Language: PHP
Label: safe
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
                    $this->emitToken(
                        array(
                            'type' => self::CHARACTR,
                            'data' => '<>'
                        )
                    );

                    $this->state = 'data';

                } elseif ($char === '?') {