Question

I got this source code from somewhere on the Net. It searches for files on the hard disk and prints out the path of the files:

#include <string>
#include <vector>
#include <iostream>

#include <windows.h>
#include <conio.h>



int SearchDirectory(std::vector<std::string> &refvecFiles,
                    const std::string        &refcstrRootDirectory,
                    const std::string        &refcstrExtension,
                    bool                     bSearchSubdirectories = true)
{
  std::string     strFilePath;             // Filepath
  std::string     strPattern;              // Pattern
  std::string     strExtension;            // Extension
  HANDLE          hFile;                   // Handle to file
  WIN32_FIND_DATA FileInformation;         // File information


  strPattern = refcstrRootDirectory + "\\*.*";

  hFile = ::FindFirstFile(strPattern.c_str(), &FileInformation);
  if(hFile != INVALID_HANDLE_VALUE)
  {
    do
    {
      if(FileInformation.cFileName[0] != '.')
      {
        strFilePath.erase();
        strFilePath = refcstrRootDirectory + "\\" + FileInformation.cFileName;

        if(FileInformation.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
        {
          if(bSearchSubdirectories)
          {
            // Search subdirectory
            int iRC = SearchDirectory(refvecFiles,
                                      strFilePath,
                                      refcstrExtension,
                                      bSearchSubdirectories);
            if(iRC)
              return iRC;
          }
        }
        else
        {
          // Check extension
          strExtension = FileInformation.cFileName;
          strExtension = strExtension.substr(strExtension.rfind(".") + 1);

          if(strExtension == refcstrExtension)
          {
            // Save filename
            refvecFiles.push_back(strFilePath);
          }
        }
      }
    } while(::FindNextFile(hFile, &FileInformation) == TRUE);

    // Close handle
    ::FindClose(hFile);

    DWORD dwError = ::GetLastError();
    if(dwError != ERROR_NO_MORE_FILES)
      return dwError;
  }

  return 0;
}


int main()
{
  int                      iRC         = 0;
  std::vector<std::string> vecAviFiles;
  std::vector<std::string> vecTxtFiles;


  // Search 'c:' for '.avi' files including subdirectories
  iRC = SearchDirectory(vecAviFiles, "d:", "doc");
  if(iRC)
  {
    std::cout << "Error " << iRC << std::endl;
    return -1;
  }

  // Print results
  for(std::vector<std::string>::iterator iterAvi = vecAviFiles.begin();
      iterAvi != vecAviFiles.end();
      ++iterAvi)
    std::cout << *iterAvi << std::endl;

  // Search 'c:\textfiles' for '.txt' files excluding subdirectories
  /*
  iRC = SearchDirectory(vecTxtFiles, "c:\\textfiles", "txt", false);
  if(iRC)
  {
    std::cout << "Error " << iRC << std::endl;
    return -1;
  }

  // Print results
  for(std::vector<std::string>::iterator iterTxt = vecTxtFiles.begin();
      iterTxt != vecTxtFiles.end();
      ++iterTxt)
    std::cout << *iterTxt << std::endl;

  // Wait for keystroke
  _getch();
  */

  return 0;
}

The problem is that when it finds a filename with Arabic text, it doesn’t display it correctly; It just shows "?????????????????????". I need the file path to send to a server. Is there anyway to solve the problem?

UPDATE:
I have revised the code.

The new code is as follows:

#include <boost/filesystem.hpp>
namespace bf = boost::filesystem;
#include <string>
#include <iostream>
using namespace std;
string e_string = "Error";
int main()
{
    string fileName = "C:\\حم.txt";
    string destination = "D:\\log.txt" ;
    bf::path fileCopied(fileName);
    bf::path fileCopiedDestination (destination);
    if (!bf::exists(fileCopied) )
    {
        cerr << e_string;
    }
     if (!bf::exists(fileCopiedDestination))
        {
        cerr << e_string;
    }
    try
    {
        bf::copy_file(fileCopied,fileCopiedDestination);
    }
    catch(std::exception e)
    {
        cout << e.what();
    }
}

This code compiles, but I get this error:

ErrorErrorstd::exception

Also, the copying process fails.

I tried to change this line:
string fileName = "C:\\حم.txt";

to:
string fileName = "C:\\??.txt";

but in vain.

How can I copy this file?

Answer 1

You’re “just a beginner”, so I strongly suggest this: download Boost and use Boost.Filesystem. It has a class boost::filesystem::path that represents a filename. It’s all you should use for dealing with filenames. Use the Boost.Filesystem functions for searching for files, and use the boost::filesystem::path object and the special iostreams in Boost.Filesystem to open those files.

Printing Unicode-encoded strings to the console window is… not easily done in Windows.