From: David Garamond <lists@...6.isreserved.com>
Date: 2004-02-01T22:52:30+09:00
Subject: Re: check whether a class is defined, listing all classes

Robert Klemme wrote:
>>But what if the class name to be checked is a string?
>>("Test::Unit::TestCase")?
> 
> irb(main):005:0> eval "defined? " + "Test::Unit::TestCase"
> => nil
> irb(main):006:0> require 'test/unit/testcase'
> => true
> irb(main):007:0> eval "defined? " + "Test::Unit::TestCase"
> => "constant"

Hm, I should've added that I didn't want to involve 'eval'. But then why 
not, I'll just need to check the input using a simple regexp. After all, 
almost everything in Ruby (require, load, irb, class_eval) is using eval 
anyway...

Thanks again.

-- 
dave