end
return id_list;
end
 
--[[--------------------------< B U I L D I D L I S T >--------------------------------------------------------
Takes a table of IDs and turns it into a table of formatted ID outputs.
 
]]
function buildidlist( id_list, options )
local new_list, handler = {};
 
function fallback(k) return { __index = function(t,i) return cfg.id_handlers[k][i] end } end;
for k, v in pairs( id_list ) do
-- fallback to read-only cfg
handler = setmetatable( { ['id'] = v }, fallback(k) );
if handler.mode == 'external' then
if str == '' then -- if output string is empty
table.insert( new_list, {handler.label, externallinkid( handler ) } );
str = value; -- assign value to it (first time through the loop)
elseif handler.mode == 'internal' then
elseif value ~= '' then
table.insert( new_list, {handler.label, internallinkid( handler ) } );
if value:sub(1, 1) == '<' then -- special case of values enclosed in spans and other markup.
elseif handler.mode ~= 'manual' then
comp = value:gsub( "%b<>", "" ); -- remove HTML markup (<span>string</span> -> string)
error( cfg.messages['unknown_ID_mode'] );
else
elseif k == 'DOI' then
comp = value;
table.insert( new_list, {handler.label, doi( v, options.DoiBroken ) } );
elseif k == 'ARXIV' then
table.insert( new_list, {handler.label, arxiv( v ) } );
elseif k == 'ASIN' then
table.insert( new_list, {handler.label, amazon( v, options.ASINTLD ) } );
elseif k == 'LCCN' then
table.insert( new_list, {handler.label, lccn( v ) } );
elseif k == 'OL' then
table.insert( new_list, {handler.label, openlibrary( v ) } );
elseif k == 'PMC' then
table.insert( new_list, {handler.label, pmc( v, options.Embargo ) } );
elseif k == 'PMID' then
table.insert( new_list, {handler.label, pmid( v ) } );
elseif k == 'ISSN' then
table.insert( new_list, {handler.label, issn( v ) } );
elseif k == 'ISBN' then
local ISBN = internallinkid( handler );
if not checkisbn( v ) and not is_set(options.IgnoreISBN) then
ISBN = ISBN .. seterror( 'bad_isbn', {}, false, " ", "" );
end
end
table.insert( new_list, {handler.label, ISBN } );
-- typically duplicate_char is sepc
elseif k == 'USENETID' then
if f.sub(comp, 1, 1) == duplicate_char then -- is first character same as duplicate_char? why test first character?
table.insert( new_list, {handler.label, message_id( v ) } );
--  Because individual string segments often (always?) begin with terminal punct for the
else
--  preceding segment: 'First element' .. 'sepc next element' .. etc.?
error( cfg.messages['unknown_manual_ID'] );
trim = false;
end
end_chr = f.sub(str, -1, -1); -- get the last character of the output string
end
-- str = str .. "<HERE(enchr=" .. end_chr .. ")" -- debug stuff?
if end_chr == duplicate_char then -- if same as separator
function comp( a, b ) -- used in following table.sort()
str = f.sub(str, 1, -2); -- remove it
return a[1] < b[1];
elseif end_chr == "'" then -- if it might be wiki-markup
end
if 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 ''
table.sort( new_list, comp );
elseif  f.sub(str, -5, -1) == duplicate_char .. "]]''" then -- if last five chars of str are sepc]]''
for k, v in ipairs( new_list ) do
trim = true; -- why? why do this and next differently from previous?
new_list[k] = v[2];
elseif f.sub(str, -4, -1) == duplicate_char .. "]''" then -- if last four chars of str are sepc]''
end
trim = true; -- same question
end
return new_list;
elseif end_chr == "]" then -- if it might be wiki-markup
end
if f.sub(str, -3, -1) == duplicate_char .. "]]" then -- if last three chars of str are sepc]] wikilink
 
trim = true;
-- Chooses one matching parameter from a list of parameters to consider
elseif f.sub(str, -3, -1) == duplicate_char .. '"]' then -- if last three chars of str are sepc"] quoted external link
-- Generates an error if more than one match is present.
trim = true;
function selectone( args, possible, error_condition, index )
elseif  f.sub(str, -2, -1) == duplicate_char .. "]" then -- if last two chars of str are sepc] external link
local value = nil;
trim = true;
local selected = '';
elseif f.sub(str, -4, -1) == duplicate_char .. "'']" then -- normal case when |url=something & |title=Title.
local error_list = {};
trim = true;
end
if index ~= nil then index = tostring(index); end
elseif end_chr == " " then -- if last char of output string is a space
if f.sub(str, -2, -1) == duplicate_char .. " " then -- if last two chars of str are <sepc><space>
-- Handle special case of "#" replaced by empty string
str = f.sub(str, 1, -3); -- remove them both
if index == '1' then
end
for _, v in ipairs( possible ) do
end
v = v:gsub( "#", "" );
 
if is_set(args[v]) then
if trim then
if value ~= nil and selected ~= v then
if value ~= comp then -- value does not equal comp when value contains HTML markup
table.insert( error_list, v );
local dup2 = duplicate_char;
else
if f.match(dup2, "%A" ) then dup2 = "%" .. dup2; end -- if duplicate_char not a letter then escape it
value = args[v];
selected = v;
value = f.gsub(value, "(%b<>)" .. dup2, "%1", 1 ) -- remove duplicate_char if it follows HTML markup
else
value = f.sub(value, 2, -1 ); -- remove duplicate_char when it is first character
end
end
end
end
end
end
str = str .. value; -- add it to the output string
end
for _, v in ipairs( possible ) do
if index ~= nil then
v = v:gsub( "#", index );
end
if is_set(args[v]) then
if value ~= nil and selected ~=  v then
table.insert( error_list, v );
else
value = args[v];
selected = v;
end
end
end
end
end
return str;
if #error_list > 0 then
end
local error_str = "";
 
for _, k in ipairs( error_list ) do
 
if error_str ~= "" then error_str = error_str .. cfg.messages['parameter-separator'] end
--[[--------------------------< I S _ S U F F I X >-----------------------------
error_str = error_str .. wrap_style ('parameter', k);
 
returns true if suffix is properly formed Jr, Sr, or ordinal in the range 1–9.
Puncutation not allowed.
 
]]
 
local function is_suffix (suffix)
if utilities.in_array (suffix, {'Jr', 'Sr', 'Jnr', 'Snr', '1st', '2nd', '3rd'}) or suffix:match ('^%dth$') then
return true;
end
return 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 name uses characters that contain diacritical
marks, those characters are to be 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. The module doesn't do this
so editors may/must.
 
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 periods
 
This original test:
if nil == mw.ustring.find (last, "^[A-Za-zÀ-ÖØ-öø-ƿDŽ-ɏ%-%s%']*$")
or nil == mw.ustring.find (first, "^[A-Za-zÀ-ÖØ-öø-ƿDŽ-ɏ%-%s%'%.]+[2-6%a]*$") then
was written outside 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 necessary to 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, suffix, position)
if not suffix then
if first:find ('[,%s]') then -- when there is a space or comma, might be first name/initials + generational suffix
first = first:match ('(.-)[,%s]+'); -- get name/initials
suffix = first:match ('[,%s]+(.+)$'); -- get generational suffix
end
end
if #error_list > 1 then
end
error_str = error_str .. cfg.messages['parameter-final-separator'];
if utilities.is_set (suffix) then
else
if not is_suffix (suffix) then
error_str = error_str .. cfg.messages['parameter-pair-separator'];
add_vanc_error (cfg.err_msg_supl.suffix, position);
return false; -- not a name with an appropriate suffix
end
end
error_str = error_str .. wrap_style ('parameter', selected);
table.insert( z.message_tail, { seterror( error_condition, {error_str}, true ) } );
end
end
if nil == mw.ustring.find (last, "^[A-Za-z\195\128-\195\150\195\152-\195\182\195\184-\198\191\199\132-\201\143%-%s%']*$") or
return value, selected;
nil == mw.ustring.find (first, "^[A-Za-z\195\128-\195\150\195\152-\195\182\195\184-\198\191\199\132-\201\143%-%s%'%.]*$") then
add_vanc_error (cfg.err_msg_supl['non-Latin char'], position);
return false; -- not a string of Latin characters; Vancouver requires Romanization
end;
return true;
end
end


-- COinS metadata (see <http://ocoins.info/>) allows automated tools to parse
-- the citation information.
function COinS(data)
if 'table' ~= type(data) or nil == next(data) then
return '';
end
local ctx_ver = "Z39.88-2004";
-- treat table strictly as an array with only set values.
local OCinSoutput = setmetatable( {}, {
__newindex = function(self, key, value)
if is_set(value) then
rawset( self, #self+1, table.concat{ key, '=', mw.uri.encode( removewikilink( value ) ) } );
end
end
});
if is_set(data.Chapter) then
OCinSoutput.rft_val_fmt = "info:ofi/fmt:kev:mtx:book";
OCinSoutput["rft.genre"] = "bookitem";
OCinSoutput["rft.atitle"] = data.Chapter;
OCinSoutput["rft.btitle"] = data.Title;
elseif is_set(data.Periodical) then
OCinSoutput.rft_val_fmt = "info:ofi/fmt:kev:mtx:journal";
OCinSoutput["rft.genre"] = "article";
OCinSoutput["rft.jtitle"] = data.Periodical;
OCinSoutput["rft.atitle"] = data.Title;
else
OCinSoutput.rft_val_fmt = "info:ofi/fmt:kev:mtx:book";
OCinSoutput["rft.genre"] = "book"
OCinSoutput["rft.btitle"] = data.Title;
end
OCinSoutput["rft.place"] = data.PublicationPlace;
OCinSoutput["rft.date"] = data.Date;
OCinSoutput["rft.series"] = data.Series;
OCinSoutput["rft.volume"] = data.Volume;
OCinSoutput["rft.issue"] = data.Issue;
OCinSoutput["rft.pages"] = data.Pages;
OCinSoutput["rft.edition"] = data.Edition;
OCinSoutput["rft.pub"] = data.PublisherName;
for k, v in pairs( data.ID_list ) do
local id, value = cfg.id_handlers[k].COinS;
if k == 'ISBN' then value = cleanisbn( v ); else value = v; end
if string.sub( id or "", 1, 4 ) == 'info' then
OCinSoutput["rft_id"] = table.concat{ id, "/", v };
else
OCinSoutput[ id ] = value;
end
end
local last, first;
for k, v in ipairs( data.Authors ) do
last, first = v.last, v.first;
if k == 1 then
if is_set(last) then
OCinSoutput["rft.aulast"] = last;
end
if is_set(first) then
OCinSoutput["rft.aufirst"] = first;
end
end
if is_set(last) and is_set(first) then
OCinSoutput["rft.au"] = table.concat{ last, ", ", first };
elseif is_set(last) then
OCinSoutput["rft.au"] = last;
end
end
OCinSoutput.rft_id = data.URL;
OCinSoutput.rfr_id = table.concat{ "info:sid/", mw.site.server:match( "[^/]*$" ), ":", data.RawPage };
OCinSoutput = setmetatable( OCinSoutput, nil );
-- sort with version string always first, and combine.
table.sort( OCinSoutput );
table.insert( OCinSoutput, 1, "ctx_ver=" .. ctx_ver );  -- such as "Z39.88-2004"
return table.concat(OCinSoutput, "&");
end


--[[--------------------------< 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-style=vanc. 


--[[--------------------------< G E T _ I S O 6 3 9 _ C O D E >------------------------------------------------
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/.


Validates language names provided in |language= parameter if not an ISO639-1 code.  Handles the special case that is Norwegian where
Vancouver style requires family rank designations (Jr, II, III, etc.) to be rendered
ISO639-1 code 'no' is mapped to language name 'Norwegian Bokmål' by Extention:CLDR.
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.


Returns the language name and associated ISO639-1 code.  Because case of the source may be incorrect or different from the case that Wikimedia
This function uses ustring functions because firstname initials may be any of the
uses, the name comparisons are done in lower case and when a match is found, the Wikimedia version (assumed to be correct) is returned along
Unicode Latin characters accepted by is_good_vanc_name ().
with the code.  When there is no match, we return the original language name string.


mw.language.fetchLanguageNames() will return a list of languages that aren't part of ISO639-1. Names that aren't ISO639-1 but that are included
]]
in the list will be found if that name is provided in the |language= parameter.  For example, if |language=Samaritan Aramaic, that name will be
found with the associated code 'sam', not an ISO639-1 code.  When names are found and the associated code is not two characters, this function
returns only the Wikimedia language name.


Adapted from code taken from Module:Check ISO 639-1.
local function reduce_to_initials(first, position)
]]
local name, suffix = mw.ustring.match(first, "^(%u+) ([%dJS][%drndth]+)$");


function get_iso639_code (lang)
if not name then -- if not initials and a suffix
if 'norwegian' == lang:lower() then -- special case related to Wikimedia remap of code 'no' at Extension:CLDR
name = mw.ustring.match(first, "^(%u+)$"); -- is it just initials?
return 'Norwegian', 'no'; -- Make sure rendered version is properly capitalized
end
end
 
local languages = mw.language.fetchLanguageNames('en', 'all') -- get a list of language names known to Wikimedia
if name then -- if first is initials with or without suffix
-- ('all' is required for North Ndebele, South Ndebele, and Ojibwa)
if 3 > mw.ustring.len (name) then -- if one or two initials
local langlc = mw.ustring.lower(lang); -- lower case version for comparisons
if suffix then -- if there is a suffix
if is_suffix (suffix) then -- is it legitimate?
for code, name in pairs(languages) do -- scan the list to see if we can find our language
return first; -- one or two initials and a valid suffix so nothing to do
if langlc == mw.ustring.lower(name) then
else
if 2 ~= code:len() then -- ISO639-1 codes only
add_vanc_error (cfg.err_msg_supl.suffix, position); -- one or two initials with invalid suffix so error message
return name; -- so return the name but not the code
return first; -- and return first unmolested
end
else
return first; -- one or two initials without suffix; nothing to do
end
end
return name, code; -- found it, return name to ensure proper capitalization and the ISO639-1 code
end
end
end -- if here then name has 3 or more uppercase letters so treat them as a word
local initials, names = {}, {}; -- tables to hold name parts and initials
local i = 1; -- counter for number of initials
names = mw.text.split (first, '[%s,]+'); -- split into a table of names and possible suffix
while names[i] do -- loop through the table
if 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 present
if is_suffix (names[i]) then -- if a legitimate suffix
table.insert (initials, ' ' .. names[i]); -- add a separator space, insert at end of initials table
break; -- and done because suffix must fall at the end of a name
end -- no error message if not a suffix; possibly because of Romanization
end
if 3 > i then
table.insert (initials, mw.ustring.sub(names[i], 1, 1)); -- insert the initial at end of initials table
end
i = i + 1; -- bump the counter
end
end
return lang; -- not valid language; return language in original case and nil for ISO639-1 code
return table.concat(initials) -- Vancouver format does not include spaces.
end
end


--[[--------------------------< L A N G U A G E _ P A R A M E T E R >------------------------------------------


Get language name from ISO639-1 code value provided.  If a code is valid use the returned name; if not, then use the value that was provided with the language parameter.
--[[--------------------------< L I S T _ P E O P L E >--------------------------


There is an exception.  There are three ISO639-1 codes for Norewegian language variants.  There are two official variants: Norwegian Bokmål (code 'nb') and
Formats a list of people (authors, contributors, editors, interviewers, translators)
Norwegian Nynorsk (code 'nn').  The third, code 'no', is defined by ISO639-1 as 'Norwegian' though in Norway this is pretty much meaningless.  However, it appears
that on enwiki, editors are for the most part unaware of the nb and nn variants (compare page counts for these variants at Category:Articles with non-English-language external links.


Because Norwegian Bokmål is the most common language variant, Media wiki has been modified to return Norwegian Bokmål for ISO639-1 code 'no'. Here we undo that and
names in the list will be linked when
return 'Norwegian' when editors use |language=no.  We presume that editors don't know about the variants or can't descriminate between them.
|<name>-link= has a value
|<name>-mask- does NOT have a value; masked names are presumed to have been
rendered previously so should have been linked there


See Help talk:Citation Style_1#An ISO 639-1 language name test
when |<name>-mask=0, the associated name is not rendered
 
When |language= contains a valid ISO639-1 code, the page is assigned to the category for that code: Category:Norwegian-language sources (no) if
the page is a mainspace page and the ISO639-1 code is not 'en'.  Similarly, if the  parameter is |language=Norwegian, it will be categorized in the same way.


]]
]]


function language_parameter (lang, namespace)
local function list_people (control, people, etal)
local code; -- the ISO639-1 two character code
local sep;
local name; -- the language name
local namesep;
local test='';
local format = control.format;
local maximum = control.maximum;
if 0 == namespace and (('en' == lang:lower()) or ('english' == lang:lower())) then
local name_list = {};
table.insert (z.maintenance_cats, 'CS1 maint: English language specified'); -- add maintenance category if |language=English or |language=en in article space
end


if 2 == lang:len() then -- ISO639-1 language code are 2 characters (fetchLanguageName also supports 3 character codes)
if 'vanc' == format then -- Vancouver-like name styling?
name = mw.language.fetchLanguageName( lang:lower(), "en" ); -- get ISO 639-1 language name if Language is a proper code
sep = cfg.presentation['sep_nl_vanc']; -- name-list separator between names is a comma
end
namesep = cfg.presentation['sep_name_vanc']; -- last/first separator is a space
 
if is_set (name) then -- if Language specified a valid ISO639-1 code
code = lang:lower(); -- save it
else
else
name, code = get_iso639_code (lang); -- attempt to get code from name (assign name here so that we are sure of proper capitalization)
sep = cfg.presentation['sep_nl']; -- name-list separator between names is a semicolon
namesep = cfg.presentation['sep_name']; -- last/first separator is <comma><space>
end
end
if sep:sub (-1, -1) ~= " " then sep = sep .. " " end
if utilities.is_set (maximum) and maximum < 1 then return "", 0; end -- returned 0 is for EditorCount; not used for other names
for i, person in ipairs (people) do
if utilities.is_set (person.last) then
local mask = person.mask;
local one;
local sep_one = sep;


if is_set (code) then
if utilities.is_set (maximum) and i > maximum then
if 'no' == code then name = 'Norwegian' end; -- override wikimedia when code is 'no'
etal = true;
if 0 == namespace and 'en' ~= code then -- is this page main / article space and English not the language?
break;
-- خط زیر برای اطمینان از نام فارسی زبان نوشته شده‌است
end
local nameInFa = mw.language.fetchLanguageName(code, 'fa')
-- در خط زیر جای متغیر name که مقدار انگلیسی دارد از nameInFa استفاده شده‌است.
if mask then
table.insert( z.properties_cats, 'منابع به زبان ' .. nameInFa .. ' در شیوه یادکرد ۱ (' .. code .. ')'); -- in main space and not English: categorize
local n = tonumber (mask); -- convert to a number if it can be converted; nil else
end
if n then
else
one = 0 ~= n and string.rep("&mdash;", n) or nil; -- make a string of (n > 0) mdashes, nil else, to replace name
table.insert (z.maintenance_cats, 'CS1 maint: Unrecognized language'); -- add maintenance category when |language= does not appear to be ISO 639-1 language
person.link = nil; -- don't create link to name if name is replaces with mdash string or has been set nil
else
one = mask; -- replace name with mask text (must include name-list separator)
sep_one = " "; -- modify name-list separator
end
else
one = person.last; -- get surname
local first = person.first -- get given name
if utilities.is_set (first) then
if ("vanc" == format) then -- if Vancouver format
one = 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, nil, i) then -- and name is all Latin characters; corporate authors not tested
first = reduce_to_initials (first, i); -- attempt to convert first name(s) to initials
end
end
one = one .. namesep .. first;
end
end
if utilities.is_set (person.link) then
one = utilities.make_wikilink (person.link, one); -- link author/editor
end
if one then -- if <one> has a value (name, mdash replacement, or mask text replacement)
table.insert (name_list, one); -- add it to the list of names
table.insert (name_list, sep_one); -- add the proper name-list separator
end
end
end
end
return (" " .. wrap_msg ('language', name)); -- wrap with '(in ...)'
end


--[[--------------------------< G E T _ S E T T I N G S _ F R O M _ C I T E _ C L A S S >----------------------
local count = #name_list / 2; -- (number of names + number of separators) divided by 2
When |mode= is not set or when its value is invalid, use config.CitationClass and parameter values to establish
if 0 < count then  
rendered style.
if 1 < count and not etal then
 
if 'amp' == format then
]]
name_list[#name_list-2] = " & "; -- replace last separator with ampersand text
 
elseif 'and' == format then
function get_settings_from_cite_class (ps, ref, cite_class)
if 2 == count then
local sep;
name_list[#name_list-2] = cfg.presentation.sep_nl_and; -- replace last separator with 'and' text
if (cite_class == "citation") then -- for citation templates (CS2)
else
sep = ','; -- set citation separator to its default (comma)
name_list[#name_list-2] = cfg.presentation.sep_nl_end; -- replace last separator with '(sep) and' text
if not is_set (ps) then -- if |postscript= has not been set, set cs2 default
end
ps = ''; -- make sure it isn't nil
end
end
if not is_set (ref) then -- if |ref= is not set
ref = "harv"; -- set default |ref=harv
end
else -- not a citation template so CS1
sep = '.'; -- set cite xxx separator to its default (period)
if not is_set (ps) then -- if |postscript= has not been set
ps = '.'; -- set cs1 default
end
end
name_list[#name_list] = nil; -- erase the last separator
end
end


return sep, ps, ref -- return them all
local result = table.concat (name_list); -- construct list
if etal and utilities.is_set (result) then -- etal may be set by |display-authors=etal but we might not have a last-first list
result = result .. sep .. ' ' .. cfg.messages['et al']; -- we've got a last-first list and etal so add et al.
end
return result, count; -- return name-list string and count of number of names (count used for editor names only)
end
end


--[[--------------------------< 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 uses
--[[--------------------< M A K E _ C I T E R E F _ I D >-----------------------
config.CitationClass from the template's #invoke: to establish style.
 
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.


]]
]]


function set_style (mode, ps, ref, cite_class)
local function make_citeref_id (namelist, year)
local sep;
local names={}; -- a table for the one to four names and year
if is_set (mode) then
for i,v in ipairs (namelist) do -- loop through the list and take up to the first four last names
if 'cs2' == mode then -- if this template is to be rendered in CS2 (citation) style
names[i] = v.last
sep = ','; -- separate elements with a comma
if i == 4 then break end -- if four then done
if not is_set (ps) then -- unless explicitely set to something
end
ps = ''; -- make sure it isn't nil
table.insert (names, year); -- add the year at the end
end
local id = table.concat(names); -- concatenate names and year for CITEREF id
if not is_set (ref) then -- unless explicitely set to something
if utilities.is_set (id) then -- if concatenation is not an empty string
ref = 'harv'; -- set so this template renders with CITEREF anchor id
return "CITEREF" .. id; -- add the CITEREF portion
end
else
elseif 'cs1' == mode then -- if this template is to be rendered in CS1 (cite xxx) style
return ''; -- return an empty string; no reason to include CITEREF id in this citation
sep = '.'; -- separate elements with a period
if not is_set (ps) then -- unless explicitely set to something
ps = '.'; -- terminate the rendered citation with a period
end
else -- anything but cs1 or cs2
table.insert( z.message_tail, { seterror( 'invalid_param_val', {'mode', mode}, true ) } ); -- add error message
sep, ps, ref = get_settings_from_cite_class (ps, ref, cite_class); -- get settings based on the template's CitationClass
end
else -- when |mode= empty or omitted
sep, ps, ref = get_settings_from_cite_class (ps, ref, cite_class); -- get settings based on the template's CitationClass
end
end
if 'none' == ps:lower() then -- if assigned value is 'none' then
ps = ''; -- set to empty string
end
return sep, ps, ref
end
end




--[[--------------------------< C I T A T I O N 0 >------------------------------------------------------------
--[[--------------------------< C I T E _ C L A S S _A T T R I B U T E _M A K E >------------------------------
This is the main function doing the majority of the citation
 
formatting.
construct <cite> tag class attribute for this citation.
 
<cite_class> – config.CitationClass from calling template
<mode> – value from |mode= parameter
 
]]
]]
function citation0( config, args)
--[[
Load Input Parameters
The argument_wrapper facilitates the mapping of multiple
aliases to single internal variable.
]]
local A = argument_wrapper( args );


local i
local function cite_class_attribute_make (cite_class, mode)
local PPrefix = A['PPrefix']
local class_t = {};
local PPPrefix = A['PPPrefix']
table.insert (class_t, 'citation'); -- required for blue highlight
if is_set( A['NoPP'] ) then PPPrefix = "" PPrefix = "" end
if 'citation' ~= cite_class then
table.insert (class_t, cite_class); -- identify this template for user css
-- Pick out the relevant fields from the arguments.  Different citation templates
table.insert (class_t, utilities.is_set (mode) and mode or 'cs1'); -- identify the citation style for user css or javascript
-- define different field names for the same underlying things.
else
local Authors = A['Authors'];
table.insert (class_t, utilities.is_set (mode) and mode or 'cs2'); -- identify the citation style for user css or javascript
local a = extractnames( args, 'AuthorList' );
end
for _, prop_key in ipairs (z.prop_keys_t) do
table.insert (class_t, prop_key); -- identify various properties for user css or javascript
end
 
return table.concat (class_t, ' '); -- make a big string and done
end


local Coauthors = A['Coauthors'];
local Others = A['Others'];
local Editors = A['Editors'];
local e = extractnames( args, 'EditorList' );


local NameListFormat = A['NameListFormat']; -- replaces |author-format= and |editor-format=
--[[---------------------< N A M E _ H A S _ E T A L >--------------------------
if is_set (NameListFormat) and ('vanc' ~= NameListFormat) then -- only accepted value for this parameter is 'vanc'
table.insert( z.message_tail, { seterror( 'invalid_param_val', {'name-list-format', NameListFormat}, true ) } ); -- not vanc so add error message
NameListFormat = ''; -- set to empty string
end


local Year = A['Year'];
Evaluates the content of name parameters (author, editor, etc.) for variations on
local PublicationDate = A['PublicationDate'];
the theme of et al.  If found, the et al. is removed, a flag is set to true and
local OrigYear = A['OrigYear'];
the function returns the modified name and the flag.
local Date = A['Date'];
 
local LayDate = A['LayDate'];
This function never sets the flag to false but returns its previous state because
------------------------------------------------- Get title data
it may have been set by previous passes through this function or by the associated
local Title = A['Title'];
|display-<names>=etal parameter
local ScriptTitle = A['ScriptTitle'];
 
local BookTitle = A['BookTitle'];
]]
local Conference = A['Conference'];
local TransTitle = A['TransTitle'];
local TitleNote = A['TitleNote'];
local TitleLink = A['TitleLink'];
local Chapter = A['Chapter'];
local ChapterLink = A['ChapterLink']; -- deprecated
local TransChapter = A['TransChapter'];
local TitleType = A['TitleType'];
local Degree = A['Degree'];
local Docket = A['Docket'];
local ArchiveURL = A['ArchiveURL'];
local URL = A['URL']
local URLorigin = A:ORIGIN('URL'); -- get name of parameter that holds URL
local ChapterURL = A['ChapterURL'];
local ChapterURLorigin = A:ORIGIN('ChapterURL'); -- get name of parameter that holds ChapterURL
local ConferenceURL = A['ConferenceURL'];
local ConferenceURLorigin = A:ORIGIN('ConferenceURL'); -- get name of parameter that holds ConferenceURL
local Periodical = A['Periodical'];


local Series = A['Series'];
local function name_has_etal (name, etal, nocat, param)
local Volume = A['Volume'];
local Issue = A['Issue'];
local Position = '';
local Page = A['Page'];
local Pages = hyphentodash( A['Pages'] );
local At = A['At'];


local Edition = A['Edition'];
if utilities.is_set (name) then -- name can be nil in which case just return
local PublicationPlace = A['PublicationPlace']
local patterns = cfg.et_al_patterns; -- get patterns from configuration
local Place = A['Place'];
for _, pattern in ipairs (patterns) do -- loop through all of the patterns
local PublisherName = A['PublisherName'];
if name:match (pattern) then -- if this 'et al' pattern is found in name
local RegistrationRequired = A['RegistrationRequired'];
name = name:gsub (pattern, ''); -- remove the offending text
local SubscriptionRequired = A['SubscriptionRequired'];
etal = true; -- set flag (may have been set previously here or by |display-<names>=etal)
local Via = A['Via'];
if not nocat then -- no categorization for |vauthors=
local AccessDate = A['AccessDate'];
utilities.set_message ('err_etal', {param}); -- and set an error if not added
local ArchiveDate = A['ArchiveDate'];
end
local Agency = A['Agency'];
end
local DeadURL = A['DeadURL']
end
local Language = A['Language'];
end
local Format = A['Format'];
local ChapterFormat = A['ChapterFormat'];
local DoiBroken = A['DoiBroken'];
local ID = A['ID'];
local ASINTLD = A['ASINTLD'];
local IgnoreISBN = A['IgnoreISBN'];
local Embargo = A['Embargo'];


local ID_list = extractids( args );
return name, etal;
 
end
local Quote = A['Quote'];


local LayURL = A['LayURL'];
local LaySource = A['LaySource'];
local Transcript = A['Transcript'];
local TranscriptURL = A['TranscriptURL']
local TranscriptURLorigin = A:ORIGIN('TranscriptURL'); -- get name of parameter that holds TranscriptURL


local LastAuthorAmp = A['LastAuthorAmp'];
--[[---------------------< N A M E _ I S _ N U M E R I C >----------------------
local no_tracking_cats = A['NoTracking'];


--these are used by cite interview
Add maint cat when name parameter value does not contain letters.  Does not catch
local Callsign = A['Callsign'];
mixed alphanumeric names so |last=A. Green (1922-1987) does not get caught in the
local City = A['City'];
current version of this test but |first=(1888) is caught.
local Program = A['Program'];


--local variables that are not cs1 parameters
returns nothing
local use_lowercase; -- controls capitalization of certain static text
local this_page = mw.title.getCurrentTitle(); -- also used for COinS and for language
local anchor_year; -- used in the CITEREF identifier
local COinS_date; -- used in the COinS metadata


-- set default parameter values defined by |mode= parameter.  If |mode= is empty or omitted, use CitationClass to set these values
]]
local sepc; -- separator between citation elements for CS1 a period, for CS2, a comma
local PostScript;
local Ref;
sepc, PostScript, Ref = set_style (A['Mode']:lower(), A['PostScript'], A['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 categories.
local function name_is_numeric (name, list_name)
if not is_set(no_tracking_cats) then -- ignore if we are already not going to categorize this page
if utilities.is_set (name) then
if inArray (this_page.nsText, cfg.uncategorized_namespaces) then
if mw.ustring.match (name, '^[%A]+$') then -- when name does not contain any letters
no_tracking_cats = "true"; -- set no_tracking_cats
utilities.set_message ('maint_numeric_names', cfg.special_case_translation [list_name]); -- add a maint cat for this template
end
end
end
end
end


-- check for extra |page=, |pages= or |at= parameters.
if is_set(Page) then
if is_set(Pages) or is_set(At) then
Page = Page .. " " .. seterror('extra_pages'); -- add error message
Pages = ''; -- unset the others
At = '';
end
elseif is_set(Pages) then
if is_set(At) then
Pages = Pages .. " " .. seterror('extra_pages'); -- add error messages
At = ''; -- unset
end
end


-- both |publication-place= and |place= (|location=) allowed if different
--[[-----------------< N A M E _ H A S _ M U L T _ N A M E S >------------------
if not is_set(PublicationPlace) and is_set(Place) then
 
PublicationPlace = Place; -- promote |place= (|location=) to |publication-place
Evaluates the content of last/surname (authors etc.) parameters for multiple names.
end
Multiple names are indicated if there is more than one comma or any "unescaped"
semicolons. Escaped semicolons are ones used as part of selected HTML entities.
if PublicationPlace == Place then Place = ''; end -- don't need both if they are the same
If the condition is met, the function adds the multiple name maintenance category.
--[[
Parameter remapping for cite encyclopedia:
When the citation has these parameters:
|encyclopedia and |title then map |title to |article and |encyclopedia to |title
|encyclopedia and |article then map |encyclopedia to |title
|encyclopedia then map |encyclopedia to |title


|trans_title maps to |trans_chapter when |title is re-mapped
returns nothing
|url maps to |chapterurl when |title is remapped


All other combinations of |encyclopedia, |title, and |article are not modified
TODO: script-title to script-chapter if and when we support script-chapter
]]
]]


local Encyclopedia = A['Encyclopedia'];
local function name_has_mult_names (name, list_name)
 
local _, commas, semicolons, nbsps;
if ( config.CitationClass == "encyclopaedia" ) or ( config.CitationClass == "citation" and is_set (Encyclopedia)) then -- test code for citation
if utilities.is_set (name) then
if is_set(Periodical) then -- Periodical is set when |encyclopedia is set
_, commas = name:gsub (',', ''); -- count the number of commas
if is_set(Title) then
_, semicolons = name:gsub (';', ''); -- count the number of semicolons
if not is_set(Chapter) then
-- nbsps probably should be its own separate count rather than merged in
Chapter = Title; -- |encyclopedia and |title are set so map |title to |article and |encyclopedia to |title
-- some way with semicolons because Lua patterns do not support the
TransChapter = TransTitle;
-- grouping operator that regex does, which means there is no way to add
ChapterURL = URL;
-- more entities to escape except by adding more counts with the new
Title = Periodical;
-- entities
ChapterFormat = Format;
_, nbsps = name:gsub ('&nbsp;',''); -- count nbsps
Periodical = ''; -- redundant so unset
TransTitle = ''; -- redundant so unset
-- There is exactly 1 semicolon per &nbsp; entity, so subtract nbsps
URL = ''; -- redundant so unset
-- from semicolons to 'escape' them. If additional entities are added,
Format = ''; -- redundant so unset
-- they also can be subtracted.
end
if 1 < commas or 0 < (semicolons - nbsps) then
else -- |title not set
utilities.set_message ('maint_mult_names', cfg.special_case_translation [list_name]); -- add a maint message
Title = Periodical; -- |encyclopedia set and |article set or not set so map |encyclopedia to |title
Periodical = ''; -- redundant so unset
end
end
end
end
end
end
--[=[-------------------------< I S _ G E N E R I C >----------------------------------------------------------
Compares values assigned to various parameters according to the string provided as <item> in the function call.
<item> can have on of two values:
'generic_names' – for name-holding parameters: |last=, |first=, |editor-last=, etc
'generic_titles' – for |title=
There are two types of generic tests.  The 'accept' tests look for a pattern that should not be rejected by the
'reject' test.  For example,
|author=[[John Smith (author)|Smith, John]]
would be rejected by the 'author' reject test.  But piped wikilinks with 'author' disambiguation should not be
rejected so the 'accept' test prevents that from happening.  Accept tests are always performed before reject
tests.
Each of the 'accept' and 'reject' sequence tables hold tables for en.wiki (['en']) and local.wiki (['local'])
that each can hold a test sequence table  The sequence table holds, at index [1], a test pattern, and, at index
[2], a boolean control value.  The control value tells string.find() or mw.ustring.find() to do plain-text search (true)
or a pattern search (false).  The intent of all this complexity is to make these searches as fast as possible so
that we don't run out of processing time on very large articles.
Returns
true when a reject test finds the pattern or string
false when an accept test finds the pattern or string
nil else
]=]


-- Special case for cite techreport.
local function is_generic (item, value, wiki)
if (config.CitationClass == "techreport") then -- special case for cite techreport
local test_val;
if is_set(Issue) then -- cite techreport uses 'number', which other citations aliase to 'issue'
local str_lower = { -- use string.lower() for en.wiki (['en']) and use mw.ustring.lower() or local.wiki (['local'])
if not is_set(ID) then -- can we use ID for the "number"?
['en'] = string.lower,
ID = Issue; -- yes, use it
['local'] = mw.ustring.lower,
Issue = ""; -- unset Issue so that "number" isn't duplicated in the rendered citation or COinS metadata
}
else -- can't use ID so emit error message
local str_find = { -- use string.find() for en.wiki (['en']) and use mw.ustring.find() or local.wiki (['local'])
ID = ID .. " " .. seterror('redundant_parameters', '<code>&#124;id=</code> and <code>&#124;number=</code>');
['en'] = string.find,
end
['local'] = mw.ustring.find,
end
}
 
local function test (val, test_t, wiki) -- local function to do the testing; <wiki> selects lower() and find() functions
val = test_t[2] and str_lower[wiki](value) or val; -- when <test_t[2]> set to 'true', plaintext search using lowercase value
return str_find[wiki] (val, test_t[1], 1, test_t[2]); -- return nil when not found or matched
end
end
local test_types_t = {'accept', 'reject'}; -- test accept patterns first, then reject patterns
local wikis_t = {'en', 'local'}; -- do tests for each of these keys; en.wiki first, local.wiki second


-- special case for cite interview
for _, test_type in ipairs (test_types_t) do -- for each test type
if (config.CitationClass == "interview") then
for _, generic_value in pairs (cfg.special_case_translation[item][test_type]) do -- spin through the list of generic value fragments to accept or reject
if is_set(Program) then
for _, wiki in ipairs (wikis_t) do
ID = ' ' .. Program;
if generic_value[wiki] then
end
if test (value, generic_value[wiki], wiki) then -- go do the test
if is_set(Callsign) then
return ('reject' == test_type); -- param value rejected, return true; false else
if is_set(ID) then
end
ID = ID .. sepc .. ' ' .. Callsign;
end
else
ID = ' ' .. Callsign;
end
end
if is_set(City) then
if is_set(ID) then
ID = ID .. sepc .. ' ' .. City;
else
ID = ' ' .. City;
end
end
end
end
end
end
--[[--------------------------< N A M E _ I S _ G E N E R I C >------------------------------------------------
calls is_generic() to determine if <name> is a 'generic name' listed in cfg.generic_names; <name_alias> is the
parameter name used in error messaging
]]
local function name_is_generic (name, name_alias)
if not added_generic_name_errs  and is_generic ('generic_names', name) then
utilities.set_message ('err_generic_name', name_alias); -- set an error message
added_generic_name_errs = true;
end
end
--[[--------------------------< 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-holding parameters.
]]
local function name_checks (last, first, list_name, last_alias, first_alias)
local accept_name;
if utilities.is_set (last) then
last, accept_name = utilities.has_accept_as_written (last); -- remove accept-this-as-written markup when it wraps all of <last>


if is_set(Others) then
if not accept_name then -- <last> not wrapped in accept-as-written markup
if is_set(TitleType) then
name_has_mult_names (last, list_name); -- check for multiple names in the parameter (last only)
Others = ' ' .. TitleType .. ' با ' .. Others;
name_is_numeric (last, list_name); -- check for names that are composed of digits and punctuation
TitleType = '';
name_is_generic (last, last_alias); -- check for names found in the generic names list
else
Others = ' ' .. 'مصاحبه با ' .. Others;
end
else
Others = '(مصاحبه)';
end
end
end
end


-- special case for cite mailing list
if utilities.is_set (first) then
if (config.CitationClass == "mailinglist") then
first, accept_name = utilities.has_accept_as_written (first); -- remove accept-this-as-written markup when it wraps all of <first>
Periodical = A ['MailingList'];
end


--Account for the oddity that is {{cite journal}} with |pmc= set and |url= not set
if not accept_name then -- <first> not wrapped in accept-as-written markup
if config.CitationClass == "journal" and not is_set(URL) and is_set(ID_list['PMC']) then
name_is_numeric (first, list_name); -- check for names that are composed of digits and punctuation
if not is_embargoed(Embargo) then
name_is_generic (first, first_alias); -- check for names found in the generic names list
URL=cfg.id_handlers['PMC'].prefix .. ID_list['PMC']; -- set url to be the same as the PMC external link if not embargoed
end
URLorigin = cfg.id_handlers['PMC'].parameters[1]; -- set URLorigin to parameter name for use in error message if citation is missing a |title=
local wl_type, D = utilities.is_wikilink (first);
if 0 ~= wl_type then
first = D;
utilities.set_message ('err_bad_paramlink', first_alias);
end
end
end
end


-- Account for the oddity that is {{cite conference}}, before generation of COinS data.
return last, first; -- done
if 'conference' == config.CitationClass then
end
if is_set(BookTitle) then
 
Chapter = Title;
-- ChapterLink = TitleLink; -- |chapterlink= is deprecated
ChapterURL = URL;
ChapterURLorigin = URLorigin;
URLorigin = '';
ChapterFormat = Format;
TransChapter = TransTitle;
Title = BookTitle;
Format = '';
-- TitleLink = '';
TransTitle = '';
URL = '';
end
else
Conference = ''; -- not cite conference so make sure this is empty string
end


-- Account for the oddity that is {{cite episode}}, before generation of COinS data.
--[[----------------------< E X T R A C T _ N A M E S >-------------------------
--[[ -- {{cite episode}} is not currently supported by this module
if config.CitationClass == "episode" then
local AirDate = A['AirDate'];
local SeriesLink = A['SeriesLink'];
local Season = A['Season'];
local SeriesNumber = A['SeriesNumber'];
local Network = A['Network'];
local Station = A['Station'];
local s, n = {}, {};
local Sep = (first_set(A["SeriesSeparator"], A["Separator"]) or "") .. " ";
if is_set(Issue) then table.insert(s, cfg.messages["episode"] .. " " .. Issue); Issue = ''; end
if is_set(Season) then table.insert(s, cfg.messages["season"] .. " " .. Season); end
if is_set(SeriesNumber) then table.insert(s, cfg.messages["series"] .. " " .. SeriesNumber); end
if is_set(Network) then table.insert(n, Network); end
if is_set(Station) then table.insert(n, Station); end
Date = Date or AirDate;
Chapter = Title;
ChapterLink = TitleLink;
TransChapter = TransTitle;
Title = Series;
TitleLink = SeriesLink;
TransTitle = '';
Series = table.concat(s, Sep);
ID = table.concat(n, Sep);
end
-- end of {{cite episode}} stuff]]


-- legacy: promote concatenation of |month=, and |year= to Date if Date not set; or, promote PublicationDate to Date if neither Date nor Year are set.
Gets name list from the input arguments
if is_set(Date) then
if is_set (Year) then
table.insert( z.maintenance_cats, "CS1 maint: Date and year"); -- add to maint category
end
else
Date = Year; -- promote Year to Date
Year = nil; -- make nil so Year as empty string isn't used for CITEREF
if is_set(Date) then
local Month = A['Month'];
if is_set(Month) then
Date = Month .. " " .. Date;
end
elseif is_set(PublicationDate) then -- use PublicationDate when |date= and |year= are not set
Date = PublicationDate; -- promote PublicationDate to Date
PublicationDate = ''; -- unset, no longer needed
end
end


if PublicationDate == Date then PublicationDate = ''; end -- if PublicationDate is same as Date, don't display in rendered citation
Searches 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't find |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.'
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 where
is stripped from the parameter and a flag (etal) returned that will cause list_people()
we get the date used in the metadata.
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, an error is emitted.


Date validation supporting code is in Module:Citation/CS1/Date_validation
]]
]]
anchor_year, COinS_date, error_message = dates({['accessdate']=AccessDate, ['airdate']=AirDate, ['archivedate']=ArchiveDate, ['date']=Date, ['doi_brokendate']=DoiBroken,
['embargo']=Embargo, ['laydate']=LayDate, ['publicationdate']=PublicationDate, ['year']=Year});
if is_set(error_message) then
table.insert( z.message_tail, { seterror( 'bad_date', {error_message}, true ) } ); -- add this error message
end


-- At this point fields may be nil if they weren't specified in the template use.  We can use that fact.
local function extract_names(args, list_name)
-- Test if citation has no title
local names = {}; -- table of names
if not is_set(Title) and
local last; -- individual name components
-- not is_set(Periodical) and -- not a title
local first;
-- not is_set(Conference) and -- not a title
local link;
not is_set(TransTitle) and
local mask;
not is_set(ScriptTitle) then
local i = 1; -- loop counter/indexer
table.insert( z.message_tail, { seterror( 'citation_missing_title', {}, true ) } );
local n = 1; -- output table indexer
local 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 parameter
 
local last_alias, first_alias, link_alias; -- selected parameter aliases used in error messaging
while true do
last, last_alias = utilities.select_one ( args, cfg.aliases[list_name .. '-Last'], 'err_redundant_parameters', i ); -- search through args for name components beginning at 1
first, first_alias = utilities.select_one ( args, cfg.aliases[list_name .. '-First'], 'err_redundant_parameters', i );
link, link_alias = utilities.select_one ( args, cfg.aliases[list_name .. '-Link'], 'err_redundant_parameters', i );
mask = utilities.select_one ( args, cfg.aliases[list_name .. '-Mask'], 'err_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, last_alias, first_alias); -- multiple names, extraneous annotation, etc. checks
 
if first and not last then -- if there is a firstn without a matching lastn
local alias = first_alias:find ('given', 1, true) and 'given' or 'first'; -- get first or given form of the alias
utilities.set_message ('err_first_missing_last', {
first_alias, -- param name of alias missing its mate
first_alias:gsub (alias, {['first'] = 'last', ['given'] = 'surname'}), -- make param name appropriate to the alias form
}); -- add this error message
elseif 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 first
if 2 <= count then -- two missing names and we give up
break; -- normal exit or there is a two-name hole in the list; can't tell which
end
else -- we have last with or without a first
local result;
link = link_title_ok (link, link_alias, last, last_alias); -- check for improper wiki-markup
 
if first then
link = link_title_ok (link, link_alias, first, first_alias); -- check for improper wiki-markup
end
 
names[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 table
if 1 == count then -- if the previous name was missing
utilities.set_message ('err_missing_name', {list_name:match ("(%w+)List"):lower(), i - 1}); -- add this error message
end
count = 0; -- reset the counter, we're looking for two consecutive missing names
end
i = i + 1; -- point to next args location
end
end
if 'none' == Title and is_set(Periodical) and not (( config.CitationClass == "encyclopaedia" ) or ( config.CitationClass == "citation" and is_set (Encyclopedia))) then -- special case
return names, etal; -- all done, return our list of names and the etal flag
Title = ''; -- set title to empty string
end
table.insert( z.maintenance_cats, "CS1 maint: Untitled periodical"); -- add to maint category
 
end


-- COinS metadata (see <http://ocoins.info/>) for automated parsing of citation information.
--[[--------------------------< N A M E _ T A G _ G E T >------------------------------------------------------
-- 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 required
local coins_title = Title; -- et tu
if 'encyclopaedia' == config.CitationClass or ('citation' == config.CitationClass and is_set (Encyclopedia)) then
if is_set (Chapter) and is_set (Title) and is_set (Periodical) then -- if all are used then
coins_chapter = Title; -- remap
coins_title = Periodical;
end
end
-- this is the function call to COinS()
local OCinSoutput = COinS{
['Periodical'] = Periodical,
['Chapter'] = strip_apostrophe_markup (coins_chapter), -- Chapter stripped of bold / italic wikimarkup
['Title'] = make_coins_title (coins_title, ScriptTitle), -- Title and ScriptTitle stripped of bold / italic wikimarkup
['PublicationPlace'] = PublicationPlace,
['Date'] = first_set(COinS_date, Date), -- COinS_date has correctly formatted date if Date is valid; any reason to keep Date here?  Should we be including invalid dates in metadata?
['Series'] = Series,
['Volume'] = Volume,
['Issue'] = Issue,
['Pages'] = get_coins_pages (first_set(Page, Pages, At)), -- pages stripped of external links
['Edition'] = Edition,
['PublisherName'] = PublisherName,
['URL'] = first_set( URL, ChapterURL ),
['Authors'] = a,
['ID_list'] = ID_list,
['RawPage'] = this_page.prefixedText,
};
--[[Why is this here?  Why are we mapping Title to Chapter when Periodical is set?
if is_set(Periodical) and not is_set(Chapter) and is_set(Title) then
Chapter = Title;
ChapterLink = TitleLink;
TransChapter = TransTitle;
Title = '';
TitleLink = '';
TransTitle = '';
end
]]


-- special case for cite newsgroup.  Do this after COinS because we are modifying Publishername to include some static text
attempt to decode |language=<lang_param> and return language name and matching tag; nil else.
if 'newsgroup' == config.CitationClass then
if is_set (PublisherName) then
PublisherName = '[[Newsgroup]]:&nbsp;' ..  externallink( 'news:' .. PublisherName, PublisherName );
end
end


This function looks for:
<lang_param> as a tag in cfg.lang_code_remap{}
<lang_param> as a name in cfg.lang_name_remap{}
<lang_param> as a name in cfg.mw_languages_by_name_t
<lang_param> as a tag in cfg.mw_languages_by_tag_t
when those fail, presume that <lang_param> is an IETF-like tag that MediaWiki does not recognize.  Strip all
script, region, variant, whatever subtags from <lang_param> to leave just a two or three character language tag
and look for the new <lang_param> in cfg.mw_languages_by_tag_t{}


on success, returns name (in properly capitalized form) and matching tag (in lowercase); on failure returns nil


-- Now perform various field substitutions.
]]
-- We also add leading spaces and surrounding markup and punctuation to the
-- various parts of the citation, but only when they are non-nil.
if not is_set(Authors) then
local Maximum = tonumber( A['DisplayAuthors'] );


if is_set (Maximum) then
local function name_tag_get (lang_param)
if Maximum >= #a then -- if display-authors value greater than or equal to number of authors
local lang_param_lc = mw.ustring.lower (lang_param); -- use lowercase as an index into the various tables
table.insert( z.maintenance_cats, "CS1 maint: display-authors"); -- add maintenance category because display-authors parameter may be removed
local name;
end
local tag;
else
Maximum = #a + 1; -- number of authors + 1
end


local control = {
name = cfg.lang_code_remap[lang_param_lc]; -- assume <lang_param_lc> is a tag; attempt to get remapped language name  
format = NameListFormat, -- empty string or 'vanc'
if name then -- when <name>, <lang_param> is a tag for a remapped language name
maximum = Maximum,
return name, lang_param_lc; -- so return <name> from remap and <lang_param_lc>
lastauthoramp = LastAuthorAmp,
page_name = this_page.text -- get current page name so that we don't wikilink to it via authorlinkn
};
-- If the coauthor field is also used, prevent ampersand and et al. formatting.
if is_set(Coauthors) then
control.lastauthoramp = nil;
control.maximum = #a + 1;
end
Authors = listpeople(control, a)
end
end


if not is_set(Authors) and is_set(Coauthors) then -- coauthors aren't displayed if one of authors=, authorn=, or lastn= isn't specified
tag = lang_param_lc:match ('^(%a%a%a?)%-.*'); -- still assuming that <lang_param_lc> is a tag; strip script, region, variant subtags
table.insert( z.message_tail, { seterror('coauthors_missing_author', {}, true) } ); -- emit error message
name = cfg.lang_code_remap[tag]; -- attempt to get remapped language name with language subtag only
if name then -- when <name>, <tag> is a tag for a remapped language name
return name, tag; -- so return <name> from remap and <tag>
end
end


local EditorCount
if cfg.lang_name_remap[lang_param_lc] then -- not a tag, assume <lang_param_lc> is a name; attempt to get remapped language tag
if not is_set(Editors) then
return cfg.lang_name_remap[lang_param_lc][1], cfg.lang_name_remap[lang_param_lc][2]; -- for this <lang_param_lc>, return a (possibly) new name and appropriate tag
local Maximum = tonumber( A['DisplayEditors'] );
end
-- Preserve old-style implicit et al.
if not is_set(Maximum) and #e == 4 then
Maximum = 3;
table.insert( z.message_tail, { seterror('implict_etal_editor', {}, true) } );
elseif not is_set(Maximum) then
Maximum = #e + 1;
end


local control = {
tag = cfg.mw_languages_by_name_t[lang_param_lc]; -- assume that <lang_param_lc> is a language name; attempt to get its matching tag
format = NameListFormat, -- empty string or 'vanc'
maximum = Maximum,
if tag then
lastauthoramp = LastAuthorAmp,
return cfg.mw_languages_by_tag_t[tag], tag; -- <lang_param_lc> is a name so return the name from the table and <tag>
page_name = this_page.text -- get current page name so that we don't wikilink to it via editorlinkn
end
};


Editors, EditorCount = listpeople(control, e);
name = cfg.mw_languages_by_tag_t[lang_param_lc]; -- assume that <lang_param_lc> is a tag; attempt to get its matching language name
else
EditorCount = 1;
if name then
return name, lang_param_lc; -- <lang_param_lc> is a tag so return it and <name>
end
end
tag = lang_param_lc:match ('^(%a%a%a?)%-.*'); -- is <lang_param_lc> an IETF-like tag that MediaWiki doesn't recognize? <tag> gets the language subtag; nil else


local Cartography = "";
if tag then
local Scale = "";
name = cfg.mw_languages_by_tag_t[tag]; -- attempt to get a language name using the shortened <tag>
if config.CitationClass == "map" then
if name then
if not is_set( Authors ) and is_set( PublisherName ) then
return name, tag; -- <lang_param_lc> is an unrecognized IETF-like tag so return <name> and language subtag
Authors = PublisherName;
PublisherName = "";
end
end
Cartography = A['Cartography'];
end
if is_set( Cartography ) then
end
Cartography = sepc .. " " .. wrap_msg ('cartography', Cartography, use_lowercase);
 
end
 
Scale = A['Scale'];
--[[-------------------< L A N G U A G E _ P A R A M E T E R >------------------
if is_set( Scale ) then
 
Scale = sepc .. " " .. Scale;
Gets language name from a provided two- or three-character ISO 639 code.  If a code
end
is recognized by MediaWiki, use the returned name; if not, then use the value that
end
was provided with the language parameter.
 
Format = is_set(Format) and " (" .. Format .. ")" or "";
When |language= contains a recognized language (either code or name), the page is
assigned to the category for that code: Category:Norwegian-language sources (no).
For valid three-character code languages, the page is assigned to 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-character equivalents 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 are separated from each other by commas with
optional space characters.
 
]]
 
local function language_parameter (lang)
local tag; -- some form of IETF-like language tag; language subtag with optional region, sript, vatiant, etc subtags
local lang_subtag; -- ve populates |language= with mostly unecessary region subtags the MediaWiki does not recognize; this is the base language subtag
local name; -- the language name
local language_list = {}; -- table of language names to be rendered
local names_t = {}; -- 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 name
 
names_t = mw.text.split (lang, '%s*,%s*'); -- names should be a comma separated list
 
for _, lang in ipairs (names_t) do -- reuse lang here because we don't yet know if lang is a language name or a language tag
name, tag = name_tag_get (lang); -- attempt to get name/tag pair for <lang>; <name> has proper capitalization; <tag> is lowercase
 
if utilities.is_set (tag) then
lang_subtag = tag:gsub ('^(%a%a%a?)%-.*', '%1'); -- for categorization, strip any IETF-like tags from language tag


if not is_set(URL) and
if cfg.this_wiki_code ~= lang_subtag then -- when the language is not the same as this wiki's language
not is_set(ArchiveURL) and
if 2 == lang_subtag:len() then -- and is a two-character tag
not is_set(ConferenceURL) and -- TODO: keep this here? conference as part of cite web or cite podcast?
-- utilities.add_prop_cat ('foreign-lang-source', {name, lang_subtag}, lang_subtag); -- categorize it; tag appended to allow for multiple language categorization
not is_set(TranscriptURL) then
utilities.add_prop_cat ('foreign-lang-source', {name, tag}, lang_subtag); -- categorize it; tag appended to allow for multiple language categorization
else -- or is a recognized language (but has a three-character tag)
-- Test if cite web or cite podcast |url= is missing or empty
utilities.add_prop_cat ('foreign-lang-source-2', {lang_subtag}, lang_subtag); -- categorize it differently TODO: support multiple three-character tag categories per cs1|2 template?
if inArray(config.CitationClass, {"web","podcast", "mailinglist"}) then
end
table.insert( z.message_tail, { seterror( 'cite_web_url', {}, true ) } );
elseif cfg.local_lang_cat_enable then -- when the language and this wiki's language are the same and categorization is enabled
utilities.add_prop_cat ('local-lang-source', {name, lang_subtag}); -- categorize it
end
else
name = lang; -- return whatever <lang> has so that we show something
utilities.set_message ('maint_unknown_lang'); -- add maint category if not already added
end
end
-- Test if accessdate is given without giving a URL
table.insert (language_list, name);
if is_set(AccessDate) and not is_set(ChapterURL)then -- ChapterURL may be set when the others are not set; TODO: move this to a separate test?
name = ''; -- so we can reuse it
table.insert( z.message_tail, { seterror( 'accessdate_missing_url', {}, true ) } );
end
AccessDate = '';
end
name = utilities.make_sep_list (#language_list, language_list);
if (1 == #language_list) and (lang_subtag == cfg.this_wiki_code) then -- when only one language, find lang name in this wiki lang name; for |language=en-us, 'English' in 'American English'
-- Test if format is given without giving a URL
return ''; -- if one language and that language is this wiki's return an empty string (no annotation)
if is_set(Format) then
Format = Format .. seterror( 'format_missing_url', {'format', 'url'} );
end
end
--[[
-- Test if citation has no title
if not is_set(Title) and
-- not is_set(Periodical) and -- not a title
-- not is_set(Conference) and -- not a title
not is_set(TransTitle) and
not is_set(ScriptTitle) then
table.insert( z.message_tail, { seterror( 'citation_missing_title', {}, true ) } );
end
if 'none' == Title and is_set(Periodical) then -- special case
Title = ''; -- set title to empty string
table.insert( z.maintenance_cats, "CS1 maint: Untitled periodical"); -- add to maint category
end
end
return (" " .. wrap_msg ('language', name)); -- otherwise wrap with '(in ...)'
--[[ TODO: should only return blank or name rather than full list
so we can clean up the bunched parenthetical elements Language, Type, Format
]]
end
--[[-----------------------< S E T _ C S _ S T Y L E >--------------------------
Gets the default CS style configuration for the given mode.
Returns default separator and either postscript as passed in or the default.
In CS1, the default postscript and separator are '.'.
In CS2, the default postscript is the empty string and the default separator is ','.
]]
]]
local OriginalURL;
 
DeadURL = DeadURL:lower(); -- used later when assembling archived text
local function set_cs_style (postscript, mode)
if is_set( ArchiveURL ) then
if utilities.is_set(postscript) then
if is_set (URL) then
-- emit a maintenance message if user postscript is the default cs1 postscript
OriginalURL = URL; -- save copy of original source URL
-- we catch the opposite case for cs2 in set_style
if 'no' ~= DeadURL then -- if URL set then archive-url applies to it
if mode == 'cs1' and postscript == cfg.presentation['ps_' .. mode] then
URL = ArchiveURL -- swap-in the archive's url
utilities.set_message ('maint_postscript');
URLorigin = A:ORIGIN('ArchiveURL') -- name of archive url parameter for error messages
end
elseif is_set (ChapterURL) then -- URL not set so if chapter-url is set apply archive url to it
OriginalURL = ChapterURL; -- save copy of source chapter's url for archive text
if 'no' ~= DeadURL then
ChapterURL = ArchiveURL -- swap-in the archive's url
URLorigin = A:ORIGIN('ArchiveURL') -- name of archive url parameter for error messages
end
end
end
else
postscript = cfg.presentation['ps_' .. mode];
end
end
return cfg.presentation['sep_' .. mode], postscript;
end
--[[--------------------------< S E T _ S T Y L E >-----------------------------
Sets the separator and postscript styles. Checks the |mode= first and the
#invoke CitationClass second. Removes the postscript if postscript == none.


if inArray(config.CitationClass, {"web","news","journal","pressrelease","podcast", "newsgroup"}) or
]]
('citation' == config.CitationClass and is_set (Periodical) and not is_set (Encyclopedia)) then
if is_set (Chapter) or is_set (TransChapter) or is_set (ChapterURL)then -- chapter parameters not supported for these citation types
table.insert( z.message_tail, { seterror( 'chapter_ignored', {}, true ) } ); -- add error message
Chapter = ''; -- set to empty string to be safe with concatenation
TransChapter = '';
ChapterURL = '';
end
else -- otherwise, format chapter / article title
Chapter = format_chapter_title (Chapter, TransChapter, ChapterURL, ChapterURLorigin);
if is_set (Chapter) then
ChapterFormat = is_set(ChapterFormat) and " (" .. ChapterFormat .. ")" or "";
if is_set(ChapterFormat) and not is_set (ChapterURL) then -- Test if |chapter-format= is given without giving a |chapter-url=
ChapterFormat = ChapterFormat .. seterror( 'format_missing_url', {'chapter-format', 'chapter-url'} );
end
Chapter = Chapter .. ChapterFormat .. sepc .. ' ';
end
end


-- Format main title.
local function set_style (mode, postscript, cite_class)
if is_set(TitleLink) and is_set(Title) then
local sep;
Title = "[[" .. TitleLink .. "|" .. Title .. "]]"
if 'cs2' == mode then
end
sep, postscript = set_cs_style (postscript, 'cs2');
 
elseif 'cs1' == mode then
if inArray(config.CitationClass, {"web","news","journal","pressrelease","podcast", "newsgroup", "mailinglist"}) or
sep, postscript = set_cs_style (postscript, 'cs1');
('citation' == config.CitationClass and is_set (Periodical) and not is_set (Encyclopedia)) then
elseif 'citation' == cite_class then
Title = kern_quotes (Title); -- if necessary, separate title's leading and trailing quote marks from Module provided quote marks
sep, postscript = set_cs_style (postscript, 'cs2');
Title = wrap_style ('quoted-title', Title);
Title = script_concatenate (Title, ScriptTitle); -- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrapped
TransTitle= wrap_style ('trans-quoted-title', TransTitle );
elseif 'report' == config.CitationClass then -- no styling for cite report
Title = script_concatenate (Title, ScriptTitle); -- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrapped
TransTitle= wrap_style ('trans-quoted-title', TransTitle ); -- for cite report, use this form for trans-title
else
else
Title = wrap_style ('italic-title', Title);
sep, postscript = set_cs_style (postscript, 'cs1');
Title = script_concatenate (Title, ScriptTitle); -- <bdi> tags, lang atribute, categorization, etc; must be done after title is wrapped
TransTitle = wrap_style ('trans-italic-title', TransTitle);
end
end


TransError = "";
if cfg.keywords_xlate[postscript:lower()] == 'none' then
if is_set(TransTitle) then
-- emit a maintenance message if user postscript is the default cs2 postscript
if is_set(Title) then
-- we catch the opposite case for cs1 in set_cs_style
TransTitle = " " .. TransTitle;
if 'cs2' == mode or 'citation' == cite_class then
else
utilities.set_message ('maint_postscript');
TransError = " " .. seterror( 'trans_missing_title' );
end
end
postscript = '';
end
end
Title = Title .. TransTitle;
return sep, postscript
end
if is_set(Title) then
 
if not is_set(TitleLink) and is_set(URL) then
 
Title = externallink( URL, Title ) .. TransError .. Format  
--[=[-------------------------< I S _ P D F >-----------------------------------
URL = "";
 
Format = "";
Determines if a URL has the file extension that is one of the PDF file extensions
else
used by [[MediaWiki:Common.css]] when applying the PDF icon to external links.
Title = Title .. TransError;
 
end
returns true if file extension is one of the recognized extensions, else false
end


if is_set(Place) then
]=]
Place = " " .. wrap_msg ('written', Place, use_lowercase) .. sepc .. " ";
 
end
local function is_pdf (url)
return url:match ('%.pdf$') or url:match ('%.PDF$') or
if is_set(Conference) then
url:match ('%.pdf[%?#]') or url:match ('%.PDF[%?#]') or
if is_set(ConferenceURL) then
url:match ('%.PDF&#035') or url:match ('%.pdf&#035');
Conference = externallink( ConferenceURL, Conference );
end
end
 
Conference = sepc .. " " .. Conference
 
elseif is_set(ConferenceURL) then
--[[--------------------------< S T Y L E _ F O R M A T >-----------------------
Conference = sepc .. " " .. externallink( ConferenceURL, nil, ConferenceURLorigin );
 
end
Applies CSS style to |format=, |chapter-format=, etc.  Also emits an error message
if the format parameter does not have a matching URL parameter.  If the format parameter
if not is_set(Position) then
is not set and the URL contains a file extension that is recognized as a PDF document
local Minutes = A['Minutes'];
by MediaWiki's commons.css, this code will set the format parameter to (PDF) with
if is_set(Minutes) then
the appropriate styling.
Position = " " .. Minutes .. " " .. cfg.messages['minutes'];
 
else
]]
local Time = A['Time'];
 
if is_set(Time) then
local function style_format (format, url, fmt_param, url_param)
local TimeCaption = A['TimeCaption']
if utilities.is_set (format) then
if not is_set(TimeCaption) then
format = utilities.wrap_style ('format', format); -- add leading space, parentheses, resize
TimeCaption = cfg.messages['event'];
if not utilities.is_set (url) then
if sepc ~= '.' then
utilities.set_message ('err_format_missing_url', {fmt_param, url_param}); -- add an error message
TimeCaption = TimeCaption:lower();
end
end
Position = " " .. TimeCaption .. " " .. Time;
end
end
end
elseif is_pdf (url) then -- format is not set so if URL is a PDF file then
format = utilities.wrap_style ('format', 'PDF'); -- set format to PDF
else
else
Position = " " .. Position;
format = ''; -- empty string for concatenation
At = '';
end
end
return format;
if not is_set(Page) then
end
if is_set(Pages) then
 
if is_set(Periodical) and
 
not inArray(config.CitationClass, {"encyclopaedia","web","book","news","podcast"}) then
--[[---------------------< G E T _ D I S P L A Y _ N A M E S >------------------
Pages = ": " .. Pages;
elseif tonumber(Pages) ~= nil then
Pages = sepc .." " .. PPrefix .. Pages;
else
Pages = sepc .." " .. PPPrefix .. Pages;
end
end
else
if is_set(Periodical) and
not inArray(config.CitationClass, {"encyclopaedia","web","book","news","podcast"}) then
Page = ": " .. Page;
else
Page = sepc .." " .. PPrefix .. Page;
end
end
At = is_set(At) and (sepc .. " " .. At) or "";
Position = is_set(Position) and (sepc .. " " .. Position) or "";
if config.CitationClass == 'map' then
local Section = A['Section'];
local Inset = A['Inset'];
if first_set( Pages, Page, At ) ~= nil or sepc ~= '.' then
if is_set( Section ) then
Section = ", " .. wrap_msg ('section', Section, true);
end
if is_set( Inset ) then
Inset = ", " .. wrap_msg ('inset', Inset, true);
end
else
if is_set( Section ) then
Section = sepc .. " " .. wrap_msg ('section', Section, use_lowercase);
if is_set( Inset ) then
Inset = ", " .. wrap_msg ('inset', Inset, true);
end
elseif is_set( Inset ) then
Inset = sepc .. " " .. wrap_msg ('inset', Inset, use_lowercase);
end
end
At = At .. Section .. Inset;
end


if is_set (Language) then
Returns a number that defines the number of names displayed for author and editor
Language = language_parameter (Language, this_page.namespace); -- format, categories (article namespace only), name from ISO639-1, etc
name lists and a Boolean flag to indicate when et al. should be appended to the name list.
else
Language=""; -- language not specified so make sure this is an empty string;
end


Others = is_set(Others) and (sepc .. " " .. Others) or "";
When the value assigned to |display-xxxxors= is a number greater than or equal to zero,
return the number and the previous state of the 'etal' flag (false by default
but may have been set to true if the name list contains some variant of the text 'et al.').


-- handle type parameter for those CS1 citations that have default values
When the value assigned to |display-xxxxors= is the keyword 'etal', return a number
that is one greater than the number of authors in the list and set the 'etal' flag true.
This will cause the list_people() to display all of the names in the name list followed by 'et al.'


if inArray(config.CitationClass, {"AV-media-notes", "DVD-notes", "mailinglist", "podcast", "pressrelease", "report", "techreport", "thesis"}) then
In all other cases, returns nil and the previous state of the 'etal' flag.
TitleType = set_titletype (config.CitationClass, TitleType);
if is_set(Degree) and "دانش‌نامه" == TitleType then -- special case for cite thesis
TitleType = Degree .. " thesis";
end
end


if is_set(TitleType) then -- if type parameter is specified
inputs:
TitleType = " (" .. TitleType .. ")"; -- display it in parentheses
max: A['DisplayAuthors'] or A['DisplayEditors']; a number or some flavor of etal
end
count: #a or #e
list_name: 'authors' or 'editors'
etal: author_etal or editor_etal


TitleNote = is_set(TitleNote) and (sepc .. " " .. TitleNote) or "";
]]
Edition = is_set(Edition) and (" " .. wrap_msg ('edition', Edition)) or "";
Issue = is_set(Issue) and (" (" .. Issue .. ")") or "";
Series = is_set(Series) and (sepc .. " " .. Series) or "";
OrigYear = is_set(OrigYear) and (" [" .. OrigYear .. "]") or "";
Agency = is_set(Agency) and (sepc .. " " .. Agency) or "";


if is_set(Volume) then
local function get_display_names (max, count, list_name, etal, param)
if ( mw.ustring.len(Volume) > 4 )
if utilities.is_set (max) then
  then Volume = sepc .." " .. Volume;
if 'etal' == max:lower():gsub("[ '%.]", '') then -- the :gsub() portion makes 'etal' from a variety of 'et al.' spellings and stylings
  else Volume = " <b>" .. hyphentodash(Volume) .. "</b>";
max = 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 numbers
max = tonumber (max); -- make it a number
if max >= count then -- if |display-xxxxors= value greater than or equal to number of authors/editors
utilities.set_message ('err_disp_name', {param, max}); -- add error message
max = nil;
end
else -- not a valid keyword or number
utilities.set_message ('err_disp_name', {param, max}); -- add error message
max = nil; -- unset; as if |display-xxxxors= had not been set
end
end
end
end
return max, etal;
end
--[[----------< E X T R A _ T E X T _ I N _ P A G E _ C H E C K >---------------


------------------------------------ totally unrelated data
Adds error if |page=, |pages=, |quote-page=, |quote-pages= has what appears to be
if is_set(Via) then
some form of p. or pp. abbreviation in the first characters of the parameter content.
Via = " " .. wrap_msg ('via', Via);
end


--[[
check page for extraneous p, p., pp, pp., pg, pg. at start of parameter value:
Subscription implies paywall; Registration does not.  If both are used in a citation, the subscription required link
good pattern: '^P[^%.P%l]' matches when page begins PX or P# but not Px
note is displayed. There are no error messages for this condition.
      where x and X are letters and # is a digit
bad pattern:  '^[Pp][PpGg]' matches when page begins pp, pP, Pp, PP, pg, pG, Pg, PG


]]
]]
if inArray(SubscriptionRequired:lower(), {'yes', 'true', 'y'}) then
SubscriptionRequired = sepc .. " " .. cfg.messages['subscription']; -- subscription required message
elseif inArray(RegistrationRequired:lower(), {'yes', 'true', 'y'}) then
SubscriptionRequired = sepc .. " " .. cfg.messages['registration']; -- registration required message
else
SubscriptionRequired = ''; -- either or both might be set to something other than yes true y
end


if is_set(AccessDate) then
local function extra_text_in_page_check (val, name)
local retrv_text = " " .. cfg.messages['retrieved']
if not val:match (cfg.vol_iss_pg_patterns.good_ppattern) then
for _, pattern in ipairs (cfg.vol_iss_pg_patterns.bad_ppatterns) do -- spin through the selected sequence table of patterns
if val:match (pattern) then -- when a match, error so
utilities.set_message ('err_extra_text_pages', name); -- add error message
return; -- and done
end
end
end
end
 
 
--[[--------------------------< E X T R A _ T E X T _ I N _ V O L _ I S S _ C H E C K >------------------------
 
Adds error if |volume= or |issue= has what appears to be some form of redundant 'type' indicator.
 
For |volume=:
'V.', or 'Vol.' (with or without the dot) abbreviations or 'Volume' in the first characters of the parameter
content (all case insensitive). 'V' and 'v' (without the dot) are presumed to be roman numerals so
are allowed.


AccessDate = nowrap_date (AccessDate); -- wrap in nowrap span if date in appropriate format
For |issue=:
if (sepc ~= ".") then retrv_text = retrv_text:lower() end -- if 'citation', lower case
'No.', 'I.', 'Iss.' (with or without the dot) abbreviations, or 'Issue' in the first characters of the
AccessDate = substitute (retrv_text, AccessDate); -- add retrieved text
parameter content (all case insensitive).
-- neither of these work; don't know why; it seems that substitute() isn't being called
AccessDate = substitute (cfg.presentation['accessdate'], {sepc, AccessDate}); -- allow editors to hide accessdates
Single character values ('v', 'i', 'n') allowed when not followed by separator character ('.', ':', '=', or
end
whitespace character) – param values are trimmed of whitespace by MediaWiki before delivered to the module.
if is_set(ID) then ID = sepc .." ".. ID; end
<val> is |volume= or |issue= parameter value
  if "thesis" == config.CitationClass and is_set(Docket) then
<name> is |volume= or |issue= parameter name for error message
ID = sepc .." Docket ".. Docket .. ID;
<selector> is 'v' for |volume=, 'i' for |issue=
end
 
  if "report" == config.CitationClass and is_set(Docket) then -- for cite report when |docket= is set
sets error message on failure; returns nothing
ID = sepc .. ' ' .. Docket; -- overwrite ID even if |id= is set
end


ID_list = buildidlist( ID_list, {DoiBroken = DoiBroken, ASINTLD = ASINTLD, IgnoreISBN = IgnoreISBN, Embargo=Embargo} );
]]


if is_set(URL) then
local function extra_text_in_vol_iss_check (val, name, selector)
URL = " " .. externallink( URL, nil, URLorigin );
if not utilities.is_set (val) then
return;
end
end
local patterns = 'v' == selector and cfg.vol_iss_pg_patterns.vpatterns or cfg.vol_iss_pg_patterns.ipatterns;


if is_set(Quote) then
local handler = 'v' == selector and 'err_extra_text_volume' or 'err_extra_text_issue';
if Quote:sub(1,1) == '"' and Quote:sub(-1,-1) == '"' then
val = val:lower(); -- force parameter value to lower case
Quote = Quote:sub(2,-2);
for _, pattern in ipairs (patterns) do -- spin through the selected sequence table of patterns
if val:match (pattern) then -- when a match, error so
utilities.set_message (handler, name); -- add error message
return; -- and done
end
end
Quote = sepc .." " .. wrap_style ('quoted-text', Quote ); -- wrap in <q>...</q> tags
PostScript = ""; -- CS1 does not supply terminal punctuation when |quote= is set
end
end
end
local Archived
 
if is_set(ArchiveURL) then
 
if not is_set(ArchiveDate) then
--[=[-------------------------< G E T _ V _ N A M E _ T A B L E >----------------------------------------------
ArchiveDate = seterror('archive_missing_date');
 
end
split apart a |vauthors= or |veditors= parameter.  This function allows for corporate names, wrapped in doubled
if "no" == DeadURL then
parentheses to also have commas; in the old version of the code, the doubled parentheses were included in the
local arch_text = cfg.messages['archived'];
rendered citation and in the metadata.  Individual author names may be wikilinked
if sepc ~= "." then arch_text = arch_text:lower() end
 
Archived = sepc .. " " .. substitute( cfg.messages['archived-not-dead'],
|vauthors=Jones AB, [[E. B. White|White EB]], ((Black, Brown, and Co.))
{ externallink( ArchiveURL, arch_text ), ArchiveDate } );
 
if not is_set(OriginalURL) then
]=]
Archived = Archived .. " " .. seterror('archive_missing_url');  
 
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 commas
local wl_type, label, link; -- wl_type not used here; just a placeholder
local i = 1;
while name_table[i] do
if name_table[i]:match ('^%(%(.*[^%)][^%)]$') then -- first segment of corporate with one or more commas; this segment has the opening doubled parentheses
local name = name_table[i];
i = i + 1; -- bump indexer to next segment
while name_table[i] do
name = name .. ', ' .. name_table[i]; -- concatenate with previous segments
if name_table[i]:match ('^.*%)%)$') then -- if this table member has the closing doubled parentheses
break; -- and done reassembling so
end
i = i + 1; -- bump indexer
end
end
elseif is_set(OriginalURL) then
table.insert (output_table, name); -- and add corporate name to the output table
local arch_text = cfg.messages['archived-dead'];
table.insert (output_link_table, ''); -- no wikilink
if sepc ~= "." then arch_text = arch_text:lower() end
Archived = sepc .. " " .. substitute( arch_text,
{ externallink( OriginalURL, cfg.messages['original'] ), ArchiveDate } );
else
else
local arch_text = cfg.messages['archived-missing'];
wl_type, label, link = utilities.is_wikilink (name_table[i]); -- wl_type is: 0, no wl (text in label variable); 1, [[D]]; 2, [[L|D]]
if sepc ~= "." then arch_text = arch_text:lower() end
table.insert (output_table, label); -- add this name
Archived = sepc .. " " .. substitute( arch_text,  
if 1 == wl_type then
{ seterror('archive_missing_url'), ArchiveDate } );
table.insert (output_link_table, label); -- simple wikilink [[D]]
else
table.insert (output_link_table, link); -- no wikilink or [[L|D]]; add this link if there is one, else empty string
end
end
end
else
i = i + 1;
Archived = ""
end
end
return output_table;
end
local Lay
 
if is_set(LayURL) then
 
if is_set(LayDate) then LayDate = " (" .. LayDate .. ")" end
--[[--------------------------< P A R S E _ V A U T H O R S _ V E D I T O R S >--------------------------------
if is_set(LaySource) then  
 
LaySource = " &ndash; ''" .. safeforitalics(LaySource) .. "''";
This function extracts author / editor names from |vauthors= or |veditors= and finds matching |xxxxor-maskn= and
else
|xxxxor-linkn= in args.  It then returns a table of assembled names just as extract_names() does.
LaySource = "";
 
Author / editor names in |vauthors= or |veditors= must be in Vancouver system style. Corporate or institutional names
may sometimes be required and because such names will often fail the is_good_vanc_name() and other format compliance
tests, are wrapped in doubled parentheses ((corporate name)) to suppress the format tests.
 
Supports generational suffixes Jr, 2nd, 3rd, 4th–6th.
 
This function sets the Vancouver error when a required 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 table
local etal = false; -- return value set to true when we find some form of et al. vauthors parameter
local 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 commas
 
for i, v_name in ipairs(v_name_table) do
first = ''; -- set to empty string for concatenation and because it may have been set for previous author/editor
local accept_name;
v_name, accept_name = utilities.has_accept_as_written (v_name); -- remove accept-this-as-written markup when it wraps all of <v_name>
 
if accept_name then
last = v_name;
corporate = true; -- flag used in list_people()
elseif string.find(v_name, "%s") then
if v_name:find('[;%.]') then -- look for commonly occurring punctuation characters;
add_vanc_error (cfg.err_msg_supl.punctuation, i);
end
local lastfirstTable = {}
lastfirstTable = mw.text.split(v_name, "%s+")
first = table.remove(lastfirstTable); -- removes and returns value of last element in table which should be initials or generational suffix
 
if not mw.ustring.match (first, '^%u+$') then -- mw.ustring here so that later we will catch non-Latin characters
suffix = first; -- not initials so assume that whatever we got is a generational suffix
first = table.remove(lastfirstTable); -- get what should be the initials from the table
end
last = table.concat(lastfirstTable, ' ') -- returns a string that is the concatenation of all other names that are not initials and generational suffix
if not utilities.is_set (last) then
first = ''; -- unset
last = v_name; -- last empty because something wrong with first
add_vanc_error (cfg.err_msg_supl.name, i);
end
if mw.ustring.match (last, '%a+%s+%u+%s+%a+') then
add_vanc_error (cfg.err_msg_supl['missing comma'], i); -- matches last II last; the case when a comma is missing
end
if mw.ustring.match (v_name, ' %u %u$') then -- this test is in the wrong place TODO: move or replace with a more appropriate test
add_vanc_error (cfg.err_msg_supl.initials, i); -- matches a space between two initials
end
else
last = v_name; -- last name or single corporate name?  Doesn't support multiword corporate names? do we need this?
end
end
if sepc == '.' then
Lay = sepc .. " " .. externallink( LayURL, cfg.messages['lay summary'] ) .. LaySource .. LayDate
if utilities.is_set (first) then
if not mw.ustring.match (first, "^%u?%u$") then -- first shall contain one or two upper-case letters, nothing else
add_vanc_error (cfg.err_msg_supl.initials, i); -- too many initials; mixed case initials (which may be ok Romanization); hyphenated initials
end
is_good_vanc_name (last, first, suffix, i); -- check first and last before restoring the suffix which may have a non-Latin digit
if utilities.is_set (suffix) then
first = first .. ' ' .. suffix; -- if there was a suffix concatenate with the initials
suffix = ''; -- unset so we don't add this suffix to all subsequent names
end
else
else
Lay = sepc .. " " .. externallink( LayURL, cfg.messages['lay summary']:lower() ) .. LaySource .. LayDate
if not corporate then
end
is_good_vanc_name (last, '', nil, i);
else
end
Lay = "";
end
 
link = utilities.select_one ( args, cfg.aliases[list_name .. '-Link'], 'err_redundant_parameters', i ) or v_link_table[i];
mask = utilities.select_one ( args, cfg.aliases[list_name .. '-Mask'], 'err_redundant_parameters', i );
names[i] = {last = last, first = first, link = link, mask = mask, corporate = corporate}; -- add this assembled name to our names list
end
end
return names, etal; -- all done, return our list of names
if is_set(Transcript) then
end
if is_set(TranscriptURL) then Transcript = externallink( TranscriptURL, Transcript ); end
 
elseif is_set(TranscriptURL) then
 
Transcript = externallink( TranscriptURL, nil, TranscriptURLorigin );
--[[--------------------------< 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 or
select one of |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;
|editorn= (and aliases) highest and |veditors= lowest (support for |editors= withdrawn)
 
When looking for |authorn= / |editorn= parameters, test |xxxxor1= and |xxxxor2= (and all of their aliases); stops after the second
test which mimicks the test used in extract_names() when looking for a hole in the author name list.  There may be a better
way 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 as appropriate.
 
]]
 
local function select_author_editor_source (vxxxxors, xxxxors, args, list_name)
local lastfirst = false;
if utilities.select_one ( args, cfg.aliases[list_name .. '-Last'], 'none', 1 ) or -- do this twice in case we have a |first1= without a |last1=; this ...
utilities.select_one ( args, cfg.aliases[list_name .. '-First'], 'none', 1 ) or -- ... also catches the case where |first= is used with |vauthors=
utilities.select_one ( args, cfg.aliases[list_name .. '-Last'], 'none', 2 ) or
utilities.select_one ( args, cfg.aliases[list_name .. '-First'], 'none', 2 ) then
lastfirst = true;
end
end
 
local Publisher;
if (utilities.is_set (vxxxxors) and true == lastfirst) or -- these are the three error conditions
if is_set(Periodical) and
(utilities.is_set (vxxxxors) and utilities.is_set (xxxxors)) or
not inArray(config.CitationClass, {"encyclopaedia","web","pressrelease","podcast"}) then
(true == lastfirst and utilities.is_set (xxxxors)) then
if is_set(PublisherName) then
local err_name;
if is_set(PublicationPlace) then
if 'AuthorList' == list_name then -- figure out which name should be used in error message
Publisher = PublicationPlace .. ": " .. PublisherName;
err_name = 'author';
else
Publisher = PublisherName; 
end
elseif is_set(PublicationPlace) then
Publisher= PublicationPlace;
else
Publisher = "";
end
if is_set(PublicationDate) then
if is_set(Publisher) then
Publisher = Publisher .. ", " .. wrap_msg ('published', PublicationDate);
else
else
Publisher = PublicationDate;
err_name = 'editor';
end
end
end
utilities.set_message ('err_redundant_parameters', err_name .. '-name-list parameters'); -- add error message
if is_set(Publisher) then
Publisher = " (" .. Publisher .. ")";
end
else
if is_set(PublicationDate) then
PublicationDate = " (" .. wrap_msg ('published', PublicationDate) .. ")";
end
if is_set(PublisherName) then
if is_set(PublicationPlace) then
Publisher = sepc .. " " .. PublicationPlace .. ": " .. PublisherName .. PublicationDate;
else
Publisher = sepc .. " " .. PublisherName .. PublicationDate; 
end
elseif is_set(PublicationPlace) then
Publisher= sepc .. " " .. PublicationPlace .. PublicationDate;
else
Publisher = PublicationDate;
end
end
-- Several of the above rely upon detecting this as nil, so do it last.
if is_set(Periodical) then
if is_set(Title) or is_set(TitleNote) then
Periodical = sepc .. " " .. wrap_style ('italic-title', Periodical)
else
Periodical = wrap_style ('italic-title', Periodical)
end
end
end


--[[
if true == lastfirst then return 1 end; -- return a number indicating which author name source to use
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 that
if utilities.is_set (vxxxxors) then return 2 end;
the annotation directly follows the |title= parameter value in the citation rather than the |event= parameter value (if provided).
if utilities.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 number
of allowable values (yes, y, true, live, dead, etc.).  When the parameter value has not been assigned a value (missing
or empty in the source template) the function returns the value specified by ret_val.  If the parameter value is one
of the list of allowed values returns the translated value; else, emits an error message and returns the value
specified by ret_val.
 
TODO: explain <invert>
 
]]
]]
if "speech" == config.CitationClass then -- cite speech only
 
TitleNote = " (Speech)"; -- annotate the citation
local function is_valid_parameter_value (value, name, possible, ret_val, invert)
if is_set (Periodical) then -- if Periodical, perhaps because of an included |website= or |journal= parameter  
if not utilities.is_set (value) then
if is_set (Conference) then -- and if |event= is set
return ret_val; -- an empty parameter is ok
Conference = Conference .. sepc .. " "; -- then add appropriate punctuation to the end of the Conference variable before rendering
end
end
end
end


-- Piece all bits together at last. Here, all should be non-nil.
if (not invert and utilities.in_array (value, possible)) then -- normal; <value> is in <possible> table
-- We build things this way because it is more efficient in LUA
return cfg.keywords_xlate[value]; -- return translation of parameter keyword
-- not to keep reassigning to the same string variable over and over.
elseif invert and not utilities.in_array (value, possible) then -- invert; <value> is not in <possible> table
 
return value; -- return <value> as it is
local tcommon
if inArray(config.CitationClass, {"journal","citation"}) and is_set(Periodical) then
if is_set(Others) then Others = Others .. sepc .. " " end
tcommon = safejoin( {Others, Title, TitleNote, Conference, Periodical, Format, TitleType, Scale, Series,
Language, Cartography, Edition, Publisher, Agency, Volume, Issue}, sepc );
else
tcommon = safejoin( {Title, TitleNote, Conference, Periodical, Format, TitleType, Scale, Series, Language,
Volume, Issue, Others, Cartography, Edition, Publisher, Agency}, sepc );
end
if #ID_list > 0 then
ID_list = safejoin( { sepc .. " ",  table.concat( ID_list, sepc .. " " ), ID }, sepc );
else
else
ID_list = ID;
utilities.set_message ('err_invalid_param_val', {name, value}); -- not an allowed value so add error message
return ret_val;
end
end
end
--[[--------------------------< 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 space
when the last character is not a sepc character or when the last three characters are not sepc followed by two
closing square brackets (close of a wikilink).  When either of these is true, the name_list is terminated with a
single space character.
]]
local function terminate_name_list (name_list, sepc)
if (string.sub (name_list, -3, -1) == sepc .. '. ') then -- if already properly terminated
return name_list; -- just return the name list
elseif (string.sub (name_list, -1, -1) == sepc) or (string.sub (name_list, -3, -1) == sepc .. ']]') then -- if last name in list ends with sepc char
return name_list .. " "; -- don't add another
else
return name_list .. sepc .. ' '; -- otherwise terminate the name list
end
end
--[[-------------------------< 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 volume
or formatted issue, or an empty string if neither are set.
]]
local function format_volume_issue (volume, issue, cite_class, origin, sepc, lower)
if not utilities.is_set (volume) and not utilities.is_set (issue) then
return '';
end
-- same condition as in format_pages_sheets()
local is_journal = 'journal' == cite_class or (utilities.in_array (cite_class, {'citation', 'map', 'interview'}) and 'journal' == origin);
local is_numeric_vol = volume and (volume:match ('^[MDCLXVI]+$') or volume:match ('^%d+$')); -- is only uppercase roman numerals or only digits?
local is_long_vol = volume and (4 < mw.ustring.len(volume)); -- is |volume= value longer than 4 characters?
local idcommon = safejoin( { ID_list, URL, Archived, AccessDate, Via, SubscriptionRequired, Lay, Quote }, sepc );
if volume and (not is_numeric_vol and is_long_vol) then -- when not all digits or Roman numerals, is |volume= longer than 4 characters?
local text;
utilities.add_prop_cat ('long-vol'); -- yes, add properties cat
local pgtext = Position .. Page .. Pages .. At;
end
 
if is_set(Authors) then
if is_journal then -- journal-style formatting
if is_set(Coauthors) then
local vol = '';
local sep = '; ';
if 'vanc' == NameListFormat then
if utilities.is_set (volume) then
sep = ', ';
if is_numeric_vol then -- |volume= value all digits or all uppercase Roman numerals?
vol = utilities.substitute (cfg.presentation['vol-bold'], {sepc, volume}); -- render in bold face
elseif is_long_vol then -- not all digits or Roman numerals; longer than 4 characters?
vol = utilities.substitute (cfg.messages['j-vol'], {sepc, utilities.hyphen_to_dash (volume)}); -- not bold
else -- four or fewer characters
vol = utilities.substitute (cfg.presentation['vol-bold'], {sepc, utilities.hyphen_to_dash (volume)}); -- bold
end
end
Authors = Authors .. sep .. Coauthors;
end
end
if is_set(Date) then
if utilities.is_set (issue) then
Date = " ("..Date..")" .. OrigYear .. sepc .. " "
return vol .. utilities.substitute (cfg.messages['j-issue'], issue);
elseif string.sub(Authors,-1,-1) == sepc then
Authors = Authors .. " "
else
Authors = Authors .. sepc .. " "
end
end
if is_set(Editors) then
return vol;
local in_text = " ";
end
local post_text = "";
if is_set(Chapter) then
if 'podcast' == cite_class and utilities.is_set (issue) then
in_text = in_text .. cfg.messages['in'] .. " "
return wrap_msg ('issue', {sepc, issue}, lower);
end
 
-- all other types of citation
if utilities.is_set (volume) and utilities.is_set (issue) then
return wrap_msg ('vol-no', {sepc, utilities.hyphen_to_dash (volume), issue}, lower);
elseif utilities.is_set (volume) then
return wrap_msg ('vol', {sepc, utilities.hyphen_to_dash (volume)}, lower);
else
return wrap_msg ('issue', {sepc, issue}, lower);
end
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, sheets
 
Singular 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 locators
if utilities.is_set (sheet) then
if 'journal' == origin then
return '', '', wrap_msg ('j-sheet', sheet, lower), '';
else
else
if EditorCount <= 1 then
return '', '', wrap_msg ('sheet', {sepc, sheet}, lower), '';
post_text = ", " .. cfg.messages['editor'];
else
post_text = ", " .. cfg.messages['editors'];
end
end
if (sepc ~= '.') then in_text = in_text:lower() end
Editors = in_text .. Editors .. post_text;
if (string.sub(Editors,-1,-1) == sepc)
then Editors = Editors .. " "
else Editors = Editors .. sepc .. " "
end
end
end
elseif utilities.is_set (sheets) then
text = safejoin( {Authors, Date, Chapter, Place, Editors, tcommon }, sepc );
if 'journal' == origin then
text = safejoin( {text, pgtext, idcommon}, sepc );
return '', '', '', wrap_msg ('j-sheets', sheets, lower);
elseif is_set(Editors) then
if is_set(Date) then
if EditorCount <= 1 then
Editors = Editors .. ", " .. cfg.messages['editor'];
else
else
Editors = Editors .. ", " .. cfg.messages['editors'];
return '', '', '', wrap_msg ('sheets', {sepc, sheets}, lower);
end
end
Date = " (" .. Date ..")" .. OrigYear .. sepc .. " "
end
end
 
local is_journal = 'journal' == cite_class or (utilities.in_array (cite_class, {'citation', 'map', 'interview'}) and 'journal' == origin);
if utilities.is_set (page) then
if is_journal then
return utilities.substitute (cfg.messages['j-page(s)'], page), '', '', '';
elseif not nopp then
return utilities.substitute (cfg.messages['p-prefix'], {sepc, page}), '', '', '';
else
else
if EditorCount <= 1 then
return utilities.substitute (cfg.messages['nopp'], {sepc, page}), '', '', '';
Editors = Editors .. " (" .. cfg.messages['editor'] .. ")" .. sepc .. " "
end
else
elseif utilities.is_set (pages) then
Editors = Editors .. " (" .. cfg.messages['editors'] .. ")" .. sepc .. " "
if is_journal then
end
return utilities.substitute (cfg.messages['j-page(s)'], pages), '', '', '';
end
elseif tonumber(pages) ~= nil and not nopp then -- if pages is only digits, assume a single page number
text = safejoin( {Editors, Date, Chapter, Place, tcommon}, sepc );
return '', utilities.substitute (cfg.messages['p-prefix'], {sepc, pages}), '', '';
text = safejoin( {text, pgtext, idcommon}, sepc );
elseif not nopp then
else
return '', utilities.substitute (cfg.messages['pp-prefix'], {sepc, pages}), '', '';
if is_set(Date) then
if ( string.sub(tcommon,-1,-1) ~= sepc )
  then Date = sepc .." " .. Date .. OrigYear
  else Date = " " .. Date .. OrigYear
end
end
if config.CitationClass=="journal" and is_set(Periodical) then
text = safejoin( {Chapter, Place, tcommon}, sepc );
text = safejoin( {text, pgtext, Date, idcommon}, sepc );
else
else
text = safejoin( {Chapter, Place, tcommon, Date}, sepc );
return '', utilities.substitute (cfg.messages['nopp'], {sepc, pages}), '', '';
text = safejoin( {text, pgtext, idcommon}, sepc );
end
end
end
end
if is_set(PostScript) and PostScript ~= sepc then
return '', '', '', ''; -- return empty strings
text = safejoin( {text, sepc}, sepc ); --Deals with italics, spaces, etc.
end
text = text:sub(1,-sepc:len()-1);
 
-- text = text:sub(1,-2); --Remove final separator (assumes that sepc is only one character)
 
end
--[[--------------------------< I N S O U R C E _ L O C _ G E T >----------------------------------------------
 
text = safejoin( {text, PostScript}, sepc );
returns one of the in-source locators: page, pages, or at.


-- Now enclose the whole thing in a <span/> element
If any of these are interwiki links to Wikisource, returns the label portion of the interwiki-link as plain text
local options = {};
for use in COinS. This COinS thing is done because here we convert an interwiki-link to an external link and
add an icon span around that; get_coins_pages() doesn't know about the span. TODO: should it? 
if is_set(config.CitationClass) and config.CitationClass ~= "citation" then
options.class = "citation " .. config.CitationClass;
else
options.class = "citation";
end
if is_set(Ref) and Ref:lower() ~= "none" then
local id = Ref
if ( "harv" == Ref ) then
local names = {} --table of last names & year
if #a > 0 then
for i,v in ipairs(a) do
names[i] = v.last
if i == 4 then break end
end
elseif #e > 0 then
for i,v in ipairs(e) do
names[i] = v.last
if i == 4 then break end
end
end
names[ #names + 1 ] = first_set(Year, anchor_year); -- Year first for legacy citations and for YMD dates that require disambiguation
id = anchorid(names)
end
options.id = id;
end
if string.len(text:gsub("<span[^>/]*>.-</span>", ""):gsub("%b<>","")) <= 2 then
z.error_categories = {};
text = seterror('empty_citation');
z.message_tail = {};
end
if is_set(options.id) then
text = '<span id="' .. mw.uri.anchorEncode(options.id) ..'" class="' .. mw.text.nowiki(options.class) .. '">' .. text .. "</span>";
else
text = '<span class="' .. mw.text.nowiki(options.class) .. '">' .. text .. "</span>";
end


local empty_span = '<span style="display:none;">&nbsp;</span>';
TODO: add support for sheet and sheets?; streamline;
 
-- Note: Using display: none on then COinS span breaks some clients.
TODO: make it so that this function returns only one of the three as the single in-source (the return value assigned
local OCinS = '<span title="' .. OCinSoutput .. '" class="Z3988">' .. empty_span .. '</span>';
to a new name)?
text = text .. OCinS;
 
]]
if #z.message_tail ~= 0 then
 
text = text .. " ";
local function insource_loc_get (page, page_orig, pages, pages_orig, at)
for i,v in ipairs( z.message_tail ) do
local ws_url, ws_label, coins_pages, L; -- for Wikisource interwiki-links; TODO: this corrupts page metadata (span remains in place after cleanup; fix there?)
if is_set(v[1]) then
 
if i == #z.message_tail then
if utilities.is_set (page) then
text = text .. errorcomment( v[1], v[2] );
if utilities.is_set (pages) or utilities.is_set (at) then
else
pages = ''; -- unset the others
text = text .. errorcomment( v[1] .. "; ", v[2] );
at = '';
end
end
end
extra_text_in_page_check (page, page_orig); -- emit error message when |page= value begins with what looks like p., pp., etc.
 
ws_url, ws_label, L = wikisource_url_make (page); -- make ws URL from |page= interwiki link; link portion L becomes tooltip label
if ws_url then
page = 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 = utilities.substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, page});
coins_pages = ws_label;
end
end
end
elseif utilities.is_set (pages) then
if utilities.is_set (at) then
no_tracking_cats = no_tracking_cats:lower();
at = ''; -- unset
if inArray(no_tracking_cats, {"", "no", "false", "n"}) then
for _, v in ipairs( z.error_categories ) do
text = text .. '[[رده:' .. v ..']]';
end
end
for _, v in ipairs( z.maintenance_cats ) do -- append maintenance categories
extra_text_in_page_check (pages, pages_orig); -- emit error message when |page= value begins with what looks like p., pp., etc.
text = text .. '[[رده:' .. v ..']]';
 
ws_url, ws_label, L = wikisource_url_make (pages); -- make ws URL from |pages= interwiki link; link portion L becomes tooltip label
if ws_url then
pages = 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 = utilities.substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, pages});
coins_pages = ws_label;
end
end
for _, v in ipairs( z.properties_cats ) do -- append maintenance categories
elseif utilities.is_set (at) then
text = text .. '[[رده:' .. v ..']]';
ws_url, ws_label, L = wikisource_url_make (at); -- make ws URL from |at= interwiki link; link portion L becomes tooltip label
if ws_url then
at = 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 = utilities.substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, at});
coins_pages = ws_label;
end
end
end
end
return text
return page, pages, at, coins_pages;
end
end


-- This is used by templates such as {{cite book}} to create the actual citation text.
--[[--------------------------< I S _ U N I Q U E _ A R C H I V E _ U R L >------------------------------------
function z.citation(frame)
 
local pframe = frame:getParent()
add error message when |archive-url= value is same as |url= or chapter-url= (or alias...) value
 
if nil ~= string.find( frame:getTitle(), 'تمرین', 1, true ) then -- did the {{#invoke:}} use sandbox version?
]]
cfg = mw.loadData( 'Module:Citation/CS1/Configuration/تمرین' ); -- load sandbox versions of Configuration and Whitelist and ...
 
whitelist = mw.loadData( 'Module:Citation/CS1/Whitelist/تمرین' );
local function is_unique_archive_url (archive, url, c_url, source, date)
dates = require('Module:Citation/CS1/Date_validation/تمرین').dates -- ... sandbox version of date validation code
if utilities.is_set (archive) then
else -- otherwise
if archive == url or archive == c_url then
cfg = mw.loadData( 'Module:Citation/CS1/Configuration' ); -- load live versions of Configuration and Whitelist and ...
utilities.set_message ('err_bad_url', {utilities.wrap_style ('parameter', source)}); -- add error message
whitelist = mw.loadData( 'Module:Citation/CS1/Whitelist' );
return '', ''; -- unset |archive-url= and |archive-date= because same as |url= or |chapter-url=
dates = require('Module:Citation/CS1/Date_validation').dates -- ... live version of date validation code
end
end
end
local args = {};
local suggestions = {};
local error_text, error_state;


local config = {};
return archive, date;
for k, v in pairs( frame.args ) do
end
config[k] = v;
args[k] = v;  
end


for k, v in pairs( pframe.args ) do
 
if v ~= '' then
--[=[-------------------------< A R C H I V E _ U R L _ C H E C K >--------------------------------------------
if not validate( k ) then
 
error_text = "";
Check archive.org URLs to make sure they at least look like they are pointing at valid archives and not to the
if type( k ) ~= 'string' then
save snapshot URL or to calendar pages.  When the archive URL is 'https://web.archive.org/save/' (or http://...)
-- Exclude empty numbered parameters
archive.org saves a snapshot of the target page in the URL.  That is something that Wikipedia should not allow
if v:match("%S+") ~= nil then
unwitting readers to do.
error_text, error_state = seterror( 'text_ignored', {v}, true );
 
end
When the archive.org URL does not have a complete timestamp, archive.org chooses a snapshot according to its own
elseif validate( k:lower() ) then  
algorithm or provides a calendar 'search' result.  [[WP:ELNO]] discourages links to search results.
error_text, error_state = seterror( 'parameter_ignored_suggest', {k, k:lower()}, true );
 
else
This function looks at the value assigned to |archive-url= and returns empty strings for |archive-url= and
if #suggestions == 0 then
|archive-date= and an error message when:
suggestions = mw.loadData( 'Module:Citation/CS1/Suggestions' );
|archive-url= holds an archive.org save command URL
end
|archive-url= is an archive.org URL that does not have a complete timestamp (YYYYMMDDhhmmss 14 digits) in the
if suggestions[ k:lower() ] ~= nil then
correct place
error_text, error_state = seterror( 'parameter_ignored_suggest', {k, suggestions[ k:lower() ]}, true );
otherwise returns |archive-url= and |archive-date=
else
 
error_text, error_state = seterror( 'parameter_ignored', {k}, true );
There are two mostly compatible archive.org URLs:
end
//web.archive.org/<timestamp>... -- the old form
end  
//web.archive.org/web/<timestamp>... -- the new form
if error_text ~= '' then
 
table.insert( z.message_tail, {error_text, error_state} );
The old form does not support or map to the new form when it contains a display flag.  There are four identified flags
end
('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 function may return a modified
archive URL:
for save command errors, return undated wildcard (/*/)
for timestamp errors when the timestamp has a wildcard, return the URL unmodified
for 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 empty
local path, timestamp, flag; -- portions of the archive.org URL
if (not url:match('//web%.archive%.org/')) and (not url:match('//liveweb%.archive%.org/')) then -- also deprecated liveweb Wayback machine URL
return url, date; -- not an archive.org archive, return ArchiveURL and ArchiveDate
end
 
if 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 ArchiveURL
elseif url:match('//liveweb%.archive%.org/') then
err_msg = cfg.err_msg_supl.liveweb;
else
path, timestamp, flag = url:match('//web%.archive%.org/([^%d]*)(%d+)([^/]*)/'); -- split out some of the URL parts for evaluation
if not path then -- malformed in some way; pattern did not match
err_msg = cfg.err_msg_supl.timestamp;
elseif 14 ~= timestamp:len() then -- path and flag optional, must have 14-digit timestamp here
err_msg = cfg.err_msg_supl.timestamp;
if '*' ~= flag then
local replacement = timestamp:match ('^%d%d%d%d%d%d') or timestamp:match ('^%d%d%d%d'); -- get the first 6 (YYYYMM) or first 4 digits (YYYY)
if replacement then -- nil if there aren't at least 4 digits (year)
replacement = replacement .. string.rep ('0', 14 - replacement:len()); -- year or yearmo (4 or 6 digits) zero-fill to make 14-digit timestamp
url=url:gsub ('(//web%.archive%.org/[^%d]*)%d[^/]*', '%1' .. replacement .. '*', 1) -- for preview, modify ts to 14 digits plus splat for calendar display
end
end
end
args[k] = v;
elseif utilities.is_set (path) and 'web/' ~= path then -- older archive URLs do not have the extra 'web/' path element
elseif args[k] ~= nil or (k == 'postscript') then
err_msg = cfg.err_msg_supl.path;
args[k] = v;
elseif utilities.is_set (flag) and not utilities.is_set (path) then -- flag not allowed with the old form URL (without the 'web/' path element)
end
err_msg = cfg.err_msg_supl.flag;
end
elseif utilities.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;
else
return url, date; -- return ArchiveURL and ArchiveDate
end
end
-- if here, something not right so
utilities.set_message ('err_archive_url', {err_msg}); -- add error message and
 
if is_preview_mode then
return url, date; -- preview mode so return ArchiveURL and ArchiveDate
else
return '', ''; -- return empty strings for ArchiveURL and ArchiveDate
end
end
 
 
--[[--------------------------< 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 because
many editors misuse 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 utilities.is_set (param_val) then -- parameter empty or omitted
return param_val; -- return that empty state
end
if mw.ustring.find (param_val, '%d') then -- not empty, are there digits in the parameter value
utilities.set_message ('maint_location'); -- yep, add maint cat
end
return citation0( config, args)
return param_val; -- and done
end
end


return z
 
--[[--------------------------< I S _ A R C H I V E D _ C O P Y >----------------------------------------------
 
compares |title= to 'Archived copy' (placeholder added by bots that can't find proper title); if matches, return true; nil else
 
]]
 
local function is_archived_copy (title)
title = mw.ustring.lower(title); -- switch title to lower case
if title:find (cfg.special_case_translation.archived_copy.en) then -- if title is 'Archived copy'
return true;
elseif cfg.special_case_translation.archived_copy['local'] then
if mw.ustring.find (title, cfg.special_case_translation.archived_copy['local']) then -- mw.ustring() because might not be Latin script
return true;
end
end
end
 
 
--[[--------------------------< 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 Parameters
The 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 author_etal;
local a = {}; -- authors list from |lastn= / |firstn= pairs or |vauthors=
local Authors;
local NameListStyle = is_valid_parameter_value (A['NameListStyle'], A:ORIGIN('NameListStyle'), cfg.keywords_lists['name-list-style'], '');
local Collaboration = A['Collaboration'];
 
do -- to limit scope of selected
local selected = select_author_editor_source (A['Vauthors'], A['Authors'], args, 'AuthorList');
if 1 == selected then
a, author_etal = extract_names (args, 'AuthorList'); -- fetch author list from |authorn= / |lastn= / |firstn=, |author-linkn=, and |author-maskn=
elseif 2 == selected then
NameListStyle = 'vanc'; -- override whatever |name-list-style= might be
a, author_etal = parse_vauthors_veditors (args, args.vauthors, 'AuthorList'); -- fetch author list from |vauthors=, |author-linkn=, and |author-maskn=
elseif 3 == selected then
Authors = A['Authors']; -- use content of |authors=
if 'authors' == A:ORIGIN('Authors') then -- but add a maint cat if the parameter is |authors=
utilities.set_message ('maint_authors'); -- because use of this parameter is discouraged; what to do about the aliases is a TODO:
end
end
if utilities.is_set (Collaboration) then
author_etal = true; -- so that |display-authors=etal not required
end
end
 
local editor_etal;
local e = {}; -- editors list from |editor-lastn= / |editor-firstn= pairs or |veditors=
 
do -- to limit scope of selected
local selected = select_author_editor_source (A['Veditors'], nil, args, 'EditorList'); -- support for |editors= withdrawn
if 1 == selected then
e, editor_etal = extract_names (args, 'EditorList'); -- fetch editor list from |editorn= / |editor-lastn= / |editor-firstn=, |editor-linkn=, and |editor-maskn=
elseif 2 == selected then
NameListStyle = 'vanc'; -- override whatever |name-list-style= might be
e, editor_etal = parse_vauthors_veditors (args, args.veditors, 'EditorList'); -- fetch editor list from |veditors=, |editor-linkn=, and |editor-maskn=
end
end
local Chapter = A['Chapter']; -- done here so that we have access to |contribution= from |chapter= aliases
local Chapter_origin = A:ORIGIN ('Chapter');
local Contribution; -- because contribution is required for contributor(s)
if 'contribution' == Chapter_origin then
Contribution = Chapter; -- get the name of the contribution
end
local c = {}; -- contributors list from |contributor-lastn= / contributor-firstn= pairs
if utilities.in_array (config.CitationClass, {"book", "citation"}) and not utilities.is_set (A['Periodical']) then -- |contributor= and |contribution= only supported in book cites
c = extract_names (args, 'ContributorList'); -- fetch contributor list from |contributorn= / |contributor-lastn=, -firstn=, -linkn=, -maskn=
if 0 < #c then
if not utilities.is_set (Contribution) then -- |contributor= requires |contribution=
utilities.set_message ('err_contributor_missing_required_param', 'contribution'); -- add missing contribution error message
c = {}; -- blank the contributors' table; it is used as a flag later
end
if 0 == #a then -- |contributor= requires |author=
utilities.set_message ('err_contributor_missing_required_param', 'author'); -- add missing author error message
c = {}; -- blank the contributors' table; it is used as a flag later
end
end
else -- if not a book cite
if utilities.select_one (args, cfg.aliases['ContributorList-Last'], 'err_redundant_parameters', 1 ) then -- are there contributor name list parameters?
utilities.set_message ('err_contributor_ignored'); -- add contributor ignored error message
end
Contribution = nil; -- unset
end
 
local Title = A['Title'];
local TitleLink = A['TitleLink'];
 
local auto_select = ''; -- default is auto
local accept_link;
TitleLink, accept_link = utilities.has_accept_as_written (TitleLink, true); -- test for accept-this-as-written markup
if (not accept_link) and utilities.in_array (TitleLink, {'none', 'pmc', 'doi'}) then -- check for special keywords
auto_select = TitleLink; -- remember selection for later
TitleLink = ''; -- treat as if |title-link= would have been empty
end
 
TitleLink = link_title_ok (TitleLink, A:ORIGIN ('TitleLink'), Title, 'title'); -- check for wiki-markup in |title-link= or wiki-markup in |title= when |title-link= is set
 
local Section = ''; -- {{cite map}} only; preset to empty string for concatenation if not used
if 'map' == config.CitationClass and 'section' == Chapter_origin then
Section = A['Chapter']; -- get |section= from |chapter= alias list; |chapter= and the other aliases not supported in {{cite map}}
Chapter = ''; -- unset for now; will be reset later from |map= if present
end
 
local Periodical = A['Periodical'];
local Periodical_origin = '';
if utilities.is_set (Periodical) then
Periodical_origin = A:ORIGIN('Periodical'); -- get the name of the periodical parameter
local i;
Periodical, i = utilities.strip_apostrophe_markup (Periodical); -- strip apostrophe markup so that metadata isn't contaminated
if i then -- non-zero when markup was stripped so emit an error message
utilities.set_message ('err_apostrophe_markup', {Periodical_origin});
end
end
 
if 'mailinglist' == config.CitationClass then -- special case for {{cite mailing list}}
if utilities.is_set (Periodical) and utilities.is_set (A ['MailingList']) then -- both set emit an error TODO: make a function for this and similar?
utilities.set_message ('err_redundant_parameters', {utilities.wrap_style ('parameter', Periodical_origin) .. ' and ' .. utilities.wrap_style ('parameter', 'mailinglist')});
end
 
Periodical = A ['MailingList']; -- error or no, set Periodical to |mailinglist= value because this template is {{cite mailing list}}
Periodical_origin = A:ORIGIN('MailingList');
end
 
local ScriptPeriodical = A['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 (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical)) then -- 'periodical' templates require periodical parameter
-- local p = {['journal'] = 'journal', ['magazine'] = 'magazine', ['news'] = 'newspaper', ['web'] = 'website'}; -- for error message
local p = {['journal'] = 'journal', ['magazine'] = 'magazine'}; -- for error message
if p[config.CitationClass]  then
utilities.set_message ('err_missing_periodical', {config.CitationClass, p[config.CitationClass]});
end
end
local Volume;
local ScriptPeriodical_origin = A:ORIGIN('ScriptPeriodical');
if 'citation' == config.CitationClass then
if utilities.is_set (Periodical) then
if not utilities.in_array (Periodical_origin, cfg.citation_no_volume_t) then -- {{citation}} does not render |volume= when these parameters are used
Volume = A['Volume']; -- but does for all other 'periodicals'
end
elseif utilities.is_set (ScriptPeriodical) then
if 'script-website' ~= ScriptPeriodical_origin then -- {{citation}} does not render volume for |script-website=
Volume = A['Volume']; -- but does for all other 'periodicals'
end
else
Volume = A['Volume']; -- and does for non-'periodical' cites
end
elseif utilities.in_array (config.CitationClass, cfg.templates_using_volume) then -- render |volume= for cs1 according to the configuration settings
Volume = A['Volume'];
end
extra_text_in_vol_iss_check (Volume, A:ORIGIN ('Volume'), 'v');
 
local Issue;
if 'citation' == config.CitationClass then
if utilities.is_set (Periodical) and utilities.in_array (Periodical_origin, cfg.citation_issue_t) then -- {{citation}} may render |issue= when these parameters are used
Issue = utilities.hyphen_to_dash (A['Issue']);
end
elseif utilities.in_array (config.CitationClass, cfg.templates_using_issue) then -- conference & map books do not support issue; {{citation}} listed here because included in settings table
if not (utilities.in_array (config.CitationClass, {'conference', 'map', 'citation'}) and not (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical))) then
Issue = utilities.hyphen_to_dash (A['Issue']);
end
end
extra_text_in_vol_iss_check (Issue, A:ORIGIN ('Issue'), 'i');
 
local Page;
local Pages;
local At;
if not utilities.in_array (config.CitationClass, cfg.templates_not_using_page) then
Page = A['Page'];
Pages = utilities.hyphen_to_dash (A['Pages']);
At = A['At'];
end
 
local 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 utilities.is_set (PublisherName) then
local i = 0;
PublisherName, i = utilities.strip_apostrophe_markup (PublisherName); -- strip apostrophe markup so that metadata isn't contaminated; publisher is never italicized
if i then -- non-zero when markup was stripped so emit an error message
utilities.set_message ('err_apostrophe_markup', {PublisherName_origin});
end
end
 
local Newsgroup = A['Newsgroup']; -- TODO: strip apostrophe markup?
local Newsgroup_origin = A:ORIGIN('Newsgroup');
 
if 'newsgroup' == config.CitationClass then
if utilities.is_set (PublisherName) then -- general use parameter |publisher= not allowed in cite newsgroup
utilities.set_message ('err_parameter_ignored', {PublisherName_origin});
end
 
PublisherName = nil; -- ensure that this parameter is unset for the time being; will be used again after COinS
end
 
local URL = A['URL']; -- TODO: better way to do this for URL, ChapterURL, and MapURL?
local UrlAccess = is_valid_parameter_value (A['UrlAccess'], A:ORIGIN('UrlAccess'), cfg.keywords_lists['url-access'], nil);
if not utilities.is_set (URL) and utilities.is_set (UrlAccess) then
UrlAccess = nil;
utilities.set_message ('err_param_access_requires_param', 'url');
end
local ChapterURL = A['ChapterURL'];
local ChapterUrlAccess = is_valid_parameter_value (A['ChapterUrlAccess'], A:ORIGIN('ChapterUrlAccess'), cfg.keywords_lists['url-access'], nil);
if not utilities.is_set (ChapterURL) and utilities.is_set (ChapterUrlAccess) then
ChapterUrlAccess = nil;
utilities.set_message ('err_param_access_requires_param', {A:ORIGIN('ChapterUrlAccess'):gsub ('%-access', '')});
end
 
local MapUrlAccess = is_valid_parameter_value (A['MapUrlAccess'], A:ORIGIN('MapUrlAccess'), cfg.keywords_lists['url-access'], nil);
if not utilities.is_set (A['MapURL']) and utilities.is_set (MapUrlAccess) then
MapUrlAccess = nil;
utilities.set_message ('err_param_access_requires_param', {'map-url'});
end
 
local this_page = mw.title.getCurrentTitle(); -- also used for COinS and for language
local no_tracking_cats = is_valid_parameter_value (A['NoTracking'], A:ORIGIN('NoTracking'), cfg.keywords_lists['yes_true_y'], nil);
 
-- check this page to see if it is in one of the namespaces that cs1 is not supposed to add to the error categories
if not utilities.is_set (no_tracking_cats) then -- ignore if we are already not going to categorize this page
if utilities.in_array (this_page.nsText, cfg.uncategorized_namespaces) then
no_tracking_cats = "true"; -- set no_tracking_cats
end
for _, v in ipairs (cfg.uncategorized_subpages) do -- cycle through page name patterns
if this_page.text:match (v) then -- test page name against each pattern
no_tracking_cats = "true"; -- set no_tracking_cats
break; -- bail out if one is found
end
end
end
-- check for extra |page=, |pages= or |at= parameters. (also sheet and sheets while we're at it)
utilities.select_one (args, {'page', 'p', 'pp', 'pages', 'at', 'sheet', 'sheets'}, 'err_redundant_parameters'); -- this is a dummy call simply to get the error message and category
 
local coins_pages;
Page, Pages, At, coins_pages = insource_loc_get (Page, A:ORIGIN('Page'), Pages, A:ORIGIN('Pages'), At);
 
local NoPP = is_valid_parameter_value (A['NoPP'], A:ORIGIN('NoPP'), cfg.keywords_lists['yes_true_y'], nil);
 
if utilities.is_set (PublicationPlace) and utilities.is_set (Place) then -- both |publication-place= and |place= (|location=) allowed if different
utilities.add_prop_cat ('location-test'); -- add property cat to evaluate how often PublicationPlace and Place are used together
if PublicationPlace == Place then
Place = ''; -- unset; don't need both if they are the same
end
elseif not utilities.is_set (PublicationPlace) and utilities.is_set (Place) then -- when only |place= (|location=) is set ...
PublicationPlace = Place; -- promote |place= (|location=) to |publication-place
end
 
if PublicationPlace == Place then Place = ''; end -- don't need both if they are the same
local URL_origin = A:ORIGIN('URL'); -- get name of parameter that holds URL
local ChapterURL_origin = A:ORIGIN('ChapterURL'); -- get name of parameter that holds ChapterURL
local ScriptChapter = A['ScriptChapter'];
local ScriptChapter_origin = A:ORIGIN ('ScriptChapter');
local Format = A['Format'];
local ChapterFormat = A['ChapterFormat'];
local TransChapter = A['TransChapter'];
local TransChapter_origin = A:ORIGIN ('TransChapter');
local TransTitle = A['TransTitle'];
local ScriptTitle = A['ScriptTitle'];
--[[
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 |chapter-url= when |title= is remapped
All other combinations of |encyclopedia=, |title=, and |article= are not modified
]]
 
local Encyclopedia = A['Encyclopedia']; -- used as a flag by this module and by ~/COinS
 
if utilities.is_set (Encyclopedia) then -- emit error message when Encyclopedia set but template is other than {{cite encyclopedia}} or {{citation}}
if 'encyclopaedia' ~= config.CitationClass and 'citation' ~= config.CitationClass then
utilities.set_message ('err_parameter_ignored', {A:ORIGIN ('Encyclopedia')});
Encyclopedia = nil; -- unset because not supported by this template
end
end
 
if ('encyclopaedia' == config.CitationClass) or ('citation' == config.CitationClass and utilities.is_set (Encyclopedia)) then
if utilities.is_set (Periodical) and utilities.is_set (Encyclopedia) then -- when both set emit an error TODO: make a function for this and similar?
utilities.set_message ('err_redundant_parameters', {utilities.wrap_style ('parameter', A:ORIGIN ('Encyclopedia')) .. ' and ' .. utilities.wrap_style ('parameter', Periodical_origin)});
end
 
if utilities.is_set (Encyclopedia) then
Periodical = Encyclopedia; -- error or no, set Periodical to Encyclopedia; allow periodical without encyclopedia
Periodical_origin = A:ORIGIN ('Encyclopedia');
end
 
if utilities.is_set (Periodical) then -- Periodical is set when |encyclopedia= is set
if utilities.is_set (Title) or utilities.is_set (ScriptTitle) then
if not utilities.is_set (Chapter) then
Chapter = Title; -- |encyclopedia= and |title= are set so map |title= to |article= and |encyclopedia= to |title=
ScriptChapter = ScriptTitle;
ScriptChapter_origin = A:ORIGIN('ScriptTitle')
TransChapter = TransTitle;
ChapterURL = URL;
ChapterURL_origin = URL_origin;
 
ChapterUrlAccess = UrlAccess;
 
if not utilities.is_set (ChapterURL) and utilities.is_set (TitleLink) then
Chapter = utilities.make_wikilink (TitleLink, Chapter);
end
Title = Periodical;
ChapterFormat = Format;
Periodical = ''; -- redundant so unset
TransTitle = '';
URL = '';
Format = '';
TitleLink = '';
ScriptTitle = '';
end
elseif utilities.is_set (Chapter) or utilities.is_set (ScriptChapter) then -- |title= not set
Title = Periodical; -- |encyclopedia= set and |article= set so map |encyclopedia= to |title=
Periodical = ''; -- redundant so unset
end
end
end
 
-- special case for cite techreport.
local ID = A['ID'];
if (config.CitationClass == "techreport") then -- special case for cite techreport
if utilities.is_set (A['Number']) then -- cite techreport uses 'number', which other citations alias to 'issue'
if not utilities.is_set (ID) then -- can we use ID for the "number"?
ID = A['Number']; -- yes, use it
else -- ID has a value so emit error message
utilities.set_message ('err_redundant_parameters', {utilities.wrap_style ('parameter', 'id') .. ' and ' .. utilities.wrap_style ('parameter', 'number')});
end
end
end
 
-- Account for the oddity that is {{cite conference}}, before generation of COinS data.
local ChapterLink -- = A['ChapterLink']; -- deprecated as a parameter but still used internally by cite episode
local Conference = A['Conference'];
local BookTitle = A['BookTitle'];
local TransTitle_origin = A:ORIGIN ('TransTitle');
if 'conference' == config.CitationClass then
if utilities.is_set (BookTitle) then
Chapter = Title;
Chapter_origin = 'title';
-- ChapterLink = TitleLink; -- |chapter-link= is deprecated
ChapterURL = URL;
ChapterUrlAccess = UrlAccess;
ChapterURL_origin = URL_origin;
URL_origin = '';
ChapterFormat = Format;
TransChapter = TransTitle;
TransChapter_origin = TransTitle_origin;
Title = BookTitle;
Format = '';
-- TitleLink = '';
TransTitle = '';
URL = '';
end
elseif 'speech' ~= config.CitationClass then
Conference = ''; -- not cite conference or cite speech so make sure this is empty string
end
-- CS1/2 mode
local Mode = is_valid_parameter_value (A['Mode'], A:ORIGIN('Mode'), cfg.keywords_lists['mode'], '');
-- separator character and postscript
local sepc, PostScript = set_style (Mode:lower(), A['PostScript'], config.CitationClass);
-- controls capitalization of certain static text
local use_lowercase = ( sepc == ',' );
-- cite map oddities
local Cartography = "";
local Scale = "";
local Sheet = A['Sheet'] or '';
local Sheets = A['Sheets'] or '';
if config.CitationClass == "map" then
if utilities.is_set (Chapter) then --TODO: make a function for this and similar?
utilities.set_message ('err_redundant_parameters', {utilities.wrap_style ('parameter', 'map') .. ' and ' .. utilities.wrap_style ('parameter', Chapter_origin)}); -- add error message
end
Chapter = A['Map'];
Chapter_origin = A:ORIGIN('Map');
ChapterURL = A['MapURL'];
ChapterURL_origin = A:ORIGIN('MapURL');
TransChapter = A['TransMap'];
ScriptChapter = A['ScriptMap']
ScriptChapter_origin = A:ORIGIN('ScriptMap')
 
ChapterUrlAccess = MapUrlAccess;
ChapterFormat = A['MapFormat'];
 
Cartography = A['Cartography'];
if utilities.is_set ( Cartography ) then
Cartography = sepc .. " " .. wrap_msg ('cartography', Cartography, use_lowercase);
end
Scale = A['Scale'];
if utilities.is_set ( Scale ) then
Scale = sepc .. " " .. Scale;
end
end
 
-- Account for the oddities that are {{cite episode}} and {{cite serial}}, before generation of COinS data.
local Series = A['Series'];
if 'episode' == config.CitationClass or 'serial' == config.CitationClass then
local SeriesLink = A['SeriesLink'];
 
SeriesLink = link_title_ok (SeriesLink, A:ORIGIN ('SeriesLink'), Series, 'series'); -- check for wiki-markup in |series-link= or wiki-markup in |series= when |series-link= is set
 
local Network = A['Network'];
local Station = A['Station'];
local s, n = {}, {};
-- do common parameters first
if utilities.is_set (Network) then table.insert(n, Network); end
if utilities.is_set (Station) then table.insert(n, Station); end
ID = 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 utilities.is_set (Season) and utilities.is_set (SeriesNumber) then -- these are mutually exclusive so if both are set TODO: make a function for this and similar?
utilities.set_message ('err_redundant_parameters', {utilities.wrap_style ('parameter', 'season') .. ' and ' .. utilities.wrap_style ('parameter', 'seriesno')}); -- add error message
SeriesNumber = ''; -- unset; prefer |season= over |seriesno=
end
-- assemble a table of parts concatenated later into Series
if utilities.is_set (Season) then table.insert(s, wrap_msg ('season', Season, use_lowercase)); end
if utilities.is_set (SeriesNumber) then table.insert(s, wrap_msg ('seriesnum', SeriesNumber, use_lowercase)); end
if utilities.is_set (Issue) then table.insert(s, wrap_msg ('episode', Issue, use_lowercase)); end
Issue = ''; -- unset because this is not a unique parameter
Chapter = Title; -- promote title parameters to chapter
ScriptChapter = ScriptTitle;
ScriptChapter_origin = A:ORIGIN('ScriptTitle');
ChapterLink = TitleLink; -- alias |episode-link=
TransChapter = TransTitle;
ChapterURL = URL;
ChapterUrlAccess = UrlAccess;
ChapterURL_origin = URL_origin;
ChapterFormat = Format;
 
Title = Series; -- promote series to title
TitleLink = SeriesLink;
Series = table.concat(s, sepc .. ' '); -- this is concatenation of season, seriesno, episode number
 
if utilities.is_set (ChapterLink) and not utilities.is_set (ChapterURL) then -- link but not URL
Chapter = utilities.make_wikilink (ChapterLink, Chapter);
elseif utilities.is_set (ChapterLink) and utilities.is_set (ChapterURL) then -- if both are set, URL links episode;
Series = utilities.make_wikilink (ChapterLink, Series);
end
URL = ''; -- unset
TransTitle = '';
ScriptTitle = '';
Format = '';
else -- now oddities that are cite serial
Issue = ''; -- unset because this parameter no longer supported by the citation/core version of cite serial
Chapter = A['Episode']; -- TODO: make |episode= available to cite episode someday?
if utilities.is_set (Series) and utilities.is_set (SeriesLink) then
Series = utilities.make_wikilink (SeriesLink, Series);
end
Series = utilities.wrap_style ('italic-title', Series); -- series is italicized
end
end
-- end of {{cite episode}} stuff
 
-- handle type parameter for those CS1 citations that have default values
local TitleType = A['TitleType'];
local Degree = A['Degree'];
if utilities.in_array (config.CitationClass, {'AV-media-notes', 'interview', 'mailinglist', 'map', 'podcast', 'pressrelease', 'report', 'speech', 'techreport', 'thesis'}) then
TitleType = set_titletype (config.CitationClass, TitleType);
if utilities.is_set (Degree) and "Thesis" == TitleType then -- special case for cite thesis
TitleType = Degree .. ' ' .. cfg.title_types ['thesis']:lower();
end
end
 
if utilities.is_set (TitleType) then -- if type parameter is specified
TitleType = utilities.substitute ( cfg.messages['type'], TitleType); -- display it in parentheses
-- TODO: Hack on TitleType to fix bunched parentheses problem
end
 
-- legacy: promote PublicationDate to Date if neither Date nor Year are set.
local Date = A['Date'];
local Date_origin; -- to hold the name of parameter promoted to Date; required for date error messaging
local PublicationDate = A['PublicationDate'];
local Year = A['Year'];
 
if not utilities.is_set (Date) then
Date = Year; -- promote Year to Date
Year = nil; -- make nil so Year as empty string isn't used for CITEREF
if not utilities.is_set (Date) and utilities.is_set (PublicationDate) then -- use PublicationDate when |date= and |year= are not set
Date = PublicationDate; -- promote PublicationDate to Date
PublicationDate = ''; -- unset, no longer needed
Date_origin = A:ORIGIN('PublicationDate'); -- save the name of the promoted parameter
else
Date_origin = A:ORIGIN('Year'); -- save the name of the promoted parameter
end
else
Date_origin = A:ORIGIN('Date'); -- not a promotion; name required for error messaging
end
 
if 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 where
we get the date used in the metadata.
Date validation supporting code is in Module:Citation/CS1/Date_validation
]]
 
local DF = is_valid_parameter_value (A['DF'], A:ORIGIN('DF'), cfg.keywords_lists['df'], '');
if not utilities.is_set (DF) then
DF = cfg.global_df; -- local |df= if present overrides global df set by {{use xxx date}} template
end
 
local ArchiveURL;
local ArchiveDate;
local ArchiveFormat = A['ArchiveFormat'];
 
ArchiveURL, ArchiveDate = archive_url_check (A['ArchiveURL'], A['ArchiveDate'])
ArchiveFormat = style_format (ArchiveFormat, ArchiveURL, 'archive-format', 'archive-url');
ArchiveURL, ArchiveDate = is_unique_archive_url (ArchiveURL, URL, ChapterURL, A:ORIGIN('ArchiveURL'), ArchiveDate); -- add error message when URL or ChapterURL == ArchiveURL
 
local AccessDate = A['AccessDate'];
local LayDate = A['LayDate'];
local COinS_date = {}; -- holds date info extracted from |date= for the COinS metadata by Module:Date verification
local DoiBroken = A['DoiBroken'];
local Embargo = A['Embargo'];
local anchor_year; -- used in the CITEREF identifier
do -- create defined block to contain local variables error_message, date_parameters_list, mismatch
local error_message = '';
-- AirDate has been promoted to Date so not necessary to check it
local 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')},
['pmc-embargo-date'] = {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')},
};
 
local error_list = {};
anchor_year, Embargo = validation.dates(date_parameters_list, COinS_date, error_list);
 
-- start temporary Julian / Gregorian calendar uncertainty categorization
if COinS_date.inter_cal_cat then
utilities.add_prop_cat ('jul-greg-uncertainty');
end
-- end temporary Julian / Gregorian calendar uncertainty categorization
 
if utilities.is_set (Year) and utilities.is_set (Date) then -- both |date= and |year= not normally needed;
validation.year_date_check (Year, A:ORIGIN ('Year'), Date, A:ORIGIN ('Date'), error_list);
end
if 0 == #error_list then -- error free dates only; 0 when error_list is empty
local modified = false; -- flag
if utilities.is_set (DF) then -- if we need to reformat dates
modified = validation.reformat_dates (date_parameters_list, DF); -- reformat to DF format, use long month names if appropriate
end
 
if true == validation.date_hyphen_to_dash (date_parameters_list) then -- convert hyphens to dashes where appropriate
modified = true;
utilities.set_message ('maint_date_format'); -- hyphens were converted so add maint category
end
-- for those wikis that can and want to have English date names translated to the local language; not supported at en.wiki
if cfg.date_name_auto_xlate_enable and validation.date_name_xlate (date_parameters_list, cfg.date_digit_auto_xlate_enable ) then
utilities.set_message ('maint_date_auto_xlated'); -- add maint cat
modified = true;
end
 
if modified then -- if the date_parameters_list values were modified
AccessDate = date_parameters_list['access-date'].val; -- overwrite date holding parameters with modified values
ArchiveDate = 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;
end
else
utilities.set_message ('err_bad_date', {utilities.make_sep_list (#error_list, error_list)}); -- add this error message
end
end -- end of do
 
local ID_list = {}; -- sequence table of rendered identifiers
local ID_list_coins = {}; -- table of identifiers and their values from args; key is same as cfg.id_handlers's key
local Class = A['Class']; -- arxiv class identifier
local ID_support = {
{A['ASINTLD'], 'ASIN', 'err_asintld_missing_asin', A:ORIGIN ('ASINTLD')},
{DoiBroken, 'DOI', 'err_doibroken_missing_doi', A:ORIGIN ('DoiBroken')},
{Embargo, 'PMC', 'err_embargo_missing_pmc', A:ORIGIN ('Embargo')},
}
 
ID_list, ID_list_coins = identifiers.identifier_lists_get (args, {DoiBroken = DoiBroken, ASINTLD = A['ASINTLD'], Embargo = Embargo, Class = Class}, ID_support);
 
-- Account for the oddities that are {{cite arxiv}}, {{cite biorxiv}}, {{cite citeseerx}}, {{cite ssrn}}, before generation of COinS data.
if utilities.in_array (config.CitationClass, whitelist.preprint_template_list) then
if not utilities.is_set (ID_list_coins[config.CitationClass:upper()]) then -- |arxiv= or |eprint= required for cite arxiv; |biorxiv= & |citeseerx= required for their templates
utilities.set_message ('err_' .. config.CitationClass .. '_missing'); -- add error message
end
 
Periodical = ({['arxiv'] = 'arXiv', ['biorxiv'] = 'bioRxiv', ['citeseerx'] = 'CiteSeerX', ['ssrn'] = 'Social Science Research Network'})[config.CitationClass];
end
 
-- Link the title of the work if no |url= was provided, but we have a |pmc= or a |doi= with |doi-access=free
 
if config.CitationClass == "journal" and not utilities.is_set (URL) and not utilities.is_set (TitleLink) and not utilities.in_array (cfg.keywords_xlate[Title], {'off', 'none'}) then -- TODO: remove 'none' once existing citations have been switched to 'off', so 'none' can be used as token for "no title" instead
if 'none' ~= cfg.keywords_xlate[auto_select] then -- if auto-linking not disabled
if identifiers.auto_link_urls[auto_select] then -- manual selection
URL = identifiers.auto_link_urls[auto_select]; -- set URL to be the same as identifier's external link
URL_origin = cfg.id_handlers[auto_select:upper()].parameters[1]; -- set URL_origin to parameter name for use in error message if citation is missing a |title=
elseif identifiers.auto_link_urls['pmc'] then -- auto-select PMC
URL = identifiers.auto_link_urls['pmc']; -- set URL to be the same as the PMC external link if not embargoed
URL_origin = cfg.id_handlers['PMC'].parameters[1]; -- set URL_origin to parameter name for use in error message if citation is missing a |title=
elseif identifiers.auto_link_urls['doi'] then -- auto-select DOI
URL = identifiers.auto_link_urls['doi'];
URL_origin = cfg.id_handlers['DOI'].parameters[1];
end
end
 
if utilities.is_set (URL) then -- set when using an identifier-created URL
if utilities.is_set (AccessDate) then -- |access-date= requires |url=; identifier-created URL is not |url=
utilities.set_message ('err_accessdate_missing_url'); -- add an error message
AccessDate = ''; -- unset
end
 
if utilities.is_set (ArchiveURL) then -- |archive-url= requires |url=; identifier-created URL is not |url=
utilities.set_message ('err_archive_missing_url'); -- add an error message
ArchiveURL = ''; -- unset
end
end
end
 
-- 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 title
if not utilities.is_set (Title) and not utilities.is_set (TransTitle) and not utilities.is_set (ScriptTitle) then -- has special case for cite episode
utilities.set_message ('err_citation_missing_title', {'episode' == config.CitationClass and 'series' or 'title'});
end
 
if utilities.in_array (cfg.keywords_xlate[Title], {'off', 'none'}) and
utilities.in_array (config.CitationClass, {'journal', 'citation'}) and
(utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical)) and
('journal' == Periodical_origin or 'script-journal' == ScriptPeriodical_origin) then -- special case for journal cites
Title = ''; -- set title to empty string
utilities.set_message ('maint_untitled'); -- add maint cat
end
 
-- 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 required
local coins_title = Title; -- et tu
if 'encyclopaedia' == config.CitationClass or ('citation' == config.CitationClass and utilities.is_set (Encyclopedia)) then
if utilities.is_set (Chapter) and utilities.is_set (Title) and utilities.is_set (Periodical) then -- if all are used then
coins_chapter = Title; -- remap
coins_title = Periodical;
end
end
local coins_author = a; -- default for coins rft.au
if 0 < #c then -- but if contributor list
coins_author = c; -- use that instead
end
local QuotePage = A['QuotePage'];
local QuotePages = utilities.hyphen_to_dash (A['QuotePages']);
 
-- this is the function call to COinS()
local OCinSoutput = metadata.COinS({
['Periodical'] = utilities.strip_apostrophe_markup (Periodical), -- no markup in the metadata
['Encyclopedia'] = Encyclopedia, -- just a flag; content ignored by ~/COinS
['Chapter'] = metadata.make_coins_title (coins_chapter, ScriptChapter), -- Chapter and ScriptChapter stripped of bold / italic / accept-as-written markup
['Degree'] = Degree; -- cite thesis only
['Title'] = metadata.make_coins_title (coins_title, ScriptTitle), -- Title and ScriptTitle stripped of bold / italic / accept-as-written markup
['PublicationPlace'] = PublicationPlace,
['Date'] = COinS_date.rftdate, -- COinS_date has correctly formatted date if Date is valid;
['Season'] = COinS_date.rftssn,
['Quarter'] = COinS_date.rftquarter,
['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 metadata.get_coins_pages (first_set ({Sheet, Sheets, Page, Pages, At, QuotePage, QuotePages}, 7)), -- 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_coins,
['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 utilities.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 displayed
Periodical = ''; -- periodical not allowed in these templates; if article has been published, use cite journal
end
 
-- special case for cite newsgroup.  Do this after COinS because we are modifying Publishername to include some static text
if 'newsgroup' == config.CitationClass and utilities.is_set (Newsgroup) then
PublisherName = utilities.substitute (cfg.messages['newsgroup'], external_link( 'news:' .. Newsgroup, Newsgroup, Newsgroup_origin, nil ));
end
 
local Editors;
local EditorCount; -- used only for choosing {ed.) or (eds.) annotation at end of editor name-list
local Contributors; -- assembled contributors name list
local contributor_etal;
local Translators; -- assembled translators name list
local translator_etal;
local t = {}; -- translators list from |translator-lastn= / translator-firstn= pairs
t = extract_names (args, 'TranslatorList'); -- fetch translator list from |translatorn= / |translator-lastn=, -firstn=, -linkn=, -maskn=
local Interviewers;
local interviewers_list = {};
interviewers_list = extract_names (args, 'InterviewerList'); -- process preferred interviewers parameters
local interviewer_etal;
-- 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.
do
local last_first_list;
local control = {
format = NameListStyle, -- empty string or 'vanc'
maximum = nil, -- as if display-authors or display-editors not set
mode = Mode
};
 
do -- do editor name list first because the now unsupported coauthors used to modify control table
control.maximum , editor_etal = get_display_names (A['DisplayEditors'], #e, 'editors', editor_etal, A:ORIGIN ('DisplayEditors'));
Editors, EditorCount = list_people (control, e, editor_etal);
 
if 1 == EditorCount and (true == editor_etal or 1 < #e) then -- only one editor displayed but includes etal then
EditorCount = 2; -- spoof to display (eds.) annotation
end
end
do -- now do interviewers
control.maximum, interviewer_etal = get_display_names (A['DisplayInterviewers'], #interviewers_list, 'interviewers', interviewer_etal, A:ORIGIN ('DisplayInterviewers'));
Interviewers = list_people (control, interviewers_list, interviewer_etal);
end
do -- now do translators
control.maximum, translator_etal = get_display_names (A['DisplayTranslators'], #t, 'translators', translator_etal, A:ORIGIN ('DisplayTranslators'));
Translators = list_people (control, t, translator_etal);
end
do -- now do contributors
control.maximum, contributor_etal = get_display_names (A['DisplayContributors'], #c, 'contributors', contributor_etal, A:ORIGIN ('DisplayContributors'));
Contributors = list_people (control, c, contributor_etal);
end
do -- now do authors
control.maximum, author_etal = get_display_names (A['DisplayAuthors'], #a, 'authors', author_etal, A:ORIGIN ('DisplayAuthors'));
 
last_first_list = list_people (control, a, author_etal);
 
if utilities.is_set (Authors) then
Authors, author_etal = name_has_etal (Authors, author_etal, false, 'authors'); -- find and remove variations on et al.
if author_etal then
Authors = Authors .. ' ' .. cfg.messages['et al']; -- add et al. to authors parameter
end
else
Authors = last_first_list; -- either an author name list or an empty string
end
end -- end of do
if utilities.is_set (Authors) and utilities.is_set (Collaboration) then
Authors = Authors .. ' (' .. Collaboration .. ')'; -- add collaboration after et al.
end
 
end
 
local ConferenceFormat = A['ConferenceFormat'];
local ConferenceURL = A['ConferenceURL'];
ConferenceFormat = style_format (ConferenceFormat, ConferenceURL, 'conference-format', 'conference-url');
Format = style_format (Format, URL, 'format', 'url');
 
-- special case for chapter format so no error message or cat when chapter not supported
if not (utilities.in_array (config.CitationClass, {'web', 'news', 'journal', 'magazine', 'pressrelease', 'podcast', 'newsgroup', 'arxiv', 'biorxiv', 'citeseerx', 'ssrn'}) or
('citation' == config.CitationClass and (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical)) and not utilities.is_set (Encyclopedia))) then
ChapterFormat = style_format (ChapterFormat, ChapterURL, 'chapter-format', 'chapter-url');
end
 
if not utilities.is_set (URL) then
if utilities.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=
utilities.set_message ('err_cite_web_url');
end
-- do we have |accessdate= without either |url= or |chapter-url=?
if utilities.is_set (AccessDate) and not utilities.is_set (ChapterURL) then -- ChapterURL may be set when URL is not set;
utilities.set_message ('err_accessdate_missing_url');
AccessDate = '';
end
end
 
local UrlStatus = is_valid_parameter_value (A['UrlStatus'], A:ORIGIN('UrlStatus'), cfg.keywords_lists['url-status'], '');
local OriginalURL
local OriginalURL_origin
local OriginalFormat
local OriginalAccess;
UrlStatus = UrlStatus:lower(); -- used later when assembling archived text
if utilities.is_set ( ArchiveURL ) then
if utilities.is_set (ChapterURL) then -- if chapter-url= is set apply archive url to it
OriginalURL = ChapterURL; -- save copy of source chapter's url for archive text
OriginalURL_origin = ChapterURL_origin; -- name of |chapter-url= parameter for error messages
OriginalFormat = ChapterFormat; -- and original |chapter-format=
 
if 'live' ~= UrlStatus then
ChapterURL = ArchiveURL -- swap-in the archive's URL
ChapterURL_origin = A:ORIGIN('ArchiveURL') -- name of |archive-url= parameter for error messages
ChapterFormat = ArchiveFormat or ''; -- swap in archive's format
ChapterUrlAccess = nil; -- restricted access levels do not make sense for archived URLs
end
elseif utilities.is_set (URL) then
OriginalURL = URL; -- save copy of original source URL
OriginalURL_origin = URL_origin; -- name of URL parameter for error messages
OriginalFormat = Format; -- and original |format=
OriginalAccess = UrlAccess;
 
if 'live' ~= UrlStatus then -- if URL set then |archive-url= applies to it
URL = ArchiveURL -- swap-in the archive's URL
URL_origin = A:ORIGIN('ArchiveURL') -- name of archive URL parameter for error messages
Format = ArchiveFormat or ''; -- swap in archive's format
UrlAccess = nil; -- restricted access levels do not make sense for archived URLs
end
end
elseif utilities.is_set (UrlStatus) then -- if |url-status= is set when |archive-url= is not set
utilities.set_message ('maint_url_status'); -- add maint cat
end
 
if utilities.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 (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical)) and not utilities.is_set (Encyclopedia)) then
local chap_param;
if utilities.is_set (Chapter) then -- get a parameter name from one of these chapter related meta-parameters
chap_param = A:ORIGIN ('Chapter')
elseif utilities.is_set (TransChapter) then
chap_param = A:ORIGIN ('TransChapter')
elseif utilities.is_set (ChapterURL) then
chap_param = A:ORIGIN ('ChapterURL')
elseif utilities.is_set (ScriptChapter) then
chap_param = ScriptChapter_origin;
else utilities.is_set (ChapterFormat)
chap_param = A:ORIGIN ('ChapterFormat')
end
 
if utilities.is_set (chap_param) then -- if we found one
utilities.set_message ('err_chapter_ignored', {chap_param}); -- add error message
Chapter = ''; -- and set them to empty string to be safe with concatenation
TransChapter = '';
ChapterURL = '';
ScriptChapter = '';
ChapterFormat = '';
end
else -- otherwise, format chapter / article title
local no_quotes = false; -- default assume that we will be quoting the chapter parameter value
if utilities.is_set (Contribution) and 0 < #c then -- if this is a contribution with contributor(s)
if utilities.in_array (Contribution:lower(), cfg.keywords_lists.contribution) then -- and a generic contribution title
no_quotes = true; -- then render it unquoted
end
end
 
Chapter = format_chapter_title (ScriptChapter, ScriptChapter_origin, Chapter, Chapter_origin, TransChapter, TransChapter_origin, ChapterURL, ChapterURL_origin, no_quotes, ChapterUrlAccess); -- Contribution is also in Chapter
if utilities.is_set (Chapter) then
Chapter = Chapter .. ChapterFormat ;
if 'map' == config.CitationClass and utilities.is_set (TitleType) then
Chapter = Chapter .. ' ' .. TitleType; -- map annotation here; not after title
end
Chapter = Chapter .. sepc .. ' ';
elseif utilities.is_set (ChapterFormat) then -- |chapter= not set but |chapter-format= is so ...
Chapter = ChapterFormat .. sepc .. ' '; -- ... ChapterFormat has error message, we want to see it
end
end
 
-- Format main title
local plain_title = false;
local accept_title;
Title, accept_title = utilities.has_accept_as_written (Title, true); -- remove accept-this-as-written markup when it wraps all of <Title>
if accept_title and ('' == Title) then -- only support forced empty for now "(())"
Title = cfg.messages['notitle']; -- replace by predefined "No title" message
-- TODO: utilities.set_message ( 'err_redundant_parameters', ...); -- issue proper error message instead of muting
ScriptTitle = ''; -- just mute for now
TransTitle = ''; -- just mute for now
plain_title = true; -- suppress text decoration for descriptive title
utilities.set_message ('maint_untitled'); -- add maint cat
end
 
if not accept_title then -- <Title> not wrapped in accept-as-written markup
if '...' == Title:sub (-3) then -- if ellipsis is the last three characters of |title=
Title = Title:gsub ('(%.%.%.)%.+$', '%1'); -- limit the number of dots to three
elseif not mw.ustring.find (Title, '%.%s*%a%.$') 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 characters
end
 
if utilities.is_set (ArchiveURL) and is_archived_copy (Title) then
utilities.set_message ('maint_archived_copy'); -- add maintenance category before we modify the content of Title
end
 
if is_generic ('generic_titles', Title) then
utilities.set_message ('err_generic_title'); -- set an error message
end
end
 
if (not plain_title) and (utilities.in_array (config.CitationClass, {'web', 'news', 'journal', 'magazine', 'pressrelease', 'podcast', 'newsgroup', 'mailinglist', 'interview', 'arxiv', 'biorxiv', 'citeseerx', 'ssrn'}) or
('citation' == config.CitationClass and (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical)) and not utilities.is_set (Encyclopedia)) or
('map' == config.CitationClass and (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical)))) then -- special case for cite map when the map is in a periodical treat as an article
Title = kern_quotes (Title); -- if necessary, separate title's leading and trailing quote marks from module provided quote marks
Title = utilities.wrap_style ('quoted-title', Title);
Title = script_concatenate (Title, ScriptTitle, 'script-title'); -- <bdi> tags, lang attribute, categorization, etc.; must be done after title is wrapped
TransTitle = utilities.wrap_style ('trans-quoted-title', TransTitle );
elseif plain_title or ('report' == config.CitationClass) then -- no styling for cite report and descriptive titles (otherwise same as above)
Title = script_concatenate (Title, ScriptTitle, 'script-title'); -- <bdi> tags, lang attribute, categorization, etc.; must be done after title is wrapped
TransTitle = utilities.wrap_style ('trans-quoted-title', TransTitle ); -- for cite report, use this form for trans-title
else
Title = utilities.wrap_style ('italic-title', Title);
Title = script_concatenate (Title, ScriptTitle, 'script-title'); -- <bdi> tags, lang attribute, categorization, etc.; must be done after title is wrapped
TransTitle = utilities.wrap_style ('trans-italic-title', TransTitle);
end
 
if utilities.is_set (TransTitle) then
if utilities.is_set (Title) then
TransTitle = " " .. TransTitle;
else
utilities.set_message ('err_trans_missing_title', {'title'});
end
end
 
if utilities.is_set (Title) then -- TODO: is this the right place to be making Wikisource URLs?
if utilities.is_set (TitleLink) and utilities.is_set (URL) then
utilities.set_message ('err_wikilink_in_url'); -- set an error message because we can't have both
TitleLink = ''; -- unset
end
if not utilities.is_set (TitleLink) and utilities.is_set (URL) then
Title = external_link (URL, Title, URL_origin, UrlAccess) .. TransTitle .. Format;
URL = ''; -- unset these because no longer needed
Format = "";
elseif utilities.is_set (TitleLink) and not utilities.is_set (URL) then
local ws_url;
ws_url = wikisource_url_make (TitleLink); -- ignore ws_label return; not used here
if ws_url then
Title = 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 = utilities.substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], TitleLink, Title});
Title = Title .. TransTitle;
else
Title = utilities.make_wikilink (TitleLink, Title) .. TransTitle;
end
else
local ws_url, ws_label, L; -- 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 tooltip label
if ws_url then
Title = Title:gsub ('%b[]', ws_label); -- replace interwiki link with ws_label to retain markup
Title = 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 = utilities.substitute (cfg.presentation['interwiki-icon'], {cfg.presentation['class-wikisource'], L, Title});
Title = Title .. TransTitle;
else
Title = Title .. TransTitle;
end
end
else
Title = TransTitle;
end
 
if utilities.is_set (Place) then
Place = " " .. wrap_msg ('written', Place, use_lowercase) .. sepc .. " ";
end
 
local ConferenceURL_origin = A:ORIGIN('ConferenceURL'); -- get name of parameter that holds ConferenceURL
if utilities.is_set (Conference) then
if utilities.is_set (ConferenceURL) then
Conference = external_link( ConferenceURL, Conference, ConferenceURL_origin, nil );
end
Conference = sepc .. " " .. Conference .. ConferenceFormat;
elseif utilities.is_set (ConferenceURL) then
Conference = sepc .. " " .. external_link( ConferenceURL, nil, ConferenceURL_origin, nil );
end
 
local Position = '';
if not utilities.is_set (Position) then
local Minutes = A['Minutes'];
local Time = A['Time'];
 
if utilities.is_set (Minutes) then
if utilities.is_set (Time) then --TODO: make a function for this and similar?
utilities.set_message ('err_redundant_parameters', {utilities.wrap_style ('parameter', 'minutes') .. ' and ' .. utilities.wrap_style ('parameter', 'time')});
end
Position = " " .. Minutes .. " " .. cfg.messages['minutes'];
else
if utilities.is_set (Time) then
local TimeCaption = A['TimeCaption']
if not utilities.is_set (TimeCaption) then
TimeCaption = cfg.messages['event'];
if sepc ~= '.' then
TimeCaption = TimeCaption:lower();
end
end
Position = " " .. TimeCaption .. " " .. Time;
end
end
else
Position = " " .. Position;
At = '';
end
 
Page, Pages, Sheet, Sheets = format_pages_sheets (Page, Pages, Sheet, Sheets, config.CitationClass, Periodical_origin, sepc, NoPP, use_lowercase);
 
At = utilities.is_set (At) and (sepc .. " " .. At) or "";
Position = utilities.is_set (Position) and (sepc .. " " .. Position) or "";
if config.CitationClass == 'map' then
local Sections = A['Sections']; -- Section (singular) is an alias of Chapter so set earlier
local Inset = A['Inset'];
if utilities.is_set ( Inset ) then
Inset = sepc .. " " .. wrap_msg ('inset', Inset, use_lowercase);
end
 
if utilities.is_set ( Sections ) then
Section = sepc .. " " .. wrap_msg ('sections', Sections, use_lowercase);
elseif utilities.is_set ( Section ) then
Section = sepc .. " " .. wrap_msg ('section', Section, use_lowercase);
end
At = At .. Inset .. Section;
end
 
local Others = A['Others'];
if utilities.is_set (Others) and 0 == #a and 0 == #e then -- add maint cat when |others= has value and used without |author=, |editor=
if config.CitationClass == "AV-media-notes"
or config.CitationClass == "audio-visual" then -- special maint for AV/M which has a lot of 'false' positives right now
utilities.set_message ('maint_others_avm')
else
utilities.set_message ('maint_others');
end
end
Others = utilities.is_set (Others) and (sepc .. " " .. Others) or "";
if utilities.is_set (Translators) then
Others = safe_join ({sepc .. ' ', wrap_msg ('translated', Translators, use_lowercase), Others}, sepc);
end
if utilities.is_set (Interviewers) then
Others = safe_join ({sepc .. ' ', wrap_msg ('interview', Interviewers, use_lowercase), Others}, sepc);
end
local TitleNote = A['TitleNote'];
TitleNote = utilities.is_set (TitleNote) and (sepc .. " " .. TitleNote) or "";
if utilities.is_set (Edition) then
if Edition:match ('%f[%a][Ee]d%n?%.?$') or Edition:match ('%f[%a][Ee]dition$') then -- Ed, ed, Ed., ed., Edn, edn, Edn., edn.
utilities.set_message ('err_extra_text_edition'); -- add error message
end
Edition = " " .. wrap_msg ('edition', Edition);
else
Edition = '';
end
 
Series = utilities.is_set (Series) and wrap_msg ('series', {sepc, Series}) or ""; -- not the same as SeriesNum
local Agency = A['Agency'];
Agency = utilities.is_set (Agency) and wrap_msg ('agency', {sepc, Agency}) or "";
Volume = format_volume_issue (Volume, Issue, config.CitationClass, Periodical_origin, sepc, use_lowercase);
 
if utilities.is_set (AccessDate) then
local retrv_text = " " .. cfg.messages['retrieved']
 
AccessDate = nowrap_date (AccessDate); -- wrap in nowrap span if date in appropriate format
if (sepc ~= ".") then retrv_text = retrv_text:lower() end -- if mode is cs2, lower case
AccessDate = utilities.substitute (retrv_text, AccessDate); -- add retrieved text
 
AccessDate = utilities.substitute (cfg.presentation['accessdate'], {sepc, AccessDate}); -- allow editors to hide accessdates
end
if utilities.is_set (ID) then ID = sepc .. " " .. ID; end
local Docket = A['Docket'];
  if "thesis" == config.CitationClass and utilities.is_set (Docket) then
ID = sepc .. " Docket " .. Docket .. ID;
end
  if "report" == config.CitationClass and utilities.is_set (Docket) then -- for cite report when |docket= is set
ID = sepc .. ' ' .. Docket; -- overwrite ID even if |id= is set
end
 
if utilities.is_set (URL) then
URL = " " .. external_link( URL, nil, URL_origin, UrlAccess );
end
 
local Quote = A['Quote'];
local TransQuote = A['TransQuote'];
local ScriptQuote = A['ScriptQuote'];
if utilities.is_set (Quote) or utilities.is_set (TransQuote) or utilities.is_set (ScriptQuote) then
 
if utilities.is_set (Quote) then
if Quote:sub(1, 1) == '"' and Quote:sub(-1, -1) == '"' then -- if first and last characters of quote are quote marks
Quote = Quote:sub(2, -2); -- strip them off
end
end
 
Quote = utilities.wrap_style ('quoted-text', Quote ); -- wrap in <q>...</q> tags
if utilities.is_set (ScriptQuote) then
Quote = script_concatenate (Quote, ScriptQuote, 'script-quote'); -- <bdi> tags, lang attribute, categorization, etc.; must be done after quote is wrapped
end
 
if utilities.is_set (TransQuote) then
if TransQuote:sub(1, 1) == '"' and TransQuote:sub(-1, -1) == '"' then -- if first and last characters of |trans-quote are quote marks
TransQuote = TransQuote:sub(2, -2); -- strip them off
end
Quote = Quote .. " " .. utilities.wrap_style ('trans-quoted-title', TransQuote );
end
 
if utilities.is_set (QuotePage) or utilities.is_set (QuotePages) then -- add page prefix
local quote_prefix = '';
if utilities.is_set (QuotePage) then
extra_text_in_page_check (QuotePage, 'quote-page'); -- add to maint cat if |quote-page= value begins with what looks like p., pp., etc.
if not NoPP then
quote_prefix = utilities.substitute (cfg.messages['p-prefix'], {sepc, QuotePage}), '', '', '';
else
quote_prefix = utilities.substitute (cfg.messages['nopp'], {sepc, QuotePage}), '', '', '';
end
elseif utilities.is_set (QuotePages) then
extra_text_in_page_check (QuotePages, 'quote-pages'); -- add to maint cat if |quote-pages= value begins with what looks like p., pp., etc.
if tonumber(QuotePages) ~= nil and not NoPP then -- if only digits, assume single page
quote_prefix = utilities.substitute (cfg.messages['p-prefix'], {sepc, QuotePages}), '', '';
elseif not NoPP then
quote_prefix = utilities.substitute (cfg.messages['pp-prefix'], {sepc, QuotePages}), '', '';
else
quote_prefix = utilities.substitute (cfg.messages['nopp'], {sepc, QuotePages}), '', '';
end
end
                       
Quote = quote_prefix .. ": " .. Quote;
else
Quote = sepc .. " " .. Quote;
end
 
PostScript = ""; -- cs1|2 does not supply terminal punctuation when |quote= is set
end
-- We check length of PostScript here because it will have been nuked by
-- the quote parameters. We'd otherwise emit a message even if there wasn't
-- a displayed postscript.
-- TODO: Should the max size (1) be configurable?
-- TODO: Should we check a specific pattern?
if utilities.is_set(PostScript) and mw.ustring.len(PostScript) > 1 then
utilities.set_message ('maint_postscript')
end
local Archived;
if utilities.is_set (ArchiveURL) then
local arch_text;
if not utilities.is_set (ArchiveDate) then
utilities.set_message ('err_archive_missing_date');
ArchiveDate = ''; -- empty string for concatenation
end
if "live" == UrlStatus then
arch_text = cfg.messages['archived'];
if sepc ~= "." then arch_text = arch_text:lower() end
if utilities.is_set (ArchiveDate) then
Archived = sepc .. ' ' .. utilities.substitute ( cfg.messages['archived-live'],
{external_link( ArchiveURL, arch_text, A:ORIGIN('ArchiveURL'), nil) .. ArchiveFormat, ArchiveDate } );
else
Archived = '';
end
if not utilities.is_set (OriginalURL) then
utilities.set_message ('err_archive_missing_url');
Archived = ''; -- empty string for concatenation
end
elseif utilities.is_set (OriginalURL) then -- UrlStatus is empty, 'dead', 'unfit', 'usurped', 'bot: unknown'
if utilities.in_array (UrlStatus, {'unfit', 'usurped', 'bot: unknown'}) then
arch_text = cfg.messages['archived-unfit'];
if sepc ~= "." then arch_text = arch_text:lower() end
Archived = sepc .. ' ' .. arch_text .. ArchiveDate; -- format already styled
if 'bot: unknown' == UrlStatus then
utilities.set_message ('maint_bot_unknown'); -- and add a category if not already added
else
utilities.set_message ('maint_unfit'); -- and add a category if not already added
end
else -- UrlStatus is empty, 'dead'
arch_text = cfg.messages['archived-dead'];
if sepc ~= "." then arch_text = arch_text:lower() end
if utilities.is_set (ArchiveDate) then
Archived = sepc .. " " .. utilities.substitute ( arch_text,
{ external_link( OriginalURL, cfg.messages['original'], OriginalURL_origin, OriginalAccess ) .. OriginalFormat, ArchiveDate } ); -- format already styled
else
Archived = ''; -- unset for concatenation
end
end
else -- OriginalUrl not set
arch_text = cfg.messages['archived-missing'];
if sepc ~= "." then arch_text = arch_text:lower() end
utilities.set_message ('err_archive_missing_url');
Archived = ''; -- empty string for concatenation
end
elseif utilities.is_set (ArchiveFormat) then
Archived = ArchiveFormat; -- if set and ArchiveURL not set ArchiveFormat has error message
else
Archived = '';
end
local Lay = '';
local LaySource = A['LaySource'];
local LayURL = A['LayURL'];
local LayFormat = A['LayFormat'];
LayFormat = style_format (LayFormat, LayURL, 'lay-format', 'lay-url');
if utilities.is_set (LayURL) then
if utilities.is_set (LayDate) then LayDate = " (" .. LayDate .. ")" end
if utilities.is_set (LaySource) then
LaySource = " &ndash; ''" .. utilities.safe_for_italics (LaySource) .. "''";
else
LaySource = "";
end
if sepc == '.' then
Lay = sepc .. " " .. external_link( LayURL, cfg.messages['lay summary'], A:ORIGIN('LayURL'), nil ) .. LayFormat .. LaySource .. LayDate
else
Lay = sepc .. " " .. external_link( LayURL, cfg.messages['lay summary']:lower(), A:ORIGIN('LayURL'), nil ) .. LayFormat .. LaySource .. LayDate
end
elseif utilities.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 message
end
 
local TranscriptURL = A['TranscriptURL']
local TranscriptFormat = A['TranscriptFormat'];
TranscriptFormat = style_format (TranscriptFormat, TranscriptURL, 'transcript-format', 'transcripturl');
local Transcript = A['Transcript'];
local TranscriptURL_origin = A:ORIGIN('TranscriptURL'); -- get name of parameter that holds TranscriptURL
if utilities.is_set (Transcript) then
if utilities.is_set (TranscriptURL) then
Transcript = external_link( TranscriptURL, Transcript, TranscriptURL_origin, nil );
end
Transcript = sepc .. ' ' .. Transcript .. TranscriptFormat;
elseif utilities.is_set (TranscriptURL) then
Transcript = external_link( TranscriptURL, nil, TranscriptURL_origin, nil );
end
 
local Publisher;
if utilities.is_set (PublicationDate) then
PublicationDate = wrap_msg ('published', PublicationDate);
end
if utilities.is_set (PublisherName) then
if utilities.is_set (PublicationPlace) then
Publisher = sepc .. " " .. PublicationPlace .. ": " .. PublisherName .. PublicationDate;
else
Publisher = sepc .. " " .. PublisherName .. PublicationDate; 
end
elseif utilities.is_set (PublicationPlace) then
Publisher= sepc .. " " .. PublicationPlace .. PublicationDate;
else
Publisher = PublicationDate;
end
local TransPeriodical =  A['TransPeriodical'];
local TransPeriodical_origin =  A:ORIGIN ('TransPeriodical');
-- Several of the above rely upon detecting this as nil, so do it last.
if (utilities.is_set (Periodical) or utilities.is_set (ScriptPeriodical) or utilities.is_set (TransPeriodical)) then
if utilities.is_set (Title) or utilities.is_set (TitleNote) then
Periodical = sepc .. " " .. format_periodical (ScriptPeriodical, ScriptPeriodical_origin, Periodical, TransPeriodical, TransPeriodical_origin);
else
Periodical = format_periodical (ScriptPeriodical, ScriptPeriodical_origin, Periodical, TransPeriodical, TransPeriodical_origin);
end
end
local Language = A['Language'];
if utilities.is_set (Language) then
Language = language_parameter (Language); -- format, categories, name from ISO639-1, etc.
else
Language=''; -- language not specified so make sure this is an empty string;
--[[ TODO: need to extract the wrap_msg from language_parameter
so that we can solve parentheses bunching problem with Format/Language/TitleType
]]
end
 
--[[
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 that
the 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 only
TitleNote = TitleType; -- move TitleType to TitleNote so that it renders ahead of |event=
TitleType = ''; -- and unset
 
if utilities.is_set (Periodical) then -- if Periodical, perhaps because of an included |website= or |journal= parameter
if utilities.is_set (Conference) then -- and if |event= is set
Conference = Conference .. sepc .. " "; -- then add appropriate punctuation to the end of the Conference variable before rendering
end
end
end
 
-- 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 set
if utilities.in_array (config.CitationClass, {"journal", "citation"}) and utilities.is_set (Periodical) then
if utilities.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 utilities.in_array (config.CitationClass, {"book", "citation"}) and not utilities.is_set (Periodical) then -- special cases for book cites
if utilities.is_set (Contributors) then -- when we are citing foreword, preface, introduction, etc.
tcommon = safe_join( {Title, TitleNote}, sepc ); -- author and other stuff will come after this and before tcommon2
tcommon2 = safe_join( {Conference, Periodical, Format, TitleType, Series, Language, Volume, Others, Edition, Publisher, Agency}, sepc );
else
tcommon = safe_join( {Title, TitleNote, Conference, Periodical, Format, TitleType, Series, Language, Volume, Others, Edition, Publisher, Agency}, sepc );
end
 
elseif 'map' == config.CitationClass then -- special cases for cite map
if utilities.is_set (Chapter) then -- map in a book; TitleType is part of Chapter
tcommon = safe_join( {Title, Format, Edition, Scale, Series, Language, Cartography, Others, Publisher, Volume}, sepc );
elseif utilities.is_set (Periodical) then -- map in a periodical
tcommon = safe_join( {Title, TitleType, Format, Periodical, Scale, Series, Language, Cartography, Others, Publisher, Volume}, sepc );
else -- a sheet or stand-alone map
tcommon = safe_join( {Title, TitleType, Format, Edition, Scale, Series, Language, Cartography, Others, Publisher}, sepc );
end
elseif 'episode' == config.CitationClass then -- special case for cite episode
tcommon = safe_join( {Title, TitleNote, TitleType, Series, Language, Edition, Publisher}, sepc );
 
else -- all other CS1 templates
tcommon = safe_join( {Title, TitleNote, Conference, Periodical, Format, TitleType, Series, Language,
Volume, Others, Edition, Publisher, Agency}, sepc );
end
if #ID_list > 0 then
ID_list = safe_join( { sepc .. " ",  table.concat( ID_list, sepc .. " " ), ID }, sepc );
else
ID_list = ID;
end
local Via = A['Via'];
Via = utilities.is_set (Via) and  wrap_msg ('via', Via) or '';
local idcommon;
if 'audio-visual' == config.CitationClass or 'episode' == config.CitationClass then -- special case for cite AV media & cite episode position transcript
idcommon = safe_join( { ID_list, URL, Archived, Transcript, AccessDate, Via, Lay, Quote }, sepc );
else
idcommon = safe_join( { ID_list, URL, Archived, AccessDate, Via, Lay, Quote }, sepc );
end
local text;
local pgtext = Position .. Sheet .. Sheets .. Page .. Pages .. At;
 
local OrigDate = A['OrigDate'];
OrigDate = utilities.is_set (OrigDate) and wrap_msg ('origdate', OrigDate) or '';
if utilities.is_set (Date) then
if utilities.is_set (Authors) or utilities.is_set (Editors) then -- date follows authors or editors when authors not set
Date = " (" .. Date .. ")" .. OrigDate .. sepc .. " "; -- in parentheses
else -- neither of authors and editors set
if (string.sub(tcommon, -1, -1) == sepc) then -- if the last character of tcommon is sepc
Date = " " .. Date .. OrigDate; -- Date does not begin with sepc
else
Date = sepc .. " " .. Date .. OrigDate; -- Date begins with sepc
end
end
end
if utilities.is_set (Authors) then
if (not utilities.is_set (Date)) then -- when date is set it's in parentheses; no Authors termination
Authors = terminate_name_list (Authors, sepc); -- when no date, terminate with 0 or 1 sepc and a space
end
if utilities.is_set (Editors) then
local in_text = " ";
local post_text = "";
if utilities.is_set (Chapter) and 0 == #c then
in_text = in_text .. cfg.messages['in'] .. " "
if (sepc ~= '.') then
in_text = in_text:lower() -- lowercase for cs2
end
end
if EditorCount <= 1 then
post_text = " (" .. cfg.messages['editor'] .. ")"; -- be consistent with no-author, no-date case
else
post_text = " (" .. cfg.messages['editors'] .. ")";
end
Editors = terminate_name_list (in_text .. Editors .. post_text, sepc); -- terminate with 0 or 1 sepc and a space
end
if utilities.is_set (Contributors) then -- book cite and we're citing the intro, preface, etc.
local by_text = sepc .. ' ' .. cfg.messages['by'] .. ' ';
if (sepc ~= '.') then by_text = by_text:lower() end -- lowercase for cs2
Authors = by_text .. Authors; -- author follows title so tweak it here
if utilities.is_set (Editors) and utilities.is_set (Date) then -- when Editors make sure that Authors gets terminated
Authors = terminate_name_list (Authors, sepc); -- terminate with 0 or 1 sepc and a space
end
if (not utilities.is_set (Date)) then -- when date is set it's in parentheses; no Contributors termination
Contributors = terminate_name_list (Contributors, sepc); -- terminate with 0 or 1 sepc and a space
end
text = safe_join( {Contributors, Date, Chapter, tcommon, Authors, Place, Editors, tcommon2, pgtext, idcommon }, sepc );
else
text = safe_join( {Authors, Date, Chapter, Place, Editors, tcommon, pgtext, idcommon }, sepc );
end
elseif utilities.is_set (Editors) then
if utilities.is_set (Date) then
if EditorCount <= 1 then
Editors = Editors .. ", " .. cfg.messages['editor'];
else
Editors = Editors .. ", " .. cfg.messages['editors'];
end
else
if EditorCount <= 1 then
Editors = Editors .. " (" .. cfg.messages['editor'] .. ")" .. sepc .. " "
else
Editors = Editors .. " (" .. cfg.messages['editors'] .. ")" .. sepc .. " "
end
end
text = safe_join( {Editors, Date, Chapter, Place, tcommon, pgtext, idcommon}, sepc );
else
if utilities.in_array (config.CitationClass, {"journal", "citation"}) and utilities.is_set (Periodical) then
text = safe_join( {Chapter, Place, tcommon, pgtext, Date, idcommon}, sepc );
else
text = safe_join( {Chapter, Place, tcommon, Date, pgtext, idcommon}, sepc );
end
end
if utilities.is_set (PostScript) and PostScript ~= sepc then
text = safe_join( {text, sepc}, sepc ); -- Deals with italics, spaces, etc.
text = text:sub(1, -sepc:len() - 1);
end
text = safe_join( {text, PostScript}, sepc );
 
-- Now enclose the whole thing in a <cite> element
local options_t = {};
options_t.class = cite_class_attribute_make (config.CitationClass, Mode);
 
local Ref = is_valid_parameter_value (A['Ref'], A:ORIGIN('Ref'), cfg.keywords_lists['ref'], nil, true); -- nil when |ref=harv; A['Ref'] else
 
if 'none' ~= cfg.keywords_xlate[(Ref and Ref:lower()) or ''] then
local namelist_t = {}; -- holds selected contributor, author, editor name list
local year = first_set ({Year, anchor_year}, 2); -- Year first for legacy citations and for YMD dates that require disambiguation
 
if #c > 0 then -- if there is a contributor list
namelist_t = c; -- select it
elseif #a > 0 then -- or an author list
namelist_t = a;
elseif #e > 0 then -- or an editor list
namelist_t = e;
end
local citeref_id;
if #namelist_t > 0 then -- if there are names in namelist_t
citeref_id = make_citeref_id (namelist_t, year); -- go make the CITEREF anchor
if mw.uri.anchorEncode (citeref_id) == ((Ref and mw.uri.anchorEncode (Ref)) or '') then -- Ref may already be encoded (by {{sfnref}}) so citeref_id must be encoded before comparison
utilities.set_message ('maint_ref_duplicates_default');
end
else
citeref_id = ''; -- unset
end
options_t.id = Ref or citeref_id;
end
 
if string.len (text:gsub('%b<>', '')) <= 2 then -- remove html and html-like tags; then get length of what remains;
z.error_cats_t = {}; -- blank the categories list
z.error_msgs_t = {}; -- blank the error messages list
OCinSoutput = nil; -- blank the metadata string
text = ''; -- blank the the citation
utilities.set_message ('err_empty_citation'); -- set empty citation message and category
end
local render_t = {}; -- here we collect the final bits for concatenation into the rendered citation
 
if utilities.is_set (options_t.id) then -- here we wrap the rendered citation in <cite ...>...</cite> tags
table.insert (render_t, utilities.substitute (cfg.presentation['cite-id'], {mw.uri.anchorEncode(options_t.id), mw.text.nowiki(options_t.class), text})); -- when |ref= is set or when there is a namelist
else
table.insert (render_t, utilities.substitute (cfg.presentation['cite'], {mw.text.nowiki(options_t.class), text})); -- when |ref=none or when namelist_t empty and |ref= is missing or is empty
end
 
if OCinSoutput then -- blanked when citation is 'empty' so don't bother to add boilerplate metadata span
table.insert (render_t, utilities.substitute (cfg.presentation['ocins'], OCinSoutput)); -- format and append metadata to the citation
end
 
local template_name = ('citation' == config.CitationClass) and 'citation' or 'cite ' .. (cfg.citation_class_map_t[config.CitationClass] or config.CitationClass);
local template_link = '[[Template:' .. template_name .. '|' .. template_name .. ']]';
local msg_prefix = '<code class="cs1-code">{{' .. template_link .. '}}</code>: ';
 
if 0 ~= #z.error_msgs_t then
mw.addWarning (utilities.substitute (cfg.messages.warning_msg_e, template_link));
 
table.insert (render_t, ' '); -- insert a space between citation and its error messages
table.sort (z.error_msgs_t); -- sort the error messages list; sorting includes wrapping <span> and <code> tags; hidden-error sorts ahead of visible-error
 
local hidden = true; -- presume that the only error messages emited by this template are hidden
for _, v in ipairs (z.error_msgs_t) do -- spin through the list of error messages
if v:find ('cs1-visible-error', 1, true) then -- look for the visible error class name
hidden = false; -- found one; so don't hide the error message prefix
break; -- and done because no need to look further
end
end
 
z.error_msgs_t[1] = table.concat ({utilities.error_comment (msg_prefix, hidden), z.error_msgs_t[1]}); -- add error message prefix to first error message to prevent extraneous punctuation
table.insert (render_t, table.concat (z.error_msgs_t, '; ')); -- make a big string of error messages and add it to the rendering
end
 
if 0 ~= #z.maint_cats_t then
mw.addWarning (utilities.substitute (cfg.messages.warning_msg_m, template_link));
 
table.sort (z.maint_cats_t); -- sort the maintenance messages list
 
local maint_msgs_t = {}; -- here we collect all of the maint messages
 
if 0 == #z.error_msgs_t then -- if no error messages
table.insert (maint_msgs_t, msg_prefix); -- insert message prefix in maint message livery
end
for _, v in ipairs( z.maint_cats_t ) do -- append maintenance categories
table.insert (maint_msgs_t, -- assemble new maint message and add it to the maint_msgs_t table
table.concat ({v, ' (', utilities.substitute (cfg.messages[':cat wikilink'], v), ')'})
);
end
table.insert (render_t, utilities.substitute (cfg.presentation['hidden-maint'], table.concat (maint_msgs_t, ' '))); -- wrap the group of maint messages with proper presentation and save
end
 
if not no_tracking_cats then
for _, v in ipairs (z.error_cats_t) do -- append error categories
table.insert (render_t, utilities.substitute (cfg.messages['cat wikilink'], v));
end
for _, v in ipairs (z.maint_cats_t) do -- append maintenance categories
table.insert (render_t, utilities.substitute (cfg.messages['cat wikilink'], v));
end
for _, v in ipairs (z.prop_cats_t) do -- append properties categories
table.insert (render_t, utilities.substitute (cfg.messages['cat wikilink'], v));
end
end
 
return table.concat (render_t); -- make a big string and done
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 parameters
false - deprecated, supported parameters
nil - unsupported parameters
]]
 
local function validate (name, cite_class, empty)
local name = tostring (name);
local enum_name; -- for enumerated parameters, is name with enumerator replaced with '#'
local state;
local function state_test (state, name) -- local function to do testing of state values
if true == state then return true; end -- valid actively supported parameter
if false == state then
if empty then return nil; end -- empty deprecated parameters are treated as unknowns
deprecated_parameter (name); -- parameter is deprecated but still supported
return true;
end
if 'tracked' == state then
local base_name = name:gsub ('%d', ''); -- strip enumerators from parameter names that have them to get the base name
utilities.add_prop_cat ('tracked-param', {base_name}, base_name); -- add a properties category; <base_name> modifies <key>
return true;
end
return nil;
end
 
if name:find ('#') then -- # is a cs1|2 reserved character so parameters with # not permitted
return nil;
end
 
if utilities.in_array (cite_class, whitelist.preprint_template_list ) then -- limited parameter sets allowed for these templates
state = whitelist.limited_basic_arguments[name];
if true == state_test (state, name) then return true; end
 
state = whitelist.preprint_arguments[cite_class][name]; -- look in the parameter-list for the template identified by cite_class
if true == state_test (state, name) then return true; end
 
-- limited enumerated parameters list
enum_name = name:gsub("%d+", "#" ); -- replace digit(s) with # (last25 becomes last#) (mw.ustring because non-Western 'local' digits)
state = whitelist.limited_numbered_arguments[enum_name];
if true == state_test (state, name) then return true; end
 
return false; -- not supported because not found or name is set to nil
end -- end limited parameter-set templates
 
if utilities.in_array (cite_class, whitelist.unique_param_template_list) then -- experiment for template-specific parameters for templates that accept parameters from the basic argument list
state = whitelist.unique_arguments[cite_class][name]; -- look in the template-specific parameter-lists for the template identified by cite_class
if true == state_test (state, name) then return true; end
end -- if here, fall into general validation
state = whitelist.basic_arguments[name]; -- all other templates; all normal parameters allowed
if true == state_test (state, name) then return true; end
 
-- all enumerated parameters allowed
enum_name = name:gsub("%d+", "#" ); -- replace digit(s) with # (last25 becomes last#) (mw.ustring because non-Western 'local' digits)
state = whitelist.numbered_arguments[enum_name];
if true == state_test (state, name) then return true; end
 
return false; -- not supported because not found or name is set to nil
end
 
 
--[=[-------------------------< I N T E R _ W I K I _ C H E C K >----------------------------------------------
 
check <value> for inter-language interwiki-link markup.  <prefix> must be a MediaWiki-recognized language
code.  when these values have the form (without leading colon):
[[<prefix>:link|label]] return label as plain-text
[[<prefix>:link]] return <prefix>:link as plain-text
 
return value as is else
 
]=]
 
local function inter_wiki_check (parameter, value)
local prefix = value:match ('%[%[(%a+):'); -- get an interwiki prefix if one exists
local _;
if prefix and cfg.inter_wiki_map[prefix:lower()] then -- if prefix is in the map, needs preceding colon so
utilities.set_message ('err_bad_paramlink', parameter); -- emit an error message
_, value, _ = utilities.is_wikilink (value); -- extract label portion from wikilink
end
return value;
end
 
 
--[[--------------------------< 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 equal
sign, compare the alphanumeric string to the list of cs1|2 parameters.  If found, then the string is possibly a
parameter that is missing its pipe.  There are two tests made:
{{cite ... |title=Title access-date=2016-03-17}} -- the first parameter has a value and whitespace separates that value from the missing pipe parameter name
{{cite ... |title=access-date=2016-03-17}} -- the first parameter has no value (whitespace after the first = is trimmed by MediaWiki)
cs1|2 shares some parameter names with XML/HTML attributes: class=, title=, etc.  To prevent false positives XML/HTML
tags 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 pipes
if capture and validate (capture) then -- if the capture is a valid parameter name
utilities.set_message ('err_missing_pipe', parameter);
end
end
 
 
--[[--------------------------< 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 'number' == type (param) then
return;
end
param = param:gsub ('%d+', '#'); -- enumerated name-list mask params allow terminal punct; normalize
if cfg.punct_skip[param] then
return; -- parameter name found in the skip table so done
end
if value:match ('[,;:]$') then
utilities.set_message ('maint_extra_punct'); -- has extraneous punctuation; add maint cat
end
if value:match ('^=') then -- sometimes an extraneous '=' character appears ...
utilities.set_message ('maint_extra_punct'); -- has extraneous punctuation; add maint cat
end
end
 
 
--[[--------------------------< H A S _ E X T R A N E O U S _ U R L >------------------------------------------
 
look for extraneous url parameter values; parameters listed in skip table are not checked
 
]]
 
local function has_extraneous_url (url_param_t)
local url_error_t = {};
check_for_url (url_param_t, url_error_t); -- extraneous url check
if 0 ~= #url_error_t then -- non-zero when there are errors
table.sort (url_error_t);
utilities.set_message ('err_param_has_ext_link', {utilities.make_sep_list (#url_error_t, url_error_t)}); -- add this error message
end
end
 
 
--[[--------------------------< 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 in case we need to display an error message in preview mode
local sandbox = '/sandbox' -- i18n: replace this rvalue with the name that your wiki uses to identify sandbox subpages
is_sandbox = nil ~= string.find (frame:getTitle(), sandbox, 1, true); -- is this invoke the sandbox module?
sandbox = is_sandbox and sandbox or ''; -- use i18n sandbox to load sandbox modules when this module is the sandox; live modules else
 
local pframe = frame:getParent()
local styles;
cfg = mw.loadData ('Module:Citation/CS1/Configuration' .. sandbox); -- load sandbox versions of support modules when {{#invoke:Citation/CS1/sandbox|...}}; live modules else
whitelist = 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';
 
utilities.set_selected_modules (cfg); -- so that functions in Utilities can see the selected cfg tables
identifiers.set_selected_modules (cfg, utilities); -- so that functions in Identifiers can see the selected cfg tables and selected Utilities module
validation.set_selected_modules (cfg, utilities); -- so that functions in Date validataion can see selected cfg tables and the selected Utilities module
metadata.set_selected_modules (cfg, utilities); -- so that functions in COinS can see the selected cfg tables and selected Utilities module
 
z = utilities.z; -- table of error and category tables in Module:Citation/CS1/Utilities
 
is_preview_mode = not utilities.is_set (frame:preprocess ('{{REVISIONID}}'));
 
local args = {}; -- table where we store all of the template's arguments
local suggestions = {}; -- table where we store suggestions if we need to loadData them
local error_text; -- used as a flag
 
local config = {}; -- table to store parameters from the module {{#invoke:}}
for k, v in pairs( frame.args ) do -- get parameters from the {{#invoke}} frame
config[k] = v;
-- args[k] = v; -- crude debug support that allows us to render a citation from module {{#invoke:}}; skips parameter validation; TODO: keep?
end
 
local capture; -- the single supported capture when matching unknown parameters using patterns
local empty_unknowns = {}; -- sequence table to hold empty unknown params for error message listing
for k, v in pairs( pframe.args ) do -- get parameters from the parent (template) frame
v = mw.ustring.gsub (v, '^%s*(.-)%s*$', '%1'); -- trim leading/trailing whitespace; when v is only whitespace, becomes empty string
if v ~= '' then
if ('string' == type (k)) then
k = mw.ustring.gsub (k, '%d', cfg.date_names.local_digits); -- for enumerated parameters, translate 'local' digits to Western 0-9
end
if not validate( k, config.CitationClass ) then
if type (k) ~= 'string' then -- exclude empty numbered parameters
if v:match("%S+") ~= nil then
error_text = utilities.set_message ('err_text_ignored', {v});
end
elseif validate (k:lower(), config.CitationClass) then
error_text = utilities.set_message ('err_parameter_ignored_suggest', {k, k:lower()}); -- suggest the lowercase version of the parameter
else
if nil == suggestions.suggestions then -- if this table is nil then we need to load it
if is_sandbox then -- did the {{#invoke:}} use sandbox version?
suggestions = mw.loadData( 'Module:Citation/CS1/Suggestions/sandbox' ); -- use the sandbox version
else
suggestions = mw.loadData( 'Module:Citation/CS1/Suggestions' ); -- use the live version
end
end
for pattern, param in pairs (suggestions.patterns) do -- loop through the patterns to see if we can suggest a proper parameter
capture = k:match (pattern); -- the whole match if no capture in pattern else the capture if a match
if capture then -- if the pattern matches
param = utilities.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 = utilities.set_message ('err_parameter_ignored_suggest', {k, param}); -- set the suggestion error message
else
error_text = utilities.set_message ('err_parameter_ignored', {k}); -- suggested param not supported by this template
v = ''; -- unset
end
end
end
if not utilities.is_set (error_text) then -- couldn't match with a pattern, is there an explicit suggestion?
if (suggestions.suggestions[ k:lower() ] ~= nil) and validate (suggestions.suggestions[ k:lower() ], config.CitationClass) then
utilities.set_message ('err_parameter_ignored_suggest', {k, suggestions.suggestions[ k:lower() ]});
else
utilities.set_message ('err_parameter_ignored', {k});
v = ''; -- unset value assigned to unrecognized parameters (this for the limited parameter lists)
end
end
end  
end
 
args[k] = v; -- save this parameter and its value
 
elseif not utilities.is_set (v) then -- for empty parameters
if not validate (k, config.CitationClass, true) then -- is this empty parameter a valid parameter
k = ('' == k) and '(empty string)' or k; -- when k is empty string (or was space(s) trimmed to empty string), replace with descriptive text
table.insert (empty_unknowns, utilities.wrap_style ('parameter', k)); -- format for error message and add to the list
end
-- crude debug support that allows us to render a citation from module {{#invoke:}} TODO: keep?
-- elseif args[k] ~= nil or (k == 'postscript') then -- when args[k] has a value from {{#invoke}} frame (we don't normally do that)
-- args[k] = v; -- overwrite args[k] with empty string from pframe.args[k] (template frame); v is empty string here
end -- not sure about the postscript bit; that gets handled in parameter validation; historical artifact?
end
 
if 0 ~= #empty_unknowns then -- create empty unknown error message
utilities.set_message ('err_param_unknown_empty', {
1 == #empty_unknowns and '' or 's',
utilities.make_sep_list (#empty_unknowns, empty_unknowns)
});
end
 
local url_param_t = {};
 
for k, v in pairs( args ) do
if 'string' == type (k) then -- don't evaluate positional parameters
has_invisible_chars (k, v); -- look for invisible characters
end
has_extraneous_punc (k, v); -- look for extraneous terminal punctuation in parameter values
missing_pipe_check (k, v); -- do we think that there is a parameter that is missing a pipe?
args[k] = inter_wiki_check (k, v); -- when language interwiki-linked parameter missing leading colon replace with wiki-link label
 
if 'string' == type (k) and not cfg.url_skip[k] then -- when parameter k is not positional and not in url skip table
url_param_t[k] = v; -- make a parameter/value list for extraneous url check
end
end
 
has_extraneous_url (url_param_t); -- look for url in parameter values where a url does not belong
 
return table.concat ({
frame:extensionTag ('templatestyles', '', {src=styles}),
citation0( config, args)
});
end
 
 
--[[--------------------------< E X P O R T E D  F U N C T I O N S >------------------------------------------
]]
 
return {citation = citation};
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