[Haskell-cafe] Function application like a Unix pipe

[Albert Lai]

I offer a simpler, more direct, and pre-existing correspondence
between a functional programming construct and unix pipes:

  http://www.vex.net/~trebla/weblog/pointfree.html

"Scherrer, Chad" <Chad.Scherrer at pnl.gov> writes:

> I'm still trying to settle on a "feel" for good programming style in
> Haskell. One thing I've been making some use of lately is
> 
> (\|) = flip ($)
> infixl 0 \|
> 
> Then expressions like
> 
> f4 $ f3 $ f2 $ f1 $ x
> 
> become
> 
> x  \|
> f1 \|
> f2 \|
> f3 \|
> f4
> 
> I've seen something like this on haWiki using (#), but I prefer this
> notation because it looks like a Unix pipe, which is exactly how it's
> used. 

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