Safe Haskell	None
Language	Haskell2010

Futhark.CodeGen.Backends.GenericPython.Options

Description

This module defines a generator for getopt based command line argument parsing. Each option is associated with arbitrary Python code that will perform side effects, usually by setting some global variables.

Synopsis

data Option = Option {
- optionLongName :: String
- optionShortName :: Maybe Char
- optionArgument :: OptionArgument
- optionAction :: [PyStmt]
}
data OptionArgument
- = NoArgument
- | RequiredArgument
- | OptionalArgument
generateOptionParser :: [Option] -> [PyStmt]

Documentation

data Option Source #

Specification if a single command line option. The option must have a long name, and may also have a short name.

When the statement is being executed, the argument (if any) will be stored in the variable optarg.

Constructors

Option
Fields optionLongName :: String optionShortName :: Maybe Char optionArgument :: OptionArgument optionAction :: [PyStmt]

data OptionArgument Source #

Whether an option accepts an argument.

Constructors

NoArgument
RequiredArgument
OptionalArgument

generateOptionParser :: [Option] -> [PyStmt] Source #

Generate option parsing code that accepts the given command line options. Will read from sys.argv.

If option parsing fails for any reason, the entire process will terminate with error code 1.