Hi all,
I'm trying to write a untab function that would split a string on tabs
and return a list. Code is here.
import Data.List (break, unfoldr)
import Data.Char (String)
untab :: String -> [String]
untab s = unfoldr untab' s
untab' :: String -> Maybe (String, String)
untab' s | s == "" = Nothing
| otherwise = Just (h, ts)
where (h, t:ts) = break (== '\t') s
This code raises an exception when handling the last portion of the
string. Break returns a ("something", "") and t:ts cannot match on "".
I was wondering if there way a clean way of handling this last case
without adding tons of code. Some kind of "idiomatic expression" ;-)
Thanks,
Olivier.
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