使用中文字符时文件名错误 [英] Wrong filename when using chinese characters

问题描述

我试图在Windows上使用汉字创建一个文件。整个路径在变量std :: string originalPath内，但是，我有一个字符集问题，我根本无法理解克服。

I'm trying to create a file on Windows using a Chinese character. The entire path is inside the variable "std::string originalPath", however, I have a charset problem that I simply cannot understand to overcome.

我写了以下代码：

#include <iostream>
#include <boost/locale.hpp>
#include <boost/filesystem/fstream.hpp>
#include <windows.h>

int main( int argc, char *argv[] )
{

    // Start the rand
    srand( time( NULL ) );

    // Create and install global locale
    std::locale::global( boost::locale::generator().generate( "" ) );
    // Make boost.filesystem use it
    boost::filesystem::path::imbue( std::locale() );

    // Check if set to utf-8
    if( std::use_facet<boost::locale::info>( std::locale() ).encoding() != "utf-8" ){
        std::cerr << "Wrong encoding" << std::endl;
        return -1;
    }

    std::string originalPath = "C:/test/s/一.png";

    // Convert to wstring (**WRONG!**)
    std::wstring newPath( originalPath.begin(), originalPath.end() );

    LPWSTR lp=(LPWSTR )newPath.c_str();
    CreateFileW(lp,GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ |
            FILE_SHARE_WRITE,     NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL );

    return 0;

}

运行它，但是， ：\test\s一个名为¦ㅈタ.png的文件，而不是一.png，我想要的。我发现克服这一点的唯一方法是交换线路。

Running it, however, I get inside the folder "C:\test\s" a file of name "￤ﾸﾀ.png", instead of "一.png", which I want. The only way I found to overcome this is to exchange the lines

std::string originalPath = "C:/test/s/一.png";

// Convert to wstring (**WRONG!**)
std::wstring newPath( originalPath.begin(), originalPath.end() );

简单

std::wstring newPath = L"C:/test/s/一.png";

在这种情况下，文件一.png完全出现在文件夹C：\test \s。尽管如此，我不能这样做，因为软件从std :: string变量获取它的路径。我认为从std :: string到std :: wstring的转换正在执行错误的方式，但是，正如可以看到，我有深刻的问题，试图理解这个逻辑。我阅读并彻底研究了谷歌，阅读了许多定性文本，但我的所有尝试似乎都没有用。我尝试了MultiByteToWideChar函数和boost :: filesystem，但是两者都没有帮助，我根本无法在写入文件夹时获得正确的文件名。

In this case the file "一.png" appears perfectly inside the folder "C:\test\s". Nonetheless, I cannot do that because the software get its path from a std::string variable. I think the conversion from std::string to std::wstring is being performed the wrong way, however, as it can be seen, I'm having deep problem trying to understand this logic. I read and researched Google exhaustively, read many qualitative texts, but all my attempts seem to be useless. I tried the MultiByteToWideChar function and also boost::filesystem, but both for no help, I simply cannot get the right filename when written to the folder.

学习，所以我很抱歉，如果我做一个愚蠢的错误。我的IDE是Eclipse，它设置为UTF-8。

I'm still learning, so I'm very sorry if I'm making a dumb mistake. My IDE is Eclipse and it is set up to UTF-8.

推荐答案

你需要实际转换UTF- UTF-16。为此，你必须查找如何使用 boost :: locale :: conv 或者（在Windows上） MultiByteToWideChar function。

You need to actually convert the UTF-8 string to UTF-16. For that you have to look up how to use boost::locale::conv or (on Windows only) the MultiByteToWideChar function.

std :: wstring newPath（originalPath.begin（），originalPath.end（））; 将不会工作，它将简单地复制所有字节逐个并将它们转换为wchar_t。

std::wstring newPath( originalPath.begin(), originalPath.end() ); won't work, it will simply copy all the bytes one by one and cast them to a wchar_t.

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