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\preindexhook 使用数学方法将括号改为间距命令

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\preindexhook 使用数学方法将括号改为间距命令

在一本书长度的文档中memoir，我得到了以下内容特殊输出从此代码开始索引：

\renewcommand{\indexname}{Index}
\renewcommand{\preindexhook}{%
\emph{%
For $d$\emph{-ball},  $d$\emph{-bounded set}, $d$\emph{-open set},  $(d,d')$\emph{-continuous map}, 
etc., see the corresponding entry \emph{ball}, \emph{bounded set}, \emph{open set}, \emph{continuous map}, etc.%
\vskip\onelineskip}%
}
\printindex\cleardoublepage%

\preindexhook arg 中的括号是否更改为 dims？

令人惊讶的是，不仅左括号和右括号$(d,d')$\emph{-continuous map}消失了，而且它们被替换为-.04em和-.15em， 分别。

无论我使用pdflatex或 ，都会出现奇怪的输出（如下例所示，它决定使用哪种字体）；因此/和/xelatex都会发生错误。newtxtextnewtxmathTeX Gyre TermesTex Gyre Termes Math

本书实际环境：

我正在使用 MacTeX/TeXLive 2020，并应用了所有当前更新。

通常，我只需在 TeXShop.app 中使用引擎 pdflatexmk 对根源文件运行“Typeset” topology.tex。效果应该与连续运行相同：

pdflatex topology
bibtex topology
pdflatex topology
pdflatex topology
makeindex topology.nlo -s topology.ist -o topology.nls
makeindex names.idx -s names.ist -o names.ind
makeindex -s topology.ist topology
pdflatex topology
pdflatex topology

.ind以下是本书文件的开头：

\begin{theindex}
\begingroup
  \medskip\hfill\large\sffamily\bfseries\ifthenelse{\boolean{colorsecs}}{\color{myseccolor}}{} A\hfill\endgroup\medskip\nopagebreak

\item \idxmark{absolute-value function}, \hyperpage{17}, 
        \hyperpage{323}
\item \idxmark{abstract quotient map}, \hyperpage{419}

问题：该怎么解决呢？

修复尝试失败：

以下尝试未能解决该问题：

  • \protect每个括号
  • \usepackage{ragged2e)并更改\renewcommand{\preindexhook}{...为\renewcommand{\preindexhook}{\RaggedRight...
  • 分别将(和替换为和（来自）)\lparens\rparensmathtools
  • 删除\,自$(d,\,d')$

简单的例子？

我无法在任何简单的例子中重现该输出缺少整本 600 多页的书！

下面是一个例子，其中输出正常，但包含所有相关代码（我希望）以及可能一些完全不相关的代码（但包括“以防万一”）：

% book.tex

\RequirePackage{filecontents}
\begin{filecontents}{book.ist}
% book.ist -  MakeIndex style file
% output main entry <entry> as: \item \idxmark{<entry>}, 
item_0  "\n\\item \\idxmark{"
delim_0 "}, "
% not forgetting the subitem case
item_x1 "} \n \\subitem "
headings_flag 1
heading_prefix "{\\medskip\\hfill\\large\\textsf{\\textbf{"
heading_suffix "}}\\hfill}\\medskip\\nopagebreak\n"
\end{filecontents}

\documentclass{memoir}

\RequirePackage[T2A,T1]{fontenc}
\RequirePackage{amsmath} % avoid \dddot clash
\RequirePackage{mathtools} % load now to avoid unicode-math clash
\RequirePackage{amsthm} % load now to avoid openbox clash
\usepackage{iftex}

\ifTUTeX
  \usepackage{fontspec}
  \usepackage{polyglossia}
  \usepackage{unicode-math}
  \setdefaultlanguage[variant=american]{english}
  \setotherlanguages{french,german,polish,russian}
  \setmainfont{TeX Gyre Termes}[Scale=1.0]
  \defaultfontfeatures{Scale=MatchLowercase, Ligatures=TeX}
  \setmathfont{TeX Gyre Termes Math}
  \newfontfamily{\cyrillicfont}{PT Serif}
  \newcommand{\textsi}[1]{\textsc{#1}}
  \newfontfamily{\xcheckmarkfont}{LibertinusSerif-Regular.otf}
\else
  \usepackage[russian,french,ngerman,polish,main=english]{babel}
  \babeltags{russian=russian,french=french,german=ngerman,polish=polish}
  \RequirePackage{substitutefont}   % to allow non-default Cyrillic
  \substitutefont{T2A}{\rmdefault}{Tempora-TLF} % for Cyrillic
  \RequirePackage[theoremfont]{newtxtext}
  \RequirePackage[vvarbb]{newtxmath}%
\fi  

% Additional font series macros
% light series
\DeclareRobustCommand\ltseries
  {\not@math@alphabet\ltseries\relax
   \fontseries\ltdefault\selectfont}
%
\newcommand{\ltdefault}{l}
%
\DeclareTextFontCommand{\textlt}{\ltseries}
% heavy(bold) series
\DeclareRobustCommand\hbseries
  {\not@math@alphabet\hbseries\relax
   \fontseries\hbdefault\selectfont}
\newcommand{\hbdefault}{hb}
\DeclareTextFontCommand{\texthb}{\hbseries}

\usepackage{microtype}
\usepackage{ragged2e}

%% PAGE DIMENSIONS
\setstocksize{11in}{8.5in}
\setpagecc{55.25pc}{38pc}{*}
\settypeblocksize{45pc}{28pc}{*}
\setlrmargins{*}{*}{*}
\setulmargins{*}{*}{*}
\checkandfixthelayout

%% PENALTIES
% set \clubpenalty, etc. to distinctive values for use
 % in tracing page breaks.
 \clubpenalty=9996
 \widowpenalty=9999
 \brokenpenalty=4991
 \predisplaypenalty=10000
 \postdisplaypenalty=1549
 \displaywidowpenalty=1602

\nouppercaseheads
\makepagestyle{mypage} 
\makeheadrule{mypage}{\textwidth}{\normalrulethickness}
\makeevenhead{mypage}{\bfseries\sffamily\thepage}{}{\bfseries\sffamily\leftmark}
\makeoddhead{mypage}{\bfseries\sffamily\rightmark}{}{\bfseries\sffamily\thepage} 
\addtopsmarks{mypage}{}{%
  % insert "Chapter\space" & "Section\space" if desired as 4th argument:
  \createmark{chapter}{left}{shownumber}{}{\enspace} 
  \createmark{section}{right}{shownumber}{}{\enspace}
}
\makepsmarks{mypage}{%
  \createmark{chapter}{both}{shownumber}{}{\enspace} % use both not left
  \createmark{section}{right}{shownumber}{}{\enspace}
  \createplainmark{toc}{both}{\contentsname}
    \createplainmark{shorttableofconents}{both}{\shorttocname}
      \createplainmark{longtableofcontents}{both}{\longtocname}
  \createplainmark{lof}{both}{\listfigurename}
  \createplainmark{lot}{both}{\listtablename}
  \createplainmark{bib}{both}{\bibname}
  \createplainmark{index}{both}{\indexname}
  \createplainmark{glossary}{both}{\glossaryname}
  \createplainmark{nomenclature}{both}{\nomname}
}
\providecommand\gobbleone[1]{}
\newcommand{\idxmark}[1]{{\let\gobbleone\relax\markboth{\sffamily\bfseries#1}{\sffamily\bfseries#1}}#1}
\makepagestyle{index}
\makeheadrule{index}{\textwidth}{\normalrulethickness}
% Fix for babel error by daleif (Lars Madsen}
% https://tex.stackexchange.com/a/501483/13492
\makeevenhead{index}%
{\let\gobbleone\relax\sffamily\bfseries\rightmark}%
{\sffamily\bfseries\MakeTextUppercase{\indexname}}%
{\let\gobbleone\relax\sffamily\bfseries\leftmark}
\makeoddhead{index}%
{\let\gobbleone\relax\sffamily\bfseries\rightmark}%
{\sffamily\bfseries\MakeTextUppercase{\indexname}}%
{\let\gobbleone\relax\sffamily\bfseries\leftmark}
\makeevenfoot{index}{}{\sffamily\thepage}{}
\makeoddfoot{index}{}{\sffamily\thepage}{}  

\makechapterstyle{mychapter}{%
  \renewcommand{\chapnamefont}{\sffamily\bfseries}
  \renewcommand{\chapnumfont}{\fontsize{58}{64}\selectfont\sffamily\bfseries}
  \renewcommand{\chaptitlefont}{\Huge\sffamily\bfseries}
  %
  \settoheight{\midchapskip}{\chapnumfont 1}
  \setlength{\midchapskip}{0pt}
  \setlength{\afterchapskip}{48pt}
  %
  \renewcommand{\printchaptername}{%
  \chapnamefont\centering\MakeUppercase{\@chapapp}\par}
  %
  \renewcommand*{\printchapternum}{%
  \vskip -8pt\centering \chapnumfont\thechapter} % or omit the vskip?
  %
  \renewcommand{\afterchapternum}{%
  \par\nobreak\vskip \midchapskip%
  \centering\rule{0.825\textwidth}{\normalrulethickness}%
  \newline}
  \renewcommand{\printchaptertitle}[1]{\centering\chaptitlefont ##1}
}
\chapterstyle{mychapter}

\usepackage{blindtext}

\makeindex

\begin{document}

\mainmatter

\pagestyle{mypage}

\Blindtext[1]

Alpaca\index{abc}
Zebra\index{zombie}% to fill up index page...
    \index{a}\index{aa}\index{aaa}\index{aaaa}\index{aaaaa}\index{aaaaaa}\index{aaaaaaa}\index{aaaaaaaa}
    \index{b}\index{bb}\index{bbb}\index{bbbb}\index{bbbbb}\index{bbbbbb}\index{bbbbbbb}\index{bbbbbbbb}
    \index{c}\index{cc}\index{ccc}\index{cccc}\index{ccccc}\index{cccccc}\index{ccccccc}\index{cccccccc}
    \index{d}\index{dd}\index{ddd}\index{dddd}\index{ddddd}\index{dddddd}\index{ddddddd}\index{dddddddd}
    \index{e}\index{ee}\index{eee}\index{eeee}\index{eeeee}\index{eeeeee}\index{eeeeeee}\index{eeeeeeee}
    \index{f}\index{ff}\index{fff}\index{ffff}\index{fffff}\index{ffffff}\index{fffffff}\index{ffffffff}
    \index{g}\index{gg}\index{ggg}
    \index{abcdefghijklmnopqustuvwxyzabcdef}
    \index{zbcdefghijklmnopqustuvwxyzabcdef}


\backmatter

\pagestyle{index}

\setlength{\columnsep}{1em}
\renewcommand{\indexname}{Index}
\renewcommand{\preindexhook}{%
\emph{%
For $d$\emph{-ball}, $d$\emph{-bounded set}, $d$\emph{-open set},  $(d,\,d')$\emph{-continuous map}, 
etc., see the corresponding entry \emph{ball}, \emph{bounded set}, \emph{open set}, \emph{continuous map}, etc.%
\vskip\onelineskip}%
}
\printindex\cleardoublepage%

\end{document}

添加：

我还尝试在上面的“简单示例”中用我的书本长度文档的实际序言替换序言（实际上，输入的.tex文件包含构成我的序言的几个文件的一系列\usepackage命令 - 总共 16 个文件，大约 120K）。但这仍然不会导致奇怪的问题！

可能的解决方法：

以下解决方法似乎可以解决问题。但我对伪造括号的方式感到不满意，而括号实际上应该位于内联数学中！

\renewcommand{\preindexhook}{%
\emph{%
For $d$\emph{-ball},  $d$\emph{-bounded set}, $d$\emph{-open set}, \emph{(}$d,d'$\emph{)\hspace{2pt}-continuous map}, 
etc., 
see the corresponding entry \emph{ball}, \emph{bounded set}, \emph{open set}, \emph{continuous map}, etc.%
\vskip\onelineskip}%
}

答案1

这是 embrac 中的一个错误，在一个地方它使用了#4而不是#3。尝试这样做并通知作者：

\usepackage{embrac}
\ExplSyntaxOn
\cs_set_protected:Npn \__embrac_replace:Nnnnn #1#2#3#4#5
  {
    \tl_replace_all:Nnn #1 {#3}
      {
        \mode_if_math:TF
          {#3} %<---instead of #4
          {
            \embrac_nobreak:
            \embrac_kern:n {#2}
            \embrac_nobreak:
            \embrac_braces_format:n {#3}
            \embrac_nobreak:
            \embrac_kern:n {#4}
            #5
          }
      }
  }
\ExplSyntaxOff

答案2

这不是问题的答案，而是对实际问题的简短描述。它与memoir或无关，归根结底是@murray 在其许多安装文件中加载的软件包的\preindexhook问题。embrac

这是一个显示问题的超短 MWE。

\documentclass{article}
\usepackage{embrac}
\begin{document}
\emph{$(d,d')$}
\end{document}

在我完全更新的 TeXLive 2020 上，我得到了

在此处输入图片描述

这很奇怪，因为embrac历史记录提到 v0.5 是为了不弄乱数学而制作的。但也许expl3被改变了。

*File List*
 article.cls    2019/12/20 v1.4l Standard LaTeX document class
  size10.clo    2019/12/20 v1.4l Standard LaTeX file (size option)
  embrac.sty    2019/12/31 v0.9 Upright Brackets in Emphasized Text
   expl3.sty    2020-07-17 L3 programming layer (loader) 
l3backend-pdfmode.def    2020-06-29 L3 backend support: PDF mode
  xparse.sty    2020-05-15 L3 Experimental document command parser
xparse-generic.tex
l3keys2e.sty    2020-05-15 LaTeX2e option processing using LaTeX3 keys

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