interact :: (String -> String) -> IO () is a very handy function for
ghc -e, e.g.
ghc -e 'interact $ lines . map (show . (*2) . read) . unlines'
will multiply the number on every line by 2. (interact takes a
function which maps from entire input to entire output)
On 05/11/2007, Graham Fawcett <[
On Nov 5, 2007 2:41 PM, Graham Fawcett <[EMAIL PROTECTED]> wrote:
> On Nov 5, 2007 1:46 PM, Maurício <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > Is there a way to run 'ghc -e' taking input
> > from standard input? I would like to use it
> > in a pipe.
>
> It seems to me that you can use getContent
On Nov 5, 2007 1:46 PM, Maurício <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Is there a way to run 'ghc -e' taking input
> from standard input? I would like to use it
> in a pipe.
It seems to me that you can use getContents, et. al., as you would
from any other Haskell program:
$ echo hello there mauri
On Nov 5, 2007 1:46 PM, Maurício <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Is there a way to run 'ghc -e' taking input
> from standard input? I would like to use it
> in a pipe.
>
xargs ought to do the trick nicely.
-Brent
___
Haskell-Cafe mailing list
Has
Hi,
Is there a way to run 'ghc -e' taking input
from standard input? I would like to use it
in a pipe.
Thanks,
Maurício
___
Haskell-Cafe mailing list
Haskell-Cafe@haskell.org
http://www.haskell.org/mailman/listinfo/haskell-cafe
