// 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;

}