diff options
Diffstat (limited to 'Utility/Misc.hs')
| -rw-r--r-- | Utility/Misc.hs | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Utility/Misc.hs b/Utility/Misc.hs index 349b20efe..88d210de6 100644 --- a/Utility/Misc.hs +++ b/Utility/Misc.hs @@ -42,11 +42,15 @@ firstLine = takeWhile (/= '\n') {- Splits a list into segments that are delimited by items matching - a predicate. (The delimiters are not included in the segments.) -} segment :: (a -> Bool) -> [a] -> [[a]] -segment p l = map reverse $ go [] [] l +segment p = filter (not . all p) . segmentDelim p + +{- Includes the delimiters as segments of their own. -} +segmentDelim :: (a -> Bool) -> [a] -> [[a]] +segmentDelim p l = map reverse $ go [] [] l where go c r [] = reverse $ c:r go c r (i:is) - | p i = go [] (c:r) is + | p i = go [] ([i]:c:r) is | otherwise = go (i:c) r is {- Given two orderings, returns the second if the first is EQ and returns |