引用电子邮件文本中的行

如何解决引用电子邮件文本中的行

我正在尝试将Latex用于某个目的，该目的可能不是专门针对该目的而设计的，并且具有一定的难度。我试图包括一系列电子邮件中的文本，然后我想写一个摘要，引用电子邮件中的行号，以引起人们对会话某些部分的注意。

对于行编号，我发现lineno包运行良好，并允许我使用\ linelabel {label1}宏设置引用目标，然后可以使用\ ref {label1}进行引用。

但是，由于文本格式的电子邮件链中有许多需要转义的字符（例如>字符），因此我一直在寻找一个程序包，该程序包使我可以将文本视为预格式化的文本，同时仍可以解析\ linelabel Latex宏

我已经尝试了逐字环境和lstlisting环境，但是两者似乎都忽略了\ linelabel宏。有人知道我想要的包装吗？

谢谢！

编辑：添加了MWE。在背面运行。演示了使用lineno包，我可以成功获取要输出的行号，并且在电子邮件内容中定义标签时可以引用它们，但是有许多字符需要转义。还显示了将电子邮件内容放在lstlisting块中，这会更好地格式化电子邮件，但会丢失linelabel宏解析。寻找快乐的媒介。

\documentclass[12pt,stdletter,orderfromtodate,sigleft]{newlfm}

\usepackage{listings}

\lstset{basicstyle=\footnotesize,stringstyle=\footnotesize,language=,}


\usepackage{lineno}

\begin{document}
\section{Summary}

Refer to line \ref{label1}.  And then he did it again on line \ref{label2}.
\newpage

\linenumbers

\section{Emails with no formatting}

Email response number 2

On Wed,Sep 9,2020,9:15 AM Anonymous wrote:

> Hi Umptyscrunch,>
> I'm letting you know that I did that thing.
>
> Thanks,> Marklar
>

Hi Marklar,\linelabel{label1} Yeahhh.  I'm going to need you to come in this Saturday.  

Thanks,Umptyscrunch

---------- Forwarded message ---------

No rush,it's all good my friend.  It's a minimal working example.

\section{Emails with listing formatting}

\begin{lstlisting}
Email response number 2

On Wed,\linelabel{label2} Yeahhh.  I'm going to need you to come in this Saturday.  

Thanks,it's all good my friend.  It's a minimal working example.
\end{lstlisting}

\end{document}

解决方法

我将使用listings软件包。它可以显示行号，参考特定行，甚至可以显示颜色回复：

\documentclass[12pt,stdletter,orderfromtodate,sigleft]{newlfm}

\usepackage{listings}

\lstset{
  basicstyle=\footnotesize\ttfamily,stringstyle=\footnotesize,escapeinside={&}{&},numbers=left,morecomment=[l][\color{blue!80}]{> },morecomment=[l][\color{red!80}]{>> },}


\begin{document}
\section{Summary}

Refer to line \ref{label2}. 

\begin{lstlisting}
Email response number 2

On Wed,Sep 9,2020,9:15 AM Anonymous wrote:

> Hi Umptyscrunch,>
> I'm letting you know that I did that thing.
>
>> previous reply
>
> Thanks,> Marklar
>

Hi Marklar,&\label{label2}&Yeahhh.  I'm going to need you to come in this Saturday.  

Thanks,Umptyscrunch

---------- Forwarded message ---------

No rush,it's all good my friend.  It's a minimal working example.
\end{lstlisting}

\end{document}

（用您的电子邮件中不会出现的任何字母或字母序列替换转义字符&）

,

这是我比较满意的地方。尽管我不想在每行末尾插入换行符\\。我宁愿像逐字记录包一样，将输入中的换行符视为输出中的换行符。切换为快递字体可解决>字符显示为？的问题。在输出中。

\documentclass[12pt,sigleft]{newlfm}

\renewenvironment{email}{\fontfamily{pcr}\selectfont\begin{footnotesize}}{\end{footnotesize}\par}

\renewcommand{\L}{\linelabel}


\usepackage{lineno}

\begin{document}
\section{Summary}

Refer to line \ref{label1}.  And then he did it again on line \ref{label2}.
\newpage

\linenumbers

\section{Emails with no formatting}



\begin{email}
Email response number 2\\
\\
On Wed,9:15 AM Anonymous wrote:\\
\\
> Hi Umptyscrunch,\\
>\\
> I'm letting you know that I did that thing.\\
>\\
> Thanks,\\
> Marklar\\
>
\\
Hi Marklar,\\
\L{label1}Yeahhh.  I'm going to need you to come in this Saturday.  This line is so long it should wrap.  I believe you have my stapler. \\ 
\\
Thanks,\\
Umptyscrunch

---------- Forwarded message ---------

No rush,it's all good my friend.  \linelabel{label2}It's a minimal working example.

\end{email}

\end{document}