Acm proc article-sp.cls

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    %\begin{latex}
    % ACM_PROC_ARTICLE-SP.CLS - VERSION 3.1SP
    % COMPATIBLE WITH THE "SIG-ALTERNATE" V2.3
    % Gerald Murray JUNE 7th. 2007
    %
    % ---- Start of 'updates'  ----
    %
    % To produce Type 1 fonts in the document plus allow for 'normal LaTeX accenting' in the
    critical areas;
    % title, author block, section-heads, etc. etc. 
    % i.e. the whole purpose of this version update is to NOT resort to 'inelegant accent
    patches'.
    % After much research, three extra .sty packages were added to the the tail (ae, aecompl,
    aeguill) to solve,
    % in particular, the accenting problem(s). We _could_ ask authors (via instructions/sample
    file) to 'include' these in
    % the source .tex file - in the preamble - but if everything is already provided ('behind
    the scenes' - embedded IN the .cls)
    % then this is less work for authors and also makes everything appear 'vanilla'.
    % NOTE: all 'patchwork accenting" has been commented out (here) and is no longer 'used' in
    the sample .tex file (either).
    % Gerry June 2007
    %
    % Rule widths changed to .5, author count (>6) fixed, roll-back for Type 3 problem. Gerry
    March 20th. 2007
    % Changes made to 'modernize' the fontnames but esp. for MikTeX users V2.4/2.5 - Nov.
    30th. 2006
    % Updated the \email definition to allow for its use inside of 'shared affiliations' -
    Nov. 30th. 2006
    % Fixed the 'section number depth value' - Nov. 30th. 2006
    %
    % Footnotes inside table cells using \minipage (Oct. 2002)
    % Georgia fixed bug in sub-sub-section numbering in paragraphs (July 29th. 2002)
    % JS/GM fix to vertical spacing before Proofs (July 30th. 2002)
    %
    % Allowance made to switch default fonts between those systems using
    % normal/modern font names and those using 'Type 1' or 'Truetype' fonts.
    % See LINE NUMBER 269 for details.
    % Also provided for enumerated/annotated Corollaries 'surrounded' by
    % enumerated Theorems (line 844).
    % Gerry November 11th. 1999
    %
    % This 'sp' version does NOT produce the permission block.
    %
    % Major change in January 2000 was to include a "blank line" in between
    % new paragraphs. This involved major changes to the, then, acmproc-sp.cls  1.0SP
    % file, precipitating a 'new' name: "acm_proc_article-sp.cls" V2.01SP.
    %
    %
    %
    % ---- End of 'updates' ----
    %
    \def\fileversion{V3.1SP}          % for ACM's tracking purposes
    \def\filedate{June 7, 2007}    % Gerry Murray's tracking data
    \def\docdate {Thursday 7th. June 2007} % Gerry Murray (with deltas to doc}
    \usepackage{epsfig}
    \usepackage{amssymb}
    \usepackage{amsmath}
    \usepackage{amsfonts}
    % Need this for accents in Arial/Helvetica
    %\usepackage[T1]{fontenc}  % Gerry March 12, 2007 - causes Type 3 problems (body text)
    %\usepackage{textcomp}
    %
    % ACM_PROC_ARTICLE-SP  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
    % LATEST REVISION V3.1SP - JUNE 2007
    % ARTICLE DOCUMENT STYLE -- Released 16 March 1988
    %    for LaTeX version 2.09
    % Copyright (C) 1988 by Leslie Lamport
    %
    %
    %%% ACM_PROC_ARTICLE-SP is a document style for producing two-column camera-ready pages
    for
    %%% ACM conferences, according to ACM specifications.  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 leaves 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 'acm_proc_article-sp' <7th. June '07>.  Modified by G.K.M. Tobin}
    \typeout{Based in part upon document Style `acmconf' <22 May 89>. Hacked 4/91 by}
    \typeout{shivers@cs.cmu.edu, 4/93 by theobald@cs.mcgill.ca}
    \typeout{Excerpts were taken from (Journal Style) 'esub2acm.cls'.}
    \typeout{****** Bugs/comments/suggestions  to Gerry Murray -- murray@hq.acm.org ******}
     
    \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                % Extra vertical space between paragraphs.
                        % Set to 0pt outside sections, to keep section heads
                        % uniformly spaced.  The value of parskip is set
                        % to leading value _within_ sections.
                        % 12 Jan 2000 gkmt
    \parindent 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}  % 3 OK - Gerry
    March 2007
    \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 -- UPDATED FONT NAMES
    % *********************************************
    % Gerry Murray 11/30/2006
    % *********************************************
    \newfont{\secfnt}{ptmb8t at 12pt}
    \newfont{\secit}{ptmbi8t at 12pt}    %13 Jan 00 gkmt
    \newfont{\subsecfnt}{ptmri8t at 11pt}
    \newfont{\subsecit}{ptmbi8t at 11pt}  % 
    \newfont{\ttlfnt}{phvb8t at 18pt}
    \newfont{\ttlit}{phvbo8t at 18pt}    % GM 2/4/2000
    \newfont{\subttlfnt}{phvr8t at 14pt}
    \newfont{\subttlit}{phvro8t at 14pt} % GM 2/4/2000
    \newfont{\subttlbf}{phvb8t at 14pt}  % 13 Jan 00 gkmt
    \newfont{\aufnt}{phvr8t at 12pt}
    \newfont{\auit}{phvro8t at 12pt}     % GM 2/4/2000
    \newfont{\affaddr}{phvr8t at 10pt}
    \newfont{\affaddrit}{phvro8t at 10pt} % GM 2/4/2000
    \newfont{\eaddfnt}{phvr8t at 12pt}
    \newfont{\ixpt}{ptmr8t at 9pt}
    \newfont{\confname}{ptmri8t at 8pt}
    \newfont{\crnotice}{ptmr8t at 8pt}
    \newfont{\ninept}{ptmr8t at 9pt}
    % +++++++++++++++++++++++++++++++++++++++++++++
    % -- End of block B --
     
    %\def\email#1{{{\eaddfnt{\vskip 4pt#1}}}}
    % If we have an email, inside a "shared affiliation" then we need the following instead
    \def\email#1{{{\eaddfnt{\par #1}}}}       % revised  - GM - 11/30/2006
     
    \def\addauthorsection{\ifnum\originalaucount>6  % was 3 - Gerry March 2007
        \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 .5pt % Width of rules in array and tabular environment. % (was .4) updated
    Gerry March 20 2007
    \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 =.5pt      % Width of rules in box made by \fbox and \framebox. % (was .4)
    updated Gerry March 20 2007
     
    \def\thepart{\Roman{part}} % Roman numeral part numbers.
    \def\thesection       {\arabic{section}}
    \def\thesubsection    {\thesection.\arabic{subsection}}
    %\def\thesubsubsection {\thesubsection.\arabic{subsubsection}} % GM 7/30/2002
    %\def\theparagraph     {\thesubsubsection.\arabic{paragraph}}  % GM 7/30/2002
    \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 .5\columnwidth   % (was .4) updated Gerry March 20 2007
      \kern 2.6\p@}                 % The \hrule has default height of .4pt % (was .4) updated
    Gerry March 20 2007
    % ------
    \long\def\@makefntext#1{\noindent 
    %\hbox to .5em{\hss$^{\@thefnmark}$}#1}   % original
    \hbox to .5em{\hss\textsuperscript{\@thefnmark}}#1}  % C. Clifton / GM Oct. 2nd. 2002
    % -------
     
    \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}
     
    \@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{acm_proc_article-sp} [2007/06/07 - V3.1SP - based on esub2acm.sty <23
    April 96>]
      \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 %\the\parskip \the\baselineskip%\ninept
    }
     
    \def\endabstract{\if@twocolumn\else\endquotation\fi}
     
    \def\keywords{\if@twocolumn
    \section*{Keywords}
    \else \small
    \quotation
    \fi}
     
    % I've pulled the check for 2 cols, since proceedings are _always_
    % two-column  11 Jan 2000 gkmt
    \def\terms{%\if@twocolumn
    \section*{General Terms}
    %\else \small
    %\quotation\the\parskip
    %\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{%
        \trivlist
        \item[%
            \hskip 10\p@
            \hskip \labelsep
            {{\sc #1}\hskip 5\p@\relax#2.}%
        ]
        \it
    }
    \def\@opargbegintheorem#1#2#3{%
        \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
     
    % -- original
    %\def\proof{%
    %  \vspace{-\parskip} % GM July 2000 (for tighter spacing)
    %    \global\@qededfalse
    %    \@ifnextchar[{\@xproof}{\@proof}%
    %}
    % -- end of original
     
    % (JSS) Fix for vertical spacing bug - Gerry Murray July 30th. 2002
    \def\proof{%
    \vspace{-\lastskip}\vspace{-\parsep}\penalty-51%
    \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{\thesubsection.\arabic{subsubsection}} %removed \subsecfnt 29 July
    2002 gkmt
    \def\theparagraph{\thesubsubsection.\arabic{paragraph}} %removed \subsecfnt 29 July 2002
    gkmt
     
    \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}%
    }
     
    % Rationale for changes made in next four definitions:
    % "Before skip" is made elastic to provide some give in setting columns (vs.
    % parskip, which is non-elastic to keep section headers "anchored" to their
    % subsequent text.
    %
    % "After skip" is minimized -- BUT setting it to 0pt resulted in run-in heads, despite
    % the documentation asserted only after-skip < 0pt would have result.
    %
    % Baselineskip added to style to ensure multi-line section titles, and section heads
    % followed by another section head rather than text, are decently spaced vertically.
    % 12 Jan 2000 gkmt
    \def\section{%
        \@startsection{section}{1}{\z@}{-10\p@ \@plus -4\p@ \@minus -2\p@}%
        {0.5pt}{\baselineskip=14pt\secfnt\@ucheadtrue}%
    }
     
    \def\subsection{%
        \@startsection{subsection}{2}{\z@}{-10\p@ \@plus -4\p@ \@minus -2\p@}
        {0.5pt}{\baselineskip=14pt\secfnt}%
    }
    \def\subsubsection{%
        \@startsection{subsubsection}{3}{\z@}{-10\p@ \@plus -4\p@ \@minus -2\p@}%
        {0.5pt}{\baselineskip=14pt\subsecfnt}%
    }
     
    %\def\paragraph{%
    %    \vskip 12pt\@startsection{paragraph}{3}{\z@}{6\p@ \@plus \p@}% original
    %    {-5\p@}{\subsecfnt}%
    %}
    %  If one wants sections, subsections and subsubsections numbered,
    %  but not paragraphs, one usually sets secnumepth to 3.
    %  For that, the "depth" of paragraphs must be given correctly
    %  in the definition (``4'' instead of ``3'' as second argument
    %  of @startsection):
    \def\paragraph{%
        \vskip 12pt\@startsection{paragraph}{4}{\z@}{6\p@ \@plus \p@}%    % GM and Wolfgang
    May - 11/30/06
        {-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  11 Jan 00 gkmt
            %\everypar{}
        %\else
            \addpenalty\@secpenalty
            \addvspace\@tempskipa
        %\fi
        \parskip=0pt
        \@ifstar
            {\@ssect{#3}{#4}{#5}{#6}}
            {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
    }
     
     
    \def\@ssect#1#2#3#4#5{%
      \@tempskipa #3\relax
      \ifdim \@tempskipa>\z@
        \begingroup
          #4{%
            \@hangfrom{\hskip #1}%
              \interlinepenalty \@M #5\@@par}%
        \endgroup
      \else
        \def\@svsechd{#4{\hskip #1\relax #5}}%
      \fi
      \vskip -10.5pt  %gkmt, 7 jan 00 -- had been -14pt, now set to parskip
      \@xsect{#3}\parskip=10.5pt} % within the starred section, parskip = leading 12 Jan 2000
    gkmt
     
     
    \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 % changed to next 29 July 2002 gkmt
                \ifnum#2>2 \noexpand#6 \fi
                    \csname the#1\endcsname
                \endgroup
                \ifnum #2=1\relax .\fi
                \hskip 1em
            }%
        \fi
        \@tempskipa #5\relax
        \ifdim \@tempskipa>\z@
            \begingroup
                #6\relax
                \@hangfrom{\hskip #3\relax\@svsec}%
                \begingroup
                    \interlinepenalty \@M
                    \if@uchead
                        \uppercase{#8}%
                    \else
                        #8%
                    \fi
                    \par
                \endgroup
            \endgroup
            \csname #1mark\endcsname{#7}%
            \vskip -10.5pt  % -14pt gkmt, 11 aug 99 -- changed to -\parskip 11 Jan 2000
          \addcontentsline{toc}{#1}{%
                \ifnum #2>\c@secnumdepth \else
                    \protect\numberline{\csname the#1\endcsname}%
                \fi
                #7%
            }%
        \else
            \def\@svsechd{%
                #6%
                \hskip #3\relax
                \@svsec
                \if@uchead
                    \uppercase{#8}%
                \else
                    #8%
                \fi
                \csname #1mark\endcsname{#7}%
                \addcontentsline{toc}{#1}{%
                    \ifnum #2>\c@secnumdepth \else
                        \protect\numberline{\csname the#1\endcsname}%
                    \fi
                    #7%
                }%
            }%
        \fi
        \@xsect{#5}\parskip=10.5pt% within the section, parskip = leading 12 Jan 2000 gkmt
    }
    \def\@xsect#1{%
        \@tempskipa #1\relax
        \ifdim \@tempskipa>\z@
            \par
            \nobreak
            \vskip \@tempskipa
            \@afterheading
        \else
            \global\@nobreakfalse
            \global\@noskipsectrue
            \everypar{%
                \if@noskipsec
                    \global\@noskipsecfalse
                    \clubpenalty\@M
                    \hskip -\parindent
                    \begingroup
                        \@svsechd
                        \@period
                    \endgroup
                    \unskip
                    \@tempskipa #1\relax
                    \hskip -\@tempskipa
                \else
                    \clubpenalty \@clubpenalty
                    \everypar{}%
                \fi
            }%
        \fi
        \ignorespaces
    }
     
    \def\@trivlist{%
        \@topsepadd\topsep
        \if@noskipsec
            \global\let\@period\@empty
            \leavevmode
            \global\let\@period.%
        \fi
        \ifvmode
            \advance\@topsepadd\partopsep
        \else
            \unskip
            \par
        \fi
        \if@inlabel
            \@noparitemtrue
            \@noparlisttrue
        \else
            \@noparlistfalse
            \@topsep\@topsepadd
        \fi
        \advance\@topsep \parskip
        \leftskip\z@skip
        \rightskip\@rightskip
        \parfillskip\@flushglue
        \@setpar{\if@newlist\else{\@@par}\fi}
        \global\@newlisttrue
        \@outerparskip\parskip
    }
     
    %%% Actually, 'abbrev' works just fine as the default - Gerry Feb. 2000
    %%% Bibliography style.
     
    \parindent 0pt
    \typeout{Using 'Abbrev' bibliography style}
    \newcommand\bibyear[2]{%
        \unskip\quad\ignorespaces#1\unskip
        \if#2..\quad \else \quad#2 \fi
    }
    \newcommand{\bibemph}[1]{{\em#1}}
    \newcommand{\bibemphic}[1]{{\em#1\/}}
    \newcommand{\bibsc}[1]{{\sc#1}}
    \def\@normalcite{%
        \def\@cite##1##2{[##1\if@tempswa , ##2\fi]}%
    }
    \def\@citeNB{%
        \def\@cite##1##2{##1\if@tempswa , ##2\fi}%
    }
    \def\@citeRB{%
        \def\@cite##1##2{##1\if@tempswa , ##2\fi]}%
    }
    \def\start@cite#1#2{%
        \edef\citeauthoryear##1##2##3{%
            ###1%
            \ifnum#2=\z@ \else\ ###2\fi
        }%
        \ifnum#1=\thr@@
            \let\@@cite\@citeyear
        \else
            \let\@@cite\@citenormal
        \fi
        \@ifstar{\@citeNB\@@cite}{\@normalcite\@@cite}%
    }
    \def\cite{\start@cite23}
    \def\citeNP{\cite*}
    \def\citeA{\start@cite10}
    \def\citeANP{\citeA*}
    \def\shortcite{\start@cite23}
    \def\shortciteNP{\shortcite*}
    \def\shortciteA{\start@cite20}
    \def\shortciteANP{\shortciteA*}
    \def\citeyear{\start@cite30}
    \def\citeyearNP{\citeyear*}
    \def\citeN{%
        \@citeRB
        \def\citeauthoryear##1##2##3{##1\ [##3%
            \def\reserved@a{##1}%
            \def\citeauthoryear####1####2####3{%
                \def\reserved@b{####1}%
                \ifx\reserved@a\reserved@b
                    ####3%
                \else
                    \errmessage{Package acmart Error: author mismatch
                             in \string\citeN^^J^^J%
                        See the acmart package documentation for explanation}%
                \fi
            }%
        }%
        \@ifstar\@citeyear\@citeyear
    }
    \def\shortciteN{%
        \@citeRB
        \def\citeauthoryear##1##2##3{##2\ [##3%
            \def\reserved@a{##2}%
            \def\citeauthoryear####1####2####3{%
                \def\reserved@b{####2}%
                \ifx\reserved@a\reserved@b
                    ####3%
                \else
                    \errmessage{Package acmart Error: author mismatch
                             in \string\shortciteN^^J^^J%
                        See the acmart package documentation for explanation}%
                \fi
            }%
        }%
        \@ifstar\@citeyear\@citeyear % changed from  "\@ifstart" 12 Jan 2000 gkmt
    }
     
    \def\@citenormal{%
        \@ifnextchar [{\@tempswatrue\@citex;}
                      {\@tempswafalse\@citex,[]}% was ; Gerry 2/24/00
    }
    \def\@citeyear{%
        \@ifnextchar [{\@tempswatrue\@citex,}%
                      {\@tempswafalse\@citex,[]}%
    }
    \def\@citex#1[#2]#3{%
        \let\@citea\@empty
        \@cite{%
            \@for\@citeb:=#3\do{%
                \@citea
                \def\@citea{#1 }%
                \edef\@citeb{\expandafter\@iden\@citeb}%
                \if@filesw
                    \immediate\write\@auxout{\string\citation{\@citeb}}%
                \fi
                \@ifundefined{b@\@citeb}{%
                    {\bf ?}%
                    \@warning{%
                        Citation `\@citeb' on page \thepage\space undefined%
                    }%
                }%
                {\csname b@\@citeb\endcsname}%
            }%
        }{#2}%
    }
    \let\@biblabel\@gobble
    \newdimen\bibindent
    \setcounter{enumi}{1}
    \bibindent=0em
    \def\thebibliography#1{% 
    \ifnum\addauflag=0\addauthorsection\global\addauflag=1\fi
         \section[References]{%    <=== OPTIONAL ARGUMENT ADDED HERE
            {References} % was uppercased but this affects pdf bookmarks (SP/GM October 2004)
             \@mkboth{{\refname}}{{\refname}}%
         }%
         \list{[\arabic{enumi}]}{%
             \settowidth\labelwidth{[#1]}%
             \leftmargin\labelwidth
             \advance\leftmargin\labelsep
             \advance\leftmargin\bibindent
             \parsep=0pt\itemsep=1pt % GM July 2000
             \itemindent -\bibindent
             \listparindent \itemindent
             \usecounter{enumi}
         }%
         \let\newblock\@empty
         \raggedright % GM July 2000
         \sloppy
         \sfcode`\.=1000\relax
    }
     
     
    \gdef\balancecolumns
    {\vfill\eject
    \global\@colht=\textheight
    \global\ht\@cclv=\textheight
    }
     
    \newcount\colcntr
    \global\colcntr=0
    \newbox\savebox
     
    \gdef \@makecol {%
    \global\advance\colcntr by 1
    \ifnum\colcntr>2 \global\colcntr=1\fi
       \ifvoid\footins
         \setbox\@outputbox \box\@cclv
       \else
         \setbox\@outputbox \vbox{%
    \boxmaxdepth \@maxdepth
           \@tempdima\dp\@cclv
           \unvbox \@cclv
           \vskip-\@tempdima
           \vskip \skip\footins
           \color@begingroup
             \normalcolor
             \footnoterule
             \unvbox \footins
           \color@endgroup
           }%
       \fi
       \xdef\@freelist{\@freelist\@midlist}%
       \global \let \@midlist \@empty
       \@combinefloats
       \ifvbox\@kludgeins
         \@makespecialcolbox
       \else
         \setbox\@outputbox \vbox to\@colht {%
    \@texttop
           \dimen@ \dp\@outputbox
           \unvbox \@outputbox
       \vskip -\dimen@
           \@textbottom
           }%
       \fi
       \global \maxdepth \@maxdepth
    }
    \def\titlenote{\@ifnextchar[\@xtitlenote{\stepcounter\@mpfn
    \global\advance\titlenotecount by 1
    \ifnum\titlenotecount=1
        \raisebox{9pt}{$\ast$}
    \fi
    \ifnum\titlenotecount=2
        \raisebox{9pt}{$\dagger$}
    \fi
    \ifnum\titlenotecount=3
        \raisebox{9pt}{$\ddagger$}
    \fi
    \ifnum\titlenotecount=4
    \raisebox{9pt}{$\S$}
    \fi
    \ifnum\titlenotecount=5
    \raisebox{9pt}{$\P$}
    \fi
             \@titlenotetext
    }}
     
    \long\def\@titlenotetext#1{\insert\footins{%
    \ifnum\titlenotecount=1\global\tntoks={#1}\fi
    \ifnum\titlenotecount=2\global\tntokstwo={#1}\fi
    \ifnum\titlenotecount=3\global\tntoksthree={#1}\fi
    \ifnum\titlenotecount=4\global\tntoksfour={#1}\fi
    \ifnum\titlenotecount=5\global\tntoksfive={#1}\fi
        \reset@font\footnotesize
        \interlinepenalty\interfootnotelinepenalty
        \splittopskip\footnotesep
        \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
        \hsize\columnwidth \@parboxrestore
        \protected@edef\@currentlabel{%
        }%
        \color@begingroup
       \color@endgroup}}
     
    %%%%%%%%%%%%%%%%%%%%%%%%%
    \ps@plain
    \baselineskip=11pt
    \let\thepage\relax % For  NO page numbers - Gerry Nov. 30th. 1999
    \def\setpagenumber#1{\global\setcounter{page}{#1}}
    %\pagenumbering{arabic}  % Arabic page numbers but commented out for NO page numbes -
    Gerry Nov. 30th. 1999
    \twocolumn             % Double column.
    \flushbottom           % Even bottom -- alas, does not balance columns at end of document
    \pagestyle{plain}
     
    % Need Copyright Year and Copyright Data to be user definable (in .tex file).
    % Gerry Nov. 30th. 1999
    \newtoks\copyrtyr
    \newtoks\acmcopyr
    \newtoks\boilerplate
    \def\CopyrightYear#1{\global\copyrtyr{#1}}
    \def\crdata#1{\global\acmcopyr{#1}}
    \def\permission#1{\global\boilerplate{#1}}
    %
    \newtoks\copyrightetc
    \global\copyrightetc{\ } %  Need to have 'something' so that adequate space is left for
    pasting in a line if "confinfo" is supplied.
     
    \toappear{\the\boilerplate\par
    {\confname{\the\conf}} \the\confinfo\par \the\copyrightetc}
    % End of ACM_PROC_ARTICLE-SP.CLS -- V3.1SP - 06/07/2007 --
    % Gerry Murray -- Thursday June 7th. 2007
    %
    % The following section (i.e. 3 .sty inclusions) was added in May 2007 so as to fix the
    problems that many
    % authors were having with accents. Sometimes accents would occur, but the
    letter-character would be of a different
    % font. Conversely the letter-character font would be correct but, e.g. a 'bar' would
    appear superimposed on the
    % character instead of, say, an unlaut/diaresis. Sometimes the letter-character would NOT
    appear at all.
    % Using [T1]{fontenc} outright was not an option as this caused 99% of the authors to
    'produce' a Type-3 (bitmapped)
    % PDF file - useless for production. 
    %
    % For proper (font) accenting we NEED these packages to be part of the .cls file i.e.
    'ae', 'aecompl' and 'aeguil' 
    % 13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19
    March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009
    (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26,
    19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March
    2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009
    (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26,
    19 March 2009 (EDT)13:26, 19 March 2009 (EDT)~~
    %% This is file `ae.sty' 
    \def\fileversion{1.3}
    \def\filedate{2001/02/12}
    \NeedsTeXFormat{LaTeX2e}
    %\ProvidesPackage{ae}[\filedate\space\fileversion\space  % GM
    % Almost European Computer Modern]                       % GM - keeping the log file
    clean(er)
    \newif\if@ae@slides \@ae@slidesfalse
    \DeclareOption{slides}{\@ae@slidestrue}
    \ProcessOptions
    \fontfamily{aer}
    \RequirePackage[T1]{fontenc}
    \if@ae@slides
        \renewcommand{\sfdefault}{laess}
        \renewcommand{\rmdefault}{laess} % no roman
        \renewcommand{\ttdefault}{laett}
    \else
        \renewcommand{\sfdefault}{aess}
        \renewcommand{\rmdefault}{aer}
        \renewcommand{\ttdefault}{aett}
    \fi
    \endinput
    %% 
    %% End of file `ae.sty'.
    %
    %
    \def\fileversion{0.9}
    \def\filedate{1998/07/23}
    \NeedsTeXFormat{LaTeX2e}
    %\ProvidesPackage{aecompl}[\filedate\space\fileversion\space   % GM
    %T1 Complements for AE fonts (D. Roegel)]                      % GM -- keeping the log
    file clean(er)
     
    \def\@ae@compl#1{{\fontencoding{T1}\fontfamily{cmr}\selectfont\symbol{#1}}}
    \def\guillemotleft{\@ae@compl{19}}
    \def\guillemotright{\@ae@compl{20}}
    \def\guilsinglleft{\@ae@compl{14}}
    \def\guilsinglright{\@ae@compl{15}}
    \def\TH{\@ae@compl{222}}
    \def\NG{\@ae@compl{141}}
    \def\ng{\@ae@compl{173}}
    \def\th{\@ae@compl{254}}
    \def\DJ{\@ae@compl{208}}
    \def\dj{\@ae@compl{158}}
    \def\DH{\@ae@compl{208}}
    \def\dh{\@ae@compl{240}}
    \def\@perthousandzero{\@ae@compl{24}}
    \def\textperthousand{\%\@perthousandzero}
    \def\textpertenthousand{\%\@perthousandzero\@perthousandzero}
    \endinput
    %
    %
    %% This is file `aeguill.sty' 
    % This file gives french guillemets (and not guillemots!)
    % built with the Polish CMR fonts (default), WNCYR fonts, the LASY fonts 
    % or with the EC fonts. 
    % This is useful in conjunction with the ae package
    % (this package loads the ae package in case it has not been loaded)
    %  and with or without the french(le) package.
    %
    % In order to get the guillemets, it is necessary to either type
    % \guillemotleft and \guillemotright, or to use an 8 bit encoding
    % (such as ISO-Latin1) which selects these two commands, 
    % or, if you use the french package (but not the frenchle package), 
    % to type << or >>.
    %
    % By default, you get the Polish CMR guillemets; if this package is loaded
    % with the `cm' option, you get the LASY guillemets; with `ec,' you
    % get the EC guillemets, and with `cyr,' you get the cyrillic guillemets.
    %
    % In verbatim mode, you always get the EC/TT guillemets.
    %
    % The default option is interesting in conjunction with PDF,
    % because there is a Type 1 version of the Polish CMR fonts
    % and these guillemets are very close in shape to the EC guillemets.
    % There are no free Type 1 versions of the EC fonts.
    %
    % Support for Polish CMR guillemets was kindly provided by 
    % Rolf Niepraschk <niepraschk@ptb.de> in version 0.99 (2000/05/22).
    % Bernd Raichle provided extensive simplifications to the code
    % for version 1.00.
    %
    % This package is released under the LPPL.
    %
    % Changes:
    %   Date        version
    %   2001/04/12  1.01    the frenchle and french package are now distinguished.
    %
    \def\fileversion{1.01}
    \def\filedate{2001/04/12}
    \NeedsTeXFormat{LaTeX2e}
    %\ProvidesPackage{aeguill}[2001/04/12 1.01 %    % GM
    %AE fonts with french guillemets (D. Roegel)]   % GM - keeping the log file clean(er)
    %\RequirePackage{ae}  % GM May 2007 - already embedded here
     
    \newcommand{\@ae@switch}[4]{#4}
    \DeclareOption{ec}{\renewcommand\@ae@switch[4]{#1}}
    \DeclareOption{cm}{\renewcommand\@ae@switch[4]{#2}}
    \DeclareOption{cyr}{\renewcommand\@ae@switch[4]{#3}}
    \DeclareOption{pl}{\renewcommand\@ae@switch[4]{#4}}
    \ExecuteOptions{pl}
    \ProcessOptions
     
    %
    % Load necessary packages
    %
    \@ae@switch{% ec
      % do nothing
    }{% cm
      \RequirePackage{latexsym}%  GM - May 2007 - already 'mentioned as required' up above
    }{% cyr
      \RequirePackage[OT2,T1]{fontenc}%
    }{% pl
      \RequirePackage[OT4,T1]{fontenc}%
    }
     
    % The following command will be compared to \frenchname,
    % as defined in french.sty and frenchle.sty.
    \def\aeguillfrenchdefault{french}%
     
    \let\guill@verbatim@font\verbatim@font
    \def\verbatim@font{\guill@verbatim@font\ecguills{cmtt}%
                       \let\guillemotleft\@oguills\let\guillemotright\@fguills}
     
    \begingroup \catcode`\<=13 \catcode`\>=13
    \def\x{\endgroup
     \def\ae@lfguill{<<}%
     \def\ae@rfguill{>>}%
    }\x
     
    \newcommand{\ecguills}[1]{%
      \def\selectguillfont{\fontencoding{T1}\fontfamily{#1}\selectfont}%
      \def\@oguills{{\selectguillfont\symbol{19}}}%
      \def\@fguills{{\selectguillfont\symbol{20}}}%
      } 
     
    \newcommand{\aeguills}{%
      \ae@guills
      % We redefine \guillemotleft and \guillemotright
      % in order to catch them when they are used 
      % with \DeclareInputText (in latin1.def for instance)
      % We use \auxWARNINGi as a safe indicator that french.sty is used.
      \gdef\guillemotleft{\ifx\auxWARNINGi\undefined
                             \@oguills % neither french.sty nor frenchle.sty
                          \else
                             \ifx\aeguillfrenchdefault\frenchname
                               \ae@lfguill  % french.sty
                             \else
                               \@oguills    % frenchle.sty
                             \fi
                          \fi}%
      \gdef\guillemotright{\ifx\auxWARNINGi\undefined
                             \@fguills % neither french.sty nor frenchle.sty
                           \else
                             \ifx\aeguillfrenchdefault\frenchname
                               \ae@rfguill  % french.sty
                             \else
                               \@fguills    % frenchle.sty
                             \fi
                           \fi}%
      }
     
    %
    % Depending on the class option
    % define the internal command \ae@guills
    \@ae@switch{% ec
      \newcommand{\ae@guills}{%
        \ecguills{cmr}}%
    }{% cm
      \newcommand{\ae@guills}{%
        \def\selectguillfont{\fontencoding{U}\fontfamily{lasy}%
                \fontseries{m}\fontshape{n}\selectfont}%
        \def\@oguills{\leavevmode\nobreak
                    \hbox{\selectguillfont (\kern-.20em(\kern.20em}\nobreak}%
        \def\@fguills{\leavevmode\nobreak
                    \hbox{\selectguillfont \kern.20em)\kern-.2em)}%
                    \ifdim\fontdimen\@ne\font>\z@\/\fi}}%
    }{% cyr
      \newcommand{\ae@guills}{%
        \def\selectguillfont{\fontencoding{OT2}\fontfamily{wncyr}\selectfont}%
        \def\@oguills{{\selectguillfont\symbol{60}}}%
        \def\@fguills{{\selectguillfont\symbol{62}}}}
    }{% pl
      \newcommand{\ae@guills}{%
        \def\selectguillfont{\fontencoding{OT4}\fontfamily{cmr}\selectfont}%
        \def\@oguills{{\selectguillfont\symbol{174}}}%
        \def\@fguills{{\selectguillfont\symbol{175}}}}
    }
     
     
    \AtBeginDocument{%
      \ifx\GOfrench\undefined
        \aeguills
      \else
        \let\aeguill@GOfrench\GOfrench
        \gdef\GOfrench{\aeguill@GOfrench \aeguills}%
      \fi
      }
     
    \endinput
    %
    %13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19
    March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009
    (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26,
    19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March
    2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009
    (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26, 19 March 2009 (EDT)13:26,
    19 March 2009 (EDT)[[User:Baojie|Baojie]] 13:26, 19 March 2009 (EDT)
    %\end{latex}
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