% \iffalse meta-comment%% Copyright 1995 the CHI96 commitee and any individual authors% listed elsewhere in this file.  All rights reserved.%% For further copyright information see the file legal.txt, and any% other copyright notices in this file.%% This package is distributed in the hope that it will be useful,% but WITHOUT ANY WARRANTY; without even the implied warranty of% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.%% For error reports concerning UNCHANGED versions of this file no more% than one year old, see bugs.txt.%% Please do not request updates from us directly.  Primary% distribution is through the CTAN archives.%%% IMPORTANT COPYRIGHT NOTICE:%% You are NOT ALLOWED to distribute this file alone.% You are NOT ALLOWED to distribute this file alone.%% You are allowed to distribute this file under the condition that it is% distributed together with all the files listed in manifest.txt.%% If you receive only some of these files from someone, complain!%% Permission is granted to copy this file to another file with a clearly% different name and to customize the declarations in that copy to serve% the needs of your installation, provided that you comply with% the conditions in the file legal.txt.%% However, NO PERMISSION is granted to produce or to distribute a% modified version of this file under its original name.%% You are NOT ALLOWED to change this file.%%% \fi% \CheckSum{144}%% \CharacterTable%%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z%%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z%%   Digits        \0\1\2\3\4\5\6\7\8\9%%   Exclamation   \!     Double quote  \"     Hash (number) \#%%   Dollar        \$     Percent       \%     Ampersand     \&%%   Acute accent  \'     Left paren    \(     Right paren   \)%%   Asterisk      \*     Plus          \+     Comma         \,%%   Minus         \-     Point         \.     Solidus       \/%%   Colon         \:     Semicolon     \;     Less than     \<%%   Equals        \=     Greater than  \>     Question mark \?%%   Commercial at \@     Left bracket  \[     Backslash     \\%%   Right bracket \]     Circumflex    \^     Underscore    \_%%   Grave accent  \`     Left brace    \{     Vertical bar  \|%%   Right brace   \}     Tilde         \~}%% \iffalse\NeedsTeXFormat{LaTeX2e}[1995/06/01]%<*dtx>\ProvidesFile{chi96.dtx}%</dtx>%<driver>\ProvidesFile{chi96.drv}%<chi96>\ProvidesClass{chi96}%<*chi96|dtx>              [1995/11/14 1.1 CHI 96%</chi96|dtx>%<chi96>                       document class]%<*driver>              documentation]\newcommand*{\Lopt}[1]{\textsf {#1}}\newcommand*{\BibTeX}{{\rm B\kern-.05em{\sc i\kern-.025em b}\kern-.08em\TeX}}\documentclass{ltxdoc}\begin{document} \DocInput{chi96.dtx}\end{document}%</driver>% \fi%% \GetFileInfo{chi96.dtx}%% \title{Package `chi96' for \LaTeXe\thanks{This%    file has version number \fileversion, last revised \filedate.}}%% \author{%% Copyright (C) 1995 by Thomas Schulze% }% \date{\filedate}% \maketitle% \tableofcontents%% \StopEventually{}    ^^A%% \section{Abstract}%    Most of this file is a variation of the standard document class%    |article|.%    Altogether it implements a class which%    meets the formatting requirements for CHI 96. It is%    strongly advised to be used whenever an author wants to send%    his/her work as a submission to CHI 96. This documentation%    does \textit{not} follow these guidelines, it is conformant to%    standard \LaTeXe{} documentation. See the enclosed file%    \texttt{96pubsf.tex} for an example of a CHI 96 formatted document.%%    Note: We do not provide a conforming \BibTeX{} style file. We really%    think its not worth the time. Use the |thebibliography| environment%    for your (probably and/or hopefully) short bibliography.%%    Another note: Currently we have no method for automatic placement%    of the copyright box (the last 2.5cm of the left column on the first%    page). Look into the example file, we implemented it with a%    carefully placed |\vspace*{2.5cm}| command. A possible solution%    is beeing thought of and will maybe included in the next%    version.%% \section{Declaration of Options}%%  \subsection{Multicols option}%%    The option \Lopt{multicols} controls wether we use the \textit{multicols}%    package to get balanced columns but with some problems with the%    |title|-command. When not given we use plain old |twocolumn| as%    an option to the underlying |article|-class. This can not balance%    the columns on the last page.%    \begin{macrocode}\newif\if@multicols\@multicolsfalse\DeclareOption{multicols}{ \@multicolstrue}%    \end{macrocode} %%  \subsection{Psfonts option}%%    The option \Lopt{psfonts} tries to use Postscript fonts. As specified%    in |96pubsf| plain text shall be typeset using the font~\textit{Times}%    or \textit{Times New Roman}. %    \begin{macrocode}\newif\if@psfonts\@psfontsfalse%\DeclareOption{psfonts}{ \@psfontstrue}%    \end{macrocode}%%  \subsection{Font sizes}%%    CHI 96 requires conforming articles to be written in a 10pt font.%    We don't want the author to override it, so we just spit out a%    message and ignore the offending font size command.%    \begin{macrocode}\DeclareOption{11pt}{\ClassWarning{chi96}{%  CHI 96 does not allow the use of fonts in size 11pt.\MessageBreak  We will continue with size 10pt.}}\DeclareOption{12pt}{\ClassWarning{chi96}{%  CHI 96 does not allow the use of fonts in size 12pt.\MessageBreak  We will continue with size 10pt.}}%    \end{macrocode}%%  \subsection{Titlepage}%%    We do not permit the optional separat \Lopt{titlepage} of the%    article class. So, we issue a warning and ignore the request.%    \begin{macrocode}\DeclareOption{titlepage}{\Classwarning{chi96}{%  CHI 96 does not allow the use of a separate titlepage.\MessageBreak  We will ignore your request.}}%    \end{macrocode}%%  \subsection{Other options}%%    Every other option will be passed to our parent class, |article|.%    This \textit{may} not be the right behaviour for every option.%    If you encounter problems or if an option disagrees with CHI~96%    guidelines, please send me a message.%    \begin{macrocode}\DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}}%    \end{macrocode}%% \section{Execution of Options}%%    Here we execute the default options to initialize certain%    variables. Note for Europeans and other people outside%    US: Its perfectly legal to use A4 paper or something else.%    We take care for the position of your text on the physical%    paper, so go ahead, use A4 (even A3 could be used).%    \begin{macrocode}\ExecuteOptions{letterpaper,final}%    \end{macrocode}%%    Now we are ready to process the users option.%    The |\ProcessOptions| command causes the execution of the code%    for every option \Lopt{FOO} which is declared and for which the user typed%    the \Lopt{FOO} option in his |\documentclass| command.%    For every option \Lopt{BAR} he typed,%    which is not declared, the option is assumed to be a global option.%    \begin{macrocode}\ProcessOptions%    \end{macrocode}%%  \section{Loading Classes}%%    The CHI 96 class is derived from the \LaTeXe{} standard class%    |article|. We load it after all options are processed to%    let it take use of the other options. And of course, we modify%    certain things to match the required layout.%    \begin{macrocode}\if@multicols \LoadClass[10pt]{article}\else \LoadClass[10pt,twocolumn]{article}\fi%    \end{macrocode}%%  \section{Loading Packages}%%    The CHI 96 formatting guidelines suggest a twocolumn format with%    balanced paragraphs. So we may need the presence of the package%    |multicol|, which will do that job automagically. We use it%    automagically by using the document hooks for switching multi%    columns on or off. This is a sub-optimal solution. Note: You have to%    specify the |\title| and |\author| in the preamble of your file.%    The |\date| command is ignored, anyway.%    \begin{macrocode}\if@multicols \RequirePackage{multicol} \AtBeginDocument{\maketitle\begin{multicols}{2}} \AtEndDocument{\end{multicols}}\fi%    \end{macrocode}%%    If the user requested the use of Postscript fonts we load the |times|%    package.%    \begin{macrocode}\if@psfonts \RequirePackage{times}\fi