From: John Date: 2002-07-27T13:32:40+09:00 Subject: Re: Call-by-need and/or Delayed Evaluation "Reginald Braithwaite-Lee" wrote in message news:243c635a.0207261955.54ae0bf@posting.google.com... > Hello: > > Has there been any work on using Ruby's closures to implement > call-by-need semantics, such as the freeze and thaw or delay and force > macros in Lisp? > > I'm especially interested in implementations of the Streams mentioned > in Abelson amd Sussman's "Structure and Interpretation of Computer > Programs" > > Thanks! > > In shallow waters, shrimps make fools of dragons. - Chinese Proverb Would it be possible to give pointers to information on the web for this Streams idea, or perhaps give us an overview? I am intrigued as to what they are. Thanks John.