Module:Iteration

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Revision as of 21:41, 6 August 2020 by Till Kraemer (talk | contribs) (Created page with "-- This module contains the functions for different templates, solving their iteration problems. local p = {} -- for Template:Ifim function p.ifim1 (frame) local args =...")
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Documentation for this module may be created at Module:Iteration/doc

--  This module contains the functions for different templates, solving their iteration problems.


local p = {}

-- for Template:Ifim 
function p.ifim1 (frame) 
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local p1 = args.p1 or "";
	local p2 = args.p2 or "";
	local p3 = args.p3 or "";
	local p4 = args.p4 or "";
	local p5 = args.p5 or "";
	local fn = args.fn or "";
	for _, v in ipairs(args) do
		table.insert(otab, frame:expandTemplate{ title = "Ifim1", args = { v, p1, p2, p3, p4, p5, n= fn } });
	end
	return  table.concat (otab)
end -- function ifim

-- for Template:Ifimc 
function p.ifim2 (frame) 
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local p1 = args.p1 or "";
	local p2 = args.p2 or "";
	local p3 = args.p3 or "";
	local p4 = args.p4 or "";
	for _, v in ipairs(args) do
		table.insert(otab, frame:expandTemplate{ title = "Ifim2", args = { v, p1, p2, p3, p4, v } });
	end
	return  table.concat (otab)
end -- function ifim2

-- for Template:Ifimt (param pairs)
function p.ifimt (frame) 
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local v1 = "";
	local p1 = args.p1 or "";
	local p2 = args.p2 or "";
	local p3 = args.p3 or "";
	local p4 = args.p4 or "";
	for _, v in ipairs(args) do
		if v1 == "" then   
			v1 = mw.text.trim( v );
		else
			table.insert(otab, frame:expandTemplate{ title = "Ifim2", args = { v1, p1, p2, p3, p4, v } });
			v1 = "";
		end
	end
	if v1 ~= "" then
		table.insert(otab, frame:expandTemplate{ title = "Ifim2", args = { v1, p1, p2, p3, p4, "" } });	-- last elem		
	end
	return  table.concat (otab)
end -- function ifimt

-------------------------------------------------------
-- helper function for:  ownbased, and filelist
local function samefile ( fnam, numb, frst ) 
	local name  = mw.text.trim( fnam ) or ""
	if mw.ustring.sub(name, 1, 1) == "."
		then
			local nsnr = tonumber( mw.title.getCurrentTitle().namespace );
			local page = mw.title.getCurrentTitle().text;
			local part = "Example"   --  default name
			if nsnr == 6 or nsnr == 7
			then local parts = mw.text.split(page , '.', true)
				 local upTo = #parts - 1    -- copied from Module:File
				 part = table.concat(parts, '.', 1, math.max(upTo, 1))
			end
			if     name == "."  then name = part .. ".png";
			elseif name == ".p" then name = part .. ".png";
			elseif name == ".j" then name = part .. ".jpg";
			elseif name == ".g" then name = part .. ".gif";
			elseif name == ".s" then name = part .. ".svg";
			else					 name = part ..  name;
			end
	elseif  name ==  ""
		then
			local nsnr = tonumber( mw.title.getCurrentTitle().namespace );
			local page = mw.title.getCurrentTitle().text;
			if tonumber( numb ) == 1
					then name = "Example.svg";
					if nsnr == 6 or nsnr == 7
						then name = page;
					end
			else name = mw.text.trim( frst );
				if name == ""
				or mw.ustring.sub(name, 1, 1) == "."
					then name = "Example.svg";
					if nsnr == 6 or nsnr == 7
						then name = page;
					end
				end
			end
	end
	return name
end -- function samefile
-------------------------------------------------------


-- for Template:Own based  (horizontal - but vertical when "b1=")
function p.ownbased (frame)
--	local lpar = parm       --  local parms
--	local gpar = frame.args -- global parms
	local ppar = mw.getCurrentFrame(): getParent().args;
	local btab = {};
	local dtab = {};
	local htab = {};
	local itab = {};
	local ltab = {};
	local ntab = {};
	local otab = {};
	local qtab = {};
	local rtab = {};
	local Ctab = {};

	local by0  = ppar.b or ppar.by or ppar.u or ppar.user or "";
	local dis  = ppar.d or ppar.dis or ppar.display or ""; 
	local hil  = ppar.h or ppar.hilite or "";
	local lng  = ppar.i or ppar.lang or "";
	local wik  = ppar.l or ppar.wiki or "";
	local nam  = ppar.n or ppar.name or "";
	local opt  = ppar.o or ppar.opt or ppar.option  or "";
	local pr4  = ppar.par4 or ppar.qpar or "";
	local pr5  = ppar.par5 or ppar.rpar or "";
	local max  = 0;
	local cor  = 0;
	local x    = 0;  -- running index, can be ~= i
	local fst  = 0;  -- first occurrence
	local plus = "";

	for i, v in ipairs(ppar) do
		if v == "+" then
			plus = "+";
		elseif  v == "-" then
			if plus == "" then plus = "-" end
		else
			x = x + 1;
			if fst == 0 then fst = x end;
			btab [x] = ppar ["b" .. tostring( x )] or ppar ["by" .. tostring( x )] or ppar ["u" .. tostring( x )] or "-";
			dtab [x] = ppar ["d" .. tostring( x )] or "-";
			htab [x] = ppar ["h" .. tostring( x )] or "-";
			itab [x] = ppar ["i" .. tostring( x )] or "-";
			ltab [x] = ppar ["l" .. tostring( x )] or "-";
			ntab [x] = ppar ["n" .. tostring( x )] or "-";
			otab [x] = ppar ["o" .. tostring( x )] or "-";
			qtab [x] = ppar ["q" .. tostring( x )] or "-";
			rtab [x] = ppar ["r" .. tostring( x )] or "-";
		end
		max   =  x;
		if v == "x" 
		or v == "X" 
		or v == "×" then
			cor = cor + 1;
		end
	end -- for

	x   = 0;
	if fst > 0 then
		local mnm = mw.text.trim ( ppar [fst] );
	end
	for _, v in ipairs(ppar) do
		if v ~= "+" and v ~= "-" then
			x  =  x + 1;
			local by = by0;  if btab[x] ~= "-" then  by = btab[x] end
			local ds = dis;  if dtab[x] ~= "-" then  ds = dtab[x] end
			local hl = hil;  if htab[x] ~= "-" then  hl = htab[x] end
			local il = wik;  if ltab[x] ~= "-" then  il = ltab[x] end
			local lg = lng;  if itab[x] ~= "-" then  lg = itab[x] end
			local nm = "";   if ntab[x] ~= "-" then  nm = ntab[x] end
			local op = opt;  if otab[x] ~= "-" then  op = otab[x] end
			local p4 = pr4;  if qtab[x] ~= "-" then  p4 = qtab[x] end
			local p5 = pr5;  if rtab[x] ~= "-" then  p5 = rtab[x] end
			local px = "";
			local vv = mw.text.trim ( v );

			vv = samefile ( vv, x, mnm );
			if x == 1 then mnm = vv; end

			if vv ~= "" and vv ~= "×" then
				if ppar.b1 == nil then  -- parameter missing
					px = "";
					if x == 1 then
						px = " "
					elseif x == max then
						table.insert(Ctab, frame:expandTemplate{ title = "Conj-and" });
					else
						table.insert(Ctab, frame:expandTemplate{ title = "Comma" });
					end
				else					--	ppar.b1 is defined (with value, or empty)
					px = "<br><span style=color:#69F>✦ </span>";     -- «list» item
				end
--				ds = mw.text.trim(ds);
				if  mw.ustring.sub(ds, -2) == "px" then
					ds = mw.ustring.sub(ds, 1, mw.ustring.len(ds) -2);
				end
				if nm == "" and x == 1 then nm = nam end
				if hl ~= "" then
					if nm == "" then nm = vv end
					nm = "<" .. hl .. ">" .. nm .. "</" .. hl .. ">"
				end
--				if il ~= ""  then ds = "" end  -- ? (discrepancy)
				if vv == "x" then ds = "" end  -- this should be the last "file"
				table.insert(Ctab, frame:expandTemplate{ title = "F", args = {vv, nm, ds, op, p4, p5, plus, l= il, lang= lg, p= px, by= by} });
			end
		end
	end -- for
	if max - cor > 3  then
		table.insert(Ctab, frame:expandTemplate{ title = "Igen/cat", args = {"Own-based with more than 3 files|" .. max} });
	end
 	return  table.concat (Ctab);
end  --  function ownbased


-- horizontal file list for:  Template:SVG lang,  Template:Lang gallery  and others
function p.svglang (frame) 
	local dirp = frame.args-- global parms
	local titl = dirp [1] or "Source thumb"  -- SVG lang; "Lang gallery thumb";
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local file = args.file or "";
	for _, v in ipairs(args) do
		table.insert(otab, frame:expandTemplate{ title = titl, args = { file, mw.text.trim(v) } });
	end
	return  table.concat (otab)
end -- function svglang


-- horizontal file list for:  Template:Filelist;  Template:File 
--   vertical file list for:  Template:Other versions;  Template:Derived from,  Template:Derivative versions 
function p.filelist (frame) 
--  local locp = frame     -- 1 local parm
	local dirp = frame.args-- global parms
	local args = mw.getCurrentFrame(): getParent().args;
	local ctab = {};
	local ntab = {};
	local dtab = {};
	local otab = {};
	local qtab = {};
	local rtab = {};
	local vtab = {};
	local ktab = {};
	local itab = {};
	local xtab = {};
	local btab = {};
	local mnum = 0; 
	local dir  = dirp[1] or "none"
	local nam  = args.n             or args.name    or ""; 
	local dis  = args.d or args.dis or args.display or ""; 
	local opt  = args.o or args.opt or args.option  or "";
	local pr4  = args.par4 or args.qpar or "";
	local pr5  = args.par5 or args.rpar or "";
	local pr6  = args.par6 or args.vpar or "";
	local by0  = args.user or args.by or "";
	local wik  = args.w or args.k or args.wiki or args.sisterproject or "";
	local int  = args.i or args.int or args.ind or args.inter or "";
	local pfx  = args.p or args.x or args.pfx or args.prefix  or ""; -- 'list' item {{Comma}}
	if  mw.ustring.sub(dis, -2) == 'px' then 
		dis = mw.ustring.sub(dis, 1, mw.ustring.len(dis) -2)
	end
	if dir == "vert" and pfx == "" then
		pfx  = "<br><span style=color:#69F>✦ </span>";     -- 'list' item
	end

	for i, v in ipairs(args) do
		ntab [i] = args ["n" .. tostring( i )] or args ["l" .. tostring( i )] or "-";
		dtab [i] = args ["d" .. tostring( i )] or "-";
		otab [i] = args ["o" .. tostring( i )] or "-";
		qtab [i] = args ["q" .. tostring( i )] or "-";
		rtab [i] = args ["r" .. tostring( i )] or "-";
		vtab [i] = args ["v" .. tostring( i )] or "-";
		ktab [i] = args ["k" .. tostring( i )] or "-";
		itab [i] = args ["i" .. tostring( i )] or "-";
		xtab [i] = args ["x" .. tostring( i )] or "-";
		btab [i] = args ["b" .. tostring( i )] or args ["by" .. tostring( i )] or "-";
		mnum  = i;
	end

	for i, v in ipairs(args) do
		local nm = nam;  if ntab[i] ~= "-" then  nm = ntab[i] end
		local ds = dis;  if dtab[i] ~= "-" then  ds = dtab[i] end
		local op = opt;  if otab[i] ~= "-" then  op = otab[i] end
		local p4 = pr4;  if qtab[i] ~= "-" then  p4 = qtab[i] end
		local p5 = pr5;  if rtab[i] ~= "-" then  p5 = rtab[i] end
		local p6 = pr6;  if vtab[i] ~= "-" then  p6 = vtab[i] end
		local pk = wik;  if ktab[i] ~= "-" then  pk = ktab[i] end
		local pi = int;  if itab[i] ~= "-" then  pi = itab[i] end
		local px = pfx;  if xtab[i] ~= "-" then  px = xtab[i] end
		local by = by0;  if btab[i] ~= "-" then  by = btab[i] end
		local vv = v;

		vv = samefile ( vv, i,  args [1] )
			
		if vv ~= ""  then 
			if dir == "hori" then
				px = "";
				if i == 1 then 
					px = "&#32;"
				elseif i == mnum then
					table.insert(ctab, frame:expandTemplate{ title = "Conj-and" });
				else
					table.insert(ctab, frame:expandTemplate{ title = "Comma" });
				end
			else				--	elseif dir == "vert" then
				if i == 1 then 
					px = "&#32;"
				end
			end
			table.insert(ctab, frame:expandTemplate{ title = "F", args = {vv, nm, ds, op, p4, p5, p6, l= pk, lang= pi, p= px, by= by} });
		end
	end
 	return  table.concat (ctab)
end -- function filelist


-- for Template:Attribs  (param pairs; but also for single oarams)
function p.attribs (frame) 
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local ftab = {};
	local ptab = {};
	local rtab = {}
	local fnum = 0;
	local rnum = 0;
	local hnum = 0;
	local tp   = args.type or "SVG";  -- needs check
	local un   = args.by or args.U or args.u or "";
	local tt   = args.t or args.to or "";
	local f    = args.f or args.from or tt;
	local p    = args.p or args.part or "";
	local vx   = "";
	local ux   = "";
	local ft   = "";

	for i, v in ipairs(args) do
		fnum = fnum + 1;   -- input parm number
		if fnum % 2 ==  0 then  -- even: should be a username
			local enam = mw.text.trim ( v );
			local snam = mw.ustring.lower ( mw.ustring.sub ( enam, -4 ) );
			if snam == ".svg"
			or snam == ".png"
			or snam == ".jpg"			-- a rough check: is_extension ?
			or snam == ".gif"
			or snam == ".pdf"
			or snam == ".tif" then		-- no - it's the next filename
				table.insert(rtab, "" ); -- empty username inbetween
				rnum = rnum + 1;
				fnum = fnum + 1;		-- make it odd
			end
		end
		if fnum % 2 ==  1 then  --  odd (now): is a filename
			hnum = fnum + 1 
			hnum = hnum / 2 
			ftab [hnum] = args ["f" .. tostring( hnum )] or ".";
			ptab [hnum] = args ["p" .. tostring( hnum )] or ".";
		end
--                                   table.maxnum (args) does not work
--                                   therefore the "rtab" workaround
		table.insert(rtab, args[i]); -- = enam
		rnum = rnum + 1
	end
--	                                 plus one item when odd number
	if  rnum % 2 ==  1 then
 		table.insert( rtab, "" ); -- empty user name, to get a pair
	end
--	
	for i, v in ipairs(rtab) do
		if vx == "" then     -- the 2nd 'v' can be empty
			vx = mw.text.trim( v );
		else
			ux = mw.text.trim( v );
			if ux == "" then ux = un end; -- does not work otherwise (?)
			hnum = i + 0 
			hnum = hnum / 2 
			if ftab[hnum] == "." then 
				ft = f;
			else
				ft = ftab[hnum]  
			end
			if ptab[hnum] == "." then 
				pt = p;
			else
				pt = ptab[hnum]  
			end
			table.insert(otab, frame:expandTemplate{ title = "Attrib", args = {vx, ux, "-", tp, "", ux, tt, ft, pt } });
			vx = "";
		end
	end
	return  table.concat (otab)
end -- function attribs
--

-- for Template:userlist  (horizontal - but vertical when dir=I/O/U/V)
function p.userlist (frame)
--	local lpar = parm       --  local parms
	local gpar = frame.args -- global parms (par/P,dir/V)
	local ppar = mw.getCurrentFrame(): getParent().args;
	local ctab = {};
	local htab = {};
	local ltab = {};
	local ntab = {};
	local otab = {};
	local ptab = {};
	local ttab = {};
--@	local rtab = {};
--@	local qtab = {};
	local wtab = {};
	local Xtab = {};

	local cas  = ppar.c or ppar.case or "";
	local hil  = ppar.h or ppar.hilite or "";
	local lnk  = ppar.l or ppar.link or "";
	local nam  = ppar.n or ppar.name or "";
	local opt  = ppar.o or ppar.opt  or ppar.option or "";
	local pag  = ppar.p or ppar.page or "";
--@	local pr4  = ppar.q or ppar.qpar or ppar.par4 or "";
--@	local pr5  = ppar.r or ppar.rpar or ppar.par5 or "";
	local trl  = ppar.t or ppar.i18n or ppar.translate or "";
	local wik  = ppar.w or ppar.wiki or ppar.lang or "";

	local max  = 0;
	local cor  = 0;
	local x    = 0;  -- running index, can be ~= i
	local y    = 0;  -- running index, can be ~= i
	local odd  = 0;
	local out  = 0;
	local plus = ""; -- opt

	local prim = ""
	local prfx = ":"
	local pend = ""
	if gpar.dir == "O" then		-- ordered list
		prim = "<ol>";
		prfx = "<li>";
		pend = "</ol>";
	end	
	if gpar.dir == "U" then		-- unordered list
		prim = "<ul>";
		prfx = "<li>";
		pend = "</ul>";
	end
	if gpar.dir == "V" then		-- vertical list
		prim = " ";
		prfx = "<br><span style=color:#69F>✦ </span>";
	end	

	for _, v in ipairs(ppar) do
		v = mw.text.trim ( v );
		if v == "+" then
			plus = "+";
		elseif  v == "-" then
			if plus == "" then plus = "-" end
		else
			y = y + 1;
			if gpar.par == "P"	-- pairs of (user, name)
			and y % 2 == 0 then	-- 1=user, 0=name
				x = x;		
			else
				x = x + 1;
				ctab [x] = ppar ["c" .. tostring( x )] or "-";
				htab [x] = ppar ["h" .. tostring( x )] or "-";
				ltab [x] = ppar ["l" .. tostring( x )] or "-";
				ntab [x] = ppar ["n" .. tostring( x )] or "-";
				otab [x] = ppar ["o" .. tostring( x )] or "/";
				ptab [x] = ppar ["p" .. tostring( x )] or "-";
--@				rtab [x] = ppar ["r" .. tostring( x )] or "-";
--@				qtab [x] = ppar ["q" .. tostring( x )] or "-";
				ttab [x] = ppar ["t" .. tostring( x )] or "-";
				wtab [x] = ppar ["w" .. tostring( x )] or "-";
			end
		end
		max  = x;
	end -- for
	odd  = y % 2; -- 1 when last one not paired

	if plus > "" and opt == "" then
		opt = plus;		-- discrepancy ? opt has priority
	end
	x   = 0;
	y   = 0;
	local vv = "";
	for _, v in ipairs(ppar) do
		v = mw.text.trim ( v );
		if v ~= "+" and v ~= "-" then
			y = y + 1;
			if gpar.par == "P"	-- pairs of (user, name)
			and y % 2 == 1 		-- 1=user, 0=name 
			and odd == 0 then	-- last one paired
				vv = v;	 		-- userid
			else
				x  =  x + 1;
				local cs = cas;  if ctab[x] ~= "-" then  cs = ctab[x] end
				local hl = hil;  if htab[x] ~= "-" then  hl = htab[x] end
				local lk = lnk;  if ltab[x] ~= "-" then  lk = ltab[x] end
				local nm = nam;  if ntab[x] ~= "-" then  nm = ntab[x] end
				local op = opt;  if otab[x] ~= "/" then  op = otab[x] end
				local pg = pag;  if ptab[x] ~= "-" then  pg = ptab[x] end
--@				local p4 = pr4;  if rtab[x] ~= "-" then  p4 = rtab[x] end
--@				local p5 = pr5;  if qtab[x] ~= "-" then  p5 = qtab[x] end
				local tr = trl;  if ttab[x] ~= "-" then  tr = ttab[x] end
				local wk = wik;  if wtab[x] ~= "-" then  wk = wtab[x] end

				if gpar.par == "P"	then	--	y%2 = 0 (name)
					if odd == 1	then	--	no: last user:
						vv = v;			--	user
					else
						nm = v;			--	name
					end
				else 
					vv = v;
				end
				if hl ~= "" then
					if nm == "" then nm = vv; end
					nm = "<" .. hl .. ">" .. nm .. "</" .. hl .. ">";
				end
				local p1 = "";  -- prefix
				local p2 = "";  -- postfix
				if pg == "t" or pg == "wt" or pg == "tw" then	p1 = "&#32;talk";	 end
				if pg == "w" or pg == "wt" or pg == "tw" then	p2 = "~commonswiki"; end
--					{{Uc}} --> [[Special:Contributions/userid]]

				if vv ~= "" and vv ~= "×" then
					if gpar.dir == "I" 
					or gpar.dir == "O" 
					or gpar.dir == "U" 
					or gpar.dir == "V" then  -- vertical list
						if out == 0 then
							table.insert(Xtab, frame:expandTemplate{ title = "=", args = { prim } });
						end
						table.insert(Xtab, frame:expandTemplate{ title = "=", args = { prfx } });
						out = out + 1;
					else						--	
						if x == 1 then
							x = 1		--	??? horizontal list initializing (text)
						elseif x == max then
							table.insert(Xtab, frame:expandTemplate{ title = "Conj-and" });
						else
							table.insert(Xtab, frame:expandTemplate{ title = "Comma" });
						end
					end

					table.insert(Xtab, frame:expandTemplate{ title = "U/main", args = { vv, nm, wk, op, link=lk, par1=p1, par2=p2, case=cs, i18n=tr} });
				end
			end
		end
	end -- for

	if	out > 0 and pend > " " then
		table.insert(Xtab, frame:expandTemplate{ title = "=", args = { pend } });
	end
	return  table.concat (Xtab);
end  --  function userlist
--
-- for Template:Legend-table  (param pairs)
function p.legendt (frame) 
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local lg = args.lang or "";
	local v1 = ""
--                                    same problem when not a last pair
	for _, v in ipairs(args) do
		if v1 == "" then   
			v1 =  v;
		else
			table.insert(otab, frame:expandTemplate{ title = "Legend", args = { lang = lg, v1, v } });
			v1 = "";
		end	
	end
	if v1 ~= "" then
		table.insert(otab, frame:expandTemplate{ title = "Legend", args = { lang = lg, v1, "" } });	-- last elem
	end
	return  table.concat (otab)
end --  function legendt


-- for Template:ColorString (Igen/cbox   -   param pairs)
function p.colorbox (frame) 
	local args = mw.getCurrentFrame(): getParent().args;
	local otab = {};
	local lg = args.lang or "{{PAGELANGUAGE}}"; --
	local v1 = ""
	local p2 = ""
	for i, v in ipairs(args) do
		if i <= 2 then 
			p2 = v; 
		else	
			if v1 == "" then   
				v1 = mw.text.trim( v );
			else
				table.insert(otab, frame:expandTemplate{ title = "Igen/cbox", args = { v1, v, p2, lang = lg } });
				v1 = "";
			end
		end
	end
	if v1 ~= "" then
		table.insert(otab, frame:expandTemplate{ title = "Igen/cbox", args = { v1, "", p2, lang = lg } });	-- last elem		
	end
	return  table.concat (otab)
end --  function colorbox


-- Template:Tle  
function p.tleparm (frame) 
--  local lprm = frame     -- local parms
--	local gprm = frame.args-- global parms
	local pprm = mw.getCurrentFrame(): getParent().args;
	local par1 = "";
	local par3 = pprm.f      or ""; -- form feed
	local par4 = pprm.style  or ""; -- style for value
	local par5 = pprm.style2 or ""; -- style for param
	local numb = pprm.number or "";
	local ctab = {}

	numb = mw.text.trim( numb );
	for i, v in ipairs(pprm) do
		par1 = pprm ["p" .. tostring( i )] or "";
		if par1 == "" and numb ~= "" then 
			par1 = tostring( i )
		end
		if mw.text.trim(v) == "" then v = "&thinsp;" end
		table.insert( ctab, frame:expandTemplate{ title = "Tle/parm",  args = {  par1, v, par3, par4, par5} } );
	end
 	return  table.concat (ctab)
end --  function tleparm


return p;