Positional argument before "--" in usage

[mbudde]

extern crate clap;

use clap::{App};

fn main() {
    App::new("Clap test")
        .arg_from_usage("<INPUT>...")
        .get_matches();
}

$ target/debug/clap-test -h
Clap test

USAGE:
    clap-test [FLAGS] <INPUT>... [--]

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

ARGS:
    <INPUT>...    

I would expect usage to show clap-test [FLAGS] [--] <INPUT>....

[kbknapp]

Ah, thanks for filing this! It's a bug.

Actually in your example, the [--] shouldn't be there at all. The [--] only appears in the usage string when there are options which can accept multiple values, and positional arguments where aren't required. This is in order to prompt the user and potentially prevent something like

$ myprog --option val1 val2 "am I positional1 or val3?"

[kbknapp]

v2.2.2 on crates.io should have fixed this.