On 5 Nov 2015 11:52 am, "Nicolas Petton" wrote: > > Artur Malabarba writes: > > > I would expect it to be a macro, > > (prog1 (stream-car stream) (setq stream (stream-cdr stream))) > > My thought exactly. Do you think this should be in stream.el? Yes. It's a super convenient way to consume sequences.