Crate getopt2 

getopt2 command line parser

Command line argument parser with GNU parsing rules and double dash ‘–’ support.

getopt2::new parses the command line elements and isolates arguments from options. It returns a getopt structure where you can query options and use isolated arguments.

An element that starts with ‘-’ (and is not exactly “-” or “–”) is an option element. The characters of this element (aside from the initial ‘-’) are option characters. A double dash -- can be used to indicate the end of options; any arguments following it are treated as positional arguments.

Example

use std::env::args;
use getopt2::hideBin;
let rc = getopt2::new(hideBin(args()), "ab:c");
if let Ok(g) = rc {
   // command line options parsed sucessfully
   if let Some(str) = g.options.get(&'b') {
      // handle b argument
      println!("option -b have {} argument", str);
   };
};

Reference

1. POSIX getopt function.
2. GNU libc getopt function.

Structs

getopt

Parsed command line options.

Enums

argument

Information if an option have argument

Functions

hideBin

Removes first element from the IntoIterator.

new

Parse command line arguments.

validate

Validate parsed options in strict mode.