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Diffstat (limited to 'Master/texmf-dist/tex/plain/tugboat/tugboat.sty')
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diff --git a/Master/texmf-dist/tex/plain/tugboat/tugboat.sty b/Master/texmf-dist/tex/plain/tugboat/tugboat.sty new file mode 100644 index 00000000000..04cfc7237cb --- /dev/null +++ b/Master/texmf-dist/tex/plain/tugboat/tugboat.sty @@ -0,0 +1,2238 @@ +%% @texfile{ +%% filename = "tugboat.sty", +%% version = "1.14c", +%% date = "14 October 1996", +%% time = "14:26:08", +%% filetype = "Plain TeX macros for TUGboat", +%% copyright = "Copyright (C) TeX Users Group. +%% Copying of this file is authorized only if either: +%% (1) you make absolutely no changes to your copy, OR +%% (2) if you do make changes, you first rename it to some +%% other name.", +%% author = "TeX Users Group", +%% address = "TeX Users Group, +%% 1850 Union Street, \#1637, +%% San Francisco, CA 94123, +%% USA", +%% telephone = "415-982-8449", +%% FAX = "415-982-8559", +%% email = "Internet: TUGboat@ams.org", +%% codetable = "ISO/ASCII", +%% checksum = "2238 6284 69130", +%% keywords = "tex users group, tugboat, plain tex", +%% supported = "yes", +%% abstract = "This file contains the plain-based macros +%% for preparation of TUGboat, the Communications +%% of the TeX Users Group.", +%% docstring = "The checksum field above contains a CRC-16 +%% checksum as the first value, followed by the +%% equivalent of the standard UNIX wc (word +%% count) utility output of lines, words, and +%% characters. This is produced by Robert +%% Solovay's checksum utility.", +%% } +%% ********************************************************* +%% +%% TeXing with this file also requires the following files: +%% TUGBOAT.CMN (version 1.08+) +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% TUGBOAT.STY + +\def\thistubstyle{plain} +\def\fileversion{v1.14c} +\def\filedate{14 October 1996} + +% general items + +\def\makeatletter{\catcode`\@=11 } +\makeatletter % used, as in PLAIN, in protected control sequences + +% stop reading this file if it's been loaded already +\ifx\tugstyloaded@\thistubstyle\makeatother\initializearticle + \endinput\else\let\tugstyloaded@\thistubstyle\fi + +\message{File `TUGBOAT.STY' \fileversion \space\space <\filedate>} + +\input tugboat.cmn % macros common to tugboat.sty and + % ltugboat.sty (latex style file) + + +% some things with the same names as in, or reiterated from, AMS-TeX + +\def\document{} % override an AMS-TeX convention + +\output{\output@} + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% Directory. +% +% ** fonts +% ** page dimensions +% ** headers/footers +% ** page adjustment +% ** output +% ** general mechanism for tags +% ** titles, authors, addresses +% ** heads +% ** text and subtext +% ** lists +% ** verbatim +% ** figures +% ** utilities +% ** initialization + + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** fonts ***** +% + + +% Struts give ascenders and descenders to assist in baseline alignment +% (e.g. of adjoining vertical boxes); useful only with text fonts. +% +% \strut is defined in PLAIN . The structure of \strutt is equivalent. + +\newbox\struttbox +\def\strutt{\relax\ifmmode\copy\struttbox\else\unhcopy\struttbox\fi} + +% Struts are given the following dimensions for use in TUGboat: +% +% \strut = height/depth of parenthesis in current font +% (not the same as PLAIN) +% \strutt height + depth = \normalbaselineskip, +% height = same as \strut +% (equivalent to PLAIN \strut ) + + +% The fonts below are sufficient for most ordinary TUGboat production. +% Additional titling fonts are defined elsewhere, and occasionally an +% extra font will be needed for a particular item (e.g. the device +% charts) and defined in that file. + +% All PLAIN CM fonts. + +\font\tenrm=cmr10 +\font\ninerm=cmr9 +\font\eightrm=cmr8 +\font\sevenrm=cmr7 +\font\sixrm=cmr6 +\font\fiverm=cmr5 + +\font\teni=cmmi10 \skewchar\teni='177 +\font\ninei=cmmi9 \skewchar\ninei='177 +\font\eighti=cmmi8 \skewchar\eighti='177 +\font\seveni=cmmi7 \skewchar\seveni='177 +\font\sixi=cmmi6 \skewchar\sixi='177 +\font\fivei=cmmi5 \skewchar\fivei='177 + +\font\tensy=cmsy10 \skewchar\tensy='60 +\font\ninesy=cmsy9 \skewchar\ninesy='60 +\font\eightsy=cmsy8 \skewchar\eightsy='60 +\font\sevensy=cmsy7 \skewchar\sevensy='60 +\font\sixsy=cmsy6 \skewchar\sixsy='60 +\font\fivesy=cmsy5 \skewchar\fivesy='60 + +\font\tenex=cmex10 + +\font\tenbf=cmbx10 +\font\ninebf=cmbx9 +\font\eightbf=cmbx8 +\font\sevenbf=cmbx7 +\font\sixbf=cmbx6 +\font\fivebf=cmbx5 + +\font\tentt=cmtt10 +\font\ninett=cmtt9 +\font\eighttt=cmtt8 + +\font\tensl=cmsl10 +\font\ninesl=cmsl9 +\font\eightsl=cmsl8 +\font\sevensl=cmti7 % Would use cmsl7 if it were standard. + % Currently needed only for \def of \LaTeX + +\font\tenit=cmti10 +\font\nineit=cmti9 +\font\eightit=cmti8 +\font\sevenit=cmti7 + +\font\tenuit=cmu10 +\font\tenbfsl=cmbxsl10 + +\font\tensmc=cmcsc10 +\font\ninesmc=cmcsc10 % redefine if cmcsc9 and/or cmcsc8 exist +\font\eightsmc=cmcsc10 + +\font\tentex=cmtex10 % for ASCII character set + +\def\mit{\fam\@ne} % from plain +\def\cal{\fam\tw@} % from plain +\def\sy{\cal} + +% cmss fonts are not needed all the time. Permit as-needed access. +\def\LoadSansFonts{% + \global\font\twelvess=cmss10 scaled \magstep1 + \global\font\tenss=cmss10 + \global\font\niness=cmss9 + \global\font\eightss=cmss8 + \addto\tenpoint{\def\ssf{\tenss}} + \addto\ninepoint{\def\ssf{\niness}} + \addto\eightpoint{\def\ssf{\eightss}} + \gdef\LoadSansFonts{}} + +% TUGboat section heads +\font \seventeenssb=cmssbx10 scaled \magstep3 +\font \twelvessb=cmssbx10 scaled \magstep1 + +\newfam\sectitlefam +\textfont\sectitlefam=\seventeenssb \scriptfont\sectitlefam=\twelvessb + +% \stbaselineskip set in tugboat.com +\def\sectitlefont{% + \fam\sectitlefam \seventeenssb \baselineskip=\stbaselineskip } + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** Definitions of \tenpoint, \ninepoint, etc. ***** +% + +% Following is a facility for adding commands to \tenpoint, \ninepoint +% and \eightpoint. \LoadSansFonts uses this technique above. +% Also used to add math families, as with: +% \addto\tenpoint{\textfont\frakfam...} +% to add a Fraktur family. +% +\def\addto#1#2{% + \csname @addsto\string#1\endcsname= + \expandafter{\the\csname @addsto\string#1\endcsname#2}} +\def\@additionsto#1{\expandafter\the\csname @addsto\string#1\endcsname} +\expandafter\newtoks\csname @addsto\string\tenpoint\endcsname +\expandafter\newtoks\csname @addsto\string\ninepoint\endcsname +\expandafter\newtoks\csname @addsto\string\eightpoint\endcsname + + +\newskip\ttglue +\def\setttglue{% + \edef\@thefont{\the\font}% to restore this font after the setting + \tt \ttglue=.5em plus .25em minus .15em + \@thefont} + +% We assume that \scriptscriptfonts remain the same throughout +\scriptscriptfont\z@=\fiverm +\scriptscriptfont\@ne=\fivei +\scriptscriptfont\tw@=\fivesy +\scriptscriptfont\thr@@=\tenex +\scriptscriptfont\bffam=\sixbf + +\newdimen\normaltenpointstretch \normaltenpointstretch=1.6667pt +\def\NormalTenPointSpacing{\AdjustNormalSpacing\tenpoint{}} +\def\StretchyTenPointSpacing{\AdjustNormalSpacing\tenpoint{2.4}} + +\def\tenpoint{% + \normalbaselineskip=12pt + \abovedisplayskip=3pt plus 3pt minus 1pt + \belowdisplayskip=3pt plus 3pt minus 1pt + \abovedisplayshortskip=0pt plus 3pt + \belowdisplayshortskip=1pt plus 3pt minus 1pt + \def\rm{\fam\z@\tenrm}% + \textfont\z@=\tenrm \scriptfont\z@=\sevenrm + \def\oldstyle{\fam\@ne\teni}% + \textfont\@ne=\teni \scriptfont\@ne=\seveni + \textfont\tw@=\tensy \scriptfont\tw@=\sevensy + \textfont\thr@@=\tenex \scriptfont\thr@@=\tenex + \def\it{\fam\itfam\tenit}% + \textfont\itfam=\tenit \scriptfont\itfam=\sevenit + \def\sl{\fam\slfam\tensl}% + \textfont\slfam=\tensl \scriptfont\slfam=\sevensl + \def\bf{\def\sl{\tenbfsl}\fam\bffam\tenbf}% + \textfont\bffam=\tenbf \scriptfont\bffam=\eightbf + \def\smc{\tensmc}% + \def\SMC{\ninerm}% + \def\tt{\tentt}% + \setttglue + \def\upright{\tenuit}% + \setbox\strutbox=\hbox{\vrule height7.5pt depth2.5pt width\z@}% + \setbox\struttbox=\hbox{\vrule height8.5pt depth3.5pt width\z@}% + \normalbaselines \rm + \@additionsto\tenpoint} + +\tenpoint % initialize -- default font + + +\newdimen\normalninepointstretch \normalninepointstretch=1.5pt +\def\NormalNinePointSpacing{\AdjustNormalSpacing\ninepoint{}} +\def\StretchyNinePointSpacing{\AdjustNormalSpacing\ninepoint{2.4}} + +\def\ninepoint{\normalbaselineskip=11pt + \abovedisplayskip=2.5pt plus 2.5pt minus 1pt + \belowdisplayskip=2.5pt plus 2.5pt minus 1pt + \abovedisplayshortskip=0pt plus 2.5pt + \belowdisplayshortskip=1pt plus 2.5pt minus 1pt + \def\rm{\fam\z@\ninerm}% + \textfont\z@=\ninerm \scriptfont\z@=\sevenrm + \def\oldstyle{\fam\@ne\ninei}% + \textfont\@ne=\ninei \scriptfont\@ne=\seveni + \textfont\tw@=\ninesy \scriptfont\tw@=\sevensy + \def\it{\fam\itfam\nineit}% + \textfont\itfam=\nineit + \def\sl{\fam\slfam\ninesl}% + \textfont\slfam=\ninesl + \def\bf{\fam\bffam\ninebf}% + \textfont\bffam=\ninebf \scriptfont\bffam=\sevenbf + \def\smc{\ninesmc}% + \def\SMC{\eightrm}% + \def\tt{\ninett}% + \setttglue + \setbox\strutbox=\hbox{\vrule height 6.75pt depth 2.25pt width\z@}% + \setbox\struttbox=\hbox{\vrule height 7.75pt depth 3.25pt width\z@}% + \normalbaselines \rm + \@additionsto\ninepoint } + +% The following setting can be used when baselineskip = 10pt +% \setbox\struttbox=\hbox{\vrule height 7.25pt depth 2.75pt width\z@}% + + +\newdimen\normaleightpointstretch \normaleightpointstretch=1.333pt +\def\NormalEightPointSpacing{\AdjustNormalSpacing\eightpoint{}} +\def\StretchyEightPointSpacing{\AdjustNormalSpacing\eightpoint{2.25}} + +\def\eightpoint{\normalbaselineskip=10pt + \abovedisplayskip=2pt plus 2pt minus 1pt + \belowdisplayskip=2pt plus 2pt minus 1pt + \abovedisplayshortskip=0pt plus 2pt + \belowdisplayshortskip=1pt plus 2pt minus 1pt + \def\rm{\fam\z@\eightrm}% + \textfont\z@=\eightrm \scriptfont\z@=\sixrm + \def\oldstyle{\fam\@ne\eighti}% + \textfont\@ne=\eighti \scriptfont\@ne=\sixi + \textfont\tw@=\eightsy \scriptfont\tw@=\sixsy +% \textfont\thr@@=\eightex \scriptfont\thr@@=\eightex + \def\it{\fam\itfam\eightit}% + \textfont\itfam=\eightit + \def\sl{\fam\slfam\eightsl}% + \textfont\slfam=\eightsl + \def\bf{\fam\bffam\eightbf}% + \textfont\bffam=\eightbf \scriptfont\bffam=\sixbf + \def\smc{\eightsmc}% + \def\tt{\eighttt}% + \setttglue + \setbox\strutbox=\hbox{\vrule height 6pt depth 2pt width\z@}% + \setbox\struttbox=\hbox{\vrule height 7pt depth 3pt width\z@}% + \normalbaselines \rm + \@additionsto\eightpoint } + +% The 8pt cap/small cap font is not loaded. See a corresponding remark +% above for the 9pt csc font. + +% this is equivalent to baselineskip = 9pt +% \setbox\struttbox=\hbox{\vrule height 6.5pt depth 2.5pt width\z@}% + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% Following will allow text to be a bit stretchier than the built-in +% setting; TeXbook, page 433, 355 + +\def\@setstretch{\fontdimen3\the\font=} +\def\AdjustNormalSpacing#1#2{% #1=pointsize, #2=adjustment factor + {\T@stDimen=#2\csname normal\expandafter\gobble\string#1stretch\endcsname + #1% + \rm\@setstretch\T@stDimen + \it\@setstretch\T@stDimen + \bf\@setstretch\T@stDimen + }} + + + +% Anticipated changes to this font handling scheme: +% +% Dynamic loading of fonts, probably in groups according to size +% Removal of \rm, \bf, etc., from \*point expansions, replacement +% by generic \rm, \bf, etc. definitions +% Mechanism for switching neatly between serif and sans-serif + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** page dimensions ***** +% + + +% vertical dimensions + +\newdimen\trimlgt \trimlgt=11in % 10.5in (vols 7-9) +\newdimen\headmargin \headmargin=3.5pc % 2.5pc (vols 7-9) +\newdimen\pagelgt +\newdimen\rheadlgt \rheadlgt=2.5pc % + headmargin = 6pc = 1in +\newdimen\toplgt \toplgt=\z@ +\newdimen\normalcollgt \normalcollgt=54pc % 52pc for 5#2 +\newdimen\collgt \collgt=\normalcollgt +\newdimen\Collgt +\maxdepth=2pt +\newdimen\botlgt \botlgt=\z@ +\newdimen\rfootlgt \rfootlgt=2pc + +\newif\ifThisIsFirstPage \ThisIsFirstPagefalse + +\def\resetpagelgt{% + \pagelgt=\collgt \Collgt=\collgt + \advance\pagelgt by \rheadlgt + \ifThisIsFirstPage \advance\Collgt by-\toplgt + \advance\Collgt by-\botlgt \fi + \advance\pagelgt by \maxdepth + \global\advance\pagelgt by \rfootlgt + \global\vsize=\Collgt } + +\def\resetfpagelgt{% + \global\ThisIsFirstPagetrue + \resetpagelgt } % exclude special first page material + +\resetpagelgt +\raggedbottom + +% horizontal dimensions + +\newdimen\colwd +\newdimen\intercolwd \intercolwd=\z@ +\newdimen\pagewd \pagewd=39pc +\newdimen\trimwd \trimwd=\pagewd +\newdimen\oddleftindent \oddleftindent\z@ +\newdimen\evenleftindent \evenleftindent\z@ + +\def\onecol{\colwd=\pagewd \OneCol } + +\newdimen\onenarrowcolwd \onenarrowcolwd=30pc +\def\onenarrow{\colwd=\onenarrowcolwd \OneCol } + +% before 5#2, `narrow' was 34pc +\newdimen\onemediumcolwd \onemediumcolwd=34pc +\def\onemedium{\colwd=\onemediumcolwd \OneCol } + +\newdimen\twocolcolwd \twocolcolwd=18.75pc +\def\twocol{\colwd=\twocolcolwd \intercolwd=1.5pc \TwoCol } + +\newdimen\threecolcolwd \threecolcolwd=12pc +\def\threecol{\colwd=\threecolcolwd \intercolwd=1.5pc \ThreeCol } + +\def\CenterOneCol{% + \oddleftindent\pagewd + \advance\oddleftindent -\colwd + \divide\oddleftindent\tw@ + \evenleftindent\oddleftindent + \coloffset\ifodd\pageno\oddleftindent\else\evenleftindent\fi + } + +\def\OneCol{\hsize=\colwd \CenterOneCol \numcols=1 \resetmaxcols} +\def\ZeroLeftIndents{\oddleftindent\z@ \evenleftindent\z@ \coloffset\z@ } +\def\TwoCol{\hsize=\colwd \numcols=2 \resetmaxcols \ZeroLeftIndents} +\def\ThreeCol{\hsize=\colwd \numcols=3 \resetmaxcols \ZeroLeftIndents} + +\def\resetmaxcols{% + \ifnum\numcols>\maxcols + \ifOverlaysinTeX \maxcols=\numcols + \else \immediate\write\sixt@@n{% + The new setting of \string\numcols is greater than \string\maxcols.^^J + Either allow overlays in TeX or increase \string\maxcols.}\fi + \fi} + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** headers/footers ***** +% + + +\def\pagenoprefix{} + +\def\rtitlex{\def\tubfont{\tenpoint\rm}\TUB, \volx } +\def\rtitle{% + \hbox to \pagewd{% + \tenrm + \makestrut[10pt;\z@]% + \ifodd\pageno \rtitlex\qquad\midrtitle\hfil\pagenoprefix\number\pageno + \else \pagenoprefix\number\pageno\hfil\midrtitle\qquad\rtitlex \fi + }% + } + +\def\runhead{\vbox to \rheadlgt{\rtitle \vfil }} + +\def\rfoot{% + \hbox to \pagewd{% + \tenrm + \makestrut[\z@;0.5pc]% + \midrtitle\hfil\midrtitle + }% + } + +\def\runfoot{\vbox to \rfootlgt{\vfil \rfoot }} + +% Macros to produce extra running heads for stripping onto pages +% received as camera copy. Format must be preset to \OneCol, and +% start on a new page. + +% Generate 5 (4 + normal running head) per page. + +\def\DrawT@pLines{% + \vskip\topskip + \ulap{% + \line{% + \raise 1ex\rlap{\leaders\hrule\hskip\pagewd}% + \leaders\hrule\hfill + }} + \medskip} + +\def\r@nhead{% + \vbox to .23\vsize{% + \basezero \hsize=\pagewd \vfil + \topregister \vskip\headmargin \runhead \DrawT@pLines } + \medskip + \advancepageno } + +\def\nextrunner{% + \ifnum\T@stCount>0 + \ifnum\T@stCount>5 \TestCount=5 \else\TestCount=\T@stCount \fi + \advance\T@stCount by-\TestCount + \DrawT@pLines % always one at top of page + \loop\ifnum\TestCount>1 \r@nhead \advance\TestCount by\m@ne \repeat + \newpage + \def\@next{\nextrunner}% + \else \def\@next{}% + \fi + \@next } + +% Use \ExtraRunheads to generate running heads for stripping (e.g. for +% author-supplied camera-ready copy). E.g., ``\ExtraRunheads 12, {}.'' will +% generate 12 TUGboat running heads, up to 5 per page, starting with +% the current page number. + +\def\ExtraRunheads #1, #2.{% + \T@stCount=#1 + \gdef\pageprefix{#2}% % as in A-10 for appendices; not used just now + \nextrunner } + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** insertions ***** +% + + +\newif\if@floatable \@floatabletrue % sometimes we don't want +\def\nofloat{\@floatablefalse} % midinsertions to float + +% redefine \@ins to avoid the \par of PLAIN +\def\@ins{\begingroup\setbox\z@\vbox\bgroup} + +\newinsert\botins +\newif\ifp@ge \newif\if@mid \newif\if@bot +\def\topinsert{\@midfalse\p@gefalse\@botfalse\@ins} +\def\botinsert{\@midfalse\p@gefalse\@bottrue\@ins} +\def\midinsert{\@midtrue\@botfalse\@ins} +\def\pageinsert{\@midfalse\@botfalse\p@getrue\@ins} +\skip\botins=\z@skip +\count\botins=1000 +\dimen\botins=\maxdimen +\def\endinsert{\egroup % finish the \vbox + \gdef\@next{}% + \if@mid \dimen@\ht\z@ \advance\dimen@\dp\z@ + \advance\dimen@12\p@ \advance\dimen@\pagetotal + \if@floatable + \ifdim\dimen@>\pagegoal\@midfalse\@botfalse\p@gefalse\fi\fi + \fi + \if@mid + \vskip\abovedisplayskip + \box\z@ + \vskip\belowdisplayskip + \gdef\@next{\@asifbelowdisplay}% + \else\insert\if@bot\botins\else\topins\fi + {\penalty100 % floating insertion + \if@bot\medskip\nobreak\fi + \splittopskip\z@skip + \splitmaxdepth\maxdimen \floatingpenalty\z@ + \ifp@ge \dimen@\dp\z@ + \vbox to\vsize{\unvbox\z@\kern-\dimen@}% depth is zero + \else \box\z@\fi + \if@bot\else\medskip\fi + }% + \fi\endgroup\@next} + +% Footnotes are mainly supported by PLAIN format, with these +% exceptions. + +\skip\footins=10pt +\def\footnoterule{\kern-5pt + \hrule width 5pc \kern 4.6pt } % the \hrule is .4pt high + +\newif\ifDelayFirstPar \DelayFirstParfalse +\def\vfootnote#1{\ifFirstPar \DelayFirstPartrue \fi + \insert\footins\bgroup + \interlinepenalty\interfootnotelinepenalty + \splittopskip\ht\strutbox % top baseline for broken footnotes + \splitmaxdepth\dp\strutbox \floatingpenalty\@MM + \leftskip\z@skip \rightskip\z@skip \spaceskip\z@skip \xspaceskip\z@skip + \rm \parindent=\normalparindent % always indent footnotes; added for TUGboat + \textindent{#1}\makestrut[10pt;\z@]\futurelet\next\fo@t} +\def\@foot{\strut\egroup + \ifDelayFirstPar \SetupFirstPar \global\DelayFirstParfalse \fi } +\newif\ifFirstPar \FirstParfalse +\def\SetupFirstPar{\global\parindent=\z@ \global\FirstPartrue } + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** output ***** +% + + +% Reorganize \pagecontents from PLAIN to put footnotes at very +% bottom of page, even if \raggedbottom. Also add bottom insertions. + +\def\pagecontents{% + \ifvoid\topins\else\unvbox\topins\fi + \dimen@=\dp\@cclv \unvbox\@cclv % open up \box255 + \ifr@ggedbottom \kern-\dimen@ \vfil \fi + \ifvoid\footins\else % footnote info is present + \vskip\skip\footins + \footnoterule + \unvbox\footins\fi + \ifvoid\botins\else + \vskip\skip\botins + \unvbox\botins\fi } + + +% Trim (registration) marks may or may not be placed around the pages; +% Overlaying may or may not be done within TeX (as opposed +% to the device driver). + +\newif\ifTrimmarks \Trimmarksfalse +\newif\ifOverlaysinTeX \OverlaysinTeXtrue + + +% All columns containing data are formatted by \midpage. Trim marks +% are put on all columns, but running heads only on the last column +% (i.e. column number = \numcols) + +\def\midpage#1{% + \vbox{ + \basezero + \hrule height\z@ depth\z@ width\p@ + \ifTrimmarks + \vskip-1in % default offset for laser printers + % this puts top trim at edge of paper + \vbox to \trimlgt \bgroup + \topregister + \vskip \headmargin + \else + \vskip-\rheadlgt % this puts runhead above default offset + \fi + \vbox to \pagelgt{ + \ifnum\xcol=\numcols \runhead \else \vbox to \rheadlgt{}\fi + \ifThisIsFirstPage \firsthead \fi + \hbox to \pagewd{#1} % \vsize applied in \pagebody + \ifThisIsFirstPage \firstfoot \fi + \vfil % if no depth, avoid underfull box + \ifnum\xcol=\numcols \runfoot \else \vbox to \rfootlgt{}\fi + } + \ifTrimmarks \vfill \botregister \egroup \fi + }} + +% The production version includes trim marks, which are required +% on photographic paper, but are unsuitable for laser printer output +% (because they land at the edges of the page). For multiple +% column output, allowance is made for column overlays either +% within TeX or by the driver. The default is to have all +% overlays done within TeX, but large pages or matters of efficiency +% may dictate that driver-overlay is more appropriate. + +% When the overlaying is done within TeX, the .dvi contains just +% one page for each page to be printed. However, in the case +% that a driver is to do the overlaying we must anticipate that +% it will not be smart enough to properly overlay different numbers +% of .dvi pages for different printed pages (e.g. in the case that +% one job has both single- and double-column layout). Thus, for +% each printed page, TeX constructs a constant number (=\maxcols) +% of .dvi pages. Columns 1 through and including \numcols will +% be usual .dvi pages containing information for the typeset columns. +% Upon reaching column number \numcols, TeX will `fill out' the +% printed page with empty columns to \maxcols. + + +% set up auxiliary `page numbers' +% \pageno = \count0 as used in PLAIN + +% \xcol is the column number within a page; ranges from 1 to \maxcols +\countdef\xcol=1 \xcol=1 + +% \spoolno is the ordinal number of `.dvi' pages (i.e. the number +% of \shipouts performed) +\countdef\spoolno=2 \spoolno=0 + +\def\newcol{\endgraf\vfill\eject} + +\def\newpage{% + \vfill\eject + \loop + \ifnum\xcol>1 + {\leavevmode\endgraf\vfill\eject} % \xcol is advanced in the output routine + \repeat + } + +\newcount\numcols % `real' number of columns + +\newcount\@maxcolsofar % internal counter for box allocation +\@maxcolsofar=0 + +\newcount\maxcols % job-wide maximum number of columns +\maxcols=2 + + + % save the column or ship it out +\def\@saveorship{% + \ifOverlaysinTeX + \ifnum\xcol>\@maxcolsofar % if we need another column box allocated + \global\advance\@maxcolsofar\@ne + \newboxcs{column\number\xcol}% + \fi + \global\setboxcs{column\number\xcol}% + \else + \global\advance\spoolno\@ne + \shipout + \fi + } + +% horizontal offset of column from left edge of page +\newdimen\coloffset \coloffset\z@ +\def\incrcoloffset{% + \global\advance\coloffset\colwd + \global\advance\coloffset\intercolwd + } + +\def\output@{% + \@saveorship\midpage{\kern\coloffset\pagebody\hfil} + \incrcoloffset + \ifnum\xcol=\numcols % if at `real' last column, fill out page with + \loop % empty columns + \ifnum\xcol<\maxcols + \global\advance\xcol\@ne + \@saveorship\midpage{\vbox to \collgt{}\hfil} + \repeat + \fi + \ifnum\xcol=\maxcols % put page together if TeX is overlaying + \ifOverlaysinTeX + \global\advance\spoolno\@ne + \shipout\hbox{% + \xcol=1 + \loop \rlap{\boxcs{column\number\xcol}}% + \ifnum\xcol<\maxcols + \global\advance\xcol\@ne + \repeat + \hbox to \pagewd{}% + }% + \fi + \D@EndPage % possible shortening of next page + \global\coloffset\ifodd\pageno\oddleftindent\else\evenleftindent\fi + \global\xcol=1 + \else + \global\advance\xcol\@ne + \fi + \ExecuteNextDC % possible `Delayed Command' + } + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** page adjustment ***** +% + + +% In the absence of automatic column-balancing, provide a mechanism +% for manually shortening a specified page. + +\newif\ifSh@rtPage \Sh@rtPagefalse +\newif\ifSh@rtPagePending \Sh@rtPagePendingfalse +\newcount\Sh@rtPageNo +\newdimen\Sh@rtPageLgt + +\def\@to{to} \def\@by{by} +% #1 = to/by; #2 = \dimen; #3 = <dimen>; #4 = * of Shorten*Page +\def\@toby#1#2#3#4{% + \def\@tb{#1}% + \ifx \@tb\@to \global #2=#3 + \else \ifx \@tb\@by \T@stDimen=#3 % accommodate negative #3 + #2=\normalcollgt \global\advance #2 by -\T@stDimen + \else \errmessage{#1 is invalid syntax; \string\Shorten#4Page + requires "to" or "by"}\fi + \fi } + +\def\@plusno#1#2;{% + \if +#1\T@stCount=\pageno \advance\T@stCount by #2 + \else \T@stCount=#1#2 \fi } + +\def\ShortenPage #1 #2 #3. {% + \global\Sh@rtPagePendingtrue + \@plusno#1;\global\Sh@rtPageNo=\T@stCount + \@toby{#2}{\Sh@rtPageLgt}{#3}{}} +\def\ShortenThisPage #1 #2. {% + \global\Sh@rtPagetrue + \@toby{#1}{\vsize}{#2}{This}} + +% Two cases: 0 = last page was nonstandard; reset \vsize +% 1 = do not reset \vsize: okay or length already reset +\def\D@EndPage{% + \global\advancepageno + \T@stCount=1 + \ifThisIsFirstPage \T@stCount=0 \global\ThisIsFirstPagefalse + \resetfirsthead \resetfirstfoot + \global\collgt=\normalcollgt \fi + \ifSh@rtPage \T@stCount=0 \global\Sh@rtPagefalse \fi + \ifSh@rtPagePending + \ifnum\pageno = \Sh@rtPageNo \T@stCount=1 + \global\vsize=\Sh@rtPageLgt + \global\Sh@rtPagePendingfalse + \global\Sh@rtPagetrue \fi + \fi + \ifcase \T@stCount \resetpagelgt \fi } + +% Add more powerful means of adjusting pages by keeping a list of +% commands to be executed prior to making up the next page. This +% technique will be expanded in the next version of the output +% routine. + +% "\DelayedCommand <page number> <column number> <command>\endCommand" +% places the token list <command> at the end of a list of "things to do". +% At the end of every column, the output routine checks this list to +% see whether the head of the list should be "executed" prior to +% building the next column. If so, the execution is performed. +% Right now, items must be placed in the execution list in order, +% and all items for a given column must be combined into a single +% token list. + +% Natural applications are double column figures and column size +% adjustments. E.g. +% \DelayedCommand +5 1 \global\advance\vsize by 2\baselineskip\endCommand +% will increase the \vsize of the first column of the page 5 pages from +% "now" by 2 baselines. To pull the \vsize back to normal would require +% another use of \DelayedCommand. Double column figures can be achieved +% with insertions called by \DelayedCommand. + +% Right now the technique is messy, but it can be used by those who know +% how it's implemented and know its limitations. + +\newtoks\@DelayedCommandList + +\def\DelayedCommand #1 #2 #3\endCommand{% + \@plusno#1;% + \edef\@temp{\the\@DelayedCommandList<\number\T@stCount>}% + \global\@DelayedCommandList=\expandafter{\@temp<#2>#3\endCommand}% + } + +\def\@FindNextDCPoint <#1><#2>#3\endList{% + \def\DCpage{#1}\def\DCcolumn{#2}} + +\def\FindNextDCPoint{% + \edef\@temp{\the\@DelayedCommandList}% + \ifx\@temp\empty \def\DCpage{\@M}\def\DCcolumn{0}% + \else + \edef\@form{% + \noexpand\@FindNextDCPoint\the\@DelayedCommandList\noexpand\endList}% + \@form + \fi} + +\def\@ExecuteNextDC <#1><#2>#3\endCommand#4\endList{% + \global\@DelayedCommandList={#4}% + #3} + +\def\ExecuteNextDC{% + \FindNextDCPoint + \ifnum \pageno=\DCpage \ifnum\xcol=\DCcolumn + \edef\@form{% + \noexpand\@ExecuteNextDC\the\@DelayedCommandList\noexpand\endList}% + \@form + \fi \fi} + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** general mechanism for tags ***** +% + +% Upon sensing an opening tag (call it `\foo' here), the following process +% is set in motion: +% 1. \begingroup (so definitions and settings are localized); +% 2. the default situation for \foo is set up; +% 3. if appropriate, an \everyfoo list is read (this allows one +% to override the TUGboat.sty factory defaults); +% 4. optional commands are read. This involves looking ahead for +% a `[' and `normalizing' the optional environment so that +% backslashes and braces are interpreted as their standard selves. +% After the options are read, the `\',`{', and `}' are restored +% to their status appropriate to \foo; +% 5. the \@beginfoo macro is executed. This +% may involve branching dependent upon flags set by options. It may +% also be a place where spaces and carriage-returns are activated. +% 6. the `argument' to \foo is read and stored or processed on +% the fly (the method employed is generally fixed for each tag). +% The argument may be delimited by *...* (called the `short-form' +% here), or up to ...\endfoo (called the `long-form'). +% 7. a cleanup macro is executed which also ends the current group. +% This may do all the work if an argument has been read and stored. + +% Checking ahead. +% Often we check ahead to determine the next course of action. +% \@checknexttoken is used to check for optional commands, to check for the +% short-form argument-delimiter, and to ignore characters in certain +% situations. The macro is just a check; applications must do whatever +% is appropriate with the ensuing token. + +% \@checknexttoken checks the next token against argument #1. If the +% two are the same, #2 is executed, otherwise #3. The comparison is +% done with \ifx. Since we check ahead with \futurelet, the first +% argument is stored with \let as well. To include the case +% where #1 may be a space, we have to go through a small contortion +% to \let\@basetoken= that space. + +% At times, the \@nexttoken will be \outer and this will prevent its +% being incorporated in the definition of \@next below. For this reason, +% we store `\ifx\@basetoken\@nexttoken' away in a definition at a time +% when \@nexttoken is undefined and won't cause a problem. + +\def\if@baseis@next{\ifx\@basetoken\@nexttoken} + +\long\def\@checknexttoken #1#2#3{% + \futurelet\@basetoken\iffalse#1\fi + \long\def\@next{% +% \ifx \@basetoken\@nexttoken + \if@baseis@next + \long\def\@@next{#2}% + \else\long\def\@@next{#3}\fi + \@@next}% + \futurelet\@nexttoken\@next} + +% Eliminating characters from input. +% The following macros check ahead to see whether the next token is a +% token to be parsed from the input stream. \@ignoreall keeps +% checking to eliminate all such characters, whereas \@ignoreone drops +% at most one. Argument #2 is executed after characters are eliminated. + +% The token is removed by defining a control sequence whose +% contextual form includes the token. + + % execute #2 after ignoring (possibly) one occurrence of #1 +\long\def\@ignoreone#1#2{% + \def\@ignoreform#1{#2}% + \@checknexttoken{#1}{\@ignoreform}{#2}% + } + + % execute #2 after ignoring all occurrences of #1 +\long\def\@ignoreall#1#2{% + \def\@ignoreform#1{\@ignoretest}% + \def\@ignoretest{\@checknexttoken{#1}{\@ignoreform}{#2}}% + \@ignoretest + } + +% Particularly useful ignorances. + + % execute #1 after ignoring spaces +\def\DeleteOptionalSpaces#1{% + \@ignoreall{ }{#1}% + } + % execute #1 after ignoring spaces and \pars +\def\DeleteOptionalSpacesandPars#1{% + \@ignoreall{ }{\@ignoreall{\par}{#1}}% + } + + +% Checking and reading options. +% To check for the next optional argument, the macros must look +% ahead to the next character. If the next character is a `[', +% the option-reading mechanism is invoked. This check may be suppressed if +% the user has executed the \lastoption option. If \@lastoption is +% "true" or if the [ is NOT next, the macro goes on to reading any +% arguments and executing appropriately. + +\def\@checkoptions{% + \if@lastoption + \def\@next{\@executetoend}% + \else + \def\@next{\@checknexttoken {[}{\@readoptions}{\@executetoend}}% + \fi + \@next + } + +% Default "options" on start-up. Unless over-ridden, the situation +% will be: +% 1. there may be another option to check (i.e. \@lastoptionfalse); +% 2. it will be necessary to read the input file to determine the +% method of marking arguments (i.e. \@longformfalse); +% 3. arguments will be handled on the fly (i.e. \@savingargumentfalse); +% 4. the long-form ending delimiter will be \end... (where ... is +% the tag with which we're currently operating. + +\newif\if@lastoption \@lastoptionfalse +\def\lastoption{\@lastoptiontrue} + +\newif\if@longform \@longformfalse +\def\longform{\@longformtrue} + +\newif\if@savingargument \@savingargumentfalse + +\newtoks\enddelim + +\def\@defaultoptions{% + \@lastoptionfalse + \@longformfalse + \@savingargumentfalse + \enddelim=\expandafter{\csname end\CurrentTag\endcsname}% + \let\@long\empty + } + +% To read an optional command, \catcodes of \ { } are restored to their plain +% values, and the [...] form is parsed out by \@@readoptions. The argument +% to \@@readoptions is then executed, the 3 specials are restored and +% the we check again for [ after deleting spaces. One might, alternatively, +% parse out the initial `[' and activate the `]' to end options, but +% this would make it awkward to place options within other macros (since +% the `]' would have to be \catcoded properly for the definition). + +\def\@readoptions{% + \savecat\\\makeescape\\% + \savecat\{\makebgroup\{% + \savecat\}\makeegroup\}% + \@@readoptions} + +\def\@@readoptions[#1]{% + #1% + \restorecat\\\restorecat\{\restorecat\}% + \DeleteOptionalSpaces{\@checkoptions}% + } + + +% Short Form Tagging. +% We specify a character (*) to be used as a begin/end delimiter +% for the argument to most tags. This code could be copied and +% altered a bit to use another character. + +% The character will be encountered as either type `other' or as +% an `active' character. + +\newtoks\@otherSFD +\@otherSFD={*} +\let\@SFD=* % used in \@checknexttoken + +\newtoks\@activeSFD +{\makeactive\* + \global\@activeSFD={*}% +} + +\let\@plainast=\ast +\def\ast{\ifmmode\@plainast\else *\fi} + + +% Reading to the end-tag. +% Macros may just do their business after options have been +% read. In this case, there is no end-tag to worry about. +% Otherwise, the macros either read to the "long-form" of end-tag +% (e.g. \endtitle or \endauthor) or to the short-form (assumed to +% be * here). Unless an option has specified +% that the long-form is to be used, the macros look ahead to +% see whether the short-form delimiter occurs next. If so, +% it is assumed that the short-form is being used. In any case, +% the appropriate \@begin... macro is executed before the argument is +% handled. + +\newcount\@numarguments \@numarguments=1 + +\def\@executetoend{% + \ifnum\@numarguments>0 + \if@longform \def\@afterbegintag{\@longparse}% + \else + \def\@afterbegintag{\@checknexttoken + {\@SFD}{\@shortparse}{\@longparse}}% + \fi + \else + \def\@afterbegintag{}% + \fi + \csname @begin\CurrentTag\endcsname + \@afterbegintag + } + +% If the short-form is being used and an argument is to be saved, +% we must define a "form" which TeX may follow to pull out the +% tag's argument. The argument is stored away in the token register +% \@argument, and the appropriate end-operation is performed. +% Otherwise (the `argument' is processed on-the-fly), we parse out +% the initial short-form delimiter and activate the ending one. + +\newtoks\@argument + +\def\@shortparse{% + \if@savingargument + \edef\@form{% + \def\noexpand\@@shortparse\the\@otherSFD####1\the\@otherSFD}% + \@long\@form{\@argument{##1}\csname end\CurrentTag\endcsname}% + \else + \expandafter\makeactive\csname\the\@otherSFD\endcsname + \expandafter\def\the\@activeSFD + {\csname end\CurrentTag\endcsname + \expandafter\makeother\csname\the\@otherSFD\endcsname}% + \def\@@shortparse{% + \expandafter\@ignoreone\expandafter{\the\@otherSFD}% + {}% + }% + \fi + \@@shortparse} + +% On the other hand, if the long form is used, TeX must parse to +% the long-form ending tag. Ordinarily we know the ending-tag +% because it is just the \end... which corresponds to the tag +% which initiated the process. We do allow for the possibility, +% however, that we may want to switch this for some reason. E.g. +% the different \verbatim styles allow for \verbatim...\endverbatim +% and ||...||. The easiest way to implement the || style is +% to have the first || call \verbatim and have \verbatim know +% to look for || as the end-tag instead of \endverbatim. This may +% be accomplished by allowing for the possibility of different +% end-tags as below. + +\def\@longparse{% + \if@savingargument + \edef\@form{\def\noexpand\@@longparse####1\the\enddelim}% + \@long\@form{\@argument{##1}\csname end\CurrentTag\endcsname}% + \else \def\@@longparse{}\fi + \@@longparse + } + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% Macros generally available to tags. + +\def\longargument{\def\@long{\long}} + +\def\@authorstyle{\@@@a} +\def\@inlinestyle{\@@@i} +\def\@displaystyle{\@@@d} +\def\@altinlinestyle{} +\def\@altdisplaystyle{} + +\newif\if@removeprewhite \@removeprewhitefalse +\newif\if@removepostwhite \@removepostwhitefalse +\def\removeprewhite{\@removeprewhitetrue} +\def\removepostwhite{\@removepostwhitetrue} + +% Allow for line numbers on a listing as well as rules above and below. +\newif\if@ruled \@ruledfalse +\newif\if@numbered \@numberedfalse +\newcount\linenumber +\newcount\globallinenumber \globallinenumber = 0 +\newif\if@continuingnumbers \@continuingnumbersfalse +\def\continuenumbers{\numbered\@continuingnumberstrue} + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** title, section title, authors, addresses ***** +% + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% title + +\def\title{% + \begingroup + \def\CurrentTag{title}% + \@defaultoptions + \@savingargumenttrue + \@checkoptions} + +\def\endtitle{% + \global\toks@=\expandafter{\the\@argument}% + \endgroup + \edef\thetitle{\ignorespaces\the\toks@\unskip}% + } + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% section titles + +% Material mostly in tugboat.com now + +\setbox\T@stBox=\hbox{\sectitlefont O} +\newdimen\stfontheight \stfontheight=\ht\T@stBox + +\def\sectitle{% + \begingroup + \def\CurrentTag{sectitle}% + \@defaultoptions + \@savingargumenttrue + \global\SecTitletrue + \@checkoptions} + +\def\endsectitle{% + \@sectitle{\the\@argument}% + \endgroup + } + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% authors + +\newcount\authornumber + +\def\author{% + \begingroup + \def\CurrentTag{author}% + \global\advance\authornumber by 1 + \@defaultoptions + \@savingargumenttrue + \@checkoptions} + +\def\endauthor{% + \global\toks@=\expandafter{\the\@argument}% + \endgroup + \expandafter\edef\csname theauthor\number\authornumber\endcsname + {\ignorespaces\the\toks@\unskip}% + \expandafter\let\csname theaddress\number\authornumber\endcsname\relax + \expandafter\let\csname thenetaddress\number\authornumber\endcsname\relax + } + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% addresses + +\def\address{% + \begingroup + \def\CurrentTag{address}% + \@defaultoptions + \@savingargumenttrue + \let\@addressstyle=\@authorstyle + \def\inline{\let\@addressstyle=\@inlinestyle}% + \def\display{\let\@addressstyle=\@displaystyle}% + \@checkoptions} + +\def\endaddress{% + \ifx\@addressstyle\@inlinestyle + \def\\{, }\the\@argument + \endgroup + \def\@next{}% + \else\ifx\@addressstyle\@displaystyle + \endgraf\raggedright + \everypar={\hangindent 1.5\parindent}% + \def\\{\endgraf}% + \def\|{\unskip\hfil\break}% + \vskip\abovedisplayskip + \the\@argument\endgraf + \vskip\belowdisplayskip + \@asifbelowdisplay + \endgroup + \def\@next{\ignorespaces}% + \else + \global\toks@=\expandafter{\the\@argument}% + \endgroup + \expandafter\edef\csname theaddress\number\authornumber\endcsname + {\ignorespaces\the\toks@\unskip}% + \def\@next{}% + \fi \fi + \@next + } + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% network addresses + +\def\netaddress{% + \begingroup + \def\CurrentTag{netaddress}% + \@defaultoptions + \@savingargumenttrue + \let\@network\relax + \def\network##1{\def\@network{##1: }}% + \@SpecialsGetOther + \makeescape\\% + \netaddrat + \netaddrpercent + \@checkoptions} + +{\makeactive\@ + \gdef\netaddrat{\makeactive\@\def@{\char"40\discretionary{}{}{}}} + \makeactive\% + \gdef\netaddrpercent{\makeactive\%\def%{\char"25\discretionary{}{}{}}} +} + +% We want the definition of \thenetaddress... to land at the right +% nesting level, so we have to first pull it to the top, then +% drop back to where we are. + +\def\endnetaddress{% + \global\toks@=\expandafter{\the\@argument}% + \ifx\@network\relax + \gdef\@@network{}% + \else + \xdef\@@network{\@network}% + \fi + \endgroup + \expandafter\edef\csname thenetaddress\number\authornumber\endcsname + {{\noexpand\rm\@@network}% + {\noexpand\netaddrat\noexpand\netaddrpercent\noexpand\net + \ignorespaces\the\toks@\unskip}}% + } + +\def\net{\tt} + +% Overrides to default author and signature formats + +\def\authorlist#1{\def\@authorlist{#1}} + +% Except for the first article in a section, beginnings of articles +% are announced by a horizontal rule the width of the column. +% In the case that this rule happens to fall at the top of a column, +% we have to make sure that it appears at the VERY top of the column +% and not just on the first baseline. To accomplish this, we insert +% an empty rule first and then jump back over it to place the rule that +% readers will see. + +\def\article{% + \@allowspanningfigsfalse + \ifSecTitle \global\SecTitlefalse + \else \vskip\AboveTitleSkip + \kern\topskip + \nullhrule + \kern-\topskip + \kern-\strulethickness + \hrule height\strulethickness depth\z@ + \nobreak + \kern\medskipamount + \fi + \ifx\thetitle\relax + \else + \nobreak + {\parskip\z@\interlinepenalty\@M + \noindent\def\\{\unskip\break}\raggedstretch=.3\colwd\raggedright\bf + \ignorespaces\thetitle\unskip\endgraf}% + \fi + \ifnum\authornumber>0 + \nobreak + \vskip4pt + {\parskip\z@\interlinepenalty\@M + \def\\{\unskip\hfil\break}\hangindent\parindent\raggedright + \@authorlist\endgraf} + \fi + \nobreak + \vskip \BelowTitleSkip + \vskip -\parskip + \tenpoint + \DeleteOptionalSpacesandPars{\noindent\ignorespaces}% + } + + +\def\endarticle{\vfil\end} % redefined in drivers + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** heads ***** +% + +% Heads are set by first saving the text of the head in \@argument +% and then operating appropriately depending upon the \headlevel. +% Selection among the different heads is made by an \ifcase. + +% To remove extra \par tokens between heads and ensuing text in the +% input file, we call \DeleteOptionalSpacesandPars. To do this outside +% the `head' group and just before TeX returns to the normal input stream +% following a call to \head, we must define (globally) a control sequence +% (\@next) and call it at the very end. + +\newcount\headlevel \headlevel=1 + +\def\head{% + \begingroup + \def\CurrentTag{head}% + \@allowindentfalse + \@defaultoptions + \@savingargumenttrue + \def\\{\break}% + \@checkoptions} + +\def\endhead{% + \endgraf + \ifcase\headlevel\or\@domainhead\or\@dosubhead\or\@dosubsubhead\fi + \endgroup + \@next + } + +\def\@domainhead{% + \if@removeprewhite\else\vskip\baselineskip\fi + \noindent{\raggedright\bf\ignorespaces\the\@argument\unskip\endgraf}% + \if@removepostwhite % usually we want the white space + \else\kern0.5\baselineskip\fi + \nobreak + \gdef\@next{% + \if@allowindent\def\@next{}% usually we don't want to indent here + \else\def\@next{\DeleteOptionalSpacesandPars{\noindent\ignorespaces}}\fi + \@next + }% + } + +\def\@dosubhead{% + \if@removeprewhite\else\medskip\fi + \noindent{\frenchspacing\bf\ignorespaces\the\@argument + \unskip\if@headpunctuation.\fi}% + \hskip 0.5em plus \fontdimen3\the\font + \gdef\@next{\DeleteOptionalSpacesandPars{}}% + } + +\def\@dosubsubhead{% + {\frenchspacing\bf\ignorespaces\the\@argument\unskip}% + \hskip 0.5em plus \fontdimen3\the\font + \gdef\@next{\DeleteOptionalSpacesandPars{}}% + } + +\def\subhead{\head[\headlevel=2]} +\def\subsubhead{\head[\headlevel=3]} + +\newif\if@headpunctuation \@headpunctuationtrue +\def\nopunctuation{\@headpunctuationfalse} + +\newif\if@allowindent +\def\allowindent{\global\@allowindenttrue} +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** text and subtext ***** +% + +% The code here exists primarily to implement \subtext. The treatment +% is similar to that for \head in that an \ifcase statement is called +% to choose between the various text levels. Here, however, we handle +% the `text' on the fly instead of saving it as an argument. + +\newcount\textlevel \textlevel=1 + +\def\text{% + \begingroup + \def\CurrentTag{text}% + \@defaultoptions + \@savingargumentfalse + \@checkoptions} + +\def\@begintext{% + \endgraf + \ifcase\textlevel\or\or\@setupsubtext\fi + } + +\def\@setupsubtext{% + \vskip\abovedisplayskip + \advance\leftskip by 0.5\parindent + \advance\rightskip by 0.5\parindent + \ninepoint\rm + } + +\def\endtext{% + \gdef\@next{}% + \ifcase\textlevel\or\or\@dosubtext\fi + \endgroup + \@next + } + +\def\@dosubtext{% + \endgraf + \vskip\belowdisplayskip + \gdef\@next{\@asifbelowdisplay}% + } + +\def\subtext{\text[\textlevel=2]} + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** lists ***** +% + +\newcount\listlevel \listlevel=1 +\newif\if@itemized +\newcount\itemnumber +\newtoks\@itemtag +\newcount\@cols % number of columns in list +\newdimen\colsepwidth +\newdimen\@listindent +\newdimen\@listhangindent +\newif\if@firstitem % when first item is handled differently +\newtoks\everylist + +\def\list{% + \begingroup + \def\CurrentTag{list}% + \let\@liststyle=\@displaystyle + \def\inline{\let\@liststyle=\@inlinestyle}% + \def\display{\let\@liststyle=\@displaystyle}% + \def\displaystyle##1{\def\@altdisplaystyle{##1}}% + \def\inlinestyle##1{\def\@altinlinestyle{##1}}% + \def\item{% + \begingroup + \def\CurrentTag{item}% + \@numarguments=0 + \@checkoptions}% + \@itemtag={$\bullet$}% + \def\tag##1{\@itemtag{##1}}% + \def\tagform##1{\llap{##1\strutt\enspace}}% + \@itemizedtrue + \def\unitemized{\@itemizedfalse}% + \itemnumber=0 + \def\numbered{\@itemtag={\number\itemnumber.}}% + \def\romannumeraled{\@itemtag={\romannumeral\itemnumber.}}% + \def\Romannumeraled{\@itemtag= + {\uppercase\expandafter{\romannumeral\itemnumber.}}}% + \def\lettered{\itemnumber="60 \@itemtag={\char\itemnumber.}}% + \def\Lettered{\itemnumber="40 \@itemtag={\char\itemnumber.}}% + \def\ruled{\@ruledtrue}% + \@ruledfalse + \@cols=1 + \def\cols{\@cols}% + \@firstitemtrue + \def\@itemseparator{, }% + \def\itemseparator##1{\def\@itemseparator{##1}}% + \@defaultoptions + \@savingargumentfalse + \the\everylist + \@checkoptions} + +\def\@beginlist{% + \ifx\@liststyle\@displaystyle + \endgraf + \ifnum\listlevel=1 + \if@ruled \if@removeprewhite\else\medskip\fi \hrule\kern5pt \nobreak + \else \if@removeprewhite\else\vskip\abovedisplayskip \fi\fi + \fi + \advance\leftskip\parindent + \@listindent=\parindent + \@listhangindent=\@listindent + \parindent\@listindent + \lineskip\z@ + \if@itemized + \else + \parskip\z@skip + \parindent\z@ + \raggedright + \everypar={\advance\itemnumber\@ne + \tagform{\the\@itemtag}}% + \makeCtrlMendgraf + \fi + \def\colsep{% + \global\count@\itemnumber + \egroup\kern\colsepwidth + \vtop\bgroup + \@altdisplaystyle + \itemnumber=\count@\ignoreendline}% + \ifnum\@cols>1 + \dimen@\colsepwidth + \multiply\dimen@\@cols + \advance\dimen@-\colsepwidth + \advance\hsize-\dimen@ + \divide\hsize by\@cols + \hbox\bgroup\vtop\bgroup + \fi + \@altdisplaystyle + \else + \def\tagform##1{##1\strutt\ }% + \if@itemized + \else + \makeCtrlMseparator + \advance\itemnumber by \@ne + \tagform{\the\@itemtag}% + \fi + \def\colsep{}% + \@altinlinestyle + \fi + } + + +\def\endlist{% + \ifx\@liststyle\@displaystyle + \if@itemized\endgraf\fi + \ifnum\@cols>1 + \egroup % vtop + \egroup % hbox + \fi + \ifnum\listlevel=1 + \if@ruled \kern5pt\hrule\nobreak\vskip2\medskipamount + \else %\nobreak + \if@removepostwhite\else\vskip\belowdisplayskip\fi + \fi + \gdef\@next{\@asifbelowdisplay}% + \fi + \else \gdef\@next{}% + \fi + \endgroup % list + \@next + } + +\def\sublist{\list[\listlevel=2]} + + +\newtoks\everyitem \everyitem{} + + +\def\@beginitem{% + \ifx\@liststyle\@displaystyle + \endgraf + \if@firstitem\@firstitemfalse\else\vskip\smallskipamount\fi + \advance\itemnumber by \@ne + \noindent\leavevmode + \the\everyitem + \tagform{\the\@itemtag}% + \else + \def\item{\if@firstitem\@firstitemfalse\else\unskip\@itemseparator\fi + \advance\itemnumber by \@ne\the\@itemtag\enspace}% + \fi + \global\count@\itemnumber + \global\dimen@\hangindent + \endgroup + \itemnumber\count@ + \hangindent\dimen@ + } + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** verbatim ***** +% + +% Operation here is very similar to that for the other tags. +% The opening tag sets up the situation and looks for optional +% commands and the short-form delimiters. Since initial setup +% involves changing the special characters to characters of +% type other, some juggling must be done when optional commands +% are read. In addition, to allow for implementation of the +% |...| style using the more verbose \verbatim...\endverbatim, +% we parameterize the ending-delimiter. + + % sets default to display style +\def\verbatim{\@verbatim[\display]} + +\def\@verbatim{% + \begingroup + \setupverbatim + \@checkoptions + } + +\def\setupverbatim{% + \def\CurrentTag{verbatim}% + \@defaultoptions + \def\inline{\let\@verbstyle\@inlinestyle}% + \def\display{\let\@verbstyle\@displaystyle}% + \def\displaystyle##1{\def\@altdisplaystyle{##1}}% + \def\inlinestyle##1{\def\@altinlinestyle{##1}}% + \def\numbered{\@numberedtrue}% + \def\ruled{\@ruledtrue}% + \def\smallcode{\ninepoint\tt\baselineskip=10pt}% + \let\@verbinputvar\relax + \let\@verbinputfile\relax + \@SpecialsGetOther + \enddelim=\expandafter{\endverbdelimiter}% + \normalspaces\frenchspacing + \obeylines + \@savingargumenttrue + \the\everyverbatim + } + +\def\@SpecialsGetOther{% + \catcode`\\=\other + \catcode`\{=\other \catcode`\}=\other \catcode`\$=\other + \catcode`\&=\other \catcode`\#=\other \catcode`\%=\other + \catcode`\~=\other \catcode`\_=\other \catcode`\^=\other + \the\@AdditionsToSpecialsGetOther} + +% The \@Additions... register above should be used whenever another +% character is declared to be special for some purpose. E.g., +% we will use the | for the short-form |...| verbatim notation. +% Since the | is generally active for this purpose, it's category +% won't get changed to \other for use in \verbatim...\endverbatim +% unless we add it via this mechanism. + +\newtoks\@AdditionsToSpecialsGetOther + +\def\AddToSpecialsGetOther#1{% + \@AdditionsToSpecialsGetOther= + \expandafter{\the\@AdditionsToSpecialsGetOther#1}} + +% Altering the verbatim setup. +% Users can alter the setup to their purpose by +% putting tokens in the register \everyverbatim. + +\newtoks\everyverbatim + +% Ordinarily the end-tag would be the single token `\endverbatim'. +% The following allows us to `see' the tag when `\' is of type `other'. +{\catcode`\|=0 \catcode`\\=\other +|gdef|endverbdelimiter{\endverbatim}} + +% Input from an external variable or file + +\def\inputfromvar#1{\def\@verbinputvar{#1}}% +\def\inputfromfile#1{\def\@verbinputfile{#1}}% +\let\@verbinputvar\relax +\let\@verbinputfile\relax + +% Outputs + +\newif\if@outputtotype \@outputtotypetrue +\def\notype{\@outputtotypefalse} +\def\outputtovar#1{\def\@verboutputvar{#1}} +\def\outputtofile#1{\def\@verboutputfile{#1}} +\let\@verboutputvar\relax +\let\@verboutputfile\relax +\newwrite\verboutfile + +\def\@beginverbatim{\obeyspaces}%\obeylines} + +\def\endverbatim{% + \ifx\@verboutputvar\relax\else % output to `variable' + \expandafter\xdef\csname\@verboutputvar\endcsname{\the\@argument}% + \fi + \ifx\@verboutputfile\relax\else % output to file + \immediate\openout\verboutfile=\@verboutputfile + \makeCtrlMnewlinechar + \iffalse{\fi\expandafter\@setupverbwrite\the\@argument}% use \@setupwrite to + \immediate\closeout\verboutfile % get rid of initial ^^M + \fi + \gdef\@next{}% % in case following clause is false + \if@outputtotype % output typeset on page + \tt + \ifx\@verbstyle\@inlinestyle + \@beforeverbinline + \@altinlinestyle + \else + \@beforeverbdisplay + \@altdisplaystyle + \fi + \ifx\@verbinputvar\relax\else % input from `variable' + \csname\@verbinputvar\endcsname + \fi + \ifx\@verbinputfile\relax\else % input from file + \fileinput{\@verbinputfile}% + \@endverbatim + \fi + \expandafter\@ignoreCtrlMverbendline\the\@argument\@endverbatim + \ifx\@verbstyle\@inlinestyle + \@afterverbinline + \else + \@afterverbdisplay\gdef\@next{\@asifbelowdisplay}% + \fi + \fi + \endgroup + \@next + } + + +\def\@beforeverbinline{% + \makeCtrlMverbspace + \let\@endverbatim=\empty + } + +\def\@beforeverbdisplay{% + \def\@endverbatim{\verbendline}% + \if@ruled \medskip \hrule\kern5pt \nobreak + \else \vskip\abovedisplayskip + \fi + \makespaceverbspace + \makeCtrlMverbendline + \parskip=\z@skip + \if@numbered \parindent=\z@ + \if@continuingnumbers + \else \global\globallinenumber = \z@ \fi + \linenumber=\z@ \fi + \everypar={\global\advance\globallinenumber by\@ne + \advance\linenumber by\@ne + \ifnum\linenumber<3 \vadjust{\nobreak}\fi + \if@numbered \leavevmode + \hbox to\normalparindent{\hss\sevenrm\the\globallinenumber.\ }% + \fi}% + \frenchspacing\rightskip=-\ttrightskip \hyphenpenalty\@M + } + +% \ttrightskip is the permissible overhang beyond right margin; +% in MANMAC, this is 5pc, which is fine for the TeXbook, but too much here. + +\newdimen\ttrightskip \ttrightskip=1pc + +\def\@afterverbinline{} + +\def\@afterverbdisplay{% + \if@ruled \kern5pt\hrule\fi + \ifnum\linenumber<3 \penalty\z@ \fi + \if@removepostwhite\else + \if@ruled \vskip2\medskipamount \else \vskip\belowdisplayskip\fi + \fi + } + +\def\@asifbelowdisplay{% + \toks@=\expandafter{\the\everypar}% + \noindent + \everypar=\expandafter{\the\toks@}% + \ignorespaces} + + +% Definitions of spaces and ^^M +% \@ignoreCtrlMverbendline is used to lop off an initial ^^M in +% verbatim text and to remove an \@endverbatim (the latter in case the +% verbatim text is actually empty) + +\def\@ignoreendverbatim{\@ignoreone{\@endverbatim}{}} +\def\verbendline{\leavevmode\null\endgraf} +\def\makeCtrlMactive{\catcode`\^^M=\active} +{\makeCtrlMactive +\gdef\makeCtrlMverbendline{\makeCtrlMactive% + \def^^M{\@ignoreone{\@endverbatim}{\verbendline}}}% +\makeCtrlMverbendline% +\gdef\@ignoreCtrlMverbendline{\@ignoreone{ +}{\@ignoreendverbatim}}% +\gdef\@setupverbwrite{\@ignoreone{ +}{\immediate\write\verboutfile\bgroup}}% +\gdef\makeCtrlMverbspace{\makeCtrlMactive\def^^M{\verbatimspace}}% +\gdef\makeCtrlMnewlinechar{\newlinechar=`\^^M}% +\gdef\makeCtrlMendgraf{\makeCtrlMactive\def^^M{\strutt\endgraf}}% +\gdef\makeCtrlMseparator{\makeCtrlMactive% + \def^^M{% + \@checknexttoken {\endlist}{}{% + \@itemseparator\advance\itemnumber by \@ne \tagform{\the\@itemtag}% + \ignorespaces}}}% +} + +% to read a variable or file name properly, we must interpret +% spaces and ^^M as nothing or as spaces + +{\makeCtrlMactive\obeyspaces% +\gdef\makeCtrlMempty{\def^^M{}}% +\gdef\makespaceempty{\def {}}% +} +{\makeCtrlMactive\obeyspaces% +\gdef\makeCtrlMspace{\def^^M{\space}}% +\gdef\makespacespace{\def {\space}}% +} + +{\makeCtrlMactive% +\gdef\@ignoreCtrlM#1{\@ignoreone{^^M}{#1}}% +\gdef\ignoreendline{\@ignoreCtrlM{}}% +} + +% From David Eppstein's ``Trees'' paper (6#1), preserve initial spaces. +\def\verbatimspace{\ifvmode\indent\fi\space} +{\obeyspaces\gdef\makespaceverbspace{\def {\verbatimspace}}} + + + +% Options and variants. + +\def\verbinline{\verbatim[\inline]} +\def\verbdisplay{\verbatim[\display]} +\def\verbfile#1{\verbatim[\inputfromfile{#1}]} + + +% Verbatim with the other characters (e.g. |...|). +% Procedures are parameterized so that it is easy to allow +% different characters to perform this function. Any character +% that's chosen could cause problems if it occurs unexpectedly +% in the middle of what is supposed to be verbatim text. We call +% the current special character for this purpose the "verbchar" +% and store it in active form in the token register \@verbchar. + +\newtoks\@verbchar + +% On hitting a "verbchar" in the middle of text, TeX must look ahead +% to see whether the verbchar occurs again. Since this +% look-ahead fixes the category of the token examined, we must change +% the categories of all characters appropriately before looking +% (and we read \everyverbatim in case it contains a category change). +% We must also "gobble" the second verbchar if we hit one. +% Depending upon whether 1 or 2 verbchars are found, we call +% \verbatim with the appropriate style command. We also use an +% optional command to change the delimiter which ends this \verbatim +% block. We naturally localize the changes to category codes made on +% startup. It's easier to end this group here at the beginning and to +% restart everything in a standard \verbatim than it is to add an extra +% \endgroup after the verbatim text. + +\def\@firstverbchar{% + \begingroup + \setupverbatim +% \@SpecialsGetOther + \makeverbcharactive + \expandafter\@checknexttoken\expandafter{\the\@verbchar}% + {\expandafter\@ignoreone\expandafter{\the\@verbchar}% + {\endgroup\verbatim[\longform\maketwoendverb]}}% + {\endgroup\verbatim[\inline\longform\makeoneendverb]}% + } + +\def\setupverbchar{% + \def\makeoneendverb{\catcode\expandafter`\csname\expandafter + \string\the\@verbchar\endcsname= + \active\edef\endverbdelimiter{\the\@verbchar}% + \enddelim=\expandafter{\endverbdelimiter}}% + \def\maketwoendverb{\catcode\expandafter`\csname\expandafter + \string\the\@verbchar\endcsname= + \active\edef\endverbdelimiter{\the\@verbchar\the\@verbchar}% + \enddelim=\expandafter{\endverbdelimiter}}% + \expandafter\let\the\@verbchar\@firstverbchar + \makeverbcharactive + \AddToSpecialsGetOther{% + \catcode\expandafter`\csname + \expandafter\string\the\@verbchar\endcsname=\other}% + } + +\def\makeverbcharactive{% + \catcode\expandafter`\csname + \expandafter\string\the\@verbchar\endcsname=\active} + +{\makeother\| \gdef\VertChar{|}} +{\makeactive\| +\gdef\makevertverbchar{% + \@verbchar={|}% + \setupverbchar + } +} + +{\makeother\! \gdef\WowChar{!}} +{\makeactive\! +\gdef\makewowverbchar{% + \@verbchar={!}% + \setupverbchar + } +} + + +\def\MTH{$} +\def\sb{_} +\def\sp{^} +\def\SP{{\tt\char"20 }} % "visible" space +\chardef\bs=`\\ +\def\vrt{{\tt\char`\|}} +\def\brokenvert{\hbox to 5.24998pt{\hfill + \lower 1.5pt\vbox to 8.5pt{\hrule width .9pt height 3.25pt + \vfill\hrule width .9pt height 3.25pt}\hfill}} + + + +\def\@lt{$<$} +\def\@gt{$>$} +{\makeactive\< +\gdef\enablemetacode{% + \AddToSpecialsGetOther{\catcode`\<=\other}% + \makeactive\<% + \def<##1>{$\langle${\it\makeCtrlMspace\makespacespace##1\/}$\rangle$}% + } +} + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** figures ***** +% + + +\newif\if@@mid \@@midfalse +\newif\if@@bot \@@botfalse +\def\@caption{} +\newif\if@fixed \@fixedfalse + + % items for top and bottom ``banners'' on first page +\def\resetfirsthead{\global\toplgt=\z@ \gdef\firsthead{}} +\resetfirsthead +\newbox\firsth@@d \newbox\firsth@ad + +\def\resetfirstfoot{\global\botlgt=\z@ \gdef\firstfoot{}} +\resetfirstfoot +\newbox\firstf@@t \newbox\firstf@ot + +\newif\if@allowspanningfigs + +\newcount\@figurepage +\newcount\@figurescol +\newcount\@figureecol + + +\def\figure{% + \begingroup + \def\CurrentTag{figure}% + \@defaultoptions + \@savingargumentfalse + \def\top{}% + \def\bot{\@@bottrue}% + \def\mid{\@@midtrue}% + \def\caption##1{\def\@caption{\ulap{\bigskip##1\smallskip}}}% + \def\fixed{\@fixedtrue}% + \def\scol{\@figurescol}% + \def\ecol{\@figureecol}% + \@figurepage=\pageno + \@figurescol=1 + \@figureecol=\numcols + \def\page{% + \@ignoreall{\space}% + {\@ignoreone{=}% + {\@ignoreall{\space}% + {\@checknexttoken{+}{\@ignoreone{+}{\advance\@figurepage by}}% + {\@figurepage=}% + }% + }% + }% + }% + \@checkoptions} + +\def\@beginfigure{% + \if@fixed + \global\ThisIsFirstPagetrue + \setbox\T@stBox=\vbox\bgroup \hsize\pagewd + \else + \if@@mid\midinsert\else\if@@bot\botinsert\else\topinsert\fi\fi + \fi + } + +\def\endfigure{% + \@caption + \if@fixed + \egroup + \if@allowspanningfigs + \ifnum\@figurepage>\pageno + \immediate\write\sixt@@n{^^J + Setting multiple column figures currently not allowed on pages^^J + other than the first of each article. Check your source file.^^J}% + \else + \if@@bot + \ifdim \botlgt=\z@ \global\botlgt=\ht\T@stBox \resetpagelgt \fi + \global\setbox\firstf@ot=\vbox to \botlgt{\box\T@stBox \vfil}% + \global\setbox\firstf@@t=\vbox to \botlgt{\vfil}% + \gdef\firstfoot{\ifnum \xcol=2 \copy\firstf@ot + \else \copy\firstf@@t \fi }% + \else + \ifdim \toplgt=\z@ \global\toplgt=\ht\T@stBox \resetpagelgt \fi +% assume that \firsth@ad ends with glue, hence no \dp + \global\setbox\firsth@ad=\vbox to \toplgt{\box\T@stBox \vfil}% + \global\setbox\firsth@@d=\vbox to \toplgt{\vfil}% + \gdef\firsthead{\ifnum \xcol=2 \box\firsth@ad + \else \copy\firsth@@d \fi }% + \fi + \fi + \else + \immediate\write\sixt@@n{^^J + Setting multiple column figures currently not allowed after^^J + article has begun.^^J}% + \fi + \else \endinsert + \fi + \endgroup + } + +\def\twocolfigure{% + \figure[\fixed]} + + + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** utilities ***** +% + + + +\def\linebreak{\unskip\break} % conflicts with LaTeX definition + +% Define a structure that will permit a list (using \obeylines) +% to be made into 2 columns, split by \vsplit, indented the +% normal \parindent + +\def\NormalizeBlockHeight{% + \TestCount=1 % \@ne + \TestDimen=\dimen0 \advance\TestDimen by-\topskip + \CutOneLine } +\def\CutOneLine{% + \advance\TestCount by 1 \advance\TestDimen by-\baselineskip + \ifdim\TestDimen < \baselineskip % \@ne + \def\result{% + \TestDimen=\baselineskip + \multiply\TestDimen by \TestCount + \advance\TestDimen by \topskip + \global\dimen0=\TestDimen }% + \else \def\result{\CutOneLine }\fi + \result } + +\def\twosplit{% + {\topskip=\baselineskip \splittopskip=\topskip + \setbox0=\copy\TestBox + \dimen0=\ht\TestBox + \NormalizeBlockHeight + \divide\dimen0 by 2 + \setbox\LeftHalf=\vsplit\TestBox to \dimen0 + \ifdim\ht\TestBox > \ht\LeftHalf + \advance\dimen0 by \baselineskip + \setbox\TestBox=\copy0 + \setbox\LeftHalf=\vsplit\TestBox to \dimen0 + \fi + \line{\kern\parindent\valign{##\vfil\cr + \unvbox\LeftHalf\cr\noalign{\hfil}\unvbox\TestBox\cr}}% + }% + \global\setbox0=\null} + +\newbox\LeftHalf +\newdimen\HalfWd +\HalfWd=\twocolcolwd +\advance\HalfWd by-\normalparindent +\divide\HalfWd by 2 + +{\obeylines +\gdef\twouplist #1{% + \topskip=\baselineskip \splittopskip=\topskip + \begingroup \parindent=\z@ \obeylines +% next line ends with intentional <cr> + \def\endtwouplist{ + \egroup % % end of \vbox + \endgroup % % end of \obeylines group + \twosplit }% + \global\setbox\TestBox=\vbox\bgroup\hsize=\HalfWd % + \indent\vrule height\topskip width \z@ #1}% +} + +% Tags for special formatting of editor's notes (See also TUGBOAT.COM) + +\def\Editor{\noindent To the Editor:\par} +\def\EdNote #1{% + \if #1[% + \ifvmode \smallskip\noindent \else \unskip\hskip1em \fi + [\thinspace\xEdNote\ignorespaces + \else \ifFirstPar \else \medskip\noindent \fi + \xEdNote #1\fi } + + + +% Draw a box around a whole page, e.g. announcements page; +% format must be \onenarrow or \onemedium, and start on a new page. + +\def\bigbox{\hrule \hbox\bgroup \vrule\kern 1pc + \vbox\bgroup \vskip 1pc } +\def\endbox{\endgraf \vskip 1pc \egroup \kern 1pc\vrule \egroup \hrule } + +%% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% ***** initialization ***** +% + + +\def\initializearticle{% + \let\thetitle=\relax + \authornumber=0 + \def\@signature{\@defaultsignature}% + \def\@authorlist{\@defaultauthorlist}% + \@allowspanningfigstrue + } + + +\makeother\@ + +% @ is prohibited in AMS-TeX, but should not be in TUGboat + + +\twocol +\maxcols=2 +\OverlaysinTeXtrue +\Trimmarksfalse +\PrelimDrafttrue +\initializearticle +\pageno=1001 % number of title page + +\StretchyTenPointSpacing +\StretchyNinePointSpacing +\StretchyEightPointSpacing + +\makevertverbchar + +\endinput + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% History of changes + +Version Date Changes +------- --------- --------------------------------------------------- +1.14c 14 Oct 96 lowered footnoterule by 3pt + +1.14b 14 Apr 94 added \interlinepenalty=10000 to avoid page breaks + in very long titles and author lists + +1.14a 8 Nov 93 removed extraneous " from header + +1.14 19 Feb 93 installed new TUG address and phone number in header + +1.13 13 Oct 92 Added \SMC in \ninepoint + +1.12 4 Jun 92 Added stretchability to \rightskip in ragged title + +1.11 8 Mar 92 Changed name of tugboat.com to tugboat.cmn to avoid + conflict with special meaning of .com with some + operating systems + Within verbatim, added \smallcode (from tugproc) + Added standard headers, prepared for archive installation + +1.10 21 Oct 91 Corrected font for \SMC in \tenpoint to \ninerm + (\ninesmc was used, but set to cmcsc10) + Changed \EdNote to detect \ifvmode when tag followed + by [ and to \smallskip and \noindent in that case + rather than performing \hskip1em + +1.09 11 Mar 91 Made \ an escape character in network addresses. + Added mechanism for saving \long arguments of + TUGboat macros (see uses of \@long). + +1.08 18 Oct 90 Incorporated redefinition of \sl within \bf + Changed an \input within \verbatim to \fileinput. + Added means of turning off punctuation after subheads. + Removed \nobreak after lists +1.07 8 Jun 90 Corrected definition of \newpage + +1.06 13 May 90 Added \@setupverbwrite to eliminate initial ^^M + as \verbatim writes to a file. + + Made strut on first line of footnote slightly taller + so as to separate footnotes. + + Reset \@verbinputfile and \@verbinputvar to \relax + to allow nesting + + Removed some \global assignments to \@argument and + 2 verbatim flags to allow nesting. + +1.05 23 Apr 90 Added "\setupverbatim" to \@firstverbchar so + that category switches are accomodated properly. + +1.04 7 Mar 90 Added \colsepwidth to allow for separation between + columns of lists + +1.03 1 Mar 90 Modified \@dosubhead and \@dosubsubhead to allow + stretchable space afterward + +1.02 25 Feb 90 Added \resetmaxcols to allow for automatic adjustment + of \maxcols; if overlays are done by the driver, + \maxcols needs to be set to an overall job maximum + at the start of the job. + + Added setting of \SecTitletrue to definition + of \sectitle. + + Added indicator of style file loaded (\tubstyle). + +1.01 17 Jan 90 Modified \@executetoend so that \@next would not + be clobbered by \csname @begin\CurrentTag\endcsname; + \@next changed to \@afterbegintag + + Added `\the' before \@otherSFD within definition of + \@shortparse + + added \@altdisplaystyle to definition of \colsep |