continuations
Continuations are a way of capturing the current state of the program and packaging it for later call (see wikipedia:Continuations))
  • arnesi - arnesi is a collection of utilities written by Marco Baringer
  • cl-cont - cl-cont is a delimited continuations library for Common Lisp
  • generators - Generators is a library that provides python style generators in common lisp, by using cl-cont delimited continuations
  • pygen - pygen - Python-style generators library