.^b HF 1
.^b fh 0
.^b NH
.\"-----------------
.de r
.ie \\n(.$=0 .ft R
.el \\fR\\$1\\fP\\$2
..
.\"-----------------
.de i
.ie \\n(.$=0 .ft I
.el \\fI\\$1\\fP\\$2
..
.\"-----------------
.de b
.ie \\n(.$=0 .ft B
.el \\fB\\$1\\fP\\$2
..
.\"-----------------
.de UX
\\$2UNIX\\$1
..
.\"-----------------
.de DA
.ds DY "\\$1 \\$2 \\$3
.\" keep trailing spaces out of CF
.if \\n(.$=1 .ds CF "\\$1
.if \\n(.$=2 .ds CF "\\$1 \\$2
.if \\n(.$>2 .ds CF "\\$1 \\$2 \\$3
..
.\"-----------------
.de ND
.\" it's our default, ignore it
..
.\"-----------------
.de TL
.rs
.sp 5
.ft B
.ce 9999
..
.\"-----------------
.de AU
.sp 2
.ft R
..
.\"-----------------
.de AI
.sp
.ft R
..
.\"-----------------
.de AB
.sp 2
.ce 0
.ll -7n
.in +7n
..
.\"-----------------
.de AE
.sp
.ll
.in
..
.\" common initialization for headers and paragraphs:  .In need extraspace
.de In
.ne \\$1
.sp \\n(Tsu
.nr Ts 0
.ie \\n(.$>1 .nr iN \\$2v
.el .nr iN 0
.sp \\n(psu+\\n(iNu
.ce 0
.ft R
.in 0
.ti 0
.in \\n(inu
.ll \\n(LLu
.ns
.fi
..
.\"-----------------
.de uh
.\" unnumbered section head
.nr in 0
.In 6 1
.ie \\n(.$=0 .ft B
.el \\fB\\$1\\fP\\$2
..
.\"-----------------
.de sh
.\" numbered section head
.nr in 0
.In 6 1
.ft B
.\" punt to awk code to get the header numbering right
.nH \\$1
.\" and pick up the result
\&\\*(Nh \\$2
.ft R
..
.\"-----------------
.de lp
.\" left-blocked paragraph
.In 4
..
.\"-----------------
.de pp
.\" paragraph, first line indented
.In 4
.ti \\n(piu
..
.\"-----------------
.de tp
.In 4
.if \\n(.$>0 .nr tp \\$1n
.in \\n(inu+\\n(tpu
.ti 0-\\n(tpu
.\" .it 1 tP
..
.\"-----------------
.de ip
.\" indented paragraph
.ie \\n(.$>1 .tp "\\$2"
.el .tp 4n
\&\\$1
..
.\"-----------------
.de np
.\" numbered paragraph
.nr $p +1			\" increment paragraph number
.ip (\n($p)
..
.\"-----------------
.de bu
.\" bulleted paragraph
.ip \(bu
..
.\"-----------------
.de (q
.\" begin major quote
.nr in +5n
.nr LL -5n
.In 4
..
.\"-----------------
.de )q
.\" end major quote
.sp
.nr in -5n
.nr LL +5n
.In 4
..
.\"-----------------
.de (l
.\" begin list
.In 5
.if '\\$1'C' .ce 9999
.if '\\$1'' .in +5n
.if '\\$1'L' .in 0
.nf
..
.\"-----------------
.de )l
.\" end list
.In 3
.sp
.rs
..
.\"-----------------
.de u
\&\\fI$1\\fP
..
.\"-----------------
.de sm
..
.\"-----------------
.\" exdented paragraph macro borrowed from Berkeley -ms
.de XP	
.lp
.in \\n(piu
.ti
..
.\"-----------------
.\" the -ms accent strings
.ds ' "'\b
.ds ` "`\b
.ds : ":\b
.ds ^ "^\b
.ds ~ "~\b
.ds C "v\b
.ds , ",\b
.\" post-title spacing (set to 4v if using .TL macro)
.nr Ts 0v
.\" and parameter setup
.nr LL 6i
.ll \n(LLu
.nr ps 0.3v
.nr pi 5n