Anonymous

Changes

From Polyphasic Sleep Wiki
m
Changed protection level for "Module:TableTools": High-risk Lua module: bumping protection level due to high usage, plus the stability of the module. See https://en.wikipedia.org/w/index.php?title=Wikipedia:Requests_for_page_protection&oldid=983044034#Module:TableTools ([Edit=Require administrator access] (indefinite) [Move=Require administrator access] (indefinite))
Line 30: Line 30:  
--]]
 
--]]
 
function p.isPositiveInteger(v)
 
function p.isPositiveInteger(v)
if type(v) == 'number' and v >= 1 and floor(v) == v and v < infinity then
+
return type(v) == 'number' and v >= 1 and floor(v) == v and v < infinity
return true
  −
else
  −
return false
  −
end
   
end
 
end
   Line 48: Line 44:  
--]]
 
--]]
 
function p.isNan(v)
 
function p.isNan(v)
if type(v) == 'number' and tostring(v) == '-nan' then
+
return type(v) == 'number' and tostring(v) == '-nan'
return true
  −
else
  −
return false
  −
end
   
end
 
end
   Line 137: Line 129:  
local function cleanPattern(s)
 
local function cleanPattern(s)
 
-- Cleans a pattern so that the magic characters ()%.[]*+-?^$ are interpreted literally.
 
-- Cleans a pattern so that the magic characters ()%.[]*+-?^$ are interpreted literally.
s = s:gsub('([%(%)%%%.%[%]%*%+%-%?%^%$])', '%%%1')
+
return s:gsub('([%(%)%%%.%[%]%*%+%-%?%^%$])', '%%%1')
return s
   
end
 
end
   Line 422: Line 413:     
--[[
 
--[[
-- This returns the length of a table, or the first integer key n counting from
+
-- Finds the length of an array, or of a quasi-array with keys such
-- 1 such that t[n + 1] is nil. It is similar to the operator #, but may return
+
-- as "data1", "data2", etc., using an exponential search algorithm.  
 +
-- It is similar to the operator #, but may return
 
-- a different value when there are gaps in the array portion of the table.
 
-- a different value when there are gaps in the array portion of the table.
 
-- Intended to be used on data loaded with mw.loadData. For other tables, use #.
 
-- Intended to be used on data loaded with mw.loadData. For other tables, use #.
Line 430: Line 422:  
-- frame.args.
 
-- frame.args.
 
--]]
 
--]]
function p.length(t)
+
 
local i = 1
+
function p.length(t, prefix)
while t[i] ~= nil do
+
-- requiring module inline so that [[Module:Exponential search]]
i = i + 1
+
-- which is only needed by this one function
end
+
-- doesn't get millions of transclusions
return i - 1
+
local expSearch = require("Module:Exponential search")
 +
checkType('length', 1, t, 'table')
 +
checkType('length', 2, prefix, 'string', true)
 +
return expSearch(function(i)
 +
local key
 +
if prefix then
 +
key = prefix .. tostring(i)
 +
else
 +
key = i
 +
end
 +
return t[key] ~= nil
 +
end) or 0
 
end
 
end
   
function p.inArray(arr, valueToFind)
 
function p.inArray(arr, valueToFind)
 
checkType("inArray", 1, arr, "table")
 
checkType("inArray", 1, arr, "table")