nom::sequence

Function terminated

Source
pub fn terminated<I, O, E: ParseError<I>, F, G>(
    first: F,
    second: G,
) -> impl Parser<I, Output = O, Error = E>
where F: Parser<I, Output = O, Error = E>, G: Parser<I, Error = E>,
Expand description

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

ยงArguments

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