General ⇒ sections inside longtable: proper referencing

[akopts]

My document consists of a longtable,
which contains sections and subsesctions (shown in multicolumns).
They are defined implicitly, e.g., not via \section, but via
\refstepcounter{section}\addcontentsline{toc}{section}{\protect\numberline{\thesection}#1}

Each row in the table is a subsubsection. When I attempt to refer
to a row, I always get \thetable as a reference,
whereas I want \thesection\thesubsection.\thesubsubsection.

How do I redefine \label so that it would put the above sequence to the .aux file?
Spent lots of time searching, cannot find any clue.
Any other approaches?

In relation to that, is it possible to print definition of arbitrary LaTeX
command which is defined as a macro? It would be very convenient
for the purpose of redefining things...

Thanks,
Alex

[phi]

Please post a minimal working example. \label normally always refers to the last occurrence of \refstepcounter, so this should work.
Regarding your second question: \meaning\foo expands to the definition of \foo, whereas \show\foo prints the definition of \foo on the terminal.

[akopts]

Here is a working example. Both labels refer to the table number,
whereas I want \ref to print 1.1.1 and 2.2.1

Thanks,
Alex

Code: Select all

\documentclass{report}
\usepackage{longtable}
\usepackage{hyperref}
\usepackage{ifthen}
\setcounter{tocdepth}{3}
\renewcommand{\thesection}{\arabic{section}}
\renewcommand{\thesubsection}{\arabic{section}.\arabic{subsection}}
\renewcommand{\thesubsubsection}{\arabic{section}.\arabic{subsection}.\arabic{subsubsection}}
\newcommand{\padding}{7pt}
\newcommand{\entry}[4]{
  \refstepcounter{subsubsection}
  \parbox{13mm}{\vspace*{\padding}\centering \ifthenelse{\equal{\thesection}{0}}{}{\thesubsubsection} \vspace*{\padding}} &
  \parbox{25mm}{\vspace*{\padding}\raggedright #1 \vspace*{\padding}} &
  \parbox{10mm}{\vspace*{\padding}\centering #2 \vspace*{\padding}} &
  \parbox{30mm}{\vspace*{\padding}\raggedright #3 \vspace*{\padding}} &
  \parbox{40mm}{\vspace*{\padding}\raggedright #4 \vspace*{\padding}} \\ \hline
}
\newcommand{\sect}[1]{
  \hline\multicolumn{5}{|c|}{
    \refstepcounter{section}
    \addcontentsline{toc}{section}{\protect\numberline{\thesection}#1}
    \parbox{128mm}{
      \vspace*{\padding}\centering\large\bf \thesection. #1 \vspace*{\padding}
    }
  }\\ \hline
}
\newcommand{\subsect}[1]{
  \hline\multicolumn{5}{|c|}{
    \refstepcounter{subsection}
    \addcontentsline{toc}{subsection}{\protect\numberline{\thesubsection}#1}
    \parbox{128mm}{
      \vspace*{\padding}\centering \thesubsection. #1 \vspace*{\padding}
    }
  }\\ \hline
}
\begin{document}
\tableofcontents
\begin{longtable}{|l|l|l|l|l|}
\hline\hline
\entry{\bf c1}{\bf c2}{\bf c3}{\bf c4}
\hline\hline
\endhead
\sect{Section 1}
\subsect{Subsection 1}
\entry{a}{b}{\label{l1} c}{d}
\entry{e}{f}{\ref{l1} g}{h}
\sect{Section 2}
\subsect{Subsection 1}
\subsect{Subsection 2}
\entry{m}{n}{\label{l2} o}{p}
\entry{i}{j}{\ref{l2} k}{l}
\end{longtable}
\end{document}

[phi]

OK, this is a tough one. Seems as if longtable puts each cell in a separate box or group, so that assignments are local to the cell. Here is a hack to define and restore the current label text globally:

Code: Select all

\makeatletter
\newcommand{\entry}[4]{
  \stepcounter{subsubsection}\global\let\old@currentlabel\@currentlabel\xdef\@currentlabel{\thesubsubsection}%
  \parbox{13mm}{\vspace*{\padding}\centering \ifthenelse{\equal{\thesection}{0}}{}{\thesubsubsection} \vspace*{\padding}} &
  \parbox{25mm}{\vspace*{\padding}\raggedright #1 \vspace*{\padding}} &
  \parbox{10mm}{\vspace*{\padding}\centering #2 \vspace*{\padding}} &
  \parbox{30mm}{\vspace*{\padding}\raggedright #3 \vspace*{\padding}} &
  \parbox{40mm}{\vspace*{\padding}\raggedright #4 \vspace*{\padding}} \global\let\@currentlabel\old@currentlabel \\ \hline
}
\makeatother

[akopts]

Wow! Thanks!