Function nom::multi::many0

source ·
pub fn many0<I, O, E, F>(f: F) -> impl Fn(I) -> IResult<I, Vec<O>, E>
where I: Clone + PartialEq, F: Fn(I) -> IResult<I, O, E>, E: ParseError<I>,
Expand description

Repeats the embedded parser until it fails and returns the results in a Vec.

§Arguments

  • f The parser to apply.
use nom::multi::many0;
use nom::bytes::complete::tag;

fn parser(s: &str) -> IResult<&str, Vec<&str>> {
  many0(tag("abc"))(s)
}

assert_eq!(parser("abcabc"), Ok(("", vec!["abc", "abc"])));
assert_eq!(parser("abc123"), Ok(("123", vec!["abc"])));
assert_eq!(parser("123123"), Ok(("123123", vec![])));
assert_eq!(parser(""), Ok(("", vec![])));