વિભાગ:Citation/CS1/COinS

local coins = {};

--[[--------------------------< F O R W A R D D E C L A R A T I O N S >--------------------------------------
]]
local is\_set, in\_array, remove\_wiki\_link; -- functions in Module:Citation/CS1/Utilities

local cfg; -- table of configuration tables that are defined in Module:Citation/CS1/Configuration

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

Strip wiki italic and bold markup from argument so that it doesn't contaminate COinS metadata.
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.

]]

local function strip\_apostrophe\_markup (argument)
 if not is\_set (argument) then return argument; end

 if argument:find ( "*", 1, true ) == nil then -- Is there at least one double apostrophe? If not, exit.*
 return argument;
 end

 while true do
 if argument:find ( "***", 1, true ) then -- bold italic (5)***
 argument=argument:gsub("%'%'%'%'%'", ""); -- remove all instances of it
 elseif argument:find ( "'**", 1, true ) then -- italic start and end without content (4)**
 argument=argument:gsub("%'%'%'%'", "");
 elseif argument:find ( "**", 1, true ) then -- bold (3)**
 argument=argument:gsub("%'%'%'", "");
 elseif argument:find ( "*", 1, true ) then -- italic (2)*
 argument=argument:gsub("%'%'", "");
 else
 break;
 end
 end
 return argument; -- done
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)

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

]]

local function make\_coins\_title (title, script)
 if is\_set (title) then
 title = strip\_apostrophe\_markup (title); -- strip any apostrophe markup
 else
 title=*; -- if not set, make sure title is an empty string*
 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)*
 script = strip\_apostrophe\_markup (script); -- strip any apostrophe markup
 else
 script=*; -- if not set, make sure script is an empty string*
 end
 if is\_set (title) and is\_set (script) then
 script = ' ' .. script; -- add a space before we concatenate
 end
 return title .. script; -- return the concatenation
end

--[[--------------------------< E S C A P E \_ L U A \_ M A G I C \_ C H A R S >----------------------------------

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.
]]

local 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

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

]]

local function get\_coins\_pages (pages)
 local pattern;
 if not is\_set (pages) then return pages; end -- if no page numbers then we're done

 while true do
 pattern = pages:match("%[(%w\*:?//[^ ]+%s+)[%w%d].\*%]"); -- pattern is the opening bracket, the url and following space(s): "[url "
 if nil == pattern then break; end -- no more 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
 pages = pages:gsub("[%[%]]", ""); -- remove the brackets
 pages = pages:gsub("–", "-" ); -- replace endashes with hyphens
 pages = pages:gsub("&%w+;", "-" ); -- and replace html entities (– etc.) with hyphens; do we need to replace numerical entities like and the like?
 return pages;
end

--[=[-------------------------< C O I N S \_ R E P L A C E \_ M A T H \_ S T R I P M A R K E R >------------------

There are three options for math markup rendering that depend on the editor's math preference settings. These
settings are at Special:Preferences#mw-prefsection-rendering and are
 PNG images
 TeX source
 MathML with SVG or PNG fallback

All three are heavy with html and css which doesn't belong in the metadata.

Without this function, the metadata saved in the raw wikitext contained the rendering determined by the settings
of the last editor to save the page.

This function gets the rendered form of an equation according to the editor's preference before the page is saved. It
then searches the rendering for the text equivalent of the rendered equation and replaces the rendering with that so
that the page is saved without extraneous html/css markup and with a reasonably readable text form of the equation.

When a replacement is made, this function returns true and the value with replacement; otherwise false and the intital
value. To replace multipe equations it is necesary to call this function from within a loop.

]=]

local function coins\_replace\_math\_stripmarker (value)
 local stripmarker = cfg.stripmarkers['math'];
 local rendering = value:match (stripmarker); -- is there a math stripmarker

 if not rendering then -- when value doesn't have a math stripmarker, abandon this test
 return false, value;
 end

 rendering = mw.text.unstripNoWiki (rendering); -- convert stripmarker into rendered value (or nil? *? when math render error)*

 if rendering:match ('alt="[^"]+"') then -- if PNG math option
 rendering = rendering:match ('alt="([^"]+)"'); -- extract just the math text
 elseif rendering:match ('$%s+.+%s+%$') then -- if TeX math option; $ is legit character that is escapes as \$
 rendering = rendering:match ('$%s+(.+)%s+%$') -- extract just the math text
 elseif rendering:match ('<annotation[^>]+>.+</annotation>') then -- if MathML math option
 rendering = rendering:match ('<annotation[^>]+>(.+)</annotation>') -- extract just the math text
 else
 return false, value; -- had math stripmarker but not one of the three defined forms
 end

 return true, value:gsub (stripmarker, rendering, 1);
end

--[[--------------------------< C O I N S \_ C L E A N U P >----------------------------------------------------

Cleanup parameter values for the metadata by removing or replacing invisible characters and certain html entities.

2015-12-10: there is a bug in mw.text.unstripNoWiki (). It replaces math stripmarkers with the appropriate content
when it shouldn't. See https://phabricator.wikimedia.org/T121085 and Wikipedia\_talk:Lua#stripmarkers\_and\_mw.text.unstripNoWiki.28.29

TODO: move the replacement patterns and replacement values into a table in /Configuration similar to the invisible
characters table?

]]

local function coins\_cleanup (value)
 local replaced = true; -- default state to get the do loop running

 while replaced do -- loop until all math stripmarkers replaced
 replaced, value = coins\_replace\_math\_stripmarker (value); -- replace math stripmarker with text representation of the equation
 end

 value = value:gsub (cfg.stripmarkers['math'], "MATH RENDER ERROR"); -- one or more couldn't be replaced; insert vague error message

 value = mw.text.unstripNoWiki (value); -- replace nowiki stripmarkers with their content
 value = value:gsub (''(s?)', "'%1"); -- replace Template:' or Template:'s with simple apostrophe or apostrophe-s
 value = value:gsub (' ', ' '); -- replace   entity with plain space
 value = value:gsub ('\226\128\138', ' '); -- replace hair space with plain space
 if not mw.ustring.find (value, cfg.indic\_script) then -- don't remove zero width joiner characters from indic script
 value = value:gsub ('‍', *); -- remove ‍ entities*
 value = mw.ustring.gsub (value, '[\226\128\141\226\128\139\194\173]', *); -- remove zero-width joiner, zero-width space, soft hyphen*
 end
 value = value:gsub ('[\009\010\013]', ' '); -- replace horizontal tab, line feed, carriage return with plain space
 return value;
end

--[[--------------------------< C O I N S >--------------------------------------------------------------------

COinS metadata (see <http://ocoins.info/>) allows automated tools to parse the citation information.

]]

local function COinS(data, class)
 if 'table' ~= type(data) or nil == next(data) then
 return *;*
 end

 for k, v in pairs (data) do -- spin through all of the metadata parameter values
 if 'ID\_list' ~= k and 'Authors' ~= k then -- except the ID\_list and Author tables (author nowiki stripmarker done when Author table processed)
 data[k] = coins\_cleanup (v);
 end
 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( remove\_wiki\_link( value ) ) } );
 end
 end
 });

 if in\_array (class, {'arxiv', 'biorxiv', 'citeseerx', 'journal', 'news'}) or (in\_array (class, {'conference', 'interview', 'map', 'press release', 'web'}) and is\_set(data.Periodical)) or
 ('citation' == class and is\_set(data.Periodical) and not is\_set (data.Encyclopedia)) then
 OCinSoutput.rft\_val\_fmt = "info:ofi/fmt:kev:mtx:journal"; -- journal metadata identifier
 if in\_array (class, {'arxiv', 'biorxiv', 'citeseerx'}) then -- set genre according to the type of citation template we are rendering
 OCinSoutput["rft.genre"] = "preprint"; -- cite arxiv, cite biorxiv, cite citeseerx
 elseif 'conference' == class then
 OCinSoutput["rft.genre"] = "conference"; -- cite conference (when Periodical set)
 elseif 'web' == class then
 OCinSoutput["rft.genre"] = "unknown"; -- cite web (when Periodical set)
 else
 OCinSoutput["rft.genre"] = "article"; -- journal and other 'periodical' articles
 end
 OCinSoutput["rft.jtitle"] = data.Periodical; -- journal only
 OCinSoutput["rft.atitle"] = data.Title; -- 'periodical' article titles

 -- these used only for periodicals
 OCinSoutput["rft.ssn"] = data.Season; -- keywords: winter, spring, summer, fall
 OCinSoutput["rft.chron"] = data.Chron; -- free-form date components
 OCinSoutput["rft.volume"] = data.Volume; -- does not apply to books
 OCinSoutput["rft.issue"] = data.Issue;
 OCinSoutput["rft.pages"] = data.Pages; -- also used in book metadata

 elseif 'thesis' ~= class then -- all others except cite thesis are treated as 'book' metadata; genre distinguishes
 OCinSoutput.rft\_val\_fmt = "info:ofi/fmt:kev:mtx:book"; -- book metadata identifier
 if 'report' == class or 'techreport' == class then -- cite report and cite techreport
 OCinSoutput["rft.genre"] = "report";
 elseif 'conference' == class then -- cite conference when Periodical not set
 OCinSoutput["rft.genre"] = "conference";
 OCinSoutput["rft.atitle"] = data.Chapter; -- conference paper as chapter in proceedings (book)
 elseif in\_array (class, {'book', 'citation', 'encyclopaedia', 'interview', 'map'}) then
 if is\_set (data.Chapter) then
 OCinSoutput["rft.genre"] = "bookitem";
 OCinSoutput["rft.atitle"] = data.Chapter; -- book chapter, encyclopedia article, interview in a book, or map title
 else
 if 'map' == class or 'interview' == class then
 OCinSoutput["rft.genre"] = 'unknown'; -- standalone map or interview
 else
 OCinSoutput["rft.genre"] = 'book'; -- book and encyclopedia
 end
 end
 else --{'audio-visual', 'AV-media-notes', 'DVD-notes', 'episode', 'interview', 'mailinglist', 'map', 'newsgroup', 'podcast', 'press release', 'serial', 'sign', 'speech', 'web'}
 OCinSoutput["rft.genre"] = "unknown";
 end
 OCinSoutput["rft.btitle"] = data.Title; -- book only
 OCinSoutput["rft.place"] = data.PublicationPlace; -- book only
 OCinSoutput["rft.series"] = data.Series; -- book only
 OCinSoutput["rft.pages"] = data.Pages; -- book, journal
 OCinSoutput["rft.edition"] = data.Edition; -- book only
 OCinSoutput["rft.pub"] = data.PublisherName; -- book and dissertation

 else -- cite thesis
 OCinSoutput.rft\_val\_fmt = "info:ofi/fmt:kev:mtx:dissertation"; -- dissertation metadata identifier
 OCinSoutput["rft.title"] = data.Title; -- dissertation (also patent but that is not yet supported)
 OCinSoutput["rft.degree"] = data.Degree; -- dissertation only
 OCinSoutput['rft.inst'] = data.PublisherName; -- book and dissertation
 end
 -- and now common parameters (as much as possible)
 OCinSoutput["rft.date"] = data.Date; -- book, journal, dissertation

 for k, v in pairs( data.ID\_list ) do -- what to do about these? For now assume that they are common to all?
-- if k == 'ISBN' then v = clean\_isbn( v ) end
 if k == 'ISBN' then v = v:gsub( "[^-0-9X]", "" ); end
 local id = cfg.id\_handlers[k].COinS;
 if string.sub( id or "", 1, 4 ) == 'info' then -- for ids that are in the info:registry
 OCinSoutput["rft\_id"] = table.concat{ id, "/", v };
 elseif string.sub (id or "", 1, 3 ) == 'rft' then -- for isbn, issn, eissn, etc that have defined COinS keywords
 OCinSoutput[ id ] = v;
 elseif id then -- when cfg.id\_handlers[k].COinS is not nil
 OCinSoutput["rft\_id"] = table.concat{ cfg.id\_handlers[k].prefix, v }; -- others; provide a url
 end
 end

--[[
 for k, v in pairs( data.ID\_list ) do -- what to do about these? For now assume that they are common to all?
 local id, value = cfg.id\_handlers[k].COinS;
 if k == 'ISBN' then value = clean\_isbn( 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 = coins\_cleanup (v.last), coins\_cleanup (v.first or *); -- replace any nowiki strip markers, non-printing or invisible characers*
 if k == 1 then -- for the first author name only
 if is\_set(last) and is\_set(first) then -- set these COinS values if |first= and |last= specify the first author name
 OCinSoutput["rft.aulast"] = last; -- book, journal, dissertation
 OCinSoutput["rft.aufirst"] = first; -- book, journal, dissertation
 elseif is\_set(last) then
 OCinSoutput["rft.au"] = last; -- book, journal, dissertation -- otherwise use this form for the first name
 end
 else -- for all other authors
 if is\_set(last) and is\_set(first) then
 OCinSoutput["rft.au"] = table.concat{ last, ", ", first }; -- book, journal, dissertation
 elseif is\_set(last) then
 OCinSoutput["rft.au"] = last; -- book, journal, dissertation
 end
 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

--[[--------------------------< S E T \_ S E L E C T E D \_ M O D U L E S >--------------------------------------

Sets local cfg table and imported functions table to same (live or sandbox) as that used by the other modules.

]]

local function set\_selected\_modules (cfg\_table\_ptr, utilities\_page\_ptr)
 cfg = cfg\_table\_ptr;

 is\_set = utilities\_page\_ptr.is\_set; -- import functions from select Module:Citation/CS1/Utilities module
 in\_array = utilities\_page\_ptr.in\_array;
 remove\_wiki\_link = utilities\_page\_ptr.remove\_wiki\_link;
end

return {
 make\_coins\_title = make\_coins\_title,
 get\_coins\_pages = get\_coins\_pages,
 COinS = COinS,
 set\_selected\_modules = set\_selected\_modules,
 }