User-defined nested rendering, synchronous

nested.coffee

ck = require 'coffeekup'

tpl = ->
  html ->
    head ->
      title 'title'
    body ->
      render 'index.coffee'

render = (file) ->
  code = require('fs').readFileSync file, 'utf8'
  ck.render code, context: @

puts ck.render tpl, locals: {render: render}