vi_NOPTS
extern struct option options[vi_NOPTS + 1];
struct option options[vi_NOPTS + 1] = {
for (op = options; op < &options[vi_NOPTS]; op++)
int incr = (vi_NOPTS + 2) / 3;
if (&op[2*incr] < &options[vi_NOPTS]) {
for (op = options; op < &options[vi_NOPTS]; op++) {