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authorNorbert Preining <norbert@preining.info>2019-12-05 03:00:50 +0000
committerNorbert Preining <norbert@preining.info>2019-12-05 03:00:50 +0000
commit2905ee4c8de47cfdeea4787e465eb827f9b99e8b (patch)
tree802c26d7002fd7e2188412b5bd1f86cd9ee2c4d6 /macros/latex/contrib/mleftright
parent05ad7831f64aa0e2fc9eac63816eeafcb0b09708 (diff)
CTAN sync 201912050300
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-rw-r--r--macros/latex/contrib/mleftright/README.md12
-rw-r--r--macros/latex/contrib/mleftright/mleftright.dtx815
-rw-r--r--macros/latex/contrib/mleftright/mleftright.pdfbin0 -> 309397 bytes
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diff --git a/macros/latex/contrib/mleftright/README.md b/macros/latex/contrib/mleftright/README.md
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+# mleftright
+
+mleftright package for LaTeX
+
+
+TeX sets subformulas by \left and \right as inner formulas
+with additional surrounding spaces in some situations. This package
+provides \mleft and \mright that call \left and \right,
+but the delimiters will act as normal \mathopen and \mathclose
+delimiters without the additional space of an inner formula.
+
+
diff --git a/macros/latex/contrib/mleftright/mleftright.dtx b/macros/latex/contrib/mleftright/mleftright.dtx
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--- /dev/null
+++ b/macros/latex/contrib/mleftright/mleftright.dtx
@@ -0,0 +1,815 @@
+% \iffalse meta-comment
+%
+% File: mleftright.dtx
+% Version: 2019/12/03 v1.2
+% Info: Math left/right delim. as open/close
+%
+% Copyright (C)
+% 2010 Heiko Oberdiek
+% 2016-2019 Oberdiek Package Support Group
+% https://github.com/ho-tex/mleftright/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/mleftright/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 mleftright.dtx
+% and the derived files
+% mleftright.sty, mleftright.pdf, mleftright.ins, mleftright.drv,
+% mleftright-test1.tex.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/mleftright/mleftright.dtx
+% CTAN:macros/latex/contrib/mleftright/mleftright.pdf
+%
+% Unpacking:
+% (a) If mleftright.ins is present:
+% tex mleftright.ins
+% (b) Without mleftright.ins:
+% tex mleftright.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{mleftright.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If mleftright.drv is present:
+% latex mleftright.drv
+% (b) Without mleftright.drv:
+% latex mleftright.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 mleftright.dtx
+% makeindex -s gind.ist mleftright.idx
+% pdflatex mleftright.dtx
+% makeindex -s gind.ist mleftright.idx
+% pdflatex mleftright.dtx
+%
+% Installation:
+% TDS:tex/generic/mleftright/mleftright.sty
+% TDS:doc/latex/mleftright/mleftright.pdf
+% TDS:source/latex/mleftright/mleftright.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: mleftright 2019/12/03 v1.2 Math left/right delim. as open/close (HO)}
+\Msg{************************************************************************}
+
+\keepsilent
+\askforoverwritefalse
+
+\let\MetaPrefix\relax
+\preamble
+
+This is a generated file.
+
+Project: mleftright
+Version: 2019/12/03 v1.2
+
+Copyright (C)
+ 2010 Heiko Oberdiek
+ 2016-2019 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/mleftright/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 mleftright.dtx
+and the derived files
+ mleftright.sty, mleftright.pdf, mleftright.ins, mleftright.drv,
+ mleftright-test1.tex.
+
+\endpreamble
+\let\MetaPrefix\DoubleperCent
+
+\generate{%
+ \file{mleftright.ins}{\from{mleftright.dtx}{install}}%
+ \file{mleftright.drv}{\from{mleftright.dtx}{driver}}%
+ \usedir{tex/generic/mleftright}%
+ \file{mleftright.sty}{\from{mleftright.dtx}{package}}%
+% \usedir{doc/latex/mleftright/test}%
+% \file{mleftright-test1.tex}{\from{mleftright.dtx}{test1}}%
+}
+
+\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{* mleftright.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `mleftright.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{mleftright.drv}%
+ [2019/12/03 v1.2 Math left/right delim. as open/close (HO)]%
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}[2011/11/22]
+\usepackage{mleftright}[2019/12/03]
+\begin{document}
+ \DocInput{mleftright.dtx}%
+\end{document}
+%</driver>
+% \fi
+%
+%
+%
+% \GetFileInfo{mleftright.drv}
+%
+% \title{The \xpackage{mleftright} package}
+% \date{2019/12/03 v1.2}
+% \author{Heiko Oberdiek\thanks
+% {Please report any issues at \url{https://github.com/ho-tex/mleftright/issues}}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% \TeX\ sets subformulas by \cs{left} and \cs{right} as inner formulas
+% with additional surrounding spaces in some situations. This package
+% provides \cs{mleft} and \cs{mright} that call \cs{left} and \cs{right},
+% but the delimiters will act as normal \cs{mathopen} and \cs{mathclose}
+% delimiters without the additional space of an inner formula.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% The package is a result of a thread in the newsgroup \textsf{comp.text.tex}
+% with the subject \textit{spacing after \cs{right}\texttt{)}
+% and before \cs{left}\texttt{)}} \cite{dave}.
+% The problem: \cs{left} and \cs{right} adjust the size of the
+% delimiters automatically. However, \TeX\ treats the whole expression
+% as inner formula. In some circumstances \TeX\ adds extra space
+% before or after an inner formula.
+% Example:
+% \begin{quote}
+% \thinmuskip=1.5\thinmuskip
+% \begin{tabular}{@{}l@{\quad$\Rightarrow$\quad}l@{}}
+% |$\sin(x^2), x$|
+% & $\sin(x^2), x$\\
+% |$\sin\left(x^2\right), x$|
+% & $\sin\left(x^2\right), x$\\
+% ^^A \multicolumn{1}{@{}r@{\quad$\Rightarrow$\quad}}{^^A
+% ^^A \itshape with exaggerated spacing^^A
+% ^^A }
+% ^^A & $\thinmuskip=4\thinmuskip
+% ^^A \sin\left(x^2\right){,}\mskip.25\thinmuskip x$\\
+% |$\sin\mleft(x^2\mright), x$|
+% & $\sin\mleft(x^2\mright), x$\\
+% \end{tabular}\\*[.5ex]
+% (\cs{mleft} and \cs{mright} are provided by this package.)
+% \end{quote}
+%
+% In the newsgroup Donald Arseneau answered with clever macros \cite{arseneau}:
+% \begin{quote}
+%\begin{verbatim}
+%\newcommand\lft{\mathopen{}\left}
+%\newcommand\rgt{\aftergroup\mathclose\aftergroup{\aftergroup}\right}
+%\end{verbatim}
+% \end{quote}
+% However one problem remains, a following subscript or superscript
+% is not applied to the right delimiter but the empty
+% \cs{mathclose}.
+% Thus Philipp Stephani provided an improvement \cite{stephani}:
+%\begin{quote}
+%\begin{verbatim}
+%\mathopen{} \mathclose{\left\| A^2 \right\|}_2
+%\end{verbatim}
+%\end{quote}
+% Heiko Oberdiek converted this into macro form \cite{oberdiek}:
+%\begin{quote}
+%\begin{verbatim}
+%\newcommand\lft{\mathopen{}\mathclose\bgroup\left}
+%\newcommand\rgt{\aftergroup\egroup\right}
+%\end{verbatim}
+%\end{quote}
+%
+% The package uses longer macro names \cs{mleft} and \cs{mright}
+% to avoid name clashes. Also it adds some checks for error conditions.
+%
+% \subsection{Use}
+%
+% \begin{declcs}{mleft}\meta{delimL} \dots\unkern\ \cs{mright}\meta{delimR}
+% \end{declcs}
+% Macros \cs{mleft} and \cs{mright} are used in the same way as
+% \cs{left} and \cs{right}. Also \cs{middle} can be used inbetween if
+% \eTeX\ is present.
+%
+% \begin{declcs}{mleftright}
+% \end{declcs}
+% Macro \cs{mleftright} redefines \cs{left} as \cs{mleft} and
+% \cs{right} as \cs{mright}. The redefinition is local to the group.
+%
+% \begin{declcs}{mleftrightrestore}
+% \end{declcs}
+% Macro \cs{mleftright} restores \cs{left} and \cs{right} with
+% the original meaning if they were previously redefined by
+% \cs{mleftright} (also locally).
+%
+%
+% \StopEventually{
+% }
+%
+% \section{Implementation}
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+% 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@mleftright.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{mleftright}{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@mleftright.sty\endcsname
+\ProvidesPackage{mleftright}%
+ [2019/12/03 v1.2 Math left/right delim. as open/close (HO)]%
+% \end{macrocode}
+%
+% \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 mleftright@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\mleftright@AtEnd{%
+ \mleftright@AtEnd
+ \catcode#1=\the\catcode#1\relax
+ }%
+ \catcode#1=#2\relax
+}
+\TMP@EnsureCode{38}{4}% &
+\TMP@EnsureCode{39}{12}% '
+\TMP@EnsureCode{40}{12}% (
+\TMP@EnsureCode{41}{12}% )
+\TMP@EnsureCode{42}{12}% *
+\TMP@EnsureCode{43}{12}% +
+\TMP@EnsureCode{44}{12}% ,
+\TMP@EnsureCode{45}{12}% -
+\TMP@EnsureCode{46}{12}% .
+\TMP@EnsureCode{47}{12}% /
+\TMP@EnsureCode{60}{12}% <
+\TMP@EnsureCode{91}{12}% [
+\TMP@EnsureCode{93}{12}% ]
+\edef\mleftright@AtEnd{%
+ \mleftright@AtEnd
+ \escapechar\the\escapechar\relax
+ \noexpand\endinput
+}
+\escapechar=92 %
+% \end{macrocode}
+%
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+ \input infwarerr.sty\relax
+ \input ltxcmds.sty\relax
+\else
+ \RequirePackage{infwarerr}[2010/04/08]%
+ \RequirePackage{ltxcmds}[2010/04/26]%
+\fi
+% \end{macrocode}
+%
+% The original commands \cs{left} and \cs{right}
+% are saved and later used in \cs{mleft} and
+% \cs{mright} in order to deal with:
+% \begin{quote}
+%\begin{verbatim}
+%\let\left\mleft
+%\let\right\mright
+%\end{verbatim}
+% \end{quote}
+% \begin{macro}{\mleftright@OrgLeft}
+% \begin{macrocode}
+\let\mleftright@OrgLeft\left
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\mleftright@OrgRight}
+% \begin{macrocode}
+\let\mleftright@OrgRight\right
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\mleftright@Def}
+% Macro \cs{mleftright@Def} defines a macro as robust macro
+% if \eTeX\ or \LaTeX\ is available.
+% \begin{macrocode}
+\ltx@IfUndefined{protected}{%
+ \ltx@IfUndefined{DeclareRobustCommand}{%
+ \def\mleftright@Def{\def}%
+ }{%
+ \def\mleftright@Def{\DeclareRobustCommand*}%
+ }%
+}{%
+ \def\mleftright@Def{\protected\def}%
+}
+\edef\mleftright@Def#1{%
+ \noexpand\ltx@IfUndefined{%
+ \noexpand\expandafter\noexpand\ltx@gobble\noexpand\string#1%
+ }{%
+ \expandafter\noexpand\mleftright@Def#1%
+ }{%
+ \noexpand\@PackageError{mleftright}{%
+ Command \noexpand\string#1 already defined%
+ }\noexpand\@ehd
+ \noexpand\ltx@gobble
+ }%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% In case of \eTeX\ the group status after the left symbol
+% is saved and later checked at the beginning of \cs{mright}.
+% \begin{macrocode}
+\ltx@IfUndefined{currentgrouplevel}{%
+ \catcode38=14 % & = comment
+}{%
+ \catcode38=9 % & = ignore
+}
+% \end{macrocode}
+%
+% \begin{macro}{\mleftright@GroupLevel}
+% \begin{macrocode}
+& \def\mleftright@GroupLevel{-1}%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\mleftright@WrongGroup}
+% \begin{macrocode}
+& \def\mleftright@WrongGroup#1(#2){%
+& \ifnum\mleftright@GroupLevel<\ltx@zero
+& \@PackageError{mleftright}{%
+& Missing previous \string\mleft
+& }\@ehc
+& \else
+& \@PackageError{mleftright}{%
+& Unexpected group status for \string\mright%
+& \ifnum\mleftright@GroupLevel=#1 %
+& \else
+& .\MessageBreak
+& Group level is #1, %
+& expected is \mleftright@GroupLevel
+& \fi
+& \ifnum16=#2 %
+& \else
+& .\MessageBreak
+& Group type is #2 (%
+& \ifcase#2 %
+& bottom level%
+& \expandafter\expandafter\expandafter\ltx@gobblefour
+& \expandafter\ltx@gobbletwo
+& \or simple%
+& \or hbox%
+& \or adjusted hbox%
+& \or vbox%
+& \or vtop%
+& \or align%
+& \or no align%
+& \or output%
+& \or math%
+& \or disc%
+& \or insert%
+& \or vcenter%
+& \or math choice%
+& \or semi simple%
+& \or math shift%
+& \or math left%
+& \else
+& unknown%
+& \fi
+& \space group),\MessageBreak
+& expected is 16 (math left group)%
+& \fi
+& }\@ehd
+& \fi
+& }%
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\mleft}
+% \begin{macrocode}
+\mleftright@Def\mleft{%
+ \mathopen{}\mathclose\bgroup
+& \edef\mleftright@GroupLevel{\the\numexpr\the\currentgrouplevel+1}%
+ \mleftright@OrgLeft
+}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\mright}
+% \begin{macrocode}
+\mleftright@Def\mright{%
+& \ifnum\mleftright@GroupLevel=\currentgrouplevel
+& \ifnum16=\currentgrouptype
+ \aftergroup\egroup
+& \else
+& \expandafter\mleftright@WrongGroup
+& \the\expandafter\currentgrouplevel
+& \expandafter(\the\currentgrouptype)%
+& \fi
+& \else
+& \expandafter\mleftright@WrongGroup
+& \the\expandafter\currentgrouplevel
+& \expandafter(\the\currentgrouptype)%
+& \fi
+ \mleftright@OrgRight
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\mleftright}
+% \begin{macrocode}
+\mleftright@Def\mleftright{%
+ \let\left\mleft
+ \let\right\mright
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\mleftrightrestore}
+% \begin{macrocode}
+\mleftright@Def\mleftrightrestore{%
+ \ifx\left\mleft
+ \let\left\mleftright@OrgLeft
+ \fi
+ \ifx\right\mright
+ \let\right\mleftright@OrgRight
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macrocode}
+\mleftright@AtEnd%
+%</package>
+% \end{macrocode}
+%% \section{Installation}
+%
+% \subsection{Download}
+%
+% \paragraph{Package.} This package is available on
+% CTAN\footnote{\CTANpkg{mleftright}}:
+% \begin{description}
+% \item[\CTAN{macros/latex/contrib/mleftright/mleftright.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/mleftright/mleftright.pdf}] Documentation.
+% \end{description}
+%
+%
+% \paragraph{Bundle.} All the packages of the bundle `mleftright'
+% 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[\CTANinstall{install/macros/latex/contrib/mleftright.tds.zip}]
+% \end{description}
+% \emph{TDS} refers to the standard ``A Directory Structure
+% for \TeX\ Files'' (\CTANpkg{tds}). Directories
+% with \xfile{texmf} in their name are usually organized this way.
+%
+% \subsection{Bundle installation}
+%
+% \paragraph{Unpacking.} Unpack the \xfile{mleftright.tds.zip} in the
+% TDS tree (also known as \xfile{texmf} tree) of your choice.
+% Example (linux):
+% \begin{quote}
+% |unzip mleftright.tds.zip -d ~/texmf|
+% \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 mleftright.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@{}}
+% mleftright.sty & tex/generic/mleftright/mleftright.sty\\
+% mleftright.pdf & doc/latex/mleftright/mleftright.pdf\\
+% mleftright.dtx & source/latex/mleftright/mleftright.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{mleftright.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 mleftright.dtx
+%makeindex -s gind.ist mleftright.idx
+%pdflatex mleftright.dtx
+%makeindex -s gind.ist mleftright.idx
+%pdflatex mleftright.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \section{Acknowledgement}
+%
+% \begin{description}
+% \item[Donald Arsenau:]
+% He provided the main trick and the first macros.
+% \item[Philipp Stephani:]
+% He solved the subscript problem.
+% \end{description}
+%
+% \begin{thebibliography}{9}
+% \raggedright
+% \bibitem{dave}
+% Dave94705,
+% \textit{spacing after \cs{right}\texttt{)} and before \cs{left}\texttt{)}},
+% newsgroup comp.text.tex,
+% Message-ID: \texttt{\small 5d264909-7c3d-4c9d-9b22-434178b2bf90@g21g2000prn.googlegroups.com},
+% 2010-08-12.
+% \newblock
+% {\small\url{https://groups.google.com/group/comp.text.tex/msg/e5b6833da7dc29bf}}
+%
+% \bibitem{arseneau}
+% Donald Arseneau,
+% \textit{Re: spacing after \cs{right}\texttt) and before \cs{left}\texttt)},
+% newsgroup comp.text.tex,
+% Message-ID: \texttt{\small yfivd6svl8y.fsf@mutant.triumf.ca},
+% 2010-08-30.
+% \newblock
+% {\small\url{https://groups.google.com/group/comp.text.tex/msg/e0b2e4386e5d04e4}}
+%
+% \bibitem{stephani}
+% Philipp Stephani,
+% \textit{Re: spacing after \cs{right}\texttt) and before \cs{left}\texttt)},
+% newsgroup comp.text.tex,
+% Message-ID: \texttt{\small 4c8c8c1e\$0\$6981\$9b4e6d93@newsspool4.arcor-online.net},
+% 2010-09-12.
+% \newblock
+% {\small\url{https://groups.google.com/group/comp.text.tex/msg/87ac1f61321de3ef}}
+%
+% \bibitem{oberdiek}
+% Heiko Oberdiek,
+% \textit{Re: spacing after \cs{right}\texttt) and before \cs{left}\texttt)},
+% newsgroup comp.text.tex,
+% Message-ID: \texttt{\small i6jcc2\$8of\$1@news.eternal-september.org},
+% 2010-09-12.
+% \newblock
+% {\small\url{https://groups.google.com/group/comp.text.tex/msg/257aa6119bef878b}}
+%
+% \end{thebibliography}
+%
+% \begin{History}
+% \begin{Version}{2010/09/25 v1.0}
+% \item
+% The first version.
+% \end{Version}
+% \begin{Version}{2016/05/16 v1.1}
+% \item
+% Documentation updates.
+% \end{Version}
+% \begin{Version}{2019/12/03 v1.2}
+% \item
+% Documentation updates.
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput
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