public static function instance()
{
if (!Kotwig::$instance) {
Kotwig::$instance = new static();
// Load Twig configuration
Kotwig::$instance->config = Kohana::$config->load('kotwig');
// Create the the loader
$views = Kohana::include_paths();
$look_in = array();
foreach ($views as $key => $view) {
$dir = $view . Kotwig::$instance->config->templates;
if (is_dir($dir)) {
$look_in[] = $dir;
}
}
$loader = new Twig_Loader_Filesystem($look_in);
// Set up Twig
Kotwig::$instance->twig = new Twig_Environment($loader, Kotwig::$instance->config->environment);
foreach (Kotwig::$instance->config->extensions as $extension) {
// Load extensions
Kotwig::$instance->twig->addExtension(new $extension());
}
foreach (Kotwig::$instance->config->globals as $global => $object) {
// Load globals
Kotwig::$instance->twig->addGlobal($global, $object);
}
foreach (Kotwig::$instance->config->filters as $filter => $object) {
// Load filters
Kotwig::$instance->twig->addFilter($filter, $object);
}
}
return Kotwig::$instance;
}
public function set_filename($file)
{
$ext = Kotwig::instance()->config['suffix'];
if ($ext === NULL) {
$this->_file = $file;
} else {
$this->_file = $file . '.' . $ext;
}
return $this;
}