RgParse - A Rust Command-line Argument Parser

A very simple command line argument parser.

A Simple Example

``rust // The argument tonewis the description for the application. let mut parser = Parser::new("An example argument parsing application"); // Adds someparamparameters, which take a single value. // There is no special requirement for parameter prefixes.-/--are used here by convention. // Aliases can be applied using the builder pattern. parser.add_parameter(Parameter::param("--arg0", "Argument 0, type: u32.").alias("-a")); // Adds a flag parameter, which takes no value - it istrueif present,false` otherwise parser.add_parameter(Parameter::flag("--arg1", "Argument 1, flag").alias("-a1"));

// Parsing arguments returns an Args struct which has 3 major features. let args = parser.parse_args();

// 1. You can access positional arguments directly. for positional in &args.positional { println!("Found positional argument: {}", positional); }

// 2. The get function allows you to access parameters. if let Some(arg0) = args.get::("--arg0") { println!("Arg 0 was {}", arg0); }

// 3. The flag function allows you to check the value of flags. if args.flag("--arg2") { println!("Found Arg 2 flag!"); } ```