i18n with CoffeeScript

i18n.coffee

# Works with `global` instead of `window` when available (nodejs environment), no Backbone dependency,
# no ev[ai]l for rendering variables and a shorter `{...}` syntax.

(global or window).t = (id, vars = {}) ->
  (i18n[__locale][id] or i18n.en[id] or "(?) #{id}")
    .replace /\{(\w+)\}/g, (a, k) -> vars[k] or "?#{k}"


###
i18n=
  de:
    'foo, {bar}': '{bar} qux!'

__locale = 'de'

alert t 'foo, {bar}', bar: 123
###