<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">% \iffalse meta-comment
% logbox : 2011/03/26 v1.0 - e-TeX showbox facilities for exploration purpose (FC)
%
% 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
%
% This work consists of the main source file logbox.dtx
% and the derived files:
%       logbox.sty, logbox.ins, logbox.drv
% and               logbox.pdf
%
% Unpacking:
%    (a) Without logbox.ins:            etex logbox.dtx
%    (b) If logbox.ins is present:      etex logbox.ins
%    (c) If you insist on using LaTeX
%           latex \let\install=y\input{logbox.dtx}
%        (quote the arguments according to the demands of your shell)
%
% Documentation:                        pdflatex logbox.dtx
% Copyright (C) 2011 by FC &lt;florent.chervet @t free.fr&gt;
%&lt;*ignore&gt;
\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
%&lt;/ignore&gt;
%&lt;*install&gt;
\input docstrip.tex
\Msg{***************************************************************************}
\Msg{* Installation                                                            *}
\Msg{* Package logbox: 2011/03/26 v1.0 - e-TeX showbox facilities (FC) *}
\Msg{***************************************************************************}

\keepsilent
\askforoverwritefalse

\let\MetaPrefix\relax
\preamble

This is a generated file.

logbox : 2011/03/26 v1.0 - e-TeX showbox facilities (FC)

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

This work consists of the main source file logbox.dtx
and the derived files:
                logbox.sty, logbox.ins, logbox.drv,
        and:                logbox.pdf

logbox : 2011/03/26 v1.0 - e-TeX showbox facilities (FC)
Copyright (C) 2011 by FC &lt;florent.chervet @t free.fr&gt;

\endpreamble
\let\MetaPrefix\DoubleperCent

\generate{%
   \file{logbox.ins}{\from{logbox.dtx}{install}}%
   \file{logbox.sty}{\from{logbox.dtx}{package}}%
}

\askforoverwritetrue
\generate{%
   \file{logbox.drv}{\from{logbox.dtx}{driver}}%
}

\obeyspaces
\Msg{************************************************************************}
\Msg{*                                                                      *}
\Msg{* To finish the installation you have to move the following            *}
\Msg{* file into a directory searched by TeX:                               *}
\Msg{*                                                                      *}
\Msg{*                        logbox.sty                                    *}
\Msg{*                                                                      *}
\Msg{* To produce the documentation run the file `logbox.dtx'               *}
\Msg{*                     through pdfLaTeX.                                *}
\Msg{*                                                                      *}
\Msg{************************************************************************}
\endbatchfile
%&lt;/install&gt;
%&lt;*ignore&gt;
\fi
%&lt;/ignore&gt;
%&lt;*driver&gt;
\def\thisinfo {e-TeX showbox facilities (FC)}
\def\thisversion {1.0}
\PassOptionsToPackage {full}{tabu}
\RequirePackage [\detokenize{��},hyperlistings]{fcltxdoc}
\AtBeginDocument{\embedfile{README}}
%%\CheckDates{interfaces=2011/02/12,tabu=2011/02/25}
\documentclass[a4paper,11pt,oneside,american,latin1,T1]{ltxdoc}     \usetikz{full}
\usepackage [latin1]{inputenc}
\usepackage [T1]{fontenc}
\usepackage {geometry}
\usepackage {numprint}
\usepackage {pdfcomment}
\usepackage {ragged2e}   % general tools
\usepackage {arial,bbding,relsize,moresize,manfnt,pifont,upgreek} % fonts
\csname endofdump\endcsname
\usepackage {Escan}
\usepackage {logbox}
\RequirePackage {tabu}
\let\microtypeYN=n
\ifx y\microtypeYN                                                          %
   \usepackage[expansion=all,stretch=20,shrink=60]{microtype}\fi            % font (microtype)
\CodelineNumbered\lastlinefit999
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texcsstyle=\color{blue},
moretexcs=[1]{
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keywordstyle=[3]{\color{black}\bfseries},
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morekeywords=[5]{blue},
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morekeywords=[7]{yellow},
texcsstyle=[7]{\color{Gold}},
texcs=[7]{includegraphics},
texcs=[77]{newEscan,renewEscan,provideEscan},
}
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  pdfauthor=Florent CHERVET,
  pdfkeywords={TeX, LaTeX, e-TeX, Escan, scantokens, environment, NewEnviron, package },
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\begin{document}
   \DocInput{\jobname.dtx}
\end{document}
%&lt;/driver&gt;
% \fi
%
% \CheckSum{157}
% \CharacterTable
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%   Right brace   \}     Tilde         \~}
%
% \DoNotIndex{\globcount,\globdimen,\if,\fi,\else,\def,\the,\gdef,\global,\relax,\begingroup,\endgroup}
% \DoNotIndex{\@empty,\@gobble,\def,\edef,\bgroup,\egroup,\@tempcnta,\@tempcntb,\@nil,\@ifnextchar,\z@,\string,\scan,\scan-left,\scan-right,\ShowTokens,\p@,\providecommand}
% \DoNotIndex{\ProvidesPackage,\NeedsTeXFormat,\long,\let,\kernel@ifnextchar}
% \makeatletter
% \def\ThisInfo{\ifdefvoid \lsstyle {\stretchwith\,{\eTeX\ showbox\ facilities\ for\ exploration\ purpose}}
%                                   {\lsstyle \eTeX\ showbox\ facilities\ for\ exploration\ purpose}}
% \def\ttdefault{lmvtt}                                     \colorlet{pkgcolor}{MidnightBlue!20!Aquamarine!250}
% \renewcommand\lstlistingname {Example}
% \parindent\z@\parskip.4\baselineskip\topsep\parskip\partopsep\z@
% \newrobustcmd*\FC {{\leavevmode\color{copper}\usefont{T1}{fts}xn FC}}
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% \AtBeginEnvironment {declenv}{\tabusetup* {font=\bfseries\large,rule width=\heavyrulewidth,linesep=0mm,tabuclineforhline}}^^Aeveryrow=\rowbackground{fill=Snow!220,cell fading=-+{70}{0}{30}},
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% \tikzAtEveryShipout {\ifnum \value{page}&gt;\@ne  \fill [fill=Chartreuse,ultra nearly transparent] (0,0) rectangle (\paperwidth,-\headheight);\fi }
% \lstset{color=Chartreuse!7}
%
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%       left=\declmarginwidth,
%       font=\bfseries\Large,
%       bookmark={color=pkgcolor,bold},
%       bottom=\smallskipamount,top=\medskipamount,
%  }
%  \sectionformat\subsection [hang]{
%       font=\raggedright\large\bfseries,
%       bookmark={color=MidnightBlue},
%  }
% \pagesetup [corpus]{norule,
%       font=\footnotesize,
%       head/left=\noindent\raise1.5mm\hbox{\thispackage},
%       head/font+=\mdseries\sffamily,
%       head/right=\noindent\raise1.5mm\hbox{\ThisInfo},
%       foot/left/font=\scriptsize\color{gray!80},
%       foot/left=\vbox to\baselineskip{\vss{{\rotatebox[origin=l]{90}{\thispackage\,[rev.\thisversion]\,\CopyRight2011\,\lower.4ex\hbox{\pkgcolor\NibRight}\,\FC}}}},
%       offset=15mm,
%       left/offset+=15mm,
%       foot/right=\oldstylenums{\arabic{page}}/\oldstylenums{\pageref{LastPage}},
%  }
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%     norules,font=\scriptsize,
%     offset=15mm,
%     left/offset+=15mm,
%     foot/font=\scriptsize\color[gray]{.55},
%     foot/right=\oldstylenums{\arabic{page}}/\oldstylenums{\pageref{LastPage}},
%     foot/left=\vbox to\baselineskip{\vss{{\rotatebox[origin=l]{90}{\thispackage\,[rev.\thisversion]\,\CopyRight2011\,\lower.4ex\hbox{\pkgcolor\NibRight}\,\FC\quad \xemail{florent.chervet at free.fr}}}}},
% }
% \bookmarksetup{openlevel=3}
%
% \newrobustcmd\IMPLEMENTATION {\bigskip
%       ^^A\geometry {top=0mm,headheight=8mm,includehead,reversemarginpar,asymmetric,headsep=3mm,bottom=14mm,footskip=5mm,inner=35mm,outer=20mm }
%       \newgeometry {top=0mm,headheight=8mm,includehead,reversemarginpar,asymmetric,headsep=3mm,bottom=14mm,footskip=5mm,inner=35mm,outer=3mm }
%       \pagesetup*{inner/offset-=2cm}
%       \clearpage
%       \bookmarksetup {bold*}^^A,openlevel=1}
%       \sectionformat \section{bookmark={color=black}} \sectionformat \subsection{bookmark={color=gray}}
%       \section(Implementation)[\lsstyle\textsc{\bfseries Implementation}]{\larger\lsstyle\textsc{\bfseries Implementation}}\label{sec:implementation}\parindent1em
%  }
%
% \tikzAtFirstShipout{\node[anchor=north] at (30mm,-10mm) {\includegraphics [width=35mm,keepaspectratio] {logbox.png}};}
%
% \title  {\vspace*{-28pt}\Huge\bfseries \raisedhyperdef[10mm]{}{Escan}{\CTANhref[logbox]{\pkgcolor logbox}}\Footnotemark{*}
%          \tabusetup* {linesep=3mm ,same rows,font=\large\changefont{fam=txr}}
%           \tabubox { X[c] }{  \ThisInfo   \\
%                               \small\FC   \\
%                               \small\mdseries\thisdate~--~\hyperref[\thisversion]{version \thisversion }
%                    }\vspace*{-12pt}}
% \author {}
% \date   {}
% \makeatother
%
% \maketitle            \bookmark[bold,view=FitH 0,dest=Escan,color=black!80]{Escan}
%
% \Footnotetext{\rlap{*}\kern2em}{\parindent0pt\noindent
% This documentation is produced with the \textt{DocStrip} utility.\par
% \begin{tabu}{ X[-3] X[-1] &gt;\ttfamily X }
% \smex To get the package,                   &amp;run:          &amp; etex \thisfile.dtx                   \\
% \smex To get the documentation              &amp;run (thrice): &amp; pdflatex \thisfile.dtx               \\
% \leavevmode\hphantom\smex To get the index, &amp;run:          &amp; makeindex -s gind.ist \thisfile.idx
% \end{tabu}\par
% The \xext{dtx}* is embedded into this \xext{pdf}* thank to \Xpackage{embedfile} by H. Oberdiek.}
%
% \vspace{-15mm}
%
% \begin{Abstract}[\leftmargin=1em\rightmargin\leftmargin\listparindent=0pt\itemindent=0pt\parsep=\medskipamount]
%
% Exploring a box content and its dimensions is often required for typography is made of measurements.
% \thispackage provides a few macros to achieve this task easily: \cs\viewbox* is the most useful.
%
% \thispackage is intended for exploration purpose, this is not a package for typesetting.
%
% \eTeX{} is obviously required \emph!
%
% \end{Abstract}
%
% \tocsetup{
%  before+=\hypersetup {linkcolor=black},label=toc,bookmark={text=Contents,bold,color=black},
%  section/skip=4pt plus2pt minus2pt,
%  subsection/skip=0pt plus2pt minus2pt,
%  dotsep=1.5mu,
%  section/dotsep,
%  subsection/dotsep=,
%  subsection/pagenumbers=off,
%  title/top = 12pt,
%  dot=\hbox{$\scriptscriptstyle\cdotp$},
%  title={\pkgcolor\leaders\vrule height3.4pt depth-3pt\hfill\null}\quad Contents of \thispackage\quad{\pkgcolor\leaders\vrule height3.4pt depth-3pt\hfill\null},
%  title/bottom=4pt,
%  title/font=\Large\bfseries,
%  multicols/beforeend=\aftergroup\tocrule,
%  columns=2,columns/rule color=pkgcolor,no columns rule,
%  }
%  \def\tocrule{\leavevmode{\pkgcolor\hrule}}
%
% \tableofcontents  \pagestyle{corpus}
%
% \listofsetup {lol}{
%       before+=\hypersetup {linkcolor=black},label=lol,bookmark={text=List of listings,color=black},
%       columns=2,columns/rule/color=pkgcolor,no columns rule,
%       title/bottom=4pt,
%       title={\pkgcolor\leaders\vrule height3.4pt depth-3pt\hfill\null}\quad List of listings and examples\quad{\pkgcolor\leaders\vrule height3.4pt depth-3pt\hfill\null},
%       multicols/beforeend=\aftergroup\tocrule,
%       lstlisting/number=off,
%       title/font=\Large\bfseries,
% }
%
% \listoflstlisting
%
% \section{Five exploration commands}
%
% \begin{declcs}\logbox \meta{box register}\stform| \meta{number}
% \end{declcs}\declcsbookmark\logbox
%
% \cs\logbox displays the contents of a \TeX{} box register in the \xext{log}*.�
% This is exactly \cs\showbox with: ^^A\loggingall
% \begin{itemize}[leftmargin=2em]
% \item \cs\showoutput set if \cs\tracingoutput$=$0 \\
%       If \cs\tracingoutput $&gt;0$ it is assumed that the user set the tracing level he desired before \cs\logbox.
% \item The minimum value for\, \cs\showboxbreadth\, and\, \cs\showboxdepth\, is assumed to be  $10$
% \item The \eTeX{} \cs\interactionmode\, is temporarily set to $2$ (\cs\scrollmode) and restored to its previous value
%       just after the execution of\, \cs\showbox: \cs\logbox does not stop the compilation, just reports the box contents into the \xext{log}*.
% \end{itemize}
%
% \tabusetup* {X=X[c],frame=tabudotted}
% \begin{tabu*} { X &gt;{\columnbackground{cell shape={rectangle,draw=pkgcolor}}} X }
% \begin{lstlisting}[caption={Example of \cs{logbox}},csred=logbox]
%   \setbox 0 =\hbox{ Hello }\logbox 0
% \end{lstlisting}
% &amp;
%   \setbox 0 =\hbox{ Hello }\logbox 0
%   \begin{Verbatim}[fontsize=\footnotesize]
%   logbox: 0 on input line 55
%   &gt; \box0=
%   \hbox(7.54149+0.0)x31.75774
%   .\glue 3.63054 plus 1.81337 minus 1.20892
%   .\T1/cmr/m/n/10.95 H
%   .\T1/cmr/m/n/10.95 e
%   .\T1/cmr/m/n/10.95 l
%   .\T1/cmr/m/n/10.95 l
%   .\T1/cmr/m/n/10.95 o
%   .\glue 3.63054 plus 1.81337 minus 1.20892
%
%   ! OK.
%   \end{Verbatim}
% \end{tabu*}
%
% \Needspace{6\baselineskip}
% \begin{declcs}\dimbox \meta{box register}\stform| \meta{number}
% \end{declcs}\declcsbookmark\dimbox
%
% \cs\dimbox typeset the type (\cs\hbox, \cs\vbox or \textt{void box}) and dimensions of a box in the document itself:�
% \tabusetup* {everyrow={\ifnum\thetaburow=3 \cbackground{cell shape={rectangle,draw=pkgcolor}}-\fi}, X=X[c],frame=tabudotted}
% \begin{Escan-top}[caption={Example of \cs{dimbox}}]
%   \setbox 0 = \hbox { Hello }\dimbox 0                    \par
%   \setbox 1 = \vtop {\hsize=60mm Hello \par (World)}\dimbox 1
% \end{Escan-top}
%
%  \begin{declcs}\viewbox \meta{box register} \stform| \meta{number}
%           \cs\viewbox* \meta{box register} \stform| \meta{number}
%  \end{declcs}\declcsbookmark\viewbox
%
% \cs\viewbox basically does \cs\dimbox and \cs\logbox.
%
% \cs\viewbox* prints a copy of the box in the document, after the dimensions have been reported:
% \tabusetup* {everyrow={\ifnum\thetaburow=3 \cbackground{cell shape={rectangle,draw=pkgcolor}}-\fi}, X=X[c],frame=tabudotted}
% \begin{Escan-top}[caption={\cs{viewbox}* gives all the informations}]
% \setbox 0 =\vtop {\hsize=60mm Hello \par (World)}
% \viewbox*0
% \end{Escan-top}
%
% And the \xext{log}* contains (artificially splitted here on two columns):�
% \tabusetup* {margins=&lt;2pt&gt;,frame={ &lt; |[tabudotted]|[pkgcolor]
%                                    &gt; |[pkgcolor]|[tabudotted]
%                                    ^{\tabucline [tabudotted]-\tabucline ^\doublerulesep [pkgcolor]-}
%                                    _{\tabucline _\doublerulesep [pkgcolor]-\tabucline^\doublerulesep [tabudotted]-}} }
% \begin{tabu*} { X[5] X[-4] }
% \begin{Verbatim}[fontsize=\footnotesize]
% logbox: 0 on input line 1
% &gt; \box0=
% \vbox(7.54149+16.3369)x170.71652
% .\hbox(7.54149+0.0)x170.71652, glue set 146.21986fil
% ..\hbox(0.0+0.0)x0.0
% ..\rule(0.0+*)x0.0
% ..\T1/cmr/m/n/10.95 H
% ..\T1/cmr/m/n/10.95 e
% ..\T1/cmr/m/n/10.95 l
% ..\T1/cmr/m/n/10.95 l
% ..\T1/cmr/m/n/10.95 o
% ..\penalty 10000
% ..\glue(\parfillskip) 0.0 plus 1.0fil
% ..\glue(\rightskip) 0.0
% .\glue(\parskip) 0.0
% .\glue(\baselineskip) 5.38942
% .\hbox(8.21059+2.7369)x170.71652, glue set 133.2164fil
% \end{Verbatim}
% &amp;
% \begin{Verbatim}[fontsize=\footnotesize]
% % ..\hbox(0.0+0.0)x0.0
% ..\T1/cmr/m/n/10.95 (
% ..\T1/cmr/m/n/10.95 W
% ..\kern-0.9067
% ..\T1/cmr/m/n/10.95 o
% ..\T1/cmr/m/n/10.95 r
% ..\T1/cmr/m/n/10.95 l
% ..\T1/cmr/m/n/10.95 d
% ..\T1/cmr/m/n/10.95 )
% ..\penalty 10000
% ..\glue(\parfillskip) 0.0 plus 1.0fil
% ..\glue(\rightskip) 0.0
%
% ! OK.
% \end{Verbatim}
% \end{tabu*}
%
%
% \begin{declcs}\ShowGroups
% \end{declcs}\declcsbookmark\ShowGroups
%
% The command \cs\ShowGroups executes the primitive \cs\showgroups but the compilation does not stop.
%
% \begin{declcs}\ShowLists
% \end{declcs}\declcsbookmark\ShowLists
%
% The command \cs\ShowLists executes the primitive \cs\showlists but the compilation does not stop.
%
% \begin{declcs}\ShowIfs
% \end{declcs}\declcsbookmark\ShowIfs
%
% The command \cs\ShowIfs executes the primitive \cs\showifs but the compilation does not stop.
%
%
% \StopEventually{ }
%
% \IMPLEMENTATION
%
% \subsection*{Identification}       \makeatletter
%
% The package namespace is \cs\logb@x
%
%    \begin{macrocode}
%&lt;*package&gt;
\NeedsTeXFormat{LaTeX2e}[2005/12/01]
\ProvidesPackage{logbox}
         [2011/03/26 v1.0 - e-TeX showbox facilities for exploration (FC)]
%    \end{macrocode}
%
%    \begin{macro}{\logbox}
%
% \TeX{} \cs\showbox without stop in the compilation.
%
%    \begin{macrocode}
\protected\def\logbox {\begingroup \afterassignment\logb@x@log \count@ }
\def\logb@x@log {\ifnum\tracingoutput&gt;0 \ifnum\showboxdepth&lt;2 \showboxdepth=2 \fi
                                        \ifnum\showboxbreadth&lt;10 \showboxbreadth=10 \fi
                 \else \showoutput \fi
    \message {^^Jlogbox: \the\count@ \on@line^^J}\expandafter \scrollmode
                            \expandafter \showbox \expandafter \count@ \expandafter
                                        \interactionmode\the\interactionmode \endgroup
}% \logb@x@log
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\dimbox}
%
% Typeset the type and dimensions of a box in the document.
%
%    \begin{macrocode}
\protected\def\dimbox {\begingroup \afterassignment\logb@x@dim \count@ }
\def\logb@x@dim {\nfss@text
   {\ifhbox\count@ hbox\else\ifvbox\count@ vbox\else box\fi\fi
    \the\count@: \ifvoid\count@ void\else wd=\the\wd\count@\
                                          ht=\the\ht\count@\
                                          dp=\the\dp\count@\
                            tot=\the\dimexpr\ht\count@ +\dp\count@ \relax\fi }\endgroup
}% \logb@x@dim
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\viewbox}
%
% Typeset the type and dimensions of a box in the document and inserts the content of that box.
%
%    \begin{macrocode}
\protected\def\viewbox {\begingroup \@ifstar
        {\def\logb@x@ {\@@par\copy\count@ }\afterassignment\logb@x@view \count@ }
        {\let\logb@x@ \relax \afterassignment\logb@x@view \count@ }}
\def\logb@x@view {\dimbox\count@ \logb@x@ \logb@x@log }
%    \end{macrocode}
%    \end{macro}
%
%
%    \begin{macro}{\Viewbox}
%
% Same as \cs\Viewbox but the content of the box is given as argument, rather than the box register.
%
%    \begin{macrocode}
\protected\def\Viewbox  {\@ifstar \logb@x@View \logb@x@View }
\long\def\logb@x@View #1{\begingroup \setbox0=\hbox {{#1}}\viewbox*0\endgroup }
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{ShowGroups}
%
% \eTeX{} \cs\showgroups without stop in the compilation.
%
%    \begin{macrocode}
\def\ShowGroups {\expandafter \scrollmode \expandafter \showgroups \expandafter
                                    \interactionmode\the\interactionmode \relax }
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\ShowLists}
%
% \eTeX{} \cs\showlists without stop in the compilation.
%
%    \begin{macrocode}
\def\ShowLists {\expandafter \scrollmode \expandafter \showlists \expandafter
                                    \interactionmode\the\interactionmode \relax }
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macro}{\ShowIfs}
%
% \eTeX{} \cs\showgroups without stop in the compilation.
%
%    \begin{macrocode}
\def\ShowIfs {\expandafter \scrollmode \expandafter \showifs \expandafter
                                    \interactionmode\the\interactionmode \relax }
%    \end{macrocode}
%    \end{macro}
%
%    \begin{macrocode}
%&lt;/package&gt;
%    \end{macrocode}
%
%
% \begin{History}
%   \sectionformat\subsection{font=\raggedright\normalsize\pkgcolor,bottom=0pt,top=\smallskipamount }\makeatletter
%   \addtocontents{toc}{\tocsetup{subsection/font+=\protect\footnotesize}}
%
%   \begin{Version}{2011/03/26}{1.0}
%   \item First version. \quad But it works well yet \emph!
%   \end{Version}
%
% \end{History}
%
% \bookmarksetup {open=false}
% \restoregeometry
% \pagesetup* {inner/offset+=2cm}
% \PrintIndex
%
% \Finale</pre></body></html>