Simple Coffeescript templating

template.coffee

# inspired by this post: 
# http://mir.aculo.us/2011/03/09/little-helpers-a-tweet-sized-javascript-templating-engine/

t = (s,d) ->
  f = (p,c) -> p.replace new RegExp("{{#{c}}}", 'g'), d[c]
  (Object.keys d).reduce f,s


# ---
# usage examples

console.log t("Hello, {{who}}! Do you like {{color}}?", who: 'John', color: 'green')

timeOfDay = ->
	h = new Date().getHours()
	return 'morning' if 5 <= h < 12
	return 'afternoon' if 12 <= h < 19
	return 'evening' if 19 <= h < 23
	'night'

console.log t('Good {{timeOfDay}}!', {timeOfDay})