Module:Tone superscript

Documentation for this module may be created at Module:Tone superscript/doc

local p = {}

function p.main(frame)
	local root = mw.html.create()
	local arg = frame:getParent().args[1] or ""
	local x = arg:gsub("(%d)", "<sup>%1</sup>"):gsub("(%d)</sup>%*<sup>(%d)", "%1*%2"):gsub("<sup><sup>([%d%*]+)</sup></sup>", "<sup>%1</sup>")
	root:tag('span'):wikitext(x)
	local tracking = ''
	if string.match(arg, "</?sup>") then tracking = '[[Category:Pages using Tone superscript with sup tags]]' end
	return tostring(root)..tracking
end

return p