private function parseLinks($text)
    {
        $offset = 0;
        $matches = array();
        // Extract all links from the text of the passage (if they exist)
        while (preg_match($this->links_pattern, $text, $matches, 0, $offset)) {
            switch ($matches[2]) {
                case '->':
                    $this->links[] = array('text' => trim($matches[1]), 'link' => trim($matches[3]));
                    $this->raw_links[] = $matches[0];
                    break;
                case '<-':
                case '|':
                    $this->links[] = array('text' => trim($matches[3]), 'link' => trim($matches[1]));
                    $this->raw_links[] = $matches[0];
                    break;
                default:
                    throw new \RuntimeException("Something that looked like a link could not be parsed.");
            }
            $offset = mb_stripos($text, $matches[0]) + mb_strlen($matches[0]);
        }
    }