Module:Footnotes
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. ", pages_sep = ", pp. ", 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?$'); end
--[[--------------------------< C O R E >----------------------------------------------------------------------
returns an anchor link (CITEREF) formed from one to four author names, year, and insource location (|p=, |pp=, loc=)
]]
local function core( args ) local result;
if args.P5 ~= then if is_year (args.P5) then result = table.concat ({args.P1, ' et al. ', args.bracket_year_left, args.P5, args.bracket_year_right}); else args.P5 = ; -- when P5 not a year don't include in anchor result = table.concat ({args.P1, ' et al.'}); -- and don't render it end
elseif args.P4 ~= then if is_year (args.P4) then result = table.concat ({args.P1, ', ', args.P2, ' & ', args.P3, ' ', args.bracket_year_left, args.P4, args.bracket_year_right}); -- three names and a year else result = table.concat ({args.P1, ' et al.'}); -- four names end
elseif args.P3 ~= then if is_year (args.P3) then result = table.concat ({args.P1, ' & ', args.P2, ' ', args.bracket_year_left, args.P3, args.bracket_year_right}); -- two names and a year else result = table.concat ({args.P1, ', ', args.P2, ' ', ' & ', args.P3}); -- three names end
elseif args.P2 ~= then if is_year (args.P2) then result = table.concat ({args.P1, ' ', args.bracket_year_left, args.P2, args.bracket_year_right}); -- one name and year else result = table.concat ({args.P1, ' & ', args.P2}); -- two names end
else result = args.P1; -- one name end -- when author-date result ends with a dot (typically when the last positional parameter holds 'n.d.') -- and when no in-source location (no |p=, |pp=, or |loc=) -- and when the first or only character in args.postscript is a dot -- remove the author-date result trailing dot -- the author-date result trailing dot will be replaced later with the content of args.postscript (usually a dot) if ('.' == result:sub(-1)) and ('.' == args.postscript:sub(1)) and ( == args.page) and ( == args.pages) and ( == args.location) then result = result:gsub ('%.$', ); end
if args.ref ~= 'none' then if args.ref ~= then result = table.concat ({'', 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: ([[#CITEREF|]]) aka ([[#CITEREF|]]) [[#CITEREF|]] aka [[#CITEREF|]] ([[#CITEREF|]]) [[#CITEREF|]] [[#CITEREF|]] [[#CITEREF|]] aka [[#CITEREF|]] ]]
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 >------------------------------------------------------------------------
]]
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 [1] and [1]
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, };