From: Anthony DeRobertis <aderobertis@...>
Date: 2006-02-23T07:03:18+09:00
Subject: Converting a string to a class

Take the following snippet:

module SomeModule
  class SomeClass
    SomeConstant = 3.1415
  end
end

   var = "SomeModule::SomeClass"
   print(var::SomeConstant)

This raises TypeError. So far, the only way I've found to do this (and
let me warn you, I'm quite new to Ruby so I may just be missing
something right in front of me) is like this:

  var = "SomeModule::SomeClass"
  eval "var = " + var
  print(var::SomeConstant)

which does indeed work, but I figure there has got to be a better way
than using eval.