将文本以（自定义）符号为中心并带有换行符

Question

我想让两个文本列以一个符号为中心对齐。以下代码接近解决方案，但仍然存在换行问题：

\newcommand{\correspondsto}{\overset{\scriptscriptstyle\wedge}{=}}
\begin{document}

    \begin{equation*}
    \begin{array}{@{} @{\qquad} r @{} >{{}}l @{}}
      \text{this is the first part and could be longer than one line}     &\correspondsto \text{the same holds for the second cell} \\
      \text{Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, }         &\correspondsto \text{ Lorem Ipsum has been the industry} \\
    \end{array}
    \end{equation*}

\end{document}

得出的结果是：

虽然此尝试适用于短文本，但不适用于较长的文本。我需要换行符（可能手动），但居中符号仍应位于形成块的行之间，即：不行，因为对应符号应位于第二行和第三行之间，因为它们形成了一个“块”。有没有办法在 latex 中做到这一点？

Answer 1

这是我的建议tabularx：

\documentclass{article}
\usepackage{amsmath}
\usepackage{tabularx}
\usepackage{booktabs}

\newcommand{\correspondsto}{$\overset{\scriptscriptstyle\wedge}{=}$}

\renewcommand\tabularxcolumn[1]{m{#1}}
\begin{document}


    \begin{tabularx}{\textwidth}{@{} >{\raggedleft\arraybackslash}X@{\quad\correspondsto\quad} >{\raggedright\arraybackslash}X @{}}
     this is the first part and could be longer than one line     & the same holds for the second cell \\ \addlinespace
      Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,          &  Lorem Ipsum has been the industry \\
    \end{tabularx}

    \bigskip

        \begin{tabularx}{\textwidth}{@{} >{\raggedleft\arraybackslash\hsize=1.25\hsize}X@{\quad\correspondsto\quad}>{\raggedright\arraybackslash\hsize=0.75\hsize}X @{}}
     this is the first part and could be longer than one line     & the same holds for the second cell \\ \addlinespace
      Lorem Ipsum has been the industry's standard dummy text ever since the 1500s,          &  Lorem Ipsum has been the industry \\
    \end{tabularx}


\end{document}

Answer 2

类似这样？我还将楔形改为\widehat。如果您愿意，可以替换定义。

\documentclass{article}
\usepackage{amsmath}

%\newcommand{\correspondsto}{\overset{\scriptscriptstyle\wedge}{=}}
\newcommand{\correspondsto}{\mathrel{\widehat{=}}}

\newcommand{\correspondence}[2]{%
  \parbox{0.4\displaywidth}{\raggedleft\strut\ignorespaces#1\unskip\strut}%
  &\correspondsto
  \parbox{0.4\displaywidth}{\raggedright\strut\ignorespaces#2\unskip\strut}%
}

\begin{document}

\begin{align*}
\correspondence{Short text}{Short text} \\
\correspondence{
  this is the first part and could be longer than one line
}{
  the same holds for the second cell
} \\
\correspondence{
  Lorem Ipsum has been the industry's standard 
  dummy text ever since the 1500s,
}{
  Lorem Ipsum has been the industry
} \\
\correspondence{
  Lorem Ipsum has been the industry's standard 
  dummy text ever since the 1500s,
}{
  Lorem Ipsum
}
\end{align*}

\end{document}