// jreplace_multi goes over ins/outs once (doesn't loop)

sbool jreplace_multi(LS tok, LS ins, S out) {
  bool change = false;
  for (S in : ins)
    if (jreplace(tok, in, out))
      change = true;
  ret change;
}

sS jreplace_multi(S s, S... replacements) {
  if (empty(replacements)) ret s;
  LS tok = javaTok(s);
  bool change;
  for (int i = 0; i < l(replacements); i += 2)
    if (jreplace(tok, replacements[i], replacements[i+1]))
      set change;
  ret change ? join(tok) : s;
}

static LS jreplace_multi(LS tok, S... replacements) {
  for (int i = 0; i < l(replacements); i += 2)
    jreplace(tok, replacements[i], replacements[i+1]);
  ret tok;
}