Bring translations lookup fallback to a lower level so at any point a…

… user can ask for a `pt-br` style locale.

TODO: verify handling of capitalization with rails locales.

lib/countries/country.rb

@@ -80,7 +80,7 @@ def local_names
       ISO3166.configuration.locales = (ISO3166.configuration.locales + languages.map(&:to_sym)).uniq
       reload
 
-      @local_names ||= languages.map { |language| translations[language] || translations[language.sub(/-.*/, '')]}
+      @local_names ||= languages.map { |language| translations[language] }
     end
 
     def local_name

lib/countries/data.rb

@@ -15,11 +15,12 @@ def call
     end
 
     class << self
-
       def register(data)
         alpha2 = data[:alpha2].upcase
         @@registered_data[alpha2] = \
-         data.inject({}) { |a,(k,v)| a[k.to_s] = v;  a }
+          data.inject({}) { |a,(k,v)| a[k.to_s] = v; a }
+        @@registered_data[alpha2]["translations"] = \
+          Translations.new.merge(data[:translations] || {})
         @@cache = cache.merge(@@registered_data)
       end
 
@@ -105,7 +106,7 @@ def loaded_locales
       def load_translations(locale)
         locale_names = load_cache(['cache', 'locales', "#{locale}.json"])
         internal_codes.each do |alpha2|
-          @@cache[alpha2]['translations'] ||= {}
+          @@cache[alpha2]['translations'] ||= Translations.new
           @@cache[alpha2]['translations'][locale] = locale_names[alpha2].freeze
           @@cache[alpha2]['translated_names'] = @@cache[alpha2]['translations'].values.freeze
         end

lib/countries/iso3166.rb

@@ -6,6 +6,7 @@
 require 'countries/configuration'
 require 'countries/data'
 require 'countries/structure'
+require 'countries/translations'
 require 'countries/country/class_methods'
 require 'countries/country/emoji'
 require 'countries/country'

lib/countries/translations.rb

@@ -0,0 +1,7 @@
+module ISO3166
+  class Translations < Hash
+    def [](locale)
+      super(locale) || super(locale.sub(/-.*/, ""))
+    end
+  end
+end