pQuery\CSSQueryTokenizer::parse_compare PHP Метод

    protected function parse_compare()
    {
        if ($this->pos + 1 < $this->size && $this->doc[$this->pos + 1] === '=') {
            switch ($this->doc[$this->pos++]) {
                case '$':
                    return $this->token = self::TOK_COMPARE_ENDS;
                case '%':
                    return $this->token = self::TOK_COMPARE_REGEX;
                case '^':
                    return $this->token = self::TOK_COMPARE_STARTS;
                case '<':
                    return $this->token = self::TOK_COMPARE_SMALLER_THAN;
            }
        }
        return false;
    }