Module:Cite archive

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

--[[--< I S _ S E T >--

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  and  ', 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 =  .. 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 ; ', 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 has a value when it is called.
 * type= with appropriate markup to complete the item portion of the citation. This function assumes that item

]]

local function make_item (item, url, item_date, item_type) 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 table.insert (output, string.format ('"%s"', item));						-- enclose in quotes and add to table 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  and  ; ', 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 %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 CITEREF anchor if 'harv' == args.ref then cite_open_tag = ''; elseif is_set (args.ref) then cite_open_tag = ''; else cite_open_tag = ''; 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));	-- 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

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

-- and put it all together and be done return string.format ('%s%s%s %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 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 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.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 ('  required; ', code_style); end if not is_set (args.institution) then args.err_msg = string.format ('%s  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 .. ' (help) ';	-- with an error message end

-- standard cs1|2 parameters args.accessdate = pframe.args['access-date'] or pframe.args.accessdate 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 if not is_set (args.ref) then											-- if not already set to something args.ref= 'harv';													-- for cs2, set to harv end args.retrieved = args.retrieved:lower; end

return _cite_archive (args);											-- go render the citation end

return f;