[Haskell-cafe] JSON parser that returns the rest of the string that was not used

Nikita Volkov nukasu.kanaka at gmail.com
Sun May 29 18:48:18 UTC 2016

I know of at least two packages providing the incremental JSON parsing

Being the author of the latter one I recommend checking out both.

вс, 29 мая 2016 г. в 20:10, Ryan Newton <rrnewton at gmail.com>:

> As someone who spent many years putting data in S-expression format, it
> seems natural to me to write multiple S-expressions (or JSON objects) to a
> file, and expect a reader to be able to read them back one at a time.
> This seems comparatively uncommon in the JSON world.  Accordingly, it
> looks like the most popular JSON parsing lib, Aeson, doesn't directly
> provide this functionality.  Functions like decode just return a "Maybe a",
> not the left-over input, meaning that you would need to somehow split up
> your multi-object file before attempting to parse, which is annoying and
> error prone.
> It looks like maybe you can get Aeson to do what I want by dropping down
> to the attoparsec layer and messing with IResult.
> But is there a better way to do this?  Would this be a good convenience
> routine to add to aeson in a PR?  I.e. would anyone else use this?
> Thanks,
>   -Ryan
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