From: Brian Candler <B.Candler@...>
Date: 2007-03-14T05:57:08+09:00
Subject: Re: YAML and ruby classes

On Wed, Mar 14, 2007 at 01:25:06AM +0900, Matteo Cavalleri wrote:
> Stefano Crocco <stefano.crocco@alice.it> wrote:
> 
> > name.split('::').inject(Object){|res, c| c.const_get(c)}.new h
> 
> this is pretty complicated for my current knowledge of ruby :D the
> method suggested by ken bloom works and is simpler for me, but thanks
> anyway for you help! :)

To get at Foo::Bar::Baz you need to do

    klass = Object.const_get("Foo").const_get("Bar").const_get("Baz")

So that one-liner above is really another way of writing:

name = "Foo::Bar::Baz"
names = name.split("::")
klass = Object
while n = names.shift
  klass = klass.const_get(n)
end