如何在 CMD/c++ 中重命名包含特殊字符的文件？

Question

Today I'm struggling on a problem that was already half answered on other posts.

Here is what I try to do in c++ using dos command through the system command:

command = "s: && cd " + all_paths[i] + " && rename \"" + linestring + "\" \"" + completeCorrectName+"\"";
//what it really contain is => "s: && cd S:\\Holliday\\Spain\\ && rename \"Spain - été 2018 !.mkv\" \"Spain - pool 2018.mkv\""
system(command.c_str());

This is a dos command that I launch through a c++ program so I can use a lot more native functions.

Everything is working fine ! Except that I cannot rename a file that is containing special characters. Because of that, I get an error: "Specified file unreachable". And that is because special characters are memorized in my string variable as this:

"maŒtre et ‚lŠve.mkv"

So I tried "wstring" , I tried "#Define UNICODE" and also "#Define _UNICODE" ... Nothing works.

EDIT: I used cmd/dos because of the dir method which is usefull. I save the dir method like this:

command = "s: && cd " + all_paths[i] + " && dir /a-d /o-d /b *";
            FILE* fpipe = _popen(command.c_str(),"r"); // run dir command and save it inside fpipe => memory file
            if (fpipe) // If we can read it successfully
            {
                char line[500];
                string linestring;
                while (fgets(line, 500, fpipe)) // looping on each line
                {
                    linestring.clear();
                    for (int j : line) //Convert buffer in string
                    {
                        linestring.push_back(j);
                    }
              }

Answer 1

Problem solved: Indeed the dir command cannot save utf8 correctly, i was forced to find another way. I took "dirent.h" from github it solved the problem in a few lines:

        DIR* directory = opendir(path);
        struct dirent* direntStruct;

        if (directory != NULL)
        {
            while (direntStruct = readdir(directory))
            {
                printf("File Name: %s\n", direntStruct->d_name);
            }
        }

However, it still can't handle characters like this: 'œ' Because this is really special it's about two letters in one. For example original name of:

"Breach - 160 - Testament - Ton cœur est ici.mkv"

Will be read as:

B4RHTQ~A.MKV

This is an internal problem in the dirent.h framework, anyway if you try to rename the file it still work ! Just don't expect getting information from the file name... I did not find a solution about this.