mirror of
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
659 B
Rust
18 lines
659 B
Rust
fn main() {
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let cmd = clap::Command::new("cargo")
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.bin_name("cargo")
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.subcommand_required(true)
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.subcommand(
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clap::command!("example").arg(
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clap::arg!(--"manifest-path" <PATH>)
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.value_parser(clap::value_parser!(std::path::PathBuf)),
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),
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);
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let matches = cmd.get_matches();
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let matches = match matches.subcommand() {
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Some(("example", matches)) => matches,
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_ => unreachable!("clap should ensure we don't get here"),
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};
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let manifest_path = matches.get_one::<std::path::PathBuf>("manifest-path");
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println!("{:?}", manifest_path);
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}
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