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跨章節交叉引用

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跨章節交叉引用

我更新了章節/部分...等的命令，因此我沒有在所有（子）部分名稱中看到章節編號。另外一點是，當我在一個章節中並且用來\ref引用當前章節的某個部分時，我只能看到該部分的編號（而不是其前面的章節編號）。這是\renewcommand我正在使用的：

\renewcommand{\thechapter}{\Roman{chapter}}
\renewcommand{\thesection}{\arabic{section}}
\renewcommand{\thesubsection}{\thesection.\arabic{subsection}}
\renewcommand{\thesubsubsection}{\thesubsection.\arabic{subsubsection}}

但現在我還希望能夠引用另一章中的部分，在這種情況下，我希望顯示該章的編號。我找不到辦法做到這一點......我目前絕望地嘗試解決這個問題是使用它：

\newcommand\fullref[2]{\ref{#1}.\ref{#2}}

其中兩個參數是章節的標籤和本章中節的標籤。因此，透過該命令，我得到了我想要的參考外觀，但顯然我有 2 個超文本連結。是否有類似的東西，但有一個指向該部分的唯一連結？

這是一個完整的獨立範例：

\documentclass[a4paper]{report}
\usepackage{hyperref}

\renewcommand{\thechapter}{\Roman{chapter}}
\renewcommand{\thesection}{\arabic{section}}
\renewcommand{\thesubsection}{\thesection.\arabic{subsection}}
\renewcommand{\thesubsubsection}{\thesubsection.\arabic{subsubsection}}

\newcommand\fullref[2]{\ref{#1}.\ref{#2}}

\begin{document}

\begin{titlepage}
\end{titlepage}


\chapter{Hello}
\label{chapter: Hello}

\section{I'm Brian}
\label{section: Brian}

\section{I'm from the US}
\label{section: US}

A section from this chapter don't need to have the chapter number in it's reference : \ref{section: Brian}.

But a section from an other chapter should have it : \fullref{Chapter: Welcome}{section: Bob}


\chapter{Welcome}
\label{Chapter: Welcome}

\section{I'm Bob}
\label{section: Bob}

\section{I'm from the Canada}
\label{section: Canada}


\end{document}

答案1

我認為這種情況不會經常發生，否則您將堅持使用章節編號的預設分層定義，包括從一開始的章節。為此，請定義一個新\label宏，將\totallabel其新增\thechapter.至現有標籤之前，您可以像往常一樣使用以下命令進行參考\ref：

在此輸入影像描述

\documentclass[a4paper]{report}
\usepackage{hyperref}

\renewcommand{\thechapter}{\Roman{chapter}}
\renewcommand{\thesection}{\arabic{section}}
\renewcommand{\thesubsection}{\thesection.\arabic{subsection}}
\renewcommand{\thesubsubsection}{\thesubsection.\arabic{subsubsection}}

\newcommand\fullref[2]{\ref{#1}.\ref{#2}}

\makeatletter
\newcommand{\totallabel}[1]{% \totallabel{<label>}
  \edef\@currentlabel{\thechapter.\@currentlabel}% Prepend \thechapter. to current label
  \label{#1}%
}
\makeatother

\begin{document}

\chapter{Hello}
\label{chap:Hello}

\section{I'm Brian}
\label{sec:Brian}

\section{I'm from the US}
\label{sec:US}

A section from this chapter don't need to have the chapter number in it's reference : \ref{sec:Brian}.

But a section from an other chapter should have it: \fullref{chap:Welcome}{sec:Bob} \ref{chap:sec:Bob}


\chapter{Welcome}
\label{chap:Welcome}

\section{I'm Bob}
\label{sec:Bob}\totallabel{chap:sec:Bob}% Insert a \totallabel

\section{I'm from the Canada}
\label{sec:Canada}

\end{document}

答案2

這使用了“黑客”

使用此方法儲存標籤\@currentlabel，該方法評估計數器格式輸出巨集的目前設定\the....。

我暫時恢復它，使用\@currentchapterlabel，強制它是\@currentlabel，並添加一個以 為前綴的自動附加標籤chapterfullabel::，其寫法類似，全部在一個組中，這樣就不會影響外部巨集。

引用是透過 \fullref{labelname} 完成的，它會自動使用標籤標記。我不建議重新定義\ref此類事情。

\documentclass{book}

\usepackage{xpatch}

\usepackage[hypertexnames=true]{hyperref}

% Save the definitions of \the.... macros first 

\let\latexthechapter\thechapter
\let\latexthesection\thesection
\let\latexthesubsection\thesubsection
\let\latexthesubsubsection\thesubsubsection

% Now redefine
\renewcommand{\thechapter}{\Roman{chapter}}
\renewcommand{\thesection}{\arabic{section}}
\renewcommand{\thesubsection}{\thesection.\arabic{subsection}}
\renewcommand{\thesubsubsection}{\thesubsection.\arabic{subsubsection}}

\makeatletter

% Generate a user-defined tag for the full chapter label
\newcommand{\fullreftagname}{chapterfulllabel::}

% Command for restoring \the.... macros
\newcommand{\@@restorechapterformat}{%
  \let\thechapter\latexthechapter
  \let\thesection\latexthesection
  \let\thesubsection\latexthesubsection
  \let\thesubsubsection\latexthesubsubsection
}%

\xapptocmd{\refstepcounter}{%
  \begingroup%
  \@@restorechapterformat%  Temporarily use the full format
  \protected@xdef\@currentchapterlabel
  {\csname p@#1\endcsname\csname the#1\endcsname}%
  \endgroup}{\typeout{Great Success}}{\typeout{Miserable fail}}

\AtBeginDocument{%  Must be here due to hyperref`s change
  \let\LaTeXLabel\label%
  \renewcommand{\label}[1]{%
    \begingroup
    \let\@currentlabel\@currentchapterlabel%
    \LaTeXLabel{\fullreftagname#1}% Write another label with \fullreftagname prefix
    \endgroup
    \LaTeXLabel{#1}% regular label
  }%
}

\newcommand{\fullref}[1]{%
  \ref{\fullreftagname#1}%
}
\makeatother


\begin{document}
\tableofcontents
\chapter{First}

\section{Introduction} \label{sec::introduction}

\subsection{Background} 

\chapter{Other chapter}

\section{Solution of everything} \label{sec::solution_of_everything}

\subsection{The world formula -- at last}

\subsubsection{More down} \label{subsubsec::something}

\chapter{Last chapter}

In \fullref{sec::introduction} we saw... whereas in \fullref{sec::solution_of_everything}, however in 
\fullref{subsubsec::something}

\end{document}

在此輸入影像描述

答案3

怎麼樣，但是你仍然有目錄的問題

\documentclass[a4paper]{report}
\usepackage{hyperref}

\makeatletter
\def\@seccntformat#1{\@ifundefined{#1@cntformat}%
{\csname the#1\endcsname\quad}% 
{\csname #1@cntformat\endcsname}}

\def\section@cntformat{\arabic{section}\quad}
\def\subsection@cntformat{\arabic{section}.\arabic{subsection}\quad}

\renewcommand{\thechapter}{\Roman{chapter}}
\renewcommand{\thesection}{\thechapter.\arabic{section}}
\renewcommand{\thesubsection}{\thesection.\arabic{subsection}}
\renewcommand{\thesubsubsection}{\thesubsection.\arabic{subsubsection}}
\makeatother

\begin{document}

\begin{titlepage}
\end{titlepage}

\tableofcontents
\chapter{Hello}
\label{chapter: Hello}

\section{I'm Brian}
\label{section: Brian}
\subsection{I'm Brian}

\section{I'm from the US}
\label{section: US}

A section from this chapter don't need to have the chapter number in it's reference : \ref{section: Brian}.

But a section from an other chapter should have it : \ref{section: Bob}

\chapter{Welcome}
\label{Chapter: Welcome}

\section{I'm Bob}
\label{section: Bob}

\section{I'm from the Canada}
\label{section: Canada}

\end{document}

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