% CHAPTERS PSIZZL - generate the body of the publication
%
% CHAPTER MACRO
%
% \chapter{title}
%                            This command numbers the chapter,
%                            generates part of the number to be
%                            used in defining equation numbers,
%                            centers the line and prints it in
%                            boldface type.
%    When the above macro is to be used,
%    you first set up with the macro
%
% \beginbody
%
%    Then you define the chapters:
%
% \chapter{<chaptertitle>}%
%
%    where <chaptertitle> may contain embedded \breaktitle macros
%
%    After the \chapter for the last chapter, input the commnad:
%
% \beginappendices,
%
%    then more \chapter's for the appendices:
%
% \chapter{<appendixtitle>}%
%
%    Within each chapter, the current chapter name will be \chaptername
%    (for appendices, this will be a letter).
%
%    You may use macros to define sections and subsections within
%    chapters:
%
% \section{<section name>}%
%
% \subsection{<subsection name>}%
%
%    To output the tables of figures, etc. at the end, give the command:
%
% \endbody
%
%
\def\n@llout#1{\immediate\closeout#1\immediate\openout#1}%
\newcount\partcount
\def\p@rtinit{\partcount\@ne}%
\adddef\resd@c{\p@rtinit}%
\newcount\t@cpagecount\t@cpagecount\m@ne
\newcount\f@gpagecount\f@gpagecount\m@ne
\newcount\t@bpagecount\t@bpagecount\m@ne
\newcount\l@stpagecount\l@stpagecount\m@ne
\newif\ifpartapp
\newwrite\p@rtwrite
\def\p@rtfile{parts.psiztemp }%
\def\p@rthead{Table of Parts}%
\n@llout\p@rtwrite\p@rtfile
\def\part#1{%
   \ifpartapp%
      \xdef\p@rtname{Appendix\ \number\partcount}%
      \else%
      \xdef\p@rtname{Part\ \romannumeral\partcount}%
      \fi%
   \advance\partcount\@ne
   \begingroup\c@tset%
   \p@rttable%
   }%
\def\p@rtname{}%
\def\p@rttable#1{%
   \c@tMeoline\l@tMother
   \xdef\writeit{%
      \write\p@rtwrite{%
         \line{%
            \strut{\bf\p@rtname}\quad
            \uppercase{%
               \h@tMother#1\h@tMother
               }%
            \leaderfil\noexpand\number\p@gecount}%
         }%
      }%
   \writeit\endgroup
   \p@rtheader{#1}%
   }%
\def\p@rtheader#1{%
   \endpage%
   \llap{}\vfill%
   {\fortyss
      \centerline{\p@rtname}%
      \bigbreak%
      \centertitle{\uppercase{#1}}%
      }%
   \endpage%
   }%
\def\partout{%
   \ifnum\partcount=\z@\else
      \endpage\p@gefront
      {\bf\centertitle\p@rthead}%
      \immediate\closeout\p@rtwrite
      \input\p@rtfile
      \fi
   }%
\newcount\ch@ptercount
\newif\if@ppendix% chapter/@ppendix switch
\newwrite\ch@pterwrite
\def\ch@pterfile{chapters.psiztemp }%
\def\ch@pterhead{Table of Contents}%
\def\ch@ptertext{}%
\def\@ppendixtext{Appendix }%
%
\def\beginbody{%
   \b@dyreset
   }%
\def\b@dyreset{%
   \def\ch@ptername{}%
   \ch@pterinit\ch@pterreset
   \@ppendixfalse
   \p@geclear
   }%
\adddef\resd@c{\ch@pterclear\b@dyreset\fr@nttrue}%
\def\ch@pterinit{\ch@ptercount\@ne}%
\def\ch@pterclear{\ch@ptertot\z@\n@llout\ch@pterwrite\ch@pterfile}%
\def\ch@ptername{}%
\def\chapter{% title
   \if@ppendix\xdef\ch@ptername{\char\number\ch@ptercount\relax}%
      \let\temp\@ppendixtext
      \else   \xdef\ch@ptername{\number\ch@ptercount\relax}%
      \let\temp\ch@ptertext
      \fi\global\advance\ch@ptercount\@ne
   \ch@ptereject \ch@pterreset
   \ch@skiph
   \vbox\bgroup\begingroup\c@tset\ch@ptertable%
   }%
\def\ch@ptertable#1{%
   \@ddch@pt{#1}{\strut{\temp\ch@ptername.}\quad}\endgroup
   \vskip-\parskip
   \bf\centertitle{\temp\ch@ptername.\quad#1}\egroup
   \backpar\ch@skiph
   }%
\def\ch@ptercite#1#2{% fig, tab citation style
   \ifch@pterrenumber#1.#2\else#2\fi
   }%
\def\equ@tioncite#1#2{% eqn citation style
   \ifch@pterrenumber#1-#2\else#2\fi
   }%
\def\r@fcite#1#2{% ref citation style
   \ifr@frenumber#1.#2\else#2\fi
   }%
\def\ch@pterreset{\s@ctioninit\s@ctionreset\c@teclear}%
\def\ch@ptereject{\ifch@pterrenumber\vfill\supereject\fi}%
\def\beginappendices{\@ppendixtrue\ch@ptercount`A}%
%
% build the table of contents,etc iteratively:
%   1) put out TOC to determine its length => list of tables, figures
%      get the correct pagenumbers
%   2) put out list of tables and store its page number
%   3) put out list of figures and store its page number
%   4) put out TOC again, now using the correct page numbers for
%      list of tables  and list of figures
%
% (note: after \eject, the page number register contains the previous
%        page number)
%
\newif\iff@gt@bhead
\def\f@gt@bhead{\f@gt@bheadfalse
   \ifnum\t@btotal>\z@\f@gt@bheadtrue
      \line{\strut\t@btabhead\leaderfil\romannumeral-\t@bpagecount}%
      \fi
   \ifnum\f@gtotal>\z@\f@gt@bheadtrue
      \line{\strut\f@gtabhead\leaderfil\romannumeral-\f@gpagecount}%
      \fi
   }%
\newcount\blankcount
\def\rectoleaf{%
   \ifquadside
      \blankcount\pageno
      \divide\blankcount4\multiply\blankcount4
      \advance\blankcount-\pageno\blankcount-\blankcount
      \ifnum\blankcount=\@ne\else\hrule height\z@\endleaf\fi\lock
      \else\endpage
      \fi
   }%
\newif\ift@c
\newcount\t@cpages\t@cpages\@ne
\def\endbody{%
   \vfill\supereject% is there an alternative?
   \c@teout\endpage
   \iffrontmatter
      \immediate\closeout\ch@pterwrite
      \ifproof\else\endpage\fi
      %
      \l@stpagecount=\number\p@gecount\p@gecount=\number\t@cpagecount
      \t@bpagecount=\number\t@cpagecount\advance\t@bpagecount\t@cpages
      \f@gpagecount=\number\t@bpagecount\advance\f@gpagecount\m@ne
      \t@cfalse
      {\bf\uppercase{\centertitle{\ch@pterhead}}}\bigbreak
      \ifnum\ch@ptertot>\z@\unlock\input\ch@pterfile\lock\fi
      \iff@gt@bhead
         \ifnum\t@bpagecount=\p@gecount\else\t@ctrue\fi
         \t@bpagecount=\number\p@gecount\advance\t@bpagecount\m@ne
         \re@dback\t@btabwrite\t@btabfile\t@btabhead\t@btotal
         %
         \ifnum\f@gpagecount=\p@gecount\else\t@ctrue\fi
         \f@gpagecount=\number\p@gecount\advance\f@gpagecount\m@ne
         \re@dback\f@gtabwrite\f@gtabfile\f@gtabhead\f@gtotal
         \endleaf
         \ift@c
            \rectoleaf
            \l@stpagecount=\number\p@gecount\p@gecount=\number\t@cpagecount
            {\bf\uppercase{\centertitle{\ch@pterhead}}}\bigbreak
            \ifnum\ch@ptertot>\z@\unlock\input\ch@pterfile\lock\fi
            %
            \t@bpagecount=\number\p@gecount\advance\t@bpagecount\m@ne
            \re@dback\t@btabwrite\t@btabfile\t@btabhead\t@btotal
            %
            \f@gpagecount=\number\p@gecount\advance\f@gpagecount\m@ne
            \re@dback\f@gtabwrite\f@gtabfile\f@gtabhead\f@gtotal
            \endleaf
            \fi
         \fi
      \endleaf
      \p@gecount=\number\l@stpagecount
      \fi
   }%
% SECTION MACRO
%                            The \section macro sets the name in upper
%                            and lower case capitals, prints the
% \section{Name}%            section name and number (left adjusted)
%                            and skips the appropriate amount of space.
\newcount\s@ctioncount
\def\s@ctioninit{\global\s@ctioncount\@ne}%
\def\secskipt{\bigbreak}%
\def\s@ctionname{}%
\def\section{\xdef\s@ctionname{\ch@ptername.\number\s@ctioncount}%
   \global\advance\s@ctioncount\@ne
   \s@ctionreset
   \ch@skiph
   \vbox\bgroup\begingroup\c@tset\s@ctiontable%
   }%
\def\s@ctiontable#1{%
   \@ddch@pt{#1}{\quad\strut{\s@ctionname}\quad}\endgroup
   \vskip-\parskip
   \cp\noindent\s@ctionname\quad#1\par\egroup
   \backpar\ch@skiph\sectionindent
   }%
\def\s@ctionreset{\subs@ctioninit\subs@ctionreset}%
\let\sectionindent\relax
%
% SUBSECTION MACRO
%
% \subsection{name}%         Subsections appear with a number and
%                            with the name in slant font.
%
\newcount\subs@ctioncount
\def\subs@ctioninit{\global\subs@ctioncount\@ne}%
\def\subs@ctionname{}%
\def\subsection{% subsection macro
   \xdef\subs@ctionname{\s@ctionname.\number\subs@ctioncount}%
   \global\advance\subs@ctioncount\@ne
   \subs@ctionreset
   \ch@skiph
   \vbox\bgroup\begingroup\c@tset\subs@ctiontable%
   }%
\def\subs@ctiontable#1{%
   \@ddch@pt{#1}{\qquad\strut{\subs@ctionname}\quad}\endgroup
   \sl\noindent\subs@ctionname\quad#1\par\egroup
   \backpar\ch@skiph\subsectionindent
   }%
\def\subs@ctionreset{\subsubs@ctioninit\subsubs@ctionreset}%
\let\subsectionindent\relax
%
% SUBSUBSECTION MACRO
%
% \subsubsection{name}%         Subsubsections appear with a number and
%                            with the name in slant font.
%
\newcount\subsubs@ctioncount
\def\subsubs@ctioninit{\global\subsubs@ctioncount\@ne}%
\def\subsubsection{%
   \xdef\subsubs@ctionname{\subs@ctionname.\number\subsubs@ctioncount}%
   \global\advance\subsubs@ctioncount\@ne
   \subsubs@ctionreset
   \ch@skiph
   \vbox\bgroup\begingroup\c@tset\subsubs@ctiontable%
   }%
\def\subsubs@ctiontable#1{%
   \@ddch@pt{#1}{\quad\qquad\strut{\subsubs@ctionname}\quad}\endgroup
   \sl\noindent\subsubs@ctionname\quad#1\par\egroup
   \backpar\ch@skiph\subsubsectionindent
   }%
\def\subsubs@ctionreset{\p@ntinit\p@ntreset}%
\let\subsubsectionindent\relax
%
% Common to all macros: write into the table of contents file
%
\newcount\ch@ptertot\ch@ptertot\z@
\def\ch@skiph{\par\ifdim\lastskip<\bigskipamount
  \removelastskip\vskip\bigskipamount\fi}%
\def\backpar{\nobreak\vskip-\parskip\nobreak\nointerlineskip}%
\def\t@bcontents{% line for table of contents in table of contents
   \line{\strut\ch@pterhead\leaderfil\romannumeral-\t@cpagecount}%
   }%
\def\@ddch@pt#1#2{\c@tMeoline\l@tMother
   \xdef\next{%
      \write\ch@pterwrite{%
         \line{#2\h@tMother#1\h@tMother%
            \noexpand\leaderfil\noexpand\numorroman\p@gecount%
            }%
         }%
      }%
   \next\global\advance\ch@ptertot\@ne
   \l@tMspace
   }%
% for setting the first letter of each word uppercase: make space active
% cause next token to be \uppercase{\next}