hldy_xcx/node_modules/@parcel/watcher/src/windows/win_utils.cc

45 lines
1.2 KiB
C++

#include "./win_utils.hh"
std::wstring utf8ToUtf16(std::string input) {
unsigned int len = MultiByteToWideChar(CP_UTF8, 0, input.c_str(), -1, NULL, 0);
WCHAR *output = new WCHAR[len];
MultiByteToWideChar(CP_UTF8, 0, input.c_str(), -1, output, len);
std::wstring res(output);
delete output;
return res;
}
std::string utf16ToUtf8(const WCHAR *input, size_t length) {
unsigned int len = WideCharToMultiByte(CP_UTF8, 0, input, length, NULL, 0, NULL, NULL);
char *output = new char[len + 1];
WideCharToMultiByte(CP_UTF8, 0, input, length, output, len, NULL, NULL);
output[len] = '\0';
std::string res(output);
delete output;
return res;
}
std::string normalizePath(std::string path) {
// Prevent truncation to MAX_PATH characters by adding the \\?\ prefix
std::wstring p = utf8ToUtf16("\\\\?\\" + path);
// Get the required length for the output
unsigned int len = GetLongPathNameW(p.data(), NULL, 0);
if (!len) {
return path;
}
// Allocate output array and get long path
WCHAR *output = new WCHAR[len];
len = GetLongPathNameW(p.data(), output, len);
if (!len) {
delete output;
return path;
}
// Convert back to utf8
std::string res = utf16ToUtf8(output + 4, len - 4);
delete output;
return res;
}