#[macro_export]
macro_rules! special_flag {
    ($args:expr, $flag:expr) => {{
        let flag = $flag;
        let found = $args.iter().any(|arg| arg == flag);
        $args.retain(|arg| arg != flag);
        log::trace!("special_flag: flag='{}', found={}", flag, found);
        found
    }};
}

#[macro_export]
macro_rules! special_argument {
    ($args:expr, $flag:expr) => {{
        let flag = $flag;
        let mut value: Option<String> = None;
        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);
                }
                break;
            }
            i += 1;
        }
        log::trace!("special_argument: flag='{}', value={:?}", flag, value);
        value
    }};
}