scope_keys_by_partial

# File actionpack/lib/action_view/helpers/translation_helper.rb, line 44
        def scope_keys_by_partial(keys)
          Array.wrap(keys).map do |key|
            key = key.to_s

            if key.first == "."
              template.path_without_format_and_extension.gsub(%r{/_?}, ".") + key
            else
              key
            end
          end
        end