Re: hpairs?

[Alexander Gladysh <agladysh@...>]

On Tue, Dec 28, 2010 at 11:53, Drake Wilson <drake@begriffli.ch> wrote:
> Quoth Dirk Laurie <dpl@sun.ac.za>, on 2010-12-28 10:25:22 +0200:

>  function hpairs(t)
>    local f, s, k0 = pairs(t)
>    local n = 1
>    while t[n+1] ~= nil do n = n+1 end
>
>    local function f2(s, k)
>      local v
>      repeat k, v = f(s, k) until not(type(k) == 'number' and 1 <= k and k <= n)

You should test k for being integer here.

This may (or may not) be interesting as well:

https://github.com/lua-nucleo/lua-nucleo/blob/master/lua-nucleo/tstr.lua#L56

>      return k, v
>    end

>    return f2, s, k0
>  end

Alexander.