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%% file: TXSconts.tex - Table of Contents - TeXsis version 2.18
%% $Id: TXSconts.tex,v 18.0 1999/07/09 17:26:11 myers Exp $
%======================================================================*
%
% These macros are an easy way to make a table of contents.
% An entry in the table of contents is created with \addTOC like so:
%
% \addTOC{level}{title-text}{page}
%
% The level is a number 0, 1, 2, etc for chapters, sections or
% subsections and is used to control the indentation of the entry.
% The page number should probably be {\folio}, so that it comes out
% correctly, but you can use anything else you like.
%
% \addTOC writes the table of contents information to a file called
% \jobname.toc. At the end of the job you simply say \Contents to read
% in this information and actually create the table of contents.
% \Contents does not print any heading or change the page numbering --
% you must take care of that yourself.
%
% If you include \TOCcID{chapter-id} in the title-text then the
% chapter-id will or will not be printed in the title depending on
% whether you have set \showchaptIDtrue or \showchaptIDfalse at the
% time you say \Contents. Similarly, \TOCsID{section-id} displays the
% section-id if \showsectIDtrue. For example, if you say
%
% \addTOC{1}{\TOCsID{3.14}Section of $\pi$}{\folio}
%
% then the section number 3.14 will or will not be displayed when
% \Contents is invoked, depending on \ifshowsectID.
%
% You can write anything you want to the table of contents file by
% saying \TOCwrite{stuff}. Use this to insert formatting information
% or headings.
%
% Note that no table of contents information is written if \Contentsfalse
% is set. This is the default in TeXsis for most document formats
% except \book and \thesis, so you should explicitly say \Contentstrue
% to get a table of contents. If this file is \input separately then
% \Contentstrue is already set.
%
% This file is a part of TeXsis, but may be used by itself with Plain TeX.
% (In that case \TOCcID and \TOCsID always show their arguments.)
%
% This file is a part of TeXsis.
% (C) copyright 1991, 1994, 1997 by Eric Myers and Frank Paige.
%----------------------------------------------------------------------*
\message{Table of Contents.}
\catcode`@=11
% I/O and switches, etc:
\newwrite\TOCout % table of contents temp file
\newskip\TOCmargin \TOCmargin=3cm % right margin indent for TOC
\newif\ifContents % do we write out to table of contents?
\Contentstrue % default is true if loaded by itself
\def\ContentsSwitchtrue{\Contentstrue} % \@obsolete in 2.18
\def\ContentsSwitchfalse{\Contentsfalse}% \@obsolete in 2.18
%---------------------------*
% Initialization: open the output file
\def\TOCinit{% open and initialize Table of Contents file
\ifContents % is switch on?
\immediate\openout\TOCout=\jobname.toc % yes: then open file
\immediate\write\TOCout{\@comment Table of Contents for job `\jobname'
-- Created at \runtime}%
\immediate\write\TOCout{\@comment ====================================}%
\gdef\TOCinit{\relax}% % initialize only once!
\fi}
% \TOCwrite lets you write to the Table of Contents file
\def\TOCwrite#1{\TOCinit\ifContents\write\TOCout{#1}\fi}
%---------------------------*
% \addTOC#1#2#3 adds a chapter, section, etc. to the table of contents,
% by writing the arguments to the .toc file in just the way \TOCitem
% wants to read them. The arguments are:
% #1 = 0 for chapter, 1 for section, 2 for subsection
% #2 = title text
% #3 = page number
\def\addTOC#1#2#3{% add entry to Table of Contents
\ifContents % only if enabled
\TOCinit % make sure file is open
\write\TOCout{\string\TOCitem{#1}}% % type of entry
\edef\@line@{{{#2}}}% % expand title text
\write\TOCout\@line@ % write title text to file
\write\TOCout{{#3}\@comment}% % write page number to file
\fi}
% \TOCcID and \TOCsID just give their names as a \string, so they
% can be written to the file. They are re-defined to their active
% forms later by \Contents.
\def\TOCcID{\string\TOCcID}\def\TOCsID{\string\TOCsID}%
%---------------------------*
% \TOCitem processes a Table of Contents entry. The arguments are the
% same as for \addTOC.
\def\TOCitem#1#2#3{% process a Table of Contents item
\ifcase#1\bigskip % \bigskip for chapters,
\or\medskip % \medskip for sections
\or\smallskip\fi % \smallskip for subsections
\begingroup %
\advance\leftskip by #1\parindent % indent sub-items
\raggedright\tolerance=1700 % don't justify
\advance\rightskip by \TOCmargin % right margin comes in, but
\parfillskip=-\TOCmargin % page number at edge of page
\hangindent=1.41\parindent\hangafter=1 % hanging indentation
\noindent #2\hskip 0pt plus 10pt % the text
\leaddots % leaders to edge
\hbox to 2em{\hss\linkto{page.#3}{#3}}% % the page number
\vskip 0pt % end paragraph
\endgroup %
}
% Leaders for dots:
\def\leaddots{\leaders\hbox to 10pt{\hss.\hss}\hfill}
%---------------------------*
% \Contents just reads and prints the table of contents file.
% \label is disabled since it is not really part of the title.
\def\Contents{% print out table of contents
\immediate\closeout\TOCout % close the .toc file!
\immediate\openin\TOCout=\jobname.toc % now open it to read
\ifeof\TOCout\closein\TOCout % if EOF just close it
\emsg{> \string\Contents: no Table of Contents file \jobname.toc.}%
\else\immediate\closein\TOCout % else close it and read in
\begingroup % make this local
\def\label##1{}\relax % disable \label in .toc file
\catcode`@=11\catcode`"=12 % no fancy active characters
\catcode`(=12\catcode`)=12 % no active ( or )
\catcode`[=12\catcode`]=12 % no active [ or ]
\def\TOCcID##1{\ifshowchaptID{##1} \fi}% % activate \TOCcID
\def\TOCsID##1{\ifshowsectID{##1} \fi}% % activate \TOCsID
\ContentsFormat % customize layout
\noindent % supress any \par indent
\input \jobname.toc \relax % read in the contents file
\endgroup %
\fi}
\let\contents=\Contents % synonym (since 2.14)
% \ContentsFormat is done before the table of contents and lets
% you customize the way the table is displayed. For example
% you could say \def\mib{}\def\n{} to turn off \mib and line breaks.
\def\ContentsFormat{\relax} % default does nothing
%---------------------------*
% Plain TeX compatability: you can use these macros with Plain TeX
% simply by saying '\input TXSconts.tex ', but to do so we need to
% make sure that the following macros from other parts of TeXsis are
% defined or faked:
\ifx\emsg\undefined % if \emsg is undefined this is not TeXsis
\def\emsg#1{\immediate\write16{#1}}% simple version of \emsg
{\catcode`\%=11 \gdef\@comment{% }}% \@comment for writing '% ' to file
\def\ifshowchaptID#1\fi{#1}\def\ifshowsectID#1\fi{#1}%
\def\runtime{\the\year/\the\month/\the\day\space\the\time}%
\def\linkto#1#2{\relax}%
\fi
%======================================================================*
% (OLD TEXSIS 2.13 -- to be removed!)
% \addsectioncont#1#2#3 adds section number #1, with title #2, and
% level #3 (0 for chapter, 1 for section, 2 for subsection) to the
% table of contents page. This is obsolete and replaced by \addTOC
\def\addsectioncont#1#2#3{\@obsolete\addsectioncont\addTOC
\addTOC{#1}{#2}{#3}}
%>>> EOF TXSconts.tex <<<
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