考试/chickenize：如何将每个单词和图像转换为虚拟的？

Question 1

目前还不完全清楚您所期望的输出的范围和目的，因此我会尝试并等待您真正想要的反馈。

我在这里所做的是用经过example-image拉伸和缩放以占据与原始字母相同的空间的标记替换每个 catcode 11 标记。

至于图形，我重新定义\includegraphics为始终输出通用图像，而不是指定的图像。

请注意，某些类型的文本需要在|分隔符之间进行转义，以避免替换，例如环境名称和宏参数。这取决于用户是否确定。

\documentclass{exam} 
\usepackage{tokcycle,graphicx}
\tokcycleenvironment\chickenize
{\tctestifcatnx a##1{%
  \setbox0=\hbox{##1}%
  \edef\tmp{[width=\the\wd0, height=\the\dimexpr\ht0+\dp0\relax]}%
  \addcytoks[1]{\expandafter\raisebox\expandafter{\expandafter-\the\dp0}}%
  \addcytoks[1]{\expandafter{%
  \expandafter\includegraphics\tmp{example-image-a}}}}{%
  \addcytoks{##1}}}
{\processtoks{##1}}
{\addcytoks{##1}}
{\addcytoks{##1}}

\let\svincludegraphics\includegraphics
\renewcommand\includegraphics[2][]{\svincludegraphics[#1]{example-image-c}}
\begin{document} 
\chickenize
This is a \textit{test} of descenders yig.

Of a substitute font with math: 

|\hspace{.5in}|$y = mx^{2x} + b_{a}$

|\begin{questions}|
    \question[7] 
    some  text  to be replaced by a dummy one \textsuperscript{super} \textsubscript{sub}. 

    |\includegraphics[width=0.25\linewidth]{example-image-a}|%
  \vspace{\baselineskip}

    |\begin{tabular}{c}|
    \hline
    some text\\
    another text\\
    \hline
|\end{tabular}|

|\end{questions}|
\endchickenize
\end{document}

如果您希望输出的是文本而不是缩放的图像，这里我只需将每个 catcode 11 标记替换为x。此外，我将每个数字转换为0，同时保留所有其他标点符号。

\documentclass{exam} 
\usepackage{tokcycle,graphicx}
\tokcycleenvironment\chickenize
{\tctestifcatnx a##1{%
  \addcytoks{x}}{%
  \tctestifnum{`##1>`/}{\tctestifnum{`##1<`:}{%
    \addcytoks{0}}{\addcytoks{##1}}}{\addcytoks{##1}}}}
{\processtoks{##1}}
{\addcytoks{##1}}
{\addcytoks{##1}}

\let\svincludegraphics\includegraphics
\renewcommand\includegraphics[2][]{\svincludegraphics[#1]{example-image-c}}
\begin{document} 
\chickenize
This is a \textit{test} of descenders yig.

Of a substitute font with math: 

|\hspace{.5in}|$y = mx^{2x} + b_{5}$

|\begin{questions}|
    \question[7] 
    some  text  to be replaced by a dummy one \textsuperscript{super} \textsubscript{sub}. 

    |\includegraphics[width=0.25\linewidth]{example-image-a}|%
  \vspace{\baselineskip}

    |\begin{tabular}{c}|
    \hline
    some text\\
    another text\\
    \hline
|\end{tabular}|

|\end{questions}|
\endchickenize
\end{document}

在评论中，原作者对必须转义许多宏参数的想法很不满意。当然，问题是有些宏参数，例如\begin{tabular}，你不想转义\chickenize，而有些，例如，你想转义。最后，用户必须决定如何继续，但下面我提供了一种替代方案，其中所有组内容都明确地从鸡化中省略。因此，例如\textit{test}，人们不再需要转义。\begin{tabular}

但是，可选的宏参数（用分隔）[...]仍必须进行转义（例如\includegraphics下面 MWE 中的选项）。此外，如果希望有选择地将宏参数简化，则必须通过嵌套重新调用它（如的情况\textit{\chickenize test\endchickenize}）。

\documentclass{exam} 
\usepackage{tokcycle,graphicx}
\tokcycleenvironment\chickenize
{\tctestifcatnx a##1{%
  \addcytoks{x}}{%
  \tctestifnum{`##1>`/}{\tctestifnum{`##1<`:}{%
    \addcytoks{0}}{\addcytoks{##1}}}{\addcytoks{##1}}}}
{\addcytoks{##1}}
{\addcytoks{##1}}
{\addcytoks{##1}}

\let\svincludegraphics\includegraphics
\renewcommand\includegraphics[2][]{\svincludegraphics[#1]{example-image-c}}
\begin{document} 
\chickenize
This is a \textit{\chickenize test\endchickenize} of descenders yig.

Of a substitute font with math: 

\hspace{.5in}$y = mx^{\chickenize2x\endchickenize} + b_{\chickenize5\endchickenize}$

\begin{questions}
    \question[7] 
    some  text  to be replaced by a dummy one \textsuperscript{%
  \chickenize super\endchickenize} \textsubscript{\chickenize sub\endchickenize}. 

    \includegraphics|[width=0.25\linewidth]|{example-image-a}%
  \vspace{\baselineskip}

    \begin{tabular}{c}
    \hline
    some text\\
    another text\\
    \hline
\end{tabular}

\end{questions}
\endchickenize
\end{document}

ps 对于使用此（）包的另一个相关答案tokcycle，如果您希望用不同的字母替换每个字母：LaTeX Uglifier/混淆器

Answer