!7

p {
  for (S s : ll("#", "a&b", "\"", "\\", "a b", "aa\nbb", "\r", "\t"))
    assertTrue(containsUnsafePlatformCmdLineChar(printStruct(s)));
  for (S s : ll("bla", ""))
    assertFalse(containsUnsafePlatformCmdLineChar(printStruct(s)));
  print("OK");
}