greeting/
greeting.rs

1extern crate argparse;
2
3use argparse::{ArgumentParser, StoreTrue, Store, Print};
4
5fn main() {
6    let mut verbose = false;
7    let mut name = "World".to_string();
8    {
9        let mut ap = ArgumentParser::new();
10        ap.set_description("Greet somebody.");
11        ap.add_option(&["-V", "--version"],
12            Print(env!("CARGO_PKG_VERSION").to_string()), "Show version");
13        ap.refer(&mut verbose)
14            .add_option(&["-v", "--verbose"], StoreTrue,
15            "Be verbose");
16        ap.refer(&mut name)
17            .add_option(&["--name"], Store,
18            "Name for the greeting");
19        ap.parse_args_or_exit();
20    }
21
22    if verbose {
23        println!("name is {}", name);
24    }
25    println!("Hello {}!", name);
26}
greeting/greeting.rs

greeting/
greeting.rs
