From: "Iñaki Baz Castillo" <ibc@...>
Date: 2008-04-16T06:48:16+09:00
Subject: Re: Hash or bidimensional Array when key is case insensitive

El Martes, 15 de Abril de 2008, Jesús Gabriel y Galán escribió:

> >  Thanks but I don't understnad this point. Do you mean extending the Hash
> >  class? I don't think so since there is not any Key class. Could you
> > please explain in more detail you suggestion?
>
> What he means is that instead of lowercasing the key before inserting
> in the hash, you create a Key class in a way that the hash will think
> two keys are the same if they have the same string ignoring case.
> Something like (not tested):
>
> class Key
>   attr_reader :key
>   def initialize key
>     @key = key
>    end
>
>   def hash
>     @key.downcase.hash
>   end
>
>   def eql? other
>     @key.downcase.eql? other.downcase
>   end
> end
>
> and then you populate the hash as:
>
> h[Key.new(method)] = [method, values_for_method]
>
> this way you locate the entry in the hash ignoring case and have the
> original value in the value of the hash.
>
> Hope I've explained myself...

Sure, it's cool :)

Thanks a lot to both.


-- 
Iñaki Baz Castillo