%%
%% A DANTE-Edition example
%%
%% Example 02-27-1 on page 108.
%%
%% Copyright (C) 2010 Herbert Voss
%%
%% It 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.
%%
%% See
http://www.latex-project.org/lppl.txt for details.
%%
%%
%% ====
% Show page(s) 1
%%
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{177.70511pt}
\setlength\parindent{0pt}
\usepackage[utf8]{inputenc}
\usepackage{polytable}
\begin{document}
\begin{pboxed}
\column{A}{l}\column{B}{l}\column{C}{l}\column{D}{l}
\={A} function
\>[B] \textbf{fact(n: integer)}: integer;\\
\>[B] begin \>[C]\qquad \>[D]\qquad\\
\={C} if $n>1$ then \\
\={D} fact:= n * fact(n-1) \\
\>[C] else \\ \>[D] fact:= 1; \\ \>[B] end;
\end{pboxed}
\end{document}
