-
-If \fIch\fR is a tab, newline, or backspace, the cursor is moved appropriately
-within the window. Backspace moves the cursor one character left; at the left
-edge of a window it does nothing. Newline does a \fBclrtoeol\fR, then moves
-the cursor to the window left margin on the next line, scrolling the window if
-on the last line). Tabs are considered to be at every eighth column.
-
+.PP
+If \fIch\fR is a tab, newline, or backspace,
+the cursor is moved appropriately within the window.
+Backspace moves the cursor one character left; at the left
+edge of a window it does nothing.
+Newline does a \fBclrtoeol\fR,
+then moves the cursor to the window left margin on the next line,
+scrolling the window if on the last line.
+Tabs are considered to be at every eighth column.
+The tab interval may be altered by setting the \fBTABSIZE\fR variable.
+.PP