| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Options.Applicative.Builder.Extra
Description
Extra functions for optparse-applicative.
- boolFlags :: Bool -> String -> String -> Mod FlagFields Bool -> Parser Bool
- boolFlagsNoDefault :: String -> String -> Mod FlagFields Bool -> Parser Bool
- maybeBoolFlags :: String -> String -> Mod FlagFields (Maybe Bool) -> Parser (Maybe Bool)
- firstBoolFlags :: String -> String -> Mod FlagFields (Maybe Bool) -> Parser (First Bool)
- enableDisableFlags :: a -> a -> a -> String -> String -> Mod FlagFields a -> Parser a
- enableDisableFlagsNoDefault :: a -> a -> String -> String -> Mod FlagFields a -> Parser a
- extraHelpOption :: Bool -> String -> String -> String -> Parser (a -> a)
- execExtraHelp :: [String] -> String -> Parser a -> String -> IO ()
- textOption :: Mod OptionFields Text -> Parser Text
- textArgument :: Mod ArgumentFields Text -> Parser Text
- optionalFirst :: Alternative f => f a -> f (First a)
- absFileOption :: Mod OptionFields (Path Abs File) -> Parser (Path Abs File)
- relFileOption :: Mod OptionFields (Path Rel File) -> Parser (Path Rel File)
- absDirOption :: Mod OptionFields (Path Abs Dir) -> Parser (Path Abs Dir)
- relDirOption :: Mod OptionFields (Path Rel Dir) -> Parser (Path Rel Dir)
- eitherReader' :: Show e => (String -> Either e a) -> ReadM a
Documentation
Arguments
| :: Bool | Default value |
| -> String | Flag name |
| -> String | Help suffix |
| -> Mod FlagFields Bool | |
| -> Parser Bool |
Enable/disable flags for a Bool.
firstBoolFlags :: String -> String -> Mod FlagFields (Maybe Bool) -> Parser (First Bool) Source
Like maybeBoolFlags, but parsing a First.
Arguments
| :: a | Default value |
| -> a | Enabled value |
| -> a | Disabled value |
| -> String | Name |
| -> String | Help suffix |
| -> Mod FlagFields a | |
| -> Parser a |
Enable/disable flags for any type.
enableDisableFlagsNoDefault Source
Arguments
| :: a | Enabled value |
| -> a | Disabled value |
| -> String | Name |
| -> String | Help suffix |
| -> Mod FlagFields a | |
| -> Parser a |
Enable/disable flags for any type, without a default (to allow chaining with <|>)
Arguments
| :: Bool | Hide from the brief description? |
| -> String | Program name, e.g. |
| -> String | Option glob expression, e.g. |
| -> String | Help option name, e.g. |
| -> Parser (a -> a) |
Show an extra help option (e.g. --docker-help shows help for all --docker* args).
To actually have that help appear, use execExtraHelp before executing the main parser.
Arguments
| :: [String] | Command line arguments |
| -> String | Extra help option name, e.g. |
| -> Parser a | Option parser for the relevant command |
| -> String | Option description |
| -> IO () |
Display extra help if extra help option passed in arguments.
Since optparse-applicative doesn't allow an arbitrary IO action for an abortOption, this
was the best way I found that doesn't require manually formatting the help.
textOption :: Mod OptionFields Text -> Parser Text Source
optionalFirst :: Alternative f => f a -> f (First a) Source
eitherReader' :: Show e => (String -> Either e a) -> ReadM a Source
Like eitherReader, but accepting any Show eLeft.