Markdownify\Converter::handleTag_a_converter PHP Метод

    protected function handleTag_a_converter($tag, $buffer)
    {
        if (empty($tag['href']) && empty($tag['title'])) {
            // empty links... testcase mania, who would possibly do anything like that?!
            return '[' . $buffer . ']()';
        }
        if ($buffer == $tag['href'] && empty($tag['title'])) {
            // <http://example.com>
            return '<' . $buffer . '>';
        }
        $bufferDecoded = $this->decode(trim($buffer));
        if (substr($tag['href'], 0, 7) == 'mailto:' && 'mailto:' . $bufferDecoded == $tag['href']) {
            if (is_null($tag['title'])) {
                // <[email protected]>
                return '<' . $bufferDecoded . '>';
            }
            // [[email protected]][1]
            // ...
            //  [1]: mailto:[email protected] Title
            $tag['href'] = 'mailto:' . $bufferDecoded;
        }
        if ($this->linkPosition == self::LINK_IN_PARAGRAPH) {
            return '[' . $buffer . '](' . $this->getLinkReference($tag) . ')';
        }
        // [This link][id]
        foreach ($this->footnotes as $tag2) {
            if ($tag2['href'] == $tag['href'] && $tag2['title'] === $tag['title']) {
                $tag['linkID'] = $tag2['linkID'];
                break;
            }
        }
        if (!isset($tag['linkID'])) {
            $tag['linkID'] = count($this->footnotes) + 1;
            array_push($this->footnotes, $tag);
        }
        return '[' . $buffer . '][' . $tag['linkID'] . ']';
    }