.ad [
c
]
Adjust output lines according to format
c
. Fill mode must
be on (see
.fi
).
With no argument, return to previous adjustment.
The current adjustment mode is
stored in register
.j
, with the following values: 0=l, 1=b, 3=c,
5=r (see
.na
).
-
b
-
Lines are justified.
-
n
-
Lines are justified.
-
c
-
Lines are centered.
-
l
-
Lines are flush left.
-
r
-
Lines are flush right.