sS replaceWords_tokensAndCamelCase(SS map, S s) {
  LS tok = tok_splitCamelCase(javaTok(s));
  for (int i = 1; i < l(tok); i += 2) {
    S t = tok.get(i);
    S x = map.get(t);
    if (x != null)
      tok.set(i, transferCase(t, x));
  }
  ret join(tok);
}