[Ermanhaut]

pawn Code:

new string[32];
tryagain:
format(string, sizeof string, "veiculos/%s.ini", generateUniquePlaque());
if(!DOF2_FileExists(string)) {
  // Salvar dados;
} else goto tryagain;

generateUniquePlaque() {
  static str[10];
  format(str, sizeof str, "%s%s%s-%04d", randomChar(), randomChar(), randomChar(), random(10000));
  return str;
}

randomChar() {
  static c[2];
  format(c, 2, "%c", random(26) + 'A');
  return c;
}