我定义了两个宏，用于设置文档中方程编号的上下文。一个宏通过将方程计数器重置为 0 并将方程分组设置为作为参数提供的字符串，建立我称之为“块”的东西，在其中对方程进行编号，
\newcommand{\setgroupingblock}[1]{\gdef\equationgrouping{#1:}\phantomsection\setcounter{equation}{0}}
另一个设置部分（使用\setcounter{section}），然后调用我的第一个块设置宏：
\newcommand{\setgroupingsection}[1]{\setcounter{section}{#1}\setgroupingblock{#1}}
我出于各种原因使用这些函数，以获得对各个元素（不仅仅是方程式）编号的独立于章节的控制，并且它们用于mathtools按预期标记我的所有方程式。但是hyperref这些方程式的交叉引用链接无法正常工作。交叉引用似乎表现得好像它们仅在章节内编号，而忽略了“块”。
我已经盯着我的代码一段时间了，但仍然很困惑，希望能够帮助我找出我做错的地方。
\documentclass{article}
\usepackage{mathtools}
\usepackage{hyperref}
% Manually set the section; set a new 'block'
\newcommand{\setgroupingsection}[1]{\setcounter{section}{#1}\setgroupingblock{#1}}
% Set a 'block' for numbering equations, overriding any section, and resetting the equation counter
\newcommand{\setgroupingblock}[1]{\gdef\equationgrouping{#1:}\phantomsection\setcounter{equation}{0}}
% Equation numbering and referencing
\renewcommand{\theequation}{\equationgrouping\arabic{equation}}
\gdef\equationgrouping{}
\begin{document}
\setgroupingsection{10} Section \textbf{10} begins here. Subsequent equations are numbered within this section, until another section is started, or a block is started.
\begin{equation}
q(x)=f(x)\cdot g(x)\label{eq:X}
\end{equation}
\begin{equation}
a(i,j)=a(i,q)\cdot a(p,j)\label{eq:Y}
\end{equation}
\pagebreak{}%To clearly demonstrate hyperlinking jumps in PDF
\setgroupingblock{A} Block \textbf{A} begins here. Subsequent equations are numbered within this block, until another block is started, or another section is started.
\begin{equation}
f(x)=x^{2}+3x\label{eq:Example1}
\end{equation}
\begin{equation}
g(x)=\sin(\gamma^{2})\label{eq:Example2}
\end{equation}
\begin{equation}
f(x)=\cos(\delta^{2})\label{eq:Example3}
\end{equation}
\pagebreak{}%To clearly demonstrate hyperlinking jumps in PDF
\setgroupingsection{20} Section \textbf{20} begins here.
\begin{equation}
a(i,j)=a(i,q)\cdot a(p,j)\label{eq:Z}
\end{equation}
\pagebreak{}%To clearly demonstrate hyperlinking jumps in PDF
\setgroupingblock{B} Block \textbf{B} begins here.
\begin{equation}
f(x)=x^{2}+3x\label{eq:Example4}
\end{equation}
\pagebreak{}%To clearly demonstrate hyperlinking jumps in PDF
Numbering of equations works as desired, but hyperlinks in cross-references do not, Cross-references seem to behave as if they are numbered within sections only, ignoring blocks. For example the links to the first and second equations in block \textbf{A},\eqref{eq:Example1} and \eqref{eq:Example2} go to the corresponding equations in the most recent section before block \textbf{A}, \eqref{eq:X} and \eqref{eq:Y}; though the reference to \eqref{eq:Example3} works correctly (there is no corresponding equation in section \textbf{10} to "confuse" it with. Similarly \eqref{eq:Example4} links to \eqref{eq:Z}.
\end{document}
答案1
包裹更hyperref喜欢获得唯一的目的地名称，请参阅我的答案\theH<counter>\the<counter>更改 namedst 默认名称。
由于您的方程式可以在节或分组块内编号，因此可以将数字/字符串添加到\theHequation，例如：
\renewcommand{\theHequation}{\theHsection.\equationgrouping\arabic{equation}}
答案2
这详细阐述了 Heiko 的回答。
hyperref\Hy@AnchorName需要一个唯一的锚点（由within引用hyperref.sty）。查看您的示例没有
\renewcommand{\theHequation}{\theHsection.\equationgrouping\arabic{equation}}
.aux在您的文件中显示以下内容：
%...
\newlabel{eq:X}{{10:1}{1}{\relax }{equation.10.1}{}}
\newlabel{eq:Y}{{10:2}{1}{\relax }{equation.10.2}{}}
\newlabel{eq:Example1}{{A:1}{2}{\relax }{equation.10.1}{}}
\newlabel{eq:Example2}{{A:2}{2}{\relax }{equation.10.2}{}}
\newlabel{eq:Example3}{{A:3}{2}{\relax }{equation.10.3}{}}
\newlabel{eq:Z}{{20:1}{3}{\relax }{equation.20.1}{}}
\newlabel{eq:Example4}{{B:1}{4}{\relax }{equation.20.1}{}}
#4注意 的第二个参数中的第四个参数\newlabel{..}{{#1}{#2}{#3}{#4}{#5}}。这个锚点或目的地必须是唯一的，而你的显然不是，这会导致错误的超跳。
添加信息两个都每个标签的部分和组都具有唯一的锚点/目标：
\renewcommand{\theHequation}{\theHsection.\equationgrouping\arabic{equation}}
这是更新的.aux：
%...
\newlabel{eq:X}{{10:1}{1}{\relax }{equation.10.10:1}{}}
\newlabel{eq:Y}{{10:2}{1}{\relax }{equation.10.10:2}{}}
\newlabel{eq:Example1}{{A:1}{2}{\relax }{equation.10.A:1}{}}
\newlabel{eq:Example2}{{A:2}{2}{\relax }{equation.10.A:2}{}}
\newlabel{eq:Example3}{{A:3}{2}{\relax }{equation.10.A:3}{}}
\newlabel{eq:Z}{{20:1}{3}{\relax }{equation.20.20:1}{}}
\newlabel{eq:Example4}{{B:1}{4}{\relax }{equation.20.B:1}{}}
显示出明显独特的锚点/目的地。