lib/mcollective/vendor/i18n/lib/i18n/core_ext/hash.rb

   1 class Hash
   2   def slice(*keep_keys)
   3     h = {}
   4     keep_keys.each { |key| h[key] = fetch(key) }
   5     h
   6   end unless Hash.method_defined?(:slice)
   7
   8   def except(*less_keys)
   9     slice(*keys - less_keys)
  10   end unless Hash.method_defined?(:except)
  11
  12   def deep_symbolize_keys
  13     inject({}) { |result, (key, value)|
  14       value = value.deep_symbolize_keys if value.is_a?(Hash)
  15       result[(key.to_sym rescue key) || key] = value
  16       result
  17     }
  18   end unless Hash.method_defined?(:deep_symbolize_keys)
  19
  20   # deep_merge_hash! by Stefan Rusterholz, see http://www.ruby-forum.com/topic/142809
  21   MERGER = proc do |key, v1, v2|
  22     Hash === v1 && Hash === v2 ? v1.merge(v2, &MERGER) : v2
  23   end
  24
  25   def deep_merge!(data)
  26     merge!(data, &MERGER)
  27   end unless Hash.method_defined?(:deep_merge!)
  28 end
  29