引用整行代码而不是行号

引用整行代码而不是行号

这段代码非常符合我的需要:

\documentclass{article}
\usepackage{xcolor}
\usepackage{listings}
\usepackage{lipsum}
\usepackage{hyperref}

\usepackage{lstlinebgrd}
\definecolor{myComment}{rgb}{0.0,0.5,0.0}
\definecolor{myKeyword}{rgb}{0.0,0.0,0.5}


\lstset
{
  aboveskip=\bigskipamount,
  belowskip=\bigskipamount,
  frame=tb,
  framesep=2pt,
  basicstyle=\scriptsize\ttfamily,
  keywordstyle=\color{myKeyword},
  commentstyle=\color{myComment}\itshape,
  captionpos=b,
  showstringspaces=false,
  fontadjust=true,
  language=Delphi,
  breaklines=true,
  numbers=left,
  numberstyle=\tiny,
  linebackgroundcolor={\ifodd\value{lstnumber}\color{gray!25}\fi},
  numbersep=5pt,
  escapeinside={(*@}{@*)},
}

\newcommand\coderef[1]{%
  $\Rightarrow$~\ref{#1}:~~%%
}%

\usepackage{hyperref}

\begin{document}

\begin{lstlisting}
program FileTest;

var
  myFile: file of Integer;

begin
  Assign(myFile, 'c:/test.ext'); (*@\label{FileTest-1}@*)
  Rewrite (myFile); (*@\label{FileTest-2}@*)
  Write(myFile, 1); (*@\label{FileTest-3}@*)
  Write(myFile, 2);
  Close(myFile); (*@\label{FileTest-4}@*)
end.
\end{lstlisting}


\coderef{FileTest-1} \lipsum[1]
\coderef{FileTest-2} \lipsum[2]
\coderef{FileTest-3} \lipsum[3]
\coderef{FileTest-4} \lipsum[4]

\end{document}

但在某些情况下,重复整行代码而不是行号可能会更好。我认为对于外部源文件来说,这在某种程度上是可行的,方法是使用

\lstinputlisting[firstline=x,lastline=x] 

虽然我还没有进一步调查。但是,在lstlisting环境中使用源是否可行?如何实现?

答案1

@FloDD,我稍微改变了你的解决方案,以获得适合你的正确数字。

您的宏\lst@PlaceNumber不是必需的,我在下面的 MWE 中对其进行了评论。

为了获得每行的正确数字,您必须firstnumber=\thelstlinereffirst在宏调用中添加\lstinputlisting

现在的结果是正确的数字。

新的 MWE 打印效果稍微漂亮一些:

\RequirePackage{filecontents}
\begin{filecontents*}{source.pas}
program FileTest;

var
  myFile: file of Integer;

begin
  Assign(myFile, 'c:/test.ext'); (*@\label{FileTest-1}@*)
  Rewrite (myFile); (*@\label{FileTest-2}@*)
  Write(myFile, 1); (*@\label{FileTest-3}@*)
  Write(myFile, 2);
  Close(myFile); (*@\label{FileTest-4}@*)
end.
\end{filecontents*}


\documentclass{article}
\usepackage{xcolor}
\usepackage{listings}
\usepackage{lstlinebgrd}
\usepackage{refcount,lipsum}
\usepackage{hyperref}

\definecolor{myComment}{rgb}{0.0,0.5,0.0}
\definecolor{myKeyword}{rgb}{0.0,0.0,0.5}


\lstset
{
  aboveskip=\bigskipamount,
  belowskip=\bigskipamount,
  frame=tb,
  framesep=2pt,
  basicstyle=\scriptsize\ttfamily,
  keywordstyle=\color{myKeyword},
  commentstyle=\color{myComment}\itshape,
  captionpos=b,
  showstringspaces=false,
  fontadjust=true,
  language=Delphi,
  breaklines=true,
  numbers=left,
  numberstyle=\tiny,
  linebackgroundcolor={\ifodd\value{lstnumber}\color{gray!25}\fi},
  numbersep=5pt,
  escapeinside={(*@}{@*)},
}

\newcommand\coderef[1]{%
  $\Rightarrow$~\ref{#1}:~~%%
}%

\newcounter{lstlinereffirst}
\newcounter{lstlinereflast}
\makeatletter
\let\rc@refused\refused% See http://tex.stackexchange.com/q/32807/5764
\newcommand{\lineref}[3]{{%
  \let\label\@gobble%
  \setcounterref{lstlinereffirst}{#1}%
  \setcounterref{lstlinereflast}{#2}%
  \lstinputlisting[%
    firstline=\thelstlinereffirst,%
    lastline=\thelstlinereflast,%
    firstnumber=\thelstlinereffirst%
  ]{#3}
}}

%\def\lst@PlaceNumber{\llap{\normalfont% http://tex.stackexchange.com/q/110187/5764
                %\lst@numberstyle{\the\lst@lineno}\kern\lst@numbersep}}%\lst@linebgrd}

\makeatother

\begin{document}

\lstinputlisting{source.pas}

\coderef{FileTest-1} \lipsum[1]
\coderef{FileTest-2} \lipsum[2]
\lineref{FileTest-1}{FileTest-3}{source.pas} \lipsum[3]
\coderef{FileTest-4} \lipsum[4]

\end{document}

结果: 在此处输入图片描述

答案2

我不完全确定这是否正是你想要的,但它提供了合理的输出。

在此处输入图片描述

\documentclass{article}
\usepackage{xcolor,listings,hyperref}% http://ctan.org/pkg/{xcolor,listings,hyperref}
\usepackage{filecontents,refcount,lipsum}% http://ctan.org/pkg/{filecontents,refcount,lipsum}
\lstset
{
  aboveskip=\bigskipamount,
  belowskip=\bigskipamount,
  frame=tb,
  framesep=2pt,
  basicstyle=\scriptsize\ttfamily,
  keywordstyle=\color{myKeyword},
  commentstyle=\color{myComment}\itshape,
  captionpos=b,
  showstringspaces=false,
  fontadjust=true,
  language=Delphi,
  breaklines=true,
  numbers=left,
  numberstyle=\tiny,
  numbersep=5pt,
  escapeinside={(*@}{@*)},
}
\definecolor{myComment}{rgb}{0.0,0.5,0.0}
\definecolor{myKeyword}{rgb}{0.0,0.0,0.5}

\newcommand{\coderef}[1]{%
  $\Rightarrow$~\ref{#1}:~~%%
}%
\newcounter{lstlineref}
\makeatletter
\let\rc@refused\refused% See https://tex.stackexchange.com/q/32807/5764
\newcommand{\lineref}[2]{{%
  \let\label\@gobble%
  \setcounterref{lstlineref}{#1}%
  \lstinputlisting[firstline=\thelstlineref,lastline=\thelstlineref]{#2}
}}
\def\lst@PlaceNumber{\llap{\normalfont% https://tex.stackexchange.com/q/110187/5764
                \lst@numberstyle{\the\lst@lineno}\kern\lst@numbersep}}
\makeatother


\begin{document}

\begin{filecontents*}{source.p}
program FileTest;

var
  myFile: file of Integer;

begin
  Assign(myFile, 'c:/test.ext'); (*@\label{FileTest-1}@*)
  Rewrite (myFile); (*@\label{FileTest-2}@*)
  Write(myFile, 1); (*@\label{FileTest-3}@*)
  Write(myFile, 2);
  Close(myFile); (*@\label{FileTest-4}@*)
end.
\end{filecontents*}
\lstinputlisting{source.p}

\coderef{FileTest-1} \lipsum[1]
\coderef{FileTest-2} \lipsum[2]
\lineref{FileTest-3}{source.p} \lipsum[3]
\coderef{FileTest-4} \lipsum[4]

\end{document}

这个想法是将代码写入文件(使用filecontents),然后输入整个列表 - 这提高了可移植性,源代码包含在源代码中,.tex而不是作为独立文件包含在其他地方。此外,这允许使用新宏轻松提取一行。它打印包含引用的\lineref{<ref>}{<source>}行。<source><ref>refcount提供引用计数器接口。此外,\label还启动了本地无操作以避免产生重复标签。

当导入范围并希望与原始源保持一致的编号时,需要进行行号校正,这要归功于列出符合linerange规范的行号

根据您的发行日期,您可能缺少 的定义\rc@refused。我已经包括了补丁仅当您遇到错误时才应使用它。

答案3

@Werner:为了更好地满足我的需要,我对你的答案做了一些修改:

\documentclass{article}
\usepackage{xcolor}
\usepackage{listings}
\usepackage{filecontents,refcount,lipsum}
\usepackage{hyperref}

\usepackage{lstlinebgrd}
\definecolor{myComment}{rgb}{0.0,0.5,0.0}
\definecolor{myKeyword}{rgb}{0.0,0.0,0.5}


\lstset
{
  aboveskip=\bigskipamount,
  belowskip=\bigskipamount,
  frame=tb,
  framesep=2pt,
  basicstyle=\scriptsize\ttfamily,
  keywordstyle=\color{myKeyword},
  commentstyle=\color{myComment}\itshape,
  captionpos=b,
  showstringspaces=false,
  fontadjust=true,
  language=Delphi,
  breaklines=true,
  numbers=left,
  numberstyle=\tiny,
  linebackgroundcolor={\ifodd\value{lstnumber}\color{gray!25}\fi},
  numbersep=5pt,
  escapeinside={(*@}{@*)},
}

\newcommand\coderef[1]{%
  $\Rightarrow$~\ref{#1}:~~%%
}%

\newcounter{lstlinereffirst}
\newcounter{lstlinereflast}
\makeatletter
\let\rc@refused\refused% See http://tex.stackexchange.com/q/32807/5764
\newcommand{\lineref}[3]{{%
  \let\label\@gobble%
  \setcounterref{lstlinereffirst}{#1}%
  \setcounterref{lstlinereflast}{#2}%
  \lstinputlisting[firstline=\thelstlinereffirst,lastline=\thelstlinereflast]{#3}
}}

\def\lst@PlaceNumber{\llap{\normalfont% http://tex.stackexchange.com/q/110187/5764
                \lst@numberstyle{\the\lst@lineno}\kern\lst@numbersep}\lst@linebgrd}

\makeatother

\begin{document}

\begin{filecontents*}{source.pas}
program FileTest;

var
  myFile: file of Integer;

begin
  Assign(myFile, 'c:/test.ext'); (*@\label{FileTest-1}@*)
  Rewrite (myFile); (*@\label{FileTest-2}@*)
  Write(myFile, 1); (*@\label{FileTest-3}@*)
  Write(myFile, 2);
  Close(myFile); (*@\label{FileTest-4}@*)
end.
\end{filecontents*}
\lstinputlisting{source.pas}


\coderef{FileTest-1} \lipsum[1]
\coderef{FileTest-2} \lipsum[2]
\lineref{FileTest-1}{FileTest-3}{source.pas} \lipsum[3]
\coderef{FileTest-4} \lipsum[4]

\end{document}

在此处输入图片描述

现在我可以指定代码行的范围并绘制斑马风格的背景。谢谢你的帮助!

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