module I18n::Backend::Simple::Implementation

def available_locales

Get available locales from the translations hash 
def available_locales
  init_translations unless initialized?
  translations.inject([]) do |locales, (locale, data)|
    locales << locale unless (data.keys - [:i18n]).empty?
    locales
  end
end

def init_translations 

def init_translations
  load_translations
  @initialized = true
end

def initialized? 

def initialized?
  @initialized ||= false
end

def lookup(locale, key, scope = [], options = {})

%w(currency format).
into multiple keys, i.e. currency.format is regarded the same as
nested translations hash. Splits keys or scopes containing dots
either key is nil, or locale, scope or key do not exist as a key in the
Looks up a translation from the translations hash. Returns nil if 
def lookup(locale, key, scope = [], options = {})
  init_translations unless initialized?
  keys = I18n.normalize_keys(locale, key, scope, options[:separator])
  keys.inject(translations) do |result, _key|
    _key = _key.to_sym
    return nil unless result.is_a?(Hash) && result.has_key?(_key)
    result = result[_key]
    result = resolve(locale, _key, result, options.merge(:scope => nil)) if result.is_a?(Symbol)
    result
  end
end

def reload!

Clean up translations hash and set initialized to false on reload! 
def reload!
  @initialized = false
  @translations = nil
  super
end

def store_translations(locale, data, options = {})

level of the hash.
translations will be overwritten by new ones only at the deepest
This uses a deep merge for the translations hash, so existing
Stores translations for the given locale in memory. 
def store_translations(locale, data, options = {})
  locale = locale.to_sym
  translations[locale] ||= {}
  data = data.deep_symbolize_keys
  translations[locale].deep_merge!(data)
end

def translations 

def translations
  @translations ||= {}
end