如何在一个文档中包含两个变量数组

如何在一个文档中包含两个变量数组

我使用了一个例子

创建变量数组

通过添加新的\newcommand,如下面的代码所示:

\documentclass{article} 
\usepackage{etoolbox}

\newcounter{cnt}
\newcommand\textlist{}
\newcommand\settext[2]{%
  \csdef{text#1}{#2}}
\newcommand\addtext[1]{%
  \stepcounter{cnt}%
  \csdef{text\thecnt}{#1}}
\newcommand\gettext[1]{%
  \csuse{text#1}}

\newcounter{newcnt}
\newcommand\newtextlist{}
\newcommand\setnewtext[2]{%
  \csdef{text#1}{#2}}
\newcommand\addnewtext[1]{%
  \stepcounter{newcnt}%
  \csdef{text\thenewcnt}{#1}}
\newcommand\getnewtext[1]{%
  \csuse{text#1}}


\begin{document}

\addtext{one}
\addtext{two}
\addtext{three}
\settext{100}{one hundred}

 This is text \gettext{1} and \gettext{3}, that is text \gettext{2}.
 100 is \gettext{100}.\\

 Add new info into newtext.
\addnewtext{four}
\addnewtext{five}
\addnewtext{six}
\setnewtext{100}{seven hundred}

 This is newtext \getnewtext{1} and \getnewtext{3}, that is newtext \getnewtext{2}.

 100 is \getnewtext{100}.\\

 This is text \gettext{1} and \gettext{3}, that is text \gettext{2}.
 100 is \gettext{100}.\\

\end{document}

第一次调用gettext将会给出正确答案:一二三。但第二个gettext将获得与getnewtext上面相同的数据:四,五,六

我怎样才能恢复到以前的样子一二三? 谢谢。

答案1

您可以根据需要维护任意数量的数组(实际上是属性列表),并使用一致的接口expl3

\documentclass{article}
\usepackage{xparse}

\ExplSyntaxOn

% 1. The user interface
% 1a. \additem[<name>]{<text>}
\NewDocumentCommand{\additem}{ O{default} m }
 {
  \ramiza_array_add:nnn { #1 } { } { #2 }
 }
% 1b. \setitem[<name>]{<slot>}{<text>}
\NewDocumentCommand{\setitem}{ O{default} m m }
 {
  \ramiza_array_add:nnn { #1 } { #2 } { #3 }
 }
% 1c. \getitem[<name>]{<slot>}
\DeclareExpandableDocumentCommand{\getitem}{ O{default} m }
 {
  \ramiza_array_get:nn { #1 } { #2 }
 }

% 2. The internal functions
\cs_new_protected:Nn \ramiza_array_add:nnn
 {% if the array doesn't exist yet, allocate it with its related counter
  \prop_if_exist:cF { g_ramiza_array_#1_prop }
   {
    \prop_new:c { g_ramiza_array_#1_prop }
    \int_new:c { g_ramiza_array_#1_int }
   }
  \tl_if_empty:nTF { #2 }
   {% with \additem we step the counter and set the next slot
    \int_gincr:c { g_ramiza_array_#1_int }
    \prop_gput:cvn { g_ramiza_array_#1_prop } { g_ramiza_array_#1_int } { #3 }
   }
   {% with \setitem we set the requested slot
    \prop_gput:cnn { g_ramiza_array_#1_prop } { #2 } { #3 }
   }
 }
\cs_generate_variant:Nn \prop_gput:Nnn { cv }

\cs_new:Nn \ramiza_array_get:nn
 {% retrieve the requested item
  \prop_item:cn { g_ramiza_array_#1_prop } { #2 }
 }
\ExplSyntaxOff

\begin{document}

\additem{one}
\additem{two}
\additem{three}
\setitem{100}{one hundred}

This is text \getitem{1} and \getitem{3}, that is text \getitem{2}. 100 is \getitem{100}.

Add new info into newtext.
\additem[new]{four}
\additem[new]{five}
\additem[new]{six}
\setitem[new]{100}{seven hundred}

This is newtext \getitem[new]{1} and \getitem[new]{3}, that is newtext \getitem[new]{2}.

100 is \getitem[new]{100}.

This is text \getitem{1} and \getitem{3}, that is text \getitem{2}. 100 is \getitem{100}.

\end{document}

有一个“默认”数组,您无需使用可选参数 或 即可访问它\additem\setitem只要\getitem您使用可选参数\additem\setitem,就会分配一个新数组,与 一起使用\getitem

在此处输入图片描述

答案2

在第二个列表中使用newtext#1etc. 而不是text#1etc.。这些是定义宏名称。您希望它们是唯一的,否则您将覆盖旧定义。

哦,不要\\在普通环境中(外部等)使用它来换tabulararray

\documentclass{article}
\usepackage{etoolbox}

\newcounter{cnt}
\newcommand\textlist{}
\newcommand\settext[2]{%
  \csdef{text#1}{#2}}
\newcommand\addtext[1]{%
  \stepcounter{cnt}%
  \csdef{text\thecnt}{#1}}
\newcommand\gettext[1]{%
  \csuse{text#1}}

\newcounter{newcnt}
\newcommand\newtextlist{}
\newcommand\setnewtext[2]{%
  \csdef{newtext#1}{#2}}
\newcommand\addnewtext[1]{%
  \stepcounter{newcnt}%
  \csdef{newtext\thenewcnt}{#1}}
\newcommand\getnewtext[1]{%
  \csuse{newtext#1}}


\begin{document}

\addtext{one}
\addtext{two}
\addtext{three}
\settext{100}{one hundred}

 This is text \gettext{1} and \gettext{3}, that is text \gettext{2}.
 100 is \gettext{100}.

 Add new info into newtext.
\addnewtext{four}
\addnewtext{five}
\addnewtext{six}
\setnewtext{100}{seven hundred}

 This is newtext \getnewtext{1} and \getnewtext{3}, that is newtext \getnewtext{2}.

 100 is \getnewtext{100}.

 This is text \gettext{1} and \gettext{3}, that is text \gettext{2}.
 100 is \gettext{100}.

\end{document}

相关内容