vendor/clap/examples/tutorial_derive/04_02_parse.rs

   1 use clap::Parser;
   2
   3 #[derive(Parser)]
   4 #[clap(author, version, about, long_about = None)]
   5 struct Cli {
   6     /// Network port to use
   7     #[clap(parse(try_from_str))]
   8     port: usize,
   9 }
  10
  11 fn main() {
  12     let cli = Cli::parse();
  13
  14     println!("PORT = {}", cli.port);
  15 }