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使用 ulem/soul 和 newcommand 删除多行

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使用 ulem/soul 和 newcommand 删除多行

我在使用 ulem 和 soul 在新命令中删除多行文本时遇到了困难。

以下答案没有帮助：

https://tex.stackexchange.com/a/74910/265141 % 带连字符的多行单词 https://tex.stackexchange.com/a/430295/265141% 添加\expandafter

\documentclass{article}
\usepackage{xcolor}
\usepackage[normalem]{ulem}
\usepackage{soul}

\newcommand{\HW}[1]{\textcolor{green}{(HW) #1} }
\newcommand{\WH}[1]{\textcolor{red}{(WH) #1} }

\begin{document}

MWE

% This is ulem
\HW{\sout{\WH{Hello, World! This is a long paragraph so we get multiple lines. It seems this can be difficult to handle by packages and I'm not sure why.}} Do you know?}

Thanks!

% This is soul. It raises an error of unmatched brackets
\WH{\st{\HW{World, Hello! This is a long paragraph so we get multiple lines. It seems this can be difficult to handle by packages and I'm not sure why.}} Do you know?} 

% The below should not print red
Thanks!

\end{document}

MWE 的输出显示出不良行为。

答案1

不幸的是，命令\st必须看到文本直接地（不隐藏在任何宏后面）才能工作。任何都\textcolor必须在外面。

因此，一个选择是写

\WH{\textcolor{green}{\st{World, Hello! This is a long paragraph so we get multiple lines. It seems this can be difficult to handle by packages and I'm not sure why.}} Do you know?}

\st扩展宏来处理更多特殊情况并非不可能，但实现完全通用则非常困难。

或者使用lua-ul包，它使用 LuaLaTeX 的一些特殊能力来实现功能。

\documentclass{article}
\usepackage{xcolor}
\usepackage{lua-ul}

\newcommand{\HW}[1]{\textcolor{green}{(HW) #1} }
\newcommand{\WH}[1]{\textcolor{red}{(WH) #1} }

\begin{document}

MWE

\WH{\strikeThrough{\HW{World, Hello! This is a long paragraph so we get multiple lines. It seems this can be difficult to handle by packages and I'm not sure why.}} Do you know?} 

Thanks!

\end{document}

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