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在投影机列表的第二级中，LTR 文本应该是 RTL（从右到左）

tag-icon • tag-icon beamer lists right-to-left bidi
在投影机列表的第二级中，LTR 文本应该是 RTL（从右到左）

我有一个在 Beamer 中从右到左编写列表的例子

\documentclass{beamer}
\usefonttheme{serif}
\usepackage{bidi}

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize subitem}[circle]

\begin{document}

\begin{frame}{Frame title}

\setRTL    
\raggedleft

  \begin{enumerate}\raggedleft
  \item Data may be missing
    \begin{itemize}\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space
   this text from right to left   % <-- problem here 
 \end{enumerate}
\end{frame}

\end{document}

在此处输入图片描述

第二级列表之后的文本是从左到右，而它应该是从右到左。其他类没有出现此问题

\documentclass{article}
\usepackage{bidi}

\renewcommand{\labelenumi}{\arabic{enumi}\null-}
\begin{document}

\setRTL    

 \begin{enumerate}
  \item Data may be missing
    \begin{itemize}
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize} 
   this text from right to left   
 \end{enumerate}

\end{document}

在此处输入图片描述

答案1

如何使用您已经找到的解决方案，开始一个新段落并撤消额外的空间？

% !TeX TS-program = xelatex
\documentclass{beamer}
\usefonttheme{serif}
\usepackage{bidi}

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize subitem}[circle]

\begin{document}

\begin{frame}{Frame title}

\setRTL    
\raggedleft

  \begin{enumerate}\raggedleft
  \item Data may be missing
    \begin{itemize}\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space
    \vspace{-\baselineskip}

   this text from right to left   % <-- problem here 
 \end{enumerate}
\end{frame}

\end{document}

答案2

解决：

\let\olditemize=\itemize
\def\itemize{\vskip0pt\olditemize}

％ 或者

\AtBeginEnvironment{itemize}{\vskip0pt}

代码：

\documentclass{beamer}
\usefonttheme{serif}
\usepackage{bidi}

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize subitem}[circle]

\let\olditemize=\itemize
\def\itemize{\vskip0pt\olditemize}

% Or

%\AtBeginEnvironment{itemize}{\vskip0pt}

\begin{document}

\begin{frame}{Frame title}

\setRTL    
\raggedleft

  \begin{enumerate}\raggedleft
  \item Data may be missing
    \begin{itemize}\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space
   this text from right to left   % <-- problem here 
 \end{enumerate}
\end{frame}

\end{document}

输出：

在此处输入图片描述

或者：\vskip0pt添加

\makeatletter

\renewcommand{\itemize}[1][]{\vskip0pt% <--- add
  \ifblank{#1}{}{\def\beamer@defaultospec{#1}}%
  \ifnum \@itemdepth >2\relax\@toodeep\else
    \advance\@itemdepth\@ne
    \beamer@computepref\@itemdepth% sets \beameritemnestingprefix
    \usebeamerfont{itemize/enumerate \beameritemnestingprefix body}%
    \usebeamercolor[fg]{itemize/enumerate \beameritemnestingprefix body}%
    \usebeamertemplate{itemize/enumerate \beameritemnestingprefix body begin}%
    \list
      {\usebeamertemplate{itemize \beameritemnestingprefix item}}
      {\def\makelabel##1{%
          {%
            \hss\llap{{%
                \usebeamerfont*{itemize \beameritemnestingprefix item}%
                \usebeamercolor[fg]{itemize \beameritemnestingprefix item}##1}}%
          }%
        }%
      }
  \fi%
  \beamer@cramped%
  \raggedright%
  \beamer@firstlineitemizeunskip%
}

\makeatother

代码：

\documentclass{beamer}

\usefonttheme{serif}
\usepackage[RTLdocument=on]{bidi}
\raggedleft

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize item}[circle]
\setbeamertemplate{itemize subitem}[circle]

\makeatletter

\renewcommand{\itemize}[1][]{\vskip0pt% <--- add
  \ifblank{#1}{}{\def\beamer@defaultospec{#1}}%
  \ifnum \@itemdepth >2\relax\@toodeep\else
    \advance\@itemdepth\@ne
    \beamer@computepref\@itemdepth% sets \beameritemnestingprefix
    \usebeamerfont{itemize/enumerate \beameritemnestingprefix body}%
    \usebeamercolor[fg]{itemize/enumerate \beameritemnestingprefix body}%
    \usebeamertemplate{itemize/enumerate \beameritemnestingprefix body begin}%
    \list
      {\usebeamertemplate{itemize \beameritemnestingprefix item}}
      {\def\makelabel##1{%
          {%
            \hss\llap{{%
                \usebeamerfont*{itemize \beameritemnestingprefix item}%
                \usebeamercolor[fg]{itemize \beameritemnestingprefix item}##1}}%
          }%
        }%
      }
  \fi%
  \beamer@cramped%
  \raggedright%
  \beamer@firstlineitemizeunskip%
}

\makeatother

\begin{document}

\begin{frame}
\begin{enumerate}\raggedleft
  \item Data may be missing
    \begin{itemize}\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space
   this text from right to left   % <-- problem here 
 \end{enumerate}
\end{frame}

\end{document}

类似地，对于列表环境的其余部分，请参见下面的代码。

\documentclass{beamer}

\usefonttheme{serif}
\usepackage[RTLdocument=on]{bidi}
\raggedleft

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize item}[circle]
\setbeamertemplate{itemize subitem}[circle]

%+++++++++++++++++++++++++++++++
\let\olditemize=\itemize
\def\itemize{\vskip0pt\olditemize}

\let\oldenumerate=\enumerate
\def\enumerate{\vskip0pt\oldenumerate}

\let\olddescription=\description
\def\description{\vskip0pt\olddescription}

% or 
%\AtBeginEnvironment{itemize}{\vskip0pt}
%\AtBeginEnvironment{enumerate}{\vskip0pt}
%\AtBeginEnvironment{description}{\vskip0pt}

%++++++++++++++++++++++

\begin{document}

\begin{frame}
\begin{itemize}\raggedleft
\item one two
\end{itemize}
test right
\end{frame}

\begin{frame}
test right
\begin{description}\raggedleft
\item[right]
test right
\end{description}
test right
\end{frame}

\begin{frame}
test right
\begin{itemize}\raggedleft
\item one two
\end{itemize}
test right
\end{frame}

\begin{frame}
test right
\begin{enumerate}\raggedleft
\item one two
\begin{itemize}\raggedleft
\item one two
\end{itemize}
\end{enumerate}
test right
\end{frame}

\begin{frame}
\begin{enumerate}\raggedleft
  \item Data may be missing
    \begin{itemize}\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space
   this text from right to left   % <-- problem here 
 \end{enumerate}
\end{frame}

\end{document}

答案3

我希望我理解你的问题是正确的。我的思路如下：

“问题文本”可以理解为\item，只是省略了“项目符号”（文本前的符号）。

可以按照如下方式完成：

\documentclass{beamer}
\usefonttheme{serif}
\usepackage{bidi}

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize subitem}[circle]

\begin{document}

\begin{frame}{Frame title}

\setRTL    
\raggedleft

  \begin{enumerate}\raggedleft
  \item Data may be missing
    \begin{itemize}\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space 
    \vspace{-.6cm}
   \item[] \hspace{2cm} this text from right to left   % <-- problem was here 
 \end{enumerate}
\end{frame}

\end{document}

（该\hspace{2cm}命令只是为了表明您可以在水平方向上移动文本到任何位置 - 类似于 \vspace{-.6cm}命令。）

答案4

已在版本 37 中解决比迪烟。

\documentclass{beamer}
\usefonttheme{serif}
\usepackage{bidi}

\setbeamertemplate{enumerate item}[circle]
\setbeamertemplate{itemize subitem}[circle]

\begin{document}

\begin{frame}{Frame title}

\setRTL    
%\raggedleft

  \begin{enumerate}%\raggedleft
  \item Data may be missing
    \begin{itemize}%\raggedleft
    \item This makes the problem complete 
    \item even for very restricted cases
    \end{itemize}  % \par solve the problem but add extra space
   this text from right to left   % <-- problem here 
 \end{enumerate}
\end{frame}

\end{document}

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