`show' in ghci dialogue

[Serge D. Mechveliani]

On Sat, Jan 12, 2008 at 01:11:00PM +0000, Neil Mitchell wrote:
> Hi Serge,
> 
> I think what you are looking for is putStr:
> 
> ghci> putStr "Test\nhere"
> Test
> here


Thank you.
And my `main' function below did apply  putStr. 
I am sorry, I got confused: cannot recall in what situation its 
output was 
"[([1, 2, 3), []),\n\n([4, 5, 6), [7]),\n\n([9, 8, 0],\n\n[0, 0, 0])]"

How strange ...



> On 1/12/08, Serge D. Mechveliani <mechvel at botik.ru> wrote:
> > [..]
> > ---------------------------
> > class DShow a where dShow :: ShowOptions -> a -> String
> > ...
> > main = let listOfListPairs = [ ([1,2,3], []     ),
> >                                ([4,5,6], [7]    ),
> >                                ([9,8,0], [0,0,0])
> >                              ]                     :: [ ([Int], [Int]) ]
> >            opts = ShowOptions {verbosity      = 2,
> >                                listSepator    = ", \n\n",
> >                                fieldSeparator = ", \n"}
> >        in
> >        putStr (dShow opts listOfListPairs)
> > ---------------------------
> >
> > Then, the command  ./Main  outputs
> >
> > -----------------------
> > [([1, 2, 3], []),
> >
> > ([4, 5, 6], [7]),
> >
> > ([9, 8, 0], [0, 0, 0])]
> > -----------------------
> > [..]
> > But the command
> >
> >   > main
> >
> > in the ghci interpreter outputs something like this:
> > "[([1, 2, 3), []),\n\n([4, 5, 6), [7]),\n\n([9, 8, 0],\n\n[0, 0, 0])]"
> >
> > [..]