From: vimal <cool.vimalsmail@...>
Date: 2009-02-16T21:20:03+09:00
Subject: Hash :: Recursive traversing and stripping the values

Hi,
    I am a Ruby Newbie.

    I wrote a function for stripping all the values(a recursive one if
it is a nested hash) but i almost end up in an
    error suggesting "Error => in `strip_hash_values': stack level too
deep (SystemStackError)".
    Can someone help me with this.

    -------------------------------------------
    Here's the code:
    -------------------------------------------

    def strip_hash_values(hash)

      hash.each do |k, v|

        if v.class == String
          hash[k] == v.strip!

        elsif v.class == Array
          v.each do |vv|
            vv.strip!
          end

        elsif v.class == Hash
          strip_hash_values(hash)
        end

      end

    end

Thanx,
Vimal Das