%% 
%%  A DANTE-Edition example
%% 
%%  Example 02-02-3 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{177.70511pt}
\setlength\parindent{0pt}
\setlength\parskip{5pt plus 2pt minus 1pt}

\usepackage{array,arydshln}

\begin{document}
a new line on the paragraph\par line
\begin{tabular}[t]{:c:}\firsthdashline
  one\\two\\\hdashline
\end{tabular} line \\
a new line on the paragraph\par line
\begin{tabular}[t]{:c:}\firsthdashline[3pt/1pt]
  one\\two\\\lasthdashline[1pt/3pt]
\end{tabular} line \\
a new line on the paragraph
\end{document}