gettextrs
macro_rules! dngettext { ($domainname:expr, $msgid:expr, $msgid_plural:expr, $n:expr, $($args:expr),+ $(,)?) => { ... }; }
Like dngettext, but allows for formatting.
dngettext
It calls dngettext on domainname, msgid, msgid_plural, and n, and then replaces each occurrence of {} with the next value out of args.
domainname
msgid
msgid_plural
n
{}
args