# File lib/active_support/vendor/i18n-0.4.1/i18n/locale/tag/rfc4646.rb, line 65 def match(tag) c = PATTERN.match(tag.to_s).captures c[0..4] << (c[5].nil? ? c[6] : c[5]) << c[7] # TODO c[7] is grandfathered, throw a NotImplemented exception here? rescue false end