.ig

Copyright (C) 1991-2023 Free Software Foundation, Inc.
mm is written by Jörgen Hägg <jh@axis.com>

mm is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or
(at your option) any later version.

mm is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Please submit bug reports using groff's 'BUG-REPORT' file to
http://savannah.gnu.org/bugs/?group=groff.

Naming convention adapted from groff ms.
Local names	module*name
Extern names	module@name
Env.var		environ:name
Index		array!index
..
.if !\n(.g \
.  ab groff mm macros require groff extensions; aborting
.
.if \n(.C \
.  ab groff mm macros do not work in compatibility mode; aborting
.
.ds @mm m.tmac\"
.
.if (\n[.x]\n[.y] < 123) \{\
.  ds mm-msg \*[@mm]: groff mm macros require groff 1.23 or later,\"
.  as mm-msg " but found groff \n[.x].\n[.y]; aborting\"
.  ab \*[mm-msg]
.\}
.
.if d PH .nx
.
.mso devtag.tmac
.\" ######## init #######
.\"	create table of contents entry for headings of level <= Cl
.nr Cl 2
.\"	Eject page between LIST OF XXXX if Cp == 0
.nr Cp 0
.\"	Debugflag
.if !r D .nr D 0
.\"	Eject after floating display is output [0:1]
.nr De 0
.\"	Floating keep output [0;5]
.nr Df 5
.\"	space before and after display if == 1 [0:1]
.nr Ds 1
.\"	eject page before headings of level <= Ej
.nr Ej 0
.\"	Equation label adjust 0=left, 1=right
.nr Eq 0
.\"	Bullet string (for .BL)
.ie n .ds BU \[bu]
.el .ds BU \s-2\[bu]\s0
.\"	Em dash string
.ie n .ds EM " --
.el .ds EM \[em]
.\"	Footnote spacing
.nr Fs 1
.\"	H1-H7	heading counters
.nr H1 0 1
.nr H2 0 1
.nr H3 0 1
.nr H4 0 1
.nr H5 0 1
.nr H6 0 1
.nr H7 0 1
.nr H8 0 1
.nr H9 0 1
.nr H10 0 1
.nr H11 0 1
.nr H12 0 1
.nr H13 0 1
.nr H14 0 1
.\"	break after headings of level <= Hb
.nr Hb 2
.\"	center headings of level <= Hc
.nr Hc 0
.\"	header format
.ds HF 2 2 2 2 2 2 2 2 2 2 2 2 2 2
.\"	heading temp. indent [0:2]
.\"	0 -> 0 indent, left margin
.\"	1 -> indent to right , like .P 1
.\"	2 -> indent to line up with text part of preceding heading
.nr Hi 1
.\"	header pointsize
.ds HP 0 0 0 0 0 0 0 0 0 0 0 0 0 0
.\"	put vertical space of \n[Hss] after headings of level <= Hs
.nr Hs 2
.\"	heading numbering type
.\"	0 -> multiple (1.1.1 ...)
.\"	1 -> single
.nr Ht 0
.\"	Unnumbered heading level
.nr Hu 2
.\"	hyphenation in body
.\"	0 -> no hyphenation
.\"	1 -> hyphenation 14 on
.nr Hy 0
.\"	text for toc, selfexplanatory. Look in the new variable section
.ds Lf LIST OF FIGURES
.nr Lf 1
.ds Lt LIST OF TABLES
.nr Lt 1
.ds Lx LIST OF EXHIBITS
.nr Lx 1
.ds Le LIST OF EQUATIONS
.nr Le 0
.\"	List indentation in ens, used by .AL
.nr Li 6
.\"	put vertical space before list items of nesting level <= Ls
.nr Ls 99 \" TODO: use \n[.R]; see Savannah #63587
.\"	Numbering style [0:5]
.if !r N .nr N 0
.\"	numbered paragraphs
.\"	0 == not numbered
.\"	1 == numbered in first level headings.
.nr Np 0
.\"	Format of figure,table,exhibit,equation titles.
.\"	0= ". ", 1=" - "
.nr Of 0
.\"	Table of contents page numbering style
.nr Oc 0
.\"	Page-number, normally same as %.
.nr P 0
.\"	paragraph indentation in ens
.nr Pi 5
.\"	paragraph spacing
.nr Ps 1
.\"	paragraph type
.\"	0 == left-justified
.\"	1 == indented .P
.\"	2 == indented .P except after .H, .DE or .LE.
.nr Pt 0
.\"	Reference title
.ds Rp REFERENCES
.\"	Reference page eject status
.nr Rpe 0
.\"	display indentation in ens
.nr Si 5
.\"
.\" Current state of TOC, empty outside TC, inside
.\" it will be set to co,fg,tb,ec,ex or ap.
.ds Tcst
.\"
.ie t .ds Sm \v'-.4m'\s-3SM\s0\v'.4m'\"
.el \{\
.	ie c \[u2120] .ds Sm \[u2120]\"
.	el            .ds Sm (SM)\"
.\}
.
.ie t .ds Tm \v'-.4m'\s-3TM\s0\v'.4m'\"
.el \{\
.	ie c \[tm] .ds Tm \[tm]\"
.	el         .ds Tm (TM)\"
.\}
.\"
.\"---------------------------------------------
.\"	Internal global variables
.\"
.\" This is for cover macro .MT
.\" .ds @country
.\"
.nr @copy_type 0
.if r C .nr @copy_type \n[C]
.\" >0 if Subject/Date/From should be bold, roman otherwise
.ie n .ds @sdf_font R
.el .ds @sdf_font B
.if \n[@copy_type]=4 \{\
.	ls 2
.	nr Pi 10
.	nr Pt 1
.\}
.\"
.\"
.if r E \{\
.	ie \n[E] .ds @sdf_font B
.	el .ds @sdf_font R
.\}
.\"
.\"	Set the type size and vertical spacing.  If given on the command
.\"	line, these have already been converted to basic units.
.if !r S .nr S 10
.ie (\n[S] >= 1000) .ps \n[S]z/1000u
.el                 .ps \n[S]
.nr *vs-default \n[.ps]*120/100
.if !r V .nr V \n[*vs-default]
.ie (\n[V] >= 1000) .vs \n[V]p/1000u
.el                 .vs \n[V]
.rm *vs-default
.\"
.nr @ps \n[.ps]
.nr @vs \n[.v]
.if \n[D]>1 .tm @ps=\n[@ps], @vs=\n[@vs]
.if \n[D]>3 .tm INIT: l:\n[.l] p:\n[.p] o:\n[.o]
.\"
.\"	page length
.if r L \{\
.	pl \n[L]u
.\}
.nr @pl \n[.p]
.\"
.\"	line length
.ie r W \{\
.	ll \n[W]u
.\}
.el .ll 6i
.nr @ll \n[.l]
.nr @cur-ll \n[@ll]
.lt \n[@ll]u
.\"
.\"	page offset
.ie r O .po \n[O]u
.el \{\
.	ie n .po .75i
.	el .po .963i
.\}
.\"
.nr @po \n[.o]
.\"
.\" non-zero if escape mechanism is turned off. Used by VERBON/OFF
.nr @verbose-flag 0
.\"---------------------------------------------
.\"	New variables
.\"
.\" Appendix name
.ds App APPENDIX
.\" print appendixheader, 0 == don't
.nr Aph 1
.\"
.\" Current appendix text
.ds Apptext
.\" Controls the space before and after static displays if defined.
.\" Lsp is used otherwise
.\" .nr Dsp 1v
.\"
.\" Add a dot after level one heading number if >0
.nr H1dot 1
.\"
.\" put vertical space of \n[Hps2] before headings of level <= Hps
.nr Hps 1
.\"
.\" amount of vertical space before headings when level > Hps
.nr Hps1 0.5v
.if n .nr Hps1 1v
.\"
.\" amount of vertical space before headings when level <= Hps
.nr Hps2 1v
.if n .nr Hps2 2v
.\"
.\" Hss is the number of lines (Lsp) after the header.
.nr Hss 1
.\"
.\" H1txt will be updated by .H and .HU, containing the heading text.
.\" Will also be updated in table of contents & friends
.\"
.ds H1txt
.\"
.\" header text for the index
.ds Index INDEX
.\" command to sort the index
.ds Indcmd sort
.\"
.\" flag for mkindex
.if !r Idxf .nr Idxf 0
.\"	Change these in the national configuration file
.ds Lifg Figure
.ds Litb TABLE
.ds Liex Exhibit
.ds Liec Equation
.ds Licon CONTENTS
.\" Flag for space between mark and prefix 1==space, 0==no space
.\" Can also be controlled by using '.LI mark 2'
.nr Limsp 1
.\"
.\" Lsp controls the height of an empty line. Normally 0.5v
.\" Normally used for nroff compatibility.
.nr Lsp 0.5v
.if n .nr Lsp 1v
.ds MO1 January
.ds MO2 February
.ds MO3 March
.ds MO4 April
.ds MO5 May
.ds MO6 June
.ds MO7 July
.ds MO8 August
.ds MO9 September
.ds MO10 October
.ds MO11 November
.ds MO12 December
.\" for GETR
.ds Qrf See chapter \\*[Qrfh], page \\*[Qrfp].
.\"
.\" header- and footer-size will only change to the current
.\" if Pgps is > 0.
.nr Pgps 1
.\"
.\" section-page if Sectp > 0
.nr Sectp 0
.if (\n[N]=3):(\n[N]=5) \{\
.	nr Sectp 1
.	nr Ej 1
.\}
.\" section-figure if Sectf > 0
.nr Sectf 0
.if \n[N]=5 .nr Sectf 1
.\"
.\" argument to .nm in .VERBON.
.ds Verbnm 1\"
.\" indent for VERBON
.nr Verbin 5n
.\"
.\" Letter section
.\" Formal closing (.FC)
.ds Letfc Yours very truly,
.\"
.\" Approval line
.ds Letapp APPROVED:
.\" Approval date-string
.ds Letdate Date
.\"
.ds LetCN CONFIDENTIAL\"		Confidential default
.ds LetSA To Whom It May Concern:\"	Salutation default
.ds LetAT ATTENTION:\"			Attention string
.ds LetSJ SUBJECT:\"			Subject string
.ds LetRN In reference to:\"		Reference string
.\"
.\" Copy to (.NS)
.ds Letnsdef 0
.ds Letns!copy Copy \" space!
.ds Letns!to " to
.ds Letns!0 Copy to
.ds Letns!1 Copy (with att.\&) to
.ds Letns!2 Copy (without att.\&) to
.ds Letns!3 Att.
.ds Letns!4 Atts.
.ds Letns!5 Enc.
.ds Letns!6 Encs.
.ds Letns!7 Under separate cover
.ds Letns!8 Letter to
.ds Letns!9 Memorandum to
.ds Letns!10 Copy (with atts.\&) to
.ds Letns!11 Copy (without atts.\&) to
.ds Letns!12 Abstract Only to
.ds Letns!13 Complete Memorandum to
.ds Letns!14 CC:
.\"
.\" Text printed below the footer. Controlled by @copy_type (C).
.ds Pg_type!0
.ds Pg_type!1 OFFICIAL FILE COPY
.ds Pg_type!2 DATE FILE COPY
.ds Pg_type!3 D\ R\ A\ F\ T
.ds Pg_type!4 D\ R\ A\ F\ T
.\" Max lines in return address
.nr Letwam 14
.\"--------------------------
.\"	test for mgm macro. This can be used if the text must test
.\"	what macros is used.
.nr .mgm 1
.\"
.\" Due to security problems with groff I had to rewrite
.\" the reference system. It's not as elegant as before, you
.\" have to run groff with '-z -rRef=1' and put stderr into the filename
.\" for .INITR
.\"
.\" Output references to stderr if non-zero
.ie !r Ref \{\
.	nr Ref 0
.\}
.el .warn 0
.\"
.\"---------------------------------------------
.\" set local variables.
.ie d @country .msoquiet mm/\*[@country]_locale
.el .msoquiet mm/locale
.\"---------------------------------------------
.\" ####### module init ######
.\"	reset all things
.\" XXX: Resets .cu and .ul but _not_ .ce or .rj.
.de init@reset
.ie \\n[misc@adjust] 'ad
.el 'na
.ie \\n[Hy] 'hy 14
.el 'nh
'in 0
'ti 0
.ps \\n[@ps]u
.vs \\n[@vs]u
..
.de @warning
.tm \\*[@mm]:\\n[.F]:\\n[.c]: warning: \\$*
.if \\n[D] .backtrace
..
.\" All errors are fatal.
.de @error
.tm \\*[@mm]:\\n[.F]:\\n[.c]: error: \\$*
.if \\n[D] .backtrace
.ab
..
.
.de @abort
.tm \\*[@mm]:\\n[.F]:\\n[.c]: internal error: \\$*
.backtrace
.ab
..
.de misc@toupper
.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ
.br
\\$1
.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz
.br
..
.\" ####### module debug #################################
.de debug
'tm \\$1:\\n[.F]:\\n[c.] ll=\\n[.l] vs=\\n[.v] ps=\\n[.s],\\n[.ps] \
in=\\n[.i] fi=\\n[.u] .d=\\n[.d] nl=\\n[nl] pg=\\n[%]
..
.de debug-all
.nr debug*n 1n
.nr debug*m 1m
'tm \\$1:\\n[.F]:\\n[c.] ll=\\n[.l] vs=\\n[.v] ps=\\n[.s] in=\\n[.i]\
 ad=\\n[.j] fi=\\n[.u] pl=\\n[.p] page=\\n[%] .o=\\n[.o]
'tm _______ .d=\\n[.d] .f=\\n[.f] .h=\\n[.h] .k=\\n[.k] .n=\\n[.n]\
 .p=\\n[.p] .t=\\n[.t] .z=\\n[.z] nl=\\n[nl] dn=\\n[dn] n=\\n[debug*n]
..
.\" ####### module par #################################
.nr par*indentation-eligible 1		\" indent following P if Pt=2
.nr par@suppress-indentation 0
.nr hd*last-pos -1
.nr hd*last-hsize -1
.nr par*number 0 1
.af par*number 01
.nr par*number2 0 1
.af par*number2 01
.nr par*num-count 0 1
.af par*num-count 01
.\"	reset numbered paragraphs, arg1 = headerlevel
.de par@reset-num
.if \\$1<3 .nr par*num-count 0
.if (\\$1=1)&(\\n[Np]=1) .nr par*number 0
..
.\"------------
.\" paragraph
.de P
.if \\n[.$] \{\
.	ie !\B'\\$1' \{\
.		@warning \\$0: expected numeric argument, got '\\$1'
.		shift
.	\}
.	el .if (\\$1 > 1) \
.		@warning \\$0: ignoring unsupported paragraph type \
'\\$1'
.\}
.\"	skip P if previous heading
.if \\n[D]>2 \{\
.	tm Paragraph nl=\\n[nl], last=\\n[hd*last-pos]
.	tm Paragraph .k=\\n[.k], hsize=\\n[hd*last-hsize]
.\}
.nr par*indentation-eligible 1-\\n[par@suppress-indentation]
.par@doit \\$*
.if \\n[Np] \\n[H1].\\n+[par*number]\ \ \c
..
.\"------------
.de nP
.if \\n[D]>2 \{\
.	tm Paragraph nl=\\n[nl], last=\\n[hd*last-pos]
.	tm Paragraph .k=\\n[.k], hsize=\\n[hd*last-hsize]
.\}
.\" A first-line indentation is meaningless for a numbered paragraph.
.nr par*indentation-eligible 0
.par@doit
\\n[H2].\\n+[par*number2]\ \ \c
..
.\"------------
.de par@doit
.SP (u;\\n[Ps]*\\n[Lsp])
.nr par*do-indent 0
.ie \\n[.$] \{\
.	if \\$1=1 .nr par*do-indent 1
.\}
.el \{\
.	if \\n[Pt]=1 .nr par*do-indent 1
.	if (\\n[Pt]=2)&\\n[par*indentation-eligible] \
.		nr par*do-indent 1
.\}
.if \\n[par*do-indent] .ti +\\n[Pi]n
.rr par*do-indent
.nr par@suppress-indentation 0
..
.\" ####### module line #######################################
.de SP
.br
.if !r line*lp\\n[.z] .nr line*lp\\n[.z] 0
.if !r line*ac\\n[.z] .nr line*ac\\n[.z] 0
.ie \\n[.$] .nr line*temp (v;\\$1)
.el .nr line*temp 1v
.\"
.ie \\n[line*lp\\n[.z]]=\\n[.d] \{\
.	\" go here if no output since the last .SP
.	nr line*output \\n[line*temp]-\\n[line*ac\\n[.z]]
.	if \\n[line*output]<0 .nr line*output 0
.	nr line*ac\\n[.z] +\\n[line*output]
.\}
.el \{\
.	nr line*ac\\n[.z] \\n[line*temp]
.	nr line*output \\n[line*temp]
.	\" no extra space in the beginning of a page
.	if (\\n[.d]<0):(\\n[pg*head-mark]=\\n[.d]) .nr line*output 0
.\}
.if \\n[line*output] .sp \\n[line*output]u
.nr line*lp\\n[.z] \\n[.d]
..
.\" ######## module misc ###############
.\" XXX: This register value is meaningless.
.\"   .ad b
.\"   .nr misc@adjust \n[.j]
.\" might be better...
.nr misc@adjust 14
.de SA
.if \\n[.$] \{\
.	if ((\\$1 < 0) : (\\$1 > 1)) .@error \\$0: invalid argument \
'\\$1'
.\" XXX: ...then...
.\"   .ad l
.\"   .nr misc@adjust \\n[.j]
.	nr misc@adjust 0\\$1
.\}
.\" XXX: ...and finally an unconditional.
.\"   .ad \\n[.j]
.ie \\n[misc@adjust] 'ad
.el 'na
..
.\"-------------
.\" switch environment, keep all important settings.
.de misc@ev-keep
.nr misc*ll \\n[.l]
.ds misc*fam \\n[.fam]
.ev \\$1
.ll \\n[misc*ll]u
.lt \\n[misc*ll]u
.fam \\*[misc*fam]
..
.\"-------------
.\" .misc@push stackname value
.de misc@push
.ie d misc*st-\\$1 .ds misc*st-\\$1 \\$2 \\*[misc*st-\\$1]
.el .ds misc*st-\\$1 \\$2
..
.\"-------------
.\" .misc@pop stackname
.\" value returned in the string misc*pop
.de misc@pop
.misc@pop-set misc*st-\\$1 \\*[misc*st-\\$1]
..
.\"-------------
.de misc@pop-set
.ds misc*st-name \\$1
.shift
.if \\n[.$]<1 .@abort stack '\\*[misc*st-name]' empty
.ds misc*pop \\$1
.shift
.ds \\*[misc*st-name] \\$*
..
.\"-------------
.\" .misc@pop-nr stackname varname
.de misc@pop-nr
.misc@pop \\$1
.nr \\$2 0\\*[misc*pop]
..
.\"-------------
.\" .misc@pop-ds stackname varname
.de misc@pop-ds
.misc@pop \\$1
.ds \\$2 \\*[misc*pop]
..
.\"-----------
.\" reset tabs
.de TAB
.ta T 5n
..
.\"-------------
.\" .PGFORM linelength [ pagelength [ pageoffset [1]]]
.de PGFORM
.\" Break here to avoid problems with new linesetting of the previous line.
.\" Hope this doesn't break anything else :-)
.\" Don't break if arg_4 is a '1'.
.if \\n[D]>2 .tm PGFORM: \\$*
.if ''\\$4' .br
.if \\n[D]>3 .tm PGFORM: IN l:\\n[.l] p:\\n[.p] o:\\n[.o]
.ie !''\\$1' \{\
.	ll \\$1
.	nr @ll \\n[.l]
.	nr @cur-ll \\n[@ll]
.	lt \\n[@ll]u
.\}
.el \{\
.	ll \\n[@ll]u
.	lt \\n[@ll]u
.\}
.\"
.ie !''\\$2' \{\
.	pl \\$2
.	nr @pl \\n[.p]
.\}
.el .pl \\n[@pl]u
.\"
.ie !''\\$3' \{\
.	po \\$3
.	nr @po \\n[.o]
.\}
.el .po \\n[@po]u
.if \\n[D]>3 .tm PGFORM: OUT l:\\n[.l] p:\\n[.p] o:\\n[.o]
.if \\n[D]>2 .tm PGFORM: ll=\\n[@ll], pl=\\n[@pl], po=\\n[@po]
'in 0
.pg@move-trap
.if \\n[D]>2 \{\
.	tm Traps:
.	ptr
.\}
..
.\"-------------
.\" .MOVE y [[x] linelength]
.\" move to line y, indent to x
.de MOVE
.if !\\n[.$] \{\
.	@warning \\$0: ignoring; no arguments specified
.	return
.\}
.if \\n[nl]<0 \c
.\" move to Y-pos
.sp |(v;\\$1)
.\" calc linelength
.ie \\n[.$]>2 .nr pg*i (n;\\$3)
.el \{\
.	ie \\n[.$]>1 .nr pg*i (n;\\n[@ll]u-\\$2)
.	el .nr pg*i \\n[@ll]u
.\}
.\" move to X-pos, if any
.if !''\\$2' .po \\$2
.\" set linelength
.ll \\n[pg*i]u
..
.\"-------------
.de SM
.if !\\n[.$] \{\
.	@warning \\$0: ignoring; no arguments specified
.	return
.\}
.if \\n[.$]=1 \s-1\\$1\s0
.if \\n[.$]=2 \s-1\\$1\s0\\$2
.if \\n[.$]=3 \\$1\s-1\\$2\s0\\$3
..
.\"-------------
.nr misc*S-ps \n[@ps]
.nr misc*S-vs \n[@vs]
.nr misc*S-ps1 \n[@ps]
.nr misc*S-vs1 \n[@vs]
.ds misc*a
.ds misc*b
.de S
.ie !\\n[.$] \{\
.	ds misc*a P
.	ds misc*b P
.\}
.el \{\
.	ie \\n[.$]=1 .ds misc*b D
.	el \{\
.		ie \w@\\$2@=0 .ds misc*b C
.		el .ds misc*b \\$2
.	\}
.	ie \w@\\$1@=0 .ds misc*a C
.	el .ds misc*a \\$1
.\}
.\"
.\" set point size
.if !'\\*[misc*a]'C' \{\
.	ie '\\*[misc*a]'P' .ps \\n[misc*S-ps]u
.	el \{\
.		ie '\\*[misc*a]'D' .ps \\n[S]
.		el .ps \\*[misc*a]
.		if \\n[D]>2 .tm S: .ps \\*[misc*a]
.	\}
.\}
.\"
.\" set vertical spacing
.if !'\\*[misc*b]'C' \{\
.	ie '\\*[misc*b]'P' .vs \\n[misc*S-vs]u
.	el \{\
.		ie '\\*[misc*b]'D' .vs \\n[.ps]s+2p
.		el .vs \\*[misc*b]
.		if \\n[D]>2 .tm S: .vs \\*[misc*b]
.	\}
.\}
.nr @ps \\n[.ps]
.nr @psu \\n[.ps]s
.nr @vs \\n[.v]
.nr @vsp \\n[.v]u/1p
.nr @res 1i
.\"
.if \\n[D]>1 \{\
.	tmc "S(\\$*): ma:\\*[misc*a], mb:\\*[misc*b]
.	tm1 " => ps:\\n[.s]p (\\n[@psu]u), vs:\\n[@vsp]p (\\n[@vs]u) (res:\\n[@res])
.\}
.nr misc*S-ps \\n[misc*S-ps1]
.nr misc*S-vs \\n[misc*S-vs1]
.nr misc*S-ps1 \\n[@ps]
.nr misc*S-vs1 \\n[@vs]
.pg@move-trap
..
.\"------------
.de HC
.ev 0
.hc \\$1
.ev
.ev 1
.hc \\$1
.ev
.ev 2
.hc \\$1
.ev
..
.\"------------
.de RD
.di misc*rd
'fl
.rd \\$1\t
.br
.di
.if !''\\$3' \{\
.	di misc*rd2
.	ds \\$3 "\\*[misc*rd]
.	br
.	di
.\}
.if !''\\$2' .rn misc*rd \\$2
.rm misc*rd misc*rd2
..
.\"------------
.\" VERBON [flag [type-size [font]]]
.\"	flag
.\"	bit	function
.\"	0	escape character disablement
.\"	1	add an empty line before verbose text
.\"	2	add an empty line after verbose text
.\"	3	number output lines using Verbnm string for .nm args
.\"	4	indent text by amount in register Verbin
.de VERBON
.br
.nr misc*verb 0\\$1
.if (0\\n[misc*verb]%4)/2 .SP \\n[Lsp]u
.misc@ev-keep misc*verb-ev
.nf
.if (0\\n[misc*verb]%16)/8 .nm \\*[Verbnm]
.ie !'\\$3'' .ft \\$3
.el .ft CR
.ie 0\\$2 \{\
.	ss \\$2
.	ps \\$2
.	vs \\$2
.\}
.el .ss 12
.ta T 8u*\w@n@u
.if (0\\n[misc*verb]%32)/16 .in +\\n[Verbin]u
.if 0\\n[misc*verb]%2 \{\
.	eo
.	nr @verbose-flag 1		\" tell pageheader to set ec/eo
.\}
..
.de VERBOFF
.ec
.br
.if (0\\n[misc*verb]%8)/4 .SP \\n[Lsp]u
.if (0\\n[misc*verb]%16)/8 .nm
.if (0\\n[misc*verb]%32)/16 .in
.ev
.nr @verbose-flag 0
..
.\" Wrapper to cancel the side effect of .tag + .br generating
.\" unwanted vertical space.
.de misc@tag
.\" This macro is currently used solely to give information to the
.\" HTML postprocessor.  If for PostScript or PDF output macro .H
.\" had been followed by .DS both .H post-space and .DS pre-space
.\" had been output because of this macro.  So it is now enabled
.\" only when postprocessor tags are required.
.if '\*[.T]'html' \{\
.\" retain temporary indentation and horizontal position
.if !(\\n[.in]-\\n[.i]=0) .nr misc*ti \\n[.in]
.nr misc*.k \\n[.k]
.vpt 0
.DEVTAG-\\$1 \\$2
.br
.if r misc*ti \{\
.	ti \\n[misc*ti]u
.	rr misc*ti
.	sp -1
.\}
.sp -1
\h'\\n[misc*.k]u'\c
.rr misc*.k
.vpt 1
.\}
..
.\" ######## module pict #################
.nr pict*width 0
.nr pict*height 0
.nr pict*mode 0
.nr pict*ind 0
.nr pict*id 0 1
.\" I assume that the number variable pict*id is the same
.\" between two runs.
.de PIC
.br
.nr pict*ind 0
.nr pict*box 0
.while \\n[.$]>0 \{\
.	if '-B'\\$1' \{\
.		nr pict*box 1
.		shift
.		continue
.	\}
.	if '-L'\\$1' \{\
.		nr pict*mode 0
.		shift
.		continue
.	\}
.	if '-R'\\$1' \{\
.		nr pict*mode 1
.		shift
.		continue
.	\}
.	if '-I'\\$1' \{\
.		nr pict*ind (m;\\$2)
.		nr pict*mode 2
.		shift 2
.		continue
.	\}
.	if '-C'\\$1' \{\
.		nr pict*mode 3
.		shift
.		continue
.	\}
.	ds pict*f \\$1
.	nr pict*id +1
.	shift
.	if \\n[.$]>0 \{\
.		if !\B'\\$1' .@error \\$0: width parameter is not \
numeric; got '\\$1'
.		nr pict*width (i;\\$1)
.		shift
.	\}
.	if \\n[.$]>0 \{\
.		if !\B'\\$1' .@error \\$0: height parameter is not \
numeric; got '\\$1'
.		nr pict*height (i;\\$1)
.		shift
.	\}
.\}
.\" let mmroff know the filename and id
.if \\n[Ref]>0 \{\
.	tm .\\\\" PIC id \\n[pict*id]
.	tm .\\\\" PIC file \\*[pict*f]
.\}
.\" these are defined by mmroff in the second pass
.if d pict*file!\\n[pict*id] \{\
.	ds pict*f \\*[pict*file!\\n[pict*id]]
.	nr pict*llx \\n[pict*llx!\\n[pict*id]]
.	nr pict*lly \\n[pict*lly!\\n[pict*id]]
.	nr pict*urx \\n[pict*urx!\\n[pict*id]]
.	nr pict*ury \\n[pict*ury!\\n[pict*id]]
.	\"
.	nr pict*w (p;\\n[pict*urx]-\\n[pict*llx])
.	if \\n[pict*w]<0 .nr pict*w 0-\\n[pict*w]
.	nr pict*h (p;\\n[pict*ury]-\\n[pict*lly])
.	if \\n[pict*h]<0 .nr pict*h 0-\\n[pict*h]
.	if \\n[pict*width]>0 \{\
.		nr pict*rs (u;1000*\\n[pict*width]/\\n[pict*w])
.		nr pict*w (u;\\n[pict*w]*\\n[pict*rs]/1000)
.		nr pict*h (u;\\n[pict*h]*\\n[pict*rs]/1000)
.	\}
.	if \\n[pict*height]>0 \{\
.		nr pict*rs (u;1000*\\n[pict*height]/\\n[pict*h])
.		nr pict*h (u;\\n[pict*h]*\\n[pict*rs]/1000)
.	\}
.	if '0'\\n[pict*mode]' \{\
.		nr pict*in \\n[.i]u
.	\}
.	if '1'\\n[pict*mode]' \{\
.		nr pict*in (u;\\n[.l]-\\n[.i]-\\n[pict*w])
.	\}
.	if '2'\\n[pict*mode]' \{\
.		nr pict*in \\n[pict*ind]u
.	\}
.	if '3'\\n[pict*mode]' \{\
.		nr pict*in (u;(\\n[.l]-\\n[.i]-\\n[pict*w])/2)
.	\}
.	ds pict*h "
.	if \\n[pict*h]>0 .ds pict*h \\n[pict*h]
.	\"
.	ne \\n[pict*h]u-1v
.	\"
.	\" these lines are copied and modified from pspic.tmac.
.	\" Originally written by James Clark
.	br
.	ie \\n[pict*box]>0 \{\
\v'-1v'\h'\\n[pict*in]u'\
\Z'\D'p 0 \\n[pict*h]u \\n[pict*w]u 0 0 -\\n[pict*h]u''\
\v'\\n[pict*h]u'\X'ps: import \\*[pict*f] \
\\n[pict*llx] \\n[pict*lly] \
\\n[pict*urx] \\n[pict*ury] \
\\n[pict*w] \\n[pict*h]'
.\}
.	el \{\
\v'-1v'\h'\\n[pict*in]u'\
\X'ps: invis'\
\Z'\D'p 0 \\n[pict*h]u \\n[pict*w]u 0 0 -\\n[pict*h]u''\
\X'ps: endinvis'\
\v'\\n[pict*h]u'\X'ps: import \\*[pict*f] \
\\n[pict*llx] \\n[pict*lly] \
\\n[pict*urx] \\n[pict*ury] \
\\n[pict*w] \\n[pict*h]'
.	\}
.	br
.	sp \\n[pict*h]u-1v
.\}
..
.\" external picture
.\" -L	left align
.de EPIC
.nr pict*adj 0		\" centered
.if '\\$1'-L' \{\
.	shift
.	nr pict*adj 1
.\}
.if \\n[.$]<2 \{\
.	@warning \\$0: ignoring; expected width and height arguments
.	return
.\}
.\" Permit a document to start with EPIC.
.if \\n[nl]<0 \&
.ie \B'\\$1' .nr pict*w \\$1
.el          .@error \\$0: width parameter is not numeric; got '\\$1'
.ie \B'\\$2' .nr pict*h \\$2
.el          .@error \\$0: height parameter is not numeric; got '\\$2'
.\" XXX: This is kind of lame.  It's also not localized.
.ds pict*name External picture\"
.if !''\\$3' .ds pict*name " \\$3\"
.ne \\n[pict*h]u
.sp \\n[pict*h]u-1v
.nr pict*ind 0
.if !\\n[pict*adj] .nr pict*ind (u;(\\n[.l]-\\n[.i]-\\n[pict*w])/2)
.mk
.in +\\n[pict*ind]u
\D'l \\n[pict*w]u 0'\
\D'l 0 -\\n[pict*h]u'\
\D'l -\\n[pict*w]u 0'\
\D'l 0 \\n[pict*h]u'\
\v'-(u;\\n[pict*h]/2)'\
\h'(u;(\\n[pict*w]-\w'\\*[pict*name]'/2))'\\*[pict*name]
.in
.rt
.sp 1v
..
.\" ######## module acc #################
.\"-----------
.\" accents. These are copied from mgs, written by James Clark.
.de acc@over-def
.ds \\$1 \Z'\v'(u;\w'x'*0+\En[rst]-\En[.cht])'\
\h'(u;-\En[skw]+(-\En[.w]-\w'\\$2'/2)+\En[.csk])'\\$2'
..
.de acc@under-def
.ds \\$1 \Z'\v'\En[.cdp]u'\h'(u;-\En[.w]-\w'\\$2'/2)'\\$2'
..
.acc@over-def ` \`
.acc@over-def ' \'
.acc@over-def ^ ^
.acc@over-def ~ ~
.acc@over-def : \[ad]
.acc@over-def ; \[ad]
.acc@under-def , \[ac]
.\" ######## module uni #################
.\" unimplemented macros
.de @disable
.ds @end \" empty
.while \\n[.$] \{\
.	rm \\$1 \" in case it's aliased
.	de \\$1 @end
.		@warning \\$1: ignoring; unavailable after \\*[@cover]
.	@end
.	shift
.\}
..
.rm @end
.
.de CS
.@warning \\$0: not implemented except with ".MT 4"
..
.de OK
.@warning \\$0: not implemented
..
.de PM
.@warning \\$0: not implemented
..
.\" ######## module hd #################
.\" support for usermacro
.nr hd*h1-page 1	\" last page-number for level 1 header.
.nr hd*htype 0
.ds hd*sect-pg
.ds hd*mark
.ds hd*suf-space
.nr hd*need 0
.aln ;0 hd*htype
.als }0 hd*mark
.als }2 hd*suf-space
.aln ;3 hd*need
.\"-------------
.\" .hd@split variable index name val1 val2 ...
.de hd@split
.\" TODO: Verify that this isn't reachable due to ordinary user error;
.\" if it is, make it an @error.
.if \\$2>(\\n[.$]-3) .@abort \\$3 must have at least \\$2 values \
(\\*[\\$3])
.nr hd*sp-tmp \\$2+3
.ds \\$1 \\$[\\n[hd*sp-tmp]]
..
.de HU
.H 0 "\\$1"
..
.\"-------------
.de H
.if !r hd*cur-bline .nr hd*cur-bline \\n[nl]
.br
.df@print-float 2\"	$$$ could be wrong...
.\" terminate all lists
.LC
.init@reset
.nr hd*level 0\\$1
.nr hd*arg1 0\\$1
.if !\\n[hd*level] .nr hd*level \\n[Hu]
.\"
.\"	clear lower counters
.nr hd*i 1 1
.while \\n+[hd*i]<15 .if \\n[hd*level]<\\n[hd*i] .nr H\\n[hd*i] 0 1
.\"
.\" save last text for use in TP
.if \\n[hd*level]=1 .ds H1txt \\$2\\$3
.\"
.\" This is a little fix to be able to get correct H1 heading number
.\" in page headers. Special attention was needed when other formats are used.
.ie !''\\g[H1]' \{\
.	ds hd*format \\g[H1]
.	af H1 0
.	nr H1h \\n[H1] 1
.	af H1 \\*[hd*format]
.\}
.el .nr H1h \\n[H1] 1
.if \\n[hd*level]=1 .nr H1h +1
.\"
.\" Break page before headings of level <= Ej.
.if ((\\n[hd*level]<=\\n[Ej])&(\\n[nl]>\\n[hd*cur-bline])) .pg@next-page
.\"
.\" increment current counter
.nr H\\n[hd*level] +1
.\"
.\" update pagenumber if section-page is used
.if (\\n[hd*level]=1)&(\\n[Sectp]>0) .hd@set-page 1
.\"
.\" hd*mark is the text written to the left of the header.
.ds hd*mark \\n[H1].
.\"
.if \\n[hd*level]>1 .as hd*mark \\n[H2]
.\"
.nr hd*i 2 1
.while \\n+[hd*i]<15 .if \\n[hd*level]>(\\n[hd*i]-1) \
.	as hd*mark .\\n[H\\n[hd*i]]
.if \\n[Ht] .ds hd*mark \\n[H\\n[hd*level]].
.\"
.\" special case, no dot after level one heading if not H1dot true
.if (\\n[hd*level]=1)&(\\n[H1dot]=0) .ds hd*mark \\n[H1]
.\"
.ds hd@mark-trimmed \\*[hd*mark]\" mark without spaces, for references
.as hd*mark \ \ \"	add spaces between heading mark and title
.if !\\n[hd*arg1] .ds hd*mark \" empty; no mark for unnumbered heading
.\"
.if \\n[D]>1 .tm At header \\*[hd*mark] "\\$2"
.nr hd*htype 0			\" hd*htype = check break and space
.				\" 0 = run-in, 1 = break only, 2 = space
.if \\n[hd*level]<=\\n[Hb] .nr hd*htype 1
.if \\n[hd*level]<=\\n[Hs] .nr hd*htype 2
.					\" two spaces if hd*htype == 0
.ie (\\n[hd*htype]=0)&(\w@\\$2@) .ds hd*suf-space "  \"
.el .ds hd*suf-space \" empty
.nr hd*need 2v				\" hd*need = header need space
.\"---------- user macro HX ------------
.\" User exit macro to override numbering.
.\" May change hd*mark (}0), hd*suf-space (}2) and hd*need (;3)
.\" Can also change Hps1/2.
.if d HX .HX \\n[hd*level] \\n[hd*arg1] "\\$2\\$3"
.\"--------------------------------------
.\" pre-space
.ie \\n[hd*level]<=\\n[Hps] .SP (u;\\n[Hps2])
.el .SP (u;\\n[Hps1])
.\"
.par@reset-num \\n[hd*level]\"			reset numbered paragraph
.\" start diversion to measure size of header
.di hd*div
\\*[hd*mark]\\$2\\$3\\*[hd*suf-space]
.br
.di
.rm hd*div
.if \\n[hd*htype] .na \"	do not adjust heading if not run-in
.if \\n[hd*htype]<2 .nr hd*need +\\n[Lsp]u \"	add some extra space
.ne \\n[hd*need]u+\\n[dn]u+.5p-1v \"	space needed for a heading
.\"
.\" size and font calculations
.hd@split hd*font \\n[hd*level] HF \\*[HF]\"	get font for this level
.ft \\*[hd*font]\"			set new font
.hd@split hd*new-ps \\n[hd*level] HP \\*[HP]\"	get point size
.ie (\\*[hd*new-ps]=0):(\w@\\*[hd*new-ps]@=0) \{\
.	if \\n[hd*htype] \{\
.		if '\\*[hd*font]'3' \{\
.			ps -1
.			vs -1
.		\}
.		if '\\*[hd*font]'B' \{\
.			ps -1
.			vs -1
.		\}
.	\}
.\}
.el \{\
.	ps \\*[hd*new-ps]
.	vs \\*[hd*new-ps]+2
.\}
.\"
.\"---------- user macro HY -------------
.\"	user macro to reset indents
.if d HY .HY \\n[hd*level] \\n[hd*arg1] "\\$2\\$3"
.\" HTML: mark beginning of heading
.misc@tag NH \\n[hd*level]
.\"--------------------------------------
.nr hd*mark-size \w@\\*[hd*mark]@
.if (\\n[hd*level]<=\\n[Hc])&\\n[hd*htype] .ce\" center if level<=Hc
.\"
.\"	finally, output the header
\\*[hd*mark]\&\c
.\"	and the rest of the header
.ie \\n[hd*htype] \{\
\\$2\\$3
.	br
.\}
.el \\$2\\$3\\*[hd*suf-space]\&\c
.ft 1
.\" restore pointsize and vertical size.
.ps \\n[@ps]u
.vs \\n[@vs]u
.\"
.\" table of contents
.if (\\n[hd*level]<=\\n[Cl])&\w@\\$2@ .toc@entry \\n[hd*level] "\\$2"
.\"	set adjust to previous value
.SA
.\"	do break or space
.if \\n[hd*htype] .br
.if \\n[hd*htype]>1 .SP (u;\\n[Lsp]*\\n[Hss])
.ie \\n[hd*htype] \{\
.	\"	indent if Hi=1 and Pt=1
.	if (\\n[Hi]=1)&(\\n[Pt]=1) .ti +\\n[Pi]n
.	\"	indent size of mark if Hi=2
.	if \\n[hd*htype]&(\\n[Hi]>1) .ti +\\n[hd*mark-size]u
.	nr par@suppress-indentation 1
.\}
.\" We're setting a run-in heading; the next paragraph is normal.
.el .nr par@suppress-indentation 0
.\"
.\"	check if it is time to reset footnotes
.if (\\n[hd*level]=1)&\\n[ft*clear-at-header] .nr ft*nr 0 1
.\"
.\"	check if it is time to reset indexes
.if (\\n[hd*level]=1)&\\n[Sectf] \{\
.	nr lix*fg-nr 0 1
.	nr lix*tb-nr 0 1
.	nr lix*ec-nr 0 1
.	nr lix*ex-nr 0 1
.\}
.\"---------- user macro HZ ----------
.if d HZ .HZ \\n[hd*level] \\n[hd*arg1] "\\$2\\$3"
.nr hd*last-pos \\n[nl]
.nr hd*last-hsize \\n[.k]
.\" HTML: end of heading
.misc@tag EO-H
..
.\"--------
.de HM
.nr hd*i 0 1
.while \\n+[hd*i]<15 .af H\\n[hd*i] \\$[\\n[hd*i]] 1
..
.\"----------------------
.\" set page-nr, called from header
.\"
.de hd@set-page
.\"
.ie \\n[.$]>0 .nr P \\$1
.el .nr P +1
.\" Set section-page-string
.ds hd*sect-pg \\n[H1]-\\n[P]
.if \\n[Sectp]>1 .if '\\n[H1]'0' .ds hd*sect-pg "
..
.\"########### module pg ####################
.\" set end of text trap
.wh 0 pg@header
.em pg@end-of-text
.\"
.ds pg*header ''- \\n[P] -''
.ds pg*footer
.if \n[N]=4 .ds pg*header ''''
.if (\n[N]=3):(\n[N]=5) \{\
.	ds pg*header ''''
.	ds pg*footer ''\\*[hd*sect-pg]''
.\}
.ds pg*even-footer
.ds pg*odd-footer
.ds pg*even-header
.ds pg*odd-header
.\"
.nr pg*top-margin 0
.nr pg*foot-margin 0
.nr pg*block-size 0
.nr pg*footer-size 5v\"			 1v+footer+even/odd footer+2v
.nr pg*header-size 7v\"			 3v+header+even/odd header+2v
.nr pg*extra-footer-size 0
.nr pg*extra-header-size 0
.nr ft*note-size 0
.nr pg*cur-column 0
.nr pg*cols-per-page 1
.nr pg*cur-po \n[@po]
.nr pg*head-mark 0
.\"
.nr pg*ps \n[@ps]
.nr pg*vs \n[@vs]
.\"-------------------------
.\" footer TRAPS: set, enable and disable
.de pg@set-new-trap
.nr pg*foot-trap \\n[@pl]u-(\\n[pg*block-size]u+\\n[ft*note-size]u+\\n[pg*foot-margin]u+\\n[pg*footer-size]u+\\n[pg*extra-footer-size]u)
.\"
.if \\n[D]>2 .tm pg*foot-trap \\n[@pl]u-(\\n[pg*block-size]u+\\n[ft*note-size]u+\\n[pg*foot-margin]u+\\n[pg*footer-size]u+\\n[pg*extra-footer-size]u) = \\n[pg*foot-trap]
.\"
.\" last-pos points to the position of the footer and bottom
.\" block below foot-notes.
.nr pg*last-pos \\n[@pl]u-(\\n[pg*block-size]u+\\n[pg*foot-margin]u+\\n[pg*footer-size]u+\\n[pg*extra-footer-size]u)
.if \\n[D]>2 .tm pg*last-pos \\n[@pl]u-(\\n[pg*block-size]u+\\n[pg*foot-margin]u+\\n[pg*footer-size]u+\\n[pg*extra-footer-size]u) = \\n[pg*last-pos]
..
.de pg@enable-trap
.\" Disable in HTML mode
.if !'\*[.T]'html' \{\
.wh \\n[pg*foot-trap]u pg@footer
.if \\n[D]>2 .tm pg@enable-trap .t=\\n[.t] nl=\\n[nl]
.if \\n[D]>2 .ptr
.\}
..
.de pg@disable-trap
.ch pg@footer
..
.\" move to new trap (if changed).
.de pg@move-trap
.pg@disable-trap
.pg@set-new-trap
.pg@enable-trap
..
.de pg@enable-top-trap
.\" set trap for pageheader.
.nr pg*top-enabled 1
..
.de pg@disable-top-trap
.\" remove trap for pageheader.
.nr pg*top-enabled 0
..
.\" no header on the next page
.de PGNH
.nr pg*top-enabled (-1)
..
.\" set first trap for pagefooter
.pg@enable-top-trap
.pg@set-new-trap
.pg@enable-trap
.\"-------------------------
.\" stop output and begin on next page. Fix footnotes and all that.
.de pg@next-page
.\".debug next-page
.ne 999i		\" activate trap
.\" .pg@footer
..
.\"-------------------------
.\" support for PX, TP and EOP.
.als }t pg*header
.als }e pg*even-header
.als }o pg*odd-header
.als TPh pg*header
.als TPeh pg*even-header
.als TPoh pg*odd-header
.\"
.als }b pg*footer
.als }f pg*even-footer
.als }p pg*odd-footer
.als EOPf pg*footer
.als EOPef pg*even-footer
.als EOPof pg*odd-footer
.\"------------------------------------------------------------
.\" HEADER
.de pg@header
.\" Disable in HTML mode
.if !'\*[.T]'html' \{\
.if \\n[D]>1 .tm Page# \\n[%] (\\n[.F]:\\n[c.])
.	if (u;(\\n[pg*header-size] + \\n[pg*extra-header-size] \
       + \\n[pg*footer-size] + \\n[pg*extra-footer-size] \
       + \\n[.V]) >= \\n[.p]) \{\
.		pl \\n[nl]u
.		@error insufficient page length; aborting
.	\}
.\}
.\" check if Hy has been changed
.ie \\n[Hy] 'hy 14
.el 'nh
.if \\n[Idxf] \{\
.tl '<pagenr\ \\n[%]>'''
.\}
.\" assign current page-number to P
.hd@set-page
.\" reset spacing
.nr line*lp\\n[.z] 0
.nr line*ac\\n[.z] 0
.\"
.\" suppress pageheader if pagenumber == 1 and N == [124]
.if \\n[pg*top-enabled] \{\
.\"	must be fixed!!
.\".	pg@disable-top-trap
.	if \\n[pg*extra-header-size] 'sp \\n[pg*extra-header-size]u
.	if \\n[pg*top-margin] 'sp \\n[pg*top-margin]u
.	ev pg*tl-ev
.	pg@set-env
.	ie d let@header .let@header
.	el \{\
.		ie d TP .TP
.		el \{\
'			sp 3
.			ds hd*format \\g[P]
.			af P 0
.			ie ((\\n[P]=1)&((\\n[N]=1):(\\n[N]=2))) .sp
.			el .tl \\*[pg*header]
.			af P \\*[hd*format]
.			ie o .tl \\*[pg*odd-header]
.			el .tl \\*[pg*even-header]
'			sp 2
.		\}
.	\}
.	ev
.	\" why no-space??
.	if d PX \{\
.		ns
.		PX
.		rs
.	\}
.	\" check for pending footnotes
.	ft@check-old
.	\"
.	\" back to normal text processing
.	pg@enable-trap
.	\" mark for multicolumn
.	nr pg*head-mark \\n[nl]u
.	\" reset NCOL pointer at each new page.
.	nr pg*last-ncol 0
.	\" set multicolumn
.	\"
.	pg@set-po
.	\" print floating displays
.	df@print-float 4
.	tbl@top-hook
.	ns
.\}
.if \\n[pg*top-enabled]<0 .nr pg*top-enabled 1
.nr hd*cur-bline \\n[nl]	\" .H needs to know if output has occurred
.\}
..
.\"---------------------------------------------------------
.\" FOOTER
.de pg@footer
.ec
.if \\n[D]>2 .tm Footer# \\n[%] (\\n[.F]:\\n[c.]) nl=\\n[nl]
.pg@disable-trap
.\".debug footer
.tbl@bottom-hook
.\" increment pageoffset for MC
.\" move to the exact start of footer.
'sp |\\n[pg*foot-trap]u+1v
.\"
.if \\n[D]>3 .tm FOOTER after .sp, nl=\\n[nl]
.\" print footnotes
.if d ft*div .ft@print
.\"
.pg@inc-po
.if !\\n[pg*cur-column] .pg@print-footer
.\" next column
.pg@set-po
.pg@enable-trap
.if \\n[@verbose-flag] .eo		\" to help VERBON/VERBOFF
..
.\"-------------------------
.de pg@print-footer
.\" jump to the position just below the foot-notes.
'sp |\\n[pg*last-pos]u+1v
.if \\n[D]>3 .tm print-footer nl=\\n[nl]
.\" check if there are any bottom block
.if d pg*block-div .pg@block
.\"
.\" print the footer and eject new page
.ev pg*tl-ev
.pg@set-env
.vpt 0
.\" user defined end-of-page macro
.ie d EOP .EOP
.el \{\
.	ie o .tl \\*[pg*odd-footer]
.	el .tl \\*[pg*even-footer]
.	ds hd*format \\g[P]
.	af P 0
.	ie (\\n[P]=1)&(\\n[N]=1) .tl \\*[pg*header]
.	el .tl \\*[pg*footer]
.	af P \\*[hd*format]
.	tl ''\\*[Pg_type!\\n[@copy_type]]''
.\}
.vpt 1
.ev
.\" be sure that floating displays and footnotes will be
.\" printed at the end of the document.
.ie (\\n[df*fnr]>=\\n[df*o-fnr]):\\n[ft*exist] \{\
.	ev ne
'	bp
.	ev
.\}
.el 'bp
..
.\"-------------------------
.\"
.\" Initialize the title environment
.de pg@set-env
'na
'nh
'in 0
'ti 0
.ie \\n[Pgps] \{\
.	ps \\n[@ps]u
.	vs \\n[@vs]u
.\}
.el \{\
.	ps \\n[pg*ps]u
.	vs \\n[pg*vs]u
.\}
.lt \\n[@ll]u
.ll \\n[@ll]u
..
.\"-------------------------
.de PH
.ds pg*header "\\$1
.pg@set-new-size
..
.de PF
.ds pg*footer "\\$1
.pg@set-new-size
..
.de OH
.ds pg*odd-header "\\$1
.pg@set-new-size
..
.de EH
.ds pg*even-header "\\$1
.pg@set-new-size
..
.de OF
.ds pg*odd-footer "\\$1
.pg@set-new-size
..
.de EF
.ds pg*even-footer "\\$1
.pg@set-new-size
..
.de pg@clear-hd
.ds pg*even-header
.ds pg*odd-header
.ds pg*header
..
.de pg@clear-ft
.ds pg*even-footer
.ds pg*odd-footer
.ds pg*footer
..
.de pg@set-new-size
.nr pg*ps \\n[@ps]
.nr pg*vs \\n[@vs]
.pg@move-trap
..
.\"-------------------------
.\" end of page processing
.de pg@footnotes
.\".debug footnotes
.\" output footnotes. set trap for block
.\"
..
.\"-------------------------
.\" print bottom block
.de pg@block
.ev pg*block-ev
'nf
'in 0
.ll 100i
.pg*block-div
.br
.ev
..
.\"-------------------------
.\" define bottom block
.de BS
.misc@ev-keep pg*block-ev
.init@reset
.br
.di pg*block-div
..
.\"-------------------------
.de BE
.br
.di
.nr pg*block-size \\n[dn]u
.ev
.pg@move-trap
..
.\"-------------------------
.\" print out all pending text
.de pg@end-of-text
.if \\n[D]>2 .tm ---------- End of text processing ----------------
.df@eot-print
.ref@eot-print
..
.\"-------------------------
.\" set top and bottom margins
.\" -T	sets pg*footer-size and pg*header-size instead
.de VM
.ie '\\$1'-T' \{\
.	shift
.	if \\n[.$]=0 \{\
.		nr pg*footer-size 5v
.		nr pg*header-size 7v
.	\}
.	if \\n[.$]>0 .nr pg*header-size (v;\\$1)
.	if \\n[.$]>1 .nr pg*footer-size (v;\\$2)
.\}
.el \{\
.	if \\n[.$]=0 \{\
.		nr pg*extra-footer-size 0
.		nr pg*extra-header-size 0
.	\}
.	if \\n[.$]>0 .nr pg*extra-header-size (v;\\$1)
.	if \\n[.$]>1 .nr pg*extra-footer-size (v;\\$2)
.	if \\n[D]>2 \{\
.		tm extra top \\n[pg*extra-footer-size]
.		tm extra bottom \\n[pg*extra-header-size]
.	\}
.\}
.pg@move-trap
..
.\"---------------------
.\" multicolumn output.
.de pg@set-po
.if \\n[pg*cols-per-page]>1 \{\
.	ll \\n[pg*column-size]u
.\}
..
.de pg@inc-po
.if \\n[pg*cols-per-page]>1 \{\
.	ie \\n+[pg*cur-column]>=\\n[pg*cols-per-page] \{\
.		nr pg*cur-column 0 1
.		nr pg*cur-po \\n[@po]u
.		po \\n[@po]u
.		ll \\n[@ll]u
.	\}
.	el \{\
.		nr pg*cur-po +(\\n[pg*column-size]u+\\n[pg*column-sep]u)
.		po \\n[pg*cur-po]u
'		sp |\\n[pg*head-mark]u
.		tbl@top-hook
.	\}
.\}
..
.\" An argument disables the page-break.
.de 1C
.if \\n[pg*cols-per-page]<=1 \{\
.	@warning \\$0: multicolumn mode not active
.	return
.\}
.br
.nr pg*cols-per-page 1
.nr pg*column-sep 0
.nr pg*column-size \\n[@ll]
.nr pg*ncol-i \\n[pg*cur-column]\"	temp variable
.nr pg*cur-column 0 1
.nr pg*cur-po \\n[@po]u
.PGFORM
.ie !'\\$1'1' .SK
.el \{\
.	if d ft*div \{\
.		if \\n[pg*ncol-i]>0 \{\
.			@warning \\$0: returning to single-column \
layout with suppressed page break and footnote pending; output may be \
messy
.		\}
.	\}
.	if \\n[pg*last-ncol]>0 \{\
.		sp |\\n[pg*last-ncol]u
.		nr pg*last-ncol 0
.	\}
.\}
..
.de 2C
.if \\n[pg*cols-per-page]>1 .@error \\$0: multicolumn mode already \
active
.br
.nr pg*head-mark \\n[nl]u
.nr pg*cols-per-page 2
.nr pg*column-sep \\n[@ll]/15
.nr pg*column-size (\\n[@ll]u*7)/15
.nr pg*cur-column 0 1
.nr pg*cur-po \\n[@po]u
.ll \\n[pg*column-size]u
.\" .lt \\n[pg*column-size]u
..
.\" MC column-size [ column-separation ]
.de MC
.if \\n[pg*cols-per-page]>1 .@error \\$0: multicolumn mode already \
active
.br
.nr pg*head-mark \\n[nl]u
.ie ''\\$1' .nr pg*column-size \\n[.l]
.el .nr pg*column-size (n;\\$1)
.ie ''\\$2' .nr pg*column-sep \\n[pg*column-size]/15
.el .nr pg*column-sep (n;\\$2)
.\"
.\" calculate the number of columns/page
.nr pg*cols-per-page 0 \" temporarily invalid!
.nr pg*i \\n[pg*column-size]
.while \\n[pg*i]<=\\n[.l] \{\
.	nr pg*cols-per-page +1
.	nr pg*i \\n[pg*i]+\\n[pg*column-sep]+\\n[pg*column-size]
.\}
.if \\n[pg*cols-per-page]<0 .@abort \\n[pg*cols-per-page] columns in \
page
.nr pg*cur-column 0 1
.nr pg*cur-po \\n[@po]u
.ll \\n[pg*column-size]u
.\" .lt \\n[pg*column-size]u
..
.\" begin a new column
.de NCOL
.br
.if \\n[nl]>\\n[pg*last-ncol] .nr pg*last-ncol \\n[nl]
.pg@footer
..
.\" skip pages
.de SK
.br
.bp
.nr pg*i 0 1
.\" force new page by writing something invisible.
.while \\n+[pg*i]<=(0\\$1) \{\
\&
.	bp
.\}
..
.\"-------------------------------
.\" MULB width1 space1 width2 space2 width3 space3 ...
.de MULB
.br
.nr pg*i 0 1
.nr pg*mul-x 0 1
.nr pg*mul-ind 0
.nr pg*mul-last 0
.while \\n[.$] \{\
.	nr pg*mul!\\n+[pg*i] (n;0\\$1)
.	nr pg*muls!\\n[pg*i] (n;0\\$2)
.	shift 2
.\}
.nr pg*mul-max-col \\n[pg*i]
.ds pg*mul-fam \\n[.fam]
.nr pg*mul-font \\n[.f]
.ev pg*mul-ev
.ps \\n[@ps]u
.vs \\n[@vs]u
.fam \\*[pg*mul-fam]
.ft \\n[pg*mul-font]
.fi
.hy 6
.di pg*mul-div
.MULN
..
.\"-----------
.de MULN
.if \\n[pg*mul-x]>=\\n[pg*mul-max-col] .@abort undefined column width \
(pg*mul-x=\\n[pg*mul-x >= pg*mul-max-col=\\n[pg*mul-max])
.br
.if \\n[.d]>\\n[pg*mul-last] .nr pg*mul-last \\n[.d]
.rt +0
.in \\n[pg*mul-ind]u
.ll (u;\\n[.i]+\\n[pg*mul!\\n+[pg*mul-x]])u
.nr pg*mul-ind +(u;\\n[pg*mul!\\n[pg*mul-x]]+\\n[pg*muls!\\n[pg*mul-x]])
..
.\"-----------
.\" MULE
.de MULE
.br
.if \\n[.d]>\\n[pg*mul-last] .nr pg*mul-last \\n[.d]
.di
.ev
.ne \\n[pg*mul-last]u
.nf
.mk
.pg*mul-div
.rt
.sp \\n[pg*mul-last]u
.fi
..
.\"-----------
.de OP
.br
.ie o .if !\\n[pg*head-mark]=\\n[nl] \{\
.	bp +1
.	bp +1
.\}
.el .bp
..
.\"########### module footnotes ###################
.nr ft*note-size 0
.nr ft*busy 0
.nr ft*nr 0 1
.aln :p ft*nr
.nr ft*wide 0
.nr ft*hyphen 0\"	hyphenation value
.nr ft*adjust 1\"	>0 if adjust true
.nr ft*indent 1\"	>0 if text indent true (not imp. $$$)
.nr ft*just 0\"	0=left justification, 1=right (not imp. $$$)
.nr ft*exist 0\"	not zero if there are any footnotes to be printed
.nr ft*clear-at-header 0\" >0 if footnotes should be reset at first level head.
.\"
.ie t .ds F \v'-.4m'\s-3\\n+[ft*nr]\s0\v'.4m'
.el   .ds F [\\n+[ft*nr]]
.\"
.\"-----------------
.\" init footnote environment
.de ft@init
.\" indentcontrol not implemented $$$
.\" label justification not implemented $$$
'in 0
'fi
.ie \\n[ft*adjust] 'ad
.el 'na
.ie \\n[ft*hyphen] 'hy 6
.el 'hy 0
.ll \\n[@cur-ll]u
.lt \\n[@cur-ll]u
.ps (p;\\n[@ps]u-2)
.vs (p;\\n[@vs]u-1)
..
.\"-----------------
.\" set footnote format
.\" no support for two column processing (yet). $$$
.de FD
.if \\n[.$]=0 .@error \\$0: expected 1 or 2 arguments, got \\n[.$]
.ie \\n[.$]=2 .nr ft*clear-at-header 1
.el .nr ft*clear-at-header 0
.\"
.if !'\\$1'' \{\
.	ie \\$1>11 .nr ft*format 0
.	el .nr ft*format \\$1
.	\"
.	nr ft*hyphen (\\n[ft*format]%2)*6
.	nr ft*format \\n[ft*format]/2
.	\"
.	nr ft*adjust 1-(\\n[ft*format]%2)
.	nr ft*format \\n[ft*format]/2
.	\"
.	nr ft*indent 1-(\\n[ft*format]%2)
.	nr ft*format \\n[ft*format]/2
.	\"
.	nr ft*just \\n[ft*format]%2
.\}
..
.\"---------------
.\" Footnote and display width control $$$
.de WC
.nr ft*i 0 1
.while \\n+[ft*i]<=\\n[.$] \{\
.	ds ft*x \\$[\\n[ft*i]]
.	if '\\*[ft*x]'N' \{\
.		nr ft*wide 0
.		nr ft*first-fn 0
.		nr ds*wide 0
.		nr ds*float-break 1
.	\}
.	if '\\*[ft*x]'-WF' .nr ft*wide 0
.	if '\\*[ft*x]'WF' .nr ft*wide 1
.	if '\\*[ft*x]'-FF' .nr ft*first-fn 0
.	if '\\*[ft*x]'FF' .nr ft*first-fn 1
.	if '\\*[ft*x]'-WD' \{\
.		nr ds*wide 0
.		if r ft*df-save \{\
.			nr Df \\n[ft*df-save]
.			rm ft*df-save
.		\}
.	\}
.	if '\\*[ft*x]'WD' \{\
.		nr ds*wide 1
.		nr ft*df-save \\n[Df]
.		nr Df 4
.	\}
.	if '\\*[ft*x]'-FB' .nr ds*float-break 0
.	if '\\*[ft*x]'FB' .nr ds*float-break 1
.	if \\n[D]>1 .tm WC WF=\\n[ft*wide] WD=\\n[ds*wide]
.\}
..
.\"-----------------
.\" begin footnote
.\" Change environment, switch to diversion and print the foot-note mark.
.de FS
.if \\n[ft*busy] .@error \\$0: cannot nest; missing FE?
.nr ft*busy 1
.ev ft*ev
.ft@init
.if !\\n[ft*wide] .pg@set-po
.di ft*tmp-div
.nr ft*space (u;\\n[Fs]*\\n[Lsp])
.sp \\n[ft*space]u
.\" print mark
.ie \\n[.$] .ds ft*mark \\$1
.el .ds ft*mark \\n[ft*nr].
\\*[ft*mark]
.in +.75c
.sp -1
.nr ft*exist 1
..
.\"-----------------
.\" init footnote diversion
.de ft@init-footnote
.di ft*div
\l'20n'
.br
.di
.nr ft*note-size \\n[dn]
..
.\"-----------------
.\" end footnote
.\" End the diversion, back to previous environment, and adjust
.\" the trap to the new foot-note size.
.de FE
.nr ft*busy 0
.br
.di
'in 0
'nf
.if \\n[@pl]u<\\n[dn]u .@error \\$0: footnote bigger than page area
.if !d ft*div .nr dn +1v
.if \\n[D]>3 .tm FE: foot-trap=\\n[pg*foot-trap] .d=\\n[.d] dn=\\n[dn]
.ie (\\n[pg*foot-trap]u-\\n[.d]u)<\\n[dn]u \{\
.	da ft*next-div
.	ft*tmp-div
.	br
.	di
.\}
.el \{\
.	if !d ft*div .ft@init-footnote
.	da ft*div
.	ft*tmp-div
.	di
.	nr ft*note-size +\\n[dn]
.\}
.rm ft*tmp-div
.ev
.pg@move-trap
..
.\"-----------------
.\" print footnotes, see pg@footer
.de ft@print
.ev ft*print-ev
'nf
'in 0
.ll 100i
.ft*div
.br
.ev
.rm ft*div
.nr ft*note-size 0
.pg@move-trap
..
.\"-----------------
.\" check if any pending footnotes, see pg@header
.de ft@check-old
.if d ft*next-div \{\
.	ev ft*ev
.	ft@init
.	ft@init-footnote
.	nf
.	in 0
.	da ft*div
.	ft*next-div
.	di
.	nr ft*note-size +\\n[dn]
.	rm ft*next-div
.	ev
.	nr ft*exist 0
.	pg@move-trap
.\}
..
.\"########### module display ###################
.nr ds*wide 0\"		>0 if wide displays wanted
.nr df*fnr 0 1\"	floating display counter
.nr df*o-fnr 1\"	floating display counter, already printed
.nr ds*snr 0 1\"	static display counter
.nr ds*lvl 0 1\"	display level
.nr ds*float-busy 0\"	>0 if printing float
.nr df*float 0\"	>0 if previous display was floating
.\"--------------------------------------------
.de DE
.ie \\n[df*float] .df@end \\$@
.el .ds@end \\$@
..
.\"--------------------------------------------
.\" floating display start
.\" nested DF/DE is not allowed.
.de DF
.if \\n[df*float] .@error \\$0: cannot nest floating keeps; use DS \
within DF/DE
.ds ds@macro \\$0
.ds@set-format \\$@
.\"
.nr df*old-ll \\n[.l]
.nr ds*ftmp \\n[.f]
.misc@ev-keep df*ev
.ft \\n[ds*ftmp]
.\"
.init@reset
.di df*div
'in 0
.\"
.ds@set-new-ev \\n[df*old-ll]
.SP \\n[Lsp]u
.nr df*float 1
..
.\"--------------------------------------------
.de df@end
.br
.SP \\n[Lsp]u
.di
.nr df*width!\\n+[df*fnr] \\n[dl]
.nr df*height!\\n[df*fnr] \\n[dn]
.nr df*wide!\\n[df*fnr] \\n[ds*wide]
.nr df*format!\\n[df*fnr] \\n[ds*format]
.ev
.if \\n[D]>2 .tm DF:fnr=\\n[df*fnr] w=\\n[dl] h=\\n[dn] wide=\\n[ds*wide] \
 form=\\n[ds*format]
.\"	move div to the floating display list
.rn df*div df*fdiv!\\n[df*fnr]
.\"
.nr par@suppress-indentation 1	\" no indentation after displays
.\" print float if queue is empty and the display fits into
.\" the current page
.if ((\\n[df*fnr]>=\\n[df*o-fnr])&(\\n[dn]<\\n[.t])) .df@print-float 1
.nr df*float 0
..
.\"-------------
.\" called by end-of-text
.de df@eot-print
.br
.if \\n[df*o-fnr]<=\\n[df*fnr] \{\
.	if \\n[D]>2 .tm Print remaining displays.
.\" still some floats left, make non-empty environment
.	misc@ev-keep ne
.	init@reset
\c
.	df@print-float 3
.	ev
.\}
..
.\"---------------
.\" print according to Df and De.
.\" .df@print-float type
.\"	type	called from
.\"	1	.DE
.\"	2	end of section
.\"	3	end of document
.\"	4	beginning of new page
.\"
.de df@print-float
.if \\n[Df]>5 .@abort invalid float type: 5 < Df (\\n[Df])
.if !\\n[ds*float-busy] \{\
.	nr ds*float-busy 1
.\" at .DE
.	if \\n[D]>3 \{\
.		tmc print-float: .t=\\n[.t]
.		if r df*height!\\n[df*o-fnr] \
.			tmc , h=\\n[df*height!\\n[df*o-fnr]]
.		tm
.	\}
.	\" Df = 1 or 5
.	if (\\$1=1)&((\\n[Df]=1):(\\n[Df]=5)) \{\
.		if \\n[.t]>\\n[df*height!\\n[df*o-fnr]] \{\
.			\" Print only new displays.
.			if \\n[df*o-fnr]=\\n[df*fnr] \{\
.				br
.				ds@print-one-float
.			\}
.		\}
.	\}
.	\" Df = 3
.	if (\\$1=1)&(\\n[Df]=3) \{\
.		if \\n[.t]>\\n[df*height!\\n[df*o-fnr]] \{\
.			br
.			ds@print-one-float
.		\}
.	\}
.\" print all if Df<2 and end of section
.	if (\\$1=2)&(\\n[Sectp]>0)&(\\n[Df]<2) \{\
.		br
.		ds@print-all-floats
.	\}
.\" print all if end of document. Where should they go instead?
.	if \\$1=3 \{\
.		br
.		ds@print-all-floats
.\}
.\" new page
.	if (\\$1=4)&(\\n[Df]>1) \{\
.		if \\n[Df]=2 .ds@print-one-float
.		if \\n[Df]=3 .ds@print-one-float
.		if \\n[Df]>3 \{\
.			ie \\n[De] .ds@print-all-floats
.			el .ds@print-this-page
.		\}
.	\}
.	nr ds*float-busy 0
.\}
..
.\"---------------
.\" DF out
.\" print a floating diversion
.de ds@output-float
.nr df*old-ll \\n[.l]
.nr df*old-in \\n[.i]
.ev ds*fev
.nf
.nr df*i \\n[df*o-fnr]
.nr df*f \\n[df*format!\\n[df*i]]
.\"
.in \\n[df*old-in]u
.if \\n[df*f]=1 'in +\\n[Si]n
.if \\n[df*f]>=2 'in 0
.if \\n[df*f]=2 'ce 9999
.if \\n[df*f]=3 'in (u;(\\n[.l]-\\n[df*width!\\n[df*i]])/2)
.if \\n[df*f]=4 'rj 9999
.if \\n[df*f]=5 'in (u;\\n[.l]-\\n[df*width!\\n[df*i]])
.\"
.\"
.df*fdiv!\\n[df*o-fnr]
.\"
.if \\n[df*f]=2 'ce 0
.if \\n[df*f]=4 'rj 0
.ev
.rm df*fdiv!\\n[df*i]
.rm df*height!\\n[df*i]
.rm df*format!\\n[df*i]
.if \\n[df*wide!\\n[df*i]] .nr pg*head-mark \\n[nl]u
.nr df*o-fnr +1
..
.\"---------------
.\" print one floating display if there is one.
.de ds@print-one-float
.if \\n[df*o-fnr]<=\\n[df*fnr] \{\
.	if \\n[D]>3 .tm print-one-float: .t=\\n[.t], h=\\n[df*height!\\n[df*o-fnr]]
.	if \\n[.t]<\\n[df*height!\\n[df*o-fnr]] .pg@next-page
.	ds@output-float
.	if \\n[De] .pg@next-page
.\}
..
.\"---------------
.\" print all queued floats.
.\" if De>0 do a page eject between the floats.
.de ds@print-all-floats
.while \\n[df*o-fnr]<=\\n[df*fnr] \{\
.	if \\n[D]>3 .tm print-all-floats: .t=\\n[.t], h=\\n[df*height!\\n[df*o-fnr]]
.	if \\n[.t]<\\n[df*height!\\n[df*o-fnr]] .pg@next-page
.	br
\c
.	ds@output-float
.	if \\n[De] .pg@next-page
.\}
..
.\"---------------
.\" print as many floats as will fit on the current page
.de ds@print-this-page
.while \\n[df*o-fnr]<=\\n[df*fnr] \{\
.	if \\n[D]>3 .tm print-this-page: .t=\\n[.t], h=\\n[df*height!\\n[df*o-fnr]]
.	if \\n[.t]<\\n[df*height!\\n[df*o-fnr]] .break
.	ds@output-float
.\}
..
.\"---------------------------------------------------
.\" get format of the display
.de ds@set-format
.ie \\n[.$] \{\
.	ie r ds*format!\\$1 .nr ds*format \\n[ds*format!\\$1]
.	el .@error \\*[ds@macro]: unrecognized format '\\$1'
.\}
.el .nr ds*format 0
.if \\n[D]>2 .tm set format=\\n[ds*format]
.\" fill or not to fill, that is the...
.nr ds*fill 0
.if \\n[.$]>1 \{\
.	ie r ds*fill!\\$2 .nr ds*fill \\n[ds*fill!\\$2]
.	el .@error \\*[ds@macro]: unrecognized fill style '\\$2'
.\}
.if \\n[D]>2 .tm set fill=\\n[ds*fill]
.nr ds*rindent 0
.if \\n[.$]>2 .nr ds*rindent \\$3
.if \\n[D]>2 .tm set indent=\\n[ds*rindent]
..
.\"-----------------------------
.\" .ds@set-new-ev previous-line-length
.de ds@set-new-ev
.ll \\$1u
.lt \\$1u
.if \\n[ds*rindent] \{\
.	ll -\\n[ds*rindent]n
.	lt -\\n[ds*rindent]n
.\}
.if \\n[ds*wide] \{\
.	ll \\n[@ll]u
.	lt \\n[@ll]u
.\}
.\"
.ie \\n[ds*fill] 'fi
.el 'nf
..
.\"--------------------------------------------------------
.nr ds*format 0\"	dummy value for .En/.EQ
.nr ds*format! 0\"	no indent
.nr ds*format!0 0\"	no indent
.nr ds*format!L 0\"	no indent
.nr ds*format!I 1\"	indent
.nr ds*format!1 1\"	indent
.nr ds*format!C 2\"	center each line
.nr ds*format!2 2\"	center each line
.nr ds*format!CB 3\"	center as block
.nr ds*format!3 3\"	center as block
.nr ds*format!R 4\"	right justify each line
.nr ds*format!4 4\"	right justify each line
.nr ds*format!RB 5\"	right justify as block
.nr ds*format!5 5\"	right justify as block
.\"---------------
.nr ds*fill! 0\"	no fill
.nr ds*fill!N 0\"	no fill
.nr ds*fill!0 0\"	no fill
.nr ds*fill!F 1\"	fill on
.nr ds*fill!1 1\"	fill on
.\"--------------------------------------------
.\" static display start
.\" nested DS/DE is allowed. No limit on depth.
.de DS
.ds ds@macro \\$0
.br
.nr ds*lvl +1
.ds@set-format \\$@
.\"
.nr ds*old-ll \\n[.l]
.nr ds*old-in \\n[.i]
.misc@push ds-in \\n[ds*old-in] \" Saving indent and line length of
.misc@push ds-ll \\n[ds*old-ll] \" the text outside the display.
.misc@push ds-form \\n[ds*format]
.nr ds*i \\n[.i]
.nr ds*ftmp \\n[.f]
.misc@ev-keep ds*ev!\\n+[ds*snr]
.ft \\n[ds*ftmp]
.\"
.init@reset
.\" indent in a diversion doesn't seem like a good idea.
'in 0
.di ds*div!\\n[ds*snr]
.\"
.nr ds*div-ll \\n[ds*old-ll]
.if \\n[ds*format]=1 .nr ds*div-ll -\\n[Si]n
.ds@set-new-ev \\n[ds*div-ll]
.nr df*float 0
..
.\"--------------------------------------------
.de ds@end
.\" We hard-code the DE macro name here since this macro is internal but
.\" only DE calls it.  We also know we're closing a static keep because
.\" df@end is called otherwise.  See `DE`.
.if \\n-[ds*lvl]<0 .@error DE: no corresponding DS
.br
.di
.\" **********
.nr ds*width \\n[dl]
.nr ds*height \\n[dn]
.misc@pop-nr ds-ll ds*old-ll \" Restore indent and
.misc@pop-nr ds-in ds*old-in \" line length
.misc@pop-nr ds-form ds*format
.\"
.\" **********
'nf
.\" calculate needed space
.nr ds*need \\n[ds*height]
.nr ds*i \\n[pg*foot-trap]-\\n[pg*header-size]u-\\n[pg*extra-header-size]u
.if (\\n[ds*height]>\\n[ds*i])&(\\n[.t]<(\\n[ds*i]/2)) .nr ds*need \\n[.t]u+1v
.if (\\n[ds*height]<\\n[ds*i])&(\\n[.t]<(\\n[ds*height])) .nr ds*need \\n[.t]u+1v
.\"	Eject page if display will fit one page and
.\"	there are less than half of the page left.
.if \\n[ds*need] .ne \\n[ds*need]u
.\"
.\"	Print static display
.nr ds*i \\n[Lsp]
.if r Dsp .nr ds*i \\n[Dsp]
.\"
.if \\n[Ds] .SP \\n[ds*i]u \" Space before display
.\" check if pending equation label
.eq@check \\n[ds*need]
'in \\n[ds*old-in]u
.if \\n[ds*format]=1 'in \\n[ds*old-in]u+\\n[Si]n
.if \\n[ds*format]>=2 'in 0
.if \\n[ds*format]=2 'ce 9999
.if \\n[ds*format]=3 'in (u;(\\n[.l]-\\n[ds*width])/2)
.if \\n[ds*format]=4 'rj 9999
.if \\n[ds*format]=5 'in (u;\\n[.l]-\\n[ds*width])
.\" **********
.\"
.ds*div!\\n[ds*snr]
.if \\n[Ds] .SP \\n[ds*i]u \" Space after display
.\"
.if \\n[ds*format]=2 'ce 0
.if \\n[ds*format]=4 'rj 0
.rm ds*div!\\n[ds*snr]
.nr ds*snr -1
.nr par@suppress-indentation 1	\" no indentation after displays
.ev
..
.\"########### module list ###################
.\" .LI text-indent mark-indent pad type [mark [LI-space [LB-space] ] ]
.\"
.nr li*tind 0
.nr li*mind 0
.nr li*pad 0
.nr li*type 0
.ds li*mark 0
.nr li*li-spc 0
.nr li*lvl 0 1
.aln :g li*lvl
.nr li*cur-vpos 0
.\"--------------------------
.\"	the major list-begin macro.
.\"	If type == -1 a 'break' will occur.
.de LB
.if \\n[.$]<4 .@error \\$0: expected at least 4 arguments, got \\n[.$]
.misc@push cind \\n[.i]
.misc@push tind \\n[li*tind]
.misc@push mind \\n[li*mind]
.misc@push pad \\n[li*pad]
.misc@push type \\n[li*type]
.misc@push li-spc \\n[li*li-spc]
.ds li*mark-list!\\n[li*lvl] \\*[li*mark]
.nr li*lvl +1
.\"
.nr li*tind (n;0\\$1)\"			text-indent
.nr li*mind (n;0\\$2)\"			mark-indent
.nr li*pad (n;0\\$3)\"			pad
.nr li*type 0\\$4\"			type
.ds li*mark \\$5\"			mark
.ie !'\\$6'' .nr li*li-spc \\$6\"	LI-space
.el .nr li*li-spc 1
.ie !'\\$7'' .nr li*lb-spc \\$7\"	LB-space
.el .nr li*lb-spc 0
.\" init listcounter
.nr li*cnt!\\n[li*lvl] 0 1
.\" assign format
.af li*cnt!\\n[li*lvl] 1
.if \\n[li*type] .if !'\\*[li*mark]'' .af li*cnt!\\n[li*lvl] \\*[li*mark]
.\"
.if \\n[li*lb-spc] .SP (u;\\n[li*lb-spc]*\\n[Lsp])
.in +\\n[li*tind]u
..
.\"---------------
.de LI
.if \\n[li*lvl]<1 .@error \\$0: no list active; call AL, BL, BVL, ... \
first
.if \\n[li*li-spc]&(\\n[li*lvl]<=\\n[Ls]) \
.	SP (u;\\n[li*li-spc]*\\n[Lsp])
.ne 2v
.\"
.ds li*c-mark \\*[li*mark]
.nr li*cnt!\\n[li*lvl] +1
.if \\n[li*type]=1 .ds li*c-mark \\n[li*cnt!\\n[li*lvl]].
.if \\n[li*type]=2 .ds li*c-mark \\n[li*cnt!\\n[li*lvl]])
.if \\n[li*type]=3 .ds li*c-mark (\\n[li*cnt!\\n[li*lvl]])
.if \\n[li*type]=4 .ds li*c-mark [\\n[li*cnt!\\n[li*lvl]]]
.if \\n[li*type]=5 .ds li*c-mark <\\n[li*cnt!\\n[li*lvl]]>
.if \\n[li*type]=6 .ds li*c-mark {\\n[li*cnt!\\n[li*lvl]]}
.if \\n[.$]=1 .ds li*c-mark \\$1
.if \\n[.$]=2 \{\
.	ie (\\$2=2):(\\n[Limsp]=0) .ds li*c-mark \\$1\\*[li*c-mark]
.	el .ds li*c-mark \\$1\ \\*[li*c-mark]
.\}
.\"
.\" determine where the text begins
.nr li*text-begin \\n[li*tind]>?\w@\\*[li*c-mark]\ @
.\"
.\" determine where the mark begin
.ie !\\n[li*pad] .nr li*in \\n[li*mind]
.el .nr li*in \\n[li*text-begin]-\\n[li*pad]-\w@\\*[li*c-mark]@
.if !\\n[li*in] .nr li*in 0
.\"
.ti -\\n[li*tind]u
.\" no indentation if hanging indent
.if (\w@\\*[li*c-mark]@=0)&((\\n[.$]=0):(\w@\\$1@=0)) .nr li*text-begin 0
\Z'\&\h'\\n[li*in]u'\\*[li*c-mark]'\h'\\n[li*text-begin]u'\&\c
.if \\n[li*type]=-1 .br
..
.\"
.\"-------------
.de li@pop
.nr li*lvl -1
.misc@pop-nr cind li*tmp
.in \\n[li*tmp]u
.misc@pop-nr tind li*tind
.misc@pop-nr mind li*mind
.misc@pop-nr pad li*pad
.misc@pop-nr type li*type
.misc@pop-nr li-spc li*li-spc
.ds li*mark \\*[li*mark-list!\\n[li*lvl]]
..
.de LE
.if \\n[li*lvl]<1 .@error \\$0: no list active; call AL, BL, BVL, ... \
and LI first
.li@pop
.if '\\$1'1' .SP \\n[Lsp]u
.nr par@suppress-indentation 1	\" no indentation after lists
..
.\"-------------
.\"	list status clear.
.\"	terminate all lists to level i
.de LC
.nr li*i 0
.if \\n[.$] \{\
.	ie \B'\\$1' .nr li*i \\$1
.	el          .@error \\$0: argument not numeric: '\\n[li*i]'
.\}
.if \\n[li*i]>\\n[li*lvl] .@error \\$0 invalid argument: \\n[li*i] \
exceeds depth of nested lists (\\n[li*lvl])
.while \\n[li*lvl]>\\n[li*i] .li@pop
.nr par@suppress-indentation 1	\" no indentation after lists
..
.\"-------------
.de AL
.if \\n[.$]>3 .@warning \\$0: ignoring excess arguments
.if \\n[D]>2 .tm AL $*
.ie \\n[.$]<=1 .LB \\n[Li] 0 2 1 "\\$1"
.el \{\
.	ie \\n[.$]=2 .LB 0\\$2 0 2 1 "\\$1"
.	el \{\
.		ie !'\\$2'' .LB \\$2 0 2 1 "\\$1" 0 1
.		el .LB \\n[Li] 0 2 1 "\\$1" 0 1
.	\}
.\}
..
.de ML
.if \\n[.$]>3 .@warning \\$0: ignoring excess arguments
.if \\n[D]>2 .tm ML $*
.nr li*ml-width \w@\\$1@u+1n
.if \\n[.$]<2 .LB \\n[li*ml-width]u 0 1 0 "\\$1"
.if \\n[.$]=2 .LB 0\\$2 0 1 0 "\\$1"
.if \\n[.$]=3 \{\
.	ie '\\$2'' .LB \\n[li*ml-width]u 0 1 0 "\\$1" 0 1
.	el .LB \\n[Li] 0 1 0 "\\$1" 0 1
.\}
..
.de VL
.if \\n[D]>2 .tm VL $*
.if \\n[.$]>3 .@warning \\$0: ignoring excess arguments
.if \\n[.$]<1 .@error \\$0: expected 1 to 3 arguments, got \\n[.$]
.ie \\n[.$]<3 .LB 0\\$1 0\\$2 0 0
.el .LB 0\\$1 0\\$2 0 0 \& 0 1
..
.de BL
.if \\n[D]>2 .tm BL $*
.if \\n[.$]>2 .@warning \\$0: ignoring excess arguments
.if \\n[.$]<1 .LB \\n[Pi] 0 1 0 \\*[BU]
.if \\n[.$]=1 .LB 0\\$1 0 1 0 \\*[BU]
.if \\n[.$]=2 \{\
.	ie '\\$1'' .LB \\n[Pi] 0 1 0 \\*[BU] 0 1
.	el .LB 0\\$1 0 1 0 \\*[BU] 0 1
.\}
..
.de DL
.if \\n[D]>2 .tm DL $*
.if \\n[.$]>2 .@warning \\$0: ignoring excess arguments
.if \\n[.$]<1 .LB \\n[Pi] 0 1 0 \[em]
.if \\n[.$]=1 .LB 0\\$1 0 1 0 \[em]
.if \\n[.$]=2 \{\
.	ie '\\$1'' .LB \\n[Pi] 0 1 0 \[em] 0 1
.	el .LB 0\\$1 0 1 0 \[em] 0 1
.\}
..
.de RL
.if \\n[D]>2 .tm RL $*
.if \\n[.$]>2 .@warning \\$0: ignoring excess arguments
.if \\n[.$]<1 .LB 6 0 2 4
.if \\n[.$]=1 .LB 0\\$1 0 2 4
.if \\n[.$]=2 \{\
.	ie '\\$1'' .LB 6 0 2 4 1 0 1
.	el .LB 0\\$1 0 2 4 1 0 1
.\}
..
.\" Broken Variable List. As .VL but text begin on the next line
.de BVL
.if \\n[D]>2 .tm BVL $*
.if \\n[.$]>3 .@warning \\$0: ignoring excess arguments
.if \\n[.$]<1 .@error \\$0: expected 1 to 3 arguments, got \\n[.$]
.ie \\n[.$]<3 .LB 0\\$1 0\\$2 0 -1
.el .LB 0\\$1 0\\$2 0 -1 \& 0 1
..
.\" ####### module tbl #######################################
.\" This module is copied from groff_ms and modified for mm.
.\" Yes, it does not resemble the original anymore :-).
.\" Don't know if I missed something important.
.\" Groff_ms is written by James Clark.
.nr tbl*have-header 0
.nr tbl*header-written 0
.de TS
.br
.if ''\\n[.z]' .SP
.if '\\$1'H' .di tbl*header-div
..
.de tbl@top-hook
.if \\n[tbl*have-header] \{\
.	ie \\n[.t]-\\n[tbl*header-ht]-1v .tbl@print-header
.	el .sp \\n[.t]u
.\}
..
.de tbl@bottom-hook
.if \\n[tbl*have-header] \{\
.	nr T. 1
.\" draw bottom and side lines of boxed tables.
.	T#
.\}
.nr tbl*header-written 0
..
.de tbl@print-header
.ev tbl*ev
'nf
.tbl*header-div
.ev
.mk #T
.nr tbl*header-written 1
..
.de TH
.ie '\\n[.z]'tbl*header-div' \{\
.	nr T. 0
.	T#
.	br
.	di
.	nr tbl*header-ht \\n[dn]
.	ne \\n[dn]u+1v
.	nr tbl*have-header 1
.	ie '\\$1'N' .if !\\n[tbl*header-written] .tbl@print-header
.	el .tbl@print-header
.\}
.el .@error \\$0: .TH without .TS H"
..
.de TE
.ie '\\n[.z]'tbl*header-div' .@error \\$0: .TS H but no .TH before .TE
.el \{\
.	nr tbl*have-header 0
.\}
.\" reset tabs
.TAB
..
.de T&
..
.\" ####### module pic #######################################
.de PS
.if !\\n[.$]=2 \{\
.	ds pic*msg \\$0: expected 2 arguments, got \\n[.$]\"
.	as pic*msg ; not preprocessed with pic?\"
.	@error \\*[pic*msg]
.\}
.br
.SP .5
.if r ds*format .if !\\n[ds*lvl] .ne (u;\\$1)+1v
..
.de PY
.init@reset
..
.de PE
.PY
.SP .5
..
.\" ####### module eq #######################################
.\"
.nr eq*number 0 1
.ds eq*label
.de EQ
.ds eq*label "\\$1
..
.de eq@check
.if !'\\*[eq*label]'' \{\
.	mk
.	\" space down to middle of equation
'	sp (u;(\\$1-1v)/2)
.	ie (\\n[Eq]%2) \{\
.		\"	label to the left
\h'|0'\\*[eq*label]
.	\}
.	el \{\
.		\"	label to the right, possibly compensating for
.		\"	indented display
.		ie \\n[ds*format]=1 \
\h'|\\n[.l]u-\w'\\*[eq*label]'u+\\n[Si]n'\\*[eq*label]
.		el \h'|\\n[.l]u-\w'\\*[eq*label]'u'\\*[eq*label]
.	\}
.	rt
.\}
.ds eq*label
..
.de EN
..
.\"########### module toc ###################
.\" table of contents
.nr toc*slevel 1
.nr toc*spacing \n[Lsp]u
.nr toc*tlevel 2
.nr toc*tab 0
.\"-----------
.\" Table of contents with friends (module lix)
.de TC
.br
.\" print any pending displays and references
.df@print-float 3
.if \\n[ref*flag] .RP 0 1
.\"
.if \w@\\$1@>0 .nr toc*slevel \\$1
.if \w@\\$2@>0 .nr toc*spacing (u;\\$2*\\n[Lsp])
.if \w@\\$3@>0 .nr toc*tlevel \\$3
.if \w@\\$4@>0 .nr toc*tab \\$4
.if \\n[pg*cols-per-page]>1 .1C
.ds H1txt \\*[Licon]
.ds Tcst co
.pg@clear-hd
.EF ""
.OF ""
.pg@next-page
.\"-------------
.if d Ci .toc@read-Ci \\*[Ci]
.nf
.in 0
.ie \\n[Oc] .hd@set-page 1
.el \{\
.	nr toc*pn 1 1
.	af toc*pn i
.	aln ;g toc*pn
.	PF "''\\\\\\\\n[toc*pn]''"
.	am pg@header
.		nr toc*pn +1
\\..
.\}
.nr toc*i 4 1
.while \\n+[toc*i]<10 \{\
.	if !'\\$\\n[toc*i]'' \{\
.		ce
\\$\\n[toc*i]
.		br
.	\}
.\}
.if \\n[.$]<=4 .if d TX .TX
.ie d TY .if \\n[.$]<=4 .TY
.el \{\
.	ce
\\*[Licon]
.	br
.	SP 3
.\}
.if d toc*list .toc*list
.br
.\" print LIST OF XXX
.if d lix*dsfg .lix@print-ds fg FG "\\*[Lf]" \\n[.$]
.if d lix*dstb .lix@print-ds tb TB "\\*[Lt]" \\n[.$]
.if d lix*dsec .lix@print-ds ec EC "\\*[Le]" \\n[.$]
.if d lix*dsex .lix@print-ds ex EX "\\*[Lx]" \\n[.$]
..
.\"-----------
.\" .toc@read-Ci lev1 lev2 lev3 lev4 ... lev7
.de toc@read-Ci
.nr toc*i 0 1
.while \\n+[toc*i]<15 \{\
.	nr toc*hl!\\n[toc*i] \\$[\\n[toc*i]]
.\}
..
.\"-----------
.de toc@entry
.ie \\n[Sectp] \{\
.	toc@save \\$1 "\\*[hd*mark]" "\\$2" \\*[hd*sect-pg]
.\}
.el .toc@save \\$1 "\\*[hd*mark]" "\\$2" \\n[P]
..
.als )E toc@entry
.\"-----------
.de toc@save
.\" collect maxsize of mark if string Ci don't exist.
.if !d Ci \{\
.	if !r toc*hl!\\$1 .nr toc*hl!\\$1 0
.	if \\n[toc*hl!\\$1]<=\w@\\$2@ \{\
.		nr toc*hl!\\$1 \w@\\$2@u
.	\}
.\}
.am toc*list
.\" .toc@set level headernumber text pagenumber
.toc@set \\$1 "\\$2" "\\$3" \\$4
\\..
..
.\"-----------
.\" level mark text pagenumber
.de toc@set
.if \\$1<=\\n[toc*slevel] .SP \\n[toc*spacing]u
.na
.fi
.nr toc*ind 0
.nr toc*i 0 1
.ie d Ci \{\
.	nr toc*ind +\\n[toc*hl!\\$1]u
.\}
.el \{\
.	while \\n+[toc*i]<\\$1 \{\
.		nr toc*ind +\\n[toc*hl!\\n[toc*i]]u
.	\}
.\}
.nr toc*text \\n[toc*ind]u+\\n[toc*hl!\\$1]u
.in \\n[toc*text]u
.ti -\\n[toc*hl!\\$1]u
.\"
.\" length of headernumber space
.nr toc*i \\n[toc*hl!\\$1]-\w@\\$2@
.\"
.ll \\n[@ll]u-\w@\\$4@u-2m
.ne 2v
.\" ragged right ---------------------------------
.ie \\$1>\\n[toc*tlevel] \{\
\\$2
.	sp -1
\\$3\ \ \ \\$4
.	br
.\}
.el \{\
.	\" unnumbered heading --------------------
.	ie '\\$2'' \{\
.		in \\n[toc*ind]u
\\$3\h'1m'
.	\}
.	\" normal heading ------------------------
.	el \{\
\\$2
.		sp -1
\\$3\h'1m'
.	\}
.	ll \\n[@ll]u
.	sp -1
.	nr toc*sep (u;\\n[.l]-\\n[.n]-\\n[.i]-\w@\\$4@)-1m
\h'|\\n[.n]u'\l'\\n[toc*sep]u.'\h'1m'\\$4
.\}
.ll \\n[@ll]u
..
.\"########################### module lix ############################
.\" LIST OF figures, tables, exhibits and equations
.nr lix*fg-nr 0 1
.nr lix*tb-nr 0 1
.nr lix*ec-nr 0 1
.nr lix*ex-nr 0 1
.aln Fg lix*fg-nr
.aln Tb lix*tb-nr
.aln Ec lix*ec-nr
.aln Ex lix*ex-nr
.\"------------
.de FG
.lix@print-line fg Lf \\n+[lix*fg-nr] "\\$1" "\\$2" "\\$3" "\\$4"
..
.de TB
.lix@print-line tb Lt \\n+[lix*tb-nr] "\\$1" "\\$2" "\\$3" "\\$4"
..
.de EC
.lix@print-line ec Le \\n+[lix*ec-nr] "\\$1" "\\$2" "\\$3" "\\$4"
..
.de EX
.lix@print-line ex Lx \\n+[lix*ex-nr] "\\$1" "\\$2" "\\$3" "\\$4"
..
.\"------------
.\" print line with 'figure' in the text
.\" type stringvar number text override flag refname
.de lix@print-line
.ds lix*text "\\$4
.\"
.ie \\n[Sectf] .ds lix*numb \\n[H1]-\\$3
.el .ds lix*numb \\$3
.\"
.ie !\\n[Of] .ds lix*ds-form .\ \ \"
.el .ds lix*ds-form "\ \[em]\ \"
.nr lix*in \\n[.i]
.ds lix*label \\*[Li\\$1]\ \\*[lix*numb]\\*[lix*ds-form]
.if !'\\$5'' \{\
.	if !0\\$6 .ds lix*label \\*[Li\\$1]\ \\$5\\*[lix*numb]\\*[lix*ds-form]
.	if 0\\$6=1 .ds lix*label \\*[Li\\$1]\ \\*[lix*numb]\\$5\\*[lix*ds-form]
.	if 0\\$6=2 .ds lix*label \\*[Li\\$1]\ \\$5\\*[lix*ds-form]
.\}
.\" print line if not between DS/DE
.ie (\\n[ds*lvl]<1)&(\\n[df*float]=0) \{\
.	lix@print-text "\\*[lix*label]" "\\*[lix*text]" \\$1 \\$2 \\$7
.\}
.el \{\
.	lix@embedded-text "\\*[lix*label]" "\\*[lix*text]" \\$1 \\$2 \\$7
.\}
.\"
..
.\"-----------
.\" label text type stringvar refname
.de lix@print-text
.ie \\n[Sectp] .ds lix*pgnr \\*[hd*sect-pg]
.el .ds lix*pgnr \\n[%]
.SP \\n[Lsp]u
.misc@ev-keep lix
.init@reset
.br
.ie (\w@\\$1\\$2@)>(\\n[.l]-\\n[.i]) \{\
.	in +\w@\\$1@u
.	ti 0
.\}
.el .ce 1
\f3\\$1\fP\\$2
.br
.ev
.\" save line for LIST OF XXX, wth is the width of the label
.if !r lix*wth\\$3 .nr lix*wth\\$3 0
.\" find the maximum width
.if \w@\\*[lix*label]@>\\n[lix*wth\\$3] .nr lix*wth\\$3 \w@\\*[lix*label]@
.if \\n[\\$4] .lix@ds-save \\$3 \\*[lix*pgnr] "\\*[lix*text]" "\\*[lix*label]"
.\" save reference to the figure
.if !'\\$5'' .SETR \\$5 \\*[lix*numb]
..
.\" hide printout until diversion is evaluated
.de lix@embedded-text
\!.ie \\\\n[Sectp] .ds lix*pgnr \\\\*[hd*sect-pg]
\!.el .ds lix*pgnr \\\\n[%]
\!.SP \\\\n[Lsp]u
\!.misc@ev-keep lix
\!.ll \\n[.l]u
\!.init@reset
\!.fi
\!.ie (\w@\\$1\\$2@)>(\\\\n[.l]-\\\\n[.i]) \{\
.	in +\w@\\$1@u
\!.	ti 0
\!\f3\\$1\fP\\$2
\!.\}
\!.el \{\
.	ce 1
\!\f3\\$1\fP\\$2
\!.\}
\!.br
\!.ev
.\" save line for LIST OF XXX, wth is the width of the label
\!.if !r lix*wth\\$3 .nr lix*wth\\$3 0
.\" find the maximum width
\!.if \w@\\*[lix*label]@>\\\\n[lix*wth\\$3] .nr lix*wth\\$3 \w@\\*[lix*label]@
\!.if \\\\n[\\$4] .lix@ds-save \\$3 \\\\*[lix*pgnr] "\\*[lix*text]" "\\*[lix*label]"
.\" save reference to the figure
\!.if !'\\$5'' .SETR \\$5 \\*[lix*numb]
..
.\"------------
.\" print complete list of XXXX
.de lix@print-ds
.\" arg: fg,tb,ec,ex text
.ds H1txt \\$3
.ds Tcst \\$1
.if !\\n[Cp] .pg@next-page
.\" print LIST OF XXXX
.\" execute user-defined macros
.if \\$4<=4 .if d TX\\$2 .TX\\$2
.ie d TY\\$2 .if \\$4<=4 .TY\\$2
.el \{\
.	ce
\\$3
.	SP 3
.\}
.in \\n[lix*wth\\$1]u
.fi
.lix*ds\\$1
..
.\"------------
.\" save line of list in macro
.de lix@ds-save
.\" type pagenumber text
.am lix*ds\\$1
.lix@dsln \\$1 \\$2 "\\$3" "\\$4" \\$5
\\..
..
.\"------------
.\" print appended macro
.\" lix@dsln type pagenumber text headernumber
.de lix@dsln
.nr lix*i \\n[lix*wth\\$1]-\w@\\$4@
.ne 4v
.ll \\n[@ll]u-\w@\\$4@u-\w@\\$2@u-2m
.ti -\\n[lix*wth\\$1]u
\\$4
.sp -1
\\$3\h'1m'
.sp -1
.ll
.nr lix*sep (u;\\n[.l]-\\n[.n]-\\n[.i]-\w@\\$2@)-1m
\h'|\\n[.n]u'\l'\\n[lix*sep]u.'\h'1m'\\$2
.SP \\n[toc*spacing]u
..
.\"########################### module fnt ############################
.\" some font macros.
.\"-----------
.de fnt@switch
.ul 0
.ds fnt*tmp
.nr fnt*prev \\n[.f]
.nr fnt*i 2 1
.while \\n+[fnt*i]<=\\n[.$] \{\
.	if \\n[fnt*i]>3 .as fnt*tmp \,
.	ie (\\n[fnt*i]%2)=1 .as fnt*tmp \\$1\\$[\\n[fnt*i]]
.	el .as fnt*tmp \\$2\\$[\\n[fnt*i]]
.	if \\n[fnt*i]<\\n[.$] .as fnt*tmp \/
.\}
\&\\*[fnt*tmp]\f[\\n[fnt*prev]]
..
.\"-----------
.de B
.ie \\n[.$] .fnt@switch \f3 \f[\\n[.f]] \\$@
.el .ft 3
..
.de I
.ie \\n[.$] .fnt@switch \f2 \f[\\n[.f]] \\$@
.el .ft 2
..
.de R
.ie \\n[.$] .fnt@switch \f1 \f[\\n[.f]] \\$@
.el .ft 1
..
.de IB
.if \\n[.$] .fnt@switch \f2 \f3 \\$@
..
.de BI
.if \\n[.$] .fnt@switch \f3 \f2 \\$@
..
.de IR
.if \\n[.$] .fnt@switch \f2 \f1 \\$@
..
.de RI
.if \\n[.$] .fnt@switch \f1 \f2 \\$@
..
.de RB
.if \\n[.$] .fnt@switch \f1 \f3 \\$@
..
.de BR
.if \\n[.$] .fnt@switch \f3 \f1 \\$@
..
.\"########################### module box ############################
.\" draw a box around some text. Text will be kept on the same page.
.\"
.nr box*ll 0
.\" .B1 and .B2 works like .DS
.de B1
.if \\n[box*ll] .@error \\$0: cannot nest; missing B2?
.nr box*ll \\n[.l]
.nr box*ind \\n[.i]
.nr box*hyp \\n[.hy]
.nr box*wid \\n[.l]-\\n[.i]
.\"
.\" jump to new environment.
.ev box*ev
.di box*div
.ps \\n[@ps]u
.vs \\n[@vs]u
.in 1n
.ll (u;\\n[box*wid]-1n)
.hy \\n[.hy]
..
.de B2
.if !\\n[box*ll] .@error \\$0: no corresponding B1
.br
.di
.nr box*height \\n[dn]
.ne \\n[dn]u+1v
.ll \\n[box*ll]u
.in \\n[box*ind]u
.nr box*y-pos \\n[.d]u
.nf
.box*div
.fi
\v'-1v+.25m'\
\D'l \\n[box*wid]u 0'\
\D'l 0 -\\n[box*height]u'\
\D'l -\\n[box*wid]u 0'\
\D'l 0 \\n[box*height]u'
.br
.sp -1
.ev
.sp .20v
.in \\n[box*ind]u
.ll \\n[box*ll]u
.rm box*div
.nr box*ll 0
..
.\"########################### module ref ############################
.mso refer-mm.tmac
.nr ref*nr 0 1
.aln :R ref*nr
.nr ref*nr-width 5n
.nr ref*flag 0		\" for end-of-text
.ds Rf \v'-.4m'\s-3[\\n+[ref*nr]]\s0\v'.4m'
.\"
.\" start reference
.\"------------
.de RS
.if !''\\$1' .ds \\$1 \v'-.4m'\s-3[\\n[ref*nr]]\s0\v'.4m'
.nr ref*flag 1
.am ref*mac
.ref@start-print \\n[ref*nr].
\\..
.eo
.am ref*mac RF
..
.\"------------
.de RF
.ec
.am ref*mac
.ref@stop-print
\\..
..
.\"------------
.de ref@start-print
.di ref*div
.in \\n[ref*nr-width]u
.ti -(\w@\\$1@u+1n)
\\$1
.sp -1
..
.de ref@stop-print
.br
.di
.ne \\n[dn]u
.ev ref*ev2
.nf
.ref*div
.ev
.rm ref*div
.if \\n[Ls] .SP \\n[Lsp]u
..
.\"-----------
.de RP
.if !d ref*mac \{\
.	@warning \\$0: ignoring; no references defined
.	return
.\}
.ie !''\\$2' .nr ref*i 0\\$2
.el .nr ref*i \\n[Rpe]
.if \\n[ref*i]<2 .SK
.SP 2
.ref@print-refs
.if 0\\$1<1 .nr ref*nr 0 1
.if ((\\n[ref*i]=0):(\\n[ref*i]=2)) .SK
..
.\"-----------
.\" called by end-of-text!
.de ref@eot-print
.\".if \\n[ref*flag] \{\
.if d ref*mac \{\
.	if \\n[D]>2 .tm Print references, called by eot
.	nr ref*flag 0
.	br
.	misc@ev-keep ne
.	init@reset
\c
'	bp
.	ev
.	ref@print-refs
.\}
..
.\"-----------
.\" prints the references
.de ref@print-refs
.toc@save 1 "" "\\*[Rp]" \\n[%]
.ce
\f2\\*[Rp]\fP
.sp
.nr ref*ll \\n[.l]
.misc@ev-keep ref*ev
.ll \\n[ref*ll]u
.in 0
.ref*mac
.in
.rm ref*mac
.ev
.nr ref*flag 0 1
..
.\"########################### module app ############################
.\"
.nr app*nr 0 1
.af app*nr A
.nr app*dnr 0 1
.nr app*flag 0
.\"------------
.\" .APP name text
.\" name == "" -> autonumber
.de APP
.\" .if \\n[.$]<2 .@error "APP: too few arguments"
.app@set-ind "\\$1"
.\"
.ds Tcst ap
.ds Apptxt \\$2
.\"
.ie \\n[Aph] .app@header \\*[app*ind] "\\$2"
.el .bp
.app@index "\\*[app*ind]" "\\$2"
..
.\"------------
.\" .APPSK name pages text
.\" name == "" -> autonumber
.de APPSK
.if \\n[.$]<2 .@error \\$0: expected 2 or 3 arguments, got \\n[.$]
.app@set-ind "\\$1"
.\"
.ds Tcst ap
.ds Apptxt \\$3
.\"
.ie \\n[Aph] .app@header \\*[app*ind] "\\$3"
.el .bp
.app@index "\\*[app*ind]" "\\$3"
.pn +\\$2
..
.\"------------
.de app@set-ind
.ie \w@\\$1@ .ds app*ind \\$1
.el \{\
.	if !\\n[app*flag] \{\
.		nr H1 0 1
.		af H1 A
.		af H1h A
.		nr app*flag 1
.	\}
.	ds app*ind \\n+[app*nr]
.	nr H1 \\n+[app*dnr]
.	nr H1h \\n[app*dnr]
.\}
.\"	clear lower counters
.nr app*i 1 1
.while \\n+[app*i]<15 .nr H\\n[app*i] 0 1
..
.\"------------
.de app@index
.toc@save 1 "" "\\*[App] \\$1: \\$2" \\n[%]
..
.\"------------
.\" app@header name text
.de app@header
.bp
.SP (u;\\n[Lsp]*4)
.ce 1
\s+4\f3\\*[App]\ \\$1\fP\s0
.SP (u;\\n[Lsp]*2)
.if \w@\\$2@<\\n[.l] .ce 1
\f3\s+2\\$2\s0\fP
.SP (u;\\n[Lsp]*4)
..
.als APPX app@header
.\"########################### module cov ############################
.\" title stored in diversion cov*title
.\" abstract stored in diversion cov*abstract
.\"	arg to abstract stored in cov*abs-arg
.\"	indent stored in cov*abs-ind
.\" number of authors stored in cov*au
.\" author(s) stored in cov*au!x!y
.\" number of authors' titles stored in cov*at!x
.\" title(s) of author(s) stored in cov*at!x!y
.\" 	x is the author-index [1-cov*au], y is the argument-index [1-9].
.\" author(s) firm stored in cov*firm
.\" new date (if .ND exists) is stored in cov*new-date
.\"
.\"
.ds cov*abs-name ABSTRACT
.\"
.nr cov*au 0
.de TL
.ds @cover \\$0
.@disable IA IE WA WE LO LT \" can't use with LT and friends
.if \\n[.$]>0 .ds cov*title-charge-case \\$1
.if \\n[.$]>1 .ds cov*title-file-case \\$2
.pg@disable-top-trap
.eo
.de cov*title AU
..
.\"-------------------
.de cov@title-end
.ec
..
.\"-------------------
.\" .AU [name [initials [loc [dept [ext [room [arg [arg [arg]]]]]]]]]
.de AU
.cov@title-end
.if !\\n[.$] .return \" AU is being used only to end a TL.
.pg@disable-top-trap
.nr cov*au +1
.nr cov*at!\\n[cov*au] 0 \" no titles for this author yet
.nr cov*i 0 1
.ds cov*au!\\n[cov*au]!1
.while \\n[.$]>=\\n+[cov*i] \{\
.	ds cov*au!\\n[cov*au]!\\n[cov*i] "\\$[\\n[cov*i]]
.\}
.if (\\n[.$]>=3)&(\w@\\$3@) \{\
.	if d cov*location-\\$3] \{\
.		ds cov*au!3!\\n[cov*au] \\*[cov*location-\\$3]
.	\}
.\}
..
.\"-------------------
.\" .AT title [...]
.\" Any quantity of titles may be declared.
.\" Must be called directly after the corresponding .AU.
.de AT
.if !\\n[.$] \{\
.	@warning \\$0: ignoring; no arguments specified
.	return
.\}
.nr cov*at!\\n[cov*au] \\n[.$]
.nr cov*i 0 1
.while \\n[.$]>=\\n+[cov*i] \{\
.	ds cov*at!\\n[cov*au]!\\n[cov*i] "\\$[\\n[cov*i]]
.\}
..
.\"-------------------
.de AF
.cov@title-end
.if !''\\$1' .ds cov*firm \\$1
..
.de AST
.ds cov*abs-name "\\$1\"
..
.de AS
.pg@disable-top-trap
.if d cov*abstract .@error \\$0: only one abstract allowed
.if !''\\n[.z]' .@error \\$0: no diversion allowed (previous .AS?)
.nr cov*abs-arg 0\\$1
.nr cov*abs-ind (n;0\\$2)
.de cov*abstract AE
..
.de AE
..
.\" fixed for 2000, now uses \n[year].
.de ISODATE
.	\" support for ISO-date
.	nr cov*mm \\n[mo]
.	nr cov*dd \\n[dy]
.	af cov*mm 01
.	af cov*dd 01
.	ie '0'\\$1' \{\
.		ds cov*new-date \\*[MO\\n[mo]] \\n[dy], \\n[year]
.	\}
.	el \{\
.		ds cov*new-date \\n[year]-\\n[cov*mm]-\\n[cov*dd]
.	\}
..
.ISODATE 0
.als DT cov*new-date
.de ND
.ds cov*new-date \\$1
..
.\" switch to ISO-date if register Iso exist: YYYY-MM-DD
.if r Iso .ISODATE 1
.\"-------------------
.\" Save technical memorandum numbers.
.de TM
.if !\\n[.$] \{\
.	@warning \\$0: ignoring; no arguments specified
.	return
.\}
.nr cov*i 0 1
.while \\n[.$]>=\\n+[cov*i] .ds cov*mt-tm!\\n[cov*i] \\$[\\n[cov*i]]
.nr cov*mt-tm-max \\n[.$]
..
.\"-----------------------
.\" cover sheet
.\" the file must have the following last lines (somewhere):
.\" .pg@enable-top-trap
.\" .bp 1
.\" .pg@enable-trap
.ds cov*mt-file!0 0.MT
.ds cov*mt-file!1 0.MT
.ds cov*mt-file!2 0.MT
.ds cov*mt-file!3 0.MT
.ds cov*mt-file!4 4.MT
.ds cov*mt-file!5 5.MT
.ds cov*mt-file!6 0.MT
.\"------------
.de MT
.ds @cover \\$0
.@disable COVER IA IE WA WE LO LT
.ie \\n[.$] \{\
.	ie d cov*mt-file!\\$1 .ds cov*mt-type \\$1
.	el .ds cov*mt-type 6
.\}
.el .ds cov*mt-type 1
.ds cov*mt-addressee "\\$2
.ds cov*mt-type-text "\\$1
.ie d @country .ds cov*str mm/\\*[@country]_
.el .ds cov*str mm/
.mso \\*[cov*str]\\*[cov*mt-file!\\*[cov*mt-type]]
..
.de COVER
.ds @cover \\$0
.@disable IA IE WA WE LO LT MT
.ie !\\n[.$] .ds cov*cov-type ms
.el .ds cov*cov-type \\$1
.pg@disable-top-trap
.ie d @country .ds cov*str mm/\\*[@country]_\\*[cov*cov-type].cov
.el .ds cov*str mm/\\*[cov*cov-type].cov
.mso \\*[cov*str]
..
.\"########################### module qrf ############################
.\" forward and backward reference thru special files.
.\"
.\" check if stderr-method is wanted
.\" This was needed when I discovered that groff was considered unsafe
.\" and groff -U didn't work. It's a workaround like the original
.\" index method, but not in my view elegant enough.
.\"
.\" init reference system
.de INITR
.ds qrf*file \\$1.qrf
.nr qrf*pass 2
.if \\n[D]>1 .tm INITR: source \\*[qrf*file]
.ie \\n[Ref] \{\
.	tm .\\\\" Rfilename: \\*[qrf*file]
.\}
.el 'so  \\*[qrf*file]
..
.\"---------------
.\" set a reference.
.de SETR
.if \\n[.$]<1 .@error \\$0: expected 1 or 2 arguments, got \\n[.$]
.if !r qrf*pass .tm \\$0: no .INITR in this file \" XXX: .@error?
.if \\n[Ref] \{\
.	ds qrf*name qrf*ref-\\$1
.	if \\n[D]>2 .tm SETR: ref \\*[qrf*name]=\\*[hd@mark-trimmed],\\n[%]
.	\" heading-number
.	ds \\*[qrf*name]-hn \\*[hd@mark-trimmed]
.	\" page-number
.	ds \\*[qrf*name]-pn \\n[%]
.	\"
.	if \\n[Ref] \{\
.		tm .ds \\*[qrf*name]-hn \\*[hd@mark-trimmed]
.		tm .ds \\*[qrf*name]-pn \\n[%]
.		if !'\\$2'' .tm .ds \\*[qrf*name]-xx \\$2
.	\}
.\}
..
.\"---------------
.\" get misc-string
.\" If two arg -> set var. arg to misc-string.
.de GETST
.if \\n[.$]<1 .@error \\$0: expected 1 or 2 arguments, got \\n[.$]
.if !r qrf*pass .tm \\$0: no .INITR in this file \" XXX: .@error?
.ds qrf*name qrf*ref-\\$1
.	if d \\*[qrf*name]-xx \{\
.		ie \\n[.$]>1 .ds \\$2 \\*[\\*[qrf*name]-xx]
.		el \\*[\\*[qrf*name]-xx]\c
.	\}
.\}
..
.\"---------------
.\" get header-number
.\" If two arg -> set var. arg to header-number.
.de GETHN
.if \\n[.$]<1 .@error \\$0: expected 1 or 2 arguments, got \\n[.$]
.if !r qrf*pass .tm \\$0: no .INITR in this file \" XXX: .@error?
.ds qrf*name qrf*ref-\\$1
.if d \\*[qrf*name]-hn \{\
.	ie \\n[.$]>1 .ds \\$2 \\*[\\*[qrf*name]-hn]
.	el \\*[\\*[qrf*name]-hn]\c
.\}
..
.\"---------------
.\" get page-number
.\" If two arg -> set var. arg to page-number.
.de GETPN
.if \\n[.$]<1 .@error \\$0: expected 1 or 2 arguments, got \\n[.$]
.if !r qrf*pass .tm \\$0: no .INITR in this file \" XXX: .@error?
.ds qrf*name qrf*ref-\\$1
.if d \\*[qrf*name]-pn \{\
.	ie \\n[.$]>1 .ds \\$2 \\*[\\*[qrf*name]-pn]
.	el \\*[\\*[qrf*name]-pn]\c
.\}
..
.\"----------
.de GETR
.if \\n[.$]<1 .@error \\$0: expected an argument
.ie !r qrf*pass .tm \\$0: no .INITR in this file" \" XXX: .@error?
.el \{\
.	GETHN \\$1 Qrfh
.	GETPN \\$1 Qrfp
\\*[Qrf]
.\}
..
.\"########################### module ind ############################
.\"--------------------
.\" Another type of index system
.\" INITI type filename [macro]
.de INITI
.if \\n[.$]<2 .@error \\$0: expected 2 or 3 arguments, got \\n[.$]
.\" ignore if INITI has already been used
.if d ind*file .@error \\$0: index file name already set
.ds ind*file \\$2.ind
.if \\n[D]>1 .tm INITI: source \\*[ind*file]
.if !d ind*file .@error \\$0: index file name not specified
.ds ind*type \\$1
.if \\n[Ref] \{\
.	if \\n[.$]>2 .tm .\\\\" Imacro: \\$3
.\}
..
.\"---------------
.de IND
.if !d ind*file .@error \\$0: no active index; call INITI"
.if \\n[D]>1 .tm IND: type=\\*[ind*type]
.ds ind*ref \" empty
.if '\\*[ind*type]'N' .ds ind*ref \\n[%]
.if '\\*[ind*type]'H' .ds ind*ref \\*[hd*mark]
.if '\\*[ind*type]'B' .ds ind*ref \\*[hd*mark]\t\\n[%]
.if '\\*[ind*ref]'' .@abort invalid index type '\\*[ind*type]'
.\"
.ds ind*line \\$1
.while \\n[.$]>0 \{\
.	shift
.	as ind*line \t\\$1
.\}
.as ind*line \\*[ind*ref]
.if \\n[Ref] .tm .\\\\" IND \\*[ind*line]
..
.\" print index
.de INDP
.ie \\n[Ref] .tm .\\\\" Index: \\*[ind*file]
.el \{\
.	if !\\n[Cp] .pg@next-page
.	\" print INDEX
.	\" execute user-defined macros
.	if d TXIND .TXIND
.	ie d TYIND .TYIND
.	el \{\
.		SK
.		ce
\\*[Index]
.		SP 3
.		2C
.		nf
.	\}
'	so  \\*[ind*file]
.	ie d TZIND .TZIND
.	el \{\
.		fi
.		1C
.	\}
.\}
.rm ind*file
..
.\"########################### module let ############################
.\" Letter macros
.\"------------------------
.\" Formal closing
.de FC
.df@print-float 3
.ie \\n[.$] .ds let*i \\$1
.el .ds let*i \\*[Letfc]
.ie d let*type .let@fc_\\*[let*type] "\\*[let*i]" \\$@
.el .let@mt-closing "\\*[let*i]" \\$@
..
.\"-------
.de let@mt-closing
.ne 5v
.in (u;\\n[.l]/2)
.sp
\\$1
.in
..
.\"------------------------
.\" Signature line
.de SG
.ie d let*type .let*lt-sign \\$@
.el .let*mt-sign \\$@
..
.\"------------------------
.de let*lt-sign
.\" We hard-code the SG macro name here since this macro is internal but
.\" only SG calls it.
.if !d let@sg_\\*[let*type] .@error SG: letter type '\\*[let*type]' \
undefined
.df@print-float 3
.nr let*i 0 1
.nr let*j 0
.while \\n+[let*i]<=\\n[let*wa-n] \{\
.if \\n[let*i]=\\n[let*wa-n] .nr let*j 1
.let@sg_\\*[let*type] "\\*[let*wa-name!\\n[let*i]]" "\\*[let*wa-title!\\n[let*i]]" \\n[let*i] \\n[let*j] \\$@
.\}
..
.\"------------------------
.\" Memorandum signature
.de let*mt-sign
.df@print-float 3
.ne \\n[cov*au]u*4v
.ie \\n[.$]>1 .nr let*k 1
.el .nr let*k \\n[cov*au]
.ds let*tmp \" empty
.if d cov*au!\\n[let*k]!3 \{\
.	as let*tmp \\*[cov*au!\\n[let*k]!3]\"
.	if d cov*au!\\n[let*k]!4 \
.		as let*tmp -\\*[cov*au!\\n[let*k]!4]-\"
.\}
.nr let*i 0 1
.while \\n+[let*i]<=\\n[cov*au] \{\
.	if \\n[let*i]>1 .as let*tmp /\"
.	if d cov*au!\\n[let*i]!2 .as let*tmp \\*[cov*au!\\n[let*i]!2]\"
.\}
.if !''\\$1' .as let*tmp -\\$1
.in (u;\\n[.l]/2)
.nf
.nr let*i 0 1
.while \\n+[let*i]<=\\n[cov*au] \{\
.	ne 3v+\\n[cov*at!\\n[let*i]]v
.	SP 3v
.	if \\n[let*i]=\\n[let*k] \{\
\Z'\h'-(u;\\n[.l]/2)'\\*[let*tmp]'\c
.	\}
\\*[cov*au!\\n[let*i]!1]
.	nr let*j 0 1
.	while \\n+[let*j]<=\\n[cov*at!\\n[let*i]] \{\
\\*[cov*at!\\n[let*i]!\\n[let*j]]
.	\}
.\}
.fi
.in
..
.\"------------------------
.\" Approval signature
.de AV
.ne 6v
.nf
.sp
.ie \\n[.$]<2 \\*[Letapp]
.el .sp
.sp 2
.ie n ______________________________      ______________
.el \D'l 25m 0'\h'4m'\D'l 12m 0'
\Z'\\$1'\h'29m'\f[\\*[@sdf_font]]\\*[Letdate]\fP
.fi
..
.\"------------------------
.\" Letter signature
.de AVL
.ne 6v
.nf
.sp 3
.ie n ______________________________
.el \D'l 25m 0'
\Z'\\$1'
.fi
..
.\"------------------------
.\" Letter type
.\" let@header is called from the header. It is supposed
.\" to remove the alias itself.
.de LT
.ds @cover LT
.@disable AF AS AE AT AU COVER CS OK TL MT \" same list as LO
.ds let*type BL
.nr Pi 5
.nr Pt 0
.if !''\\$1' .ds let*type \\$1
.if !d let@head_\\*[let*type] .@error \\$0: unknown letter type '\\$1'
.shift
.als let@header let@head_\\*[let*type]
.let@init_\\*[let*type] \\$@
.if \n[D]>1 .tm Letter type \\*[let*type]
..
.\"-----------
.\" Blocked letter
.de let@init_BL
..
.de let@head_BL
.rm let@header
.let@print-head 1
..
.de let@sg_BL
.ne 5v
.nf
.in (u;\\n[.l]/2)
.sp 3v
\\$1
\\$2
.in
.if \\$4 .sp
.if \w'\\$5'&\\$4 \\$5
.fi
..
.als let@fc_BL let@mt-closing
.\"-----------
.\" Semiblocked letter
.de let@init_SB
.nr Pt 1
..
.de let@head_SB
.rm let@header
.let@print-head 1
..
.als let@sg_SB let@sg_BL
.als let@fc_SB let@mt-closing
.\"-----------
.\" Full-blocked letter
.de let@init_FB
..
.de let@head_FB
.rm let@header
.let@print-head
..
.de let@sg_FB
.ne 5v
.nf
.sp 3v
\\$1
\\$2
.if \\$4 .sp
.if \w'\\$5'&\\$4 \\$5
.fi
..
.de let@fc_FB
.ne 5v
.sp
\\$1
..
.\"-----------
.\" Simplified letter
.de let@init_SP
..
.de let@head_SP
.rm let@header
.let@print-head
..
.de let@sg_SP
.nf
.if \\$3=1 .sp
.sp
.ie '\\$2'' .misc@toupper "\\$1"
.el         .misc@toupper "\\$1, \\$2"
.if \\$4 .sp
.if \w'\\$5'&\\$4 \\$5
.fi
..
.de let@fc_SP
.\" Simplified letters have no formal closing, just space before SG.
.sp 2
..
.\"--------------------------------------
.\" Print the letter-head
.de let@print-head
.nf
.sp |11
.if '1'\\$1' .in (u;\\n[.l]/2)
.\" ---- WA
.ie d let@wa-div .let@wa-div
.el .sp 3
.\" ---- datum
\\*[cov*new-date]
.sp
.if '1'\\$1' .if !d let*lo-CN .if !d let*lo-RN .sp 2
.\" ---- Confidential
.if d let*lo-CN \{\
.	ti 0
.	ie !''\\*[let*lo-CN]' \\*[let*lo-CN]
.	el \\*[LetCN]
.	sp
.\}
.\" ---- Reference
.if d let*lo-RN \{\
\\*[LetRN] \\*[let*lo-RN]
.	sp
.\}
.\" ---- IA
.sp
.in 0
.nr let*i 0 1
.while \\n+[let*i]<=\\n[let*ia-n] \{\
\\*[let*ia-name!\\n[let*i]]
\\*[let*ia-title!\\n[let*i]]
.\}
.if d let@ia-div .let@ia-div
.\" ---- Attention
.if d let*lo-AT \{\
.	sp
\\*[LetAT] \\*[let*lo-AT]
.\}
.\" ---- Salutation
.if !'\\*[let*type]'SP' .if d let*lo-SA \{\
.	sp
.	ti 0
.	ie !''\\*[let*lo-SA]' \\*[let*lo-SA]
.	el \\*[LetSA]
.\}
.\" ---- Subject
.if d let*lo-SJ \{\
.	ie '\\*[let*type]'SP' \{\
.		sp 2
.		misc@toupper "\\*[let*lo-SJ]"
.		sp
.	\}
.	el \{\
.		sp
.		if '\\*[let*type]'SB' .ti +5m
\\*[LetSJ] \f[\\*[@sdf_font]]\\*[let*lo-SJ]\fP
.	\}
.\}
..
.\"-------------------
.\" .IA [name [title]]
.nr let*ia-n 0 1
.de IA
.if \\n[.$] .ds let*ia-name!\\n+[let*ia-n] \\$1
.if \\n[.$]>1 .ds let*ia-title!\\n[let*ia-n] \\$2
.ev let@ev
.init@reset
'nf
.di let@ia-div
.eo
..
.de IE
.di
.ec
.ev
..
.\"-------------------
.\" .WA [name [title]]
.nr let*wa-n 0 1
.de WA
.if \\n[.$] .ds let*wa-name!\\n+[let*wa-n] \\$1
.if \\n[.$]>1 .ds let*wa-title!\\n[let*wa-n] \\$2
.ev let@ev
.init@reset
'nf
.di let@wa-div
.it \\n[Letwam] let@wa-drain
.eo
..
.\"------
.de let@wa-drain
.it
.di
.di let@wa-junk
..
.\"------
.de WE
.it
.ec
.di
.ev
.if d let@wa-junk .rm let@wa-junk
..
.\"-------------------
.\" Copy to
.de NS
.sp
.ie !''\\$2' .ds let*str \\$1
.el \{\
.	ie \\n[.$]>0 \{\
.		ie !\w'\\$1' .ds let*str \\*[Letns!\\*[Letnsdef]]
.		el \{\
.			ie d Letns!\\$1 .ds let*str \\*[Letns!\\$1]
.			el .ds let*str \\*[Letns!copy](\\$1)\\*[Letns!to]
.		\}
.	\}
.	el .ds let*str \\*[Letns!\\*[Letnsdef]]
.\}
.ne 2
.nf
\\*[let*str]
..
.de NE
.fi
..
.\"-------------------
.\" Letter options
.de LO
.ds @cover \\$0
.@disable AF AS AE AT AU COVER CS OK TL MT \" same list as LT
.if !\\n[.$] \{\
.	@warning \\$0: ignoring; no arguments specified
.	return
.\}
.if !d Let\\$1 .@error \\$0: unrecognized option '\\$1'
.ds let*lo-\\$1 \\$2
.if \n[D]>1 .tm Letter option \\$1 \\$2
..
.\"--------------------
.\" Start with a clean slate
.init@reset
.
.\" Local Variables:
.\" mode: nroff
.\" fill-column: 72
.\" End:
.\" vim: set filetype=groff textwidth=72:
