[Haskell-cafe] [newbie] How to test this function?
br1 at internet.com.uy
Thu Sep 21 00:28:23 EDT 2006
I've written a function that looks similar to this one
getList = find 5 where
find 0 = return 
find n = do
ch <- getChar
if ch `elem` ['a'..'e'] then do
tl <- find (n-1)
return (ch : tl) else
First, how do I fix the identation of the if then else?
Second, I want to test this function, without hitting the filesystem. In
C++ I would use a istringstream. I couldn't find a function that returns
a Handle from a String. The closer thing that may work that I could find
was making a pipe and convertind the file descriptor. Can I simplify that
function to take it out of the IO monad? How? I thought about
getContents, but that eats all input.
Thanks in advance,
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