org\parser\driver\Markdown::prepareItalicsAndBold PHP Метод

    protected function prepareItalicsAndBold()
    {
        #
        # Prepare regular expressions for searching emphasis tokens in any
        # context.
        #
        foreach ($this->em_relist as $em => $em_re) {
            foreach ($this->strong_relist as $strong => $strong_re) {
                # Construct list of allowed token expressions.
                $token_relist = array();
                if (isset($this->em_strong_relist["{$em}{$strong}"])) {
                    $token_relist[] = $this->em_strong_relist["{$em}{$strong}"];
                }
                $token_relist[] = $em_re;
                $token_relist[] = $strong_re;
                # Construct master expression from list.
                $token_re = '{(' . implode('|', $token_relist) . ')}';
                $this->em_strong_prepared_relist["{$em}{$strong}"] = $token_re;
            }
        }
    }