From: Stefano Mioli <stefano.mioli@...>
Date: 2011-07-16T03:41:59+09:00
Subject: Re: Comparing hashes based on their keys

On 7/15/11 7:18 PM, Rob Biedenharn wrote:

> I don't see why you couldn't just add your own method to Hash. (Tested
> on ruby-1.9.2)

[snip]

> But that's probably a stretch and only *you* can decided if it's right
> for the situation.

I posted in the same gist a revised version of your method (see comment 
below).
I ended up not monkey-patching NilClass. I will just throw an 
ArgumentError if the argument is nil.

> P.S. I'm assuming that you don't consider supersets of keys to be
> "equal" and that you really do care that all the keys are symbols.

You're right about the supersets: if hash x as a key k and hash y misses 
that key, the two hashes are different.

About the symbols: I don't really care, because I know they will be symbols.


Thank you very much.

-- 
Stefano Mioli