Christian Neukirchen ha scritto:
<snip>
> 
> That's very nice and useful (I often wished for it), but goo already
> had it for a long time. :-) It is called "packing" there, see
> http://people.csail.mit.edu/jrb/goo/manual.46/goomanual_29.html

wow, I always thought GOO was cool, it seem I need to investigate it 
more deeply :)

> I think the implementation with instance_eval can be a bit surprising,
> maybe [Dynamic Variables][1] could do that better.

yup, instance_eval is an hack, but I liked the idea of just allowing 
#take inside #gather, which I don't have Idea how to reproduce withouth 
it. Using DynaVars seem definitely a cool hack, anyway :)