Super simple string handlebars formatter

formatString.coffee

formatString = (string, locals) ->
  string.replace /{{([a-zA-Z\.]+)}}/g, (match, value) ->
    values = value.split(".")
    value = locals
    while key = values.shift()
      value = value[key]
    String value

Say formatString "Hello {{user.name}}", {user:name:"Cole"}