src/macros.rs


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#[macro_export]
macro_rules! special_flag {
    ($args:expr, $($flag:expr),+) => {{
        let mut found = false;
        $(
            let flag = $flag;
            if $args.iter().any(|arg| arg == flag) {
                found = true;
            }
            $args.retain(|arg| arg != flag);
        )+
        found
    }};
}

#[macro_export]
macro_rules! special_argument {
    ($args:expr, $($flag:expr),+) => {{
        let mut value: Option<String> = None;
        let mut found = false;
        $(
            let flag = $flag;
            if !found {
                let mut i = 0;
                while i < $args.len() {
                    if $args[i] == flag {
                        if i + 1 < $args.len() {
                            value = Some($args[i + 1].clone());
                            $args.remove(i + 1);
                            $args.remove(i);
                        } else {
                            value = None;
                            $args.remove(i);
                        }
                        #[allow(unused_assignments)]
                        {
                            found = true;
                        }
                        break;
                    }
                    i += 1;
                }
            }
        )+
        value
    }};
}