From db7c29b795e61406c9a9fc1b6353694c3268774a Mon Sep 17 00:00:00 2001
From: Karl Berry <karl@freefriends.org>
Date: Tue, 3 Apr 2007 00:14:46 +0000
Subject: new latex package bullcntr (11feb07)

git-svn-id: svn://tug.org/texlive/trunk@4104 c570f23f-e606-0410-a88d-b1316a301751
---
 .../texmf-dist/source/latex/bullcntr/bullcntr.dtx  | 1661 ++++++++++++++++++++
 1 file changed, 1661 insertions(+)
 create mode 100644 Master/texmf-dist/source/latex/bullcntr/bullcntr.dtx

(limited to 'Master/texmf-dist/source/latex/bullcntr/bullcntr.dtx')

diff --git a/Master/texmf-dist/source/latex/bullcntr/bullcntr.dtx b/Master/texmf-dist/source/latex/bullcntr/bullcntr.dtx
new file mode 100644
index 00000000000..d8f14653cc1
--- /dev/null
+++ b/Master/texmf-dist/source/latex/bullcntr/bullcntr.dtx
@@ -0,0 +1,1661 @@
+% \iffalse
+%   (This is a META-COMMENT.)
+%
+%   This is file `bullcntr.dtx'.
+%
+%   This file is part of a work named "bullcntr package".
+%
+%   Copyright (C) 2007 by Gustavo MEZZETTI <gustavo.mezzetti@istruzione.it>.
+%
+%   This file 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 2005/12/01 or later.
+%
+%   The bullcntr package has the LPPL maintenance status
+%     "author-maintained".
+%
+%   The file `manifest.txt' that comes along with this file specifies
+%   what the bullcntr package consists of; more precisely, it explains
+%   how the locutions "Work" and "Compiled Work", used in the LaTeX
+%   Project Public License, are to be interpreted in the case of this
+%   work.
+%
+%   Note that the distribution of this file alone is "distribution of
+%   only part of the Work" in the sense of the LaTeX Project Public
+%   License, and should be avoided (see the LaTeX Project Public
+%   Licence for details).
+%
+%   (End of the META-COMMENT.)
+% \fi
+%
+% \def\filename{bullcntr.dtx}
+% \def\fileversion{0.04}
+% \def\filedate{2007/04/02}
+% \def\docdate {2007/04/02}
+% \def\doclongdate{April~2, 2007}
+%
+% \CheckSum{328}
+%
+% \changes{0.01}{2007 Feb 07}{First provisional writing of the code}
+% \changes{0.02}{2007 Feb 08}{Modified layout of bullets for the
+%   value~4}
+% \changes{0.03}{2007 Feb 16}{Introduced declarations for the four
+%   predefined bullet styles (\protect\cmnd{smartctrbull} and
+%   siblings)}
+% \changes{0.03}{2007 Feb 16}{Introduced options corresponding to the
+%   declarations for the four predefined bullet styles
+%   (\protect\opt{smartctrbull} and siblings)}
+% \changes{0.03}{2007 Feb 16}{Developed the
+%   \protect\packlass{\protect\bullenum} subsidiary package defining
+%   the \protect\env{bullenum} environment}
+% \changes{0.03}{2007 Feb 16}{Thoroughly reorganized the code to
+%   correct a serious bug regarding labels and references}
+%
+%% \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         \~}
+%
+% \MakeShortVerb{\"}
+% \DeleteShortVerb{\|}
+%
+% \DoNotIndex{\begin,\end,\def,\let,\else,\fi,\or,\@ifdefinable,\@empty}
+% \DoNotIndex{\newcommand,\renewcommand}
+% \DoNotIndex{\newenvironment,\renewenvironment}
+% \DoNotIndex{\z@,\z@skip,\p@,\@ne,\tw@,\thr@@,\@m,\@M,\m@ne}
+% \DoNotIndex{\DeclareOption}
+%
+% \IndexPrologue{
+%   \section{\indexname}
+%   Numbers in italics refer to the page where the corresponding entry
+%   is described, the ones underlined to the code line of the
+%   definition, the rest to the code lines where the entry is used.
+% }
+% \setcounter{IndexColumns}{2}
+%
+% \GlossaryPrologue{\section{Change History}}
+%
+% \setcounter{StandardModuleDepth}{1}
+%
+% \newcommand*{\DS}{\textsf{DocStrip}}
+% \renewcommand*{\partname}{Part}
+% \newcommand*{\bullcntr}{bullcntr}
+% \newcommand*{\bullenum}{bullenum}
+% \makeatletter
+% \newcommand*{\myspecialindex}[2]
+%    {\special@index{#1\actualchar#2\encapchar main}}
+% \makeatother
+% \newcommand*{\counterindex}[1]{\myspecialindex{#1}{{\string\ttfamily
+%    \space #1} (counter)}\index{counters:\levelchar{\protect\ttfamily
+%    #1}\encapchar usage}}
+% \newcommand*{\optuseindex}[1]{\SortIndex{#1}{\protect\opt{#1}
+%    (option)\encapchar usage}\index{options:\levelchar
+%    \protect\opt{#1}\encapchar usage}}
+% \DeclareRobustCommand*{\opt}[1]{{\normalfont\ttfamily #1}}
+% \newcommand*{\sopt}[1]{\mbox{\opt{#1}}\optuseindex{#1}}
+% \DeclareRobustCommand*{\packlass}[1]{{\normalfont\sffamily #1}}
+% \DeclareRobustCommand*{\filedir}[1]{{\normalfont\ttfamily #1}}
+% \DeclareRobustCommand*{\env}[1]{{\normalfont\ttfamily #1}}
+% \DeclareRobustCommand*{\ctr}[1]{{\normalfont\ttfamily #1}}
+% \DeclareRobustCommand*{\cmnd}[1]{\texttt{\bslash #1}}
+% \newcommand*{\circnumb}[1]{%
+%   \makebox[.6666667em]{\makebox[0pt]{$\bigcirc$}\makebox[0pt]{\small #1}}%
+% }
+%
+% \newcommand*{\oMr}{.13397460}
+% \newcommand*{\oPr}{1.8660254}
+%
+%
+%
+% \title{
+%    The \packlass{\bullcntr} package\thanks{This file has version
+%    \fileversion, release date \filedate;
+%    last documentation update: \docdate.
+%    Copyright \copyright~2007 by G.~Mezzetti
+%    (see page~\pageref{S:Copy}).}
+% }
+% \author{G. Mezzetti}
+% \date{\doclongdate}
+%
+% \maketitle
+%
+% \begin{abstract}
+%    This document describes a \LaTeX\ (former \LaTeXe) package that
+%    defines a new command, similar to "\fnsymbol", for displaying the
+%    value of a counter: this command typesets a number of bullets
+%    equal to the value of the counter, in a nice arrangement.  The
+%    value of the counter must lie between 1 and~9.
+%
+%    An ancillary package, named \env{\bullenum}, defines an
+%    environment, similar to \env{enumerate}, that produces lists
+%    whose items are numbered in this way.
+% \end{abstract}
+%
+% \tableofcontents
+% \listoffigures
+%
+% \clearpage
+% \begingroup
+%
+%    \setlength{\parskip}{\medskipamount}
+%    \setlength{\parindent}{0pt}
+%
+% \section*{Copyright notice}
+%    \label{S:Copy}
+%    \vspace{-\parskip}
+%
+%    Copyright \copyright~2007 by Gustavo \textsc{Mezzetti}.
+%    All rights are reserved, except as noted below.
+%
+%    This document has been produced by feeding to a \LaTeX\
+%    typesetting engine the file \filedir{\filename} version
+%    \fileversion\ (\docdate).  This file is part of a work named
+%    ``\packlass{\bullcntr} package'', and may distributed and/or
+%    modified only as a part thereof.  Subsection~\ref{sS:License} on
+%    page~\pageref{sS:License} explains the conditions under which the
+%    \packlass{\bullcntr} package may be distributed and/or modified.
+%
+%    The \packlass{\bullcntr} package has the LPPL maintenance status
+%    ``author-maintained''.
+%
+%    Permission is granted to make new printed copies of this document,
+%    by any means (\emph{e.g.}, photocopying, direct printing from the
+%    electronic version, and so on).
+%
+%    Note, though, that distribution of this document alone is
+%    ``distribution of only part of the Work'' in the sense of the
+%    \LaTeX\ Project Public License, and should therefore be avoided:
+%    please distribute, in addition, the source file
+%    \filedir{\bullcntr.dtx} together with all other files listed in
+%    \filedir{manifest.txt}, as explained as well in
+%    Subsection~\ref{sS:License} and in the file
+%    \filedir{manifest.txt} itself.
+%
+% \section*{Author's addresses}
+%    \vspace{-\parskip}
+%
+%    The recommended way to contact the author is by e-mail; his address is:
+%
+%    \begin{list}{\setlength{\topsep}{0pt}}\item\relax
+%      \ttfamily
+%      gustavo.mezzetti@istruzione.it
+%    \end{list}
+%
+%    Please include the \emph{exact} phrase \verb*|bullcntr package| in the
+%    \emph{subject} of your message; otherwise, your message could be
+%    thrown away by a mail filter.  In this regard, the weakness of the
+%    laws concerning the protection of privacy forces me to explicitly
+%    forbid the use of the above address for any kind of advertising,
+%    marketing, polling, or similar commercial or statistical contact.
+%
+%    If you have no e-mail access, write to:
+%
+%    \begin{list}{\setlength{\topsep}{0pt}}\item\relax
+%      Gustavo \textsc{Mezzetti}\\
+%      L.~A.~S. ``A.~Modigliani''\\
+%      Via E.~Degli Scrovegni, 30\\
+%      I--35121\quad PADOVA\quad PD\\
+%      Italy
+%    \end{list}
+%
+% \endgroup
+%
+%
+%
+% \setcounter{secnumdepth}{0}
+%
+%
+%
+% \clearpage
+% \section{Introduction}
+%
+%    I can't remember exactly where the idea of this package arose
+%    from, but I am pretty sure that the first time I saw a list of
+%    items numbered with an increasing number of bullets was in
+%    certain handwritten notes concerning sheaves cohomology, may be a
+%    decade or so ago.  Since then, I had repeatedly thought of
+%    writing a \LaTeX\ package to implement this kind of numbering,
+%    but I had never resolved to do so, until very recently, when I
+%    ^^A ( paren match
+%    suddenly decided to sit down and write the code!~:-)
+%
+%    Regrettably, shortly after I~uploaded version 0.02 of the package
+%    to the CTAN, I~had to discover a major bug in the macros I~had
+%    dashed off in such a haste, which required an extensive (and more
+%    careful!)\ redesign of the code.  I~took this opportunity to
+%    thoroughly reorganize it, making it easier, for the user, to
+%    switch from one style of bullets to another, and also adding an
+%    ancillary package that simplified the creation of lists numbered
+%    with bullets.  This led to version 0.03.
+%
+%    You are now reading the source of version 0.04, which corrects
+%    another pretty serious bug brought in---alas---with the
+%    modifications introduced in version 0.03: the "\@b@ll@@cntr"
+%    macro, called by the "\bullcntr" command, behaved erroneously
+%    when invoked with a value of the counter equal to zero.
+%
+%    Since I~had to repackage the distribution, I~also decided to
+%    include, along with the other files, a couple of \LaTeX\ sources
+%    that illustrate in practice the use of the
+%    \packlass{\bullcntr}\slash \packlass{\bullenum} packages, and
+%    also the \LaTeX\ source of the user manual, that is, of the file
+%    previously offered on the CTAN\@ sites under the name
+%    \filedir{overview.pdf}; this file has now the base name
+%    \filedir{bullcntr-man}, to make it more easily searchable, and
+%    has been turned into a required part of the \packlass{\bullcntr}
+%    package.  In doing all this, I~met some suggestions given me by
+%    the people at CTAN\@.
+%
+%    \subsection{Disclaimer}
+%
+%    Although a \LaTeX\ package is a piece of software that executes in a
+%    rather protected environment and should therefore be relatively
+%    incapable of doing serious damages, no warranty is given, as usual with
+%    computer software, that this code will work properly, or even that it
+%    will work at all.  To be on the safe side, be aware that using this
+%    code can even result in loss of data and/or damages to your disks and
+%    your storage media.  If you use this code, you do so exclusively at
+%    your own risk!
+%
+%    See Subsection~\ref{sS:License} and the \LaTeX\ Project Public
+%    License for more information.
+%
+%    \subsection{About this document}
+%
+%    This document, like many documentation files distributed for
+%    \LaTeX, is divided into two parts.
+%
+%    The first part, \emph{User's Manual}, contains all the documentation
+%    you need to succesfully \emph{use} the package that this document
+%    presents.  Every user of the \packlass{\bullcntr} package will
+%    probably want to read this part.
+%
+%    The second part, \emph{Implementation}, can be omitted if you
+%    want (explanations on how to omit it are given at the beginning
+%    of the part itself), and contains information that concerns only
+%    ``hackers'' who want to learn how the package that this document
+%    presents is \emph{implemented}.  Actually, this part contains the
+%    complete listing of the \LaTeX\ code that implements the macros,
+%    in the usual \DS\ format; if you are not a \LaTeX\ hacker, this
+%    part will probably have little meaning to you.
+%
+%
+%
+% \setcounter{secnumdepth}{3}
+%
+%
+%
+% \clearpage
+% \part{User's Manual}
+%
+% \section{About this part}
+%
+%    This part contains detailed instructions on how to install the
+%    \packlass{\bullcntr} package, how to use it, and how to generate
+%    this documentation.  Note that including in this document the
+%    instructions on how to generate the document itself may seem
+%    pretty useless, but actually isn't: you might be reading a copy
+%    obtained from some other source.
+%
+% \section{Installing the \packlass{\bullcntr} package and generating this manual}
+%
+%    As usual for \LaTeX\ distributions, the \packlass{\bullcntr}
+%    package is distributed in the form of a \filedir{.dtx} file,
+%    namely \filedir{\bullcntr.dtx}, and an accompanying
+%    \filedir{.ins} file, namely \filedir{\bullcntr.ins}.
+%
+%    \subsection{Installation}
+%
+%    To install the package, run \LaTeX\ (or Plain \TeX) once on the
+%    file \filedir{\bullcntr.ins}.  This will generate the following
+%    two \LaTeX\ input files:
+%    \begin{quote}
+%      \ttfamily
+%      \bullcntr.sty\\
+%      \bullenum.sty
+%    \end{quote}
+%    To finish the installation, move them into a \LaTeX\ input
+%    directory.  The above listing of the files you need to move is
+%    also displayed on the terminal at the end of the run of the file
+%    \filedir{\bullcntr.ins}.  The documentation of your \TeX\
+%    installation should tell you how to find the \LaTeX\ input
+%    directory/ies, and probably also how to create new \LaTeX\ input
+%    directories reserved to contain your private classes and
+%    packages.  If your \TeX\ installation offers you the chance of
+%    defining your private \LaTeX\ input directories, I recommend you
+%    exploit this possibility and place the generated files into such
+%    a directory.
+%
+%    Please note that before using the \packlass{\bullcntr} package
+%    you must read the license (see Subsection~\ref{sS:License}) to
+%    see whether its terms are acceptable for you, especially for what
+%    concerns the lack of any warranty; if they are not, don't use
+%    this program.
+%
+%    \subsection{Documentation}
+%
+%    To produce this documentation, run \LaTeX\ three times (for the
+%    table of contents to be correct) on the file
+%    \filedir{\bullcntr.dtx}.  This won't produce the index and the
+%    change history, however: for those, you have to run
+%    \emph{MakeIndex} on the files \filedir{\bullcntr.idx} and
+%    \filedir{\bullcntr.glo}, produced during the last of the
+%    aforesaid three \LaTeX\ runs, with the styles \filedir{gind.ist}
+%    and \filedir{gglo.ist}, respectively (these styles are part of
+%    the standard \LaTeX\ distribution); then pass
+%    \filedir{\bullcntr.dtx} through \LaTeX\ twice more.
+%
+%    The documentation produced by default includes the
+%    \emph{Implementation} part too; see the beginning of this part
+%    for instructions on how to omit it.
+%
+%    \subsection{License}
+%    \label{sS:License}
+%
+%    The \packlass{\bullcntr} package is \emph{not} in the public
+%    domain: its author, Gustavo \textsc{Mezzetti}, owns the
+%    copyright, and in general retains all the rights therein; but as
+%    a special exception, the author grants you the permissions
+%    indicated below.
+%
+%    \subsubsection{Distribution and/or modification}
+%
+%    The \packlass{\bullcntr} package 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
+%    \begin{quote}
+%      \ttfamily
+%      http://www.latex-project.org/lppl.txt
+%    \end{quote}
+%    and version~1.3 or later is part of all distributions of \LaTeX\
+%    version 2005/12/01 or later.
+%
+%    The \packlass{\bullcntr} package has the LPPL maintenance status
+%    ``author-maintained''.
+%
+%    The file \filedir{manifest.txt} included along with this file
+%    specifies what the \packlass{\bullcntr} package consists of; more
+%    precisely, it explains how the locutions ``Work'' and ``Compiled
+%    Work'', used in the \LaTeX\ Project Public License, are to be
+%    interpreted in the case of this work.
+%
+%    \subsubsection{Use}
+%
+%    The use of the \packlass{\bullcntr} package is unrestricted,
+%    provided that you accept the terms and conditions of the \LaTeX\
+%    Project Public License and of the following subsection for what
+%    concerns the absence of any warranty.
+%
+%    \subsubsection{No warranty}
+%
+%    There is absolutely no warranty for the \packlass{\bullcntr}
+%    package.  The Copyright Holder provides the \packlass{\bullcntr}
+%    package ``as is'', without warranty of any kind, either expressed
+%    or implied, including, but not limited to, the implied warranties
+%    of merchantability and fitness for a particular purpose.  The
+%    entire risk as to the quality and performance of the
+%    \packlass{\bullcntr} package is with you.  Should the
+%    \packlass{\bullcntr} package prove defective, you assume the cost
+%    of all necessary servicing, repair, or correction.
+%
+%    In no event will The Copyright Holder, or any other party who may
+%    distribute and/or modify the \packlass{\bullcntr} package as
+%    permitted by the \LaTeX\ Project Public License, be liable to you
+%    for damages, including any general, special, incidental or
+%    consequential damages arising out of any use of the
+%    \packlass{\bullcntr} package or out of inability to use it
+%    (including, but not limited to, loss of data, data being rendered
+%    inaccurate, or losses sustained by anyone as a result of any
+%    failure of the \packlass{\bullcntr} package to operate with any
+%    other programs), even if The Copyright Holder or said other party
+%    has been advised of the possibility of such damages.
+%
+%    \subsection{Your comments}
+%
+%    If you have comments, suggestions, etc.\ about the
+%    \packlass{\bullcntr} package, please let me know them: I'll be
+%    happy to read what you think.  A point that especially bothers me
+%    is the difficulty of choosing the ``right'' character for the
+%    bullets: "\textbullet" seems too big, while "\textperiodcentered"
+%    looks far too small, at least for me.  But let me know your
+%    opinion!
+%
+% \section{How to use the \packlass{\bullcntr} package}
+% \label{S:UsageCntr}
+%
+%    The main purpose of the \packlass{\bullcntr} package is just to
+%    define the command "\bullcntr" for displaying the value of a
+%    counter.  This command is analogous to "\fnsymbol": it works only
+%    if the value of the counter to print lies between 1 and~9
+%    (inclusive), and displays this value using a pleasant arrangement
+%    of bullets (whence the name).  The patterns used to display the
+%    values from 1 to~9 are shown in fig.~\ref{fig:patterns}; of
+%    course, the grid lines shown in this picture are not drawn by the
+%    "\bullcntr" command.  See fig.~\ref{fig:dimens}, in
+%    Subsection~\ref{sS:MainCode}, for a definition of the exact
+%    proportions of this grid; here it suffices to state that the
+%    triangle in Three is exactly equilateral, and that the hexagon in
+%    Six and Seven is perfectly regular.  As it will be explained
+%    below, you can control what characters are drawn in the positions
+%    defined by the above patterns (not only bullets, but, for
+%    instance, hearts).
+%
+%    \begin{figure}[tbp]
+%      \newcommand*{\bullgrid}[1]{^^A
+%        \linethickness{.2pt}^^A
+%        \multiput(0,0)(.5,0){5}{\line(0,1){2}}^^A
+%        \multiput(0,0)(0,1){3}{\line(1,0){2}}^^A
+%        \put(0,\oMr){\line(1,0){2}}^^A
+%        \put(0,\oPr){\line(1,0){2}}^^A
+%        \put(1,-.1){\makebox(0,0)[t]{\strut #1}}^^A
+%      }
+%      \newcommand*{\bullbull}[2]{^^A
+%        \put(#1,#2){\circle*{.2}}^^A
+%      }
+%      \centering
+%      \setlength{\unitlength}{1cm}
+%      \begin{picture}(10,10.5)
+%        \put(1,9.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{One}
+%            \bullbull{1}{1}
+%          \end{picture}}}
+%        \put(5,9.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Two}
+%            \bullbull{0}{1}
+%            \bullbull{2}{1}
+%          \end{picture}}}
+%        \put(9,9.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Three}
+%            \bullbull{0}{\oMr}
+%            \bullbull{2}{\oMr}
+%            \bullbull{1}{\oPr}
+%          \end{picture}}}
+%        \put(1,5.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Four}
+%            \bullbull{1}{0}
+%            \bullbull{0}{1}
+%            \bullbull{2}{1}
+%            \bullbull{1}{2}
+%          \end{picture}}}
+%        \put(5,5.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Five}
+%            \bullbull{0}{0}
+%            \bullbull{0}{2}
+%            \bullbull{1}{1}
+%            \bullbull{2}{0}
+%            \bullbull{2}{2}
+%          \end{picture}}}
+%        \put(9,5.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Six}
+%            \bullbull{.5}{\oMr}
+%            \bullbull{1.5}{\oMr}
+%            \bullbull{0}{1}
+%            \bullbull{2}{1}
+%            \bullbull{.5}{\oPr}
+%            \bullbull{1.5}{\oPr}
+%          \end{picture}}}
+%        \put(1,1.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Seven}
+%            \bullbull{.5}{\oMr}
+%            \bullbull{1.5}{\oMr}
+%            \bullbull{0}{1}
+%            \bullbull{1}{1}
+%            \bullbull{2}{1}
+%            \bullbull{.5}{\oPr}
+%            \bullbull{1.5}{\oPr}
+%          \end{picture}}}
+%        \put(5,1.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullbull{0}{\oMr}
+%            \bullbull{1}{\oMr}
+%            \bullbull{2}{\oMr}
+%            \bullgrid{Eight}
+%            \bullbull{.5}{1}
+%            \bullbull{1.5}{1}
+%            \bullbull{0}{\oPr}
+%            \bullbull{1}{\oPr}
+%            \bullbull{2}{\oPr}
+%          \end{picture}}}
+%        \put(9,1.5){\makebox(0,0){
+%          \begin{picture}(2,2)
+%            \bullgrid{Nine}
+%            \bullbull{0}{0}
+%            \bullbull{0}{1}
+%            \bullbull{0}{2}
+%            \bullbull{1}{0}
+%            \bullbull{1}{1}
+%            \bullbull{1}{2}
+%            \bullbull{2}{0}
+%            \bullbull{2}{1}
+%            \bullbull{2}{2}
+%          \end{picture}}}
+%      \end{picture}
+%      \caption{Arrangement of the bullets for the various counter values}
+%      \label{fig:patterns}
+%    \end{figure}
+%
+%    The following subsections explain the usage of the
+%    \packlass{\bullcntr} package, which just defines---as said
+%    above---the new command "\bullcntr".  If you intend to produce
+%    lists whose items are numbered with bullets, however, you should
+%    \emph{not} use directly this package, but rather the
+%    \packlass{\bullenum} package, which will be discussed in
+%    Section~\ref{S:UsageEnum}.  The \packlass{\bullenum} package
+%    loads \packlass{bullcntr} for you, passing to the latter the
+%    options with which you called it.
+%
+%    The \packlass{\bullcntr} has been extensively rewritten to
+%    correct a coarse---and very embarassing!~:-(~---^^A ) paren match
+%    bug concerning references to counters displayed with "\bullcntr".
+%
+%    \subsection{Package invocation and options}
+%    \label{sS:InvoCntr}
+%
+%    You invoke the \packlass{\bullcntr} package with the usual
+%    "\usepackage" declaration put in the preamble of your document.
+%    In this declaration you may specify one of the following,
+%    mutually exclusive options:
+%^^A
+%    \begin{description}
+%^^A
+%    \item[\sopt{largectrbull}]
+%    (Relatively) ``large'' bullets are used for all values from 1
+%    through~9.  This produces exactly the same effect as a
+%    "\largectrbull" global declaration (see
+%    Subsection~\ref{sS:BullDecl}).
+%^^A
+%    \item[\sopt{smallctrbull}]
+%    ``Small'' bullets are used for all values from 1 to~9.  This has
+%    exactly the same effect as a "\smallctrbull" global declaration
+%    (see Subsection~\ref{sS:BullDecl}).
+%^^A
+%    \item[\sopt{smartctrbull}]
+%    (Relatively) ``large'' bullets are used for the values from 1
+%    through~5 (inclusive), while ``small'' bullets are used for those
+%    greater than or equal to~6.  This produces exactly the same
+%    effect as a "\smartctrbull" global declaration (see
+%    Subsection~\ref{sS:BullDecl}).
+%^^A
+%    \item[\sopt{heartctrbull}]
+%    Hearts are used (instead of bullets) for all values from 1
+%    through~9.  This produces exactly the same effect as a
+%    "\heartctrbull" global declaration (see
+%    Subsection~\ref{sS:BullDecl}).
+%^^A
+%    \end{description}
+%^^A
+%    If you don't specify any, the default option is
+%    \opt{smartctrbull}.
+%
+%    For example, when preparing a valentine you might want to say
+%\begin{verbatim}
+%\usepackage[heartctrbull]{bullcntr}
+%\end{verbatim}
+%    (See Subsection~\ref{sS:InvoEnum}, however, if what you need is
+%    to produce a list whose items are numbered with bullets.)
+%
+%    Finer control over the appearance of bullets may be obtained by
+%    means of the ``hooks'' described in Subsection~\ref{sS:BullHook}.
+%
+%    \subsection{The main command}
+%    \label{sS:bullcntr}
+%
+%    \DescribeMacro{\bullcntr}
+%    This command is strictly analogous to the "\fnsymbol" command
+%    (cf.\ the \textsl{\LaTeX book}
+%    \cite[Subsection~C.8.4]{LaTeXbook}): you may use it directly in
+%    the text, as in
+%    \begin{flushleft}
+%      \small
+%      \ldots\texttt{the counter value displays as}"~\bullcntr{"\meta{ctr}"}"\ldots
+%    \end{flushleft}
+%    (where \meta{ctr} is a counter name, defined with "\newcounter"),
+%    or you may redefine the "\the"\meta{ctr} command, as in
+%    \begin{flushleft}
+%      \small
+%      "\renewcommand*{\the"\meta{ctr}"}{\bullcntr{"\meta{ctr}"}}"
+%    \end{flushleft}
+%    By way of example, in the case of a counter named \ctr{myctr},
+%    the source code in the two cases would be, respectively,
+%\begin{verbatim}
+%The counter value displays as~\bullcntr{myctr}.
+%\end{verbatim}
+%    and
+%\begin{verbatim}
+%\renewcommand*{\themyctr}{\bullcntr{myctr}}
+%\end{verbatim}
+%
+%    If \( "\value{"\meta{ctr}"}"=0 \), the command
+%    "\bullcntr{"\meta{ctr}"}" tacitly typesets nothing (not even a
+%    space); if \( "\value{"\meta{ctr}"}"<0 \) or \(
+%    "\value{"\meta{ctr}"}">9 \), an error occurs.
+%
+%    \subsection{Hooks for the bullets}
+%    \label{sS:BullHook}
+%
+%    The main task of the \packlass{\bullcntr} package is to calculate
+%    the position of the ``bullets'' used to display the value of the
+%    given counter (see fig.~\ref{fig:patterns}); but you are free to
+%    decide what characters are actually drawn in these positions:
+%    they need not necessarily be ``bullets''.  Indeed, two ``hooks''
+%    are provided in the package to define the actual characters
+%    employed, and the package simply invokes these hooks.
+%
+%    \DescribeMacro{\counterlargebullet}
+%    When the value of the counter being displayed is less than~6
+%    (less than~6 bullets need to be drawn), the "\bullcntr" command
+%    invokes the "\counterlargebullet" macro to draw each of them.  If
+%    you want, you should redefine this macro (using "\renewcommand")
+%    so that it generates a symbol suitable for arrangements in which
+%    the ``bullets'' are relatively spaced out.  For example,
+%\begin{verbatim}
+%\renewcommand*{\counterlargebullet}{\textbullet}
+%\end{verbatim}
+%    You don't \emph{need} to redefine this command: a convenient
+%    default definition is already set by the \packlass{\bullcntr}
+%    package itself.
+%
+%    \DescribeMacro{\countersmallbullet}
+%    When, on the other hand, the value of the counter being displayed
+%    is greater than or equal to~6 (6~or more bullets need to be
+%    drawn), the "\bullcntr" command calls the "\countersmallbullet"
+%    macro.  It is intended that this macro typesets a character
+%    suitable for situations in which the ``bullets'' have to be
+%    grouped in a compact cluster; typically, this means that a
+%    smaller ``bullet'' is used than the one typeset by
+%    "\counterlargebullet", although it is perfectly in order to use
+%    the same character in both situations.  If you want (but you
+%    don't \emph{need} to do this, since the \packlass{\bullcntr}
+%    package already defines this macro) you may change the definition
+%    with "\renewcommand", \emph{e.g.}:
+%\begin{verbatim}
+%\renewcommand*{\countersmallbullet}{\textperiodcentered}
+%\end{verbatim}
+%
+%    Fragile commands used in the definition of both hooks should be
+%    "\protect"'ed.
+%
+%    ``Macho \TeX\ programmers'' may also use "\def" instead of
+%    "\renewcommand", \emph{e.g.}:
+%\begin{verbatim}
+%\def\counterlargebullet{\textbullet}
+%\def\countersmallbullet{\textperiodcentered}
+%\end{verbatim}
+%    (Actually, in a case like this, even "\let" could be used.)
+%
+%    \subsection{Declarations for predefined bullet styles}
+%    \label{sS:BullDecl}
+%
+%    To spare you the nuisance of redefining the two hooks mentioned
+%    in Subsection~\ref{sS:BullHook}, at least in normal situations,
+%    four basic ``bullet styles'' are already predefined by the
+%    \packlass{\bullcntr} package, covering what the author believes
+%    are the most common cases.  You can switch to any of these
+%    predefined styles by means of the following four declarations.
+%
+%    \DescribeMacro{\largectrbull}
+%    This declaration causes (relatively) ``large'' bullets to be used
+%    for all values from 1 to~9.
+%
+%    \DescribeMacro{\smallctrbull}
+%    This declaration causes ``small'' bullets to be used for all
+%    values from 1 to~9.
+%
+%    \DescribeMacro{\smartctrbull}
+%    This declaration causes (relatively) ``large'' bullets to be used
+%    for values from 1 to~5 (inclusive), and ``small'' bullets for
+%    values equal to or above~6.
+%
+%    \DescribeMacro{\heartctrbull}
+%    With this declaration, little hearts will be used for all values
+%    from 1 to~9.
+%
+%    These are in all respects normal declarations, obeying to
+%    ordinary scoping rules.  The corresponding options described in
+%    Subsection~\ref{sS:InvoCntr} simply set the style at the outer
+%    (global, or document-wide) level.
+%
+% \section{How to use the \packlass{\bullenum} package}
+% \label{S:UsageEnum}
+%
+%    The \packlass{\bullcntr} package was conceived for the purpose of
+%    imitating in print an unusual way of numbering items in a list,
+%    that the author saw in certain handwritten notes (see the
+%    Introduction).  With the "\bullcntr" command at hand, this could
+%    be achieved simply by saying something like
+%\begin{verbatim}
+%\begin{enumerate}
+%    \renewcommand*{\theenumi}{\bullcntr{enumi}}
+%    \renewcommand*{\labelenumi}{\theenumi}
+%\end{verbatim}
+%    \begin{flushleft}
+%      \small
+%      \texttt{\ \ \ \ }\meta{items}
+%    \end{flushleft}
+%\begin{verbatim}
+%\end{enumerate}
+%\end{verbatim}
+%    This, nonetheless, is not perfect, since it breaks if the
+%    \env{enumerate} environment is moved inside another
+%    \env{enumerate}, because of the explicit mention of "\theenumi"
+%    and of "\labelenumi".
+%
+%    For this reason, and also to facilitate the use of the
+%    "\bullcntr" command for numbering list items, an ancillary
+%    package has been added to the \packlass{\bullcntr} package; this
+%    ancillary package, called \packlass{\bullenum}, simply defines
+%    the \env{bullenum} environment, a variation of \env{enumerate}
+%    which numbers its items using the "\bullcntr" command.  Indeed,
+%\begin{verbatim}
+%\begin{bullenum}
+%\end{verbatim}
+%    \begin{flushleft}
+%      \small
+%      \texttt{\ \ \ \ }\meta{items}
+%    \end{flushleft}
+%\begin{verbatim}
+%\end{bullenum}
+%\end{verbatim}
+%    is equivalent to
+%    \begin{flushleft}
+%      \small
+%      "\begin{enumerate}"\\
+%      "    \renewcommand*{\theenum"\meta{lvl}"}{\bullcntr{enum"\meta{lvl}"}}"\\
+%      "    \renewcommand*{\labelenum"\meta{lvl}"}{\theenum"\meta{lvl}"}"
+%    \end{flushleft}
+%    \begin{flushleft}
+%      \small
+%      \texttt{\ \ \ \ }\meta{items}\\[\topsep]
+%    \end{flushleft}
+%\begin{verbatim}
+%\end{enumerate}
+%\end{verbatim}
+%    where \meta{lvl} is \texttt{i}, \texttt{ii}, \texttt{iii},
+%    or~\texttt{iv}, depending on the current level of the
+%    \env{enumerate} environment.
+%
+%    In other words, \env{bullenum} can be used in every place where
+%    \env{enumerate} can, and numbers its items with an increasing
+%    number of bullets, regardless of the current definition of
+%    "\theenum"\meta{lvl} and "\labelenum"\meta{lvl}.  Of course, the
+%    environment must contain no more than 9~items.  Moreover, if you
+%    use "\label" to set up a reference, subsequent "\ref"'s will
+%    typeset the reference as a ``bulletted'' number, using, for the
+%    ``bullets'', the character that was current at the time the
+%    "\label" was encountered (in brief, they will do the right
+%    thing).
+%
+%    Notice that you should \emph{not} load the \packlass{\bullcntr}
+%    package if you invoke \packlass{\bullenum}, because the latter
+%    calls the former.  As explained below, you may pass to
+%    \packlass{\bullenum} the options that you would require from
+%    \packlass{\bullcntr}: the outer package will forward them to the
+%    inner one.  Actually, most users will just use the
+%    \packlass{\bullenum} package, and never call \packlass{\bullcntr}
+%    directly.
+%
+%    \subsection{Package invocation and options}
+%    \label{sS:InvoEnum}
+%
+%    You invoke the \packlass{\bullenum} package with the usual
+%    "\usepackage" declaration put in the preamble of your document.
+%    In this declaration you may specify exactly the same options that
+%    you would pass to the \packlass{\bullcntr} package, with the same
+%    meaning.  The \packlass{\bullenum} package calls
+%    \packlass{bullcntr} for you, just passing on to it the options
+%    you asked for.
+%
+%    Continuing our example of valentines: if what you actually want
+%    is to produce a list numbered with hearts, you should \emph{not}
+%    say
+%\begin{verbatim}
+%\usepackage[heartctrbull]{bullcntr}
+%\end{verbatim}
+%    as deceitfully suggested in Subsection~\ref{sS:InvoCntr} (well,
+%    actually we had not spoken of lists there, had we?), but rather
+%\begin{verbatim}
+%\usepackage[heartctrbull]{bullenum}
+%\end{verbatim}
+%
+%    \subsection{The main environment}
+%    \label{sS:bullenum}
+%
+%    \DescribeEnv{bullenum}
+%    This environment is syntactically analogous to \env{enumerate},
+%    but numbers its items with an increasing number of bullets (using
+%    the "\bullcntr" command).  You must include no more than 9~items
+%    in this environment.  The style of the bullets is governed by the
+%    declarations described in Subsection~\ref{sS:BullDecl}, according
+%    to ordinary scoping rules.  A change local to the environment
+%    being employed can be obtained by simply enclosing the relevant
+%    declaration inside the environment itself; \emph{e.g.},
+%\begin{verbatim}
+%\begin{bullenum}
+%    \smallctrbull
+%\end{verbatim}
+%    \begin{flushleft}
+%      \small
+%      \texttt{\ \ \ \ }\meta{items}
+%    \end{flushleft}
+%\begin{verbatim}
+%\end{bullenum}
+%\end{verbatim}
+%    will use ``small'' bullets regardless of whatever style might
+%    have been in force outside the \env{bullenum} environment.
+%
+%    If you want finer control over the appearance of the ``bullets'',
+%    just redefine the hooks of
+%    Subsection~\ref{sS:BullHook}; doing this inside the environment
+%    itself will keep changes to the hooks local.  For example, you
+%    might say
+%\begin{verbatim}
+%\begin{bullenum}
+%    \renewcommand*{\counterlargebullet}{$\scriptscriptstyle \diamondsuit$}
+%    \renewcommand*{\countersmallbullet}{\counterlargebullet}
+%\end{verbatim}
+%    \begin{flushleft}
+%      \small
+%      \texttt{\ \ \ \ }\meta{items}
+%    \end{flushleft}
+%\begin{verbatim}
+%\end{bullenum}
+%\end{verbatim}
+%    (yes, ``macho \TeX\ programmers'' may also use "\def", or "\let"
+%    where appropriate).
+%
+%    Of course, this environment does not affect the definition of
+%    "\theenum"\meta{lvl} and of "\labelenum"\meta{lvl} that are valid
+%    outside the environment itself, for \( \meta{lvl} =
+%    \texttt{i}\ldots\texttt{iv} \).
+%
+% \StopEventually{
+%    \setcounter{secnumdepth}{0}
+%    \providecommand*\bysame{\leavevmode\hbox to3em{\hrulefill}\thinspace}
+%
+%    \clearpage
+%    \begin{thebibliography}{9}
+%    \addcontentsline{toc}{section}{\refname}
+%
+%    \bibitem{LaTeXbook}
+%    L.~Lamport, \emph{\LaTeX---A Document Preparation System---User's
+%       Guide and Reference Manual}, 2nd~edition, Addison-Wesley,
+%       Reading, 1994.
+%
+%    \end{thebibliography}
+% }
+%
+%
+%
+% \clearpage
+% \part{Implementation}
+%
+% \section{About this part}
+%
+%    This part is of interest only to \LaTeX\ hackers; to avoid
+%    having this part printed, look in the file \filedir{\filename}
+%    for a line that looks \emph{exactly} like this
+%    \begin{verbatim}%% \OnlyDescription % uncomment to discard Implementation part\end{verbatim}
+%    and remove the two leading percent signs ("%%").
+%
+% \section{A driver for this document}
+%
+%    This part of the file is \emph{not} included in any generated file:
+%    it is simply the driver.
+%    \begin{macrocode}
+%<*driver>
+%    \end{macrocode}
+%
+%    To begin with, we load the \packlass{ltxdoc} class.
+%    \begin{macrocode}
+\documentclass[a4paper]{ltxdoc}
+%    \end{macrocode}
+%    We now set a few typesetting options.
+%    First of all, we want a history listing and a full index, the latter
+%    organized by line numbers.
+%    \begin{macrocode}
+\RecordChanges
+\EnableCrossrefs
+\CodelineIndex
+%    \end{macrocode}
+%    If you don't want to include the second part of this document,
+%    \emph{Implementation}, uncomment the line containing the command
+%    "\OnlyDescription".
+%    \begin{macrocode}
+%% \OnlyDescription % uncomment to discard Implementation part
+%    \end{macrocode}
+%    Finally, setting "\hfuzz" and "\vfuzz" to 0~points is only one
+%    of the many neurotic symptoms of the author!
+%    \begin{macrocode}
+\hfuzz = 0pt
+\vfuzz = 0pt
+%    \end{macrocode}
+%    Now input this same file, using \DS\ conventions.
+%    \begin{macrocode}
+\begin{document}
+  \DocInput{bullcntr.dtx}
+%    \end{macrocode}
+%    Then print the change list and the index.  We put these commands in
+%    the driver, rather than in the comments of this file, because
+%    producing the change list and the index is somewhat cumbersome, and some
+%    users could prefer to omit them: such users should simply use a
+%    different driver.
+%    \begin{macrocode}
+  % \clearpage % attach Change History below References
+  \PrintChanges
+  \clearpage \PrintIndex
+%    \end{macrocode}
+%    When this file is read directly by \LaTeX\ without the intervention
+%    of \DS, the following line will make \TeX\ stop
+%    reading.
+%    \begin{macrocode}
+\end{document}
+%    \end{macrocode}
+%    End of driver module.
+%    \begin{macrocode}
+%</driver>
+%    \end{macrocode}
+%
+% \section{The code for the \packlass{\bullcntr} package}
+%
+%    This part of the file goes into \filedir{\bullcntr.sty}.
+%    \begin{macrocode}
+%<*bullcntr>
+%    \end{macrocode}
+%
+%    \subsection{Identification}
+%
+%    The usual identification.  Is there a real need for this version
+%    of \LaTeXe?
+%    \begin{macrocode}
+\NeedsTeXFormat{LaTeX2e}[1998/06/01] % LaTeX2e is required!
+\ProvidesPackage{bullcntr}
+                [2007/04/02 v0.04 (**development**)]
+%    \end{macrocode}
+%
+%    \subsection{Initial code}
+%
+%    The code pertaining to the bullet styles is needed in the option
+%    processing phase, so it must be defined here.
+%
+%    \subsubsection{Hooks for the bullets}
+%    \label{sS:BullHookImpl}
+%
+%    Here we set the default definitions.  Actually, these defaults
+%    will be re-established (or possibly changed, in future versions)
+%    by "\ExecuteOptions", below; nonetheless, I think it's always
+%    better to do things twice than to run the risk of not doing them
+%    at all!
+%
+%    \begin{macro}{\counterlargebullet}
+%    The \packlass{\bullcntr} package invokes this macro to draw the
+%    bullets, when the value of the counter being displayed is less
+%    than six.  The default definition is a "\bullet" in script
+%    style~($\scriptstyle\bullet$), but the user is free to change it
+%    with "\renewcommand" (macho \TeX\ programmers may also use
+%    "\def", or even "\let").
+%    \begin{macrocode}
+\newcommand*\counterlargebullet{$\scriptstyle \bullet$}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\countersmallbullet}
+%    This is the command invoked to draw the bullets when the value of
+%    the counter being displayed is greater or equal than six.
+%    Defaults to a "\bullet" in scriptscript
+%    style~($\scriptscriptstyle \bullet$), but may be changed with
+%    "\renewcommand" (or "\def", or "\let").
+%    \begin{macrocode}
+\newcommand*\countersmallbullet{$\scriptscriptstyle \bullet$}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    The question arises, whether these definitions are appropriate.
+%    Their main drawback is that they bypass the machinery set up for
+%    using symbols from an extended character set when they are
+%    available.  The problem is that "\textbullet" is simply too
+%    large, and "\textperiodcentered" far too small\ldots
+%
+%    Precautions have been taken to assure that these macros are
+%    \emph{fully} expanded, without stopping to the first-level
+%    expansion, when a reference to a counter displayed using
+%    "\bullcntr" is generated.  This is important in situations in
+%    which the user has done something like this (which looks
+%    absolutely natural):
+%^^A
+%    \begin{flushleft}
+%      \small
+%      "\renewcommand*{\counterlargebullet}{"\meta{some code}"}"\\
+%      "\renewcommand*{\countersmallbullet}{\counterlargebullet}"
+%    \end{flushleft}
+%^^A
+%    If "\countersmallbullet" were expanded just to the first level,
+%    this would result in using the definition of
+%    "\counterlargebullet" that is in force when the \emph{reference},
+%    and not the counter value, is typeset.
+%
+%    \subsubsection{Declarations for predefined bullet styles}
+%
+%    Each of the following commands, intended to be used as a
+%    declaration without arguments, sets a convenient definition for
+%    the hooks defined in Subsection~\ref{sS:BullHookImpl}.
+%
+%    \begin{macro}{\heartctrbull}
+%    Use hearts for all values from 1 to~9.
+%    \begin{macrocode}
+\newcommand*\heartctrbull{%
+  \def\counterlargebullet{$\scriptscriptstyle \heartsuit$}%
+  \let\countersmallbullet\counterlargebullet
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\smallctrbull}
+%    Use ``small'' bullets for all values from 1 to~9.
+%    \begin{macrocode}
+\newcommand*\smallctrbull{%
+  \def\counterlargebullet{$\scriptscriptstyle \bullet$}%
+  \let\countersmallbullet\counterlargebullet
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\largectrbull}
+%    Use ``large'' bullets for all values from 1 to~9.
+%    \begin{macrocode}
+\newcommand*\largectrbull{%
+  \def\counterlargebullet{$\scriptstyle \bullet$}%
+  \let\countersmallbullet\counterlargebullet
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\smartctrbull}
+%    Use ``large'' bullets for values from 1 to~5, and ``small'' ones
+%    for values from 6 to~9.
+%    \begin{macrocode}
+\newcommand*\smartctrbull{%
+  \def\counterlargebullet{$\scriptstyle \bullet$}%
+  \def\countersmallbullet{$\scriptscriptstyle \bullet$}
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \subsection{Declaration of options}
+%
+%    As a general rule, options pertaining to the same functional group
+%    are declared in reverse order of desirability, the default option of
+%    the group being declared last.  This assures that if more than
+%    one option of the same group is erroneously asked for by the
+%    user, the ``most desirable'' one (whatever this means) is
+%    executed last, thereby remaining in effect.
+%
+%    Here we just have the options for setting the bullet style.  Each
+%    of them simply invokes its corresponding declaration.
+%
+%    \begin{macrocode}
+\DeclareOption{heartctrbull}{\heartctrbull}
+\DeclareOption{smallctrbull}{\smallctrbull}
+\DeclareOption{largectrbull}{\largectrbull}
+\DeclareOption{smartctrbull}{\smartctrbull}
+%    \end{macrocode}
+%
+%    \subsection{Option processing}
+%
+%    Nothing special to note here.
+%
+%    \begin{macrocode}
+\ExecuteOptions{smartctrbull}
+\ProcessOptions\relax
+%    \end{macrocode}
+%
+%    \subsection{Package loading}
+%
+%    This package requires no helper packages.
+%
+%    \subsection{Main code}
+%    \label{sS:MainCode}
+%
+%    Fig.~\ref{fig:dimens} shows the exact (theoretical) dimensions of
+%    the grid used to place the bullets; we already saw in
+%    fig.~\ref{fig:patterns}, in Section~\ref{S:UsageCntr}, on which
+%    nodes of this grid the bullets are placed for each value of the
+%    counter being displayed.  The grid is used assuming a unit of
+%    measure equal to 1~ex.
+%
+%    \begin{figure}[tbp]
+%      \centering
+%        \setlength{\unitlength}{3cm}
+%        \begin{picture}(3.1666667,3.2)(0,-.8333333)
+%          \thicklines
+%          \multiput(0,0)(.5,0){5}{\line(0,1){2}}
+%          \multiput(0,0)(0,1){3}{\line(1,0){2}}
+%          \put(0,\oMr){\line(1,0){2}}
+%          \put(0,\oPr){\line(1,0){2}}
+%          \linethickness{.2pt}
+%          \multiput(0,0)(2,0){2}{\line(0,-1){.77}}
+%          \multiput(.5,0)(.5,0){3}{\line(0,-1){.43}}
+%          \multiput(.3,-.3333333)(.5,0){4}{\vector(-1,0){.3}}
+%          \multiput(.2,-.3333333)(.5,0){4}{\vector(1,0){.3}}
+%          \multiput(.25,-.5)(.5,0){4}{\makebox(0,0)[b]{$\frac{1}{2}$}}
+%          \put(1.5,-.6666667){\vector(-1,0){1.5}}
+%          \put(.5,-.6666667){\vector(1,0){1.5}}
+%          \put(1,-.6666667){\makebox(0,0)[t]{\strut $2$}}
+%          \multiput(2,0)(0,2){2}{\line(1,0){1.1}}
+%          \put(2,\oMr){\line(1,0){.43}}
+%          \put(2,\oPr){\line(1,0){.43}}
+%          \put(2,1){\line(1,0){.77}}
+%          \put(2.3333333,.7){\vector(0,-1){.5660254}}
+%          \put(2.3333333,.3){\vector(0,1){.7}}
+%          \put(2.3333333,1.7){\vector(0,-1){.7}}
+%          \put(2.3333333,1.3){\vector(0,1){.5660254}}
+%          \put(2.3333333,.5669873){\makebox(0,0)[l]{$\,\frac{\sqrt{3}}{2}$}}
+%          \put(2.3333333,1.4330127){\makebox(0,0)[l]{$\,\frac{\sqrt{3}}{2}$}}
+%          \multiput(2.6666667,.4)(0,1){2}{\vector(0,1){.6}}
+%          \multiput(2.6666667,.6)(0,1){2}{\vector(0,-1){.6}}
+%          \multiput(2.6666667,.5)(0,1){2}{\makebox(0,0)[l]{$\,1$}}
+%          \put(3,.5){\vector(0,1){1.5}}
+%          \put(3,1.5){\vector(0,-1){1.5}}
+%          \put(3,1){\makebox(0,0)[l]{$\,2$}}
+%          \multiput(0,2)(.5,0){5}{\line(0,1){.1666667}}
+%          \multiput(0,2.2666667)(.5,0){5}{\circle{.2}}
+%          \put(0  ,2.2666667){\makebox(0,0){1}}
+%          \put( .5,2.2666667){\makebox(0,0){2}}
+%          \put(1  ,2.2666667){\makebox(0,0){3}}
+%          \put(1.5,2.2666667){\makebox(0,0){4}}
+%          \put(2  ,2.2666667){\makebox(0,0){5}}
+%        \end{picture}
+%      \caption{Dimensions of the grid defining the position of the bullets}
+%      \label{fig:dimens}
+%    \end{figure}
+%
+%    \subsubsection{Basic drawing macros}
+%
+%    \begin{macro}{\@b@ll@box}
+%    The task of this macro is simply to hide its argument in a
+%    zero-dimensional box.  I know, \LaTeX\ kernel commands should be
+%    used for this purpose, but\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@box{\def\@b@ll@box#1{%
+  \hb@xt@ \z@ {%
+    \hss\vbox to \z@ {%
+      \vss\hbox{#1}\vss
+    }\hss
+  }%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@kernem}
+%    Two convenient abbreviations for sparing tokens in subsequent
+%    macros: the first\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@kernem{\def\@b@ll@kernem{\kern 1ex }}
+%    \end{macrocode}
+%    \end{macro}
+%    \begin{macro}{\@b@ll@kernen}
+%    \ldots\ and the second.
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@kernen{\def\@b@ll@kernen{\kern .5ex }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@full@row}
+%    This macro constructs a zero-height (and zero-depth) "\hbox" with
+%    three inner zero-dimensional boxes, each containing one of the
+%    three arguments.  These inner boxes are spaced out so as to place
+%    them in the columns marked \circnumb{1}, \circnumb{3}
+%    and~\circnumb{5} in fig.~\ref{fig:dimens}.  The idea is that this
+%    macro produces a row of bullets.
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@full@row{\def\@b@ll@full@row#1#2#3{%
+  \hbox{%
+    \thinspace
+    \@b@ll@box{#1}%
+    \@b@ll@kernem
+    \@b@ll@box{#2}%
+    \@b@ll@kernem
+    \@b@ll@box{#3}%
+    \thinspace
+  }%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@half@row}
+%    This macro is similar to "\@b@ll@full@row": it produces a row of
+%    bullets as well, but with only two boxes, that end up in the
+%    columns marked \circnumb{2} and~\circnumb{4} in
+%    fig.~\ref{fig:dimens}.
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@half@row{\def\@b@ll@half@row#1#2{%
+  \hbox{%
+    \thinspace\@b@ll@kernen
+    \@b@ll@box{#1}%
+    \@b@ll@kernem
+    \@b@ll@box{#2}%
+    \thinspace\@b@ll@kernen
+  }%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@full@skip}
+%    When the rows produced by "\@b@ll@full@row" or by
+%    "\@b@ll@half@row" are being stacked to compose the desired
+%    pattern, this macro is invoked to separate them with a vertical
+%    space of $1$~unit (that is, $1$~ex).
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@full@skip{\def\@b@ll@full@skip{%
+  \vskip 1ex \relax
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@redu@skip}
+%    Similar to the above, but the vertical space measures
+%    $\frac{\sqrt{3}}{2}$~units (that is, $\frac{\sqrt{3}}{2}$~ex).
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@redu@skip{\def\@b@ll@redu@skip{%
+  \vskip .866025403785ex \relax
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \subsubsection{Macros for drawing the bullet patterns}
+%
+%    When setting a reference, "\@currentlabel" is set by means of a
+%    (protected) "\edef"; hence, if we have redefined "\the"\meta{ctr}
+%    (where \meta{ctr} is the counter being referenced) as
+%    "\bullcntr{"\meta{ctr}"}", the "\bullcntr" command is expanded,
+%    and indeed \emph{has} to be expanded (so, defining it with
+%    "\DeclareRobustCommand" is absolutely pointless).  In previous
+%    versions, this command broke down miserably in such circumstance.
+%    So, let us rethink the whole thing with more ponderation, trying
+%    not to confuse expansion and digestion like a newbie.
+%
+%    The general idea runs as depicted in the following list.
+%
+%    \begin{enumerate}
+%
+%    \item
+%    "\bullcntr" calls "\@b@ll@cntr", converting the counter name into
+%    the corresponding internal register (expansion).
+%
+%    \item\label{item:b@ll@}
+%    "\@b@ll@cntr" tests whether the counter value is below~6
+%    (expansion) and calls "\@b@ll@@cntr" passing the appropriate
+%    "\counter"$\,*\,$\texttt{bullet} command.
+%
+%    \item\label{item:b@ll@@}
+%    "\@b@ll@@cntr" selects which pattern to draw, depending on the
+%    counter value (expansion), and calls the appropriate macro among
+%    the ones defined below.  At this point the call could also be
+%    "\protect"'ed, since no further expansion is required, when
+%    setting a reference, in order to select the correct number (and
+%    type) of bullets.  The "\@b@ll@@cntr" macro receives in~\#1 the
+%    macro to be used to draw the bullets and in~\#2 the internal
+%    count register.
+%
+%    \item
+%    "\ensuremath" and everything that has to be digested is put in
+%    the macros defined below.
+%
+%    \end{enumerate}
+%
+%    Steps \ref{item:b@ll@} and~\ref{item:b@ll@@} could be combined,
+%    thus eliminating one macro, but I feel that the code is more
+%    readable if the two steps are kept separate.
+%
+%    We continue our bottom-up approach in ordering the macro
+%    definitions.
+%
+%    \begin{macro}{\@b@ll@vcent}
+%    The command that ultimately does the typesetting.  It might be
+%    called either from outside or from inside math mode; so
+%    "\ensuremath" for the "\vcenter" that aligns the box of bullets
+%    on the math axis.  The boxes themselves are produced by the
+%    macros passed in argument~\#1.
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@vcent{\def\@b@ll@vcent#1{%
+  \ensuremath{\vcenter{\offinterlineskip #1}}%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    A series of macros follows, each of which typesets a specific
+%    bullet pattern.  They all invoke "\@b@ll@vcent", passing in its
+%    argument the appropriate macros.  In their own argument, they
+%    receive the code that has to be employed to produce the bullets
+%    (the \emph{expansion} of "\counter"$\,*\,$\texttt{bullet}).  To
+%    avoid proliferation of macros, we do not define them with
+%    "\DeclareRobustCommand"; rather, we shall "\protect" them when
+%    invoking them, below.  (\emph{Begin to think:} why not to make
+%    these macros accessible at the user level, calling them,
+%    \emph{e.g.}, "\bullcntrone", "\bullcntrtwo", etc.?  In this case,
+%    "\DeclareRobustCommand" could be considered.)
+%
+%    \begin{macro}{\@b@ll@one}
+%    Macro for value~1.  Just one row with a bullet in the middle:
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@one{\def\@b@ll@one#1{\@b@ll@vcent{%
+  \@b@ll@full@row{}{#1}{}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@two}
+%    Macro for value~2.  Just one row with two bullets at both ends:
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@two{\def\@b@ll@two#1{\@b@ll@vcent{%
+  \@b@ll@full@row{#1}{}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@three}
+%    Macro for value~3.  One row with a centered bullet and one with
+%    two bullets at the ends, separated by a vertical space of
+%    $\sqrt{3}$~units:
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@three{\def\@b@ll@three#1{\@b@ll@vcent{%
+  \@b@ll@full@row{}{#1}{}%
+  \@b@ll@redu@skip
+  \@b@ll@redu@skip
+  \@b@ll@full@row{#1}{}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@four}
+%    And so on: macro for value~4\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@four{\def\@b@ll@four#1{\@b@ll@vcent{%
+  \@b@ll@full@row{}{#1}{}%
+  \@b@ll@full@skip
+  \@b@ll@full@row{#1}{}{#1}%
+  \@b@ll@full@skip
+  \@b@ll@full@row{}{#1}{}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@five}
+%    \ldots for value~5\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@five{\def\@b@ll@five#1{\@b@ll@vcent{%
+  \@b@ll@full@row{#1}{}{#1}%
+  \@b@ll@full@skip
+  \@b@ll@full@row{}{#1}{}%
+  \@b@ll@full@skip
+  \@b@ll@full@row{#1}{}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@six}
+%    \ldots for~6\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@six{\def\@b@ll@six#1{\@b@ll@vcent{%
+  \@b@ll@half@row{#1}{#1}%
+  \@b@ll@redu@skip
+  \@b@ll@full@row{#1}{}{#1}%
+  \@b@ll@redu@skip
+  \@b@ll@half@row{#1}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@seven}
+%    \ldots 7\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@seven{\def\@b@ll@seven#1{\@b@ll@vcent{%
+  \@b@ll@half@row{#1}{#1}%
+  \@b@ll@redu@skip
+  \@b@ll@full@row{#1}{#1}{#1}%
+  \@b@ll@redu@skip
+  \@b@ll@half@row{#1}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@eight}
+%    \ldots 8\ldots
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@eight{\def\@b@ll@eight#1{\@b@ll@vcent{%
+  \@b@ll@full@row{#1}{#1}{#1}%
+  \@b@ll@redu@skip
+  \@b@ll@half@row{#1}{#1}%
+  \@b@ll@redu@skip
+  \@b@ll@full@row{#1}{#1}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@nine}
+%    \ldots and~9:
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@nine{\def\@b@ll@nine#1{\@b@ll@vcent{%
+  \@b@ll@full@row{#1}{#1}{#1}%
+  \@b@ll@full@skip
+  \@b@ll@full@row{#1}{#1}{#1}%
+  \@b@ll@full@skip
+  \@b@ll@full@row{#1}{#1}{#1}%
+}}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \subsubsection{The main command}
+%
+%    \begin{macro}{\bullcntr}
+%    User-level command: simply invokes its inner-level counterpart,
+%    using the internal name of the counter (the \meta{countdef
+%    token}, right below).
+%    \begin{macrocode}
+\newcommand*\bullcntr[1]{\expandafter\@b@ll@cntr\csname c@#1\endcsname}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@cntr}
+%    This macro expands either to
+%    \begin{center}
+%      "\@b@ll@@cntr \counterlargebullet "\meta{countdef token}
+%    \end{center}
+%    or to
+%    \begin{center}
+%      "\@b@ll@@cntr \countersmallbullet "\meta{countdef token}
+%    \end{center}
+%    depending on the counter value.  Note that \#1 must be a single
+%    token (as it is).
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@cntr{\def\@b@ll@cntr#1{%
+  \expandafter\expandafter\expandafter \@b@ll@@cntr
+  \ifnum #1<6
+    \expandafter\counterlargebullet
+  \else
+    \expandafter\countersmallbullet
+  \fi
+  #1%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@b@ll@@cntr}
+%    This macro selects the pattern to draw.  The following is a
+%    typical switch on the counter value, but pay attention to the
+%    "\protect"\slash "\expandafter" mechanism: after this macro, and
+%    hence the "\ifcase", have been expanded, the token flow will look
+%    like this (if the value of the counter is, say, 2 and the
+%    argument passed in~\#1 is, consequently, "\counterlargebullet"):
+%    \begin{center}
+%      "\protect \@b@ll@two {\counterlargebullet }"
+%    \end{center}
+%    Therefore, in the context of a "\protected@edef", the
+%    "\protect"'ed "\@b@ll@two" will not be expanded, but
+%    "\counterlargebullet" will be (fully).
+%    \changes{0.04}{2007/04/02}{Corrected erroneous behavior for case~0,
+%      argument \#1 must be \protect\cmnd{@gobble}'d in this case}
+%    \begin{macrocode}
+\@ifdefinable\@b@ll@@cntr{\def\@b@ll@@cntr#1#2{%
+  \ifcase #2\expandafter\@gobble
+  \or
+    \expandafter\protect \expandafter\@b@ll@one
+  \or
+    \expandafter\protect \expandafter\@b@ll@two
+  \or
+    \expandafter\protect \expandafter\@b@ll@three
+  \or
+    \expandafter\protect \expandafter\@b@ll@four
+  \or
+    \expandafter\protect \expandafter\@b@ll@five
+  \or
+    \expandafter\protect \expandafter\@b@ll@six
+  \or
+    \expandafter\protect \expandafter\@b@ll@seven
+  \or
+    \expandafter\protect \expandafter\@b@ll@eight
+  \or
+    \expandafter\protect \expandafter\@b@ll@nine
+%    \end{macrocode}
+%    For larger values we simply invoke the error-handling macro of
+%    the kernel; strictly speaking, this is not correct, since this is
+%    not a ``\LaTeX\ error'', but an error from this package.  Anyway,
+%    I think no user will be surprised by this behavior.
+%    \begin{macrocode}
+  \else
+    \expandafter\@ctrerr
+%    \end{macrocode}
+%    The argument intended for "\@b@ll@"\meta{number} follows, that
+%    "\@ctrerr" doesn't want, so we follow it with a "\@gobble"; note
+%    that this is \emph{not} "\protect"'ed, thus, during a
+%    "\protected@edef", the espansion of "\@b@ll@@cntr" in this ``out
+%    of range'' case will leave nothing in the token flow.
+%    \begin{macrocode}
+    \expandafter\@gobble
+%    \end{macrocode}
+%    After selecting the appropriate macro, we insert the argument:
+%    \begin{macrocode}
+  \fi
+    {#1}%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    End of the module for the \packlass{\bullcntr} package.
+%    \begin{macrocode}
+%</bullcntr>
+%    \end{macrocode}
+%
+% \section{The code for the \packlass{\bullenum} package}
+%
+%    This part of the file goes into \filedir{\bullenum.sty}.
+%    \begin{macrocode}
+%<*bullenum>
+%    \end{macrocode}
+%
+%    \subsection{Identification}
+%
+%    The usual identification.  Is there a real need for this version
+%    of \LaTeXe?
+%    \begin{macrocode}
+\NeedsTeXFormat{LaTeX2e}[1998/06/01] % LaTeX2e is required!
+\ProvidesPackage{bullenum}
+                [2007/04/02 v0.04 (**development**)]
+%    \end{macrocode}
+%
+%    \subsection{Initial code}
+%
+%    This package has no initial code.
+%
+%    \subsection{Declaration of options}
+%
+%    Just pass every option on to the \packlass{\bullcntr} package.
+%
+%    \begin{macrocode}
+\DeclareOption*{\PassOptionsToPackage{\CurrentOption}{bullcntr}}
+%    \end{macrocode}
+%
+%    \subsection{Option processing}
+%
+%    Nothing special to note here.
+%
+%    \begin{macrocode}
+\ProcessOptions\relax
+%    \end{macrocode}
+%
+%    \subsection{Package loading}
+%
+%    Neither here.
+%
+%    \begin{macrocode}
+\RequirePackage{bullcntr}[2007/04/02]
+%    \end{macrocode}
+%
+%    \subsection{Main code}
+%
+%    The purpose of this package is simply to define the
+%    \env{bullenum} environment.
+%
+%    \begin{environment}{bullenum}
+%    This is just an \env{enumerate} environment in which we say
+%^^A
+%    \begin{flushleft}
+%      "\def\the"\meta{enum~$\ell$}"{\bullcntr{"\meta{enum~$\ell$}"}}"\\
+%      "\def\label"\meta{enum~$\ell$}"{\the"\meta{enum~$\ell$}"}"
+%    \end{flushleft}
+%^^A
+%    at the beginning, where \( \meta{enum~$\ell$} =
+%    \mbox{eval(}"\@enumctr"\mbox{)} \) (\emph{i.e.}, \(
+%    \meta{enum~$\ell$} = \texttt{enumi},\linebreak[0]
+%    \texttt{enumii},\ldots \), according to the current value of
+%    "\@enumdepth").
+%    \begin{macrocode}
+\newenvironment*{bullenum}{%
+  \enumerate
+  \expandafter\edef \csname the\@enumctr\endcsname {%
+    \noexpand\bullcntr{\@enumctr}%
+  }%
+  \expandafter\edef \csname label\@enumctr\endcsname {%
+    \expandafter\noexpand \csname the\@enumctr\endcsname
+  }%
+}{\endenumerate}
+%    \end{macrocode}
+%    \end{environment}
+%
+%    End of the module for the \packlass{\bullenum} package.
+%    \begin{macrocode}
+%</bullenum>
+%    \end{macrocode}
+%
+% \section{End of input}
+%
+%    The usual "\endinput" which prevents the \DS\ program from putting
+%    garbage into the generated files.
+%    \begin{macrocode}
+\endinput
+%    \end{macrocode}
+%
+% \Finale
+%
-- 
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