From https://gist.github.com/648950 by yoko

dispatcher.js.coffee

dispatcher =
  location: window.location
  stash: []

  connect: (paths, action) ->
    if paths or paths is 0
      paths = paths.valueOf()

      # webkit: typeof RegExp is function
      if typeof paths is 'object' and not paths instanceof RegExp
        paths = { pathname: paths }

      @.stash.push [paths, action]

    @   

  and: () ->
    stash = @.stash
    length = stash.length
    length[length - 1][2] = true if length > 0 
    @   

  dispatch: (location) ->
    location = if location then location else dispatcher.location
    stash = @.stash
    params = {}

    for data in stash
      paths = data[0]; action = data[1]; chain = data[2]
      matched = false

      for key in paths
        continue unless paths.hasOwnProperty(key) and paths[key]
        continue unless location[key]

        value = paths[key]; path = location[key]

        result = @.match(value, path)
        matched = !!result

        break unless matched

        params[key] = result

    if matched
      action? and action(params)
      break unless chain

    @.clear()

    @   

  match: (value, path) ->
    if value instanceof RegExp
      result = value.exec(path) or false
    else
      value = value.toString()
      result = path.indexOf(value) isnt -1 and value
    result

  clear: () ->
    @.stash = []
    @