Hi
The root of my problem is that splitFileName leaves a trailing path separator on the end of the first element of the tuple it returns:
splitFileName "foo/bar" ==> ("foo/", "bar")
If I'm recursing up a file hierarchy towards the root directory (a common thing to do), this trailing path separator is a pain. Either I forget that it's there and infinitely loop in the same directory over and over again, due to this behaviour:
splitFileName "foo/" ==> ("foo/", "")
FWIW I think you're right here.
In various discussions I think people argued for both - in "foo/" there is no filename, since foo has been explicitly marked as a directory. I guess in this case foo is actually the leafname, or something. If you are doing your recursion pattern I think takeDirectory would be better, since it always progresses upwards. I didn't intend people to call the split* functions that much. I'm happy with whatever consensus people reach. Thanks Neil