Editing Module:Gallery items

-- this module implements [[template:gallery items]]
local p = {}

function p.main(frame)
	local getArgs = require('Module:Arguments').getArgs
	local args = getArgs(frame)

	local width = args.width or '150'

	local items = {}
	local itemnums = {}
	for k, v in pairs(args) do
		if k ~= nil and tonumber(k) and math.fmod(k,2) == 1 then
			local i = math.floor(k/2) + 1
			table.insert( itemnums, i )
			local item = mw.html.create('li')
				:addClass('gallerybox')
				:css('width', (args['width' .. k] or width)+5 .. 'px')
			local itemdiv = item:tag('div'):css('width', (args['width' .. k] or width)+5 .. 'px')
			itemdiv:tag('div')
					:addClass('thumb')
					:css('width', (args['width' .. k] or width) .. 'px')
					:css('text-align', args['itemalign'])
					:wikitext('<div style="margin:0px auto">' .. args[k] .. '</div>')
			if args[tonumber(k)+1] then
				itemdiv
					:tag('div')
					:addClass('gallerytext')
					:css('text-align', args['captionalign'])
					:wikitext('<p>' .. args[tonumber(k)+1] .. '</p>')
			end
			items[i] = tostring(item) .. ' '
		end
	end
	-- remove blanks
	table.sort(itemnums)
	local sorteditems = {}
	for k = 1, #itemnums do
		sorteditems[k] = items[itemnums[k]]
	end

	local root = mw.html.create('ul')
		:addClass('gallery mw-gallery-nolines gallery-items')
		:addClass(args.class)
		:cssText(args.style)
		:wikitext(table.concat(sorteditems))
	
	return frame:extensionTag {name = 'templatestyles', args = {src = 'Gallery items/styles.css'}} .. frame:extensionTag{ name = 'gallery', args = {mode = 'nolines'}} .. tostring(root)
end

return p