Function gobble::repeater::sep_until

pub fn sep_until<A, B, C>(a: A, b: B, c: C) -> SepUntil<A, B, C> where
    A: Parser,
    B: Parser,
    C: Parser, 

Allows for better errors looping until a specific finish. It does not return the close or the seperators the close is expected to be some kind of closer like '}' If you need the close you will have to use sep(..).then(..) though the errors will be less nice