 | darcs-2.4.4: a distributed, interactive, smart revision control system | Contents | Index |
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Synopsis |
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Documentation |
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catchall :: IO a -> IO a -> IO a |
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ortryrunning :: IO ExitCode -> IO ExitCode -> IO ExitCode |
Given two shell commands as arguments, execute the former. The
latter is then executed if the former failed because the executable
wasn't found (code 127), wasn't executable (code 126) or some other
exception occurred. Other failures (such as the user holding ^C)
do not cause the second command to be tried.
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nubsort :: Ord a => [a] -> [a] |
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breakCommand :: String -> (String, [String]) |
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clarifyErrors :: IO a -> String -> IO a |
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prettyException :: Exception -> String |
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prettyError :: IOError -> String |
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putStrLnError :: String -> IO () |
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putDocLnError :: Doc -> IO () |
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withCurrentDirectory :: FilePathLike p => p -> IO a -> IO a |
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withUMask :: String -> IO a -> IO a |
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askUser :: String -> IO String |
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stripCr :: String -> String |
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showHexLen :: Integral a => Int -> a -> String |
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add_to_error_loc :: Exception -> String -> Exception |
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maybeGetEnv :: String -> IO (Maybe String) |
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firstNotBlank :: [String] -> Maybe String |
Returns Just l where l is first non-blank string in input array; Nothing if no non-blank entries
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firstJustM :: Monad m => [m (Maybe a)] -> m (Maybe a) |
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.
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firstJustIO :: [IO (Maybe a)] -> IO (Maybe a) |
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.
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isUnsupportedOperationError :: IOError -> Bool |
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isHardwareFaultError :: IOError -> Bool |
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get_viewer :: IO String |
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edit_file :: FilePathLike p => p -> IO ExitCode |
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run_editor :: FilePath -> IO ExitCode |
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promptYorn :: [Char] -> IO Char |
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promptCharFancy :: String -> [Char] -> Maybe Char -> [Char] -> IO Char |
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environmentHelpEditor :: ([String], [String]) |
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environmentHelpPager :: ([String], [String]) |
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formatPath :: String -> String |
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Tree filtering.
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filterFilePaths :: [FilePath] -> AnchoredPath -> t -> Bool |
Same as filterPath, but for ordinary FilePaths (as opposed to
AnchoredPath).
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filterPaths :: [AnchoredPath] -> AnchoredPath -> t -> Bool |
Construct a filter from a list of AnchoredPaths, that will accept any path
that is either a parent or a child of any of the listed paths, and discard
everything else.
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Produced by Haddock version 2.6.0 |