http://docs.racket-lang.org/drracket/extending-drracket.html?q=teachpack#(part._teachpacks)
----- As an example, the following teachpack provides a lazy cons implementation. To test it, be sure to save it in a file named "lazycons.ss". ... Then, in this program: ... the list all-nums is bound to an infinite list of ascending numbers. ----- 1. It's not clear why one must "be sure to" save it in that particular name. 2. The above docs don't say to actually *install* the Teachpack. Presumably #2 meant to reference "lazycons.ss". But the "be sure to" is misleading (the name is meaningless). Also, the .ss should probably be .rkt. _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
