Hi Oleg, thank you for the answer, things are getting much clearer now.
On 20 April 2011 09:08, <o...@okmij.org> wrote: > > Paul Sujkov wrote: > > > I played a bit with the enumerator package, and I'm quite stuck with the > > question how to duplex data to two (or more) consumers > > Many packages have the combinator named enumPair (or something like > that). Here is one example > http://okmij.org/ftp/ftp/Streams.html#1enum2iter > The combinator is quite useful for logging, for dumping the contents > of the stream as it is being processed. > > > actually I need to pipeline output of one consumer to another > > (outputting text after making some internal representation - with Show > > instance - with the parseData). > > You need enumeratees, which convert one stream into another. There are > many examples of those: e.g., converting a stream of bytes into a stream > of lines, or a stream of compressed/encoded data into the plaintext > stream. You enumerator package probably has them. The Stream.html page > also describes many examples of enumeratees. > > > > -- Regards, Paul Sujkov
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