'	# Extra manual macros by dma
'	# Revised slightly by ape
'	# begin a display
.de DS
.sp
.nf
.RS
..
'	# end a display
.de DE
.fi
.sp
.RE
..
'	# a paragraph without a preceding blank line
.de Pp
.br
.ns
.PP
..
'	# a tagged paragraph without a preceding blank line
.de Tp
.br
.ns
.TP \\$1
..