gan_selector_html.php
protected function parse_not() {
		if ((($this->pos + 1) < $this->size) && ($this->doc[$this->pos + 1] === '=')) {
			++$this->pos;
			return ($this->token = self::TOK_COMPARE_NOT_EQUAL);
		} else {
			return ($this->token = self::TOK_NOT);
		}
	}
protected function parse_not() {
		if ((($this->pos + 1) < $this->size) && ($this->doc[$this->pos + 1] === '=')) {
			++$this->pos;
			return ($this->token = self::TOK_COMPARE_NOT_EQUAL);
		} else {
			return ($this->token = self::TOK_NOT);
		}
	}
Parse "!" character
@internal Could be {@link TOK_NOT} or {@link TOK_COMPARE_NOT_EQUAL}
@return int