Module:Random/sandbox - Revision history

Lemondoge: Simplified code

2023-04-03T18:40:10Z

Simplified code

@@ Line 110: / Line 110: @@
 		startTimestamp = '@' .. tostring(currentYearStartUnix) -- @ is used to denote Unix timestamps with lang:formatDate.
 		endTimestamp = '@' .. tostring(currentYearEndUnix)
-	elseif t1 and not t2 then
+	elseif not t2 then
 		startTimestamp = '@0' -- the Unix epoch, 1 January 1970
 		endTimestamp = t1
 		startTimestamp = t1
 		endTimestamp = t2
@@ Line 211: / Line 211: @@
 	-- Returns a random item from a numbered list.
 	local list = removeBlanks(args)
 	local len = #list
 	if len >= 1 then
@@ Line 280: / Line 264: @@
 		-- This is because of the variability of os.clock (the time in seconds that the Lua script has been running for).
 		math.randomseed(mw.site.stats.edits + mw.site.stats.pages + os.time() + math.floor(os.clock() * 1000000000))
 	else
 	end
 	return l[funcName](args, listType)
 end
@@ Line 348: / Line 328: @@
 -- Process arguments for other functions.
-local otherFuncs = {'number', 'date', 'item', 'image', 'list', 'text_list'}
+local otherFuncs = {'number', 'date', 'item', 'list', 'text_list'}
 for _, funcName in ipairs(otherFuncs) do
 	p[funcName] = makeWrapper(funcName)

2022-10-15T19:16:29Z

Add "image", same as "item" but also tracks file usage

@@ Line 211: / Line 211: @@
 	-- Returns a random item from a numbered list.
 	local list = removeBlanks(args)
 	local len = #list
 	if len >= 1 then
@@ Line 332: / Line 348: @@
 -- Process arguments for other functions.
-local otherFuncs = {'number', 'date', 'item', 'list', 'text_list'}
+local otherFuncs = {'number', 'date', 'item', 'image', 'list', 'text_list'}
 for _, funcName in ipairs(otherFuncs) do
 	p[funcName] = makeWrapper(funcName)

2022-10-15T19:03:27Z

reset sandbox, previous change wasn't incorporated

@@ Line 251: / Line 251: @@
 	end
 	return makeList(listType, listArgs)
 end
@@ Line 372: / Line 332: @@
 -- Process arguments for other functions.
-local otherFuncs = {'number', 'date', 'item', 'list', 'text_list', 'link'}
+local otherFuncs = {'number', 'date', 'item', 'list', 'text_list'}
 for _, funcName in ipairs(otherFuncs) do
 	p[funcName] = makeWrapper(funcName)

2020-05-24T13:13:36Z

Add basic function to select a random link from a page, based on Module talk:Random#Random Link

@@ Line 251: / Line 251: @@
 	end
 	return makeList(listType, listArgs)
 end
@@ Line 332: / Line 372: @@
 -- Process arguments for other functions.
-local otherFuncs = {'number', 'date', 'item', 'list', 'text_list'}
+local otherFuncs = {'number', 'date', 'item', 'list', 'text_list', 'link'}
 for _, funcName in ipairs(otherFuncs) do
 	p[funcName] = makeWrapper(funcName)

2020-05-23T17:47:35Z

Sync with main module

← Previous revision		Revision as of 17:47, 23 May 2020
Line 187:		Line 187:
	-- Include an easy way to use spaces as separators.		-- Include an easy way to use spaces as separators.
	return ' '		return ' '
			elseif sep == 'newline' then
			-- Ditto for newlines
			return '\n'
	elseif type(sep) == 'string' then		elseif type(sep) == 'string' then
	-- If the separator is a recognised MediaWiki separator, use that. Otherwise use the value of sep if it is a string.		-- If the separator is a recognised MediaWiki separator, use that. Otherwise use the value of sep if it is a string.

2013-12-02T07:15:45Z

use args.same instead of a same_number function, add a config option to set a good seed for wikis with a low edit rate

2013-11-29T14:57:40Z

sync

← Previous revision		Revision as of 14:57, 29 November 2013
Line 157:		Line 157:
	-- Randomizes an array. It works by iterating through the list backwards, each time swapping the entry		-- Randomizes an array. It works by iterating through the list backwards, each time swapping the entry
	-- "i" with a random entry. Courtesy of Xinhuan at http://forums.wowace.com/showthread.php?p=279756		-- "i" with a random entry. Courtesy of Xinhuan at http://forums.wowace.com/showthread.php?p=279756
	-- If the limit parameter is set, the array is shortened to that many elements. ~~The~~ ~~lowest~~ ~~possible value~~		-- If the limit parameter is set, the array is shortened to that many elements after being randomized.
	-- is 0, and the highest possible is the length of the array.		-- The lowest possible value is 0, and the highest possible is the length of the array.
	setRandomSeed()		setRandomSeed()
	local len = #t		local len = #t

2013-11-29T14:55:00Z

reuse variable in p.item

← Previous revision		Revision as of 14:55, 29 November 2013
Line 220:		Line 220:
	setRandomSeed()		setRandomSeed()
	local list = removeBlanks(args)		local list = removeBlanks(args)
	if ~~#list~~ >= ~~1 then~~		local len = #list
			if len >= 1 then
	return list[math.random(~~#list~~)]		return list[math.random(len)]
	end		end
	end		end

2013-11-29T14:51:41Z

add limit parameter for lists

← Previous revision		Revision as of 14:51, 29 November 2013
Line 154:		Line 154:
	--------------------------------------------------------------------------------------		--------------------------------------------------------------------------------------

	function p.randomizeArray(t)		function p.randomizeArray(t, limit)
	-- Randomizes an array. It works by iterating through the list backwards, each time swapping the entry		-- Randomizes an array. It works by iterating through the list backwards, each time swapping the entry
	-- "i" with a random entry. Courtesy of Xinhuan at http://forums.wowace.com/showthread.php?p=279756		-- "i" with a random entry. Courtesy of Xinhuan at http://forums.wowace.com/showthread.php?p=279756
			-- If the limit parameter is set, the array is shortened to that many elements. The lowest possible value
			-- is 0, and the highest possible is the length of the array.
	setRandomSeed()		setRandomSeed()
	~~for~~ i = #t~~, 2, -1 do~~		local len = #t
			for i = len, 2, -1 do
	local r = math.random(i)		local r = math.random(i)
	t[i], t[r] = t[r], t[i]		t[i], t[r] = t[r], t[i]
	end		end
			if limit and limit < len then
⚫	return t
			local ret = {}
			for i, v in ipairs(t) do
			if i > limit then
			break
			end
			ret[i] = v
			end
			return ret
			else
		⚫	return t
			end
	end		end

Line 198:		Line 212:
	local function makeRandomList(args)		local function makeRandomList(args)
	local list = removeBlanks(args)		local list = removeBlanks(args)
	list = p.randomizeArray(list)		list = p.randomizeArray(list, tonumber(args.limit))
	return list		return list
	end		end

2013-11-29T14:28:14Z

sync

← Previous revision		Revision as of 14:28, 29 November 2013
Line 26:		Line 26:

	local function getBigRandom(l, u)		local function getBigRandom(l, u)
	-- Gets a random integer between l and u, and is not limited to RAND_MAX ~~(which here we assume is 2^31-1)~~.		-- Gets a random integer between l and u, and is not limited to RAND_MAX.
	local r = ~~math.random() + math.random() / 2147483648~~		local r = 0
			local n = 2^math.random(30) -- Any power of 2.
			local limit = math.ceil(53 / (math.log(n) / math.log(2)))
			for i = 1, limit do
			r = r + math.random(0, n - 1) / (n^i)
			end
	return math.floor(r * (u - l + 1)) + l		return math.floor(r * (u - l + 1)) + l
	end		end