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如何将“\newcommand*”包装到多段落环境中？

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如何将“\newcommand*”包装到多段落环境中？

就像声明的那样别处，通常建议使用星号\newcommand*而不是，\newcommand因为这有助于}通过禁止其参数中的段落来查找缺失的 s。然而，时不时地，人们希望让这样的命令，例如\pdfmarkupcomment，作用于多个段落（部分）+。有没有办法定义一个环境（比如，pdfmarkedup或者环境可以共享命令的名称？），以便它自动将每个段落包装到所需的单段命令中？即

\documentclass{article}
\usepackage{pdfcomment}
\newenvironment{pdfmarkedup}{%
    % insert magic here
}

\begin{document}
\begin{pdfmarkedup}[markup=Highlight]{no comment}
I'm a little paragraph short and stout.
Here is my last stop.

Here is my successor.
When I get all wrapped up,
Hear me shout!

Just write me down
and pour me out.

I'm a clever environment, yes it's true.
Here's an example of what I can do.
I can wrap my paragraphs each into a command.
Just put me around them and pour me out.
\end{pdfmarkedup}

\end{document}

应该相当于

\documentclass{article}
\usepackage{pdfcomment}
\begin{document}

\pdfmarkupcomment[markup=Highlight]{
I'm a little paragraph short and stout.
Here is my last stop.
}{No comment}

\pdfmarkupcomment[markup=Highlight]{
Here is my successor.
When I get all wrapped up,
Hear me shout!
}{No comment}

\pdfmarkupcomment[markup=Highlight]{
Just write me down
and pour me out.
}{No comment}

\pdfmarkupcomment[markup=Highlight]{
I'm a clever environment, yes it's true.
Here's an example of what I can do.
I can wrap my paragraphs each into a command.
Just put me around them and pour me out.
}{No comment}

\end{document}

+在我的例子中\pdfmarkupcomment，在每个段落中重复相同的评论是可以接受的。

答案1

expl3结合使用以下力量environ：

\documentclass{article}
\usepackage{environ,xparse}

\usepackage{pdfcomment}

\ExplSyntaxOn
\NewEnviron{pdfmarkedup}[2][]
 {
  \kienzler_pdfmarkedup:Vnn \BODY { #1 } { #2 }
 }

\seq_new:N \l_kienzler_pdfmarkedup_pars_seq
\cs_new_protected:Nn \kienzler_pdfmarkedup:nnn
 {
  \seq_set_split:Nnn \l_kienzler_pdfmarkedup_pars_seq { \par } { #1 }
  \seq_map_inline:Nn \l_kienzler_pdfmarkedup_pars_seq
   {
    \tl_if_blank:nF { ##1 }
     {
      \pdfmarkupcomment[#2]{##1}{#3} \par
     }
   }
 }
\cs_generate_variant:Nn \kienzler_pdfmarkedup:nnn { V }
\ExplSyntaxOff


\begin{document}
\begin{pdfmarkedup}[markup=Highlight]{no comment}
I'm a little paragraph short and stout.
Here is my last stop.

Here is my successor.
When I get all wrapped up,
Hear me shout!

Just write me down
and pour me out.

I'm a clever environment, yes it's true.
Here's an example of what I can do.
I can wrap my paragraphs each into a command.
Just put me around them and pour me out.
\end{pdfmarkedup}

\end{document}

我们用 吸收环境内容environ，然后将其拆分为以 token 为单位的序列\par。序列中的每个项目都传递给\pdfmarkupcomment。

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