%% 
%%  A DANTE-Edition example
%% 
%%  Example 02-02-5 on page 29.
%% 
%%  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{201.70511pt}
\setlength\parindent{0pt}

\usepackage{arydshln}

\begin{document}
\setlength\arrayrulewidth{5pt}
\begin{tabular}{:c:}\hdashline
  one\\two\\\hdashline
\end{tabular}\par\medskip
\ADLsomewide% switch to array style
\begin{tabular}{:c:}\hdashline
  one\\two\\\hdashline
\end{tabular}
\end{document}