Module:Table

Module documentation[view] [edit] [history] [purge]

Overview

Extends the functionality of tables.

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

-- Author: [#OMEGA] - K2
xtable = {}

function xtable:new(tbl)
    tbl = tbl or {}
    setmetatable(tbl, self)
    self.__index = self
    return tbl
end

function xtable:remove(value)
    local i = self:index(value)
    if i > 0 then
        table.remove(self, i)
    end
end

function xtable:removeT(value)
    for _, v in ipairs(value) do
        xtable:remove(v)
    end
end

function xtable:size()
    -- for cases where # operator doesnt want to work
    local i = 0
    for _, _ in ipairs(self) do
        i = i + 1
    end
    return i
end
    
function xtable:index(value)
    -- no idea why lua starts at one... 
    local i = 1
    for _, v in ipairs(self) do
        if v == value then
            return i
        end
        i = i + 1
    end
    return 0
end

function xtable:contains(value)
    for _, v in ipairs(self) do
        if v == value then return true end
    end
    return false
end

function xtable:containsT(value)
    for _, v in ipairs(value) do
        if not xtable:contains(v) then return false end
    end
    return true
end

function xtable:keys()
    x = {}
    for k, _ in ipairs(self) do
        table.insert(x, k)
    end
    return xtable:new(x)
end

function xtable:values()
    x = {}
    for _, v in ipairs(self) do
        table.insert(x, v)
    end
    return xtable:new(x)
end

return xtable