imported>GreenC at 05:19, 5 September 2025

2025-09-05T05:19:37Z

New page

require('strict')
local f = {};
local code_style="color:inherit; border:inherit; padding:inherit;"; -- used in styling error messages

local lock_icons = { --icon classes are defined in Module:Citation/CS1/styles.css
['free'] = {'cs1-lock-free', 'Freely accessible'},
['registration'] = {'cs1-lock-registration', 'Free registration required'},
['limited'] = {'cs1-lock-limited', 'Free access subject to limited trial, subscription normally required'},
['subscription'] = {'cs1-lock-subscription', 'Paid subscription required'},
}

--[[--------------------------------------------------------------------------------------------

Whether variable is set or not. A variable is set when it is not nil and not empty.

]]

local function is_set( var )
return not (var == nil or var == '');
end

--[[--------------------------< S E L E C T _ O N E >----------------------------------------------------------

Choose one parameter value from a list of parameter values. If more than one is set, emit error message.

]]

local function select_one (list, args)
local selected_param;
local selected_val='';

for param, value in pairs (list) do -- loop through the list
if not is_set (selected_param) then -- if we have not yet selected a parameter value
if is_set (value) then -- is this value set?
selected_val = value; -- select it
selected_param = param; -- remember the name for possible error message
end
else
if is_set (value) then -- error message if we have selected and found another set parameter
args.err_msg = string.format (
' more than one of <code style="%s">|%s=</code> and <code style="%s">|%s=</code>',
code_style, selected_param, code_style, param
)
break;
end
end
end
return selected_val or ''; -- return selected value or empty string if none set
end

--[[--------------------------< M A K E _ N A M E >------------------------------------------------------------

Assembles last, first, link, or mask into a displayable author name.

]]

local function make_name (last, first, link, mask)
local name = last;

if is_set (first) then
name = name .. ', ' .. first; -- concatenate first onto last
end

if is_set (link) then
name = '[[' .. link .. '|' .. name .. ']]'; -- form a wikilink around the name
end

if is_set (mask) then -- mask this author
mask = tonumber (mask); -- because the value provided might not be a number
if is_set (mask) then
name = string.rep ('—', mask) -- make a string that number length of mdashes
end
end

return name;
end

--[[-------------------------< M A K E _ A U T H O R _ L I S T >----------------------------------------------

form the authors display list:
if |display-authors= is empty or omitted, display is similar to cs1|2: display all names in last, first order
if |display-authors=etal then displays all author names in last, first order and append et al.
if value assigned to |display-authors= is less than the number of author last names, displays the specified number of author names in last, first order followed by et al.

]]

local function make_author_list (args, number_of_authors)
local authors = '';
local i = 1;
local count;
local etal = false; -- when |display-authors= is same as number of authors in contributor list

if is_set (args.display_authors) then
if 'etal' == args.display_authors:lower():gsub("[ '%.]", '') then -- the :gsub() portion makes 'etal' from a variety of 'et al.' spellings and stylings
count = number_of_authors; -- display all authors and ...
etal = true; -- ... append 'et al.'
else
count = tonumber (args.display_authors) or 0; -- 0 if can't be converted to a number
if 0 >= count then
args.err_msg = string.format ('%s invalid <code style="%s">|display-authors=</code>; ', args.err_msg, code_style);
-- args.err_msg = args.err_msg .. ' invalid |display-authors='; -- if zero, then emit error message
count = number_of_authors; -- and display all authors
end
end
if count > number_of_authors then
count = number_of_authors; -- when |display-authors= is more than the number of authors, use the number of authors
end
if count < number_of_authors then -- when |display-authors= is less than the number of authors
etal = true; -- append 'et al.'
end
else
count = number_of_authors; -- set count to display all of the authors
end

while i <= count do
if is_set (authors) then
authors = authors .. '; ' .. make_name (args.last[i], args.first[i], args.link[i], args.mask[i]); -- the rest of the authors
else
authors = make_name (args.last[i], args.first[i], args.link[i], args.mask[i]); -- first author's name
end
i = i+1; -- bump the index
end
if true == etal then
authors = authors .. '; et al.'; -- append et al.
elseif 'yes' == args.last_author_amp then
authors = authors:gsub('; ([^;]+)$', ' & %1') -- replace last separator with ' & '
end

-- if args.sepc ~= authors:sub(-1) and args.sepc .. ']]' ~= authors:sub(-3) then
-- authors = authors; -- add separator if not same as last character in name list (|first=John S. or et al.)
-- end
-- TODO: better way to handle wikilink case?
authors = authors:gsub ('%' .. args.sepc .. '$', '', 1); -- remove trailing separator character
authors = authors:gsub ('%' .. args.sepc .. ']]$', ']]', 1); -- remove trailing separator character inside wikilink

return authors;
end

--[[--------------------------< M A K E _ I T E M >------------------------------------------------------------

This function formats |item= and, if present, |item-url= into the linked part and if present appends |date= and
|type= with appropriate markup to complete the item portion of the citation. This function assumes that item
has a value when it is called.

]]

local function make_item (item, url, item_date, item_type, item_access)
local output = {}; -- table of item bits
if is_set (url) then
item = string.format ('[%s %s]', url, item); -- make item into an external wikilink
end
if item_access and ('subscription' == item_access or 'registration' == item_access) then
table.insert (output, table.concat ({ -- opening quote mark then add access icon markup to this item
'"<span class="', -- open the opening span tag; icon classes are defined in Module:Citation/CS1/styles.css
lock_icons[item_access][1], -- add the appropriate lock icon class
'" title="', -- and the title attribute
lock_icons[item_access][2], -- for an appropriate tool tip
'">', -- close the opening span tag
item,
'"', -- and close the span and close the quote
}));
else
table.insert (output, string.format ('"%s"', item)); -- enclose in quotes and add to table
end
if is_set (item_date) then
table.insert (output, string.format ('(%s)', item_date)); -- enclose in parentheses and add to table
end
if is_set (item_type) then
table.insert (output, string.format ('[%s]', item_type)); -- enclose in square brackets and add to table
end

return table.concat (output, ' '); -- concatenate with space as separator
end

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

This function formats |collection= and, if present, |collection-url= into the linked part and if present, appends
the values from |fonds=, |series=, |box=, |file=, |itemid=, and |page= or |pages= to complete the collection
portion of the citation. This function assumes that collection has a value when it is called (because that is one
of the two required parameters)

]]

local function make_collection (args)
local output = {}; -- table of collections bits
local collection = args.collection;
if is_set (args.collectionURL) then
collection = string.format ('[%s %s]', args.collectionURL, collection); -- make collection into an external wikilink
end
table.insert (output, string.format ('%s', collection)); -- enclose in quotes and add to table
if is_set (args.fonds) then
table.insert (output, string.format ('Fonds: %s', args.fonds)); -- format and add to table
end
if is_set (args.series) then
table.insert (output, string.format ('Series: %s', args.series)); -- format and add to table
end
if is_set (args.box) then
table.insert (output, string.format ('Box: %s', args.box)); -- format and add to table
end
if is_set (args.file) then
table.insert (output, string.format ('File: %s', args.file)); -- format and add to table
end
if is_set (args.itemID) then
table.insert (output, string.format ('ID: %s', args.itemID)); -- format and add to table
end

if is_set (args.p) then
table.insert (output, string.format ('%s%s', args.page_sep, args.p));
elseif is_set (args.pp) then
table.insert (output, string.format ('%s%s', args.pages_sep, args.pp));
end

if is_set (args.p) and is_set (args.pp) then
args.err_msg = string.format ('%s more than one of <code style="%s">|page=</code> and <code style="%s">|pages=</code>; ', args.err_msg, code_style, code_style);
end

return table.concat (output, ', '); -- concatenate with comma space as separator
end

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

This function formats |location=, |repository, and |institution= into the location portion of the citation.
This function assumes that |institution= (a required parameter) has a value when it is called.

Unlike other groups of parameters, the required parameter is the 'last' and separator characters are not all the same.

]]

local function make_location (location, repository, institution)
local output = {}; -- table of location bits
if is_set (location) then
location = string.format ('%s: ', location); -- format
end
if is_set (repository) then
table.insert (output, repository); -- and add to table
end
table.insert (output, institution); -- and add to table

return string.format ('%s%s', location, table.concat (output, ', ')); -- concatenate with comma space separators
end

--[[--------------------------< M A K E _ I D E N T I F I E R S >----------------------------------------------

This function formats |oclc= and |accession into the identifiers portion of the citation. Neither of these
parameters are required.

]]

local function make_identifiers (args)
local output = {}; -- table ofidentifier bits
if is_set (args.oclc) then
table.insert (output, string.format ('[[OCLC]] [https://www.worldcat.org/oclc/ %s]', args.oclc));
end
if is_set (args.accession) then
table.insert (output, args.accession);
end
return table.concat (output, args.sepc .. ' '); -- concatenate with sepc space as separator
end

--[[--------------------------< _ C I T E _ A R C H I V E >----------------------------------------------------

Assembles the various parts provided by the template into a properly formatted citation. Adds punctuation
and text; encloses the whole within a cite tag with id and class attributes.

This creates a CITEREF anchor from |last1= through |last4= and the year portion of |date= when |ref=harv.

]]

local function _cite_archive (args)
local cite_open_tag; -- holds CITEREF and css
local authors = ''; -- list of authors
local identifiers = ''; -- OCLC and accession identifiers list
local result = {}; -- the assembly of the citation's output

-- form the anchor ID
if is_set (args.ref) and 'none' ~= args.ref and 'harv' ~= args.ref then -- |ref= has a value that is not 'none' and not 'harv' so use that value as the anchor ID
cite_open_tag = '<cite id="' .. args.ref .. '" class="citation archive">';
elseif 0 ~= #args.citeref and 'none' ~= args.ref then -- there is an author list and |ref= has a value that is not 'none' so create a CITEREF anchor
cite_open_tag = '<cite id="CITEREF' .. table.concat (args.citeref) .. args.year .. '" class="citation archive">';
else
cite_open_tag = '<cite class="citation archive">'; -- no author list or |ref=none; no anchor ID
end

if 0 ~= #args.last then -- if there are author names
table.insert (result, make_author_list (args, #args.last)); -- assemble author name list and add to result table
end

if is_set (args.item) then -- if there is an item
table.insert (result, make_item (args.item, args.itemURL, args.date, args.type, args.item_access)); -- build the item portion of the citation
end

table.insert (result, make_collection (args)); -- build the collection portion of the citation (|collection= is required)

table.insert (result, make_location (args.location, args.repository, args.institution)); -- build the location portion of the citation (institution= is required)

identifiers = make_identifiers (args); -- build the identifiers (oclc and accession) portion of the citation
if is_set (identifiers) then
table.insert (result, identifiers);
end

if is_set (args.accessdate) then
table.insert (result, args.retrieved .. args.accessdate);
end

if is_set (args.via) then
table.insert (result, args.viastr .. args.via);
end

-- wrap error messages in span and add help link
if is_set (args.err_msg) then
args.err_msg = ' cite archive:' .. args.err_msg .. ' ([[Template:cite archive|help]])';
end

-- and put it all together and be done
return string.format ('%s%s%s</cite>%s', cite_open_tag, table.concat (result, args.sepc .. ' '), args.ps, args.err_msg);
end

--[[--------------------------< F . C I T E _ A R C H I V E >--------------------------------------------------

Entry point from {{cite archive}} template. Fetches parent frame parameters, does a bit of simple error checking
and calls _cite_archive() if required parameters are present.

]]

function f.cite_archive (frame)
local args = {
err_msg = '',
page_sep = "p. ", -- cs1|2 style page(s) prefixes
pages_sep = "pp. ",
retrieved = 'Retrieved ', -- cs1 style access date static text
viastr = ' – via ',
sepc = '.', -- default to cs1 stylre
ps = '.', -- default to cs1 stylre
last = {}, -- table of author last name values
first = {}, -- table of author first name values
link = {}, -- table of author link values
mask = {}, -- table of author mask values
citeref = {} -- table of last names that will be used in making the CITEREF anchor
}

local pframe = frame:getParent(); -- get template's parameters

args.item = pframe.args.item or ''; -- these are the 'item' group
args.itemURL = pframe.args['item-url'] or '';
args.item_access = pframe.args['item-url-access'];
args.type = pframe.args.type or '';
args.date = pframe.args.date or '';

args.year = args.date:match ('%d%d%d%d') or ''; -- used in creation of the CITEREF anchor

args.collection = pframe.args.collection or ''; -- these are the collection group
args.collectionURL = pframe.args['collection-url'] or '';
args.fonds = pframe.args.fonds or '';
args.series = pframe.args.series or '';
args.file = pframe.args.file or '';
args.box = pframe.args.box or '';
args.itemID = pframe.args['item-id'] or '';
args.p = pframe.args.page or pframe.args.p or ''; -- if both are set, the singular is rendered
args.pp = pframe.args.pages or pframe.args.pp or '';

args.repository = pframe.args.repository or ''; -- these are the location group
args.location = pframe.args.location or '';
args.institution = pframe.args.institution or ''; -- required parameter

args.oclc = pframe.args.oclc or ''; -- these are the identifiers group
args.accession = pframe.args.accession or '';

if not is_set (args.collection) then -- check for required parameters
args.err_msg = string.format (' <code style="%s">|collection=</code> required; ', code_style);
end
if not is_set (args.institution) then
args.err_msg = string.format ('%s <code style="%s">|institution=</code> required; ', args.err_msg, code_style);
end

if is_set (args.err_msg) then -- if set here, then we are missing one or both required parameters so quit
return 'cite archive:' .. args.err_msg .. ' ([[Template:cite archive|help]])'; -- with an error message
end

-- standard cs1|2 parameters
args.accessdate = pframe.args['access-date'] or pframe.args.accessdate or '';

args.via = pframe.args['via'] or pframe.args.via or '';

args.ref = pframe.args.ref or '';

args.display_authors = pframe.args['display-authors']; -- the number of author names to display
args.last_author_amp = pframe.args['last-author-amp'] or -- yes only; |last-author-amp=no does not work
pframe.args['lastauthoramp'] or '';
args.last_author_amp:lower(); -- make it case agnostic

if is_set (pframe.args['last1']) or is_set (pframe.args['last']) or
is_set (pframe.args['author1']) or is_set (pframe.args['author']) then -- must have at least this to continue

args.last[1] = select_one ({ -- get first author's last name
['last']=pframe.args.last,
['last1'] = pframe.args.last1,
['author'] = pframe.args.author,
['author1'] = pframe.args.author1}, args);
args.citeref[1] = args.last[1]; -- add it to the citeref

args.first[1] = select_one ({ -- get first author's first name
['first'] = pframe.args.first,
['first1'] = pframe.args.first1}, args);
args.link[1] = select_one ({ -- get first author's article link
['author-link'] = pframe.args['author-link'],
['author-link1'] = pframe.args['author-link1']}, args);
args.mask[1] = select_one ({ -- get first author's mask
['author-mask'] = pframe.args['author-mask'],
['author-mask1'] = pframe.args['author-mask1']}, args);

local i = 2; -- index for the rest of the names
while is_set (pframe.args['last'..i]) or is_set (pframe.args['author'..i]) do -- loop through pframe.args and get the rest of the names
args.last[i] = pframe.args['last'..i] or pframe.args['author'..i]; -- last names
args.first[i] = pframe.args['first'..i]; -- first names
args.link[i] = pframe.args['author-link'..i]; -- author-links
args.mask[i] = pframe.args['author-mask'..i]; -- author-masks
if 5 > i then
args.citeref[i] = args.last[i]; -- collect first four last names for CITEREF anchor
end
i = i + 1 -- bump the index
end
end

if 'cs2' == pframe.args.mode then
args.ps = ''; -- set postscript character to empty string, cs2 mode
args.sepc = ','; -- set separator character to comma, cs2 mode
args.retrieved = args.retrieved:lower();
end

return table.concat ({
frame:extensionTag ('templatestyles', '', {src='Module:Citation/CS1/styles.css'}), -- add template styles for access icons and .citation
_cite_archive (args) -- go render the citation
});
end

return f;

Module:Cite archive - Revision history

imported>GreenC at 05:19, 5 September 2025