[Haskell-cafe] First time haskell - parse error!

[Deniz Dogan]

2010/3/9 boblettoj <boblettoj99 at msn.com>:
>
> Hi, i am getting an error when trying to compile this part of my program, its
> my first time using haskell and as lovely as it is it didn't give me very
> much to go on in the error message!
>
> <code>score :: String -> String -> String
> score [s] [] = false
> score [s] [g] =
>        if valid 4 g
>        then (s1 ++ s2 ++ s3 ++ s4) where
>                s1 = "Golds "
>                s2 = show (gold s g)
>                s3 = ", Silvers "
>                s4 = show (silver s g)
>        else "Bad Guess"</code>
>
> when i try to compile it says: test.hs 63:29: parse error on input 'where'
> (its the line beginning with 'then')
> Anybody got any ideas whats going on?
> thanks!
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You can't use `where' in the middle of an `if'. This should get rid of
the parse error:

score :: String -> String -> String
score [s] [] = false
score [s] [g] =
       if valid 4 g
       then (s1 ++ s2 ++ s3 ++ s4)
       else "Bad Guess"
    where
      s1 = "Golds "
      s2 = show (gold s g)
      s3 = ", Silvers "
      s4 = show (silver s g)

-- 
Deniz Dogan