Utils

Documentation

showOct :: Integral a => a -> ShowS

showHex :: Integral a => a -> ShowS

mapFromMb :: b -> (a -> b) -> Maybe a -> b

mapMb :: (a -> b) -> Maybe a -> Maybe b

mapMbM :: Monad m => (a -> m b) -> Maybe a -> m (Maybe b)

concMaybe :: Maybe a -> Maybe a -> Maybe a

toMaybe :: (a -> Bool) -> a -> Maybe a

split :: Eq a => a -> [a] -> [[a]]

splitLast :: Eq a => [a] -> [a] -> ([a], [a])

splitLastBy :: ([a] -> Bool) -> ([a] -> [a]) -> [a] -> ([a], [a])

prefix :: Eq a => [a] -> [a] -> Maybe [a]

traceIf :: Bool -> String -> a -> a

elemBy :: (a -> Bool) -> [a] -> Bool

mapUnzip :: (a -> (b, c)) -> [a] -> ([b], [c])

diff :: Num a => [a] -> [a]

deEscapeString :: String -> String

(#) :: a -> (a -> b) -> b

dropSuffix :: String -> String

trace :: String -> a -> a

When called, trace outputs the string in its first argument, before returning the second argument as its result. The trace function is not referentially transparent, and should only be used for debugging, or for monitoring execution. Some implementations of trace may decorate the string that's output to indicate that you're tracing. The function is implemented on top of putTraceMsg.

tryOpen :: Bool -> [FilePath] -> [String] -> FilePath -> IO (Maybe FilePath)

basename :: String -> String

splitdir :: String -> (String, String)

prefixDir :: String -> String -> String

hdirect_root :: String

bailIf :: Bool -> a -> a -> a

decons :: [a] -> ([a], a)

safe_init :: [a] -> [a]

snoc :: [a] -> a -> [a]

mapAccumLM :: Monad m => (acc -> x -> m (acc, y)) -> acc -> [x] -> m (acc, [y])

notNull :: [a] -> Bool