Another newbie question, but I can't seem to find any answers on the web...
Can someone tell me what's wrong with this?
import qualified System.Posix.Directory as PD
readdirAll :: PD.DirStream -> IO [String]
readdirAll d =
do dir <- PD.readDirStream d
if dir == ""
then return []
else rest <- readdirAll d
return (dir:rest)
Compiling with GHC 6.6.1 gives me the not-very-useful message "Parse
error in pattern", pointing to the "i" of "if". I've tried all kinds of
alternative indentations (including indenting the "else" more),
bracketings etc, but nothing helps.
Thanks
David
--
The Wellcome Trust Sanger Institute is operated by Genome Research
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