appengine/standard/i18n/templates/i18n_js.jinja2

{% extends "null_i18n_js.jinja2" %}
{% block i18n_functions -%}
var translations = {{ translations|safe }}
function get_value_from_translations(translations, msgid) {
  var ret = translations['catalog'][msgid]
  if (typeof(ret) == 'undefined' &&
      translations['fallback'] != null) {
      ret = get_value_from_translations(translations['fallback'], msgid);
  }
  return ret;
}

function plural_index(count, translations) {
  var s = 'var n = ' + count + '; var v = ' + translations['plural'];
  eval(s);
  return v;
}

function gettext(msgid) {
  var value = get_value_from_translations(translations, msgid);

  if (typeof(value) == 'undefined') {
    return msgid;
  } else {
    return (typeof(value) == 'string') ? value : value[0];
  }
}

function ngettext(singular, plural, count) {
  var value = get_value_from_translations(translations, singular);

  if (typeof(value) == 'undefined') {
    return (count == 1) ? singular : plural;
  } else {
    return value[plural_index(count, translations)];
  }
}
{%- endblock %}