Function parser_combinators::combinator::sep_by

pub fn sep_by<F, P, S>(parser: P, separator: S) -> SepBy<F, P, S> where
    F: FromIterator<<P as Parser>::Output>,
    P: Parser,
    S: Parser<Input = <P as Parser>::Input>, 

Parses parser zero or more time separated by separator, returning a collection with the values from p. If the returned collection cannot be inferred type annotations must be supplied, either by annotating the resulting type binding let collection: Vec<_> = ... or by specializing when calling sep_by, sep_by::<Vec<_>, _, _>(...)

 let mut parser = sep_by(digit(), token(','));
 let result_ok = parser.parse("1,2,3");
 assert_eq!(result_ok, Ok((vec!['1', '2', '3'], "")));
 let result_ok2 = parser.parse("");
 assert_eq!(result_ok2, Ok((vec![], "")));