Not sure I want this particular specimen in the public pipeline. Maybe if I can reduce it to something more comfortable.

regarding the channel description line, what is a good example of trampolining a parser?

I suspect it is tongue in cheek, the internals of instaparse(and many gll parsers) use what you could call a trampoline to drive parsing

yeah, I think that came from a conversation with @gfredericks in which we discussed parsers generating parsers or some other unusual use case