[Part 11 of the FScheme series ] We’re now taking the first small step into the world of nondeterministic logic programming (chapter 16 of Bill Hails’ book ). Hopefully you enjoyed the last post about continuation passing and found the...

[Part 10 of the FScheme series ] We’re into one of the most magical chapters in Bill Hails’ book . We’re about to add a very strange and dangerous feature to the interpreter: ‘call/cc’ (“call with current continuation”...

I remember the strange feeling as a kid the first time I saw structured BASIC after having been doing everything with line numbers. Any time I happened to walk into a Radio Shack in the early 80s I’d just have to leave this behind:   I was in a GOTO...