Open issues in development:
+ (Cf_dyn): Exploring this as a refactoring of the Cf_flow module, with all new
- functions and maybe some different operators.
+ functions and maybe some different operators. The serial loop composers
+ are not included because their utility is unclear. The transcoder section
+ is not included because the LL(x) scanner should be used instead.
+ (Cf_seq): The tentative weave functions are probably a bad idea. It probably
makes more sense to unfold/weave the new Cf_llscan.t instead.