Make skipRepeating lazier and faster

This commit is contained in:
Joseph C. Sible 2020-04-05 21:23:34 -04:00
parent 01f4423465
commit 5084ba8d7e
1 changed files with 3 additions and 3 deletions

View File

@ -966,9 +966,9 @@ checkCatastrophicRm = CommandCheck (Basename "rm") $ \t ->
f _ = return "" f _ = return ""
stripTrailing c = reverse . dropWhile (== c) . reverse stripTrailing c = reverse . dropWhile (== c) . reverse
skipRepeating c (a:b:rest) | a == b && b == c = skipRepeating c (b:rest) skipRepeating c = foldr go []
skipRepeating c (a:r) = a:skipRepeating c r where
skipRepeating _ [] = [] go a r = a : if a == c then case r of b:rest | b == c -> rest; _ -> r else r
paths = [ paths = [
"", "/bin", "/etc", "/home", "/mnt", "/usr", "/usr/share", "/usr/local", "", "/bin", "/etc", "/home", "/mnt", "/usr", "/usr/share", "/usr/local",