!752

static L<S> themap = litlist(
  "mine", "yours",
  "my", "your",
  "you are", "i am",
  "are you", "am i",
  "for me", "for you",
  "against me", "against you",
  "with me", "with you",
  "without me", "without you",
  "i", "you",
  "me", "you"
);

p {
  makeBot("Switcheroo");
}

answer {
  if (matchStart("switcheroo", s, m)) {
    S rest = m.rest();
    ret switcheroo(rest);
  }
}

static S switcheroo(S s) {
  L<S> tok = javaTok(s);
  for (int i = 1; i < l(tok); i += 2) {
    for (int j = 0; j < l(themap); j += 2) {
      S x = themap.get(j), y = themap.get(j+1);
      L<S> tokx = javaTok(x), toky = javaTok(y);
      matchReplace(tok, i, tokx, toky);
      matchReplace(tok, i, toky, tokx);
    }
  }
  ret join(tok);
}

static void matchReplace(L<S> tok, int i, L<S> tokx, L<S> toky) {
  //printFormat("Matching * * *", i, get(tok, i), tokx);
  if (tokRegionMatch(tok, i, tokx)) {
    printFormat("Replacing * *", tokx, toky);
    for (int j = 0; j*2+1 < l(tokx); j++)
      tok.set(i+j*2, "*" + toky.get(1+j*2));
  }
}

static boolean tokRegionMatch(L<S> tok, int i, L<S> tokx) {
  for (int j = 0; j*2+1 < l(tokx); j++)
    if (!eqic(get(tok, i+j*2), get(tokx, 1+j*2)))
      ret false;
  ret true;
}