Module:Freeze/same page link

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local p = {}

function p.main(frame)
	return p._main(frame:getParent().args)
end

function p._main(args)
	local page = mw.text.trim(args[1] or '')
	local pageId = mw.text.trim(args[2] or '')
	local revTimestamp = mw.text.trim(args[3] or '')
	local text = args[4] or ''

	local title = page ~= '' and mw.title.new(page) or mw.title.getCurrentTitle()
	title.fragment = ''
	
	local queryParts = {'action=history'}
	if pageId ~= '' then
		table.insert(queryParts, 'curid=' .. pageId)
	end
	if revTimestamp ~= '' then
		table.insert(queryParts, 'offset=' .. revTimestamp)
	end
	table.insert(queryParts, 'limit=2')

	local url = title:fullUrl(table.concat(queryParts, '&'))
	return string.format('<span class="plainlinks">[%s %s]</span>', url, text)
end

return p