src/Helper/ShortCodesProcessor.php
protected function parseShortCodeAttributes($text)
    {
        $attributes = array();
        $pattern    =
            '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s' .
            '|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/';
        $text       = preg_replace("/[\x{00a0}\x{200b}]+/u", " ", $text);
        if (preg_match_all($pattern, $text, $matches, PREG_SET_ORDER)) {
            foreach ($matches as $match) {
                if (!empty($match[1])) {
                    $attributes[strtolower($match[1])] = stripcslashes($match[2]);
                } elseif (!empty($match[3])) {
                    $attributes[strtolower($match[3])] = stripcslashes($match[4]);
                } elseif (!empty($match[5])) {
                    $attributes[strtolower($match[5])] = stripcslashes($match[6]);
                } elseif (isset($match[7]) and strlen($match[7])) {
                    $attributes[] = stripcslashes($match[7]);
                } elseif (isset($match[8])) {
                    $attributes[] = stripcslashes($match[8]);
                }
            }
        } else {
            $attributes = ltrim($text);
        }

        return $attributes;
    }
protected function parseShortCodeAttributes($text)
    {
        $attributes = array();
        $pattern    =
            '/(\w+)\s*=\s*"([^"]*)"(?:\s|$)|(\w+)\s*=\s*\'([^\']*)\'(?:\s' .
            '|$)|(\w+)\s*=\s*([^\s\'"]+)(?:\s|$)|"([^"]*)"(?:\s|$)|(\S+)(?:\s|$)/';
        $text       = preg_replace("/[\x{00a0}\x{200b}]+/u", " ", $text);
        if (preg_match_all($pattern, $text, $matches, PREG_SET_ORDER)) {
            foreach ($matches as $match) {
                if (!empty($match[1])) {
                    $attributes[strtolower($match[1])] = stripcslashes($match[2]);
                } elseif (!empty($match[3])) {
                    $attributes[strtolower($match[3])] = stripcslashes($match[4]);
                } elseif (!empty($match[5])) {
                    $attributes[strtolower($match[5])] = stripcslashes($match[6]);
                } elseif (isset($match[7]) and strlen($match[7])) {
                    $attributes[] = stripcslashes($match[7]);
                } elseif (isset($match[8])) {
                    $attributes[] = stripcslashes($match[8]);
                }
            }
        } else {
            $attributes = ltrim($text);
        }

        return $attributes;
    }
Parse short code attributes

@param string $text short code attributes

@return array|string