Put a link to the last section of a document

Question

I'm writing a document in LyX which I will add to over time, adding a new section on each edit. I have enabled hyperref in the pdf properties and have a table of contents which correctly links to each section. However, for convenience I'd like to have a link before the toc which jumps directly to the start of the most recent (i.e. last) section.

Is it possible to access the variables used in generating the toc for this purpose? Alternatively, can I just put a label at the very end of the document (which would be a reference to a subsection) and do some maths to find the section itself? If so, how would I then link to it?

Answer 1

I wouldn't take this too seriously, but it works, even if \section* is used. Of course you should never use \label{lastsection} in your document, but only \ref{lastsection} or \pageref{lastsection}.

\documentclass{article}
\usepackage{atenddvi}
\usepackage{hyperref}

\makeatletter
\let\latex@@section\section
\renewcommand{\section}{\@ifstar{\new@@ssection}{\@dblarg\new@@section}}
\def\new@@section[#1]#2{%
  \latex@@section[#1]{#2}%
  \xdef\perhaps@last{perhaps@last@\thesection}%
  \label{\perhaps@last}%
}
\newcounter{ssection}
\def\new@@ssection#1{%
  \latex@@section*{#1}%
  \refstepcounter{ssection}%
  \xdef\perhaps@last{perhaps@last@star@\thessection}%
  \label{\perhaps@last}%
}
\AtEndDvi{
\write\@mainaux{%
  \unexpanded{\global\expandafter\let\expandafter\r@lastsection\csname} r@\perhaps@last\endcsname}
}
\makeatother

\begin{document}

Last section is at page \pageref{lastsection}

\tableofcontents

\section{Abc}
abc
\newpage

\section{Def}
def
\newpage

\section{Ghi}
ghi

\end{document}

Answer 2

The MWE below does what I was hoping to achieve, but ideally I'd like to do something so that I don't have to manually add the \newpage or \label{sec:lastmeeting} bits. I think I need to do a \renewcommand but, as I understand it, it all gets a bit messy because \section takes arguments.

\documentclass{report}

\usepackage{hyperref}
\usepackage{nameref}
\usepackage{lipsum}


\begin{document}
Last meeting: \nameref{sec:lastmeeting}
\tableofcontents
\newpage\section{Meeting 1}\label{sec:lastmeeting}\lipsum[1-6]
\newpage\section{Meeting 2}\label{sec:lastmeeting}\lipsum[1-6]
\end{document}