Is there some way to set table capacity in pure lua code?

["zhao xin" <esrrhs@...>]

HI, when write lua code, I want to set the table capacity before I use it, so it can reduce the rehash times.

such as the code below

the 't' array size maybe [0, 100]

local t = {}
for t in string.gmatch(str, "%w+") do
    t[#t + 1] = k
end

I know the lua_createtable can do this thing, but it will call C function.
so is the possible add some support in lua?

local t = {(100, 0)} -- give t 100 array capacity
for t in string.gmatch(str, "%w+") do
    t[#t + 1] = k
end