recognize

# File actionpack/lib/action_dispatch/journey/router.rb, line 86
      def recognize(req)
        find_routes(req.env).each do |match, parameters, route|
          unless route.path.anchored
            req.env['SCRIPT_NAME'] = match.to_s
            req.env['PATH_INFO']   = match.post_match.sub(/^([^\/])/, '/\1')
          end

          yield(route, nil, parameters)
        end
      end