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https://github.com/clap-rs/clap
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c9eef44213
This was ported over from the usage parser which modeled after docopt. We just never got around to implementing the rest of the syntax. However, when considering this as a standalone feature, an `arg!(--flag <value>)`, outside of other context, should be optional. This is how the help would display it. Fixes #4206
18 lines
512 B
Rust
18 lines
512 B
Rust
use clap::{arg, command, ArgAction};
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fn main() {
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let matches = command!() // requires `cargo` feature
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.next_line_help(true)
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.arg(arg!(--two <VALUE>).required(true).action(ArgAction::Set))
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.arg(arg!(--one <VALUE>).required(true).action(ArgAction::Set))
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.get_matches();
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println!(
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"two: {:?}",
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matches.get_one::<String>("two").expect("required")
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);
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println!(
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"one: {:?}",
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matches.get_one::<String>("one").expect("required")
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);
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}
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