local p = {}



-- Transclude randomly selected "Did you know?" entries

function p.main(frame)

	-- args = { 1,2,... = page names, paragraphs = list e.g. "1,3-5", files = list, more = text}

	local args = {} -- args[k] = frame.args[k] or frame:getParent().args[k] for all k in either (numeric or not)

	for k, v in pairs(frame:getParent().args) do argsk = v end

	for k, v in pairs(frame.args) do argsk = v end -- args from a Lua call have priority over parent args from template



	-- Read the input page

	local page = args1 or error("No page name given")

	local title = mw.title.new(page) or error("Missing input page " .. page)

	local text = title:getContent() or error("No content for page " .. page)



	-- Limit to the DYK section if present

	local sectionstart = mw.ustring.find(text, "\n==''Did you know?'' articles==", 1, true)

	if sectionstart then

		local sectionend = mw.ustring.find(text, "\n==", sectionstart + 1, true) or -1

		text = mw.ustring.sub(text, sectionstart, sectionend)

	end



	-- Parse the entries

	entries = {}

	for entry in mw.ustring.gmatch(text, "\n%*[.…%s]*([^\n]+)") do

		if not mw.ustring.find(entry, "article's talk page missing blurb", 1, true) then

			table.insert(entries, entry)

		end

	end



	-- Swap some random entries into the first n positions

	local n = math.min(#entries, args.count or 10) -- the number of entries to produce

	math.randomseed(os.time())

	for i = 1, n do

		j = math.random(i, #entries)

		entriesi], entriesj = "*... " .. entriesj], entriesi

	end



	-- Return the first n entries

	text = table.concat(entries, "\n", 1, n)

	return frame:preprocess(text)

end



return p