% \iffalse meta-comment
% tocbibind.dtx
% Author: Peter Wilson, Herries Press
% Maintainer: LaTeX Team https://github.com/LaTeX-Package-Repositories/herries-press}
% Copyright 1998--2004 Peter R. Wilson
%           2009—-2026 Will Robertson
%           2026       LaTeX Project Team
%
% 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: <http://www.latex-project.org/lppl.txt>
%
% This work has the LPPL maintenance status "maintained".
% The Current Maintainer of this work is Will Robertson.
%
% This work consists of the files listed in the README file.
%
%
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%
% \changes{v1.0}{1998/10/24}{First public release}
% \changes{v1.1}{1998/11/15}{Added the proc class and extra support for unknown classes}
% \changes{v1.2}{1999/01/17}{Using the stdclsdv package}
% \changes{v1.2}{1999/01/17}{Made compatible with the tocloft package}
% \changes{v1.3}{1999/08/22}{Fixed index numbering, options, headings}
% \changes{v1.3a}{1999/09/12}{Added PackageNote commands}
% \changes{v1.4}{2000/03/04}{Fixed shift of Index title}
% \changes{v1.4}{2000/03/04}{Added support for numbered Listof headings}
% \changes{v1.4a}{2000/03/04}{Added delimeter for simple chapters}
% \changes{v1.5}{2001/04/17}{Fixed \cs{addcontentsline} problem with hyperref package}
% \changes{v1.5}{2001/04/17}{Removed requirement for the stdclsdv package}
% \changes{v1.5a}{2001/08/07}{Made \cs{restorechapter} safer}
% \changes{v1.5b}{2001/11/10}{Fiddled with page styling}
% \changes{v1.5c}{2002/03/11}{Fixed \cs{@mkboth}}
% \changes{v1.5d}{2002/04/09}{Fixed \cs{tocchapter} for article classes}
% \changes{v1.5e}{2003/01/22}{Changed thebibliography}
% \changes{v1.5f}{2003/02/04}{Changed theindex}
% \changes{v1.5h}{2004/05/10}{Changed license from LPPL v1.0 to v1.3}
% \changes{v1.5i}{2009/09/04}{New maintainer (Will Robertson)}
% \changes{v1.5k}{2010/10/13}{Remove a message in the console output}
%
% \def\dtxfile{tocbibind.dtx}
% \def\fileversion{v1.4a} \def\filedate{2000/03/05}
% \def\fileversion{v1.5}  \def\filedate{2001/04/17}
% \def\fileversion{v1.5a} \def\filedate{2001/08/07}
% \def\fileversion{v1.5b} \def\filedate{2001/11/10}
% \def\fileversion{v1.5c} \def\filedate{2002/03/11}
% \def\fileversion{v1.5d} \def\filedate{2002/04/09}
% \def\fileversion{v1.5e} \def\filedate{2003/01/22}
% \def\fileversion{v1.5f} \def\filedate{2003/02/04}
% \def\fileversion{v1.5g} \def\filedate{2003/03/13}
% \def\fileversion{v1.5h} \def\filedate{2004/05/10}
% \def\fileversion{v1.5i} \def\filedate{2009/09/04}
% \def\fileversion{v1.5j} \def\filedate{2009/12/28}
% \def\fileversion{v1.5k} \def\filedate{2010/10/13}
% \def\fileversion{v1.5l} \def\filedate{2026/06/01}
% \newcommand*{\Lpack}[1]{\textsf {#1}}           ^^A typeset a package
% \newcommand*{\Lopt}[1]{\textsf {#1}}            ^^A typeset an option
% \newcommand*{\Lcount}[1]{\textsl {\small#1}}    ^^A typeset a counter
% \newcommand*{\pstyle}[1]{\textsl {#1}}          ^^A typeset a pagestyle
% \newcommand*{\Lenv}[1]{\texttt {#1}}            ^^A typeset an environment
%
% \title{The \Lpack{tocbibind} package\thanks{This
%        file (\texttt{\dtxfile}) has version number \fileversion, last revised
%        \filedate.}}
%
% \author{
%  Author: Peter Wilson, Herries Press\\
%  Maintainer: \LaTeX{} Project team\\
%  \url{https://github.com/LaTeX-Package-Repositories/herries-press}%
% }
% \date{\filedate}
% \maketitle
% \begin{abstract}
%    The \Lpack{tocbibind} package can be used to add document elements
% like a bibliography or an index to the Table of Contents. The package
% is designed to work with the four standard \Lpack{book}, \Lpack{report},
% \Lpack{article} and \Lpack{proc} classes, and to a limited extent with the
% \Lpack{ltxdoc} class. Results with other classes may be
% problematical. The package has been tested with the \Lpack{tocloft}
% package, but has not been tested with other packages
% that change the definitions of the |\chapter*| or |\section*| commands.
%
% \end{abstract}
% \tableofcontents
%
% \StopEventually{}
%
%
%
% \section{Introduction}
%
% Questions about adding the bibliography to the Table of Contents
% seem to pop up fairly regularly on the
% \texttt{comp.text.tex} newsgroup.
%
%  The \Lpack{tocbibind} package provides a solution for
% automatically inserting references to a bibliography or an index,
% or other headed document elements into the Table of Contents.
% (\Lpack{tocbibind} is meant to be shorthand for `Table of Contents,
% Bibliography, Index, etc.').
% Portions of the package were developed as part of a class
% and package bundle for typesetting ISO standards~\cite{PRW96i}.
% This manual is typeset according to the conventions of the
% \LaTeX{} \textsc{docstrip} utility which enables the automatic
% extraction of the \LaTeX{} macro source files~\cite{GOOSSENS94}.
%
%    Section~\ref{sec:usc} describes the usage of the package.
% Commented source code for the package is in Section~\ref{sec:code}.
%
% \section{The \Lpack{tocbibind} package} \label{sec:usc}
%
%    The \Lpack{tocbibind} package enables the titles of the
% Table of Contents, the List of Figures, the List of Tables, the
% Bibliography and the Index all to be added to the Table of Contents.
%    By default, all of these document elements, if they exist, will be
% incorporated into the Table of Contents (ToC for short).
%    Package options are available to switch off any of these inclusions.
% \begin{itemize}
% \item \Lopt{notbib} Disables the inclusion of the Bibliography.
% \item \Lopt{notindex} Disables the inclusion of the Index (inclusion
%       of the Index of an \Lpack{ltxdoc} class document is permanently
%       disabled).
% \item \Lopt{nottoc} Disables the inclusion of the ToC.
% \item \Lopt{notlot} Disables the inclusion of the List of Tables.
% \item \Lopt{notlof} Disables the inclusion of the List of Figures.
% \item \Lopt{chapter} Use chapter-level headings, if possible.
% \item \Lopt{section} Use section-level headings, if possible.
% \item \Lopt{numbib} Number the Bibliography heading (default is no number).
% \item \Lopt{numindex} Number the Index heading (default is no number).
% \item \Lopt{other} Use a non-traditional heading command. This option
% effectively requires the use of the |\tocotherhead| command.
% \item \Lopt{none} Disables everything.
% \end{itemize}
%
%    The package is designed to work with the standard \LaTeX{}
% document classes \Lpack{book}, \Lpack{report}, \Lpack{article}, \Lpack{proc}
% and \Lpack{ltxdoc} class (which is based to a large extent on
% the \Lpack{article} class).
% In the \Lpack{article}, \Lpack{proc} and \Lpack{ltxdoc} classes \LaTeX{}
% uses the |\section*| heading
% style for the bibliography etc., while for the other two classes
% it uses the |\chapter*| heading style. \Lpack{tocbibind} honours
% these conventions. However, if the package is used with another
% class (perhaps with a class for typesetting theses which has
% different conventions), then the
% \Lopt{chapter} or \Lopt{section} options can be used to select the
% appropriate style (but the class must define |\chapter*| and
% |\@makeschapterhead|, or |\section*| respectively).
%
% The standard classes, except for \Lpack{ltxdoc}, have a feature whereby the
% height of the title for an index is at a different height than
% any other in a document (latex bug~3126). The \Lpack{tocbibind} package
% disables this feature.
% The disablement has the side effect that
% the |\columnseprule| and |\columnsep| lengths can be
% set via |\setlength| to alter the column separation and the thickness
% of a rule between the two columns in the index.
% The effect of using the \Lopt{none} option is to limit any changes to
% the single one of disabling this standard feature.
%
% \DescribeMacro{\tocotherhead}
%  In the standard \LaTeX{} classes the bibliography and index headings
% are either both defined in terms of the |\chapter*| command or in
% terms of the |\section*| command.
%  The package assumes that any class, other than the standard classes
% already mentioned, will either use code from the standard classes for
% implementing the bibliography and other headings, or will use very
% similar code. Some classes (and maybe packages) change the names of
% the heading commands. One example that I am aware of uses |\clause|
% instead of |\section|, |\sclause| instead of |\subsection| and so on.
% If your document's headings are defined like this and the same
% heading level is used for the bibliography, etc., then you can use
% the \Lopt{other} option and
% the |\tocotherhead{|\meta{headingname}|}| command to cater for this.
% If your document uses |\clause| then put |\tocotherhead{clause}|
% in the preamble after loading the package. The package then assumes
% that the bibliography heading is defined in terms of |\clause*|.
%
%    If you use the |\tocotherhead| command, then it overrides any
% \Lopt{chapter} or \Lopt{section} option.
%
% \DescribeMacro{\tocbibname}
%  The package attempts to pick up the name for the Bibliography from
%  the class definition. (Note that the \Lpack{article} class and
%  its derivatives stores
%  the name text in the |\refname| whilst the \Lpack{book} and \Lpack{report}
%  classes
%  store the name in |\bibname|). This package uses |\tocbibname|
%  to store the name of the bibliography.
%
% \changes{v1.2}{1999/01/17}{Replaced toc\ldots name commands by the set\ldots commands.}
% \DescribeMacro{\setindexname}
% \DescribeMacro{\settocname}
% \DescribeMacro{\setlotname}
% \DescribeMacro{\setlofname}
% \DescribeMacro{\settocbibname}
%    These commands set the heading texts for the index,
% ToC, list of tables and list of figures. When used with the three
% standard classes, the heading text is picked up from the |\indexname|,
% |\contentsname|, |\listtablename| and |\listfigurename| commands
% respectively. The heading texts can be changed by changing the standard
% commands, or by using |\setindexname{|\meta{name}|}|, and similarly for
% the other headings. Thus, the following two lines of code have the
% same effect:
% \begin{verbatim}
% \renewcommand{\listfigurename}{Figures}
% \setlofname{Figures}
% \end{verbatim}
% \textit{Note that these commands replace the } |\toc...name|
% \textit{commands that were in version 1.1.}
%
%
% \subsection{Numbering the List of Figures, etc.}
%
%    Some authors like, or are required, to number the Listof headings.
% Some commands are provided to simplify doing this.
%
% \DescribeMacro{\simplechapter}
% \DescribeMacro{\simplechapterdelim}
% \DescribeMacro{\restorechapter}
% In chaptered documents, the Listof headings are effectively typeset as
% |\chapter*{}|. The natural way to get numbered headings would be to
% typeset them as |\chapter{}| but this has the potential disadvantage
% that the word `Chapter', or equivalent, would be written before the
% heading, which is probably not what is required. The
% |\simplechapter[|\meta{name}|]|
% command modifies any subsequent |\chapter| commands so that the result
% looks like that of |\chapter*| except that the chapter number is put
% on the same line as the title and the value of |\simplechapterdelim|
% is typeset immediately after the number. By default, |\simplechapterdelim|
% is empty.
% If the optional \meta{name} argument
% is present, the \meta{name} is typeset before the number. For example:
% \begin{verbatim}
% \renewcommand{\simplechapterdelim}{:}
% \simplechapter[Chap]
% \end{verbatim}
% will result in |\chapter{First chapter}| being typeset like: \\
% \quad \textbf{Chap 1: First chapter}. \\
% The |\restorechapter| command resets
% any subsequent |\chapter| commands to their default behaviour.
%
% \DescribeMacro{\tocchapter}
% \DescribeMacro{\tocsection}
% Internally, the Listof commands in the \Lpack{tocbibind} package use
% |\toc@chapter| for typesetting
% the Listof headings in chaptered documents and |\toc@section| for
% non-chaptered documents. The |\tocchapter| command modifies the
% |\toc@chapter| command to use a `simple chapter' heading. The |\tocsection|
% command modifies |\toc@section| to typeset using |\section| instead of
% |\section*|.
%
%    For example, to get a numbered List of Figures heading in a chaptered
% document, put the following in the preamble:
% \begin{verbatim}
% \renewcommand{\listoffigures}{\begingroup
%    \tocchapter
%    \tocfile{\listfigurename}{lof}
% \endgroup}
% \end{verbatim}
% while to get a numbered List of Tables in a non-chaptered document:
% \begin{verbatim}
% \renewcommand{\listoftables}{\begingroup
%    \tocsection
%    \tocfile{\listtablename}{lot}
% \endgroup}
% \end{verbatim}
% More generally, to number the Table of Contents in a (non-)chaptered document
% you can do:
% \begin{verbatim}
% \renewcommand{\tableofcontents}{\begingroup
%    \tocsection
%    \tocchapter
%    \tocfile{\contentsname}{toc}
% \endgroup}
% \end{verbatim}
% The |\begingroup| |\endgroup| pairing keeps the changes local.
%
% \subsection{Page styles}
%
%    The package, by default, supports the standard |empty|, |plain|, and
% |headings| page styles. Other page styles, for example ones you specify
% yourself via the \Lpack{fancyhdr} package, are indirectly supported.
%
%    As an example, assume that you are using the \Lpack{fancyhdr} package
% and you use a |fancy| pagestyle in a \Lpack{book/report} class
% document like:
% \begin{verbatim}
% \pagestyle{fancy}
% \renewcommand{\chaptermark}[1]{\markboth{\thechapter.\ #1}{}}
% \end{verbatim}
% then you will find that the chapter titles in headers are in normalcase
% but the ToC, etc., headers are still in uppercase.
%
% \DescribeMacro{\tocetcmark}
% In this package, the marks for the ToC, LoF\ldots headers are specified
% via the command |\tocetcmark|\marg{head}. To match the |fancy| pagestyle
% this must be redefined, like:
% \begin{verbatim}
% \pagestyle{fancy}
% \renewcommand{\chaptermark}[1]{\markboth{\thechapter.\ #1}{}}
% \renewcommand{\tocetcmark}[1]{\markboth{#1}{}}
% \end{verbatim}
% which will give normalcase headers for the ToC, LoF\ldots. As these
% are not normally numbered, it would be a misjudgement to try and
% get a non-existent chapter number into the header.
%
%    Documents with sections, but not chapters, can be treated in a similar
% manner by redefining |\tocetcmark| appropriately.
%
%
%
% \subsection{Package Defined Listof...}
%
% There are packages, such as \Lpack{listings} and \Lpack{ccaption}, that
% provide new Listof lists. These can be handled by the \Lpack{tocbibind}
% package in a similar manner to the usual Listofs. Two examples are given
% below.
%
%    The \Lpack{listings} package version 0.2 provides a |\lstlistoflistings|
% command to print a list of listings. The header name for this list
% is in |\lstlistlistingname| and the listing file has the extension |lol|.
% This can be treated just like the |\listoffigure|, etc., commands.
% To add the List of Listings header to the ToC do:
% \begin{verbatim}
% \renewcommand{\lstlistoflistings}{\begingroup
%    \tocfile{\lstlistlistingname}{lol}
% \endgroup}
% \end{verbatim}
% and to number the Listof heading do:
% \begin{verbatim}
% \renewcommand{\lstlistoflistings}{\begingroup
%    \tocsection
%    \tocchapter
%    \tocfile{\lstlistlistingname}{lol}
% \endgroup}
% \end{verbatim}
%
%    The \Lpack{ccaption} package enables authors to define new kinds of
% floats (together with their captions) and Listof for each new kind of float.
% The command to define a new float is essentially
% |\newfloatlist{|\meta{fenv}|}{|\meta{ext}|}{|\meta{listname}|}{|\meta{capname}|}|,
% where \meta{fenv} is the name of the new float environment and \meta{ext}
% is the file extension for the listof file. The typesetting of the
% Listof listing is called by the command
% |\listoffenv|, where |fenv| is the name \meta{fenv}.
% For example, a new float environment for diagrams could be
% defined via \\
% |\newfloatlist{diagram}{dia}{List of Diagrams}{Diagram}|, and the Listof
% called for by \\
% |\listofdiagram|
%
%    In this case, to add the `List of Diagrams' to the ToC it is
% necessary to define a
% new listof command, and use this in place of the |\listoffenv|.
% For the diagram example this could be (unnumbered):
% \begin{verbatim}
% \newcommand{\listofdia}{\begingroup
%    \tocfile{List of Diagrams}{dia}
% \endgroup}
% \end{verbatim}
% and correspondingly for a numbered version:
% \begin{verbatim}
% \newcommand{\listofdia}{\begingroup
%    \tocsection
%    \tocchapter
%    \tocfile{List of Diagrams}{dia}
% \endgroup}
% \end{verbatim}
% and then use |\listofdia| instead of |\listofdiagram|.
%
%
%
% \subsection{Abstracts}
%
% On rare occasions a publisher may want an abstract listed in the
% ToC. This package does not provide for that, partly because
% it is easier to do than the other headings. Just proceed along
% the lines below, where \texttt{section} might have to be
% \texttt{chapter}, and if you are using the \Lpack{hyperref} package
% you have to use the |\phantomsection| macro.
% \begin{verbatim}
%   \begin{abstract}
%   % \phantomsection  % required if using hyperref
%   \addcontentsline{toc}{section}{\abstractname}
%   ... rest of the abstract
% \end{verbatim}
%
%
%
% \section{The package code} \label{sec:code}
%
%    Announce the name and version of the package, which requires
% \LaTeXe.
% \changes{v1.5}{2001/04/17}{Deleted requirement for stdclsdv package}
%    \begin{macrocode}
%<*usc>
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{tocbibind}[2026/06/01 v1.5l extra ToC listings]
%    \end{macrocode}
%
% \begin{macro}[int]{\PRWPackageNote}
% \begin{macro}[int]{\PRWPackageNoteNoLine}
% These two commands write a package Note to the terminal and log file.
% Use as |\PRWPackageNote{|\meta{package name}|}{|\meta{note text}|}|.
% The NoLine version does not show the line number. The commands are
% intermediate between the kernel |\PackageWarning| and |\PackageInfo|
% commands. I have provided them as other packages (of mine) may also
% incorporate them. The code is based on \file{lterror.dtx}.
% \changes{v1.3a}{1999/09/12}{Provided PRWPackageNote and PRWPackageNoteNoLine
%                             commands}
%    \begin{macrocode}
\providecommand{\PRWPackageNote}[2]{%
  \GenericWarning{%
    (#1)\@spaces\@spaces\@spaces\@spaces
  }{%
    Package #1 Note: #2%
   }%
}
\providecommand{\PRWPackageNoteNoLine}[2]{%
  \PRWPackageNote{#1}{#2\@gobble}%
}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}[int]{\@bibquit}
% \begin{macro}[int]{\if@bibchapter}
%  We need to know what sectional divisions are supported.
% \changes{v1.5}{2001/04/17}{Major surgery to code for checking divisions}
%    \begin{macrocode}
\newcommand{\@bibquit}{}
\newif\if@bibchapter
\@ifundefined{chapter}{%
  \@bibchapterfalse
  \@ifundefined{section}{%
    \PackageWarning{tocbibind}%
      {I don't recognize any sectional divisions.\MessageBreak
       I hope you have used the `other' option\MessageBreak
       otherwise I'll ignore the package}
    \renewcommand{\@bibquit}{\endinput}
    }{\PackageInfo{tocbibind}{The document has section divisions}}
  }{\@bibchaptertrue
    \PackageInfo{tocbibind}{The document has chapter divisions}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}[int]{\if@inltxdoc}
%    This is used as a flag for the \Lpack{ltxdoc} class. This has a
% particular kind of index that I am not going to mess with.
%    \begin{macrocode}
\newif\if@inltxdoc
\@ifclassloaded{ltxdoc}{\@inltxdoctrue}{\@inltxdocfalse}

%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}[int]{\if@dotocbib}
% \begin{macro}[int]{\if@dotocind}
% \begin{macro}[int]{\if@dotoctoc}
% \begin{macro}[int]{\if@dotoclot}
% \begin{macro}[int]{\if@dotoclof}
%    A set of booleans for deciding what is to go into the ToC. By
% default add everything.
%    \begin{macrocode}
\newif\if@dotocbib\@dotocbibtrue
\newif\if@dotocind\@dotocindtrue
\newif\if@dotoctoc\@dotoctoctrue
\newif\if@dotoclot\@dotoclottrue
\newif\if@dotoclof\@dotocloftrue

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}[int]{\if@donumbib}
% \begin{macro}[int]{\if@donumindex}
%    A set of booleans for deciding whether or not to produce numbered
% headings (default is to do unnumbered headings).
%    \begin{macrocode}
\newif\if@donumbib\@donumbibfalse
\newif\if@donumindex\@donumindexfalse
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}[int]{\if@dot@cb@bsection}
%    If TRUE, use a section heading for the bibliography no matter what
% the main document divisions are.
% \changes{v1.5e}{2003/01/22}{Added \cs{if@dot@cb@bsection}}
%    \begin{macrocode}
\newif\if@dot@cb@bsection\@dot@cb@bsectionfalse

%    \end{macrocode}
% \end{macro}
%
%    Now we can do the options. Most of them are easy.
%    \begin{macrocode}
\DeclareOption{section}{\@bibchapterfalse}
\DeclareOption{notbib}{\@dotocbibfalse}
\DeclareOption{notindex}{\@dotocindfalse}
\DeclareOption{nottoc}{\@dotoctocfalse}
\DeclareOption{notlot}{\@dotoclotfalse}
\DeclareOption{notlof}{\@dotocloffalse}
\DeclareOption{numbib}{\@donumbibtrue}
\DeclareOption{numindex}{\@donumindextrue}

%    \end{macrocode}
%  The \Lopt{chapter} option needs to check whether or not the chapter
%  heading commands are defined. If they are not, then go with the
%  section level headings.
%    \begin{macrocode}
\DeclareOption{chapter}{%
  \if@bibchapter\else
    \PackageWarning{tocbibind}%
                   {Chapters are undefined, using section instead}
  \fi}

%    \end{macrocode}
%
% The \Lopt{other} option makes |\@bibquit| a no-op and cancels any
% chapter based processing.
% \changes{v1.3}{1999/08/22}{Added the `other' option}
%    \begin{macrocode}
\DeclareOption{other}{\renewcommand{\@bibquit}{}
                      \@bibchapterfalse}
%    \end{macrocode}
%
% The \Lopt{none} option turns everything off.
% \changes{v1.}{2000/03/04}{Added the `none' option}
%    \begin{macrocode}
\DeclareOption{none}{%
  \@dotocbibfalse
  \@dotocindfalse
  \@dotoctocfalse
  \@dotoclotfalse
  \@dotocloffalse
  \@donumbibfalse
  \@donumindexfalse
}
%    \end{macrocode}
%
% Process the options now, and then quit if necessary.
% \changes{v1.3}{1999/08/22}{Now quit after option processing}
%    \begin{macrocode}
\ProcessOptions\relax
\@bibquit

%    \end{macrocode}
%
% Issue a note about the heading style being used.
% \changes{v1.3a}{1999/09/12}{Replaced PackageWarning here by PRWPackageNoteNoLine}
%    \begin{macrocode}
\if@bibchapter
  \PRWPackageNoteNoLine{tocbibind}{Using chapter style headings, unless overridden}
\else
  \PRWPackageNoteNoLine{tocbibind}{Using section or other style headings}
\fi
%    \end{macrocode}
%
% Ensure that the index is not processed if it is an \Lpack{ltxdoc} class.
%    \begin{macrocode}
\if@inltxdoc \@dotocindfalse \fi

%    \end{macrocode}
%
% \begin{macro}[int]{\@tocextra}
% \begin{macro}{\tocotherhead}
%  |\@tocextra| is the internal command to store the heading command name.\\
% |\tocotherhead{|\meta{name}|}| is the user command to set the
% heading command \meta{name} (without the backslash).
% The default is section.
% \changes{v1.3}{1999/08/22}{Renamed tocextrahead command as tocotherhead}
%    \begin{macrocode}
\newcommand{\@tocextra}{section}
\newcommand{\tocotherhead}[1]{\renewcommand{\@tocextra}{#1}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}[int]{\tocetcmark}
% \begin{macro}[int]{\prw@mkboth}
% \begin{macro}[int]{\toc@section}
% \begin{macro}[int]{\toc@headstar}
%    Utility macros, as the code that they represent gets
%  used several times over. They deal with marking for page headers
%  (code taken from \file{classes.dtx}),
%  and adding starred sectional headings to the ToC.
%
% |\tocetcmark|\marg{text} is the default mark code as called by
% sectional headings.
% \changes{v1.5b}{2001/11/10}{Added \cs{tocetcmark}}
% \changes{v1.5c}{2002/03/11}{Changed \cs{@markboth} to \cs{@mkboth} in \cs{tocetcmark}}
%    \begin{macrocode}
\newcommand{\tocetcmark}[1]{%
  \@mkboth{\MakeUppercase{#1}}{\MakeUppercase{#1}}}
%    \end{macrocode}
%
% |\prw@mkboth|\marg{text} is used later for the ToC headings.
% \changes{v1.5b}{2001/11/10}{Defined \cs{prw@mkboth} in terms of
%     \cs{tocetcmark}}
%    \begin{macrocode}
\newcommand{\prw@mkboth}[1]{\tocetcmark{#1}}
%    \end{macrocode}
%
% |\toc@section{|\meta{sec}|}{|\meta{text}|}| is a generalised version
% of |\sec*{|\meta{text}|}| which also makes an entry of \meta{text} into
% the ToC, where \meta{sec} is the name of a sectional division (with no
% backslash). |\toc@headstar{|\meta{sec}|}{|\meta{text}|}| is similar except
% that it makes no entry into the ToC.
% \changes{v1.5}{2001/04/17}{Added \cs{phantomsection} to \cs{toc@section}
%          and \cs{toc@chapter}}
% \changes{v1.5j}{2009/12/28}{Removed \cs{phantomsection}}
%    \begin{macrocode}
\newcommand{\toc@section}[2]{%
  \@nameuse{#1}*{#2\prw@mkboth{#2}}
  \addcontentsline{toc}{#1}{#2}}
\newcommand{\toc@headstar}[2]{%
  \@nameuse{#1}*{{#2}}}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}[int]{\toc@chapter}
% |\toc@chapter{|\meta{text}|}| is equivalent to |\chapter*{|\meta{text}|}|
% except that it makes an entry into the ToC.
%
%  Until version 1.5f the chapter part of the code was |\chapter*{#1\prw@mkboth{#1}}|.
% On 2003/03/12 James Szinger\footnote{\texttt{szinger@lanl.gov}} wrote that
% this failed for a bibliography in a two column book; the page headings
% for the previous chapter continued through the bibliography! James
% suggested that the mark
% part should be moved outside the chapter part (as is now done). I have
% no idea why there should have been this problem. As part of looking at
% it I even replaced the \cs{toc@chapter} as used in the |thebibliography|
% environment with the standard book class definition, which failed as
% well.
%
% \changes{v1.5g}{2003/03/13}{Minor, but vital, change to \cs{toc@chapter}}
% \changes{v1.5j}{2009/12/28}{Removed \cs{phantomsection}}
%    \begin{macrocode}
\newcommand{\toc@chapter}[1]{%
  \chapter*{#1}\prw@mkboth{#1}
  \addcontentsline{toc}{chapter}{#1}}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\tocbibname}
%    This holds the text for the Bibliography heading. We try and
% get the text from the class (either |\bibname| or |\refname|).
%    \begin{macrocode}
\ifx\bibname\undefined
  \ifx\refname\undefined
    \newcommand{\tocbibname}{References}
  \else
    \newcommand{\tocbibname}{\refname}
  \fi
\else
  \newcommand{\tocbibname}{\bibname}
\fi
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\setindexname}
% \begin{macro}{\settocname}
% \begin{macro}{\setlotname}
% \begin{macro}{\setlofname}
% \begin{macro}{\settocbibname}
%    The remaining heading texts are simpler as we only need to check
% if their respective names are defined in the class. Note that these
% commands in version 1.2 have been changed from version 1.1 in order to
% integrate with the \Lpack{tocloft} package (which operates with
% the |\contentsname| etc. commands).
%    \begin{macrocode}
\providecommand{\indexname}{Index}
\newcommand{\setindexname}[1]{\renewcommand{\indexname}{#1}}
\providecommand{\contentsname}{Contents}
\newcommand{\settocname}[1]{\renewcommand{\contentsname}{#1}}
\providecommand{\listtablename}{List of Tables}
\newcommand{\setlotname}[1]{\renewcommand{\listtablename}{#1}}
\providecommand{\listfigurename}{List of Figures}
\newcommand{\setlofname}[1]{\renewcommand{\listfigurename}{#1}}
\newcommand{\settocbibname}[1]{\renewcommand{\tocbibname}{#1}}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
%    The rest is just hacking the various environments and commands
% from \file{classes.dtx}.
%
% Following a suggestion by Donald Arseneau (CTT, `Re: memoir, natbib, and
% chapterbib', 9 Jan 2003), use |\bibsection| as a hook into
% |thebibliography| for the style of the heading.
%
% \begin{macro}[int]{\t@cb@bchapsection}
% \begin{macro}[int]{\t@cb@bsection}
%  Internal macros holding the heading for |thebibliography|.
% \changes{v1.5e}{2003/01/13}{Added \cs{t@cb@bchapsec} and \cs{t@cb@bsection}}
%    \begin{macrocode}
\newcommand{\t@cb@bchapsec}{%
  \if@bibchapter
    \if@donumbib
      \chapter{\tocbibname}%
    \else
      \toc@chapter{\tocbibname}%
    \fi
  \else
    \if@donumbib
      \@nameuse{\@tocextra}{\tocbibname}%
    \else
      \toc@section{\@tocextra}{\tocbibname}%
    \fi
  \fi}
\newcommand{\t@cb@bsection}{%
  \if@donumbib
    \@nameuse{\@tocextra}{\tocbibname}%
  \else
    \toc@section{\@tocextra}{\tocbibname}%
  \fi}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%
%    Redefine \Lenv{thebibliography}, but only if requested. Take care that
% the \Lpack{natbib} package has not already modified the environment, noting
% that \Lpack{natbib} defines and uses |\bibsection|.
% \changes{v1.5e}{2003/01/13}{Major changes in redefining the thebibliography environment}
%    \begin{macrocode}
\if@dotocbib
%    \end{macrocode}
%
%    \begin{macrocode}
  \@ifpackageloaded{natbib}{}{% natbib not loaded
%    \end{macrocode}
% The natbib package has not been used (yet), so go ahead and change
% the environment.
% \begin{macro}[no-user-doc]{\bibsection}
% Macro holding heading for |thebibliography|.
% \changes{v1.5e}{2003/01/13}{Added \cs{bibsection}}
%    \begin{macrocode}
    \newcommand{\bibsection}{\t@cb@bchapsec}
%    \end{macrocode}
% \end{macro}
% \begin{environment}{thebibliography}
% \changes{v1.5e}{2003/01/13}{Changed thebibliography to use \cs{bibsection}}
%    \begin{macrocode}
    \renewenvironment{thebibliography}[1]{%
      \bibsection
      \begin{thebibitemlist}{#1}}{\end{thebibitemlist}}}
%    \end{macrocode}
% \end{environment}
%
%
% \begin{environment}{thebibitemlist}
%    Just as a matter of style, I have extracted the list making code
% from the definition of the \Lenv{thebibliography}. It might also
% make it easier for someone to change the list environment.
% The code is a straight copy from \file{classes.dtx}.
%    \begin{macrocode}
  \newenvironment{thebibitemlist}[1]{
    \list{\@biblabel{\@arabic\c@enumiv}}%
         {\settowidth\labelwidth{\@biblabel{#1}}%
          \leftmargin\labelwidth
          \advance\leftmargin\labelsep
          \@openbib@code
          \usecounter{enumiv}%
          \let\p@enumiv\@empty
          \renewcommand\theenumiv{\@arabic\c@enumiv}}%
    \sloppy
    \clubpenalty4000
    \@clubpenalty \clubpenalty
    \widowpenalty4000%
    \sfcode`\.\@m}
   {\def\@noitemerr
     {\@latex@warning{Empty `thebibliography' environment}}%
     \endlist}

%    \end{macrocode}
% \end{environment}
%
% \begin{macro}[no-user-doc]{\sectionbib}
%    The \Lpack{chapterbib} package defines a macro |\sectionbib|
% which, if its |sectionbib| option is used, it calls at the beginning
% of the document to fiddle with
% the |thebibliography| environment (but it doesn't work when it
% is renewed as above). We need to disable the macro because we do
% our own fiddling
% \changes{v1.5e}{2003/01/22}{Killed \cs{sectionbib} from the chapterbib
%                             package}
%    \begin{macrocode}
  \@ifpackagewith{chapterbib}{sectionbib}%
    {\renewcommand{\sectionbib}[2]{}}%
    {}

%    \end{macrocode}
% \end{macro}
% This is the end of |\if@dotocbib|.
%    \begin{macrocode}
\fi

%    \end{macrocode}
%
%    At the end of the preamble we have to check if the \Lpack{natbib}
% and/or \Lpack{chapterbib} packages have been loaded after the
% \Lpack{tocbibind} package. If this is the case, we have to make sure
% that we have control with respect to their |sectionbib| options.
% \changes{v1.5e}{2003/01/22}{Added code to cater for natbib and chapterbib
%                             packages}
%    \begin{macrocode}
\AtBeginDocument{%
  \@ifpackagewith{natbib}{sectionbib}{\@dot@cb@bsectiontrue}{}
%    \end{macrocode}
% If the \Lpack{chapterbib} package was loaded before \Lpack{tocbibind}
% we have already killed |\sectionbib|. If \Lpack{chapterbib} has been
% loaded afterwards
% we must kill |\sectionbib| now before it gets used.
%    \begin{macrocode}
  \@ifpackagewith{chapterbib}{sectionbib}%
    {\@dot@cb@bsectiontrue
     \@ifundefined{sectionbib}{}{\def\sectionbib#1#2{}}}%
    {}

%    \end{macrocode}
% Lastly, use our definition of |\bibsection| for the |thebibliography|
% environment.
%    \begin{macrocode}
  \if@dotocbib
    \if@dot@cb@bsection
      \renewcommand{\bibsection}{\t@cb@bsection}%
    \else
      \renewcommand{\bibsection}{\t@cb@bchapsec}%
    \fi
  \fi
%    \end{macrocode}
% This is the end of |\AtBeginDocument|
%    \begin{macrocode}
}

%    \end{macrocode}
%
% \begin{environment}{theindex}
% In an earlier version of this
% package, for reasons that I didn't
% understand, I had to add/remove some vertical space around the Index heading
% to make its height match other chapter/section headings. In an unrelated
% thread on the \texttt{comp.text.tex} newsgroup,
% Donald Arseneau pointed out that
% that this effect was a known feature of the standard classes and
% recorded as latex bug~3126, and was caused by misplaced topskips. The
% following removes this feature for all except the \Lpack{doc} class.
% \changes{v1.4}{2000/03/04}{Fixed index head spacing for all standard classes}
%
% The first bit of code is a copy from \file{classes.dtx}.
%    \begin{macrocode}
\if@inltxdoc\else
  \renewenvironment{theindex}%
    {\if@twocolumn
       \@restonecolfalse
     \else
       \@restonecoltrue
     \fi
%    \end{macrocode}
% This next bit is where we make the package changes. Note that in the
% default definition the values for |\columnseprule| and |\columnsep|
% were set at this point to be |0pt| and |35pt| respectively. They
% are not set in this definition so that they can be adjusted by the
% user, if necessary, before starting the environment.
% \changes{v1.3}{1999/08/22}{Assorted changes for the index}
% \changes{v1.5}{2001/04/17}{Added \cs{phantomsection} to the theindex environment}
% \changes{v1.5f}{2003/02/04}{Replaced \cs{MakeUppercase} code from theindex environment}
% \changes{v1.5j}{2009/12/28}{Removed \cs{phantomsection}}
%    \begin{macrocode}
     \if@bibchapter
        \if@donumindex
          \refstepcounter{chapter}
          \twocolumn[\vspace*{2\topskip}%
                     \@makechapterhead{\indexname}]%
          \addcontentsline{toc}{chapter}{\protect\numberline{\thechapter}\indexname}
          \chaptermark{\indexname}
        \else
          \if@dotocind
            \twocolumn[\vspace*{2\topskip}%
                       \@makeschapterhead{\indexname}]%
            \prw@mkboth{\indexname}
            \addcontentsline{toc}{chapter}{\indexname}
          \else
            \twocolumn[\vspace*{2\topskip}%
                       \@makeschapterhead{\indexname}]%
            \prw@mkboth{\indexname}
          \fi
        \fi
     \else
        \if@donumindex
          \twocolumn[\vspace*{-1.5\topskip}%
                     \@nameuse{\@tocextra}{\indexname}]%
          \csname \@tocextra mark\endcsname{\indexname}
        \else
          \if@dotocind
            \twocolumn[\vspace*{-1.5\topskip}%
                       \toc@headstar{\@tocextra}{\indexname}]%
            \prw@mkboth{\indexname}
            \addcontentsline{toc}{\@tocextra}{\indexname}
          \else
            \twocolumn[\vspace*{-1.5\topskip}%
                       \toc@headstar{\@tocextra}{\indexname}]%
            \prw@mkboth{\indexname}
          \fi
        \fi
     \fi
%    \end{macrocode}
% Now we are back to the original code.
%    \begin{macrocode}
   \thispagestyle{plain}\parindent\z@
   \parskip\z@ \@plus .3\p@\relax
   \let\item\@idxitem}
   {\if@restonecol\onecolumn\else\clearpage\fi}
\fi

%    \end{macrocode}
% \end{environment}
%
% \begin{macro}[int]{\toc@start}
% \begin{macro}[int]{\toc@finish}
%  These two macros deal with the start and finish of the |\tableofcontents|
% and friends by adjusting the column settings if need be.
%    \begin{macrocode}
\newcommand{\toc@start}{%
  \if@bibchapter
    \if@twocolumn
      \@restonecoltrue\onecolumn
    \else
      \@restonecolfalse
    \fi
  \fi}

\newcommand{\toc@finish}{%
  \if@bibchapter
    \if@restonecol\twocolumn\fi
  \fi}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}[no-user-doc]{\tocfile}
%    The code for |\tableofcontents|, |\listoftables| and |\listoffigures|
% is virtually identical in each case, except for the heading text.
% |\tocfile| embodies the common code. This is virtually a parameterized copy
% from \file{classes.dtx}, except that it handles the differences between
% the \Lpack{article} class and the other two, and incorporates the
% code for additions to the ToC. It is a useful hook if any other
% package wants to extend \Lpack{tocbibind} for other kinds of listings.
%
%    The command is |\tocfile{|\meta{head-text}|}{|\meta{file-extension}|}|,
% where \meta{head-text} is the heading (e.g., List of Figures)
% and \meta{file-extension} is the file extension (e.g., \file{lof}).
%    \begin{macrocode}
\newcommand{\tocfile}[2]{%
  \toc@start
%    \end{macrocode}
% The next bit is for the heading changes.
%    \begin{macrocode}
  \if@bibchapter
    \toc@chapter{#1}
  \else
    \toc@section{\@tocextra}{#1}
  \fi
%    \end{macrocode}
% And finish up with a parameterized call to start the listing and tidy up.
%    \begin{macrocode}
  \@starttoc{#2}
  \toc@finish}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}[no-user-doc]{\tableofcontents}
%    If requested, we redefine this command, using |\tocfile| to do
% all the work for us.
%    \begin{macrocode}
\if@dotoctoc
  \renewcommand{\tableofcontents}{%
    \tocfile{\contentsname}{toc}
  }
\fi

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}[no-user-doc]{\listoftables}
%  This is almost identical to the code for |\tableofcontents|
%    \begin{macrocode}
\if@dotoclot
  \renewcommand{\listoftables}{%
    \tocfile{\listtablename}{lot}
  }
\fi

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}[no-user-doc]{\listoffigures}
%  This is almost identical to the code for |\tableofcontents|
%    \begin{macrocode}
\if@dotoclof
  \renewcommand{\listoffigures}{%
    \tocfile{\listfigurename}{lof}
  }
\fi

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\simplechapter}
% \begin{macro}{\restorechapter}
% \begin{macro}{\simplechapterdelim}
% The |\simplechapter| command modifies the |\@makechapterhead| command to
% result in an appearance akin to |\@makeschapterhead|, and is based on the
% latter. The |\restorechapter| command restores everything back to its
% original state. The value of |\simplechapterdelim| is appended to the
% chapter number before the title text.
% \changes{v1.4}{2000/03/04}{Added \cs{simplechapter} and \cs{restorechapter}
% commands}
% \changes{v1.4a}{2000/03/05}{Added \cs{simplechapterdelim} command}
% \changes{v1.5a}{2000/08/07}{Added undefined test to \cs{restorechapter}}
% If headings use templates when \cs{DocumentMetadata} is used, a different definition
% is needed.
% \changes{v1.5l}{2026/06/01}{Support heading templates with \cs{DocumentMetadata}}
%    \begin{macrocode}
\IfDocumentMetadataTF
  {
   \newcommand\simplechapter[1][]{%
%    \end{macrocode}
%    If we haven't changed the normal \texttt{chapter} instance do it now:
%    \begin{macrocode}
         \IfInstanceExistsF{heading}{chapter-orig}{%
           \DeclareInstanceCopy{heading}{chapter-orig}{chapter}%
           \DeclareInstanceCopy{headformat}{chapter-orig}{chapter}%
         }%
%    \end{macrocode}
%    Then alter some of the instance keys, one important part is to
%    use our own instance for \texttt{headformat-instance}.
%    \begin{macrocode}
         \EditInstance{heading}{chapter}{%
            prefix = #1
           ,headformat-instance=chapter
           ,prefix-decls=\Huge
           ,number-decls=\Huge
           ,number-format=\thechapter\simplechapterdelim
         }%
%    \end{macrocode}
%    Instead of the default of 20pt we only want a word space after
%    chapter number. The other adjustment that is neccessary is to
%    check if the prefix was made empty. In that case we also don't
%    want a \texttt{prefix-number-sep}.
%    \begin{macrocode}
         \DeclareInstance{headformat}{chapter}{hang}{%
            number-title-sep=\WordSpaceAmount{1}%
           ,prefix-number-sep:e=\IfBlankTF{#1}{0pt}{\noexpand\WordSpaceAmount{1}}%
         }%
       }%
%    \end{macrocode}
%    Restoring then works by copying the saved instance back (if it exists).
%    \begin{macrocode}
    \newcommand\restorechapter{%
      \IfInstanceExistsT{heading}{chapter-orig}{%
        \DeclareInstanceCopy{heading}{chapter}{chapter-orig}%
        \DeclareInstanceCopy{headformat}{chapter}{chapter-orig}%
      }%
    }%
 }
 {
   \newcommand{\simplechapter}[1][\@empty]{%
     \let\@tbiold@makechapterhead\@makechapterhead
     \renewcommand{\@makechapterhead}[1]{%
       \vspace*{50\p@}%
       {\parindent \z@ \raggedright
        \normalfont
        \interlinepenalty\@M
        \Huge\bfseries #1\space\thechapter\simplechapterdelim\space
           ##1\par\nobreak
        \vskip 40\p@
      }}
   }
   \newcommand{\restorechapter}{%
     \@ifundefined{@tbiold@makechapterhead}{}%
     {\let\@makechapterhead\@tbiold@makechapterhead}
   }
 }
\newcommand{\simplechapterdelim}{}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\tocchapter}
% \begin{macro}{\tocsection}
% These two commands modify the |\toc@chapter| and |\toc@section| commands
% to make numbered Listof headings.
% \changes{v1.4}{2000/03/04}{Added \cs{tocchapter} and \cs{tocsection}
% commands}
% \changes{v1.5d}{2002/04/09}{Provided \cs{@makechapterhead} in \cs{tocchapter}}
%    \begin{macrocode}
\newcommand{\tocchapter}{%
  \providecommand{\@makechapterhead}{}
  \simplechapter
  \renewcommand{\toc@chapter}[1]{\chapter{##1}}
}
\newcommand{\tocsection}{%
  \renewcommand{\toc@section}[2]{\@nameuse{##1}{##2}}
}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%
%    The end of this package.
%    \begin{macrocode}
%</usc>
%    \end{macrocode}
%
%
% \bibliographystyle{alpha}
%
% \begin{thebibliography}{GMS94}
%
% \bibitem[GMS94]{GOOSSENS94}
% Michel Goossens, Frank Mittelbach, and Alexander Samarin.
% \newblock {\em The LaTeX Companion}.
% \newblock Addison-Wesley Publishing Company, 1994.
%
% \bibitem[Wil96]{PRW96i}
% Peter~R. Wilson.
% \newblock {\em {LaTeX for standards: The LaTeX package files user manual}}.
% \newblock NIST Report NISTIR, June 1996.
%
% \end{thebibliography}
%
%
% \Finale
% \PrintIndex
%
\endinput

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