如何让 Beamer Rmarkdown appendixnumberbeamer 包工作以不计算附录页面?

How to get Beamer Rmarkdown appendixnumberbeamer package to work to not count appendix pages?

我正在尝试在 Rmarkdown 中编译一个 Beamer 演示文稿,它计算幻灯片,但不计算附录中的幻灯片。之前在这里问过同样的问题:

但给出的答案并不令人满意(对我而言),由于缺乏声誉,我无法对其发表评论。原因是当我没有与附录幻灯片相同数量的主幻灯片时,它给出了奇怪的编号。

在标准 Latex 中,可以在序言中包含 \usepackage{appendixnumberbeamer} 并在备份幻灯片之前简单地指定 \appendix。在 Rmarkdown 中,包 appendixnumberbeamer 打破了默认的 pandoc 模板,特别是当部分标题存在时以下条件块中的部分:

$if(section-titles)$
\AtBeginPart{
  \let\insertpartnumber\relax
  \let\partname\relax
  \frame{\partpage}
}
\AtBeginSection{
  \ifbibliography
  \else
    \let\insertsectionnumber\relax
    \let\sectionname\relax
    \frame{\sectionpage}
  \fi
}
\AtBeginSubsection{
  \let\insertsubsectionnumber\relax
  \let\subsectionname\relax
  \frame{\subsectionpage}
}
$endif$

上一个答案的建议解决方案基本上是注释掉这个代码块,在 YAML 中提供一个包含 appendixnumberbeamer 包的 header 和一个注释掉代码的 template.tex 文件抛出错误的部分。

my_header.tex

\usepackage{appendixnumberbeamer}
\usepackage{lipsum}

我的_template.tex

\documentclass[$if(fontsize)$$fontsize$,$endif$$if(lang)$$babel-lang$,$endif$$if(handout)$handout,$endif$$if(colorlinks)$dvipsnames,$endif$$if(beamer)$ignorenonframetext,$endif$$for(classoption)$$classoption$$sep$,$endfor$]{$documentclass$}
\setbeamertemplate{caption}[numbered]
\setbeamertemplate{caption label separator}{: }
\setbeamercolor{caption name}{fg=normal text.fg}
\beamertemplatenavigationsymbols$if(navigation)$$navigation$$else$empty$endif$
$if(fontfamily)$
\usepackage[$for(fontfamilyoptions)$$fontfamilyoptions$$sep$,$endfor$]{$fontfamily$}
$else$
\usepackage{lmodern}
$endif$
\usepackage{amssymb,amsmath}
\usepackage{ifxetex,ifluatex}
\usepackage{fixltx2e} % provides \textsubscript
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
  \usepackage[$if(fontenc)$$fontenc$$else$T1$endif$]{fontenc}
  \usepackage[utf8]{inputenc}
$if(euro)$
  \usepackage{eurosym}
$endif$
\else % if luatex or xelatex
  \ifxetex
    \usepackage{mathspec}
  \else
    \usepackage{fontspec}
  \fi
  \defaultfontfeatures{Ligatures=TeX,Scale=MatchLowercase}
$for(fontfamilies)$
  \newfontfamily{$fontfamilies.name$}[$fontfamilies.options$]{$fontfamilies.font$}
$endfor$
$if(euro)$
  \newcommand{\euro}{€}
$endif$
$if(mainfont)$
    \setmainfont[$for(mainfontoptions)$$mainfontoptions$$sep$,$endfor$]{$mainfont$}
$endif$
$if(sansfont)$
    \setsansfont[$for(sansfontoptions)$$sansfontoptions$$sep$,$endfor$]{$sansfont$}
$endif$
$if(monofont)$
    \setmonofont[Mapping=tex-ansi$if(monofontoptions)$,$for(monofontoptions)$$monofontoptions$$sep$,$endfor$$endif$]{$monofont$}
$endif$
$if(mathfont)$
    \setmathfont(Digits,Latin,Greek)[$for(mathfontoptions)$$mathfontoptions$$sep$,$endfor$]{$mathfont$}
$endif$
$if(CJKmainfont)$
    \usepackage{xeCJK}
    \setCJKmainfont[$for(CJKoptions)$$CJKoptions$$sep$,$endfor$]{$CJKmainfont$}
$endif$
\fi
$if(theme)$
\usetheme[$for(themeoptions)$$themeoptions$$sep$,$endfor$]{$theme$}
$endif$
$if(colortheme)$
\usecolortheme{$colortheme$}
$endif$
$if(fonttheme)$
\usefonttheme{$fonttheme$}
$endif$
$if(mainfont)$
\usefonttheme{serif} % use mainfont rather than sansfont for slide text
$endif$
$if(innertheme)$
\useinnertheme{$innertheme$}
$endif$
$if(outertheme)$
\useoutertheme{$outertheme$}
$endif$
% use upquote if available, for straight quotes in verbatim environments
\IfFileExists{upquote.sty}{\usepackage{upquote}}{}
% use microtype if available
\IfFileExists{microtype.sty}{%
\usepackage{microtype}
\UseMicrotypeSet[protrusion]{basicmath} % disable protrusion for tt fonts
}{}
$if(lang)$
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
  \usepackage[shorthands=off,$for(babel-otherlangs)$$babel-otherlangs$,$endfor$main=$babel-lang$]{babel}
$if(babel-newcommands)$
  $babel-newcommands$
$endif$
\else
  \usepackage{polyglossia}
  \setmainlanguage[$polyglossia-lang.options$]{$polyglossia-lang.name$}
$for(polyglossia-otherlangs)$
  \setotherlanguage[$polyglossia-otherlangs.options$]{$polyglossia-otherlangs.name$}
$endfor$
\fi
$endif$
\newif\ifbibliography
$if(natbib)$
\usepackage{natbib}
\bibliographystyle{$if(biblio-style)$$biblio-style$$else$plainnat$endif$}
$endif$
$if(biblatex)$
\usepackage[$if(biblio-style)$style=$biblio-style$,$endif$$for(biblatexoptions)$$biblatexoptions$$sep$,$endfor$]{biblatex}
$for(bibliography)$
\addbibresource{$bibliography$}
$endfor$
$endif$
$if(verbatim-in-note)$
\usepackage{fancyvrb}
$endif$
\hypersetup{
$if(title-meta)$
            pdftitle={$title-meta$},
$endif$
$if(author-meta)$
            pdfauthor={$author-meta$},
$endif$
$if(keywords)$
            pdfkeywords={$for(keywords)$$keywords$$sep$, $endfor$},
$endif$
$if(colorlinks)$
            colorlinks=true,
            linkcolor=$if(linkcolor)$$linkcolor$$else$Maroon$endif$,
            citecolor=$if(citecolor)$$citecolor$$else$Blue$endif$,
            urlcolor=$if(urlcolor)$$urlcolor$$else$Blue$endif$,
$else$
            pdfborder={0 0 0},
$endif$
            breaklinks=true}
\urlstyle{same}  % don't use monospace font for urls
$if(verbatim-in-note)$
\VerbatimFootnotes % allows verbatim text in footnotes
$endif$
$if(listings)$
\usepackage{listings}
$endif$
$if(lhs)$
\lstnewenvironment{code}{\lstset{language=Haskell,basicstyle=\small\ttfamily}}{}
$endif$
$if(highlighting-macros)$
$highlighting-macros$
$endif$
$if(tables)$
\usepackage{longtable,booktabs}
\usepackage{caption}
% These lines are needed to make table captions work with longtable:
\makeatletter
\def\fnum@table{\tablename~\thetable}
\makeatother
$endif$
$if(graphics)$
\usepackage{graphicx,grffile}
\makeatletter
\def\maxwidth{\ifdim\Gin@nat@width>\linewidth\linewidth\else\Gin@nat@width\fi}
\def\maxheight{\ifdim\Gin@nat@height>\textheight0.8\textheight\else\Gin@nat@height\fi}
\makeatother
% Scale images if necessary, so that they will not overflow the page
% margins by default, and it is still possible to overwrite the defaults
% using explicit options in \includegraphics[width, height, ...]{}
\setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}
$endif$

% Prevent slide breaks in the middle of a paragraph:
\widowpenalties 1 10000
\raggedbottom

% comment out the breaking section of the standard template
%$if(section-titles)$
%\AtBeginPart{
%  \let\insertpartnumber\relax
%  \let\partname\relax
%  \frame{\partpage}
%}
%\AtBeginSection{
%  \ifbibliography
%  \else
%    \let\insertsectionnumber\relax
%    \let\sectionname\relax
%    \frame{\sectionpage}
%  \fi
%}
%\AtBeginSubsection{
%  \let\insertsubsectionnumber\relax
%  \let\subsectionname\relax
%  \frame{\subsectionpage}
%}
%$endif$

$if(links-as-notes)$
% Make links footnotes instead of hotlinks:
\renewcommand{\href}[2]{#2\footnote{\url{#1}}}
$endif$
$if(strikeout)$
\usepackage[normalem]{ulem}
% avoid problems with \sout in headers with hyperref:
\pdfstringdefDisableCommands{\renewcommand{\sout}{}}
$endif$
\setlength{\parindent}{0pt}
\setlength{\parskip}{6pt plus 2pt minus 1pt}
\setlength{\emergencystretch}{3em}  % prevent overfull lines
\providecommand{\tightlist}{%
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
$if(numbersections)$
\setcounter{secnumdepth}{$if(secnumdepth)$$secnumdepth$$else$endif$}
$else$
\setcounter{secnumdepth}{0}
$endif$
$if(dir)$
\ifxetex
  % load bidi as late as possible as it modifies e.g. graphicx
  $if(latex-dir-rtl)$
  \usepackage[RTLdocument]{bidi}
  $else$
  \usepackage{bidi}
  $endif$
\fi
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
  \TeXXeTstate=1
  \newcommand{\RL}[1]{\beginR #1\endR}
  \newcommand{\LR}[1]{\beginL #1\endL}
  \newenvironment{RTL}{\beginR}{\endR}
  \newenvironment{LTR}{\beginL}{\endL}
\fi
$endif$
$for(header-includes)$
$header-includes$
$endfor$

$if(title)$
\title{$title$}
$endif$
$if(subtitle)$
\subtitle{$subtitle$}
$endif$
$if(author)$
\author{$for(author)$$author$$sep$ \and $endfor$}
$endif$
$if(institute)$
\institute{$for(institute)$$institute$$sep$ \and $endfor$}
$endif$
\date{$date$}
$if(titlegraphic)$
\titlegraphic{\includegraphics{$titlegraphic$}}
$endif$
$if(logo)$
\logo{\includegraphics{$logo$}}
$endif$

\begin{document}
$if(title)$
\frame{\titlepage}
$endif$

$for(include-before)$
$include-before$

$endfor$
$if(toc)$
\begin{frame}
\tableofcontents[hideallsubsections]
\end{frame}

$endif$
$body$

$if(natbib)$
$if(bibliography)$
$if(biblio-title)$
$if(book-class)$
\renewcommand\bibname{$biblio-title$}
$else$
\renewcommand\refname{$biblio-title$}
$endif$
$endif$
\begin{frame}[allowframebreaks]{$biblio-title$}
\bibliographytrue
\bibliography{$for(bibliography)$$bibliography$$sep$,$endfor$}
\end{frame}

$endif$
$endif$
$if(biblatex)$
\begin{frame}[allowframebreaks]{$biblio-title$}
\bibliographytrue
\printbibliography[heading=none]
\end{frame}

$endif$
$for(include-after)$
$include-after$

$endfor$
\end{document}

然后主 Rmd 文件就是:

my_rmarkdown.Rmd

---
output:
  beamer_presentation:
    theme: Madrid
    includes:
      in_header: my_header.tex
    template: my_template.tex
---

### Slide 1

\lipsum[1]

### Slide 2

\lipsum[2]
\appendix
\setcounter{framenumber}{2}

### First extension slide

\setcounter{framenumber}{1}
\lipsum[3]

### Second Extension Slide

\lipsum[4]

但是,如果我稍微更改主 Rmd 文件,我会得到奇怪的页数,我不明白如何使用 \setcounter{framenumber}{..} 来解决它。

具体来说,如果我在主体部分再添加一张Slide 3如下:

---
output:
  beamer_presentation:
    theme: Madrid
    includes:
      in_header: my_header.tex
    template: my_template.tex
---

### Slide 1

\lipsum[1]

### Slide 2

\lipsum[2]

### Slide 3

\lipsum[3]
\appendix
\setcounter{framenumber}{3}

### First extension slide

\setcounter{framenumber}{1}
\lipsum[3]

### Second Extension Slide

\lipsum[4]

我得到幻灯片计数 1/2、2/2、3/2、1/2、2/2。或者,如果我将第二个计数器设置为 \setcounter{framenumber}{2},我将得到:1/3、2/3、3/3、2/3、3/3。这稍微好一点,因为主要幻灯片至少是正确的。但我仍然想知道是否存在一种方法可以让主要和附录幻灯片编号正常工作?一般来说,每当附录幻灯片的数量和主幻灯片的数量不相等时,我只能算出两者中的一张。

  • 如果您的 beamer 版本足够新,则不需要 appendixnumberbeamer 包,而是可以使用内置选项 \setbeamertemplate{page number in head/foot}[appendixframenumber]

  • 从您的模板中删除ignorenonframetext

  • 并将附录放在帧之间:

    ---
    output:
      beamer_presentation:
        theme: Madrid
        includes:
          in_header: my_header.tex
        template: my_template.tex
        keep_tex: true
    ---
    
    ### Slide 1
    
    \lipsum[1]
    
    ### Slide 2
    
    \lipsum[2]
    
    ### Slide 3
    
    \lipsum[3]
    
    
    ``` {=latex}
    \end{frame}
    \appendix
    \begin{frame}{First extension slide}
    ```
    
    \lipsum[3]
    
    ### Second Extension Slide
    
    \lipsum[4]