public static Parser <TToken, IDelayed <ISeq <T> > > ManyTill <TToken, T>(
this Parser <TToken, T> parser,
Parser <TToken, Unit> terminator)
{
return(terminator.Select(_ => Seq.Empty <T>())
.Or(parser.SelectMany(head => InternalCombinator.ManyTill(parser, terminator)
.Select(tail => Seq.Cons(head, tail)))));
}
