Giving further access to Gettext.plural_keys so at least an outside c…

…an add more mappings than the :en default.

lib/i18n/gettext.rb

@@ -8,11 +8,12 @@ module Gettext
     @@plural_keys = { :en => [:one, :other] }
 
     class << self
-      # returns an array of plural keys for the given locale so that we can
-      # convert from gettext's integer-index based style
+      # returns an array of plural keys for the given locale or the whole hash
+      # of locale mappings to plural keys so that we can convert from gettext's
+      # integer-index based style
       # TODO move this information to the pluralization module
-      def plural_keys(locale)
-        @@plural_keys[locale] || @@plural_keys[:en]
+      def plural_keys(*args)
+        args.length == 0 ? @@plural_keys : @@plural_keys[args.first] || @@plural_keys[:en]
       end
 
       def extract_scope(msgid, separator)