Category "clap"

Clap raw bytes arguments

I would like to use raw byte argument with clap For example --raw $(echo -n -e 'B\x10CC\x01\xff') will give me the following bytes array [66, 16, 67, 67, 1, 239

Using clap 3 derive macros, how do I specify that at least one argument of a group must be present?

I have a clap struct as follows: #[derive(Clap)] #[clap( version = "0.1.0", author = "..." )] pub struct Cli { #[clap(long)] arg_a: Option<St