创建 toc、lof 或 lot 等列表

Question 1

您或许可以使用 LaTeX2e-kernel-macros\@starttoc 和\addtocontents{<file-extension>}{<tokens>}。

\addtocontents当在 LaTeX 运行结束时处理辅助文件时，如果该文件已打开以供输入，则会将一些未扩展的写入指令（未扩展）写入辅助文件<tokens>。\jobname.<file-extension>

\@starttoc{<file-extension>}如果文件存在，将使 TeX 读取/处理该文件\jobname.<file-extension>，然后销毁该文件，然后重新创建它并打开它进行输入，以便在 LaTeX 运行结束时处理辅助文件时，该文件将打开进行输入。

如果你想做一些更奇特的事情，看看\addcontentslineLaTeX2e-kernel 的宏。

基本上，\addcontentsline{<file-extension>}{<command name>}{<tokens>}将向辅助文件写入一些指令，用于在 LaTeX 运行结束时处理辅助文件时，将未扩展的标记序列写入\contentsline{<command name>}{<tokens>}{<page number>}文件，以防该文件打开以供输入。在 LaTeX 运行结束时处理辅助文件期间写入后，您将在其中找到该指令。因此，当由于文件被读取/处理时，该指令将被执行。\jobname.<file-extension>\jobname.<file-extension>\contentsline{<command name>}{<tokens>}{<page number>}\@starttoc\jobname.<file-extension>

\contentsline{<command name>}{<tokens>}{<page number>}反过来会调用一个\l@<command name>处理两个参数的宏，即<tokens>-argument 和<page number>-argument。

当此机制与 toc-file 和 sectioning-commands 一起使用时，<command name>将类似于section或subsection产生宏的执行\l@section，或者\l@subsection但您也可以\l@..为自己的 rubrification 类别定义自己的宏。

\addtocontents...-机制\@starttoc{<file-extension>}确实在其他事物之下定义了控制序列\tf@<file-extension>。因此，为了查明该机制是否已经分配了\write用于写入文件的句柄\jobname.<file-extension>，您可以使用\@ifundefined- 宏来检查控制序列是否\tf@<file-extension>已定义。

但这只有在 scrwfile 包未使用时才有效——顺便说一句：如果您打算在文档中创建许多列表（如 toc、lof 或 lot），您可能会对 scrwfile 包感兴趣。有关该包的更多信息，请访问 CTAN：https://www.ctan.org/pkg/scrwfile

LaTeX2e 内核的解释和注释在文件 source2e.pdf 中，该文件位于https://www.ctan.org/pkg/source2e。- -
机制和利用该机制的 -macro 在名为文件 F ltsect.dtx → 59 分段命令 → 59.3 目录等的部分中进行了解释。\addtocontents\@starttoc\addcontentsline

\documentclass{article}
\usepackage{hyperref}
\usepackage{verbatim}
\makeatletter
\newcommand\l@songline[2]{%
  \par Now we have data about another song:\\
  Title of song: #1. Song is printed on page: #2.%
}%
\makeatother
\begin{document}
\LaTeX{} will now write directives to aux-file for writing the first
 line into \jobname.weird. These directives will be carried out at
 the end of the \LaTeX-run when the aux-file is read/processed in
 case at that time the file \jobname.weird is open for writing to it.\\
\addtocontents{weird}{First line in file \jobname.weird.}%
\bigskip

This is what \jobname.weird looks like before calling \verb|\@starttoc|:    \\
\verbatiminput{\jobname.weird}
\bigskip

This is how \verb|\l@songline| is defined:\\{%
  \csname verbatim@font\endcsname\selectfont
  \expandafter\meaning\csname l@songline\endcsname
}%
\bigskip

The file \jobname.weird is \csname @ifundefined\endcsname{tf@weird}{not}{already} allocated.
\bigskip

\LaTeX will now read/process \jobname.weird and then destroy that file
and create it anew and open it for writing. Thus at the end of the
\LaTeX-run, when the aux-file is read/processed, that file will be open
for writing to it:\bigskip

\csname @starttoc\endcsname{weird}%
\bigskip

The file \jobname.weird is \csname @ifundefined\endcsname{tf@weird}{not}{already} allocated.
\bigskip

\LaTeX{} will now write directives to aux-file for writing the second
line into \jobname.weird. These directives will be carried out at
the end of the \LaTeX-run when the aux-file is read/processed in
case at that time the file \jobname.weird is open for writing to it.\\
\addtocontents{weird}{Second line in file \jobname.weird.}%
\bigskip

Now two \verb|\addcontentsline|-entries for writing things to \jobname.weird
that need to be "rubrified" by means of applying the \verb|l@songgline|-macro.
\addcontentsline{weird}{songline}{Morning has broken}
\addcontentsline{weird}{songline}{Final Countdown}

\end{document}

Answer

您或许可以使用 LaTeX2e-kernel-macros\@starttoc 和\addtocontents{<file-extension>}{<tokens>}。