Crate easy_args

Utility for simple and declarative style command line argument parsing.

easy-args is meant to be used to set up simple command-line argumenst for your applications and give them back in an easy to process way.

Getting Started

// First you must define an [`ArgSpec`] which will determine what the
// command-line arguments are for your program and will be used by the parser to
// do some simple checks.

// You make an [`ArgSpec`] with the builder pattern.

use easy_args::spec::ArgSpec;

let spec = ArgSpec::build()
    .boolean("windowed")
    .string("mode")
    .done()
    .unwrap();

// Second you call [`ArgSpecs`]'s [`parse()`] method to retrieve the command-line
// arguments in a processed form.

let args = spec.parse().unwrap();
if args.boolean("windowed") == Some(&true) {
    // Put application into windowed mode
}

And that’s it! The arguments have been parsed and processed and can be accessed via [Args]’s getter methods.

[ArgSpec] also has a [parse()] method so you don’t have to make a throwaway variable.

use easy_args::spec::ArgSpec;

let args = ArgSpec::build()
    .boolean("windowed")
    .string("mode")
    .parse()
    .unwrap();

Modules

args
errors
spec