货币中的特殊美分符号

Question

我制作了一个代码，它有一种特殊的方式来书写分值。

以下是 MWE：

\documentclass{article}
\usepackage{graphicx}

\makeatletter
\newif\if@thecomma
\def\normal@comma{,}
{
 \catcode`\,=\active
 \gdef,{
    \if@thecomma
        \expandafter\special@comma
    \else
        \expandafter\normal@comma
    \fi}
}
\AtBeginDocument{\catcode`\,=\active}
\def\special@comma#1#2{
    \ifx#1,
    \else
        \ifmmode
            \hspace{-0.1em}\normal@comma{\raisebox{-0.10em}{\hspace{-0.28em}\scalebox{0.94}{$^{#1#2}$}}}\@thecommafalse
        \else
            ,#1#2
        \fi
    \fi
}
\def\U{\ifmmode\@thecommatrue\scalebox{0.95}{\scalebox{0.98}{U\hspace{0.05em}\scalebox{0.96}{$\$$}}}\hspace{0.2em}\fi}
\makeatother

\begin{document}

I spent $\U213,22$ in last month.

\end{document}

此代码可用于多种用途，但我与 TikZ 节点有冲突 - 原因不太清楚。有没有建议获得更好的代码，没有这些极端情况？

Answer 1

在我看来，坚持使用标准 LaTeX 符号来表示参数更容易：

\documentclass{article}
\usepackage{xparse}

\NewDocumentCommand{\U}{>{\SplitArgument{1}{,}}m}{%
  \mbox{\normalfont U\$\,\Uinner#1}%
}
\NewDocumentCommand{\Uinner}{mm}{%
  #1,%
  \Uraise{\IfNoValueTF{#2}{00}{#2}}%
}
\NewDocumentCommand{\Uraise}{m}{%
  \begingroup\sbox{0}{0}%
  \raisebox{\dimexpr\ht0-\height}{\scriptsize#1}%
  \endgroup
}

\begin{document}

I spent \U{213,22} in last month and \U{10} today.

\end{document}