JSON-decode recursively until it isn't JSON anymore.

jason-voorhees.rb

# encoding: utf-8

require 'json'

# For when someone puts JSON in your JSON
# (because MurderingRampage™)
class JasonVoorhees
  def self.load(*args)
    self.new(JSON).load(*args)
  end

  def initialize(coder = JSON)
    @coder = coder
  end

  def load(thing)
    case thing
    when String
      load(@coder.load(thing)) rescue thing
    when Hash
      thing.each_with_object({}) do |(key, value), memo|
        memo[key] = load(value)
      end
    when Array
      thing.map do |value|
        load(value)
      end
    else
      thing
    end
  end
end