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tex4ebook：导入 titlesec 包时书签重复

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tex4ebook：导入 titlesec 包时书签重复

我正在使用 tex4ebook 生成 .epub，我需要使用 titlesec。当我编译文档时，我注意到如果我导入 titlesec 并编译多次，则章节和子章节的书签会重复。任何有关如何删除重复项的提示都将不胜感激。

麦格

\documentclass{book}

\usepackage{titlesec}

\begin{document}

\part{Mammalia}
\chapter{Monotremata}
\section{Platypoda}
\subsection{Ornithorhynchidae}
\subsubsection{Ornithorhynchus}
\paragraph{anatinus}
\section{Tachyglossa}
\subsection{Tachyglossidae}
\subsubsection{Tachyglossus}
\paragraph{aculeatus}

\end{document}

版本.mk4

local domfilter = require "make4ht-domfilter"
local filter = require "make4ht-filter"

local ncxprocess = domfilter {
  function(dom)
    for i, navpoint in ipairs(dom:query_selector("navPoint")) do
       local text = navpoint:query_selector("text")[1]:get_text():gsub("^%s*", ""):gsub("%s*$", ""):lower()
       if dom:query_selector("navPoint")[i+1] ~= nil then
         local next_nav = dom:query_selector("navPoint")[i+1]
         local next_text = next_nav:query_selector("text")[1]:get_text():gsub("^%s*", ""):gsub("%s*$", ""):lower()
         if next_text == text then
           navpoint:remove_node()
         end
       end
    end
    return dom
  end
}

Make:htlatex {}
Make:htlatex {}
Make:match("ncx$", ncxprocess)

注释掉 titlesec import 时的输出：

在此处输入图片描述

未导入 titlesec 时的 .ncx 文件：

<?xml version="1.0" encoding="utf-8"?> 
 <!DOCTYPE ncx PUBLIC "-//NISO//DTD ncx 2005-1//EN" 
"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd"> 
 <ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" version="2005-1">                                                                              <head> 
 <meta name="dtb:uid" content="http://example.com/mwe"/> 
 <meta name="dtb:depth" content="3"/> 
 <meta name="dtb:totalPageCount" content="0"/> 
 <meta name="dtb:maxPageNumber" content="0"/> 
 </head> 

<docTitle> 
<text>Unnamed</text> 
</docTitle> 
 <navMap>       
<navPoint id="navPoint-1" playOrder="1"> 
<navLabel> 
<text><navmark type="part">  I</navmark> Mammalia</text> 
</navLabel> 
<content src="mwepa1.html#x2-1000I" />        
<navPoint id="navPoint-2" playOrder="2"> 
<navLabel> 
<text><navmark type="chapter">  1</navmark> Monotremata</text> 
</navLabel> 
<content src="mwech1.html#x3-20001" />        
<navPoint id="navPoint-3" playOrder="3"> 
<navLabel> 
<text><navmark type="section">  1.1</navmark> Platypoda</text> 
</navLabel> 
<content src="mwech1.html#x3-30001.1" />
 
<navPoint id="navPoint-4" playOrder="4"> 
<navLabel> 
<text><navmark type="subsection">  1.1.1</navmark> Ornithorhynchidae</text> 
</navLabel> 
<content src="mwech1.html#x3-40001.1.1" />  </navPoint> 
</navPoint> 
     
<navPoint id="navPoint-5" playOrder="5"> 
<navLabel> 
<text><navmark type="section">  1.2</navmark> Tachyglossa</text> 
</navLabel> 
<content src="mwech1.html#x3-70001.2" />       
<navPoint id="navPoint-6" playOrder="6"> 
<navLabel> 
<text><navmark type="subsection">  1.2.1</navmark> Tachyglossidae</text> 
</navLabel> 
<content src="mwech1.html#x3-80001.2.1" />
   </navPoint> 
</navPoint> 
</navPoint> 
</navPoint> 
</navMap>

   </ncx>

导入titlesec时的输出：

在此处输入图片描述

导入 titlesec 时的 .ncx 文件：

   <?xml version="1.0" encoding="utf-8"?> 
 <!DOCTYPE ncx PUBLIC "-//NISO//DTD ncx 2005-1//EN" 
"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd"> 
 <ncx xmlns="http://www.daisy.org/z3986/2005/ncx/" version="2005-1">                                                                                  <head> 
 <meta name="dtb:uid" content="http://example.com/mwe"/> 
 <meta name="dtb:depth" content="3"/> 
 <meta name="dtb:totalPageCount" content="0"/> 
 <meta name="dtb:maxPageNumber" content="0"/> 
 </head> 
 <docTitle> 
<text>Unnamed</text> 
</docTitle> 

<navMap>     
<navPoint id="navPoint-1" playOrder="1"> 
<navLabel> 
<text><navmark type="part">  I</navmark> Mammalia</text> 
</navLabel> 
<content src="mwepa1.html#x2-1000I" />        
<navPoint id="navPoint-2" playOrder="2"> 
<navLabel> 
<text><navmark type="chapter">  1</navmark> Monotremata</text> 
</navLabel> 
<content src="mwech1.html#x3-20001" />        
<navPoint id="navPoint-3" playOrder="3"> 
<navLabel> 
<text><navmark type="section">  1.1</navmark> Platypoda</text> 
</navLabel> 
<content src="mwech1.html#x3-30001" />  </navPoint> 
      
<navPoint id="navPoint-4" playOrder="4"> 
<navLabel> 
<text><navmark type="section">  </navmark>
1.1                                                 Platypoda</text> 
</navLabel> 
<content src="mwech1.html#Q1-3-4" />       
<navPoint id="navPoint-5" playOrder="5"> 
<navLabel> 
<text><navmark type="subsection">  1.1.1</navmark>
Ornithorhynchidae</text> 
</navLabel> 
<content src="mwech1.html#x3-40001" /> </navPoint> 
     
<navPoint id="navPoint-6" playOrder="6"> 
<navLabel> 
<text><navmark type="subsection"> </navmark> 1.1.1
Ornithorhynchidae</text> 
</navLabel> 
<content src="mwech1.html#Q1-3-6" />     </navPoint> 
</navPoint> 
              
<navPoint id="navPoint-7" playOrder="7"> 
<navLabel> 
<text><navmark type="section">     1.2</navmark>   Tachyglossa</text> 
</navLabel> 
<content src="mwech1.html#x3-70002" />     </navPoint> 
              
<navPoint id="navPoint-8" playOrder="8"> 
<navLabel> 
<text><navmark type="section">     </navmark>
1.2                                                 Tachyglossa</text> 
</navLabel> 
<content src="mwech1.html#Q1-3-12" />      
<navPoint id="navPoint-9" playOrder="9"> 
<navLabel> 
<text><navmark type="subsection">  1.2.1</navmark>
Tachyglossidae</text> 
</navLabel> 
<content src="mwech1.html#x3-80001" />  </navPoint> 
     
<navPoint id="navPoint-10" playOrder="10"> 
<navLabel> 
<text><navmark type="subsection">  </navmark> 1.2.1
Tachyglossidae</text> 
</navLabel> 
<content src="mwech1.html#Q1-3-14" />
   </navPoint> 
</navPoint> 
</navPoint> 
</navPoint> 
</navMap>
   </ncx>

答案1

尝试这个版本titlesec.4ht：

% titlesec.4ht (2020-11-20-14:29), generated from tex4ht-4ht.tex
% Copyright 2000-2009 Eitan M. Gurari
% Copyright 2009-2020 TeX Users Group
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3c of this license or (at your option) any
% later version. The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions
% of LaTeX version 2005/12/01 or later.
%
% This work has the LPPL maintenance status "maintained".
%
% The Current Maintainer of this work
% is the TeX4ht Project <http://tug.org/tex4ht>.
%
% If you modify this program, changing the
% version identification would be appreciated.
\immediate\write-1{version 2020-11-20-14:29}

\ifx \ttl@assign@ii\:Undef
   \ifx \ttl@sect\:UnDef\else
     \pend:defII\ttl@sect{%
  \@ifstar {}{\SkipRefstepAnchor}}
\let\ttl:select=\ttl@select
\def\ttl@select#1#2#3#4#5{%
  \edef\sc:tp{\ifttl@label\else like\fi #1}\def\c:secnumdepth{#5}%
  \ttl:select{#1}{#2}{#3}{#4}{#5}}
\let\ttl@write\:gobbleIII

   \fi
   \ifx \ttl@useclass\:UnDef\else
     \pend:defII\ttl@useclass{%
  \@ifstar {}{\SkipRefstepAnchor}}
\let\ttl:select\ttl@select
\def\ttl@select#1{%
  \edef\sc:tp{\ifttl@label\else like\fi
             #1}\def\c:secnumdepth{\@nameuse{ttll@#1}}%
  \ttl:select{#1}}
\let\ttl@write\:gobbleII
\let\ttl@glcmds\relax
\let\ttl@beginlongest\@empty
\let\ttl@midlongest\@empty
\let\ttl@endlongest\@empty

   \fi
   \let\ttlh:hang\ttlh@hang
\def\ttlh@hang#1#2#3#4#5#6#7#8{%
   \HtmlEnv
   \expandafter\def\csname thetitle\sc:tp\endcsname{#2}%
   \csname no:\sc:tp\endcsname{#8}%
   \par \ttlh:hang{}{}{#3}{}{}{#6}{#7}{}}
\let\:seccntformat=\@seccntformat
\def\@seccntformat#1{\ifnum 0=0\the\csname c@#1\endcsname\else
   \:seccntformat{#1}\fi}

\else
   \let\ttl:straight@i\ttl@straight@i
\def\ttl@straight@i#1[#2]#3{%
  \gdef\NR:Title{\a:newlabel{#3}}%
%
  \ifttl@label \else
     \def\:temp{#1}\edef\:tempa{\expandafter
    \expandafter\expandafter\:gobble
    \expandafter\string\csname section\endcsname}\ifx \:temp\:tempa \else
       \edef\:tempa{\expandafter\expandafter\expandafter\:gobble
  \expandafter\string\csname subsection\endcsname}\ifx \:temp\:tempa \else
     {\ttl@labeltrue \ttl@addcontentsline{like#1}{#3}}%
\fi
%
\fi
%
  \fi
  \edef\sc:tp{\ifttl@label\else like\fi #1}%
  \ttl:straight@i{#1}[{#2}]{#3}%
}
\def\ttlh@hang#1#2#3#4#5#6#7#8{%
   \def\c:secnumdepth{\@nameuse{ttll@\sc:tp}}%
   \:StartSec {\sc:tp}{%
         \ifttl@label \ifnum \c:secnumdepth >\c@secnumdepth
         \else \csname the\sc:tp\endcsname \fi \fi
       }{#8}%
}
\def\:tempc#1#2#3#4{%
  \begingroup
  \let\everypar\@gobble% don't let titlesec to break our paragraph handling
  \edef\sc:tp{\ifttl@label\else like\fi #1}%
   \let\ttl@savewrite\empty
   \o:ttl@select:{#1}{#2}{#3}{#4}
   \endgroup
}

\HLet\ttl@select\:tempc
\let\ttlh@runin\ttlh@hang
\let\ttlh@display\ttlh@hang

\fi
\def\ttl@addcontentsline#1#2{%
  \nobreak}
\Hinput{titlesec}
\endinput

Titlesec 似乎将每个节或小节（而不是章节或部分）明确添加到目录中，但 TeX4ht 也这样做，因此您会得到重复的条目。

我们可以使用以下重新定义来禁用将它们添加到 TOC 的 Titlesec 代码：

\def\ttl@addcontentsline#1#2{%
  \nobreak}

在此处输入图片描述

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