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;
}