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% Copyright (c) 2015-2019 Robert Ryszard Paciorek <rrp@opcode.eu.org>
% 
% MIT License
% 
% Permission is hereby granted, free of charge, to any person obtaining a copy
% of this software and associated documentation files (the "Software"), to deal
% in the Software without restriction, including without limitation the rights
% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
% copies of the Software, and to permit persons to whom the Software is
% furnished to do so, subject to the following conditions:
% 
% The above copyright notice and this permission notice shall be included in all
% copies or substantial portions of the Software.
% 
% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
% SOFTWARE.

\documentclass[a4paper]{article}

\usepackage{ehhline, dashrule}

\begin{document}

\title{The \texttt{ehhline}  package}
\author{Robert Ryszard Paciorek <rrp@opcode.eu.org>}
\date{2019-05-13}
\maketitle

This package extend (via \verb$\AtBeginDocument$ and \verb$\patchcmd$) \verb$\hhline$ command with a \verb$!{...}$ token, which allows build line with \LaTeX command.

When is used \texttt{colortbl} package this package must be load AFTER \texttt{colortbl} (because \texttt{colortbl} package redefine \verb$\HH@loop$ command in \verb$\AtBeginDocument$).

\section{Example}

\begin{verbatim}
\hhline{%
     !{\leaders\hrule height 1pt\hfil}%
     !{\leaders\hbox{\tiny$\star$}\hfil}%
     !{\hfil...\hfil...\hfil}%
     !{\leaders\hbox{\hdashrule{1.5mm}{1pt}{0.5mm 0.5mm 0.5mm 0mm}}\hfil}%
}
\end{verbatim}

\begin{center}
\begin{tabular}{| c | c | c | c}
aaa & bbb & ccc & ddd\\
\hhline{%
     !{\leaders\hrule height 1pt\hfil}%
     !{\leaders\hbox{\tiny$\star$}\hfil}%
     !{\hfil...\hfil...\hfil}%
     !{\leaders\hbox{\hdashrule{1.5mm}{1pt}{0.5mm 0.5mm 0.5mm 0mm}}\hfil}%
}
\end{tabular}
\end{center}
\end{document}