[Haskell-beginners] [Haskell-cafe] I think someone had a complicated program to use brackets for array indexing - is it possible to use a DSL for this?

[KC]

Then a tuple might work better as input to a function to index into an array

e.g. myArray  (5)

--
--

Sent from an expensive device which will be obsolete in a few months! :D

Casey

On Jun 1, 2015 1:21 PM, "Tikhon Jelvis" <tikhon at jelv.is> wrote:

> You could make myArray a function that takes a list as an input. Of
> course, all your other array functions have to account for this too. A
> potential advantage is that this approach leaves the underlying array type
> abstract, so you could mix and match different data structure on the
> backend. (IntMap, Array, Vector… etc.)
>
> A disadvantage is that this is non-standard usage which could be confusing
> to people and there's no way I know of to statically ensure the list passed
> in always had one element. That is, myArray [1, 2] would be legal and
> result in a runtime error.
>
> I don't know of a way to do it while using a normal array type directly.
>
> On Mon, Jun 1, 2015 at 1:17 PM, KC <kc1956 at gmail.com> wrote:
>
>> I think someone had a complicated program to use brackets for array
>> indexing - is it possible to use a DSL for this?
>>
>> That is, to use myArray [5] and have a DSL convert it to standard Haskell
>> syntax
>>
>> --
>> --
>>
>> Sent from an expensive device which will be obsolete in a few months! :D
>>
>> Casey
>>
>>
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>>
>>
>
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