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+
+% Rolf Niepraschk, 2005-07-16, Rolf.Niepraschk@ptb.de
+
+\listfiles\errorcontextlines=100
+\documentclass[a4paper,draft,twoside]{article}
+
+\usepackage[dvipsnames]{xcolor}
+\usepackage[textwidth=12cm,marginparwidth=4cm]{geometry}
+
+\usepackage[final]{showexpl}
+
+\usepackage[T1]{fontenc}
+
+\IfFileExists{luximono.sty}%
+{%
+ \usepackage[scaled]{luximono}%
+}
+{%
+ \IfFileExists{beramono.sty}%
+ {%
+ \usepackage[scaled]{beramono}%
+ }{}
+}
+
+\lstset{%
+ basicstyle=\ttfamily\small,
+ commentstyle=\itshape\ttfamily\small,
+ showspaces=false,
+ showstringspaces=false,
+ breaklines=true,
+ backgroundcolor=\color{lightgray},
+ breakautoindent=true,
+ captionpos=t
+}
+
+\iftrue
+\lstset{explpreset={numbers=left,numberstyle=\tiny,numbersep=.3em,
+ xleftmargin=1em,columns=flexible,language={}}}
+\fi
+
+\usepackage[font=small,labelfont=bf,justification=raggedright,%
+ singlelinecheck=false]{caption}
+\usepackage{amsmath}
+
+\AtBeginDocument{%
+ \renewcommand*\lstlistlistingname{Examples}
+ \renewcommand*\lstlistingname{Example}
+}
+
+\newcommand*{\MARKER}%
+ {\noindent\strut\vrule
+ \hrulefill~half text area~\hrulefill\vrule
+ \hrulefill~half text area~\hrulefill\vrule
+ \marginpar{\strut\vrule\hrulefill~margin area~\hrulefill\vrule}}
+
+\begin{filecontents*}{ex1.tex}
+Line 1 \par
+Line 2 \par
+Line 3 \par
+Line 4 \par
+Line 5 \par
+Line 6 \par
+Line 7 \par
+Line 8 \par
+Line 9 \par
+Line 10 \par
+Line 11 \par
+Line 12 \par
+Line 13
+\end{filecontents*}
+
+\begin{document}
+
+\section*{The \LaTeX\ package \textsf{showexpl}}
+
+\bigskip
+
+\lstlistoflistings
+
+\subsection*{The \textsf{listings} parameters still works}
+
+\begin{LTXexample}[pos=t,numbers=none,
+ codefile=\jobname-\theltxexample.tex]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\subsection*{The \texttt{pos}, \texttt{overhang}, and
+ \texttt{caption} parameters}
+
+\begin{LTXexample}[pos=b,overhang=.5\marginparwidth+.5\marginparsep,%
+ caption={The \texttt{overhang} parameter}]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[pos=l,hsep=50pt,width=55mm]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\subsection*{The \texttt{wide} parameter with inner and outer position}
+
+\begin{LTXexample}[pos=o,wide,caption={The \texttt{wide} parameter},%
+ label=ex:Gustav]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[pos=i,wide]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+
+%--------------
+\newpage
+
+\subsection*{More examples on an even (left) page}
+
+\begin{LTXexample}[pos=t]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[pos=b,overhang=.5\marginparwidth+.5\marginparsep,%
+ captionpos=b,caption={The \texttt{overhang} parameter again},%
+ label=ex:Fridolin]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[pos=l,hsep=50pt,width=55mm]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[pos=o,wide,captionpos=b,%
+ caption={The \texttt{wide} parameter again}]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[pos=i,wide]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+
+%--------------
+\newpage
+
+\subsection*{Whole \LaTeX{} documents as example code and
+ the para\-meters \texttt{preset}, \texttt{rframe}, and \texttt{rangeaccept}}
+
+\begin{LTXexample}[pos=r,wide,width=.65,preset=\LARGE,rframe={}]
+\documentclass[a4paper,twoside]{article}
+\begin{document}
+ \begin{equation}
+ \sigma(t)=\frac{1}{\sqrt{2\pi}}
+ \int^t_0 e^{-x^2/2} dx
+ \end{equation}
+\end{document}
+\end{LTXexample}
+
+\MARKER
+
+\begin{LTXexample}[wide,width=.75,preset=\footnotesize,rframe=single,%
+ codefile=\jobname-\theltxexample.tex]
+\documentclass[a4paper,twoside]{article}
+\usepackage{amsmath}
+% enhancements for mathematical formulas
+\begin{document}
+\begin{equation}\label{eq:barwq}
+\begin{split}
+ H_c&=\frac{1}{2n}
+ \sum^n_{l=0}(-1)^{l}(n-{l})^{p-2}
+ \sum_{l _1+\dots+ l _p=l}\prod^p_{i=1}
+ \binom{n_i}{l _i}\\
+ &\quad\cdot[(n-l )-(n_i-l _i)]^{n_i-l _i}\cdot
+ \Bigl[(n-l )^2-\sum^p_{j=1}(n_i-l _i)^2\Bigr].
+\end{split}
+\end{equation}
+\end{document}
+\end{LTXexample}
+
+\LTXinputExample[%
+ pos=r,backgroundcolor=\color{Goldenrod!50},%
+ %firstline=3,lastline=6,%
+ linerange={3-6,8-10},%
+ float=tb,rangeaccept=true,%
+ caption={[Floating Example]%
+ This is a floating Example (parameter \texttt{rangeaccept=true})}]{ex1}
+
+\newpage
+
+\MARKER
+
+\subsection*{Using a graphic as the result}
+
+\begin{LTXexample}[pos=i,wide]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\begin{LTXexample}[pos=i,wide,rframe={},%
+graphic=result-picture]% graphic=\jobname-\theltxexample
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\begin{LTXexample}[caption={The \texttt{graphic} parameter},captionpos=b,%
+ pos=i,wide,graphic={[width=.5\linewidth]result-picture}]
+\Large\LaTeX{} \LaTeX{}
+\LaTeX{} \LaTeX{}
+\end{LTXexample}
+
+\newpage
+
+\subsection*{The parameter \texttt{varwidth}}
+
+\bigskip
+
+\MARKER
+
+\begin{LTXexample}[caption={Fix width of the result
+ (side-by-side default: \texttt{0.5\textbackslash linewidth})},%
+ captionpos=b]
+\setlength{\unitlength}{1cm}
+\begin{picture}(2,2) \thicklines
+ \thicklines
+ \put(0,0){\line(1,1){2}}
+ \put(0,2){\line(1,-1){2}}
+\end{picture}
+\end{LTXexample}
+
+\medskip
+
+\begin{LTXexample}[caption={[The \texttt{varwidth} parameter]%
+ Width of the result reduced to the ``natural''
+ width (\texttt{varwidth=true})},varwidth,captionpos=b]
+\setlength{\unitlength}{1cm}
+\begin{picture}(2,2) \thicklines
+ \put(0,0){\line(1,1){2}}
+ \put(0,2){\line(1,-1){2}}
+\end{picture}
+\end{LTXexample}
+
+\medskip
+
+\begin{LTXexample}[caption={Fix width of the result
+ (default: \texttt{\textbackslash linewidth})},%
+ pos=t,captionpos=b]
+\setlength{\unitlength}{1cm}
+\begin{picture}(2,2) \thicklines
+ \put(0,0){\line(1,1){2}}
+ \put(0,2){\line(1,-1){2}}
+\end{picture}
+\end{LTXexample}
+
+\medskip
+
+\begin{LTXexample}[caption={[The \texttt{justification} parameter]%
+ Result is centered (\texttt{varwidth=true})},%
+ varwidth,captionpos=b,pos=t,justification=\centering]
+\setlength{\unitlength}{1cm}
+\begin{picture}(2,2)
+ \thicklines
+ \put(0,0){\line(1,1){2}}
+ \put(0,2){\line(1,-1){2}}
+\end{picture}
+\end{LTXexample}
+
+\end{document}