如何强制第二次运行来定义缺少的引用？

Question

将解决方案扩展为我之前的问题我想告诉 LaTeX 运行多次，直到定义变量。在演示示例中，我希望 A 和 C 部分的输出相同。有什么想法吗？

\documentclass{article}

\usepackage{hyperref}
\usepackage{varioref}

\newcounter{mycounter}
\makeatletter
\newcommand{\defineAndPrintXX}[3]{%
  \refstepcounter{mycounter}%
  \begingroup\edef\x{\endgroup\noexpand\@namedef{#1@id}{FSR \themycounter}}\x
  \@namedef{#1@definition}{#2}

  \hypertarget{#1}{%
  \subsection{\csname#1@id\endcsname}\label{#1}}
  % use the definition, i.e. #2   
  \csname#1@definition\endcsname
    
  #3
}

\newcommand{\referToXX}[1]{
    \protect\hyperlink{#1}{\csname#1@id\endcsname} (see section \vref{#1}) \newline
    \csname#1@definition\endcsname
}


\begin{document}

\section{A}
Test before definition: \referToXX{test-1}

\section{B}
\defineAndPrintXX{test-1}{Definition 1}{Bla bla}
\defineAndPrintXX{test-2}{Definition 2}{Bla bla}

\section{C}
Test after definition: \referToXX{test-1}

\end{document}

Answer 1

使用包参考值您可以指定自己的属性（不仅仅是页码、通过增加的计数器值\refstepcounter等），这些属性的值将在放置（zref-）标签进行交叉引用时被记录。

只要您的每个 XX-thingies 都创建另一个小节并放置用于交叉引用的标签，您就不需要指定\hypertarget/，\hyperlink因为 hyperref-package 会自动为每个小节创建一个目标/目的地（在放置交叉引用标签的情况下），可以通过 创建超链接进行访问。\hyperref[{⟨cross-referencing-label⟩}]{⟨text of the hyperlink⟩}

\documentclass{article}

\usepackage{zref}
\usepackage{varioref}
\usepackage{hyperref}

\newcounter{XXcounter}

\makeatletter
\zref@newprop{XXid}{}%
\zref@newprop{XXdefinition}{}%
\newcommand{\defineAndPrintXX}[3]{%
  \refstepcounter{XXcounter}%
  \zref@setcurrent{XXid}{FSR\protect~\theXXcounter}%
  \zref@setcurrent{XXdefinition}{#2}%
  \par
  \subsection{FSR~\theXXcounter}%
  \@bsphack
  \begingroup
  \let\@bsphack\relax
  \let\@esphack\relax
  \label{#1}%
  \zref@labelbyprops{#1}{XXid,XXdefinition}%
  \endgroup
  \@esphack
  #2\par#3%
}%
\newcommand{\referToXX}[1]{%
  \zifrefundefined{#1}{\nfss@text{\reset@font\bfseries??}}{%
    \hyperref[{#1}]{%
      \zref@extractdefault{#1}{XXid}{}%
    } (see section \vref{#1})\newline
    \zref@extractdefault{#1}{XXdefinition}{}%
  }%
}%
\makeatother


\begin{document}

\section{Tests before definitions}

\noindent\verb|\referToXX{test-1}|:\\
\referToXX{test-1}

\noindent\verb|\referToXX{test-2}|:\\
\referToXX{test-2}

\section{Place of definitions}
\defineAndPrintXX{test-1}{Definition 1}{Bla bla}
\defineAndPrintXX{test-2}{Definition 2}{Bla bla}

\section{Tests after definitions}

\noindent\verb|\referToXX{test-1}|:\\
\referToXX{test-1}

\noindent\verb|\referToXX{test-2}|:\\
\referToXX{test-2}

\end{document}

如果（无论出于何种原因）您坚持要有另一个目标/目的地，其名称与交叉引用标签的名称/的第一个参数相对应\defineAndPrintXX，那么您也可以通过 zref 属性来处理这个问题：

\documentclass{article}

\usepackage{zref}
\usepackage{hyperref}
\usepackage{varioref}

\newcounter{XXcounter}

\makeatletter
\zref@newprop{XXid}{}%
\zref@newprop{XXdefinition}{}%
\zref@newprop{XXdestination}{}%
\newcommand{\defineAndPrintXX}[3]{%
  \refstepcounter{XXcounter}%
  \zref@setcurrent{XXid}{FSR\protect~\theXXcounter}%
  \zref@setcurrent{XXdefinition}{#2}%
  \zref@setcurrent{XXdestination}{#1}%
  \par
  \hypertarget{#1}{\subsection{FSR~\theXXcounter}}%
  \@bsphack
  \begingroup
  \let\@bsphack\relax
  \let\@esphack\relax
  \label{#1}%
  \zref@labelbyprops{#1}{XXid,XXdefinition,XXdestination}%
  \endgroup
  \@esphack
  #2\par#3%
}%
\newcommand{\referToXX}[1]{%
  \zifrefundefined{#1}{\nfss@text{\reset@font\bfseries??}}{%
    \hyperlink{\zref@extractdefault{#1}{XXdestination}{}}{%
      \zref@extractdefault{#1}{XXid}{}%
    } (see section \vref{#1})\newline
    \zref@extractdefault{#1}{XXdefinition}{}%
  }%
}%
\makeatother


\begin{document}

\section{Tests before definitions}

\noindent\verb|\referToXX{test-1}|:\\
\referToXX{test-1}

\noindent\verb|\referToXX{test-2}|:\\
\referToXX{test-2}

\section{Place of definitions}
\defineAndPrintXX{test-1}{Definition 1}{Bla bla}
\defineAndPrintXX{test-2}{Definition 2}{Bla bla}

\section{Tests after definitions}

\noindent\verb|\referToXX{test-1}|:\\
\referToXX{test-1}

\noindent\verb|\referToXX{test-2}|:\\
\referToXX{test-2}

\end{document}