wimg / PHPCompatibility

     *

     * @return bool

     */

    private function isInvalidOctalInteger($tokens, $stackPtr) {

        $token = $tokens[$stackPtr];

        if ($token['code'] === T_LNUMBER && preg_match('`^0[0-7]*[8-9]+[0-9]*$`D', $token['content']) === 1) {

            return true;

        }

        return false;

    }

    /**

     * Is the current token a hexidecimal numeric string ?

     *

     * @return bool

     */

    private function isHexidecimalNumericString($tokens, $stackPtr) {

        $token = $tokens[$stackPtr];

        if ($token['code'] === T_CONSTANT_ENCAPSED_STRING && preg_match('`^0x[a-f0-9]+$`iD', $this->stripQuotes($token['content'])) === 1) {

            return true;

        }

        return false;

    }

}//end class