[Haskell-cafe] Function application like a Unix pipe
tomasz.zielonka at gmail.com
Wed Nov 23 12:08:13 EST 2005
On Wed, Nov 23, 2005 at 09:01:07AM -0800, Scherrer, Chad wrote:
> So I think of the types as being
> grep "." *.hs :: String
> wc :: String -> Int -- ok, not really, but it shows the point better.
Every unix program has a standard input, even if it doesn't use it, so
I would rather give this type to grep "." *.hs:
grep "." *.hs :: a -> String
You can run something like this
p | echo bla | grep "." *.hs | wc
even if it seems non-sensical.
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