Yes.
Lua 5.0.2 Copyright (C) 1994-2004 Tecgraf, PUC-Rio
print(string.format("%s",[[fn"ord]]));
fn"ord
print(string.format("%q",[[fn"ord]]));
"fn"ord"
(I used [[]] quotes instead of "" for the sake of clarity. They allow any charater, including ", to be entered literally into a string.)