examples/function_varargs.av

## examples/function_varargs.av
## require aviatorscript >= 5.2

fn join(sep, &args) {
  let s = "";
  let is_first = true;
  for arg in args {
    if is_first {
      s = s + arg;
      is_first = false;
    }else {
      s = s + sep + arg;
    }
  }

  return s;
}

p(join(" ", "a", "b", "c"));
p(join(",", "a", "b", "c", "d"));
p(join(",", "a"));