Re: Standard libraries (was Re: Virgin tables)

[Quae Quack <quae@...>]

On 3 January 2011 11:01, Dirk Laurie <dpl@sun.ac.za> wrote:
> On Mon, Jan 03, 2011 at 02:40:06AM +0200, Quae Quack wrote:
>> So... in lack of this magical site for working on common code, I
>> submit for consideration a suitable array implementation:
>
> Your code forces all indices to be numbers.  That is not necessary.
> It should force all integer keys to lie in a block 1 to #a with
> no holes, yes, but string keys are OK. They don't confuse the table
> library functions and  are quite useful.
>
> E.g. this line from a data file of finite integer sequences:
>
> entry{3,5,17,257,65537, note="all known Fermat primes", OEIS="A000215",
>    formula=function (n) return 2^(2^(n-1))+1 end}
>
> Dirk
>
>
>

That is not an array/list.
That is much more suited for another data format; most possibly the
native lua table.
The code I posted was for a list that accepts nil values.

PS, the code is for lua 5.2 only ==> __len needs to be respected.