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字符替换：将 \llap{(} 和 \llap{-} 合并为 \llap{(-}

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字符替换：将 \llap{(} 和 \llap{-} 合并为 \llap{(-}

这是对问题的后续跟进siunitx：指定自定义命令作为输入符号. 其思想是(，)和-被包装到\llap或中\rlap，这样当通过设置表格时它们就不会占用任何空间siunitx。

问题是，当我在一列中有：时它不起作用，(-因为它被替换为\llap{(}\llap{-}，导致左括号和减号重叠。显然，这需要变成\llap{(-}。但我不知道如何在 David Carlisle 开发的当前框架中实现这一点，如下面的 MWE 所示。

\documentclass[11pt]{scrartcl}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenx}

\usepackage{lmodern}
\usepackage[euler-digits]{eulervm}

\newcommand{\sym}[1]{\rlap{#1}}

\usepackage{siunitx}
    \sisetup{
        detect-mode,
        group-digits            = false,
        input-symbols           = ( ) [ ] - +,
        table-align-text-post   = false,
        input-signs             = ,
        }   

% Character substitution that prints brackets and the minus symbol in text mode. Thanks to David Carlisle
\def\yyy{%
  \bgroup\uccode`\~\expandafter`\string-%
  \uppercase{\egroup\edef~{\noexpand\text{\llap{\textendash}\relax}}}%
  \mathcode\expandafter`\string-"8000 }

\def\xxxl#1{%
\bgroup\uccode`\~\expandafter`\string#1%
\uppercase{\egroup\edef~{\noexpand\text{\noexpand\llap{\string#1}}}}%
\mathcode\expandafter`\string#1"8000 }

\def\xxxr#1{%
\bgroup\uccode`\~\expandafter`\string#1%
\uppercase{\egroup\edef~{\noexpand\text{\noexpand\rlap{\string#1}}}}%
\mathcode\expandafter`\string#1"8000 }

\def\textsymbols{\xxxl[\xxxr]\xxxl(\xxxr)\yyy}


 \begin{document}

\begin{table}\centering
\textsymbols
\begin{tabular}{l*{3}{S[table-format=1.2,table-column-width=20mm]}}
Variable 1 & 1.85\sym{***} & 0.92\sym{***} & 1.11\sym{***} \\
           & (-0.34)       & (0.24)        & (0.14)        \\
Variable 2 & 0.07\sym{***} & 0.07\sym{***} & 0.07\sym{***} \\
           & (-0.01)       & (0.02)        & (0.01)        \\
\end{tabular}
\end{table}

\end{document}

在此处输入图片描述

答案1

您可以进行(前瞻性并处理后续操作-

（再次修正代码和图像）

在此处输入图片描述

\documentclass[11pt]{scrartcl}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenx}

\usepackage{lmodern}
\usepackage[euler-digits]{eulervm}

\newcommand{\sym}[1]{\rlap{#1}}

\usepackage{siunitx}
    \sisetup{
        detect-mode,
        group-digits            = false,
        input-symbols           = ( ) [ ] - +,
        table-align-text-post   = false,
        input-signs             = ,
        }   

% Character substitution that prints brackets and the minus symbol in text mode. Thanks to David Carlisle

\def\yyy{%
  \bgroup\uccode`\~\expandafter`\string-%
  \uppercase{\egroup\edef~{\noexpand\text{\llap{\textendash}\relax}}}%
  \mathcode\expandafter`\string-"8000 }

\makeatletter

\def\xxxl#1{%
\bgroup\uccode`\~\expandafter`\string#1%
\uppercase{\egroup\edef~##1{##1\edef\noexpand\thisxxx{\string#1}\futurelet\noexpand\tmp\noexpand\zzz}}%
\mathcode\expandafter`\string#1"8000 }


\def\zzzx#1#2{\def\tmp{#2}%
\ifx\tmp\zzzm
\text{\llap{\thisxxx$\mathchar"2200$}}%
\else
#1{#2}%
\fi}


\def\zzzm{-}
\def\zzz{\ifx\tmp\ensuremath
           \expandafter\zzzx
          \else
\text{\llap{\thisxxx}}%
          \fi}

%\noexpand\@ifnextchar\noexpand-\noexpand\xxxlm{\noexpand\text{\noexpand\llap{\string#1}
\makeatother

\def\xxxr#1{%
\bgroup\uccode`\~\expandafter`\string#1%
\uppercase{\egroup\edef~{\noexpand\text{\noexpand\rlap{\string#1}}}}%
\mathcode\expandafter`\string#1"8000 }

\def\textsymbols{\xxxl[\xxxr]\xxxl(\xxxr)\yyy}


 \begin{document}

\begin{table}\centering
\textsymbols
\begin{tabular}{l*{3}{S[table-format=1.2,table-column-width=20mm]}}
Variable 1 & 1.85\sym{***} & 0.92\sym{***} & 1.11\sym{***} \\
           & (-0.34)       & (0.24)        & (0.14)        \\
Variable 2 & 0.07\sym{***} & 0.07\sym{***} & 0.07\sym{***} \\
           & (-0.01)       & (0.02)        & (0.01)        \\
\end{tabular}
\end{table}

\end{document}

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