private function enablePragma($name)
    {
        $this->pragmas[$name] = true;

        switch ($name) {
            case Mustache_Engine::PRAGMA_BLOCKS:
                $this->pragmaBlocks = true;
                break;

            case Mustache_Engine::PRAGMA_FILTERS:
                $this->pragmaFilters = true;
                break;
        }
    }