Module:Footnotes: verschil tussen versies

Uit Wiki Raamsdonks Historie
(Replace Module:No globals with require( "strict" ))
k (1 versie geïmporteerd)
 
(Een tussenliggende versie door dezelfde gebruiker niet weergegeven)
Regel 1: Regel 1:
require('strict');
require('Module:No globals');
local getArgs = require ('Module:Arguments').getArgs;
 


--[[--------------------------< A R G S _ D E F A U L T >------------------------------------------------------
--[[--------------------------< A R G S _ D E F A U L T >------------------------------------------------------
Regel 21: Regel 19:
pages_sep = ", pp.&nbsp;",
pages_sep = ", pp.&nbsp;",
ref = '',
ref = '',
template = 'harv', -- if template name not provided in {{#invoke:}} use this
};
};
--[[--------------------------< T A R G E T _ C H E C K >------------------------------------------------------
look for anchor_id (CITEREF name-list and year or text from |ref=) in anchor_id_list
the 'no target' error may be suppressed with |ignore-err=yes when target cannot be found because target is inside
a template that wraps another template; 'multiple targets' error may not be suppressed
]]
local function target_check (anchor_id, args)
local namespace = mw.title.getCurrentTitle().namespace;
local anchor_id_list_module = mw.loadData ('Module:Footnotes/anchor_id_list');
local anchor_id_list = anchor_id_list_module.anchor_id_list;
local article_whitelist = anchor_id_list_module.article_whitelist;
local template_list = anchor_id_list_module.template_list;
local whitelist_module = mw.loadData ('Module:Footnotes/whitelist');
local whitelist = whitelist_module.whitelist;
local special_patterns = whitelist_module.special_patterns;
local DNB_special_patterns = whitelist_module.DNB_special_patterns;
local DNB_template_names = whitelist_module.DNB_template_names;
if 10 == namespace then
return ''; -- automatic form of |no-tracking=yes; TODO: is this too broad?
end
local tally = anchor_id_list[anchor_id]; -- nil when anchor_id not in list; else a tally
local msg;
local category;
if not tally then
if args.ignore then
return ''; -- if ignore is true then no message, no category
end
if article_whitelist and article_whitelist[anchor_id] then -- if an article-local whitelist and anchor ID is in it
return ''; -- done
end
local wl_anchor_id = anchor_id; -- copy to be modified to index into the whitelist
if args.year then -- for anchor IDs created by this template (not in |ref=) that have a date
if args.year:match ('%d%l$') or -- use the date value to determine if we should remove the disambiguator
args.year:match ('n%.d%.%l$') or
args.year:match ('nd%l$') then
wl_anchor_id = wl_anchor_id:gsub ('%l$', ''); -- remove the disambiguator
end
end
local t_tbl = whitelist[wl_anchor_id]; -- get list of templates associated with this anchor ID
if t_tbl then -- when anchor ID not whitelisted t_tbl is nil
for _, t in ipairs (t_tbl) do -- spin through the list of templates associated with this anchor ID
if template_list[t] then -- if associated template is found in the list of templates in the article
return ''; -- anchor ID is whitlisted and article has matching template so no error
end
end
end
for _, pattern in ipairs (special_patterns) do -- spin through the spcial patterns and try to match
if anchor_id:match (pattern) then
return '';
end
end
for _, dnb_t in ipairs (DNB_template_names or {}) do -- getting desparate now, are there any DNB templates? DNB_template_names may be nil; empty table prevents script error
if template_list[dnb_t] then -- if the article has this DNB template
for _, pattern in ipairs (DNB_special_patterns) do -- spin through the DNB-specifiec wildcard patterns
if anchor_id:match (pattern) then -- and attempt a match
return ''; -- found a match
end
end
end
end
msg = 'no target: ' .. anchor_id; -- anchor_id not found
category = '[[Category:Harv and Sfn no-target errors]]';
elseif 1 < tally then
msg = 'multiple targets (' .. tally .. '×): ' .. anchor_id; -- more than one anchor_id in this article
category = 0 == namespace and '[[Category:Harv and Sfn multiple-target errors]]' or ''; -- only categorize in article space
return '<span class="error harv-error" style="display: inline; font-size:100%"> ' .. args.template .. ' error: ' .. msg .. ' ([[:Category:Harv and Sfn template errors|help]])</span>' .. category;
end
-- category = 0 == namespace and '[[Category:Harv and Sfn template errors]]' or ''; -- only categorize in article space
category = 0 == namespace and category or ''; -- only categorize in article space
--use this version to show error messages
-- return msg and '<span class="error harv-error" style="display: inline; font-size:100%"> ' .. args.template .. ' error: ' .. msg .. ' ([[:Category:Harv and Sfn template errors|help]])</span>' .. category or '';
--use this version to hide error messages
return msg and '<span class="error harv-error" style="display: none; font-size:100%"> ' .. args.template .. ' error: ' .. msg .. ' ([[:Category:Harv and Sfn template errors|help]])</span>' .. category or '';
end




Regel 128: Regel 30:
c. YYYY
c. YYYY
YYYY–YYYY (separator is endash)
YYYY–YYYY (separator is endash)
YYYY–YY (separator is endash)


return true when param has a recognized form; false else
return true when param has a recognized form; false else
Regel 134: Regel 35:
]]
]]


local patterns_date= {
local function is_year (param)
'^%d%d%d%d?%l?$',
return param:match ('^%d%d%d%d?%l?$') or param:match ('^n%.d%.%l?$') or param:match ('^nd%l?$') or param:match ('^c%. %d%d%d%d?%l?$') or param:match ('^%d%d%d%d–%d%d%d%d%l?$');
'^n%.d%.%l?$',
'^nd%l?$',
'^c%. %d%d%d%d?%l?$',
'^%d%d%d%d–%d%d%d%d%l?$',
'^%d%d%d%d–%d%d%l?$',
}
 
local function is_year (param, args)
args.year = ''; -- used for harv error;
for _, pattern in ipairs (patterns_date) do
if mw.ustring.match (param, pattern) then
args.year = param; -- used for harv error;
return true;
end
end
end
end


Regel 163: Regel 48:
local function core( args )
local function core( args )
local result;
local result;
local err_msg = ''


if args.P5 ~= '' then
if args.P5 ~= '' then
if is_year (args.P5, args) then
if is_year (args.P5) then
result = table.concat ({args.P1, ' et al. ', args.bracket_year_left, args.P5, args.bracket_year_right});
result = table.concat ({args.P1, ' et al. ', args.bracket_year_left, args.P5, args.bracket_year_right});
else
else
Regel 174: Regel 58:


elseif args.P4 ~= '' then
elseif args.P4 ~= '' then
if is_year (args.P4, args) then
if is_year (args.P4) then
result = table.concat ({args.P1, ', ', args.P2, ' &amp; ', args.P3, ' ', args.bracket_year_left, args.P4, args.bracket_year_right}); -- three names and a year
result = table.concat ({args.P1, ', ', args.P2, ' &amp; ', args.P3, ' ', args.bracket_year_left, args.P4, args.bracket_year_right}); -- three names and a year
else
else
Regel 181: Regel 65:


elseif args.P3 ~= '' then
elseif args.P3 ~= '' then
if is_year (args.P3, args) then
if is_year (args.P3) then
result = table.concat ({args.P1, ' &amp; ', args.P2, ' ', args.bracket_year_left, args.P3, args.bracket_year_right}); -- two names and a year
result = table.concat ({args.P1, ' &amp; ', args.P2, ' ', args.bracket_year_left, args.P3, args.bracket_year_right}); -- two names and a year
else
else
Regel 188: Regel 72:
elseif args.P2 ~= '' then
elseif args.P2 ~= '' then
if is_year (args.P2, args) then
if is_year (args.P2) then
result = table.concat ({args.P1, ' ', args.bracket_year_left, args.P2, args.bracket_year_right}); -- one name and year
result = table.concat ({args.P1, ' ', args.bracket_year_left, args.P2, args.bracket_year_right}); -- one name and year
else
else
Regel 207: Regel 91:
if args.ref ~= 'none' then
if args.ref ~= 'none' then
local anchor_id;
if args.ref ~= '' then
if args.ref ~= '' then
anchor_id = mw.uri.anchorEncode (args.ref);
result = table.concat ({'[[#', mw.uri.anchorEncode (args.ref), '|', result, ']]'});
err_msg = target_check (anchor_id, args);
result = table.concat ({'[[#', anchor_id, '|', result, ']]'});
else
else
anchor_id = mw.uri.anchorEncode (table.concat ({'CITEREF', args.P1, args.P2, args.P3, args.P4, args.P5}));
result = table.concat ({'[[#CITEREF', mw.uri.anchorEncode (table.concat ({args.P1, args.P2, args.P3, args.P4, args.P5})), '|', result, ']]'});
err_msg = target_check (anchor_id, args);
result = table.concat ({'[[#', anchor_id, '|', result, ']]'});
end
end
end
end
Regel 230: Regel 109:


result = table.concat ({args.bracket_left, result, args.bracket_right, args.postscript}):gsub ('%s+', ' '); -- strip redundant spaces
result = table.concat ({args.bracket_left, result, args.bracket_right, args.postscript}):gsub ('%s+', ' '); -- strip redundant spaces
return result .. err_msg;
return result;
end
 
 
--[[--------------------------< H Y P H E N _ T O _ D A S H >--------------------------------------------------
 
Converts a hyphen to a dash under certain conditions.  The hyphen must separate
like items; unlike items are returned unmodified.  These forms are modified:
letter - letter (A - B)
digit - digit (4-5)
digit separator digit - digit separator digit (4.1-4.5 or 4-1-4-5)
letterdigit - letterdigit (A1-A5) (an optional separator between letter and
digit is supported – a.1-a.5 or a-1-a-5)
digitletter - digitletter (5a - 5d) (an optional separator between letter and
digit is supported – 5.a-5.d or 5-a-5-d)
 
any other forms are returned unmodified.
 
str may be a comma- or semicolon-separated list
 
This code copied from Module:Citation/CS1.  The only modification is to require Module:Citation/CS1/Utilities
so that it has access to the functions is_set() and has_accept_as_written()
 
]]
 
local function hyphen_to_dash( str )
local utilities = require ('Module:Citation/CS1/Utilities'); -- only modification so that this function has access to is_set() and has_accept_as_written()
 
if not utilities.is_set (str) then
return str;
end
 
local accept; -- Boolean
 
str = str:gsub ('&[nm]dash;', {['&ndash;'] = '–', ['&mdash;'] = '—'}); -- replace &mdash; and &ndash; entities with their characters; semicolon mucks up the text.split
str = str:gsub ('&#45;', '-'); -- replace HTML numeric entity with hyphen character
 
str = str:gsub ('&nbsp;', ' '); -- replace &nbsp; entity with generic keyboard space character
local out = {};
local list = mw.text.split (str, '%s*[,;]%s*'); -- split str at comma or semicolon separators if there are any
 
for _, item in ipairs (list) do -- for each item in the list
item, accept = utilities.has_accept_as_written (item); -- remove accept-this-as-written markup when it wraps all of item
if not accept and mw.ustring.match (item, '^%w*[%.%-]?%w+%s*[%-–—]%s*%w*[%.%-]?%w+$') then -- if a hyphenated range or has endash or emdash separators
if item:match ('^%a+[%.%-]?%d+%s*%-%s*%a+[%.%-]?%d+$') or -- letterdigit hyphen letterdigit (optional separator between letter and digit)
item:match ('^%d+[%.%-]?%a+%s*%-%s*%d+[%.%-]?%a+$') or -- digitletter hyphen digitletter (optional separator between digit and letter)
item:match ('^%d+[%.%-]%d+%s*%-%s*%d+[%.%-]%d+$') or -- digit separator digit hyphen digit separator digit
item:match ('^%d+%s*%-%s*%d+$') or -- digit hyphen digit
item:match ('^%a+%s*%-%s*%a+$') then -- letter hyphen letter
item = item:gsub ('(%w*[%.%-]?%w+)%s*%-%s*(%w*[%.%-]?%w+)', '%1–%2'); -- replace hyphen, remove extraneous space characters
else
item = mw.ustring.gsub (item, '%s*[–—]%s*', '–'); -- for endash or emdash separated ranges, replace em with en, remove extraneous whitespace
end
end
table.insert (out, item); -- add the (possibly modified) item to the output table
end
 
local temp_str = ''; -- concatenate the output table into a comma separated string
temp_str, accept = utilities.has_accept_as_written (table.concat (out, ', ')); -- remove accept-this-as-written markup when it wraps all of concatenated out
if accept then
temp_str = utilities.has_accept_as_written (str); -- when global markup removed, return original str; do it this way to suppress boolean second return value
return temp_str;
else
return temp_str; -- else, return assembled temp_str
end
end
end


Regel 320: Regel 134:
args.page = pframe.args.p or pframe.args.page or '';
args.page = pframe.args.p or pframe.args.page or '';
args.pages = pframe.args.pp or pframe.args.pages or '';
args.pages = pframe.args.pp or pframe.args.pages or '';
args.pages = ('' ~= args.pages) and hyphen_to_dash (args.pages) or '';
args.location = pframe.args.loc or '';
args.location = pframe.args.loc or '';
args.ref = pframe.args.ref or pframe.args.Ref or '';
args.ref = pframe.args.ref or pframe.args.Ref or '';
args.ignore = ('yes' == pframe.args['ignore-false-positive']) or ('yes' == pframe.args['ignore-err']);
 
for i, v in ipairs ({'P1', 'P2', 'P3', 'P4', 'P5'}) do -- loop through the five positional parameters and trim if set else empty string
for i, v in ipairs ({'P1', 'P2', 'P3', 'P4', 'P5'}) do -- loop through the five positional parameters and trim if set else empty string
args[v] = (pframe.args[i] and mw.text.trim (pframe.args[i])) or '';
args[v] = (pframe.args[i] and mw.text.trim (pframe.args[i])) or '';
end
end


if args.P5 and not is_year (args.P5, args) then
local i = 6; -- initialize the indexer to the sixth positional parameter
while pframe.args[i] do -- in case there are too many authors loop through the authors looking for a year
local v = mw.text.trim (pframe.args[i]); -- trim
if is_year (v, args) then -- if a year
args.P5 = v; -- overwrite whatever was in args.P5 with year
break; -- and abandon the search
end
i = i + 1; -- bump the indexer
end
end
return args;
return args;
end
end
Regel 377: Regel 178:


local function strip_url (pages)
local function strip_url (pages)
local escaped_uri;
local escaped_uri;
if not pages or ('' == pages) then
if not pages or ('' == pages) then
return pages;
return pages;
Regel 402: Regel 203:


local result = core (args); -- go make a CITEREF anchor
local result = core (args); -- go make a CITEREF anchor
-- put it all together and then strip redundant spaces
-- put it all together and then strip redundant spaces
local name = table.concat ({'FOOTNOTE', args.P1, args.P2, args.P3, args.P4, args.P5, strip_url (args.page), strip_url (args.pages), strip_url (args.location)}):gsub ('%s+', ' ');
local name = table.concat ({'FOOTNOTE', args.P1, args.P2, args.P3, args.P4, args.P5, strip_url (args.page), strip_url (args.pages), strip_url (args.location)}):gsub ('%s+', ' ');
Regel 476: Regel 278:
args.page = pframe.args[table.concat ({n, 'p'})] or ''; -- insource locations for this source
args.page = pframe.args[table.concat ({n, 'p'})] or ''; -- insource locations for this source
args.pages = pframe.args[table.concat ({n, 'pp'})] or '';
args.pages = pframe.args[table.concat ({n, 'pp'})] or '';
args.pages = ('' ~= args.pages) and hyphen_to_dash (args.pages) or '';
args.location = pframe.args[table.concat ({n, 'loc'})] or '';
args.location = pframe.args[table.concat ({n, 'loc'})] or '';
args.ignore = ('yes' == pframe.args[table.concat ({n, 'ignore-false-positive'})]) or ('yes' == pframe.args[table.concat ({n, 'ignore-err'})]);


table.insert (out, core (args)); -- save the rendering of this source
table.insert (out, core (args)); -- save the rendering of this source
Regel 513: Regel 313:




--[[--------------------------< S F N R E F >------------------------------------------------------------------
--[[--------------------------< E X P O R T  T A B L E >------------------------------------------------------
 
implements {{sfnref}}
 
]]
 
local function sfnref (frame)
local args = getArgs (frame);
local out = {};
for i=1, 5 do -- get the first five args if there are five args
if args[i] then
out[i] = args[i];
else
break; -- less than 5 args break out
end
end
if 5 == #out then -- when we have seen five args there may bemore
local i = 6; -- initialize the indexer to the sixth positional parameter
while args[i] do -- in case there are too many authors loop through the authors looking for a year
if is_year (args[i], args) then -- if a year
out[5] = args[i]; -- overwrite whatever was in args[5] with year
break; -- and abandon the search
end
i = i + 1; -- bump the indexer
end
end
return mw.uri.anchorEncode ('CITEREF' .. table.concat (out));
end
 
 
--[[--------------------------< E X P O R T E D  F U N C T I O N S >------------------------------------------
]]
]]


Regel 553: Regel 320:
sfn = sfn,
sfn = sfn,
sfnm = sfnm,
sfnm = sfnm,
sfnref = sfnref,
};
};

Huidige versie van 14 jan 2024 om 13:20


require('Module:No globals');

--[[--------------------------< A R G S _ D E F A U L T >------------------------------------------------------

a table to specify initial values.

]]

local args_default = {
	bracket_left = '',
	bracket_right = '',
	bracket_year_left = '',
	bracket_year_right = '',
	postscript = '',
	page = '',
	pages = '',
	location = '',
	page_sep = ", p.&nbsp;",
	pages_sep = ", pp.&nbsp;",
	ref = '',
	};


--[[--------------------------< I S _ Y E A R >----------------------------------------------------------------

evaluates param to see if it is one of these forms with or without lowercase letter disambiguator:
	YYYY
	n.d.
	nd	
	c. YYYY
	YYYY–YYYY	(separator is endash)

return true when param has a recognized form; false else

]]

local function is_year (param)
	return param:match ('^%d%d%d%d?%l?$') or param:match ('^n%.d%.%l?$') or param:match ('^nd%l?$') or param:match ('^c%. %d%d%d%d?%l?$') or param:match ('^%d%d%d%d–%d%d%d%d%l?$');
end


--[[--------------------------< C O R E >----------------------------------------------------------------------

returns an anchor link (CITEREF) formed from one to four author names, year, and insource location (|p=, |pp=, loc=)

]]

local function core( args )
	local result;

	if args.P5 ~= '' then
		if is_year (args.P5) then
			result = table.concat ({args.P1, ' et al. ', args.bracket_year_left, args.P5, args.bracket_year_right});
		else
			args.P5 = '';														-- when P5 not a year don't include in anchor
			result = table.concat ({args.P1, ' et al.'});						-- and don't render it
		end

	elseif args.P4 ~= '' then
		if is_year (args.P4) then
			result = table.concat ({args.P1, ', ', args.P2, ' &amp; ', args.P3, ' ', args.bracket_year_left, args.P4, args.bracket_year_right});	-- three names and a year
		else
			result = table.concat ({args.P1, ' et al.'});						-- four names
		end

	elseif args.P3 ~= '' then
		if is_year (args.P3) then
			result = table.concat ({args.P1, ' &amp; ', args.P2, ' ', args.bracket_year_left, args.P3, args.bracket_year_right});	-- two names and a year
		else
			result = table.concat ({args.P1, ', ', args.P2, ' ', ' &amp; ', args.P3});	-- three names
		end
			
	elseif args.P2 ~= '' then
		if is_year (args.P2) then
			result = table.concat ({args.P1, ' ', args.bracket_year_left, args.P2, args.bracket_year_right});	-- one name and year
		else
			result = table.concat ({args.P1, ' &amp; ', args.P2});				-- two names
		end
		
	else
		result = args.P1;														-- one name
	end
																				-- when author-date result ends with a dot (typically when the last positional parameter holds 'n.d.')
																				-- and when no in-source location (no |p=, |pp=, or |loc=)
																				-- and when the first or only character in args.postscript is a dot
																				-- remove the author-date result trailing dot
																				-- the author-date result trailing dot will be replaced later with the content of args.postscript (usually a dot)
	if ('.' == result:sub(-1)) and ('.' == args.postscript:sub(1)) and ('' == args.page) and ('' == args.pages) and ('' == args.location) then
		result = result:gsub ('%.$', '');
	end
	
	if args.ref ~= 'none' then
		if args.ref ~= '' then
			result = table.concat ({'[[#', mw.uri.anchorEncode (args.ref), '|', result, ']]'});
		else
			result = table.concat ({'[[#CITEREF', mw.uri.anchorEncode (table.concat ({args.P1, args.P2, args.P3, args.P4, args.P5})), '|', result, ']]'});
		end
	end

	if args.page ~= '' then
		result = table.concat ({result, args.page_sep, args.page});
	elseif args.pages ~= ''then
		result = table.concat ({result, args.pages_sep, args.pages});
	end      

	if args.location ~= '' then
		result = table.concat ({result, ', ', args.location});
	end

	result = table.concat ({args.bracket_left, result, args.bracket_right, args.postscript}):gsub ('%s+', ' ');		-- strip redundant spaces
	return result;
end


--[[--------------------------< A R G S  _ F E T C H >---------------------------------------------------------

Because all of the templates share a common set of parameters, a single common function to fetch those parameters
from frame and parent frame.

]]

local function args_fetch (frame, ps)
	local args = args_default;													-- create a copy of the default table
	local pframe = frame:getParent();											-- point to the template's parameter table

	for k, v in pairs (frame.args) do											-- override defaults with values provided in the #invoke: if any
		args[k] = v;	   
	end
	
	args.postscript = pframe.args.postscript or pframe.args.ps or ps;
	if 'none' == args.postscript then
		args.postscript = '';
	end
	args.page = pframe.args.p or pframe.args.page or '';
	args.pages = pframe.args.pp or pframe.args.pages or '';
	args.location = pframe.args.loc or '';
	args.ref = pframe.args.ref or pframe.args.Ref or '';
	
	for i, v in ipairs ({'P1', 'P2', 'P3', 'P4', 'P5'}) do						-- loop through the five positional parameters and trim if set else empty string
		args[v] = (pframe.args[i] and mw.text.trim (pframe.args[i])) or '';
	end

	return args;
end


--[[--------------------------< H A R V A R D _ C I T A T I O N >----------------------------------------------

common entry point for:
	{{harvard citation}} aka {{harv}}
	{{Harvard citation no brackets}} aka {{harvnb}}
	{{harvcol}}
	{{harvcolnb}}
	{{harvcoltxt}}
	{{Harvard citation text}} aka {{harvtxt}}
	{{Harvp}}

Distinguishing features (brackets and page separators) are specified in this module's {{#invoke}} in the respective templates.

]]

local function harvard_citation (frame)
	local args = args_fetch (frame, '');										-- get the template and invoke parameters; default postscript is empty string

	return core (args);
end


--[[--------------------------< S T R I P _ U R L >------------------------------------------------------------

used by sfn() and sfnm().  This function fixes an issue with reference tooltip gadget where the tooltip is not displayed
when an insource locator (|p=, |pp=, |loc=) has an external wikilink that contains a # character

strip uri-reserved characters from urls in |p=, |pp-, and |loc= parameters  The researved characters are:
	!#$&'()*+,/:;=?@[]
	
]]

local function strip_url (pages)
local escaped_uri;
	if not pages or ('' == pages) then
		return pages;
	end
	
	for uri in pages:gmatch ('%[(%a[%w%+%.%-]*://%S+)') do						-- for each external link get the uri
		escaped_uri = uri:gsub ("([%(%)%.%%%+%-%*%?%[%^%$%]])", "%%%1" );		-- save a copy with lua pattern characters escaped
		uri = uri:gsub ("[!#%$&'%(%)%*%+,/:;=%?@%[%]%.%%]", '');				-- remove reserved characters and '%' because '%20' (space character) is a lua 'invalid capture index'
		pages = pages:gsub (escaped_uri, uri, 1);								-- replace original uri with the stripped version
	end
	
	return pages;
end


--[[--------------------------< S F N >------------------------------------------------------------------------

entry point for {{sfn}} and {{sfnp}}

]]

local function sfn (frame)
	local args = args_fetch (frame, '.');										-- get the template and invoke parameters; default postscript is a dot

	local result = core (args);													-- go make a CITEREF anchor
	
																				-- put it all together and then strip redundant spaces
	local name = table.concat ({'FOOTNOTE', args.P1, args.P2, args.P3, args.P4, args.P5, strip_url (args.page), strip_url (args.pages), strip_url (args.location)}):gsub ('%s+', ' ');

	return frame:extensionTag ({name='ref', args={name=name}, content=result});	

	
end


--[[--------------------------< S F N M >----------------------------------------------------------------------

common entry point for {{sfnm}} and {{sfnmp}}

Distinguishing features (brackets) are specified in this module's {{#invoke}} in the respective templates.

]]

local function sfnm (frame)
	local args = args_default;													-- create a copy of the default table
	local pframe = frame:getParent();											-- point to the template's parameter table
	
	local n = 1;																-- index of source; this is the 'n' in na1, ny, etc
	local first_pnum = 1;														-- first of a pair of positional parameters
	local second_pnum = 2;														-- second of a pair of positional parameters

	local last_ps = 0;															-- index of the last source with |nps= set
	local last_index = 0;														-- index of the last source; these used to determine which of |ps= or |nps= will terminate the whole rendering

	local out = {};																-- table to hold rendered sources
	local footnote = {'FOOTNOTE'};												-- all author, date, insource location stuff becomes part of the reference's footnote id; added as we go

	for k, v in pairs (frame.args) do											-- override defaults with values provided in the #invoke: if any
		args[k] = v;	   
	end
	
	while true do
		if not pframe.args[table.concat ({n, 'a1'})] and not pframe.args[first_pnum] then
			break;																-- no na1 or matching positional parameter so done
		end
		
		if pframe.args[table.concat ({n, 'a1'})] then							-- does this source use named parameters?
			for _, v in ipairs ({'P1', 'P2', 'P3', 'P4', 'P5'}) do				-- initialize for this source
				args[v] = '';
			end

			for i, v in ipairs ({'P1', 'P2', 'P3', 'P4', 'P5'}) do				-- extract author and year parameters for this source
				args[v] = pframe.args[table.concat ({n, 'a', i})] or '';		-- attempt to assign author name
				if '' == args[v] then											-- when there wasn't an author name
					args[v] = pframe.args[table.concat ({n, 'y'})] or '';		-- attempt to assign year
					break;														-- done with author/date for this source
				end
			end

		else																	-- this source uses positional parameters
			args.P1 = mw.text.trim (pframe.args[first_pnum]);					-- yes, only one author supported
			args.P2 = (pframe.args[second_pnum] and mw.text.trim (pframe.args[second_pnum])) or '';	-- when positional author, year must also be positional

			for _, v in ipairs ({'P3', 'P4', 'P5'}) do							-- blank the rest of these for this source
				args[v] = '';
			end

			first_pnum = first_pnum + 2;										-- source must use positional author and positional year
			second_pnum = first_pnum + 1;										-- bump these for possible next positional source
		end
		
		args.postscript = pframe.args[table.concat ({n, 'ps'})] or '';
		if 'none' == args.postscript then										-- this for compatibility with other footnote templates; does nothing
			args.postscript = '';
		end

		args.ref = pframe.args[table.concat ({n, 'ref'})] or '';				-- alternate reference for this source

		args.page = pframe.args[table.concat ({n, 'p'})] or '';					-- insource locations for this source
		args.pages = pframe.args[table.concat ({n, 'pp'})] or '';
		args.location = pframe.args[table.concat ({n, 'loc'})] or '';

		table.insert (out, core (args));										-- save the rendering of this source
		
		for k, v in ipairs ({'P1', 'P2', 'P3', 'P4', 'P5'}) do					-- create the FOOTNOTE id
			if '' ~= args[v] then
				table.insert (footnote, args[v]);
			end
		end
		for k, v in ipairs ({'page', 'pages', 'location'}) do					-- these done separately so that we can strip uri-reserved characters from extlinked page numbers 
			if '' ~= args[v] then
				table.insert (footnote, strip_url (args[v]))
			end
		end
		
		last_index = n;															-- flags used to select terminal postscript from nps or from end_ps
		if '' ~= args.postscript then							
			last_ps = n;
		end
		
		n = n+1;																-- bump for the next one
	end
	
	local name = table.concat (footnote):gsub ('%s+', ' ');						-- put the footnote together and strip redundant space
	
	args.end_ps = pframe.args.postscript or pframe.args.ps or '.';				-- this is the postscript for the whole not for the individual sources
	if 'none' == args.end_ps then												-- not an original sfnm parameter value; added for compatibility with other footnote templates
		args.end_ps = '';
	end

	local result = table.concat ({table.concat (out, '; '), (last_index == last_ps) and '' or  args.end_ps});
	return frame:extensionTag ({name='ref', args={name=name}, content=result});
end


--[[--------------------------< E X P O R T   T A B L E >------------------------------------------------------
]]

return {
	harvard_citation = harvard_citation,
	sfn = sfn,
	sfnm = sfnm,
	};