Banri at 01:37, 24 March 2021

2021-03-24T01:37:43Z

Banri: Created page with "-- awawa local libraryUtil = require('libraryUtil') local p = {} function p.any(enum, fn, clone) libraryUtil.checkType('Module:Enum.any', 1, enum, 'table') library..."

2020-02-17T16:53:04Z

Created page with "-- <nowiki> awawa local libraryUtil = require('libraryUtil') local p = {} function p.any(enum, fn, clone) libraryUtil.checkType('Module:Enum.any', 1, enum, 'table') library..."

New page

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

function p.any(enum, fn, clone)
libraryUtil.checkType('Module:Enum.any', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.any', 2, fn, 'function', true)
libraryUtil.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.all(enum, fn, clone)
libraryUtil.checkType('Module:Enum.all', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.all', 2, fn, 'function', true)
libraryUtil.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.each(enum, fn, clone)
libraryUtil.checkType('Module:Enum.each', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.each', 2, fn, 'function')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.filter', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.filter', 2, fn, 'function', true)
libraryUtil.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)
libraryUtil.checkType('Module:Enum.find', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.find', 2, fn, 'function')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.find_index', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.find_index', 2, fn, 'function')
libraryUtil.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.map(enum, fn, clone)
libraryUtil.checkType('Module:Enum.map', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.map', 2, fn, 'function')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.max_by', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.max_by', 2, fn, 'function')
libraryUtil.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.reduce(enum, fn, accumulator, clone)
libraryUtil.checkType('Module:Enum.reduce', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.reduce', 2, fn, 'function')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.reject', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.reject', 2, fn, 'function')
libraryUtil.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 = {}
for _, item in ipairs(enum) do
if not fn(item) then
table.insert(r, item)
end
end
return r
end

function p.scan(enum, fn, accumulator, clone)
libraryUtil.checkType('Module:Enum.scan', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.scan', 2, fn, 'function')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.slice', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.slice', 2, start, 'number', true)
libraryUtil.checkType('Module:Enum.slice', 3, finish, 'number', true)
libraryUtil.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)
libraryUtil.checkType('Module:Enum.split', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.split', 2, count, 'number')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.sum', 1, enum, 'table')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.take', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.take', 2, count, 'number')
libraryUtil.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)
libraryUtil.checkType('Module:Enum.take_every', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.take_every', 2, n, 'number')
libraryUtil.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.unique(enum, fn, clone)
libraryUtil.checkType('Module:Enum.unique', 1, enum, 'table')
libraryUtil.checkType('Module:Enum.unique', 2, fn, 'function', true)
libraryUtil.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)
libraryUtil.checkType('Module:Enum.zip', 1, enums, 'table')
libraryUtil.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

function p.intersect(enum1, enum2, clone)
libraryUtil.checkType('Module:Enum.intersect', 1, enum1, 'table')
libraryUtil.checkType('Module:Enum.intersect', 2, enum2, 'table')
libraryUtil.checkType('Module:Enum.intersect', 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.contains(enum, elem, clone)
libraryUtil.checkType('Module:Enum.contains', 1, enum, 'table')
libraryUtil.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

return p
-- </nowiki>

Module:Enum - Revision history

Banri at 01:37, 24 March 2021

Banri: Created page with "-- awawa local libraryUtil = require('libraryUtil') local p = {} function p.any(enum, fn, clone) libraryUtil.checkType('Module:Enum.any', 1, enum, 'table') library..."