如何使下面的\NewDocumentEnvironment第三个参数逐字可选（可选，转义特殊的 LaTeX 字符）？
以下是自定义样式的 3 种方法：（请记住，以下代码不适用于[mmoo]，[mmvo]您需要转义每个字符才能成功呈现）
\documentclass[11pt,letterpaper]{article} % Use the custom resume.cls style
\usepackage[left=0.4 in,top=0.4in,right=0.4 in,bottom=0.4in]{geometry} % Document margins
\usepackage[parfill]{parskip} % Remove paragraph indentation
\usepackage{array} % Required for boldface (\bf and \bfseries) tabular columns
\usepackage{ifthen} % Required for ifthenelse statements
\usepackage{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=blue,
filecolor=magenta,
urlcolor=blue,
}
\usepackage{xparse} % For Projects Formatting
\pagestyle{empty} % Suppress page numbers
%----------------------------------------------------------------------------------------
% SECTION FORMATTING
%----------------------------------------------------------------------------------------
% Defines the rSection environment for the large sections within the CV
\newenvironment{rSection}[1]{ % 1 input argument - section name
\sectionskip
\MakeUppercase{
%\small %I personally wrote it for testing purposes
{\bf #1}} % Section title
\sectionlineskip
\hrule % Horizontal line
\begin{list}{}{ % List for each individual item in the section
\setlength{\leftmargin}{0em} % Margin within the section
%\small %I personally wrote it for testing purposes
}
\item[]
}{
\end{list}
}
%----------------------------------------------------------------------------------------
% Projects FORMATTING
%----------------------------------------------------------------------------------------
\NewDocumentEnvironment{rProjects}{mmoo}{ % 2 mandatory arguments and 2 optional argument, project name, project description, project link, link name
\textbf{#1}. {#2} % Bold project name then description
\IfValueT{#3}{
\ifthenelse{\equal{#4}{}} % Project Link & Name
{\hfill \href{#3}{GitHub Link}}
{\hfill \href{#3}{#4}}
}\smallskip
}{}
%----------------------------------------------------------------------------------------
% Itemize FORMATTING
%----------------------------------------------------------------------------------------
\newenvironment{rItemize}{\begin{itemize}
\raggedright
\itemsep 0pt {}
%\small
%\parskip 0pt {}
}
{\end{itemize}}
%----------------------------------------------------------------------------------------
% The below commands define the whitespace after certain things in the document - they can be \smallskip, \medskip or \bigskip
\def\sectionlineskip{\medskip} % The space above the horizontal line for each section
\def\sectionskip{\medskip} % The space after the heading section
\begin{document}
\begin{rSection}{PROJECTS}
\begin{rProjects}{Project name}{description}
\begin{rItemize}
\item Achieved X\% growth for XYZ using A, B, and C skills.
\item Led XYZ which led to X\% of improvement in ABC.
\item Developed XYZ that did A, B, and C using X, Y, and Z.
\end{rItemize}
\end{rProjects}
\begin{rProjects}{Project name}{description.}[https://github.com/OmarShawky1/CS-Roadmap\#projects][]
\begin{rItemize}
\item Achieved X\% growth for XYZ using A, B, and C skills.
\item Led XYZ which led to X\% of improvement in ABC.
\item Developed XYZ that did A, B, and C using X, Y, and Z.
\end{rItemize}
\end{rProjects}
\begin{rProjects}{Project name}{description}[https://github.com/OmarShawky1/CS-Roadmap\#projects][Project Link]
\begin{rItemize}
\item Achieved X\% growth for XYZ using A, B, and C skills.
\item Led XYZ which led to X\% of improvement in ABC.
\item Developed XYZ that did A, B, and C using X, Y, and Z.
\end{rItemize}
\end{rProjects}
\end{rSection}
\end{document}
这是来自这个问题。
答案1
在这里，我使用tokcycle包将参数调整#3为更可用的形式。就目前而言，它可以处理#、\和$字符。可能需要对进行更改以\Characterdirective处理其他特殊字符。（如果您告诉我需要什么，我可以添加/测试它们）。
\documentclass[11pt,letterpaper]{article} % Use the custom resume.cls style
\usepackage[T1]{fontenc}
\usepackage[left=0.4 in,top=0.4in,right=0.4 in,bottom=0.4in]{geometry} % Document margins
\usepackage[parfill]{parskip} % Remove paragraph indentation
\usepackage{array} % Required for boldface (\bf and \bfseries) tabular columns
\usepackage{ifthen} % Required for ifthenelse statements
\usepackage{tokcycle}
%\Characterdirective{...}% may be needed for other special characters
\Macrodirective{\addcytoks[1]{\string#1}}% needed for backslash
\usepackage{hyperref}
\hypersetup{
colorlinks=true,
linkcolor=blue,
filecolor=magenta,
urlcolor=blue,
}
\usepackage{xparse} % For Projects Formatting
\pagestyle{empty} % Suppress page numbers
%----------------------------------------------------------------------------------------
% SECTION FORMATTING
%----------------------------------------------------------------------------------------
% Defines the rSection environment for the large sections within the CV
\newenvironment{rSection}[1]{ % 1 input argument - section name
\sectionskip
\MakeUppercase{
%\small %I personally wrote it for testing purposes
{\bf #1}} % Section title
\sectionlineskip
\hrule % Horizontal line
\begin{list}{}{ % List for each individual item in the section
\setlength{\leftmargin}{0em} % Margin within the section
%\small %I personally wrote it for testing purposes
}
\item[]
}{
\end{list}
}
%----------------------------------------------------------------------------------------
% Projects FORMATTING
%----------------------------------------------------------------------------------------
\NewDocumentEnvironment{rProjects}{mmoo}{ % 2 mandatory arguments and 2 optional argument,
%project name, project description, project link, link name
\textbf{#1}. {#2} % Bold project name then description
\IfValueT{#3}{%
\tokcyclexpress{#3}%
\ifthenelse{\equal{#4}{}} % Project Link & Name
{\hfill \expandafter\href\expandafter{\the\cytoks}{GitHub Link}}
{\hfill \expandafter\href\expandafter{\the\cytoks}{#4}}
}\smallskip
}{}
%----------------------------------------------------------------------------------------
% Itemize FORMATTING
%----------------------------------------------------------------------------------------
\newenvironment{rItemize}{\begin{itemize}
\raggedright
\itemsep 0pt {}
%\small
%\parskip 0pt {}
}
{\end{itemize}}
%----------------------------------------------------------------------------------------
% The below commands define the whitespace after certain things in the document - they can
% be \smallskip, \medskip or \bigskip
\def\sectionlineskip{\medskip} % The space above the horizontal line for each section
\def\sectionskip{\medskip} % The space after the heading section
\begin{document}
\begin{rSection}{PROJECTS}
\begin{rProjects}{Project name}{description}
\begin{rItemize}
\item Achieved X\% growth for XYZ using A, B, and C skills.
\item Led XYZ which led to X\% of improvement in ABC.
\item Developed XYZ that did A, B, and C using X, Y, and Z.
\end{rItemize}
\end{rProjects}
\begin{rProjects}{Project name}{description.}
[https://github.com/OmarShawky1/CS-Roadmap#projects\subname$][]
\begin{rItemize}
\item Achieved X\% growth for XYZ using A, B, and C skills.
\item Led XYZ which led to X\% of improvement in ABC.
\item Developed XYZ that did A, B, and C using X, Y, and Z.
\end{rItemize}
\end{rProjects}
\begin{rProjects}{Project name}{description}
[https://github.com/OmarShawky1/CS-Roadmap#projects][Project Link]
\begin{rItemize}
\item Achieved X\% growth for XYZ using A, B, and C skills.
\item Led XYZ which led to X\% of improvement in ABC.
\item Developed XYZ that did A, B, and C using X, Y, and Z.
\end{rItemize}
\end{rProjects}
\end{rSection}
\end{document}
