!747

m {
  p {
    S s = smartJoin(args);
    print(s);
    new Matches m;
    int renames = 0;
    if (match3("rename * to * in *", s, m)) {
      S in = unquote(m.m[0]), out = unquote(m.m[1]), f = unquote(m.m[2]);
      print("Renaming " + quote(in) + " to " + quote(out) + " in " + f);
      L<S> tok = javaTok(loadTextFile(f));
      for (int i = 1; i < tok.size(); i += 2) {
        if (tok.get(i).equals(in)) {
          tok.set(i, out);
          ++renames;
        }
      }
      saveTextFile(f, join(tok));
      print("Done, " + renames + " rename(s).");
    } else
      print("?");
  }
}