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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 etexcmds.dtx
+% and the derived files
+% etexcmds.sty, etexcmds.pdf, etexcmds.ins, etexcmds.drv,
+% etexcmds-test1.tex, etexcmds-test2.tex, etexcmds-test3.tex.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/oberdiek/etexcmds.dtx
+% CTAN:macros/latex/contrib/oberdiek/etexcmds.pdf
+%
+% Unpacking:
+% (a) If etexcmds.ins is present:
+% tex etexcmds.ins
+% (b) Without etexcmds.ins:
+% tex etexcmds.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{etexcmds.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If etexcmds.drv is present:
+% latex etexcmds.drv
+% (b) Without etexcmds.drv:
+% latex etexcmds.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 etexcmds.dtx
+% makeindex -s gind.ist etexcmds.idx
+% pdflatex etexcmds.dtx
+% makeindex -s gind.ist etexcmds.idx
+% pdflatex etexcmds.dtx
+%
+% Installation:
+% TDS:tex/generic/oberdiek/etexcmds.sty
+% TDS:doc/latex/oberdiek/etexcmds.pdf
+% TDS:doc/latex/oberdiek/etexcmds-test1.tex
+% TDS:doc/latex/oberdiek/etexcmds-test2.tex
+% TDS:doc/latex/oberdiek/etexcmds-test3.tex
+% TDS:source/latex/oberdiek/etexcmds.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: etexcmds 2007/05/06 v1.0 Providing prefix for e-TeX command names (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 etexcmds.dtx
+and the derived files
+ etexcmds.sty, etexcmds.pdf, etexcmds.ins, etexcmds.drv,
+ etexcmds-test1.tex, etexcmds-test2.tex, etexcmds-test3.tex.
+
+\endpreamble
+
+\generate{%
+ \file{etexcmds.ins}{\from{etexcmds.dtx}{install}}%
+ \file{etexcmds.drv}{\from{etexcmds.dtx}{driver}}%
+ \usedir{tex/generic/oberdiek}%
+ \file{etexcmds.sty}{\from{etexcmds.dtx}{package}}%
+ \usedir{doc/latex/oberdiek}%
+ \file{etexcmds-test1.tex}{\from{etexcmds.dtx}{test1}}%
+ \file{etexcmds-test2.tex}{\from{etexcmds.dtx}{test2}}%
+ \file{etexcmds-test3.tex}{\from{etexcmds.dtx}{test3}}%
+}
+
+\obeyspaces
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* etexcmds.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `etexcmds.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{etexcmds.drv}%
+ [2007/05/06 v1.0 Providing prefix for e-TeX command names (HO)]%
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}
+\begin{document}
+ \DocInput{etexcmds.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{249}
+%
+% \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{etexcmds.drv}
+%
+% \title{The \xpackage{etexcmds} package}
+% \date{2007/05/06 v1.0}
+% \author{Heiko Oberdiek\\\xemail{oberdiek@uni-freiburg.de}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% New primitive commands are introduced in \eTeX. Sometimes the
+% names collide with existing macros. This package solves this
+% name clashes by adding a prefix to \eTeX's commands. For example,
+% \eTeX's \cs{unexpanded} is provided as \cs{etex@unexpanded}.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% New primitive commands are introduced in \eTeX. Unhappily
+% \cs{unexpanded} collides with a macro in Con\TeX t with the
+% same name. This also affects the \LaTeX\ world. For example,
+% package \xpackage{m-ch-de} loads \xfile{base/syst-gen.tex}
+% that redefines \cs{unexpanded}. Thus this package defines
+% \cs{etex@unexpanded} to get rid of the name clash.
+%
+% \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
+ \catcode44 12 % ,
+ \catcode45 12 % -
+ \catcode46 12 % .
+ \catcode58 12 % :
+ \catcode64 11 % @
+ \expandafter\let\expandafter\x\csname ver@etexcmds.sty\endcsname
+ \ifcase 0%
+ \ifx\x\relax % plain
+ \else
+ \ifx\x\empty % LaTeX
+ \else
+ 1%
+ \fi
+ \fi
+ \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{etexcmds}{The package is already loaded}%
+ \endgroup
+ \expandafter\endinput
+ \fi
+\endgroup
+% \end{macrocode}
+% Package identification:
+% \begin{macrocode}
+\begingroup
+ \catcode44 12 % ,
+ \catcode45 12 % -
+ \catcode46 12 % .
+ \catcode58 12 % :
+ \catcode64 11 % @
+ \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\relax
+ \xdef#1{#3}%
+ \fi
+ }%
+ \fi
+\expandafter\x\csname ver@etexcmds.sty\endcsname
+\ProvidesPackage{etexcmds}%
+ [2007/05/06 v1.0 Providing prefix for e-TeX command names (HO)]
+% \end{macrocode}
+%
+% \subsection{Catcodes}
+%
+% \begin{macrocode}
+\expandafter\edef\csname etexcmds@End\endcsname{%
+ \catcode44 \the\catcode44\relax % ,
+ \catcode45 \the\catcode45\relax % -
+ \catcode46 \the\catcode46\relax % .
+ \catcode61 \the\catcode61\relax % =
+ \catcode64 \the\catcode64\relax % @
+ \noexpand\endinput
+}
+\catcode44 12 % ,
+\catcode45 12 % -
+\catcode46 12 % .
+\catcode61 12 % =
+\catcode64 11 % @
+% \end{macrocode}
+%
+% \subsection{Load package \xpackage{infwarerr}}
+%
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+ \input infwarerr.sty\relax
+\else
+ \RequirePackage{infwarerr}%
+\fi
+% \end{macrocode}
+%
+% \subsection{\cs{unexpanded}}
+%
+% \begin{macro}{\ifetex@unexpanded}
+% \begin{macrocode}
+\newif\ifetex@unexpanded
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\etex@unexpanded}
+% \begin{macrocode}
+\begingroup
+\escapechar=92 % backslash
+\edef\x{\string\unexpanded}%
+\edef\y{\meaning\unexpanded}%
+\ifx\x\y
+ \endgroup
+ \let\etex@unexpanded\unexpanded
+ \etex@unexpandedtrue
+\else
+ \edef\y{\meaning\normalunexpanded}%
+ \ifx\x\y
+ \endgroup
+ \let\etex@unexpanded\normalunexpanded
+ \etex@unexpandedtrue
+ \else
+ \edef\y{\meaning\@@unexpanded}%
+ \ifx\y
+ \endgroup
+ \let\etex@unexpanded\@@unexpanded
+ \etex@unexpandedtrue
+ \else
+ \endgroup
+ \@PackageInfoNoLine{etexcmds}{%
+ Could not find \string\unexpanded.\MessageBreak
+ That can mean that you are not using e-TeX or\MessageBreak
+ that some package has redefined \string\unexpanded.\MessageBreak
+ In the latter case, load this package earlier%
+ }%
+ \etex@unexpandedfalse
+ \fi
+ \fi
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+\InfWarErr@End
+%</package>
+% \end{macrocode}
+%
+% \section{Test}
+%
+% \begin{macrocode}
+%<*test1>
+\immediate\write16{etexcmds-test1.tex: test file for plainTeX}
+\input etexcmds.sty\relax
+\catcode`\@=11 %
+\edef\x{\string\unexpanded}
+\edef\y{\meaning\etex@unexpanded}
+\ifx\x\y
+\else
+ \@PackageError{etexcmds-test1}{Test failed}\@ehc
+\fi
+\end
+%</test1>
+% \end{macrocode}
+%
+% \begin{macrocode}
+%<*test2>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{etexcmds-test2.tex}[2007/05/06 v1.0 Test file for LaTeX]
+\RequirePackage{etexcmds}
+\makeatletter
+\edef\x{\string\unexpanded}
+\edef\y{\meaning\etex@unexpanded}
+\ifx\x\y
+\else
+ \@PackageError{etexcmds-test2}{Test failed}\@ehc
+\fi
+\stop
+%</test2>
+% \end{macrocode}
+%
+% \begin{macrocode}
+%<*test3>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{etexcmds-test3.tex}[2007/05/06 v1.0 Test file for LaTeX]
+\documentclass{article}
+\usepackage{m-pictex}
+\usepackage{m-ch-de}
+\usepackage{etexcmds}
+\makeatletter
+\ifetex@unexpanded
+ \edef\x{\string\unexpanded}%
+ \edef\y{\meaning\etex@unexpanded}%
+ \ifx\x\y
+ \else
+ \@PackageWarningNoLine{etexcmds-test3}{Test failed}%
+ \fi
+\else
+ \@PackageWarningNoLine{etexcmds-test3}{%
+ Test failed because of ConTeXt%
+ }%
+\fi
+\stop
+%</test3>
+% \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/etexcmds.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/oberdiek/etexcmds.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}
+%
+% \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 etexcmds.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}
+% \sbox0{^^A
+% \begin{tabular}{@{}>{\ttfamily}l@{$\quad\rightarrow\quad$}>{\ttfamily}l@{}}
+% etexcmds.sty & tex/generic/oberdiek/etexcmds.sty\\
+% etexcmds.pdf & doc/latex/oberdiek/etexcmds.pdf\\
+% etexcmds-test1.tex & doc/latex/oberdiek/etexcmds-test1.tex\\
+% etexcmds-test2.tex & doc/latex/oberdiek/etexcmds-test2.tex\\
+% etexcmds-test3.tex & doc/latex/oberdiek/etexcmds-test3.tex\\
+% etexcmds.dtx & source/latex/oberdiek/etexcmds.dtx\\
+% \end{tabular}^^A
+% }%
+% \ifdim\wd0>\linewidth
+% \mbox{}\nobreak\hskip0pt minus\leftmargin
+% \usebox0
+% \nobreak\hskip0pt minus\rightmargin
+% \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 etexcmds.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{etexcmds.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 etexcmds.dtx
+%makeindex -s gind.ist etexcmds.idx
+%pdflatex etexcmds.dtx
+%makeindex -s gind.ist etexcmds.idx
+%pdflatex etexcmds.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \begin{History}
+% \begin{Version}{2007/04/26 v1.0}
+% \item
+% First version.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput