From: gabriele renzi <surrender_it@...>
Date: 2005-03-21T15:14:51+09:00
Subject: Re: Paul Graham recommends Ruby

David A. Black ha scritto:

> I admit that for...in analogies don't do a whole lot for me -- it's
> not my favorite :-)  But I don't think the case is exactly the same.
> It's not so much the call/() thing as the method/lambda thing that I
> find incongruous -- that is, putting () after a variable that refers
> to a lambda and have the variable sort of morph into the equivalent of
> a method name.  Or something like that.

notice that it is not a lambda thing.. is something done for callable 
objects:

 >> a='yu '
=> "yup"
 >> def a.call( other) 'yuk yukl' end
=> nil
 >> a 10
=> "yuk yukl"

I think of it as to_str, a way to duck type a callable.