[Haskell-beginners] Help with enumerator pipeline

[Michael Snoyman]

Actually, you can use fromValue[1] to get a Builder.

[1] http://hackage.haskell.org/packages/archive/aeson/0.3.2.11/doc/html/Data-Aeson-Encode.html#v:fromValue

On Thu, Sep 1, 2011 at 6:33 PM, Michael Xavier <nemesisdesign at gmail.com> wrote:
> I've been meaning to take a look at blaze-builder anyways, but there is a
> specific reason to use lazy ByteStrings. I'm using the Aeson library for
> parsing/encoding JSON data. The encode function in that library chose lazy
> ByteStrings as the output format. While performance on this project is a
> factor, I'm reimplementing a project done in Ruby, so it won't be too hard
> to best it in that dimension in Haskell, regardless of the output format ;)
>
> On Thu, Sep 1, 2011 at 7:27 AM, Ertugrul Soeylemez <es at ertes.de> wrote:
>>
>> Michael Xavier <nemesisdesign at gmail.com> wrote:
>>
>> > I've just recently started learning how to use the enumerator
>> > library. I'm designing a utility that parses a file where each line is
>> > a JSON object.  I've designed it to look like:
>> >
>> > source enumerator (enumHandle pretty much) ->
>> > chunk by lines (enumeratee) ->
>> > parse a line into an Object (enumeratee) ->
>> > filter objects based on a criteria (enumeratee) ->
>> > limit some keys from each object (enumeratee) ->
>> > encode the object into a lazy bytestring (enumeratee) ->
>> > output the file to stdout (iteratee)
>>
>> If there is no specific reason to use lazy ByteStrings, I would suggest
>> that you use a concept complementary to iteratees, the blaze-builder
>> library for efficient stream output.
>>
>>
>> Greets,
>> Ertugrul
>>
>>
>> --
>> nightmare = unsafePerformIO (getWrongWife >>= sex)
>> http://ertes.de/
>>
>>
>>
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>
>
>
> --
> Michael Xavier
> http://www.michaelxavier.net
> LinkedIn
>
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