local check_for_unknown_parameters = require("Module:Check for unknown parameters")._check  local p = {} local args = {} local origArgs = {} local root local lists = { 	plainlist_t = { 		patterns = { 			'^plainlist$', 			'%splainlist$', 			'^plainlist%s', 			'%splainlist%s' 		}, 		found = false, 		styles = 'প্রান্তরতালিকা/শৈলী.css' 	}, 	hlist_t = { 		patterns = { 			'^hlist$', 			'%shlist$', 			'^hlist%s', 			'%shlist%s' 		}, 		found = false, 		styles = 'Hlist/শৈলী.css' 	} }  local function has_list_class(args_to_check) 	for _, list in pairs(lists) do 		if not list.found then 			for _, arg in pairs(args_to_check) do 				for _, pattern in ipairs(list.patterns) do 					if mw.ustring.find(arg or , pattern) then 						list.found = true 						break 					end 				end 				if list.found then break end 			end 		end 	end end  -- Returns the union of the values of two tables, as a sequence. local function union(t1, t2)  	local vals = {} 	for k, v in pairs(t1) do 		vals[v] = true 	end 	for k, v in pairs(t2) do 		vals[v] = true 	end 	local ret = {} 	for k, v in pairs(vals) do 		table.insert(ret, k) 	end 	return ret end  -- Returns a table containing the numbers of the arguments that exist -- for the specified prefix. For example, if the prefix was 'data', and -- 'data1', 'data2', and 'data5' exist, it would return {1, 2, 5}. local function getArgNums(prefix, suffix) 	local nums = {} 	for k, v in pairs(args) do 		local num = tostring(k):match('^' .. prefix .. '([0-9]%d*)' .. suffix .. '$') 		if num then table.insert(nums, tonumber(num)) end 	end 	table.sort(nums) 	return nums end  -- Adds a row to the infobox, with either a header cell -- or a label/data cell combination. local function addRow(rowArgs) 	if rowArgs.header then 		has_list_class({rowArgs.rowclass, rowArgs.class, args.headerclass}) 		root 			:tag('tr') 				:addClass(rowArgs.rowclass) 				:cssText(rowArgs.rowstyle) 				:tag('th') 					:attr('colspan', '4') 					:addClass('infobox-header') 					:addClass(rowArgs.class) 					:addClass(args.headerclass) 					-- @deprecated next; target .infobox-<name> .infobox-header 					:cssText(args.headerstyle) 					:cssText(rowArgs.rowcellstyle) 					:cssText(args.extracellstyles[rowArgs.num .. 'h']) 					:wikitext(rowArgs.header) 	elseif rowArgs.label then 		if rowArgs.data then 			has_list_class({rowArgs.rowclass, rowArgs.class}) 			local row = root:tag('tr') 			row:addClass(rowArgs.rowclass) 			row:cssText(rowArgs.rowstyle) 			row 				:tag('th') 					:attr('scope', 'row') 					:addClass('infobox-label') 					:cssText(args.labelstyle) 					:cssText(rowArgs.rowcellstyle) 					:cssText(args.extracellstyles[rowArgs.num .. 'l']) 					:wikitext(rowArgs.label) 					:done() 		 			local dataCell = row:tag('td') 			dataCell 				:attr('colspan', '3') 				:addClass('infobox-data') 				:addClass(rowArgs.class) 				-- @deprecated next; target .infobox-<name> .infobox-data 				:cssText(rowArgs.datastyle) 				:cssText(rowArgs.rowcellstyle) 				:cssText(args.extracellstyles[rowArgs.num]) 				:newline() 				:wikitext(rowArgs.data) 		elseif rowArgs.dataa or rowArgs.datab or rowArgs.datac then 			has_list_class({rowArgs.rowclass, rowArgs.classa}) 			local row = root:tag('tr') 			row:addClass(rowArgs.rowclass) 			row:cssText(rowArgs.rowstyle) 			row 				:tag('th') 					:attr('scope', 'row') 					:addClass('infobox-label') 					:cssText(args.labelstyle) 					:cssText(rowArgs.rowcellstyle) 					:cssText(args.extracellstyles[rowArgs.num .. 'l']) 					:wikitext(rowArgs.label) 					:done()  			local dataCella = row:tag('td') 			dataCella 				:addClass('infobox-data infobox-data-a') 				:addClass(rowArgs.classa) 				-- @deprecated next; target .infobox-<name> .infobox-data-a 				:cssText(rowArgs.dataastyle) 				:cssText(rowArgs.rowcellstyle) 				:cssText(args.extracellstyles[rowArgs.num .. 'a']) 				:newline() 				:wikitext(rowArgs.dataa) 			if rowArgs.renderb then 				has_list_class({rowArgs.classb}) 				local dataCellb = row:tag('td') 				dataCellb 					:addClass('infobox-data infobox-data-b') 					:addClass(rowArgs.classb) 					-- @deprecated next; target .infobox-<name> .infobox-data-b 					:cssText(rowArgs.databstyle) 					:cssText(rowArgs.rowcellstyle) 					:cssText(args.extracellstyles[rowArgs.num .. 'b']) 					:newline() 					:wikitext(rowArgs.datab) 			end 			if rowArgs.renderc then 				has_list_class({rowArgs.classc}) 				local dataCellc = row:tag('td') 				dataCellc 					:addClass('infobox-data infobox-data-c') 					:addClass(rowArgs.classc) 					-- @deprecated next; target .infobox-<name> .infobox-data-c 					:cssText(rowArgs.datacstyle) 					:cssText(rowArgs.rowcellstyle) 					:cssText(args.extracellstyles[rowArgs.num .. 'c']) 					:newline() 					:wikitext(rowArgs.datac) 			end 		end 	elseif rowArgs.data then 		has_list_class({rowArgs.rowclass, rowArgs.class}) 		local row = root:tag('tr') 		row:addClass(rowArgs.rowclass) 		row:cssText(rowArgs.rowstyle) 					 		local dataCell = row:tag('td') 		dataCell 			:attr('colspan', '4') 			:addClass('infobox-full-data') 			:addClass(rowArgs.class) 			-- @deprecated next; target .infobox-<name> .infobox-full-data 			:cssText(rowArgs.datastyle) 			:cssText(rowArgs.rowcellstyle) 			:cssText(args.extracellstyles[rowArgs.num]) 			:newline() 			:wikitext(rowArgs.data) 	end end  local function renderTitle() 	if not args.title then return end 	has_list_class({args.titleclass})  	root 		:tag('caption') 			:addClass('infobox-title') 			:addClass(args.titleclass) 			-- @deprecated next; target .infobox-<name> .infobox-title 			:cssText(args.titlestyle) 			:wikitext(args.title) end  local function renderAboveRow() 	if not args.above then return end 	has_list_class({args.aboveclass}) 	 	root 		:tag('tr') 			:tag('th') 				:attr('colspan', '4') 				:addClass('infobox-above') 				:addClass(args.aboveclass) 				-- @deprecated next; target .infobox-<name> .infobox-above 				:cssText(args.abovestyle) 				:wikitext(args.above) end  local function renderBelowRow() 	if not args.below then return end 	has_list_class({args.belowclass}) 	 	root 		:tag('tr') 			:tag('td') 				:attr('colspan', '4') 				:addClass('infobox-below') 				:addClass(args.belowclass) 				-- @deprecated next; target .infobox-<name> .infobox-below 				:cssText(args.belowstyle) 				:newline() 				:wikitext(args.below) end  local function addSubheaderRow(subheaderArgs) 	if not subheaderArgs.data then return end 	 	has_list_class({subheaderArgs.rowclass, subheaderArgs.class}) 	local row = root:tag('tr') 	row:addClass(subheaderArgs.rowclass) 				 	local dataCell = row:tag('td') 	dataCell 		:attr('colspan', '4') 		:addClass('infobox-subheader') 		:addClass(subheaderArgs.class) 		:cssText(subheaderArgs.datastyle) 		:cssText(subheaderArgs.rowcellstyle) 		:newline() 		:wikitext(subheaderArgs.data) end  local function renderSubheaders() 	if args.subheader then 		args.subheader1 = args.subheader 	end 	if args.subheaderrowclass then 		args.subheaderrowclass1 = args.subheaderrowclass 	end 	local subheadernums = getArgNums('subheader',) 	for k, num in ipairs(subheadernums) do 		addSubheaderRow({ 			data = args['subheader' .. tostring(num)], 			-- @deprecated next; target .infobox-<name> .infobox-subheader 			datastyle = args.subheaderstyle, 			rowcellstyle = args['subheaderstyle' .. tostring(num)], 			class = args.subheaderclass, 			rowclass = args['subheaderrowclass' .. tostring(num)] 		}) 	end end  local function addImageRow(imageArgs) 	if not imageArgs.data then return end 	 	has_list_class({imageArgs.rowclass, imageArgs.class}) 	local row = root:tag('tr') 	row:addClass(imageArgs.rowclass) 				 	local dataCell = row:tag('td') 	dataCell 		:attr('colspan', '4') 		:addClass('infobox-image') 		:addClass(imageArgs.class) 		:cssText(imageArgs.datastyle) 		:newline() 		:wikitext(imageArgs.data) end  local function renderImages() 	if args.image then 		args.image1 = args.image 	end 	if args.caption then 		args.caption1 = args.caption 	end 	local imagenums = getArgNums('image',) 	for k, num in ipairs(imagenums) do 		local caption = args['caption' .. tostring(num)] 		local data = mw.html.create():wikitext(args['image' .. tostring(num)]) 		if caption then 			data 				:tag('div') 					:addClass('infobox-caption') 					-- @deprecated next; target .infobox-<name> .infobox-caption 					:cssText(args.captionstyle) 					:wikitext(caption) 		end 		addImageRow({ 			data = tostring(data), 			-- @deprecated next; target .infobox-<name> .infobox-image 			datastyle = args.imagestyle, 			class = args.imageclass, 			rowclass = args['imagerowclass' .. tostring(num)] 		}) 	end end  -- Gets the union of the header and data argument numbers, -- and renders them all in order local function renderRows() 	local rownums = union(getArgNums('header',), getArgNums('data','[abc]?')) 	local datab_count = #(getArgNums('data','b')) 	local datac_count = #(getArgNums('data','c')) 	table.sort(rownums) 	for k, num in ipairs(rownums) do 		addRow({ 			num = tostring(num), 			renderb = datab_count > 0, 			renderc = datac_count > 0, 			header = args['header' .. tostring(num)], 			label = args['label' .. tostring(num)], 			data = args['data' .. tostring(num)], 			datastyle = args.datastyle, 			class = args['class' .. tostring(num)], 			dataa = args['data' .. tostring(num) .. 'a'], 			dataastyle = args.datastylea, 			classa = args['class' .. tostring(num) .. 'a'], 			datab = args['data' .. tostring(num) .. 'b'], 			databstyle = args.datastyleb, 			classb = args['class' .. tostring(num) .. 'b'], 			datac = args['data' .. tostring(num) .. 'c'], 			datacstyle = args.datastylec, 			classc = args['class' .. tostring(num) .. 'c'], 			rowclass = args['rowclass' .. tostring(num)], 			-- @deprecated next; target .infobox-<name> rowclass 			rowstyle = args['rowstyle' .. tostring(num)], 			rowcellstyle = args['rowcellstyle' .. tostring(num)], 		}) 	end end  local function renderNavBar() 	if not args.name then return end 	 	root 		:tag('tr') 			:tag('td') 				:attr('colspan', '4') 				:addClass('infobox-navbar') 				:wikitext(require('Module:Navbar')._navbar{ 					args.name, 					mini = 1, 				}) end  local function renderItalicTitle() 	local italicTitle = args['italic title'] and mw.ustring.lower(args['italic title']) 	if italicTitle ==  or italicTitle == 'force' or italicTitle == 'yes' then 		root:wikitext(require('মডিউল:বাঁকা শিরোনাম')._main({})) 	end end  -- Render tracking categories. args.decat == turns off tracking categories. local function renderTrackingCategories() 	local title = mw.title.getCurrentTitle() 	if args.decat == 'yes' then return end 	 	if #(getArgNums('data','[abc]?')) == 0 and title.namespace == 0 then 		root:wikitext('বিষয়শ্রেণী:নিবন্ধ যেটি তথ্য সারি ছাড়া তথ্যছক টেমপ্লেট ব্যবহার করছে') 	end 	 	root:wikitext(check_for_unknown_parameters({ 		checkpositional = "y", 		ignoreblank = "y", 		regexp1 = "header[%d]+", 		regexp2 = "label[%d]+", 		regexp3 = "data[%d]+[abc]?", 		regexp4 = "class[%d]+[abc]?", 		regexp5 = "rowclass[%d]+", 		regexp6 = "rowstyle[%d]+", 		regexp7 = "rowcellstyle[%d]+", 		unknown = "_VALUE_" .. title.text .. "", 		"above", "aboveclass", "aboverowclass", "abovestyle", "below", "belowclass", 		"belowrowclass", "belowstyle", "bodyclass", "bodystyle", "caption", "caption1", 		"caption2", "captionstyle", "child", "datastyle", "datastylea", "datastyleb", 		"datastylec", "extracellstyles", "headerstyle", "image", "image1", "image2", 		"imageclass", "imagerowclass1", "imagerowclass2", "imagestyle", "labelstyle", 		"name", "subbox", "subheader", "subheader2", "subheaderclass", 		"subheaderrowclass1", "subheaderrowclass2", "subheaderstyle", "templatestyles", 		"title", "titleclass", "titlestyle", 	}, origArgs))  	if origArgs.header0 or origArgs.label0 or origArgs.data0 or origArgs.data0a 		or origArgs.data0b or origArgs.data0c or origArgs.class0 or origArgs.rowclass0 then 			root:wikitext("বিষয়শ্রেণী:শিরোনাম০ বা লেবেল০ বা ডেটা০ সহ তথ্যছক৩কলাম ব্যবহৃত পাতাসমূহ") 	end  	if title.namespace == 10 and mw.ustring.sub(title.text, 1, 7) == "Infobox" then 		root:wikitext("" .. mw.ustring.sub(title.text, 9) .. "")	 	end end  --[=[ Loads the templatestyles for the infobox.  TODO: FINISH loading base templatestyles here rather than in MediaWiki:Common.css. There are 4-5000 pages with 'raw' infobox tables. See Mediawiki_talk:Common.css/to_do#Infobox and/or come help :). When we do this we should clean up the inline CSS below too. Will have to do some bizarre conversion category like with sidebar.  ]=] local function loadTemplateStyles() 	local frame = mw.getCurrentFrame() 	 	local hlist_templatestyles =  	if lists.hlist_t.found then 		hlist_templatestyles = frame:extensionTag{ 			name = 'templatestyles', args = { src = lists.hlist_t.styles } 		} 	end 	 	local plainlist_templatestyles = 	if lists.plainlist_t.found then 		plainlist_templatestyles = frame:extensionTag{ 			name = 'templatestyles', args = { src = lists.plainlist_t.styles } 		} 	end 	 	-- See function description 	local base_templatestyles = frame:extensionTag{ 		name = 'templatestyles', args = { src = 'মডিউল:Infobox/শৈলী.css' } 	}  	local templatestyles =  	if args['templatestyles'] then 		templatestyles = frame:extensionTag{ 			name = 'templatestyles', args = { src = args['templatestyles'] } 		} 	end 	 	local child_templatestyles = 	if args['child templatestyles'] then 		child_templatestyles = frame:extensionTag{ 			name = 'templatestyles', args = { src = args['child templatestyles'] } 		} 	end 	 	local grandchild_templatestyles =  	if args['grandchild templatestyles'] then 		grandchild_templatestyles = frame:extensionTag{ 			name = 'templatestyles', args = { src = args['grandchild templatestyles'] } 		} 	end  	return table.concat({ 		-- hlist -> plainlist -> base is best-effort to preserve old Common.css ordering. 		-- this ordering is not a guarantee because the rows of interest invoking 		-- each class may not be on a specific page 		hlist_templatestyles, 		plainlist_templatestyles, 		base_templatestyles, 		templatestyles, 		child_templatestyles, 		grandchild_templatestyles 	})	 	 end  -- common functions between the child and non child cases local function structure_infobox_common() 	renderSubheaders() 	renderImages() --	preprocessRows() 	renderRows() 	renderBelowRow() 	renderNavBar() 	renderItalicTitle() --	renderEmptyRowCategories() 	renderTrackingCategories() --	cleanInfobox() end  -- Specify the overall layout of the infobox, with special settings if the -- infobox is used as a 'child' inside another infobox. local function _infobox()  	root = mw.html.create('table') 	has_list_class({args.bodyclass}) 		 	root 		:addClass((args.child == 'yes' or args.subbox == 'yes') and 'infobox-subbox' or 'infobox') 		:addClass(args.child == 'yes' and 'infobox-3cols-child' or nil) 		-- avoid https://phabricator.wikimedia.org/F55300125 		:addClass('infobox-table') 		:addClass(args.bodyclass) 		-- @deprecated next; target .infobox-<name> 		:cssText(args.bodystyle) 	 	renderTitle() 	renderAboveRow() 	structure_infobox_common() 	 	return loadTemplateStyles() .. tostring(root) end  -- If the argument exists and isn't blank, add it to the argument table. -- Blank arguments are treated as nil to match the behaviour of ParserFunctions. local function preprocessSingleArg(argName) 	if origArgs[argName] and origArgs[argName] ~=  then 		args[argName] = origArgs[argName] 	end end  -- Assign the parameters with the given prefixes to the args table, in order, in -- batches of the step size specified. This is to prevent references etc. from -- appearing in the wrong order. The prefixTable should be an array containing -- tables, each of which has two possible fields, a "prefix" string and a -- "depend" table. The function always parses parameters containing the "prefix" -- string, but only parses parameters in the "depend" table if the prefix -- parameter is present and non-blank. local function preprocessArgs(prefixTable, step) 	if type(prefixTable) ~= 'table' then 		error("Non-table value detected for the prefix table", 2) 	end 	if type(step) ~= 'number' then 		error("Invalid step value detected", 2) 	end  	-- Get arguments without a number suffix, and check for bad input. 	for i,v in ipairs(prefixTable) do 		if type(v) ~= 'table' or type(v.prefix) ~= "string" or 			(v.depend and type(v.depend) ~= 'table') then 			error('Invalid input detected to preprocessArgs prefix table', 2) 		end 		preprocessSingleArg(v.prefix) 		-- Only parse the depend parameter if the prefix parameter is present 		-- and not blank. 		if args[v.prefix] and v.depend then 			for j, dependValue in ipairs(v.depend) do 				if type(dependValue) ~= 'string' then 					error('Invalid "depend" parameter value detected in preprocessArgs') 				end 				preprocessSingleArg(dependValue) 			end 		end 	end  	-- Get arguments with number suffixes. 	local a = 0 -- Counter variable. 	local moreArgumentsExist = true 	while moreArgumentsExist == true do 		moreArgumentsExist = false 		for i = a, a + step - 1 do 			for j,v in ipairs(prefixTable) do 				local prefixArgName = v.prefix .. tostring(i) .. (v.suffix or ) 				if origArgs[prefixArgName] then 					-- Do another loop if any arguments are found, even blank ones. 					moreArgumentsExist = true 					preprocessSingleArg(prefixArgName) 				end 				-- Process the depend table if the prefix argument is present 				-- and not blank, or we are processing "prefix1" and "prefix" is 				-- present and not blank, and if the depend table is present. 				if v.depend and (args[prefixArgName] or (i == 1 and args[v.prefix])) then 					for j,dependValue in ipairs(v.depend) do 						local dependArgName = dependValue .. tostring(i) .. (v.dependsuffix or ) 						preprocessSingleArg(dependArgName) 					end 				end 			end 		end 		a = a + step 	end end  -- Parse the data parameters in the same order that the old  did, so -- that references etc. will display in the expected places. Parameters that -- depend on another parameter are only processed if that parameter is present, -- to avoid phantom references appearing in article reference lists. local function parseDataParameters() 	preprocessSingleArg('child') 	preprocessSingleArg('bodyclass') 	preprocessSingleArg('subbox') 	preprocessSingleArg('bodystyle') 	preprocessSingleArg('title') 	preprocessSingleArg('titleclass') 	preprocessSingleArg('titlestyle') 	preprocessSingleArg('above') 	preprocessSingleArg('aboveclass') 	preprocessSingleArg('abovestyle') 	preprocessArgs({ 		{prefix = 'subheader', depend = {'subheaderstyle', 'subheaderrowclass'}} 	}, 10) 	preprocessSingleArg('subheaderstyle') 	preprocessSingleArg('subheaderclass') 	preprocessSingleArg('image') 	preprocessSingleArg('caption') 	preprocessArgs({ 		{prefix = 'image', depend = {'caption', 'imagerowclass'}} 	}, 10) 	preprocessSingleArg('captionstyle') 	preprocessSingleArg('imagestyle') 	preprocessSingleArg('imageclass') 	preprocessArgs({ 		{prefix = 'header'}, 		{prefix = 'data', depend = {'label'}}, 		{prefix = 'data', suffix = 'a', depend = {'label'}}, 		{prefix = 'data', suffix = 'a'}, 		{prefix = 'data', suffix = 'b', depend = {'label'}}, 		{prefix = 'data', suffix = 'b'}, 		{prefix = 'data', suffix = 'c', depend = {'label'}}, 		{prefix = 'data', suffix = 'c'}, 		{prefix = 'rowclass'}, 		{prefix = 'rowstyle'}, 		{prefix = 'rowcellstyle'}, 		{prefix = 'class'} 	}, 50) 	preprocessSingleArg('headerclass') 	preprocessSingleArg('headerstyle') 	preprocessSingleArg('labelstyle') 	preprocessSingleArg('datastyle') 	preprocessSingleArg('datastylea') 	preprocessSingleArg('datastyleb') 	preprocessSingleArg('datastylec') 	preprocessSingleArg('below') 	preprocessSingleArg('belowclass') 	preprocessSingleArg('belowstyle') 	preprocessSingleArg('name') 	-- different behaviour for italics if blank or absent 	args['italic title'] = origArgs['italic title'] 	preprocessSingleArg('decat') 	preprocessSingleArg('templatestyles') 	preprocessSingleArg('child templatestyles') 	preprocessSingleArg('grandchild templatestyles')  	args['extracellstyles'] = {} 	for line in mw.text.gsplit(origArgs['extracellstyles'] or , '\n') do 		local equals = line:find('=') 		if equals then 			for i in mw.text.gsplit(line:sub(1, equals - 1), '%s*,%s*') do 				args.extracellstyles[i] = line:sub(equals + 1) 			end 		end 	end end  -- If called via #invoke, use the args passed into the invoking template. -- Otherwise, for testing purposes, assume args are being passed directly in. function p.infobox(frame) 	if frame == mw.getCurrentFrame() then 		origArgs = frame:getParent().args 	else 		origArgs = frame 	end 	 	parseDataParameters() 	 	return _infobox() end  -- For calling via #invoke within a template function p.infoboxTemplate(frame, extra_args) 	origArgs = extra_args or {} 	for k,v in pairs(frame.args) do origArgs[k] = mw.text.trim(v) end 	 	parseDataParameters() 	 	return _infobox() end  -- Shortcut for making child infoboxes via #invoke. function p.child(frame) 	return p.infoboxTemplate(frame, {child = "yes"}) end  return p