Module:Selected recent additions

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Usage

{{#invoke:Selected recent additions|main}}

Arguments come from the parent template {{Transclude selected recent additions}}; see documentation there for details.

See also

The above documentation is transcluded from Module:Selected recent additions/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (create) pages.
Subpages of this module.

local randomModule = require('Module:Random')

function cleanupArgs(argsTable)
	local cleanArgs = {}
	for key, val in pairs(argsTable) do
		if type(val) == 'string' then
			val = val:match('^%s*(.-)%s*$')
			if val ~= '' then
				cleanArgs[key] = val
			end
		else
			cleanArgs[key] = val
		end
	end
	return cleanArgs
end

function isAffirmed(val)
	if not(val) then return false end
	local affirmedWords = ' add added affirm affirmed include included on true yes y '
	return string.find(affirmedWords, ' '..string.lower(val)..' ', 1, true ) and true or false
end

function makeOutput(allItems, maxItems, more)
	local randomiseArgs = {
		['t'] = allItems,
		['limit'] = maxItems
	}
	local randomisedItems = randomModule.main('array', randomiseArgs )
	local output = table.concat(randomisedItems, '\n')
	if more then
		output = output .. more
	end
	return mw.text.trim(output)
end

function cleanForPatternMatching(wikitext)
	-- remove wikilink brackets
	local cleaned = mw.ustring.gsub(wikitext, "%[%[(.-)%]%]","%1")
	-- remove pipes that would have been in piped links
	cleaned = mw.ustring.gsub(cleaned, "%|"," ")
	-- remove external links
	cleaned = mw.ustring.gsub(cleaned, "%[.-%]"," ")
	return cleaned
end

-- Get current events for a "YYYY Month D" date. Returns a table of list items.
function getRecentAdditions(subpage, keepPatterns, skipPatterns)
	local title = mw.title.new('Wikipedia:Recent additions' .. subpage)
	local raw = title:getContent()
	local itemPattern = '%*%s?%.%.%.[%S ]*'
	local items = {}
	for item in mw.ustring.gmatch(raw, itemPattern) do
		local keep = false
		local skip = false
		local isListItem = ( string.sub(item, 0, 1) == '*' )
		if isListItem then
			local text = cleanForPatternMatching(item)
			for ii, keepPatt in pairs(keepPatterns) do
				if not keep and mw.ustring.find(text, keepPatt) then
					keep = true
				end
			end
			if #skipPatterns > 0 then
				for iii, skipPatt in pairs(skipPatterns) do
					if not skip and mw.ustring.find(text, skipPatt) then
						skip = true			
					end
				end
			end
		end
		if keep and not skip then
			local cleanItem = mw.ustring.gsub(item, "''%(.-pictured.-%)''", "")
			table.insert(items, cleanItem)
		end
	end
	return items
end

function getItems(maxMonths, patterns, skipPatterns)
	local allItems = {}
	local lang = mw.language.new('en')
	local currentYear  = tonumber(lang:formatDate('Y', 'now'))
	local currentMonth = tonumber(lang:formatDate('n', 'now'))
	local monthsAgo = 0
	while monthsAgo < maxMonths do
		local subpage
		if monthsAgo == 0 then
			subpage = ''
		else
			local year = currentYear - math.modf( (monthsAgo+12-currentMonth)/12 ) 
			local month = math.fmod(12 + currentMonth - math.fmod(monthsAgo, 12), 12)
			month = ( month ~= 0 ) and month or 12
			subpage = lang:formatDate('/Y/F', year .. '-' .. month)
		end
		local monthlyItems = getRecentAdditions(subpage, patterns, skipPatterns)
		for i, item in ipairs(monthlyItems) do
			table.insert(allItems, item)
		end
		monthsAgo = monthsAgo + 1
	end
	return allItems
end

function getPatterns(args, prefix)
	local patterns = {}
	local ii = 1
	while args[prefix and prefix..ii or ii] do
		patterns[ii] = args[prefix and prefix..ii or ii]
		ii = ii + 1
	end
	return patterns
end

local p = {}

p.main = function(frame)
	local parent = frame.getParent(frame)
	local parentArgs = parent.args
	local args = cleanupArgs(parentArgs)

	if args['not'] and not args['not1'] then
		args['not1'] = args['not']
	end
	
	local patterns = getPatterns(args)
	if #patterns < 1 then
		return error("Search pattern not set")
	end

	local skipPatterns = getPatterns(args, 'not')

	local months = tonumber(args.months) or 30

	local allItems = getItems(months, patterns, skipPatterns)
	if #allItems < 1 then
		return args.none or 'No recent additions'
	end

	local maxItems = tonumber(args.max) or 6

	local more = args.more
	if isAffirmed(args.more) then
		more = "'''[[Wikipedia:Recent additions|More recent additions...]]'''"
	end

	return makeOutput(allItems, maxItems, more)


end

return p