/*
 *  call-seq:
 *     query.to_s -> string
 *
 *  Return a string representation of the query. Most of the time, passing
 *  this string through the Query parser will give you the exact Query you
 *  began with. This can be a good way to explore how the QueryParser works.
 */
static VALUE
frt_q_to_s(int argc, VALUE *argv, VALUE self)
{
    GET_Q();
    VALUE rstr, rfield;
    char *str, *field = "";
    if (rb_scan_args(argc, argv, "01", &rfield)) {
        field = frt_field(rfield);
    }
    str = q->to_s(q, field);
    rstr = rb_str_new2(str);
    free(str);
    return rstr;
}