pub fn separated_list1<I, O, O2, E, F, G>(
    sep: G,
    f: F
) -> impl FnMut(I) -> IResult<I, Vec<O>, E> where
    I: Clone + InputLength,
    F: Parser<I, O, E>,
    G: Parser<I, O2, E>,
    E: ParseError<I>, 
This is supported on crate feature alloc only.
Expand description

Alternates between two parsers to produce a list of elements. Fails if the element parser does not produce at least one element.


  • sep Parses the separator between list elements.
  • f Parses the elements of the list.
use nom::multi::separated_list1;
use nom::bytes::complete::tag;

fn parser(s: &str) -> IResult<&str, Vec<&str>> {
  separated_list1(tag("|"), tag("abc"))(s)

assert_eq!(parser("abc|abc|abc"), Ok(("", vec!["abc", "abc", "abc"])));
assert_eq!(parser("abc123abc"), Ok(("123abc", vec!["abc"])));
assert_eq!(parser("abc|def"), Ok(("|def", vec!["abc"])));
assert_eq!(parser(""), Err(Err::Error(Error::new("", ErrorKind::Tag))));
assert_eq!(parser("def|abc"), Err(Err::Error(Error::new("def|abc", ErrorKind::Tag))));