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#[macro_export]
macro_rules! regex {
    ($expr:expr) => {{
        static REGEX: ::once_cell::sync::Lazy<::regex::Regex> =
            ::once_cell::sync::Lazy::new(|| ::regex::Regex::new($expr).unwrap());
        &REGEX
    }};
    ($expr:expr,) => {
        regex!($expr)
    };
}

#[macro_export]
macro_rules! select {
    ($selectors:literal) => {{
        static SELECTOR: ::once_cell::sync::Lazy<::scraper::selector::Selector> =
            ::once_cell::sync::Lazy::new(|| {
                ::scraper::selector::Selector::parse($selectors).unwrap()
            });
        &SELECTOR
    }};
    ($selectors:literal,) => {
        selector!($selectors)
    };
}