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diff --git a/gnu/usr.bin/groff/tmac/tmac.e b/gnu/usr.bin/groff/tmac/tmac.e deleted file mode 100644 index 92fb264..0000000 --- a/gnu/usr.bin/groff/tmac/tmac.e +++ /dev/null @@ -1,1649 +0,0 @@ -.\" @(#)tmac.e 2.31 (Berkeley) 5/21/88 -.\" Modified by James Clark for use with groff. -.\" -.\" Copyright (c) 1988 Regents of the University of California. -.\" All rights reserved. -.\" -.\" Redistribution and use in source and binary forms are permitted -.\" provided that this notice is preserved and that due credit is given -.\" to the University of California at Berkeley. The name of the University -.\" may not be used to endorse or promote products derived from this -.\" software without specific prior written permission. This software -.\" is provided ``as is'' without express or implied warranty. -.\" %beginstrip% -.\" -.\"********************************************************************** -.\"* * -.\"* ****** - M E N R O F F / T R O F F M A C R O S ****** * -.\"* * -.\"* Produced for your edification and enjoyment by: * -.\"* Eric Allman * -.\"* Electronics Research Laboratory * -.\"* U.C. Berkeley. * -.\"* current address: * -.\"* Britton-Lee, Inc. * -.\"* 1919 Addison Street Suite 105 * -.\"* Berkeley, California 94704 * -.\"* * -.\"* VERSION 2.31 First Release: 11 Sept 1978 * -.\"* * -.\"* Documentation is available. * -.\"* * -.\"********************************************************************** -.\" -.\" Code on .de commands: -.\" *** a user interface macro. -.\" &&& a user interface macro which is redefined -.\" when used to be the real thing. -.\" $$$ a macro which may be redefined by the user -.\" to provide variant functions. -.\" --- an internal macro. -.\" -.if !\n(.g .ig -.de @R \" --- initialize number register to 0, if undefined -.if !r\\$1 .nr \\$1 0 -.. -.@R pf -.if \n(pf .nx -.if !\n(.g .ig -.de @S \" --- initialize string/macro to empty, if undefined -.if !d\\$1 .ds \\$1 \" empty -.. -.@R @\" \" debugging level -.\" *** INTERNAL GP MACROS *** -.de @C \" --- change ev's, taking info with us -.nr _S \\n(.s -.nr _V \\n(.v -.nr _F \\n(.f -.do ds _A \\n[.fam] -.nr _I \\n(.i -.ev \\$1 -.ps \\n(_S -.vs \\n(_Vu -.ft \\n(_F -.do @fam \\*(_A -'in \\n(_Iu -.xl \\n($lu -.lt \\n($lu -.rr _S -.rr _V -.rr _F -.rr _I -.ls 1 -'ce 0 -.. -.de @D \" --- determine display type (Indent, Left, Center) -.ds |p "\\$3 -.nr _d 0 -.if "\\$2"C" \ -. nr _d 1 -.if "\\$2"L" \ -. nr _d 2 -.if "\\$2"I" \ -. nr _d 3 -.if "\\$2"M" \ -. nr _d 4 -.if !\\n(_d \{\ -. nr _d \\$1 -. ds |p "\\$2 -.\} -.. -.de @z \" --- end macro -.if \n@>1 .tm >> @z, .z=\\n(.z ?a=\\n(?a -.if !"\\n(.z"" \ -\{\ -. tm Line \\n(c. -- Unclosed block, footnote, or other diversion (\\n(.z) -. di -. ex -.\} -.if \\n(?a \ -. bp \" force out final table -.ds bp -.ds @b\" \" don't start another page -.br -.if \n@>1 .tm << @z -.. -.\" *** STANDARD HEADERS AND FOOTERS *** -.ie \n(.g .ds $* \\\\$* -.el .ds $* \\\\$1 \\\\$2 \\\\$3 \\\\$4 \\\\$5 \\\\$6 \\\\$7 \\\\$8 \\\\$9 -.de he \" *** define header -.ie !\\n(.$ \ -\{\ -. rm |4 -. rm |5 -.\} -.el \ -\{\ -. ds |4 "\*($* -. ds |5 "\*($* -.\} -.. -.de eh \" *** define even header -.ie !\\n(.$ \ -. rm |4 -.el \ -. ds |4 "\*($* -.. -.de oh \" *** define odd header -.ie !\\n(.$ \ -. rm |5 -.el \ -. ds |5 "\*($* -.. -.de fo \" *** define footer -.ie !\\n(.$ \ -\{\ -. rm |6 -. rm |7 -.\} -.el \ -\{\ -. ds |6 "\*($* -. ds |7 "\*($* -.\} -.. -.de ef \" *** define even foot -.ie !\\n(.$ \ -. rm |6 -.el \ -. ds |6 "\*($* -.. -.de of \" *** define odd footer -.ie !\\n(.$ \ -. rm |7 -.el \ -. ds |7 "\*($* -.. -.de ep \" *** end page (must always be followed by a .bp) -.if \\n(nl>0 \ -\{\ -. wh 0 -. rs -. @b -.\} -.. -.\" *** INTERNAL HEADER AND FOOTER MACROS *** -.de @h \" --- header -.if \n@>1 .tm >> @h %=\\n% ?a=\\n(?a ?b=\\n(?b ?w=\\n(?w -.if (\\n(.i+\\n(.o)>=\\n(.l \ -. tm Line \\n(c. -- Offset + indent exceeds line length -.\" initialize a pile of junk -.nr ?h \\n(?H \" transfer "next page" to "this page" -.nr ?H 0 -.nr ?c \\n(?C -.nr ?C 0 -.rn |4 |0 -.rn |5 |1 -.rn |6 |2 -.rn |7 |3 -.nr _w 0 \" reset max footnote width -.nr ?W 0 \" no wide floats this page (yet) -.nr ?I 1 -.\" begin actual header stuff -.ev 2 -.rs -.if \\n(hm>0 \ -. sp |\\n(hmu \" move to header position -.@t $h \" output header title -.if \\n(tm<=0 \ -. nr tm \n(.Vu -.sp |\\n(tmu \" move to top of text -.ev -.mk _k \" for columned output -.if \\n(?n .nm 1 \" restore line numbering if n1 mode -.nr $c 1 \" set first column -.if \n@>4 .tm -- @h >> .ns nl=\\n(nl %=\\n% _k=\\n(_k tm=\\n(tm -.ie \\n(?s \ -\{\ -. nr ?s 0 -. rs -' @b -.\} -.el \ -. @n \" begin the column -.if \n@>2 .tm << @h -.. -.de @n \" --- new column or page -.if \n@>3 .tm >> @n nl=\\n(nl %=\\n% ?f=\\n(?f ?o=\\n(?o -.if \\n(bm<=0 \ -. nr bm \\n(.Vu -.if (\\n(_w<=\\n($l)&(\\n(?W=0) \ -\{\ -. nr _b (\\n(ppp*\\n($vu)/200u \" compute fudge factor (must be < 1P) -. if \\n(_bu>((\\n(bmu-\\n(fmu-((\\n(tpp*\\n($vu)/100u))/2u) \ -. nr _b (\\n(ppp*\\n($vu)/100u-\n(.Vu -. nr _b +\\n(bmu -.\} -.nr _B \\n(_bu -.ch @f -.wh -\\n(_bu @f -.nr _b +(\\n(ppp*\\n($vu)/100u \" add 1 paragraph v in case of sweep past -.if \n@>2 .tm @n .p=\\n(.p bm=\\n(bm _b=\\n(_b _B=\\n(_B -.nr ?f 0 \" reset footnote flag -.if \\n(?o \ -\{\ -. (f _ \" reprocess footnotes which run off page -. nf -. |o -. fi -. )f -. rm |o -.\} -.nr ?o 0 -.if \\n(?T \ -\{\ -. nr _i \\n(.i -. in \\n($iu -. |h \" output the table header -. in \\n(_iu -. rr _i -. mk #T \" for tbl commands -. ns -.\} -.if (\\n(?a)&((\\n($c<2):(\\n(?w=0)) \ -\{\ -. nr ?a 0 \" output floating keep -. @k |t -. if \\n(?w \ -. mk _k \" don't overstrike wide keeps -. nr ?w 0 -.\} -.os -.$H \" special column header macro -.ns -.. -.de @f \" --- footer -.if \n@>1 .tm >> @f %=\\n% nl=\\n(nl ?a=\\n(?a ?b=\\n(?b ?f=\\n(?f -.if \n@>2 .nr VL \\n(.pu-\\n(nlu -.if \n@>2 .tm @f bm=\\n(bm _B=\\n(_B _b=\\n(_b .p-nl=\\n(VL -.ec -.if \\n(?T \ -\{\ -. nr T. 1 \" for tbl commands (to output bottom line) -. T# 1 \" output the sides and bottom lines -. br -.\} -.ev 2 -.ce 0 -.if \\n(?b \ -\{\ -. nr ?b 0 -. @k |b\" \" output bottom of page tables -.\} -.if \\n(?f \ -. @o \" output footnote if present -.ie \\n($c<\\n($m \ -. @c \" handle new column -.el \ -. @e \" new page -.ev -.if \n@>2 .tm << @f -.. -.de @o \" --- output footnote -.nf -.ls 1 -.in 0 -.if \n@>2 .tm @o last printed text = \\n(nl placing @r trap at -\\n(_B -.wh -\\n(_Bu @r -.|f -.fi -.if \n@>2 .tm @o triggered @r (?o) = \\n(?o -.if \\n(?o \ -\{\ -. di \" just in case triggered @r -. if \\n(dn=0 \ -\{\ -. rm |o -. nr ?o 0 -. \} -. nr dn \\n(_D -. rr _D -.\} -.rm |f -.ch @r -.. -.de @c \" --- new column -.if \n@>2 .tm >> @c %=\\n% -.rs -.sp |\\n(_ku -.@O +\\n($lu+\\n($su -.nr $c +1 -.@n -.. -.de @e \" --- end page -.if \n@>2 .tm >> @e -.@O \\n(_ou -.rs -.sp |\\n(.pu-\\n(fmu-((\\n(tpp*\\n($vu)/100u) \" move to footer position -.@t $f \" output footer title -.nr ?h 0 -.bp -.. -.de @t \" --- output header or footer title -.if !\\n(?h \ -\{\ -. sz \\n(tp \" set header/footer type fonts, etc. -. @F \\n(tf -. lt \\n(_Lu \" make title span entire page -. nf -. \\$1 -. br -.\} -.. -.de $h \" $$$ print header -.ds |z -.if !\\n(?c \ -\{\ -. if e .ds |z "\\*(|0 -. if o .ds |z "\\*(|1 -.\} -.if !\(ts\\*(|z\(ts\(ts \ -' tl \\*(|z -.rm |z -.. -.de $f \" $$$ print footer -.ds |z -.if \\n(?c \ -\{\ -. if e .ds |z "\\*(|0 -. if o .ds |z "\\*(|1 -.\} -.if \(ts\\*(|z\(ts\(ts \ -\{\ -. if e .ds |z "\\*(|2 -. if o .ds |z "\\*(|3 -.\} -.if !\(ts\\*(|z\(ts\(ts \ -' tl \\*(|z -.rm |z -.. -.de @r \" --- reprocess overflow footnotes -.if \n@>3 .tm >> @r .z=\\n(.z ?f=\\n(?f ?a=\\n(?a ?b=\\n(?b _b=\\n(_b -.di |o \" save overflow footnote -.nr ?o 1 -.nr _D \\n(dn -.ns -.. -.\" *** COMMANDS WITH VARIANT DEFINITIONS *** -.rn bp @b \" --- begin page -.de bp \" *** begin new page (overrides columns) -.nr $c \\n($m \" force new page, not new column -.ie \\n(nl>0 \ -. @b \\$1 -.el \ -\{\ -. if \\n(.$>0 \ -. pn \\$1 -. if \\n(?I \ -. @h \" 'spring' the header trap -.\} -.br -.wh 0 @h \" reset header -.. -.rn ll xl \" *** special line length (local) -.de ll \" *** line length (global to environments) -.xl \\$1 -.lt \\$1 -.nr $l \\n(.l -.if (\\n($m<=1):(\\n($l>\\n(_L) \ -. nr _L \\n(.l -.. -.rn po @O \" --- local page offset -.de po \" *** page offset -.@O \\$1 -.nr _o \\n(.o -.. -.\" Redefine the fam request to set the family in -.\" environment 2 as well as the current environment. -.if !\n(.g .ig -.do rn fam @fam \" --- set family in current environment -.do de fam \" *** set font family in ev 2 and current ev -.do @fam \\$1 -.ev 2 -.do @fam \\$1 -.ev -.. -.\" *** MISCELLANEOUS ROFF COMMANDS *** -.de hx \" *** suppress headers and footers next page -.nr ?H 1 -.. -.de ix \" *** indent, no break -'in \\$1 -.. -.de bl \" *** contiguous blank lines -.br -.ne \\$1 -.rs -.sp \\$1 -.. -.de n1 \" *** line numbering 1 -.nm 1 -.xl -\w'0000'u -.nr ?n 1 -.. -.de n2 \" *** line numbering 2 -.nm \\$1 -.ie \\n(.$ \ -. xl -\w'0000'u -.el \ -. xl \\n($lu -.. -.de pa \" *** new page -.bp \\$1 -.. -.de ro \" *** roman page numbers -.af % i -.. -.de ar \" *** arabic page numbers -.af % 1 -.. -.de m1 \" *** position one space -.nr _0 \\n(hmu -.nr hm \\$1v -.nr tm +\\n(hmu-\\n(_0u -.rr _0 -.. -.de m2 \" *** position two space -.nr tm \\n(hmu+\\n(tpp+\\$1v -.. -.de m3 \" *** position three space -.nr bm \\n(fmu+\\n(tpp+\\$1v -.. -.de m4 \" *** position four space -.nr _0 \\n(fmu -.nr fm \\$1v -.nr bm +\\n(fmu-\\n(_0u -.. -.de sk \" *** leave a blank page (next page) -.if \\n(.$>0 \ -. tm Line \\n(c. -- I cannot skip multiple pages -.nr ?s 1 -.. -.\" *** MISCELLANEOUS USER SUPPORT COMMANDS *** -.if !\n(.g .ig -.de re \" *** reset tabs (TROFF defines 15 stops default) -.ta T 0.5i -.. -.if \n(.g .ig -.de re -.ta 0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i +0.5i -.. -.de ba \" *** set base indent -.ie \\n(.$ \ -. nr $i \\$1n -.el \ -. nr $i \\n(siu*\\n($0u -.. -.de hl \" *** draw horizontal line -.br -.ie \n(.g .do nr _I \\n[.in] -.el .nr _I \\n(.i -\l'\\n(.lu-\\n(_Iu' -.sp -.. -.\" *** PARAGRAPHING *** -.de pp \" *** paragraph -.lp \\n(piu -.. -.de lp \" *** left aligned paragraph -.@p -.if \\n(.$ \ -. ti +\\$1 -.nr $p 0 1 -.. -.de ip \" *** indented paragraph w/ optional tag -.if (\\n(ii>0)&(\\n(ii<1n) \ -. nr ii \\n(iin -.nr _0 \\n(ii -.if \\n(.$>1 \ -. nr _0 \\$2n -.@p \\n(_0u -.if \\w"\\$1" \ -\{\ -. ti -\\n(_0u -. ie \\w"\\$1">=\\n(_0 \ -\{\ -\&\\$1 -. br -. \} -. el \&\\$1\h'|\\n(_0u'\c -.\} -.rr _0 -.. -.de np \" *** numbered paragraph -.\" use string comparison in case user has changed format of $p -.if '\\n($p'-1' \ -. nr $p 0 \" reset number after .bu -.nr $p +1 \" increment paragraph number -.@p \w'\0(000)\0'u -.ti -\w'\0(000)\0'u -\0(\\n($p)\h'|\w'\0(000)\0'u'\c -.. -.de bu \" *** bulleted paragraph -.br -.\" use string comparison in case user has changed format of $p -.if '\\n($p'-1' \ -. ns \" don't space between .bu paragraphs -.nr $p 0-1 \" mark "bulleted paragraph" mode -.@p \w'\0\(bu\0'u -.ti -\w'\0\(bu\0'u -\0\(bu\0\c -.. -.de @p \" --- initialize for paragraph -.if "\\n(.z"|e" .tm Line \\n(c. -- Unmatched continued equation -.in \\n($iu+\\n(pou -.if \\n(.$ \ -. in +\\$1n -.ce 0 -.fi -.@F \\n(pf -.sz \\n(pp -.sp \\n(psu -.ne \\n(.Lv+\\n(.Vu -.ns -.. -.\" *** SECTION HEADINGS *** -.de sh \" *** section heading -.fi -.if (\\n(si>0)&(\\n(si<1n) \ -. nr si \\n(sin -.ce 0 -.@d "\\$1" +1 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 -.if !"\\$2"_" \ -\{\ -. ds |n \&\\$2 -. $p "\\*(|n" "\\*($n" \\n($0 -. $0 "\\*(|n" "\\*($n" \\n($0 -. rm |n -.\} -.nr $p 0 1 \" reset .np count -.. -.de @d \" --- change section depth -.if !""\\$1" \ -. nr $0 \\$1 -.if \\n($0&(\\n(.$>1) \ -. nr $\\n($0 \\$2 -.ds $n \&\" -.ie \\n($0>=1 \ -\{\ -. if '\\n($1'0' \ -. nr $1 1 -. if (\\n(.$>=3) .if !"\\$3"-" \ -. nr $1 \\$3 -. as $n \\n($1 -.\} -.el \ -. nr $1 0 -.ie \\n($0>=2 \ -\{\ -. if '\\n($2'0' \ -. nr $2 1 -. if (\\n(.$>=4) .if !"\\$4"-" \ -. nr $2 \\$4 -. as $n .\\n($2 -.\} -.el \ -. nr $2 0 -.ie \\n($0>=3 \ -\{\ -. if '\\n($3'0' \ -. nr $3 1 -. if (\\n(.$>=5) .if !"\\$5"-" \ -. nr $3 \\$5 -. as $n .\\n($3 -.\} -.el \ -. nr $3 0 -.ie \\n($0>=4 \ -\{\ -. if '\\n($4'0' \ -. nr $4 1 -. if (\\n(.$>=6) .if !"\\$6"-" \ -. nr $4 \\$6 -. as $n .\\n($4 -.\} -.el \ -. nr $4 0 -.ie \\n($0>=5 \ -\{\ -. if '\\n($5'0' \ -. nr $5 1 -. if (\\n(.$>=7) .if !"\\$7"-" \ -. nr $5 \\$7 -. as $n .\\n($5 -.\} -.el \ -. nr $5 0 -.ie \\n($0>=6 \ -\{\ -. if '\\n($6'0' \ -. nr $6 1 -. if (\\n(.$>=8) .if !"\\$8"-" \ -. nr $6 \\$8 -. as $n .\\n($6 -.\} -.el \ -. nr $6 0 -.. -.de sx \" *** heading up, no increment (2.1.1 -> 2.1) -.ce 0 -.ul 0 -.nr _0 \\n($0-1 -.if \\n(.$ .nr _0 +1 -.if \\n(.$ .nr _0 \\$1 -.@d \\n(_0 -.rr _0 -.$p "" "" \\n($0 -.nr $p 0 1 \" reset .np count -.. -.de uh \" *** unnumbered section heading -.$p "\\$1" -.$0 "\\$1" -.. -.de $p \" $$$ print section heading -.if (\\n(si>0)&(\\n(.$>2) \ -. nr $i \\$3*\\n(si -.in \\n($iu -.ie !"\\$1\\$2"" \ -\{\ -. sp \\n(ssu \" one of them is non-null -. ne \\n(.Lv+\\n(.Vu+\\n(psu+((\\n(spp*\\n($vu*\\n(.Lu)/100u) -. \" exdent if \\$3 > 0 -. ie 0\\$3 \ -. ti -(\\n(siu-\\n(sou) -. el \ -. ti +\\n(sou -. @F \\n(sf -. sz \\n(sp -. if 0\\$3 \ -. $\\$3 -. if \w"\\$2">0 \\$2. -. if \w"\\$1">0 \\$1\f1\ \ \& -.\} -.el \ -. sp \\n(psu -.@F \\n(pf -.sz \\n(pp -.. -.\" *** COLUMNNED OUTPUT *** -.de 2c \" *** double columned output -.br -.if \\n($m>1 \ -. 1c \" revert to 1c if already 2c -.nr $c 1 -.nr $m 2 -.if \\n(.$>1 \ -. nr $m \\$2 -.if \\n(.$>0 \ -. nr $s \\$1n \" param 1: column seperation -.nr $l (\\n(.l-((\\n($m-1)*\\n($s))/\\n($m -.xl \\n($lu -.mk _k -.ns -.. -.de 1c \" *** single columned output -.br -.nr $c 1 -.nr $m 1 -.ll \\n(_Lu \" return to normal output -.sp |\\n(.hu -.@O \\n(_ou -.. -.de bc \" *** begin column -.sp 24i -.. -.\" *** FLOATING TABLES AND NONFLOATING BLOCKS *** -.de (z \" *** begin floating keep -.if \n@>4 .tm >> (z, .z=\n(.z -.@D 4 \\$1 \\$2 -.@( -.. -.de )z \" *** end floating keep -.if \n@>4 .tm >> )z, .z=\n(.z -.sp \\n(zsu -.@) -.if \n@>4 .tm -- )z << @), .z=\n(.z -.rr _0 -.if !\\n(?b \ -. nr dn +(\\n(ppp*\\n($vu)/200u+\\n(zsu -.nr dl -\n(.H \" fudge factor necessary to make it work -.ie ((\\n(dn+\n(.V)>=\\n(.t):(\\n(?a):((\\n(dl>\\n($l)&(\\n($c>1)) \ -\{\ -. nr ?a 1 -. if (\\n(dl>\\n($l)&(\\n($m>1) \ -. nr ?w 1 \" mark wider than one column (top) -. ds |x |t -.\} -.el \ -\{\ -. nr ?b 1 -. if (\\n(dl>\\n($l)&(\\n($m>1) \ -. nr ?W 1 \" mark wider than one column (bottom) -. nr _b +\\n(dnu -. \" avoid moving @f back past the current position -. if \\n(.p-\\n(nl-\n(.V<\\n(_b \ -. nr _b \\n(.p-\\n(nl-\n(.V -. ch @f -\\n(_bu -. ds |x |b -.\} -.da \\*(|x \" copy to save macro -.nf -.ls 1 -.nr ?k 1 -.if \n@>4 .tm -- )z >> \\*(|x -\!.if \\\\n(nl>(\\\\n(tm+2v) .ne \\n(dnu-\\n(zsu -.|k\" \" and the body -.ec -.if \n@>4 .tm -- )z << \\*(|x, .z=\\n(.z -.nr ?k 0 -.rm |k\" \" remove the temp macro -.da -.in 0 -.ls 1 -.xl \\n($lu -.ev -.if \n@>4 .tm << )z, .z=\\n(.z -.. -.de @k \" --- output floating keep -.if \n@>4 .tm >> @k, $1=\\$1, .z=\\n(.z -.ev 1 -.nf -.ls 1 -.in 0 -.sp \\n(zsu -.\\$1 -.ec -.br -.rm \\$1 -.ev -.. -.de (t \" XXX temp ref to (z -.(z \\$1 \\$2 -.. -.de )t \" XXX temp ref to )t -.)z \\$1 \\$2 -.. -.de (b \" *** begin block -.br -.@D 3 \\$1 \\$2 -.sp \\n(bsu -.@( -.. -.de )b \" *** end block -.br -.@) -.if (\\n(bt=0):(\\n(.t<\\n(bt) \ -. ne \\n(dnu \" make it all on one page -.ls 1 -.nf -.|k -.ec -.fi -.in 0 -.xl \\n($lu -.ev -.rm |k -.sp \\n(bsu+\\n(.Lv-1v -.. -.de @( \" --- begin keep -.if !"\\n(.z"" .tm Line \\n(c. -- Illegal nested keep \\n(.z -.@M -.di |k -\!'rs -.. -.de @M \" --- set modes for display -.nr ?k 1 -.@C 1 -.@F \\n(df -.if \\n($R .@V -.vs \\n(.sp*\\n($Vu/100u -.nf -.if "\\*(|p"F" \ -. fi \" set fill mode if "F" parameter -.if \\n(_d=4 \ -. in 0 -.if \\n(_d=3 \ -\{\ -. in +\\n(biu -. xl -\\n(biu -.\} -.if \\n(_d=1 \ -. ce 10000 -.. -.de @) \" --- end keep -.br -.if !"\\n(.z"|k" .tm Line \\n(c. -- Close of a keep which has never been opened -.nr ?k 0 -.di -.in 0 -.ce 0 -.. -.de (c \" *** begin block centered text -.if "\\n(.z"|c" .tm Line \\n(c. -- Nested .(c requests -.di |c -.. -.de )c \" *** end block centered text -.if !"\\n(.z"|c" .tm Line \\n(c. -- Unmatched .)c -.br \" force out final line -.di -.if \n@>4 .tm >> .)c .l=\\n(.l .i=\\n(.i $i=\\n($i dl=\\n(dl -.ev 1 -.ls 1 -.in (\\n(.lu-\\n(.iu-\\n(dlu)/2u -.if \n@>4 .tm -- .)c << .in .l=\\n(.l .i=\\n(.i dl=\\n(dl -.nf -.|c -.ec -.in -.ls -.ev -.rm |c -.. -.\" *** BLOCK QUOTES (OR WHATEVER) AND LISTS *** -.de (q \" *** begin block quote -.br -.@C 1 -.fi -.sp \\n(qsu -.in +\\n(qiu -.xl -\\n(qiu -.sz \\n(qp -.. -.de )q \" *** end block quote -.br -.ev -.sp \\n(qsu+\\n(.Lv-1v -.nr ?k 0 -.. -.de (l \" *** begin list -.br -.sp \\n(bsu -.@D 3 \\$1 \\$2 -.@M -.. -.de )l \" *** end list -.br -.ev -.sp \\n(bsu+\\n(.Lv-1v -.nr ?k 0 -.. -.\" *** PREPROCESSOR SUPPORT *** -.\" -.\" EQN -.\" -.de EQ \" *** equation start -.ec -.if !\\n(?e \ -\{\ -. if "\\n(.z"|e" .tm Line \\n(c. -- Nested .EQ request -. @D 1 "\\$1" "\\$2" -. @C 2 -. di |e -.\} -.ls 1 -.in 0 -.nf -.. -.de EN \" *** equation end -.br -.ie "\\$1"C" \ -\{\ -. nr ?e 1 -. sp \\n(esu -.\} -.el \ -\{\ -. nr ?e 0 -. di -. if \\n(dn \ -. @q \" actual equation output -. rm |e -. ev -.\} -.. -.de @q \" --- equation output -.nr _Q \\n(dnu -.ev -.sp \\n(esu \" output rest of preceeding text -.if !"\\n(.z"" \!.ne \\n(_Qu -.ne \\n(_Qu+\n(.Vu \" keep it on one page -.@C 2 \" .ev 2 may be jumbled from header -.if \\n(_d=1 \ -. in (\\n(.lu+\\n($iu-\\n(dlu)/2u -.if \\n(_d=2 \ -. in \\n($iu -.if \\n(_d=3 \ -. in \\n(biu+\\n($iu -.if \\n(_d=4 \ -. in 0 -.mk _q -.if \n@>1 .tm --@e: _Q=\\n(_Q _q=\\n(_q nl=\\n(nl |p=\\*(|p -.if !"\\*(|p"" \ -\{\ -. rs -. sp (\\n(_Qu-\\n(.vu)/2u -. tl """\\*(|p" -. rt \\n(_qu -.\} -.|e -.sp |\\n(_qu+\\n(_Qu -.sp \\n(esu+\\n(.Lv-1v -.rr _q -.rr _Q -.. -.\" -.\" TBL -.\" -.de TS \" *** table start -.sp \\n(bsu -.@C 1 -.fi \" drop into fill mode for text boxes -.if "\\$1"H" \ -\{\ -. di |h \" save header part -. nr ?T 1 -.\} -.ls 1 -.ch @f -(\\n(_bu+1v) \" set pseudo-trap for bottom line -.if \\n(.p-\\n(_b-1v<=\\n(nl \ -. ch @f \\n(nlu+\n(.Vu -.. -.de TH \" *** end header part of table -.nr T. 0 -.T# 0 -.di -.nr _T \\n(?T -.nr ?T 0 -.ne \\n(dnu+1v -.nr ?T \\n(_T -.nr _i \\n(.i -.in 0 -.|h \" put in the initial header -.in \\n(_iu -.rr _i -.mk #T -.. -.de TE \" *** table end -.nr ?T 0 -.ch @f -\\n(_bu \" reset pseudo-trap -.if \\n(.p-\\n(_b<=\\n(nl \ -. ch @f \\n(nlu+\n(.Vu -.ev -.sp \\n(bsu+\\n(.Lv-1v -.re -.. -.\" -.\" REFER -.\" -.de ][ \" *** refer output -.if \\$1>5 .tm Bad arg to [] -.[\\$1 -.. -.de [0 \" --- other -.(f -.ip "\\*([F.\0" -.if !"\\*([A"" \\*([A, -.if !"\\*([T"" \\f2\\*([T\\f1\c -.if !"\\*([T"" .if !"\\*([O"" ,\ -.ie !"\\*([O"" \\*([O -.el .if !"\\*([T"" \&. -.if !"\\*([D"" \\*([D. -.@p -.)f -.. -.de [1 \" --- journal article -.(f -.ip "\\*([F.\0" -\\*([A, -.if !"\\*([T"" \\*(lq\\*([T,\\*(rq -.if "\\*([V"" \\f2\\*([J\\f1, -.if !"\\*([V"" \\f2\\*([J\\f1 -.if !"\\*([V"" \\f3\\*([V\\f1\c -.if !"\\*([N"" (\\*([N)\c -.if !"\\*([P"" \ -\{\ -. ie \\n([P>0 \ pp.\& -. el \ p.\& -\\*([P -.\} -.if !"\\*([I"" .if "\\*([R"" \\*([I, -(\\*([D). -.if !"\\*([O"" \\*([O -.)f -.. -.de [2 \" --- book -.(f -.ip "\\*([F.\0" -\\*([A, \\f2\\*([T,\\f1 -\\*([I\c -.if !"\\*([C"" , \\*([C\c - (\\*([D). -.if !"\\*([G"" Gov't. ordering no. \\*([G -.if !"\\*([O"" \\*([O -.)f -.. -.de [3 \" --- article in book -.(f -.ip "\\*([F.\0" -\\*([A, \\*(lq\\*([T,\\*(rq -.if !"\\*([P"" pp. \\*([P -in \\f2\\*([B\\f1, \c -.if !"\\*([E"" ed. \\*([E, \c -.if !"\\*([I"" \\*([I\c -.if !"\\*([C"" , \\*([C\c - (\\*([D). -.if !"\\*([O"" \\*([O -.)f -.. -.de [4 \" --- report -.(f -.ip "\\*([F.\0" -\\*([A, \\*(lq\\*([T,\\*(rq -\\*([R\c -.if !"\\*([G"" \& (\\*([G)\c -.if !"\\*([I"" , \\*([I\c -.if !"\\*([C"" , \\*([C\c - (\\*([D). -.if !"\\*([O"" \\*([O -.)f -.. -.de [5 \" --- tm style -.(f -.ip "\\*([F.\0" -\\*([A, \\f2\\*([T\\f1, -.ie \\n(TN \\*([M. -.el Bell Laboratories internal memorandum (\\*([D). -.)f -.. -.de ]< -.$p References -.lp -.rm (f )f -.. -.de ]> -.sp -.. -.de ]- -.rm [V [P [A [T [N [C [B [O [R [I [E [D -.. -.ie \n(.V<1v \ -\{\ -. ds [. \s-2\v'-.4m'\f1 -. ds .] \v'.4m'\s+2\fP -.\} -.el \ -\{\ -. ds [. " [ -. ds .] ] -.\} -.\" -.\" IDEAL -.\" -.de IS \" *** start ideal picture -.nr g7 \\n(.u -.ls 1 -.. -.de IF -.if \\n(g7 .fi -.ls -.. -.de IE \" *** end ideal picture -.if \\n(g7 .fi -.ls -.. -.\" -.\" PIC -.\" -.de PS \" *** start picture: $1=height, $2=width in units or inches -.sp 0.3 -.nr g7 \\$2 -.in (\\n(.lu-\\n(g7u)/2u -.ne \\$1u -.nr g7 \\n(.u -.ls 1 -.. -.de PE \" *** end picture -.ls -.in -.if \\n(g7 .fi -.sp .6 -.. -.\" -.\" GREMLIN -.\" -.de GS \" *** start gremlin picture -.nr g7 (\\n(.lu-\\n(g1u)/2u -.if "\\$1"L" .nr g7 \\n(.iu -.if "\\$1"R" .nr g7 \\n(.lu-\\n(g1u -.in \\n(g7u -.nr g7 \\n(.u -.ls 1 -.nf -.ne \\n(g2u -.. -.de GE \" *** end gremlin picture -.GF -.sp .6 -.. -.de GF \" *** finish gremlin picture; stay at top -.ls -.in -.if \\n(g7 .fi -.. -.\" *** FONT AIDS *** -.de sz \" *** set point size and vertical spacing -.ps \\$1 -.if \\n($r .@v -.vs \\n(.sp*\\n($vu/100u \" default vs at pointsize + 20% -.. -.de @v \" --- possibly set $v from $r -.if (1i>=240u)&(1p<=\\n($r)&(\\n($r<=4p) .nr $v \\n($r00/1p -.. -.de @V \" --- possibly set $V from $R -.if (1i>=240u)&(1p<=\\n($R)&(\\n($R<=4p) .nr $V \\n($R00/1p -.. -.de @E \" --- store in _F argument to \f for restoring font -.ie \\n(.f<10 \ -. ds _F \\n(.f -.el \ -\{\ -. ie \\n(.f<100&\n(.g \ -. ds _F (\\n(.f -. el \ -. ds _F P -.\} -.. -.de r \" *** enter roman font -.@E -.ft 1 -.if \\n(.$ \&\\$1\f\\*(_F\\$2 -.. -.de i \" *** enter italic -.@E -.ft 2 -.if \\n(.$ \&\\$1\f\\*(_F\\$2 -.. -.de b \" *** enter boldface -.@E -.ft 3 -.if \\n(.$ \&\\$1\f\\*(_F\\$2 -.. -.de rb \" *** enter real boldface -.@E -.ft 3 -.if \\n(.$ \&\\$1\f\\*(_F\\$2 -.. -.de bi \" *** enter bold italic -.@E -.ft 4 -.if \\n(.$ \&\\$1\f\\*(_F\\$2 -.. -.de u \" *** enter underlined word -\&\\$1\l'|0\(ul'\\$2 -.. -.\" a better version of u -.if !\n(.g .ig -.de u -\Z'\\$1'\v'.25m'\D'l \w'\\$1'u 0'\v'-.25m'\\$2 -.. -.de q \" *** enter quoted word -\&\\*(lq\\$1\\*(rq\\$2 -.. -.de bx \" *** enter boxed word -\k~\(br\|\\$1\|\(br\l'|\\n~u\(rn'\l'|\\n~u\(ul'\^\\$2 -.. -.de sm \" *** print in smaller font -\s-1\\$1\\s0\\$2 -.. -.de @F \" --- change font (0 -> no change) -.nr ~ \\$1 -.if \\n~>0 \ -. ft \\n~ -.rr ~ -.. -.\" *** FOOTNOTING *** -.de (f \" *** begin footnote -.ec -.if "\\n(.z"|f" .tm Line \\n(c. -- Illegal footnote nesting -.ie "\\n(.z"" \ -\{\ -. nr _D \\n(dn -. nr _0 1v+\\n(nlu -. ev 2 -. da |f -. in 0 -. xl \\n($lu-\\n(fuu -. @F \\n(ff -. sz \\n(fp -. vs \\n(.sp*\\n($Vu/100u -. if !\\n(?f \ -\{\ -. nr _b +1v \" allow space for $s -. $s -. \} -. br -. if \\n(.p-\\n(_b-\\n(_0-\\n(.h-1v-\\n(fs<0 \ -\{\ -. da\" \" won't fit on page at all -. bc -. if !\\n(?f \ -. rm |f -. da |f -.\" next five lines could be dropped if headers had their own environment -. in 0 \" reset everything from .bc -. xl \\n($lu-\\n(fuu -. @F \\n(ff -. sz \\n(fp -. vs \\n(.sp*\\n($Vu/100u -. if !\\n(?f \ -. $s -. br -. \} -. rr _0 -. sp \\n(fsu -. nr ?f 1 -. fi -. if !"\\$1"_" \ -. ti \\n(fiu -. if \n@>2 .tm << (f $f=\\n($f -.\} -.el \ -\{\ -. ev 2 -. in 0 -. xl \\n($lu-\\n(fuu -. @F \\n(ff -. sz \\n(fp -. vs \\n(.sp*\\n($Vu/100u -. fi -\!.(f \\$1 -\!.@N -.\} -.. -.de @N \" --- set no fill mode in the top-level diversion -.ie "\\n(.z"" .nf -.el \!.@N -.. -.de )f \" *** end footnote -.ie "\\n(.z"|f" \ -\{\ -. if \\n* \ -. nr $f +1 -. ds * \\*{\\n($f\\*}\k* -. nr * 0 -. in 0 -. da -. ev -. if \\n(_w<\\n(dl \ -. nr _w \\n(dl \" compute maximum fn width -. nr _b +\\n(dn -. ch @f -\\n(_bu -. if \\n(.p-\\n(_b<=\\n(nl \ -. ch @f \\n(nlu+\n(.Vu -. nr dn \\n(_D -. rr _D -.\} -.el \ -\{\ -. br -\!.)f -. ev -.\} -.. -.@R ff -.if \n(ff<=0 \ -. nr ff 1 \" footnote font: Times Roman -.@R fp -.if \n(fp<=0 \ -. nr fp 8 \" footnote pointsize -.de $s \" $$$ footnote separator -\l'2i' -.. -.\" *** DELAYED TEXT *** -.de (d \" *** begin delayed text -.am |d )d -.sp \\n(bsu -.. -.de )d \" *** end delayed text -.if \\n# \ -. nr $d +1 -.ds # [\\n($d]\k# -.rr # -.. -.de pd \" *** print delayed text -.|d -.rm |d -.nr $d 1 1 -.ds # [1]\k# -.. -.\" *** INDEXES (TABLE OF CONTENTS) *** -.nr _x 0 1 -.af _x a -.de (x \" *** begin index entry -.if \n@>4 .tm >> (x, .z=\\n(.z -.ds |X x -.if \\n(.$>0 \ -. ds |X \\$1 -.ie "\\n(.z"" \ -. nr _z 0 -.el \ -. nr _z 1 -.@\\n(_z -.. -.de @0 \" --- finish (x if no current diversion -.am %\\*(|X )x -.sp \\n(xsu -.ti -\\n(piu -.. -.de @1 \" --- finish (x if current diversion -.if "\\n(_x"z" .nr _x 0 -.de =\\n+(_x )x -.. -.de )x \" *** end index entry -.if \n@>4 .tm >> )x, .z=\\n(.z -.ie "\\n(.z"" \ -\{\ -. ds |x \\n% -. if \\n(.$>0 \ -. ds |x \\$1 -. if "\\*(|x"_" \ -. ig .. -. am %\\*(|X .. -. if \w"\\$2">(\\n(.l-\\n(.i-\\n(.k) \ -. ti +\\n(xuu -\\\\a\\\\t\\$2\\*(|x -... -. rm |x -. rm |X -.\} -.el \ -\{\ -\!.(x \\*(|X -\!\\\\*(=\\n(_x\\\\ -\!.)x \\$1 \\$2 -\!.rm =\\n(_x -.\} -.. -.de xp \" *** print the index -.br -.@C 2 -.ls 1 -.vs \\n(.sp*\\n($Vu/100u -.fi -.in +\\n(piu -.ds |X x -.if \\n(.$>0 \ -. ds |X \\$1 -.xl -(\\n(xuu+\w'...'u) -.di |x -.%\\*(|X -.br -.di -.rm %\\*(|X -.xl \\n($lu -.rm |X -.ev -.nf -.in 0 -.ta \\n(.lu-\\n(xuuR \\n(.luR -.|x -.fi -.in -.rm |x -.. -.de +c \" *** begin chapter -.ep \" force out footnotes -.if \\n(?o:\\n(?a \ -\{\ -. bp \" force out a table or more footnote -. rs -. ep -.\} -.nr ?C 1 -.nr $f 1 1 -.ds * \\*{1\\*}\k* -.if \\n(?R \ -. pn 1 -.bp -.in \\n($iu \" reset the indent -.rs -.ie \\n(.$ \ -. $c "\\$1" -.el \ -. sp 3 -.. -.de ++ \" *** declare chapter type -.nr _0 0 -.if "\\$1"C" \ -. nr _0 1 \" chapter -.if "\\$1"RC" \ -. nr _0 11 \" renumbered chapter -.if "\\$1"A" \ -. nr _0 2 \" appendix -.if "\\$1"RA" \ -. nr _0 12 \" renumbered appendix -.if "\\$1"P" \ -. nr _0 3 \" preliminary material -.if "\\$1"B" \ -. nr _0 4 \" bibliographic material -.if "\\$1"AB" \ -. nr _0 5 \" abstract -.if \\n(_0=0 \ -. tm Line \\n(c. -- Bad mode to .++ -.nr ?R 0 -.if \\n(_0>10 \ -.\{ -. nr ?R 1 -. nr _0 -10 -.\} -.nr ch 0 1 -.if (\\n(_0=3):(\\n(_0=5) \ -. pn 1 \" must do before .ep -.if !\\n(_0=\\n(_M .if \\n(_M=3 \ -. pn 1 \" must do before .ep -.ep \" end page for correct page number types -.if \\n(_0=1 \ -\{\ -. af ch 1 -. af % 1 -.\} -.if \\n(_0=2 \ -\{\ -. af ch A -. af % 1 -.\} -.if \\n(_0=3 \ -. af % i -.if \\n(_0=4 \ -. af % 1 -.if \\n(_0=5 \ -. af % 1 -.if \\n(.$>1 \ -. he \\$2 -.nr _M \\n(_0 -.rr _0 -.. -.de $c \" $$$ print chapter title -.sz 12 -.ft 3 -.ce 1000 -.if \\n(_M<3 \ -. nr ch +1 -.ie \\n(_M=1 CHAPTER\ \ \\n(ch -.el .if \\n(_M=2 APPENDIX\ \ \\n(ch -.if \w"\\$1" .sp 3-\\n(.L -.if \w"\\$1" \\$1 -.if (\\n(_M<3):(\w"\\$1") \ -. sp 4-\\n(.L -.ce 0 -.ft -.sz -.ie \\n(_M=1 \ -. $C Chapter \\n(ch "\\$1" -.el .if \\n(_M=2 \ -. $C Appendix \\n(ch "\\$1" -.. -.de tp \" *** title page -.hx -.bp -.br -.rs -.pn \\n% -.. -.\" *** DATES *** -.if \n(mo=1 .ds mo January -.if \n(mo=2 .ds mo February -.if \n(mo=3 .ds mo March -.if \n(mo=4 .ds mo April -.if \n(mo=5 .ds mo May -.if \n(mo=6 .ds mo June -.if \n(mo=7 .ds mo July -.if \n(mo=8 .ds mo August -.if \n(mo=9 .ds mo September -.if \n(mo=10 .ds mo October -.if \n(mo=11 .ds mo November -.if \n(mo=12 .ds mo December -.if \n(dw=1 .ds dw Sunday -.if \n(dw=2 .ds dw Monday -.if \n(dw=3 .ds dw Tuesday -.if \n(dw=4 .ds dw Wednesday -.if \n(dw=5 .ds dw Thursday -.if \n(dw=6 .ds dw Friday -.if \n(dw=7 .ds dw Saturday -.ds td \*(mo \n(dy, 19\n(yr -.\" *** PARAMETRIC INITIALIZATIONS *** -.rr x -.nr $v \n(.v00+\n(.sp-1/\n(.sp \" vs as percentage of ps for .sz request -.nr $V \n($v \" same for displays & footnotes -.nr hm 4v \" header margin -.nr tm 7v \" top margin -.nr bm 6v \" bottom margin -.nr fm 3v \" footer margin -.nr tf 3 \" title font: (real) Times Bold -.nr tp 10 \" title point size -.hy 14 -.nr bi 4m \" indent for blocks -.nr pi 5n \" indent for paragraphs -.nr pf 1 \" normal text font -.nr pp 10 \" normal text point size -.nr qi 4n \" indent for quotes -.nr qp -1 \" down one point -.nr ii 5n \" indent for .ip's and .np's -.nr $m 1 \" max number of columns -.nr $s 4n \" column separation -.nr sf 3 \" section font -- Times Bold -.nr sp 10 \" section title pointsize -.nr ss 12p \" section prespacing -.nr si 0 \" section indent -.\" *** OTHER INITIALIZATION *** -.\" GNU pic sets this register to 1, to indicate that \x should not be used. -.@R 0x -.ds { \v'-0.4m'\x'\\n(0x=0*-0.2m'\s-3 -.ds } \s0\v'0.4m' -.\" for compatibility with traditional -me -.\" (the first will work only in compatibility mode) -.ds [ \*{ -.ds ] \*} -.ds < \v'0.4m'\x'\\n(0x=0*0.2m'\s-3 -.ds > \s0\v'-0.4m' -.ds - \(em -.\" Avoid warnings from groff -ww. -.@S |0 -.@S |1 -.@S |2 -.@S |3 -.@S $H -.@S $0 -.@S $1 -.@S $2 -.@S $3 -.@S $4 -.@S $5 -.@S $6 -.@S $7 -.@S $8 -.@S $9 -.@S .. -.@R po\" \" simulated page offset -.@R $0\" \" section depth -.@R $i\" \" paragraph base indent -.@R $p\" \" numbered paragraph number -.@R $r\" \" ratio of vs to ps (may override $v) -.@R $R\" \" same for displays (may override $V) -.@R df\" \" display font: same as surrounding text -.@R so\" \" additional section title offset -.@R fu\" \" footnote undent -.@R bt\" \" block keep threshold -.@R *\" \" has \** been referenced? -.@R ?a\" \" pending floating keep at page top? -.@R ?b\" \" pending floating keep at page bottom? -.@R ?C\" \" at chapter header? -.@R ?e\" \" in equation? -.@R ?H\" \" suppress headers and footers next page? -.@R ?I\" \" has the header trap been sprung? -.@R ?n\" \" n1 mode? -.@R ?o\" \" footnote overflow? -.@R ?R\" \" renumbered chapter? -.@R ?s\" \" skip next page? -.@R ?T\" \" inside .TS H? -.@R ?W\" \" wide floating keep at page bottom? -.@R ?w\" \" wide floating keep at page top? -.nr fi 0.3i -.nr _o \n(.o -.nr $b 3 \" bold -.nr ps 0.35v -.if \n(ps<\n(.V .nr ps \n(.V -.nr bs \n(ps \" block pre/post spacing -.nr qs \n(ps \" quote pre/post spacing -.nr zs 1v \" float-block pre/postspacing -.nr xs 0.2v \" index prespacing -.nr xu 0.5i \" index undent -.nr fs 0.2v \" footnote prespacing -.nr es 0.5v \" equation pre/postspacing -.if \n(es<\n(.V .nr es \n(.V -.wh 0 @h \" set header -.nr $l \n(.lu \" line length -.nr _L \n(.lu \" line length of page -.nr $c 1 \" current column number -.nr $f 1 1 \" footnote number -.ds * \*{1\*}\k*\" \" footnote "name" -.nr $d 1 1 \" delayed text number -.ds # [1]\k#\" \" delayed text "name" -.nr _M 1 \" chapter mode is chapter -.ds lq \(lq\" \" left quote -.ds rq \(rq\" \" right quote -.em @z -.\" *** FOREIGN LETTERS AND SPECIAL CHARACTERS *** -.ds #h ((1u-(\\\\n(.fu%2u))*0.13m) -.ds #v 0.6m -.\" \" accents -.ds ' \k_\h'-(\\n(.wu*8/10-\*(#h)'\(aa\h'|\\n_u' -.ds ` \k_\h'-(\\n(.wu*7/10-\*(#h)'\(ga\h'|\\n_u' -.\" \" umlaut -.ds : \k_\h'-(\\n(.wu*8/10-\*(#h+0.1m)'\v'-\*(#v'\z.\h'0.2m'.\h'|\\n_u'\v'\*(#v' -.\" \" circumflex and tilde -.ds ^ \k_\h'-(\\n(.wu-\*(#h-0.05m)'^\h'|\\n_u' -.ds ~ \k_\h'-(\\n(.wu-\*(#h-0.05m)'~\h'|\\n_u' -.\" \" cedilla and czech -.ds , \k_\h'-(\\n(.wu)',\h'|\\n_u' -.ds v \k_\h'-(\\n(.wu*9/10-\*(#h)'\v'-\*(#v'\s-4v\s0\v'\*(#v'\h'|\\n_u' -.\" \" Norwegian A or angstrom -.ds o \k_\h'-(\\n(.wu+\w'\(de'u-\*(#h)/2u'\v'-0.4n'\z\(de\v'0.4n'\h'|\\n_u' -.\" 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