如果之前有换行符，如何右对齐？

Question

考虑一下这个 MWE

\documentclass[a4paper]{article}

\usepackage[top=1in, bottom=1.25in, left=1.25in, right=1.25in]{geometry}

\usepackage{enumerate}
\usepackage[ngerman]{babel}
\usepackage{ifthen} % for conditionals in newcommand
\usepackage[utf8]{inputenc}

\newcommand{\point}[1]{\ifthenelse{\equal{#1}{1}}{\hfill \mbox{(\emph{#1 point})}}{\hfill \mbox{(\emph{#1 points})}}} % command to display points 

\begin{document}
\begin{enumerate}[(a)]
  \item This is how it is mostly the case. \point{1}
  \item Here, I want the \textit{(2 points)} to be aligned on the right side. This sometimes happens\ldots \point{2}
\end{enumerate}

\end{document}

给出以下输出（红色箭头/框除外）：

我希望“(2 points)”在右侧对齐，也就是红框所在的位置。但是，我不知道如何修改命令\point以实现我想要的效果。简单地将 包括到\hfill中\mbox会产生与上面相同的输出。

那么，我该如何修改\point命令，以便始终将文本对齐在右侧 - 即使在“（x 点）”部分之前有一个换行符？

Answer 1

这会向右移动与标签大小相等的量并放置一个\mbox{}\allowbreak（可能强制换行）。然后它会向左移动该量，并\hfill在标签之前发出一个。

\documentclass[a4paper]{article}

\usepackage[top=1in, bottom=1.25in, left=1.25in, right=1.25in]{geometry}

\usepackage{enumerate}
\usepackage[ngerman]{babel}
\usepackage{ifthen} % for conditionals in newcommand
\usepackage[utf8]{inputenc}
\newcommand{\point}[1]{\ifthenelse{\equal{#1}{1}}%
  {\def\tmpsfx{}}{\def\tmpsfx{s}}%
  \setbox0=\hbox{(\emph{#1 point\tmpsfx})}%
  \hspace{\wd0}\mbox{}\allowbreak\hspace{-\wd0}\hfill\box0%
  } % command to display points 

\begin{document}
\begin{enumerate}[(a)]
  \item This is how it is mostly the case. \point{1}
  \item Here, I want the \textit{(2 points)} to be aligned on the right side. This sometimes happens\ldots \point{2}
\end{enumerate}

\end{document}

Answer 2

感谢@UlrikeFischer 的回答另一个问题，我能够根据\quelle上面链接中提到的答案中提供的命令解决问题：

\newcommand\toRight[1]{{%
      \unskip\nobreak\hfil\penalty50
      \hskip2em\hbox{}\nobreak\hfil #1%
      \parfillskip=0pt \finalhyphendemerits=0 \par}}

\newcommand{\point}[1]{\ifthenelse{\equal{#1}{1}}{\toRight{\mbox{(\emph{#1 point})}}}{\toRight{\mbox{(\emph{#1 points})}}}} % command to display points

使用此功能可产生所需的输出：