How to search for a string sequence in a file a rewrite it???

[Alexandre Weffort Thenorio]

OK Guys. First I would like to say thanks for all the help given before. As
I said I am still learning Haskell. My problem is the following:

I have a text file and somewhere in the file there is string (Let's say
aaaa). So I need to find this exact string and overwrite with another string
(Lets say bbbb).

I have thought a bit and couldn't find any solution, and I believe it is a
piece of cake for some of you. Is there a method already implemented in
haskell to do that??
Anyway thanks in advance.

Best Regards

NooK

----- Original Message -----
From: "Arthur Baars" <arthurb@cs.uu.nl>
To: <haskell@haskell.org>
Cc: "Norman Ramsey" <nr@eecs.harvard.edu>
Sent: Wednesday, March 12, 2003 1:06 AM
Subject: Re: clueless GHCI user wishes to load QuickCheck


> QuickCheck is in de "util" package. You can load a package with the
> -package flag:
>
> $ ghci -package util
> Prelude> :browse QuickCheck
> class Arbitrary a where {
>      arbitrary :: Gen a; coarbitrary :: forall b. a -> Gen b -> Gen b; }
> arbitrary :: forall a. (Arbitrary a) => Gen a
> ...
> Prelude>:module QuickCheck
>
> Prelude QuickCheck> :info trivial
> -- trivial is a variable
> trivial :: forall a. (Testable a) => Bool -> a -> Property
>
> Hope this helps.
>
> Cheers,
>
> Arthur
>
> On Tuesday, March 11, 2003, at 07:02 PM, Norman Ramsey wrote:
>
> > Can anyone help me figure out how to load QuickCheck into GHCI?
> > QuickCheck is included in my Debian package, but my attempts
> > at loading it are bootless:
> >
> > Prelude> :load QuickCheck
> > can't find module `QuickCheck'
> > Prelude> :load util/QuickCheck
> > can't find module `util/QuickCheck'
> > Prelude> :info
> > syntax: `:i <thing-you-want-info-about>'
> > Prelude> :load util/QuickCheck.hi
> > can't find module `util/QuickCheck.hi'
> > Prelude> :load /usr/lib/ghc-5.02.2/imports/util/QuickCheck.hi
> > can't find module `/usr/lib/ghc-5.02.2/imports/util/QuickCheck.hi'
> > Prelude> :load /usr/lib/ghc-5.02.2/imports/util/QuickCheck
> > can't find module `/usr/lib/ghc-5.02.2/imports/util/QuickCheck'
> > Prelude>
> >
> > Any advice, anyone?
> >
> >
> > Norman
> > _______________________________________________
> > Haskell mailing list
> > Haskell@haskell.org
> > http://www.haskell.org/mailman/listinfo/haskell
> >
>
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