List Files In the folder

#include <windows.h>
#include <string>
#include <vector>
#include <stack>
#include <iostream>
#include <map>
#include <regex>

using namespace std;

bool ListFiles(wstring path, wstring mask, vector<wstring>& files) {
	HANDLE hFind = INVALID_HANDLE_VALUE;
	WIN32_FIND_DATA ffd;
	wstring spec;
	stack<wstring> directories;

	directories.push(path);
	files.clear();

	while (!directories.empty()) {
		path = directories.top();
		spec = path + L"\\" + mask;
		directories.pop();

		hFind = FindFirstFile(spec.c_str(), &ffd);
		if (hFind == INVALID_HANDLE_VALUE)  {
			return false;
		}

		do {
			if (wcscmp(ffd.cFileName, L".") != 0 &&
				wcscmp(ffd.cFileName, L"..") != 0) {
				if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
					directories.push(path + L"\\" + ffd.cFileName);
				}
				else {
					files.push_back(path + L"\\" + ffd.cFileName);
				}
			}
		} while (FindNextFile(hFind, &ffd) != 0);

		if (GetLastError() != ERROR_NO_MORE_FILES) {
			FindClose(hFind);
			return false;
		}

		FindClose(hFind);
		hFind = INVALID_HANDLE_VALUE;
	}

	return true;
}

bool ListFiles(wstring path, wstring mask, map<int,wstring>& files) {
	HANDLE hFind = INVALID_HANDLE_VALUE;
	WIN32_FIND_DATA ffd;
	wstring spec;
	stack<wstring> directories;

	directories.push(path);
	files.clear();

	

	while (!directories.empty()) {
		path = directories.top();
		spec = path + L"\\" + mask;
		directories.pop();

		hFind = FindFirstFile(spec.c_str(), &ffd);
		if (hFind == INVALID_HANDLE_VALUE)  {
			return false;
		}

		do {
			if (wcscmp(ffd.cFileName, L".") != 0 &&
				wcscmp(ffd.cFileName, L"..") != 0) {
				if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
					directories.push(path + L"\\" + ffd.cFileName);
				}
				else {

					try {
						wsmatch wideMatch;
						wregex  fileRegex(L"^.*?(\\d{1,8})\\.tiff?$");//(^.*\\D)?\\d{1,8}.tiff$");


						wstring target(ffd.cFileName);
						if (regex_match(target.cbegin(), target.cend(), wideMatch, fileRegex))
						{
							std::wstring fileSeq = wideMatch[1].str();
							cout << stoi(fileSeq) << endl;
						}
						else
						{
							wcout <<"can't match :"<< wideMatch.str() << endl;
						}

					

						files.insert({ 0, path + L"\\" + ffd.cFileName });
					}
					catch (std::regex_error& e) {
						if (e.code() == std::regex_constants::error_badrepeat)
							std::cerr << "Repeat was not preceded by a valid regular expression.\n";
						else if (e.code() == std::regex_constants::error_syntax)
							std::cerr << "syntax error" << endl;
						else std::cerr << "Some other regex exception happened.\n";
					}
				}
			}
		} while (FindNextFile(hFind, &ffd) != 0);

		if (GetLastError() != ERROR_NO_MORE_FILES) {

			FindClose(hFind);
			return false;
		}
		
		
		FindClose(hFind);
		hFind = INVALID_HANDLE_VALUE;
	}

	return true;
}



int main(int argc, char* argv[])
{
	/*vector<wstring> files;

	if (ListFiles(L"F:", L"*", files)) {
		for (vector<wstring>::iterator it = files.begin();
			it != files.end();
			++it) {
			wcout << it->c_str() << endl;
		}
	}*/

	map<int, wstring> files;
	if (ListFiles(L"E:\\Raw_Lw3\\LW3-1-4-2mm", L"*", files))
	{

	}

	getchar();
	return 0;
}