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+% \iffalse meta-comment
+%
+% isoe.dtx
+%
+% This work has been partially funded by the US government
+% and is not subject to copyright.
+%
+% This program is provided under the terms of the
+% LaTeX Project Public License distributed from CTAN
+% archives in directory macros/latex/base/lppl.txt.
+%
+% Author: Peter Wilson (CUA and NIST)
+% now at: peter.r.wilson@boeing.com
+%
+% \fi
+% \CheckSum{3756}
+%
+% \changes{v11}{1997/09/30}{Output character table to class and package files only}
+% \changes{v2}{1997/12/01}{Moved xtab and uschyp package code to seperate files}
+% \changes{v2}{1997/12/04}{Moved isorot package code to seperate file}
+% \changes{v2.1}{1999/02/15}{General updates}
+% \changes{v2.1}{1999/02/15}{Character table not output at all}
+% \changes{v2.1}{1999/03/19}{Some changes to boilerplate}
+% \changes{v2.2}{2000/01/10}{Modified to support tex4ht}
+% \changes{v2.3}{2001/07/06}{Modified to match ISO 2001 requirements}
+% \changes{v2.3}{2002/01/10}{More changes to match ISO 2001 requirements}
+% \changes{v2.4}{2002/07/22}{Added support for pdf/hyperref bookmarking}
+%
+% ^^A \def\fileversion{v2.2}
+% ^^A \def\filedate{2000/01/10}
+% \def\fileversion{v2.3}
+% ^^A \def\filedate{2001/07/06}
+% \def\filedate{2002/01/10}
+% \def\fileversion{v2.4}
+% \def\filedate{2002/07/22}
+% \title{\LaTeX{} for ISO Standards: \\
+% Source code\thanks{This
+% file has version number \fileversion, last revised
+% \filedate.}}
+%
+% \author{%
+% Peter Wilson\\
+% Catholic University of America\thanks{This work was originally
+% performed as
+% a Guest Researcher at the National Institute of Standards and Technology.} \\
+% Now at \texttt{peter.r.wilson@boeing.com}
+% }
+% \date{\filedate}
+% \maketitle
+% \tableofcontents
+%
+% \StopEventually{}
+%
+%
+%
+% \section{Introduction}
+%
+% This document provides the commented source for \LaTeX{}
+% class and package files designed for the typesetting of
+% documents according to the rules for ISO international standards.
+% A seperate document provides the user manual~\cite{PRW96i}.
+% This manual is typeset according to the conventions of the
+% \LaTeX{} \textsc{docstrip} utility which enables the automatic
+% extraction of the \LaTeX{} macro source files~\cite{GOOSSENS94}.
+%
+% The original version of this class was used for the production
+% of camera ready copy
+% for the ISO~10303 standard \emph{Product data representation and
+% exchange}. The initial release of ISO~10303:1994 consisted of twelve
+% parts and over 2400 pages. The editorial board of the ISO Central
+% Secretariat in Geneva accepted the typographic conventions embodied
+% in those macros.
+%
+% ISO (the International Organization for Standardisation) specify
+% their document layout requirements in ISO Directives~\cite{ISOD397}.
+% Unfortunately these Directives do not completely define the document
+% layout, leaving several aspects open to interpretation by the
+% document editor and re-interpretation by the ISO editorial board.
+% At the request of the editors of ISO~10303, and no doubt others as
+% well, ISO has clarified the intent of their Directives~\cite{ISOD201}.
+% Also, since
+% they were published ISO has been considering how best to accept
+% and use electronic manuscripts instead of camer ready paper copy.
+% At the time of writing (July 2001) they will accept documents in
+% PDF format. This has also lead to some changes in requirements.
+%
+% The following specifications are a re-implementation of the
+% class macros published in July 2000.
+%
+% This manual is provided as a service for future developers
+% and maintainers of the
+% class and packages for ISO standards. It is assumed that any
+% any such person is \LaTeX{} literate and accustomed to supporting
+% complex class and package files~\cite{GOOSSENS94}.
+%
+%
+% 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}. These are principally revisions of the
+% report class to meet ISO typographic requirements and many new macros
+% to support specific structural elements of an ISO standard to provide
+% logical markup capabilities. Section~\ref{sec:askinc} describes the
+% macros for the \texttt{askinc} package for interactive file inclusion.
+%
+%
+% \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{ltxdoc}
+% \end{macrocode}
+%
+% We do not want the following basic elements to appear in the index.
+% \begin{macrocode}
+\DoNotIndex{\',\.,\@M,\@@input,\@addtoreset,\@arabic,\@badmath}
+\DoNotIndex{\@centercr,\@cite}
+\DoNotIndex{\@dotsep,\@empty,\@float,\@gobble,\@gobbletwo,\@ignoretrue}
+\DoNotIndex{\@input,\@ixpt,\@m}
+\DoNotIndex{\@minus,\@mkboth,\@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,\end@dblfloat,\end@float,\endgroup}
+\DoNotIndex{\endlist,\everycr,\everypar,\ExecuteOptions,\expandafter}
+\DoNotIndex{\fbox}
+\DoNotIndex{\filedate,\filename,\fileversion,\fontsize,\framebox,\gdef}
+\DoNotIndex{\global,\halign,\hangindent,\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,\leftmark}
+\DoNotIndex{\list,\llap,\long,\m@ne,\m@th,\mark,\markboth,\markright}
+\DoNotIndex{\month,\newcommand,\newcounter,\newenvironment}
+\DoNotIndex{\NeedsTeXFormat,\newdimen}
+\DoNotIndex{\newlength,\newpage,\nobreak,\noindent,\null,\number}
+\DoNotIndex{\numberline,\OldMakeindex,\OnlyDescription,\p@}
+\DoNotIndex{\pagestyle,\par,\paragraph,\paragraphmark,\parfillskip}
+\DoNotIndex{\penalty,\PrintChanges,\PrintIndex,\ProcessOptions}
+\DoNotIndex{\protect,\ProvidesClass,\raggedbottom,\raggedright}
+\DoNotIndex{\refstepcounter,\relax,\renewcommand,\reset@font}
+\DoNotIndex{\rightmargin,\rightmark,\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@}
+% \end{macrocode}
+% We do want an index, using linenumbers, but not update information.
+% \begin{macrocode}
+\EnableCrossrefs
+\CodelineIndex
+%% \RecordChanges
+% \end{macrocode}
+% We 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
+% \end{macrocode}
+% We want the full details printed.
+% \begin{macrocode}
+\begin{document}
+\DocInput{isoe.dtx}
+\PrintIndex
+%% \PrintChanges
+\end{document}
+%</driver>
+% \end{macrocode}
+%
+%
+%
+%
+%
+% \section{Identification} \label{sec:id}
+%
+% \changes{v2}{1997/11/30}{Eliminated all native v2.09 support}
+%
+% The \file{iso} document class can only be used with \LaTeX 2e, so we make
+% sure that an appropriate message is displayed when another \TeX\
+% format is used.
+% \begin{macrocode}
+%<iso>\NeedsTeXFormat{LaTeX2e}
+% \end{macrocode}
+%
+% Announce the name, option files and version for \LaTeX 2e files:
+% \begin{macrocode}
+%<iso>\ProvidesClass{isov2}[2002/07/22 v2.4 LaTeX ISO document class]
+%<9pt>\ProvidesFile{iso9.clo}[1997/11/30 v1.1 ISO class size option]
+%<10pt>\ProvidesFile{iso10.clo}[1997/11/30 v1.1 ISO class size option]
+%<11pt>\ProvidesFile{iso11.clo}[1997/11/30 v1.1 ISO class size option]
+%<inc>\ProvidesPackage{askincv1}[1995/05/31 Interactive include package]
+%<fwd1>\ProvidesFile{isofwdbp.tex}[2002/01/10 ISO Foreword boilerplate]
+%<trfwd1>\ProvidesFile{trfwd1.tex}[2002/01/10 PAS/TS Foreword boilerplate]
+% \end{macrocode}
+%
+%
+% \section{Initial Code} \label{sec:ic}
+%
+% \begin{macrocode}
+%<*iso>
+% \end{macrocode}
+%
+% \changes{v2.1}{1999/02/15}{Requires the url package}
+% The class requires the \file{url} package, so make sure
+% that it is loaded.
+% \begin{macrocode}
+\RequirePackage{url}
+% \end{macrocode}
+%
+% In this part we define a few commands that are used later on.
+%
+% \begin{macro}{\@ptsize}
+% This control sequence is 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.
+% \begin{macrocode}
+\newcommand{\@ptsize}{}
+% \end{macrocode}
+% \end{macro}
+%
+% \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}{\isostringsequal}
+% \begin{macro}{\isoemptystring}
+% The command |\isostringsequal| is based on code in Stephan von
+% Bechtolsheim \emph{\TeX{} in Practice}, vol III page 334.
+% It enables the definition of specific commands for testing whether
+% two strings are equal.
+% \begin{macrocode}
+\def\isostringsequal #1#2{%
+ TT\fi
+ \edef\@is@str@ngsequali{#1}%
+ \edef\@is@str@ngsequalii{#2}%
+ \ifx\@is@str@ngsequali\@is@str@ngsequalii}
+% \end{macrocode}
+% Now we define the |\isoemptystring| command for use in testing
+% for an empty parameter.
+% \begin{macrocode}
+\def\isoemptystring #1{%
+ TT\fi
+ \if\isostringsequal{#1}{}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\fillline}
+% This command draws a horizontal line across the page.
+% \begin{macrocode}
+\newcommand{\fillline}{\mbox{}\hrulefill\mbox{}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\makecommand}
+% \begin{macro}{\make@command}
+% \changes{v2.2}{2000/01/10}{Added makecommand}
+% The |\makecommand| macro is like the |\newcommand| macro except that it
+% always (re)defines a command. It is equivalent to the pair of commands: \\
+% |\providecommand{\com}...\renewcommand{\com}...|. \\
+% The code for |\make@command}| is a simplified version of the code
+% for |\renew@command| in file \file{ltdefns.dtx}.
+% \begin{macrocode}
+\newcommand{\makecommand}{\@star@or@long\make@command}
+\newcommand{\make@command}[1]{%
+ \let\@ifdefinable\@rc@ifdefinable
+ \new@command#1}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\ifpdf}
+% \changes{v2.2}{2000/01/10}{Added ifpdf to support pdfLaTeX}
+% This can be used to check whether or not a document is being processed
+% by LaTeX or pdfLaTeX.
+% \begin{macrocode}
+\newif\ifpdf
+\ifx\pdfoutput\undefined
+ \pdffalse
+\else
+ \pdftrue
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\ifisohyper}
+% This can be used to check, after |\begin{document}| to check if
+% the \Lpack{hyperref} package has been used.
+% \changes{v2.4}{2002/07/22}{Added \cs{ifisohyper} to support hyperref}
+% \begin{macrocode}
+\newif\ifisohyper
+ \isohyperfalse
+\AtBeginDocument{%
+ \@ifpackageloaded{hyperref}%
+ {\isohypertrue}%
+ {\newcommand{\hyperpage}[1]{#1}}%
+}
+
+% \end{macrocode}
+% \end{macro}
+%
+% \section{Declaration of Options} \label{sec:opt}
+%
+%
+% \subsection{Setting Paper Sizes}
+%
+% The variables |\paperwidth| and |\paperheight| should reflect the
+% physical paper size after trimming. For desk printer output this
+% is usually the real paper size since there is no post-processing.
+% We assume that the document will only be printed on either ISO
+% standard A4 paper (option \Lopt{a4paper}) or on the most common
+% of the US paper sizes (option \Lopt{letterpaper}).
+%
+% Option \Lopt{a4paper} will be the default.
+%
+% \begin{macro}{\if@us}
+% A flag for the paper size option.
+% \begin{macrocode}
+\newif\if@us\@usfalse
+% \end{macrocode}
+% \end{macro}
+% Declare the paper size options.
+% \begin{macrocode}
+\DeclareOption{a4paper}
+ {\setlength\paperheight {297mm}% %% 11.69in
+ \setlength\paperwidth {210mm}} %% 8.27in
+\DeclareOption{letterpaper}
+ {\setlength\paperheight {11in}% %% 279mm
+ \setlength\paperwidth {8.5in}% %% 216mm
+ \@ustrue}
+% \end{macrocode}
+%
+% \subsection{Choosing the type size}
+%
+% The type size options are handled by defining |\@ptsize| to contain
+% the last digit of the size in question and branching on |\ifcase|
+% statements. This is done for historical reasons to stay compatible
+% with other packages that use the |\@ptsize| variable to select
+% special actions. It makes the declarations of size options less
+% than 10pt difficult, although one can probably use \texttt{9}
+% assuming that a class will not define both
+% \Lopt{9pt} and \Lopt{19pt} options.
+%
+% Option \Lopt{11pt} will be the default.
+%
+% \begin{macrocode}
+\renewcommand{\@ptsize}{1}
+\DeclareOption{9pt}{\renewcommand{\@ptsize}{9}}
+\DeclareOption{10pt}{\renewcommand{\@ptsize}{0}}
+\DeclareOption{11pt}{\renewcommand{\@ptsize}{1}}
+% \end{macrocode}
+%
+%
+% \subsection{Two-side or one-side printing}
+%
+% For two-sided printing we use the switch |\if@twoside|. In
+% addition we have to set the |\if@mparswitch| to get any margin
+% paragraphs into the outside margin. In this class we always
+% use two-sided printing with marginal notes on the outside.
+% \begin{macro}{\if@twoside}
+% \begin{macro}{\if@mparswitch}
+% \begin{macrocode}
+\@twosidetrue \@mparswitchtrue
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \changes{v2}{1997/11/30}{Eliminated the sect option}
+%
+% \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{copyright} option}
+%
+% The default is not to print ISO copyright notices. This option
+% enables copyright notice printing. As usual, we employ a flag.
+% \changes{v11}{1997/09/30}{Added additional \cs{ifc@pyrightopt} flag}
+% \begin{macro}{\ifc@pyrightopt}
+% |c@pyrightopt| stores the user's option, while |c@pyright| will
+% be used to control printing of copyright notices and symbols
+% in the body of the document.
+% \begin{macrocode}
+\newif\ifc@pyright\c@pyrightfalse
+\newif\ifc@pyrightopt\c@pyrightoptfalse
+\DeclareOption{copyright}{\c@pyrightopttrue}
+\DeclareOption{notcopyright}{\c@pyrightoptfalse}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Document kind options \Lopt{is}, \Lopt{dis}, \Lopt{cd},
+% \Lopt{wd}, \Lopt{techrep}, \Lopt{otherdoc} etc.}
+%
+% The default is to assume that an ISO standard in preparation is
+% to be printed (effectively this is the \Lopt{otherdoc} option).
+% The \Lopt{is} option declares that an International Standard (IS)
+% is to be printed.
+% The \Lopt{fdis} option declares that a Final Draft International
+% Standard (FDIS) is to be printed, and similarly the
+% \Lopt{dis} option declares that a Draft International Standard
+% (DIS) is to be printed. The \Lopt{cd} option is for Committee
+% Draft (CD) documents and the option \Lopt{wd} is for Working
+% Drafts.
+%
+% The \Lopt{techrep} option declares that a Technical Report (probably
+% type 1 or 2) is to be printed.
+%
+% The \Lopt{otherdoc} option indicates that
+% the document is not intended to become an ISO standard (e.g., is
+% an ISO internal report).
+% \begin{macro}{\ifisstandard}
+% \begin{macro}{\iffdisstandard}
+% \begin{macro}{\ifdisstandard}
+% \begin{macro}{\ifcdstandard}
+% \begin{macro}{\ifwdstandard}
+% \begin{macro}{\iftechrep}
+% \begin{macro}{\ifotherdoc}
+% We use flags for remembering which option is in effect.
+% \changes{v1.1}{1997/09/30}{Added options: fdis, cd, and wd}
+% \begin{macrocode}
+\newif\ifisstandard\isstandardfalse
+\newif\iffdisstandard\fdisstandardfalse
+\newif\ifdisstandard\disstandardfalse
+\newif\ifcdstandard\cdstandardfalse
+\newif\ifwdstandard\wdstandardfalse
+\newif\iftechrep\techrepfalse
+\newif\ifotherdoc\otherdocfalse
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\iftechspec}
+% \begin{macro}{\ifpaspec}
+% Flags for the \Lopt{techspec} Technical Specification and \Lopt{pas}
+% Publicly Available Specification options.
+% \changes{v2.3}{2001/07/06}{Added ts and pas options}
+% \begin{macrocode}
+\newif\iftechspec\techspecfalse
+\newif\ifpaspec\paspecfalse
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% Now declare the options (including an \Lopt{is} option just for
+% completeness). We need to ensure (later) that, whatever copyright
+% option has been used, copyright notices are not printed for certain
+% kinds of documents.
+% \begin{macrocode}
+\DeclareOption{is}{\isstandardtrue
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardfalse
+ \techrepfalse
+ \techspecfalse
+ \paspecfalse
+ \otherdocfalse}
+\DeclareOption{fdis}{\isstandardfalse
+ \fdisstandardtrue
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardfalse
+ \techrepfalse
+ \techspecfalse
+ \paspecfalse
+ \otherdocfalse}
+\DeclareOption{dis}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardtrue
+ \cdstandardfalse
+ \wdstandardfalse
+ \techrepfalse
+ \techspecfalse
+ \paspecfalse
+ \otherdocfalse}
+\DeclareOption{cd}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardtrue
+ \wdstandardfalse
+ \techrepfalse
+ \techspecfalse
+ \paspecfalse
+ \otherdocfalse
+ \c@pyrightfalse}
+\DeclareOption{wd}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardtrue
+ \techrepfalse
+ \techspecfalse
+ \paspecfalse
+ \otherdocfalse
+ \c@pyrightfalse}
+\DeclareOption{techrep}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardfalse
+ \techreptrue
+ \techspecfalse
+ \paspecfalse
+ \otherdocfalse}
+\DeclareOption{techspec}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardfalse
+ \techrepfalse
+ \techspectrue
+ \paspecfalse
+ \otherdocfalse}
+\DeclareOption{pas}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardfalse
+ \techreptrue
+ \techspecfalse
+ \paspectrue
+ \otherdocfalse}
+\DeclareOption{otherdoc}{\isstandardfalse
+ \fdisstandardfalse
+ \disstandardfalse
+ \cdstandardfalse
+ \wdstandardfalse
+ \techrepfalse
+ \techspecfalse
+ \paspecfalse
+ \otherdoctrue
+ \c@pyrightfalse}
+% \end{macrocode}
+%
+% \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.
+% \begin{macro}{\ifdr@ftd@c}
+% \begin{macrocode}
+\newif\ifdr@ftd@c\dr@ftd@cfalse
+\setlength{\overfullrule}{\z@}
+\DeclareOption{final}{\setlength{\overfullrule}{\z@}
+ \dr@ftd@cfalse}
+\DeclareOption{draft}{\setlength\overfullrule{5pt}%
+ \dr@ftd@ctrue}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \section{Executing Options} \label{sec:xopt}
+%
+% Here we execute the default options to initialize certain
+% variables. Note that the document class \file{isoe} always uses two
+% sided printing.
+% \changes{v2.3}{2001/07/06}{Deleted the uglycaption option}
+% \begin{macrocode}
+\ExecuteOptions{notcopyright,otherdoc,final,a4paper,11pt,onecolumn}
+% \end{macrocode}
+%
+% The |\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
+% |\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
+% |\usepackage| command in the document preamble.
+% \begin{macrocode}
+\ProcessOptions
+% \end{macrocode}
+%
+% \begin{macro}{\ifc@pyright}
+% Ensure that we have the correct value of |\ifc@pyright| no matter
+% the ordering in which the options are processed.
+% \changes{v11}{1997/09/30}{Added setting of c@pyright after option processing}
+% \changes{v2.3}{2001/07/06}{Changed copyright option to apply to all docs}
+% \begin{macrocode}
+\c@pyrightfalse
+\ifc@pyrightopt
+ \c@pyrighttrue
+\fi
+% \end{macrocode}
+% \end{macro}
+%
+% Now that all the options have been executed we can load the
+% chosen class option file that contains all size dependent code.
+% \begin{macrocode}
+\ifnum\@ptsize < \tw@
+ \input{iso1\@ptsize.clo}
+\else
+ \input{iso\@ptsize.clo}
+\fi
+% \end{macrocode}
+%
+% \section{Loading Packages} \label{sec:lpack}
+%
+% This class file does not load additional package files.
+%
+%
+% \section{Document Layout} \label{sec:docl}
+% \label{sec:maincode}
+%
+% In this section we deal with the more difficult typographical
+% details.
+%
+% \subsection{Fonts}
+%
+% \LaTeX\ offers the user commands to change the size of the font,
+% relative to the `main' size. Each relative size changing command
+% |\size| executes the command
+% |\@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 |\baselineskip|
+% for the size of the font selected. (The actual value will be
+% |\baselinestretch| * \meta{baselineskip}.)
+% \end{description}
+%
+% A number of commands, defined in the \LaTeX\ kernel, shorten the
+% following definitions and are used throughout. They are:
+% \begin{center}
+% \begin{tabular}{ll@{\qquad}ll@{\qquad}ll}
+% \verb=\@vpt= & 5 & \verb=\@vipt= & 6 & \verb=\@viipt= & 7 \\
+% \verb=\@viiipt= & 8 & \verb=\@ixpt= & 9 & \verb=\@xpt= & 10 \\
+% \verb=\@xipt= & 10.95 & \verb=\@xiipt= & 12 & \verb=\@xivpt= & 14.4\\
+% \verb=\@xviipt= & 17.28 & \verb=\@xxpt= & 20.74 & \verb=\@xxvpt= & 24.88\\
+% \end{tabular}
+% \end{center}
+%
+% \begin{macro}{\normalsize}
+% \begin{macro}{\@normalsize}
+%
+% The user level command for the main size is |\normalsize|.
+% Internally \LaTeX\ uses |\@normalsize| when it refers to the
+% main size. |\@normalsize| will be defined to work like
+% |\normalsize| if the latter is redefined from its default
+% definition (that just issues an error message). Otherwise
+% |\@normalsize| simply selects a 9pt/11pt size.
+%
+% The |\normalsize| macro also sets new values for\\
+% |\abovedisplayskip|, |\abovedisplayshortskip| and
+% |\belowdisplayshortskip|.
+%
+% \begin{macrocode}
+%</iso>
+%<*9pt|10pt|11pt>
+\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>
+% \end{macrocode}
+% The |\belowdisplayskip| is always equal to the
+% |\abovedisplayskip|. The parameters of the first level list are
+% always given by |\@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}{\@smidgeon}
+% \begin{macro}{\parskip}
+% \begin{macro}{\@onelineskip}
+% ISO typesetting is grid based, which is not something that \LaTeX{}
+% is good at. We use some `fixed' skips for before and after headings,
+% plus a flexible smidgeon.
+%
+% For the grid, we want a fixed size |\parskip|, dependant only on
+% the normal font, of one blank line (i.e., the |\baselineskip|).
+%
+% Just in case the value of |\parskip| gets changed, also keep
+% a similar value in |@onelineskip|.
+% \changes{v2}{1997/11/30}{parskip fixed and moved to .clo files}
+% \changes{v2}{1997/11/30}{Added \cs{@smidgeon} command}
+% \changes{v2}{1997/11/30}{Added \cs{@onelineskip} command}
+% \begin{macrocode}
+\newlength{\@smidgeon}
+ \setlength{\@smidgeon}{0.5\p@ \@plus 1\p@ \@minus 1\p@}
+\newlength{\@onelineskip}
+%<9pt>\parskip \@xpt\p@
+%<9pt>\setlength{\@onelineskip}{\@xpt\p@}
+%<10pt>\parskip \@xiipt\p@
+%<10pt>\setlength{\@onelineskip}{\@xiipt\p@}
+%<11pt>\parskip 13.6\p@
+%<11pt>\setlength{\@onelineskip}{13.6\p@}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\small}
+% This code is similar to that for |\normalsize|.
+% \begin{macrocode}
+\newcommand{\small}{%
+%<*9pt>
+ \@setfontsize\small\@viiipt{9}
+ \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>
+ \belowdisplayskip \abovedisplayskip
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\footnotesize}
+% This code is similar to that for |\normalsize|.
+% \begin{macrocode}
+\newcommand{\footnotesize}{%
+%<*9pt>
+ \@setfontsize\footnotesize\@viiipt{9}
+ \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>
+ \belowdisplayskip \abovedisplayskip
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\scriptsize}
+% \begin{macro}{\tiny}
+% \begin{macro}{\large}
+% \begin{macro}{\Large}
+% \begin{macro}{\LARGE}
+% \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.
+% \begin{macrocode}
+%<*9pt>
+\newcommand{\tiny}{\@setfontsize\tiny\@vpt{6}}
+\newcommand{\scriptsize}{\@setfontsize\scriptsize\@viipt{8}}
+\newcommand{\large}{\@setfontsize\large\@xpt{11}}
+\newcommand{\Large}{\@setfontsize\Large\@xipt{12}}
+\newcommand{\LARGE}{\@setfontsize\LARGE\@xivpt{18}}
+\newcommand{\huge}{\@setfontsize\huge\@xviipt{22}}
+\newcommand{\Huge}{\@setfontsize\Huge\@xxpt{25}}
+%</9pt>
+%<*10pt>
+\newcommand{\tiny}{\@setfontsize\tiny\@vipt{7}}
+\newcommand{\scriptsize}{\@setfontsize\scriptsize\@viiipt{9}}
+\newcommand{\large}{\@setfontsize\large\@xipt{12}}
+\newcommand{\Large}{\@setfontsize\Large\@xiipt{14}}
+\newcommand{\LARGE}{\@setfontsize\LARGE\@xivpt{18}}
+\newcommand{\huge}{\@setfontsize\huge\@xviipt{22}}
+\newcommand{\Huge}{\@setfontsize\Huge\@xxvpt{30}}
+%</10pt>
+%<*11pt>
+\newcommand{\tiny}{\@setfontsize\tiny\@vipt{7}}
+\newcommand{\scriptsize}{\@setfontsize\scriptsize\@viiipt{9}}
+\newcommand{\large}{\@setfontsize\large\@xiipt{14}}
+\newcommand{\Large}{\@setfontsize\Large\@xivpt{18}}
+\newcommand{\LARGE}{\@setfontsize\LARGE\@xviipt{22}}
+\newcommand{\huge}{\@setfontsize\huge\@xxpt{25}}
+\newcommand{\Huge}{\@setfontsize\Huge\@xxvpt{30}}
+%</11pt>
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\Gfont}
+% \begin{macro}{\Tfont}
+% \begin{macro}{\Cfont}
+% \begin{macro}{\SCfont}
+% \begin{macro}{\SSCfont}
+% \begin{macro}{\Nfont}
+% \begin{macro}{\Efont}
+% Define the font sizes for headings, captions, etc.
+% |\Gfont| is the normal size font for general text.
+% |\Tfont| is for the title of the standard.
+% |\Cfont| is for clause headings. Similarly |\SCfont| and |\SSCfont|
+% are for subheadings.
+% |\Nfont| is for notes, examples, footers, footnotes, copyright.
+% |\Efont| is for code in typewriter font.
+% \changes{v2}{1997/11/30}{New \cs{SCfont} and \cs{SSCfont} commands}
+% \changes{v2.3}{2001/07/06}{Added font series to heading font sizes}
+% \begin{macrocode}
+\newcommand{\Gfont}{\normalsize}
+\newcommand{\Nfont}{\small}
+\newcommand{\Efont}{\small}
+%<*9pt>
+%%%\newcommand{\Tfont}{\huge}
+\newcommand{\Tfont}{\@setfontsize\Tfont\@xviipt{22}\bfseries}
+\newcommand{\Cfont}{\Large\bfseries}
+\newcommand{\SCfont}{\large\bfseries}
+\newcommand{\SSCfont}{\normalsize\bfseries}
+
+%</9pt>
+%<*10pt>
+%%%\newcommand{\Tfont}{\huge}
+\newcommand{\Tfont}{\@setfontsize\Tfont\@xviipt{22}\bfseries}
+\newcommand{\Cfont}{\Large\bfseries}
+\newcommand{\SCfont}{\large\bfseries}
+\newcommand{\SSCfont}{\normalsize\bfseries}
+
+%</10pt>
+%<*11pt>
+%%%\newcommand{\Tfont}{\LARGE}
+\newcommand{\Tfont}{\LARGE\bfseries}
+\newcommand{\Cfont}{\Large\bfseries}
+\newcommand{\SCfont}{\large\bfseries}
+\newcommand{\SSCfont}{\normalsize\bfseries}
+
+%</11pt>
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\beforecskip}
+% \begin{macro}{\aftercskip}
+% \begin{macro}{\beforescskip}
+% \begin{macro}{\afterscskip}
+% \begin{macro}{\beforesscskip}
+% \begin{macro}{\aftersscskip}
+% We define skips for before and after headings. ISO wants two blank
+% lines before a clause and one afterwards. For lower level sectioning
+% the spacing is one blank line before and one after.
+%
+% Remember that \LaTeX{} automatically adds |\parskip| before and
+% after headings.
+% \changes{v2}{1997/11/30}{New before and after clause skip commands}
+% \begin{macrocode}
+\newlength{\beforecskip}
+ \setlength{\beforecskip}{\@smidgeon}
+ \addtolength{\beforecskip}{2\@onelineskip}
+ \addtolength{\beforecskip}{-\parskip}
+\newlength{\aftercskip}
+ \setlength{\aftercskip}{\@smidgeon}
+ \addtolength{\aftercskip}{\@onelineskip}
+ \addtolength{\aftercskip}{-\parskip}
+\newlength{\beforescskip}
+ \setlength{\beforescskip}{\@smidgeon}
+ \addtolength{\beforescskip}{\@onelineskip}
+ \addtolength{\beforescskip}{-\parskip}
+\newlength{\afterscskip}
+ \setlength{\afterscskip}{\@smidgeon}
+ \addtolength{\afterscskip}{\@onelineskip}
+ \addtolength{\afterscskip}{-\parskip}
+\newlength{\beforesscskip}
+ \setlength{\beforesscskip}{\@smidgeon}
+ \addtolength{\beforesscskip}{\@onelineskip}
+ \addtolength{\beforesscskip}{-\parskip}
+\newlength{\aftersscskip}
+ \setlength{\aftersscskip}{\@smidgeon}
+ \addtolength{\aftersscskip}{\@onelineskip}
+ \addtolength{\aftersscskip}{-\parskip}
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macrocode}
+%</9pt|10pt|11pt>
+%<*iso>
+% \end{macrocode}
+%
+% \begin{macro}{\captionsize}
+% This internal command holds the font size for captions. Its value
+% depends on the \Lopt{uglycaption} option.
+% \changes{v1.1}{1997/07/31}{Added \cs{captionsize} command to support the uglycaption}
+% \changes{v2.3}{2001/07/06}{\cs{captionsize} is just \cs{normalsize}}
+% \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 |\baselineskip|. The default is
+% to \emph{not} stretch the baselines.
+% \begin{macrocode}
+\renewcommand{\baselinestretch}{}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\parindent}
+% |\parskip| gives extra vertical space between paragraphs and
+% |\parindent| is the width of the paragraph indentation.
+% (|\parskip| is defined in the \file{.clo} file.)
+% \begin{macrocode}
+\setlength\parindent{\z@}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\@lowpenalty}
+% \begin{macro}{\@medpenalty}
+% \begin{macro}{\@highpenalty}%
+% The commands |\nopagebreak| and |\nolinebreak| put in penalties
+% to discourage these breaks at the point they are put in.
+% They use |\@lowpenalty|, |\@medpenalty| or |\@highpenalty|,
+% dependent on their argument.
+% \begin{macrocode}
+\@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{Page Layout}
+%
+% All margin dimensions are measured from a point one inch from the
+% top and lefthand side of the page.
+%
+% The ISO layout on A4 paper (297 by 210 mm) is 25mm sidemargins
+% (make that 25.4mm for simplicity)
+% 12mm above and below the header and footer, at least one blank line
+% between the typeblock and headers/footers. This leads to
+% |\...sidemargin = 0|, and |\textwidth = 159.2mm = 160mm| for convenience,
+% and |\topmargin = -13.5mm|.
+%
+% Make |\headheight|,
+% |\headskip| and footheight each be 12pt, then |\footskip = 24pt|.
+% The total height of the typeblock is then 256mm; subtracting the
+% |\topskip| (say 12pt = 4mm) gives |\textheight = 252mm|.
+% \changes{v2.3}{2001/07/06}{Reconfigured the page layout}
+%
+% \subsubsection{Vertical spacing}
+%
+% \begin{macro}{\headheight}
+% \begin{macro}{\headsep}
+% \begin{macro}{\topskip}
+% The |\headheight| is the height of the box that will contain the
+% running head. The |\headsep| is the distance between the bottom
+% of the running head and the top of the text. The |\topskip| is the
+% |\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!
+% \begin{macrocode}
+\setlength\headheight{12\p@}
+\setlength\headsep{12\p@}
+%</iso>
+%<9pt>\setlength\topskip{12\p@}
+%<10pt>\setlength\topskip{12\p@}
+%<11pt>\setlength\topskip{12\p@}
+%<*iso>
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\footskip}
+% 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 |\footskip|.
+% \begin{macrocode}
+\setlength\footskip{24\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\maxdepth}
+% \begin{macro}{\@maxdepth}
+% The \TeX\ primitive register |\maxdepth| has a function that is
+% similar to that of |\topskip|. The register |\@maxdepth| should
+% always contain a copy of |\maxdepth|. In both plain \TeX\ and
+% \LaTeX~2.09 |\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 |\maxdepth| $+$ |\topskip| $=$ typesize $\times
+% 1.5$. As it happens, in these classes |\topskip| is equal to the
+% typesize, therefor we set |\maxdepth| to half the value of
+% |\topskip|.
+% \begin{macrocode}
+\setlength\maxdepth{.5\topskip}
+\setlength\@maxdepth\maxdepth
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \subsubsection{The dimension of text}
+%
+% \begin{macro}{\textwidth}
+% \begin{macro}{\textheight}
+% \begin{macro}{\columnsep}
+% The width and height of the text which are fixed in this class.
+% Also, the gutter width when in two column mode.
+%
+% \begin{macrocode}
+\setlength\textwidth{160mm}
+%%%\setlength\textheight{221.5mm}
+\setlength\textheight{252mm}
+\setlength\columnsep{10mm}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+%
+% \subsubsection{Margins}
+%
+% \begin{macro}{\topmargin}
+% \begin{macro}{\oddsidemargin}
+% \begin{macro}{\evensidemargin}
+% \begin{macro}{\marginparwidth}
+% \begin{macro}{\marginparsep}
+% \begin{macro}{\marginparpush}
+% The margins are fixed in this class.
+% \begin{macrocode}
+%%%\setlength\topmargin{0mm}
+\setlength\topmargin{-13.5mm}
+\setlength\oddsidemargin{0mm}
+\setlength\evensidemargin{0mm}
+\setlength\marginparwidth{0pt}
+\setlength\marginparsep{0pt}
+\setlength\marginparpush{3mm}
+% \end{macrocode}
+% However, some of the options can change these values. The \Lopt{draft}
+% option allows marginal notes.
+% \begin{macrocode}
+\ifdr@ftd@c
+ \setlength\marginparwidth{20mm}
+ \setlength\marginparsep{0.5mm}
+\fi
+% \end{macrocode}
+% The \Lopt{letterpaper} (279 by 216 mm) option rearranges the text block on the page,
+% trying to center it horizontally.
+% \begin{macrocode}
+\if@us
+%%% \setlength\topmargin{-9.4mm}
+%%% \setlength\oddsidemargin{1.55mm}
+%%% \setlength\evensidemargin{1.55mm}
+ \addtolength{\topmargin}{-9mm}
+ \setlength\oddsidemargin{2mm}
+ \setlength\evensidemargin{2mm}
+ \typeout{ }
+ \typeout{*********************************************************}
+ \typeout{* Warning: You have used the letterpage option. *********}
+ \typeout{* This will not be acceptable as ISO camera ready copy. *}
+ \typeout{*********************************************************}
+ \typeout{ }
+\fi
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+%
+% \subsubsection{Footnotes}
+%
+% \begin{macro}{\footnotesep}
+% |\footnotesep| is the height of the strut placed at the beginning
+% of every footnote.
+% \begin{macrocode}
+\setlength\footnotesep{12\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\footins}
+% |\skip\footins| is the space between the last line of the main
+% text and the top of the first footnote.
+% \begin{macrocode}
+\setlength{\skip\footins}{6\p@ \@plus 2\p@ \@minus 2\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Float placement parameters}
+%
+% All float parameters are given default values in the \LaTeX 2e
+% kernel. For this reason counters only need to be set with
+% |\setcounter| and other parameters are set using |\renewcommand|.
+%
+% \paragraph{Limits for the placement of floating objects}
+%
+% \begin{macro}{\c@topnumber}
+% The \Lcount{topnumber} counter holds the maximum number of
+% floats that can appear on the top of a text page (classically 2)
+% \begin{macrocode}
+\setcounter{topnumber}{2}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\topfraction}
+% This indicates the maximum part of a text page that can be
+% occupied by floats at the top (classically 0.7).
+% \begin{macrocode}
+\renewcommand{\topfraction}{.8}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\c@bottomnumber}
+% The \Lcount{bottomnumber} counter holds the maximum number of
+% floats that can appear on the bottom of a text page (classically 1).
+% \begin{macrocode}
+\setcounter{bottomnumber}{2}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\bottomfraction}
+% This indicates the maximum part of a text page that can be
+% occupied by floats at the bottom (classically 0.3).
+% \begin{macrocode}
+\renewcommand{\bottomfraction}{.5}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\c@totalnumber}
+% This indicates the maximum number of floats that can appear on
+% any text page (classically 3).
+% \begin{macrocode}
+\setcounter{totalnumber}{4}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\textfraction}
+% This indicates the minimum part of a text page that has to be
+% occupied by text (classically 0.2).
+% \begin{macrocode}
+\renewcommand{\textfraction}{.1}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\floatpagefraction}
+% This indicates the minimum part of a page that has to be
+% occupied by floating objects before a `float page' is
+% produced (classically 0.5).
+% \begin{macrocode}
+\renewcommand{\floatpagefraction}{.7}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\c@dbltopnumber}
+% The \Lcount{dbltopnumber} counter holds the maximum number of
+% two column floats that can appear on the top of a two column text
+% page (classically 2).
+% \begin{macrocode}
+\setcounter{dbltopnumber}{2}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\dbltopfraction}
+% This indicates the maximum part of a two column text page that
+% can be occupied by two column floats at the top (classically 0.7).
+% \begin{macrocode}
+\renewcommand{\dbltopfraction}{.8}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\dblfloatpagefraction}
+% This indicates the minimum part of a page that has to be
+% occupied by two column wide floating objects before a `float
+% page' is produced (classically 0.5).
+% \begin{macrocode}
+\renewcommand{\dblfloatpagefraction}{.7}
+% \end{macrocode}
+% \end{macro}
+%
+% \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.
+%
+% |\floatsep| is the space between adjacent floats that are moved
+% to the top or bottom of the text page.
+%
+% |\textfloatsep| is the space between the main text and floats
+% at the top or bottom of the page.
+%
+% |\intextsep| is the space between in-text floats and the text.
+% \begin{macrocode}
+\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@}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\dblfloatsep}
+% \begin{macro}{\dbltextfloatsep}
+% When floating objects that span the whole |\textwidth| are placed
+% on a text page and \LaTeX{} is in twocolumn mode the separation
+% between the float and the text is controlled by |\dblfloatsep|
+% and |\dbltextfloatsep|.
+%
+% |\dblfloatsep| is the space between adjacent floats that are moved
+% to the top or bottom of the text page.
+%
+% |\dbltextfloatsep| is the space between the main text and floats
+% at the top or bottom of the page.
+%
+% \begin{macrocode}
+\setlength\dblfloatsep {12\p@ \@plus 2\p@ \@minus 2\p@}
+\setlength\dbltextfloatsep{20\p@ \@plus 2\p@ \@minus 4\p@}
+% \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 |\@fptop| amount of stretchable whitespace is inserted, at
+% the bottom of the page we get an |\@fpbot| amount of stretchable
+% whitespace. Between adjacent floats the |\@fpsep| is inserted.
+%
+% 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 |\@fptop| and
+% |\@fpbot| should contain a |plus ...fil| to allow filling the
+% remaining empty space.
+% \begin{macrocode}
+\setlength\@fptop{0\p@ \@plus 1fil}
+\setlength\@fpsep{8\p@ \@plus 2fil}
+\setlength\@fpbot{0\p@ \@plus 1fil}
+% \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}
+\setlength\@dblfptop{0\p@ \@plus 1fil}
+\setlength\@dblfpsep{8\p@ \@plus 2fil}
+\setlength\@dblfpbot{0\p@ \@plus 1fil}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{Page Styles}
+%
+% The page style \pstyle{foo} is defined by defining the command
+% |\ps@foo|. This command should make only local definitions.
+% There should be no stray spaces in the definition, since they
+% could lead to mysterious extra spaces in the output.
+%
+% \begin{macro}{\@evenhead}
+% \begin{macro}{\@oddhead}
+% \begin{macro}{\@evenfoot}
+% \begin{macro}{\@oddfoot}
+% The |\ps@...| command defines the macros |\@oddhead|,
+% |\@oddfoot|, |\@evenhead|, and |\@evenfoot| to define the running
+% heads and feet---e.g., |\@oddhead| is the macro to produce the
+% contents of the heading box for odd-numbered pages. It is called
+% inside an |\hbox| of width |\textwidth|.
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsubsection{Marking conventions}
+%
+% To make headings determined by the sectioning commands, the page
+% style defines the commands |\chaptermark|, |\sectionmark|,
+% \ldots,\\
+% where |\chaptermark{|\meta{TEXT}|}| is called by
+% |\chapter| to set a mark, and so on.
+%
+% The |\...mark| commands and the |\...head| macros are defined
+% with the help of the following macros. (All the |\...mark|
+% commands should be initialized to no-ops.)
+%
+% \LaTeX{} extends \TeX's |\mark| facility by producing two kinds
+% of marks, a `left' and a `right' mark, using the following
+% commands:
+% \begin{flushleft}
+% |\markboth{|\meta{LEFT}|}{|\meta{RIGHT}|}|: Adds both marks.
+%
+% |\markright{|\meta{RIGHT}|}|: Adds a `right' mark.
+%
+% |\leftmark|: Used in the |\@oddhead|, |\@oddfoot|, |\@evenhead|
+% or |\@evenfoot| macros, it gets the current `left'
+% mark. |\leftmark| works like \TeX's |\botmark|
+% command.
+%
+% |\rightmark|: Used in the |\@oddhead|, |\@oddfoot|, |\@evenhead|
+% or |\@evenfoot| macros, it gets the current
+% `right' mark. |\rightmark| works like \TeX's
+% |\firstmark| command.
+% \end{flushleft}
+%
+% The marking commands work reasonably well for right marks
+% `numbered within' left marks--e.g., the left mark is changed by a
+% |\chapter| command and the right mark is changed by a |\section|
+% command. However, it does produce somewhat anomalous results if
+% two |\markboth|'s occur on the same page.
+%
+%
+% Commands like |\tableofcontents| that should set the marks in some
+% page styles use a |\@mkboth| command, which is |\let| by the
+% pagestyle command (|\ps@...|) to |\markboth| for setting the
+% heading or to |\@gobbletwo| to do nothing.
+%
+%
+% \begin{macrocode}
+ %%%\mark{{}{}} % Initializes TeX's marks <--- can vanish
+% \end{macrocode}
+%
+% \begin{macro}{\standard}
+% \begin{macro}{\yearofedition}
+% \begin{macro}{\languageofedition}
+% These commands are to be used in the document preamble. They
+% are used to specify the identification of the standard,
+% the year of the standard and the language of the standard.
+% For example, for a DIS printed in 1995 in English:
+% \begin{verbatim}
+% \standard{ISO/DIS 10303-321}
+% \yearofedition{1995}
+% \languageofedition{(E)}
+% \end{verbatim}
+% \begin{macro}{\thestandard}
+% \begin{macro}{\thesyear}
+% \begin{macro}{\theslanguage}
+% \begin{macro}{\@runninghead}
+% |\thestandard| and |\thesyear| hold the number and year of the
+% standard being documented. |\theslanguage| holds the ISO
+% identification of the publication language; note that
+% this must include parentheses around the code letter.
+% \begin{macrocode}
+\gdef\thestandard{}
+\gdef\thesyear{}
+\gdef\theslanguage{}
+\def\standard#1{\gdef\thestandard{#1}}
+\def\yearofedition#1{\gdef\thesyear{#1}}
+\def\languageofedition#1{\gdef\theslanguage{#1}}
+% \end{macrocode}
+% |\@runninghead| contains the document identification text for
+% the running head. Its value depends on the \Lopt{otherdoc} option.
+% \begin{macrocode}
+\ifotherdoc
+% \end{macrocode}
+% This is not intended to be a standard, so just use |\thestandard| text.
+% \begin{macrocode}
+ \newcommand{\@runninghead}{\thestandard}
+\else
+% \end{macrocode}
+% It either is, or is intended to become, a standard,
+% `so the year and language are
+% required as well; note the colon.
+% \begin{macrocode}
+ \newcommand{\@runninghead}{\thestandard:\thesyear\theslanguage}
+\fi
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\copyrighthead}
+%
+% |\copyrighthead| contains the text for a copyright mark
+% in a heading.
+% However, it should be blank if the document is not copyrighted.
+% \changes{v2.3}{2001/07/06}{Changed \cs{copyrighthead}}
+% \begin{macrocode}
+\newcommand{\copyrighthead}{\ifc@pyright
+ {\mbox{\copyright \textsc{\copyrightname} \thesyear{} --- All rights reserved}}
+ \else
+ \mbox{}
+ \fi}
+
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\extrahead}
+% |\extrahead| puts its contents into the page header (e.g., a document
+% number). Use it in the preamble as |\renewcommand{\extrahead}{N5496}|.
+% \changes{v2.3}{2001/07/06}{Added \cs{extrahead}}
+% \begin{macrocode}
+\newcommand{\extrahead}{\mbox{}}
+
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Defining the page styles}
+%
+% The pagestyles \pstyle{empty} and \pstyle{plain} are defined
+% in \file{latex.dtx}.
+%
+% \begin{macro}{\ps@headings}
+% \pstyle{headings} is the typical pagestyle throughout the document.
+% The header contains the identification of the standard.
+% The footer has the page number at the outer edge and a copyright
+% notice at the inner.
+% \changes{v2.3}{2001/07/06}{The headings pagestyle has been modified}
+% \begin{macrocode}
+\newcommand{\ps@headings}{%
+ \def\@oddhead{\bfseries\extrahead\hfil\@runninghead}%
+ \def\@evenhead{\bfseries\@runninghead\hfil\extrahead}%
+ \def\@oddfoot{\copyrighthead\hfil\thepage}%
+ \def\@evenfoot{\thepage\hfil\copyrighthead}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\ps@startpage}
+% The \pstyle{startpage} page style is similar to \pstyle{headings}
+% but without a copyright notice.
+% \changes{v2.3}{2001/07/06}{The startpage pagestyle modified like headings}
+% \begin{macrocode}
+\newcommand{\ps@startpage}{%
+ \def\@oddhead{\bfseries\extrahead\hfil\@runninghead}%
+ \def\@evenhead{\bfseries\@runninghead\hfil\extrahead}%
+ \def\@oddfoot{\hfil\thepage}%
+ \def\@evenfoot{\thepage\hfil}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\ps@nohead}
+% Pagestyle \pstyle{nohead} has no headers or footers.
+% \begin{macrocode}
+\newcommand{\ps@nohead}{%
+ \def\@oddhead{}%
+ \def\@evenhead{}%
+ \def\@oddfoot{}%
+ \def\@evenfoot{}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\rectoisotitlehead}
+% \begin{macro}{\versoisotitlehead}
+% \begin{macro}{\ps@isotitlehead}
+%
+% \pstyle{isotitlehead} is a special pagestyle for the title page of
+% a standard. |\rectoisotitlehead| and |\versoisotitlehead|
+% contain the relevent texts.
+% \changes{v2.3}{2002/01/22}{Changed the isotitlehead pagestyle}
+% \begin{macrocode}
+\newcommand{\rectoisotitlehead}{%
+ \fillline\vspace{0.1\baselineskip}\linebreak%
+ {\bfseries \uppercase{\ISname}}
+%% \mbox{\ifc@pyright\space\copyright {\scshape \copyrightname}\else
+%% \space{\scshape (\copyrightname)}\fi}
+ \hfil {\bfseries \@runninghead}%
+ \vspace{-0.5\baselineskip}\linebreak\fillline}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\newcommand{\versoisotitlehead}{%
+ \fillline\vspace{0.1\baselineskip}\linebreak%
+ {\bfseries \@runninghead} \hfil
+ {\bfseries \uppercase{\ISname}}
+%% \mbox{\ifc@pyright\space\copyright {\scshape \copyrightname}\else
+%% \space{\scshape (\copyrightname)}\fi}
+ \vspace{-0.5\baselineskip}\linebreak\fillline}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\def\ps@isotitlehead{%
+ \def\@oddhead{\parbox{\textwidth}{\protect\rectoisotitlehead}}%
+ \def\@evenhead{\parbox{\textwidth}{\protect\versoisotitlehead}}%
+%% \def\@oddfoot{\hfil\thepage}%
+%% \def\@evenfoot{\thepage\hfil}}
+ \def\@oddfoot{\copyrighthead\hfil\thepage}%
+ \def\@evenfoot{\thepage\hfil\copyrighthead}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \section{Document Markup} \label{sec:docm}
+%
+% \subsection{The title}
+%
+% In this class the |\title| command is somewhat different to that
+% in the standard classes.
+%
+% \begin{macro}{\title}
+% \begin{macro}{\thetitle}
+% \begin{macro}{\introelement}
+% \begin{macro}{\mainelement}
+% \begin{macro}{\compelement}
+% The command |\title{|\meta{intro}|}{|\meta{main}|}{|\meta{comp}|}|
+% produces a macro |\thetitle| which is used when generating the
+% first normative clause.
+%
+% First define a default |\thetitle|.
+% \begin{macrocode}
+\gdef\thetitle{}
+% \end{macrocode}
+% Define the elements to be used in the title.
+% \changes{v2}{1997/11/30}{Tweaked the \cs{title} command}
+% \changes{v2.3}{2001/07/06}{Tweaked the \cs{title} command by adding \cs{par}}
+% \begin{macrocode}
+\newcommand{\introelement}[1]{\if\isoemptystring{#1}\else {#1 ---\newline}\fi}
+\newcommand{\mainelement}[1]{#1}
+\newcommand{\compelement}[1]{\if\isoemptystring{#1}\else { --- \newline #1}\fi}
+% \end{macrocode}
+% The |\title| command starts a new recto page with arabic numbering and
+% initialises the counters. It also uses the |isotitlehead|.
+% \begin{macrocode}
+\renewcommand{\title}[3]{%
+ \cleardoublepage\pagenumbering{arabic}%
+ \setcounter{clause}{0}%
+ \ifotherdoc \else %
+ \protect\thispagestyle{isotitlehead}
+ \fi
+ \gdef\thetitle{{\Tfont \introelement{#1} %
+ \mainelement{#2} %
+ \compelement{#3}\par}}
+ \if@twocolumn
+ \twocolumn[\vspace*{2\baselineskip}\vbox to 35mm{\thetitle}]
+ \else
+ \vspace*{2\baselineskip}\vbox to 35mm{\thetitle}
+ \fi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{The cover}
+%
+% ISO will produce the cover (pages 1 and 2) for any documents they
+% publish. It can be useful for editors to be able to provide their
+% own, informal, cover sheet.
+%
+% \begin{environment}{cover}
+% The |cover| environment is for typesetting an informal cover sheet.
+% there is no restriction on what can go into it, except that if used it
+% must be the first element in the document and the contents must not
+% exceed a single page.
+% \changes{v2.3}{2001/07/06}{Added the cover environment}
+% \begin{macrocode}
+\newenvironment{cover}{%
+ \if@twocolumn
+ \@restonecoltrue\onecolumn
+ \else
+ \@restonecolfalse
+ \fi
+ \setcounter{page}{1} \pagenumbering{roman}
+ \thispagestyle{empty}}{%
+% \end{macrocode}
+% A copyright notice has to go at the foot of the second page.
+% \begin{macrocode}
+%% \clearpage
+ \thispagestyle{startpage}
+ \mbox{}
+ \ifc@pyright\@copyrighttext\fi
+ \newpage
+ \if@restonecol\twocolumn\fi}
+
+% \end{macrocode}
+% \end{environment}
+%
+% \subsection{Clauses}
+%
+% \subsubsection{Building blocks} The definitions in this part of a
+% class file usually make use of two internal macros, |\@startsection| and
+% |\secdef|. To understand
+% what is going on here, we describe their syntax.
+%
+% The macro |\@startsection| has 6 required arguments, optionally
+% followed by a $*$, an optional argument and a required argument:
+%
+% |\@startsection|\meta{name}\meta{level}\meta{indent}^^A
+% \meta{beforeskip}\meta{afterskip}\meta{style}
+% optional *\\
+% \null\hphantom{\bslash @startsection}^^A
+% |[|\meta{altheading}|]|\meta{heading}
+%
+% It is a generic command to start a section, the arguments have
+% the following meaning:
+%
+% \begin{description}
+% \item[\meta{name}] The name of the user level command, e.g.,
+% `section'.
+% \item[\meta{level}] A number, denoting the depth of the section
+% -- e.g., chapter=1, section = 2, etc. A section number
+% will be printed if and only if \meta{level} $<=$ the value
+% of the \Lcount{secnumdepth} counter.
+% \item[\meta{indent}] The indentation of the heading from the left
+% margin
+% \item[\meta{beforeskip}] The absolute value of this argument
+% gives the skip to leave above the heading. If it is
+% negative, then the paragraph indent of the text following
+% the heading is suppressed.
+% \item[\meta{afterskip}] If positive, this gives the skip to leave
+% below the heading, else it gives the skip to leave to the
+% right of a run-in heading.
+% \item[\meta{style}] Commands to set the style of the heading.
+% \item[$*$] When this is missing the heading is numbered and the
+% corresponding counter is incremented.
+% \item[\meta{altheading}] Gives an alternative heading to use in
+% the table of contents and in the running heads. This should
+% be present when the $*$ form is used.
+% \item[\meta{heading}] The heading of the new section.
+% \end{description}
+% A sectioning command is normally defined to |\@startsection| and
+% its first six arguments.
+%
+% The macro |\secdef| can be used when a sectioning command is
+% defined without using |\@startsection|. It has two arguments:
+%
+% |\secdef|\meta{unstarcmds}\meta{starcmds}
+%
+% \begin{description}
+% \item[\meta{unstarcmds}] Used for the normal form of a
+% sectioning command.
+% \item[\meta{starcmds}] Used for the $*$-form of a
+% sectioning command.
+% \end{description}
+%
+% You can use |\secdef| as follows:
+% \begin{verbatim}
+% \def\chapter { ... \secdef \CMDA \CMDB }
+% \def\CMDA [#1]#2{ ... } % Command to define
+% % \chapter[...]{...}
+% \def\CMDB #1{ ... } % Command to define
+% % \chapter*{...}
+% \end{verbatim}
+%
+% \changes{v2.2}{2000/01/10}{deleted \cs{@prwstartsection} }
+%
+% \subsubsection{Overview}
+%
+% ISO terminology uses `clause' instead of the typical terms for
+% subdivisions in a document, although they do use the term `section'.
+% Accordingly, we have defined new terms for the document sectioning
+% commands. We also use the shorthand `ss' for `subsub', and so on.
+%
+% \begin{center}
+% \begin{tabular}{llc}\hline
+% \LaTeX\ & ISO & level \\ \hline
+% chapter & clause, annex & 1 \\
+% section & sclause & 2 \\
+% subsection & ssclause & 3 \\
+% subsubsection & sssclause & 4 \\
+% paragraph & ssssclause & 5 \\
+% subparagraph & sssssclause & 6 \\ \hline
+% \end{tabular}
+% \end{center}
+%
+% We also provide `annex' commands, which are equivalent to a `clause'
+% command.
+%
+% \subsubsection{Hyperref ToC levels}
+%
+% \begin{macro}{\toclevel@clause}
+% \begin{macro}{\toclevel@sclause}
+% \begin{macro}{\toclevel@ssclause}
+% \begin{macro}{\toclevel@sssclause}
+% \begin{macro}{\toclevel@ssssclause}
+% \begin{macro}{\toclevel@sssssclause}
+% \begin{macro}{\toclevel@annex}
+% \begin{macro}{\toclevel@index}
+% The \Lpack{hyperref} package needs to know ToC entry levels.
+% \changes{v2.4}{2002/07/22}{Added \cs{toclevel@} macros for hyperref}
+% \begin{macrocode}
+\newcommand*{\toclevel@clause}{1}
+\newcommand*{\toclevel@sclause}{2}
+\newcommand*{\toclevel@ssclause}{3}
+\newcommand*{\toclevel@sssclause}{4}
+\newcommand*{\toclevel@ssssclause}{5}
+\newcommand*{\toclevel@sssssclause}{6}
+\newcommand*{\toclevel@annex}{1}
+\newcommand*{\toclevel@index}{1}
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsubsection{Define Counters}
+%
+% \begin{macro}{\c@secnumdepth}
+% The value of the counter \Lcount{secnumdepth} gives the depth of
+% the highest-level sectioning command that is to produce section
+% numbers.
+% \begin{macrocode}
+\setcounter{secnumdepth}{6}
+% \end{macrocode}
+% \end{macro}
+%
+% The macro\\
+% |\newcounter{|\meta{newctr}|}[|\meta{oldctr}|]|\\
+% defines\meta{newctr} to be a counter, which is reset to zero when
+% counter \meta{oldctr} is stepped. Counter \meta{oldctr} must
+% already be defined.
+%
+% \begin{macro}{\c@annex}
+% \begin{macro}{\c@clause}
+% \begin{macro}{\c@fibicl@use}
+% These counters are used for the sectioning numbers.
+% Clause and annex are the top level document divisions.
+% \begin{macrocode}
+\newcounter{annex}
+\newcounter{clause}
+\newcounter{fibicl@use}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\c@sclause}
+% \begin{macro}{\c@ssclause}
+% \begin{macro}{\c@sssclause}
+% \begin{macro}{\c@ssssclause}
+% \begin{macro}{\c@sssssclause}
+% The lower level divisions get reset by higher level divisions.
+% \begin{macrocode}
+\newcounter{sclause}[clause]
+\newcounter{ssclause}[sclause]
+\newcounter{sssclause}[ssclause]
+\newcounter{ssssclause}[sssclause]
+\newcounter{sssssclause}[ssssclause]
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\c@yextra}
+% We need an extra counter for the \Lpack{hyperref} package.
+% \changes{v2.4}{2002/07/22}{Added \cs{c@yextra} counter for hyperref}
+% \begin{macrocode}
+\newcounter{yextra}
+
+% \end{macrocode}
+% \end{macro}
+%
+% For any counter \Lcount{CTR}, |\theCTR| is a macro that defines
+% the printed version of counter \Lcount{CTR}. It is defined in
+% terms of the following macros:
+%
+% |\arabic{|\Lcount{COUNTER}|}| prints the value of
+% \Lcount{COUNTER} as an arabic numeral.
+%
+% |\roman{|\Lcount{COUNTER}|}| prints the value of
+% \Lcount{COUNTER} as a lowercase roman numeral.
+%
+% |\Roman{|\Lcount{COUNTER}|}| prints the value of
+% \Lcount{COUNTER} as an uppercase roman numeral.
+%
+% |\alph{|\Lcount{COUNTER}|}| prints the value of \Lcount{COUNTER}
+% as a lowercase letter: $1 =$~a, $2 =$~ b, etc.
+%
+% |\Alph{|\Lcount{COUNTER}|}| prints the value of \Lcount{COUNTER}
+% as an uppercase letter: $1 =$~A, $2 =$~B, etc.
+%
+% \begin{macro}{\theannex}
+% \begin{macro}{\theclause}
+% \begin{macro}{\thefibicl@use}
+% The top level division numbers.
+% \begin{macrocode}
+\renewcommand{\theannex}{\Alph{annex}}
+\renewcommand{\theclause}{\arabic{clause}}
+\renewcommand{\thefibicl@use}{\arabic{fibicl@use}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\thesclause}
+% \begin{macro}{\thessclause}
+% \begin{macro}{\thesssclause}
+% \begin{macro}{\thessssclause}
+% \begin{macro}{\thesssssclause}
+% The lower level division number representations.
+% \begin{macrocode}
+\renewcommand{\thesclause}{\theclause.\arabic{sclause}}
+\renewcommand{\thessclause}{\thesclause.\arabic{ssclause}}
+\renewcommand{\thesssclause}{\thessclause.\arabic{sssclause}}
+\renewcommand{\thessssclause}{\thesssclause.\arabic{ssssclause}}
+\renewcommand{\thesssssclause}{\thessssclause.\arabic{sssssclause}}
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\theHannex}
+% \begin{macro}{\theHclause}
+% \begin{macro}{\theHsclause}
+% \begin{macro}{\theHssclause}
+% \begin{macro}{\theHsssclause}
+% \begin{macro}{\theHssssclause}
+% \begin{macro}{\theHsssssclause}
+% For \Lpack{hyperref} we have to specify a similar set of
+% number representations.
+% \changes{v2.4}{2002/07/22}{Added a lot of \cs{theHsclause} like commands}
+% \begin{macrocode}
+\newcommand{\theHannex}{\Alph{annex}}
+\newcommand{\theHclause}{\arabic{clause}}
+\newcommand{\theHsclause}{\theHclause.\arabic{sclause}}
+\newcommand{\theHssclause}{\theHsclause.\arabic{ssclause}}
+\newcommand{\theHsssclause}{\theHssclause.\arabic{sssclause}}
+\newcommand{\theHssssclause}{\theHsssclause.\arabic{ssssclause}}
+\newcommand{\theHsssssclause}{\theHssssclause.\arabic{sssssclause}}
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \subsubsection{Clauses}
+%
+%
+% \begin{macro}{\zerocounters}
+% \changes{v2.2}{2000/01/10}{Added \cs{zerocounters}}
+% At the start of each document division counters like for notes and examples
+% are zeroed.
+% \begin{macrocode}
+\newcommand{\zerocounters}{%
+ \setcounter{note}{0}\setcounter{example}{0}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@hangfrom}
+% Multiline clause headings are flushleft (block paragraph style).
+% \changes{v2.3}{200/07/06}{Changed \cs{@hangfrom} for block para clauses}
+% \begin{macrocode}
+\renewcommand{\@hangfrom}[1]{#1}
+
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\clause}
+% The command to start a new clause.
+% \changes{v2}{1997/11/30}{Use beforecskip and aftercskip for skips around clause headings}
+% \changes{v2.2}{2000/01/10}{To support tex4ht all clausing commands use \cs{@startsection}}
+% \begin{macrocode}
+\newcommand{\clause}{\zerocounters
+ \addtocounter{clause}{1}
+ \typeout{Clause: \theclause}
+ \addtocounter{clause}{-1}
+ \tocskip{\tocentryskip}
+ \@startsection{clause}{1}%
+ {\z@}%
+ {\beforecskip}%
+ {\aftercskip}%
+%% {\raggedright\Cfont\bfseries}}
+ {\raggedright\Cfont}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\fibicl@use}
+% \changes{v2.2}{2000/01/10}{To support tex4ht added \cs{fibicl@use}}
+% Document divisions like the Foreword and the Bibliography are
+% effectively unnumbered clauses, but which appear in the ToC. In order
+% to ease support for the \Lpack{tex4ht} package,
+% the |\fibicl@use| command is defined, but should
+% only be used in its starred form.
+% \begin{macrocode}
+\newcommand{\fibicl@use}{%
+ \@startsection{fibicl@use}{1}%
+ {\z@}%
+ {\beforecskip}%
+ {\aftercskip}%
+%% {\raggedright\Cfont\bfseries}}
+ {\raggedright\Cfont}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \subsubsection{Lower level headings}
+%
+% These commands all make use of |\@startsection|. They also
+% reinitialize the note and example counters.
+% \begin{macro}{\sclause}
+% \begin{macro}{\ssclause}
+% \begin{macro}{\sssclause}
+% \begin{macro}{\ssssclause}
+% \begin{macro}{\sssssclause}
+% \changes{v2}{1997/11/30}{Use beforescskip and afterscskip, etc, for skips around s...clause headings}
+% \changes{v2}{1997/11/30}{s...clauses reset the example counter}
+% \begin{macrocode}
+\newcommand{\sclause}{\zerocounters
+ \@startsection{sclause}{2}%
+ {\z@}%
+ {\beforescskip}%
+ {\afterscskip}%
+ {\raggedright\SCfont}}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\newcommand{\ssclause}{\zerocounters
+ \@startsection{ssclause}{3}%
+ {\z@}%
+ {\beforesscskip}%
+ {\aftersscskip}%
+ {\raggedright\SSCfont}}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\newcommand{\sssclause}{\zerocounters
+ \@startsection{sssclause}{4}%
+ {\z@}%
+ {\beforesscskip}%
+ {\aftersscskip}%
+ {\raggedright\SSCfont}}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\newcommand{\ssssclause}{\zerocounters
+ \@startsection{ssssclause}{5}%
+ {\z@}%
+ {\beforesscskip}%
+ {\aftersscskip}%
+ {\raggedright\SSCfont}}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\newcommand{\sssssclause}{\zerocounters
+ \@startsection{sssssclause}{6}%
+ {\z@}%
+ {\beforesscskip}%
+ {\aftersscskip}%
+ {\raggedright\SSCfont}}
+% \end{macrocode}
+% Preloaded definitions.
+% \begin{macrocode}
+\def\clausemark#1{}
+\def\sclausemark#1{}
+\def\ssclausemark#1{}
+\def\sssclausemark#1{}
+\def\ssssclausemark#1{}
+\def\sssssclausemark#1{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+%
+%
+% \subsubsection{Annexes}
+%
+% \begin{macro}{\init@nnex}
+% As an annex command has to do quite a lot, we define the internal
+% |\init@nnex| command as a worker. It has to:
+% \begin{itemize}
+% \item clear the page;
+% \item reset the table and figure counters to zero;
+% \item redefine the |\thefigure| and the |\thetable| to precede them
+% with the annex letter;
+% \item reset the |sclause| counter to zero;
+% \item test for annexes I and O since these are not allowed by ISO.
+% \end{itemize}
+% Use as: |\@annex{|\meta{title}|}{|\meta{typeset body kind}|}{|\meta{typeset toc kind}|}|
+% \changes{v1}{1996/06/19}{Added blank line after `annexes' title in toc.}
+% \changes{v2}{1997/11/30}{Deleted Annex heading in the ToC}
+% \changes{v2}{1997/11/30}{Added annex type to ToC}
+% \changes{v2}{1997/11/30}{Annexes reset the note and example counters}
+% \changes{v2}{1997/12/01}{Replaced \cs{typeout} by \cs{ClassError}}
+% \changes{v2.2}{2000/01/10}{Reimplented annexes to support tex4ht}
+% \changes{v2.4}{2002/07/22}{Changed \cs{init@nnex} for hyperref}
+% \begin{macrocode}
+\newcommand{\init@nnex}{%
+ \clearpage
+% \end{macrocode}
+% Reset the counters and test for illegal annex numbering
+% \begin{macrocode}
+ \setcounter{table}{0}
+ \setcounter{figure}{0}
+ \setcounter{sclause}{0}
+ \zerocounters
+ \refstepcounter{annex}
+ \ifnum 9=\value{annex} \refstepcounter{annex}\fi
+ \ifnum 15=\value{annex} \refstepcounter{annex}\fi
+% \end{macrocode}
+% Reset the numbering scheme when first called.
+% \begin{macrocode}
+ \ifnum 1=\value{annex}
+ \renewcommand{\clause}{%
+ \ClassWarning{iso}{%
+ \protect\clause\space commands are not allowed after starting Annexes}{%
+ Type \space <return> to proceed and I'll ignore your \protect\clause.}}
+ \renewcommand{\thesclause}{\theannex.\arabic{sclause}}
+ \renewcommand{\thetable}{\theannex.\arabic{table}}
+ \renewcommand{\thefigure}{\theannex.\arabic{figure}}
+ \renewcommand{\theHsclause}{\theHannex.\arabic{sclause}}
+ \ifisohyper
+ \renewcommand{\theHtable}{\theHannex.\arabic{table}}
+ \renewcommand{\theHfigure}{\theHannex.\arabic{figure}}
+ \fi
+ \fi
+% \end{macrocode}
+% Prevent floats appearing before the title.
+% \begin{macrocode}
+ \global\@topnum\z@
+ \@afterindentfalse
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\makepreannexhead}
+% Command to typeset the first part of an annex title. Use as
+% |\makepreannexhead{|\meta{type}|}|.
+% \begin{macrocode}
+\newcommand{\makepreannexhead}[1]{%
+ \begin{center}
+ {{\Cfont \annexname~\theannex}\\\Large #1}
+ \end{center}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\makeannexhead}
+% Typeset the title name of an annex.
+% Use as |\makeannexhead{|\meta{title}|}|.
+% \begin{macrocode}
+\newcommand{\makeannexhead}[1]{%
+ \centerline{\Cfont #1}
+ \vskip 0.5\baselineskip
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\addannextotoc}
+% Add an annex title to the ToC.
+% Use as |\addannextotoc{|\meta{type}|}{|\meta{title}|}|.
+% \changes{v2.4}{2002/07/22}{Fixed minor problem in \cs{addannextotoc}}
+% \begin{macrocode}
+\newcommand{\addannextotoc}[2]{%
+ \tocskip{\tocentryskip}
+ \addcontentsline{toc}{annex}{\ifnum2>\c@secnumdepth \else
+ \protect\numberline{\annexname~\theannex\space #1}\fi #2}%
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@infannex}
+% \begin{macro}{\infannex}
+% \begin{macro}{\@normannex}
+% \begin{macro}{\normannex}
+% \begin{macro}{\@repannex}
+% \begin{macro}{\repannex}
+% Three kinds of annexes are provided. |\infannex| is an informative
+% annex and |\normannex| is a normative annex. Just to round things
+% out, |\repannex| is neither of these.
+%
+% All the titles are centered, together with the kind of annex.
+%
+% Here are the informative annex commands.
+% \begin{macrocode}
+\newcommand{\@infannex}[1]{%
+ \makepreannexhead{(\informativename)}
+ \makeannexhead{#1}
+ \addannextotoc{(\informativename)}{#1}
+}
+\newcommand{\infannex}[1]{%
+ \init@nnex
+ \@infannex{#1}
+ \typeout{Informative annex: #1}
+}
+% \end{macrocode}
+%
+% Here are the normative annex commands.
+% \begin{macrocode}
+\newcommand{\@normannex}[1]{%
+ \makepreannexhead{(\normativename)}
+ \makeannexhead{#1}
+ \addannextotoc{(\normativename)}{#1}
+}
+\newcommand{\normannex}[1]{%
+ \init@nnex
+ \@normannex{#1}
+ \typeout{Normative annex: #1}
+}
+% \end{macrocode}
+%
+% Here are the other annex commands.
+% \begin{macrocode}
+\newcommand{\@repannex}[1]{%
+ \makepreannexhead{}
+ \makeannexhead{#1}
+ \addannextotoc{}{#1}
+}
+\newcommand{\repannex}[1]{%
+ \init@nnex
+ \@repannex{#1}
+ \typeout{Annex: #1}
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{Lists}
+%
+% \subsubsection{General List Parameters}
+%
+% The following commands are used to set the default values for the list
+% environment's parameters. See the \LaTeX{} manual for an explanation
+% of the meanings of the parameters. Defaults for the list
+% environment are set as follows. First, |\rightmargin|,
+% |\listparindent| and |\itemindent| are set to 0pt. Then, for a Kth
+% level list, the command |\@listK| is called, where `K' denotes `i',
+% '`i', ... , `vi'. (I.e., |\@listiii| is called for a third-level
+% list.) By convention, |\@listK| should set |\leftmargin| to
+% |\leftmarginK|.
+%
+% \changes{v2}{1997/11/30}{list labels are flush with left margin}
+% \changes{v2}{1997/11/30}{list text is indented 3 spaces from the label}
+%
+% \begin{macro}{\leftmargin}
+% \begin{macro}{\leftmargini}
+% \begin{macro}{\leftmarginii}
+% \begin{macro}{\leftmarginiii}
+% \begin{macro}{\leftmarginiv}
+% \begin{macro}{\leftmarginv}
+% \begin{macro}{\leftmarginvi}
+% For efficiency, level-one list's values are defined at top level, and
+% |\@listi| is defined to set only |\leftmargin|.
+%
+% \begin{macrocode}
+\setlength{\leftmargini}{2em}
+% \end{macrocode}
+% The value of |\leftmargin| has to be set at this outer level.
+% \begin{macrocode}
+\leftmargin \leftmargini
+% \end{macrocode}
+% For ISO, all lists are indented the same amount.
+% \begin{macrocode}
+\setlength{\leftmarginii}{\leftmargini}
+\setlength{\leftmarginiii}{\leftmargini}
+\setlength{\leftmarginiv}{\leftmargini}
+\setlength{\leftmarginv}{\leftmargini}
+\setlength{\leftmarginvi}{\leftmargini}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\itemindent}
+% Here we set the |\itemindent| which is the extra indentation before
+% a label.
+% \begin{macrocode}
+\setlength{\itemindent}{\z@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\labelsep}
+% \begin{macro}{\labelwidth}
+% |\labelsep| is the distance between the label and the text of an
+% item; |\labelwidth| is the width of the label.
+% \begin{macrocode}
+\setlength{\labelsep}{0.5em}
+\setlength{\labelwidth}{\leftmargini}
+ \addtolength{\labelwidth}{-\labelsep}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\partopsep}
+% When the user leaves a blank line before the environment an extra
+% vertical space of |\partopsep| is inserted, in addition to
+% |\parskip| and |\topsep|.
+% \begin{macrocode}
+%</iso>
+%<*9pt|10pt|11pt>
+\setlength\partopsep{2\p@ \@plus 1\p@ \@minus 1\p@}
+%</9pt|10pt|11pt>
+%<*iso>
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@beginparpenalty}
+% \begin{macro}{\@endparpenalty}
+% These penalties are inserted before and after a list or paragraph
+% environment. They are set to a bonus value to encourage page
+% breaking at these points.
+% \begin{macro}{\@itempenalty}
+% This penalty is inserted between list items.
+% \begin{macrocode}
+\@beginparpenalty -\@lowpenalty
+\@endparpenalty -\@lowpenalty
+\@itempenalty -\@lowpenalty
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@setitemparams}
+% Lists may be called within other list environments with differing
+% layouts. We use a routine to set the layout for \Lenv{itemize} and
+% \Lenv{enumerate} lists.
+% \changes{v2}{1997/12/02}{Added \cs{@setitemparams} routine}
+% \begin{macrocode}
+%</iso>
+%<*9pt|10pt|11pt>
+\newcommand{\@setitemparams}{%
+ \setlength{\labelsep}{0.5em}
+ \setlength{\labelwidth}{\leftmargini}
+ \addtolength{\labelwidth}{-\labelsep}
+ \setlength{\itemindent}{\z@}
+ \setlength{\parsep}{\baselineskip}
+ \topsep \z@ \@plus1\p@ \@minus1\p@
+ \itemsep \z@ \@plus1\p@ \@minus1\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@listI}
+% \begin{macro}{\@listi}
+% |\@listI| defines top level and |\@listi| values of
+% |\leftmargin|, |\parsep|, |\topsep|, and |\itemsep|
+%
+% \begin{macrocode}
+\def\@listi{\leftmargin\leftmargini
+ %%% \itemindent\labelsep
+ %% \itemindent\z@
+ %% \parsep\baselineskip
+ %% \topsep 0\p@ \@plus1\p@ \@minus1\p@
+ %% \itemsep0\p@ \@plus1\p@ \@minus1\p@}
+ \@setitemparams}
+\let\@listI\@listi
+% \end{macrocode}
+% We have to initialise these parameters.
+% \begin{macrocode}
+\@listi
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@listii}
+% \begin{macro}{\@listiii}
+% \begin{macro}{\@listiv}
+% \begin{macro}{\@listv}
+% \begin{macro}{\@listvi}
+% Here are the same macros for the lower level lists.
+% \begin{macrocode}
+\def\@listii {\leftmargin\leftmarginii
+ %%% \itemindent\labelsep}
+ %% \itemindent\z@
+ \@setitemparams
+ }
+\def\@listiii{\leftmargin\leftmarginiii
+ %%% \itemindent\labelsep}
+ %% \itemindent\z@
+ \@setitemparams
+ }
+\def\@listiv {\leftmargin\leftmarginiv
+ %%% \itemindent\labelsep}
+ %% \itemindent\z@
+ \@setitemparams
+ }
+\def\@listv {\leftmargin\leftmarginv
+ %%% \itemindent\labelsep}
+ %% \itemindent\z@
+ \@setitemparams
+ }
+\def\@listvi {\leftmargin\leftmarginvi
+ %%% \itemindent\labelsep}
+ %% \itemindent\z@
+ \@setitemparams
+ }
+%</9pt|10pt|11pt>
+%<*iso>
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsubsection{Enumerate}
+%
+% \changes{v2}{1997/11/30}{Enumeration increased from 3 to 4 levels}
+%
+% ISO only requires two levels of enumeration labelled `a)' and
+% `1)'. We include a third level and fourth labelled `i)' and `A)',
+% just in case.
+% ISO has printed ISO 10303:1994 which includes all three levels
+% defined here.
+% The enumerate environment uses four counters: \Lcount{enumi},
+% \Lcount{enumii}, \Lcount{enumiii} and \Lcount{enumiv}, where
+% \Lcount{enumN} controls the numbering of the Nth level
+% enumeration.
+%
+% \begin{macro}{\theenumi}
+% \begin{macro}{\theenumii}
+% \begin{macro}{\theenumiii}
+% \begin{macro}{\theenumiv}
+% The counters are already defined in \file{latex.dtx}, but their
+% representation is changed here.
+% \changes{v2.3}{2001/07/06}{4th level enumerate now uses Roman, not Alph}
+% \begin{macrocode}
+\renewcommand{\theenumi}{\alph{enumi}}
+\renewcommand{\theenumii}{\arabic{enumii}}
+\renewcommand{\theenumiii}{\roman{enumiii}}
+\renewcommand{\theenumiv}{\Roman{enumiv}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\labelenumi}
+% \begin{macro}{\labelenumii}
+% \begin{macro}{\labelenumiii}
+% \begin{macro}{\labelenumiv}
+% The label for each item is generated by the commands\\
+% |\labelenumi| \ldots\ |\labelenumiv|.
+% \begin{macrocode}
+\newcommand{\labelenumi}{\theenumi)}
+\newcommand{\labelenumii}{\theenumii)}
+\newcommand{\labelenumiii}{\theenumiii)}
+\newcommand{\labelenumiv}{\theenumiv)}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\p@enumii}
+% \begin{macro}{\p@enumiii}
+% \begin{macro}{\p@enumiv}
+% The expansion of |\p@enumN||\theenumN| defines the output of a
+% |\ref| command when referencing an item of the Nth level of an
+% enumerated list.
+% \begin{macrocode}
+\renewcommand{\p@enumii}{\theenumi}
+\renewcommand{\p@enumiii}{\p@enumii\theenumii}
+\renewcommand{\p@enumiv}{\p@enumiii\theenumiii}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{environment}{enumerate}
+% We modify the default |enumerate| environment to make labels
+% flush left in the label box.
+% \begin{macrocode}
+\def\enumerate{%
+ \ifnum \@enumdepth >\thr@@\@toodeep\else
+ \advance\@enumdepth\@ne
+ \edef\@enumctr{enum\romannumeral\the\@enumdepth}%
+
+ \expandafter
+ \list
+ \csname label\@enumctr\endcsname
+ {\usecounter\@enumctr\def\makelabel##1{##1\hfill}}%
+ \fi}
+\let\endenumerate =\endlist
+% \end{macrocode}
+% \end{environment}
+%
+% \subsubsection{Itemize}
+%
+% \changes{v2}{1997/11/30}{Itemize increased from 3 to 4 levels}
+%
+% ISO only requires one level labelled with either a long dash
+% or a bullet. We provide
+% four levels, three of which have been used in ISO 10303:1994.
+%
+% \begin{macro}{\labelitemi}
+% \begin{macro}{\labelitemii}
+% \begin{macro}{\labelitemiii}
+% \begin{macro}{\labelitemiii}
+% Itemization is controlled by the commands: |\labelitemi|,
+% |\labelitemii|, etc., which define
+% the labels of the various itemization levels: the symbols used are
+% bold em-dash, bullet, asterisk, and centered period.
+%
+% \changes{v2}{1997/11/30}{Itemize dash changed from en- to em-dash}
+% \changes{v2}{1997/11/30}{1st and 2nd level itemize symbols swapped}
+% \changes{v2.1}{1999/02/15}{1st and 2nd level itemize symbols swapped}
+% \changes{v2.3}{2001/07/06}{All itemize labels are em dashes}
+% \begin{macrocode}
+\newcommand{\labelitemi}{{\normalfont\bfseries \textemdash}\hfill}
+%%\newcommand{\labelitemii}{\textbullet\hfill}
+%%\newcommand{\labelitemiii}{\textasteriskcentered}
+%%\newcommand{\labelitemiv}{\textperiodcentered}
+\newcommand{\labelitemii}{\labelitemi}
+\newcommand{\labelitemiii}{\labelitemi}
+\newcommand{\labelitemiv}{\labelitemi}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{environment}{itemize}
+% We modify the default |itemize| environment to make the labels
+% flush left in the label box.
+% \begin{macrocode}
+\def\itemize{%
+ \ifnum \@itemdepth >\thr@@\@toodeep\else
+ \advance\@itemdepth\@ne
+ \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
+
+ \expandafter
+ \list
+ \csname\@itemitem\endcsname
+ {\def\makelabel##1{##1\hfill}}%
+ \fi}
+\let\enditemize =\endlist
+% \end{macrocode}
+% \end{environment}
+%
+% \subsubsection{Description}
+%
+% \begin{environment}{description}
+% The description environment is defined here -- while the default itemize
+% and enumerate environments are defined in \file{latex.dtx}.
+%
+% \begin{macrocode}
+\newenvironment{description}%
+ {\list{}{\labelwidth\z@ \itemindent 0.5em \labelsep 0.5em
+ \let\makelabel\descriptionlabel}}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\descriptionlabel}
+% To change the formatting of the label, you must redefine
+% |\descriptionlabel|. Note that the label includes a colon.
+%
+% \begin{macrocode}
+\newcommand*{\descriptionlabel}[1]{\normalfont\bfseries #1:\hfill}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Defining new environments}
+%
+%
+% \subsubsection{Quotation}
+%
+% This is not required by ISO, but we leave it in anyway.
+% \begin{environment}{quotation}
+% The quotation environment is defined by making clever use of
+% the list environment's parameters. The lines in the environment
+% are set smaller than |\textwidth|. The first line of a paragraph
+% inside this environment is indented.
+%
+% \begin{macrocode}
+\newenvironment{quotation}%
+ {\list{}{\listparindent 1.5em%
+ \itemindent \listparindent
+ \rightmargin \leftmargin
+ \parsep \z@ \@plus\p@}%
+ \item[]}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \subsubsection{Quote}
+%
+% This is also not an ISO requirement, but leave it in anyway.
+%
+% \begin{environment}{quote}
+% The quote environment is like the quotation environment except
+% that paragraphs are not indented.
+%
+% \begin{macrocode}
+\newenvironment{quote}%
+ {\list{}{\rightmargin\leftmargin}%
+ \item[]}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \subsubsection{Theorem}
+%
+% This document class does not define it's own theorem environments,
+% the defaults, supplied by \file{latex.dtx} are available.
+%
+% \subsubsection{Notes}
+%
+% ISO requires that information which is essential to the
+% understanding of a standard but which is not a requirement
+% is to be given in the form of a note. In the Directives edition 2,
+% there were three
+% styles of note:
+% \begin{enumerate}
+% \item isolated notes which are marked NOTE - 1, NOTE - 2, etc.
+% \item a local grouping of notes marked \\
+% NOTES \\
+% 1 - \ldots \\
+% 2 - \ldots
+% \item an isolated note that is not numbered because it is
+% the only one in that (sub-) clause of the document.
+% \end{enumerate}
+%
+% The 3rd edition removed the local grouping.
+%
+% \begin{macro}{\ifinfloat}
+% Special consideration has to be given when notes appear within a float.
+% \changes{v2}{1997/12/02}{Deleted \cs{ifintable} as \cs{ifinfloat} does the job}
+% \begin{macrocode}
+\newif\ifinfloat\infloatfalse
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\c@note}
+% \begin{macro}{\c@floatnote}
+% \begin{macro}{\thenote}
+% \begin{macro}{\thefloatnote}
+% Define note counters, where the counter \Lcount{note} for body
+% notes gets reset within each new clause and notes
+% within floats have their own numbering scheme
+% via \Lcount{floatnote}.
+% \begin{macrocode}
+\newcounter{note}[clause]
+\renewcommand{\thenote}{\arabic{note}}
+\newcounter{floatnote}
+\renewcommand{\thefloatnote}{\arabic{floatnote}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\theHnote}
+% \begin{macro}{\theHfloatnote}
+% We also need \Lpack{hyperref} representations.
+% \changes{v2.4}{2002/07/22}{Added \cs{theHnote} and \cs{theHfloatnote}}
+% \begin{macrocode}
+\newcommand{\theHnote}{\thenote.\arabic{yextra}}
+\newcommand{\theHfloatnote}{\thefloatnote.\arabic{yextra}}
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{macro}{\notelabel}
+% Labeling of notes (and examples).
+% \begin{macrocode}
+\newcommand{\notelabel}[1]{{#1\hfill}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{notes}
+% This environment produced a fixed heading followed by a
+% numbered list. The environment is defined in terms of a general list.
+%
+% Use as:
+% \begin{verbatim}
+% \begin{notes}
+% \begin{note}Text of first note ... \end{note}
+% \begin{note}Text of second note ... \end{note}
+% \end{notes}
+% \end{verbatim}
+%
+% With the 3rd edition of the ISO Directives, this has been made a no-op
+% and is only retained for compatability. The original code was:
+% \begin{verbatim}
+% \newif\ifinnotes\innotesfalse
+% \newenvironment{notes}{\list{}%
+% {\ifinfloat \leftmargin 0em \else \leftmargin 2em\fi
+% \itemindent 0.5em \labelwidth 0em
+% \labelsep 0.5em \listparindent 0em
+% \let\makelabel\notelabel}
+% \innotestrue
+% \Nfont\item[\notesname]\mbox{}\nopagebreak[2]}%
+% {\innotesfalse\endlist}
+% \end{verbatim}
+%
+% \changes{v2}{1997/11/30}{notes environment made a no-op}
+% \changes{v2.3}{2001/07/06}{Deleted notes environment}
+% \end{environment}
+%
+% \begin{macro}{\@setnoteparams}
+% Because notes, and examples, have the same basic layout we use a
+% routine to set the various parameters.
+% \changes{v2}{1997/12/02}{Added \cs{@setnoteparams}}
+% \changes{v2.3}{2001/07/06}{Notes not indented}
+% \begin{macrocode}
+\newcommand{\@setnoteparams}{%
+ \setlength{\partopsep}{\z@}
+ \setlength{\topsep}{\z@}
+ \setlength{\labelsep}{1em}
+ \setlength{\itemindent}{\labelsep}
+ \setlength{\labelwidth}{\z@}
+ \setlength{\listparindent}{\z@}
+ \setlength{\leftmargin}{\z@} % added in v2.3
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{anote}
+% An isolated un-numbered note.
+% \changes{v2}{1997/11/30}{dash removed from NOTE label}
+% \changes{v2}{1997/12/02}{Adjusted anote margins when in a float}
+% \begin{macrocode}
+\newenvironment{anote}{\list{}{%
+%% \ifinfloat \setlength{\leftmargin}{\z@} \else
+%% \setlength{\leftmargin}{2em} \fi
+ \@setnoteparams}
+ \Nfont\item[\notename]}%
+{\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{environment}{note}
+% A numbered note.
+% \changes{v2.4}{2002/07/22}{Changed note environment for hyperref}
+% \begin{macrocode}
+\newenvironment{note}{\list{}{%
+% \end{macrocode}
+% Use the appropriate counter: normally \Lcount{note} but
+% \Lcount{floatnote} when in a floating environment.
+% \begin{macrocode}
+ \stepcounter{yextra}
+ \ifinfloat
+ \refstepcounter{floatnote}
+ \let\thenote\thefloatnote
+ \else
+ \refstepcounter{note}
+ \fi
+% \end{macrocode}
+% Originally we adjusted the margins according to whether we were
+% in a notes environment or not.
+% \changes{v2}{1997/11/30}{Deleted the dash after NOTE number}
+% \changes{v2}{1997/12/01}{Deleted \cs{ifinnotes} test from note environment}
+% \changes{v2}{1997/12/02}{Added \cs{ifinfloat} test}
+% \begin{macrocode}
+%% \ifinfloat \setlength{\leftmargin}{\z@} \else
+%% \setlength{\leftmargin}{2em} \fi
+ \@setnoteparams}
+ \Nfont\item[\notename~\thenote]}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \subsubsection{Examples}
+%
+% ISO Directives part 3 (2nd edition) had no rules on how to display
+% an example, but it did use examples itself; these examples were
+% displayed in a format similar to notes.
+%
+% We provided two styles of example:
+% \begin{enumerate}
+% \item isolated examples which are marked EXAMPLE - 1, EXAMPLE - 2, etc.
+% \item a local grouping of examples marked \\
+% EXAMPLES \\
+% 1 - \ldots \\
+% 2 - \ldots
+% \end{enumerate}
+%
+% The 3rd edition of the Directives does specify some options for
+% typesetting examples. A single example in a (sub) clause is
+% preceeded by the word `EXAMPLE'. If there are several examples,
+% then each is numbered (e.g., `EXAMPLE 3'). It also states that
+% all lines of an example shall be inset from the margin or set
+% in a smaller font, so that its extent can be determined.
+%
+% For now, we choose both options.
+%
+% Implementation is very similar to that for notes.
+%
+% \begin{macro}{\c@example}
+% \begin{macro}{\theexample}
+% \begin{macro}{\theHexample}
+% Define example counter. Example numbering is only continuous
+% within a (sub) clause (we used to have it continuous throughout
+% the document).
+% \changes{v2}{1997/11/30}{Reset example counter at each clause}
+% \changes{v2.4}{2002/07/22}{Added \cs{theHexample}}
+% \begin{macrocode}
+\newcounter{example}[clause]
+\renewcommand{\theexample}{\arabic{example}}
+\newcommand{\theHexample}{theexample.\arabic{yextra}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+%
+% \begin{environment}{examples}
+% Originally, this environment produces a fixed heading followed by a
+% numbered list. The environment is defined in terms of a general list.
+%
+% Use as:
+% \begin{verbatim}
+% \begin{examples}
+% \begin{example}Text of first ...\end{example}
+% \begin{example}Text of second ... \end{example}
+% \end{examples}
+% \end{verbatim}
+%
+% \changes{v2}{1997/11/30}{examples environment made into a no-op}
+% With the 3rd edition of the ISO Directives the environment has been
+% made a no-op, but is retained for compatibility.
+% The code used to be:
+% \begin{verbatim}
+% \newif\ifinexamples\inexamplesfalse
+% \newenvironment{examples}{\list{}%
+% {\leftmargin 2em
+% \itemindent 0.5em \labelwidth 0em
+% \labelsep 0.5em \listparindent 0em
+% \let\makelabel\notelabel}
+% \inexamplestrue
+% \Nfont\item[\examplesname]\mbox{}\nopagebreak[2]}%
+% {\inexamplesfalse\endlist}
+% \end{verbatim}
+% \changes{v2.3}{2001/07/06}{Deleted examples environment}
+% \end{environment}
+%
+% \begin{environment}{anexample}
+% An isolated un-numbered example.
+% \changes{v2}{1997/11/30}{Added anexample environment}
+% \begin{macrocode}
+\newenvironment{anexample}{\list{}{%
+%% \ifinfloat \setlength{\leftmargin}{\z@} \else
+%% \setlength{\leftmargin}{2em} \fi
+ \@setnoteparams}
+ \Nfont\item[\examplename]}{\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{environment}{example}
+% Like the |note| environment.
+% \changes{v2}{1997/11/30}{Deleted dash after examples number}
+% \changes{v2}{1997/12/01}{Removed \cs{ifinexamples} test in example environment}
+% \changes{v2}{1997/12/02}{Added \cs{ifinfloat} test}
+% \changes{v2.4}{2002/07/22}{Changed example environment for hyperref}
+% \begin{macrocode}
+\newenvironment{example}{\list{}{%
+ \stepcounter{yextra}
+ \refstepcounter{example}
+%% \ifinfloat \setlength{\leftmargin}{\z@} \else
+%% \setlength{\leftmargin}{2em} \fi
+ \@setnoteparams}
+ \Nfont\item[\examplename~\theexample]}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \subsubsection{Listing of references}
+%
+% ISO has three kinds of literature references, broken into two
+% categories. The categories are normative and informative
+% references. Within the normative category, references are
+% to either published or `unpublished' standards (IS or DIS
+% in ISO terminology).
+%
+% \begin{environment}{nreferences}
+%
+% The |nreferences| environment is for listing normative
+% references. It is implemented as a list.
+%
+% \begin{macro}{\nreferencelabel}
+% Labelling of normative references.
+% \begin{macrocode}
+\newcommand{\nreferencelabel}[1]{#1,\hfill}
+% \end{macrocode}
+% \end{macro}
+% Define the environment. It is used as:
+% \begin{verbatim}
+% \begin{nreferences}
+% \isref{id}{published standard title}
+% \disref{id}{unpublished standard title}
+% ....
+% \end{nreferences}
+% \end{verbatim}
+% \begin{macrocode}
+\newenvironment{nreferences}{\list{}%
+ {\leftmargin 0pt \itemindent 0.5em
+ \labelwidth\z@ \labelsep 0.5em
+ \let\makelabel\nreferencelabel}}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\isref}
+% This is a two parameter command for printing a normative reference to
+% a published standard.
+% \begin{macrocode}
+\newcommand{\isref}[2]{\item[#1]{\itshape #2}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\disref}
+% This is a two parameter command for printing a normative reference to
+% an unpublished standard. ISO requires that each unpublished standard
+% should be footnoted as `unpublished'. Awkwardly, only one footnote
+% is permitted. This means we have to fiddle with the footnote counter.
+% \changes{v2.2}{2000/01/10}{Simplified definition of \cs{disref}}
+% \begin{macro}{\ifd@is}
+% A flag to denote if there have been any previous disrefs.
+% \begin{macrocode}
+\newif\ifd@is\d@isfalse
+% \end{macrocode}
+% \end{macro}
+% Now define the |\disref| command.
+% \begin{macrocode}
+\newcommand{\disref}[2]{\begingroup
+ \ifd@is
+% \end{macrocode}
+% This is not the first call to |\disref|, so just footnotemark the entry
+% \begin{macrocode}
+ {\item[#1\protect\@footnotemark]{\itshape #2}}
+ \else
+% \end{macrocode}
+% This is the first call, so we have to make the footnote
+% \begin{macrocode}
+ \addtocounter{footnote}{1}
+ \xdef\@thefnmark{\thefootnote}
+ \item[#1\protect\@footnotemark]{\itshape #2}%
+ \footnotetext[\value{footnote}]{\tbpname}
+ \d@istrue
+ \fi
+ \endgroup\d@istrue}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{references}
+%
+% The |references| environment is for listing informative
+% references. It is implemented as a list.
+%
+% \begin{macro}{\c@infrefctr}
+% \begin{macro}{\p@infrefctr}
+% \begin{macro}{\theinfrefctr}
+% \begin{macro}{\labelinfref}
+% Informative references are labelled with a number enclosed in
+% square brackets.
+%
+% In the body of the text, a reference to an informatively
+% listed document |n| has to be printed as |[n]|. Use the
+% standard \LaTeX\ |\label| command and the|\bref| command for this.
+% \begin{macrocode}
+\newcounter{infrefctr}
+\renewcommand{\p@infrefctr}{}
+\renewcommand{\theinfrefctr}{\arabic{infrefctr}}
+\newcommand{\labelinfref}{[\arabic{infrefctr}]}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% Define the environment. It is used as:
+% \begin{verbatim}
+% \begin{references}
+% \reference{authors}{title}{publisher and date}
+% ....
+% \end{references}
+% \end{verbatim}
+% \begin{macrocode}
+\newenvironment{references}{\list{\labelinfref}{\usecounter{infrefctr}
+ \leftmargin 0pt \itemindent 0.5em
+ \labelwidth\z@ \labelsep 0.5em}}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\reference}
+% This is a three parameter command for printing an informatively
+% listed reference document. \\
+% |\reference{|\meta{authors}|}{|\meta{title}|}{|\meta{publisher and date}|}|
+% \begin{macrocode}
+\newcommand{\reference}[3]{\item {#1} {{\itshape #2}} {#3}}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Listing of definitions}
+%
+% One element of an ISO standard is the listing of definitions
+% of terms.
+%
+% \begin{environment}{olddefinitions}
+% The |olddefinitions| environment is for listing terms which
+% have been defined in some other standard. It is defined
+% in terms of the |itemize| environment.
+% \begin{macrocode}
+\newenvironment{olddefinitions}%
+ {\begin{itemize}}%
+ {\end{itemize}}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\olddefinition}
+% Within an |olddefinitions| environment each term is specified by
+% the \\
+% |\olddefinition{|\meta{phrase}|}{|\meta{supplement}|}|
+% command.
+% \begin{macrocode}
+\newcommand{\olddefinition}[2]{\item #1 #2}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{definitions}
+% Terms being defined within the current document are listed within
+% the |definitions| environment. ISO requires that each definition
+% be sequentially numbered within the clause in which it is defined.
+% This numbering is as though the definition formed a sub-clause.
+% \changes{v11}{1997/09/30}{Reimplemented definitions as clauses}
+% \changes{v2}{1997/11/30}{Reimplemented definitions}
+% \begin{macro}{\c@cl@level}
+% A counter for determing the current sectioning level.
+% \begin{macrocode}
+\newcounter{cl@level}
+% \end{macrocode}
+% \end{macro}
+% \begin{macro}{\@defcl}
+% We use this internally for the |\definition| command. A default
+% definition is suplied here as we are going to renew it, possibly
+% several times.
+% \begin{macrocode}
+\newcommand{\@defcl}[1]{}
+% \end{macrocode}
+% \end{macro}
+% Now we define the |definitions| environment.
+% \begin{macrocode}
+\newenvironment{definitions}{%
+% \end{macrocode}
+% First, set the \Lcount{cl@level} according to the sectioning
+% level within which the environment is called.
+% \begin{macrocode}
+ \setcounter{cl@level}{6}
+ \ifnum\value{sssssclause}=0 \setcounter{cl@level}{5} \fi
+ \ifnum\value{ssssclause}=0 \setcounter{cl@level}{4} \fi
+ \ifnum\value{sssclause}=0 \setcounter{cl@level}{3} \fi
+ \ifnum\value{ssclause}=0 \setcounter{cl@level}{2} \fi
+ \ifnum\value{sclause}=0 \setcounter{cl@level}{1} \fi
+ \ifnum\value{clause}=0 \setcounter{cl@level}{0} \fi
+% \end{macrocode}
+% Now redefine an appropriate (s)clause definition to get a number
+% on one line, followed by the heading on the next line
+% with a bold normal font. A new paragraph is not started after
+% the heading, and there is no entry in the ToC.
+% As this is done within the
+% group automatically set up be the environment, any original definitions
+% will get restored afterwards.
+% \begin{macrocode}
+ \ifcase\value{cl@level} % 0, NOT YET IN A CLAUSE
+ \ClassWarning{iso}{Definitions started before the initial clause}
+ \renewcommand{\@defcl}[1]{\setcounter{note}{0}\setcounter{example}{0}
+ \par
+ \addvspace{\beforecskip}
+ \@afterindentfalse
+ \refstepcounter{clause}
+ {\raggedright\bfseries \theclause\\ ##1\\}}
+% \end{macrocode}
+% Do similar things for the other cases.
+% \begin{macrocode}
+ \or % 1, called in a clause
+ \renewcommand{\@defcl}[1]{\setcounter{note}{0}\setcounter{example}{0}
+ \par
+ \addvspace{\beforescskip}
+ \@afterindentfalse
+ \refstepcounter{sclause}
+ {\raggedright\bfseries \thesclause\\ ##1\\}}
+ \or % 2, called in an sclause
+ \renewcommand{\@defcl}[1]{\setcounter{note}{0}\setcounter{example}{0}
+ \par
+ \addvspace{\beforesscskip}
+ \@afterindentfalse
+ \refstepcounter{ssclause}
+ {\raggedright\bfseries \thessclause\\ ##1\\}}
+ \or % 3, called in an ssclause
+ \renewcommand{\@defcl}[1]{\setcounter{note}{0}\setcounter{example}{0}
+ \par
+ \addvspace{\beforesscskip}
+ \@afterindentfalse
+ \refstepcounter{sssclause}
+ {\raggedright\bfseries \thesssclause\\ ##1\\}}
+ \or % 4, called in an sssclause
+ \renewcommand{\@defcl}[1]{\setcounter{note}{0}\setcounter{example}{0}
+ \par
+ \addvspace{\beforesscskip}
+ \@afterindentfalse
+ \refstepcounter{ssssclause}
+ {\raggedright\bfseries \thessssclause\\ ##1\\}}
+ \or % 5, called in an ssssclause
+ \renewcommand{\@defcl}[1]{\setcounter{note}{0}\setcounter{example}{0}
+ \par
+ \addvspace{\beforesscskip}
+ \@afterindentfalse
+ \refstepcounter{sssssclause}
+ {\raggedright\bfseries \thesssssclause\\ ##1\\}}
+ \else % 5+, called in an sssssclause or lower
+ \ClassWarning{iso}{Definitions too deeply nested}
+ \renewcommand{\@defcl}[1]{
+ \par
+ \addvspace{\beforesscskip}
+ \@afterindentfalse
+ \refstepcounter{sssssclause}
+ {\raggedright\bfseries \thesssssclause\\ ##1\\}}
+ \fi}%
+ {}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\definition}
+% Within a |definitions| environment the command
+% |\definition{|\meta{phrase}|}{|\meta{definition text}|}|
+% is used to specify and define each term. It uses the sectional heading
+% definition stored in |\@defcl| set up by the environment.
+% \begin{macrocode}
+\newcommand{\definition}[2]{\@defcl{#1} #2}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Listing of symbols and abbreviations}
+%
+% Another possible element in a standard is the listing of symbols
+% and abbreviations. This is similar to the original |definitions|
+% listing, except that terms are not treated as clauses.
+%
+% \begin{environment}{symbols}
+% \begin{macro}{\symbollabel}
+% \begin{macrocode}
+\newcommand{\symbollabel}[1]{{#1 \hfill}}
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+\newenvironment{symbols}{\list{}%
+ {\itemindent 0em \leftmargin 8em
+ \labelsep 1em \labelwidth 5em
+ \let\makelabel\symbollabel}}%
+ {\endlist}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\symboldef}
+% Within a |symbols| environment the command
+% |\symboldef{|\meta{symbol}|}{|\meta{meaning}|}|
+% is used to specify and explain each symbol or abbreviation.
+% \begin{macrocode}
+\newcommand{\symboldef}[2]{\item[#1] #2}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Listing of scope items}
+%
+% Another possible element in a standard is the listing of
+% items that are within the scope; conversely, listing
+% of items that are out of scope may also be useful.
+%
+% \begin{environment}{inscope}
+% \begin{environment}{outofscope}
+% We define synonyms for the |itemize| list environment, and
+% initiate the lists with some boilerplate. Use as, for example:
+% \begin{verbatim}
+% \begin{inscope}{international standard}
+% \item ...
+% \item ...
+% \end{inscope}
+% \end{verbatim}
+% \begin{macrocode}
+\newenvironment{inscope}[1]{%
+ \inscopename #1:
+ \begin{itemize}}%
+ {\end{itemize}}
+\newenvironment{outofscope}[1]{%
+ \outofscopename #1:
+ \begin{itemize}}%
+ {\end{itemize}}
+% \end{macrocode}
+% \end{environment}
+% \end{environment}
+%
+%
+% \subsection{Setting parameters for existing environments}
+%
+% \subsubsection{Array and tabular}
+%
+% \begin{macro}{\arraycolsep}
+% The columns in an array environment are separated by
+% 2|\arraycolsep|.
+% \begin{macrocode}
+\setlength\arraycolsep{4\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\tabcolsep}
+% The columns in an tabular environment are separated by
+% 2|\tabcolsep|.
+% \begin{macrocode}
+\setlength\tabcolsep{4\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\arrayrulewidth}
+% The width of rules in the array and tabular environments is given
+% by\\ |\arrayrulewidth|.
+% \begin{macrocode}
+\setlength\arrayrulewidth{.4\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\doublerulesep}
+% The space between adjacent rules in the array and tabular
+% environments is given by |\doublerulesep|.
+% \begin{macrocode}
+\setlength\doublerulesep{2\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Tabbing}
+%
+% \begin{macro}{\tabbingsep}
+% This controls the space that the |\'| command puts in. (See
+% \LaTeX{} manual for an explanation.)
+% \begin{macrocode}
+\setlength\tabbingsep{\labelsep}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Minipage}
+%
+% \begin{macro}{\@minipagerestore}
+% The macro |\@minipagerestore| is called upon entry to a minipage
+% environment to set up things that are to be handled differently
+% inside a minipage environment. In the current styles, it does
+% nothing.
+% \end{macro}
+%
+% \begin{macro}{\@mpfootins}
+% Minipages have their own footnotes; |\skip||\@mpfootins| plays
+% same r\^ole for footnotes in a minipage as |\skip||\footins| does
+% for ordinary footnotes.
+%
+% \begin{macrocode}
+\skip\@mpfootins = \skip\footins
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{Framed boxes}
+%
+% \begin{macro}{\fboxsep}
+% The space left by |\fbox| and |\framebox| between the box and the
+% text in it.
+% \begin{macro}{\fboxrule}
+% The width of the rules in the box made by |\fbox| and |\framebox|.
+% \begin{macrocode}
+\setlength\fboxsep{3\p@}
+\setlength\fboxrule{.4\p@}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \subsubsection{Equation and eqnarray}
+%
+% |equation| and |eqnarray| counters are not required by ISO, and
+% the equations are to be left-justified. The default is for the
+% left-hand side of equations to be flushleft.
+
+% \begin{macro}{\theequation}
+% The equation counter will be reset at beginning of a new chapter
+% and the equation number will be prefixed by the chapter number.
+%
+% This code must follow the |\chapter| definition, or more exactly
+% the definition of the chapter counter.
+% \begin{macrocode}
+\renewcommand{\theequation}{\arabic{equation}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\jot}
+% |\jot| is the extra space added between lines of an eqnarray
+% environment. The default value is used.
+% \begin{macrocode}
+% \setlength\jot{3pt}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@eqnnum}
+% The macro |\@eqnnum| defines how equation numbers are to appear in
+% equations. Again the default is used.
+%
+% \begin{macrocode}
+% \def\@eqnnum{(\theequation)}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Floating objects}
+%
+% The file \file{latex.dtx} only defines a number of tools with
+% which floating objects can be defined. This is done in the
+% document class. It needs to define the following macros for each
+% floating object of type \texttt{TYPE} (e.g., \texttt{TYPE} =
+% figure).
+%
+% \begin{description}
+% \item[\texttt{\bslash fps@TYPE}]
+% The default placement specifier for floats of type
+% \texttt{TYPE}.
+%
+% \item[\texttt{\bslash ftype@TYPE}]
+% The type number for floats of type \texttt{TYPE}. Each
+% \texttt{TYPE} has associated a unique positive \texttt
+% {TYPE} number, which is a power of two. E.g., figures might
+% have type number 1, tables type number 2, programs type
+% number 4, etc.
+%
+% \item[\texttt{\bslash ext@TYPE}]
+% The file extension indicating the file on which the contents
+% list for float type \texttt{TYPE} is stored. For example,
+% |\ext@figure| = `lof'.
+%
+% \item[\texttt{\bslash fnum@TYPE}]
+% A macro to generate the figure number for a caption. For
+% example, |\fnum@TYPE| == `Figure |\thefigure|'.
+%
+% \item[\texttt{\bslash @makecaption}{\meta{num}}{\meta{text}}]
+% A macro to make a caption, with \meta{num} the value produced
+% by |\fnum@...| and \meta{text} the text of the caption. It
+% can assume it's in a |\parbox| of the appropriate width.
+% This will be used for \emph{all} floating objects.
+%
+% \end{description}
+%
+% The actual environment that implements a floating object such as
+% a figure is defined using the macros |\@float| and |\end@float|,
+% which are defined in \file{latex.dtx}.
+%
+% An environment that implements a single column floating object is
+% started with |\@float{|\texttt{TYPE}|}[|\meta{placement}|]| of type
+% \texttt{TYPE} with \meta{placement} as the placement specifier.
+% The default value of \meta{PLACEMENT} is defined by |\fps@TYPE|.
+%
+% The environment is ended by |\end@float|. E.g., |\figure| ==
+% |\@float|{figure}, |\endfigure| == |\end@float|.
+%
+% \subsubsection{Figure}
+%
+% Here is the implementation of the figure environment.
+%
+% \begin{macro}{\c@figure}
+% First we have to allocate a counter to number the figures. In this
+% class figures are numbered sequentially.
+% \begin{macrocode}
+\newcounter{figure}
+\renewcommand{\thefigure}{\@arabic\c@figure}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\fps@figure}
+% \begin{macro}{\ftype@figure}
+% \begin{macro}{\ext@figure}
+% \begin{macro}{\fnum@figure}
+% Here are the parameters for the floating objects of type `figure'.
+% \begin{macrocode}
+\def\fps@figure{tbp}
+\def\ftype@figure{1}
+\def\ext@figure{lof}
+\def\fnum@figure{\figurename~\thefigure}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\iffigs}
+% We define a flag to tell whether the document contains any figures.
+% Elsewhere a flag, |\ifinfloat|, is defined to tell if we are in a float.
+% \begin{macrocode}
+\newif\iffigs\figsfalse
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@initisofig}
+% At the start of a |figure| environment we have to set a flag and do
+% some work to deal with the ISO requirements
+% for the ToC, and also zero the floatnote counter.
+% \changes{v2.2}{2000/01/10}{Added \cs{@initisofig} command}
+% \begin{macrocode}
+\newcommand{\@initisofig}{%
+ \iffigs\else\figstrue
+ \if@filesw \immediate\write\@mainaux{%
+ \string\gdef\string\setfigs{%
+ \string\floatlist{\listfigurename}{lof}}}
+ \fi
+ \fi
+% \end{macrocode}
+% Now deal with the possibility that the float may contain notes.
+% \begin{macrocode}
+ \infloattrue\setcounter{floatnote}{0}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{figure}
+% \begin{environment}{figure*}
+% This is the definition of the actual environment. The form with the
+% |*| is used for double column figures.
+% \begin{macrocode}
+\newenvironment{figure}{%
+ \@initisofig
+ \@float{figure}}%
+% \end{macrocode}
+% At the end of the environment we are no longer in a float.
+% \begin{macrocode}
+ {\end@float\infloatfalse}
+% \end{macrocode}
+% The starred version is similar.
+% \begin{macrocode}
+\newenvironment{figure*}{%
+ \@initisofig
+ \@dblfloat{figure}}%
+ {\end@dblfloat\infloatfalse}
+% \end{macrocode}
+% \end{environment}
+% \end{environment}
+%
+% \subsubsection{Table}
+%
+% Here is the implementation of the table environment. It is very
+% much the same as the figure environment, the additional complication
+% being that we have to flag that we are in a table, as well as
+% being in a float.
+%
+% \begin{macro}{\c@table}
+% First we have to allocate a counter to number the tables. In this
+% class tables are numbered sequentially.
+% \begin{macrocode}
+\newcounter{table}
+\renewcommand{\thetable}{\@arabic\c@table}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\fps@table}
+% \begin{macro}{\ftype@table}
+% \begin{macro}{\ext@table}
+% \begin{macro}{\fnum@table}
+% Here are the parameters for the floating objects of type `table'.
+% \begin{macrocode}
+\def\fps@table{tbp}
+\def\ftype@table{2}
+\def\ext@table{lot}
+\def\fnum@table{\tablename~\thetable}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\iftabs}
+% We define a flag to tell whether the document contains any tables.
+% Elsewhere a flag, |\ifinfloat|, is defined to tell if we are in a float.
+% \begin{macrocode}
+\newif\iftabs\tabsfalse
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@initisotab}
+% Initial code at the start of a |table| environment.
+% \changes{v2.2}{2000/01/10}{Added \cs{@initisotab} command}
+% \begin{macrocode}
+\newcommand{\@initisotab}{%
+ \iftabs\else\tabstrue
+ \if@filesw \immediate\write\@mainaux{%
+ \string\gdef\string\settabs{%
+ \string\floatlist{\listtablename}{lot}}}
+ \fi
+ \fi
+ \infloattrue\setcounter{floatnote}{0}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{table}
+% \begin{environment}{table*}
+% This is the definition of the actual environment. The form with the
+% |*| is used for double column tables.
+% \begin{macrocode}
+\newenvironment{table}{%
+ \@initisotab
+ \@float{table}}%
+ {\end@float\infloatfalse}
+% \end{macrocode}
+% The starred version is similar.
+% \begin{macrocode}
+\newenvironment{table*}{%
+ \@initisotab
+ \@dblfloat{table}}%
+ {\end@dblfloat\infloatfalse}
+% \end{macrocode}
+% \end{environment}
+% \end{environment}
+%
+% \subsubsection{A bottom float}
+%
+% We define an additional float environment. Unless something
+% additional is done, this will not be listed in the table
+% of contents.
+%
+% \begin{macro}{\c@bottomfloat}
+% \begin{macro}{\thebottomfloat}
+% First we have to allocate a counter to number the float.
+% \begin{macrocode}
+\newcounter{bottomfloat}
+\renewcommand{\thebottomfloat}{\@arabic\c@bottomfloat}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\fps@bottomfloat}
+% \begin{macro}{\ftype@bottomfloat}
+% \begin{macro}{\ext@bottomfloat}
+% \begin{macro}{\fnum@bottomfloat}
+% Here are the parameters for the floating objects of type `bottomfloat'.
+% \begin{macrocode}
+\def\fps@bottomfloat{b}
+\def\ftype@bottomfloat{4}
+\def\ext@bottomfloat{lbf}
+\def\fnum@bottomfloat{\thebottomfloat}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{environment}{bottomfloat}
+% \begin{environment}{bottomfloat*}
+% This is the definition of the actual environment. The form with the
+% |*| is used for double column floats.
+% \begin{macrocode}
+\newenvironment{bottomfloat}%
+ {\@float{bottomfloat}}%
+ {\end@float}
+\newenvironment{bottomfloat*}%
+ {\@dblfloat{bottomfloat}}%
+ {\end@dblfloat}
+% \end{macrocode}
+% \end{environment}
+% \end{environment}
+%
+%
+% \subsubsection{Captions}
+%
+% \begin{macro}{\@makecaption}
+% The |\caption| command calls |\@makecaption| to format the
+% caption of floating objects. It gets two arguments,
+% \meta{number}, the number of the floating object and \meta{text},
+% the text of the caption. Usually \meta{number} contains a string
+% such as `Figure 3.2'. The macro can assume it is called inside a
+% |\parbox| of right width, with |\normalsize|.
+%
+% \begin{macro}{\abovecaptionskip}
+% \begin{macro}{\belowcaptionskip}
+% These lengths contain the amount of white space to leave above
+% and below the caption.
+% \begin{macrocode}
+\newlength\abovecaptionskip
+\newlength\belowcaptionskip
+\setlength\abovecaptionskip{10\p@}
+\setlength\belowcaptionskip{10\p@}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% The definition of this macro is |\long| in order to allow more
+% then one paragraph in a caption.
+% \begin{macrocode}
+\long\def\@makecaption#1#2{%
+ \vskip\abovecaptionskip
+% \end{macrocode}
+% We want to see if the caption fits on one line on the page,
+% therefore we first typeset it in a temporary box.
+% \begin{macrocode}
+ \sbox\@tempboxa{{\captionsize\bfseries #1 -- #2}}%
+% \end{macrocode}
+% We can the measure its width. It that is larger than the current
+% |\hsize| we typeset the caption as a centered paragraph.
+% \begin{macrocode}
+ \ifdim \wd\@tempboxa >\hsize
+ {\centering {\captionsize\bfseries #1 -- #2}\par}
+% \end{macrocode}
+% If the caption fits, we center it. Because this uses an |\hbox|
+% directly in vertical mode, it does not execute the |\everypar|
+% tokens; the only thing that could be needed here is resetting the
+% `minipage flag' so we do this explicitly.
+% \begin{macrocode}
+ \else
+ \global \@minipagefalse
+ \hbox to\hsize{\hfil\box\@tempboxa\hfil}%
+ \fi
+ \vskip\belowcaptionskip}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\contcaption}
+% The |\contcaption| command can be used to put a `continuation'
+% caption into a float. It neither increments the float number
+% nor makes any entry in the toc listings.
+%
+% It is called as
+% |\contcaption{|\meta{continued/concluded}|}{|\meta{optional text}|}|
+% \begin{macrocode}
+\newcommand{\contcaption}{\@contcaption\@captype}
+% \end{macrocode}
+% \begin{macro}{\@contcaption}
+% This does the work for us.
+% \begin{macrocode}
+\long\def\@contcaption#1#2{%
+ \begingroup
+ \@parboxrestore
+ \normalsize
+ \@makecaption{\csname fnum@#1\endcsname}{\ignorespaces #2}\par
+ \endgroup}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \subsection{Font changing}
+%
+% Here we supply the declarative font changing commands that were
+% common in \LaTeX\ version 2.09 and earlier. These commands work
+% in text mode \emph{and} in math mode. They are provided for
+% compatibility, but one should start using the |\text...| and
+% |\math...| commands instead. These commands are defined using
+% |\DeclareTextFontCommand|, a command with three arguments: the
+% user command to be defined; \LaTeX\ commands to execute in text
+% mode and \LaTeX\ commands to execute in math mode.
+%
+% \begin{macro}{\rm}
+% \begin{macro}{\tt}
+% \begin{macro}{\sf}
+%
+% The commands to change the family. When in compatibility mode we
+% select the `default' font first, to get \LaTeX2.09 behviour.
+% \begin{macrocode}
+\DeclareOldFontCommand{\rm}{\normalfont\rmfamily}{\mathrm}
+\DeclareOldFontCommand{\sf}{\normalfont\sffamily}{\mathsf}
+\DeclareOldFontCommand{\tt}{\normalfont\ttfamily}{\mathtt}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\bf}
+% The command to change to the bold series. One should use
+% |\mdseries| to explicitly switch back to medium series.
+% \begin{macrocode}
+\DeclareOldFontCommand{\bf}{\normalfont\bfseries}{\mathbf}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\sl}
+% \begin{macro}{\it}
+% \begin{macro}{\sc}
+%
+% And the commands to change the shape of the font. The slanted and
+% small caps shapes are not available by default as math alphabets,
+% so those changes do nothing in math mode. However, we do warn the
+% user that the selection will not have any effect.One should use
+% |\upshape| to explicitly change back to the upright shape.
+% \begin{macrocode}
+\DeclareOldFontCommand{\it}{\normalfont\itshape}{\mathit}
+\DeclareOldFontCommand{\sl}{\normalfont\slshape}{\@nomath\sl}
+\DeclareOldFontCommand{\sc}{\normalfont\scshape}{\@nomath\sc}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\cal}
+% \begin{macro}{\mit}
+%
+% The commands |\cal| and |\mit| should only be used in math mode,
+% outside math mode they have no effect. Currently the New Font
+% Selection Scheme defines these commands to generate warning
+% messages. Therefore we have to define them `by hand'.
+% \begin{macrocode}
+\DeclareRobustCommand*{\cal}{\@fontswitch{\relax}{\mathcal}}
+\DeclareRobustCommand*{\mit}{\@fontswitch{\relax}{\mathnormal}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{Urls, etc}
+%
+% \changes{v2.1}{1999/02/15}{Added the isourl command}
+% ISO uses its own format for typesetting urls. This is implemented here
+% via the \file{url} package.
+% \begin{macro}{\url}
+% \begin{macro}{\isourl}
+% The |\url{|\meta{text}|}| command is provided by the \file{url} package.
+% It may be used for typesetting email addresses. The
+% |\isourl{|\meta{text}|}| command typesets \meta{text} in the format
+% required by ISO for an url; that is, the address is underlined and enclosed
+% within (not-underlined) angle brackets.
+%
+% NOTE: The underlining prohibits linebreaking in the url. I also tried
+% the \file{ulem} package's |\uline| command, but this also prevented any
+% linebreaking, so we might as well stick to the \TeX{} |\underline|.
+% \changes{v2.3}{2002/01/10}{Removed underline from \cs{isourl}}
+% \begin{macrocode}
+%%\newcommand{\isourl}[1]{\texttt{<}\underline{\url{#1}}\texttt{>}}
+\newcommand{\isourl}[1]{\texttt{<}\url{#1}\texttt{>}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+%
+% \section{Cross Referencing} \label{sec:xref}
+%
+% \subsection{Label referencing}
+%
+% \begin{macro}{\aref}
+% \begin{macro}{\bref}
+% \begin{macro}{\cref}
+% \begin{macro}{\eref}
+% \begin{macro}{\fref}
+% \begin{macro}{\nref}
+% \begin{macro}{\tref}
+% \begin{macro}{\pref}
+% Named references to labeled elements. |\bref{|\meta{label id}|}| is
+% a reference to a labeled informative bibliographic element (similar
+% to the standard \LaTeX\ |\cite| command. The others are to named
+% elements of the document.
+% \changes{v2.3}{2001/07/06}{Added \cs{pref}}
+% \begin{macrocode}
+\newcommand{\aref}[1]{\annexrefname~\ref{#1}}
+\newcommand{\bref}[1]{[\ref{#1}]}
+\newcommand{\cref}[1]{\clauserefname~\ref{#1}}
+\newcommand{\eref}[1]{\examplerefname~\ref{#1}}
+\newcommand{\fref}[1]{\figurerefname~\ref{#1}}
+\newcommand{\nref}[1]{\noterefname~\ref{#1}}
+\newcommand{\tref}[1]{\tablerefname~\ref{#1}}
+\newcommand{\pref}[1]{\pagerefname~\pageref{#1}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{Table of Contents, etc.}
+%
+% A |\section| command writes a
+% |\contentsline{section}{|\meta{title}|}{|\meta{page}|}| command
+% on the \file{.toc} file, where \meta{title} contains the
+% contents of the entry and \meta{page} is the page number. If
+% sections are being numbered, then \meta{title} will be of the
+% form |\numberline{|\meta{num}|}{|\meta{heading}|}| where
+% \meta{num} is the number produced by |\thesection|. Other
+% sectioning commands work similarly.
+%
+% A |\caption| command in a `figure' environment writes
+%
+% |\contentsline{figure}{\numberline{|\meta{num}|}{|%
+% \meta{caption}|}}{|\meta{page}|}|
+%
+% on the .\file{lof} file, where \meta{num} is the number produced
+% by |\thefigure| and \meta{caption} is the figure caption. It
+% works similarly for a `table' environment.
+%
+% The command |\contentsline{|\meta{name}|}| expands to
+% |\l@|\meta{name}. So, to specify the table of contents, we must
+% define |\l@chapter|, |\l@section|, |\l@subsection|, ... ; to
+% specify the list of figures, we must define |\l@figure|; and so
+% on. Most of these can be defined with the |\@dottedtocline|
+% command, which works as follows.
+%
+% |\@dottedtocline{|\meta{level}|}{|\meta{indent}|}{|^^A
+% \meta{numwidth}|}{|^^A
+% \meta{title}|}{|\meta{page}|}|
+%
+% \begin{description}
+% \item[\meta{level}] An entry is produced only if\meta{ level}
+% $<=$ value of the \Lcount{tocdepth} counter. Note,
+% |\chapter| is level 0, |\section| is level 1, etc.
+% \item[\meta{indent}] The indentation from the outer left margin
+% of the start of the contents line.
+% \item[\meta{numwidth}] The width of a box in which the section
+% number is to go, if \meta{title} includes a |\numberline|
+% command.
+% \end{description}
+%
+% \begin{macro}{\@pnumwidth}
+% \begin{macro}{\@tocrmarg}
+% \begin{macro}{\@dotsep}
+% This command uses the following three parameters, which are set
+% with a |\newcommand| (so em's can be used to make them depend upon
+% the font).
+% \begin{description}
+% \item[\texttt{\bslash @pnumwidth}] The width of a box in which the
+% page number is put.
+% \item[\texttt{\bslash @tocrmarg}] The right margin for multiple
+% line entries. One wants |\@tocrmarg| $\ge$ |\@pnumwidth|
+% \item[\texttt{\bslash @dotsep}] Separation between dots, in mu
+% units. Should be defined as a number like 2 or 1.7
+% \end{description}
+%
+% \begin{macrocode}
+\newcommand{\@pnumwidth}{1.55em}
+\newcommand{\@tocrmarg} {2.55em}
+\newcommand{\@dotsep}{4.5}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\tocentryskip}
+% \begin{macro}{\tocbaseline}
+% \begin{macro}{\tocskip}
+% We define two lengths and a utility command.
+% \begin{macrocode}
+\newlength{\tocentryskip} \setlength{\tocentryskip}{1em}
+\newlength{\tocbaseline} \setlength{\tocbaseline}{20pt}
+\newcommand{\tocskip}[1]{%
+ \addtocontents{toc}{\protect\vspace{#1}}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsubsection{Table of Contents}
+%
+% \begin{macro}{\tableofcontents}
+% This macro is used to request that \LaTeX{} produces a table of
+% contents. In this class the tables of
+% contents, figures etc. are always set in single-column style.
+%
+% \changes{v1}{1995/05/31}{Added `page' above page numbers in
+% table of contents.}
+% \changes{v2.3}{2001/07/06}{copyright at foot of page ii, not ToC}
+% \begin{macrocode}
+\newcommand{\tableofcontents}{%
+ \if@twocolumn
+ \@restonecoltrue\onecolumn
+ \else
+ \@restonecolfalse
+ \fi
+% \end{macrocode}
+% If the document is copyrighted, then the copyright notice is
+% placed at the foot of page ii.
+% \begin{macrocode}
+%%% \setcounter{page}{2}
+%%% \thispagestyle{startpage}
+%%% \mbox{}
+%%% \ifc@pyright\@copyrighttext\fi
+% \end{macrocode}
+% Set the title for the toc, which must start on page (iii) of the
+% document. The actual table of contents is made by calling
+% |\@starttoc{toc}|.
+% \begin{macrocode}
+%%% \cleardoublepage
+ \setcounter{page}{3}
+ \pagestyle{headings}
+ \hbox to \textwidth{{\Cfont \contentsname}\hfil\pagename}
+% \end{macrocode}
+% Add a locator for a bookmark.
+% \changes{v2.4}{2002/07/22}{Added bookmark to \cs{tableofcontents}}
+% \begin{macrocode}
+ \ifisohyper
+ \pdfbookmark[1]{\contentsname}{isotoc}%
+ \fi
+ \begingroup
+ \parskip\z@
+ \@starttoc{toc}
+ \endgroup
+% \end{macrocode}
+% Finish by restoring two column mode if necessary.
+% \begin{macrocode}
+ \if@restonecol\twocolumn\fi}
+% \end{macrocode}
+% \end{macro}
+% \begin{macrocode}
+% \end{macrocode}
+%
+% Each sectioning command needs an additional macro to format its
+% entry in the table of contents, as described above. In this class
+% the formatting depends on whether or not the |sect| option
+% is used.
+% \begin{macro}{\l@clause}
+% \begin{macro}{\l@sclause}
+% \begin{macro}{\l@ssclause}
+% \begin{macro}{\l@sssclause}
+% \begin{macro}{\l@ssssclause}
+% \begin{macro}{\l@sssssclause}
+% \begin{macro}{\l@annex}
+% First the default specifications.
+% \begin{macrocode}
+\newcommand{\l@clause}{\@dottedtocline{1}{0em}{2.3em}}
+\newcommand{\l@sclause}{\@dottedtocline{2}{1.5em}{3.2em}}
+\newcommand{\l@ssclause}{\@dottedtocline{3}{3em}{4.1em}}
+\newcommand{\l@sssclause}{\@dottedtocline{4}{4.5em}{5em}}
+\newcommand{\l@ssssclause}{\@dottedtocline{5}{6em}{5.9em}}
+\newcommand{\l@sssssclause}{\@dottedtocline{6}{7.5em}{6.8em}}
+\newcommand{\l@annex}{\@dottedtocline{1}{0em}{11.0em}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% In this class lists of floats are made to appear as though they
+% were an integral part of the table of contents. Further, headings
+% are only printed if there is at least one float of the given kind
+% in the body of the document.
+%
+% \begin{macro}{\floatlist}
+% For print a heading for a list of floats.
+% \changes{v2}{1997/12/04}{Doubled beforeskip in ToC}
+% \changes{v2}{1997/12/04}{Added \cs{nopagebreak} after heading text}
+% \begin{macrocode}
+\newcommand{\floatlist}[2]{%
+ \vspace{2\tocentryskip}
+ \hbox to \textwidth{\bfseries #1\hfil}
+ \vspace*{\tocentryskip}
+ \nopagebreak
+ \begingroup
+ \parskip\z@
+ \@starttoc{#2}
+ \endgroup}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{List of figures}
+%
+%
+% \begin{macro}{\iffigs}
+% A flag for figure floats.
+% \begin{macrocode}
+\newif\iffigs\figsfalse
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\listoffigures}
+% This macro is used to request that \LaTeX{} produces a list of
+% figures.
+%
+% \begin{macrocode}
+\newcommand{\listoffigures}{%
+ \ifx\undefined\setfigs\else\setfigs\fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\loftnumberline}
+% Used to add a dash after a figure/table number in the listing.
+% \changes{v2.3}{2001/07/06}{Added \cs{loftnumberline}}
+% \begin{macrocode}
+\newcommand{\loftnumberline}[1]{#1 --- }
+
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\l@figure}
+% This macro produces an entry in the list of figures.
+% Note that \verb*?Figure M.999 ? is 6.15em.
+% \changes{v11}{1997/11/24}{Increased ToC figure number space from 2.3em to 3.0em (caters for M.999)}
+% \changes{v2.3}{2001/07/06}{Increased ToC fignum space to 7.5em to cater for name}
+% \begin{macrocode}
+\newcommand{\l@figure}{\@dottedtocline{1}{0em}{7.5em}}
+% \end{macrocode}
+%
+% \begin{macrocode}
+\renewcommand{\l@figure}[2]{%
+ \vskip \z@ \@plus.2\p@
+ {%
+ \leftskip 0em
+ \rightskip \@tocrmarg
+ \parfillskip -\rightskip
+ \parindent 0em\@afterindenttrue
+ \interlinepenalty\@M
+ \leavevmode
+ \@tempdima 3.15em
+ \advance\leftskip \@tempdima \null\nobreak\hskip -\leftskip
+ {\let\numberline\loftnumberline \normalfont\figurename{} #1}\nobreak
+ \loftfillnum{#2}}
+}
+
+\newcommand{\loftfillnum}[1]{\normalfont%
+ {\leaders\hbox{$\m@th\mkern 4.5mu\hbox{.}\mkern 4.5mu$}\hfill}\nobreak
+ \hb@xt@\@pnumwidth{\hfil #1}\par}
+
+
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{List of tables}
+%
+% \begin{macro}{\iftabs}
+% A flag for table floats.
+% \begin{macrocode}
+\newif\iftabs\tabsfalse
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\listoftables}
+% This macro is used to request that \LaTeX{} produces a list of
+% tables. It is very similar to |\listoffigures|. Note that
+% \verb*?Table M.999 ? is 5.75em.
+%
+% \begin{macrocode}
+\newcommand{\listoftables}{%
+ \ifx\undefined\settabs\else\settabs\fi}
+% \end{macrocode}
+%
+% \begin{macro}{\l@table}
+% This macro produces an entry in the list of tables.
+% \changes{v2.3}{2001/07/06}{Defined \cs{l@table} as a macro}
+% \begin{macrocode}
+\newcommand{\l@table}{\@dottedtocline{1}{0em}{6.5em}}
+
+\renewcommand{\l@table}[2]{%
+ \vskip \z@ \@plus.2\p@
+ {%
+ \leftskip 0em
+ \rightskip \@tocrmarg
+ \parfillskip -\rightskip
+ \parindent 0em\@afterindenttrue
+ \interlinepenalty\@M
+ \leavevmode
+ \@tempdima 2.75em
+ \advance\leftskip \@tempdima \null\nobreak\hskip -\leftskip
+ {\let\numberline\loftnumberline \normalfont\tablename{} #1}\nobreak
+ \loftfillnum{#2}}
+}
+
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\@caption}
+% This is a reimplementation of the kernel |\@caption| macro (ltfloat.dtx)
+% to cater for the peculiarity of putting the float name before the number in
+% the List of\ldots
+% \changes{v2.3}{2001/07/06}{Redefined the \cs{@caption} kernel macro}
+% \begin{macrocode}
+\long\def\@isocaption#1[#2]#3{%
+ \par
+ \addcontentsline{\csname ext@#1\endcsname}{#1}%
+ {\protect\numberline{{\@nameuse{#1name}} {\@nameuse{the#1}} --- }%
+ {\ignorespaces #2}}%
+ \begingroup
+ \@parboxrestore
+ \if@minipage
+ \@setminipage
+ \fi
+ \normalsize
+ \@makecaption{\csname fnum@#1\endcsname}{\ignorespaces #3}\par
+ \endgroup}
+
+% \end{macrocode}
+% \end{macro}
+%
+% \subsubsection{ToC and clause numbering}
+%
+% Commands are provided, based on the \Lpack{tocvsec2} package, for changing
+% the section numbering level and the ToC entry level.
+% \changes{v2.2}{2000/01/10}{Added tocvsec2-like commands}
+%
+% \begin{macro}{\if@knownclause}
+% \begin{macro}{\@setclcnt}
+% Helper macro to set a sectioning-related counter. Use as
+% |\@setclcnt{|\meta{sec}|}{|\meta{counter}|}| to set \Lcount{counter}
+% to the level of \meta{sec}.
+% \begin{macrocode}
+\newif\if@knownclause
+\newcommand{\@setclcnt}[2]{
+ \@knownclausefalse
+ \if\isostringsequal{#1}{none}
+ \setcounter{#2}{-10}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{clause}
+ \setcounter{#2}{1}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{sclause}
+ \setcounter{#2}{2}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{ssclause}
+ \setcounter{#2}{3}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{sssclause}
+ \setcounter{#2}{4}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{ssssclause}
+ \setcounter{#2}{5}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{sssssclause}
+ \setcounter{#2}{6}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{all}
+ \setcounter{#2}{50}
+ \@knownclausetrue
+ \fi
+ \if@knownclause\else
+ \ClassError{isov2}{%
+ Unknown clause command name (#1)
+ }{%
+ I'll ignore it. Type \space <return> and I'll continue.\MessageBreak
+ If you haven't mistyped the name then use \protect\setcounter\space instead.}
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\settocdepth}
+% |\settocdepth{|\meta{sec}|}| is the user command for setting
+% \Lcount{tocdepth} in the \file{.toc} file to the value corresponding to
+% \meta{sec}. It can only be used after the preamble.
+% \begin{macrocode}
+\newcommand{\settocdepth}[1]{%
+ \@knownclausefalse
+ \if\isostringsequal{#1}{none}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{-10}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{clause}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{1}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{sclause}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{2}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{ssclause}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{3}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{sssclause}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{4}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{ssssclause}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{5}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{sssssclause}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{6}}
+ \@knownclausetrue
+ \fi
+ \if\isostringsequal{#1}{all}
+ \addtocontents{toc}{\protect\setcounter{tocdepth}{50}}
+ \@knownclausetrue
+ \fi
+ \if@knownclause\else
+ \ClassError{isov2}{%
+ Unknown clause command name (#1)
+ }{%
+ I'll ignore it. Type \space <return> and I'll continue.}
+ \fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\maxtocdepth}
+% |\maxtocdepth{|\meta{sec}|}| can be used to initialise \Lcount{tocdepth}
+% to the value corresponding to \meta{sec}. This can only be used
+% between the end of the preamble and the |\tableofcontents| command.
+% \begin{macrocode}
+\newcommand{\maxtocdepth}[1]{%
+ \@setclcnt{#1}{tocdepth}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\setsecnumdepth}
+% |\setsecnumdepth{|\meta{sec}|}| is the user command for setting
+% \Lcount{secnumdepth} to the value for \meta{sec}. It can only be used after
+% the preamble.
+% \begin{macrocode}
+\newcommand{\setsecnumdepth}[1]{\leavevmode%
+ \@setclcnt{#1}{secnumdepth}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\maxsecnumdepth}
+% |\maxsecnumdepth{|\meta{sec}|}| can be used to initialise
+% \Lcount{secnumdepth}
+% after the preamble to the value corresponding to \meta{sec}.
+% \begin{macrocode}
+\newcommand{\maxsecnumdepth}[1]{%
+ \@setclcnt{#1}{secnumdepth}
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+%
+% \subsection{Bibliography}
+%
+% This class does not implement a bibliography. The |references|
+% environment is defined instead.
+%
+% \subsection{The index}
+%
+% \begin{environment}{theindex}
+% \changes{v2.2}{2000/01/10}{Reconfigured theindex to use \cs{fibicl@use}}
+% The environment `theindex' can be used for indices. It makes an
+% index with one column, with each entry a separate paragraph. At
+% the user level the commands |\item|, |\subitem| and |\subsubitem|
+% are used to produce index entries of various levels. When a new
+% letter of the alphabet is encountered an amount of |\indexspace|
+% white space can be added.
+%
+% ISO requires that an index, if present, must be the last element
+% in the document.
+%
+%
+% \begin{macrocode}
+\newenvironment{theindex}%
+ {\clearpage
+ \typeout{Index}%
+ \refstepcounter{clause}%
+ \tocskip{\tocentryskip}%
+ \addcontentsline{toc}{index}{\indexname}%
+ \columnseprule \z@
+ \onecolumn{\fibicl@use*{\indexname}}
+ \parindent\z@
+ \parskip\z@ \@plus .3\p@\relax
+ \let\item\@idxitem}%
+ {\clearpage}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\l@index}
+% Format the index entry in the table of contents.
+% \begin{macrocode}
+\newcommand{\l@index}{\@dottedtocline{1}{0em}{0pt}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@idxitem}
+% \begin{macro}{\subitem}
+% \begin{macro}{\subsubitem}
+% Thsee macros are used to format the entries in the index.
+% \begin{macrocode}
+\newcommand{\@idxitem} {\par\hangindent 40\p@}
+\newcommand{\subitem} {\par\hangindent 40\p@ \hspace*{20\p@}}
+\newcommand{\subsubitem}{\par\hangindent 40\p@ \hspace*{30\p@}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\indexspace}
+% The amount of white space that is inserted between `letter
+% blocks' in the index.
+% \begin{macrocode}
+\newcommand{\indexspace}{\par \vskip 10\p@ \@plus5\p@ \@minus3\p@\relax}
+% \end{macrocode}
+% \end{macro}
+%
+% The program GenIndex, written for processing ISO documents,
+% takes an \file{.idx} file and converts it to a |theindex| format.
+% The following are the formatting commands output by GenIndex.
+%
+% \begin{macro}{\indexfill}
+% \begin{macro}{\sindexfill}
+% \begin{macro}{\ssindexfill}
+% Thse define the format of leaders between the (sub-) topic and
+% the page number. ISO requires a dotted line between each index
+% entry and the page number.
+% \begin{macrocode}
+\newcommand{\indexfill}{\dotfill}
+\newcommand{\sindexfill}{\dotfill}
+\newcommand{\ssindexfill}{\dotfill}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\indexsee}
+% \begin{macro}{\indexseealso}
+% These format entries of type `see \ldots' and `see also \ldots'.
+% \begin{macrocode}
+\newcommand{\indexsee}[1]{\par \hspace*{2em} \emph{see} #1}
+\newcommand{\indexseealso}[1]{\par \hspace*{2em} \emph{see also} #1}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\alphaindexspace}
+% \begin{macro}{\otherindexspace}
+% These format the space between each alphabetic block of entries,
+% and correspondingly for entries that begin with an analpahbetic
+% character. ISO requires no additional spacing.
+%
+% These commands take one parameter, intended to be the
+% (letter) heading for the next block of entries. For example,
+% we could have defined:
+% \begin{verbatim}
+% \newcommand{\alphaindexspace}[1]{\indexspace
+% {\bfseries #1}}
+% \end{verbatim}
+% for printing a vertical space and a bold heading.
+% \begin{macrocode}
+\newcommand{\alphaindexspace}[1]{}
+\newcommand{\otherindexspace}[1]{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% For good measure we provide a style file for users of the
+% {\sc makeindex} program.
+%
+% \begin{macrocode}
+%</iso>
+%<*ist>
+ %%%%iso.ist Makeindex style file for ISO documents
+group_skip "\n\n" % no vertical space between blocks
+headings_flag 0 % make sure headings are turned off
+delim_0 " \\dotfill " % dot leaders between entry and page numbers
+delim_1 " \\dotfill "
+delim_2 " \\dotfill "
+
+%</ist>
+%<*iso>
+% \end{macrocode}
+%
+% \subsection{Footnotes}
+%
+% \begin{macro}{\footnoterule}
+% Usually, footnotes are separated from the main body of the text
+% by a small rule. This rule is drawn by the macro |\footnoterule|.
+% We have to make sure that the rule takes no vertical space (see
+% \file{plain.tex}) so we compensate for the natural heigth of the
+% rule of 0.4pt by adding the right amount of vertical skip.
+%
+% To prevent the rule from colliding with the footnote we first add
+% a little negative vertical skip, then we put the rule and make
+% sure we end up at the same point where we begun this operation.
+% \begin{macrocode}
+\renewcommand{\footnoterule}{%
+ \kern-3\p@
+ \hrule width .4\columnwidth
+ \kern 2.6\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\c@footnote}
+% Footnotes are numbered sequentially throughout the document.
+% ISO requires footnotes to be a superscripted arabic numeral
+% with a right parenthesis. The counter is predefined.
+% \begin{macrocode}
+% \newcounter{footnote}
+\renewcommand{\thefootnote}{\arabic{footnote})}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@makefntext}
+% The footnote mechanism of \LaTeX{} calls the macro |\@makefntext|
+% to produce the actual footnote. The macro gets the text of the
+% footnote as its argument and should use |\@thefnmark| as the mark
+% of the footnote. The macro |\@makefntext|is called when
+% effectively inside a |\parbox| of width |\columnwidth| (i.e.,
+% with |\hsize| = |\columnwidth|).
+%
+% An example of what can be achieved is given by the following piece
+% of \TeX\ code.
+% \begin{verbatim}
+% \long\def\@makefntext#1{%
+% \@setpar{\@@par
+% \@tempdima = \hsize
+% \advance\@tempdima-10pt
+% \parshape \@ne 10pt \@tempdima}%
+% \par
+% \parindent 1em\noindent
+% \hbox to \z@{\hss\@makefnmark}#1}
+% \end{verbatim}
+% The effect of this definition is that all lines of the footnote
+% are indented by 10pt, while the first line of a new paragraph is
+% indented by 1em. To change these dimensions, just substitute the
+% desired value for `10pt' (in both places) or `1em'. The mark is
+% flushright against the footnote.
+%
+% In this document class we use a simpler macro, in which the
+% footnote text is set like an ordinary text paragraph, with no
+% indentation except on the first line of a paragraph, and the
+% first line of the footnote. Thus, all the macro must do is set
+% |\parindent| to the appropriate value for succeeding paragraphs
+% and put the proper indentation before the mark.
+%
+%
+% \begin{macrocode}
+\long\def\@makefntext#1{%
+ \parindent 1em%
+ \noindent
+ \hbox to 1.8em{\hss\@makefnmark}#1}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\@makefnmark}
+% The footnote markers that are printed in the text to point to the
+% footnotes should be produced by the macro |\@makefnmark|. We use
+% the default definition for it.
+% \begin{macrocode}
+%\def\@makefnmark{\hbox{$^{\@thefnmark}\m@th$}}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \section{Version control tools} \label{sec:vct}
+%
+% When preparing an international standard the document goes through
+% several iterations. In particular it may change due to international
+% ballot comments. The commands provided may be used to identify
+% changes made to a document during its life cycle.
+%
+% \subsection{Print control}
+%
+% Members of the development group often need to see the changes
+% between document versions, while the general public does not.
+% \begin{macro}{\ifchangemarks}
+% This controls the appearence of the version controls defined
+% below.
+% \begin{macrocode}
+\newif\ifchangemarks\changemarksfalse
+% \end{macrocode}
+% The version controls only work properly when the |draft| option
+% is in effect. Also, the command |\changemarkstrue| must be
+% put in the document preamble.
+% \end{macro}
+%
+% \begin{macro}{\v@rid}
+% This acts as an alias for |\marginpar| when both |changemarks| is
+% true and the |draft| option is in effect, otherwise it throws
+% away its two arguments.
+% \begin{macrocode}
+\newcommand{\v@rid}[2]{%
+ \ifchangemarks
+ \ifdr@ftd@c
+ \marginpar[#1]{#2}
+ \fi\fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Change marking}
+%
+% The following commands flag changes in the typeset document. Each of
+% the commands takes one parameter which is intended to be a
+% `change number' for tracking purposes. Some also take a text
+% parameter which is the changed text.
+%
+% \begin{macro}{\editorial}
+% |\editorial{|\meta{change id}|}|
+% Places the \meta{change id} in the document to indicate an editorial
+% change.
+% \begin{macrocode}
+\newcommand{\editorial}[1]{%
+ \ifchangemarks
+ \v@rid{\small\hfill$^{#1}$ED}%
+ {\small ED$^{#1}$\hfill}
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\added}
+% |\added{|\meta{text}|}{|\meta{change id}|}|
+% Flags the additional \meta{text} with the \meta{change id}.
+% \begin{macrocode}
+\long\def\added#1#2{%
+ \ifchangemarks
+ \v@rid{\small\hfill$^{#2}\Rightarrow$}%
+ {\small $\Leftarrow^{#2}$\hfill}
+ \emph{#1}
+ \else
+ #1
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\deleted}
+% |\deleted{|\meta{change id}|}|
+% Places the \meta{change id} in the document to indicate that
+% some text has been deleted.
+% \begin{macrocode}
+\newcommand{\deleted}[1]{%
+ \ifchangemarks
+ \v@rid{\small\hfill$^{#1}\Leftarrow$}%
+ {\small $\Rightarrow^{#1}$\hfill}
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\moved}
+% |\moved{|\meta{text}|}{|\meta{change id}|}|
+% Flags the moved \meta{text} with the \meta{change id}.
+% \begin{macrocode}
+\long\def\moved#1#2{%
+ \ifchangemarks
+ \v@rid{\small\hfill$^{#2}\Leftrightarrow$}%
+ {\small $\Leftrightarrow^{#2}$\hfill}
+ \emph{#1}
+ \else
+ #1
+ \fi}
+% \end{macrocode}
+% \end{macro}
+%
+% \section{Structure and boilerplate} \label{sec:bp}
+%
+% ISO standard documents have certain required elements and boilerplate.
+%
+% \subsection{Structural elements}
+%
+% \begin{environment}{foreword}
+% The |foreword| environment initializes the front matter for a standard
+% and starts an unnumbered foreword clause. To ensure that the
+% front matter is set in single column we use an environment.
+% \changes{v2}{1997/12/04}{Added Foreword to ToC}
+% \changes{v2.1}{1999/02/15}{Deleted Foreword from ToC}
+% \changes{v2.2}{2000/01/10}{Reconfigured Foreword to use \cs{fibicl@use}}
+% \changes{v2.4}{2002/07/22}{Added bookmark to the foreword}
+% \begin{macrocode}
+\newenvironment{foreword}%
+ {\tableofcontents
+ \listoffigures
+ \listoftables
+ \clearpage
+ \if@twocolumn
+ \@restonecoltrue\onecolumn
+ \else
+ \@restonecolfalse
+ \fi
+ \fibicl@use*{\forewordname}%
+%% \tocskip{\tocentryskip}%
+%% \addcontentsline{toc}{clause}{\forewordname}%
+ \ifisohyper
+ \pdfbookmark[1]{\forewordname}{isofwd}%
+ \fi}%
+ {\if@restonecol\twocolumn\fi}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\@copyrighttext}
+% This command sets up the copyright notice on the first page of
+% the table of contents. The text is set in a |bottomfloat|
+% environment in a small size.
+% \begin{macrocode}
+\newcommand{\@copyrighttext}{%
+ \vfill
+%%% \begin{bottomfloat}[b]
+ \begin{small}
+ \copyrightnotice
+ \end{small}
+%%% \end{bottomfloat}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{environment}{introduction}
+% Starts a new unnumbered introduction clause, the body of which is set
+% in single column, so we use an environment.
+% \changes{v2}{1997/12/04}{Added Introduction to ToC}
+% \changes{v2.1}{1999/02/15}{Deleted Introduction from Toc}
+% \changes{v2.2}{2000/01/10}{Changed introduction to use \cs{fibicl@use}}
+% \changes{v2.4}{2002/07/22}{Added bookmark to introduction}
+% \begin{macrocode}
+\newenvironment{introduction}%
+ {\clearpage
+ \if@twocolumn
+ \@restonecoltrue\onecolumn
+ \else
+ \@restonecolfalse
+ \fi
+ \fibicl@use*{\introductionname}%
+%% \tocskip{\tocentryskip}
+%% \addcontentsline{toc}{clause}{\introductionname}%
+ \ifisohyper
+ \pdfbookmark[1]{\introductionname}{isointro}
+ \fi}%
+ {\if@restonecol\twocolumn\fi}
+% \end{macrocode}
+% \end{environment}
+%
+% \begin{macro}{\scopeclause}
+% Starts a new numbered scope clause.
+% This is given the label |;i1| as it is the first numbered clause.
+% \changes{v2.2}{2000/01/10}{Scope clause labelled ;i1}
+% \begin{macrocode}
+\newcommand{\scopeclause}{\clause{\scopename}\label{;i1}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\normrefsclause}
+% Starts a new numbered normative references clause.
+% This is given the label |;i2| as it is the second numbered clause.
+% \changes{v2.2}{2000/01/10}{Normrefs clause labelled ;i2}
+% \begin{macrocode}
+\newcommand{\normrefsclause}{\clause{\normrefsname}\label{;i2}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\defclause}
+% \begin{macro}{\symclause}
+% \begin{macro}{\abbclause}
+% \begin{macro}{\defsymclause}
+% \begin{macro}{\defabbclause}
+% \begin{macro}{\symabbclause}
+% \begin{macro}{\defsymabbclause}
+% These macros start new clauses for definitions, symbols and abbreviations.
+% ISO allows these to be grouped in various ways, depending on the
+% amount of material in the respective categories.
+% These are each given the label |;i3| as one should be the third numbered clause.
+% \changes{v2.2}{2000/01/10}{Definition clauses labelled ;i3}
+% \begin{macrocode}
+\newcommand{\defclause}{\clause{\defname}\label{;i3}}
+\newcommand{\symclause}{\clause{\symname}\label{;i3}}
+\newcommand{\abbclause}{\clause{\abbname}\label{;i3}}
+\newcommand{\defsymclause}{\clause{\defsymname}\label{;i3}}
+\newcommand{\defabbclause}{\clause{\defabbname}\label{;i3}}
+\newcommand{\symabbclause}{\clause{\symabbname}\label{;i3}}
+\newcommand{\defsymabbclause}{\clause{\defsymabbname}\label{;i3}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\defsubclause}
+% \begin{macro}{\symsubclause}
+% \begin{macro}{\abbsubclause}
+% \begin{macro}{\defsymsubclause}
+% \begin{macro}{\defabbsubclause}
+% \begin{macro}{\symabbsubclause}
+% These macros start new sub-clauses for definitions, symbols and abbreviations.
+% ISO allows these to be grouped in various ways, depending on the
+% amount of material in the respective categories.
+% \begin{macrocode}
+\newcommand{\defsubclause}{\sclause{\defname}}
+\newcommand{\symsubclause}{\sclause{\symname}}
+\newcommand{\abbsubclause}{\sclause{\abbname}}
+\newcommand{\defsymsubclause}{\sclause{\defsymname}}
+\newcommand{\defabbsubclause}{\sclause{\defabbname}}
+\newcommand{\symabbsubclause}{\sclause{\symabbname}}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\fcandaclause}
+% This macro starts a clause `Fundamental concepts and assumptions'.
+% The actual title is given by the value of |\fcandaname|.
+% \begin{macrocode}
+\newcommand{\fcandaclause}{\clause{\fcandaname}}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\bibannex}
+% This macro starts a bibliography (which used to be an
+% informative annex).
+%
+% \changes{v2}{1997}{Bibliography is no longer an informative annex}
+% \changes{v2.2}{2000/01/10}{Reconfigured \cs{bibannex} to use \cs{fibicl@use}}
+% \begin{macrocode}
+\newcommand{\bibannex}{%
+ \typeout{Bibliography}
+ \clearpage
+ \fibicl@use*{\bibname}
+ \tocskip{\tocentryskip}
+ \addcontentsline{toc}{index}{\bibname}
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Boilerplate}
+%
+% ISO defines the wording of certain textual elements within a
+% standard.
+%
+% This class has been prepared for standard documents in the
+% English language. The boilerplate text commands must be
+% redefined for other languages.
+%
+% \begin{macro}{\copyrightnotice}
+% The required English text of the copyright notice.
+% \changes{v2.3}{2001/07/06}{Text of \cs{copyrightnotice} changed}
+% \begin{macrocode}
+\newcommand{\copyrightnotice}{%
+\copyright\quad \copyrightname\quad \thesyear\newline
+All rights reserved. Unless otherwise specified, no part of
+this publication may be reproduced or utilized in any form or
+by any means, electronic or mechanical, including photocopying
+and microfilm, without permission in writing from %%% the publisher.
+%%%\makebox[\textwidth][r]{%
+%%%ISO/IEC Copyright Office $\bullet$ Case Postale 56 $\bullet$
+%%%CH-1211 Gen{\`e}ve 20 $\bullet$ Switzerland}
+%%\vspace{\baselineskip}\newline
+%%\hspace*{1em} International Organization for Standardization\newline
+%%\hspace*{1em} Case Postale 56 $\bullet$ CH-2111 Gen{\`e}ve 20 $\bullet$ Switzerland
+either ISO at the address below or ISO's member body in the country
+of the requester.
+\par
+\noindent ISO copyright office \\
+Case postale 56. CH-1211 Geneva 20 \\
+Tel. +41 22 749 01 11 \\
+Fax +41 22 734 10 79 \\
+E-mail \texttt{copyright@iso.ch} \\
+Web \texttt{www.iso.ch}
+% \end{macrocode}
+% For an IS or a Tech Report, need a blank line and place of printing
+% \begin{macrocode}
+%%\ifisst@ndard \ifc@pyright
+%% \vspace{\baselineskip}\newline\noindent
+%% Printed in Switzerland
+%%\fi\fi
+%%\ift@chrep \ifc@pyright
+%% \vspace{\baselineskip}\newline\noindent
+%% Printed in Switzerland
+%%\fi\fi
+}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\fwdbp}
+%
+% The prescribed text of the initial paragraphs in an ISO Standard
+% Foreword.
+% \begin{macrocode}
+\newcommand{\fwdbp}{\input{isofwdbp}}
+% \end{macrocode}
+%
+% The following is the text contained in the file \file{isofwdbp.tex}.
+% \changes{v2.1}{1999/02/15}{Change to foreword boilerplate}
+% \changes{v2.3}{2001/07/06}{Change to foreword boilerplate}
+% \changes{v2.3}{2001/08/29}{Yet another ISO change to foreword boilerplate}
+% \begin{macrocode}
+%</iso>
+%<*fwd1>
+\ProvidesFile{isofwdbp.tex}[2001/08/29 Boilerplate for start of Foreword]
+
+ISO (the International Organization for Standardization) is a worldwide
+federation of national standards bodies (ISO member bodies). The work
+of preparing International Standards is normally carried out through
+ISO technical committees. Each member body interested in a subject for
+which a technical committee has been established has the right to be
+represented on that committee. International organizations,
+governmental and non-governmental, in liaison with ISO, also take part
+in the work. ISO collaborates closely with the International
+Electrotechnical Commission (IEC) on all matters of electrotechnical
+standardization.
+
+International Standards are drafted in accordance with the rules given
+in the ISO/IEC Directives, Part~2.
+
+The main task of technical committees is to prepare International Standards.
+Draft International Standards adopted by the technical committees are
+circulated to the member bodies for voting. Publication as an
+International Standard requires approval by at least 75\% of the member
+bodies casting a vote.
+\par
+
+%</fwd1>
+%<*iso>
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\tspasfwdbp}
+%
+% The prescribed text of the initial paragraphs in an ISO
+% Technical Specification or PAS Foreword.
+% \begin{macrocode}
+\newcommand{\tspasfwdbp}{\input{tspasfwdbp}}
+% \end{macrocode}
+%
+% The following is the text contained in the file \file{tspasfwdbp.tex}.
+% \changes{v2.3}{2001/07/06}{Added TS/PAS foreword boilerplate}
+% \changes{v2.3}{2002/01/10}{Modified TS/PAS foreword boilerplate}
+% \begin{macrocode}
+%</iso>
+%<*tspasfwd1>
+\ProvidesFile{tspasfwdbp.tex}[2001/07/06 Boilerplate for start of TS/PAS Foreword]
+
+ISO (the International Organization for Standardization) is a worldwide
+federation of national standards bodies (ISO member bodies). The work
+of preparing International Standards is normally carried out through
+ISO technical committees. Each member body interested in a subject for
+which a technical committee has been established has the right to be
+represented on that committee. International organizations,
+governmental and non-governmental, in liaison with ISO, also take part
+in the work. ISO collaborates closely with the International
+Electrotechnical Commission (IEC) on all matters of electrotechnical
+standardization.
+
+International Standards are drafted in accordance with the rules given
+in the ISO/IEC Directives, Part~2.
+
+ The main task of technical committees is to prepare International
+Standards.
+Draft International Standards adopted by the technical committees are
+circulated to the member bodies for voting. Publication as an
+International Standard requires approval by at least 75\% of the member
+bodies casting a vote.
+
+ In other circumstances, particularly when there is an urgent market
+requirement for such documents, a technical committee may decide to
+publish other types of normative document:
+\begin{itemize}
+\item an ISO Publicly Available Specification (ISO/PAS) represents an
+agreement between technical experts in an ISO working group and is
+accepted for publication if it is approved by more than 50\% of the
+members of the parent committee casting a vote;
+
+\item an ISO Technical Specification (ISO/TS) represents an agreement
+between the members of a technical committee and is accepted for
+publication if it is approved by 2/3 of the members of the committee
+casting a vote.
+\end{itemize}
+
+ An ISO/PAS or ISO/TS is reviewed every three years with a view to
+deciding whether it can be transformed into an International Standard.
+\par
+
+%</tspasfwd1>
+% \end{macrocode}
+% \end{macro}
+%
+% The following is the text contained in the file \file{trfwd1.tex}.
+% \begin{macrocode}
+%<*trfwd1>
+ %% trfwd1.tex Boilerplate for start of a tech rep Foreword clause
+%
+
+ ISO (the International Organization for Standardization) is a worldwide
+federation of national standards bodies (ISO member bodies). The work
+of preparing International Standards is normally carried out through
+ISO technical committees. Each member body interested in a subject for
+which a technical committee has been established has the right to be
+represented on that committee. International organizations,
+governmental and non-governmental, in liaison with ISO, also take part
+in the work. ISO collaborates closely with the International
+Electrotechnical Commission (IEC) on all matters of electrotechnical
+standardization.
+
+ International Standards are drafted in accordance with the rules
+given in the ISO/IEC Directives, Part 3.
+
+ The main task of technical committees is to prepare International
+Standards. Draft International Standards adopted by the technical
+committees are circulated to the member bodies for voting. Publication
+as an International Standard requires approval by at least 75\% of the
+member bodies casting a vote.
+
+ In other circumstances, particularly when there is an urgent market
+requirement for such documents, a technical committee may decide to
+publish other types of normative document:
+\begin{itemize}
+\item an ISO Publicly Available Specification (ISO/PAS) represents an
+agreement between technical experts in an ISO working group and is
+accepted for publication if it is approved by more than 50\% of the
+members of the parent committee casting a vote;
+
+\item an ISO Technical Specification (ISO/TS) represents an agreement
+between the members of a technical committee and is accepted for
+publication if it is approved by 2/3 of the members of the committee
+casting a vote.
+\end{itemize}
+
+ An ISO/PAS or ISO/TS is reviewed every three years with a view to
+deciding whether it can be transformed into an International Standard.
+\par
+
+
+%</trfwd1>
+%<*iso>
+% \end{macrocode}
+%
+%
+% \begin{macro}{\trfwdbpi}
+% \begin{macro}{\trfwdbpii}
+% \changes{v2.1}{1999/03/19}{Removed trfwdbpii command}
+% Required texts for a technical report foreword.
+% Use as: |\trfwdbpii{|\meta{application field}|}|.
+% \begin{macrocode}
+\newcommand{\trfwdbpi}{\input{trfwd1}}
+\newcommand{\trfwdbpii}[1]{%
+ \ClassError{iso}{The \protect\trfwdpbii\space command has been removed}%
+ {Type <return> to proceed, and change your source file before
+ running LaTeX again.}
+}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\intropatents}
+% |\intropatents| is the boilerplate for the last Introduction
+% paragraph dealing with potential additional patent rights.
+% \changes{v2.3}{2001/07/06}{Added \cs{fwdpatents} macro}
+% \changes{v2.3}{2001/08/29}{Changed \cs{fwdpatents} macro}
+% \changes{v2.3}{2002/01/10}{Changed \cs{fwdpatents} macro to \cs{intropatents}}
+% \begin{macrocode}
+\newcommand{\intropatents}{\par
+ Attention is drawn to the possibility that some of the elements of this
+document may be the subject of patent rights
+other than those mentioned above.
+ISO [and/or] IEC shall not be held responsible
+for identifying any or all such patent rights.\par}
+
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\fwdnopatents}
+% |\fwdnopatents| is the boilerplate for the Foreword
+% paragraph dealing with potential patent rights.
+% \changes{v2.3}{2001/08/29}{Added \cs{fwdnopatents} macro}
+% \begin{macrocode}
+\newcommand{\fwdnopatents}{\par
+ Attention is drawn to the possibility that some of the elements of this
+document may be the subject of patent rights.
+ISO shall not be held responsible
+for identifying any or all such patent rights.\par}
+
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \begin{macro}{\normrefbp}
+% The required text for the introduction
+% of the normative references clause. Use as:
+% |\normrefbp{|\meta{standard identifier}|}|
+% \changes{v2}{1997/11/30}{\cs{normrefbp} boilerplate modified}
+% \begin{macrocode}
+\newcommand{\normrefbp}[1]{%
+
+The following normative documents contain provisions which, through
+reference in this text, constitute provisions of this #1.
+For dated references, subsequent amendments to, or revisions of,
+any of these publications do not apply.
+However, parties
+to agreements based on this #1
+are encouraged to investigate the possibility of applying
+the most recent editions of the normative documents indicated below.
+For undated references, the latest edition of the normative
+document referred to applies.
+Members of ISO and IEC maintain registers of currently
+valid International Standards.
+
+}
+% \end{macrocode}
+% \end{macro}
+%
+%
+% \section{Initialization} \label{sec:init}
+%
+% \subsection{Words and phrases}
+%
+% \begin{macro}{\annexname}
+% \begin{macro}{\bibname}
+% \begin{macro}{\contentsname}
+% \begin{macro}{\defname}
+% \begin{macro}{\symname}
+% \begin{macro}{\abbname}
+% \begin{macro}{\defabbname}
+% \begin{macro}{\defsymname}
+% \begin{macro}{\defsymabbname}
+% \begin{macro}{\fcandaname}
+% \begin{macro}{\forewordname}
+% \begin{macro}{\indexname}
+% \begin{macro}{\informativename}
+% \begin{macro}{\introductionname}
+% \begin{macro}{\normativename}
+% \begin{macro}{\normrefsname}
+% \begin{macro}{\scopename}
+% \begin{macro}{\sectionname}
+% \begin{macro}{\symabbname}
+% This document class is for documents prepared in the English language.
+% To prepare a version for another language, various English words
+% and phrases must
+% be replaced. The English elements that require replacement are
+% defined below in command names.
+%
+% This list is for titles of document sections.
+%
+% \changes{v2.1}{1999/02/15}{Changed defname, defabbname, defsymname, defsymabbname}
+% \begin{macrocode}
+\newcommand{\abbname}{Abbreviations}
+\newcommand{\annexname}{Annex}
+\newcommand{\bibname}{Bibliography}
+\newcommand{\contentsname}{Contents}
+\newcommand{\defname}{Terms and definitions}
+\newcommand{\defabbname}{Terms, definitions, and abbreviations}
+\newcommand{\defsymname}{Terms, definitions, and symbols}
+\newcommand{\defsymabbname}{Terms, definitions, abbreviations, and symbols}
+\newcommand{\fcandaname}{Fundamental concepts and assumptions}
+\newcommand{\forewordname}{Foreword}
+\newcommand{\indexname}{Index}
+\newcommand{\informativename}{informative}
+\newcommand{\introductionname}{Introduction}
+\newcommand{\normativename}{normative}
+\newcommand{\normrefsname}{Normative references}
+\newcommand{\scopename}{Scope}
+\newcommand{\sectionname}{Section}
+\newcommand{\symname}{Symbols}
+\newcommand{\symabbname}{Symbols and abbreviations}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\copyrightname}
+% \begin{macro}{\examplename}
+% \begin{macro}{\figurename}
+% \begin{macro}{\inscopename}
+% \begin{macro}{\ISname}
+% \begin{macro}{\listannexname}
+% \begin{macro}{\listfigurename}
+% \begin{macro}{\listtablename}
+% \begin{macro}{\notename}
+% \begin{macro}{\outofscopename}
+% \begin{macro}{\pagename}
+% \begin{macro}{\tablename}
+% \begin{macro}{\tbpname}
+%
+% These are the names and phrases used for general elements.
+%
+% \changes{v2}{1997/11/30}{\cs{examplesname} and \cs{notesname} deleted}
+% \changes{v2.3}{2001/07/06}{Additional forms of \cs{ISname}}
+% \begin{macrocode}
+\newcommand{\copyrightname}{ISO}
+\newcommand{\examplename}{EXAMPLE}
+ %%%\newcommand{\examplesname}{EXAMPLES}
+\newcommand{\figurename}{Figure}
+\newcommand{\inscopename}{The following are within the scope of this }
+\newcommand{\ISname}{INTERNATIONAL STANDARD}
+\iffdisstandard\renewcommand{\ISname}{FINAL DRAFT INTERNATIONAL STANDARD}\fi
+\ifdisstandard\renewcommand{\ISname}{DRAFT INTERNATIONAL STANDARD}\fi
+\ifcdstandard\renewcommand{\ISname}{COMMITTEE DRAFT}\fi
+\ifwdstandard\renewcommand{\ISname}{WORKING DRAFT}\fi
+\iftechrep\renewcommand{\ISname}{TECHNICAL REPORT}\fi
+\iftechspec\renewcommand{\ISname}{TECHNICAL SPECIFICATION}\fi
+\ifpaspec\renewcommand{\ISname}{PUBLICLY AVAILABLE SPECIFICATION}\fi
+\ifotherdoc\renewcommand{\ISname}{}\fi
+\newcommand{\listannexname}{Annexes}
+\newcommand{\listfigurename}{Figures}
+\newcommand{\listtablename}{Tables}
+\newcommand{\notename}{NOTE}
+ %%%\newcommand{\notesname}{NOTES}
+\newcommand{\outofscopename}{The following are outside the scope of this }
+\newcommand{\pagename}{Page}
+\newcommand{\tablename}{Table}
+\newcommand{\tbpname}{To be published.}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\annexrefname}
+% \begin{macro}{\clauserefname}
+% \begin{macro}{\examplerefname}
+% \begin{macro}{\figurerefname}
+% \begin{macro}{\noterefname}
+% \begin{macro}{\tablerefname}
+% \begin{macro}{\pagerefname}
+% These are the names for referenced document elements. Except when
+% starting a sentence or referring to a figure, references to document
+% elements start with
+% a lower case letter.
+% \changes{v2}{1997/11/30}{\cs{figurename} changed to print Figure}
+% \changes{v2}{1997/11/30}{\cs{tablerefname} changed to print Table}
+% \changes{v2}{1997/11/30}{Added \cs{noterefname} command}
+% \changes{v2.3}{2001/07/06}{Added \cs{pagerefname} command}
+% \begin{macrocode}
+\newcommand{\annexrefname}{annex}
+\newcommand{\clauserefname}{clause}
+\newcommand{\examplerefname}{example}
+\newcommand{\figurerefname}{Figure}
+\newcommand{\noterefname}{note}
+\newcommand{\tablerefname}{Table}
+\newcommand{\pagerefname}{page}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\abstractname}
+% \begin{macro}{\appendixname}
+% \begin{macro}{\chaptername}
+% \begin{macro}{\partname}
+% \begin{macro}{\refname}
+% These names are used in the standard \LaTeX\ classes but are not
+% applicable in this class. We just make them null.
+% \begin{macrocode}
+\newcommand{\abstractname}{}
+\newcommand{\appendixname}{}
+\newcommand{\chaptername}{}
+\newcommand{\partname}{}
+\newcommand{\refname}{}
+% \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
+% \subsection{Date}
+%
+% \begin{macro}{\today}
+% This macro uses the \TeX\ primitives |\month|, |\day| and |\year|
+% to provide the date of the \LaTeX-run.
+% \begin{macrocode}
+\newcommand{\today}{\ifcase\month\or
+ January\or February\or March\or April\or May\or June\or
+ July\or August\or September\or October\or November\or December\fi
+ \space\number\day, \number\year}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{Two column mode}
+%
+% \begin{macro}{\columnsep}
+% This gives the distance between two columns in two column mode.
+% \begin{macrocode}
+\setlength\columnsep{10\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\columnseprule}
+% This gives the width of the rule between two columns in two
+% column mode. We have no visible rule.
+% \begin{macrocode}
+\setlength\columnseprule{0\p@}
+% \end{macrocode}
+% \end{macro}
+%
+% \subsection{The page style}
+% We use the page style \pstyle{headings} by
+% default and start with roman numbering for the
+% front matter, this being reset to arabic by the title
+% or first main matter section/clause.
+% \begin{macrocode}
+\pagestyle{headings}
+\pagenumbering{roman}
+% \end{macrocode}
+% We set the sectional counters to zero and the |tocdepth| to
+% one (clauses only listed).
+% \begin{macrocode}
+\setcounter{clause}{0}
+\setcounter{annex}{0}
+\setcounter{tocdepth}{1}
+% \end{macrocode}
+%
+%
+% \subsection{Single or double sided printing}
+%
+%
+% We do not try to make each page as long as all the others, even
+% though it is two-side printing.
+% \begin{macrocode}
+\@twosidetrue
+\raggedbottom
+% \end{macrocode}
+% When the \Lopt{twocolumn} option was specified we call
+% |\twocolumn| to activate this mode. We try to make each column as
+% long as the others, but call |sloppy| to make our life easier.
+% \begin{macrocode}
+\if@twocolumn
+ \twocolumn
+ \sloppy
+ \flushbottom
+% \end{macrocode}
+% Normally we call |\onecolumn| to initiate typesetting in one
+% column.
+% \begin{macrocode}
+\else
+ \onecolumn
+\fi
+% \end{macrocode}
+%
+% The end of the class definitions.
+% \begin{macrocode}
+%</iso>
+% \end{macrocode}
+%
+%
+%
+% \section{The \file{askinc} package} \label{sec:askinc}
+%
+% This package provides an interactive `include' facility. It was developed
+% by Phil Spiby of CADDETC, Leeds, United Kingdom in the late eighties.
+% \begin{macrocode}
+%<*inc>
+% \end{macrocode}
+%
+% \begin{macro}{\infile}
+% The |\infile{|\meta{file name}|}| command is a cross between the
+% |\input| and |\include| commands. When this package is used, at
+% runtime the user is asked to interactively specify a comma-seperated
+% list of the names of |\infile|d files that are to be processed. In
+% this sense it acts like the |\include| and |\includeonly| pair of
+% commands. If no list is entered at the terminal (by hitting the
+% \meta{RETURN} key) then all |\infile|d files are processed. In this
+% sense it acts like the |\input| command. However, like the |\include|
+% command, an |\infile|d file cannot contain any other |\infile|d file.
+%
+% \begin{macro}{temp}
+% Define a counter \Lcount{temp} for general use within the include files.
+% This is required to ensure that the contents of |\incfiles| is
+% used and not |\incfiles| the string.
+% \begin{macrocode}
+\newcounter{temp}
+% \end{macrocode}
+% \end{macro}
+% Now for the rest of the definition.
+% \begin{macrocode}
+\def\readinclude#1\endread{\gdef\myincludeonly{\includeonly{#1}}}
+\long\def\stripspace#1 \nextspace{#1}
+\typeout{Which files do you want processing ?}
+\message{enter names (separated by commas) or <RET> for all.}
+\message{}\global\read-1 to\incfiles
+\if\incfiles\par\let\infile\input
+\else\let\infile\include
+\edef\incfiles{\expandafter\stripspace\incfiles\nextspace}
+\expandafter\readinclude\incfiles\endread\myincludeonly\fi
+% \end{macrocode}
+% \end{macro}
+%
+% The end of the askinc package.
+% \begin{macrocode}
+%</inc>
+% \end{macrocode}
+%
+%
+%
+%
+%
+%
+% \bibliographystyle{alpha}
+%
+% \begin{thebibliography}{GMS94}
+%
+% \bibitem[GMS94]{GOOSSENS94}
+% Michel Goossens, Frank Mittelbach, and Alexander Samarin.
+% \newblock \emph{The LaTeX Companion}.
+% \newblock Addison-Wesley Publishing Company, 1994.
+%
+% \bibitem[ISO97]{ISOD397}
+% ISO/IEC Directives Part 3.
+% \newblock \emph{Drafting and presentation of International
+% Standards}, Third edition, 1997.
+%
+% \bibitem[ISO01]{ISOD201}
+% ISO/IEC Directives Part 2.
+% \newblock \emph{Rules for the structure and drafting
+% of International Standards}, Fourth edition, 2001.
+%
+% \bibitem[Wil96]{PRW96i}
+% Peter~R. Wilson.
+% \newblock \emph{{LaTeX for standards: The LaTeX package files user manual}}.
+% \newblock NIST Report NISTIR, June 1996.
+%
+% \end{thebibliography}
+%
+%
+% \Finale
+%
+\endinput
+
+%% \CharacterTable
+%% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%% Digits \0\1\2\3\4\5\6\7\8\9
+%% Exclamation \! Double quote \" Hash (number) \#
+%% Dollar \$ Percent \% Ampersand \&
+%% Acute accent \' Left paren \( Right paren \)
+%% Asterisk \* Plus \+ Comma \,
+%% Minus \- Point \. Solidus \/
+%% Colon \: Semicolon \; Less than \<
+%% Equals \= Greater than \> Question mark \?
+%% Commercial at \@ Left bracket \[ Backslash \\
+%% Right bracket \] Circumflex \^ Underscore \_
+%% Grave accent \` Left brace \{ Vertical bar \|
+%% Right brace \} Tilde \~}
+
+
+
diff --git a/Master/texmf-dist/source/latex/iso/isoe.ins b/Master/texmf-dist/source/latex/iso/isoe.ins
new file mode 100644
index 00000000000..2a1bfab67ba
--- /dev/null
+++ b/Master/texmf-dist/source/latex/iso/isoe.ins
@@ -0,0 +1,96 @@
+%%
+%% isoe.dtx
+%% This work has been partially funded by the US government and is
+%% not subject to copyright.
+%%
+%% This program is provided under the terms of the
+%% LaTeX Project Public License distributed from CTAN
+%% archives in directory macros/latex/base/lppl.txt.
+%%
+%% This file will generate fast loadable files and documentation
+%% driver files from the doc files in this package when run through
+%% LaTeX or TeX.
+%%
+%% Author: Peter Wilson (CUA and NIST)
+%% now at: peter.r.wilson@boeing.com
+%%
+%%
+%% --------------- start of docstrip commands ------------------
+%%
+\def\batchfile{isoe.ins}
+\input docstrip.tex
+\preamble
+
+ This work has been partially funded by the US government and is
+ not subject to copyright.
+
+ This program is provided under the terms of the
+ LaTeX Project Public License distributed from CTAN
+ archives in directory macros/latex/base/lppl.txt.
+
+ Author: Peter Wilson (CUA and NIST)
+ now at: peter.r.wilson@boeing.com
+
+\endpreamble
+
+\keepsilent
+
+%% \Msg{*** Generating the driver file ***}
+
+%% \generateFile{isoe.drv}{t}{\from{isoe.dtx}{driver}}
+
+\Msg{*** Generating the LaTeX2e document class files ***}
+
+\generateFile{isov2.cls}{t}{\from{isoe.dtx}{iso}}
+
+\Msg{*** Generating the LaTeX2e document class option files ***}
+
+\generateFile{iso9.clo}{t}{\from{isoe.dtx}{9pt}}
+\generateFile{iso10.clo}{t}{\from{isoe.dtx}{10pt}}
+\generateFile{iso11.clo}{t}{\from{isoe.dtx}{11pt}}
+
+\Msg{*** Generating the LaTeX2e package files ***}
+
+\generateFile{askincv1.sty}{t}{\from{isoe.dtx}{inc}}
+
+\Msg{*** Generating the boilerplate files ***}
+
+\generateFile{isofwdbp.tex}{t}{\from{isoe.dtx}{fwd1}}
+\generateFile{tspasfwdbp.tex}{t}{\from{isoe.dtx}{tspasfwd1}}
+\generateFile{trfwd1.tex}{t}{\from{isoe.dtx}{trfwd1}}
+
+\Msg{*** Generating the makeindex style file ***}
+
+\generateFile{iso.ist}{t}{\from{isoe.dtx}{ist}}
+
+\Msg{***********************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* files into a directory searched by TeX:}
+\Msg{*}
+\Msg{* For a LaTeX2e system:}
+\Msg{* \space\space isov2.cls}
+\Msg{* \space\space iso9.clo}
+\Msg{* \space\space iso10.clo}
+\Msg{* \space\space iso11.clo}
+\Msg{* \space\space askincv1.sty}
+\Msg{* \space\space isofwdbp.tex}
+\Msg{* \space\space tspasfwdbp.tex}
+\Msg{* \space\space trfwd1.tex}
+\Msg{*}
+\Msg{*}
+\Msg{* For MakeIndex:}
+\Msg{* \space\space iso.ist}
+\Msg{*}
+\Msg{*}
+\Msg{* To produce the documented source run the files ending with}
+\Msg{* `.dtx' through LaTeX.}
+\Msg{* Process any name.idx file by:}
+\Msg{* \space\space\space\space makeindex -s gind.ist name}
+\Msg{* Process any name.glo file by:}
+\Msg{* \space\space\space\space makeindex -s gglo.ist -o name.gls name.glo}
+\Msg{*}
+\Msg{* Happy TeXing}
+\Msg{***********************************************************}
+
+\endinput
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 13:02:42 +0000