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% \iffalse meta-comment
%
% Copyright (C) 2007 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3 of this license or (at your option) any later
% version. The latest version of this license is in
%    http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of
% LaTeX version 2005/12/01 or later.
%
% This work has the LPPL maintenance status "maintained".
%
% This Current Maintainer of this work is Heiko Oberdiek.
%
% This work consists of the main source file pdfcolparallel.dtx
% and the derived files
%    pdfcolparallel.sty, pdfcolparallel.pdf, pdfcolparallel.ins, pdfcolparallel.drv,
%    pdfcolparallel-test1.tex.
%
% Distribution:
%    CTAN:macros/latex/contrib/oberdiek/pdfcolparallel.dtx
%    CTAN:macros/latex/contrib/oberdiek/pdfcolparallel.pdf
%
% Unpacking:
%    (a) If pdfcolparallel.ins is present:
%           tex pdfcolparallel.ins
%    (b) Without pdfcolparallel.ins:
%           tex pdfcolparallel.dtx
%    (c) If you insist on using LaTeX
%           latex \let\install=y\input{pdfcolparallel.dtx}
%        (quote the arguments according to the demands of your shell)
%
% Documentation:
%    (a) If pdfcolparallel.drv is present:
%           latex pdfcolparallel.drv
%    (b) Without pdfcolparallel.drv:
%           latex pdfcolparallel.dtx; ...
%    The class ltxdoc loads the configuration file ltxdoc.cfg
%    if available. Here you can specify further options, e.g.
%    use A4 as paper format:
%       \PassOptionsToClass{a4paper}{article}
%
%    Programm calls to get the documentation (example):
%       pdflatex pdfcolparallel.dtx
%       makeindex -s gind.ist pdfcolparallel.idx
%       pdflatex pdfcolparallel.dtx
%       makeindex -s gind.ist pdfcolparallel.idx
%       pdflatex pdfcolparallel.dtx
%
% Installation:
%    TDS:tex/latex/oberdiek/pdfcolparallel.sty
%    TDS:doc/latex/oberdiek/pdfcolparallel.pdf
%    TDS:doc/latex/oberdiek/pdfcolparallel-test1.tex
%    TDS:source/latex/oberdiek/pdfcolparallel.dtx
%
%<*ignore>
\begingroup
  \def\x{LaTeX2e}%
\expandafter\endgroup
\ifcase 0\ifx\install y1\fi\expandafter
         \ifx\csname processbatchFile\endcsname\relax\else1\fi
         \ifx\fmtname\x\else 1\fi\relax
\else\csname fi\endcsname
%</ignore>
%<*install>
\input docstrip.tex
\Msg{************************************************************************}
\Msg{* Installation}
\Msg{* Package: pdfcolparallel 2007/09/09 v1.0 Color stacks support for parallel (HO)}
\Msg{************************************************************************}

\keepsilent
\askforoverwritefalse

\preamble

This is a generated file.

Copyright (C) 2007 by Heiko Oberdiek <oberdiek@uni-freiburg.de>

This work may be distributed and/or modified under the
conditions of the LaTeX Project Public License, either
version 1.3 of this license or (at your option) any later
version. The latest version of this license is in
   http://www.latex-project.org/lppl.txt
and version 1.3 or later is part of all distributions of
LaTeX version 2005/12/01 or later.

This work has the LPPL maintenance status "maintained".

This Current Maintainer of this work is Heiko Oberdiek.

This work consists of the main source file pdfcolparallel.dtx
and the derived files
   pdfcolparallel.sty, pdfcolparallel.pdf, pdfcolparallel.ins, pdfcolparallel.drv,
   pdfcolparallel-test1.tex.

\endpreamble

\generate{%
  \file{pdfcolparallel.ins}{\from{pdfcolparallel.dtx}{install}}%
  \file{pdfcolparallel.drv}{\from{pdfcolparallel.dtx}{driver}}%
  \usedir{tex/latex/oberdiek}%
  \file{pdfcolparallel.sty}{\from{pdfcolparallel.dtx}{package}}%
  \usedir{doc/latex/oberdiek}%
  \file{pdfcolparallel-test1.tex}{\from{pdfcolparallel.dtx}{test1}}%
}

\obeyspaces
\Msg{************************************************************************}
\Msg{*}
\Msg{* To finish the installation you have to move the following}
\Msg{* file into a directory searched by TeX:}
\Msg{*}
\Msg{*     pdfcolparallel.sty}
\Msg{*}
\Msg{* To produce the documentation run the file `pdfcolparallel.drv'}
\Msg{* through LaTeX.}
\Msg{*}
\Msg{* Happy TeXing!}
\Msg{*}
\Msg{************************************************************************}

\endbatchfile
%</install>
%<*ignore>
\fi
%</ignore>
%<*driver>
\NeedsTeXFormat{LaTeX2e}
\ProvidesFile{pdfcolparallel.drv}%
  [2007/09/09 v1.0 Color stacks support for parallel (HO)]%
\documentclass{ltxdoc}
\usepackage{holtxdoc}
\begin{document}
  \DocInput{pdfcolparallel.dtx}%
\end{document}
%</driver>
% \fi
%
% \CheckSum{582}
%
% \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         \~}
%
% \GetFileInfo{pdfcolparallel.drv}
%
% \title{The \xpackage{pdfcolparallel} package}
% \date{2007/09/09 v1.0}
% \author{Heiko Oberdiek\\\xemail{oberdiek@uni-freiburg.de}}
%
% \maketitle
%
% \begin{abstract}
% Since version 1.40 \pdfTeX\ supports several color stacks.
% This package uses them to fix color problems in
% package \xpackage{parallel}.
% \end{abstract}
%
% \tableofcontents
%
% \section{Usage}
%
% \begin{quote}
% |\usepackage{pdfcolparallel}|
% \end{quote}
% The package \xpackage{pdfcolparallel} loads package \xpackage{parallel}
% \cite{parallel}. If color stacks are available then the
% macros of \xpackage{parallel} are patched to add support
% for color stacks.
%
% \subsection{Future}
%
% If there will be a new version of package \xpackage{parallel}
% that adds support for color stacks, then this package may become
% obsolete.
%
% \StopEventually{
% }
%
% \section{Implementation}
%
% \subsection{Identification}
%
%    \begin{macrocode}
%<*package>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{pdfcolparallel}%
  [2007/09/09 v1.0 Color stacks support for parallel (HO)]%
%    \end{macrocode}
%
% \subsection{Load packages}
%
% \subsubsection{Package \xpackage{parallel}}
%
%    Package \xpackage{parallel} is loaded. Before options of package
%    \xpackage{pdfcolparallel} are passed to package \xpackage{parallel}.
%    \begin{macrocode}
\DeclareOption*{%
  \PassoptionsToPackage{\CurrentOption}{parallel}%
}
\ProcessOptions\relax
\RequirePackage{parallel}[2003/04/13]
%    \end{macrocode}
%
% \subsubsection{Package \xpackage{pdfcol}}
%
%    \begin{macrocode}
\RequirePackage{pdfcol}[2007/09/09]
\ifpdfcolAvailable
\else
  \PackageInfo{pdfcolparallel}{%
    Loading aborted, because color stacks are not available%
  }%
  \expandafter\endinput
\fi
%    \end{macrocode}
%
% \subsubsection{Package \xpackage{infwarerr}}
%
%    \begin{macrocode}
\RequirePackage{infwarerr}[2007/09/09]
%    \end{macrocode}
%
% \subsection{Color stack macros}
%
%    \begin{macrocode}
\pdfcolInitStack{pcp@Left}
\pdfcolInitStack{pcp@Right}
%    \end{macrocode}
%    \begin{macro}{\pcp@SwitchStack}
%    \begin{macrocode}
\def\pcp@SwitchStack#1{%
  \pdfcolSwitchStack{pcp@#1}%
}
%    \end{macrocode}
%    \end{macro}
%    \begin{macro}{\pcp@SetCurrent}
%    \begin{macrocode}
\def\pcp@SetCurrent#1{%
  \ifx\\#1\\%
    \pdfcolSetCurrent{}%
  \else
    \pdfcolSetCurrent{pcp@#1}%
  \fi
}
%    \end{macrocode}
%    \end{macro}
%
% \subsection{Redefinitions}
%
%    \begin{macro}{\pcp@CmdCheckRedef}
%    \begin{macrocode}
\def\pcp@CmdCheckRedef#1{%
  \begingroup
    \def\pcp@cmd{#1}%
    \afterassignment\pcp@CmdDo
    \long\def\reserved@a
}
\def\pcp@CmdDo{%
    \expandafter\ifx\pcp@cmd\reserved@a
    \else
      \edef\x*{\expandafter\string\pcp@cmd}%
      \@PackageWarningNoLine{pdfcolparallel}{%
        Command \x* has changed.\MessageBreak
        Supported versions of package `parallel':\MessageBreak
        \space\space 2003/04/13\MessageBreak
        The redefinition of \x* may\MessageBreak
        not behave correctly depending on the changes%
      }%
    \fi
  \expandafter\endgroup
  \expandafter\def\pcp@cmd
}
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\ParallelLText}
%    \begin{macrocode}
\pcp@CmdCheckRedef\ParallelLText{%
  \everypar{}%
  \@restorepar
  \begingroup
    \hbadness=3000 %
    \let\footnote=\ParallelLFootnote
    \ParallelWhichBox=0 %
    \global\setbox\ParallelLBox=\vbox\bgroup
      \hsize=\ParallelLWidth
      \aftergroup\ParallelAfterText
      \begingroup
        \afterassignment\ParallelCheckOpenBrace
        \let\x=%
}{%
  \everypar{}%
  \@restorepar
  \begingroup
    \hbadness=3000 %
    \let\footnote=\ParallelLFootnote
    \ParallelWhichBox=0 %
    \global\setbox\ParallelLBox=\vbox\bgroup
      \hsize=\ParallelLWidth
      \pcp@SwitchStack{Left}%
      \aftergroup\ParallelAfterText
      \begingroup
        \afterassignment\ParallelCheckOpenBrace
        \let\x=%
}
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\ParallelRText}
%    \begin{macrocode}
\pcp@CmdCheckRedef\ParallelRText{%
  \everypar{}%
  \@restorepar
  \begingroup
    \hbadness=3000 %
    \ifnum\ParallelFNMode=\@ne
      \let\footnote=\ParallelRFootnote
    \else
      \let\footnote=\ParallelLFootnote
    \fi
    \ParallelWhichBox=\@ne
    \global\setbox\ParallelRBox=\vbox\bgroup
      \hsize=\ParallelRWidth
      \aftergroup\ParallelAfterText
      \begingroup
        \afterassignment\ParallelCheckOpenBrace
        \let\x=%
}{%
  \everypar{}%
  \@restorepar
  \begingroup
    \hbadness=3000 %
    \ifnum\ParallelFNMode=\@ne
      \let\footnote=\ParallelRFootnote
    \else
      \let\footnote=\ParallelLFootnote
    \fi
    \ParallelWhichBox=\@ne
    \global\setbox\ParallelRBox=\vbox\bgroup
      \hsize=\ParallelRWidth
      \pcp@SwitchStack{Right}%
      \aftergroup\ParallelAfterText
      \begingroup
        \afterassignment\ParallelCheckOpenBrace
        \let\x=%
}
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\ParallelParOnePage}
%    \begin{macrocode}
\pcp@CmdCheckRedef\ParallelParOnePage{%
  \ifnum\ParallelBoolVar=\@ne
    \par
    \begingroup
      \leftmargin=\z@
      \rightmargin=\z@
      \parskip=\z@skip
      \parindent=\z@
      \vbadness=10000 %
      \vfuzz=3ex %
      \splittopskip=\z@skip
      \loop
        \ifnum\ParallelBoolVar=\@ne
          \noindent
          \hbox to\textwidth{%
            \hskip\ParallelLeftMargin
            \hbox to\ParallelTextWidth{%
              \ifvoid\ParallelLBox
                \hskip\ParallelLWidth
              \else
                \ParallelWhichBox=\z@
                \vbox{%
                  \setbox\ParallelBoxVar
                      =\vsplit\ParallelLBox to\dp\strutbox
                  \unvbox\ParallelBoxVar
                }%
              \fi
              \strut
              \ifnum\ParallelBoolMid=\@ne
                \hskip\ParallelMainMidSkip
                \vrule
              \else
                \hss
              \fi
              \hss
              \ifvoid\ParallelRBox
                \hskip\ParallelRWidth
              \else
                \ParallelWhichBox=\@ne
                \vbox{%
                  \setbox\ParallelBoxVar
                      =\vsplit\ParallelRBox to\dp\strutbox
                  \unvbox\ParallelBoxVar
                }%
              \fi
            }%
          }%
          \ifvoid\ParallelLBox
            \ifvoid\ParallelRBox
              \global\ParallelBoolVar=\z@
            \fi
          \fi%
        \fi%
      \ifnum\ParallelBoolVar=\@ne
        \penalty\interlinepenalty
      \repeat
      \par
    \endgroup
  \fi
}{%
  \ifnum\ParallelBoolVar=\@ne
    \par
    \begingroup
      \leftmargin=\z@
      \rightmargin=\z@
      \parskip=\z@skip
      \parindent=\z@
      \vbadness=10000 %
      \vfuzz=3ex %
      \splittopskip=\z@skip
      \loop
        \ifnum\ParallelBoolVar=\@ne
          \noindent
          \hbox to\textwidth{%
            \hskip\ParallelLeftMargin
            \hbox to\ParallelTextWidth{%
              \ifvoid\ParallelLBox
                \hskip\ParallelLWidth
              \else
                \pcp@SetCurrent{Left}%
                \ParallelWhichBox=\z@
                \vbox{%
                  \setbox\ParallelBoxVar
                      =\vsplit\ParallelLBox to\dp\strutbox
                  \unvbox\ParallelBoxVar
                }%
              \fi
              \strut
              \ifnum\ParallelBoolMid=\@ne
                \hskip\ParallelMainMidSkip
                \vrule
              \else
                \hss
              \fi
              \hss
              \ifvoid\ParallelRBox
                \hskip\ParallelRWidth
              \else
                \pcp@SetCurrent{Right}%
                \ParallelWhichBox=\@ne
                \vbox{%
                  \setbox\ParallelBoxVar
                      =\vsplit\ParallelRBox to\dp\strutbox
                  \unvbox\ParallelBoxVar
                }%
              \fi
            }%
          }%
          \ifvoid\ParallelLBox
            \ifvoid\ParallelRBox
              \global\ParallelBoolVar=\z@
            \fi
          \fi%
        \fi%
      \ifnum\ParallelBoolVar=\@ne
        \penalty\interlinepenalty
      \repeat
      \par
    \endgroup
    \pcp@SetCurrent{}%
  \fi
}
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\ParallelParTwoPages}
%    \begin{macrocode}
\pcp@CmdCheckRedef\ParallelParTwoPages{%
  \ifnum\ParallelBoolVar=\@ne
    \par
    \begingroup
      \global\ParallelWhichBox=\@ne
      \newpage
      \vbadness=10000 %
      \vfuzz=3ex %
      \splittopskip=\z@skip
      \loop%
        \ifnum\ParallelBoolVar=\@ne%
          \ifnum\ParallelWhichBox=\@ne
            \ifvoid\ParallelLBox
              \mbox{} %
              \newpage
            \else
              \global\ParallelWhichBox=\z@
            \fi
          \else
            \ifvoid\ParallelRBox
              \mbox{} %
              \newpage
            \else
              \global\ParallelWhichBox=\@ne
            \fi
          \fi
          \ifnum\ParallelWhichBox=\z@
            \ifodd\thepage
              \mbox{} %
              \newpage
            \fi
            \hbox to\textwidth{%
              \vbox{\vsplit\ParallelLBox to.98\textheight}%
            }%
          \else
            \ifodd\thepage\relax
            \else
              \mbox{} %
              \newpage
            \fi
            \hbox to\textwidth{%
              \vbox{\vsplit\ParallelRBox to.98\textheight}%
            }%
          \fi
          \vspace*{\fill}%
          \newpage
        \fi
        \ifvoid\ParallelLBox
          \ifvoid\ParallelRBox
            \global\ParallelBoolVar=\z@
          \fi
        \fi
      \ifnum\ParallelBoolVar=\@ne
      \repeat
      \par
    \endgroup
  \fi
}{%
%    \end{macrocode}
%    Additional fixes:
%    \begin{itemize}
%    \item Unnecessary white space removed.
%    \item |\ifodd\thepage| changed to |\ifodd\value{page}|.
%    \end{itemize}
%    \begin{macrocode}
  \ifnum\ParallelBoolVar=\@ne
    \par
    \begingroup
      \global\ParallelWhichBox=\@ne
      \newpage
      \vbadness=10000 %
      \vfuzz=3ex %
      \splittopskip=\z@skip
      \loop%
        \ifnum\ParallelBoolVar=\@ne%
          \ifnum\ParallelWhichBox=\@ne
            \ifvoid\ParallelLBox
              \mbox{}%
              \newpage
            \else
              \global\ParallelWhichBox=\z@
            \fi
          \else
            \ifvoid\ParallelRBox
              \mbox{}%
              \newpage
            \else
              \global\ParallelWhichBox=\@ne
            \fi
          \fi
          \ifnum\ParallelWhichBox=\z@
            \ifodd\value{page}%
              \mbox{}%
              \newpage
            \fi
            \hbox to\textwidth{%
              \pcp@SetCurrent{Left}%
              \vbox{\vsplit\ParallelLBox to.98\textheight}%
            }%
          \else
            \ifodd\value{page}%
            \else
              \mbox{}%
              \newpage
            \fi
            \hbox to\textwidth{%
              \pcp@SetCurrent{Right}%
              \vbox{\vsplit\ParallelRBox to.98\textheight}%
            }%
          \fi
          \vspace*{\fill}%
          \newpage
        \fi
        \ifvoid\ParallelLBox
          \ifvoid\ParallelRBox
            \global\ParallelBoolVar=\z@
          \fi
        \fi
      \ifnum\ParallelBoolVar=\@ne
      \repeat
      \par
    \endgroup
    \pcp@SetCurrent{}%
  \fi
}
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macrocode}
%</package>
%    \end{macrocode}
%
% \section{Test}
%
%    The test file is a modified version of the file that
%    Alexander Hirsch has posted in \xnewsgroup{de.comp.text.tex}.
%    \begin{macrocode}
%<*test1>
\AtEndDocument{%
  \typeout{}%
  \typeout{**************************************}%
  \typeout{*** \space Check the PDF file manually! \space ***}%
  \typeout{**************************************}%
  \typeout{}%
}
\documentclass{article}
\usepackage{xcolor}
\usepackage{pdfcolparallel}[2007/09/09]

\begin{document}
  \color{green}%
  Green%
  \begin{Parallel}{0.47\textwidth}{0.47\textwidth}%
    \ParallelLText{%
      \textcolor{red}{%
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll. %
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll.%
      }%
    }%
    \ParallelRText{%
      \textcolor{blue}{%
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll. %
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll.%
      }%
    }%
  \end{Parallel}%
  Green%
  \begin{Parallel}[p]{\textwidth}{\textwidth}%
    \ParallelLText{%
      \textcolor{red}{%
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll. %
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll. %
        Foo bar bla bla bla.%
      }%
    }%
    \ParallelRText{%
      \textcolor{blue}{%
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll. %
        Ein Absatz, der sich ueber zwei Zeilen erstrecken soll. %
        Foo bar bla bla bla.%
      }%
    }%
  \end{Parallel}%
  Green%
\end{document}
%</test1>
%    \end{macrocode}
%
% \section{Installation}
%
% \subsection{Download}
%
% \paragraph{Package.} This package is available on
% CTAN\footnote{\url{ftp://ftp.ctan.org/tex-archive/}}:
% \begin{description}
% \item[\CTAN{macros/latex/contrib/oberdiek/pdfcolparallel.dtx}] The source file.
% \item[\CTAN{macros/latex/contrib/oberdiek/pdfcolparallel.pdf}] Documentation.
% \end{description}
%
%
% \paragraph{Bundle.} All the packages of the bundle `oberdiek'
% are also available in a TDS compliant ZIP archive. There
% the packages are already unpacked and the documentation files
% are generated. The files and directories obey the TDS standard.
% \begin{description}
% \item[\CTAN{macros/latex/contrib/oberdiek/oberdiek-tds.zip}]
% \end{description}
% \emph{TDS} refers to the standard ``A Directory Structure
% for \TeX\ Files'' (\CTAN{tds/tds.pdf}). Directories
% with \xfile{texmf} in their name are usually organized this way.
%
% \subsection{Bundle installation}
%
% \paragraph{Unpacking.} Unpack the \xfile{oberdiek-tds.zip} in the
% TDS tree (also known as \xfile{texmf} tree) of your choice.
% Example (linux):
% \begin{quote}
%   |unzip oberdiek-tds.zip -d ~/texmf|
% \end{quote}
%
% \paragraph{Script installation.}
% Check the directory \xfile{TDS:scripts/oberdiek/} for
% scripts that need further installation steps.
% Package \xpackage{attachfile2} comes with the Perl script
% \xfile{pdfatfi.pl} that should be installed in such a way
% that it can be called as \texttt{pdfatfi}.
% Example (linux):
% \begin{quote}
%   |chmod +x scripts/oberdiek/pdfatfi.pl|\\
%   |cp scripts/oberdiek/pdfatfi.pl /usr/local/bin/|
% \end{quote}
%
% \subsection{Package installation}
%
% \paragraph{Unpacking.} The \xfile{.dtx} file is a self-extracting
% \docstrip\ archive. The files are extracted by running the
% \xfile{.dtx} through \plainTeX:
% \begin{quote}
%   \verb|tex pdfcolparallel.dtx|
% \end{quote}
%
% \paragraph{TDS.} Now the different files must be moved into
% the different directories in your installation TDS tree
% (also known as \xfile{texmf} tree):
% \begin{quote}
% \def\t{^^A
% \begin{tabular}{@{}>{\ttfamily}l@{ $\rightarrow$ }>{\ttfamily}l@{}}
%   pdfcolparallel.sty & tex/latex/oberdiek/pdfcolparallel.sty\\
%   pdfcolparallel.pdf & doc/latex/oberdiek/pdfcolparallel.pdf\\
%   pdfcolparallel-test1.tex & doc/latex/oberdiek/pdfcolparallel-test1.tex\\
%   pdfcolparallel.dtx & source/latex/oberdiek/pdfcolparallel.dtx\\
% \end{tabular}^^A
% }^^A
% \sbox0{\t}^^A
% \ifdim\wd0>\linewidth
%   \begingroup
%     \advance\linewidth by\leftmargin
%     \advance\linewidth by\rightmargin
%   \edef\x{\endgroup
%     \def\noexpand\lw{\the\linewidth}^^A
%   }\x
%   \def\lwbox{^^A
%     \leavevmode
%     \hbox to \linewidth{^^A
%       \kern-\leftmargin\relax
%       \hss
%       \usebox0
%       \hss
%       \kern-\rightmargin\relax
%     }^^A
%   }^^A
%   \ifdim\wd0>\lw
%     \sbox0{\small\t}^^A
%     \ifdim\wd0>\linewidth
%       \ifdim\wd0>\lw
%         \sbox0{\footnotesize\t}^^A
%         \ifdim\wd0>\linewidth
%           \ifdim\wd0>\lw
%             \sbox0{\scriptsize\t}^^A
%             \ifdim\wd0>\linewidth
%               \ifdim\wd0>\lw
%                 \sbox0{\tiny\t}^^A
%                 \ifdim\wd0>\linewidth
%                   \lwbox
%                 \else
%                   \usebox0
%                 \fi
%               \else
%                 \lwbox
%               \fi
%             \else
%               \usebox0
%             \fi
%           \else
%             \lwbox
%           \fi
%         \else
%           \usebox0
%         \fi
%       \else
%         \lwbox
%       \fi
%     \else
%       \usebox0
%     \fi
%   \else
%     \lwbox
%   \fi
% \else
%   \usebox0
% \fi
% \end{quote}
% If you have a \xfile{docstrip.cfg} that configures and enables \docstrip's
% TDS installing feature, then some files can already be in the right
% place, see the documentation of \docstrip.
%
% \subsection{Refresh file name databases}
%
% If your \TeX~distribution
% (\teTeX, \mikTeX, \dots) relies on file name databases, you must refresh
% these. For example, \teTeX\ users run \verb|texhash| or
% \verb|mktexlsr|.
%
% \subsection{Some details for the interested}
%
% \paragraph{Attached source.}
%
% The PDF documentation on CTAN also includes the
% \xfile{.dtx} source file. It can be extracted by
% AcrobatReader 6 or higher. Another option is \textsf{pdftk},
% e.g. unpack the file into the current directory:
% \begin{quote}
%   \verb|pdftk pdfcolparallel.pdf unpack_files output .|
% \end{quote}
%
% \paragraph{Unpacking with \LaTeX.}
% The \xfile{.dtx} chooses its action depending on the format:
% \begin{description}
% \item[\plainTeX:] Run \docstrip\ and extract the files.
% \item[\LaTeX:] Generate the documentation.
% \end{description}
% If you insist on using \LaTeX\ for \docstrip\ (really,
% \docstrip\ does not need \LaTeX), then inform the autodetect routine
% about your intention:
% \begin{quote}
%   \verb|latex \let\install=y\input{pdfcolparallel.dtx}|
% \end{quote}
% Do not forget to quote the argument according to the demands
% of your shell.
%
% \paragraph{Generating the documentation.}
% You can use both the \xfile{.dtx} or the \xfile{.drv} to generate
% the documentation. The process can be configured by the
% configuration file \xfile{ltxdoc.cfg}. For instance, put this
% line into this file, if you want to have A4 as paper format:
% \begin{quote}
%   \verb|\PassOptionsToClass{a4paper}{article}|
% \end{quote}
% An example follows how to generate the
% documentation with pdf\LaTeX:
% \begin{quote}
%\begin{verbatim}
%pdflatex pdfcolparallel.dtx
%makeindex -s gind.ist pdfcolparallel.idx
%pdflatex pdfcolparallel.dtx
%makeindex -s gind.ist pdfcolparallel.idx
%pdflatex pdfcolparallel.dtx
%\end{verbatim}
% \end{quote}
%
% \begin{thebibliography}{9}
%
% \bibitem{parallel}
%   Matthias Eckermann: \textit{The \xpackage{parallel}-package};
%   2003/04/13;\\
%   \CTAN{macros/latex/contrib/parallel/}.
%
% \bibitem{pdfcol}
%   Heiko Oberdiek: \textit{The \xpackage{pdfcol} package};
%   2007/09/09;\\
%   \CTAN{macros/latex/contrib/oberdiek/pdfcol.pdf}.
%
% \end{thebibliography}
%
% \begin{History}
%   \begin{Version}{2007/09/09 v1.0}
%   \item
%     First version.
%   \end{Version}
% \end{History}
%
% \PrintIndex
%
% \Finale
\endinput