How to add labels in verbatim env. in Latex?

Question

I'm writing master thesis where I need to include some parts of program code. This code needs to be commented and properly described in text below/above. I would like to add some specific labels in the verbatim environment and use this labels as references in text. How can I do that?

Hi and Welcome to TeX.SX. You can have a look at our starter guide if you like. — Johannes_B, Dec 27 '14 at 12:41
Related Is there a possibility to make reference to the line in the lstlisting environment? — Johannes_B, Dec 27 '14 at 12:41
Could this code help: http://tex.stackexchange.com/questions/216295/how-do-i-highlight-a-block-of-source-code-in-latex/219606#219606 — Steven B. Segletes, Dec 27 '14 at 12:49
Alternately, there is the numberedblock package, http://tex.stackexchange.com/questions/202966/how-can-i-show-codeboxes/202969#202969 — Steven B. Segletes, Dec 27 '14 at 12:52

score 3 · Accepted Answer · edited Apr 13 '17 at 12:35

Thanks for your help guys. Based on question Is there a possibility to make reference to the line in the lstlisting environment? I've finaly used following:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{listings}

\begin{document}
\lstset{language=Pascal}
\lstset{escapeinside={(*@}{@*)}}
\begin{lstlisting}[frame=single, caption={Useless code}, label=useless_code, numbers=left]
 for i:=maxint to 0 do begin
   { comment }(*@\label{comment}@*) 
 end;
\end{lstlisting}
Line \ref{comment} of Listing~\ref{useless_code} shows a comment.

\end{document}

See following output:

Output

I know that it is not optimal solution, but for the purpose of my thesis seems to be sufficient solution.

How to add labels in verbatim env. in Latex?

1 Answers1