tugboat update

git-svn-id: svn://tug.org/texlive/trunk@1603 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 241 insertions, 299 deletions

diff --git a/Master/texmf-dist/source/latex/tugboat/tugboat.dtx b/Master/texmf-dist/source/latex/tugboat/tugboat.dtx
index a0d6f5540ba..e5fa41ababe 100644
--- a/Master/texmf-dist/source/latex/tugboat/tugboat.dtx
+++ b/Master/texmf-dist/source/latex/tugboat/tugboat.dtx
@@ -1,11 +1,31 @@
 %^^A This (the production version of the macros) started life as xpt3
 %^^A and no need has arisen to perform other experiments...
-%
+% tugboat.dtx - main source for LaTeX TUGboat classes.
+% 
 % \iffalse (this is a meta-comment (so they say))
-% Copyright (C) 1995,1996,1997,1998,2000,2004 TeX Users Group.
-% Copying of this file is authorized only if either:
-%  (1) you make absolutely no changes to your copy, OR
-%  (2) if you do make changes, you first rename it to some other name.
+%% Copyright 1994,1995,1996,2001,2005,2006 TeX Users Group.
+%% 
+%% This file is part of the tugboat package.
+%% 
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2003/12/01 or later.
+%%
+%% This work has the LPPL maintenance status "maintained".
+%% 
+%% The Current Maintainer of this work is the TeX Users Group
+%% (http://tug.org/TUGboat).
+%%
+%% The list of all files belonging to the distribution is
+%% given in the file `manifest.txt'. 
+%%
+%% The list of derived (unpacked) files belonging to the distribution 
+%% and covered by LPPL is defined by the unpacking scripts (with 
+%% extension .ins) which are part of the distribution.
 % \fi
 %
 % \section{Document preambles}
@@ -20,7 +40,7 @@
 %<ltugboatsty>\ProvidesPackage{ltugboat}
 %<ltugprocsty>\ProvidesPackage{ltugproc}
 %<ltugcomn>   \ProvidesPackage{ltugcomn}
-                   [2004/07/06 v1.6
+                   [2006/05/05 v2.0
 %<ltugboatcls>                       TUGboat journal class%
 %<ltugproccls>                       TUG conference proceedings class%
 %<ltugboatsty|ltugprocsty>           TUG compatibility package%
@@ -42,7 +62,7 @@
 %
 % RCS identification of this file (lest I fail to update the above ;-)
 %
-% $Id: tugboat.dtx,v 1.42 2004/05/30 13:21:40 rf Exp rf $
+% $Id: tugboat.dtx,v 1.46 2006/03/22 11:27:54 rf10 Exp rf10 $
 %
 % Note that the RCS version relates to the number of times the file
 % has been checked-in, which relates to a development process taking
@@ -107,12 +127,13 @@
 %    \end{macrocode}
 %
 % \fi
-% \CheckSum{4637}
+% \CheckSum{4458}
 %
 % \section{Introduction}
 %
 % This file contains all the macros for typesetting \TUB{} with
-% both plain \TeX\ and \LaTeXe.
+% \LaTeXe.
+%
 % \subsection{Summary of control sequences}
 % 
 % Abbreviations.  Just a listing with indications of expansion where
@@ -130,6 +151,7 @@
 % |\ConTeXt|&       \ConTeXt\\
 % |\Cplusplus|&     C++\\
 % |\DTD|&\\
+% |\DVIPDFMx|&      \DVIPDFMx\\
 % |\DVItoVDU|&      DVItoVDU\\
 % |\eTeX|&          \eTeX\\
 % |\Ghostscript|&\\
@@ -184,6 +206,7 @@
 % |\VAX|&\\
 % |\VorTeX|&\\
 % |\XeT|&\\
+% |\XeTeX|&         reflected and lowered first `E'\\
 % |\XML|&\\
 % |\WEB|&\\
 % |\WEAVE|&\\
@@ -310,12 +333,10 @@
 % \LaTeXe{} we can use the \cs{Class*} commands:
 %
 %    \begin{macrocode}
-%<*latex2e>
 \def\TBInfo{\ClassInfo{\@tugclass}}
 \def\TBError{\ClassError{\@tugclass}}
 \def\TBWarning{\ClassWarning{\@tugclass}}
 \def\TBWarningNL{\ClassWarningNoLine{\@tugclass}}
-%</latex2e>
 %    \end{macrocode}
 %
 % Some trivial options, just flicking switches, etc.
@@ -541,18 +562,9 @@
 \def\makespace #1{\catcode`#1=10 }
 \def\makeletter#1{\catcode`#1=11 }
 \chardef\other=12
-%<*!latex>
-\def\makeother #1{\catcode`#1=\other}
-%</!latex>
-%<*latex>
 \let\makeother\@makeother
-%</latex>
 \def\makeactive#1{\catcode`#1=13 }
 \def\makecomment#1{\catcode`#1=14 }
-%<*!latex>
-\def\makeatletter{\makeletter\@}
-\def\makeatother {\makeother\@}
-%</!latex>
 %    \end{macrocode}
 % |\savecat#1| and |\restorecat#1| will save and restore the category
 % of a given character.  These are useful in cases where one doesn't
@@ -588,13 +600,10 @@
 % necessary:
 %
 %    \begin{macrocode}
-%<*latex2e>
 \providecommand\hb@xt@{\hbox to}
 \providecommand\textsuperscript[1]{\ensuremath{\m@th
                                      ^{\mbox{\fontsize\sf@size\z@
                                          \selectfont #1}}}}
-%</latex2e>
-%<!latex2e>\def\hb@xt@{\hbox to}
 %    \end{macrocode}
 % (Note that that definition of \cs{textsuperscript} isn't robust, but
 % probably doesn't need to be\dots  What's more, it doesn't appear in
@@ -605,61 +614,53 @@
 %
 % Font used for the METAFONT logo, etc.
 %    \begin{macrocode}
-%<!latex2e>\font\manual=logo10 
 \def\AllTeX{(\La\kern-.075em)\kern-.075em\TeX}
 \def\AMS{American Mathematical Society}
-%<!latex2e>\def\AmS{{\the\textfont2 A}\kern-.1667em\lower.5ex\hbox
-%<!latex2e>        {\the\textfont2 M}\kern-.125em{\the\textfont2 S}}
-%<latex2e>\def\AmS{$\mathcal{A}$\kern-.1667em\lower.5ex\hbox
-%<latex2e>    {$\mathcal{M}$}\kern-.125em$\mathcal{S}$}
+\def\AmS{$\mathcal{A}$\kern-.1667em\lower.5ex\hbox
+    {$\mathcal{M}$}\kern-.125em$\mathcal{S}$}
 \def\AmSLaTeX{\AmS-\LaTeX}
 \def\AmSTeX{\AmS-\TeX}
+\def\ANSI{\acro{ANSI}}
+\def\ASCII{\acro{ASCII}}
 \def\aw{A\kern.1em-W}
 \def\AW{Addison\kern.1em-\penalty\z@\hskip\z@skip Wesley}
-%<!latex2e>\def\BibTeX{{\rm B\kern-.05em{\smc i\kern-.025emb}\kern-.08em\TeX}}
-%<latex2e>\def\BibTeX{\textsc{Bib}\kern-.08em\TeX}
-%<!latex2e>\def\CandT{{\sl Computers \& Typesetting}}
-%<latex2e>\def\CandT{\textsl{Computers \& Typesetting}}
+\def\BibTeX{\textsc{Bib}\kern-.08em\TeX}
+\def\CandT{\textsl{Computers \& Typesetting}}
 %    \end{macrocode}
 % We place our \cs{kern} after \cs{-} so that it disappears if the
 % hyphenation is taken:
 %    \begin{macrocode}
 \newcommand\ConTeXt{C\kern-.0333emon\-\kern-.0667em\TeX\kern-.0333emt}
 \newcommand\Cplusplus{C\raisebox{.7ex}{$_{++}$}}
+\def\CSS{\acro{CSS}}
 \def\CTAN{\acro{CTAN}}
 \def\DTD{\acro{DTD}}
+\def\DVD{\acro{DVD}}
+\def\DVIPDFMx{\acro{DVIPDFM}$x$}
 \def\DVItoVDU{DVIto\kern-.12em VDU}
-%<latex2e>\DeclareRobustCommand\eTeX{\ensuremath{\varepsilon}-\kern-.125em\TeX}
-%<!latex2e>\def\eTeX{{$\varepsilon$}-\kern-.125em\TeX}
+\DeclareRobustCommand\eTeX{\ensuremath{\varepsilon}-\kern-.125em\TeX}
+\def\FAQ{\acro{FAQ}}
+\def\FTP{\acro{FTP}}
 \def\Ghostscript{Ghost\-script}
+\def\GNU{\acro{GNU}}
+\def\GUI{\acro{GUI}}
 \def\Hawaii{Hawai`i}
 \def\HTML{\acro{HTML}}
+\def\HTTP{\acro{HTTP}}
 \def\ISBN{\acro{ISBN}}
 \def\ISSN{\acro{ISSN}}
+\def\JPEG{\acro{JPEG}}
 \def\JTeX{\leavevmode\hbox{\lower.5ex\hbox{J}\kern-.18em\TeX}}
-%<!latex2e>\def\JoT{{\sl The Joy of \TeX}}
-%<latex2e>\def\JoT{\textsl{The Joy of \TeX}}
-%<*!latex2e>
-\def\LAMSTeX{L\raise.42ex\hbox{\kern-.3em\the\scriptfont2 A}%
-    \kern-.2em\lower.376ex\hbox{\the\textfont2 M}\kern-.125em
-    {\the\textfont2 S}-\TeX}
-%</!latex2e>
-%<*latex2e>
+\def\JoT{\textsl{The Joy of \TeX}}
 \def\LAMSTeX{L\raise.42ex\hbox{\kern-.3em
                    $\m@th$\fontsize\sf@size\z@\selectfont
                    $\m@th\mathcal{A}$}%
     \kern-.2em\lower.376ex\hbox{$\m@th\mathcal{M}$}\kern-.125em
     {$\m@th\mathcal{S}$}-\TeX}
-%</latex2e>
-%<!latex2e>\def\La{\TestCount=\the\fam \leavevmode L\raise.42ex
-%<!latex2e>        \hbox{$\fam\TestCount\scriptstyle\kern-.3em A$}}
-%    \end{macrocode}
-%
-% With the facilities of \LaTeXe, we can do rather better.  This code
+% This code
 % is hacked from its definition of \cs{LaTeX}; it allows slants (for
 % example) to propagate into the raised (small) `A':
 %    \begin{macrocode}
-%<*latex2e>
 \newcommand{\La}%
    {L\kern-.36em
         {\setbox0\hbox{T}%
@@ -670,7 +671,6 @@
                             A}%
                       \vss}%
         }}
-%</latex2e>
 %    \end{macrocode}
 %
 % We started with the intention that we wouldn't redefine \cs{LaTeX}
@@ -682,8 +682,8 @@
 %
 %    \begin{macrocode}
 %<!latex>\def\LaTeX{\La\kern-.15em\TeX}
-\def\MathML{Math\acro{ML}}
 \def\MacOSX{Mac\,\acro{OS\,X}}
+\def\MathML{Math\acro{ML}}
 \def\Mc{\setbox\TestBox=\hbox{M}M\vbox
    to\ht\TestBox{\hbox{c}\vfil}} %  for Robert McGaffey
 %    \end{macrocode}
@@ -693,17 +693,10 @@
 % short extract of Vieth's stuff.  Either way, we don't need to
 % specify \cs{MF} or \cs{MP}
 %    \begin{macrocode}
-%<!latex2e>\def\MF{{\manual META}\-{\manual FONT}\@}
-%<!latex2e>\def\mf{{\smc Metafont}}
-%<latex2e>\def\mf{\textsc{Metafont}}
-%<!latex2e>\def\MFB{{\sl The \slMF book}}
-%<latex2e>\def\MFB{\textsl{The \MF book}}
-%<!latex2e>\def\MP{{\manual META}\-{\manual POST}\@}
-%<*latex2e>
+\def\mf{\textsc{Metafont}}
+\def\MFB{\textsl{The \MF book}}
 \let\TB@@mp\mp
 \DeclareRobustCommand\mp{\ifmmode\TB@@mp\else MetaPost\fi}
-%</latex2e>
-%    \end{macrocode}
 %
 % In order that the \cs{OMEGA} command will switch to using the TS1
 % variant of the capital Omega character if \texttt{textcomp.sty} is
@@ -712,64 +705,51 @@
 % than to use \cs{let}\dots
 %
 %    \begin{macrocode}
-%<*latex2e>
 \DeclareTextSymbol{\textohm}{OT1}{'012}
 \DeclareTextSymbolDefault{\textohm}{OT1}
 \newcommand\OMEGA{\textohm}
 \DeclareRobustCommand{\OCP}{\OMEGA\acro{CP}}
 \DeclareRobustCommand{\OTP}{\OMEGA\acro{TP}}
-%</latex2e>
 \def\mtex{T\kern-.1667em\lower.424ex\hbox{\^E}\kern-.125emX\@}
 %    \end{macrocode}
 % Revised definition of \cs{NTS} based on that used by Phil Taylor.
 %    \begin{macrocode}
 \DeclareRobustCommand\NTS{\ensuremath{\mathcal{N}\mkern-4mu
   \raisebox{-0.5ex}{$\mathcal{T}$}\mkern-2mu \mathcal{S}}}
+\def\Pas{Pascal}
 \def\pcMF{\leavevmode\raise.5ex\hbox{p\kern-.3\p@ c}MF\@}
 \def\PCTeX{PC\thinspace\TeX}
 \def\pcTeX{\leavevmode\raise.5ex\hbox{p\kern-.3\p@ c}\TeX}
-\def\Pas{Pascal}
+\def\PDF{\acro{PDF}}
 \def\PiC{P\kern-.12em\lower.5ex\hbox{I}\kern-.075emC\@}
 \def\PiCTeX{\PiC\kern-.11em\TeX}
-%<!latex2e>\def\plain{{\tt plain}}
-%<latex2e>\def\plain{\texttt{plain}}
+\def\plain{\texttt{plain}}
+\def\PNG{\acro{PNG}}
 \def\POBox{P.\thinspace O.~Box }
 \def\PS{{Post\-Script}}
+\def\RTF{\acro{RTF}}
 \def\SC{Steering Committee}
 \def\SGML{\acro{SGML}}
-%<!latex2e>\def\SliTeX{{\rm S\kern-.06em{\smc l\kern-.035emi}\kern-.06em\TeX}}
-%<latex2e>\def\SliTeX{\textrm{S\kern-.06em\textsc{l\kern-.035emi}%
-%<latex2e>                     \kern-.06em\TeX}}
-%<!latex2e>\def\slMF{\MF}
-%<latex2e> \def\slMF{\textsl{\MF}} % should never be used
-%<!latex2e>\def\stTeX{{\smc st\rm\kern-0.13em\TeX}}
-%<latex2e> \def\stTeX{\textsc{st}\kern-0.13em\TeX}
-%<!latex2e>\def\TANGLE{{\tt TANGLE}\@}
-%<latex2e>\def\TANGLE{\texttt{TANGLE}\@}
-%<!latex2e>\def\TB{{\sl The \TeX book}}
-%<latex2e>\def\TB{\textsl{The \TeX book}}
-%<!latex2e>\def\TP{{\sl \TeX\/}: {\sl The Program\/}}
-%<latex2e>\def\TP{\textsl{\TeX}: \textsl{The Program}}
-%<!latex2e>\def\TeX{T\kern-.1667em\lower.424ex\hbox{E}\kern-.125emX\@}
-%<*latex2e>
+\def\SliTeX{\textrm{S\kern-.06em\textsc{l\kern-.035emi}%
+                     \kern-.06em\TeX}}
+\def\slMF{\textsl{\MF}} % should never be used
+\def\stTeX{\textsc{st}\kern-0.13em\TeX}
+\def\TANGLE{\texttt{TANGLE}\@}
+\def\TB{\textsl{The \TeX book}}
+\def\TIFF{\acro{TIFF}}
+\def\TP{\textsl{\TeX}: \textsl{The Program}}
 \DeclareRobustCommand\TeX{T\kern-.1667em\lower.424ex\hbox{E}\kern-.125emX\@}
-%</latex2e>
 \def\TeXhax{\TeX hax}
 \def\TeXMaG{\TeX M\kern-.1667em\lower.5ex\hbox{A}%
    \kern-.2267emG\@}
-%<!latex2e>\def\TeXtures{{\it Textures}}
-%<latex2e>\def\TeXtures{\textit{Textures}}
+\def\TeXtures{\textit{Textures}}
 \let\Textures=\TeXtures
 \def\TeXXeT{\TeX-{}-\XeT}
 \def\Thanh{H\`an~Th\^e\llap{\raise 0.5ex\hbox{\'{}}}~Th\`anh}
-%<!latex2e>\def\ttn{{\sl TTN}\@}
-%<latex2e>\def\ttn{\textsl{TTN}\@}
-%<!latex2e>\def\TTN{{\sl \TeX{} and TUG News}}
-%<latex2e>\def\TTN{\textsl{\TeX{} and TUG News}}
-%<!latex2e>\def\tubfont{\sl}               % redefined in other situations
-%<!latex2e>\def\TUB{{\tubfont TUGboat\/}}
-%<latex2e>\let\texttub\textsl              % redefined in other situations
-%<latex2e>\def\TUB{\texttub{TUGboat}}
+\def\ttn{\textsl{TTN}\@}
+\def\TTN{\textsl{\TeX{} and TUG News}}
+\let\texttub\textsl              % redefined in other situations
+\def\TUB{\texttub{TUGboat}}
 \def\TUG{\TeX\ \UG}
 \def\tug{\acro{TUG}}
 \def\UG{Users Group}
@@ -778,10 +758,37 @@
 \def\VorTeX{V\kern-2.7\p@\lower.5ex\hbox{O\kern-1.4\p@ R}\kern-2.6\p@\TeX}
 \def\XeT{X\kern-.125em\lower.424ex\hbox{E}\kern-.1667emT\@}
 \def\XML{\acro{XML}}
-%<!latex2e>\def\WEB{{\tt WEB}\@}
-%<latex2e>\def\WEB{\texttt{WEB}\@}
-%<!latex2e>\def\WEAVE{{\tt WEAVE}\@}
-%<latex2e>\def\WEAVE{\texttt{WEAVE}\@}
+\def\WEB{\texttt{WEB}\@}
+\def\WEAVE{\texttt{WEAVE}\@}
+%    \end{macrocode}
+% 
+% Xe\TeX{} requires reflecting the first E, hence we complain if the
+% graphics package is not present.  (For plain documents, this can be
+% loaded via Eplain.)  Also, at Barbara's suggestion, if the current
+% font is slanted, we rotate by 180 instead of reflecting so there is at
+% least a chance to look ok.  (The magic values here seem more or less
+% ok for \texttt{cmsl} and \texttt{cmti}.)
+% 
+%    \begin{macrocode}
+\def\tubreflect#1{%
+  \@ifundefined{reflectbox}{%
+    \TBerror{A graphics package must be loaded for \string\XeTeX}%
+  }{%
+    \ifdim \fontdimen1\font>0pt
+      \raise 1.75ex \hbox{\kern.1em\rotatebox{180}{#1}}\kern-.1em
+    \else
+      \reflectbox{#1}%
+    \fi
+  }%
+}
+\def\tubhideheight#1{\setbox0=\hbox{#1}\ht0=0pt \dp0=0pt \box0 }
+\def\XeTeX{\leavevmode
+  \tubhideheight{\hbox{X%
+    \lower.5ex \hbox{\kern-.125em\tubreflect{E}}%
+    \kern-.1667em \TeX}}}
+%
+\def\XHTML{\acro{XHTML}}
+\def\XSLT{\acro{XSLT}}
 %    \end{macrocode}
 %
 % \subsection{General typesetting rules}
@@ -925,8 +932,7 @@
 \def\now{\number\hours:\ifnum\minutes<10 0\fi\number\minutes}
 \def\Now{\today\ \now}
 \newif\ifPrelimDraft
-%<!latex2e>\def\midrtitle{\ifPrelimDraft {{\tensl preliminary draft, \Now}}\fi}
-%<latex2e>\def\midrtitle{\ifPrelimDraft {\textsl{preliminary draft, \Now}}\fi}
+\def\midrtitle{\ifPrelimDraft {\textsl{preliminary draft, \Now}}\fi}
 %    \end{macrocode}
 %
 % \subsection{Ragged right and friends}
@@ -988,14 +994,8 @@
 % AMS-\TeX~--- the \LaTeXe{} version has \cs{leavevmode} and doesn't
 % care about surrounding space).
 %    \begin{macrocode}
-%<*!latex2e>
-\def\,{\relax\ifmmode\mskip\thinmuskip\else\thinspace\fi}
-\def~{\unskip\nobreak\ \ignorespaces}
-%</!latex2e>
-%<*latex2e>
 \DeclareRobustCommand{\nobreakspace}{%
   \unskip\nobreak\ \ignorespaces}
-%</latex2e>
 %    \end{macrocode}
 %
 % Plain \TeX{} defines \cs{newbox} as \cs{outer}.  We solemnly
@@ -1009,12 +1009,10 @@
 % perhaps not the place to conduct a serious debate\dots)
 %
 %    \begin{macrocode}
-%<!latex>\def\newbox{\alloc@4\box\chardef\insc@unt}
 \def\boxcs#1{\box\csname#1\endcsname}
 \def\setboxcs#1{\setbox\csname#1\endcsname}
 \def\newboxcs#1{\expandafter\newbox\csname#1\endcsname}
-%<!latex>\def\gobble#1{}
-%<latex>\let\gobble\@gobble
+\let\gobble\@gobble
 \def\vellipsis{%
   \leavevmode\kern0.5em
   \raise\p@\vbox{\baselineskip6\p@\vskip7\p@\hbox{.}\hbox{.}\hbox{.}}
@@ -1024,12 +1022,6 @@
 \def\Dag{\raise .6ex\hbox{$\scriptstyle\dagger$}}
 \def\careof{\leavevmode\hbox{\raise.75ex\hbox{c}\kern-.15em
                 /\kern-.125em\smash{\lower.3ex\hbox{o}}} \ignorespaces}
-%<*!latex2e>
-\def\sfrac#1/#2{\leavevmode\kern.1em
-        \raise.5ex\hbox{\the\scriptfont\z@ #1}\kern-.1em
-        /\kern-.15em\lower.25ex\hbox{\the\scriptfont\z@ #2}}
-%</!latex2e>
-%<*latex2e>
 \DeclareRobustCommand\sfrac[1]{\@ifnextchar/{\@sfrac{#1}}%
                                             {\@sfrac{#1}/}}
 \def\@sfrac#1/#2{\leavevmode\kern.1em\raise.5ex
@@ -1043,7 +1035,6 @@
   \ensuremath{\langle}\emph{#1}\ensuremath{\rangle}}
 \DeclareRobustCommand\env[1]{%
   \cs{begin}\texttt{\char`\{#1\char`\}}}
-%</latex2e>
 \def\thinskip{\hskip 0.16667em\relax}
 %    \end{macrocode}
 %
@@ -1078,9 +1069,9 @@
 \def\nth#1{%
     \def\reserved@a##1##2\@nil{\ifcat##1n%
            0%
-%<latex2e>   \let\reserved@b\ensuremath
+          \let\reserved@b\ensuremath
       \else##1##2%
-%<latex2e>   \let\reserved@b\relax
+          \let\reserved@b\relax
       \fi}%
     \TestCount=\reserved@a#1\@nil\relax
     \ifnum\TestCount <0 \multiply\TestCount by\m@ne \fi % subdue negatives
@@ -1091,18 +1082,6 @@
       \divide\T@stCount by 10 \multiply\T@stCount by 10
       \advance\TestCount by-\T@stCount   % n mod 10
     \fi
-%<*!latex2e>
-    \T@stCount=\the\fam\relax
-    $\fam\T@stCount#1^{\fam\T@stCount
-      \ifcase\TestCount th%    0th
-      \or   st%                1st
-      \or   nd%                2nd
-      \or   rd%                3rd
-      \else th%                nth
-      \fi
-     }$%
-%</!latex2e>
-%<*latex2e>
      \reserved@b{#1}%
        \textsuperscript{\ifcase\TestCount th%    0th
                         \or   st%                1st
@@ -1110,49 +1089,32 @@
                         \or   rd%                3rd
                         \else th%                nth
                         \fi}%
-%</latex2e>
-     }
+}
 %    \end{macrocode}
 %
 % \subsection{Reviews}
 %
 % Format information on reviewed items for book review articles.
-%    \begin{macrocode}
-%<*!latex2e>
-\def\Review:#1{\ifx[#1\@Rev[%
-  \else Book review:\enspace\sl #1%
-  \fi
-  }
-\def\@Rev[#1]{\ignorespaces#1\unskip:\enspace\ignorespaces\sl}
-%</!latex2e>
-%    \end{macrocode}
-%
 % For the \LaTeXe{} version, we follow Fairbairns' maxim, and define
 % something that can even look like a \LaTeX{} macro\dots
 %
 %    \begin{macrocode}
-%<*latex2e>
 \def\Review{\@ifnextchar:{\@Review}{\@Review:}}
 \def\@Review:{\@ifnextchar[%]
   {\@Rev}%
   {\@Rev[Book review]}}
 \def\@Rev[#1]#2{{\ignorespaces#1\unskip:\enspace\ignorespaces
                                         \slshape\mdseries#2}}
-%</latex2e>
-%<!latex2e>\def\reviewitem{%
-%<latex2e>\def\reviewitem{\addvspace{\BelowTitleSkip}%
+\def\reviewitem{\addvspace{\BelowTitleSkip}%
   \def\revauth##1{\def\therevauth{##1, }\ignorespaces}%
-%<!latex2e>  \def\revtitle##1{\def\therevtitle{{\sl##1}. }\ignorespaces}%
-%<latex2e>  \def\revtitle##1{\def\therevtitle{{\slshape##1}. }\ignorespaces}%
+  \def\revtitle##1{\def\therevtitle{{\slshape##1}. }\ignorespaces}%
   \def\revpubinfo##1{\def\therevpubinfo{##1.}\ignorespaces}%
-  }
+}
 \def\endreviewitem{{\noindent\interlinepenalty=10000
   \therevauth\therevtitle\therevpubinfo\endgraf}%
   \vskip\medskipamount
-%<!latex>\DeleteOptionalSpacesandPars{\noindent\ignorespaces}%
-  }
-%<!latex2e>\def\booktitle#1{{\sl #1\/}}
-%<latex2e>\def\booktitle#1{{\slshape#1\/}}
+}
+\def\booktitle#1{{\slshape#1\/}}
 %    \end{macrocode}
 %
 %  \subsection{Dates, volume and issue numbers, etc.}
@@ -1288,7 +1250,6 @@
 %
 %    \begin{macrocode}
 \def\TUBfilename#1#2{\expandafter\def\csname file@@#1\endcsname{#2}}
-%<*!latex2e>
 \newread\@altfilenames
 \def\@readFLN{\immediate\openin\@altfilenames=\jobname.fln
   \ifeof\@altfilenames\let\@result\relax\else
@@ -1297,9 +1258,8 @@
   \@result}
 \@readFLN
 \everyjob=\expandafter{\the\everyjob\@readFLN}
-%</!latex2e>
-%<latex2e>\InputIfFileExists{\jobname.fln}%
-%<latex2e>     {\TBInfo{Reading alternative file file \jobname.fln}}{}
+\InputIfFileExists{\jobname.fln}%
+     {\TBInfo{Reading alternative file file \jobname.fln}}{}
 %    \end{macrocode}
 %
 % The following needs to work entirely in \TeX's mouth
@@ -1365,21 +1325,31 @@
 % Some hyphenation exceptions:
 %
 %    \begin{macrocode}
-\hyphenation{Dijk-stra Eijk-hout Hara-lam-bous
-  Doc-Book Flor-i-da Ghost-script Ghost-view Open-Type Pfa-Edit
-  Post-Script True-Type
-  ap-pen-dix
-  bit-map bit-mapped bit-maps bool-ean
-  col-umns
+\hyphenation{Del-a-ware Dijk-stra Duane Eijk-hout
+  Flor-i-da Free-BSD Ghost-script Ghost-view
+  Hara-lam-bous Jac-kow-ski Karls-ruhe
+  Mac-OS Math-Sci-Net
+  Net-BSD Open-BSD Open-Office
+  Pfa-Edit Post-Script Rich-ard Skoup South-all
+  VM-ware Win-Edt 
+  acro-nym ap-pen-dix asyn-chro-nous
+  bit-map bit-mapped bit-maps buf-fer buf-fers bool-ean
+  col-umns cus-tom-iz-able
   data-base data-bases
+   de-riv-a-tive de-riv-a-tives de-riv-a-ble der-i-va-tion
   fall-ing
   half-way
+  key-note 
   long-est
   ma-gyar man-u-script man-u-scripts
-  over-view
-  par-a-digm par-a-digm-atic par-a-digms
+  off-line over-view
+  pal-ettes par-a-digm par-a-dig-mat-ic par-a-digms
+   pipe-line pipe-lines
+   plug-in plug-ins pro-gram-mable
   se-vere-ly spell-ing spell-ings stand-alone strong-est
+   sub-ex-pres-sion syn-chro-ni-city syn-chro-nous
   time-stamp time-stamped
+  vis-ual vis-ual-ly 
   which-ever white-space white-spaces wide-spread wrap-around
 }
 %<!latex>\restorecat\@
@@ -1416,13 +1386,9 @@
 \newdimen\headmargin    \headmargin=3.5pc
 %    \end{macrocode}
 %
-% If we're in \LaTeXe, |twoside| option is forced on when
+% In \LaTeXe, |twoside| option is forced on when
 % |article.cls| is loaded.
 %
-%    \begin{macrocode}
-%<!latex2e>\@twosidetrue
-%    \end{macrocode}
-%
 % \subsection{Messing about with the \LaTeX{} logo}
 % \label{sec:latex-logo}
 %
@@ -1445,13 +1411,16 @@
 \def\@LaTeX@default{{.36}{.15}}
 %    \end{macrocode}
 %
-% Three more defined in the initial version, for bold CM sans (which is
-% used as \cs{SecTitleFont}), and CM italic medium and bold:
+% More are defined in the initial version, for bold CM sans (which is
+% used as \cs{SecTitleFont}), and CM italic medium and bold, and
+% Bitstream Charter (which Nelson Beebe likes to use):
 %
 %    \begin{macrocode}
 \DeclareLaTeXLogo{cmss}{bx}n{.3}{.15}
 \DeclareLaTeXLogo{cmr}m{it}{.3}{.27}
 \DeclareLaTeXLogo{cmr}{bx}{it}{.3}{.27}
+\DeclareLaTeXLogo{bch}{m}{n}{.2}{.08}
+\DeclareLaTeXLogo{bch}{m}{it}{.2}{.08}
 %    \end{macrocode}
 %
 % Redefine \cs{LaTeX} to choose the parameters for the current font,
@@ -1755,19 +1724,9 @@
 % otherwise we write it out in all its horribleness.
 %
 %    \begin{macrocode}
-%<*latex2e>
 \newcommand\netaddress[1][\relax]{%
   \begingroup
   \def\@network{}%
-%</latex2e>
-%<*!latex2e>
-\def\netaddress{%
-  \begingroup
-  \def\@network{}%
-  \@ifnextchar[{\@netaddress}{\@netaddress[]}%]
-  }
-\def\@netaddress[#1]{%}
-%</!latex2e>
 %    \end{macrocode}
 %
 % Unfortunately, because of the catcode hackery, we have still to do
@@ -1788,19 +1747,11 @@
 %    \begin{macrocode}
 \def\@relay@netaddress#1{%
   \ProtectNetChars
-%<*!latex2e>
-  \expandafter\xdef\csname thenetaddress\number\authornumber\endcsname
-     {\leavevmode{\noexpand\rm\@network}%
-     {\noexpand\NetAddrChars\noexpand\net
-      \ignorespaces#1\unskip}}%
-%</!latex2e>
-%<*latex2e>
   \expandafter\protected@xdef
       \csname thenetaddress\number\authornumber\endcsname
     {\protect\leavevmode\textrm{\@network}%
      {\protect\NetAddrChars\net
       \ignorespaces#1\unskip}}%
-%</latex2e>
   \endgroup
   }
 %    \end{macrocode}
@@ -1820,12 +1771,6 @@
   \makeactive\.\makeactive\%\makeactive\/\@personalURL}%
 \def\@personalURL#1{%
   \ProtectNetChars
-%<*!latex2e>
-  \expandafter\xdef\csname thePersonalURL\number\authornumber\endcsname
-   {\noexpand\URLchars\noexpand\net
-    \ignorespaces#1\unskip}}%
-%</!latex2e>
-%<*latex2e>
   \expandafter\protected@xdef
     \csname thePersonalURL\number\authornumber\endcsname{%
       \protect\leavevmode
@@ -1834,7 +1779,6 @@
         \ignorespaces#1\unskip
       }%
     }%
-%</latex2e>
   \endgroup
   }
 %    \end{macrocode}
@@ -1879,43 +1823,26 @@
 %
 %    \begin{macrocode}
   \gdef\ProtectNetChars{*
-%<*!latex2e>
-    \def@{\noexpand@}*
-    \def%{\noexpand%}*
-    \def.{\noexpand.}*
-    \def/{\noexpand/}*
-%</!latex2e>
-%<*latex2e>
     \def@{\protect@}*
     \def%{\protect%}*
     \def.{\protect.}*
     \def/{\protect/}*
-%</latex2e>
     }
 }
 %    \end{macrocode}
 %
-% In \LaTeX2.09, there's no inhibition against simply saying the
-% following:
-%
-%    \begin{macrocode}
-%<!latex2e>\def\net{\tt}
-%    \end{macrocode}
-%
-%  \LaTeXe{}, on the other hand (in its wisdom), suppresses
+%  \LaTeXe{} (in its wisdom) suppresses
 %  \cs{DeclareOldFontCommand} when in compatibility mode, so that in
 %  that circumstance we need to use a declaration copied from
 %  |latex209.def| rather than the way we would normally do the thing
 %  (using the command \LaTeXe{} defines for the job).
 % 
 %    \begin{macrocode}
-%<*latex2e>
 \if@compatibility
   \DeclareRobustCommand\net{\normalfont\ttfamily\mathgroup\symtypewriter}
 \else
   \DeclareOldFontCommand{\net}{\ttfamily\upshape\mdseries}{\mathtt}
 \fi
-%</latex2e>
 \def\authorlist#1{\def\@author{#1}}
 \def\@author{\@defaultauthorlist}
 %    \end{macrocode}
@@ -1982,11 +1909,7 @@
 %    \begin{macrocode}
 \newdimen\stbaselineskip        \stbaselineskip=18\p@
 \newdimen\stfontheight
-%<*!latex2e>
-\setbox\T@stBox=\hbox{\sectitlefont O}
-\stfontheight=\ht\T@stBox
-%</!latex2e>
-%<latex2e> \settoheight{\stfontheight}{\sectitlefont O}
+\settoheight{\stfontheight}{\sectitlefont O}
 %    \end{macrocode}
 %
 % Declaring section titles; the conditional \cs{ifSecTitle} records
@@ -2152,16 +2075,9 @@
 % Dedications are ragged right, in italics.
 %
 %    \begin{macrocode}
-%<*!latex2e>
-\def\dedication{\bgroup\raggedright\let\MF=\slMF
-                       \noindent\it\ignorespaces}
-\def\enddedication{\endgraf\egroup\medskip}
-%</!latex2e>
-%<*latex2e>
 \newenvironment{dedication}%
   {\raggedright\noindent\itshape\ignorespaces}%
   {\endgraf\medskip}
-%</latex2e>
 %    \end{macrocode}
 %
 % The |abstract| and |longabstract| environments both use
@@ -2171,27 +2087,12 @@
 % ^^A \cs{@startsection}, to avoid a confusing warning.
 %
 %    \begin{macrocode}
-%<*!latex2e>
-\def\abstract{
-\section*{Abstract}
-}
-\def\endabstract{}
-%</!latex2e>
-%<*latex2e>
 \renewenvironment{abstract}%
   {%
     \begin{SafeSection}%
     \section*{Abstract}%
   }%
   {\end{SafeSection}}
-%</latex2e>
-%<*!latex2e>
-\def\longabstract{
-  \section*{Abstract}
-  \bgroup\small}
-\def\endlongabstract{\endgraf\egroup
-%</!latex2e>
-%<*latex2e>
 \newenvironment{longabstract}%
   {%
     \begin{SafeSection}%
@@ -2201,7 +2102,6 @@
   {%
     \endgraf\egroup
     \end{SafeSection}%
-%</latex2e>
   \vspace{.25\baselineskip}
   \begin{center}
     {$--*--$}
@@ -2210,10 +2110,11 @@
 %    \end{macrocode}
 %
 % \subsection{Headings}
-%
-%  Redefine style of section headings to match \TUB{}'s defined styles.
-%  |\vskip 8pt| \penalty0|\vskip\parskip| before; |\vskip 4pt| after.
-%  Negative beforeskip suppresses following parindent.
+% 
+%  Redefine style of section headings for \TUB: |\vskip 8pt| |plus2pt|
+%  |minus2pt| \penalty0|\vskip\parskip| before; |\vskip 4pt plus.5pt|
+%  after. Negative beforeskip suppresses following parindent.  (So
+%  negate the stretch and shrinktoo).
 %
 %  These macros are called \cs{*head} in the plain styles.
 %
@@ -2230,20 +2131,20 @@
   \def\section{\TB@startsection{{section}%
                                 1%
                                 \z@
-                                {-8\p@}%
-                                {4\p@}%
+                                {-8\p@\@plus-2\p@\@minus-2\p@}%
+                                {4\p@\@plus.5\p@}%
           {\normalsize\bf\raggedright\hyphenpenalty=\@M}}}
   \def\subsection{\TB@startsection{{subsection}%
                                    2%
                                    \z@
-                                   {-8\p@}%
-                                   {4\p@}%
+                                   {-8\p@\@plus-2\p@\@minus-2\p@}%
+                                   {4\p@\@plus.5\p@}%
           {\normalsize\bf\raggedright\hyphenpenalty=\@M}}}
   \def\subsubsection{\TB@startsection{{subsubsection}%
                                       3%
                                       \z@
-                                      {-8\p@}%
-                                      {4\p@}%
+                                      {-8\p@\@plus-2\p@\@minus-2\p@}%
+                                      {4\p@\@plus.5\p@}%
           {\normalsize\bf\raggedright\hyphenpenalty=\@M}}}
   \def\paragraph{\TB@startsection{{paragraph}%
                                   4%
@@ -2263,36 +2164,44 @@
                \TB@startsection{{section}%
                                 1%
                                 \z@
-                                {-8\p@}%
-                                {4\p@}%
+                                {-8\p@\@plus-2\p@\@minus-2\p@}%
+                                {4\p@\@plus.5\p@}%
           {\normalsize\bf\raggedright\hyphenpenalty=\@M}}}
   \def\subsection{\TB@nolimelabel
                   \TB@startsection{{subsection}%
                                    2%
                                    \z@
-                                   {-8\p@}%
+                                   {-8\p@\@plus-2\p@\@minus-2\p@}%
                                    {-0.5em\@plus-\fontdimen3\font}%
           {\normalsize\bf\raggedright\hyphenpenalty=\@M}}}
   \def\subsubsection{\TB@nolimelabel
                      \TB@startsection{{subsubsection}%
                                       3%
                                       \parindent
-                                      {-8\p@}%
+                                      {-8\p@\@plus-2\p@\@minus-2\p@}%
                                       {-0.5em\@plus-\fontdimen3\font}%
           {\normalsize\bf\raggedright\hyphenpenalty=\@M}}}
 \fi
 %    \end{macrocode}
 %
 % \cs{TB@startsection} traps \verb"*" versions of sectioning
-% commands.  Its argument is the complete set of \cs{@startsection}
-% arguments.
+% commands, if numbering isn't in effect.  Its argument is the
+% complete set of \cs{@startsection} arguments.
 %
 %    \begin{macrocode}
-\def\TB@startsection#1{\@ifstar
-  {\TBWarning{*-form of \expandafter\string\csname\@firstofsix#1%
-              \endcsname\space inappropriate}%
-   \@startsection#1}%
-  {\@startsection#1}}
+\if@numbersec
+  \def\TB@startsection#1{\@startsection#1}%
+\else
+  \def\TB@startsection#1{%
+    \@ifstar
+      {\TBWarning{*-form of \expandafter\string\csname\@firstofsix#1%
+                  \endcsname\space
+                  \MessageBreak
+                  conflicts with nonumber class option}%
+       \@startsection#1}%
+      {\@startsection#1}%
+  }
+\fi
 \def\@firstofsix#1#2#3#4#5#6{#1}
 %    \end{macrocode}
 %
@@ -2513,15 +2422,17 @@
 % \subsection{Float captions}
 %
 % By analogy with what we've just done to section titles and the like,
-% we now do our best to discourage hyphenation within captions.
+% we now do our best to discourage hyphenation within captions.  We also
+% typeset them in \cs{small}.
 %
 %    \begin{macrocode}
-\long\def\@makecaption#1#2{%
+\def\@makecaption#1#2{%
   \vskip\abovecaptionskip
-  \sbox\@tempboxa{#1: #2}%
+  \def\@makecaptiontext{\small \parindent=1em\noindent #1: #2}%
+  \setbox\@tempboxa=\vbox{\@makecaptiontext\par}%
   \ifdim \wd\@tempboxa >\hsize
     \raggedright\hyphenpenalty=\@M
-    #1: #2\par
+    \@makecaptiontext
   \else
     \global \@minipagefalse
     \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
@@ -2681,7 +2592,7 @@
 %    \end{macrocode}
 %
 % To end the environment, we do everything in reverse order: relay via
-% the copy we made of \cs{endveratim}, and then finish off the option
+% the copy we made of \cs{endverbatim}, and then finish off the option
 % changes (again \cs{ruled} only, so far).
 %
 %    \begin{macrocode}
@@ -2966,9 +2877,7 @@
 % \subsection{Running heads}
 %
 %    \begin{macrocode}
-%<!latex2e>\def \rtitlex{\def\tubfont{\normalsize\rm}\TUB, \volx }
-%<latex2e>\def \rtitlex{\def\texttub##1{{\normalsize\textrm{##1}}}\TUB, \volx }
-
+\def \rtitlex{\def\texttub##1{{\normalsize\textrm{##1}}}\TUB, \volx }
 \def\PrelimDraftfooter{%
   \dlap{\kern\textheight\kern3pc
         \rlap{\hb@xt@\pagewd{\midrtitle\hfil\midrtitle}}
@@ -3025,6 +2934,7 @@
 \newif\ifFirstPar       \FirstParfalse
 \def\smc{\sc}
 \def\ninepoint{\small}
+%</classtail>
 %    \end{macrocode}
 %
 % \cs{SMC} \emph{isn't} small caps~--- Barbara Beeton says she thinks
@@ -3049,14 +2959,12 @@
 % We define this in terms of the memory of the size currently selected
 % that's maintained in \cs{@currsize}: if the user does something
 % silly re.~selecting fonts, we'll get the wrong results.  The
-% following code is adapted from |relsize.sty| by Donald Arseneau and
-% Matt Swift, from a 2.09 original by Bernie Cosell.  (Note that the
+% following code is adapted from an old version of |relsize.sty| by
+% Donald Arseneau and Matt Swift.   (Note that the
 % order of examination of \cs{@currsize} is to get the commonest cases
 % out of the way first.)
 %    \begin{macrocode}
-%<!latex2e>\def\SMC{\small}
-%<*latex>
-%<*latex2e>
+%<*common>
 \DeclareRobustCommand\SMC{%
   \ifx\@currsize\normalsize\small\else
    \ifx\@currsize\small\footnotesize\else
@@ -3071,7 +2979,7 @@
             \small\SMC@unknown@warning
  \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
 }
-\newcommand\SMC@unknown@warning{\TBWarning{\string\SMC: unrecognised
+\newcommand\SMC@unknown@warning{\TBWarning{\string\SMC: nonstandard
     text font size command -- using \string\small}}
 \newcommand\textSMC[1]{{\SMC #1}}
 %    \end{macrocode}
@@ -3082,10 +2990,7 @@
 %
 %    \begin{macrocode}
 \newcommand\acro[1]{\textSMC{#1}\@}
-%</latex2e>
-%<!latex2e>\def\acro#1{{\SMC #1}\@}
-%</latex>
-%<!latex>\def\acro#1{{\SMC #1}\spacefactor\@m}
+%</common>
 %    \end{macrocode}
 %
 % \subsection{Miscellaneous definitions}
@@ -3096,6 +3001,7 @@
 % (Yes, it really is!)
 %
 %    \begin{macrocode}
+%<*classtail>
 \def\xEdNote{{\EdNoteFont Editor's note:\enspace }}
 \def \EdNote{\@ifnextchar[%]
   {%
@@ -3145,7 +3051,7 @@
 %% }
 
 
-\def\fnum@figure{{\bf Figure \thefigure}}
+\def\fnum@figure{{\small\bf Figure \thefigure}}
 %    \end{macrocode}
 %
 % \subsection{Initialization}
@@ -3303,20 +3209,20 @@
 %    \end{macrocode}
 %
 % Check that this is a ``sensible year'' (one for which we have a
-% class option defined).  If not, make it the `most recent year we
-% know about'.
+% class option defined).  If not, make it a `suitable' year, in
+% particular, one that allows numbering sections.
 %    \begin{macrocode}
 \expandafter\ifx\csname ds@tug\tugProcYear\endcsname\relax
   \def\tugProcYear{2002}\fi
 %    \end{macrocode}
 % \end{macro}
-%
-% Now execute the default `year' option, and the default
-% \textsf{nonumber} option and get on with processing.  Note that this
-% command gets ignored if the configuration file specifies a silly year.
+% 
+% Now execute the default `year' option and get on with processing.
+% Note that this command gets ignored if the configuration file
+% specifies a silly year. 
 %
 %    \begin{macrocode}
-\ExecuteOptions{nonumber,tug\tugProcYear,title\TUGprocExtraOptions}
+\ExecuteOptions{tug\tugProcYear,title\TUGprocExtraOptions}
 \ProcessOptions
 \if@proc@numbersec
   \if@proc@numerable
@@ -3339,7 +3245,7 @@
 % \begin{macro}{\ifTB@madetitle}
 % There's no provision for `section titles' in proceedings issues, as
 % there are in \TUB{} proper.  Note the tedious \LaTeX{} bug-avoidance
-% in the \cs{@TB@test@document} macro
+% in the \cs{@TB@test@document} macro.
 %
 %    \begin{macrocode}
 \def\maketitle{%
@@ -3390,7 +3296,6 @@
 % \cs{@TB@test@document} checks to see, at entry to \cs{maketitle}, if
 % we've had \verb:\begin{document}:.  See \LaTeX{} bug report latex/2212,
 % submitted by Robin Fairbairns, for details.
-%
 %    \begin{macrocode}
 \def\@TB@test@document{%
   \edef\@tempa{\the\everypar}
@@ -3407,7 +3312,6 @@
 % \begin{macro}{\addressfont}
 % \begin{macro}{\netaddrfont}
 % Define the fonts for titles and things
-%
 %    \begin{macrocode}
 \def\AUTHORfont {\large\rmfamily\mdseries\upshape}
 \def\TITLEfont  {\Large\rmfamily\mdseries\upshape}
@@ -3419,9 +3323,21 @@
 % \end{macro}
 % \end{macro}
 %
+% \begin{macro}{\aboveauthorskip}
+% \begin{macro}{\belowauthorskip}
+% \begin{macro}{\belowabstractskip}
+% Some stretchable stuff to permit variability in page layout.
+%    \begin{macrocode}
+\newskip\aboveauthorskip   \aboveauthorskip=18\p@ \@plus4\p@
+\newskip\belowauthorskip   \belowauthorskip=\aboveauthorskip
+\newskip\belowabstractskip \belowabstractskip=14\p@ \@plus3\p@ \@minus2\p@
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+% \end{macro}
+%
 % \begin{macro}{\@maketitle}
 % The body of \cs{maketitle}
-%
 %    \begin{macrocode}
 \def\@maketitle{%
    {\parskip\z@
@@ -3429,19 +3345,20 @@
       \count@=0
       \loop
       \ifnum\count@<\authornumber
-        \vskip20\p@
+        \vskip\aboveauthorskip
         \advance\count@\@ne
         {\AUTHORfont\theauthor{\number\count@}\endgraf}%
         \addressfont\theaddress{\number\count@}\endgraf
         {%
           \allowhyphens
           \hangindent1.5pc
+          \frenchspacing
           \netaddrfont\thenetaddress{\number\count@}\endgraf
           \hangindent1.5pc
           \thePersonalURL{\number\count@}\endgraf
         }%
       \repeat
-   \vskip20\p@}%
+   \vskip\belowauthorskip}%
    \if@abstract
       \centerline{\bfseries Abstract}%
       \vskip.5\baselineskip\rmfamily
@@ -3451,7 +3368,7 @@
             \the\abstract@toks
       \endlist\global\@ignoretrue
    \fi
-   \vskip1pc
+   \vskip\belowabstractskip
    \global\@afterindentfalse\aftergroup\@afterheading
   }
 %    \end{macrocode}
@@ -3566,6 +3483,30 @@
 % \end{macro}
 % \end{environment}
 %
+% \begin{macro}{\creditfootnote}
+% \begin{macro}{\supportfootnote}
+% Sometimes we want the label ``Editor's Note:'', sometimes not.
+% 
+%    \begin{macrocode}
+\def\creditfootnote{\nomarkfootnote\xEdNote}
+\def\supportfootnote{\nomarkfootnote\relax}
+%    \end{macrocode}
+%
+% General macro \cs{nomarkfootnote} to make a footnote without a
+% reference mark, etc.  |#1| is an extra command to insert, |#2| the
+% user's text.
+%    \begin{macrocode}
+\gdef\nomarkfootnote#1#2{\begingroup
+  \def\thefootnote{}%
+  % no period, please, also no fnmark.
+  \def\@makefntext##1{##1}%
+  \footnotetext{\noindent #1#2}%
+  \endgroup
+}
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
 % \begin{macro}{\makesignature}
 % \cs{makesignature} is improper in proceedings, so we replace it with a
 % warning (and a no-op otherwise)
@@ -3669,11 +3610,12 @@
 % \end{macro}
 %
 % \subsection{Section divisions}
-%
-% Neither sections nor subsections are numbered in the proceedings
-% style: note that this puts a degree of stress on authors' natural
-% tendency to reference sections, which is a matter that needs
-% attention.
+% 
+% Neither sections nor subsections are numbered by default in the
+% proceedings style: note that this puts a degree of stress on authors'
+% natural tendency to reference sections, which is a matter that needs
+% attention.  The class option \textsc{numbersec} once again numbers the
+% sections (and noticeably changes the layout).
 % 
 %    \begin{macrocode}
 \if@proc@numbersec