在多列环境中具有自动换行功能的可变宽度表

Question

这并不是万无一失的。它不能分页（当然，tabular原贴作者的方法也不能）。此外，还有其他一些邪恶的可能性，即最后一个括号的位置取决于顶部文本或底部文本是否最长（如中设置的那样）\hbox，这并没有考虑到实际的齐平对齐\parbox可能会在未被发现的情况下逆转该结论。

最后，...必须手动在空白行上添加，使用\\...\\...等等。

编辑以使用\linewidth而不是\textwidth，以便在multicols环境中正常工作。

\documentclass{article}
\usepackage{stackengine,tabto,multicol}
\newlength\parboxdepth
\newcommand\variate[2]{\bgroup%
  \setbox0=\hbox{#1}%
  \setbox2=\hbox{#2}%
  \ifdim\wd0>\wd2\relax%
    \let\endbraceB\relax%
  \else%
    \let\endbraceT\relax%
  \fi
  $\Bigl\{$\tabto*{0pt}\edef\myindent{\TabPrevPos}\renewcommand\stacktype{L}%
    \setbox0=\hbox{\parbox[t]{\linewidth}{\baselineskip=2\baselineskip\relax%
      \tabto{\myindent}#2\endbraceB}}%
    \setbox2=\hbox{\parbox[t]{\linewidth}{\baselineskip=2\baselineskip\relax%
      \tabto{\myindent}#1\endbraceT}}%
    \ifdim\dp2>\dp0\relax\parboxdepth=\dp2\relax\else\parboxdepth=\dp0\relax\fi%
  \raisebox{-.5\dimexpr\Lstackgap\relax}{\stackon{\copy0}{\copy2}}%
  \ifdim\parboxdepth>\baselineskip\relax\vspace{-.66\baselineskip}\else%
    \vspace{-\baselineskip}\fi\vspace{-\parskip}%
  \par%
  \leavevmode\tabto{\myfinalindent}%
  \rule[-\baselineskip]{0pt}{2\baselineskip}%
\egroup}
\def\endbraceT{\raisebox{-.25\dimexpr\Lstackgap}{$\Bigr\}$}%
  \tabto*{0pt}\xdef\myfinalindent{\TabPrevPos}}
\def\endbraceB{\raisebox{+.25\dimexpr\Lstackgap}{$\Bigr\}$}%
  \tabto*{0pt}\xdef\myfinalindent{\TabPrevPos}}
%\textwidth 3.5in\relax% FOR NON-MULTICOLS TEST
\setstackgap{L}{.8\baselineskip}% \variate BASELINE SKIP; CAN BE VARIED TO SUIT
\begin{document}
\begin{multicols}{2}
Depending on \variate{Thing A}{Thing B} I want to end my statement on
  \variate{Conclusion C}{Conclusion D}. 
Using \variate{tabular}{tabularx} gives me \variate{no line breaks for
  statements exceeding the multicols column-width}{automated line-breaks\\...}
  but \variate{enables variable column-width.\\...}{uses whole column width
  for short statements.}
All in all, \variate{I want my cases to start in line, break like this at the
  end of the multicols-column and end at a variable length in-line}{...\\...
  \\...}.
\end{multicols}
\end{document}

在某个multicols环境中，如果列中断发生在参数的中间，仍然可能存在问题\variate，如下所示：

注释掉multicols，并\textwidth设置为3.5in。

Answer 1