Module:Get short description

local p = {}

function p.main(frame)
	local title = frame.args.page
	local nomatch = frame.args.nomatch or ""
	page = mw.title.new(title)
	if not page then
		--bad title
		return '<strong class="error">No page given</strong>'
	end
	local content = page:getContent()

	if not content then
		--page does not exist
		return '<strong class="error">"'..title..'" does not exist</strong>'
	end
	content = frame:preprocess(content) -- expand content

	local sd = mw.ustring.match(content, '<div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">([^<]+)') or nomatch
	return tostring(sd)
end

return p