文档边缘的表格单元格中出现换行符

Question

为了允许在表格单元格内换行，我使用\parbox。但是当我想要换行的单元格位于表格的最后一列时，最好的办法是在文档的边缘处换行。我如何指定 的宽度，以便它\parbox自动执行此操作，而不需要每次都根据我所在的表格手动指定它？

\documentclass{article}
\newcommand{\breakcell}[1]{\parbox[t]{22em}{#1}}

\begin{document}
\hrule
    \begin{tabular}{ll}
        A short 1st column & \breakcell{A considerably longer second column where I write way too much stuff}\\
        A short 1st column & Blah blah\\
    \end{tabular}

    \begin{tabular}{ll}
        A considerably longer first column & \breakcell{A considerably longer second column where I write way too much stuff}\\
        A considerably longer first column & Blah blah\\
    \end{tabular}
\hrule
\end{document}

Answer 1

随着表格型包，可以这样指定表格的宽度，然后使用X来告诉它哪一列应该可以跨多行拆分。如果将表格的宽度设置为\linewidth(或\textwidth)，最后一列将自动在文档的边缘拆分。但是，为了使其正常工作，必须在环境前面加上\begin{tabularx}命令\noindent，或者从表格的宽度中减去缩进的宽度：

\documentclass{article}
\usepackage{tabularx}

\begin{document}
\hrule
    \noindent \begin{tabularx}{\linewidth}{lX}
        A short 1st column & A considerably longer second column where I write way too much stuff\\
        A short 1st column & Blah blah\\
    \end{tabularx}

\newlength{\mylength}
\setlength{\mylength}{\linewidth}
\addtolength{\mylength}{-\parindent}

    \begin{tabularx}{\mylength}{lX}
        A considerably longer first column & A considerably longer second column where I write way too much stuff\\
        A considerably longer first column & Blah blah\\
    \end{tabularx}
\hrule
\end{document}

Answer 2

您能用得起吗linegoal？

\documentclass{article}
\usepackage{linegoal}

\newcommand{\breakcell}[1]{\parbox[t]{\linegoal}{#1}}

\begin{document}
\hrule
    \begin{tabular}{ll}
        A short 1st column & \breakcell{A considerably longer second column where I write way too much stuff}\\
        A short 1st column & Blah blah\\
    \end{tabular}

    \begin{tabular}{ll}
        A considerably longer first column & \breakcell{A considerably longer second column where I write way too much stuff}\\
        A considerably longer first column & Blah blah\\
    \end{tabular}
\hrule
\end{document}