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use clap::{arg, command, value_parser, ArgAction};
fn main() {
let matches = command!()
.arg(arg!(eff: -f).action(ArgAction::SetTrue))
.arg(
arg!(pea: -p <PEAR>)
.required(false)
.value_parser(value_parser!(String)),
)
.arg(
arg!(slop: [SLOP])
.multiple_values(true)
.last(true)
.value_parser(value_parser!(String)),
)
.get_matches();
println!(
"-f used: {:?}",
*matches.get_one::<bool>("eff").expect("defaulted by clap")
);
println!("-p's value: {:?}", matches.get_one::<String>("pea"));
println!(
"'slops' values: {:?}",
matches
.get_many::<String>("slop")
.map(|vals| vals.collect::<Vec<_>>())
.unwrap_or_default()
);
}