Module:Infobox military conflict
require('strict')
 
 local infoboxStyle = mw.loadData('Module:WPMILHIST Infobox style')
 local templatestyles = 'Module:Infobox military conflict/styles.css'
 
 local IMC = {}
 IMC.__index = IMC
 
 function IMC:renderPerCombatant(builder, headerText, prefix, suffix)
 	prefix = prefix or ''
 	suffix = suffix or ''
 	local colspans = {}
 	
 	-- This may result in colspans[1] getting set twice, but
 	-- this is no big deal. The second set will be correct.
 	local lastCombatant = 1
 	
 	for i = 1,self.combatants do
 		if self.args[prefix .. i .. suffix] then
 			colspans[lastCombatant] = i - lastCombatant
 			lastCombatant = i
 		end
 	end
 
 	local jointText = self.args[prefix .. (self.combatants + 1) .. suffix]
 	
 	if headerText and (colspans[1] or jointText) then
 		builder:tag('tr')
 			:tag('th')
 				:attr('colspan', self.combatants)
 				:cssText(infoboxStyle.header_raw)
 				:wikitext(headerText)
 	end
 
 	-- The only time colspans[1] wouldn't be set is if no
 	-- combatant has a field with the given prefix and suffix.
 	if colspans[1] then
 		-- Since each found argument set the colspan for the previous
 		-- one, the final one wasn't set above, so set it now.
 		colspans[lastCombatant] = self.combatants - lastCombatant + 1
 		builder = builder:tag('tr')
 		for i = 1,self.combatants do
 			-- At this point, colspans[i] will be set for i=1 unconditionally, and for
 			-- any other value of i where self.args[prefix .. i .. suffix] is set.
 			if colspans[i] then
 				builder:tag('td')
 					-- don't bother emitting colspan=&quot;1&quot;
 					:attr('colspan', colspans[i] ~= 1 and colspans[i] or nil)
 					:css('width', math.floor(100 / self.combatants * colspans[i] + 0.5) .. '%')
 					-- no border on the right of the rightmost column
 					:css('border-right', i ~= lastCombatant and infoboxStyle.internal_border or nil)
 					-- no padding on the left of the leftmost column
 					:css('padding-left', i ~= 1 and '0.25em' or nil)
 					-- don't show the border if we're directly under a header
 					:css('border-top', not headerText and infoboxStyle.internal_border or nil)
 					:newline()
 					:wikitext(self.args[prefix .. i .. suffix])
 			end
 		end
 	end
 
 	if jointText then
 		builder:tag('tr')
 			:tag('td')
 				:attr('colspan', self.combatants)
 				:css('text-align', 'center')
 				-- don't show the border if we're directly under a header
 				:css('border-top', (not headerText or colspans[1]) and infoboxStyle.internal_border or nil)
 				:newline()
 				:wikitext(jointText)
 	end
 end
 
 function IMC:renderHeaderTable(builder)
 	builder = builder:tag('table')
 		:css('width', '100%')
 		:css('margin', 0)
 		:css('padding', 0)
 		:css('border', 0)
 		:css('display', 'inline-table')
 
 	if self.args.date then
 		builder:tag('tr')
 			:tag('th')
 				:css('padding-right', '1em')
 				:wikitext('தேதி')
 			:done()
 			:tag('td')
 				:wikitext(self.args.date)
 	end
 
 	builder = builder:tag('tr')
 		:tag('th')
 			:css('padding-right', '1em')
 			:wikitext('அமைவிடம்')
 		:done()
 		:tag('td')
 			:tag('div')
 				:addClass('location')
 				:wikitext(self.args.place or '{&amp;#123;{place}&amp;#125;}') -- hack so that people who don't know Lua know that this parameter is required
 			:done()
 	if self.args.coordinates then
 		builder:wikitext(self.args.coordinates)
 	end
 	builder = builder:done():done()
 
 	-- only for &quot;Putsch&quot;
     if self.args.action then
 		builder:tag('tr')
 			:tag('th')
 				:css('padding-right', '1em')
 				:wikitext(self.args.action and 'நடவடிக்கை')
 			:done()
 			:tag('td')
 				:wikitext(self.args.action)
 	end
 
 	if self.args.status or self.args.result then
 		builder:tag('tr')
 			:tag('th')
 				:css('padding-right', '1em')
 				:wikitext(self.args.status and 'நிலை' or 'விளைவு')
 			:done()
 			:tag('td')
 				:addClass('status')
 				:newline()
 				:wikitext(self.args.status or self.args.result)
 	end
 
 	if self.args.territory then
 		builder:tag('tr')
 			:tag('th')
 				:css('padding-right', '1em')
 				:wikitext('நிலப்பகுதி&lt;br&gt;மாற்றங்கள்')
 			:done()
 			:tag('td')
 				:newline()
 				:wikitext(self.args.territory)
 	end
 end
 
 function IMC:render()
 	local builder = mw.html.create()
 	if self.args.campaignbox then
 		-- this should be the same as using {{stack|clear=right|...}}
 		builder:wikitext(self.frame:expandTemplate{ title = 'stack begin', args = { clear='true'} })
 	end
 	builder = builder:tag('table')
 		:addClass('infobox vevent')
 		:cssText(infoboxStyle.main_box_raw)
 		:css('width', self.args.width or nil)
 
 	builder:tag('tr')
 		:tag('th')
 			:addClass('summary')
 			:attr('colspan', self.combatants)
 			:cssText(infoboxStyle.header_raw)
 			:wikitext(self.args.conflict or mw.title.getCurrentTitle().text)
 	if self.args.partof then
 		builder:tag('tr')
 			:tag('td')
 				:attr('colspan', self.combatants)
 				:cssText(infoboxStyle.sub_header_raw)
 				:wikitext(self.args.partof 'பகுதியாக')
 				end
 	if self.args.image then
 		builder:tag('tr')
 			:tag('td')
 				:attr('colspan', self.combatants)
 				:cssText(infoboxStyle.image_box_raw)
 				:wikitext(string.format('%s%s%s',
 					require('Module:InfoboxImage').InfoboxImage{args = {
 						image = self.args.image,
 						size = self.args.image_size,
 						sizedefault = 'frameless',
 						upright = 1,
 						alt = self.args.alt
 					}},
 					self.args.caption and '&lt;br&gt;' or '',
 					self.args.caption or ''
 				))
 	end
 	self:renderHeaderTable(builder:tag('tr'):tag('td'):attr('colspan', self.combatants))
 	self:renderPerCombatant(builder, self.args.combatants_header or 'பிரிவினர்', 'பிரிவினர்')
 	-- can be un-hardcoded once gerrit:165108 is merged
 	for _,v in ipairs{'a','b','c','d'} do
 		self:renderPerCombatant(builder, nil, 'பிரிவினர்', v)
 	end
 	
 	self:renderPerCombatant(builder, self.args.commanders_header or 'தளபதிகள் மற்றும் தலைவர்கள்', 'தளபதி')
 	for _,v in ipairs{'a','b','c','d'} do
 		self:renderPerCombatant(builder, nil, 'தளபதி', v)
 	end
 	
 	self:renderPerCombatant(builder, self.args.units_header or 'சம்பந்தப்பட்ட படைப்பிரிவுகள்', 'படைப்பிரிவுகள்')
 	self:renderPerCombatant(builder, self.args.strengths_header or 'பலம்', 'பலம்')
 	self:renderPerCombatant(builder, self.args.polstrengths_header or 'அரசியல் ஆதரவு', 'அரசியல் பலம்')
 	self:renderPerCombatant(builder, self.args.milstrengths_header or 'படைத்துறை ஆதரவு', 'படைத்துறை பலம்')
 	self:renderPerCombatant(builder, self.args.casualties_header or 'உயிரிழப்புகள் மற்றும் இழப்புகள்', 'உயிரிழப்புகள்')
 
 	if self.args.notes then
 		builder:tag('tr')
 			:tag('td')
 				:attr('colspan', self.combatants)
 				:css('border-top', infoboxStyle.section_border)
 				:newline()
 				:wikitext(self.args.notes)
 	end
 	if self.args.map_type then
 		builder:tag('tr')
 			:tag('td')
 				:attr('colspan', self.combatants)
 				:css('border-top', infoboxStyle.internal_border)
 				:node(require('Module:Location map').main(self.frame, {
 					self.args.map_type,
 					relief = self.args.map_relief,
 					coordinates = self.args.coordinates,
 					width = self.args.map_size or 220,
 					float = 'center',
 					border = 'none',
 					mark = self.args.map_mark,
 					marksize = self.args.map_marksize or 8,
 					label = self.args.map_label,
 					alt = self.args.map_alt,
 					caption = self.args.map_caption or (' உள்ள அமைவிடம்'
 						.. (require('Module:Location map').data(self.frame, {self.args.map_type, 'name'})))
 				}))
 	end
 	builder = builder:done()
 	if self.args.campaignbox then
 		builder = builder:done()
 		builder:wikitext(self.args.campaignbox .. self.frame:expandTemplate{ title = 'stack end'})
 	end
 	return builder
 end
 
 function IMC.new(frame, args)
 	if not args then
 		args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:Infobox military conflict'})
 	end
 	local obj = {
 		frame = frame,
 		args = args
 	}
 
 	-- until gerrit:165108 is merged, there's still a cap on combatants, but as soon as it merges, we can update this little bit of code to uncap it
 	-- also, don't try to make this more efficient, or references could be in the wrong order
 	obj.combatants = 2
 	for _,v in ipairs{'', 'a', 'b', 'c', 'd'} do
 		for i = 1,5 do
 			if args['combatant' .. i .. v] then
 				obj.combatants = math.max(obj.combatants, i)
 			end
 		end
 	end
 
 	return setmetatable(obj, IMC)
 end
 
 local p = {}
 
 function p.main(frame)
 	return frame:extensionTag{ name = 'templatestyles', args = { src = templatestyles} } .. tostring(IMC.new(frame):render())
 end