Troff question

[Doug Gwyn]

In article <1235 at sjfc.UUCP> ggww at sjfc.UUCP (Gerry Wildenberg) writes:
>A friend would like to do the following. He needs to be able to
>specify to troff the exact lines to be printed (i.e. no filling or at
>least no filling that borrows from the next line ) but he wants troff
>to left and right adjust (presumably by adjusting the spacing between
>words).

.nf

Surely the manual tells you this?