How does one extract specific attributes of a label e.g. just the section number?

Question

I'm using hyperref and calling \autoref to refer to tables, sections, chapters, etc.. However, sometimes I just want to refer to the section number of a table (e.g. 7.2 as opposed to Table 7.2).

How do we do this?

More generally, how do we extract the (5?) attributes of a label. I know \pageref gets the page, but what about the others?

Also, some commands are issued in .aux like:

\@writefile{lot}{\contentsline
{figure}{\numberline
{5.2}{\ignorespaces Galois
Correspondence}}{20}{figure.5.2}}

How does extract, say, the 2.2nd attribute ({\ignorespaces Galois Correspondence})?

Answer 1

Use the \ref command (core LaTeX) and the \nameref command (provided by the nameref package, which is loaded by hyperref).

\documentclass{article}

\usepackage{hyperref}

\begin{document}

\begin{table}
\centering
(Table content)
\caption{foo}
\label{tab:foo}
\end{table}

This is a reference to \autoref{tab:foo}.

One could also refer to the number \ref{tab:foo} or to the name \nameref{tab:foo}.

\end{document}