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带引用的代码的全局行号

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带引用的代码的全局行号

我正在尝试编写一个包含多个代码示例的文档，并且我希望所有代码示例共享相同的全局行号，然后我能够引用其中一个示例中的特定行号。

一个概念性的例子可能是这样的：

Some text throughout the document
 10 | void foo() {}
 11 | void bar() {}
with additional text
 12 | biz = baz(123);
as seen in line 11 we define bar which is changed by something in line 12

理想情况下，代码示例应该位于verbatim或listing类型环境中。

答案1

包裹listings可以帮你做到这一点。

escapeinside={*@}{@*}让我们用命令定义选项\lstset。然后您可以使用例如为*@\label{tes:line7}@*给定代码的第 7 行设置标签（我在这里只使用 tex 代码，称为\jobname-mwe.tex）然后您可以使用引用该标签

In line~\ref{tes:line7} you see

使用命令

\lstinputlisting[firstline=1,lastline=7]

你定义只想显示从 1 到 7 的行。稍后你可以继续

\lstinputlisting[firstline=9,firstnumber=10]{\jobname-mwe.tex}

显示 9 及以下 ...

完成 MWE

\RequirePackage{filecontents}
\begin{filecontents*}{\jobname-mwe.tex}
\documentclass[%
  toc=flat,    % No intention in toc
  toc=listof,  % figures and tables in toc
  headsepline, % line between head and text  *@\label{tes:line7}@*
]{scrartcl} 
\usepackage[utf8]{inputenc} 

\usepackage{graphicx}
\usepackage{scrlayer-scrpage}
\lohead{John Doe}
\rohead{Example for tex-stackexchange.com}
\pagestyle{scrheadings}

\usepackage[math]{blindtext}% dummy text with formulas


\begin{document}

\tableofcontents%            Table of content
\listoffigures%              List of figures

\Blinddocument%              includes dummy document
\begin{figure}%
\includegraphics[width=\columnwidth]{example-image-a}% *@\label{tes:line27}@*
\caption{Test image from package mwe}% install package mwe!
\label{fig:ex-a}%
\end{figure}
\blindtext
\begin{figure}%
\includegraphics[width=\columnwidth]{example-image-b}%
\caption{Test image from package mwe}%
\label{fig:ex-b}%
\end{figure}
\blindtext

\end{document} 
\end{filecontents*}


\documentclass{scrartcl}

\usepackage{listings}
\usepackage{xcolor}


\lstset{%
  basicstyle={\ttfamily},
  frame=l,
  xleftmargin={0.75cm},
  numbers=left,
  stepnumber=1,
  firstnumber=1,
  numberfirstline=true,
  language={TeX},
  tabsize=2,
  showtabs=false,
  showspaces=false,
  showstringspaces=false,
  extendedchars=true,
  breaklines=true,
  escapeinside={*@}{@*}
}


\begin{document}

Complete listing:
\lstinputlisting{\jobname-mwe.tex}
\clearpage
The following lines lines shows how to~\dots In line~\ref{tes:line7} you see
\lstinputlisting[firstline=1,lastline=7]{\jobname-mwe.tex}
The following lines shows that \dots In line~\ref{tes:line27} you see
\lstinputlisting[firstline=9,firstnumber=10]{\jobname-mwe.tex}
\end{document}

给你第二页：

在此处输入图片描述

答案2

该enumitem包将会执行此操作。

\documentclass{article}
\usepackage{enumitem}

\begin{document}

\noindent Some text throughout the document
\setlist{nosep}
\begin{enumerate}[leftmargin=2em,label=\arabic{enumi},start=10]
\item \verb+| void foo() {}+
\item \verb+| void bar() {}+\label{bar}
\end{enumerate}
\noindent with additional text
\begin{enumerate}[resume*]
\item \verb+| biz = baz(123);+\label{biz}
\end{enumerate}
as seen in line \ref{bar} we define bar which is changed by something in line \ref{biz}

\end{document}

产生以下内容：

在此处输入图片描述

答案3

这个答案部分基于这个答案但是诀窍是将其添加firstnumber=last到 lstset 中，它将继续使用前一个块中的相同编号。

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

\lstset{%
  basicstyle={\ttfamily},
  frame=l,
  xleftmargin={0.75cm},
  numbers=left,
  stepnumber=1,
  firstnumber=1,
  numberfirstline=true,
  language={TeX},
  tabsize=2,
  showtabs=false,
  showspaces=false,
  showstringspaces=false,
  extendedchars=true,
  breaklines=true,
  escapeinside={@}{@},
  firstnumber=last
}


\begin{document}

\begin{lstlisting}
something 1 @\label{line:ref1}@
\end{lstlisting}

something in between

\begin{lstlisting}
  block 2
\end{lstlisting}

making a reference to line~\ref{line:ref1}


\end{document}

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