// app.coffee

app = require('express')()

# registers the user component onto /user/
app.use '/user', require('./user')(app)

app.use '/contact', do (r=express.Router()) ->
  # registers an handler for GET /contact
  r.get '/', (req, res) -> res.render 'contact'
  r.post '/', (req, res) -> send_email req.body, ...
  r

// user.coffee

module.exports = (app) ->
  r = express.Router() # r is app-like, has .use(), .all(), .get(), .post(), etc

  # registers an handle for GET /user
  r.get '/', (req, res) -> res.render 'user/index'

  # registers an handle for POST /user/login
  r.post '/login', (req, res) -> do_login req.body, ...

  # registers the private messaging component onto /user/pm/
  r.use '/pm', require('./pm')(app)

  r