[Haskell-beginners] Re: monad nomad gonad gomad

[Michael Mossey]

prad wrote:
> On Sun, 15 Aug 2010 21:11:52 +0200
> however, i also have:
> 
> ========
> subs (l:ls)
>     | ls==[]    = l : []
>     | otherwise = 
>         case l of
>             "```"   -> do
>                 let (code:z)   = ls
>                     str        = gt code    -- works
>                 --str <- readFile "B"       -- doesn't work
>                 subs (str:z)
>             _       -> l : subs ls
> 
> 
> gt s =
>    case s of
>         "B"    -> "BBBB"
>         "C"    -> "CCCC"
> ========

Can I make a general suggestion? It looks to me like you need to work 
through a book like "Real World Haskell" sequentially from the beginning. 
It looks like you are trying to do complex things before you've mastered 
simple things.

Mike