ex1/
main.rs

1// -- main.rs --
2
3use getopt_long::*;
4
5// --
6
7fn main() -> OptResult<()> {
8    let longopts = &[
9        Opt::new(None, Some('v'), HasArg::NoArgument, "show version.").unwrap(),
10        Opt::new(None, Some('h'), HasArg::NoArgument, "help information.").unwrap(),
11        Opt::new(None, Some('a'), HasArg::RequiredArgument, "add record to table.").unwrap(),
12        Opt::new(None, Some('r'), HasArg::OptionalArgument, "remove record from table.").unwrap(),
13        Opt::new(None, Some('m'), HasArg::NoArgument, "modify the record in table.").unwrap(),
14        Opt::new(None, Some('q'), HasArg::NoArgument, "query the table.").unwrap(),
15    ];
16
17    usage("ex1", "this is ex1 example.", env!("CARGO_PKG_VERSION"), longopts);
18    let p = getopt_long(longopts)?;
19    println!("{}", p);
20    Ok(())
21}
ex1/main.rs

ex1/
main.rs
