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+% \iffalse meta-comment
+%
+% File: pdfcol.dtx
+% Version: 2022-09-21 v1.7
+% Info: Handle new color stacks for pdfTeX
+%
+% Copyright (C)
+% 2007 Heiko Oberdiek
+% 2016-2022 Oberdiek Package Support Group
+% https://github.com/ho-tex/pdfcol/issues
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either
+% version 1.3c of this license or (at your option) any later
+% version. This version of this license is in
+% https://www.latex-project.org/lppl/lppl-1-3c.txt
+% and the latest version of this license is in
+% https://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".
+%
+% The Current Maintainers of this work are
+% Heiko Oberdiek and the Oberdiek Package Support Group
+% https://github.com/ho-tex/pdfcol/issues
+%
+% The Base Interpreter refers to any `TeX-Format',
+% because some files are installed in TDS:tex/generic//.
+%
+% This work consists of the main source file pdfcol.dtx
+% and the derived files
+% pdfcol.sty, pdfcol.pdf, pdfcol.ins, pdfcol.drv, pdfcol-test1.tex,
+% pdfcol-test2.tex, pdfcol-test3.tex, pdfcol-test4.tex.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/pdfcol/pdfcol.dtx
+% CTAN:macros/latex/contrib/pdfcol/pdfcol.pdf
+%
+% Unpacking:
+% (a) If pdfcol.ins is present:
+% tex pdfcol.ins
+% (b) Without pdfcol.ins:
+% tex pdfcol.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{pdfcol.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If pdfcol.drv is present:
+% latex pdfcol.drv
+% (b) Without pdfcol.drv:
+% latex pdfcol.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 pdfcol.dtx
+% makeindex -s gind.ist pdfcol.idx
+% pdflatex pdfcol.dtx
+% makeindex -s gind.ist pdfcol.idx
+% pdflatex pdfcol.dtx
+%
+% Installation:
+% TDS:tex/generic/pdfcol/pdfcol.sty
+% TDS:doc/latex/pdfcol/pdfcol.pdf
+% TDS:source/latex/pdfcol/pdfcol.dtx
+%
+%<*ignore>
+\begingroup
+ \catcode123=1 %
+ \catcode125=2 %
+ \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: pdfcol 2022-09-21 v1.7 Handle new color stacks for pdfTeX (HO)}
+\Msg{************************************************************************}
+
+\keepsilent
+\askforoverwritefalse
+
+\let\MetaPrefix\relax
+\preamble
+
+This is a generated file.
+
+Project: pdfcol
+Version: 2022-09-21 v1.7
+
+Copyright (C)
+ 2007 Heiko Oberdiek
+ 2016-2022 Oberdiek Package Support Group
+
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.3c of this license or (at your option) any later
+version. This version of this license is in
+ https://www.latex-project.org/lppl/lppl-1-3c.txt
+and the latest version of this license is in
+ https://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".
+
+The Current Maintainers of this work are
+Heiko Oberdiek and the Oberdiek Package Support Group
+https://github.com/ho-tex/pdfcol/issues
+
+
+The Base Interpreter refers to any `TeX-Format',
+because some files are installed in TDS:tex/generic//.
+
+This work consists of the main source file pdfcol.dtx
+and the derived files
+ pdfcol.sty, pdfcol.pdf, pdfcol.ins, pdfcol.drv, pdfcol-test1.tex,
+ pdfcol-test2.tex, pdfcol-test3.tex, pdfcol-test4.tex.
+
+\endpreamble
+\let\MetaPrefix\DoubleperCent
+
+\generate{%
+ \file{pdfcol.ins}{\from{pdfcol.dtx}{install}}%
+ \file{pdfcol.drv}{\from{pdfcol.dtx}{driver}}%
+ \usedir{tex/generic/pdfcol}%
+ \file{pdfcol.sty}{\from{pdfcol.dtx}{package}}%
+% \usedir{doc/latex/pdfcol/test}%
+% \file{pdfcol-test1.tex}{\from{pdfcol.dtx}{test1}}%
+% \file{pdfcol-test2.tex}{\from{pdfcol.dtx}{test2}}%
+% \file{pdfcol-test3.tex}{\from{pdfcol.dtx}{test3}}%
+% \file{pdfcol-test4.tex}{\from{pdfcol.dtx}{test4}}%
+}
+
+\catcode32=13\relax% active space
+\let =\space%
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* pdfcol.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `pdfcol.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{pdfcol.drv}%
+ [2022-09-21 v1.7 Handle new color stacks for pdfTeX (HO)]%
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}[2011/11/22]
+\begin{document}
+ \DocInput{pdfcol.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+%
+%
+% \GetFileInfo{pdfcol.drv}
+%
+% \title{The \xpackage{pdfcol} package}
+% \date{2022-09-21 v1.7}
+% \author{Heiko Oberdiek\thanks
+% {Please report any issues at \url{https://github.com/ho-tex/pdfcol/issues}}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% Since version 1.40 \pdfTeX\ supports color stacks.
+% The driver file \xfile{pdftex.def} for package \xpackage{color}
+% defines and uses a main color stack since version v0.04b.
+% Package \xpackage{pdfcol} is intended for package writers.
+% It defines macros for setting and maintaining new color stacks.
+% It works also with lua\TeX.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% Version 1.40 of \pdfTeX\ adds new primitives \cs{pdfcolorstackinit}
+% and \cs{pdfcolorstack}. Now color stacks can be defined and used.
+% A main color stack is maintained by the driver file \xfile{pdftex.def}
+% similar to dvips or dvipdfm. However the number of color stacks
+% is not limited to one in \pdfTeX. Thus further color problems
+% can now be solved, such as footnotes across pages or text
+% that is set in parallel columns (e.g. packages \xpackage{parallel}
+% or \xpackage{parcolumn}). Unlike the main color stack,
+% the support by additional color stacks cannot be done in
+% a transparent manner.
+%
+% This package \xpackage{pdfcol} provides an easier interface to
+% additional color stacks without the need to use the
+% low level primitives.
+%
+% \subsection{Requirements}
+% \label{sec:req}
+%
+% \begin{itemize}
+% \item
+% \pdfTeX\ 1.40 or greater or lua\TeX.
+% \item
+% \pdfTeX or lua\TeX\ in PDF mode. (I don't know a DVI driver that
+% support several color stacks.)
+% \item
+% \xfile{pdftex.def} or \xfile{luatex.def} newer than 2007.
+% \end{itemize}
+% Package \xpackage{pdfcol} checks the requirements and
+% sets switch \cs{ifpdfcolAvailable} accordingly.
+%
+% \subsection{Interface}
+%
+% \begin{declcs}{ifpdfcolAvailable}
+% \end{declcs}
+% If the requirements of section \ref{sec:req} are met the
+% switch \cs{ifpdfcolAvailable} behaves as \cs{iftrue}.
+% Otherwise the other interface macros in this section will
+% be disabled with a message. Also the first use of such a
+% macro will print a message. The messages are print to
+% the \xext{log} file only if \pdfTeX\ and lua\TeX\ not used in PDF mode.
+%
+% \begin{declcs}{pdfcolErrorNoStacks}
+% \end{declcs}
+% The first call of \cs{pdfcolErrorNoStacks} prints an error
+% message, if color stacks are not available.
+%
+% \begin{declcs}{pdfcolInitStack} \M{name}
+% \end{declcs}
+% A new color stack is initialized by \cs{pdfcolInitStack}.
+% The \meta{name} is used for identifying the stack. It usually
+% consists of letters and digits. (The name must survive a \cs{csname}.)
+%
+% The intension of the macro is the definition of an additional
+% color stack. Thus the stack is not page bounded like the
+% main color stack. Black (\texttt{0 g 0 G}) is used as initial
+% color value. And colors are written with modifier \texttt{direct}
+% that means without setting the current transfer matrix and changing
+% the current point (see documentation of \pdfTeX\ for
+% |\pdfliteral direct{...}|).
+%
+% \begin{declcs}{pdfcolIfStackExists} \M{name} \M{then} \M{else}
+% \end{declcs}
+% Macro \cs{pdfcolIfStackExists} checks whether color stack \meta{name}
+% exists. In case of success argument \meta{then} is executed
+% and \meta{else} otherwise.
+%
+% \begin{declcs}{pdfcolSwitchStack} \M{name}
+% \end{declcs}
+% Macro \cs{pdfcolSwitchStack} switches the color stack. The color macros
+% of package \xpackage{color} (or \xpackage{xcolor}) now uses the
+% new color stack with name \meta{name}.
+%
+% \begin{declcs}{pdfcolSetCurrentColor}
+% \end{declcs}
+% Macro \cs{pdfcolSetCurrentColor} replaces the topmost
+% entry of the stack by the current color (\cs{current@color}).
+%
+% \begin{declcs}{pdfcolSetCurrent} \M{name}
+% \end{declcs}
+% Macro \cs{pdfcolSetCurrent} sets the color that is read in
+% the top-most entry of color stack \meta{name}. If \meta{name}
+% is empty, the default color stack is used.
+%
+% \StopEventually{
+% }
+%
+% \section{Implementation}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+% \subsection{Reload check and package identification}
+% Reload check, especially if the package is not used with \LaTeX.
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode35=6 % #
+ \catcode39=12 % '
+ \catcode44=12 % ,
+ \catcode45=12 % -
+ \catcode46=12 % .
+ \catcode58=12 % :
+ \catcode64=11 % @
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \expandafter\let\expandafter\x\csname ver@pdfcol.sty\endcsname
+ \ifx\x\relax % plain-TeX, first loading
+ \else
+ \def\empty{}%
+ \ifx\x\empty % LaTeX, first loading,
+ % variable is initialized, but \ProvidesPackage not yet seen
+ \else
+ \expandafter\ifx\csname PackageInfo\endcsname\relax
+ \def\x#1#2{%
+ \immediate\write-1{Package #1 Info: #2.}%
+ }%
+ \else
+ \def\x#1#2{\PackageInfo{#1}{#2, stopped}}%
+ \fi
+ \x{pdfcol}{The package is already loaded}%
+ \aftergroup\endinput
+ \fi
+ \fi
+\endgroup%
+% \end{macrocode}
+% Package identification:
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode35=6 % #
+ \catcode39=12 % '
+ \catcode40=12 % (
+ \catcode41=12 % )
+ \catcode44=12 % ,
+ \catcode45=12 % -
+ \catcode46=12 % .
+ \catcode47=12 % /
+ \catcode58=12 % :
+ \catcode64=11 % @
+ \catcode91=12 % [
+ \catcode93=12 % ]
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \expandafter\ifx\csname ProvidesPackage\endcsname\relax
+ \def\x#1#2#3[#4]{\endgroup
+ \immediate\write-1{Package: #3 #4}%
+ \xdef#1{#4}%
+ }%
+ \else
+ \def\x#1#2[#3]{\endgroup
+ #2[{#3}]%
+ \ifx#1\@undefined
+ \xdef#1{#3}%
+ \fi
+ \ifx#1\relax
+ \xdef#1{#3}%
+ \fi
+ }%
+ \fi
+\expandafter\x\csname ver@pdfcol.sty\endcsname
+\ProvidesPackage{pdfcol}%
+ [2022-09-21 v1.7 Handle new color stacks for pdfTeX (HO)]%
+% \end{macrocode}
+%
+% \subsection{Catcodes}
+%
+% \begin{macrocode}
+\begingroup\catcode61\catcode48\catcode32=10\relax%
+ \catcode13=5 % ^^M
+ \endlinechar=13 %
+ \catcode123=1 % {
+ \catcode125=2 % }
+ \catcode64=11 % @
+ \def\x{\endgroup
+ \expandafter\edef\csname PDFCOL@AtEnd\endcsname{%
+ \endlinechar=\the\endlinechar\relax
+ \catcode13=\the\catcode13\relax
+ \catcode32=\the\catcode32\relax
+ \catcode35=\the\catcode35\relax
+ \catcode61=\the\catcode61\relax
+ \catcode64=\the\catcode64\relax
+ \catcode123=\the\catcode123\relax
+ \catcode125=\the\catcode125\relax
+ }%
+ }%
+\x\catcode61\catcode48\catcode32=10\relax%
+\catcode13=5 % ^^M
+\endlinechar=13 %
+\catcode35=6 % #
+\catcode64=11 % @
+\catcode123=1 % {
+\catcode125=2 % }
+\def\TMP@EnsureCode#1#2{%
+ \edef\PDFCOL@AtEnd{%
+ \PDFCOL@AtEnd
+ \catcode#1=\the\catcode#1\relax
+ }%
+ \catcode#1=#2\relax
+}
+\TMP@EnsureCode{39}{12}% '
+\TMP@EnsureCode{40}{12}% (
+\TMP@EnsureCode{41}{12}% )
+\TMP@EnsureCode{43}{12}% +
+\TMP@EnsureCode{44}{12}% ,
+\TMP@EnsureCode{46}{12}% .
+\TMP@EnsureCode{47}{12}% /
+\TMP@EnsureCode{91}{12}% [
+\TMP@EnsureCode{93}{12}% ]
+\TMP@EnsureCode{96}{12}% `
+\edef\PDFCOL@AtEnd{\PDFCOL@AtEnd\noexpand\endinput}
+% \end{macrocode}
+%
+% \subsection{Check requirements}
+%
+% \begin{macro}{\PDFCOL@RequirePackage}
+% \begin{macrocode}
+\ifcsname RequirePackage\endcsname
+ \def\PDFCOL@RequirePackage#1[#2]{%
+ \RequirePackage{#1}[{#2}]%
+ }%
+\else
+ \def\PDFCOL@RequirePackage#1[#2]{\input #1.sty\relax}%
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+% LuaTeX Compatability
+% \begin{macrocode}
+\ifx\pdfextension\@undefined\else
+ \def\pdfcolorstackinit {\pdffeedback colorstackinit}
+ \protected\def\pdfcolorstack {\pdfextension colorstack}
+\fi
+% \end{macrocode}
+%
+% \begin{macrocode}
+\PDFCOL@RequirePackage{ltxcmds}[2010/03/01]
+% \end{macrocode}
+%
+% \begin{macro}{ifpdfcolAvailable}
+% \begin{macrocode}
+\ltx@newif\ifpdfcolAvailable
+\pdfcolAvailabletrue
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Check package \xpackage{luacolor}}
+%
+% \begin{macrocode}
+\ltx@newif\ifPDFCOL@luacolor
+\ifcsname ver@luacolor.sty\endcsname
+ \PDFCOL@luacolortrue
+\else
+ \PDFCOL@luacolorfalse
+\fi
+% \end{macrocode}
+%
+% \subsubsection{Check PDF mode}
+%
+% \begin{macrocode}
+\PDFCOL@RequirePackage{infwarerr}[2007/09/09]
+\PDFCOL@RequirePackage{iftex}[2019/11/07]
+\ifcase\ifpdf\ifPDFCOL@luacolor 1\fi\else 1\fi0 %
+ \def\PDFCOL@Message{%
+ \@PackageWarningNoLine{pdfcol}%
+ }%
+\else
+ \pdfcolAvailablefalse
+ \def\PDFCOL@Message{%
+ \@PackageInfoNoLine{pdfcol}%
+ }%
+ \PDFCOL@Message{%
+ Interface disabled because of %
+ \ifPDFCOL@luacolor
+ package `luacolor'%
+ \else
+ missing PDF mode of pdfTeX%
+ \fi
+ }%
+\fi
+% \end{macrocode}
+%
+% \subsubsection{Check version of \pdfTeX}
+% The version check has been removed. We assume a new enough \pdfTeX.
+%
+% \subsubsection{Check \xfile{pdftex.def}}
+% We no longer check the version but assume that it is new enough.
+% \begin{macrocode}
+\ifpdfcolAvailable
+% \end{macrocode}
+% Try to load package color if it is not yet loaded (\LaTeX\ case).
+% \begin{macrocode}
+ \ifcsname documentclass\endcsname
+ \RequirePackage{color}
+ \fi
+\fi
+% \end{macrocode}
+%
+% \begin{macrocode}
+\let\pdfcolAvailabletrue\relax
+\let\pdfcolAvailablefalse\relax
+% \end{macrocode}
+%
+% \subsection{Enabled interface macros}
+%
+% \begin{macrocode}
+\ifpdfcolAvailable
+% \end{macrocode}
+%
+% \begin{macro}{\pdfcolErrorNoStacks}
+% \begin{macrocode}
+ \let\pdfcolErrorNoStacks\relax
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcol@Value}
+% \begin{macrocode}
+ \expandafter\ifx\csname pdfcol@Value\endcsname\relax
+ \def\pdfcol@Value{0 g 0 G}%
+ \fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcol@LiteralModifier}
+% \begin{macrocode}
+ \expandafter\ifx\csname pdfcol@LiteralModifier\endcsname\relax
+ \def\pdfcol@LiteralModifier{direct}%
+ \fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolInitStack}
+% \begin{macrocode}
+ \def\pdfcolInitStack#1{%
+ \expandafter\ifx\csname pdfcol@Stack@#1\endcsname\relax
+ \global\expandafter\chardef\csname pdfcol@Stack@#1\endcsname=%
+ \pdfcolorstackinit\pdfcol@LiteralModifier{\pdfcol@Value}%
+ \relax
+ \@PackageInfo{pdfcol}{%
+ New color stack `#1' = \number\csname pdfcol@Stack@#1\endcsname
+ }%
+ \else
+ \@PackageError{pdfcol}{%
+ Stack `#1' is already defined%
+ }\@ehc
+ \fi
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolIfStackExists}
+% \begin{macrocode}
+ \def\pdfcolIfStackExists#1{%
+ \expandafter\ifx\csname pdfcol@Stack@#1\endcsname\relax
+ \expandafter\@secondoftwo
+ \else
+ \expandafter\@firstoftwo
+ \fi
+ }%
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@firstoftwo}
+% \begin{macrocode}
+ \expandafter\ifx\csname @firstoftwo\endcsname\relax
+ \long\def\@firstoftwo#1#2{#1}%
+ \fi
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@secondoftwo}
+% \begin{macrocode}
+ \expandafter\ifx\csname @secondoftwo\endcsname\relax
+ \long\def\@secondoftwo#1#2{#2}%
+ \fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolSwitchStack}
+% \begin{macrocode}
+ \def\pdfcolSwitchStack#1{%
+ \pdfcolIfStackExists{#1}{%
+ \expandafter\let\expandafter\@pdfcolorstack
+ \csname pdfcol@Stack@#1\endcsname
+ }{%
+ \pdfcol@ErrorNoStack{#1}%
+ }%
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolSetCurrentColor}
+% \begin{macrocode}
+ \def\pdfcolSetCurrentColor{%
+ \pdfcolorstack\@pdfcolorstack set{\current@color}%
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolSetCurrent}
+% \begin{macrocode}
+ \def\pdfcolSetCurrent#1{%
+ \ifx\\#1\\%
+ \pdfcolorstack\@pdfcolorstack current\relax
+ \else
+ \pdfcolIfStackExists{#1}{%
+ \pdfcolorstack\csname pdfcol@Stack@#1\endcsname current\relax
+ }{%
+ \pdfcol@ErrorNoStack{#1}%
+ }%
+ \fi
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcol@ErrorNoStack}
+% \begin{macrocode}
+ \def\pdfcol@ErrorNoStack#1{%
+ \@PackageError{pdfcol}{Stack `#1' does not exists}\@ehc
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Disabled interface macros}
+%
+% \begin{macrocode}
+\else
+% \end{macrocode}
+%
+% \begin{macro}{\pdfcolErrorNoStacks}
+% \begin{macrocode}
+ \def\pdfcolErrorNoStacks{%
+ \@PackageError{pdfcol}{%
+ Color stacks are not available%
+ }{%
+ Update pdfTeX (1.40) and `pdftex.def' (0.04b) %
+ if necessary.\MessageBreak
+ Ensure that `pdftex.def' is loaded %
+ (package `color' or `xcolor').\MessageBreak
+ Further messages can be found in TeX's %
+ protocol file `\jobname.log'.\MessageBreak
+ \MessageBreak
+ \@ehc
+ }%
+ \global\let\pdfcolErrorNoStacks\relax
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\PDFCOL@Disabled}
+% \begin{macrocode}
+ \def\PDFCOL@Disabled{%
+ \PDFCOL@Message{%
+ pdfTeX's color stacks are not available%
+ }%
+ \global\let\PDFCOL@Disabled\relax
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolInitStack}
+% \begin{macrocode}
+ \def\pdfcolInitStack#1{%
+ \PDFCOL@Disabled
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolIfStackExists}
+% \begin{macrocode}
+ \long\def\pdfcolIfStackExists#1#2#3{#3}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolSwitchStack}
+% \begin{macrocode}
+ \def\pdfcolSwitchStack#1{%
+ \PDFCOL@Disabled
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolSetCurrentColor}
+% \begin{macrocode}
+ \def\pdfcolSetCurrentColor{%
+ \PDFCOL@Disabled
+ }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\pdfcolSetCurrent}
+% \begin{macrocode}
+ \def\pdfcolSetCurrent#1{%
+ \PDFCOL@Disabled
+ }%
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+\fi
+% \end{macrocode}
+%
+% \begin{macrocode}
+\PDFCOL@AtEnd%
+%</package>
+% \end{macrocode}
+%% \section{Installation}
+%
+% \subsection{Download}
+%
+% \paragraph{Package.} This package is available on
+% CTAN\footnote{\CTANpkg{pdfcol}}:
+% \begin{description}
+% \item[\CTAN{macros/latex/contrib/pdfcol/pdfcol.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/pdfcol/pdfcol.pdf}] Documentation.
+% \end{description}
+%
+%
+% \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 pdfcol.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@{}}
+% pdfcol.sty & tex/generic/pdfcol/pdfcol.sty\\
+% pdfcol.pdf & doc/latex/pdfcol/pdfcol.pdf\\
+% pdfcol.dtx & source/latex/pdfcol/pdfcol.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
+% (\TeX\,Live, \mikTeX, \dots) relies on file name databases, you must refresh
+% these. For example, \TeX\,Live\ users run \verb|texhash| or
+% \verb|mktexlsr|.
+%
+% \subsection{Some details for the interested}
+%
+% \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{pdfcol.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 pdfcol.dtx
+%makeindex -s gind.ist pdfcol.idx
+%pdflatex pdfcol.dtx
+%makeindex -s gind.ist pdfcol.idx
+%pdflatex pdfcol.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \begin{History}
+% \begin{Version}{2007/09/09 v1.0}
+% \item
+% First version.
+% \end{Version}
+% \begin{Version}{2007/12/09 v1.1}
+% \item
+% \cs{pdfcolSetCurrentColor} added.
+% \end{Version}
+% \begin{Version}{2007/12/12 v1.2}
+% \item
+% Detection for package \xpackage{luacolor} added.
+% \end{Version}
+% \begin{Version}{2016/05/16 v1.3}
+% \item
+% Documentation updates.
+% \end{Version}
+% \begin{Version}{2016/05/17 v1.4}
+% \item
+% Use luatex85 package for new luatex compatibility
+% \end{Version}
+% \begin{Version}{2018/11/01 v1.5}
+% \item
+% Remove luatex85 dependency
+% \end{Version}
+% \begin{Version}{2019/12/29 v1.6}
+% \item
+% \xpackage{iftex} package.
+% \end{Version}
+% \begin{Version}{2022-09-21 v1.7}
+% \item Improved luatex compatitiblity, removed unneeded version checks.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput