\documentclass[a4paper,article]{memoir}
\usepackage[T1]{fontenc}
%\usepackage[garamond]{mathdesign}

\usepackage{bera}

\setsecnumdepth{part}
\pagestyle{plain}

\usepackage{xspace,listings,xcolor}
\newcommand\pkg{\jobname\xspace}

\newcommand\tpt{threeparttable\xspace}

\definecolor{felinesrcbgcolor}{rgb}{1,1,0.85}
\definecolor{austdblue}{cmyk}{1,0.8,0,0.15}
\definecolor{nicered}{rgb}{.647,.129,.149}
\lstset{
  basicstyle=\ttfamily\footnotesize,
  columns=fixed,
  backgroundcolor=\color{felinesrcbgcolor},
  frame=single,
  extendedchars=true,
  framexleftmargin=3pt,
  numbers=none,
  numberstyle=\tiny\ttfamily,
  escapeinside={X}{X},
}

\usepackage[referable]{threeparttablex}
\usepackage{longtable}

\usepackage{hyperref}

\begin{document}

\title{A small extension to threeparttable \\ -- or bringing
  threeparttable to longtable}

\author{Lars Madsen\thanks{Email: daleif@imf.au.dk}}

\date{Version 0.06, \today}

\maketitle

\section{Introduction}
\label{sec:introduction}

Because of the measuring nature of the original \tpt
environment, one cannot use it in combination with the longtable
environment. This package makes up for this and brings \tpt
to longtable, at the small cost of having to do things a little
different when adding table notes to longtable.

If asked for it, the pacakge will also enable the user to label and
refer to table notes.


\section{Prerequisites}
\label{sec:prerequisites}

The \pkg package requires the \tpt and environ packages to
be available on your system.

\section{Basic usage}
\label{sec:basic-usage}

The interface for the regular \tpt system has not changed. We add the
following:
\begin{description}
\item[ThreePartTable] a very simple wrapper environment that should
  wrap around the entire longtable. (It actually does nothing else but
  enable the \cs{tnote} command).
\item[TableNotes] an environment taking the same options as the normal
  table\-notes environment, write the table notes in this environment.
  It needs to be placed \emph{before} the longtable. It \emph{cannot}
  be added inside longtable.
\item[\cs{insertTableNotes}] use this macro to insert the table notes
  inside the longtable. It is inserted via a special
  \cs{multicolumn}. If you add stuff after the table notes, e.g.\ a
  caption, you should remember to use \verb+\insertTableNotes\\+.
\end{description}

\noindent A longtable example could look like this:
\begin{lstlisting}
\begin{ThreePartTable}
  \begin{TableNotes}
    \item[a] A note
    \item[b] Another note
  \end{TableNotes}
  \begin{longtable}{l l}
    \toprule
    Column 1 & Column 2 \\
    \midrule
    \endhead
    \cmidrule{2-2}
    \multicolumn{2}{r}{\textit{continued}}
    \endfoot
    \bottomrule
    \insertTableNotes
    \endlastfoot

    % the contents of the table
    A          & B\tnote{a} \\
    C\tnote{b} & D          \\ 
  \end{longtable}
\end{ThreePartTable}
\end{lstlisting}


\section{Extending \tpt}
\label{sec:extending-tpt}

One thing missing in \tpt is the ability to refer to
individual table notes. And even let \cs{tnote} pickup the note
marker via a label (reducing the error-40 factor).

By using the package option >>\texttt{referable}<< we will change a
few \tpt internals such that
\begin{enumerate}[(a)]
\item The manually specified note markers issued by \verb+\item[...]+
  is referable, and
\item \cs{tnotex}\marg{label} will refer to the table note identified
  by \meta{label}. (We do not want to change \cs{tnote}). In case you
  are using hyperref, there is also a \cs{tnotex*} that does not make
  the tnote into a hyperlink.
\item \cs{setTableNoteFont}\marg{font commands} can be used to set the
  font inside tables notes. (default is empty)
\item inside the \emph{tablenotes} environment, the macros \cs{note}
  and \cs{source} can be used to specify general notes and a source
  reference for the table data. These are commonly used within the
  examples in The Chicago Manual of Style.
\item The macros \cs{TPTLnotename} \cs{TPTLsourcename} holds the title
  names for \cs{note} and \cs{source} (default: >>Note<< and
  >>Source<<). Both are typeset using \cs{TPTLnotesnamefontcommand}
  which deaults to \cs{textit}.
\end{enumerate}

\section{Example}
\label{sec:example}

\begin{lstlisting}
\begin{ThreePartTable}
  \begin{TableNotes}
  \item[a] \label{tn:a} test test test test test test test test
  \item[b] \label{tn:b} test2
  \source Made up by daleif
  \end{TableNotes}

\begin{longtable}{l l l}
  \caption{A long table}\\
  \toprule
  Coloum 1 & & Column 2 \\
  \midrule
  \endhead
  \cmidrule{3-3}
  \multicolumn{3}{r}{\textit{continued}}
  \endfoot
  \bottomrule
  \insertTableNotes\\
  \endlastfoot
  AAAA\tnotex{tn:a} & XXXXXXXX & BBBB \\
%  \newpage
  CC   &          & DD\tnotex{tn:b}   \\
\end{longtable}
\end{ThreePartTable}


\begin{center}
  \begin{threeparttable}
    \caption{A regular tabular}
    \begin{tabular}{l l l}
      \toprule
      Coloum 1 & & Column 2 \\
      \midrule
      AAAA\tnote{c} & XXXXXXXX & BBBB \\
      CC   &          & DD\tnotex*{tn:c}   \\
      \bottomrule
    \end{tabular}
    \begin{tablenotes}
      \footnotesize
    \item[c] test test test test test test test test 
    \item[d] \label{tn:c} the reference to this is not a link
    \note Some general note
    \end{tablenotes}
  \end{threeparttable}
\end{center}
\end{lstlisting}

\newpage

\noindent Resulting in:

\begin{ThreePartTable}
  \begin{TableNotes}
  \item[a] \label{tn:a} test test test test test test test test
  \item[b] \label{tn:b} test2
  \source Made up by daleif
  \end{TableNotes}

\begin{longtable}{l l l}
  \caption{A long table}\\
  \toprule
  Coloum 1 & & Column 2 \\
  \midrule
  \endhead
  \cmidrule{3-3}
  \multicolumn{3}{r}{\textit{continued}}
  \endfoot
  \bottomrule
  \insertTableNotes\\
  \endlastfoot
  AAAA\tnotex{tn:a} & XXXXXXXX & BBBB \\
%  \newpage
  CC   &          & DD\tnotex{tn:b}   \\
\end{longtable}
\end{ThreePartTable}


\begin{center}
  \begin{threeparttable}
    \caption{A regular tabular}
    \begin{tabular}{l l l}
      \toprule
      Coloum 1 & & Column 2 \\
      \midrule
      AAAA\tnote{c} & XXXXXXXX & BBBB \\
      CC   &          & DD\tnotex*{tn:c}   \\
      \bottomrule
    \end{tabular}
    \begin{tablenotes}
      \footnotesize
    \item[c] test test test test test test test test 
    \item[d] \label{tn:c} the reference to this is not a link
    \note Some general note
    \end{tablenotes}
  \end{threeparttable}
\end{center}




\end{document}

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