Just need to clarify...

[tazntex]

In the PBP manual under the REPEAT..UNTIL command it shows this example:
i = 0
REPEAT
PORTB.0[i] = 0
i = i + 1
UNTIL i > 7

I understand how it repeats until i is equal to 7 then moves on but what does the [i] in PORTB.0[i] do? That is the only example that I can find in the manual, other than where serial and the [] Versus is shown.

Thanks