\parbox 中的平衡文本换行

Question

如果文本必须换行，是否有可能平衡行数\parbox？

\documentclass[a4paper]{scrartcl}
\usepackage{polyglossia}
\setmainlanguage{english}
\begin{document}
    \parbox{35mm}{\centering This is text}

    \parbox{35mm}{\centering This is some more text}
\end{document}

输出：

    This is text

  This is some more
        Text

虽然我希望

    This is text

    This is some
      more Text

Answer 1

使用 ragged2e 和\Centering：

\documentclass[a4paper]{scrartcl}
\usepackage{polyglossia}
\usepackage{ragged2e}
\setmainlanguage{english}
\begin{document}
\parbox{35mm}{\centering This is some more text}
\parbox{35mm}{\Centering This is some more text}
\end{document}

Answer 2

虽然这很粗糙而且缓慢，但是它可以完成您想要的操作。

\documentclass{article}
\parskip=3ex

\newcommand{\centerbox}[2]% #1 = max width, #2 = contents
{\begingroup% save registers
  \dimendef\height=0
  \dimendef\width=1
  \dimendef\test=2
  \settoheight{\height}{\parbox{#1}{\centering #2}}%
  \width=#1\relax
  \loop
    \advance\width by -1em
    \settoheight{\test}{\parbox{\width}{\centering #2}}%
    \ifdim\test=\height\repeat
  \advance\width by 1em
  \makebox[#1][c]{\parbox{\width}{\centering #2}}%
\endgroup}

\begin{document}
\parbox{30mm}{\centering This is some more text}

\centerbox{30mm}{This is some more text}
\end{document}