ZexisStryfe: Created page with "-- awawa local libraryUtil = require('libraryUtil') local checkType = libraryUtil.checkType local checkTypeMulti = libraryUtil.checkTypeMulti local p = {} function p..."

2020-10-16T16:21:16Z

Created page with "-- <nowiki> awawa local libraryUtil = require('libraryUtil') local checkType = libraryUtil.checkType local checkTypeMulti = libraryUtil.checkTypeMulti local p = {} function p..."

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-- <nowiki> awawa
local libraryUtil = require('libraryUtil')
local checkType = libraryUtil.checkType
local checkTypeMulti = libraryUtil.checkTypeMulti
local p = {}

function p.all(enum, fn, clone)
checkType('Module:Enum.all', 1, enum, 'table')
checkType('Module:Enum.all', 2, fn, 'function', true)
checkType('Module:Enum.all', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
fn = fn or function(item) return item end
for _, item in ipairs(enum) do
if not fn(item) then
return false
end
end
return true
end

function p.any(enum, fn, clone)
checkType('Module:Enum.any', 1, enum, 'table')
checkType('Module:Enum.any', 2, fn, 'function', true)
checkType('Module:Enum.any', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
fn = fn or function(item) return item end
for _, item in ipairs(enum) do
if fn(item) then
return true
end
end
return false
end

function p.contains(enum, elem, clone)
checkType('Module:Enum.contains', 1, enum, 'table')
checkType('Module:Enum.contains', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum); elem = mw.clone(elem) end
return p.any(enum, function(item) return item == elem end)
end

function p.each(enum, fn, clone)
checkType('Module:Enum.each', 1, enum, 'table')
checkType('Module:Enum.each', 2, fn, 'function')
checkType('Module:Enum.each', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
for _, item in ipairs(enum) do
fn(item)
end
end

function p.filter(enum, fn, clone)
checkType('Module:Enum.filter', 1, enum, 'table')
checkType('Module:Enum.filter', 2, fn, 'function', true)
checkType('Module:Enum.filter', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
fn = fn or function(item) return item end
local r = {}
for _, item in ipairs(enum) do
if fn(item) then
table.insert(r, item)
end
end
return r
end

function p.find(enum, fn, default, clone)
checkType('Module:Enum.find', 1, enum, 'table')
checkType('Module:Enum.find', 2, fn, 'function')
checkType('Module:Enum.find', 4, clone, 'boolean', true)
if clone then enum = mw.clone(enum); default = mw.clone(default) end
for _, item in ipairs(enum) do
if fn(item) then
return item
end
end
return default
end

function p.find_index(enum, fn, default, clone)
checkType('Module:Enum.find_index', 1, enum, 'table')
checkType('Module:Enum.find_index', 2, fn, 'function')
checkType('Module:Enum.find_index', 4, clone, 'boolean', true)
if clone then enum = mw.clone(enum); default = mw.clone(default) end
for index, item in ipairs(enum) do
if fn(item) then
return index
end
end
return default
end

function p.newIncrementor(start, step)
checkType('Module:Enum.newIncrementor', 1, start, 'number', true)
checkType('Module:Enum.newIncrementor', 2, step, 'number', true)
step = step or 1
local n = (start or 1) - step
local obj = {}
return setmetatable(obj, {
__call = function() n = n + step return n end,
__tostring = function() return n end,
__index = function() return n end,
__newindex = function(self, k, v)
if k == 'step' and type(v) == 'number' then
step = v
elseif type(v) == 'number' then
n = v
end
end,
__concat = function(x, y) return tostring(x) .. tostring(y) end
})
end

function p.intersect(enum1, enum2, clone)
checkType('Module:Enum.intersect', 1, enum1, 'table')
checkType('Module:Enum.intersect', 2, enum2, 'table')
checkType('Module:Enum.intersect', 3, clone, 'boolean', true)
if clone then enum1 = mw.clone(enum1); enum2 = mw.clone(enum2) end
local enum2Elements = {}
local res = {}
p.each(enum2, function(item) enum2Elements[item] = true end)
p.each(enum1, function(item)
if enum2Elements[item] then
table.insert(res, item)
end
end)
return res
end

function p.intersects(enum1, enum2, clone)
checkType('Module:Enum.intersects', 1, enum1, 'table')
checkType('Module:Enum.intersects', 2, enum2, 'table')
checkType('Module:Enum.intersects', 3, clone, 'boolean', true)
if clone then enum1 = mw.clone(enum1); enum2 = mw.clone(enum2) end
return p.any(enum1, function(item1) return p.any(enum2, function(item2) return item1==item2 end) end)
end

function p.insert(enum1, enum2, index, clone)
checkType('Module:Enum.insert', 1, enum1, 'table')
checkType('Module:Enum.insert', 2, enum2, 'table')
checkType('Module:Enum.insert', 3, index, 'number', true)
checkType('Module:Enum.insert', 4, clone, 'boolean', true)
if clone then enum1 = mw.clone(enum1); enum2 = mw.clone(enum2) end
local len1 = #enum1
local len2 = #enum2
index = index or (len1 + 1)
local res = {}

for i = 1, (len1 + len2) do
if i < index then
res[i] = enum1[i]
elseif i < (index + len2) then
res[i] = enum2[i - index + 1]
else
res[i] = enum1[i - len2]
end
end

return res
end

function p.map(enum, fn, clone)
checkType('Module:Enum.map', 1, enum, 'table')
checkType('Module:Enum.map', 2, fn, 'function')
checkType('Module:Enum.map', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
local r = {}
for _, item in ipairs(enum) do
local temp = fn(item) -- Only use first returned item
table.insert(r, temp)
end
return r
end

function p.max_by(enum, fn, clone)
checkType('Module:Enum.max_by', 1, enum, 'table')
checkType('Module:Enum.max_by', 2, fn, 'function')
checkType('Module:Enum.max_by', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
return unpack(p.reduce(enum, function(new, old)
local y = fn(new)
return y > old[2] and {new, y} or old
end, {0, 0}))
end

function p.range(start, stop, step)
checkType('Module:Enum.range', 1, start, 'number')
checkType('Module:Enum.range', 2, stop, 'number', true)
checkType('Module:Enum.range', 3, step, 'number', true)
local array = {}
if not stop then
stop = start
start = 1
end
local j = 1
for i = start, stop, step or 1 do
array[j] = i
j = j + 1
end
return array
end

function p.reduce(enum, fn, accumulator, clone)
checkType('Module:Enum.reduce', 1, enum, 'table')
checkType('Module:Enum.reduce', 2, fn, 'function')
checkType('Module:Enum.reduce', 4, clone, 'boolean', true)
if clone then enum = mw.clone(enum); accumulator = mw.clone(accumulator) end
local acc = accumulator
for index, item in ipairs(enum) do
if index == 1 and not accumulator then
acc = item
else
acc = fn(item, acc)
end
end
return acc
end

function p.reject(enum, fn, clone)
checkType('Module:Enum.reject', 1, enum, 'table')
checkTypeMulti('Module:Enum.reject', 2, fn, {'function', 'table', 'nil'})
checkType('Module:Enum.reject', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
fn = fn or function(item) return item end
local r = {}
if type(fn) == 'function' then
for index, item in ipairs(enum) do
if not fn(item, index) then
table.insert(r, item)
end
end
else
local rejectMap = {}
for _, item in ipairs(fn) do
rejectMap[item] = true
end
for _, item in ipairs(enum) do
if not rejectMap[item] then
table.insert(r, item)
end
end
end
return r
end

function p.scan(enum, fn, accumulator, clone)
checkType('Module:Enum.scan', 1, enum, 'table')
checkType('Module:Enum.scan', 2, fn, 'function')
checkType('Module:Enum.scan', 4, clone, 'boolean', true)
if clone then enum = mw.clone(enum); accumulator = mw.clone(accumulator) end
local acc = accumulator
local r = {}
for index, item in ipairs(enum) do
if index == 1 and not accumulator then
acc = item
else
acc = fn(item, acc)
end
table.insert(r, acc)
end
return r
end

function p.slice(enum, start, finish, clone)
checkType('Module:Enum.slice', 1, enum, 'table')
checkType('Module:Enum.slice', 2, start, 'number', true)
checkType('Module:Enum.slice', 3, finish, 'number', true)
checkType('Module:Enum.slice', 4, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
start = start or 1
finish = finish or #enum
local r = {}
for index, item in ipairs(enum) do
if index >= start and index <= finish then
table.insert(r, item)
end
end
return r
end

function p.split(enum, count, clone)
checkType('Module:Enum.split', 1, enum, 'table')
checkType('Module:Enum.split', 2, count, 'number')
checkType('Module:Enum.split', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
if #enum < count then
return enum, {}
elseif count < 1 then
return {}, enum
end

local x = {}
local y = {}

for i = 1, #enum do
table.insert(
i <= count and x or y,
enum[i]
)
end
return x, y
end

function p.sum(enum, clone)
checkType('Module:Enum.sum', 1, enum, 'table')
checkType('Module:Enum.sum', 2, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
return p.reduce(enum, function(x, y) return x + y end)
end

function p.take(enum, count, clone)
checkType('Module:Enum.take', 1, enum, 'table')
checkType('Module:Enum.take', 2, count, 'number')
checkType('Module:Enum.take', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
local x, _ = p.split(enum, count)
return x
end

function p.take_every(enum, n, clone)
checkType('Module:Enum.take_every', 1, enum, 'table')
checkType('Module:Enum.take_every', 2, n, 'number')
checkType('Module:Enum.take_every', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
local r = {}
for index, item in ipairs(enum) do
if (index - 1) % n == 0 then
table.insert(r, item)
end
end
return r
end

function p.take_from(enum, index, count)
checkType('Module:Enum.take_from', 1, enum, 'table')
checkType('Module:Enum.take_from', 2, index, 'number')
checkType('Module:Enum.take_from', 3, count, 'number')
local x, _ = p.split(p.reject(enum,
function(item, idx)
return idx < index
end
), count)
return x
end

function p.unique(enum, fn, clone)
checkType('Module:Enum.unique', 1, enum, 'table')
checkType('Module:Enum.unique', 2, fn, 'function', true)
checkType('Module:Enum.unique', 3, clone, 'boolean', true)
if clone then enum = mw.clone(enum) end
fn = fn or function(item) return item end
local r = {}
local hash = {}
for _, item in ipairs(enum) do
local id = fn(item)
if not hash[id] then
table.insert(r, item)
hash[id] = true
end
end
return r
end

function p.zip(enums, clone)
checkType('Module:Enum.zip', 1, enums, 'table')
checkType('Module:Enum.zip', 2, clone, 'boolean', true)
if clone then enums = mw.clone(enums) end
local r = {}
local _, longest = p.max_by(enums, function(enum) return #enum end)
for i = 1, longest do
local q = {}
for j = 1, #enums do
table.insert(q, enums[j][i])
end
table.insert(r, q)
end
return r
end

return p
-- </nowiki>

Module:Enum - Revision history

ZexisStryfe: Created page with "-- awawa local libraryUtil = require('libraryUtil') local checkType = libraryUtil.checkType local checkTypeMulti = libraryUtil.checkTypeMulti local p = {} function p..."