Function nom::sequence::delimited

pub fn delimited<I, O1, O2, O3, E: ParseError<I>, F, G, H>(
    first: F, 
    sep: G, 
    second: H
) -> impl FnMut(I) -> IResult<I, O2, E> where
    F: Parser<I, O1, E>,
    G: Parser<I, O2, E>,
    H: Parser<I, O3, E>, 

Matches an object from the first parser, then gets an object from the sep_parser, then matches another object from the second parser.

Arguments

• first The first parser to apply.
• sep The separator parser to apply.
• second The second parser to apply.

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

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

assert_eq!(parser("abc|efg"), Ok(("", "|")));
assert_eq!(parser("abc|efghij"), Ok(("hij", "|")));
assert_eq!(parser(""), Err(Err::Error(("", ErrorKind::Tag))));
assert_eq!(parser("123"), Err(Err::Error(("123", ErrorKind::Tag))));