Function utf8_to_wide

src/system/process/process_win32.cpp:42–65

namespace {

std::wstring utf8_to_wide(const std::string& text) {
    if (text.empty()) {
        return {};
    }

    const auto size = MultiByteToWideChar(CP_UTF8,
                                          MB_ERR_INVALID_CHARS,
                                          text.data(),
                                          static_cast<int>(text.size()),
                                          nullptr,
                                          0);
    if (size <= 0) {
        return {};
    }

    std::wstring wide(static_cast<size_t>(size), L'\0');
    MultiByteToWideChar(CP_UTF8,
                        MB_ERR_INVALID_CHARS,
                        text.data(),
                        static_cast<int>(text.size()),
                        wide.data(),
                        size);
    return wide;
}

std::wstring quote_windows_arg(const std::wstring& arg) {
    if (arg.empty()) {