[Tex/LaTex] How to cross-reference custom labels in the enumitem lists without having the punctuation show up

#enumeratecross-referencingenumitemlists

I am using enumitem to handle my enumerate and itemize lists. I have a list like

\begin{enumerate}[label=Step \arabic{enumi}.]
\item step the first \label{en:step-1}
\item el secundo \label{en:step-2}
\item item the third \label{en:step-3}
\end{enumerate}

When I cross-reference one of these items, the punctuation shows up in the document. For example,

Let us reference \ref{en:step-1}.

gives me

Let us reference Step1..

The regular enumerate or itemize environments don't have this problem; punctuation does not show up when cross-referencing.

In the enumitem documentation there is an option afterlabel but that is only for inline lists.

Is there an option in enumitem, or a way of using enumitem that adds the correct punctuation to the list, but lets me cross-reference the label without the punctuation?

Best Answer

Use the ref key:

\begin{enumerate}[label=Step \arabic{enumi}.,ref=Step \arabic{enumi}]
\item step the first \label{en:step-1}
\item el secundo \label{en:step-2}
\item item the third \label{en:step-3}
\end{enumerate}

A complete example:

\documentclass{article}
\usepackage{enumitem}

\begin{document}

\begin{enumerate}[label=Step \arabic{enumi}.,ref=Step \arabic{enumi}]
\item step the first \label{en:step-1}
\item el secundo \label{en:step-2}
\item item the third \label{en:step-3}
\end{enumerate}
Let us reference \ref{en:step-1}.

\end{document}

enter image description here

Related Solutions

[Tex/LaTex] How to cross-reference items in description lists

I don't know of a pre-built package that allows you to do this, but if I correctly understand what you're after then it is achievable by combining a counter with custom commands and the hyperref package. The first step is to create a new counter for the described items, and a pair of new commands to use in place of \item and \ref. In the preamble, put the following:

\newcounter{desccount}
\newcommand{\descitem}[1]{%
  \item[#1] \refstepcounter{desccount}\label{#1}
}
\newcommand{\descref}[1]{\hyperref[#1]{#1}}

The new command \descitem is to be used in place of \item within a description environment. It takes a single argument and creates an item labeled with it. It also increments the new counter, sets it as the current value for the \ref command, and labels the location with the item's descriptor. The new command \descref takes the same argument and makes a hyperlink reference to the label, displaying the argument instead of the counter's value.

The commands work together like this:

\begin{description}
  \descitem{foo} foo is good
  \descitem{bar} bar is bad
\end{description}
...
For good things (see, for example \descref{foo})...

[Tex/LaTex] How to cross-reference labels in the text using LyX

The problem is that a \label attaches itself to the last numbered element in the document -- in your case a section -- it does not correspond to the exact position in the code/PDF.

As an alternative to Werner's suggestion, is to use \hyperlink and \hypertarget from hyperref. There is as far as I know no way of accessing these via the LyX GUI however, so you have to add them in ERTs. And as hyperref is required, you have to enable that under Document --> Settings --> PDF Properties, if you haven't already.

The syntax for these commands is

\hyperlink{<name>}{<text>}
\hypertarget{<name>}{<text>}

where <name> is the label, and <text> is printed in the PDF. As there is no support for these in the GUI, you can't use LyX' cross-referencing mechanism.

An example is seen in the screenshot below. I added \hypertarget{thing}{Cool stuff!} one place, and \hyperlink{thing}{Check this out.} where I wanted the link to be. Note that <text> in the \hypertarget can be empty if you want that.

Best Answer

Related Solutions

[Tex/LaTex] How to cross-reference items in description lists

[Tex/LaTex] How to cross-reference labels in the text using LyX

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