Jan Arne Petersen <jpetersen / uni-bonn.de> wrote in message news:<ki81ca.5jf.ln / janarne.petersen.net>... > JRuby (http://jruby.sf.net) is a pure Java implementation of the Ruby interpreter, being developed > by Jan Arne Petersen and others. Jan, does JRuby implement, or will it implement, callcc? Avi