Function CurlCompatFileURL

Source/cmFileCommand.cxx:1702–1710

using cmFileCommandVectorOfChar = std::vector<char>;

std::string CurlCompatFileURL(std::string url)
{
  if (cmHasLiteralPrefix(url, "file://")) {
    // libcurl 7.77 and below accidentally allowed spaces in file:// URLs,
    // which CMake has long accepted as a result.  Explicitly encode spaces.
    cmSystemTools::ReplaceString(url, " ", "%20");
  }
  return url;
}

size_t cmWriteToFileCallback(void* ptr, size_t size, size_t nmemb, void* data)
{