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仅显示列表的顶级要点作为概览

tag-icon • tag-icon lists enumitem
仅显示列表的顶级要点作为概览

我有一个如下列表：

  • 第 1 项概述
    • 第 1 项的更深入描述第 1 部分
    • 第 1 项的更深入描述的第 2 部分
    • 第 1 项的更深入描述第 3 部分
  • 第 2 项概述
    • 第 2 项的更深入描述第 1 部分
    • 第 2 项的更深入描述第 2 部分
    • 第 2 项的更深入描述第 3 部分
  • ETC...

我希望在文档顶部有一个单独的列表，只显示列表中的顶级项目作为概览，而无需复制和粘贴项目。因此，上述列表的概览应如下所示：

  • 第 1 项概述
  • 第 2 项概述
  • ETC...

为了进一步说明，我的文档如下所示：

\documentclass[10pt, letterpaper]{article}

\usepackage{enumitem}


\begin{document}

\begin{enumerate}
    \item Overview of item 1
    \begin{enumerate}[label = (\Alph*)]
        \item Part 1 of more in depth description of item 1
        \item Part 2 of more in depth description of item 1
        \item Part 3 of more in depth description of item 1
    \end{enumerate}
    \item Overview of item 2
    \begin{enumerate}[label = (\Alph*)]
        \item Part 1 of more in depth description of item 2
        \item Part 2 of more in depth description of item 2
        \item Part 3 of more in depth description of item 2
    \end{enumerate}
    \item etc...
\end{enumerate}

\end{document}

我想知道实现这一目标的优雅方法是什么。

答案1

这是一个解决方案（一个技巧）

\documentclass[10pt, letterpaper]{article}

\usepackage{enumitem}
\usepackage{etoolbox}
\newcounter{mt}
\BeforeBeginEnvironment{enumerate}{\stepcounter{mt}\setbox\themt\vbox\bgroup}
\AfterEndEnvironment{enumerate}{\egroup\ifnum\value{mt}=1\unvbox1\fi\addtocounter{mt}{-1}}

\begin{document}

\begin{enumerate}
    \item Overview of item 1 
    \begin{enumerate}[label = (\Alph*)]
        \item Part 1 of more in depth description of item 1
        \item Part 2 of more in depth description of item 1
        \item Part 3 of more in depth description of item 1
    \end{enumerate}
    \item Overview of item 2
    \begin{enumerate}[label = (\Alph*)]
        \item Part 1 of more in depth description of item 2
        \item Part 2 of more in depth description of item 2
        \item Part 3 of more in depth description of item 2
    \end{enumerate}
    \item etc...
\end{enumerate}

bla bla

\begin{enumerate}
    \item Overview of item A1
    \begin{enumerate}[label = (\Alph*)]
        \item Part 1 of more in depth description of item 1
         \begin{enumerate}[label = (\alph*)]
             \item Part 1 of more in depth description of item 1.A
             \item Part 2 of more in depth description of item 1.A
             \item Part 3 of more in depth description of item 1.A
        \end{enumerate}         
        \item Part 2 of more in depth description of item 1
        \item Part 3 of more in depth description of item 1
    \end{enumerate}
    \item Overview of item A2
    \begin{enumerate}[label = (\Alph*)]
        \item Part 1 of more in depth description of item 2
        \item Part 2 of more in depth description of item 2
        \item Part 3 of more in depth description of item 2
    \end{enumerate}
    \item etc...A ...
\end{enumerate}

\end{document}

答案2

\item具有自动使用和命令包装器的中间版本\toplevel*，然后忽略\sublevel命令。

\documentclass{article}

\usepackage{environ}

\usepackage{enumitem}

\usepackage{xparse}

\newif\ifsublevels
\sublevelstrue
\ExplSyntaxOn

\NewDocumentCommand{\sublevel}{m}{%
  \ifsublevels
  \seq_set_from_clist:Nn \l_tmpa_seq {#1}
  \begin{enumerate}
  \seq_map_inline:Nn \l_tmpa_seq {\item ##1}
  \end{enumerate}
  \fi
}


\NewDocumentCommand{\toplevel}{sO{}m}{%
  \IfBooleanT{#1}{%
    \global\sublevelsfalse
  }%
  \seq_set_from_clist:Nn \l_tmpb_seq {#3}
  \begin{enumerate}[#2]
    \seq_map_inline:Nn  \l_tmpb_seq {\item ##1}
  \end{enumerate}
}

\ExplSyntaxOff


\begin{document}

\toplevel{Top item 1 \sublevel{Sub level 1, Sub level 2, Sub level 3}, Top Item 2 \sublevel{Sub level 11, Sub level 21}}

\toplevel*{Top item 1 \sublevel{Sub level 1, Sub level 2, Sub level 3}, Top Item 2 \sublevel{Sub level 11, Sub level 21}}


\end{document}

答案3

我建议为该应用程序定义一个特殊的环境，这样您就可以更自由地选择要显示的内容。

\documentclass[10pt, letterpaper]{article}

\usepackage{enumitem}
\usepackage{environ}

\makeatletter
\newenvironment{overview}[1]
 {\begin{enumerate}\relax
    \ifnum#1=0
      \let\do@suboverview\@gobble
    \else
      \def\do@suboverview##1{%
        \begin{enumerate}[label=(\Alph*)]##1\end{enumerate}%
      }%
    \fi
 }
 {\end{enumerate}}
\NewEnviron{suboverview}{\do@suboverview{\BODY}}
\makeatother


\begin{document}

\section{Short overview}

\begin{overview}{0}
    \item Overview of item 1
    \begin{suboverview}
        \item Part 1 of more in depth description of item 1
        \item Part 2 of more in depth description of item 1
        \item Part 3 of more in depth description of item 1
    \end{suboverview}
    \item Overview of item 2
    \begin{suboverview}
        \item Part 1 of more in depth description of item 2
        \item Part 2 of more in depth description of item 2
        \item Part 3 of more in depth description of item 2
    \end{suboverview}
    \item etc...
\end{overview}

\section{Long overview}

\begin{overview}{1}
    \item Overview of item 1
    \begin{suboverview}
        \item Part 1 of more in depth description of item 1
        \item Part 2 of more in depth description of item 1
        \item Part 3 of more in depth description of item 1
    \end{suboverview}
    \item Overview of item 2
    \begin{suboverview}
        \item Part 1 of more in depth description of item 2
        \item Part 2 of more in depth description of item 2
        \item Part 3 of more in depth description of item 2
    \end{suboverview}
    \item etc...
\end{overview}

\end{document}

如您所见，从简短概述到详细概述只需要将参数更改为overview。

在此处输入图片描述

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