darcs-2.1.98.2: a distributed, interactive, smart revision control system Source code Contents Index

Darcs.Utils

Synopsis

catchall :: IO a -> IO a -> IO a ortryrunning :: IO ExitCode -> IO ExitCode -> IO ExitCode nubsort :: Ord a => [a] -> [a] breakCommand :: String -> (String, [String]) clarify_errors :: IO a -> String -> IO a prettyException :: Exception -> String putStrLnError :: String -> IO () putDocLnError :: Doc -> IO () withCurrentDirectory :: FilePathLike p => p -> IO a -> IO a withUMask :: String -> IO a -> IO a askUser :: String -> IO String stripCr :: String -> String showHexLen :: Integral a => Int -> a -> String add_to_error_loc :: Exception -> String -> Exception maybeGetEnv :: String -> IO (Maybe String) firstNotBlank :: [String] -> Maybe String firstJustM :: Monad m => [m (Maybe a)] -> m (Maybe a) firstJustIO :: [IO (Maybe a)] -> IO (Maybe a) isUnsupportedOperationError :: IOError -> Bool isHardwareFaultError :: IOError -> Bool get_viewer :: IO String edit_file :: FilePathLike p => p -> IO ExitCode promptYorn :: [Char] -> IO Char promptCharFancy :: String -> [Char] -> Maybe Char -> [Char] -> IO Char without_buffering :: IO a -> IO a formatPath :: String -> String

Documentation

catchall :: IO a -> IO a -> IO a Source

ortryrunning :: IO ExitCode -> IO ExitCode -> IO ExitCode Source

nubsort :: Ord a => [a] -> [a] Source

breakCommand :: String -> (String, [String]) Source

clarify_errors :: IO a -> String -> IO a Source

prettyException :: Exception -> String Source

putStrLnError :: String -> IO () Source

putDocLnError :: Doc -> IO () Source

withCurrentDirectory :: FilePathLike p => p -> IO a -> IO a Source

withUMask :: String -> IO a -> IO a Source

askUser :: String -> IO String Source

stripCr :: String -> String Source

showHexLen :: Integral a => Int -> a -> String Source

add_to_error_loc :: Exception -> String -> Exception Source

maybeGetEnv :: String -> IO (Maybe String) Source

firstNotBlank :: [String] -> Maybe String Source

Returns Just l where l is first non-blank string in input array; Nothing if no non-blank entries

firstJustM :: Monad m => [m (Maybe a)] -> m (Maybe a) Source

The firstJustM returns the first Just entry in a list of monadic operations. This is close to `listToMaybe fmap sequence`, but the sequence operator evaluates all monadic members of the list before passing it along (i.e. sequence is strict). The firstJustM is lazy in that list member monads are only evaluated up to the point where the first Just entry is obtained.

firstJustIO :: [IO (Maybe a)] -> IO (Maybe a) Source

The firstJustIO is a slight modification to firstJustM: the entries in the list must be IO monad operations and the firstJustIO will silently turn any monad call that throws an exception into Nothing, basically causing it to be ignored.

isUnsupportedOperationError :: IOError -> Bool Source

isHardwareFaultError :: IOError -> Bool Source

get_viewer :: IO String Source

edit_file :: FilePathLike p => p -> IO ExitCode Source

promptYorn :: [Char] -> IO Char Source

promptCharFancy :: String -> [Char] -> Maybe Char -> [Char] -> IO Char Source

without_buffering :: IO a -> IO a Source

formatPath :: String -> String Source

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