From: James Byrne <byrnejb@...>
Date: 2008-12-11T05:01:06+09:00
Subject: Re: Given a string find the matching class

botp wrote:


> 3 you can then check the value returned  by checking if it #is_a? Class
...
> 
>> Object.const_get("XX").is_a? Class
> => true
>> Object.const_get("Xx").is_a? Class
> => true
>> Object.const_get("YY")
> NameError: uninitialized constant YY
> 
> now,  if you want to find classes tucked in on other modules/classes,
> you'll have to scan the whole ObjectSpace; eg, looking for a class
> named "C" wc is in "A::B::C"...
...
> ObjectSpace.each_object(Class).each {|x| p x if x.name =~ /^M/ }
> Method
> MatchData
> Module
> M::MM

Many thanks for this lucid explanation.


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