routing: Unescape urls

Hello All,

How to make rails unescape incoming urls? I want to use russian chars
in routes, like:

map.city URI.escape("/Карта–:title–:id"), :controller =>
"cities", :action => "show" It seems to works (page loads) but all
links on page looks like this:
http://localhost/%D0%9A%D0%B0%D1%80%D1%82%D0%B0--Киев--30295?page=4

Rails double escapes url?

Also I tried url_for(.... :escape => false), it doesn't help.

Thanks in advance,
Eduard

SOLVED:
double escape fix

Much simpler:
ActionController::Routing::Segment::RESERVED_PCHAR=':@&=+$,;%'

Ticket / Patch:
https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/2574-routing-double-escape-url-segments

err,

to work properly you need to change other constants too.
Add this at top of your routes.rb:

ActionController::Routing::Segment.class_eval(<<-FIX, __FILE__,
__LINE__+1)
  RESERVED_PCHAR=':@&=+$,;%'
  SAFE_PCHAR = "\#{URI::REGEXP::PATTERN::UNRESERVED}\#
{RESERVED_PCHAR}"
  UNSAFE_PCHAR = Regexp.new("[^\#{SAFE_PCHAR}]", false, 'N').freeze
FIX