[Haskell-cafe] Comment Syntax

[Max Rabkin]

On Fri, Jun 3, 2011 at 10:32, Guy <guytsalmaves-h at yahoo.com> wrote:
> -- followed by a symbol does not start a comment, thus for example, haddock
> declarations must begin with -- |, and not --|.
>
> What might --| mean, if not a comment? It doesn't seem possible to define it
> as an operator.

GHCi, at least, allows it.

Prelude> let (--|) = (+)
Prelude> 1 --| 2
3

--Max