public function parseLines(array $lines)
    {
        $config = new SiteConfig();

        foreach ($lines as $line) {
            $line = trim($line);

            // skip comments, empty lines
            if ('' === $line || '#' === $line[0]) {
                continue;
            }

            // get command
            $command = explode(':', $line, 2);
            // if there's no colon ':', skip this line
            if (2 !== \count($command)) {
                continue;
            }

            $val = trim($command[1]);
            $command = trim($command[0]);
            if ('' === $command || '' === $val) {
                continue;
            }

            // check for commands where we accept multiple statements
            if (\in_array($command, ['title', 'body', 'strip', 'strip_id_or_class', 'strip_image_src', 'single_page_link', 'next_page_link', 'test_url', 'find_string', 'replace_string', 'login_extra_fields', 'native_ad_clue', 'date', 'author', 'strip_attr'], true)) {
                array_push($config->$command, $val);
            // check for single statement commands that evaluate to true or false
            } elseif (\in_array($command, ['tidy', 'prune', 'autodetect_on_failure', 'requires_login', 'skip_json_ld'], true)) {
                $config->$command = ('yes' === $val || 'true' === $val);
            // check for single statement commands stored as strings
            } elseif (\in_array($command, ['parser', 'login_username_field', 'login_password_field', 'not_logged_in_xpath', 'login_uri', 'src_lazy_load_attr'], true)) {
                $config->$command = $val;
            // check for replace_string(find): replace
            } elseif ((')' === substr($command, -1)) && preg_match('!^([a-z0-9_]+)\((.*?)\)$!i', $command, $match) && 'replace_string' === $match[1]) {
                array_push($config->find_string, $match[2]);
                array_push($config->replace_string, $val);
            } elseif ((')' === substr($command, -1)) && preg_match('!^([a-z0-9_]+)\(([a-z0-9_-]+)\)$!i', $command, $match) && 'http_header' === $match[1] && \in_array(strtolower($match[2]), ['user-agent', 'referer', 'cookie', 'accept'], true)) {
                $config->http_header[strtolower(trim($match[2]))] = $val;
            // special treatment for if_page_contains
            } elseif (\in_array($command, ['if_page_contains'], true)) {
                $this->handleIfPageContainsCondition($config, $val);
            }
        }

        return $config;
    }