Iterate is pretty sweet. Also, you can extend it by using macros: http://items.sjbach.com/280/extending-the-iterate-macro http://items.sjbach.com/280/extending

Iterate is pretty sweet. Also, you can extend it by using macros: http://items.sjbach.com/280/extending-the-iterate-macro http://items.sjbach.com/280/extending-the-iterate-macro And iterate has good documentation: http://common-lisp.net/project/iterate/ http://common-lisp.net/project/iterate/