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使用计数器临时组成整数数组

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使用计数器临时组成整数数组

我需要跟踪几个计数器。为此，我使用一组计数器并尝试将它们绑定到一个\ifthenelse生成临时整数数组的 hack 中。然后我稍后使用该 hack 的输出来执行\setcounter。如果我尝试直接\thetypefirst在 中使用\setcounter，它会顺利通过。但是，如果它隐藏在一堆 中\ifthenelse，它会产生缺失数字错误。

MWE（实际上不起作用）：

\documentclass{article}
\usepackage{ifthen}

\newcounter{typezero} 
\newcounter{typefirst} 
\newcounter{typesecond} 
\newcounter{typethird} 
\newcounter{typefourth} 
\newcounter{typefifth} 
\newcounter{typesixth} 
\newcounter{typeseventh} 
\newcounter{typeeightth} 

% set a few values
\setcounter{typefirst}{11}
\setcounter{typesecond}{12}

\newcommand{\typeofdata}[1]{ % fails in an \setcounter statement
        \ifthenelse{\equal{#1}{0}}{ \thetypezero }{%
        \ifthenelse{\equal{#1}{1}}{ \thetypefirst }{%
        \ifthenelse{\equal{#1}{2}}{ \thetypesecond }{%
        \ifthenelse{\equal{#1}{3}}{ \thetypethird }{%
        \ifthenelse{\equal{#1}{4}}{ \thetypefourth }{%
        \ifthenelse{\equal{#1}{5}}{ \thetypefifth }{%
        \ifthenelse{\equal{#1}{6}}{ \thetypesixth }{%
        \ifthenelse{\equal{#1}{7}}{ \thetypeseventh }{%
        \ifthenelse{\equal{#1}{8}}{ \thetypeeightth }{%
    }}}}}}}}}
}

\newcommand{\tempcmd}{\thetypefirst} % works in an \setcounter statement

\begin{document}
    \newcounter{tmpp}
    \setcounter{tmpp}{\tempcmd}
    counter typefirst =\thetmpp \\
    \setcounter{tmpp}{\typeofdata{2}} %fail
    counter typesecond =\thetmpp \\
\end{document}

知道如何让它工作吗？

在此处输入图片描述

答案1

为什么不直接使用数字呢？

\documentclass{article}

\newcounter{type0} 
\newcounter{type1}
\newcounter{type2}
\newcounter{type3}
\newcounter{type4}
\newcounter{type5}
\newcounter{type6}
\newcounter{type7}
\newcounter{type8}
\newcounter{type9}

% set a few values
\setcounter{type1}{11}
\setcounter{type2}{12}

\newcommand{\thetypeofdata}[1]{\csname thetype#1\endcsname}
\newcommand{\typeofdata}[1]{\value{type#1}}

\begin{document}
\newcounter{tmpp}
\setcounter{tmpp}{\typeofdata{1}}

counter typefirst = \thetmpp

\setcounter{tmpp}{\typeofdata{2}} %fail

counter typesecond =\thetmpp

\end{document}

答案2

我很乐意为您提供更优雅的建议。我认为这是可行的。

\documentclass{article}
\usepackage{ifthen}

\newcounter{typezero} 
\newcounter{typefirst} 
\newcounter{typesecond} 
\newcounter{typethird} 
\newcounter{typefourth} 
\newcounter{typefifth} 
\newcounter{typesixth} 
\newcounter{typeseventh} 
\newcounter{typeeightth} 

% set a few values
\setcounter{typefirst}{11}
\setcounter{typesecond}{12}

\newcommand{\typeofdata}[1]{ % fails in an \setcounter statement
        \ifthenelse{\equal{#1}{0}}{\global\def\pfft{\thetypezero}}{%
        \ifthenelse{\equal{#1}{1}}{\global\def\pfft{\thetypefirst}}{%
        \ifthenelse{\equal{#1}{2}}{\global\def\pfft{\thetypesecond}}{%
        \ifthenelse{\equal{#1}{3}}{\global\def\pfft{\thetypethird}}{%
        \ifthenelse{\equal{#1}{4}}{\global\def\pfft{\thetypefourth}}{%
        \ifthenelse{\equal{#1}{5}}{\global\def\pfft{\thetypefifth}}{%
        \ifthenelse{\equal{#1}{6}}{\global\def\pfft{\thetypesixth}}{%
        \ifthenelse{\equal{#1}{7}}{\global\def\pfft{\thetypeseventh}}{%
        \ifthenelse{\equal{#1}{8}}{\global\def\pfft{\thetypeeightth}}{%
    }}}}}}}}}
}

\newcommand{\tempcmd}{\thetypefirst} % works in an \setcounter statement

\begin{document}
    \newcounter{tmpp}
    \setcounter{tmpp}{\tempcmd}
    \typeofdata{2}
    counter typefirst =\thetmpp \\
    \typeofdata{2}\setcounter{tmpp}{\pfft}\thetmpp  \\
    \typeofdata{4}\setcounter{tmpp}{\pfft}\thetmpp  \\

\end{document}

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