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Module `std.getopt`

Processing of command line options.

The getopt module implements a getopt function, which adheres to the POSIX syntax for command line options. GNU extensions are supported in the form of long options introduced by a double dash ("--"). Support for bundling of command line options, as was the case with the more traditional single-letter approach, is provided but not enabled by default.

Credits

This module and its documentation are inspired by Perl's Getopt::Long module. The syntax of D's getopt is simpler than its Perl counterpart because getopt infers the expected parameter types from the static types of the passed-in pointers.

Functions

Name	Description
`defaultGetoptFormatter(output, text, opt)`	This function writes the passed text and `Option` into an output range in the manner described in the documentation of function `defaultGetoptPrinter`.
`defaultGetoptPrinter(text, opt)`	This function prints the passed `Option`s and text in an aligned manner on `stdout`.
`getopt(args, opts)`	Parse and remove command line options from a string array.

Classes

Name	Description
`GetOptException`	Thrown on one of the following conditions: An unrecognized command-line argument is passed, and `config.passThrough` was not present. A command-line option was not found, and `config.required` was present.

Structs

Name	Description
`GetoptResult`	The result of the `getopt` function.
`Option`	Information about an option.

Enums

Name	Description
`config`	Configuration options for `getopt`.

Global variables

Name	Type	Description
`arraySep`	`string`	The string used to separate the elements of an array or associative array (default is "" which means the elements are separated by whitespace).
`assignChar`	`dchar`	The assignment character used in options with parameters (default '=').
`endOfOptions`	`string`	The string that conventionally marks the end of all options (default '--').
`optionChar`	`dchar`	The option character (default '-').

Authors

Andrei Alexandrescu

License

Boost License 1.0.