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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 infwarerr.dtx
+% and the derived files
+% infwarerr.sty, infwarerr.pdf, infwarerr.ins, infwarerr.drv,
+% infwarerr-test1.tex, infwarerr-test2.tex.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/oberdiek/infwarerr.dtx
+% CTAN:macros/latex/contrib/oberdiek/infwarerr.pdf
+%
+% Unpacking:
+% (a) If infwarerr.ins is present:
+% tex infwarerr.ins
+% (b) Without infwarerr.ins:
+% tex infwarerr.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{infwarerr.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If infwarerr.drv is present:
+% latex infwarerr.drv
+% (b) Without infwarerr.drv:
+% latex infwarerr.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 infwarerr.dtx
+% makeindex -s gind.ist infwarerr.idx
+% pdflatex infwarerr.dtx
+% makeindex -s gind.ist infwarerr.idx
+% pdflatex infwarerr.dtx
+%
+% Installation:
+% TDS:tex/generic/oberdiek/infwarerr.sty
+% TDS:doc/latex/oberdiek/infwarerr.pdf
+% TDS:doc/latex/oberdiek/infwarerr-test1.tex
+% TDS:doc/latex/oberdiek/infwarerr-test2.tex
+% TDS:source/latex/oberdiek/infwarerr.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: infwarerr 2007/04/26 v1.0 Providing info/warning/message (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 infwarerr.dtx
+and the derived files
+ infwarerr.sty, infwarerr.pdf, infwarerr.ins, infwarerr.drv,
+ infwarerr-test1.tex, infwarerr-test2.tex.
+
+\endpreamble
+
+\generate{%
+ \file{infwarerr.ins}{\from{infwarerr.dtx}{install}}%
+ \file{infwarerr.drv}{\from{infwarerr.dtx}{driver}}%
+ \usedir{tex/generic/oberdiek}%
+ \file{infwarerr.sty}{\from{infwarerr.dtx}{package}}%
+ \usedir{doc/latex/oberdiek}%
+ \file{infwarerr-test1.tex}{\from{infwarerr.dtx}{test1}}%
+ \file{infwarerr-test2.tex}{\from{infwarerr.dtx}{test2}}%
+}
+
+\obeyspaces
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* infwarerr.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `infwarerr.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{infwarerr.drv}%
+ [2007/04/26 v1.0 Providing info/warning/message (HO)]%
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}
+\begin{document}
+ \DocInput{infwarerr.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{640}
+%
+% \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{infwarerr.drv}
+%
+% \title{The \xpackage{infwarerr} package}
+% \date{2007/04/26 v1.0}
+% \author{Heiko Oberdiek\\\xemail{oberdiek@uni-freiburg.de}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% This package provides a complete set of macros for informations,
+% warnings and error messages with support for \plainTeX.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% Package \xpackage{infwarerr} defines the following set of commands,
+% given as pseudo regular expression:
+% \begin{quote}
+% \verb+\@(Package|Class)(Info|InfoNoLine|Warning|WarningNoLine|Error)+^^A
+% \kern-\rightmargin
+% \end{quote}
+% The first argument is the package or class in question. The second
+% argument contains the message text. \cs{MessageBreak} is supported.
+% In case of error messages, the third argument contains the help
+% text. Supported are \LaTeX's message texts \cs{@ehc}:
+% \begin{quote}
+% |Try typing <return> to proceed|\\
+% |If that doesn't work, type X <return> to quit.|
+% \end{quote}
+% and \cs{@ehd}:
+% \begin{quote}
+% |You're in trouble here. Try typing <return> to proceed|\\
+% |If that doesn't work, type X <return> to quit.|
+% \end{quote}
+%
+% The package is intended for macro writers that want to write
+% code that works for both \LaTeX\ and \plainTeX. If \LaTeX\ is
+% detected, then the macros of this package will only be wrappers
+% for \LaTeX's macros. Otherwise \LaTeX's macros will be mimicked
+% for use with \plainTeX.
+%
+% \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@infwarerr.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{infwarerr}{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@infwarerr.sty\endcsname
+\ProvidesPackage{infwarerr}%
+ [2007/04/26 v1.0 Providing info/warning/message (HO)]
+% \end{macrocode}
+%
+% \subsection{Catcodes}
+%
+% \begin{macrocode}
+\expandafter\edef\csname InfWarErr@End\endcsname{%
+ \catcode39 \the\catcode39\relax % '
+ \catcode40 \the\catcode40\relax % (
+ \catcode41 \the\catcode41\relax % )
+ \catcode44 \the\catcode44\relax % ,
+ \catcode45 \the\catcode45\relax % -
+ \catcode46 \the\catcode46\relax % .
+ \catcode58 \the\catcode58\relax % :
+ \catcode60 \the\catcode60\relax % <
+ \catcode61 \the\catcode61\relax % =
+ \catcode62 \the\catcode62\relax % >
+ \catcode64 \the\catcode64\relax % @
+ \catcode94 \the\catcode94\relax % ^
+ \noexpand\endinput
+}
+\catcode39 12 % '
+\catcode40 12 % (
+\catcode41 12 % )
+\catcode44 12 % ,
+\catcode45 12 % -
+\catcode46 12 % .
+\catcode58 12 % :
+\catcode60 12 % <
+\catcode61 12 % =
+\catcode62 12 % >
+\catcode64 11 % @
+\catcode94 7 % ^
+% \end{macrocode}
+%
+% \subsection{\LaTeX\ detection}
+%
+% \begin{macrocode}
+\begingroup
+ \let\x=Y%
+ \def\check#1{%
+ \@check{Generic}{#1}%
+ \@check{Package}{#1}%
+ \@check{Class}{#1}%
+ }%
+ \def\@check#1#2{%
+ \expandafter\ifx\csname #1#2\endcsname\relax
+ \let\x=N%
+ \fi
+ }%
+ \check{Info}%
+ \check{Warning}%
+ \check{Error}%
+ \@check{Package}{WarningNoLine}%
+ \@check{Class}{WarningNoLine}%
+ \@check{}{@ehc}%
+ \@check{}{@ehd}%
+\expandafter\endgroup
+\ifx\x Y%
+% \end{macrocode}
+%
+% \subsection{Version for \LaTeX}
+%
+% \begin{macro}{\@PackageInfo}
+% \begin{macrocode}
+ \let\@PackageInfo\PackageInfo
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageInfoNoLine}
+% \begin{macrocode}
+ \def\@PackageInfoNoLine#1#2{%
+ \PackageInfo{#1}{#2\@gobble}%
+ }%
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassInfo}
+% \begin{macrocode}
+ \let\@ClassInfo\ClassInfo
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassInfoNoLine}
+% \begin{macrocode}
+ \def\@ClassInfoNoLine#1#2{%
+ \ClassInfo{#1}{#2\@gobble}%
+ }%
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageWarning}
+% \begin{macrocode}
+ \let\@PackageWarning\PackageWarning
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageWarningNoLine}
+% \begin{macrocode}
+ \let\@PackageWarningNoLine\PackageWarningNoLine
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassWarning}
+% \begin{macrocode}
+ \let\@ClassWarning\ClassWarning
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassWarningNoLine}
+% \begin{macrocode}
+ \let\@ClassWarningNoLine\ClassWarningNoLine
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageError}
+% \begin{macrocode}
+ \let\@PackageError\PackageError
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassError}
+% \begin{macrocode}
+ \let\@ClassError\ClassError
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+ \csname fi\endcsname
+ \InfWarErr@End
+\fi
+% \end{macrocode}
+%
+% \subsection{Version for \plainTeX}
+%
+% \begin{macro}{\InfWarErr@online}
+% \begin{macrocode}
+\begingroup\expandafter\endgroup
+\ifcase\expandafter\ifx\csname inputlineno\endcsname\relax
+ 0 %
+ \else
+ \ifnum\inputlineno<0 %
+ 0 %
+ \else
+ 1 %
+ \fi
+ \fi
+ \def\InfWarErr@online{}%
+\else
+ \def\InfWarErr@online{ on input line \the\inputlineno}%
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\InfWarErr@protected}
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname protected\endcsname\relax
+ \def\InfWarErr@protected{}%
+\else
+ \let\InfWarErr@protected\protected
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\InfWarErr@unused}
+% \begin{macrocode}
+\chardef\InfWarErr@unused=16 %
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\InfWarErr@ehc}
+% \begin{macrocode}
+\def\InfWarErr@ehc{%
+ Try typing \space <return> \space to proceed.\MessageBreak
+ If that doesn't work, type \space X <return> \space to quit.%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\InfWarErr@ehd}
+% \begin{macrocode}
+\def\InfWarErr@ehd{%
+ You're in trouble here. \space\@ehc
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\InfWarErr@GenericInfo}
+% \begin{macrocode}
+\InfWarErr@protected\def\InfWarErr@GenericInfo#1#2{%
+ \begingroup
+ \let\on@line\InfWarErr@online
+ \long\def\@gobble##1{}%
+ \def\@spaces{\space\space\space\space}%
+ \def\MessageBreak{^^J#1}%
+ \newlinechar=10 %
+ \immediate\write-1{#2\on@line.}%
+ \endgroup
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\InfWarErr@GenericWarning}
+% \begin{macrocode}
+\InfWarErr@protected\def\InfWarErr@GenericWarning#1#2{%
+ \begingroup
+ \let\on@line\InfWarErr@online
+ \long\def\@gobble##1{}%
+ \def\@spaces{\space\space\space\space}%
+ \def\MessageBreak{^^J#1}%
+ \newlinechar=10 %
+ \immediate\write\InfWarErr@unused{^^J#2\on@line.^^J}%
+ \endgroup
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\InfWarErr@GenericError}
+% Old \TeX\ versions below 3.141 where |^^J| is not working
+% as newline in error message and help texts are not supported.
+% \begin{macrocode}
+\InfWarErr@protected\def\InfWarErr@GenericError#1#2#3#4{%
+ \begingroup
+ \immediate\write\InfWarErr@unused{}%
+ \newlinechar=10 %
+ \def\@spaces{\space\space\space\space}%
+ \let\@ehc\InfWarErr@ehc
+ \let\@ehd\InfWarErr@ehd
+ \let\on@line\InfWarErr@online
+ \def\MessageBreak{^^J}%
+ \edef\InfWarErr@help{\noexpand\errhelp{#4}}%
+ \InfWarErr@help
+ \def\MessageBreak{^^J#1}%
+ \errmessage{%
+ #2.^^J^^J%
+ #3^^J%
+ Type \space H <return> \space for immediate help%
+ }%
+ \endgroup
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@PackageInfo}
+% \begin{macrocode}
+\def\@PackageInfo#1#2{%
+ \InfWarErr@GenericInfo{%
+ (#1) \@spaces\@spaces\@spaces
+ }{%
+ Package #1 Info: #2%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageInfoNoLine}
+% \begin{macrocode}
+\def\@PackageInfoNoLine#1#2{%
+ \@PackageInfo{#1}{#2\@gobble}%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassInfo}
+% \begin{macrocode}
+\def\@ClassInfo#1#2{%
+ \InfWarErr@GenericInfo{%
+ (#1) \space\space\@spaces\@spaces
+ }{%
+ Class #1 Info: #2%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassInfoNoLine}
+% \begin{macrocode}
+\def\@ClassInfoNoLine#1#2{%
+ \@ClassInfo{#1}{#2\@gobble}%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageWarning}
+% \begin{macrocode}
+\def\@PackageWarning#1#2{%
+ \InfWarErr@GenericWarning{%
+ (#1)\@spaces\@spaces\@spaces\@spaces
+ }{%
+ Package #1 Warning: #2%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageWarningNoLine}
+% \begin{macrocode}
+\def\@PackageWarningNoLine#1#2{%
+ \@PackageWarning{#1}{#2\@gobble}%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassWarning}
+% \begin{macrocode}
+\def\@ClassWarning#1#2{%
+ \InfWarErr@GenericWarning{%
+ (#1) \space\@spaces\@spaces\@spaces
+ }{%
+ Class #1 Warning: #2%
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassWarningNoLine}
+% \begin{macrocode}
+\def\@ClassWarningNoLine#1#2{%
+ \@ClassWarning{#1}{#2\@gobble}%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@PackageError}
+% \begin{macrocode}
+\def\@PackageError#1#2#3{%
+ \InfWarErr@GenericError{%
+ (#1)\@spaces\@spaces\@spaces\@spaces
+ }{%
+ Package #1 Error: #2%
+ }{%
+ See the #1 package documentation for explanation.%
+ }{#3}%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@ClassError}
+% \begin{macrocode}
+\def\@ClassError#1#2#3{%
+ \InfWarErr@GenericError{%
+ (#1) \space\@spaces\@spaces\@spaces
+ }{%
+ Class #1 Error: #2%
+ }{%
+ See the #1 class documentation for explanation.%
+ }{#3}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+\InfWarErr@End
+%</package>
+% \end{macrocode}
+%
+% \section{Test}
+%
+% \begin{macrocode}
+%<*test1>
+\let\PackageInfo\relax
+\input infwarerr.sty\relax
+\let\OrgWrite\write
+\chardef\WriteUnused=16 %
+\def\msg#{\immediate\OrgWrite\WriteUnused}
+\msg{File: infwarerr-test1.tex 2007/04/26 v1.0 Test file for plain-TeX}
+\catcode64=11 %
+%</test1>
+% \end{macrocode}
+%
+% \begin{macrocode}
+%<*test2>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{infwarerr-test2.tex}[2007/04/26 v1.0 Test file for LaTeX]
+\RequirePackage{infwarerr}
+\makeatletter
+\let\OrgWrite\write
+\chardef\WriteUnused=\@unused
+\def\msg#{\immediate\OrgWrite\WriteUnused}
+%</test2>
+% \end{macrocode}
+%
+% \begin{macrocode}
+%<*test1|test2>
+\def\pkgname{PACKAGE}
+\def\clsname{CLASS}
+\def\msgtext{MESSAGE\MessageBreak SECOND LINE}
+\def\hlptext{HELP\MessageBreak SECOND LINE}
+
+\let\OrgWrite\write
+\let\OrgErrMessage\errmessage
+
+\def\write#1#{%
+ \@write{#1}%
+}
+\def\@write#1#2{%
+ \OrgWrite#1{#2}%
+ \xdef\WriteNum{\number#1}%
+ \xdef\WriteText{#2}%
+}
+\def\TestFailed#1#2{%
+ \OrgErrMessage{Test (\string#1) failed: #2}%
+}
+\def\TestWrite#1#2#3{%
+ \ifnum\WriteNum=#2\relax
+ \else
+ \TestFailed#1{write stream number: \WriteNum <> #2}%
+ \fi
+ \begingroup
+ \let~\space
+ \edef\TestString{#3}%
+ \ifx\WriteText\TestString
+ \else
+ \msg{}%
+ \msg{[\WriteText]}%
+ \msg{<>}%
+ \msg{[#3]}%
+ \TestFailed#1{write text}%
+ \fi
+ \endgroup
+}
+\newtoks\ErrHelpToks
+\def\errmessage#1{%
+ \global\ErrHelpToks=\expandafter{\the\errhelp}%
+ \msg{**************** error message ****************}%
+ \msg{! #1}%
+ \msg{**************** help message *****************}%
+ \msg{\the\errhelp}%
+ \msg{***********************************************}%
+ \xdef\ErrMessage{! #1}%
+}
+\def\TestInfo{%
+ \@PackageInfo\pkgname\msgtext
+ \TestWrite\@PackageInfo{-1}{%
+ Package PACKAGE Info: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~SECOND LINE on input line \the\inputlineno.%
+ }%
+ \@PackageInfoNoLine\pkgname\msgtext
+ \TestWrite\@PackageInfoNoLine{-1}{%
+ Package PACKAGE Info: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~SECOND LINE.%
+ }%
+ \@ClassInfo\clsname\msgtext
+ \TestWrite\@ClassInfo{-1}{%
+ Class CLASS Info: MESSAGE^^J%
+ (CLASS)~~~~~~~~~~~SECOND LINE on input line \the\inputlineno.%
+ }%
+ \@ClassInfoNoLine\clsname\msgtext
+ \TestWrite\@ClassInfoNoLine{-1}{%
+ Class CLASS Info: MESSAGE^^J%
+ (CLASS)~~~~~~~~~~~SECOND LINE.%
+ }%
+}
+\def\TestWarning{%
+ \@PackageWarning\pkgname\msgtext
+ \TestWrite\@PackageWarning\WriteUnused{%
+ ^^J%
+ Package PACKAGE Warning: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~~~~SECOND LINE on input line \the\inputlineno.%
+ ^^J%
+ }%
+ \@PackageWarningNoLine\pkgname\msgtext
+ \TestWrite\@PackageWarningNoLine\WriteUnused{%
+ ^^J%
+ Package PACKAGE Warning: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~~~~SECOND LINE.%
+ ^^J%
+ }%
+ \@ClassWarning\clsname\msgtext
+ \TestWrite\@ClassWarning\WriteUnused{%
+ ^^J%
+ Class CLASS Warning: MESSAGE^^J%
+ (CLASS)~~~~~~~~~~~~~~SECOND LINE on input line \the\inputlineno.%
+ ^^J%
+ }%
+ \@ClassWarningNoLine\clsname\msgtext
+ \TestWrite\@ClassWarningNoLine\WriteUnused{%
+ ^^J%
+ Class CLASS Warning: MESSAGE^^J%
+ (CLASS)~~~~~~~~~~~~~~SECOND LINE.%
+ ^^J%
+ }%
+}
+\def\TestError{%
+%<test2> \let\write\OrgWrite
+ \@PackageError\pkgname\msgtext\hlptext
+ \@TestError\@PackageError{%
+ ! Package PACKAGE Error: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~~~~SECOND LINE.^^J%
+ ^^J%
+ See the PACKAGE package documentation for explanation.^^J%
+ Type~~H <return>~~for immediate help%
+ }{%
+ HELP^^J%
+ SECOND LINE%
+ }%
+ \@ClassError\clsname\msgtext\hlptext
+ \@TestError\@ClassError{%
+ ! Class CLASS Error: MESSAGE^^J%
+ (CLASS)~~~~~~~~~~~~~~SECOND LINE.^^J%
+ ^^J%
+ See the CLASS class documentation for explanation.^^J%
+ Type~~H <return>~~for immediate help%
+ }{%
+ HELP^^J%
+ SECOND LINE%
+ }%
+ \@PackageError\pkgname\msgtext\@ehc
+ \@TestError\@PackageError{%
+ ! Package PACKAGE Error: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~~~~SECOND LINE.^^J%
+ ^^J%
+ See the PACKAGE package documentation for explanation.^^J%
+ Type~~H <return>~~for immediate help%
+ }{%
+ Try typing~~<return>~~to proceed.^^J%
+ If that doesn't work, type~~X <return>~~to quit.%
+ }%
+ \@PackageError\pkgname\msgtext\@ehd
+ \@TestError\@PackageError{%
+ ! Package PACKAGE Error: MESSAGE^^J%
+ (PACKAGE)~~~~~~~~~~~~~~~~SECOND LINE.^^J%
+ ^^J%
+ See the PACKAGE package documentation for explanation.^^J%
+ Type~~H <return>~~for immediate help%
+ }{%
+ You're in trouble here.~~Try typing~~<return>~~to proceed.^^J%
+ If that doesn't work, type~~X <return>~~to quit.%
+ }%
+}
+\def\@TestError#1#2#3{%
+ \begingroup
+ \let~\space
+ \edef\x{#2}%
+%<test2> \@onelevel@sanitize\x
+%<test2> \@onelevel@sanitize\ErrMessage
+ \ifx\x\ErrMessage
+ \else
+ \msg{}%
+ \msg{[\ErrMessage]}%
+ \msg{<>}%
+ \msg{[\x]}%
+ \TestFailed#1{errmessage text}%
+ \fi
+ \edef\x{\the\ErrHelpToks}%
+ \edef\y{#3}%
+ \ifx\x\y
+ \else
+ \msg{}%
+ \msg{[\the\ErrHelpToks]}%
+ \msg{<>}%
+ \msg{[\y]}%
+ \TestFailed#1{errhelp text}%
+ \fi
+ \endgroup
+}
+\TestInfo
+\TestWarning
+\TestError
+%</test1|test2>
+%<test1>\end
+%<test2>\@@end
+% \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/infwarerr.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/oberdiek/infwarerr.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 infwarerr.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@{}}
+% infwarerr.sty & tex/generic/oberdiek/infwarerr.sty\\
+% infwarerr.pdf & doc/latex/oberdiek/infwarerr.pdf\\
+% infwarerr-test1.tex & doc/latex/oberdiek/infwarerr-test1.tex\\
+% infwarerr-test2.tex & doc/latex/oberdiek/infwarerr-test2.tex\\
+% infwarerr.dtx & source/latex/oberdiek/infwarerr.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 infwarerr.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{infwarerr.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 infwarerr.dtx
+%makeindex -s gind.ist infwarerr.idx
+%pdflatex infwarerr.dtx
+%makeindex -s gind.ist infwarerr.idx
+%pdflatex infwarerr.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \begin{History}
+% \begin{Version}{2007/04/26 v1.0}
+% \item
+% First version.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput