隐藏带有彩色单元格的列

Question

我想使用这个答案隐藏表格中的某些列。表格在整个文档中多次出现，并且始终隐藏不同的列。使用该colortbl包突出显示了一些单元格，这似乎会导致问题：

似乎彩色单元格以某种方式从隐藏单元格“泄漏”到后续单元格中。我该怎么做才能防止这种情况发生？我希望隐藏单元格的背景颜色完全消失 - 我不希望它甚至部分出现在后续单元格中。

梅威瑟：

\documentclass{article}
\usepackage{array}
\usepackage{colortbl}

\newcommand{\gc}{\cellcolor[gray]{.7}}
\newcolumntype{H}{>{\setbox0=\hbox\bgroup}c<{\egroup}@{}}

\newcommand{\tablebody}{%
      foo &     bar & \gc boo &     baz &     faa \\
      bar & \gc boo &     baz & \gc faa &     foo \\
  \gc boo &     baz &     faa &     foo & \gc bar \\
      baz & \gc faa &     foo & \gc bar &     boo \\
      faa &     foo & \gc bar &     boo &     baz %
}

\begin{document}

\section*{all columns visible}

\begin{tabular}{ccccc}
  \tablebody
\end{tabular}

\section*{center column hidden}

\begin{tabular}{ccHcc}
  \tablebody
\end{tabular}

\section*{middle columns hidden}

\begin{tabular}{cHcHc}
  \tablebody
\end{tabular}

\section*{outer columns hidden}

\begin{tabular}{HcccH}
  \tablebody
\end{tabular}

\end{document}

Answer 1

\documentclass{article}
\usepackage{array}
\usepackage{colortbl}
\makeatletter
\def\zz{\aftergroup\zzz}
\def\zzz\begingroup#1\endgroup
    {\global\let\CT@do@color\relax\global\let\CT@cell@color\relax}
\newcommand{\gc}{\cellcolor[gray]{.7}}
\newcolumntype{H}
   {>{\setbox0=\hbox\bgroup\bgroup}c<{\egroup\egroup\aftergroup\aftergroup\aftergroup\zz}@{}}

\newcommand{\tablebody}{%
      foo &     bar & \gc boo &     baz &     faa \\
      bar & \gc boo &     baz & \gc faa &     foo \\
  \gc boo &     baz &     faa &     foo & \gc bar \\
      baz & \gc faa &     foo & \gc bar &     boo \\
      faa &     foo & \gc bar &     boo &     baz %
}

\begin{document}

\section*{all columns visible}

\begin{tabular}{ccccc}
  \tablebody
\end{tabular}

\section*{center column hidden}

\begin{tabular}{ccHcc}
  \tablebody
\end{tabular}

\section*{middle columns hidden}

\begin{tabular}{cHcHc}
  \tablebody
\end{tabular}

\section*{outer columns hidden}

\begin{tabular}{HcccH}
  \tablebody
\end{tabular}

\end{document}

Answer 2

我希望这比我之前的尝试有所改进。为了消除残留颜色，我不得不设置\tabcolsep为0pt。然后我@{\extracolsep{1ex}}又添加了列间隙。唯一的缺点是 extracolsep 不会在单元格中着色，但这可能是一个可行的解决方案。

\documentclass{article}
\usepackage{array}
\usepackage{colortbl}
\let\svtabcolsep\tabcolsep
\setlength\tabcolsep{0pt}
\newcommand{\gc}{\cellcolor[gray]{.7}}
\newcolumntype{H}{>{\setbox0=\hbox\bgroup}c<{\egroup}@{}}

\newcommand{\tablebody}{%
      foo &     bar & \gc boo &     baz &     faa \\
      bar & \gc boo &     baz & \gc faa-extra-extra long &     foo \\
  \gc boo &     baz &     faa &     foo & \gc bar \\
      baz & \gc faa &     foo & \gc bar &     boo \\
      faa &     foo-extra long & \gc bar &     boo &     baz %
}

\begin{document}

\section*{all columns visible}

\begin{tabular}{@{\extracolsep{1ex}}ccccc}
  \tablebody
\end{tabular}

\section*{center column hidden}

\begin{tabular}{@{\extracolsep{1ex}}ccHcc}
  \tablebody
\end{tabular}

\section*{middle columns hidden}

\begin{tabular}{@{\extracolsep{1ex}}cHcHc}
  \tablebody
\end{tabular}

\section*{outer columns hidden}

\begin{tabular}{@{\extracolsep{1ex}}HcccH}
  \tablebody
\end{tabular}

\end{document}