-The \fBfilter\fR routine, if used, must be called before \fBinitscr\fR or
-\fBnewterm\fR are called.
-The effect is that, during those calls, \fBLINES\fR
-is set to 1; the capabilities \fBclear\fR, \fBcup\fR, \fBcud\fR, \fBcud1\fR,
-\fBcuu1\fR, \fBcuu\fR, \fBvpa\fR are disabled; and the \fBhome\fR string is
-set to the value of \fBcr\fR.
+The \fBfilter\fP routine, if used, must be called before \fBinitscr\fP or
+\fBnewterm\fP are called.
+Calling \fBfilter\fP causes these changes in initialization:
+.bP
+\fBLINES\fP is set to 1;
+.bP
+the capabilities
+\fBclear\fP,
+\fBcud1\fP,
+\fBcud\fP,
+\fBcup\fP,
+\fBcuu1\fP,
+\fBcuu\fP,
+\fBvpa\fP
+are disabled;
+.bP
+the capability \fBed\fP is disabled if \fBbce\fP is set;
+.bP
+and the \fBhome\fP string is set to the value of \fBcr\fP.