% \iffalse meta-comment
%
% memoir.dtx
% Author: Peter Wilson (Herries Press) herries dot press at earthlink dot net
% Copyright 2001--2008 Peter R. Wilson
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3 of this license or (at your option) any 
% later version.
% The latest version of the license is in
%    http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of
% LaTeX version 2003/06/01 or later.
%
% This work has the LPPL maintenance status "author-maintained".
%
% This work consists of the files listed in the README file.
% 
% \fi
% \CheckSum{27470}
%
% \changes{v0.1}{2001/05/20}{First public alpha release}
% \changes{v0.2}{2001/06/03}{First beta release}
% \changes{v0.3}{2001/07/09}{Bug fixing}
% \changes{v0.31}{2001/07/09}{Bug fixing}
% \changes{v0.32}{2001/08/03}{Fix for old versions of amsmath package}
% \changes{v0.33}{2001/08/03}{Added controllable chapter/LoF spacing}
% \changes{v0.33}{2001/08/03}{Fixed bug in \cs{appendixpage}}
% \changes{v1.0}{2001/10/30}{First production release}
% \changes{v1.0a}{2001/12/07}{Feature fixes} ^^A never released
% \changes{v1.1}{2002/03/10}{More fixups}
% \changes{v1.1}{2002/03/10}{Replaced all the subfigure code}
% \changes{v1.1}{2002/03/28}{Added sidebars}
% \changes{v1.1}{2002/03/28}{Upgraded verse typesetting}
% \changes{v1.2}{2002/07/07}{Added 17pt option}
% \changes{v1.2}{2002/07/07}{Added extra \cs{provide} commands}
% \changes{v1.2}{2002/07/27}{Major verbatim, box and file additions}
% \changes{v1.2}{2002/07/27}{Removed extraneous space from change marks}
% \changes{v1.2}{2002/07/27}{Extra optarg in \cs{chapter} and \cs{chapter*}}
% \changes{v1.2}{2002/07/27}{Twiddled font sizes a little}
% \changes{v1.2}{2002/08/27}{Fixed 12pt bug}
% \changes{v1.3}{2002/09/27}{Minor tweaks wrt v1.2}
% \changes{v1.3}{2002/10/10}{Extra trimming styles}
% \changes{v1.3}{2002/10/10}{Major extensions for indexing}
% \changes{v1.3}{2002/11/14}{Automatically call a patch file}
% \changes{v1.3a}{2002/11/22}{Fixed nasty figure/table bug}
% \changes{v1.4}{2003/02/27}{Added patches v1.1}
% \changes{v1.4}{2003/02/27}{Added patches v1.3}
% \changes{v1.4}{2003/11/16}{Including current patches}
% \changes{v1.4}{2003/11/16}{Added patches v1.2}
% \changes{v1.4}{2003/11/22}{Added patches v1.4}
% \changes{v1.4}{2003/11/22}{Added patches v1.5}
% \changes{v1.4}{2003/11/22}{Added patches v1.6}
% \changes{v1.4}{2003/11/22}{Added patches v1.7}
% \changes{v1.4}{2003/11/30}{Added patches v1.8}
% \changes{v1.4}{2003/11/30}{Added patches v1.9}
% \changes{v1.6}{2004/01/31}{Decided to issue v1.4 as v1.6 on the way to 
%                            the golden section 1.6180339887...}
% \changes{v1.61}{2004/03/14}{Changes to clo files, and footnotes} 
% \changes{v1.61}{2004/03/21}{Removed a potential problem with the 
%                             hangul package}
% \changes{v1.618}{2005/09/02}{Folded in all v1.61 patches}
% \changes{v1.618}{2005/09/15}{Some minor extensions}
% \changes{v1.618}{2005/09/25}{Support for glossaries}
% \changes{v1.6180}{2006/06/12}{Footnote font fix}
% \changes{v1.61803}{2008/05/26}{Folded in all mempatch v4.9a patches}
% \changes{v1.618033}{2008/06/02}{Fixed(?) page layout algorithms}
% \changes{v1.6180339}{2008/07/23}{Unemulated if... packages}
% \changes{v1.6180339}{2008/07/23}{Folded in all mempatch v5.1 patches}
%
% \def\dtxfile{memoir.dtx}
%
% \def\fileversion{v0.1}  \def\filedate{2001/05/20}
% \def\fileversion{v0.2}  \def\filedate{2001/06/03}
% \def\fileversion{v0.3}  \def\filedate{2001/07/14}
% \def\fileversion{v0.31} \def\filedate{2001/07/24}
% \def\fileversion{v0.32} \def\filedate{2001/08/03}
% \def\fileversion{v0.33} \def\filedate{2001/08/31}
% \def\fileversion{v1.0}  \def\filedate{2001/11/17}
% \def\fileversion{v1.0a} \def\filedate{2001/12/07}
% \def\fileversion{v1.1}  \def\filedate{2002/03/28}
% \def\fileversion{v1.1a} \def\filedate{2002/04/28}
% \def\fileversion{v1.2}  \def\filedate{2002/08/10}
% \def\fileversion{v1.2}  \def\filedate{2002/08/27}
% \def\fileversion{v1.3}  \def\filedate{2002/11/14}
% \def\fileversion{v1.3a} \def\filedate{2002/11/22}
% \def\fileversion{v1.4}  \def\filedate{2003/12/18}
% \def\fileversion{v1.6}  \def\filedate{2004/01/31}
% \def\fileversion{v1.61}  \def\filedate{2004/04/04}
% \def\fileversion{v1.618}  \def\filedate{2005/09/27}
% \def\fileversion{v1.6180}  \def\filedate{2006/06/12}
% \def\fileversion{v1.61803}  \def\filedate{2008/05/26}
% \def\fileversion{v1.618033}  \def\filedate{2008/06/02}
% \def\fileversion{v1.6180339}  \def\filedate{2008/07/23}
% \title{The LaTeX \Lpack{memoir} class for configurable book 
%        typesetting: Source code\thanks{This
%        file (\texttt{\dtxfile}) has version number \fileversion, last revised
%        \filedate.}}
%
% \author{%
% Peter Wilson\thanks{\texttt{herries dot press at earthlink dot net}}\\
% Herries Press}
% \date{\filedate}
% \maketitle
%
% \begin{abstract}
% The \Lpack{memoir} class is designed for typesetting
% general books such as novels, biographies, histories, 
% and so on, although as it supports all the functionality of the 
% standard \Lpack{book} class it can also be used for technical writing.
% It provides more functions than the standard class as well as 
% presenting a more friendly interface for the book designer.
% It can also simulate the typesetting style of the standard \Lpack{article}
% class.
%
%    The class was first released in mid 2001 and has been well used ever
% since.
% \end{abstract}
%
% \tableofcontents
% \listoftables
%
% \StopEventually{}
%
% 
%
% \section{Introduction}
%
% This document provides the commented source 
% for the LaTeX \Lpack{memoir} class, which is designed for typesetting
% general books such as novels, biographies, histories, 
% and so on. It has all the functionality of the standard \Lpack{book}
% class and, as well as providing some extra functions, also provides
% a more friendly interface for the document designer. As it can encompass
% everything that the \Lpack{book} class provides it may also be used
% for technical writing.
%
%   The default appearance of a document typeset with this class is
% the same as if it had been typeset with the \Lpack{book} class and
% it can be made to simulate the \Lpack{article} class..
% The class, though, includes extra facilities that make it easy to
% change the appearance of such things as the page headers and footers,
% the style of chapter and other sectional headings, and the style of
% captions. It also makes it easy to both change the style of the
% Table of Contents, List of Figures, etc., as well as creating new
% kinds of `List of\ldots'. New types of floats, if needed, can be
% created very simply. Epigraphs can be put into the document in a
% variety of styles.
%
%    The class provides a variety of page, chapter and captioning
% styles that you can choose from if you don't want to create your own.
%
%    Documents can be typeset in 9pt, 10pt, 11pt, 12pt, 14pt or 17pt font
% sizes, and if you have scaleable fonts available they can be set at any size.
% There is a reasonably intuitive means of setting the margins
% and placement of the text on a page. There is an option to put
% trim marks on the printed pages if the stock sheets need to be trimmed
% down to the final page size. For those whose publishers like a
% manuscript to look as though it was typewritten, there is an option
% to do this (double spacing, ragged right, no hyphenation, 
% fixed width font). There is also an unsophisticated means of flagging any
% revisions to the text.
%
%    As this is a new class, by default it does not support the old 
% LaTeX v2.09
% font commands, namely the \cs{bf}, \cs{sl}, \cs{it} and \cs{sc} commands;
% it warns about using the \cs{em} command but does support it.
%
%
% I hope that apart from the font commands the class 
% is compatible with
% `standard' LaTeX.
%
%    Development of this class would never have been started without
% the wonderful work done by Leslie Lamport and others~\cite{CLASSES}
% from whom I have learned a great deal and borrowed much code. 
%
%    Sections~\ref{sec:docstrip} through~\ref{sec:ic} describe some
% administrative elements and code for general use later in the 
% specification.
% The macros forming the class file are defined in sections~\ref{sec:opt}
% through~\ref{sec:init}. 
% 
% 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{A driver for this document} \label{sec:docstrip}
%
% The next series of code contains the documentation driver file for
% \LaTeX, i.e., the file that will produce the documentation you are
% currently reading. This will be extracted from this file by the 
% \textsc{docstrip} program.
%
%    \begin{macrocode}
%<*driver>
\documentclass[twoside]{ltxdoc}
\usepackage[T1]{fontenc}
\usepackage{url}
%%\usepackage[draft=false,
%%            plainpages=false,
%%            pdfpagelabels,
%%            bookmarksnumbered,
%%            hyperindex=true
%%           ]{hyperref}  % Doesn't work with indexing of \DescribeMacro
\providecommand{\phantomsection}{} % just in case hyperref not used 
%    \end{macrocode}
%
%    We do want an index, using linenumbers, but not update information.
%    \begin{macrocode}
\EnableCrossrefs
\CodelineIndex
%% \RecordChanges
%    \end{macrocode}
% We had better have page headings to aid navigation, but I don't
% like Uppercased titles.
%    \begin{macrocode}
\makeatletter
  \@mparswitchfalse
\makeatother
\renewcommand{\MakeUppercase}[1]{#1}
\pagestyle{headings}
%    \end{macrocode}
%    We may use so many \file{docstrip} modules that we set the
%    \texttt{StandardModuleDepth} counter to 1.
%    \begin{macrocode}
\setcounter{StandardModuleDepth}{1}
%    \end{macrocode}
%    Some commonly used abbreviations
%    \begin{macrocode}
\newcommand*{\Lopt}[1]{\textsf {#1}}            % typeset an option
\newcommand*{\file}[1]{\texttt {#1}}            % typeset a file
\newcommand*{\Lcount}[1]{\textsl {\small#1}}    % typeset a counter
\newcommand*{\pstyle}[1]{\textsl {#1}}          % typeset a pagestyle
\newcommand*{\Lenv}[1]{\texttt {#1}}            % typeset an environment
\newcommand*{\Lpack}[1]{\textsf {#1}}           % typeset a package
\newcommand*{\ctt}{\textsc{ctt}}                % comp.text.tex
\newenvironment{PW}{\em}{}
\newcommand*{\theTeXbook}{\textit{The \TeX book}}
%    \end{macrocode}
%    We want the full details printed.
%    \begin{macrocode}
\begin{document}
\DeleteShortVerb{\|}
\raggedbottom
\raggedright
\DocInput{memoir.dtx}
\PrintIndex
%% \PrintChanges
\end{document}
%</driver>
%    \end{macrocode}
%
%
%   ^^A  There are some elements we do not want to appear in the index.
% \DoNotIndex{\',\.,\@M,\@@input,\@addtoreset,\@arabic,\@badmath}
% \DoNotIndex{\@centercr,\@cite}
% \DoNotIndex{\@dotsep,\@empty,\@gobble,\@gobbletwo,\@ignoretrue}
% \DoNotIndex{\@input,\@ixpt,\@m}
% \DoNotIndex{\@minus,\@ne,\@nil,\@nomath,\@plus,\@set@topoint}
% \DoNotIndex{\@tempboxa,\@tempcnta,\@tempdima,\@tempdimb}
% \DoNotIndex{\@tempswafalse,\@tempswatrue,\@viipt,\@viiipt,\@vipt}
% \DoNotIndex{\@vpt,\@warning,\@xiipt,\@xipt,\@xivpt,\@xpt,\@xviipt}
% \DoNotIndex{\@xxpt,\@xxvpt,\\,\ ,\addpenalty,\addtolength,\addvspace}
% \DoNotIndex{\advance,\Alph,\alph}
% \DoNotIndex{\arabic,\ast,\begin,\begingroup,\bfseries,\bgroup,\box}
% \DoNotIndex{\bullet}
% \DoNotIndex{\cdot,\cite,\CodelineIndex,\cr,\day,\DeclareOption}
% \DoNotIndex{\def,\DisableCrossrefs,\divide,\DocInput,\documentclass}
% \DoNotIndex{\DoNotIndex,\egroup,\ifdim,\else,\fi,\em,\endtrivlist}
% \DoNotIndex{\EnableCrossrefs,\end,\endgroup}
% \DoNotIndex{\endlist,\everycr,\everypar,\ExecuteOptions,\expandafter}
% \DoNotIndex{\fbox}
% \DoNotIndex{\filedate,\filename,\fileversion,\fontsize,\framebox,\gdef}
% \DoNotIndex{\global,\halign,\hbox,\hfil,\hfill,\hrule}
% \DoNotIndex{\hsize,\hskip,\hspace,\hss,\if@tempswa,\ifcase,\or,\fi,\fi}
% \DoNotIndex{\ifhmode,\ifvmode,\ifnum,\iftrue,\ifx,\fi,\fi,\fi,\fi,\fi}
% \DoNotIndex{\input}
% \DoNotIndex{\jobname,\kern,\leavevmode,\let}
% \DoNotIndex{\list,\llap,\long,\m@ne,\m@th}
% \DoNotIndex{\month,\newcommand,\newcounter,\newenvironment}
% \DoNotIndex{\NeedsTeXFormat,\newdimen}
% \DoNotIndex{\newlength,\newpage,\nobreak,\noindent,\null,\number}
% \DoNotIndex{\numberline,\OldMakeindex,\OnlyDescription,\p@}
% \DoNotIndex{\par,\paragraph,\paragraphmark,\parfillskip}
% \DoNotIndex{\penalty,\PrintChanges,\PrintIndex,\ProcessOptions}
% \DoNotIndex{\protect,\ProvidesClass}
% \DoNotIndex{\refstepcounter,\relax,\renewcommand,\reset@font}
% \DoNotIndex{\rightskip,\rlap,\rmfamily,\roman}
% \DoNotIndex{\roman,\secdef,\selectfont,\setbox,\setcounter,\setlength}
% \DoNotIndex{\settowidth,\sfcode,\skip,\sloppy,\slshape,\space}
% \DoNotIndex{\symbol,\the,\trivlist,\typeout,\tw@,\undefined,\uppercase}
% \DoNotIndex{\usecounter,\usefont,\usepackage,\vfil,\vfill,\viiipt}
% \DoNotIndex{\viipt,\vipt,\vskip,\vspace}
% \DoNotIndex{\wd,\xiipt,\year,\z@}
% \DoNotIndex{\@namedef,\@nameuse,\csname,\endcsname}
%
%
%
% \section{Identification} \label{sec:id}
%
%    The \Lpack{memoir} document class can only be used with LaTeX2e, 
% so we make
%    sure that an appropriate message is displayed when another \TeX{}
%    format is used.
%    \begin{macrocode}
%<class>\NeedsTeXFormat{LaTeX2e}
%    \end{macrocode}
%
% ^^A Use the Golden Section as the version number (1.6180339887 4989484820 4586834365)
%    Announce the name, option files and version for LaTeX2e files:
%    \begin{macrocode}
%<class>\ProvidesClass{memoir}%
%<class>  [2008/07/23 v1.6180339 configurable book, report, article document class]
%<9pt>\ProvidesFile{mem9.clo}%
%<9pt>             [2008/01/30 v0.4 memoir class 9pt size option]
%<10pt>\ProvidesFile{mem10.clo}%
%<10pt>             [2008/01/30 v0.3 memoir class 10pt size option]
%<11pt>\ProvidesFile{mem11.clo}%
%<11pt>             [2008/01/30 v0.3 memoir class 11pt size option]
%<12pt>\ProvidesFile{mem12.clo}%
%<12pt>             [2008/01/30 v0.4 memoir class 12pt size option]
%<14pt>\ProvidesFile{mem14.clo}%
%<14pt>             [2008/01/30 v0.4 memoir class 14pt size option]
%<17pt>\ProvidesFile{mem17.clo}%
%<17pt>             [2008/01/30 v0.3 memoir class 17pt size option]
%<20pt>\ProvidesFile{mem20.clo}%
%<20pt>             [2008/01/31 v0.1 memoir class 20pt size option]
%<25pt>\ProvidesFile{mem25.clo}%
%<25pt>             [2008/01/31 v0.1 memoir class 25pt size option]
%<30pt>\ProvidesFile{mem30.clo}%
%<30pt>             [2008/01/31 v0.1 memoir class 30pt size option]
%<36pt>\ProvidesFile{mem36.clo}%
%<36pt>             [2008/01/31 v0.1 memoir class 36pt size option]
%<48pt>\ProvidesFile{mem48.clo}%
%<48pt>             [2008/01/31 v0.1 memoir class 48pt size option]
%<60pt>\ProvidesFile{mem60.clo}%
%<60pt>             [2008/01/31 v0.1 memoir class 60pt size option]
%    \end{macrocode}
%
%
% \section{Initial Code} \label{sec:ic}
%
%    \begin{macrocode}
%<*class>
%    \end{macrocode}
%
% Note (2001/08/03): Old versions of the \Lpack{amsmath} package did odd
% things with \cs{@tempa}, \cs{@tempb} and \cs{@tempc}. I have now replaced
% any use of these with \cs{@memtempa}, etc.
%
%    In this part we define a few commands that are used later on.
%
% \begin{macro}{\@ptsize}
% \begin{macro}{\@memptsize}
%    The \cs{@ptsize} control sequence is normally used to store the 
%    second digit of the
%    pointsize we are typesetting in. So, normally, it's value is one
%    of 0, 1 or 2.
%
% \cs{@memptsize} stores the full pointsize.
% \changes{v1.61803}{2008/01/30}{Added \cs{@memptsize}}
%    \begin{macrocode}
\newcommand*{\@ptsize}{}
\newcommand*{\@memptsize}{}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% Any new lengths that depend on the point size option must be declared
% before the options are executed.
% \begin{macro}{\onelineskip}
% \begin{macro}{\lxvchars}
% \begin{macro}{\xlvchars}
% The length \cs{onelineskip} is the vertical space taken
% by a normal line of text. The lengths \cs{lxvchars} and \cs{xlvchars} are
% the approximate lengths required for typesetting lines with either 65 or 45
% characters.
%    \begin{macrocode}
\newlength{\onelineskip}
\newlength{\lxvchars}
\newlength{\xlvchars}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@memcnta}
% \begin{macro}{\c@memmarkcntra}
% We need a scratch count register and a scratch counter.
% \changes{v1.61803}{2008/10/30}{Added @memmarkcntra scratch counter}
%    \begin{macrocode}
\newcount\@memcnta
\newcounter{@memmarkcntra}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \changes{v1.0a}{2001/11/28}{Deleted count register \cs{@memtempa}}
%
% \begin{macro}{\if@restonecol}
%    When the document has to be printed in two columns, we sometimes
%    have to temporarily switch to one column. This switch is used to
%    remember to switch back.
%    \begin{macrocode}
\newif\if@restonecol
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\if@openright}
% This is TRUE if chapters are to start on righthand (recto) pages;
% this is the default. FALSE means chapters can start on any page.
%    \begin{macrocode}
\newif\if@openright
  \@openrighttrue

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\if@openleft}
% This is TRUE if chapters are to start on lefthand (verso) pages.
%    \begin{macrocode}
\newif\if@openleft
  \@openleftfalse

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\if@mainmatter}
% This is TRUE if the main part of the document is being currently procesed;
% this is the default.
%    \begin{macrocode}
\newif\if@mainmatter
  \@mainmattertrue

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\if@memoldfont}
% This is TRUE if the \Lopt{oldfontcommands} option is used.
% \changes{v1.0a}{2002/01/29}{Added \cs{if@memoldfont}}
%    \begin{macrocode}
\newif\if@memoldfont
  \@memoldfontfalse

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\ifextrafontsizes}
% This is TRUE if the \Lopt{extrafontsizes} option is used.
% \changes{v1.61803}{2008/01/30}{Added \cs{ifextrafontsizes}}
%    \begin{macrocode}
\newif\ifextrafontsizes
  \extrafontsizesfalse

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@memerror}
% \begin{macro}{\@memwarn}
% Two macros to save some space when reporting errors or warnings.
% The macros take the same arguments, ignoring the first in each case,
% as \cs{ClassError} and \cs{ClassWarning}, e.g., \\
% \verb?\@memwarn{Message}? \\
% instead of \\
% \verb?\ClassWarning{memoir}{Message}?.
% \changes{v1.4}{2003/02/27}{Added \cs{@memerror} and \cs{@memwarn}}
%    \begin{macrocode}
\newcommand*{\@memerror}{\ClassError{memoir}}
\newcommand*{\@memwarn}{\ClassWarning{memoir}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\ifsamename}
% \begin{macro}{\nametest}
%    The macro \cs{nametest}\marg{name1}\marg{name2} tests whether the
% characters forming the two arguments are the same or not. If they are the
% same then \cs{ifsamename} is set TRUE, otherwise it is set FALSE. \meta{name1}
% and \meta{name2} must both be either macro names (including the backslash)
% or must both not be macro names. That is, you cannot do 
% \verb?\nametest{\cs}{cs}?.
%    \begin{macrocode}
\newif\ifsamename
\newcommand{\nametest}[2]{%
  \samenamefalse
  \begingroup
  \def\@memtempa{#1} \def\@memtempb{#2}
  \ifx \@memtempa\@memtempb
    \endgroup
    \samenametrue
  \else
    \endgroup
  \fi}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\ifm@m@And}
% \begin{macro}{\m@m@Andtrue}
% \begin{macro}{\m@m@Andfalse}
% \begin{macro}{\ifm@m@Or}
% \begin{macro}{\m@m@Ortrue}
% \begin{macro}{\m@m@Orfalse}
% \begin{macro}{\ifm@m@Xor}
% \begin{macro}{\m@m@Xortrue}
% \begin{macro}{\m@m@Xorfalse}
% These are for `if A and B', `if A or B' and `if A xor B'.
%
% For A and B:
% \begin{verbatim}
% \m@m@Andfalse
% \ifA
%   \ifB
%     \m@mAndtrue
%   \fi
% \fi
% \end{verbatim}
% For A or B:
% \begin{verbatim}
% \m@m@Ortrue
% \ifA
% \else
%   \ifB
%   \else
%     \m@m@Orfalse
%   \fi
% \fi
% \end{verbatim}
% For A xor B:
% \begin{verbatim}
% \m@m@Xortrue
% \ifA
%   \ifB
%     \m@m@Xfalse
%   \fi
% \else
%   \ifB
%   \else
%     \m@m@Xorfalse
%   \fi
% \fi
% \end{verbatim}
% \changes{v1.618}{2005/09/09}{Added \cs{ifm@m@And}, \cs{ifm@m@Or} and \cs{ifm@m@Xor}}
%    \begin{macrocode}
\newif\ifm@m@And
\newif\ifm@m@Or
\newif\ifm@m@Xor

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \changes{v0.3}{2001/07/09}{Deleted \cs{fillline} and \cs{makecommand} as
% they were not used}
%
%
% \begin{macro}{\kill@lastcounter}
% \cs{kill@lastcounter}\marg{cntr}\footnote{With thanks to Stefan Ulrich
% (\texttt{ulrich@cis.uni-muenchen.de}) who answered a question on this
% on \ctt, 2001/07/09. (Also answered by Heiko Oberdiek,
% \texttt{oberdiek@ruf.uni-freiburg.de}).}
%  kills the counter \meta{cntr}. This macro is an extension to the
% suggestions as it also makes the last count register reusable.
% \emph{The macro must only be used when the last allocated counter is to
% be killed.}
% For example with:\\
% \verb?\newcounter{fred} \kill@lastcounter{fred} \newcounter{fred}? \\
% there is no error with the second \cs{newcounter}.
% \changes{v0.3}{2001/07/09}{Added \cs{kill@counter}}
% \changes{v1.618}{2005/09/02}{Ensured \cs{kill@counter} zeroed the counter}
%    \begin{macrocode}
\newcommand{\kill@lastcounter}[1]{%
%    \end{macrocode}
% Deallocate the last counter register. From \theTeXbook, \verb?\count10? is
% the number of the last register. The counter should be zeroed before being
% deallocated otherwise an immediatally following \cs{newcount} may not
% be zero when allocated\footnote{Discovered and fix provided by Robert 
% Schlicht on 2005/08/31.}.
%    \begin{macrocode}
  \count\count10 \z@
  \advance\count10 \m@ne
%    \end{macrocode}
% Set the internal counter definition to \cs{relax}.
%    \begin{macrocode}
  \expandafter\let\csname c@#1\endcsname\relax}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@name@p@xdf}
% \begin{macro}{\@name@unresp@xdef}
% \begin{macro}{\@namelet}
% \begin{macro}{\@namelongdef}
%  Utility definition macros, along the lines of the kernel's \cs{@namedef}.
% \changes{v1.4}{2003/11/22}{Added \cs{@namelet} and friends (from patch v1.8)}
%    \begin{macrocode}
\newcommand{\@name@p@xdef}[1]{%
  \expandafter\protected@xdef\csname #1\endcsname}
\newcommand{\@name@unresp@xdef}[1]{%
  \expandafter\unrestored@protected@xdef\csname #1\endcsname}
\newcommand{\@namelet}[1]{%
  \expandafter\let\csname #1\endcsname}
\newcommand{\@namelongdef}[1]{%
  \long\expandafter\def\csname #1\endcsname}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@nameedef}
% A shorthand for using \cs{protected@edef}.
%    \begin{macrocode}
\newcommand{\@nameedef}[1]{%
  \expandafter\protected@edef\csname #1\endcsname}

%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\memjustarg}
% \begin{macro}{\memgobble}
% Utility macros \emph{that are not to be changed by any user!}
% \changes{v1.618}{2005/09/25}{Added \cs{memjustarg} and \cs{memgobble}}
%    \begin{macrocode}
\newcommand{\memjustarg}[1]{#1}
\newcommand{\memgobble}[1]{}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \subsection{Classes, Packages and Files}
%
% \begin{macro}{\@memfakeusepackage}
% \cs{@memfakeusepackage}\marg{pack} fools \LaTeX{} into thinking
% that the \meta{pack.sty} package has been loaded.
% \changes{v1.4}{2003/11/22}{Added \cs{@memfakeusepackage} (from patch v1.9)}
%    \begin{macrocode}
\newcommand*{\@memfakeusepackage}[1]{%
  \@namelet{ver@#1.sty}\@empty}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\EmulatedPackage}
% \begin{macro}{\EmulatedPackageWithOptions}
%  There was some discussion on CTT\footnote{\textit{Re: breakurl + pdfetex 
% for generating .dvi}, March 2005.} about how to prevent loading of
% a package. My response was to use \cs{@memfakusepackage}. Donald Arseneau
% came up with this comprehensive solution (there was a little discussion
% about naming with my final suggestion as here). \\
% \cs{EmulatedPackage}\marg{package}\oarg{date} \\
% \cs{EmulatedPackageWithOptions}\marg{option-list}\marg{package}\oarg{date} \\
%
% \changes{v1.618}{2005/09/04}{Added \cs{EmulatedPackage} and
%          \cs{EmulatedPackageWithOptions}}
% \changes{v1.6180339}{2008/07/23}{Extended \cs{EmulatedPackage}}
%    \begin{macrocode}
\providecommand*{\EmulatedPackage}{}
\renewcommand*{\EmulatedPackage}[1]{%
  \@ifnextchar[{\@emulated@package{#1}}%
               {\@emulated@package{#1}[\@empty]}%]
}
\providecommand*{\EmulatedPackageWithOptions}{}
\renewcommand*{\EmulatedPackageWithOptions}[2]{%
  \PassOptionsToPackage{#1}{#2}%
  \EmulatedPackage{#2}%
}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@emulated@package}
% The workhorse for the user commands.
%    \begin{macrocode}
\def\@emulated@package#1[#2]{%
  \expandafter\xdef\csname ver@#1.\@pkgextension\endcsname{#2}%
  \@ifundefined{opt@#1.\@pkgextension}%
    {\@namedef{opt@#1.\@pkgextension}{}}{}%
  \wlog{Package #1 \ifx\@empty#2\else[#2] \fi 
        \if,\csname opt@#1.\@pkgextension\endcsname,\else
        (with options \csname opt@#1.\@pkgextension\endcsname) \fi
        emulated by \@currname.}%
}
\@onlypreamble\EmulatedPackage
\@onlypreamble\EmulatedPackageWithOptions
\@onlypreamble\@emulated@package

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\DisemulatePackage}
% \cs{DisemulatePackage}\marg{package} undoes a previous 
% \cs{EmulatedPackage...}
% \changes{v1.61803}{2008/01/30}{Added \cs{DisemulatePackage} from memptach v4.5}
% \changes{v1.6180339}{2008/07/23}{Fixed \cs{DisemulatePackage} from mempatch v5.1}
%    \begin{macrocode}
\newcommand*{\DisemulatePackage}[1]{%
  \@namelet{ver@#1.\@pkgextension}\relax}
\@onlypreamble\DisemulatePackage

%    \end{macrocode}
% \end{macro}
% 
%
%    Code, based on a hint from Morten H{\o}gholm\footnote{CTT posting
% 2005/11/08, \textit{Re: Checking for packages froma class... 
% revisited}} that the \Lpack{scrlfile} package from 
% \Lpack{koma-script} includes commands such as \\
% \cs{AfterFile}\marg{file}\marg{code} \\
% plus before and after classes and packages.
% \changes{v1.16803}{2008/01/30}{Added various \cs{AtBegin...} and 
%         \cs{AtEnd...} macros (mempatch v4.2)}
%
%    Extend the \cs{InputIfFileExists} macro to call hooks before and
% the actual inputting. The kernel version (as of 2005/11/21) is:
% \begin{verbatim}
% \newcommand{\InputIfFileExists}[2]{%
%  \IfFileExists{#1}%
%    {\#2\@addtofilelist{#1}\@@input \@filef@und}}
% \end{verbatim}
%
% \begin{macro}{\InputIfFileExists}
% Effectively all file input is handled by this macro. Extend it
% by adding pre- and post- input hooks.
%    \begin{macrocode}
\renewcommand{\InputIfFileExists}[2]{%
  \IfFileExists{#1}%
    {#2\@addtofilelist{#1}\m@matbeginf{#1}%
     \@@input \@filef@und
     \m@matendf{#1}%
     \killm@matf{#1}}}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\m@matbeginf}
% \begin{macro}{\m@matendf}
% \cs{m@matbeginf}\marg{file} calls macro \cs{file-m@mfb} if it 
% is defined. Similarly \cs{m@matendf}\marg{file} calls
% \cs{file-m@mfe} if it is defined.
%    \begin{macrocode}
\newcommand{\m@matbeginf}[1]{\@ifundefined{#1-m@mfb}{}%
  {\@nameuse{#1-m@mfb}}}
\newcommand{\m@matendf}[1]{\@ifundefined{#1-m@mfe}{}%
  {\@nameuse{#1-m@mfe}}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\killm@matf}
% \cs{killm@matf}\marg{file} undefines the \cs{file-m@mfb} and
% \cs{file-m@mfe} macros.
%    \begin{macrocode}
\newcommand*{\killm@matf}[1]{%
  \@namelet{#1-m@mfb}\relax
  \@namelet{#1-m@mfe}\relax}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\AtBeginFile}
% \begin{macro}{\AtEndFile}
% \cs{AtBeginFile}\marg{file}\marg{code} inserts \meta{code}
% just before \meta{file} is input. Similarly \cs{AtEndFile} inserts
% just after input.
%    \begin{macrocode}
\newcommand{\AtBeginFile}[2]{\@ifundefined{#1-m@mfb}%
  {\@namedef{#1-m@mfb}{#2}}%
  {\expandafter\addtodef\csname #1-m@mfb\endcsname{}{#2}}}
\newcommand{\AtEndFile}[2]{\@ifundefined{#1-m@mfe}%
  {\@namedef{#1-m@mfe}{#2}}%
  {\expandafter\addtodef\csname #1-m@mfe\endcsname{}{#2}}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\AtBeginPackage}
% \begin{macro}{\AtEndPackage}
% \begin{macro}{\RequireAtEndPackage}
% \cs{AtBeginPackage}\marg{pack}\marg{code} inserts \meta{code} 
% just before the \meta{pack} package is input, and \cs{AtEndPackage}
% is the equivalent for after input. \cs{RequireAtEndPackage} inserts
% \meta{code} either at the end of \meta{pack}, or immediately if
% \meta{pack} has already been input.
%    \begin{macrocode}
\newcommand{\AtBeginPackage}[2]{%
  \AtBeginFile{#1.\@pkgextension}{#2}}
\newcommand{\AtEndPackage}[2]{%
  \AtEndFile{#1.\@pkgextension}{#2}}
\newcommand{\RequireAtEndPackage}[2]{%
  \@ifpackageloaded{#1}{#2}%
  {\AtEndFile{#1.\@pkgextension}{#2}}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\AtBeginClass}
% \begin{macro}{\AtEndClass}
% \begin{macro}{\RequireAtEndClass}
% \cs{AtBeginClass}\marg{class}\marg{code} and friends are the class
% equivalents of \cs{AtBeginPackage} and friends.
%    \begin{macrocode}
\newcommand{\AtBeginClass}[2]{%
  \AtBeginFile{#1.\@clsextension}{#2}}
\newcommand{\AtEndClass}[2]{%
  \AtEndFile{#1.\@clsextension}{#2}}
\newcommand{\RequireAtEndClass}[2]{%
  \@ifclassloaded{#1}{#2}%
  {\AtEndFile{#1.\@clsextension}{#2}}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
%
%
%
% \begin{macro}{\phantomsection}
% A command needed if the \Lpack{hyperref} package is used, for putting
% before certain \cs{addcontentsline} commands.
%    \begin{macrocode}
\newcommand{\phantomsection}{}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\nofiles}
% The kernel's \cs{nofiles}, which surprisingly may be called \emph{before} 
% the class is loaded, lets \cs{makeindex} to \cs{relax}. This could 
% cause problems\footnote{As reported by Heiko Oberdiek on 2005/07/09.}
% with my initial version of \cs{makeindex}.
% Here's the kernel \cs{nofiles} definition:
% \begin{verbatim}
% \def\nofiles{%
%   \@fileswfalse%  flag for suppressing \immediate \writes
%   \typeout{No auxiliary output files.^^J}%
%   \long\def\protected@write##1##2##3%
%     {\write\m@ne{}\if@nobreak\ifvmode\nobreak\fi\fi}%
%   \let\makeindex\relax
%   \let\makeglossary\relax}
% \end{verbatim}
% To get it to work for when \cs{makeindex}es optional argument is
% used I let \cs{makeindex} itself deal with \cs{nofiles} (and
% also \cs{makeglossary}).
% \changes{v1.618}{2005/09/25}{Modified the kernel's \cs{nofiles}}
%    \begin{macrocode}
 \renewcommand*{\nofiles}{%
   \@fileswfalse%  flag for suppressing \immediate \writes
   \typeout{No auxiliary output files.^^J}%
   \long\def\protected@write##1##2##3%
     {\write\m@ne{}\if@nobreak\ifvmode\nobreak\fi\fi}%
   }

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\memsetcounter}
% A wrapper round \cs{setcounter}. I want to use this in the \texttt{aux} file.
% \changes{v1.61803}{2008/01/30}{Added \cs{memsetcounter}}
%    \begin{macrocode}
\newcommand*{\memsetcounter}[2]{\setcounter{#1}{#2}}
\AtBeginDocument{\immediate\write\@mainaux{%
  \string\providecommand*{\string\memsetcounter}[2]{}}}

%    \end{macrocode}
% \end{macro}
%
% \subsection{For package documentation}
%
% Some macros that may be useful for documenting LaTeX code. These
% have principally come from \texttt{doc.dtx}.
%
% \begin{macro}{\bs}
% Prints \verb?\?
%    \begin{macrocode}
\def\bs{\texttt{\char`\\}}
%    \end{macrocode}
% \end{macro} 
%
% \begin{macro}{\l@nohyphenation}
% \begin{macro}{\meta}
% \begin{macro}{\meta@font@select}
% From \texttt{doc.dtx} \\
% \cs{meta}\marg{arg} prints \meta{arg}.
%    \begin{macrocode}
\ifx\l@nohyphenation\undefined
  \newlanguage\l@nohyphenation
\fi
\DeclareRobustCommand{\meta}[1]{%
  \ensuremath\langle
  \ifmmode \expandafter \nfss@text \fi
  {%
    \meta@font@select
    \edef\meta@hyphen@restore
      {\hyphenchar\the\font\the\hyphenchar\font}%
    \hyphenchar\font\m@ne
    \language\l@nohyphenation
    #1\/%
    \meta@hyphen@restore
  }\ensuremath\rangle
}
\def\meta@font@select{\itshape}

%    \end{macrocode}
% \end{macro} 
% \end{macro} 
% \end{macro} 
%
% \begin{macro}{\marg}
% \begin{macro}{\oarg}
% \begin{macro}{\parg}
% Robust versions of the \texttt{doc.dtx} macros. \\
% \cs{marg}\marg{arg} prints \marg{arg} \\
% \cs{oarg}\marg{arg} prints \oarg{arg} \\
% \cs{parg}\marg{arg} prints \parg{arg} \\
%    \begin{macrocode}
\DeclareRobustCommand{\marg}[1]{%
  {\ttfamily\char`\{}\meta{#1}{\ttfamily\char`\}}}
\DeclareRobustCommand{\oarg}[1]{%
  {\ttfamily\char`\[}\meta{#1}{\ttfamily\char`\]}}
\DeclareRobustCommand{\parg}[1]{%
  {\ttfamily\char`\(}\meta{#1}{\ttfamily\char`\)}}
%    \end{macrocode}
% \end{macro} 
% \end{macro} 
% \end{macro} 
%
% \begin{macro}{\cs}
% \verb?\cs{arg}? prints \cs{arg}.
%    \begin{macrocode}
\DeclareRobustCommand{\cs}[1]{\texttt{\char`\\#1}}
%    \end{macrocode}
% \end{macro} 
%
%
% \begin{macro}{\cmdprint}
% \begin{macro}{\cmd}
% From Heiko Oberdiek CTT 2001/05/26 (print and index a command) \\
% \verb?\cmdprint{\fred}? prints \verb?\fred? \\
% \verb?\cmd{\fred}? prints and indexes \verb?\fred?. NOTE It assumes that
% \verb!?! is the `actual' character for MakeIndex (it is normally \verb!@!
% but that is not much use if a command includes \verb!@! as part of its name).
%    \begin{macrocode}
\newcommand{\cmdprint}[1]{\texttt{\string#1}}
\newcommand{\cmd}[1]{\cmdprint{#1}%
  \index{\expandafter\@gobble\string#1?\string\cmdprint{\string#1}}}

%    \end{macrocode}
% \end{macro} 
% \end{macro} 
%
%
%
%
% \subsection{Checking the processor}
%
%     Prior to 2008/07/22 the \Lpack{hyperref} package was modified in such a 
% way as to produce warnings about versions of the \Lpack{ifpdf} and 
% \Lpack{ifxetex} packages when \Lpack{hyperref} was used with versions 
% v1.618033, 
% v1.61803, or v1.618 mempatch v4.9 of the class. 
% \Lpack{hyperref}'s author refused to
% make any changes to his package, insisting that emulating a package was 
% `ugly hacking'. He did, though, provide an example code that could be 
% added to memoir
% to use a package if it was available. I have used it for the emulations
% in this section. There will be no further changes to the class to accomodate
% any further changes to \Lpack{hyperref} --- it's easy for a package to 
% determine what class is being used and make arrangements accordingly, 
% especially as there are not all that many classes. There are hundreds 
% of packages that might be used with a particular class and it would be 
% senseless for a class to attempt to take account of everything that might 
% be used with it.
%
% \begin{macro}{\ifpdf}
% \begin{macro}{\pdftrue}
% \begin{macro}{\pdffalse}
% This can be used to check whether or not a document is being processed
% by \LaTeX{} or pdf\LaTeX. 
% \changes{v1.0}{2001/09/21}{Made checking of \cs{pdfouput} more robust}
% \changes{v1.618}{2005/09/03}{Prohibit loading the ifpdf package (mempatch v3.9)}
% \changes{v1.618033}{2008/06/02}{Further improved pdf checking}
% \changes{v1.6180339}{2008/07/23}{Use ifpdf package if available}
%    \begin{macrocode}
\newif\ifm@mifpdf
  \m@mifpdffalse
\IfFileExists{ifpdf.sty}{\RequirePackage{ifpdf}\relax}{%
  \ClassWarningNoLine{memoir}{%
    Package `ifpdf' is not installed.\MessageBreak
    The package is being emulated}%
\m@mifpdftrue
\newif\ifpdf
  \pdffalse
\ifx\pdfoutput\undefined
\else
  \ifx\pdfoutput\@undefined
  \else
    \ifx\pdfoutput\relax
    \else
      \ifnum\pdfoutput>0\relax
        \pdftrue
      \fi
    \fi
  \fi
\fi
%%\EmulatedPackage{ifpdf}[2008/07/23]
}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\ifetex}
% \begin{macro}{\etextrue}
% \begin{macro}{\etexfalse}
% Check if \texttt{etex} is being used. This is based on the check for 
% \texttt{pdf(latex)}. Someone may have created a package for this, 
% or perhaps not.
% \changes{v1.61803}{2008/01/30}{Added check for etex (mempatch v4.9)}
% \changes{v1.618033}{2008/06/02}{Improved check for etex}
% \changes{v1.6180339}{2008/07/23}{Use an ifetex package if available}
%    \begin{macrocode}
\newif\ifm@mifetex
  \m@mifetexfalse
\IfFileExists{ifetex.sty}{\RequirePackage{ifetex}\relax}{%
  \ClassWarningNoLine{memoir}{%
    If there is an `ifetex' package then it is not installed.\MessageBreak
    The package is being emulated}%
\m@mifetextrue
\newif\ifetex
  \etexfalse
\ifx\eTeXversion\undefined
\else
  \ifx\eTeXversion\@undefined
  \else
    \ifx\eTeXversion\relax
    \else
      \ifnum\eTeXversion>0\relax
        \etextrue
      \fi
    \fi
  \fi
\fi
%%\EmulatedPackage{ifetex}[2008/07/23]
}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
%  Having supplied an \cs{ifpdf} to check if pdfLaTeX is being used,
% here's one for XeTeX.
%
% \begin{macro}{\ifxetex}
% \begin{macro}{\xetextrue}
% \begin{macro}{\xetexfalse}
% \begin{macro}{\RequireXeTeX}
% Checks if XeTeX is being used.
% \changes{v1.61803}{2008/01/30}{Added checks for XeTeX (mempatch v4.9)}
% \changes{v1.6180339}{2008/07/23}{Use ifxetex package if available}
%    \begin{macrocode}
\newif\ifm@mifxetex
  \m@mifxetexfalse
\IfFileExists{ifxetex.sty}{\RequirePackage{ifxetex}\relax}{%
  \ClassWarningNoLine{memoir}{%
    The `ifxetex' package is not installed.\MessageBreak
    The package is being emulated}%
\newif\ifxetex
\@ifundefined{XeTeXrevision}{\xetexfalse}{\xetextrue}
%    \end{macrocode}
% Check for XeTeX from the \Lpack{ifxetex} package.
%    \begin{macrocode}
%%\EmulatedPackage{ifxetex}[2008/07/23]
}
\ifm@mifxetex
\def\RequireXeTeX{%
  \ifxetex\else
  \@memerror{XeTeX is required to process this document}%
            {Try again with xelatex, not (pdf)latex.\MessageBreak
             Or try removing any XeTeX package(s).}
  \fi}
\fi

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\ifluatex}
% \begin{macro}{\luatextrue}
% \begin{macro}{\luatexfalse}
% Check if \texttt{luatex} is being used. This is based on the check for 
% \texttt{pdf(latex)}. Someone may have created a package for this, or 
% perhaps not.
% \changes{v1.61803}{2008/01/30}{Added check for luatex}
% \changes{v1.6180339}{2008/07/23}{Use an ifluatex package if available}
%    \begin{macrocode}
\newif\ifm@mifluatex
  \m@mifluatexfalse
\IfFileExists{ifluatex.sty}{\RequirePackage{ifluatex}\relax}{%
  \ClassWarningNoLine{memoir}{%
    If there is an `ifluatex' package then it is not installed.\MessageBreak
    The package is being emulated}%
\m@mifluatextrue
\newif\ifluatex
  \luatexfalse
\ifx\luatexversion\@undefined
\else
  \ifx\luatexversion\undefined
  \else
    \ifx\luatexversion\relax
    \else
      \luatextrue
    \fi
  \fi
\fi
%%\EmulatedPackage{ifluatex}[2008/07/23]
}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \subsection{Extending an existing macro}
%
%
%    My usual technique for modifying the code of an existing
% macro was to use \cs{renewcommand}. However it slowly became apparent that
% many of such modifications merely consisted of adding some code at
% either the start or end of the existing definition. In June 2000 I 
% posed a question
% on the \texttt{comp.text.tex} newsgroup about this, and 
% Michael Downes\footnote{\texttt{epsmjd@ams.org}} and
% Heiko Oberdiek\footnote{\texttt{oberdiek@ruf.uni-freiburg.de}} 
% were kind enough to respond.
% The responses arrived almost simultaneously, both
% supplying methods for adding code at the end of a macro defined to take
% one argument. Michael Downes' response included a remark about it probably
% being too much effort to formulate a general way of doing this.
% Heiko Oberdiek almost immediately replied with such a generalisation.
%
%    The following code, which I have extracted from a package that I
% wrote but which I did not submit to CTAN, incorporates the work of both
% Michael and Heiko. I have added a bit. All errors are my responsibility.
% Michael went on the write the \Lpack{patchcmd} package which is
% a generalisation of the facilities below and so there was no need for
% my more restricted package.
% \changes{v0.33}{2001/08/31}{Replaced \cs{appendiarg} with \cs{addtodef}
%                             and friends}
%
% \begin{macro}{\wo@dmacro}
%    Heiko Oberdiek suggested\footnote{Via email on 2000/07/12.} that
% \meta{macro} should be tested for being the name of a macro, rather than
% using the normal \LaTeX{} test against it being undefined. He supplied
% the code for performing the macro name test.
%
% \cs{wo@dmacro} is a helper for handling the string `macro:'.
%    \begin{macrocode}
\edef\wo@dmacro{%
  \string m\string a\string c\string r\string o\string :%
}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\wo@difmacro@begingroup}
% This seems to take two arguments: 
% \cs{wo@difmacro@begingroup}\marg{macro}\marg{code}, where 
% \meta{macro} should be the name of a defined macro and \meta{code}
% is code to be executed if and only if \meta{macro} \emph{is} a
% defined macro.
%    \begin{macrocode}
\def\wo@difmacro@begingroup#1{%
%    \end{macrocode}
% Start a group.
%    \begin{macrocode}
  \begingroup
%    \end{macrocode}
% Test if \verb?#1? is a defined macro; \cs{wo@dparsemacro} does most of the work.
%    \begin{macrocode}
    \edef\x{%
      \noexpand\wo@dparsemacro\meaning#1\wo@dmacro\string -%
    }%
    \x\@nil{#1}%
}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\wo@dparsemacro}
% This is called by \cs{wo@difmacro@begingroup}. If \meta{macro} is not
% a defined macro it prints a warning and closes the group begun by
% \cs{wo@difmacro@begingroup}. Otherwise it process the \meta{code} which
% \emph{must} close the group.
%    \begin{macrocode}
\begingroup
  \edef\x{\endgroup
    \def\noexpand\wo@dparsemacro##1\wo@dmacro##2\string -}%
\x#3\@nil#4{%
  \ifx\\#3\\%
    \endgroup
    \@memwarn{\string `\string #4\string ' is not a macro}%
    \expandafter\@gobble
  \else
    \expandafter\@firstofone
  \fi
}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\addtodef}
% \begin{macro}{\addtodef*}
% \begin{macro}{\wo@daddtodef}
% The command \cs{addtodef}\marg{macro}\marg{start-stuff}\marg{end-stuff}
% adds stuff at the start and/or end of an argumentless  macro. 
% Initially the code for appending was a reimplementation of the
% kernel \cs{g@addto@macro} command (from \file{ltclass.dtx}).
% Later, at Michael Downes' suggestion, I combined
% appending and prepending stuff into a single command. 
% Actually, there is no real need to have both
% \cs{addtodef} and \cs{addtodef*} as the body of the command
% being amended has no argument,
% but both versions are provided for consistency.
%
%    The kernel \cs{@star@or@long} and \cs{l@ngrel@x} commands 
% (in \file{ltdefns.dtx}) are used to handle 
% the potential \verb?*? after the command name.
%    \begin{macrocode}
\def\addtodef{\@star@or@long\wo@daddtodef}
%    \end{macrocode}
% The \cs{@star@or@long} command dealt with a possible \verb?*? and now
% \cs{wo@daddtodef} does the work. It picks up the three arguments
% that the user thinks belong to \cs{addtodef}, namely \meta{macro},
% \meta{start-stuff} and \meta{end-stuff}.
%    \begin{macrocode}
\long\def\wo@daddtodef#1#2#3{%
%    \end{macrocode}
% Check if \meta{macro} has been defined. 
%    \begin{macrocode}
  \wo@difmacro@begingroup{#1}{%
%    \end{macrocode}
% If \meta{macro} is defined then store the tokens corresponding to the 
% body of \meta{macro} and the extra \meta{-stuff} in token registers.
%    \begin{macrocode}
    \@temptokena{#2}%
    \toks@\expandafter{#1#3}%
%    \end{macrocode}
% Do an expanded definition for \cs{x}, so that calling \cs{x}
% will \cs{def} a new version of \meta{macro}, whose body consists of the
% saved tokens (i.e., the orginal body plus the extra stuff). 
% As Michael Downes noted, single letter control sequences do not take any of
% \TeX's hash table space.
% \cs{l@ngrel@x}
% has been previously set to either \cs{long} or \cs{relax} by \cs{@star@or@long},
% and so may make the new definition of \meta{macro} to be \cs{long}. 
%    \begin{macrocode}
    \edef\x{\endgroup 
         \l@ngrel@x\def\noexpand#1{\the\@temptokena \the\toks@}}%
%    \end{macrocode}
% Finally, call \cs{x} to perform the new definition.
%    \begin{macrocode}
    \x
  }%
}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\addtoiargdef}
% \begin{macro}{\addtoiargdef*}
% \begin{macro}{\wo@daddtoiargdef}
%  This adds stuff at the start and/or end of a macro that takes one argument.
% It is a modification of Michael Downes' appending 
% code\footnote{Posted to \ctt{} on 15~June 2000,\\
% URL: \url{http://www.dejanews.com/getdoc.xp?AN=635057844}.}
% which was:
% \begin{small}\begin{verbatim}
% \def\appendef#1#2{%
%   \begingroup
%     \toks@\expandafter{#1{##1}#2}%
%     \edef\x{\endgroup \def\noexpand#1####1{\the\toks@}}%
%   \x}
% \end{verbatim}
% \par\end{small}
%
%    \begin{macrocode}
\def\addtoiargdef{\@star@or@long\wo@daddtoiargdef}
\long\def\wo@daddtoiargdef#1#2#3{%
  \wo@difmacro@begingroup{#1}{%
    \@temptokena{#2}%
    \toks@\expandafter{#1{##1}#3}%
    \edef\x{\endgroup 
       \l@ngrel@x\def\noexpand#1####1{\the\@temptokena \the\toks@}}%
    \x
  }%
}

%    \end{macrocode}
%    For the record, Heiko Oberdiek produced the following 
% version\footnote{Posted to \ctt{} on 16~June 2000,\\
% URL: \url{http://www.dejanews.com/getdoc.xp?AN=635095381}.}
% which avoids the use of a token register.
% \begin{small}\begin{verbatim}
% \newcommand{\appendiargdef}[2]{%
%   \long\expandafter\def\expandafter#1\expandafter
%   ##\expandafter1\expandafter{#1{##1}#2}}
% \end{verbatim}
% \par\end{small}
%
% \end{macro}
% \end{macro}
% \end{macro}
%
% Continuing the saga, Michael came up with a pretty general solution for
% modifying a macro with any number (up to 9) of arguments which he
% sent to me on 2000/07/13; this became
% the \Lpack{patchcmd} package which is on CTAN. I'm sure that Michael 
% would have given me permission to include it here if he had not tragically
% passed away in 2003. I miss his encouragement, advice, and skills.
%
% \begin{macro}{\patchcmd}
% \cs{patchcmd}\marg{macro}\marg{start-stuff}\marg{end-stuff} inserts
% \meta{start-stuff} at the beginning of the definition of \meta{macro}
% and \meta{end-stuff} at the end of the definition. \meta{macro}
% can have 0--9 arguments and be defined by \cs{newcommand} (and associates)
% or with \cs{DeclareRobustCommand}. For macros that use \cs{futurelet}
% (e.g., those with starred forms or optional arguments) only prepending
% works --- any non-empty \meta{end-stuff} will mess things up. \cs{patchcmd}
% does not work with macros that have delimited arguments.
% \changes{v1.618}{2005/09/05}{Added \cs{patchcmd}}
%
%    \begin{macrocode}
%%%%%%%%%%%%%%%% Michael Downes' patchcmd 2000/07/31 v1.03 %%%%%%%%
\newcommand{\patchcommand}[1]{%
  \expandafter\patchcmd@a\meaning#1??->@\@nil#1%
}
%    \end{macrocode}
% \end{macro}
% 
% \begin{macro}{\patchcmd@a}
%    \begin{macrocode}
\long\def\patchcmd@a#1#2#3->#4#5\@nil#6{%
  \ifx @#4\relax \patchcmdError#6#1%
    \expandafter\@gobbletwo % discard the other two arguments
  \else
    \if l#2\toks@{\patchcmd@e{}#6}% l in this position means \long
    \else \toks@{\patchcmd@e*#6}%   not \long
    \fi
    \patchcmd@b #3@#4#5 ? ? ? \@nil#6%
    \expandafter\the\expandafter\toks@
  \fi}
%    \end{macrocode}
% \end{macro}
% 
% \begin{macro}{\patchcmd@b}
%    \begin{macrocode}
\def\patchcmd@b#1:#2@#3#4 #5#6 #7 #8\@nil#9{%
  \if \ifx @#7@\expandafter
      \ifx\csname #6\endcsname#9T\else F\fi\else F\fi T%
    \toks@\expandafter{\expandafter\patchcommand\csname #6 \endcsname}%
  \else
    \ifx @#2@% No arguments
      \toks@\expandafter{\the\toks@ 0}%
    \else
      \patchcmd@c 0#2{\string##}0%
    \fi
  \fi}
%    \end{macrocode}
% \end{macro}
% 
% \begin{macro}{\patchcmd@c}
%    \begin{macrocode}
\def\patchcmd@c#1#2#3{%
  \if\string###2%      % yes it's a # token
    \ifodd 0#31 % and it's followed by a number
      \if 0#3\patchcmd@d#1\fi % number=0? then we're done
    \else \patchcmd@d D% # not a number: must be a delimited arg
    \fi
  \else \patchcmd@d D% not a # token: must be a delmited arg
  \fi
  \patchcmd@c#3}
%    \end{macrocode}
% \end{macro}
% 
% \begin{macro}{\patchcmd@d}
%    \begin{macrocode}
\def\patchcmd@d#1{%
  \if D#1%
%%%    \PackageError{patchcmd}{Cannot change a macro that has
%%%      delimited arguments}\@ehd
    \@memerror{%
      Cannot change a macro that has delimited arguments}{\@ehd}
  \else
    \toks@\expandafter{\the\toks@ #1}%
  \fi
  \begingroup
  \aftergroup\@gobble
  \let\patchcmd@c\endgroup}
%    \end{macrocode}
% \end{macro}
% 
% \begin{macro}{\patchcmd@e}
%    \begin{macrocode}
\def\patchcmd@e#1#2#3#4#5{%
  \begingroup
  \edef\@##1{%
    \@temptokena\noexpand\expandafter{%
      \noexpand#2%
        \ifnum#3>0 {####1}\ifnum#3>1 {####2}\ifnum#3>2 {####3}%
        \ifnum#3>3 {####4}\ifnum#3>4 {####5}\ifnum#3>5 {####6}%
        \ifnum#3>6 {####7}\ifnum#3>7 {####8}\ifnum#3>8 {####9}%
        \fi\fi\fi\fi\fi\fi\fi\fi\fi
      ##1%
    }%
  }
  \@{#5}%
  \edef\@##1{\endgroup
    \noexpand\renewcommand#1\noexpand#2\ifcase#3 \else [#3]\fi
    {##1\the\@temptokena}}%
  \@{#4}%
}
%    \end{macrocode}
% \end{macro}
% 
% \begin{macro}{\patchcmdError}
%    \begin{macrocode}
\long\def\patchcmdError#1#2{%
  \begingroup
  \toks@{Not redefinable}%
  \ifcat\relax\noexpand#1% Is it a control sequence?
    \begingroup
    \let#1=?\ifx ?\relax % Is it "\relax"?
      \endgroup % accept current value of \toks@
    \else \endgroup
      \if\ifx\relax#1u\else #2\fi u%
        \toks@{Not defined}%
      \fi
    \fi
  \fi
  \edef\@{\endgroup
%%%    \noexpand\PackageError{patchcmd}{%
%%%      \the\toks@: \string#1}\noexpand\@ehd}%
    \noexpand\@memerror{%
      \the\toks@: \string#1}\noexpand\@ehd}%
  \@}

%%%%%%%%%%%%%%%%%%%%% end of patchcmd code %%%%%%%%%%%%%%%%%%%%%%%%%%%

%    \end{macrocode}
% \end{macro}
% 
% Prevent later loading of the original \Lpack{patchcmd} package.
%    \begin{macrocode}
%%\@memfakeusepackage{patchcmd}

%    \end{macrocode}
% 
%
% \section{Declaration of Options} \label{sec:opt}
%
%
% \subsection{Setting Paper Sizes}
%
%    The variables \cs{paperheight} and \cs{paperwidth} should reflect the
%    physical paper size after trimming. 
%
%    Option \Lopt{letterpaper} will be the default.
%
% \begin{macro}{\stockheight}
% \begin{macro}{\stockwidth}
% \begin{macro}{\trimtop}
% \begin{macro}{\trimedge}
% The lengths \cs{stockheight} and \cs{stockwidth} should be the height and 
% width of the stock sheet before trimming. For example, this is the 
% physical size
% of a single sheet that might be laser-printed. The lengths \cs{trimtop}
% and \cs{trimedge} are the amount that will be trimmed off the top and fore
% edge of the physical sheet.
% For desk printer output the size of the trimmed sheet is often the
% same as the physical sheet. In other words the \cs{paper...} and \cs{stock...}
% sizes are the same and the trims are zero. This class assumes that this
% is the normal case.
%    \begin{macrocode}
\newlength{\stockheight}
\newlength{\stockwidth}
\newlength{\trimtop}
\newlength{\trimedge}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% The class provides an extended range of stock sizes. It may be useful at some
% point to have macros for these.
%
% \begin{macro}{\stockdbill}
% \begin{macro}{\stockstatement}
% \begin{macro}{\stockexecutive}
% \begin{macro}{\stockletter}
% \begin{macro}{\stockold}
% \begin{macro}{\stocklegal}
% \begin{macro}{\stockledger}
% \begin{macro}{\stockbroadsheet}
% US stock sizes.
% \changes{v1.61803}{2008/01/30}{Major expansion of stock size options}
%    \begin{macrocode}
\newcommand*{\stockdbill}     {\stockheight=7in    \stockwidth=3in}
\newcommand*{\stockstatement} {\stockheight=8.5in  \stockwidth=5.5in}
\newcommand*{\stockexecutive} {\stockheight=10.5in \stockwidth=7.25in}
\newcommand*{\stockletter}    {\stockheight=11in   \stockwidth=8.5in}
\newcommand*{\stockold}       {\stockheight=12in   \stockwidth=9in}
\newcommand*{\stocklegal}     {\stockheight=14in   \stockwidth=8.5in}
\newcommand*{\stockledger}    {\stockheight=17in   \stockwidth=11in}
\newcommand*{\stockbroadsheet}{\stockheight=22in   \stockwidth=17in}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\stockpottvo}
% \begin{macro}{\stockfoolscapvo}
% \begin{macro}{\stockcrownvo}
% \begin{macro}{\stockpostvo}
% \begin{macro}{\stocklargecrownvo}
% \begin{macro}{\stocklargepostvo}
% \begin{macro}{\stocksmalldemyvo}
% Traditional British octavo sizes.
%    \begin{macrocode}
\newcommand*{\stockpottvo}      {\stockheight=6.25in \stockwidth=4in}
\newcommand*{\stockfoolscapvo}  {\stockheight=6.75in \stockwidth=4.25in}
\newcommand*{\stockcrownvo}     {\stockheight=7.5in  \stockwidth=5in}
\newcommand*{\stockpostvo}      {\stockheight=8in    \stockwidth=5in}
\newcommand*{\stocklargecrownvo}{\stockheight=8in    \stockwidth=5.25in}
\newcommand*{\stocklargepostvo} {\stockheight=8.25in \stockwidth=5.25in}
\newcommand*{\stocksmalldemyvo} {\stockheight=8.5in  \stockwidth=5.675in}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\stockdemyvo}
% \begin{macro}{\stockmediumvo}
% \begin{macro}{\stocksmallroyalvo}
% \begin{macro}{\stockroyalvo}
% \begin{macro}{\stocksuperroyalvo}
% \begin{macro}{\stockimperialvo}
%    \begin{macrocode}
\newcommand*{\stockdemyvo}      {\stockheight=8.75in  \stockwidth=5.675in}
\newcommand*{\stockmediumvo}    {\stockheight=9in     \stockwidth=5.75in}
\newcommand*{\stocksmallroyalvo}{\stockheight=9.25in  \stockwidth=6.175in}
\newcommand*{\stockroyalvo}     {\stockheight=10in    \stockwidth=6.25in}
\newcommand*{\stocksuperroyalvo}{\stockheight=10.25in \stockwidth=6.75in}
\newcommand*{\stockimperialvo}  {\stockheight=11in    \stockwidth=7.5in}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% 
% \begin{macro}{\stockmcrownvo}
% \begin{macro}{\stockmlargecrownvo}
% \begin{macro}{\stockmdemyvo}
% \begin{macro}{\stockmsmallroyalvo}
% Metric stock sizes.
%    \begin{macrocode}
\newcommand*{\stockmcrownvo}      {\stockheight=186mm \stockwidth=123mm}
\newcommand*{\stockmlargecrownvo} {\stockheight=198mm \stockwidth=129mm}
\newcommand*{\stockmdemyvo}       {\stockheight=216mm \stockwidth=138mm}
\newcommand*{\stockmsmallroyalvo} {\stockheight=234mm \stockwidth=156mm}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\stockaiii}
% \begin{macro}{\stockaiv}
% \begin{macro}{\stockav}
% \begin{macro}{\stockavi}
% The A series, A3 --- A6.
%    \begin{macrocode}
\newcommand*{\stockaiii}{\stockheight=420mm \stockwidth=297mm}
\newcommand*{\stockaiv} {\stockheight=297mm \stockwidth=210mm}
\newcommand*{\stockav}  {\stockheight=210mm \stockwidth=148mm}
\newcommand*{\stockavi} {\stockheight=148mm \stockwidth=105mm}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\stockbiii}
% \begin{macro}{\stockbiv}
% \begin{macro}{\stockbv}
% \begin{macro}{\stockbvi}
% The B series, B3 --- B6.
%    \begin{macrocode}
\newcommand*{\stockbiii}{\stockheight=500mm \stockwidth=353mm}
\newcommand*{\stockbiv} {\stockheight=353mm \stockwidth=250mm}
\newcommand*{\stockbv}  {\stockheight=250mm \stockwidth=176mm}
\newcommand*{\stockbvi} {\stockheight=176mm \stockwidth=125mm}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
%    It will be useful also to provide macros that set the page sizes.
%
% \begin{macro}{\pagedbill}
% \begin{macro}{\pagestatement}
% \begin{macro}{\pageexecutive}
% \begin{macro}{\pageletter}
% \begin{macro}{\pageold}
% \begin{macro}{\pagelegal}
% \begin{macro}{\pageledger}
% \begin{macro}{\pagebroadsheet}
% US page sizes.
%    \begin{macrocode}
\newcommand*{\pagedbill}     {\pageheight=7in    \pagewidth=3in}
\newcommand*{\pagestatement} {\pageheight=8.5in  \pagewidth=5.5in}
\newcommand*{\pageexecutive} {\pageheight=10.5in \pagewidth=7.25in}
\newcommand*{\pageletter}    {\pageheight=11in   \pagewidth=8.5in}
\newcommand*{\pageold}       {\pageheight=12in   \pagewidth=9in}
\newcommand*{\pagelegal}     {\pageheight=14in   \pagewidth=8.5in}
\newcommand*{\pageledger}    {\pageheight=17in   \pagewidth=11in}
\newcommand*{\pagebroadsheet}{\pageheight=22in   \pagewidth=17in}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% 
% \begin{macro}{\pagepottvo}
% \begin{macro}{\pagefoolscapvo}
% \begin{macro}{\pagecrownvo}
% \begin{macro}{\pagepostvo}
% \begin{macro}{\pagelargecrownvo}
% \begin{macro}{\pagelargepostvo}
% \begin{macro}{\pagesmalldemyvo}
% British traditional page sizes, octavo.
%    \begin{macrocode}
\newcommand*{\pagepottvo}      {\pageheight=6.25in \pagewidth=4in}
\newcommand*{\pagefoolscapvo}  {\pageheight=6.75in \pagewidth=4.25in}
\newcommand*{\pagecrownvo}     {\pageheight=7.5in  \pagewidth=5in}
\newcommand*{\pagepostvo}      {\pageheight=8in    \pagewidth=5in}
\newcommand*{\pagelargecrownvo}{\pageheight=8in    \pagewidth=5.25in}
\newcommand*{\pagelargepostvo} {\pageheight=8.25in \pagewidth=5.25in}
\newcommand*{\pagesmalldemyvo} {\pageheight=8.5in  \pagewidth=5.675in}
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\pagedemyvo}
% \begin{macro}{\pagemediumvo}
% \begin{macro}{\pagesmallroyalvo}
% \begin{macro}{\pageroyalvo}
% \begin{macro}{\pagesuperroyalvo}
% \begin{macro}{\pageimperialvo}
%    \begin{macrocode}
\newcommand*{\pagedemyvo}      {\pageheight=8.75in  \pagewidth=5.675in}
\newcommand*{\pagemediumvo}    {\pageheight=9in     \pagewidth=5.75in}
\newcommand*{\pagesmallroyalvo}{\pageheight=9.25in  \pagewidth=6.175in}
\newcommand*{\pageroyalvo}     {\pageheight=10in    \pagewidth=6.25in}
\newcommand*{\pagesuperroyalvo}{\pageheight=10.25in \pagewidth=6.75in}
\newcommand*{\pageimperialvo}  {\pageheight=11in    \pagewidth=7.5in}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% 
% \begin{macro}{\pagemcrownvo}
% \begin{macro}{\pagemlargecrownvo}
% \begin{macro}{\pagemdemyvo}
% \begin{macro}{\pagemsmallroyalvo}
% Metric sizes.
%    \begin{macrocode}
\newcommand*{\pagemcrownvo}      {\pageheight=186mm \pagewidth=123mm}
\newcommand*{\pagemlargecrownvo} {\pageheight=198mm \pagewidth=129mm}
\newcommand*{\pagemdemyvo}       {\pageheight=216mm \pagewidth=138mm}
\newcommand*{\pagemsmallroyalvo} {\pageheight=234mm \pagewidth=156mm}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\pageaiii}
% \begin{macro}{\pageaiv}
% \begin{macro}{\pageav}
% \begin{macro}{\pageavi}
% The A series, A3 --- A6.
%    \begin{macrocode}
\newcommand*{\pageaiii}{\pageheight=420mm \pagewidth=297mm}
\newcommand*{\pageaiv} {\pageheight=297mm \pagewidth=210mm}
\newcommand*{\pageav}  {\pageheight=210mm \pagewidth=148mm}
\newcommand*{\pageavi} {\pageheight=148mm \pagewidth=105mm}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\pagebiii}
% \begin{macro}{\pagebiv}
% \begin{macro}{\pagebv}
% \begin{macro}{\pagebvi}
% The B series, B3 --- B6.
%    \begin{macrocode}
\newcommand*{\pagebiii}{\pageheight=500mm \pagewidth=353mm}
\newcommand*{\pagebiv} {\pageheight=353mm \pagewidth=250mm}
\newcommand*{\pagebv}  {\pageheight=250mm \pagewidth=176mm}
\newcommand*{\pagebvi} {\pageheight=176mm \pagewidth=125mm}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
%    Declare the stock size options.
%
% Metric paper stock sizes.
%    \begin{macrocode}
\DeclareOption{a3paper}{\stockaiii}
\DeclareOption{a4paper}{\stockaiv}
\DeclareOption{a5paper}{\stockav}
\DeclareOption{a6paper}{\stockavi}
\DeclareOption{b3paper}{\stockbiii}
\DeclareOption{b4paper}{\stockbiv}
\DeclareOption{b5paper}{\stockbv}
\DeclareOption{b6paper}{\stockbvi}
\DeclareOption{mcrownvopaper}{\stockmcrownvo}
\DeclareOption{mlargecrownvopaper}{\stockmlargecrownvo}
\DeclareOption{mdemyvopaper}{\stockmdemyvo}
\DeclareOption{msmallroyalvopaper}{\stockmsmallroyalvo}

%    \end{macrocode}
% US paper stock sizes.
%    \begin{macrocode}
\DeclareOption{dbillpaper}{\stockdbill}
\DeclareOption{statementpaper}{\stockstatement}
\DeclareOption{executivepaper}{\stockexecutive}
\DeclareOption{letterpaper}{\stockletter}
\DeclareOption{oldpaper}{\stockold}
\DeclareOption{legalpaper}{\stocklegal}
\DeclareOption{ledgerpaper}{\stockledger}
\DeclareOption{broadsheetpaper}{\stockbroadsheet}

%    \end{macrocode}
% British octavo stock paper sizes.
%    \begin{macrocode}
\DeclareOption{pottvopaper}{\stockpottvo}
\DeclareOption{foolscapvopaper}{\stockfoolscapvo}
\DeclareOption{crownvopaper}{\stockcrownvo}
\DeclareOption{postvopaper}{\stockpostvo}
\DeclareOption{largecrownvopaper}{\stocklargecrownvo}
\DeclareOption{largepostvopaper}{\stocklargepostvo}
\DeclareOption{smalldemyvopaper}{\stocksmalldemyvo}
\DeclareOption{demyvopaper}{\stockdemyvo}
\DeclareOption{mediumvopaper}{\stockmediumvo}
\DeclareOption{smallroyalvopaper}{\stocksmallroyalvo}
\DeclareOption{royalvopaper}{\stockroyalvo}
\DeclareOption{superroyalvopaper}{\stocksuperroyalvo}
\DeclareOption{imperialvopaper}{\stockimperialvo}

%    \end{macrocode}
% Ebook.
%    \begin{macrocode}
\DeclareOption{ebook}
   {\setlength\stockheight {9in}%
    \setlength\stockwidth  {6in}}

%    \end{macrocode}
%
%    The \Lopt{landscape} option switches the values of the height and width,
% assuming that the dimensions were originally given for portrait 
% orientation.
%    \begin{macrocode}
\DeclareOption{landscape}
  {\setlength\@tempdima  {\stockheight}
   \setlength\stockheight{\stockwidth}
   \setlength\stockwidth {\@tempdima}}

%    \end{macrocode}
%
%
% \subsection{Choosing the type size}
%
%    The type size options are handled by defining \cs{@ptsize} to contain
%    the last digit of the size in question and branching on \cs{ifcase}
%    statements. This is done for historical reasons to stay compatible
%    with other packages that use the \cs{@ptsize} variable to select
%    special actions. It makes the declarations of size options less
%    than 10pt or more than 20pt difficult. In this class \texttt{9} is used 
%    for the \Lopt{9pt} option, assuming that the class will never define a 
%    \Lopt{19pt} option. For larger options the full complement of digits 
%    are used.
%
%    In any event, \cs{@memptsize} holds the complete size.
%
%    Option \Lopt{10pt} will be the default.
% \changes{v1.2}{2002/07/07}{Added 17pt option}
% \changes{v1.61803}{2008/01/30}{Added pt options 20 to 60.}
% \changes{v1.61803}{2008/01/30}{Used \cs{@memptsize}}
%    \begin{macrocode}
\renewcommand*{\@ptsize}{0}
\renewcommand*{\@memptsize}{10}
\DeclareOption{9pt}{\renewcommand*{\@ptsize}{9}\renewcommand*{\@memptsize}{9}}
\DeclareOption{10pt}{\renewcommand*{\@ptsize}{0}\renewcommand*{\@memptsize}{10}}
\DeclareOption{11pt}{\renewcommand*{\@ptsize}{1}\renewcommand*{\@memptsize}{11}}
\DeclareOption{12pt}{\renewcommand*{\@ptsize}{2}\renewcommand*{\@memptsize}{12}}
\DeclareOption{14pt}{\renewcommand*{\@ptsize}{4}\renewcommand*{\@memptsize}{14}}
\DeclareOption{17pt}{\renewcommand*{\@ptsize}{7}\renewcommand*{\@memptsize}{17}}
\DeclareOption{20pt}{\renewcommand*{\@ptsize}{20}\renewcommand*{\@memptsize}{20}}
\DeclareOption{25pt}{\renewcommand*{\@ptsize}{25}\renewcommand*{\@memptsize}{25}}
\DeclareOption{30pt}{\renewcommand*{\@ptsize}{30}\renewcommand*{\@memptsize}{30}}
\DeclareOption{36pt}{\renewcommand*{\@ptsize}{36}\renewcommand*{\@memptsize}{36}}
\DeclareOption{48pt}{\renewcommand*{\@ptsize}{48}\renewcommand*{\@memptsize}{48}}
\DeclareOption{60pt}{\renewcommand*{\@ptsize}{60}\renewcommand*{\@memptsize}{60}}

%    \end{macrocode}
%
% \begin{macro}{\if@nyptsizeopt}
% \begin{macro}{\@nyptsizeopttrue}
% \begin{macro}{\@nyptsizeoptfalse}
% \begin{macro}{\anyptfilebase}
% \begin{macro}{\anyptsize}
%   For any point size:
% \changes{v1.61803}{2008/02/29}{Added *pt option}
%    \begin{macrocode}
\newif\if@nyptsizeopt
  \@nyptsizeoptfalse
\providecommand*{\anyptfilebase}{mem}
\providecommand*{\anyptsize}{10}
\DeclareOption{*pt}{\@nyptsizeopttrue}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
%
%  \subsection{Two-side or one-side printing}
%
%    For two-sided printing we use the switch \cs{if@twoside}. In
%    addition we have to set the \cs{if@mparswitch} to get any margin
%    paragraphs into the outside margin. The default is \Lopt{twoside}.
% \begin{macro}{\if@twoside}
% \begin{macro}{\if@mparswitch}
%    \begin{macrocode}
\DeclareOption{twoside}{\@twosidetrue  \@mparswitchtrue}
\DeclareOption{oneside}{\@twosidefalse \@mparswitchfalse}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%
%  \subsection{Two column printing}
%
%    Two-column and one-column printing is again realized via a switch
%    which is defined in the kernel. The default is single column printing.
%
% \begin{macro}{\if@twocolumn}
%    \begin{macrocode}
\DeclareOption{onecolumn}{\@twocolumnfalse}
\DeclareOption{twocolumn}{\@twocolumntrue}
%    \end{macrocode}
% \end{macro}
%
%
%  \subsection{The \Lopt{draft} option}
%
%    If the user requests \Lopt{draft} we show any overfull boxes,
%    marginal notes are allowed, and any copyright notices are not
%    printed. For symmetry, we also define a \Lopt{final} option
%    which is the default.
%
%    The user can use the \cs{ifdraftdoc} flag to add additional effects: \\
% \verb?\ifdraftdoc <additional code> \fi?
% \begin{macro}{\ifdraftdoc}
%    \begin{macrocode}
\newif\ifdraftdoc\draftdocfalse
\setlength{\overfullrule}{\z@}
\DeclareOption{final}{\setlength{\overfullrule}{\z@}
                      \draftdocfalse
                      \msdocfalse}
\DeclareOption{draft}{\setlength\overfullrule{5pt}%
                      \draftdoctrue
                      \msdocfalse}
%    \end{macrocode}
% \end{macro}
%
% \subsection{The \Lopt{ms} option}
%
% \begin{macro}{\ifmsdoc}
%    The \Lopt{ms} option makes the document look as though it was produced
% on a typewriter. We use a flag for remembering this. The user may also
% use the flag for specifying \Lopt{ms} effects.
%    \begin{macrocode}
\newif\ifmsdoc
  \msdocfalse
\DeclareOption{ms}{%
  \msdoctrue
  \draftdocfalse
  \setlength\overfullrule{\z@}
}

%    \end{macrocode}
% \end{macro}
%
% \subsection{The \Lopt{showtrims} option}
%
%    The \Lopt{showtrims} option will display crosses at the corners
% of the logical pages showing where the stock should be trimmed.
%
% \begin{macro}{\ifshowtrims}
%    \begin{macrocode}
\newif\ifshowtrims
  \showtrimsfalse
\DeclareOption{showtrims}{\showtrimstrue}

%    \end{macrocode}
% \end{macro}
%
% \subsection{The \Lopt{article} option}
%
%    The \Lopt{article} option typesets as a simulation of the
% \Lpack{article} class.
% \changes{v0.3}{2001/07/09}{Added article option}
% \begin{macro}{\ifartopt}
% \cs{ifartopt} is a flag (TRUE) if the \Lopt{article} option is called.
%    \begin{macrocode}
\newif\ifartopt
  \artoptfalse
\DeclareOption{article}{\artopttrue}

%    \end{macrocode}
% \end{macro}
%
% \subsection{The \Lopt{subfigure} option}
%
% The \Lopt{subfigure} option has been made a no-op since version 1.1
% and finally removed in version 1.61803. It was:
% \changes{v0.3}{2001/07/09}{Added subfigure option}
% \changes{v1.1}{2002/03/10}{Effectively removed subfigure option}
% \changes{v1.61803}{2008/01/30}{Removed subfigure option}
% \begin{verbatim}
% \DeclareOption{subfigure}{%
%   \ClassWarningNoLine{memoir}{The subfigure option is not required}}
% \end{verbatim}
%
% \subsection{The openright, openleft and openany options}
%
%    The \Lopt{openright} option specifies that Chapters must begin on 
% recto pages. The \Lopt{openleft} option specifies that Chapters
% must begin on verso pages and the \Lopt{openany} option lets Chapters 
% start on any page.
% \changes{v1.0}{2001/10/24}{Added the openleft option}
%    \begin{macrocode}
\DeclareOption{openright}{\@openrighttrue}
\DeclareOption{openany}{\@openrightfalse}
\DeclareOption{openleft}{\@openlefttrue}
%    \end{macrocode}
%
% \begin{macro}{\openright}
% \begin{macro}{\openany}
% \begin{macro}{\openleft}
% Commands that can be used to change the option in the middle of the 
% document\footnote{Openleft provided to meet a request by 
% Vladimir G.~Ivanovic (\texttt{vladimir@acm.org}) in September 2001.}.
%    \begin{macrocode}
\newcommand{\openright}{\@openrighttrue\@openleftfalse%
  \gdef\clearforchapter{\cleartorecto}}
\newcommand{\openany}{\@openrightfalse\@openleftfalse%
  \gdef\clearforchapter{\clearpage}}
\newcommand{\openleft}{\@openlefttrue
  \gdef\clearforchapter{\cleartoverso}}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
%
% \subsection{Equation numbering on the left}
%
% The \Lopt{leqno} option prints equation numbers on the left. This
% is implemented via an external class option file.
%    \begin{macrocode}
\DeclareOption{leqno}{\input{leqno.clo}}
%    \end{macrocode}
%
% \subsection{Flush left math displays}
%
% The \Lopt{fleqn} option redefines the displayed math environments
% so that they are left adjusted with an indent of \cs{mathindent}
% from the current left margin. This
% is implemented via an external class option file.
%    \begin{macrocode}
\DeclareOption{fleqn}{\input{fleqn.clo}}
%    \end{macrocode}
%
% \subsection{Open bibliography}
%
% The \Lopt{openbib} option redefines the \verb?thebibliography? so that each
% block starts on a new line, and succeeding lines in a block are
% indented by \cs{bibindent}.
% \changes{v1.0a}{2001/11/28}{Replaced \cs{AtEndOfPackage} with \cs{AtEndOfClass}}
%    \begin{macrocode}
\DeclareOption{openbib}{%
  \AtEndOfClass{%
    \renewcommand\@openbib@code{%
      \advance\leftmargin\bibindent
      \itemindent -\bibindent
      \listparindent \itemindent
      \parsep \z@
     }%
    \renewcommand\newblock{\par}}}

%    \end{macrocode}
%
% \subsection{Old font commands}
%
% The \Lopt{oldfontcommands} option enables commands like \cs{bf} and friends.
% \changes{v1.0a}{2002/01/29}{Added the oldfontcommands option}
%    \begin{macrocode}
\DeclareOption{oldfontcommands}{\@memoldfonttrue}
%    \end{macrocode}
%
% \subsection{Extra font sizes}
%
% The \Lopt{extrafontsizes} options indicates that extended font sizes (above 25pt)
% are available.
% \changes{v1.61803}{2008/01/30}{Added extrafontsizes option.}
%    \begin{macrocode}
\DeclareOption{extrafontsizes}{\extrafontsizestrue}

%    \end{macrocode}
%
%
% \section{Executing Options} \label{sec:xopt}
%
%    Here we execute the default options to initialize certain
%    variables. 
%    \begin{macrocode}
\ExecuteOptions{final,letterpaper,10pt,onecolumn,openright,twoside}
%    \end{macrocode}
%
%    The \cs{ProcessOptions} command causes the execution of the code
%    for every option \Lopt{foo}
%    which is declared and for which the user typed
%    the \Lopt{foo} option in his
%    \cs{documentclass} command.  For every option \Lopt{bar} he typed,
%    which is not declared, the option is assumed to be a global option.
%    All options will be passed as document options to any
%    \cs{usepackage} command in the document preamble.
%    \begin{macrocode}
\ProcessOptions

%    \end{macrocode}
%
% \begin{macro}{\memoirpostopthook}
% A user could define this \emph{before} the \cs{documentclass} command
% to do something at this point. For example, to set up a new stock size: \\
% \verb?\def\memoirpostopthook{\stockheight=44in \stockwidth=34in}?
% \changes{v1.618033}{2008/06/02}{Added \cs{memoirpostopthook}}
%    \begin{macrocode}
\providecommand*{\memoirpostopthook}{}
  \memoirpostopthook

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\cleartorecto}
% A repeat of \cs{cleardoublepage}; clears to a recto (odd-numbered) page.
%    \begin{macrocode}
\def\cleartorecto{\clearpage\if@twoside \ifodd\c@page\else
  \hbox{}\thispagestyle{cleared}%
  \newpage\if@twocolumn\hbox{}\newpage\fi\fi\fi}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\cleartoverso}
% Clears to a verso (even-numbered) page.
%    \begin{macrocode}
\def\cleartoverso{\clearpage\if@twoside 
  \ifodd\c@page\hbox{}\thispagestyle{cleared}%
  \newpage\if@twocolumn\hbox{}\newpage\fi\fi\fi}

%    \end{macrocode}
% \end{macro}
%

%    Set \cs{clearforchapter} according to the options.
%    \begin{macrocode}
\if@openleft
  \openleft
\else
  \if@openright
    \openright
  \else
    \openany
  \fi
\fi

%    \end{macrocode}
%
% \begin{macro}{\@ivpt}
% \begin{macro}{\@xxxpt}
% \begin{macro}{\@xxxvipt}
% \begin{macro}{\@xlviiipt}
% \begin{macro}{\@lxpt}
% \begin{macro}{\@lxxiipt}
% \begin{macro}{\@lxxxivpt}
% \begin{macro}{\@xcvipt}
% \begin{macro}{\@cviiipt}
% \begin{macro}{\@cxxpt}
% \begin{macro}{\@cxxxiipt}
% \changes{v1.61803}{2008/01/30}{Added a bunch of \cs{@...pt} macros}
%    \begin{macrocode}
\newcommand*{\@ivpt}{4}
\newcommand*{\@xxxpt}{30}
\newcommand*{\@xxxvipt}{36}
\newcommand*{\@xlviiipt}{48}
\newcommand*{\@lxpt}{60}
\newcommand*{\@lxxiipt}{72}
\newcommand*{\@lxxxivpt}{84}
\newcommand*{\@xcvipt}{96}
\newcommand*{\@cviiipt}{108}
\newcommand*{\@cxxpt}{120}
\newcommand*{\@cxxxiipt}{132}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
%  Now that all the options have been executed we can load the
%  chosen class option file that contains all size dependent code. The 
% larger sizes are only made available for the \Lopt{extrafontsizes} option.
%
% \begin{macro}{\memfontfamily}
% \begin{macro}{\memfontenc}
% \begin{macro}{\memfontpack}
%  The default font and coding as set by the kernel is \texttt{cmr} and
% \texttt{OT1} respectively, giving Knuth's original Computer Modern Roman
% font at a set of fixed sizes (maximum of 24.88pt). If we are to have
% any size font we have to go to a scaleable font. As the Latin Modern font
% is a scaleable version of Computer Modern, and all modern LaTeX distributions
% include it, I am using this by default. 
%
% By defining these three macros \emph{before}
% the \cs{documentclass} any other font and package can be used.
%    \begin{macrocode}
\providecommand*{\memfontfamily}{lmr}
\providecommand*{\memfontenc}{T1}
\providecommand*{\memfontpack}{lmodern}

%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% Deal with the `anyptsize' (\Lopt{*pt}) option first. In this case the macros
% \cs{anyptfilebase} and \cs{anyptsize} should have been defined by the
% author \emph{before} the \cs{documentclass} command, and a file \\
% \verb?\anyptfilebase\anyptsize.clo? should exist (if not the file will
% default to \verb?mem10.clo?).
% \changes{v1.61803}{2008/01/30}{Extended the loading of \texttt{.clo} files.}
%    \begin{macrocode}
\if@nyptsizeopt
  \newcommand*{\@nyptclofile}{\anyptfilebase\anyptsize.clo}
  \IfFileExists{\@nyptclofile}{\def\@memptsize{\anyptsize}}{%
    \@memerror{You have used the `*pt' option but \MessageBreak 
               file \@nyptclofile\space can't be found}%
              {I'll use mem10.clo instead}
    \renewcommand*{\@nyptclofile}{mem10.clo}%
    \def\@memptsize{10}%
  }
  \renewcommand*{\@ptsize}{\@memptsize}
  \usefont{\memfontenc}{\memfontfamily}{m}{n}
  \input{\@nyptclofile}
  \usepackage{\memfontpack}\usepackage[\memfontenc]{fontenc}
\else
%    \end{macrocode}
% Now for the fixed pt size options.
%    \begin{macrocode}
  \ifextrafontsizes
    \usefont{\memfontenc}{\memfontfamily}{m}{n}
    \input{mem\@memptsize.clo}
    \usepackage{\memfontpack}\usepackage[\memfontenc]{fontenc}
  \else
    \ifnum\@memptsize > 17\relax
      \@memerror{The `extrafontsizes' option is required to use \MessageBreak
                 the `\@memptsize pt' option}%
                {The 17pt option will be used instead}
      \input{mem17.clo}
    \else
      \ifnum\@ptsize = 9\relax
        \input{mem\@ptsize.clo}
      \else
        \input{mem1\@ptsize.clo}
      \fi
    \fi
  \fi
\fi

%</class>
%    \end{macrocode}
%
%
% \section{Fonts and spaces} \label{sec:docl}
% \label{sec:maincode}
%
%  In this section we deal with most of the aspects that are related
% to font sizes, and spacing that is related to the size of the body font.
%
% \subsection{Fonts}
%
%    \LaTeX\ offers the user commands to change the size of the font,
%    relative to the `main' size. Each relative size changing command
%    \cs{size} executes the command
%    \verb?\@setfontsize\size? \meta{font-size} \meta{baselineskip} where:
%
%    \begin{description}
%    \item[\meta{font-size}] The absolute size of the font to use from
%        now on.
%
%    \item[\meta{baselineskip}] The normal value of \cs{baselineskip}
%        for the size of the font selected. (The actual value will be
%        \cs{baselinestretch} * \meta{baselineskip}.)
%    \end{description}
%
%    A number of commands, defined in the \LaTeX\ kernel, shorten the
%    following  definitions and are used throughout. They are listed in 
% the first part of Table~\ref{tab:sh}. Those in the second part are introduced
% by the class.
%
% \begin{table}
% \centering
% \caption{Shorthand font point size commands}\label{tab:sh}
% \begin{tabular}{ll@{\qquad}ll@{\qquad}ll} \hline
%            &   &            &   & \cs{@ivpt}   & 4 \\
%  \cs{@vpt} & 5 & \cs{@vipt} & 6 & \cs{@viipt} & 7 \\
%  \cs{@viiipt} & 8 & \cs{@ixpt} & 9 & \cs{@xpt} & 10 \\
%  \cs{@xipt} & 10.95 & \cs{@xiipt} & 12 & \cs{@xivpt} & 14.4\\
%  \cs{@xviipt} & 17.28 & \cs{@xxpt} & 20.74 & \cs{@xxvpt} & 24.88\\ \hline
%  \cs{@xxxpt}  & 30    & \cs{@xxxvipt} & 36 & \cs{@xlviiipt} & 48 \\
%  \cs{@lxpt} & 60 & \cs{@lxxiipt} & 72 & \cs{@lxxxivpt} & 84 \\ 
%  \cs{@xcvipt} & 96 & \cs{@cviiipt} & 108 & \cs{@cxxpt} & 120 \\
%  \cs{@cxxxiipt} & 132 \\ \hline
%  \end{tabular}
%  \end{table}
%
% \begin{macro}{\normalsize}
% \begin{macro}{\@normalsize}
%
%    The user level command for the main size is \cs{normalsize}.
%    Internally \LaTeX\ uses \cs{@normalsize} when it refers to the
%    main size. \cs{@normalsize} will be defined to work like
%    \cs{normalsize} if the latter is redefined from its default
%    definition (that just issues an error message). Otherwise, in the standard
% classes \cs{@normalsize} simply selects a 10pt/12pt size, but here
% it selects among the wider range.
%
%    The \cs{normalsize} macro also sets new values for\\
%    \cs{abovedisplayskip}, \cs{abovedisplayshortskip} and
%    \cs{belowdisplayshortskip}.
%
% For the larger sizes I have set \cs{abovedisplayskip} to the font size
% and \cs{belowdisplayshortskip} to 0.5\cs{onelineskip}.
%
%    \begin{macrocode}
%<*9pt|10pt|11pt|12pt|14pt|17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%    \end{macrocode}
% \changes{v0.11 (mem14.clo)}{2001/10/30}{Changed baseline skip from 17.28pt to 17.5pt}
% \changes{v1.61803}{2008/01/30}{Added files mem20.clo through mem60.clo}
% \changes{v1.61803}{2008/01/30}{Changed .clo files to accomodate \cs{extrafontsizes}}
%    \begin{macrocode}
\renewcommand{\normalsize}{%
%<*9pt>
   \@setfontsize\normalsize\@ixpt\@xpt
   \abovedisplayskip 9\p@ \@plus 2\p@ \@minus 4.5\p@
   \abovedisplayshortskip \z@ \@plus 3\p@
   \belowdisplayshortskip 5.5\p@ \@plus 2.5\p@ \@minus 3\p@
%</9pt>
%<*10pt>
   \@setfontsize\normalsize\@xpt\@xiipt
   \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6\p@ \@plus3\p@ \@minus3\p@
%</10pt>
%<*11pt>
   \@setfontsize\normalsize\@xipt{13.6}%
   \abovedisplayskip 11\p@ \@plus3\p@ \@minus6\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6.5\p@ \@plus3.5\p@ \@minus3\p@
%</11pt>
%<*12pt>
   \@setfontsize\normalsize\@xiipt{14.5}%
   \abovedisplayskip 12\p@ \@plus3\p@ \@minus7\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6.5\p@ \@plus3.5\p@ \@minus3\p@
%</12pt>
%<*14pt>
   \@setfontsize\normalsize\@xivpt{17.5}%
   \abovedisplayskip 14\p@ \@plus3\p@ \@minus8\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 7\p@ \@plus3.5\p@ \@minus3\p@
%</14pt>
%<*17pt>
   \@setfontsize\normalsize\@xviipt{22}%
   \abovedisplayskip 15\p@ \@plus4\p@ \@minus8\p@
   \abovedisplayshortskip \z@ \@plus4\p@
   \belowdisplayshortskip 8\p@ \@plus4\p@ \@minus3\p@
%</17pt>
%<*20pt>
   \@setfontsize\normalsize\@xxpt{25}%
   \abovedisplayskip 20\p@ \@plus5\p@ \@minus9\p@
   \abovedisplayshortskip \z@ \@plus5\p@
   \belowdisplayshortskip 12.5\p@ \@plus6\p@ \@minus3\p@
%</20pt>
%<*25pt>
   \@setfontsize\normalsize\@xxvpt{30}%
   \abovedisplayskip 25\p@ \@plus6\p@ \@minus10\p@
   \abovedisplayshortskip \z@ \@plus6\p@
   \belowdisplayshortskip 15\p@ \@plus7.5\p@ \@minus4\p@
%</25pt>
%<*30pt>
   \@setfontsize\normalsize\@xxxpt{37}%
   \abovedisplayskip 30\p@ \@plus7\p@ \@minus11\p@
   \abovedisplayshortskip \z@ \@plus7\p@
   \belowdisplayshortskip 18\p@ \@plus9\p@ \@minus4\p@
%</30pt>
%<*36pt>
   \@setfontsize\normalsize\@xxxvipt{45}%
   \abovedisplayskip 36\p@ \@plus8\p@ \@minus12\p@
   \abovedisplayshortskip \z@ \@plus8\p@
   \belowdisplayshortskip 22\p@ \@plus11\p@ \@minus5\p@
%</36pt>
%<*48pt>
   \@setfontsize\normalsize\@xlviiipt{60}%
   \abovedisplayskip 48\p@ \@plus9\p@ \@minus13\p@
   \abovedisplayshortskip \z@ \@plus9\p@
   \belowdisplayshortskip 30\p@ \@plus15\p@ \@minus7\p@
%</48pt>
%<*60pt>
   \@setfontsize\normalsize\@lxpt{72}%
   \abovedisplayskip 60\p@ \@plus10\p@ \@minus14\p@
   \abovedisplayshortskip \z@ \@plus10\p@
   \belowdisplayshortskip 36\p@ \@plus18\p@ \@minus9\p@
%</60pt>
%    \end{macrocode}
%    The \cs{belowdisplayskip} is always equal to the
%    \cs{abovedisplayskip}. The parameters of the first level list are
%    always given by \cs{@listI}.
%    \begin{macrocode}
   \belowdisplayskip \abovedisplayskip
   \let\@listi\@listI}
%    \end{macrocode}
%
%    We initially choose the normalsize font.
%    \begin{macrocode}
\normalsize
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\small}
%    This code is similar to that for \cs{normalsize}.
% (Robert Schlicht\footnote{\texttt{w.m.l@gmx.net}, via email on 2004/03/11.}
% noted that in some cases \% signs were missing after \verb?\@setfontsize?).
%
% For the larger sizes I have set \cs{topsep} to 2/3\cs{onelineskip}
% and \cs{parsep} to 1/2\cs{topsep}.
% \changes{v1.61}{2004/03/12}{Added missing percent signs to some uses of
%                             \cs{@setfontsize}}
%    \begin{macrocode}
\newcommand{\small}{%
%<*9pt>
    \@setfontsize\small\@viiipt{9.5}%
    \abovedisplayskip 6\p@ \@plus 2\p@ \@minus 4\p@
    \abovedisplayshortskip \z@ \@plus 2\p@
    \belowdisplayshortskip 4\p@ \@plus 2\p@ \@minus 2\p@
    \def\@listi{\leftmargin\leftmargini
                \topsep 2\p@ \@plus 2\p@ \@minus 2\p@
                \parsep 1\p@ \@plus\p@ \@minus\p@
                \itemsep \parsep
%%                \itemindent\z@
                }%
%</9pt>
%<*10pt>
   \@setfontsize\small\@ixpt{11}%
   \abovedisplayskip 8.5\p@ \@plus3\p@ \@minus4\p@
   \abovedisplayshortskip \z@ \@plus2\p@
   \belowdisplayshortskip 4\p@ \@plus2\p@ \@minus2\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 4\p@ \@plus2\p@ \@minus2\p@
               \parsep 2\p@ \@plus\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</10pt>
%<*11pt>
   \@setfontsize\small\@xpt\@xiipt
   \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6\p@ \@plus3\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 6\p@ \@plus2\p@ \@minus2\p@
               \parsep 3\p@ \@plus2\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</11pt>
%<*12pt>
   \@setfontsize\small\@xipt{13.6}%
   \abovedisplayskip 11\p@ \@plus3\p@ \@minus6\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6.5\p@ \@plus3.5\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 9\p@ \@plus3\p@ \@minus5\p@
               \parsep 4.5\p@ \@plus2\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</12pt>
%<*14pt>
   \@setfontsize\small\@xiipt{14.5}%
   \abovedisplayskip 12\p@ \@plus3\p@ \@minus7\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6.5\p@ \@plus3.5\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 11\p@ \@plus4\p@ \@minus6\p@
               \parsep 6\p@ \@plus3\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</14pt>
%<*17pt>
   \@setfontsize\small\@xivpt{17}%
   \abovedisplayskip 12\p@ \@plus3\p@ \@minus7\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 7\p@ \@plus4\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 11\p@ \@plus4\p@ \@minus6\p@
               \parsep 6\p@ \@plus3\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</17pt>
%<*20pt>
   \@setfontsize\small\@xviipt{22}%
   \abovedisplayskip 17\p@ \@plus4\p@ \@minus8\p@
   \abovedisplayshortskip \z@ \@plus4\p@
   \belowdisplayshortskip 11\p@ \@plus4\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 14\p@ \@plus5\p@ \@minus7\p@
               \parsep 7\p@ \@plus2\p@ \@minus3\p@
               \itemsep \parsep}%
%</20pt>
%<*25pt>
   \@setfontsize\small\@xxpt{25}%
   \abovedisplayskip 20\p@ \@plus5\p@ \@minus9\p@
   \abovedisplayshortskip \z@ \@plus5\p@
   \belowdisplayshortskip 12.5\p@ \@plus6\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 16\p@ \@plus5\p@ \@minus8\p@
               \parsep 8\p@ \@plus3\p@ \@minus4\p@
               \itemsep \parsep}%
%</25pt>
%<*30pt>
   \@setfontsize\small\@xxvpt{30}%
   \abovedisplayskip 25\p@ \@plus6\p@ \@minus10\p@
   \abovedisplayshortskip \z@ \@plus6\p@
   \belowdisplayshortskip 15\p@ \@plus7.5\p@ \@minus4\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 20\p@ \@plus7\p@ \@minus10\p@
               \parsep 10\p@ \@plus4\p@ \@minus5\p@
               \itemsep \parsep}%
%</30pt>
%<*36pt>
   \@setfontsize\small\@xxxpt{37}%
   \abovedisplayskip 30\p@ \@plus7\p@ \@minus11\p@
   \abovedisplayshortskip \z@ \@plus7\p@
   \belowdisplayshortskip 18\p@ \@plus9\p@ \@minus4\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 24\p@ \@plus8\p@ \@minus12\p@
               \parsep 12\p@ \@plus4\p@ \@minus6\p@
               \itemsep \parsep}%
%</36pt>
%<*48pt>
   \@setfontsize\small\@xxxvipt{45}%
   \abovedisplayskip 36\p@ \@plus8\p@ \@minus12\p@
   \abovedisplayshortskip \z@ \@plus8\p@
   \belowdisplayshortskip 22\p@ \@plus11\p@ \@minus5\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 30\p@ \@plus10\p@ \@minus15\p@
               \parsep 15\p@ \@plus5\p@ \@minus7\p@
               \itemsep \parsep}%
%</48pt>
%<*60pt>
   \@setfontsize\small\@xlviiipt{60}%
   \abovedisplayskip 48\p@ \@plus9\p@ \@minus13\p@
   \abovedisplayshortskip \z@ \@plus9\p@
   \belowdisplayshortskip 30\p@ \@plus15\p@ \@minus7\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 40\p@ \@plus13\p@ \@minus20\p@
               \parsep 20\p@ \@plus6\p@ \@minus10\p@
               \itemsep \parsep}%
%</60pt>
   \belowdisplayskip \abovedisplayskip
}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\footnotesize}
%    This code is similar to that for \cs{small}.
%    \begin{macrocode}
\newcommand{\footnotesize}{%
%<*9pt>
    \@setfontsize\footnotesize\@viipt{8}%
    \abovedisplayskip 6\p@ \@plus 2\p@ \@minus 4\p@
    \abovedisplayshortskip \z@ \@plus 2\p@
    \belowdisplayshortskip 4\p@ \@plus 2\p@ \@minus 2\p@
    \def\@listi{\leftmargin\leftmargini
                \topsep 2\p@ \@plus 2\p@ \@minus 2\p@
                \parsep 1\p@ \@plus\p@ \@minus\p@
                \itemsep \parsep
%%                \itemindent\z@
               }%
%</9pt>
%<*10pt>
   \@setfontsize\footnotesize\@viiipt{9.5}%
   \abovedisplayskip 6\p@ \@plus2\p@ \@minus4\p@
   \abovedisplayshortskip \z@ \@plus\p@
   \belowdisplayshortskip 3\p@ \@plus\p@ \@minus2\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 3\p@ \@plus\p@ \@minus\p@
               \parsep 2\p@ \@plus\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</10pt>
%<*11pt>
   \@setfontsize\footnotesize\@ixpt{11}%
   \abovedisplayskip 8\p@ \@plus2\p@ \@minus4\p@
   \abovedisplayshortskip \z@ \@plus\p@
   \belowdisplayshortskip 4\p@ \@plus2\p@ \@minus2\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 4\p@ \@plus2\p@ \@minus2\p@
               \parsep 2\p@ \@plus\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</11pt>
%<*12pt>
   \@setfontsize\footnotesize\@xpt\@xiipt
   \abovedisplayskip 10\p@ \@plus2\p@ \@minus5\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6\p@ \@plus3\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 6\p@ \@plus2\p@ \@minus2\p@
               \parsep 3\p@ \@plus2\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</12pt>
%<*14pt>
   \@setfontsize\footnotesize\@xipt{13.6}%
   \abovedisplayskip 11\p@ \@plus3\p@ \@minus6\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6.5\p@ \@plus3.5\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 6.5\p@ \@plus3.5\p@ \@minus3\p@
               \parsep 4\p@ \@plus3\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</14pt>
%<*17pt>
   \@setfontsize\footnotesize\@xiipt{14}%
   \abovedisplayskip 12\p@ \@plus3\p@ \@minus7\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 6.5\p@ \@plus3.5\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 6.5\p@ \@plus3.5\p@ \@minus3\p@
               \parsep 4\p@ \@plus3\p@ \@minus\p@
               \itemsep \parsep
%%               \itemindent\z@
              }%
%</17pt>
%<*20pt>
   \@setfontsize\footnotesize\@xivpt{17.5}%
   \abovedisplayskip 14\p@ \@plus3\p@ \@minus8\p@
   \abovedisplayshortskip \z@ \@plus3\p@
   \belowdisplayshortskip 7\p@ \@plus3.5\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 12\p@ \@plus4\p@ \@minus6\p@
               \parsep 6\p@ \@plus2\p@ \@minus3\p@
               \itemsep \parsep}%
%</20pt>
%<*25pt>
   \@setfontsize\footnotesize\@xviipt{22}%
   \abovedisplayskip 17\p@ \@plus4\p@ \@minus8\p@
   \abovedisplayshortskip \z@ \@plus4\p@
   \belowdisplayshortskip 11\p@ \@plus4\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 14\p@ \@plus5\p@ \@minus7\p@
               \parsep 7\p@ \@plus2\p@ \@minus3\p@
               \itemsep \parsep}%
%</25pt>
%<*30pt>
   \@setfontsize\footnotesize\@xxpt{25}%
   \abovedisplayskip 20\p@ \@plus5\p@ \@minus9\p@
   \abovedisplayshortskip \z@ \@plus5\p@
   \belowdisplayshortskip 12.5\p@ \@plus6\p@ \@minus3\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 16\p@ \@plus5\p@ \@minus8\p@
               \parsep 8\p@ \@plus3\p@ \@minus4\p@
               \itemsep \parsep}%
%</30pt>
%<*36pt>
   \@setfontsize\footnotesize\@xxvpt{30}%
   \abovedisplayskip 25\p@ \@plus6\p@ \@minus10\p@
   \abovedisplayshortskip \z@ \@plus6\p@
   \belowdisplayshortskip 15\p@ \@plus7.5\p@ \@minus4\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 20\p@ \@plus7\p@ \@minus10\p@
               \parsep 10\p@ \@plus4\p@ \@minus5\p@
               \itemsep \parsep}%
%</36pt>
%<*48pt>
   \@setfontsize\footnotesize\@xxxpt{37}%
   \abovedisplayskip 30\p@ \@plus7\p@ \@minus11\p@
   \abovedisplayshortskip \z@ \@plus7\p@
   \belowdisplayshortskip 18\p@ \@plus9\p@ \@minus4\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 24\p@ \@plus8\p@ \@minus12\p@
               \parsep 12\p@ \@plus4\p@ \@minus6\p@
               \itemsep \parsep}%
%</48pt>
%<*60pt>
   \@setfontsize\footnotesize\@xxxvipt{45}%
   \abovedisplayskip 36\p@ \@plus8\p@ \@minus12\p@
   \abovedisplayshortskip \z@ \@plus8\p@
   \belowdisplayshortskip 22\p@ \@plus11\p@ \@minus5\p@
   \def\@listi{\leftmargin\leftmargini
               \topsep 30\p@ \@plus10\p@ \@minus15\p@
               \parsep 15\p@ \@plus5\p@ \@minus7\p@
               \itemsep \parsep}%
%</60pt>
   \belowdisplayskip \abovedisplayskip
}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\miniscule}
% \begin{macro}{\scriptsize}
% \begin{macro}{\tiny}
% \begin{macro}{\large}
% \begin{macro}{\Large}
% \begin{macro}{\LARGE}
% \begin{macro}{\huge}
% \begin{macro}{\Huge}
% \begin{macro}{\HUGE}
%    These are all much simpler than the previous macros, they just
%    select a new fontsize, but leave the parameters for displays and
%    lists alone. The class provides two additional sizes, \cs{miniscule}
% and \cs{HUGE}, with respect to the usual set. For the larger sizes (e.g.,
% 72pt and above) I have
% made the \cs{baselineskip} approximately 20 precent larger than the pt size.
% \changes{v1.2}{2002/07/27}{Added \cs{miniscule} and \cs{HUGE} font sizes}
% \changes{v1.2}{2002/07/27}{Twiddled some font sizes to get regular steps}
% \changes{v1.2a}{2002/08/27}{Fixed 12pt scriptsize bug}
%    \begin{macrocode}
%<*9pt>
\ifextrafontsizes
  \newcommand*{\miniscule}{\@setfontsize\miniscule\@ivpt{5}}
\else
  \newcommand*{\miniscule}{\@setfontsize\miniscule\@vpt{6}}
\fi
\newcommand*{\tiny}{\@setfontsize\tiny\@vpt{6}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@vipt{7}}
\newcommand*{\large}{\@setfontsize\large\@xpt{12}}
\newcommand*{\Large}{\@setfontsize\Large\@xipt{13.6}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xiipt{14.5}}
\newcommand*{\huge}{\@setfontsize\huge\@xivpt{18}}
\newcommand*{\Huge}{\@setfontsize\Huge\@xviipt{22}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@xxpt{25}}
%</9pt>
%<*10pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@vpt{6}}
\newcommand*{\tiny}{\@setfontsize\tiny\@vipt{7}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@viipt{8}}
\newcommand*{\large}{\@setfontsize\large\@xipt{13.6}}
\newcommand*{\Large}{\@setfontsize\Large\@xiipt{14.5}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xivpt{18}}
\newcommand*{\huge}{\@setfontsize\huge\@xviipt{22}}
\newcommand*{\Huge}{\@setfontsize\Huge\@xxpt{25}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@xxvpt{30}}
%</10pt>
%<*11pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@vipt{7}}
\newcommand*{\tiny}{\@setfontsize\tiny\@viipt{8}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@viiipt{9.5}}
\newcommand*{\large}{\@setfontsize\large\@xiipt{14.5}}
\newcommand*{\Large}{\@setfontsize\Large\@xivpt{18}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xviipt{22}}
\newcommand*{\huge}{\@setfontsize\huge\@xxpt{25}}
\newcommand*{\Huge}{\@setfontsize\Huge\@xxvpt{30}}
\ifextrafontsizes
  \newcommand*{\HUGE}{\@setfontsize\HUGE\@xxxpt{37}}
\else
  \let\HUGE=\Huge
\fi
%</11pt>
%<*12pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@viipt{8}}
\newcommand*{\tiny}{\@setfontsize\tiny\@viiipt{9.5}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@ixpt\@xpt}
\newcommand*{\large}{\@setfontsize\large\@xivpt{18}}
\newcommand*{\Large}{\@setfontsize\Large\@xviipt{22}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xxpt{25}}
\newcommand*{\huge}{\@setfontsize\huge\@xxvpt{30}}
\ifextrafontsizes
  \newcommand*{\Huge}{\@setfontsize\Huge\@xxxpt{37}}
  \newcommand*{\HUGE}{\@setfontsize\HUGE\@xxxvipt{45}}
\else
  \let\Huge=\huge
  \let\HUGE=\huge
\fi
%</12pt>
%<*14pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@viiipt{9.5}}
\newcommand*{\tiny}{\@setfontsize\tiny\@ixpt{10}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xpt{12}}
\newcommand*{\large}{\@setfontsize\large\@xviipt{22}}
\newcommand*{\Large}{\@setfontsize\Large\@xxpt{25}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xxvpt{30}}
\ifextrafontsizes
  \newcommand*{\huge}{\@setfontsize\Huge\@xxxpt{37}}
  \newcommand*{\Huge}{\@setfontsize\Huge\@xxxvipt{45}}
  \newcommand*{\HUGE}{\@setfontsize\HUGE\@xlviiipt{60}}
\else
  \let\huge=\LARGE
  \let\Huge=\LARGE
  \let\HUGE=\LARGE
\fi
%</14pt>
%<*17pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@ixpt{10}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xpt{12}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xipt{13.6}}
\newcommand*{\large}{\@setfontsize\large\@xxpt{25}}
\newcommand*{\Large}{\@setfontsize\Large\@xxvpt{30}}
\ifextrafontsizes
  \newcommand*{\LARGE}{\@setfontsize\LARGE\@xxxpt{37}}
  \newcommand*{\huge}{\@setfontsize\huge\@xxxvipt{45}}
  \newcommand*{\Huge}{\@setfontsize\Huge\@xlviiipt{60}}
  \newcommand*{\HUGE}{\@setfontsize\HUGE\@lxpt{72}}
\else
  \let\LARGE=\Large
  \let\huge=\Large
  \let\Huge=\Large
  \let\HUGE=\Large
\fi
%</17pt>
%<*20pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@xpt{12}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xipt{13.6}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xiipt{14.5}}
\newcommand*{\large}{\@setfontsize\large\@xxvpt{30}}
\newcommand*{\Large}{\@setfontsize\Large\@xxxpt{37}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xxxvipt{45}}
\newcommand*{\huge}{\@setfontsize\huge\@xlviiipt{60}}
\newcommand*{\Huge}{\@setfontsize\Huge\@lxpt{72}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@lxxiipt{86}}
%</20pt>
%<*25pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@xipt{13.6}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xiipt{14.5}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xivpt{17.5}}
\newcommand*{\large}{\@setfontsize\large\@xxxpt{37}}
\newcommand*{\Large}{\@setfontsize\Large\@xxxvipt{45}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xlviiipt{60}}
\newcommand*{\huge}{\@setfontsize\huge\@lxpt{72}}
\newcommand*{\Huge}{\@setfontsize\Huge\@lxxiipt{86}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@lxxxivpt{100}}
%</25pt>
%<*30pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@xiipt{14.5}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xivpt{17.5}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xviipt{22}}
\newcommand*{\large}{\@setfontsize\large\@xxxvipt{45}}
\newcommand*{\Large}{\@setfontsize\Large\@xlviiipt{60}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@lxpt{72}}
\newcommand*{\huge}{\@setfontsize\huge\@lxxiipt{86}}
\newcommand*{\Huge}{\@setfontsize\Huge\@lxxxivpt{100}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@xcvipt{116}}
%</30pt>
%<*36pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@xivpt{17.5}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xviipt{22}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xxpt{25}}
\newcommand*{\large}{\@setfontsize\large\@xlviiipt{60}}
\newcommand*{\Large}{\@setfontsize\Large\@lxpt{72}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@lxxiipt{86}}
\newcommand*{\huge}{\@setfontsize\huge\@lxxxivpt{100}}
\newcommand*{\Huge}{\@setfontsize\Huge\@xcvipt{116}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@cviiipt{132}}
%</36pt>
%<*48pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@xviipt{22}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xxpt{25}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xxvpt{30}}
\newcommand*{\large}{\@setfontsize\large\@lxpt{72}}
\newcommand*{\Large}{\@setfontsize\Large\@lxxiipt{86}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@lxxxivpt{100}}
\newcommand*{\huge}{\@setfontsize\huge\@xcvipt{116}}
\newcommand*{\Huge}{\@setfontsize\Huge\@cviiipt{132}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@cxxpt{144}}
%</48pt>
%<*60pt>
\newcommand*{\miniscule}{\@setfontsize\miniscule\@xxpt{25}}
\newcommand*{\tiny}{\@setfontsize\tiny\@xxvpt{30}}
\newcommand*{\scriptsize}{\@setfontsize\scriptsize\@xxxpt{37}}
\newcommand*{\large}{\@setfontsize\large\@lxxiipt{86}}
\newcommand*{\Large}{\@setfontsize\Large\@lxxxivpt{100}}
\newcommand*{\LARGE}{\@setfontsize\LARGE\@xcvipt{116}}
\newcommand*{\huge}{\@setfontsize\huge\@cviiipt{132}}
\newcommand*{\Huge}{\@setfontsize\Huge\@cxxpt{144}}
\newcommand*{\HUGE}{\@setfontsize\HUGE\@cxxxiipt{162}}
%</60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
%
%    \begin{macrocode}
%</9pt|10pt|11pt|12pt|14pt|17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%<*class>
%    \end{macrocode}
%
% \begin{macro}{\captionsize}
%  This internal command holds the font size for captions. 
%    \begin{macrocode}
\newcommand{\captionsize}{\normalsize}
%    \end{macrocode}
% \end{macro}
%
% \subsection{Paragraphing}
%
% \begin{macro}{\lineskip}
% \begin{macro}{\normallineskip}
%    These parameters control \TeX's behaviour when two lines tend to
%    come too close together.
%    \begin{macrocode}
\setlength\lineskip{1\p@}
\setlength\normallineskip{1\p@}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\baselinestretch}
%    This is used as a multiplier for \cs{baselineskip}. The default is
%    to \emph{not} stretch the baselines.
%    \begin{macrocode}
\renewcommand{\baselinestretch}{}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\parskip}
% \begin{macro}{\onelineskip}
%
% \cs{parskip} is additional vertical space between paragraphs;  default
% is zero.
%
%
%    \cs{onelineskip} is the default space between baselines.
% \changes{v0.11 (mem14.clo)}{2001/10/30}{Changed \cs{onelineskip} from 17.28pt to 17.5pt}
%    \begin{macrocode}
\setlength\parskip{0\p@ \@plus \p@}
%</class>
%<*9pt|10pt|11pt|12pt|14pt|17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%<9pt>\setlength{\onelineskip}{\@xpt\p@}
%<10pt>\setlength{\onelineskip}{\@xiipt\p@}
%<11pt>\setlength{\onelineskip}{13.6\p@}
%<12pt>\setlength{\onelineskip}{14.5\p@}
%<14pt>\setlength{\onelineskip}{17.5\p@}
%<17pt>\setlength{\onelineskip}{22\p@}
%<20pt>\setlength{\onelineskip}{25\p@}
%<25pt>\setlength{\onelineskip}{30\p@}
%<30pt>\setlength{\onelineskip}{37\p@}
%<36pt>\setlength{\onelineskip}{45\p@}
%<48pt>\setlength{\onelineskip}{60\p@}
%<60pt>\setlength{\onelineskip}{72\p@}
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\parindent}
%    \cs{parskip} gives extra vertical space between paragraphs and
%    \cs{parindent} is the width of the paragraph indentation. 
%    \begin{macrocode}
\if@twocolumn
  \setlength\parindent{1em}
\else
%<9pt>  \setlength\parindent{12\p@}
%<10pt>  \setlength\parindent{15\p@}
%<11pt>  \setlength\parindent{17\p@}
%<12pt>  \setlength\parindent{1.5em}
%<14pt>  \setlength\parindent{1.5em}
%<17pt>  \setlength\parindent{1.5em}
%<20pt>  \setlength\parindent{1.5em}
%<25pt>  \setlength\parindent{1.5em}
%<30pt>  \setlength\parindent{1.5em}
%<36pt>  \setlength\parindent{1.5em}
%<48pt>  \setlength\parindent{1.5em}
%<60pt>  \setlength\parindent{1.5em}
\fi
%</9pt|10pt|11pt|12pt|14pt|17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\smallskipamount}
% \begin{macro}{\medskipamount}
% \begin{macro}{\bigskipamount}
% The values for these three parameters are set in the LaTeX kernel.
% Historically they have been size invariant, but I have changed them for
% the larger sizes (\cs{smallskipamount} is 1/4 the fontsize, and the others
% each double up on the next lower).
% \changes{v1.61803}{2008/01/30}{(small/med/big)skips not invraiant for larger font sizes.}
% \changes{v1.61803}{2008/01/30}{Changed (small/med/big)skips for 17pt}
%    \begin{macrocode}
%<*9pt|10pt|11pt|12pt|14pt>
\setlength\smallskipamount{3\p@ \@plus 1\p@ \@minus 1\p@}
\setlength\medskipamount{6\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\bigskipamount{12\p@ \@plus 4\p@ \@minus 4\p@}
%</9pt|10pt|11pt|12pt|14pt>
%<*17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%<*17pt>
\setlength\smallskipamount{4\p@ \@plus1\p@ \@minus1\p@}
\setlength\medskipamount{8\p@ \@plus2\p@ \@minus2\p@}
\setlength\bigskipamount{17\p@ \@plus4\p@ \@minus4\p@}
%</17pt>
%<*20pt>
\setlength\smallskipamount{5\p@ \@plus1\p@ \@minus1\p@}
\setlength\medskipamount{10\p@ \@plus2\p@ \@minus2\p@}
\setlength\bigskipamount{20\p@ \@plus4\p@ \@minus4\p@}
%</20pt>
%<*25pt>
\setlength\smallskipamount{6\p@ \@plus1\p@ \@minus1\p@}
\setlength\medskipamount{12\p@ \@plus2\p@ \@minus2\p@}
\setlength\bigskipamount{24\p@ \@plus4\p@ \@minus4\p@}
%</25pt>
%<*30pt>
\setlength\smallskipamount{5\p@ \@plus1\p@ \@minus1\p@}
\setlength\medskipamount{10\p@ \@plus2\p@ \@minus2\p@}
\setlength\bigskipamount{20\p@ \@plus4\p@ \@minus4\p@}
%</30pt>
%<*36pt>
\setlength\smallskipamount{9\p@ \@plus2\p@ \@minus2\p@}
\setlength\medskipamount{18\p@ \@plus4\p@ \@minus4\p@}
\setlength\bigskipamount{36\p@ \@plus8\p@ \@minus8\p@}
%</36pt>
%<*48pt>
\setlength\smallskipamount{12\p@ \@plus3\p@ \@minus3\p@}
\setlength\medskipamount{24\p@ \@plus6\p@ \@minus6\p@}
\setlength\bigskipamount{48\p@ \@plus12\p@ \@minus12\p@}
%</48pt>
%<*60pt>
\setlength\smallskipamount{15\p@ \@plus4\p@ \@minus4\p@}
\setlength\medskipamount{30\p@ \@plus8\p@ \@minus8\p@}
\setlength\bigskipamount{60\p@ \@plus16\p@ \@minus16\p@}
%</60pt>
%</17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
%
% \begin{macro}{\@lowpenalty}
% \begin{macro}{\@medpenalty}
% \begin{macro}{\@highpenalty}%
%    The commands \cs{nopagebreak} and \cs{nolinebreak} put in penalties
%    to discourage these breaks at the point they are put in.
%    They use \cs{@lowpenalty}, \cs{@medpenalty} or \cs{@highpenalty},
%    dependent on their argument.
%    \begin{macrocode}
%<*class>
\@lowpenalty   51
\@medpenalty  151
\@highpenalty 301
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\clubpenalty}
% \begin{macro}{\widowpenalty}
%    These penalties are used to discourage club and widow lines.
%    The default values are 150 each, but we want stronger discouragement.
%    \begin{macrocode}
\clubpenalty  1000
\widowpenalty 1000
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\displaywidowpenalty}
% \begin{macro}{\predisplaypenalty}
% \begin{macro}{\postdisplaypenalty}
%    Discourage, but do not prevent, widows in front of a math display
%    and forbid breaking directly in front of a display. Allow break
%    after a display without a penalty. The default values are
%    used, therefore we only show them here.
%    \begin{macrocode}
% \displaywidowpenalty 50
% \predisplaypenalty   10000
% \postdisplaypenalty  0
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\interlinepenalty}
%    Allow the breaking of a page in the middle of a paragraph.
%    \begin{macrocode}
% \interlinepenalty 0
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\brokenpenalty}
%    We allow the breaking of a page after a hyphenated line.
%    \begin{macrocode}
% \brokenpenalty 100
%    \end{macrocode}
% \end{macro}
%
% 
%
%
% \subsection{Vertical spacing}
%
% \begin{macro}{\headheight}
% \begin{macro}{\headsep}
% \begin{macro}{\topskip}
% \begin{macro}{\footskip}
%    The \cs{headheight} is the height of the box that will contain the
%    running head. In this class it is point size dependent --- 
% \cs{onelineskip} (normally it is a constant 12pt). 
%
% The \cs{headsep} is the distance between the bottom
%    of the running head and the top of the text. For the larger sizes
% this is 1.8 times the fontsize.
%
% The \cs{topskip} is the \cs{baselineskip} for the first line on a page; 
%    \LaTeX's output routine will not work properly if it has the
%    value 0pt, so do not do that! For the lareger sizes this is the font size.
%
%    The distance from the baseline of the box which contains the
%    running footer to the baseline of last line of text is controlled
%    by the \cs{footskip}. For the larger sizes this is 2.5 times the
% font size.
% \changes{v0.11 (mem14.clo)}{2001/10/30}{Changed \cs{headheight} from 16pt to 17.5pt}
% \changes{v0.11 (mem11.clo)}{2002/03/10}{Changed \cs{headheight} from 13pt to 13.6pt}
%    \begin{macrocode}
%</class>
%<*9pt|10pt|11pt|12pt|14pt|17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%<*9pt>
\setlength\headheight{11\p@}
\setlength\headsep{.225in}
\setlength\topskip{9\p@}
\setlength\footskip{.33in}
%</9pt>
%<*10pt>
\setlength\headheight{12\p@}
\setlength\headsep{.25in}
\setlength\topskip{10\p@}
\setlength\footskip{.35in}
%</10pt>
%<*11pt>
\setlength\headheight{13.6\p@}
\setlength\headsep{.275in}
\setlength\topskip{11\p@}
\setlength\footskip{.38in}
%</11pt>
%<*12pt>
\setlength\headheight{14\p@}
\setlength\headsep{.275in}
\setlength\topskip{12\p@}
\setlength\footskip{30\p@}
%</12pt>
%<*14pt>
\setlength\headheight{17.5\p@}
\setlength\headsep{.30in}
\setlength\topskip{14.4\p@}
\setlength\footskip{.4in}
%</14pt>
%<*17pt>
\setlength\headheight{22\p@}
\setlength\headsep{.30in}
\setlength\topskip{14.4\p@}
\setlength\footskip{.4in}
%</17pt>
%<*20pt>
\setlength\headheight{25\p@}
\setlength\headsep{36\p@}
\setlength\topskip{20\p@}
\setlength\footskip{50\p@}
%</20pt>
%<*25pt>
\setlength\headheight{30\p@}
\setlength\headsep{45\p@}
\setlength\topskip{25\p@}
\setlength\footskip{62\p@}
%</25pt>
%<*30pt>
\setlength\headheight{37\p@}
\setlength\headsep{54\p@}
\setlength\topskip{30\p@}
\setlength\footskip{75\p@}
%</30pt>
%<*36pt>
\setlength\headheight{45\p@}
\setlength\headsep{65\p@}
\setlength\topskip{36\p@}
\setlength\footskip{90\p@}
%</36pt>
%<*48pt>
\setlength\headheight{60\p@}
\setlength\headsep{86\p@}
\setlength\topskip{48\p@}
\setlength\footskip{120\p@}
%</48pt>
%<*60pt>
\setlength\headheight{72\p@}
\setlength\headsep{108\p@}
\setlength\topskip{60\p@}
\setlength\footskip{150\p@}
%</60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\maxdepth}
% \begin{macro}{\@maxdepth}
%    The \TeX\ primitive register \cs{maxdepth} has a function that is
%    similar to that of \cs{topskip}. The register \cs{@maxdepth} should
%    always contain a copy of \cs{maxdepth}. In both plain \TeX\ and
%    \LaTeX~2.09 \cs{maxdepth} had a fixed value of \texttt{4pt}; in
%    native \LaTeX 2e mode we let the value depend on the typesize. We
%    set it so that \cs{maxdepth} $+$ \cs{topskip} $=$ typesize $\times
%    1.5$. As it happens, in these classes \cs{topskip} is equal to the
%    typesize, therefor we set \cs{maxdepth} to half the value of
%    \cs{topskip}.
%    \begin{macrocode}
\setlength\maxdepth{.5\topskip}
\setlength\@maxdepth\maxdepth
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%
%
% \subsection{Footnotes}
%
% \begin{macro}{\footnotesep}
%    \cs{footnotesep} is the height of the strut placed at the beginning
%    of every footnote. It equals the height of a normal \cs{footnotesize}
% strut, so no extra space appears between footnotes.
% \changes{v1.61803}{2007/01/30}{Changed nearly all \cs{footnotesep}}
%    \begin{macrocode}
%<9pt>\setlength\footnotesep{5.6\p@}
%<10pt>\setlength\footnotesep{6.65\p@}
%<11pt>\setlength\footnotesep{7.7\p@}
%<12pt>\setlength\footnotesep{8.4\p@}
%<14pt>\setlength\footnotesep{9.5\p@} 
%<17pt>\setlength\footnotesep{10.15\p@}
%<20pt>\setlength\footnotesep{12.6\p@}
%<25pt>\setlength\footnotesep{15.4\p@}
%<30pt>\setlength\footnotesep{17.5\p@}
%<36pt>\setlength\footnotesep{21\p@}
%<48pt>\setlength\footnotesep{25.9\p@}
%<60pt>\setlength\footnotesep{31.5\p@}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\footins}
%    \verb?\skip\footins? is the space between the last line of the main
%    text and the top of the first footnote.
%    \begin{macrocode}
%<9pt>\setlength{\skip\footins}{8\p@ \@plus 2\p@ \@minus 2\p@}
%<10pt>\setlength{\skip\footins}{9\p@ \@plus 4\p@ \@minus 2\p@}
%<11pt>\setlength{\skip\footins}{10\p@ \@plus 4\p@ \@minus 2\p@}
%<12pt>\setlength{\skip\footins}{10.8\p@ \@plus 4\p@ \@minus 2\p@}
%<14pt>\setlength{\skip\footins}{13\p@ \@plus 4\p@ \@minus 2\p@}
%<17pt>\setlength{\skip\footins}{16\p@ \@plus 5\p@ \@minus 3\p@}
%<20pt>\setlength{\skip\footins}{19\p@ \@plus 7\p@ \@minus 3\p@}
%<25pt>\setlength{\skip\footins}{24\p@ \@plus 8\p@ \@minus 4\p@}
%<30pt>\setlength{\skip\footins}{29\p@ \@plus 10\p@ \@minus 5\p@}
%<36pt>\setlength{\skip\footins}{35\p@ \@plus 12\p@ \@minus 6\p@}
%<48pt>\setlength{\skip\footins}{47\p@ \@plus 16\p@ \@minus 8\p@}
%<60pt>\setlength{\skip\footins}{59\p@ \@plus 20\p@ \@minus 10\p@}
%    \end{macrocode}
% \end{macro}
%
% \subsection{Floats}
%
% \paragraph{Floats on a text page}
%
% \begin{macro}{\floatsep}
% \begin{macro}{\textfloatsep}
% \begin{macro}{\intextsep}
%    When a floating object is placed on a page with text, these
%    parameters control the separation between the float and the other
%    objects on the page. These parameters are used for both
%    one-column mode and single-column floats in two-column mode.
%
%    \cs{floatsep} is the space between adjacent floats that are moved
%    to the top or bottom of the text page. For the larger sizes this is 
% \cs{bigskip}.
%
%    \cs{textfloatsep} is the space between the main text and floats
%    at the top or bottom of the page. For the larger sizes this is
% 1.45\cs{onelineskip}.
%
%    \cs{intextsep} is the space between in-text floats and the text.
%    \begin{macrocode}
%<*9pt>
\setlength\floatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\textfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\intextsep   {12\p@ \@plus 2\p@ \@minus 2\p@}
%</9pt>
%<*10pt>
\setlength\floatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\textfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\intextsep   {12\p@ \@plus 2\p@ \@minus 2\p@}
%</10pt>
%<*11pt>
\setlength\floatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\textfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\intextsep   {12\p@ \@plus 2\p@ \@minus 2\p@}
%</11pt>
%<*12pt>
\setlength\floatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\textfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\intextsep   {14\p@ \@plus 4\p@ \@minus 4\p@}
%</12pt>
%<*14pt>
\setlength\floatsep    {14\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\textfloatsep{20\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\intextsep   {14\p@ \@plus 4\p@ \@minus 4\p@}
%</14pt>
%<*17pt>
\setlength\floatsep    {15\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\textfloatsep{25\p@ \@plus 4\p@ \@minus 5\p@}
\intextsep \floatsep
%</17pt>
%<*20pt>
\setlength\floatsep    {20\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\textfloatsep{36\p@ \@plus 4\p@ \@minus 8\p@}
\intextsep \floatsep
%</20pt>
%<*25pt>
\setlength\floatsep    {24\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\textfloatsep{43\p@ \@plus 4\p@ \@minus 8\p@}
\intextsep \floatsep
%</25pt>
%<*30pt>
\setlength\floatsep    {30\p@ \@plus 6\p@ \@minus 6\p@}
\setlength\textfloatsep{54\p@ \@plus 6\p@ \@minus 12\p@}
\intextsep \floatsep
%</30pt>
%<*36pt>
\setlength\floatsep    {36\p@ \@plus 8\p@ \@minus 8\p@}
\setlength\textfloatsep{65\p@ \@plus 8\p@ \@minus 16\p@}
\intextsep \floatsep
%</36pt>
%<*48pt>
\setlength\floatsep    {48\p@ \@plus 12\p@ \@minus 12\p@}
\setlength\textfloatsep{87\p@ \@plus 12\p@ \@minus 24\p@}
\intextsep \floatsep
%</48pt>
%<*60pt>
\setlength\floatsep    {60\p@ \@plus 16\p@ \@minus 16\p@}
\setlength\textfloatsep{104\p@ \@plus 16\p@ \@minus 32\p@}
\intextsep \floatsep
%</60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\dblfloatsep}
% \begin{macro}{\dbltextfloatsep}
%    When floating objects that span the whole \cs{textwidth} are placed
%    on a text page and \LaTeX{} is in twocolumn mode the separation
%    between the float and the text is controlled by \cs{dblfloatsep}
%    and \cs{dbltextfloatsep}.
%
%    \cs{dblfloatsep} is the space between adjacent floats that are moved
%    to the top or bottom of the text page.
%
%    \cs{dbltextfloatsep} is the space between the main text and floats
%    at the top or bottom of the page.
%
%    \begin{macrocode}
%<*9pt>
\setlength\dblfloatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
%</9pt>
%<*10pt>
\setlength\dblfloatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
%</10pt>
%<*11pt>
\setlength\dblfloatsep    {12\p@ \@plus 2\p@ \@minus 2\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
%</11pt>
%<*12pt>
\setlength\dblfloatsep    {14\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
%</12pt>
%<*14pt>
\setlength\dblfloatsep    {14\p@ \@plus 2\p@ \@minus 4\p@}
\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
%</14pt>
%<*17pt>
\setlength\dblfloatsep    {15\p@ \@plus 4\p@ \@minus 4\p@}
\setlength\dbltextfloatsep{25\p@ \@plus 5\p@ \@minus 5\p@}
%</17pt>
%<*20pt>
\dblfloatsep \floatsep
\dbltextfloatsep \textfloatsep
%</20pt>
%<*25pt>
\dblfloatsep \floatsep
\dbltextfloatsep \textfloatsep
%</25pt>
%<*30pt>
\dblfloatsep \floatsep
\dbltextfloatsep \textfloatsep
%</30pt>
%<*36pt>
\dblfloatsep \floatsep
\dbltextfloatsep \textfloatsep
%</36pt>
%<*48pt>
\dblfloatsep \floatsep
\dbltextfloatsep \textfloatsep
%</48pt>
%<*60pt>
\dblfloatsep \floatsep
\dbltextfloatsep \textfloatsep
%</60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \paragraph{Floats on their own page or column}
%
% \begin{macro}{\@fptop}
% \begin{macro}{\@fpsep}
% \begin{macro}{\@fpbot}
%    When floating objects are placed on separate pages the layout of
%    such pages is controlled by these parameters. At the top of the
%    page \cs{@fptop} amount of stretchable whitespace is inserted, at
%    the bottom of the page we get an \cs{@fpbot} amount of stretchable
%    whitespace. Between adjacent floats the \cs{@fpsep} is inserted.
% For the larger sizes \cs{@fpsep} is .7\cs{onelineskip}.
%
%    These parameters are used for the placement of floating objects
%    in one column mode, or in single column floats in two column
%    mode.
%
%    Note that at least one of the two parameters \cs{@fptop} and
%    \cs{@fpbot} should contain a \verb?plus ...fil? to allow filling the
%    remaining empty space.
%    \begin{macrocode}
%<*9pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{9\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
%</9pt>
%<*10pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{8\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
%</10pt>
%<*11pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{8\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
%</11pt>
%<*12pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{10\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
%</12pt>
%<*14pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{10\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
%</14pt>
%<*17pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{12\p@ \@plus 2fil}
\setlength\@fpbot{0\p@ \@plus 1fil}
%</17pt>
%<*20pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{17\p@ \@plus 2fil}
\@fpbot \@fptop
%</20pt>
%<*25pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{21\p@ \@plus 2fil}
\@fpbot \@fptop
%</25pt>
%<*30pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{26\p@ \@plus 2fil}
\@fpbot \@fptop
%</30pt>
%<*36pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{31\p@ \@plus 2fil}
\@fpbot \@fptop
%</36pt>
%<*48pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{42\p@ \@plus 2fil}
\@fpbot \@fptop
%</48pt>
%<*60pt>
\setlength\@fptop{0\p@ \@plus 1fil}
\setlength\@fpsep{50\p@ \@plus 2fil}
\@fpbot \@fptop
%</60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\@dblfptop}
% \begin{macro}{\@dblfpsep}
% \begin{macro}{\@dblfpbot}
%    Double column floats in two column mode are handled with similar
%    parameters.
%    \begin{macrocode}
%<*9pt>
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{7\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
%</9pt>
%<*10pt>
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{8\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
%</10pt>
%<*11pt>
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{8\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
%</11pt>
%<*12pt>
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{10\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
%</12pt>
%<*14pt>
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{12\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
%</14pt>
%<*17pt>
\setlength\@dblfptop{0\p@ \@plus 1fil}
\setlength\@dblfpsep{12\p@ \@plus 2fil}
\setlength\@dblfpbot{0\p@ \@plus 1fil}
%</17pt>
%<*20pt>
\@dblfptop \@fptop
\@dblfpsep \@fpsep
\@dblfpbot \@dblfptop
%</20pt>
%<*25pt>
\@dblfptop \@fptop
\@dblfpsep \@fpsep
\@dblfpbot \@dblfptop
%</25pt>
%<*30pt>
\@dblfptop \@fptop
\@dblfpsep \@fpsep
\@dblfpbot \@dblfptop
%</30pt>
%<*36pt>
\@dblfptop \@fptop
\@dblfpsep \@fpsep
\@dblfpbot \@dblfptop
%</36pt>
%<*48pt>
\@dblfptop \@fptop
\@dblfpsep \@fpsep
\@dblfpbot \@dblfptop
%</48pt>
%<*60pt>
\@dblfptop \@fptop
\@dblfpsep \@fpsep
\@dblfpbot \@dblfptop
%</60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
% \end{macro}
%
% \subsection{The measure}
%
% The width of a line of text (and therefore the text block) is termed
% the \emph{measure}.
%
% \begin{macro}{\lxvchars}
% The length \cs{lxvchars} is the approximate length of a normal
% text line containing 65 characters (a typesetters rule of thumb is
% that there should be about 60--70 characters per line).
%    \begin{macrocode}
%<9pt>\setlength\lxvchars{276\p@}  %
%<10pt>\setlength\lxvchars{300\p@} % standard 345pt
%<11pt>\setlength\lxvchars{324\p@} % standard 360pt
%<12pt>\setlength\lxvchars{336\p@} % standard 390pt
%<14pt>\setlength\lxvchars{408\p@} %
%<17pt>\setlength\lxvchars{444\p@} %
%<20pt>\setlength\lxvchars{528\p@} %
%<25pt>\setlength\lxvchars{626\p@} %
%<30pt>\setlength\lxvchars{748\p@} %
%<36pt>\setlength\lxvchars{891\p@} %
%<48pt>\setlength\lxvchars{1177\p@} %
%<60pt>\setlength\lxvchars{1463\p@} %
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\xlvchars}
% The length \cs{xlvchars} is the approximate length of a normal
% double column text line containing 45 characters 
% (a typesetters rule of thumb is
% that there should be about 40--50 characters per column line).
%    \begin{macrocode}
%<9pt>\setlength\xlvchars{192\p@}  %
%<10pt>\setlength\xlvchars{204\p@} % 
%<11pt>\setlength\xlvchars{216\p@} % 
%<12pt>\setlength\xlvchars{240\p@} % 
%<14pt>\setlength\xlvchars{288\p@} %
%<17pt>\setlength\xlvchars{312\p@} %
%<20pt>\setlength\xlvchars{365\p@} %
%<25pt>\setlength\xlvchars{438\p@} %
%<30pt>\setlength\xlvchars{518\p@} %
%<36pt>\setlength\xlvchars{617\p@} %
%<48pt>\setlength\xlvchars{815\p@} %
%<60pt>\setlength\xlvchars{1014\p@} %
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\marginparsep}
% \begin{macro}{\marginparpush}
% \cs{marginparsep} is the horizontal space between the text block and 
% marginal notes, while \cs{marginparpush} is the minimum vertical
% separation between the notes.
%    \begin{macrocode}
\if@twocolumn
%<*9pt|10pt|11pt|12pt|14pt>
  \setlength\marginparsep{10\p@}
%</9pt|10pt|11pt|12pt|14pt>
%<*17pt|20pt|25pt|30pt|36pt|48pt|60pt>
  \setlength\marginparsep{1em}
%</17pt|20pt|25pt|30pt|36pt|48pt|60pt>
\else
%<*9pt|10pt|11pt|12pt|14pt>
  \setlength\marginparsep{7\p@}
%</9pt|10pt|11pt|12pt|14pt>
%<*17pt|20pt|25pt|30pt|36pt|48pt|60pt>
  \setlength\marginparsep{0.7em}
%</17pt|20pt|25pt|30pt|36pt|48pt|60pt>
\fi
%<9pt|10pt|11pt>\setlength{\marginparpush}{5\p@}
%<12pt|14pt>\setlength{\marginparpush}{7\p@}
%<*17pt|20pt|25pt|30pt|36pt|48pt|60pt>
  \setlength\marginparpush{0.5em}
%</17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%    \end{macrocode}
% \end{macro}
% \end{macro}
%
%    \begin{macrocode}
%</9pt|10pt|11pt|12pt|14pt|17pt|20pt|25pt|30pt|36pt|48pt|60pt>
%<*class>
%    \end{macrocode}
%
% \section{Page Layout}
%
%
% \subsection{The typeblock and margins}
%
%    All margin dimensions are measured from a point one inch from the
%    top and lefthand side of the page.
%
% \begin{macro}{\setlxvchars}
% \begin{macro}{\setxlvchars}
% These were suggested and supplied by Morten H{\o}gholm (18 May 2003).
%
% \cs{setlxvchars}\oarg{fontspec} sets \cs{lxvchars} to the length of a line
% containing 65 characters in the \meta{fontspec}. 
%
% Similarly
% \cs{setxlvchars}\oarg{fontspec} sets \cs{xlvchars} for 45 characters.
% \changes{v1.4}{2003/11/22}{Added \cs{setlxvchars} and \cs{setxlvchars}
%                              (from patch v1.6)}
%    \begin{macrocode}
\newcommand*{\setlxvchars}[1][\normalfont]{\begingroup
  #1
  \settowidth{\lxvchars}{abcdefghijklmnopqrstuvwxyz}%
  \setlength{\lxvchars}{2.042\lxvchars}%
  \addtolength{\lxvchars}{33.41pt}%
  \global\lxvchars=\lxvchars
  \endgroup}
\newcommand*{\setxlvchars}[1][\normalfont]{\begingroup
  #1
  \settowidth{\xlvchars}{abcdefghijklmnopqrstuvwxyz}%
  \setlength{\xlvchars}{1.415\xlvchars}%
  \addtolength{\xlvchars}{23.03pt}%
  \global\xlvchars=\xlvchars
  \endgroup}

%    \end{macrocode}
% \end{macro}
% \end{macro}
%
% \begin{macro}{\setrectanglesize}
%  The macro \cs{setrectanglesize}\marg{H}\marg{W}\marg{r}
% calculates the height and width of a rectangle given any two out of
% the three arguments. An unvalued argument is denoted by \verb?*?.
%
% Table~\ref{tab:setrect} shows the argument combinations and the result
% for each combination.
% \begin{table}
% \centering
% \caption{Arguments and results for \cs{setrectanglesize}}\label{tab:setrect}
% \begin{tabular}{ccc|l} \hline
%  H & W & r & Result  \\ \hline
%  * & W & r & $H = rW$  \\{}
%  * & W & * & $H = W$   \\{}
%  * & * & r & ambiguous   \\{}
%  * & * & * & ambiguous   \\{}
%  H & W & r & $H, W$  \\
%  H & W & * & $H, W$   \\
%  H & * & r & $W = rH$  \\
%  H & * & * & $W = H$   \\
%  \hline
% \end{tabular}
% \end{table}
%
% The
% calculated height and width are stored in \cs{@tempdima} and \cs{@tempdimb}
% respectively. Both lengths are set to zero if there is an error.
% \changes{v1.61803}{2008/01/30}{Used \cs{setlength} instead of TeX syntax so that the calc package 
%          can be used with page layout (Morten H{\o}gholm mempatch v4.5)}
%    \begin{macrocode}
\newcommand*{\setrectanglesize}[3]{%
  \nametest{#1}{*}%
  \ifsamename                           % H = *
    \nametest{#2}{*}%
    \ifsamename                         % W = *
      \@memerror{%
        The combination of argument values is ambiguous.\MessageBreak
        The lengths will be set to zero}{\@ehd}%
      \setlength{\@tempdima}{0pt}%
      \setlength{\@tempdimb}{0pt}%
    \else                               % W
      \nametest{#3}{*}%
      \ifsamename                       % r = *
        \setlength{\@tempdimb}{#2}%
        \setlength{\@tempdima}{\@tempdimb}%
      \else                             % r
        \setlength{\@tempdimb}{#2}%
        \setlength{\@tempdima}{#3\@tempdimb}%
      \fi
    \fi
  \else                                 % H
    \nametest{#2}{*}%
    \ifsamename                         % W = *
      \nametest{#3}{*}%
      \ifsamename                       % r = *
        \setlength{\@tempdima}{#1}%
        \setlength{\@tempdimb}{\@tempdima}%
      \else                             % r
        \setlength{\@tempdima}{#1}%
        \setlength{\@tempdimb}{#3\@tempdima}%
      \fi
    \else                               % W
      \setlength{\@tempdima}{#1}%
      \setlength{\@tempdimb}{#2}%
    \fi
  \fi}

%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\setfillsize}
% Consider a set of 4 lengths, $T$, $L$, $C$, and $R$, such that
% $T = L + C + R$, where $T$ is a fixed size and normally $C$ is also fixed.
% Also $L$ and $R$ may be specified independently of each other or as a
% ratio (i.e., $L = rR$ or $R = rL$).
%  The macro 
% \cs{setfillsize}\marg{T}\marg{C}\marg{L}\marg{R}\marg{r}
% maintains these constraints among the variables, where an unvalued 
% argument is denoted by \verb?*?.
%
% Table~\ref{tab:setfill} shows the argument combinations and the result
% for each combination.
% \begin{table}
% \centering
% \caption{Arguments and results for \cs{setfillsize}}\label{tab:setfill}
% \begin{tabular}{cccc|ll} \hline
%  C & L & R & r & Result                     &   \\ \hline
%  * & * & R & r & $L = rR$,                  & $C = T - L - R$ \\{}
%  * & * & R & * & $L = R$,                   & $C = T - L - R$ \\{}
%  * & * & * & r & ambigous                   & \\{}
%  * & * & * & * & ambiguous                  & \\{}
%  * & L & R & r & $L$, $R$,                  & $C = T - L - R$ \\{}
%  * & L & R & * & $L$, $R$,                  & $C = T - L - R$ \\{}
%  * & L & * & r & $R = rL$,                  & $C = T - L - R$ \\{}
%  * & L & * & * & $R = L$,                   & $C = T - L - R$ \\{}
%  C & * & R & r & $L = T - C - R$            & $C$ \\
%  C & * & R & * & $L = T - C - R$,           & $C$ \\
%  C & * & * & r & $L + R = T - C$, $R = rL$, & $C$ \\
%  C & * & * & * & $L + R = T - C$, $R = L$,  & $C$ \\
%  C & L & R & r & ambiguous                  & $C$ \\
%  C & L & R & * & ambiguous                  & $C$ \\ 
%  C & L & * & r & $R = T - C - L$,           & $C$ \\
%  C & L & * & * & $R = T - C - L$,           & $C$ \\
%  \hline
% \end{tabular}
% ^^A \MakeShortVerb{\|}
% \end{table}
%
%
% The
% calculated values of \texttt{C}, \texttt{L} and \texttt{R} are stored 
% \cs{@tempdimc}, 
% \cs{@tempdima} and \cs{@tempdimb} respectively. If there is an error
% the lengths are set to zero.
%    \begin{macrocode}
\newcommand*{\setfillsize}[5]{%
  \nametest{#2}{*}%
  \ifsamename                                % C = *
    \nametest{#3}{*}%
    \ifsamename                              % L = *
      \nametest{#4}{*}%
      \ifsamename                            % R = *
        \@memerror{%
          The combination of argument values is ambiguous.\MessageBreak
          The lengths will be set to zero}{\@ehd}
        \setlength{\@tempdima}{0pt}%
        \setlength{\@tempdimb}{0pt}%
        \setlength{\@tempdimc}{0pt}%
      \else                                  % R 
        \nametest{#5}{*}%
        \ifsamename                          % r = *
          \setlength{\@tempdimb}{#4}%
          \setlength{\@tempdima}{\@tempdimb}%
          \setlength{\@tempdimc}{#1}%
          \advance\@tempdimc -\@tempdima
          \advance\@tempdimc -\@tempdimb
        \else                                % r 
          \setlength{\@tempdimb}{#4}%
          \setlength{\@tempdima}{#5\@tempdimb}%
          \setlength{\@tempdimc}{#1}%
          \advance\@tempdimc -\@tempdima
          \advance\@tempdimc -\@tempdimb
        \fi
      \fi
    \else                                    % L 
      \nametest{#4}{*}%
      \ifsamename                            % R = *