From: Harry Kakueki <list.push@...>
Date: 2012-11-30T16:09:59+09:00
Subject: Re: Ordered Hash (v. 1.8)

> I am running Ruby v. 1.8.7 and I have installed the orderedhash gem.  I
> know that the purpose of orderedhash is to preserve the order of
> creation.  However, what I'd really like to do is, after the hash has
> been created, sort it on the key in a manner similar to the way that I
> would sort an array with the sort!() method and then preserve the sorted
> order.  Any ideas on how I might accomplish that feat?  Thanks for any
> input.
>
>      ... doug


# If you want to also keep the original order, maybe this is worth a look.
# I'm using 1.9 so I can't test it for your setup.

class Hash
  def myway
    Hash[*sort.flatten]  #Ruby 1.8 ?
    #Hash[sort]   # Ruby1.9
  end
end

h = {}
arr = ["t","c","h","b","l"]
arr.each{|x| h[x] = x + "ook"}

p h                #>  {"t"=>"took", "c"=>"cook", "h"=>"hook",
"b"=>"book", "l"=>"look"}
p h.myway  #>  {"b"=>"book", "c"=>"cook", "h"=>"hook", "l"=>"look", "t"=>"took"}


Harry