SqlParser\Utils\Formatter::isClause PHP Method

    public static function isClause($token)
    {
        if ($token->type === Token::TYPE_NONE && strtoupper($token->token) === 'DELIMITER' || $token->type === Token::TYPE_KEYWORD && isset(Parser::$STATEMENT_PARSERS[$token->value])) {
            return 2;
        } elseif ($token->type === Token::TYPE_KEYWORD && isset(Parser::$KEYWORD_PARSERS[$token->value])) {
            return 1;
        }
        return false;
    }