public function isScenarioParameter($value, $checkExp = false) {
        if ($this->scenarioParameters === null) {
            $this->initParameters();
        }
        $result = isset($this->scenarioParameters[$value]);
        if (!$result) {
            if (substr($value, 0, 1) === "%" && substr($value, strlen($value) - 1, 1) === "%") {
                $result = true;
            }
        }
        if (!$result && $checkExp === true) {
            foreach ($this->scenarioParameters as $key => $v) {
                if (preg_match("/" . $key . "/", $value)) {
                    $result = true;
                    break;
                }
            }
        }
        return $result;
    }