getOpt -package:cmdargs

getOpt :: ArgOrder a -> [OptDescr a] -> [String] -> ([a], [String], [String])
base System.Console.GetOpt
Process the command-line, and return the list of values that matched (and those that didn't). The arguments are:
  • The order requirements (see ArgOrder)
  • The option descriptions (see OptDescr)
  • The actual command line arguments (presumably got from getArgs).
getOpt returns a triple consisting of the option arguments, a list of non-options, and a list of error messages.
getOpt :: [String] -> IO (Maybe String)
hledger-lib Hledger.Utils.IO
Given one or more long or short option names, read the rightmost value of this option from the command line arguments. If the value is missing raise an error. Concatenated short flags (-a -b written as -ab) are not supported.
getOpt :: Opt tp a => OptionSetting tp -> IO a
what4 What4.Config
Get the current value of an option. Throw an exception if the option is not currently set.
getopt :: ProcessType r => r
shell-conduit Data.Conduit.Shell Data.Conduit.Shell.PATH
module System.Console.GetOpt
base
This module provides facilities for parsing the command-line options in a standalone program. It is essentially a Haskell port of the GNU getopt library.
module System.Console.GetOpt
rerebase
module Shell.Utility.GetOpt
shell-utility
module Data.Extensible.GetOpt
extensible
A wrapper for GetOpt. See also: GetOpt and extensible records - School of Haskell
module Rebase.System.Console.GetOpt
rebase
getOpt' :: ArgOrder a -> [OptDescr a] -> [String] -> ([a], [String], [String], [String])
base System.Console.GetOpt
This is almost the same as getOpt, but returns a quadruple consisting of the option arguments, a list of non-options, a list of unrecognized options, and a list of error messages.
getOpts :: DynFlags -> (DynFlags -> [a]) -> [a]
ghc GHC.Driver.Session
Retrieve the options corresponding to a particular opt_* field in the correct order
getOptions :: ParserOpts -> StringBuffer -> FilePath -> (Messages PsMessage, [Located String])
ghc GHC.Parser.Header
Parse OPTIONS and LANGUAGE pragmas of the source file. Throws a SourceError if flag parsing fails (including unsupported flags.)
getOptionsFromFile :: ParserOpts -> FilePath -> IO (Messages PsMessage, [Located String])
ghc GHC.Parser.Header
Parse OPTIONS and LANGUAGE pragmas of the source file. Throws a SourceError if flag parsing fails (including unsupported flags.)
getOptionsFromJsFile :: FilePath -> IO JSOptions
ghc GHC.StgToJS.Object
Parse option pragma in JS file
getOption :: forall s (m :: Type -> Type) t b . (HasReaderOptions st, Stream s m t) => (ReaderOptions -> b) -> ParsecT s st m b
pandoc Text.Pandoc.Parsing
getOptionEntryArg :: MonadIO m => OptionEntry -> m OptionArg
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “arg” field. When overloading is enabled, this is equivalent to 
get optionEntry #arg
getOptionEntryArgData :: MonadIO m => OptionEntry -> m (Ptr ())
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “arg_data” field. When overloading is enabled, this is equivalent to 
get optionEntry #argData
getOptionEntryArgDescription :: MonadIO m => OptionEntry -> m (Maybe Text)
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “arg_description” field. When overloading is enabled, this is equivalent to 
get optionEntry #argDescription
getOptionEntryDescription :: MonadIO m => OptionEntry -> m (Maybe Text)
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “description” field. When overloading is enabled, this is equivalent to 
get optionEntry #description
getOptionEntryFlags :: MonadIO m => OptionEntry -> m Int32
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “flags” field. When overloading is enabled, this is equivalent to 
get optionEntry #flags
getOptionEntryLongName :: MonadIO m => OptionEntry -> m (Maybe Text)
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “long_name” field. When overloading is enabled, this is equivalent to 
get optionEntry #longName
getOptionEntryShortName :: MonadIO m => OptionEntry -> m Int8
gi-glib GI.GLib.Structs.OptionEntry
Get the value of the “short_name” field. When overloading is enabled, this is equivalent to 
get optionEntry #shortName
getOptic :: Profunctor p => Optic k is s t a b -> Optic_ k p i (Curry is i) s t a b
optics-core Optics.Internal.Optic
Strip the newtype wrapper off.
getOption' :: Option' a -> Maybe a
Cabal-syntax Distribution.Compat.Semigroup
getOptimum :: Optimum o a -> o
algebraic-graphs Algebra.Graph.Label