Function normalize_path

src/base/path.cpp:170–175

}

std::string normalize_path(const std::string& filename)
{
  std::string fn = base::get_canonical_path(filename);
  fn = base::fix_path_separators(fn);
  return fn;
}

bool has_file_extension(const std::string& filename, const std::string& csv_extensions)
{