I am using a variant of the answer provided here to remove the List of Figures and List of Tables part of the contents when none are there. The issue I have is when using longtable, if there is only a single longtable and no other table, the List of Tables gets removed as the following line (I believe) does not account for long tables. What do I need to do to amend this?
\def\tables@in@document {%
\immediate\write\@mainaux {\global\string\tablestrue}%
\global\let\tables@in@document\empty
}
MWE below
\documentclass[10pt]{article}
\usepackage{lipsum}
\usepackage[margin=0.75in]{geometry}
\usepackage{longtable}
\usepackage{float}
\floatstyle{boxed}
\restylefloat{figure}
\restylefloat{table}
\newif\iffigures
\newif\iftables
\makeatletter
\let\OLDfigure\figure
\def\figure {\figures@in@document\OLDfigure }
\let\OLDtable\table
\def\table {\tables@in@document\OLDtable }
\def\figures@in@document {%
\immediate\write\@mainaux {\global\string\figurestrue}%
\global\let\figures@in@document\empty
}
\def\tables@in@document {%
\immediate\write\@mainaux {\global\string\tablestrue}%
\global\let\tables@in@document\empty
}
\makeatother
% for the purpose of testing
% this will make a MWE without tables
\long\def\IGNORE #1\ENDIGNORE{}
% uncomment to make a MWE with tables
%\let\IGNORE\empty
%\let\ENDIGNORE\empty
\begin{document}
\tableofcontents
%
\iffigures
\addcontentsline{toc}{section}{List of Figures}
\listoffigures
\fi
%
\iftables
\addcontentsline{toc}{section}{List of Tables}
\listoftables
\fi
\section{First section}
\lipsum[\inputlineno]
\begin{figure}[H]\centering
\LaTeX\LaTeX
\caption{my figure}
\end{figure}
\lipsum[\inputlineno]
\begin{figure}[H]\centering
\LaTeX\TeX
\caption{another figure}
\end{figure}
\section{Second section}
\lipsum[\inputlineno]
\begin{table}[H]\centering
\TeX\LaTeX
\caption{my table}
\end{table}
\lipsum[\inputlineno]
\IGNORE
\begin{table}[H]\centering
\TeX\TeX
\caption{another table}
\end{table}
\ENDIGNORE
\lipsum[\inputlineno]
\begin{longtable}{|c|c|c|c|}
\caption{A simple longtable example}\\
\hline
\textbf{First entry} & \textbf{Second entry} & \textbf{Third entry} & \textbf{Fourth entry} \\
\hline
\endfirsthead
\multicolumn{4}{c}%
{\tablename\ \thetable\ -- \textit{Continued from previous page}} \\
\hline
\textbf{First entry} & \textbf{Second entry} & \textbf{Third entry} & \textbf{Fourth entry} \\
\hline
\endhead
\hline \multicolumn{4}{r}{\textit{Continued on next page}} \\
\endfoot
\hline
\endlastfoot
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\ 1 & 2 & 3 & 4 \\
\end{longtable}
\end{document}
