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+% \iffalse meta-comment
+%
+% Copyright (C) 2005, 2006 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 setouterhbox.dtx
+% and the derived files
+% setouterhbox.sty, setouterhbox.pdf, setouterhbox.ins, setouterhbox.drv,
+% setouterhbox-example.tex.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/oberdiek/setouterhbox.dtx
+% CTAN:macros/latex/contrib/oberdiek/setouterhbox.pdf
+%
+% Unpacking:
+% (a) If setouterhbox.ins is present:
+% tex setouterhbox.ins
+% (b) Without setouterhbox.ins:
+% tex setouterhbox.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{setouterhbox.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If setouterhbox.drv is present:
+% latex setouterhbox.drv
+% (b) Without setouterhbox.drv:
+% latex setouterhbox.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 setouterhbox.dtx
+% makeindex -s gind.ist setouterhbox.idx
+% pdflatex setouterhbox.dtx
+% makeindex -s gind.ist setouterhbox.idx
+% pdflatex setouterhbox.dtx
+%
+% Installation:
+% TDS:tex/generic/oberdiek/setouterhbox.sty
+% TDS:doc/latex/oberdiek/setouterhbox.pdf
+% TDS:doc/latex/oberdiek/setouterhbox-example.tex
+% TDS:source/latex/oberdiek/setouterhbox.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: setouterhbox 2006/08/26 v1.4 Set hbox in outer horizontal mode (HO)}
+\Msg{************************************************************************}
+
+\keepsilent
+\askforoverwritefalse
+
+\preamble
+
+This is a generated file.
+
+Copyright (C) 2005, 2006 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 setouterhbox.dtx
+and the derived files
+ setouterhbox.sty, setouterhbox.pdf, setouterhbox.ins, setouterhbox.drv,
+ setouterhbox-example.tex.
+
+\endpreamble
+
+\generate{%
+ \file{setouterhbox.ins}{\from{setouterhbox.dtx}{install}}%
+ \file{setouterhbox.drv}{\from{setouterhbox.dtx}{driver}}%
+ \usedir{tex/generic/oberdiek}%
+ \file{setouterhbox.sty}{\from{setouterhbox.dtx}{package}}%
+ \usedir{doc/latex/oberdiek}%
+ \file{setouterhbox-example.tex}{\from{setouterhbox.dtx}{example}}%
+}
+
+\obeyspaces
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* setouterhbox.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `setouterhbox.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{setouterhbox.drv}%
+ [2006/08/26 v1.4 Set hbox in outer horizontal mode (HO)]
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}
+\begin{document}
+ \DocInput{setouterhbox.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{322}
+%
+% \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{setouterhbox.drv}
+%
+% \title{The \xpackage{setouterhbox} package}
+% \date{2006/08/26 v1.4}
+% \author{Heiko Oberdiek\\\xemail{oberdiek@uni-freiburg.de}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% If math stuff is set in an \cs{hbox}, then TeX
+% performs some optimization and omits the implicite
+% penalties \cs{binoppenalty} and \cs{relpenalty}.
+% This packages tries to put stuff into an \cs{hbox}
+% without getting lost of those penalties.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% \subsection{Introduction}
+%
+% There is a situation in \xpackage{hyperref}'s driver for dvips
+% where the user wants to have links that can be broken across
+% lines. However dvips doesn't support the feature. With option
+% \xoption{breaklinks} \xpackage{hyperref} sets the links as
+% usual, put them in a box and write the link data with
+% box dimensions into the appropriate \cs{special}s.
+% Then, however, it does not set the complete unbreakable
+% box, but it unwrappes the material inside to allow line
+% breaks. Of course line breaking and glue setting will falsify
+% the link dimensions, but line breaking was more important
+% for the user.
+%
+% \subsection{Acknowledgement}
+%
+% Jonathan Fine, Donald Arsenau and me discussed the problem
+% in the newsgroup \xnewsgroup{comp.text.tex} where Damian
+% Menscher has started the thread, see \cite{newsstart}.
+%
+% The discussion was productive and generated many ideas
+% and code examples. In order to have a more permanent
+% result I wrote this package and tried to implement
+% most of the ideas, a kind of summary of the discussion.
+% Thus I want and have to thank Jonathan Fine and Donald Arsenau
+% very much.
+%
+% Two weeks later David Kastrup (posting in
+% \xnewsgroup{comp.text.tex}, \cite{kastrup})
+% remembered an old article of Michael Downes (\cite{downes})
+% in TUGboat, where Michael Downes already presented the
+% method we discuss here. Nowadays we have \eTeX\ that extends
+% the tool set of a \TeX\ macro programmer. Especially useful
+% \eTeX\ was in this package for detecting and dealing with
+% errorneous situations.
+%
+% However also nowadays a perfect solution for the problem
+% is still missing at macro level. Probably someone has
+% to go deep in the internals of the \TeX\ compiler to
+% implement a switch that let penalties stay where otherwise
+% \TeX\ would remove them for optimization reasons.
+%
+% \subsection{Usage}
+%
+% \paragraph{Package loading.}
+% \LaTeX: as usually:
+% \begin{quote}
+% |\usepackage{setouterhbox}|
+% \end{quote}
+% The package can also be included directly, thus \plainTeX\ users
+% write:
+% \begin{quote}
+% |\input setouterhbox.sty|
+% \end{quote}
+%
+% \paragraph{Register allocation.}
+% The material will be put into a box, thus we need to know these
+% box number. If you need to allocate a new box register:
+% \begin{description}
+% \item[\LaTeX:] |\newsavebox{\|\meta{name}|}|
+% \item[\plainTeX:] |\newbox\|\meta{name}
+% \end{description}
+% Then |\|\meta{name} is a command that held the box number.
+%
+% \paragraph{Box wrapping.}
+% \LaTeX\ users put the material in the box with an environment
+% similar to \texttt{lrbox}. The environment \texttt{setouterhbox}
+% uses the same syntax and offers the same features, such
+% as verbatim stuff inside:
+% \begin{quote}
+% |\begin{setouterhbox}{|\meta{box number}|}|\dots
+% |\end{setouterhbox}|
+% \end{quote}
+% Users with \plainTeX\ do not have environments, they use instead:
+% \begin{quote}
+% |setouterhbox{|\meta{box number}|}|\dots|\endsetouterhbox|
+% \end{quote}
+% In both cases the material is put into an \cs{hbox} and assigned
+% to the given box, denoted by \meta{box number}. Note the
+% assignment is local, the same way \texttt{lrbox} behaves.
+%
+% \paragraph{Unwrapping.}
+% The box material is ready for unwrapping:
+% \begin{quote}
+% |\unhbox\|\meta{box number}
+% \end{quote}
+%
+% \subsection{Option \xoption{hyperref}}
+%
+% Package url uses math mode for typesetting urls.
+% Break points are inserted by \cs{binoppenalty} and
+% \cs{relpenalty}. Unhappily these break points are
+% removed, if \xpackage{hyperref}
+% is used with option {breaklinks}
+% and drivers that depend on \xoption{pdfmark}:
+% \xoption{dvips}, \xoption{vtexpdfmark}, \xoption{textures},
+% and \xoption{dvipsone}.
+% Thus the option \xoption{hyperref} enables the method
+% of this package to avoid the removal of \cs{relpenalty}
+% and \cs{binoppenalty}. Thus you get more break points.
+% However, the link areas are still wrong for these
+% drivers, because they are not supporting broken
+% links.
+%
+% Note, you need version 2006/08/16 v6.75c of package \xpackage{hyperref},
+% because starting with this version the necessary hook is provided
+% that package \xpackage{setouterhbox} uses.
+% \begin{quote}
+% |\usepackage[|\dots|]{hyperref}[2006/08/16]|\\
+% |\usepackage[hyperref]{setouterhbox}|
+% \end{quote}
+% Package order does not matter.
+%
+% \subsection{Example}
+%
+% \begin{macrocode}
+%<*example>
+\documentclass[a5paper]{article}
+\usepackage{url}[2005/06/27]
+\usepackage{setouterhbox}
+
+\newsavebox{\testbox}
+
+\setlength{\parindent}{0pt}
+\setlength{\parskip}{2em}
+
+\begin{document}
+\raggedright
+
+\url{http://this.is.a.very.long.host.name/followed/%
+by/a/very_long_long_long_path.html}%
+
+\sbox\testbox{%
+ \url{http://this.is.a.very.long.host.name/followed/%
+ by/a/very_long_long_long_path.html}%
+}%
+\unhbox\testbox
+
+\begin{setouterhbox}{\testbox}%
+ \url{http://this.is.a.very.long.host.name/followed/%
+ by/a/very_long_long_long_path.html}%
+\end{setouterhbox}
+\unhbox\testbox
+
+\end{document}
+%</example>
+% \end{macrocode}
+%
+% \StopEventually{
+% }
+%
+% \section{Implementation}
+%
+% Internal macros are prefixed by \cs{setouterhbox}, |@| is
+% not used inside names, thus we do not need to care of its
+% catcode if we are not using it as \LaTeX\ package.
+%
+% \subsection{Package start stuff}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+% Prevent reloading more than one, necessary for \plainTeX:
+% \begin{macrocode}
+\begingroup
+ \expandafter\let\expandafter\x\csname ver@setouterhbox.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{setouterhbox}{The package is already loaded}%
+ \endgroup
+ \expandafter\endinput
+ \fi
+\endgroup
+% \end{macrocode}
+%
+% Package identification:
+% \begin{macrocode}
+\begingroup
+ \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@setouterhbox.sty\endcsname
+\ProvidesPackage{setouterhbox}%
+ [2006/08/26 v1.4 Set hbox in outer horizontal mode (HO)]
+% \end{macrocode}
+%
+% \begin{macro}{\setouterhboxBox}
+% The method requires a global box assignment. To be on the
+% safe side, a new box register is allocated for this
+% global box assignment.
+% \begin{macrocode}
+\newbox\setouterhboxBox
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\setouterhboxFailure}
+% Error message for both \plainTeX\ and \LaTeX
+% \begin{macrocode}
+\def\setouterhboxFailure#1#2{%
+ \begingroup
+ \expandafter\ifx\csname PackageError\endcsname\relax
+ \def\MessageBreak{^^J}%
+ \newlinechar=10\relax
+ \edef\z{#2}%
+ \errhelp\expandafter{\z}%
+ \errmessage{Package setouterhbox Error: #1}%
+ \else
+ \PackageError{setouterhbox}{#1}{#2}%
+ \fi
+ \endgroup
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Main part}
+%
+% eTeX provides much better means for checking
+% error conditions. Thus lines marked by "E" are executed
+% if eTeX is available, otherwise the lines marked by "T" are
+% used.
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname lastnodetype\endcsname\relax
+ \catcode`T=9 % ignore
+ \catcode`E=14 % comment
+\else
+ \catcode`T=14 % comment
+ \catcode`E=9 % ignore
+\fi
+% \end{macrocode}
+%
+% \begin{macro}{\setouterhboxRemove}
+% Remove all kern, glue, and penalty nodes;
+% poor man's version, if \eTeX\ is not available
+% \begin{macrocode}
+\def\setouterhboxRemove{%
+E \ifnum\lastnodetype<11 %
+E \else
+E \ifnum\lastnodetype>13 %
+E \else
+ \unskip\unkern\unpenalty
+E \expandafter\expandafter\expandafter\setouterhboxRemove
+E \fi
+E \fi
+}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\setouterhbox}
+% Passing the box contents by macro parameter would prevent
+% catcode changes in the box contents like by \cs{verb}.
+% Also \cs{bgroup} and \cs{egroup} does not work, because stuff
+% has to be added at the begin and end of the box, thus
+% the syntax
+% |\setouterhbox{|\meta{box number}|}|\dots|\endsetouterhbox|
+% is used. Also we automatically get an environment \texttt{setouterhbox}
+% if \LaTeX\ is used.
+% \begin{macrocode}
+\def\setouterhbox#1{%
+ \begingroup
+ \def\setouterhboxNum{#1}%
+ \setbox0\vbox\bgroup
+T \kern.123pt\relax % marker
+T \kern0pt\relax % removed by \setouterhboxRemove
+ \begingroup
+ \everypar{}%
+ \noindent
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\endsetouterhbox}
+% Most of the work is done in the end part, thus the heart of
+% the method follows:
+% \begin{macrocode}
+\def\endsetouterhbox{%
+ \endgroup
+% \end{macrocode}
+% Omit the first pass to get the penalties
+% of the second pass.
+% \begin{macrocode}
+ \pretolerance-1 %
+% \end{macrocode}
+% We don't want a third pass with \cs{emergencystretch}.
+% \begin{macrocode}
+ \tolerance10000 %
+ \hsize\maxdimen
+% \end{macrocode}
+% Line is not underfull:
+% \begin{macrocode}
+ \parfillskip 0pt plus 1filll\relax
+ \leftskip0pt\relax
+% \end{macrocode}
+% Suppress underful \cs{hbox} warnings,
+% is explicit line breaks are used.
+% \begin{macrocode}
+ \rightskip0pt plus 1fil\relax
+ \everypar{}%
+% \end{macrocode}
+% Ensure that there is a paragraph and
+% prevents \cs{endgraph} from eating terminal glue:
+% \begin{macrocode}
+ \kern0pt%
+ \endgraf
+ \setouterhboxRemove
+E \ifnum\lastnodetype=1 %
+E \global\setbox\setouterhboxBox\lastbox
+E \loop
+E \setouterhboxRemove
+E \ifnum\lastnodetype=1 %
+E \setbox0=\lastbox
+E \global\setbox\setouterhboxBox=\hbox{%
+E \unhbox0 %
+% \end{macrocode}
+% Remove \cs{rightskip}, a penalty with -10000 is part of the previous line.
+% \begin{macrocode}
+E \unskip
+E \unhbox\setouterhboxBox
+E }%
+E \repeat
+E \else
+E \setouterhboxFailure{%
+E Something is wrong%
+E }{%
+E Could not find expected line.%
+E \MessageBreak
+E (\string\lastnodetype: \number\lastnodetype, expected: 1)%
+E }%
+E \fi
+E \setouterhboxRemove
+T \global\setbox\setouterhboxBox\lastbox
+T \loop
+T \setouterhboxRemove
+T \setbox0=\lastbox
+T \ifcase\ifvoid0 1\else0\fi
+T \global\setbox\setouterhboxBox=\hbox{%
+T \unhbox0 %
+% \end{macrocode}
+% Remove \cs{rightskip}, a penalty with -10000 is part of the previous line.
+% \begin{macrocode}
+T \unskip
+T \unhbox\setouterhboxBox
+T }%
+T \repeat
+T \ifdim.123pt=\lastkern
+T \else
+T \setouterhboxFailure{%
+T Something is wrong%
+T }{%
+T Unexpected stuff was detected before the line.%
+T }%
+T \fi
+T \egroup
+T \ifcase \ifnum\wd0=0 \else 1\fi
+T \ifdim\ht0=.123pt \else 1\fi
+T \ifnum\dp0=0 \else 1\fi
+T 0 %
+E \ifnum\lastnodetype=-1 %
+% \end{macrocode}
+% There was just one line that we have caught.
+% \begin{macrocode}
+ \else
+ \setouterhboxFailure{%
+ Something is wrong%
+ }{%
+ After fetching the line there is more unexpected stuff.%
+E \MessageBreak
+E (\string\lastnodetype: \number\lastnodetype, expected: -1)%
+ }%
+ \fi
+E \egroup
+ \expandafter\endgroup
+ \expandafter\setouterhboxFinish\expandafter{%
+ \number\setouterhboxNum
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Environment support}
+%
+% Check \cs{@currenvir} for the case that \cs{setouterhbox}
+% was called as environment. Then the box assignment
+% must be put after the \cs{endgroup} of |\end{|\dots|}|.
+% \begin{macrocode}
+\def\setouterhboxCurr{setouterhbox}
+\def\setouterhboxLast#1{%
+ \setbox#1\hbox{%
+ \unhbox\setouterhboxBox
+ \unskip % remove \rightskip glue
+ \unskip % remove \parfillskip glue
+ \unpenalty % remove paragraph ending \penalty 10000
+ \unkern % remove explicit kern inserted above
+ }%
+}
+% \end{macrocode}
+% \begin{macro}{\setouterhboxFinish}
+% |#1| is an explicit number.
+% \begin{macrocode}
+\def\setouterhboxFinish#1{%
+ \begingroup\expandafter\expandafter\expandafter\endgroup
+ \expandafter\ifx\csname @currenvir\endcsname\setouterhboxCurr
+ \aftergroup\setouterhboxLast
+ \aftergroup{%
+ \setouterhboxAfter #1\NIL
+ \aftergroup}%
+ \else
+ \setouterhboxLast{#1}%
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\setouterhboxAfter}
+% |#1| is an explicit number.
+% \begin{macrocode}
+\def\setouterhboxAfter#1#2\NIL{%
+ \aftergroup#1%
+ \ifx\\#2\\%
+ \else
+ \setouterhboxReturnAfterFi{%
+ \setouterhboxAfter#2\NIL
+ }%
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\setouterhboxReturnAfterFi}
+% A utility macro to get tail recursion.
+% \begin{macrocode}
+\long\def\setouterhboxReturnAfterFi#1\fi{\fi#1}
+% \end{macrocode}
+% \end{macro}
+% Restore catcodes we have need to distinguish between
+% the implementation with and without \eTeX.
+% \begin{macrocode}
+\catcode69=11\relax % E
+\catcode84=11\relax % T
+% \end{macrocode}
+%
+% \subsection{Option \xoption{hyperref}}
+% \begin{macrocode}
+\begingroup
+ \def\x{LaTeX2e}%
+\expandafter\endgroup
+\ifx\x\fmtname
+\else
+ \expandafter\endinput
+\fi
+% \end{macrocode}
+% \begin{macro}{\Hy@setouterhbox}
+% \cs{Hy@setouterhbox} is the internal hook that \xpackage{hyperref}
+% uses since 2006/02/12 v6.75a.
+% \begin{macrocode}
+\DeclareOption{hyperref}{%
+ \long\def\Hy@setouterhbox#1#2{%
+ \setouterhbox{#1}#2\endsetouterhbox
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+\ProcessOptions\relax
+% \end{macrocode}
+%
+% \begin{macrocode}
+%</package>
+% \end{macrocode}
+% \section{Installation}
+%
+% \paragraph{CTAN.} This package is available on
+% CTAN\footnote{\url{ftp://ftp.ctan.org/tex-archive/}}:
+% \begin{description}
+% \item[\CTAN{macros/latex/contrib/oberdiek/setouterhbox.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/oberdiek/setouterhbox.pdf}] Documentation.
+% \end{description}
+%
+% \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 setouterhbox.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@{}}
+% setouterhbox.sty & tex/generic/oberdiek/setouterhbox.sty\\
+% setouterhbox.pdf & doc/latex/oberdiek/setouterhbox.pdf\\
+% setouterhbox-example.tex & doc/latex/oberdiek/setouterhbox-example.tex\\
+% setouterhbox.dtx & source/latex/oberdiek/setouterhbox.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.
+%
+% \paragraph{Refresh file databases.} If your \TeX~distribution
+% (\teTeX, \mikTeX, \dots) rely on file 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 setouterhbox.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 intension:
+% \begin{quote}
+% \verb|latex \install=y\input{setouterhbox.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 setouterhbox.dtx
+%makeindex -s gind.ist setouterhbox.idx
+%pdflatex setouterhbox.dtx
+%makeindex -s gind.ist setouterhbox.idx
+%pdflatex setouterhbox.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \begin{thebibliography}{9}
+%
+% \bibitem{newsstart}
+% Damian Menscher, \Newsgroup{comp.text.tex},
+% \textit{overlong lines in List of Figures},
+% \nolinkurl{<dh058t$qbd$1@news.ks.uiuc.edu>},
+% 23rd September 2005.
+% \url{http://groups.google.com/group/comp.text.tex/msg/79648d4cf1f8bc13}
+%
+% \bibitem{kastrup}
+% David Kastrup, \Newsgroup{comp.text.tex},
+% \textit{Re: ANN: outerhbox.sty -- collect horizontal material,
+% for unboxing into a paragraph},
+% \nolinkurl{<85y855lrx3.fsf@lola.goethe.zz>},
+% 7th October 2005.
+% \url{http://groups.google.com/group/comp.text.tex/msg/7cf0a345ef932e52}
+%
+% \bibitem{downes}
+% Michael Downes, \textit{Line breaking in \cs{unhbox}ed Text},
+% TUGboat 11 (1990), pp. 605--612.
+%
+% \bibitem{hyperref}
+% Sebastian Rahtz, Heiko Oberdiek:
+% \textit{The \xpackage{hyperref} package};
+% 2006/08/16 v6.75c;
+% \CTAN{macros/latex/contrib/hyperref/}.
+%
+% \end{thebibliography}
+%
+% \begin{History}
+% \begin{Version}{2005/10/05 v1.0}
+% \item
+% First version.
+% \end{Version}
+% \begin{Version}{2005/10/07 v1.1}
+% \item
+% Option \xoption{hyperref} added.
+% \end{Version}
+% \begin{Version}{2005/10/18 v1.2}
+% \item
+% Support for explicit line breaks added.
+% \end{Version}
+% \begin{Version}{2006/02/12 v1.3}
+% \item
+% DTX format.
+% \item
+% Documentation extended.
+% \end{Version}
+% \begin{Version}{2006/08/26 v1.4}
+% \item
+% Date of hyperref updated.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput