cebe\markdown\inline\LinkTrait::consumeReference PHP 메소드

    protected function consumeReference($lines, $current)
    {
        while (isset($lines[$current]) && preg_match('/^ {0,3}\\[(.+?)\\]:\\s*(.+?)(?:\\s+[\\(\'"](.+?)[\\)\'"])?\\s*$/', $lines[$current], $matches)) {
            $label = strtolower($matches[1]);
            $this->references[$label] = ['url' => $this->replaceEscape($matches[2])];
            if (isset($matches[3])) {
                $this->references[$label]['title'] = $matches[3];
            } else {
                // title may be on the next line
                if (isset($lines[$current + 1]) && preg_match('/^\\s+[\\(\'"](.+?)[\\)\'"]\\s*$/', $lines[$current + 1], $matches)) {
                    $this->references[$label]['title'] = $matches[1];
                    $current++;
                }
            }
            $current++;
        }
        return [false, --$current];
    }