Expand description
§getopt(3) parser
§Command line argument parser with GNU parsing rules and double dash ‘–’ support.
getopt3::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 getopt3::hideBin;
let rc = getopt3::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
- POSIX getopt function.
- GNU libc getopt function.
Structs§
- getopt
- Parsed command line options.