Macro gettextrs::dcngettext

macro_rules! dcngettext {
    ($domain:expr, $singular:expr, $($singular_names:ident = $singular_values:expr),*, $plural:expr, $($plural_names:ident = $plural_values:expr),*, $n:expr, $category:expr) => { ... };
}

Like dcngettext, but allows for formatting.