vc处理mysql中的换行

#include <mysql_driver.h>
#include <mysql_connection.h>
#include <cppconn/statement.h>
#include <cppconn/resultset.h>
#include <cppconn/prepared_statement.h>
#include <cppconn/metadata.h>
#include <cppconn/exception.h>
#include <iostream>
#include <regex>

void processNewLines(std::string& data) {
    // 将所有换行符统一替换为\n
    std::regex_replace(std::back_inserter(data), data.begin(), data.end(), std::regex("\\r\\n|\\r|\\n"), "\n");
}

int main() {
    try {
        sql::mysql::MySQL_Driver* driver = sql::mysql::get_mysql_driver_instance();
        std::unique_ptr<sql::Connection> con(driver->connect("tcp://127.0.0.1:3306", "user", "password"));
        con->setSchema("database");

        std::unique_ptr<sql::Statement> stmt(con->createStatement());
        std::unique_ptr<sql::ResultSet> res(stmt->executeQuery("SELECT text_column FROM table_name"));

        while (res->next()) {
            std::string data = res->getString("text_column");
            processNewLines(data);
            std::cout << data << std::endl;
        }
    } catch (sql::SQLException& e) {
        std::cerr << "SQL Error: " << e.what() << std::endl;
    } catch (std::exception& e) {
        std::cerr << "Error: " << e.what() << std::endl;
    }

    return 0;
}