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LATEx 中具有不同左边距的嵌套枚举列表

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LATEx 中具有不同左边距的嵌套枚举列表

我正在尝试创建嵌套枚举列表的模板。第一个列表的标签与页面的左边距对齐（使用环境 FirstList）。然后，后续嵌套列表会缩进一些空格（使用环境 SecondList）。为了缩进嵌套列表，我使用了 adjustwidth，但是，这会导致多出一对括号。请参见下图。

   \documentclass[12pt]{article}
 % Packages used in template.
 \usepackage{enumitem}
 \usepackage{changepage}
 \usepackage{etoolbox}

 % Set left, right, top, and bottom margins of the paper.
 \usepackage[a4paper, left = 1.5in, right = 0.70in, top = 0.5in, bottom = 2.2in]{geometry}
 \voffset = 0.15in
 \headsep = 31pt
 \topmargin = -48pt

 % Create new environments for listings
 \setlist[enumerate]{wide, align=left, topsep = 0in, parsep = 0.24in, partopsep = 0in, itemsep = 0in, labelindent = 0in, labelsep = 0.36in}
 \newenvironment{FirstList}[1][]{ \begingroup \let \olditem \item
     \renewcommand \item {\olditem
     \ifnum\value{enumi} > 9
     \setlength\hskip{-0.14in}
     \fi
     \ifnum\value{enumi} > 99
     \setlength\hskip{-0.14in}
     \fi
     \ifnum\value{enumi} > 999
     \setlength\hskip{-0.14in}
     \fi
     }
     \begin{enumerate}[#1] } {\end{enumerate} \endgroup}

 \newenvironment{SecondList}{ \begin{adjustwidth}{0.48in}{0in}
     \begin{enumerate}}{ \end{enumerate} \end{adjustwidth}}

 \begin{document}
     \begin{FirstList}

        \item This template is made for A4 page size. I will try to extend this point into more than two lines.

        \item In this template,

        \begin{SecondList}
            \item Left margin is $\mathrm{1.5}$ in.

            \item Right margin is $\mathrm{0.7}$ in.

        \end{SecondList}

        \item This is another enumerated point.

         \begin{SecondList}
            \item This is another enumerated point.

            \item This is another enumerated point.
        \end{SecondList}

         \item This is another enumerated point.

    \end{FirstList}
 \end{document}

在此处输入图片描述

问题 1-如何移除多余的支架？

问题 2——是否可以创建一个可以做到这一点的单一环境？

答案1

我留给你关于边距的细节，从你的问题中看不太清楚。特别是，添加所需的值rightmargin。

你能和应该为此使用单一环境并且不要超载enumerate。

我改变了 的一些值geometry，首先是因为\voffset永远不应该用于定位文本块，也不应该修改\topmargin。

\documentclass[12pt]{article}
% Packages used in template.
\usepackage{enumitem}
\usepackage{changepage}
\usepackage{etoolbox}

% Set left, right, top, and bottom margins of the paper.
\usepackage[
  showframe,
  a4paper,
  left = 1.5in,
  right = 0.70in,
  top = 1in,
  bottom = 1.05in,
  headsep=31pt,
]{geometry}
%\voffset = 0.15in  %%%% <---- NO
%\headsep = 31pt    %%%% <---- NO
%\topmargin = -48pt %%%% <---- NO

% Create new environments for listings
\newlist{mylist}{enumerate}{3}
\setlist[mylist]{
  wide,
  align=left,
  topsep = 0in,
  parsep = 0.24in,
  partopsep = 0in,
  itemsep = 0in,
  labelsep = 0in,
  itemindent=0.5in,
  labelindent = -0.5in,
  labelwidth=0.5in,
}
\setlist[mylist,1]{leftmargin=0in,label=\arabic*.}
\setlist[mylist,2]{leftmargin=0.5in,label=(\alph*)}
\setlist[mylist,3]{leftmargin=1in,label=(\roman*)}

\begin{document}

\begin{mylist}

  \item This template is made for A4 page size. I will try to extend this point 
        into more than two lines.

  \item In this template,

  \begin{mylist}
    \item Left margin is $\mathrm{1.5}$ in.

    \item Right margin is $\mathrm{0.7}$ in.

  \end{mylist}

  \item This is another enumerated point.

  \begin{mylist}
    \item This is another enumerated point.

    \item This is another enumerated point.
  \end{mylist}

  \item This is another enumerated point.

\end{mylist}

\end{document}

在此处输入图片描述

答案2

将环境更改SecondList为

\newenvironment{SecondList}
  {\begin{enumerate}[leftmargin=1in, rightmargin=0in, labelindent=*]}
  {\end{enumerate}}

作品。

  • 对应leftmargin=1in, rightmargin=0in于您的原始值\begin{adjustwidth}{0.48in}{0in}。这里我使用较大的值，leftmargin因为您使用了较大的值labelsep = 0.36in。
  • 强制labelindent=*重新计算。

完整示例：

\documentclass[12pt]{article}
% Packages used in template.
\usepackage{enumitem}
\usepackage{changepage}
\usepackage{etoolbox}

% Set left, right, top, and bottom margins of the paper.
\usepackage[a4paper, left = 1.5in, right = 0.70in, top = 0.5in, bottom = 2.2in, showframe]{geometry}

% Create new environments for listings
\setlist[enumerate]{wide, align=left, topsep = 0in, parsep = 0.24in, partopsep = 0in, itemsep = 0in, labelindent = 0in, labelsep = 0.36in}

\newenvironment{FirstList}[1][]{ \begingroup \let \olditem \item
   \renewcommand \item {\olditem
   \ifnum\value{enumi} > 9
   \setlength\hskip{-0.14in}
   \fi
   \ifnum\value{enumi} > 99
   \setlength\hskip{-0.14in}
   \fi
   \ifnum\value{enumi} > 999
   \setlength\hskip{-0.14in}
   \fi
   }
   \begin{enumerate}[#1] } {\end{enumerate} \endgroup}

\newenvironment{SecondList}
  {\begin{enumerate}[leftmargin=1in, rightmargin=0in, labelindent=*]}
  {\end{enumerate}}

\begin{document}
   \begin{FirstList}

      \item This template is made for A4 page size. I will try to extend this point into more than two lines.

      \item In this template,

      \begin{SecondList}
          \item Left margin is $\mathrm{1.5}$ in.

          \item Right margin is $\mathrm{0.7}$ in.

      \end{SecondList}

      \item This is another enumerated point.

      \begin{SecondList}
          \item This is another enumerated point.

          \item This is another enumerated point.
      \end{SecondList}

      \item This is another enumerated point.

    \end{FirstList}
\end{document}

修改示例的输出

顺便一提，

  • 不建议设置\voffset为非零值，完全可以避免。使用geometry选项并仅使用它们就足够了。
  • \setlist例如，可以为不同级别的列表设置不同的样式\setlist[enumerate, 2]{...}。因此您的FistList和SecondList环境也是可以避免的。

答案3

正如 muzimuzhi 在这篇好文章的结尾所说，枚举项包提供了更好的工具来做这种事情。您可以使用它\setlist[enumerate,1]{...}来设置环境第一级所需的参数enumerate，然后\setlist[enumerate,2]{...}设置第二级等。因此，按照 muzimuzhi 的建议，您可以使用以下命令设置enumerate环境：

\setlist[enumerate,1]{
  wide,
  align=left,
  topsep = 0in,
  parsep = 0.24in,
  partopsep = 0in,
  itemsep = 0in,
  labelindent = 0in,
  labelsep = 0.36in,
}
\setlist[enumerate,2]{
  leftmargin=1in,
  rightmargin=0in,
  labelindent=*
}

这仍然保留了您的自定义\item命令。与其每次FirstList使用环境时都定义它，不如将此代码移到序言中，如下所示：

\let\olditem\item
\newcommand\MyItem {\olditem
   \ifnum\value{enumi} > 9   \setlength\hskip{-0.14in}\fi
   \ifnum\value{enumi} > 99  \setlength\hskip{-0.14in}\fi
   \ifnum\value{enumi} > 999 \setlength\hskip{-0.14in}\fi
}

要enumerate使用它，您可以将其添加before=\let\item\MyItem 到\setlist命令中。实现这一点后，您可以删除FirstList和SecondList环境，而只需使用enumerate（或者，您也可以用定义新的列表环境\newlist），这样您的 MWE 就变成了

\documentclass[12pt]{article}
% Packages used in template.
\usepackage{enumitem}
\usepackage{changepage}
\usepackage{etoolbox}

% Set left, right, top, and bottom margins of the paper.
\usepackage[a4paper, left = 1.5in, right = 0.70in, top = 0.5in, bottom = 2.2in, showframe]{geometry}

\let\olditem\item
\newcommand\MyItem {\olditem
   \ifnum\value{enumi} > 9   \setlength\hskip{-0.14in}\fi
   \ifnum\value{enumi} > 99  \setlength\hskip{-0.14in}\fi
   \ifnum\value{enumi} > 999 \setlength\hskip{-0.14in}\fi
}

% Create new environments for listings
\setlist[enumerate,1]{
  wide,
  align=left,
  topsep = 0in,
  parsep = 0.24in,
  partopsep = 0in,
  itemsep = 0in,
  labelindent = 0in,
  labelsep = 0.36in,
  before=\let\item\MyItem
}
\setlist[enumerate,2]{
  leftmargin=1in,
  rightmargin=0in,
  labelindent=*
}

\begin{document}

   \begin{enumerate}
      \item This template is made for A4 page size. I will try to extend
      this point into more than two lines.

      \item In this template,

      \begin{enumerate}
          \item Left margin is $\mathrm{1.5}$ in.
          \item Right margin is $\mathrm{0.7}$ in.
      \end{enumerate}

      \item This is another enumerated point.

      \begin{enumerate}
          \item This is another enumerated point.
          \item This is another enumerated point.
      \end{enumerate}

      \item This is another enumerated point.

    \end{enumerate}

\end{document}

输出结果和 muzimuzhi 的回答一模一样：

在此处输入图片描述

编辑

据我所知，这在嵌套中确实可以正常工作？例如，\documentclass[12pt]{article} % 模板中使用的包。\usepackage{enumitem} \usepackage{changepage} \usepackage{etoolbox}

% Set left, right, top, and bottom margins of the paper.
\usepackage[a4paper, left = 1.5in, right = 0.70in, top = 0.5in, bottom = 2.2in, showframe]{geometry}

\let\olditem\item
\newcommand\MyItem {\olditem
   \ifnum\value{enumi} > 9   \setlength\hskip{-0.14in}\fi
   \ifnum\value{enumi} > 99  \setlength\hskip{-0.14in}\fi
   \ifnum\value{enumi} > 999 \setlength\hskip{-0.14in}\fi
}

% Create new environments for listings
\setlist[enumerate,1]{
  wide,
  align=left,
  topsep = 0in,
  parsep = 0.24in,
  partopsep = 0in,
  itemsep = 0in,
  labelindent = 0in,
  labelsep = 0.36in,
  before=\let\item\MyItem
}
\setlist[enumerate,2]{
  leftmargin=1in,
  rightmargin=0in,
  labelindent=*
}

\begin{document}

   \begin{enumerate}
      \item This template is made for A4 page size. I will try to extend
      this point into more than two lines.

      \item In this template,

      \begin{enumerate}
          \item This template is made for A4 page size. I will try to extend
          this point into more than two lines.
          \item Left margin is $\mathrm{1.5}$ in.
          \item Right margin is $\mathrm{0.7}$ in.
      \end{enumerate}

      \item This is another enumerated point.

      \begin{enumerate}
          \item This is another enumerated point.
          \item This template is made for A4 page size. I will try to extend
          this point into more than two lines.
          \item This is another enumerated point.
      \end{enumerate}

      \item This is another enumerated point.

    \end{enumerate}

\end{document}

生成：

在此处输入图片描述

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