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sig-alt-release.cls
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% SIG-ALT-RELEASE.CLS - VERSION 1.0
% "COMPATIBLE" WITH THE "ACM_PROC_ARTICLE-SP.CLS" V2.01SP
% PRODUCES A 'TIGHTER' PAPER AND DOES INCLUDE A RELEASE STATEMENT
% Gerald Murray December 6 2000
%
% ---- Start of 'updates' ----
%
% Allowance made to switch default fonts between those systems using
% METAFONT and those using 'Type 1' or 'Truetype' fonts.
% See LINE NUMBER 232 for details.
% Also provided for enumerated/annotated Corollaries 'surrounded' by
% enumerated Theorems (line 790).
% Gerry November 11th. 1999
%
% ---- End of 'updates' ----
%
\def\fileversion{v1.0} % for ACM's tracking purposes
\def\filedate{December 6, 2000} % Gerry Murray's tracking data
\def\docdate {Wednesday 6th. December 2000} % Gerry Murray (with deltas to doc}
\usepackage{epsfig}
\usepackage{amssymb}
\usepackage{amsmath}
\usepackage{amsfonts}
%
% SIG-ALT-RELEASE DOCUMENT STYLE
% G.K.M. Tobin August-October 1999
% adapted from ARTICLE document style by Ken Traub, Olin Shivers
% also using elements of esub2acm.cls
% HEAVILY MODIFIED, SUBSEQUENTLY, BY GERRY MURRAY 2000
% ARTICLE DOCUMENT STYLE -- Released 16 March 1988
% for LaTeX version 2.09
% Copyright (C) 1988 by Leslie Lamport
%
%
%%% sig-alt-release.cls is an 'ALTERNATE-RELEASE' document style for producing
%%% two-column camera-ready pages for ACM conferences.
%%% THIS FILE DOES NOT STRICTLY ADHERE TO THE SIGS (BOARD-ENDORSED)
%%% PROCEEDINGS STYLE. It has been designed to produce a 'tighter'
%%% paper in response to concerns over page budgets.
%%% The main features of this style are:
%%%
%%% 1) Two columns.
%%% 2) Side and top margins of 4.5pc, bottom margin of 6pc, column gutter of
%%% 2pc, hence columns are 20pc wide and 55.5pc tall. (6pc =3D 1in, approx)
%%% 3) First page has title information, and an extra 6pc of space at the
%%% bottom of the first column for the ACM copyright notice.
%%% 4) Text is 9pt on 10pt baselines; titles (except main) are 9pt bold.
%%%
%%%
%%% There are a few restrictions you must observe:
%%%
%%% 1) You cannot change the font size; ACM wants you to use 9pt.
%%% 3) You must start your paper with the \maketitle command. Prior to the
%%% \maketitle you must have \title and \author commands. If you have a
%%% \date command it will be ignored; no date appears on the paper, since
%%% the proceedings will have a date on the front cover.
%%% 4) Marginal paragraphs, tables of contents, lists of figures and tables,
%%% and page headings are all forbidden.
%%% 5) The `figure' environment will produce a figure one column wide; if you
%%% want one that is two columns wide, use `figure*'.
%%%
%
%%% Copyright Space:
%%% This style automatically reserves 1" blank space at the bottom of page 1/
%%% column 1. This space can optionally be filled with some text using the
%%% \toappear{...} command. If used, this command must be BEFORE the \maketitle
%%% command. If this command is defined AND [preprint] is on, then the
%%% space is filled with the {...} text (at the bottom); otherwise, it is
%%% blank. If you use \toappearbox{...} instead of \toappear{...} then a
%%% box will be drawn around the text (if [preprint] is on).
%%%
%%% A typical usage looks like this:
%%% \toappear{To appear in the Ninth AES Conference on Medievil Lithuanian
%%% Embalming Technique, June 1991, Alfaretta, Georgia.}
%%% This will be included in the preprint, and left out of the conference
%%% version.
%%%
%%% WARNING:
%%% Some dvi-ps converters heuristically allow chars to drift from their
%%% true positions a few pixels. This may be noticeable with the 9pt sans-serif
%%% bold font used for section headers.
%%% You may turn this hackery off via the -e option:
%%% dvips -e 0 foo.dvi >foo.ps
%%%
\typeout{Document Class 'sig-alt-release' <6th. December '00>. Modified by G.K.M. Tobin/Gerry Murray}
\typeout{Based in part upon document Style `acmconf' <22 May 89>. Hacked 4/91 by}
\typeout{[email protected], 4/93 by [email protected]}
\typeout{Excerpts were taken from (Journal Style) 'esub2acm.cls'.}
\typeout{****** Bugs/comments/suggestions/technicalities to Gerry Murray -- [email protected] ******}
\typeout{Questions on the style, SIGS policies, etc. to Julie Goetz [email protected] or Adrienne Griscti [email protected]}
\oddsidemargin 4.5pc
\evensidemargin 4.5pc
\advance\oddsidemargin by -1in % Correct for LaTeX gratuitousness
\advance\evensidemargin by -1in % Correct for LaTeX gratuitousness
\marginparwidth 0pt % Margin pars are not allowed.
\marginparsep 11pt % Horizontal space between outer margin and
% marginal note
% Top of page:
\topmargin 4.5pc % Nominal distance from top of page to top of
% box containing running head.
\advance\topmargin by -1in % Correct for LaTeX gratuitousness
\headheight 0pt % Height of box containing running head.
\headsep 0pt % Space between running head and text.
% Bottom of page:
\footskip 30pt % Distance from baseline of box containing foot
% to baseline of last line of text.
\@ifundefined{footheight}{\newdimen\footheight}{}% this is for LaTeX2e
\footheight 12pt % Height of box containing running foot.
%% Must redefine the top margin so there's room for headers and
%% page numbers if you are using the preprint option. Footers
%% are OK as is. Olin.
\advance\topmargin by -37pt % Leave 37pt above text for headers
\headheight 12pt % Height of box containing running head.
\headsep 25pt % Space between running head and text.
\textheight 666pt % 9 1/4 column height
\textwidth 42pc % Width of text line.
% For two-column mode:
\columnsep 2pc % Space between columns
\columnseprule 0pt % Width of rule between columns.
\hfuzz 1pt % Allow some variation in column width, otherwise it's
% too hard to typeset in narrow columns.
\footnotesep 5.6pt % Height of strut placed at the beginning of every
% footnote =3D height of normal \footnotesize strut,
% so no extra space between footnotes.
\skip\footins 8.1pt plus 4pt minus 2pt % Space between last line of text and
% top of first footnote.
\floatsep 11pt plus 2pt minus 2pt % Space between adjacent floats moved
% to top or bottom of text page.
\textfloatsep 18pt plus 2pt minus 4pt % Space between main text and floats
% at top or bottom of page.
\intextsep 11pt plus 2pt minus 2pt % Space between in-text figures and
% text.
\@ifundefined{@maxsep}{\newdimen\@maxsep}{}% this is for LaTeX2e
\@maxsep 18pt % The maximum of \floatsep,
% \textfloatsep and \intextsep (minus
% the stretch and shrink).
\dblfloatsep 11pt plus 2pt minus 2pt % Same as \floatsep for double-column
% figures in two-column mode.
\dbltextfloatsep 18pt plus 2pt minus 4pt% \textfloatsep for double-column
% floats.
\@ifundefined{@dblmaxsep}{\newdimen\@dblmaxsep}{}% this is for LaTeX2e
\@dblmaxsep 18pt % The maximum of \dblfloatsep and
% \dbltexfloatsep.
\@fptop 0pt plus 1fil % Stretch at top of float page/column. (Must be
% 0pt plus ...)
\@fpsep 8pt plus 2fil % Space between floats on float page/column.
\@fpbot 0pt plus 1fil % Stretch at bottom of float page/column. (Must be
% 0pt plus ... )
\@dblfptop 0pt plus 1fil % Stretch at top of float page. (Must be 0pt plus ...)
\@dblfpsep 8pt plus 2fil % Space between floats on float page.
\@dblfpbot 0pt plus 1fil % Stretch at bottom of float page. (Must be
% 0pt plus ... )
\marginparpush 5pt % Minimum vertical separation between two marginal
% notes.
\parskip 0pt plus 1pt % Extra vertical space between paragraphs.
\parindent 9pt % GM July 2000 / was 0pt - width of paragraph indentation.
\partopsep 2pt plus 1pt minus 1pt% Extra vertical space, in addition to
% \parskip and \topsep, added when user
% leaves blank line before environment.
\@lowpenalty 51 % Produced by \nopagebreak[1] or \nolinebreak[1]
\@medpenalty 151 % Produced by \nopagebreak[2] or \nolinebreak[2]
\@highpenalty 301 % Produced by \nopagebreak[3] or \nolinebreak[3]
\@beginparpenalty -\@lowpenalty % Before a list or paragraph environment.
\@endparpenalty -\@lowpenalty % After a list or paragraph environment.
\@itempenalty -\@lowpenalty % Between list items.
\@namedef{ds@10pt}{\@latexerr{The `10pt' option is not allowed in the `acmconf'
document style.}\@eha}
\@namedef{ds@11pt}{\@latexerr{The `11pt' option is not allowed in the `acmconf'
document style.}\@eha}
\@namedef{ds@12pt}{\@latexerr{The `12pt' option is not allowed in the `acmconf'
document style.}\@eha}
\@options
\lineskip 2pt % \lineskip is 1pt for all font sizes.
\normallineskip 2pt
\def\baselinestretch{1}
\abovedisplayskip 9pt plus2pt minus4.5pt%
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip \z@ plus3pt%
\belowdisplayshortskip 5.4pt plus3pt minus3pt%
\let\@listi\@listI % Setting of \@listi added 9 Jun 87
\def\small{\@setsize\small{9pt}\viiipt\@viiipt
\abovedisplayskip 7.6pt plus 3pt minus 4pt%
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip \z@ plus2pt%
\belowdisplayshortskip 3.6pt plus2pt minus 2pt
\def\@listi{\leftmargin\leftmargini %% Added 22 Dec 87
\topsep 4pt plus 2pt minus 2pt\parsep 2pt plus 1pt minus 1pt
\itemsep \parsep}}
\def\footnotesize{\@setsize\footnotesize{9pt}\ixpt\@ixpt
\abovedisplayskip 6.4pt plus 2pt minus 4pt%
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip \z@ plus 1pt%
\belowdisplayshortskip 2.7pt plus 1pt minus 2pt
\def\@listi{\leftmargin\leftmargini %% Added 22 Dec 87
\topsep 3pt plus 1pt minus 1pt\parsep 2pt plus 1pt minus 1pt
\itemsep \parsep}}
\newcount\aucount
\newcount\originalaucount
\newdimen\auwidth
\auwidth=\textwidth
\newdimen\auskip
\newcount\auskipcount
\newdimen\auskip
\global\auskip=1pc
\newdimen\allauboxes
\allauboxes=\auwidth
\newtoks\addauthors
\newcount\addauflag
\global\addauflag=0 %Haven't shown additional authors yet
\newtoks\subtitletext
\gdef\subtitle#1{\subtitletext={#1}}
\gdef\additionalauthors#1{\addauthors={#1}}
\gdef\numberofauthors#1{\global\aucount=#1
\ifnum\aucount>3\global\originalaucount=\aucount \global\aucount=3\fi %g}
\global\auskipcount=\aucount\global\advance\auskipcount by 1
\global\multiply\auskipcount by 2
\global\multiply\auskip by \auskipcount
\global\advance\auwidth by -\auskip
\global\divide\auwidth by \aucount}
% \and was modified to count the number of authors. GKMT 12 Aug 1999
\def\alignauthor{% % \begin{tabular}
\end{tabular}%
\begin{tabular}[t]{p{\auwidth}}\centering}%
% *** NOTE *** NOTE *** NOTE *** NOTE ***
% If you have 'font problems' then you may need
% to change these, e.g. 'arialb' instead of "arialbd".
% Gerry Murray 11/11/1999
% *** OR ** comment out block A and activate block B or vice versa.
% **********************************************
%
% -- Start of block A -- (Type 1 or Truetype fonts)
%\newfont{\secfnt}{timesbd at 12pt} % was timenrb originally - now is timesbd
%\newfont{\secit}{timesbi at 12pt} %13 Jan 00 gkmt
%\newfont{\subsecfnt}{timesi at 11pt} % was timenrri originally - now is timesi
%\newfont{\subsecit}{timesbi at 11pt} % 13 Jan 00 gkmt -- was times changed to timesbi gm 2/4/2000
% % because "normal" is italic, "italic" is Roman
%\newfont{\ttlfnt}{arialbd at 18pt} % was arialb originally - now is arialbd
%\newfont{\ttlit}{arialbi at 18pt} % 13 Jan 00 gkmt
%\newfont{\subttlfnt}{arial at 14pt} % was arialr originally - now is arial
%\newfont{\subttlit}{ariali at 14pt} % 13 Jan 00 gkmt
%\newfont{\subttlbf}{arialbd at 14pt} % 13 Jan 00 gkmt
%\newfont{\aufnt}{arial at 12pt} % was arialr originally - now is arial
%\newfont{\auit}{ariali at 12pt} % 13 Jan 00 gkmt
%\newfont{\affaddr}{arial at 10pt} % was arialr originally - now is arial
%\newfont{\affaddrit}{ariali at 10pt} %13 Jan 00 gkmt
%\newfont{\eaddfnt}{arial at 12pt} % was arialr originally - now is arial
%\newfont{\ixpt}{times at 9pt} % was timenrr originally - now is times
%\newfont{\confname}{timesi at 8pt} % was timenrri - now is timesi
%\newfont{\crnotice}{times at 8pt} % was timenrr originally - now is times
%\newfont{\ninept}{times at 9pt} % was timenrr originally - now is times
% *********************************************
% -- End of block A --
%
%
% -- Start of block B -- METAFONT
% +++++++++++++++++++++++++++++++++++++++++++++
% Next (default) block for those using Metafont
% Gerry Murray 11/11/1999
% *** THIS BLOCK FOR THOSE USING METAFONT *****
% *********************************************
\newfont{\secfnt}{ptmb at 12pt}
\newfont{\secit}{ptmbi at 12pt} %13 Jan 00 gkmt
\newfont{\subsecfnt}{ptmri at 11pt}
\newfont{\subsecit}{ptmbi at 11pt} % 13 Jan 00 gkmt -- was ptmr changed to ptmbi gm 2/4/2000
% because "normal" is italic, "italic" is Roman
\newfont{\ttlfnt}{phvb at 18pt}
\newfont{\ttlit}{phvbo at 18pt} % GM 2/4/2000
\newfont{\subttlfnt}{phvr at 14pt}
\newfont{\subttlit}{phvro at 14pt} % GM 2/4/2000
\newfont{\subttlbf}{phvb at 14pt} % 13 Jan 00 gkmt
\newfont{\aufnt}{phvr at 12pt}
\newfont{\auit}{phvro at 12pt} % GM 2/4/2000
\newfont{\affaddr}{phvr at 10pt}
\newfont{\affaddrit}{phvro at 10pt} % GM 2/4/2000
\newfont{\eaddfnt}{phvr at 12pt}
\newfont{\ixpt}{ptmr at 9pt}
\newfont{\confname}{ptmri at 8pt}
\newfont{\crnotice}{ptmr at 8pt}
\newfont{\ninept}{ptmr at 9pt}
% +++++++++++++++++++++++++++++++++++++++++++++
% -- End of block B --
\def\email#1{{{\eaddfnt{\vskip 4pt#1}}}}
\def\addauthorsection{\ifnum\originalaucount>3
\section{Additional Authors}\the\addauthors
\fi}
\newcount\savesection
\newcount\sectioncntr
\global\sectioncntr=1
\setcounter{secnumdepth}{3}
\def\appendix{\par
\section*{APPENDIX}
\setcounter{section}{0}
\setcounter{subsection}{0}
\def\thesection{\Alph{section}} }
\leftmargini 22.5pt
\leftmarginii 19.8pt % > \labelsep + width of '(m)'
\leftmarginiii 16.8pt % > \labelsep + width of 'vii.'
\leftmarginiv 15.3pt % > \labelsep + width of 'M.'
\leftmarginv 9pt
\leftmarginvi 9pt
\leftmargin\leftmargini
\labelsep 4.5pt
\labelwidth\leftmargini\advance\labelwidth-\labelsep
\def\@listI{\leftmargin\leftmargini \parsep 3.6pt plus 2pt minus 1pt%
\topsep 7.2pt plus 2pt minus 4pt%
\itemsep 3.6pt plus 2pt minus 1pt}
\let\@listi\@listI
\@listi
\def\@listii{\leftmargin\leftmarginii
\labelwidth\leftmarginii\advance\labelwidth-\labelsep
\topsep 3.6pt plus 2pt minus 1pt
\parsep 1.8pt plus 0.9pt minus 0.9pt
\itemsep \parsep}
\def\@listiii{\leftmargin\leftmarginiii
\labelwidth\leftmarginiii\advance\labelwidth-\labelsep
\topsep 1.8pt plus 0.9pt minus 0.9pt
\parsep \z@ \partopsep 1pt plus 0pt minus 1pt
\itemsep \topsep}
\def\@listiv{\leftmargin\leftmarginiv
\labelwidth\leftmarginiv\advance\labelwidth-\labelsep}
\def\@listv{\leftmargin\leftmarginv
\labelwidth\leftmarginv\advance\labelwidth-\labelsep}
\def\@listvi{\leftmargin\leftmarginvi
\labelwidth\leftmarginvi\advance\labelwidth-\labelsep}
\def\labelenumi{\theenumi.}
\def\theenumi{\arabic{enumi}}
\def\labelenumii{(\theenumii)}
\def\theenumii{\alph{enumii}}
\def\p@enumii{\theenumi}
\def\labelenumiii{\theenumiii.}
\def\theenumiii{\roman{enumiii}}
\def\p@enumiii{\theenumi(\theenumii)}
\def\labelenumiv{\theenumiv.}
\def\theenumiv{\Alph{enumiv}}
\def\p@enumiv{\p@enumiii\theenumiii}
\def\labelitemi{$\bullet$}
\def\labelitemii{\bf --}
\def\labelitemiii{$\ast$}
\def\labelitemiv{$\cdot$}
\def\verse{\let\\=\@centercr
\list{}{\itemsep\z@ \itemindent -1.5em\listparindent \itemindent
\rightmargin\leftmargin\advance\leftmargin 1.5em}\item[]}
\let\endverse\endlist
\def\quotation{\list{}{\listparindent 1.5em
\itemindent\listparindent
\rightmargin\leftmargin \parsep 0pt plus 1pt}\item[]}
\let\endquotation=\endlist
\def\quote{\list{}{\rightmargin\leftmargin}\item[]}
\let\endquote=\endlist
\def\descriptionlabel#1{\hspace\labelsep \bf #1}
\def\description{\list{}{\labelwidth\z@ \itemindent-\leftmargin
\let\makelabel\descriptionlabel}}
\let\enddescription\endlist
\def\theequation{\arabic{equation}}
\arraycolsep 4.5pt % Half the space between columns in an array environment.
\tabcolsep 5.4pt % Half the space between columns in a tabular environment.
\arrayrulewidth .4pt % Width of rules in array and tabular environment.
\doublerulesep 1.8pt % Space between adjacent rules in array or tabular env.
\tabbingsep \labelsep % Space used by the \' command. (See LaTeX manual.)
\skip\@mpfootins =\skip\footins
\fboxsep =2.7pt % Space left between box and text by \fbox and \framebox.
\fboxrule =.4pt % Width of rules in box made by \fbox and \framebox.
\def\thepart{\Roman{part}} % Roman numeral part numbers.
\def\thesection {\arabic{section}}
\def\thesubsection {\thesection.\arabic{subsection}}
\def\thesubsubsection {\thesubsection.\arabic{subsubsection}}
\def\theparagraph {\thesubsubsection.\arabic{paragraph}}
\def\thesubparagraph {\theparagraph.\arabic{subparagraph}}
\def\@pnumwidth{1.55em}
\def\@tocrmarg {2.55em}
\def\@dotsep{4.5}
\setcounter{tocdepth}{3}
\def\tableofcontents{\@latexerr{\tableofcontents: Tables of contents are not
allowed in the `acmconf' document style.}\@eha}
\def\l@part#1#2{\addpenalty{\@secpenalty}
\addvspace{2.25em plus 1pt} % space above part line
\begingroup
\@tempdima 3em % width of box holding part number, used by
\parindent \z@ \rightskip \@pnumwidth %% \numberline
\parfillskip -\@pnumwidth
{\large \bf % set line in \large boldface
\leavevmode % TeX command to enter horizontal mode.
#1\hfil \hbox to\@pnumwidth{\hss #2}}\par
\nobreak % Never break after part entry
\endgroup}
\def\l@section#1#2{\addpenalty{\@secpenalty} % good place for page break
\addvspace{1.0em plus 1pt} % space above toc entry
\@tempdima 1.5em % width of box holding section number
\begingroup
\parindent \z@ \rightskip \@pnumwidth
\parfillskip -\@pnumwidth
\bf % Boldface.
\leavevmode % TeX command to enter horizontal mode.
\advance\leftskip\@tempdima %% added 5 Feb 88 to conform to
\hskip -\leftskip %% 25 Jan 88 change to \numberline
#1\nobreak\hfil \nobreak\hbox to\@pnumwidth{\hss #2}\par
\endgroup}
\def\l@subsection{\@dottedtocline{2}{1.5em}{2.3em}}
\def\l@subsubsection{\@dottedtocline{3}{3.8em}{3.2em}}
\def\l@paragraph{\@dottedtocline{4}{7.0em}{4.1em}}
\def\l@subparagraph{\@dottedtocline{5}{10em}{5em}}
\def\listoffigures{\@latexerr{\listoffigures: Lists of figures are not
allowed in the `acmconf' document style.}\@eha}
\def\l@figure{\@dottedtocline{1}{1.5em}{2.3em}}
\def\listoftables{\@latexerr{\listoftables: Lists of tables are not
allowed in the `acmconf' document style.}\@eha}
\let\l@table\l@figure
\def\footnoterule{\kern-3\p@
\hrule width .4\columnwidth
\kern 2.6\p@} % The \hrule has default height of .4pt .
\long\def\@makefntext#1{\noindent
\hbox to .5em{\hss$^{\@thefnmark}$}#1}
\long\def\@maketntext#1{\noindent
#1}
\long\def\@maketitlenotetext#1#2{\noindent
\hbox to 1.8em{\hss$^{#1}$}#2}
\setcounter{topnumber}{2}
\def\topfraction{.7}
\setcounter{bottomnumber}{1}
\def\bottomfraction{.3}
\setcounter{totalnumber}{3}
\def\textfraction{.2}
\def\floatpagefraction{.5}
\setcounter{dbltopnumber}{2}
\def\dbltopfraction{.7}
\def\dblfloatpagefraction{.5}
%
\long\def\@makecaption#1#2{
\vskip \baselineskip
\setbox\@tempboxa\hbox{\textbf{#1: #2}}
\ifdim \wd\@tempboxa >\hsize % IF longer than one line:
\textbf{#1: #2}\par % THEN set as ordinary paragraph.
\else % ELSE center.
\hbox to\hsize{\hfil\box\@tempboxa\hfil}\par
\fi}
%
\long\def\@makecaption#1#2{
\vskip 10pt
\setbox\@tempboxa\hbox{\textbf{#1: #2}}
\ifdim \wd\@tempboxa >\hsize % IF longer than one line:
\textbf{#1: #2}\par % THEN set as ordinary paragraph.
\else % ELSE center.
\hbox to\hsize{\hfil\box\@tempboxa\hfil}
\fi}
\@ifundefined{figure}{\newcounter {figure}} % this is for LaTeX2e
\def\fps@figure{tbp}
\def\ftype@figure{1}
\def\ext@figure{lof}
\def\fnum@figure{Figure \thefigure}
\def\figure{\@float{figure}}
\let\endfigure\end@float
\@namedef{figure*}{\@dblfloat{figure}}
\@namedef{endfigure*}{\end@dblfloat}
\@ifundefined{table}{\newcounter {table}} % this is for LaTeX2e
\def\fps@table{tbp}
\def\ftype@table{2}
\def\ext@table{lot}
\def\fnum@table{Table \thetable}
\def\table{\@float{table}}
\let\endtable\end@float
\@namedef{table*}{\@dblfloat{table}}
\@namedef{endtable*}{\end@dblfloat}
\newtoks\titleboxnotes
\newcount\titleboxnoteflag
\def\maketitle{\par
\begingroup
\def\thefootnote{\fnsymbol{footnote}}
\def\@makefnmark{\hbox
to 0pt{$^{\@thefnmark}$\hss}}
\twocolumn[\@maketitle]
\@thanks
\endgroup
\setcounter{footnote}{0}
\let\maketitle\relax
\let\@maketitle\relax
\gdef\@thanks{}\gdef\@author{}\gdef\@title{}\gdef\@subtitle{}\let\thanks\relax
\@copyrightspace}
%% CHANGES ON NEXT LINES
\newif\if@ll % to record which version of LaTeX is in use
\expandafter\ifx\csname LaTeXe\endcsname\relax % LaTeX2.09 is used
\else% LaTeX2e is used, so set ll to true
\global\@lltrue
\fi
\if@ll
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{sig-alt-release} [2000/12/06 - V1.0 - based on acmproc.cls V1.3 <Nov. 30 '99>]
\RequirePackage{latexsym}% QUERY: are these two really needed?
\let\dooptions\ProcessOptions
\else
\let\dooptions\@options
\fi
%% END CHANGES
\def\@height{height}
\def\@width{width}
\def\@minus{minus}
\def\@plus{plus}
\def\hb@xt@{\hbox to}
\newif\if@faircopy
\@faircopyfalse
\def\ds@faircopy{\@faircopytrue}
\def\ds@preprint{\@faircopyfalse}
\@twosidetrue
\@mparswitchtrue
\def\ds@draft{\overfullrule 5\p@}
%% CHANGE ON NEXT LINE
\dooptions
\lineskip \p@
\normallineskip \p@
\def\baselinestretch{1}
\def\@ptsize{0} %needed for amssymbols.sty
%% CHANGES ON NEXT LINES
\if@ll% allow use of old-style font change commands in LaTeX2e
\@maxdepth\maxdepth
%
\DeclareOldFontCommand{\rm}{\ninept\rmfamily}{\mathrm}
\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
\DeclareRobustCommand*{\cal}{\@fontswitch{\relax}{\mathcal}}
\DeclareRobustCommand*{\mit}{\@fontswitch{\relax}{\mathnormal}}
\fi
%
\if@ll
\renewcommand{\rmdefault}{cmr} % was 'ttm'
% Note! I have also found 'mvr' to work ESPECIALLY well.
% Gerry - October 1999
% You may need to change your LV1times.fd file so that sc is
% mapped to cmcsc - -for smallcaps -- that is if you decide
% to change {cmr} to {times} above. (Not recommended)
\renewcommand{\@ptsize}{}
\renewcommand{\normalsize}{%
\@setfontsize\normalsize\@ixpt{10.5\p@}%\ninept%
\abovedisplayskip 6\p@ \@plus2\p@ \@minus\p@
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 6\p@ \@minus 3\p@
\belowdisplayshortskip 6\p@ \@minus 3\p@
\let\@listi\@listI
}
\else
\def\@normalsize{%changed next to 9 from 10
\@setsize\normalsize{9\p@}\ixpt\@ixpt
\abovedisplayskip 6\p@ \@plus2\p@ \@minus\p@
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip 6\p@ \@minus 3\p@
\belowdisplayshortskip 6\p@ \@minus 3\p@
\let\@listi\@listI
}%
\fi
\if@ll
\newcommand\scriptsize{\@setfontsize\scriptsize\@viipt{8\p@}}
\newcommand\tiny{\@setfontsize\tiny\@vpt{6\p@}}
\newcommand\large{\@setfontsize\large\@xiipt{14\p@}}
\newcommand\Large{\@setfontsize\Large\@xivpt{18\p@}}
\newcommand\LARGE{\@setfontsize\LARGE\@xviipt{20\p@}}
\newcommand\huge{\@setfontsize\huge\@xxpt{25\p@}}
\newcommand\Huge{\@setfontsize\Huge\@xxvpt{30\p@}}
\else
\def\scriptsize{\@setsize\scriptsize{8\p@}\viipt\@viipt}
\def\tiny{\@setsize\tiny{6\p@}\vpt\@vpt}
\def\large{\@setsize\large{14\p@}\xiipt\@xiipt}
\def\Large{\@setsize\Large{18\p@}\xivpt\@xivpt}
\def\LARGE{\@setsize\LARGE{20\p@}\xviipt\@xviipt}
\def\huge{\@setsize\huge{25\p@}\xxpt\@xxpt}
\def\Huge{\@setsize\Huge{30\p@}\xxvpt\@xxvpt}
\fi
\normalsize
% make aubox hsize/number of authors up to 3, less gutter
% then showbox gutter showbox gutter showbox -- GKMT Aug 99
\newbox\@acmtitlebox
\def\@maketitle{\newpage
\null
\setbox\@acmtitlebox\vbox{%
\baselineskip 20pt
\vskip 2em % Vertical space above title.
\begin{center}
{\ttlfnt \@title\par} % Title set in 18pt Helvetica (Arial) bold size.
\vskip 1.5em % Vertical space after title.
%This should be the subtitle.
{\subttlfnt \the\subtitletext\par}\vskip 1.25em%\fi
{\baselineskip 16pt\aufnt % each author set in \12 pt Arial, in a
\lineskip .5em % tabular environment
\begin{tabular}[t]{c}\@author
\end{tabular}\par}
\vskip 1.5em % Vertical space after author.
\end{center}}
\dimen0=\ht\@acmtitlebox
\advance\dimen0 by -12.75pc\relax % Increased space for title box -- KBT
\unvbox\@acmtitlebox
\ifdim\dimen0<0.0pt\relax\vskip-\dimen0\fi}
\newcount\titlenotecount
\global\titlenotecount=0
\newtoks\tntoks
\newtoks\tntokstwo
\newtoks\tntoksthree
\newtoks\tntoksfour
\newtoks\tntoksfive
\def\abstract{
\ifnum\titlenotecount>0 % was =1
\insert\footins{%
\reset@font\footnotesize
\interlinepenalty\interfootnotelinepenalty
\splittopskip\footnotesep
\splitmaxdepth \dp\strutbox \floatingpenalty \@MM
\hsize\columnwidth \@parboxrestore
\protected@edef\@currentlabel{%
}%
\color@begingroup
\ifnum\titlenotecount=1
\@maketntext{%
\raisebox{4pt}{$\ast$}\rule\z@\footnotesep\ignorespaces\the\tntoks\@finalstrut\strutbox}%
\fi
\ifnum\titlenotecount=2
\@maketntext{%
\raisebox{4pt}{$\ast$}\rule\z@\footnotesep\ignorespaces\the\tntoks\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\dagger$}\rule\z@\footnotesep\ignorespaces\the\tntokstwo\@finalstrut\strutbox}%
\fi
\ifnum\titlenotecount=3
\@maketntext{%
\raisebox{4pt}{$\ast$}\rule\z@\footnotesep\ignorespaces\the\tntoks\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\dagger$}\rule\z@\footnotesep\ignorespaces\the\tntokstwo\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\ddagger$}\rule\z@\footnotesep\ignorespaces\the\tntoksthree\@finalstrut\strutbox}%
\fi
\ifnum\titlenotecount=4
\@maketntext{%
\raisebox{4pt}{$\ast$}\rule\z@\footnotesep\ignorespaces\the\tntoks\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\dagger$}\rule\z@\footnotesep\ignorespaces\the\tntokstwo\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\ddagger$}\rule\z@\footnotesep\ignorespaces\the\tntoksthree\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\S$}\rule\z@\footnotesep\ignorespaces\the\tntoksfour\@finalstrut\strutbox}%
\fi
\ifnum\titlenotecount=5
\@maketntext{%
\raisebox{4pt}{$\ast$}\rule\z@\footnotesep\ignorespaces\the\tntoks\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\dagger$}\rule\z@\footnotesep\ignorespaces\the\tntokstwo\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\ddagger$}\rule\z@\footnotesep\ignorespaces\the\tntoksthree\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\S$}\rule\z@\footnotesep\ignorespaces\the\tntoksfour\par\@finalstrut\strutbox}%
\@maketntext{%
\raisebox{4pt}{$\P$}\rule\z@\footnotesep\ignorespaces\the\tntoksfive\@finalstrut\strutbox}%
\fi
\color@endgroup} %g}
\fi
\setcounter{footnote}{0}
\section*{ABSTRACT}\normalsize%\ninept
}
\def\endabstract{\if@twocolumn\else\endquotation\fi}
\def\keywords{\if@twocolumn
\section*{Keywords}
\else \small
\quotation
\fi}
\def\terms{\if@twocolumn
\section*{General Terms}
\else \small
\quotation
\fi}
% -- Classification needs to be a bit smart due to optionals - Gerry/Georgia November 2nd. 1999
\newcount\catcount
\global\catcount=1
\def\category#1#2#3{%
\ifnum\catcount=1
\section*{Categories and Subject Descriptors}
\advance\catcount by 1\else{\unskip; }\fi
\@ifnextchar [{\@category{#1}{#2}{#3}}{\@category{#1}{#2}{#3}[]}%
}
\def\@category#1#2#3[#4]{%
\begingroup
\let\and\relax
#1 [\textbf{#2}]%
\if!#4!%
\if!#3!\else : #3\fi
\else
:\space
\if!#3!\else #3\kern\z@---\hskip\z@\fi
\textit{#4}%
\fi
\endgroup
}
%
%%% This section (written by KBT) handles the 1" box in the lower left
%%% corner of the left column of the first page by creating a picture,
%%% and inserting the predefined string at the bottom (with a negative
%%% displacement to offset the space allocated for a non-existent
%%% caption).
%%%
\newtoks\copyrightnotice
\def\ftype@copyrightbox{8}
\def\@copyrightspace{
\@float{copyrightbox}[b]
\begin{center}
\setlength{\unitlength}{1pc}
\begin{picture}(20,6) %Space for copyright notice
\put(0,-0.95){\crnotice{\@toappear}}
\end{picture}
\end{center}
\end@float}
\def\@toappear{} % Default setting blank - commands below change this.
\long\def\toappear#1{\def\@toappear{\parbox[b]{20pc}{\baselineskip 9pt#1}}}
\def\toappearbox#1{\def\@toappear{\raisebox{5pt}{\framebox[20pc]{\parbox[b]{19pc}{#1}}}}}
\newtoks\conf
\newtoks\confinfo
\def\conferenceinfo#1#2{\global\conf={#1}\global\confinfo{#2}}
\def\marginpar{\@latexerr{The \marginpar command is not allowed in the
`acmconf' document style.}\@eha}
\mark{{}{}} % Initializes TeX's marks
\def\today{\ifcase\month\or
January\or February\or March\or April\or May\or June\or
July\or August\or September\or October\or November\or December\fi
\space\number\day, \number\year}
\def\@begintheorem#1#2{%
\parskip 0pt % GM July 2000 (for tighter spacing)
\trivlist
\item[%
\hskip 10\p@
\hskip \labelsep
{{\sc #1}\hskip 5\p@\relax#2.}%
]
\it
}
\def\@opargbegintheorem#1#2#3{%
\parskip 0pt % GM July 2000 (for tighter spacing)
\trivlist
\item[%
\hskip 10\p@
\hskip \labelsep
{\sc #1\ #2\ % This mod by Gerry to enumerate corollaries
\setbox\@tempboxa\hbox{(#3)} % and bracket the 'corollary title'
\ifdim \wd\@tempboxa>\z@ % and retain the correct numbering of e.g. theorems
\hskip 5\p@\relax % if they occur 'around' said corollaries.
\box\@tempboxa % Gerry - Nov. 1999.
\fi.}%
]
\it
}
\newif\if@qeded
\global\@qededfalse
\def\proof{%
\vspace{-\parskip} % GM July 2000 (for tighter spacing)
\global\@qededfalse
\@ifnextchar[{\@xproof}{\@proof}%
}
\def\endproof{%
\if@qeded\else\qed\fi
\endtrivlist
}
\def\@proof{%
\trivlist
\item[%
\hskip 10\p@
\hskip \labelsep
{\sc Proof.}%
]
\ignorespaces
}
\def\@xproof[#1]{%
\trivlist
\item[\hskip 10\p@\hskip \labelsep{\sc Proof #1.}]%
\ignorespaces
}
\def\qed{%
\unskip
\kern 10\p@
\begingroup
\unitlength\p@
\linethickness{.4\p@}%
\framebox(6,6){}%
\endgroup
\global\@qededtrue
}
\def\newdef#1#2{%
\expandafter\@ifdefinable\csname #1\endcsname
{\@definecounter{#1}%
\expandafter\xdef\csname the#1\endcsname{\@thmcounter{#1}}%
\global\@namedef{#1}{\@defthm{#1}{#2}}%
\global\@namedef{end#1}{\@endtheorem}%
}%
}
\def\@defthm#1#2{%
\refstepcounter{#1}%
\@ifnextchar[{\@ydefthm{#1}{#2}}{\@xdefthm{#1}{#2}}%
}
\def\@xdefthm#1#2{%
\@begindef{#2}{\csname the#1\endcsname}%
\ignorespaces
}
\def\@ydefthm#1#2[#3]{%
\trivlist
\item[%
\hskip 10\p@
\hskip \labelsep
{\it #2%
\savebox\@tempboxa{#3}%
\ifdim \wd\@tempboxa>\z@
\ \box\@tempboxa
\fi.%
}]%
\ignorespaces
}
\def\@begindef#1#2{%
\trivlist
\item[%
\hskip 10\p@
\hskip \labelsep
{\it #1\ \rm #2.}%
]%
}
\def\theequation{\arabic{equation}}
\newcounter{part}
\newcounter{section}
\newcounter{subsection}[section]
\newcounter{subsubsection}[subsection]
\newcounter{paragraph}[subsubsection]
\def\thepart{\Roman{part}}
\def\thesection{\arabic{section}}
\def\thesubsection{\thesection.\arabic{subsection}}
\def\thesubsubsection{{\subsecfnt\thesubsection.\arabic{subsubsection}}}
\def\theparagraph{{\subsecfnt\thesubsubsection.\arabic{paragraph}}}
\newif\if@uchead
\@ucheadfalse
%% CHANGES: NEW NOTE
%% NOTE: OK to use old-style font commands below, since they were
%% suitably redefined for LaTeX2e
%% END CHANGES
\setcounter{secnumdepth}{3}
\def\part{%
\@startsection{part}{9}{\z@}{-10\p@ \@plus -4\p@ \@minus -2\p@}
{4\p@}{\normalsize\@ucheadtrue}%
}
\def\section{%
\@startsection{section}{1}{\z@}{-10\p@ \@plus -4\p@ \@minus -2\p@}% GM
{4\p@}{\baselineskip 14pt\secfnt\@ucheadtrue}%
}
\def\subsection{%
\@startsection{subsection}{2}{\z@}{-8\p@ \@plus -2\p@ \@minus -\p@}
{4\p@}{\secfnt}%
}
\def\subsubsection{%
\@startsection{subsubsection}{3}{\z@}{-8\p@ \@plus -2\p@ \@minus -\p@}%
{4\p@}{\subsecfnt}%
}
\def\paragraph{%
\vskip 12pt\@startsection{paragraph}{3}{\z@}{6\p@ \@plus \p@}%
{-5\p@}{\subsecfnt}%
}
\let\@period=.
\def\@startsection#1#2#3#4#5#6{%
\if@noskipsec %gkmt, 11 aug 99
\global\let\@period\@empty
\leavevmode
\global\let\@period.%
\fi
\par %
\@tempskipa #4\relax
\@afterindenttrue
\ifdim \@tempskipa <\z@
\@tempskipa -\@tempskipa
\@afterindentfalse
\fi
\if@nobreak
\everypar{}%
\else
\addpenalty\@secpenalty
\addvspace\@tempskipa
\fi
\parskip=0pt % GM July 2000 (non numbered) section heads
\@ifstar
{\@ssect{#3}{#4}{#5}{#6}}
{\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
}
\def\@sect#1#2#3#4#5#6[#7]#8{%
\ifnum #2>\c@secnumdepth
\let\@svsec\@empty
\else
\refstepcounter{#1}%
\edef\@svsec{%
\begingroup
\ifnum#2>2 \noexpand\rm \fi
\csname the#1\endcsname
\endgroup
\ifnum #2=1\relax .\fi
\hskip 1em
}%
\fi
\@tempskipa #5\relax
\ifdim \@tempskipa>\z@
\begingroup