33 lines
1.0 KiB
Rust
33 lines
1.0 KiB
Rust
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use clap::{arg, command, value_parser, ArgAction};
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fn main() {
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let matches = command!() // requires `cargo` feature
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.arg(arg!(eff: -f).action(ArgAction::SetTrue))
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.arg(arg!(pea: -p <PEAR>).value_parser(value_parser!(String)))
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.arg(
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// Indicates that `slop` is only accessible after `--`.
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arg!(slop: [SLOP])
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.num_args(1..)
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.last(true)
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.value_parser(value_parser!(String)),
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)
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.get_matches();
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// This is what will happen with `myprog -f -p=bob -- sloppy slop slop`...
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// -f used: true
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println!("-f used: {:?}", matches.get_flag("eff"));
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// -p's value: Some("bob")
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println!("-p's value: {:?}", matches.get_one::<String>("pea"));
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// 'slops' values: Some(["sloppy", "slop", "slop"])
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println!(
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"'slops' values: {:?}",
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matches
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.get_many::<String>("slop")
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.map(|vals| vals.collect::<Vec<_>>())
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.unwrap_or_default()
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);
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// Continued program logic goes here...
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}
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