isAbsolute

isAbsolute :: FilePath -> Bool
filepath System.FilePath.Windows, filepath System.FilePath.Posix
> not . isRelative > isAbsolute x == not (isRelative x)
isAbsoluteURI :: String -> Bool
network Network.URI
Test if string contains a valid absolute URI (an absolute URI without a fragment identifier).
uriIsAbsolute :: URI -> Bool
network Network.URI