Re: label on the left side of minted or listings

Hi,

Le 03/03/25 à 12h03, Jinsong Zhao a écrit :

I am typesetting code using minted or listings package. It works fine. Now I am
hoping to add a label, similar to equation label, on the left side of the code
block, looks like following. (%o1) is the label.
>
(%o1)  code here here here
       code here here
       code here
       code
>
However, I can't find a way to do this. Any hint will be appreciated.

IIUC, what you're after is a way to “escape” in LaTeX within the
listing. This can be done thanks to the `escapechar` option of listing
(I guess minted provides it as well). Here a MWE:

--8<---------------cut here---------------start------------->8---
\documentclass{article}
\usepackage{listings}
\lstset{
  basicstyle=\ttfamily,
  numbers=left,
  language=TeX,
  alsolanguage=[LaTeX]TeX,
  escapechar="
}
\begin{document}
In the following minimal file, the line~\ref{begin} begins the document and the
line~\ref{end} ends the document.
\begin{lstlisting}
\documentclass{article}
\begin{document}"\label{begin}"
Foo
\end{document}"\label{end}"
\end{lstlisting}
\end{document}
--8<---------------cut here---------------end--------------->8---

Best regards.
--
Denis