
在某些情況下,我想在章節編號後面附加一個字符,但不是在所有情況下。更改也應反映在目錄中。章節編號應如下所示:
1
2a
2b
3
我怎樣才能做到這一點?
答案1
我的答案的一個變體有特定編號的章節 (1, 1b, 2, 2b, 3, 4)
\documentclass{book}
\usepackage{hyperref} % optional
\makeatletter
\newcounter{repchapter}
\let\latex@chapter\chapter
\renewcommand{\chapter}{\@ifstar{\latex@chapter*}{\guuk@chapter}}
\newcommand{\guuk@chapter}{\@ifnextchar+{\repeat@chapter}{\restorechapter\latex@chapter}}
\newcommand{\repeat@chapter}[1]{% #1 is +
\ifnum\value{repchapter}>0
\addtocounter{chapter}{-1}%
\fi
\stepcounter{repchapter}%
\latex@chapter
}
\newcommand{\restorechapter}{%
\setcounter{repchapter}{0}%
}
\def\thechapter{\arabic{chapter}\alph{repchapter}}
% this is for hyperref (it does nothing if not loaded)
\def\theHchapter{\arabic{chapter}\alph{repchapter}}
\makeatother
\begin{document}
\tableofcontents
\chapter{Title}
x
\chapter+{First part}
x
\chapter+{Second part}
x
\chapter{Normal}
x
\end{document}
如果你需要類似的東西
1
2a
2b
3a
3b
你必須\restorechapter
在第 3a 章之前發出才能將輔助計數器重設為零,所以
\chapter{One}
<text>
\chapter+{Two A}
<text>
\chapter+{Two B}
<text>
\restorechapter
\chapter+{Three A}
<text>
\chapter+{Three B}
<text>
一個可能更好的接口,具有鍵值語法:
\documentclass{book}
\usepackage{xparse}
\usepackage{hyperref}
\newcounter{repchapter}
\let\latexchapter\chapter
\renewcommand\thechapter{\arabic{chapter}\alph{repchapter}}
% this is for hyperref (it does nothing if not loaded)
\providecommand\theHchapter{}
\renewcommand\theHchapter{\arabic{chapter}\alph{repchapter}}
\ExplSyntaxOn
\RenewDocumentCommand{\chapter}{sO{}m}
{
\IfBooleanTF{#1}
{\latexchapter*{#3}}
{\egreg_complex_chapter:nn { #2 } { #3 }}
}
\keys_define:nn { egreg/complex_chapter }
{
tochead .tl_set:N = \l_egreg_complex_chapter_tochead_tl,
suffix .bool_set:N = \l_egreg_complex_chapter_suffix_bool,
suffix .default:n = { true },
reset .bool_set:N = \l_egreg_complex_chapter_reset_bool,
reset .default:n = { true },
}
\cs_new_protected:Npn \egreg_complex_chapter:nn #1 #2
{
\keys_set:nn { egreg/complex_chapter }
{
tochead = { #2 },
suffix = false,
reset = false,
#1
}
\bool_if:NT \l_egreg_complex_chapter_reset_bool
{
\setcounter{repchapter}{0}
}
\bool_if:NTF \l_egreg_complex_chapter_suffix_bool
{
\int_compare:nT { \value{repchapter} > 0 }
{
\addtocounter{chapter}{-1}
}
\stepcounter{repchapter}
}
{
\setcounter{repchapter}{0}
}
\latexchapter[\l_egreg_complex_chapter_tochead_tl]{#2}
}
\ExplSyntaxOff
\begin{document}
\tableofcontents
\chapter{Title}
x
\chapter[suffix]{First part}
x
\chapter[suffix,tochead=Second part]{Second part with a very long title}
x
\chapter[reset,suffix]{Another first part}
x
\chapter[suffix]{Another second part}
x
\end{document}
reset
僅當需要新編號的分割章節緊接在另一個分割章節時才需要該金鑰。
由於我們已經重載了可選參數,因此該鍵tochead
用於指定縮寫標題。
答案2
快(而且髒!)
\documentclass{book}
\let\latexthechapter\thechapter
% Helper counter
\newcounter{alphachapter}
\setcounter{alphachapter}{0}
\makeatletter
\newcommand{\DoReallyBadThingsToChapterCounter}{%
\setcounter{alphachapter}{0}%
\stepcounter{chapter}%
% Store chapter command
\let\latexc@chapter\c@chapter%
% Force chapter command to be help counter
\let\c@chapter\c@alphachapter%
% Change output format
\renewcommand{\thechapter}{\the\latexc@chapter\alph{alphachapter}}%
}
\newcommand{\RestoreChapterCounterMethod}{%
% Restore chapter counter command
\let\c@chapter\latexc@chapter%
% Restore chapter counter output format
\let\thechapter\latexthechapter%
}
\makeatother
\begin{document}
\tableofcontents
\chapter{First}
\DoReallyBadThingsToChapterCounter
\chapter{Second A}
\chapter{Second B}
\chapter{Second C}
\RestoreChapterCounterMethod
\chapter{Third}
\chapter{Fourth}
\DoReallyBadThingsToChapterCounter
\chapter{Fifth A}
\chapter{Fifth B}
\chapter{Fifth C}
\RestoreChapterCounterMethod
\chapter{Sixth}
\end{document}