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-.\" -*- nroff -*-
-.ig
-Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
-
-This file is part of groff.
-
-groff 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 2, or (at your option) any later
-version.
-
-groff 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 groff; see the file COPYING. If not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-..
-.if !\n(.g .ab These ms macros require groff.
-.if \n(.C \
-. ab The groff ms macros do not work in compatibility mode.
-.\" Enable warnings. You can delete this if you want.
-.warn
-.\" See if already loaded.
-.if r GS .nx
-.nr GS 1
-.de @error
-.tm \\n(.F:\\n(.c: macro error: \\$*
-..
-.de @warning
-.tm \\n(.F:\\n(.c: macro warning: \\$*
-..
-.de @fatal
-.ab \\n(.F:\\n(.c: fatal macro error: \\$*
-..
-.de @not-implemented
-.@error sorry, \\$0 not implemented
-.als \\$0 @nop
-..
-.als TM @not-implemented
-.als CT @not-implemented
-.de @nop
-..
-.de @init
-.nr PO \\n(.o
-.\" a non-empty environment
-.ev ne
-\c
-.ev
-.ev nf
-'nf
-.ev
-..
-.ds REFERENCES References
-.ds ABSTRACT ABSTRACT
-.ds TOC Table of Contents
-.ds MONTH1 January
-.ds MONTH2 February
-.ds MONTH3 March
-.ds MONTH4 April
-.ds MONTH5 May
-.ds MONTH6 June
-.ds MONTH7 July
-.ds MONTH8 August
-.ds MONTH9 September
-.ds MONTH10 October
-.ds MONTH11 November
-.ds MONTH12 December
-.ds MO \\*[MONTH\n[mo]]
-.nr *year \n[yr]+1900
-.ds DY \n[dy] \*[MO] \n[*year]
-.de ND
-.if \\n[.$] .ds DY "\\$*
-..
-.de DA
-.if \\n[.$] .ds DY "\\$*
-.ds CF \\*[DY]
-..
-.\" indexing
-.de IX
-.tm \\$1\t\\$2\t\\$3\t\\$4 ... \\n[PN]
-..
-.\" print an error message and then try to recover
-.de @error-recover
-.@error \\$@ (recovering)
-.nr *pop-count 0
-.while !'\\n(.z'' \{\
-. \"@warning automatically terminating diversion \\n(.z
-. ie d @div-end!\\n(.z .@div-end!\\n(.z
-. el .*div-end-default
-. nr *pop-count +1
-. \" ensure that we don't loop forever
-. if \\n[*pop-count]>20 .@fatal recovery failed
-.\}
-.while !'\\n[.ev]'0' .ev
-.par@reset-env
-.par@reset
-..
-.de *div-end-default
-.ds *last-div \\n(.z
-.br
-.di
-.ev nf
-.\\*[*last-div]
-.ev
-..
-.\" ****************************
-.\" ******** module cov ********
-.\" ****************************
-.\" Cover sheet and first page.
-.de cov*err-not-after-first-page
-.@error \\$0 is not allowed after the first page has started
-..
-.de cov*err-not-before-tl
-.@error \\$0 is not allowed before TL
-..
-.de cov*err-not-again
-.@error \\$0 is not allowed more than once
-..
-.de cov*err-not-after-ab
-.@error \\$0 is not allowed after first AB, LP, PP, IP, SH or NH
-..
-.als AU cov*err-not-before-tl
-.als AI cov*err-not-before-tl
-.als AB cov*err-not-before-tl
-.de cov*first-page-init
-.rm cov*first-page-init
-.par@init
-.als RP cov*err-not-after-first-page
-.@init
-.ie \\n[cov*rp-format] \{\
-. pg@cs-top
-. als FS cov*FS
-. als FE cov*FE
-.\}
-.el \{\
-. pg@top
-. als FS @FS
-. als FE @FE
-.\}
-.wh 0 pg@top
-..
-.wh 0 cov*first-page-init
-.\" This handles the case where FS occurs before TL or LP.
-.de FS
-.br
-\\*[FS]\\
-..
-.nr cov*rp-format 0
-.nr cov*rp-no 0
-.\" released paper format
-.de RP
-.nr cov*rp-format 1
-.if \\n[.$] .if '\\$1'no' .nr cov*rp-no 1
-.pn 0
-..
-.de TL
-.br
-.als TL cov*err-not-again
-.rn @AB AB
-.rn @AU AU
-.rn @AI AI
-.di cov*tl-div
-.par@reset
-.ft B
-.ps +2
-.vs +3p
-.ll (u;\\n[LL]*5/6)
-.nr cov*n-au 0
-..
-.de @AU
-.par@reset
-.if !'\\n(.z'' \{\
-. br
-. di
-.\}
-.nr cov*n-au +1
-.di cov*au-div!\\n[cov*n-au]
-.nf
-.ft I
-.ps \\n[PS]
-..
-.de @AI
-.par@reset
-.if !'\\n(.z'' \{\
-. br
-. di
-.\}
-.ie !\\n[cov*n-au] .@error AI before AU
-.el \{\
-. di cov*ai-div!\\n[cov*n-au]
-. nf
-. ft R
-. ps \\n[PS]
-.\}
-..
-.de LP
-.if !'\\n[.z]'' \{\
-. br
-. di
-.\}
-.br
-.cov*ab-init
-.cov*print
-\\*[\\$0]\\
-..
-.als IP LP
-.als PP LP
-.als XP LP
-.als QP LP
-.als RS LP
-.als NH LP
-.als SH LP
-.als MC LP
-.als RT LP
-.als XS LP
-.de cov*ab-init
-.als cov*ab-init @nop
-.als LP @LP
-.als IP @IP
-.als PP @PP
-.als XP @XP
-.als RT @RT
-.als XS @XS
-.als SH @SH
-.als NH @NH
-.als QP @QP
-.als RS @RS
-.als RE @RE
-.als QS @QS
-.als QE @QE
-.als MC @MC
-.als EQ @EQ
-.als EN @EN
-.als TS @TS
-.als AB cov*err-not-after-ab
-.als AU par@AU
-.als AI par@AI
-.als TL par@TL
-..
-.de @AB
-.if !'\\n(.z'' \{\
-. br
-. di
-.\}
-.cov*ab-init
-.di cov*ab-div
-.par@ab-indent
-.par@reset
-.if !'\\$1'no' \{\
-. ft I
-. ce 1
-\\*[ABSTRACT]
-. sp
-. ft R
-.\}
-.ns
-.@PP
-..
-.de AE
-.ie '\\n(.z'cov*ab-div' \{\
-. als AE cov*err-not-again
-. br
-. di
-.\" nr cov*ab-height \\n[dn]
-. par@reset-env
-. par@reset
-. cov*print
-.\}
-.el .@error AE without AB
-..
-.de @div-end!cov*ab-div
-.AE
-..
-.de cov*print
-.als cov*print @nop
-.ie d cov*tl-div \{\
-. ie \\n[cov*rp-format] .cov*rp-print
-. el .cov*draft-print
-.\}
-.el \{\
-. if \\n[cov*rp-format] \{\
-. @warning RP format but no TL
-. bp 1
-. als FS @FS
-. als FE @FE
-. \}
-. br
-.\}
-..
-.de cov*rp-print
-.nr cov*page-length \\n[.p]
-.pl 1000i
-.cov*tl-au-print
-.sp 3
-.if d cov*ab-div \{\
-. nf
-. cov*ab-div
-.\}
-.sp 3
-.par@reset
-\\*[DY]
-.br
-.if \\n[cov*fn-height] \{\
-. sp |(u;\\n[cov*page-length]-\\n[FM]\
--\\n[cov*fn-height]-\\n[fn@sep-dist]>?\\n[nl])
-. fn@print-sep
-. ev nf
-. cov*fn-div
-. ev
-. ie \\n[cov*rp-no] .rm cov*fn-div
-. el \{\
-. rn cov*fn-div fn@overflow-div
-. nr fn@have-overflow 1
-. \}
-.\}
-.als FS @FS
-.als FE @FE
-.\" If anything was printed below where the footer line is normally printed,
-.\" then that's an overflow.
-.if -\\n[FM]/2+1v+\\n[cov*page-length]<\\n[nl] .@error cover sheet overflow
-.pl \\n[cov*page-length]u
-.bp 1
-.if !\\n[cov*rp-no] .cov*tl-au-print
-.rs
-.sp 1
-..
-.de cov*draft-print
-.cov*tl-au-print
-.if d cov*ab-div \{\
-. nf
-. sp 2
-. cov*ab-div
-.\}
-.sp 1
-..
-.de cov*tl-au-print
-.par@reset
-.nf
-.rs
-.sp 3
-.ce 9999
-.cov*tl-div
-.nr cov*i 1
-.nr cov*sp 1v
-.while \\n[cov*i]<=\\n[cov*n-au] \{\
-. sp \\n[cov*sp]u
-. cov*au-div!\\n[cov*i]
-. ie d cov*ai-div!\\n[cov*i] \{\
-. sp .5v
-. cov*ai-div!\\n[cov*i]
-. nr cov*sp 1v
-. \}
-. el .nr cov*sp .5v
-. nr cov*i +1
-.\}
-.ce 0
-..
-.nr cov*fn-height 0
-.nr cov*in-fn 0
-.\" start of footnote on cover
-.de cov*FS
-.if \\n[cov*in-fn] \{\
-. @error nested FS
-. FE
-.\}
-.nr cov*in-fn 1
-.ev fn
-.par@reset-env
-.da cov*fn-div
-.if !\\n[cov*fn-height] .ns
-.ie \\n[.$] .FP "\\$1" no
-.el .@LP
-..
-.de @div-end!cov*fn-div
-.cov*FE
-..
-.\" end of footnote on cover
-.de cov*FE
-.ie '\\n(.z'cov*fn-div' \{\
-. br
-. ev
-. di
-. nr cov*in-fn 0
-. nr cov*fn-height +\\n[dn]
-.\}
-.el .@error FE without matching FS
-..
-.\" ***************************
-.\" ******** module pg ********
-.\" ***************************
-.\" Page-level formatting.
-.\" > 0 if we have a footnote on the current page
-.nr pg@fn-flag 0
-.nr pg@colw 0
-.nr pg@fn-colw 0
-.nr HM 1i
-.nr FM 1i
-.ds LF
-.ds CF
-.ds RF
-.ds LH
-.ds CH -\\n[PN]-
-.ds RH
-.ds pg*OH '\\*[LH]'\\*[CH]'\\*[RH]'
-.ds pg*EH '\\*[LH]'\\*[CH]'\\*[RH]'
-.ds pg*OF '\\*[LF]'\\*[CF]'\\*[RF]'
-.ds pg*EF '\\*[LF]'\\*[CF]'\\*[RF]'
-.de OH
-.ds pg*\\$0 "\\$*
-..
-.als EH OH
-.als OF OH
-.als EF OH
-.de PT
-.ie \\n%=1 .if \\n[pg*P1] .tl \\*[pg*OH]
-.el \{\
-. ie o .tl \\*[pg*OH]
-. el .tl \\*[pg*EH]
-.\}
-..
-.de BT
-.ie o .tl \\*[pg*OF]
-.el .tl \\*[pg*EF]
-..
-.nr pg*P1 0
-.de P1
-.nr pg*P1 1
-..
-.wh -\n[FM]u pg@bottom
-.wh -\n[FM]u/2u pg*footer
-.nr MINGW 2n
-.nr pg@ncols 1
-.de @MC
-.if !'\\n(.z'' .error-recover MC while diversion open
-.br
-.ie \\n[pg@ncols]>1 .pg@super-eject
-.el \{\
-. \" flush out any floating keeps
-. while \\n[kp@tail]>\\n[kp@head] \{\
-. rs
-. bp
-. \}
-.\}
-.ie !\\n(.$ \{\
-. nr pg@colw \\n[LL]*7/15
-. nr pg*gutw \\n[LL]-(2*\\n[pg@colw])
-. nr pg@ncols 2
-.\}
-.el \{\
-. nr pg@colw (n;\\$1)<?\\n[LL]
-. ie \\n[.$]<2 .nr pg*gutw \\n[MINGW]
-. el .nr pg*gutw (n;\\$2)
-. nr pg@ncols \\n[LL]-\\n[pg@colw]/(\\n[pg@colw]+\\n[pg*gutw])+1
-. ie \\n[pg@ncols]>1 \
-. nr pg*gutw \\n[LL]-(\\n[pg@ncols]*\\n[pg@colw])/(\\n[pg@ncols]-1)
-. el .nr pg*gutw 0
-.\}
-.mk pg*col-top
-.ns
-.nr pg*col-num 0
-.nr pg@fn-colw \\n[pg@colw]*5/6
-.par@reset
-..
-.de 2C
-.MC
-..
-.de 1C
-.MC \\n[LL]u
-..
-.\" top of page macro
-.de pg@top
-.ch pg*footer -\\n[FM]u/2u
-.nr PN \\n%
-.nr pg*col-num 0
-.nr pg@fn-bottom-margin 0
-.nr pg*saved-po \\n[PO]
-.po \\n[PO]u
-.ev h
-.par@reset
-.sp (u;\\n[HM]/2)
-.PT
-.sp |\\n[HM]u
-.if d HD .HD
-.mk pg@header-bottom
-.ev
-.mk pg*col-top
-.pg*start-col
-..
-.de pg*start-col
-.\" Handle footnote overflow before floating keeps, because the keep
-.\" might contain an embedded footnote.
-.fn@top-hook
-.kp@top-hook
-.tbl@top-hook
-.ns
-..
-.de pg@cs-top
-.sp \\n[HM]u
-.\" move pg@bottom and pg*footer out of the way
-.ch pg@bottom \\n[.p]u*2u
-.ch pg*footer \\n[.p]u*2u
-.ns
-..
-.de pg@bottom
-.tbl@bottom-hook
-.if \\n[pg@fn-flag] .fn@bottom-hook
-.nr pg*col-num +1
-.ie \\n[pg*col-num]<\\n[pg@ncols] .pg*end-col
-.el .pg*end-page
-..
-.de pg*end-col
-'sp |\\n[pg*col-top]u
-.po (u;\\n[pg*saved-po]+(\\n[pg@colw]+\\n[pg*gutw]*\\n[pg*col-num]))
-.\"po +(u;\\n[pg@colw]+\\n[pg*gutw])
-.pg*start-col
-..
-.de pg*end-page
-.po \\n[pg*saved-po]u
-.\" Make sure we don't exit if there are still floats or footnotes left-over.
-.ie \\n[kp@head]<\\n[kp@tail]:\\n[fn@have-overflow] \{\
-. \" Switching environments ensures that we don't get an unnecessary
-. \" blank line at the top of the page.
-. ev ne
-' bp
-. ev
-.\}
-.el \{\
-. \" If the text has ended and there are no more footnotes or keeps, exit.
-. if \\n[pg@text-ended] .ex
-. if r pg*next-number \{\
-. pn \\n[pg*next-number]
-. rr pg*next-number
-. if d pg*next-format \{\
-. af PN \\*[pg*next-format]
-. rm pg*next-format
-. \}
-. \}
-' bp
-.\}
-..
-.\" pg@begin number format
-.de pg@begin
-.ie \\n[.$]>0 \{\
-. nr pg*next-number (;\\$1)
-. ie \\n[.$]>1 .ds pg*next-format \\$2
-. el .rm pg*next-format
-.\}
-.el .rr pg*next-number
-.pg@super-eject
-..
-.\" print the footer line
-.de pg*footer
-.ev h
-.par@reset
-.BT
-.ev
-..
-.\" flush out any keeps or footnotes
-.de pg@super-eject
-.br
-.if !'\\n(.z'' .@error-recover diversion open while ejecting page
-.\" Make sure we stay in the end macro while there is still footnote overflow
-.\" left, or floating keeps.
-.while \\n[kp@tail]>\\n[kp@head]:\\n[pg@fn-flag] \{\
-. rs
-. bp
-.\}
-.bp
-..
-.nr pg@text-ended 0
-.de pg@end-text
-.br
-.nr pg@text-ended 1
-.pg@super-eject
-..
-.em pg@end-text
-.\" ***************************
-.\" ******** module fn ********
-.\" ***************************
-.\" Footnotes.
-.nr fn@sep-dist 8p
-.ev fn
-.\" Round it vertically
-.vs \n[fn@sep-dist]u
-.nr fn@sep-dist \n[.v]
-.ev
-.nr fn*text-num 0 1
-.nr fn*note-num 0 1
-.ds * \\*[par@sup-start]\En+[fn*text-num]\\*[par@sup-end]
-.nr fn*open 0
-.\" normal FS
-.de @FS
-.ie \\n[.$] .fn*do-FS "\\$1" no
-.el \{\
-. ie \\n[fn*text-num]>\\n[fn*note-num] .fn*do-FS \\n+[fn*note-num]
-. el .fn*do-FS
-.\}
-..
-.\" Second argument of `no' means don't embellish the first argument.
-.de fn*do-FS
-.if \\n[fn*open] .@error-recover nested FS
-.nr fn*open 1
-.if \\n[.u] \{\
-. \" Ensure that the first line of the footnote is on the same page
-. \" as the reference. I think this is minimal.
-. ev fn
-. nr fn*need 1v
-. ev
-. ie \\n[pg@fn-flag] .nr fn*need +\\n[fn:PD]
-. el .nr fn*need +\\n[fn@sep-dist]
-. ne \\n[fn*need]u+\\n[.V]u>?0
-.\}
-.ev fn
-.par@reset-env
-.fn*start-div
-.par@reset
-.ie \\n[.$] .FP \\$@
-.el .@LP
-..
-.de @FE
-.ie !\\n[fn*open] .@error FE without FS
-.el \{\
-. nr fn*open 0
-. br
-. ev
-. fn*end-div
-.\}
-..
-.nr fn@have-overflow 0
-.\" called at the top of each column
-.de fn@top-hook
-.nr fn*max-width 0
-.nr fn*page-bottom-pos 0-\\n[FM]-\\n[pg@fn-bottom-margin]
-.ch pg@bottom \\n[fn*page-bottom-pos]u
-.if \\n[fn@have-overflow] \{\
-. nr fn@have-overflow 0
-. fn*start-div
-. ev nf
-. fn@overflow-div
-. ev
-. fn*end-div
-.\}
-..
-.\" This is called at the bottom of the column if pg@fn-flag is set.
-.de fn@bottom-hook
-.nr pg@fn-flag 0
-.nr fn@have-overflow 0
-.nr fn@bottom-pos \\n[.p]-\\n[FM]-\\n[pg@fn-bottom-margin]+\\n[.v]
-.ev fn
-.nr fn@bottom-pos -\\n[.v]
-.ev
-.ie \\n[nl]+\\n[fn@sep-dist]+\n[.V]>\\n[fn@bottom-pos] \{\
-. rn fn@div fn@overflow-div
-. nr fn@have-overflow 1
-.\}
-.el \{\
-. if \\n[pg@ncols]>1 \
-. if \\n[fn*max-width]>\\n[pg@fn-colw] \
-. nr pg@fn-bottom-margin \\n[.p]-\\n[FM]-\\n[nl]+1v
-. wh \\n[fn@bottom-pos]u fn*catch-overflow
-. fn@print-sep
-. ev nf
-. fn@div
-. rm fn@div
-. ev
-. if '\\n(.z'fn@overflow-div' \{\
-. di
-. nr fn@have-overflow \\n[dn]>0
-. \}
-. ch fn*catch-overflow
-.\}
-..
-.de fn*catch-overflow
-.di fn@overflow-div
-..
-.nr fn*embed-count 0
-.de @div-end!fn@div
-.br
-.if '\\n[.ev]'fn' .ev
-.fn*end-div
-.nr fn*open 0
-..
-.als @div-end!fn*embed-div @div-end!fn@div
-.de fn*start-div
-.ie '\\n(.z'' \{\
-. da fn@div
-. if !\\n[pg@fn-flag] .ns
-.\}
-.el .di fn*embed-div
-..
-.de fn*end-div
-.ie '\\n(.z'fn@div' \{\
-. di
-. nr fn*page-bottom-pos -\\n[dn]
-. nr fn*max-width \\n[fn*max-width]>?\\n[dl]
-. if !\\n[pg@fn-flag] .nr fn*page-bottom-pos -\\n[fn@sep-dist]
-. nr pg@fn-flag 1
-. nr fn*page-bottom-pos \\n[nl]-\\n[.p]+\n[.V]>?\\n[fn*page-bottom-pos]
-. ch pg@bottom \\n[fn*page-bottom-pos]u
-.\}
-.el \{\
-. ie '\\n(.z'fn*embed-div' \{\
-. di
-. rn fn*embed-div fn*embed-div!\\n[fn*embed-count]
-\!. fn*embed-start \\n[fn*embed-count]
-. rs
-' sp (u;\\n[dn]+\\n[fn@sep-dist]+\\n[.V])
-\!. fn*embed-end
-. nr fn*embed-count +1
-. \}
-. el \{\
-. ev fn
-. @error-recover unclosed diversion within footnote
-. \}
-.\}
-..
-.de fn*embed-start
-.ie '\\n(.z'' \{\
-. fn*start-div
-. ev nf
-. fn*embed-div!\\$1
-. rm fn*embed-div!\\$1
-. ev
-. fn*end-div
-. di fn*null
-.\}
-.el \{\
-\!. fn*embed-start \\$1
-. rs
-.\}
-..
-.de fn*embed-end
-.ie '\\n(.z'fn*null' \{\
-. di
-. rm fn*null
-.\}
-.el \!.fn*embed-end
-..
-.\" It's important that fn@print-sep use up exactly fn@sep-dist vertical space.
-.de fn@print-sep
-.ev fn
-.in 0
-.vs \\n[fn@sep-dist]u
-\D'l 1i 0'
-.br
-.ev
-..
-.\" ***************************
-.\" ******** module kp ********
-.\" ***************************
-.\" Keeps.
-.de KS
-.br
-.di kp*div
-..
-.de KF
-.if !'\\n(.z'' .@error-recover KF while open diversion
-.di kp*fdiv
-.ev k
-.par@reset-env
-.par@reset
-..
-.de KE
-.ie '\\n(.z'kp*div' .kp*end
-.el \{\
-. ie '\\n(.z'kp*fdiv' .kp*fend
-. el .@error KE without KS or KF
-.\}
-..
-.de @div-end!kp*div
-.kp*end
-..
-.de @div-end!kp*fdiv
-.kp*fend
-..
-.de kp*need
-.ie '\\n(.z'' .ds@need \\$1
-.el \!.kp*need \\$1
-..
-.\" end non-floating keep
-.de kp*end
-.br
-.di
-.kp*need \\n[dn]
-.ev nf
-.kp*div
-.ev
-.rm kp*div
-..
-.\" Floating keeps.
-.nr kp@head 0
-.nr kp@tail 0
-.\" end floating keep
-.de kp*fend
-.br
-.ev
-.di
-.ie \\n[.t]-(\\n[.k]>0*1v)>\\n[dn] \{\
-. br
-. ev nf
-. kp*fdiv
-. rm kp*fdiv
-. ev
-.\}
-.el \{\
-. rn kp*fdiv kp*div!\\n[kp@tail]
-. nr kp*ht!\\n[kp@tail] 0\\n[dn]
-. nr kp@tail +1
-.\}
-..
-.\" top of page processing for KF
-.nr kp*doing-top 0
-.de kp@top-hook
-.if !\\n[kp*doing-top] \{\
-. nr kp*doing-top 1
-. kp*do-top
-. nr kp*doing-top 0
-.\}
-..
-.de kp*do-top
-.\" If the first keep won't fit, only force it out if we haven't had a footnote
-.\" and we're at the top of the page.
-.nr kp*force \\n[pg@fn-flag]=0&(\\n[nl]<=\\n[pg@header-bottom])
-.nr kp*fits 1
-.while \\n[kp@tail]>\\n[kp@head]&\\n[kp*fits] \{\
-. ie \\n[.t]>\\n[kp*ht!\\n[kp@head]]:\\n[kp*force] \{\
-. nr kp*force 0
-. \" It's important to advance kp@head before bringing
-. \" back the keep, so that if the last line of the
-. \" last keep springs the bottom of page trap, a new
-. \" page will not be started unnecessarily.
-. rn kp*div!\\n[kp@head] kp*temp
-. nr kp@head +1
-. ev nf
-. kp*temp
-. ev
-. rm kp*temp
-. \}
-. el .nr kp*fits 0
-.\}
-..
-.\" ***************************
-.\" ******** module ds ********
-.\" ***************************
-.\" Displays and non-floating keeps.
-.de DE
-.ds*end!\\n[\\n[.ev]:ds-type]
-.nr \\n[.ev]:ds-type 0
-..
-.de ds@auto-end
-.if \\n[\\n[.ev]:ds-type] \{\
-. @error automatically terminating display
-. DE
-.\}
-..
-.de @div-end!ds*div
-.ie \\n[\\n[.ev]:ds-type] .DE
-.el .ds*end!2
-..
-.de ds*end!0
-.@error DE without DS, ID, CD, LD or BD
-..
-.de LD
-.br
-.nr \\n[.ev]:ds-type 1
-.par@reset
-.nf
-.sp \\n[DD]u
-..
-.de ID
-.LD
-.ie \\n[.$] .in +(n;\\$1)
-.el .in +\\n[DI]u
-..
-.de CD
-.LD
-.ce 9999
-..
-.de RD
-.LD
-.rj 9999
-..
-.de ds*common-end
-.par@reset
-.sp \\n[DD]u
-..
-.als ds*end!1 ds*common-end
-.de BD
-.LD
-.nr \\n[.ev]:ds-type 2
-.di ds*div
-..
-.de ds*end!2
-.br
-.ie '\\n(.z'ds*div' \{\
-. di
-. nf
-. in (u;\\n[.l]-\\n[dl]/2)
-. ds*div
-. rm ds*div
-. ds*common-end
-.\}
-.el .@error-recover mismatched DE
-..
-.de DS
-.br
-.di ds*div
-.ie '\\$1'B' \{\
-. LD
-. nr \\n[.ev]:ds-type 4
-.\}
-.el \{\
-. ie '\\$1'L' .LD
-. el \{\
-. ie '\\$1'C' .CD
-. el \{\
-. ie '\\$1'R' .RD
-. el \{\
-. ie '\\$1'I' .ID \\$2
-. el .ID \\$1
-. \}
-. \}
-. \}
-. nr \\n[.ev]:ds-type 3
-.\}
-..
-.de ds@need
-.if '\\n(.z'' \{\
-. while \\n[.t]<=(\\$1)&(\\n[nl]>\\n[pg@header-bottom]) \{\
-. rs
-' sp \\n[.t]u
-. \}
-.\}
-..
-.de ds*end!3
-.br
-.ie '\\n(.z'ds*div' \{\
-. di
-. ds@need \\n[dn]
-. ev nf
-. ds*div
-. ev
-. rm ds*div
-. ds*common-end
-.\}
-.el .@error-recover mismatched DE
-..
-.de ds*end!4
-.ie '\\n(.z'ds*div' \{\
-. br
-. di
-. nf
-. in (u;\\n[.l]-\\n[dl]/2)
-. ds@need \\n[dn]
-. ds*div
-. rm ds*div
-. ds*common-end
-.\}
-.el .@error-recover mismatched DE
-..
-.\" ****************************
-.\" ******** module par ********
-.\" ****************************
-.\" Paragraph-level formatting.
-.\" Load time initialization.
-.de par@load-init
-.\" PS and VS might have been set on the command-line
-.if !rPS .nr PS 10
-.if !rLL .nr LL 6i
-.ll \\n[LL]u
-.\" don't set LT so that it can be defaulted from LL
-.ie rLT .lt \\n[LT]u
-.el .lt \\n[LL]u
-.ps \\n[PS]
-.\" don't set VS so that it can be defaulted from PS
-.ie rVS .par*vs \\n[VS]
-.el .par*vs \\n[PS]+2
-.if dFAM .fam \\*[FAM]
-.if !rHY .nr HY 14
-.hy \\n[HY]
-.TA
-..
-.de par*vs
-.\" If it's too big to be in points, treat it as units.
-.ie (p;\\$1)>=40p .vs (u;\\$1)
-.el .vs (p;\\$1)
-..
-.de par@ab-indent
-.nr 0:li (u;\\n[LL]/12)
-.nr 0:ri \\n[0:li]
-..
-.de par*env-init
-.aln \\n[.ev]:PS PS
-.aln \\n[.ev]:VS VS
-.aln \\n[.ev]:LL LL
-.aln \\n[.ev]:MCLL LL
-.aln \\n[.ev]:LT LT
-.aln \\n[.ev]:MCLT LT
-.aln \\n[.ev]:PI PI
-.aln \\n[.ev]:PD PD
-.ad \\n[par*adj]
-.par@reset-env
-..
-.\" happens when the first page begins
-.de par@init
-.if !rLT .nr LT \\n[LL]
-.if !rFL .nr FL \\n[LL]*5/6
-.if !rVS .nr VS \\n[PS]+2
-.if !rDI .nr DI .5i
-.if !rFPS .nr FPS \\n[PS]-2
-.if !rFVS .nr FVS \\n[FPS]+2
-.\" don't change environment 0
-.ev h
-.ps \\n[PS]
-.if !rQI .nr QI 5n
-.if !rPI .nr PI 5n
-.par*vs \\n[VS]
-.if !rPD .nr PD .3v>?\n(.V
-.if !rDD .nr DD .5v>?\n(.V
-.if !rFI .nr FI 2n
-.if !rFPD .nr FPD \\n[PD]/2
-.ev
-.if !dFAM .ds FAM \\n[.fam]
-.nr par*adj \\n[.j]
-.par*env-init
-.ev h
-.par*env-init
-.ev
-.ev fn
-.par*env-init
-.ev
-.ev k
-.par*env-init
-.ev
-.aln 0:MCLL pg@colw
-.aln 0:MCLT pg@colw
-.aln k:MCLL pg@colw
-.aln k:MCLT pg@colw
-.aln fn:PS FPS
-.aln fn:VS FVS
-.aln fn:LL FL
-.aln fn:LT FL
-.aln fn:PI FI
-.aln fn:PD FPD
-.aln fn:MCLL pg@fn-colw
-.aln fn:MCLT pg@fn-colw
-..
-.de par@reset-env
-.nr \\n[.ev]:il 0
-.nr \\n[.ev]:li 0
-.nr \\n[.ev]:ri 0
-.nr \\n[.ev]:ai \\n[\\n[.ev]:PI]
-.nr \\n[.ev]:pli 0
-.nr \\n[.ev]:pri 0
-.nr \\n[.ev]:ds-type 0
-..
-.\" par@reset
-.de par@reset
-.br
-.ce 0
-.rj 0
-.ul 0
-.fi
-.ie \\n[pg@ncols]>1 \{\
-. ll (u;\\n[\\n[.ev]:MCLL]-\\n[\\n[.ev]:ri]-\\n[\\n[.ev]:pri])
-. lt \\n[\\n[.ev]:MCLT]u
-.\}
-.el \{\
-. ll (u;\\n[\\n[.ev]:LL]-\\n[\\n[.ev]:ri]-\\n[\\n[.ev]:pri])
-. lt \\n[\\n[.ev]:LT]u
-.\}
-.in (u;\\n[\\n[.ev]:li]+\\n[\\n[.ev]:pli])
-.ft 1
-.fam \\*[FAM]
-.ps \\n[\\n[.ev]:PS]
-.par*vs \\n[\\n[.ev]:VS]
-.ls 1
-.TA
-.hy \\n[HY]
-..
-.de @RT
-.nr \\n[.ev]:pli 0
-.nr \\n[.ev]:pri 0
-.par@reset
-..
-.\" This can be redefined by the user.
-.de TA
-.ta T 5n
-..
-.de par*start
-.ds@auto-end
-.nr \\n[.ev]:pli \\$1
-.nr \\n[.ev]:pri \\$2
-.par@reset
-.sp \\n[\\n[.ev]:PD]u
-.ne 1v+\\n(.Vu
-..
-.de par@finish
-.nr \\n[.ev]:pli 0
-.nr \\n[.ev]:pri 0
-.par@reset
-..
-.\" normal LP
-.de @LP
-.par*start 0 0
-.nr \\n[.ev]:ai \\n[\\n[.ev]:PI]
-..
-.de @PP
-.par*start 0 0
-.nr \\n[.ev]:ai \\n[\\n[.ev]:PI]
-.ti +\\n[\\n[.ev]:ai]u
-..
-.de @QP
-.nr \\n[.ev]:ai \\n[\\n[.ev]:PI]
-.par*start \\n[QI] \\n[QI]
-..
-.de @XP
-.par*start \\n[\\n[.ev]:PI] 0
-.ti -\\n[\\n[.ev]:PI]u
-..
-.de @IP
-.if \\n[.$]>1 .nr \\n[.ev]:ai (n;\\$2)
-.par*start \\n[\\n[.ev]:ai] 0
-.if !'\\$1'' \{\
-. \" Divert the label so as to freeze any spaces.
-. di par*label
-. par*push-tag-env
-\&\\$1
-. par*pop-tag-env
-. di
-. chop par*label
-. ti -\\n[\\n[.ev]:ai]u
-. ie \\n[dl]+1n<=\\n[\\n[.ev]:ai] \\*[par*label]\h'|\\n[\\n[.ev]:ai]u'\c
-. el \{\
-\\*[par*label]
-. br
-. \}
-. rm par*label
-.\}
-..
-.\" We don't want margin characters to be attached when we divert
-.\" the tag. Since there's no way to save and restore the current
-.\" margin character, we have to switch to a new environment, taking
-.\" what we need of the old environment with us.
-.de par*push-tag-env
-.nr par*saved-font \\n[.f]
-.nr par*saved-size \\n[.s]z
-.nr par*saved-ss \\n[.ss]
-.ds par*saved-fam \\n[.fam]
-.ev par
-.nf
-.TA
-.ft \\n[par*saved-font]
-.ps \\n[par*saved-size]u
-.ss \\n[par*saved-ss]
-.fam \\*[par*saved-fam]
-..
-.de par*pop-tag-env
-.ev
-..
-.de @RS
-.br
-.nr \\n[.ev]:li!\\n[\\n[.ev]:il] \\n[\\n[.ev]:li]
-.nr \\n[.ev]:ri!\\n[\\n[.ev]:il] \\n[\\n[.ev]:ri]
-.nr \\n[.ev]:ai!\\n[\\n[.ev]:il] \\n[\\n[.ev]:ai]
-.nr \\n[.ev]:pli!\\n[\\n[.ev]:il] \\n[\\n[.ev]:pli]
-.nr \\n[.ev]:pri!\\n[\\n[.ev]:il] \\n[\\n[.ev]:pri]
-.nr \\n[.ev]:il +1
-.nr \\n[.ev]:li +\\n[\\n[.ev]:ai]
-.nr \\n[.ev]:ai \\n[\\n[.ev]:PI]
-.par@reset
-..
-.de @RE
-.br
-.ie \\n[\\n[.ev]:il] \{\
-. nr \\n[.ev]:il -1
-. nr \\n[.ev]:ai \\n[\\n[.ev]:ai!\\n[\\n[.ev]:il]]
-. nr \\n[.ev]:li \\n[\\n[.ev]:li!\\n[\\n[.ev]:il]]
-. nr \\n[.ev]:ri \\n[\\n[.ev]:ri!\\n[\\n[.ev]:il]]
-. nr \\n[.ev]:pli \\n[\\n[.ev]:pli!\\n[\\n[.ev]:il]]
-. nr \\n[.ev]:pri \\n[\\n[.ev]:pri!\\n[\\n[.ev]:il]]
-.\}
-.el .@error unbalanced \\$0
-.par@reset
-..
-.de @QS
-.br
-.nr \\n[.ev]:li!\\n[\\n[.ev]:il] \\n[\\n[.ev]:li]
-.nr \\n[.ev]:ri!\\n[\\n[.ev]:il] \\n[\\n[.ev]:ri]
-.nr \\n[.ev]:ai!\\n[\\n[.ev]:il] \\n[\\n[.ev]:ai]
-.nr \\n[.ev]:pli!\\n[\\n[.ev]:il] \\n[\\n[.ev]:pli]
-.nr \\n[.ev]:pri!\\n[\\n[.ev]:il] \\n[\\n[.ev]:pri]
-.nr \\n[.ev]:il +1
-.nr \\n[.ev]:li +\\n[QI]
-.nr \\n[.ev]:ri +\\n[QI]
-.nr \\n[.ev]:ai \\n[\\n[.ev]:PI]
-.par@reset
-..
-.als @QE @RE
-.\" start boxed text
-.de B1
-.br
-.di par*box-div
-.nr \\n[.ev]:li +1n
-.nr \\n[.ev]:ri +1n
-.nr par*box-in \\n[.in]
-.\" remember what 1n is, just in case the point size changes
-.nr par*box-n 1n
-.in +1n
-.ll -1n
-.lt -1n
-.ti \\n[par*box-in]u+1n
-..
-.de @div-end!par*box-div
-.B2
-..
-.\" end boxed text
-.\" Postpone the drawing of the box until we're in the top-level diversion,
-.\" in case there's a footnote inside the box.
-.de B2
-.ie '\\n(.z'par*box-div' \{\
-. br
-. if \n[.V]>.25m .sp
-. di
-. if \n[.V]>.25m .sp
-. ds@need \\n[dn]
-. par*box-mark-top
-. ev nf
-. par*box-div
-. ev
-. nr \\n[.ev]:ri -\\n[par*box-n]
-. nr \\n[.ev]:li -\\n[par*box-n]
-. in -\\n[par*box-n]u
-. ll +\\n[par*box-n]u
-. lt +\\n[par*box-n]u
-. par*box-draw \\n[.i]u \\n[.l]u-(\\n[.H]u==1n*1n)
-.\}
-.el .@error B2 without B1
-..
-.de par*box-mark-top
-.ie '\\n[.z]'' \{\
-. rs
-. mk par*box-top
-.\}
-.el \!.par*box-mark-top
-..
-.de par*box-draw
-.ie '\\n[.z]'' \{\
-. nr par*box-in \\n[.i]
-. nr par*box-ll \\n[.l]
-. nr par*box-vpt \\n[.vpt]
-. nr par*box-ad \\n[.j]
-. ad l
-. vpt 0
-. in \\$1
-. ll \\$2
-\v'-1v+.25m'\
-\D'l (u;\\n[.l]-\\n[.i]) 0'\
-\D'l 0 |\\n[par*box-top]u'\
-\D'l -(u;\\n[.l]-\\n[.i]) 0'\
-\D'l 0 -|\\n[par*box-top]u'
-. br
-. sp -1
-. in \\n[par*box-in]u
-. ll \\n[par*box-ll]u
-. vpt \\n[par*box-vpt]
-. ad \\n[par*box-ad]
-.\}
-.el \!.par*box-draw \\$1 \\$2
-..
-.de @SH
-.par@finish
-.\" Keep together the heading and the first two lines of the next paragraph.
-.ne 3v+\\n[\\n[.ev]:PD]u+\\n(.Vu
-.sp 1
-.ft B
-..
-.\" TL, AU, and AI are aliased to these in cov*ab-init.
-.de par@TL
-.par@finish
-.sp 1
-.ft B
-.ps +2
-.vs +3p
-.ce 9999
-..
-.de par@AU
-.par@finish
-.sp 1
-.ft I
-.ce 9999
-..
-.de par@AI
-.par@finish
-.sp .5
-.ce 9999
-..
-.\" In paragraph macros.
-.de NL
-.ps \\n[\\n[.ev]:PS]
-..
-.de SM
-.ps -2
-..
-.de LG
-.ps +2
-..
-.de R
-.ft R
-..
-.\" par*define-font-macro macro font
-.de par*define-font-macro
-.de \\$1
-.ie \\\\n[.$] \{\
-. nr par*prev-font \\\\n[.f]
-\&\\\\$3\f[\\$2]\\\\$1\f[\\\\n[par*prev-font]]\\\\$2
-.\}
-.el .ft \\$2
-\\..
-..
-.par*define-font-macro B B
-.par*define-font-macro I I
-.par*define-font-macro BI BI
-.par*define-font-macro CW CR
-.\" underline a word
-.de UL
-\Z'\\$1'\v'.25m'\D'l \w'\\$1'u 0'\v'-.25m'\\$2
-..
-.\" box a word
-.de BX
-.nr par*bxw \w'\\$1'+.4m
-\Z'\v'.25m'\D'l 0 -1m'\D'l \\n[par*bxw]u 0'\D'l 0 1m'\D'l -\\n[par*bxw]u 0''\
-\Z'\h'.2m'\\$1'\
-\h'\\n[par*bxw]u'
-..
-.\" The first time UX is used, put a registered mark after it.
-.ds par*ux-rg \(rg
-.de UX
-\s[\\n[.s]*8u/10u]UNIX\s0\\$1\\*[par*ux-rg]
-.ds par*ux-rg
-..
-.ds par@sup-start \v'-.9m\s'\En[.s]*7u/10u'+.7m'
-.als { par@sup-start
-.ds par@sup-end \v'-.7m\s0+.9m'
-.als } par@sup-end
-.\" footnote paragraphs
-.\" FF is the footnote format
-.nr FF 0
-.\" This can be redefined. It gets a second argument of `no' if the first
-.\" argument was supplied by the user, rather than automatically.
-.de FP
-.br
-.if !d par*fp!\\n[FF] \{\
-. @error unknown footnote format `\\n[FF]'
-. nr FF 0
-.\}
-.ie '\\$2'no' .par*fp!\\n[FF]-no "\\$1"
-.el .par*fp!\\n[FF] "\\$1"
-..
-.de par*fp!0
-.@PP
-\&\\*[par@sup-start]\\$1\\*[par@sup-end]\ \c
-..
-.de par*fp!0-no
-.@PP
-\&\\$1\ \c
-..
-.de par*fp!1
-.@PP
-\&\\$1.\ \c
-..
-.de par*fp!1-no
-.@PP
-\&\\$1\ \c
-..
-.de par*fp!2
-.@LP
-\&\\$1.\ \c
-..
-.de par*fp!2-no
-.@LP
-\&\\$1\ \c
-..
-.de par*fp!3
-.@IP "\\$1." (u;\\n[\\n[.ev]:PI]*2)
-..
-.de par*fp!3-no
-.@IP "\\$1" (u;\\n[\\n[.ev]:PI]*2)
-..
-.\" ***************************
-.\" ******** module nh ********
-.\" ***************************
-.\" Numbered headings.
-.\" nh*hl is the level of the last heading
-.nr nh*hl 0
-.\" numbered heading
-.de @NH
-.ie '\\$1'S' \{\
-. shift
-. nr nh*hl 0
-. while \\n[.$] \{\
-. nr nh*hl +1
-. nr H\\n[nh*hl] 0\\$1
-. shift
-. \}
-. if !\\n[nh*hl] \{\
-. nr H1 1
-. nr nh*hl 1
-. @error missing arguments to .NH S
-. \}
-.\}
-.el \{\
-. nr nh*ohl \\n[nh*hl]
-. ie \\n[.$] \{\
-. nr nh*hl 0\\$1
-. ie \\n[nh*hl]<=0 \{\
-. nr nh*ohl 0
-. nr nh*hl 1
-. \}
-. el \{\
-. if \\n[nh*hl]-\\n[nh*ohl]>1 \
-. @warning .NH \\n[nh*ohl] followed by .NH \\n[nh*hl]
-. \}
-. \}
-. el .nr nh*hl 1
-. while \\n[nh*hl]>\\n[nh*ohl] \{\
-. nr nh*ohl +1
-. nr H\\n[nh*ohl] 0
-. \}
-. nr H\\n[nh*hl] +1
-.\}
-.ds SN
-.nr nh*i 0
-.while \\n[nh*i]<\\n[nh*hl] \{\
-. nr nh*i +1
-. as SN \\n[H\\n[nh*i]].
-.\}
-.SH
-\\*[SN]
-..
-.\" ****************************
-.\" ******** module toc ********
-.\" ****************************
-.\" Table of contents generation.
-.de @XS
-.da toc*div
-.ev h
-.ie \\n[.$] .XA "\\$1"
-.el .XA
-..
-.de @div-end!toc*div
-.XE
-..
-.de XA
-.ie '\\n(.z'toc*div' \{\
-. if d toc*num .toc*end-entry
-. ie \\n[.$] \{\
-. ie '\\$1'no' .ds toc*num
-. el .ds toc*num "\\$1
-. \}
-. el .ds toc*num \\n[PN]
-. br
-. par@reset
-. na
-. ll -8n
-. in (n;0\\$2)
-.\}
-.el .@error XA without XS
-..
-.de XE
-.ie '\\n(.z'toc*div' \{\
-. if d toc*num .toc*end-entry
-. ev
-. di
-.\}
-.el .@error XS without XE
-..
-.de toc*end-entry
-\\a\\t\\*[toc*num]
-.br
-.rm toc*num
-..
-.de PX
-.1C
-.if !'\\$1'no' \{\
-. ce 1
-. ps \\n[PS]+2
-. ft B
-\\*[TOC]
-. ft
-. ps
-.\}
-.nf
-.char \[toc*leader-char] .\h'1m'
-.lc \[toc*leader-char]
-.ta (u;\\n[.l]-\\n[.i]-\w'000') (u;\\n[.l]-\\n[.i])R
-.sp 2
-.toc*div
-.par@reset
-..
-.\" print the table of contents on page i
-.de TC
-.P1
-.pg@begin 1 i
-.PX \\$1
-..
-.\" ****************************
-.\" ******** module eqn ********
-.\" ****************************
-.\" Eqn support.
-.de EQ
-..
-.de EN
-..
-.de @EQ
-.br
-.ds eqn*num "\\$2
-.ie '\\$1'L' .nr eqn*type 0
-.el \{\
-. ie '\\$1'I' .nr eqn*type 1
-. el \{\
-. nr eqn*type 2
-. if !'\\$1'C' .ds eqn*num "\\$1
-. \}
-.\}
-.di eqn*div
-.in 0
-.nf
-..
-.de @div-end!eqn*div
-.@EN
-..
-.\" Note that geqn mark and lineup work correctly in centered equations.
-.de @EN
-.ie !'\\n(.z'eqn*div' .@error-recover mismatched EN
-.el \{\
-. br
-. di
-. nr eqn*have-num 0
-. if !'\\*[eqn*num]'' .nr eqn*have-num 1
-. if \\n[dl]:\\n[eqn*have-num] \{\
-. sp \\n[DD]u
-. par@reset
-. ds eqn*tabs \\n[.tabs]
-. nf
-. ie \\n[dl] \{\
-. ds@need \\n[dn]u-1v+\n[.V]u
-. chop eqn*div
-. ie \\n[eqn*type]=0 \{\
-. ta (u;\\n[.l]-\\n[.i])R
-\\*[eqn*div]\t\\*[eqn*num]
-. \}
-. el \{\
-. ie \\n[eqn*type]=1 .ta \\n[DI]u \
-(u;\\n[.l]-\\n[.i])R
-. el .ta (u;\\n[.l]-\\n[.i]/2)C \
-(u;\\n[.l]-\\n[.i])R
-\t\\*[eqn*div]\t\\*[eqn*num]
-. \}
-. \}
-. el \{\
-. ta (u;\\n[.l]-\\n[.i])R
-\t\\*[eqn*num]
-. \}
-. sp \\n[DD]u
-. ta \\*[eqn*tabs]
-. \}
-. fi
-.\}
-..
-.\" ****************************
-.\" ******** module tbl ********
-.\" ****************************
-.\" Tbl support.
-.nr tbl*have-header 0
-.\" This gets called if TS occurs before the first paragraph.
-.de TS
-.LP
-.\" cov*ab-init aliases TS to @TS
-\\*[TS]\\
-..
-.de @TS
-.sp \\n[DD]u
-.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*print-header
-.ev nf
-.tbl*header-div
-.ev
-.mk #T
-..
-.de TH
-.ie '\\n[.z]'tbl*header-div' \{\
-. nr T. 0
-. T#
-. br
-. di
-. ie \\n[dn]+\\n[FM]+\\n[HM]+2v>=\\n[.p] \{\
-. @error ridiculously long table header
-. ds@need \\n[dn]
-. tbl*print-header
-. \}
-. el \{\
-. nr tbl*header-ht \\n[dn]
-. ds@need \\n[dn]u+1v
-. tbl*print-header
-. nr tbl*have-header 1
-. \}
-.\}
-.el .@error-recover .TH without .TS H
-..
-.de @div-end!tbl*header-div
-.TH
-.TE
-..
-.de TE
-.ie '\\n(.z'tbl*header-div' .@error-recover .TS H but no .TH before .TE
-.el \{\
-. nr tbl*have-header 0
-. sp \\n[DD]u
-.\}
-.\" reset tabs
-.TA
-..
-.de tbl@bottom-hook
-.if \\n[tbl*have-header] \{\
-. nr T. 1
-. T#
-.\}
-..
-.de T&
-..
-.\" ****************************
-.\" ******** module pic ********
-.\" ****************************
-.\" Pic support.
-.\" PS height width
-.de PS
-.br
-.sp \\n[DD]u
-.ie \\n[.$]<2 .@error bad arguments to PS (not preprocessed with pic?)
-.el \{\
-. ds@need (u;\\$1)+1v
-. in +(u;\\n[.l]-\\n[.i]-\\$2/2>?0)
-.\}
-..
-.de PE
-.par@reset
-.sp \\n[DD]u+.5m
-..
-.\" ****************************
-.\" ******** module ref ********
-.\" ****************************
-.\" Refer support.
-.de ]-
-.rm [A [B [C [D [E [G [I [J [N [O [P [Q [R [S [T [V
-.rm ref*string
-..
-.\" Other
-.ds ref*spec!0 Q A T1 S V N P I C D O
-.\" Journal article
-.ds ref*spec!1 Q A T2 J S V N P I C D O
-.\" Book
-.ds ref*spec!2 Q A T1 S V P I C D O
-.\" Article within book
-.ds ref*spec!3 Q A T2 B E S V P I C D O
-.\" Tech report
-.ds ref*spec!4 Q A T2 R G P I C D O
-.\" ][ type
-.de ][
-.if r [T \{\
-. als [T1 [T
-. als [T2 [T
-.\}
-.ie d ref*spec!\\$1 .ref*build \\*[ref*spec!\\$1]
-.el \{\
-. @error unknown reference type `\\$1'
-. ref*build \\*[ref*spec!0]
-.\}
-.ref*print
-.rm ref*string
-.rm [F [T1 [T2
-..
-.\" start of reference number
-.ds [. \\*[par@sup-start]
-.\" end of reference number
-.ds .] \\*[par@sup-end]
-.\" period before reference
-.ds <. .
-.\" period after reference
-.ds >. \" empty
-.\" comma before reference
-.ds <, ,
-.\" comma after reference
-.ds >, \" empty
-.\" start collected references
-.de ]<
-.als ref*print ref*end-print
-.SH
-\&\\*[REFERENCES]
-.par@reset
-..
-.\" end collected references
-.de ]>
-.par@finish
-.als ref*print ref*normal-print
-..
-.de ref*normal-print
-.ie d [F .FS "\\*([.\\*([F\\*(.]"
-.el .FS \&
-\\*[ref*string]
-.FE
-..
-.de ref*end-print
-.ie d [F .IP "\\*([F."
-.el .XP
-\\*[ref*string]
-..
-.als ref*print ref*normal-print
-.de ref*build
-.rm ref*string ref*post-punct
-.nr ref*suppress-period 1
-.while \\n[.$] \{\
-. if d [\\$1 \{\
-. ie d ref*add-\\$1 .ref*add-\\$1
-. el .ref*add-dflt \\$1
-. \}
-. shift
-.\}
-.\" now add a final period
-.ie d ref*string \{\
-. if !\\n[ref*suppress-period] .as ref*string .
-. if d ref*post-punct \{\
-. as ref*string "\\*[ref*post-punct]
-. rm ref*post-punct
-. \}
-.\}
-.el .ds ref*string
-..
-.de ref*add-T1
-.ref*field T , "\fI" "" "\fP"
-.if r [T .nr ref*suppress-period \\n([T
-..
-.de ref*add-T2
-.ref*field T , "\\*Q" "" "\\*U"
-.if r [T .nr ref*suppress-period \\n([T
-..
-.de ref*add-P
-.ie \\n([P>0 .ref*field P , "pp. "
-.el .ref*field P , "p. "
-..
-.de ref*add-J
-.ref*field J , \fI "" \fP
-..
-.de ref*add-D
-.ref*field D "" ( )
-..
-.de ref*add-E
-.ref*field E , "ed. "
-..
-.de ref*add-G
-.ref*field G "" ( )
-..
-.de ref*add-B
-.ref*field B "" "in \fI" "" \fP
-..
-.de ref*add-O
-.ref*field O .
-.ie r [O .nr ref*suppress-period \\n([O
-.el .nr ref*suppress-period 1
-..
-.de ref*add-A
-.ref*field A ,
-.if r [A .nr ref*suppress-period \\n([A
-..
-.de ref*add-dflt
-.ref*field \\$1 ,
-..
-.\" First argument is the field letter.
-.\" Second argument is the punctuation character to use to separate this field
-.\" from the previous field.
-.\" Third argument is a string with which to prefix this field.
-.\" Fourth argument is a string with which to postfix this field.
-.\" Fifth argument is a string to add after the punctuation character supplied
-.\" by the next field.
-.de ref*field
-.if d ref*string \{\
-. ie d ref*post-punct \{\
-. as ref*string "\\$2\\*[ref*post-punct] \"
-. rm ref*post-punct
-. \}
-. el .as ref*string "\\$2 \"
-.\}
-.as ref*string "\\$3\\*([\\$1\\$4
-.if \\n[.$]>4 .ds ref*post-punct "\\$5
-.nr ref*suppress-period 0
-..
-.\" ****************************
-.\" ******** module acc ********
-.\" ****************************
-.\" Accents and special characters.
-.ds Q \(lq
-.ds U \(rq
-.ds - \(em
-.\" Characters
-.\" The idea of this definition is for the top of the 3 to be at the x-height.
-.if !c\[yogh] .char \[yogh] \Z'\v'\w'x'*0-\En[rst]u'\s[\En[.s]*8u/10u]\
-\v'\w'3'*0+\En[rst]u'3\s0'\h'\w'\s[\En[.s]*8u/10u]3'u'
-.\" Accents
-.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'
-..
-.de acc*slash-def
-.ds \\$1 \Z'\h'(u;-\En[.w]-\w'\\$2'/2)'\
-\v'(u;\En[.cdp]-\En[.cht]+\En[rst]+\En[rsb]/2)'\\$2'
-..
-.de acc*prefix-def
-.ds \\$1 \Z'\h'(u;\w'x'-\w'\\$2'/2)'\\$2'
-..
-.acc*prefix-def ' \'
-.acc*prefix-def ` \`
-.acc*prefix-def ^ ^
-.acc*prefix-def , \(ac
-.acc*prefix-def : \(ad
-.acc*prefix-def ~ ~
-.\" improved accent marks
-.de AM
-.acc*over-def ' \'
-.acc*over-def ` \`
-.acc*over-def ^ ^
-.acc*over-def ~ ~
-.acc*over-def : \(ad
-.acc*over-def v \(ah
-.acc*over-def _ \(a-
-.acc*over-def o \(ao
-.acc*under-def , \(ac
-.acc*under-def . \s[\En[.s]*8u/10u]\v'.2m'.\v'-.2m'\s0
-.acc*under-def hook \(ho
-.acc*slash-def / /
-.char \[hooko] o\\\\*[hook]
-.ds q \[hooko]
-.ds 3 \[yogh]
-.ds D- \(-D\" Icelandic uppercase eth
-.ds d- \(Sd\" Icelandic lowercase eth
-.ds Th \(TP\" Icelandic uppercase thorn
-.ds th \(Tp\" Icelandic lowercase thorn
-.ds 8 \(ss\" German double s
-.ds Ae \(AE\" AE ligature
-.ds ae \(ae\" ae ligature
-.ds Oe \(OE\" OE ligature
-.ds oe \(oe\" oe ligature
-.ds ? \(r?\" upside down ?
-.ds ! \(r!\" upside down !
-..
-.par@load-init
-.\" Make sure that no blank lines creep in at the end of this file.