tex4ht 标题问题：未定义控制序列

Question

即使使用，我也无法编译您的示例pdflatex，它会失败并显示以下消息：

dpfloat moved a leftpage float from page 3. ! Output loop---100
consecutive dead cycles. \AP@clearpage ...e \m@ne {}\vbox {}\penalty
-\@Mi

因此我创建了一个更简单的例子来展示同样的问题：

\documentclass{article}
\usepackage{graphicx}
\usepackage{caption}
\begin{document}
\begin{figure}
  \includegraphics{example-image.png}
    \captionsetup{font = Large, labelfont=Large, singlelinecheck = false, format= hang, labelsep=space, justification=centering} %justification=justified
  \caption*{Hello, caption}
\end{figure}

\end{document}

此文件导致 TeX4ht 失败。要修复此问题，我们需要更新两个支持文件。

第一个是usepackage.4ht。此文件用于在加载软件包时对其进行修补：

% usepackage.4ht (2020-04-23-13:56), generated from tex4ht-4ht.tex
% Copyright 2003-2009 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 2020-04-23-13:56}

   \def\:temp{tex4ht}\ifx \:temp\@currname
   \:warning{\string\usepackage{tex4ht} again?}
   \def\:temp#1htex4ht.def,tex4ht.sty#2!*?: {\def\:temp{#2}}
\expandafter\:temp \@filelist htex4ht.def,tex4ht.sty!*?: %
\ifx \:temp\empty  \else
   \:warning{if
    \string\RequirePackage[tex4ht]{hyperref} or
    \string\usepackage[tex4ht]{hyperref} was
    used try instead, repectively,
    \string\RequirePackage{hyperref} or
    \string\usepackage{hyperref}}
\fi

\fi
\gdef\a:usepackage{\use:package cleveref,xr,xr-hyper,eso-pic,showframe,expl3,savetrees,biblatex,xeCJK,polyglossia,fontspec,tikz,pdfbase,caption,graphics,xcolor,imakeidx,minted,fancyhdr,,!*?: }
\gdef\use:package#1,{%
   \if :#1:\def\:temp##1!*?: {}\else
      \def\:temp{#1}\ifx \@currname\:temp
             \def\:temp##1!*?: {\input usepackage.4ht  }%
      \else \let\:temp=\use:package \fi
   \fi \:temp}
\def\:temp{cleveref}\ifx\@currname\:temp
\let\HyOrg@addtoreset\@addtoreset
\fi
\def\:temp{xr}\ifx \@currname\:temp
   \:AtEndOfPackage{\let\XR:\XR@
   \def\XR@[#1]#2{%
    \Configure{AtBeginDocument}{\XR:[#1]{#2}}{}}%
}

\fi
\def\:temp{xr-hyper}\ifx \@currname\:temp
   \:AtEndOfPackage{\let\XR:\XR@
    \def\XR@[#1][#2]#3{%
      \AtBeginDocument{\XR:[#1][#2]{#3}}
    }%
}

\fi
\def\:temp{eso-pic}\ifx \@currname\:temp
\:dontusepackage{eso-pic}
\newcommand\AddToShipoutPicture{\@ifstar{}{}}
\let\AddToShipoutPictureBG\AddToShipoutPicture
\let\AddToShipoutPictureFG\AddToShipoutPicture
\fi
\def\:temp{showframe}\ifx \@currname\:temp
\:dontusepackage{showframe}
\fi
\def\:temp{expl3}\ifx \@currname\:temp
\ifdefined\XeTeXversion%
\xenunidelblock{Latin-expl3}%
\:AtEndOfPackage{\xeuniuseblock{Latin-expl3}}
\fi
\fi
\def\:temp{savetrees}\ifx \@currname\:temp
\:dontusepackage{savetrees}
\fi
\def\:temp{biblatex}\ifx \@currname\:temp
\:AtEndOfPackage{%
  \def\blx@mknoautolang{%
    \blx@lbxinput{\blx@languagename}%
    {}{}%
  }%
  \def\blx@lbxinput@iii#1#2{%
  \global\csundef{blx@lng@#2}%
  \:IfFileExists{#1.lbx}
    {\blx@lbxinput@iv{#2}{#1}{language '#2' -> '#1'}}
    {\ifcsdef{blx@suffmaptried@#2}
      {}
      {\blx@warning@noline{%
          File '#1.lbx' not found!\MessageBreak
          Ignoring mapping '#2' -> '#1'}%
       \global\cslet{blx@suffmaptried@#2}\@empty}%
     \blx@lbxinput@iv{#2}{#2}{language '#2'}}}

}
\fi
\def\:temp{xeCJK}\ifx \@currname\:temp
\:dontusepackage{xeCJK}
\:AtEndOfPackage{%
  \RequirePackage{fontspec}
}
\DeclareDocumentCommand\setCJKmainfont{o m o}{}
\let\setCJKsansfont\setCJKmainfont
\let\setCJKmonofont\setCJKmainfont

\DeclareDocumentCommand\setCJKfamilyfont {m o m }{}
\DeclareDocumentCommand\newCJKfontfamily {o m o m}{\expandafter\gdef\csname #2\endcsname{\relax}}

\DeclareDocumentCommand\xeCJKsetup{m}{}
% }
\AtBeginDocument{%
  \xeuniuseblock{CJK}
}
\fi
\def\:temp{polyglossia}\ifx \@currname\:temp
\ExplSyntaxOn
\:AtEndOfPackage{

\cs_set_eq:NN\orig_polyglossia@keys_define_lang:n\polyglossia@keys_define_lang:n
\cs_set_protected:Npn \polyglossia@keys_define_lang:n #1 {
  \orig_polyglossia@keys_define_lang:n{#1}
  \keys_define:nn {polyglossia}{
    #1 / direction
    .  code:n = {}
  }
}
\def\RequireBidi{}%
}
\ExplSyntaxOff
\fi
\def\:temp{fontspec}\ifx \@currname\:temp
  \ifdefined\fontspec
    \:dontusepackage{fontspec}
  \else
    \input usepackage-fontspec.4ht
  \fi
\fi
\def\:temp{tikz}\ifx \@currname\:temp
\:AtEndOfPackage{%
\let\use:tikzlibrary\usetikzlibrary
\def\find:externalize#1external#2\@nil{%
\if\relax#2\relax\else
  \let\tikz:externalize\tikzexternalize
  \renewcommand\tikzexternalize[1][]{\tikz:externalize[##1,mode=only graphics]}
    \tikzset{%
      tex4ht inc/.style={%
        /pgf/images/include external/.code={%
          \includegraphics[]{####1.pdf}%
        }%
      }
    }
    \tikzset{tex4ht inc}
  \fi
}
\append:defI\use@@tikzlibrary{\find:externalize##1external\@nil}%
}
\fi
\def\:temp{pdfbase}\ifx\@currname\:temp
\:AtEndOfPackage{%
  \let\old:outputpage\@outputpage
  \def\@outputpage{\old:outputpage{}}
}
\fi
\def\:temp{caption}\ifx\@currname\:temp
\:AtEndOfPackage{%
  \long\def\caption@If@Package@Loaded#1[#2]#3#4{}
  %\renewcommand*\caption@redefine{}
    \renewcommand*\caption@redefine{%
      \let\caption\caption@caption
      \let\@caption\caption@@caption%
  }%
}
\fi
\def\:temp{graphics}\ifx\@currname\:temp
  \ifdefined\XeTeXversion
    \PassOptionsToPackage{dvips}{graphics}
  \fi
\fi
\def\:temp{xcolor}\ifx\@currname\:temp
  \ifdefined\XeTeXversion
    \PassOptionsToPackage{dvips}{xcolor}
  \fi
\fi
\def\:temp{imakeidx}\ifx\@currname\:temp
  \PassOptionsToPackage{noautomatic}{imakeidx}
\fi
\def\:temp{minted}\ifx\@currname\:temp
  \:AtEndOfPackage{%
    \define@booleankey{minted@opt@g}{breaklines}{}{}{}%
  }
\fi
\def\:temp{fancyhdr}\ifx\@currname\:temp
  \:AtEndOfPackage{%
  \def\ps@fancy{}%
  }
\fi


\endinput

重要的部分是这样的：

\def\:temp{caption}\ifx\@currname\:temp
\:AtEndOfPackage{%
  \long\def\caption@If@Package@Loaded#1[#2]#3#4{}
  \renewcommand*\caption@redefine{%
      \let\caption\caption@caption
      \let\@caption\caption@@caption%
  }%
}
\fi

这修复了致命错误。

接下来，我们需要提供定制的定义来正确支持带星号的命令版本\caption。

另存为caption.4ht：

% caption.4ht (2020-05-22-14:40), generated from tex4ht-4ht.tex
% Copyright 2007-2009 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.
\let\sv:toclof\toclof
\def\toclof#1#2#3{%
   \bgroup
     \def\a:TocLink##1##2##3##4{\gdef\:temp{##4}}%
     #2%
   \egroup
   \ifx \:temp\empty \else
      \sv:toclof{#1}{#2}{#3}%
   \fi
}
\let\lof:ConfigureToc\ConfigureToc
\long\def\ConfigureToc#1#2#3#4#5{%
   \lof:ConfigureToc{#1}{#2}{#3}{#4}{#5}%
   \def\:temp{#1}\def\:tempa{lof}\ifx \:temp\:tempa
      \let\toc:lof\toclof
      \def\toclof##1##2##3{%
         \bgroup
           \def\a:TocLink####1####2####3####4{\gdef\:temp{####4}}%
           ##2%
         \egroup
         \ifx\:temp\empty\else
            \toc:lof {##1}{##2}{##3}%
         \fi
   }\fi%
}

\long\def\@makecaption#1#2{%
  \caption@make@above%
  \cptA:\caption@@make{\cap:ref{#1}\if :#1:\else\cptB:\fi}{\cptC:#2}\cptD:%
  \caption@make@below%
}

\Hinput{caption}
\endinput

它包含命令的修改版本\@makecaption：

\long\def\@makecaption#1#2{%
  \caption@make@above%
  \cptA:\caption@@make{\cap:ref{#1}\if :#1:\else\cptB:\fi}{\cptC:#2}\cptD:%
  \caption@make@below%
}

\cptA:和其他名称中包含字符的命令用于:插入 HTML 标签。

结果如下：

这些文件也适用于您的原始文件，但我无法判断结果是否正确，因为我无法编译 PDF 版本。

Answer 1