This is actually getting easier with the new API:
loop = do
records <- draw10
let (avgTemp, avgHumidity) = L.fold averages records
liftIO $ printf "-- Report: average temperature is %d°C,
average humidity is %d%% \n" avgTemp avgHumidity
eof <- PP.isEndOfInput
unless eof loop
Cheers,
On Wednesday, December 18, 2013 9:29:32 PM UTC+1, Pierre R wrote:
>
> Hi,
>
> I am having a go with the new parsing API (just for learning purposes).
> How should I convert the following code ?
>
> (avgTemp, avgHum) <- fold' averages (input >-> P.take 10)
>
>
> https://github.com/PierreR/pipes-zmq3/blob/master/sub.hs#L66
>
> Do I replace (input >-> P.take 10) with zoom (splitAt 10) drawAll ? Then
> how do I use the parser with Foldl ?
>
> As a note, it seems to me that I don't need to check for stream
> termination with zeromq because I always get one message or nothing at all.
> The haskell zeromq lib takes care of dealing with error conditions already.
> Is that right ?
>
> Thanks for your help,
>
> Cheers
>
>
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