模組:首页2

local z = {}

function getItems( frame )
	local page = mw.title.new( frame.args.title ):getContent()
	local matches = {}
	local black = {}
	if frame.args.black then
		for b in mw.text.gsplit( frame.args.black, '|', true ) do
			black[b] = true
		end
	end
	for m in mw.ustring.gmatch ( page, frame.args.pattern ) do
		if not black[m] then
			table.insert ( matches, m )
		end
	end
	return matches
end

function z.count( frame )
	return #getItems( frame )
end


function z.list( frame )
	local d = getItems( frame )
	math.randomseed( os.time() )
	x = math.random( 1, #d )
	if x == #d then return '[[:'..d[x]..']] － [[:'..d[x-1]..']] － [[:'..d[1]..']]'
		elseif x == 1 then return '[[:'..d[1].."]] － [[:"..d[2].."]] － [[:"..d[#d]..']]'
		else return '[[:'..d[x-1].."]] － [[:"..d[x].."]] － [[:"..d[x+1]..']]'
	end
end

return z