On 23.09 15:00, Adam Langley wrote:
> Erlang's bit syntax[1] is a great for building and breaking up binary
> structures. I've knocked up something similar (although a little
> clumsy) for Haskell:
>
> http://www.imperialviolet.org/binary/bitsyntax/
> http://www.imperialviolet.org/binary/bitsyntax/BitSyntax.hs
>
> I'm sure that this isn't the best possible way to do this, but it
> suffices at this stage for many problems.
This looks very nice.
Here are some feature wishes:
BitBlock: add a way to encode length prefixed ByteStrings.
For the decoding part:
* Provide a monadic interface
* Add a test part to ReadType:
Test :: ReadType a -> (a -> Bool) -> ReadType Test
(or a -> m ()) in the monadic case.
* Add a way to limit the size of a LengthPrefixed:
e.g. [Unsigned 4, LengthPrefixed] is very unsafe, the app should
have a way to control the maximum length.
- Einar Karttunen
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