[Haskell-beginners] IO - getContents - putStrLn

Brandon Allbery allbery.b at gmail.com
Sat Jun 16 20:24:56 CEST 2012

On Sat, Jun 16, 2012 at 2:03 PM, Robert Heumüller <mailing at heum.de> wrote:

> The program compiles and runs without any problems. But there is
> absolutely no output, when f.eg. i type "hello, world" and hit return.
> Why would that be?

At a guess, your "split" is too strict and requires the entire input in
order to do anything, so you'd need control-D on Unix or control-Z on
Windows to mark the end of the input stream.

You might prefer to use the functions from the "split" package on Hackage
(cabal install split) which are appropriately lazy.

brandon s allbery                                      allbery.b at gmail.com
wandering unix systems administrator (available)     (412) 475-9364 vm/sms
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