Module:Gaps

local p = {}

local getArgs

function p.main(frame)
	if not getArgs then
		getArgs = require('Module:Arguments').getArgs
	end
	local args = getArgs(frame, {wrappers = 'Template:Gaps'})
	local size

	local ret_span = mw.html.create('span')
				:css('white-space','nowrap')
				
	if args.size then
		ret_span:css('font-size',args.size)
	end
	
	if args.lhs then
		ret_span:wikitext(args.lhs .. ' = ')
	end

	for _,v in ipairs(args) do
		ret_span:tag('span')
			:css('margin-left','0.2em')
			:wikitext(v)
	end

	if args.e then
		local base = args.base or '10'
		ret_span
			:tag('span')
				:css('margin-left','0.27em')
				:css('margin-right','0.27em')
				:wikitext('×')
			:done()
			:wikitext(base)
			:tag('span')
				:css('display','none')
				:wikitext('^')
			:done()
			:tag('sup')
				:wikitext(args.e:gsub('-','−'))
			:done()
	end

	if args.u then
		ret_span:wikitext('&nbsp;' .. args.u)
	end

	return ret_span
end

return p