Modul:Archívum nav

Archívum nav[mi ez?] • [dokumentáció: mutat, ] • [tesztek: létrehozás]

require('strict')
local p = {}
local getArgs = require('Modul:Arguments').getArgs

function p.main(frame)
	local args = getArgs(frame)
	local title = args[1] or tostring(mw.title.getCurrentTitle())
	local prefix, n = title:match('(.-[Aa]rchív.-)(%d+)$')
	if not n then
		return nil
	end
	local pattern = '%0' .. n:len() .. 'd'
	n = tonumber(n)
	local m = math.max(n + 6, 12)
	local prevTarget = prefix .. pattern:format(n - 1)
	local nextTarget = prefix .. pattern:format(n + 1)
	if (n == 10 or n == 100) and not mw.title.new(prefix .. pattern:format(n - 1)).exists then
		prevTarget = prefix .. (n - 1)
	end
	local i = n + 1
	title = mw.title.new(prefix .. pattern:format(i))
	while i < m and title.exists do
		n = i
		i = i + 1
		title = mw.title.new(prefix .. pattern:format(i))
	end
	m = math.max(0, n - 11)
	local pages = ''
	while n > m do
		if n == 9 or n == 99 then
			title = mw.title.new(prefix .. pattern:format(n))
			if not title.exists then
				pattern = '%d'
			end
		end
		pages = '[[' .. prefix .. pattern:format(n) .. '|' .. n .. ']] ' .. pages
		n = n - 1
	end
	return ([=[<hr><div style="display:flex">
		<div style="width:14ch">[[%s|« előző]]</div>
		<div style="width:100%%; text-align:center">%s</div>
		<div style="width:14ch; text-align:right">[[%s|következő »]]</div>
		</div>]=]):format(prevTarget, pages, nextTarget)
end

return p