Safe Haskell	Safe-Inferred
Language	Haskell2010

CabalGild.Unstable.Type.Flag

Synopsis

data Flag
- = CRLF String
- | Help Bool
- | Input String
- | IO String
- | Mode String
- | Output String
- | Stdin String
- | Version Bool
options :: [OptDescr Flag]
crlfOption :: String
inputOption :: String
ioOption :: String
modeOption :: String
outputOption :: String
stdinOption :: String
fromArguments :: MonadThrow m => [String] -> m [Flag]
detectDuplicateOptions :: MonadThrow m => [Flag] -> m ()

Documentation

data Flag Source #

A flag, which represents a command line option. The values associated with the flags are typically not parsed. These just handle the structure of command line options.

Constructors

CRLF String
Help Bool
Input String
IO String
Mode String
Output String
Stdin String
Version Bool

Instances

Instances details

Show Flag Source #
Instance details Defined in CabalGild.Unstable.Type.Flag Methods showsPrec :: Int -> Flag -> ShowS # show :: Flag -> String # showList :: [Flag] -> ShowS #
Eq Flag Source #
Instance details Defined in CabalGild.Unstable.Type.Flag Methods (==) :: Flag -> Flag -> Bool # (/=) :: Flag -> Flag -> Bool #

options :: [OptDescr Flag] Source #

The command line options the correspond to the flags.

crlfOption :: String Source #

inputOption :: String Source #

ioOption :: String Source #

modeOption :: String Source #

outputOption :: String Source #

stdinOption :: String Source #

fromArguments :: MonadThrow m => [String] -> m [Flag] Source #

Converts a list of command line arguments into a list of flags. If there are any unexpected arguments, invalid options, or unknown options, an exception will be thrown.

detectDuplicateOptions :: MonadThrow m => [Flag] -> m () Source #