Function getFileExtension

src/mydefs.cpp:484–494

Returns the extension of the file

/// Returns the extension of the file
std::string getFileExtension(const char* filepath) {
  if (!filepath) return "";

  const char* dot = strrchr(filepath, '.');
  if (!dot || *(dot + 1) == '\0') return "";  // No point or nothing after that

  std::string ext(dot + 1);
  // Optional: in lowercase letters
  for (char& c : ext) c = std::tolower(static_cast<unsigned char>(c));
  return ext;
}

// checks if given file is a las/laz file
bool IsLasLazFile(std::string fn) {