--- /dev/null
+module I18n
+ module Locale
+ module Tag
+ module Parents
+ def parent
+ @parent ||= begin
+ segs = to_a.compact
+ segs.length > 1 ? self.class.tag(*segs[0..(segs.length-2)].join('-')) : nil
+ end
+ end
+
+ def self_and_parents
+ @self_and_parents ||= [self] + parents
+ end
+
+ def parents
+ @parents ||= ([parent] + (parent ? parent.parents : [])).compact
+ end
+ end
+ end
+ end
+end