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

[Adam Bergmark]

For aeson, use the Parser/attoparsec module
https://hackage.haskell.org/package/aeson-0.11.2.0/docs/Data-Aeson-Parser.html

On Sun, May 29, 2016 at 8:48 PM, Nikita Volkov <nukasu.kanaka at gmail.com>
wrote:

> I know of at least two packages providing the incremental JSON parsing
> functionality:
> http://hackage.haskell.org/package/json-stream
> http://hackage.haskell.org/package/json-incremental-decoder
>
> 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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