Function terminated 

pub fn terminated<I, O1, O2, E, F, G>(first: F, second: G) -> impl FnMut(I)
where
    E: ParseError<I>,
    F: Parser<I, O1, E>,
    G: Parser<I, O2, E>,

Available on (crate features rustls or boring or acme) and crate feature rustls only.

Gets an object from the first parser, then matches an object from the second parser and discards it.

Arguments

• first The first parser to apply.
• second The second parser to match an object.

use nom::sequence::terminated;
use nom::bytes::complete::tag;

let mut parser = terminated(tag("abc"), tag("efg"));

assert_eq!(parser("abcefg"), Ok(("", "abc")));
assert_eq!(parser("abcefghij"), Ok(("hij", "abc")));
assert_eq!(parser(""), Err(Err::Error(("", ErrorKind::Tag))));
assert_eq!(parser("123"), Err(Err::Error(("123", ErrorKind::Tag))));