File: escaped-positional.rs

package info (click to toggle)
chromium 139.0.7258.154-1~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 6,129,716 kB
  • sloc: cpp: 35,100,894; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,921; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,152; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (32 lines) | stat: -rw-r--r-- 1,059 bytes parent folder | download | duplicates (50) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
use clap::{arg, command, value_parser, ArgAction};

fn main() {
    let matches = command!() // requires `cargo` feature
        .arg(arg!(eff: -f).action(ArgAction::SetTrue))
        .arg(arg!(pea: -p <PEAR>).value_parser(value_parser!(String)))
        .arg(
            // Indicates that `slop` is only accessible after `--`.
            arg!(slop: [SLOP])
                .num_args(1..)
                .last(true)
                .value_parser(value_parser!(String)),
        )
        .get_matches();

    // This is what will happen with `myprog -f -p=bob -- sloppy slop slop`...

    // -f used: true
    println!("-f used: {:?}", matches.get_flag("eff"));
    // -p's value: Some("bob")
    println!("-p's value: {:?}", matches.get_one::<String>("pea"));
    // 'slops' values: Some(["sloppy", "slop", "slop"])
    println!(
        "'slops' values: {:?}",
        matches
            .get_many::<String>("slop")
            .map(|vals| vals.collect::<Vec<_>>())
            .unwrap_or_default()
    );

    // Continued program logic goes here...
}