Module:Tone superscript: Difference between revisions

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Implements {{Tone superscript}}

The above documentation is transcluded from Module:Tone superscript/doc. (edit | history)
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local p = {}

function p.main(frame)
	local root = mw.html.create()
	local arg = frame:getParent().args[1]
	if not arg or arg:len() == 0 then
		root:tag('strong'):attr('class','error'):wikitext('Error: No input.')
		return tostring(root)
	end
	local x = arg:gsub("(%d)", "<sup>%1</sup>")
	x = x:gsub("(%d)</sup>%*<sup>(%d)", "%1*%2")
	x = x:gsub("<sup><sup>", "<sup>")
	x = x:gsub("</sup></sup>", "</sup>")
	root:tag('span'):wikitext(x)
	return tostring(root)
end

return p