class Sinatra::Base

def route(verb, path, opts={}, &block)
  host_name  opts[:host]  if opts.key?(:host)
  user_agent opts[:agent] if opts.key?(:agent)
  accept_mime_types opts[:provides] if opts.key?(:provides)
  pattern, keys = compile(path)
  conditions, @conditions = @conditions, []
  define_method "#{verb} #{path}", &block
  unbound_method = instance_method("#{verb} #{path}")
  block = lambda { unbound_method.bind(self).call }
  (routes[verb] ||= []).
    push([pattern, keys, conditions, block]).last
end