cdpbundl (9feb15)

git-svn-id: svn://tug.org/texlive/trunk@36255 c570f23f-e606-0410-a88d-b1316a301751

2 files changed, 1880 insertions, 689 deletions

diff --git a/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.dtx b/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.dtx
index 01d80c3291d..7177a03f800 100644
--- a/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.dtx
+++ b/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.dtx
@@ -5,7 +5,8 @@
 %
 %   This file is part of a work named "C.D.P. Bundle".
 %
-%   Copyright (C) 1999-2006 by Gustavo MEZZETTI <mezzetti@math.unipd.it>.
+%   Copyright (C) 1999-2015 by Gustavo MEZZETTI
+%                             <gustavo.mezzetti@istruzione.it>.
 %
 %   The C.D.P. Bundle may be distributed and/or modified under the
 %   conditions of the LaTeX Project Public License, either version 1.3
@@ -13,7 +14,7 @@
 %   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.
+%   version 2005/12/01 or later.
 %
 %   The C.D.P. Bundle has the LPPL maintenance status
 %     "author-maintained".
@@ -31,14 +32,16 @@
 % \fi
 %
 % \def\filename{cdpbundl.dtx}
-% \def\fileversion{0.34}
-% \def\filedate{2006/01/01}
-% \def\docdate {2006/01/01}
-% \def\doclongdate{January~1, 2006}
+% \def\fileversion{0.36}
+% \def\filedate{2015/02/08}
+% \def\docdate {2015/02/08}
+% \def\doclongdate{February~8, 2015}
 %
-% \CheckSum{4829}
+% \CheckSum{4984}
 %
-% \changes{0.30}{2001 Jul 01}{First release of the C.D.P. Bundle}
+% \DeclareRobustCommand*{\Bundle}{C.D.P. Bundle}
+%
+% \changes{0.30}{2001 Jul 01}{First release of the \Bundle}
 % \changes{0.31}{2001 Dec 01}{Added support for the \protect\opz{usePS}
 %   option in the \protect\packlass{\protect\cdpaddon} package}
 % \changes{0.32}{2002 Jul 01}{Removed support for the \protect\opz{usePS}
@@ -46,13 +49,39 @@
 % \changes{0.33}{2005 Jan 01}{Reorganized code of the
 %   \protect\packlass{\protect\articoletteracdp} class and of the
 %   \protect\packlass{\protect\cdpaddon} package to make it compatible
-%   with the \protect\packlass{\protect\hyperref} package}
+%   with the \protect\packlass{\protect\HyperRef} package}
 % \changes{0.34}{2006 Jan 01}{Improved interaction with the
-%   \protect\packlass{\protect\hyperref} package}
+%   \protect\packlass{\protect\HyperRef} package}
 % \changes{0.34}{2006 Jan 01}{Corrected positioning of floats
 %   in float pages}
 % \changes{0.34}{2006 Jan 01}{Added \protect\texttt{\protect\bslash place}
 %   command}
+% \changes{0.35}{About 2013}{Never publicly released.  Some of the changes 
+%   listed below for vers.~0.36 were actually introduced in this version.}
+% \changes{0.36}{2015 Feb 08}{Added \protect\texttt{\protect\bslash
+%   OpeningSequence} command and related macros, in part.\ 
+%   the \protect\texttt{\protect\bslash ChosenMakeOpening} hook.}
+% \changes{0.36}{2015 Feb 08}{Added \protect\texttt{\protect\bslash
+%   ClosingSequence} command and related macros, in particular
+%   \protect\texttt{\protect\bslash ChosenMakeClosing} and
+%   \protect\texttt{\protect\bslash ChosenMakeSignature}.}
+% \changes{0.36}{2015 Feb 08}{Eventually added functionality to the
+%   \protect\packlass{\protect\cdpaddon} package to support user-defined
+%   letterheads.}^^A
+% \changes{0.36}{2015 Feb 08}{Added \protect\relax the
+%   \protect\opz{signaturerule} option, and its related stuff
+%   (the \protect\texttt{\protect\bslash signaturerule} command,
+%   the \protect\texttt{\protect\bslash signaturerulewidth} parameter),
+%   to support rules that mark where to sign by hand.}
+% \changes{0.36}{2015 Feb 08}{Delegated to a new command
+%   (\protect\texttt{\protect\bslash foldingtagrule}) the task of drawing 
+%   the sign that shows where the sheet is to be folded.}
+% \changes{0.36}{2015 Feb 08}{Removed the \protect\packlass{\protect\adiseal}
+%   package and the \protect\packlass{\protect\lettcdpadi} document class.}
+% \changes{0.36}{2015 Feb 08}{Tidied up in several points the code of the
+%   \protect\packlass{\protect\cdpaddon} package.}
+% \changes{0.36}{2015 Feb 08}{Added \protect\packlass{\protect\cdpbabel}
+%   package and related language definition files for English and Italian.}
 %
 %% \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
@@ -102,13 +131,19 @@
 % \newcommand*{\adiseal}{adiseal}
 % \newcommand*{\lettcdpadi}{lettcdpadi}
 % \newcommand*{\cdpaddon}{cdpaddon}
-% \newcommand*{\hyperref}{hyperref}
+% \newcommand*{\cdpbabel}{cdpbabel}
+% \newcommand*{\babel}{babel}
+% \newcommand*{\HyperRef}{hyperref}
+% \newcommand*{\pictee}{pict2e}
 % \newcommand*{\epsfig}{epsfig}
+% \newcommand*{\cdpnamesenglish}{cdpnamesenglish.ldf}
+% \newcommand*{\cdpnamesitalian}{cdpnamesitalian.ldf}
 % \newcommand*{\example}{cdpshues-example.def}
 % \newcommand*{\epson}{epson-stylus-740.def}
 % \newcommand*{\hplj}{hp-laserjet-4500.def}
 % \newcommand*{\cdpshues}{cdpshues.cfg}
-% \newcommand*{\textoken}[1]{\( \langle\mbox{\normalfont #1}\rangle \)}
+% \newcommand*{\textoken}[1]{\(\langle\mbox{\normalfont #1}\rangle\)}
+% \newcommand*{\param}[1]{\(\mbox{\##1}\leftarrow {\,}\)}
 % \makeatletter
 % \newcommand*{\myspecialindex}[2]
 %    {\special@index{#1\actualchar#2\encapchar main}}
@@ -116,49 +151,69 @@
 % \newcommand*{\counterindex}[1]{\myspecialindex{#1}{{\string\ttfamily
 %    \space #1} (counter)}\index{counters:\levelchar{\protect\ttfamily
 %    #1}\encapchar usage}}
-% \newcommand*{\optuseindex}[1]{\SortIndex{#1}{\protect\opz{#1}
+% \newcommand*{\optuseindex}[1]{\SortIndex{#1}{\protect\opz{#1}^^A
 %    (option)\encapchar usage}\index{options:\levelchar
 %    \protect\opz{#1}\encapchar usage}}
 % \newcommand*{\opz}[1]{{\normalfont\ttfamily #1}}
 % \newcommand*{\iopz}[1]{$\mbox{\opz{#1}}\optuseindex{#1}}
 % \newcommand*{\eopz}[1]{\mathbin{|}\mbox{\opz{#1}}\optuseindex{#1}}
 % \newcommand*{\fopz}{$}
-% \newcommand*{\packlass}[1]{{\normalfont\ttfamily #1}}
+% \newcommand*{\packlass}[1]{{\normalfont\sffamily #1}}
 % \newcommand*{\filedir}[1]{{\normalfont\ttfamily #1}}
 % \newcommand*{\env}[1]{{\normalfont\ttfamily #1}}
 % \newcommand*{\cnt}[1]{{\normalfont\ttfamily #1}}
 % \newcommand*{\sty}[1]{{\normalfont\ttfamily #1}}
 % \newcommand*{\eqref}[1]{(\ref{#1})}
+% \newcommand*{\strongemph}[1]{\textbf{#1}}
+% \newcommand*{\zerolistvertspaces}{^^A
+%   \setlength{\parskip}{0pt}^^A
+%   \setlength{\topsep}{\parskip}^^A
+%   \setlength{\partopsep}{\parskip}^^A
+% }
+% \newcommand*{\closeofsentencespace}{\spacefactor \sfcode `. \space}
 %
-% \DeclareFixedFont{\lhnss}{OT1}{cmss}{m}{n} {12}
-% \DeclareFixedFont{\lhbss}{OT1}{cmss}{m}{n} {17}
-% \DeclareFixedFont{\lhrm} {OT1}{cmr} {m}{n} {9}
-% \DeclareFixedFont{\lhit} {OT1}{cmr} {m}{it}{9}
-% \DeclareFixedFont{\lhtt} {OT1}{cmtt}{m}{n} {9}
+% \DeclareFixedFont{\lhnss}{T1}{cmss}{m}{n} {12}
+% \DeclareFixedFont{\lhbss}{T1}{cmss}{m}{n} {17}
+% \DeclareFixedFont{\lhrm} {T1}{cmr} {m}{n} {9}
+% \DeclareFixedFont{\lhit} {T1}{cmr} {m}{it}{9}
+% \DeclareFixedFont{\lhtt} {T1}{cmtt}{m}{n} {9}
 %
 %
 %
 % \title{
-%    The C.D.P.~Bundle\thanks{This file has version
+%    The \Bundle\thanks{This file has version
 %    \fileversion, release date \filedate;
 %    last documentation update: \docdate.
-%    Copyright \copyright~1999--2006 by G.~Mezzetti
+%    Copyright \copyright~1999--2015 by G.~Mezzetti
 %    (see page~\pageref{S:Copy}).}
 % }
 % \author{G. Mezzetti}
 % \date{\doclongdate}
 %
+% \makeatletter
+%   \@ifundefined{hypersetup}{}{
+%     \hypersetup{
+%       pdftitle        = {The C.D.P. Bundle},
+%       pdfauthor       = {G. Mezzetti},
+%       pdfsubject      = {Documentation of the C.D.P. Bundle},
+%       pdfkeywords     = {letter, letterhead},
+%       pdfcreationdate = {D:20150208120000},
+%       pdfmoddate      = {D:20150208120000}
+%     }
+%   }
+% \makeatother
+%
 % \maketitle
 %
 % \begin{abstract}
 %    A bundle of \LaTeX\ (former \LaTeXe) classes and packages is
-%    described, which is used by the \emph{Coordinamento dei Dottorandi e
+%    described, which was used by the \emph{Coordinamento dei Dottorandi e
 %    dei Dottori di Ricerca dell'Universit\`{a} di Padova} (a free and
 %    informal association of Ph.D.  students and Ph.D.'s at the
 %    university of Padua, Italy) to write its ``official'' letters.
-%    These classes and packages take care of formatting the letters as
+%    These classes and packages took care of formatting the letters as
 %    required by the standards of this association; in particular, they
-%    make it very easy to include its seal, both in black-and-white and
+%    made it very easy to include its seal, both in black-and-white and
 %    in color, at the top of pages.
 % \end{abstract}
 %
@@ -175,14 +230,14 @@
 %    \label{S:Copy}
 %    \vspace{-\parskip}
 %
-%    Copyright \copyright~1999--2006 by Gustavo \textsc{Mezzetti}.  All
+%    Copyright \copyright~1999--2015 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 ``C.D.P.  Bundle''.
+%    This file is part of a work named ``\Bundle''.
 %
-%    The C.D.P. Bundle may be distributed and/or modified under the
+%    The \Bundle\ 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
@@ -191,12 +246,12 @@
 %      http://www.latex-project.org/lppl.txt
 %    \end{list}
 %    and version~1.3 or later is part of all distributions of \LaTeX\
-%    version 2003/12/01 or later.
+%    version 2005/12/01 or later.
 %
-%    The C.D.P. Bundle has the LPPL maintenance status ``author-maintained''.
+%    The \Bundle\ has the LPPL maintenance status ``author-maintained''.
 %
-%    The file \filedir{manifest.txt} included in the C.D.P. Bundle
-%    specifies what the C.D.P. Bundle consists of; more precisely,
+%    The file \filedir{manifest.txt} included in the \Bundle\ 
+%    specifies what the \Bundle\ 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.
@@ -205,23 +260,23 @@
 %    by any means (\emph{e.g.}, photocopying, direct printing from the
 %    electronic version, and so on).
 %
-%    Note, anyway, that the distribution of the file \filedir{\filename}
-%    alone is ``distribution of only part of the Work'' in the sense of
-%    the \LaTeX\ Project Public License, and is not allowed: you must
-%    distribute it together with all other files in the C.D.P. Bundle
-%    (see the file \filedir{manifest.txt}).
+%    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{\filename}
+%    together with all other files listed in \filedir{manifest.txt},
+%    as explained in the file \filedir{manifest.txt} itself and also in
+%    Subsection~\ref{sS:License} on page~\pageref{sS:License}, to which you
+%    are referred for more information.
 %
-%    See Subsection~\ref{sS:License} on page~\pageref{sS:License} for
-%    more information.
-%
-% \section*{Author's addresses}
+% \section*{Author's address}
 %    \vspace{-\parskip}
 %
 %    The recommended way to contact the author is by e-mail; his address is:
 %
 %    \begin{list}{\setlength{\topsep}{0pt}}\item\relax
-%      \ttfamily
-%      mezzetti@math.unipd.it
+%      \href{mailto:gustavo.mezzetti@istruzione.it}
+%        {\nolinkurl{gustavo.mezzetti@istruzione.it}}
 %    \end{list}
 %
 %    Please include the \emph{exact} phrase \verb*|C.D.P. Bundle| in the
@@ -231,16 +286,6 @@
 %    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}\\
-%      Dip.\ di Matematica Pura e Applicata\\
-%      Via G.~Belzoni, 7\\
-%      I--35128\quad PADOVA\\
-%      Italy
-%    \end{list}
-%
 % \endgroup
 %
 %
@@ -254,19 +299,19 @@
 %
 %    The \emph{Coordinamento dei Dottorandi e dei Dottori di Ricerca
 %    dell'Universit\`a di Padova} (henceforth simply referred to as
-%    ``\emph{Coordinamento}'') is a free association of Ph.D.'s and Ph.D.
-%    students who took their degree, or are still studying, at the
+%    ``\emph{Coordinamento}'') was a free association of Ph.D.'s and Ph.D.
+%    students who took their degree, or were studying for it, at the
 %    University of Padova (Padua), Italy.  Discussing its precise nature is
-%    completely outside the scope of this document;\footnote{Readers who
-%    are interested in learning precisely what the \emph{Coordinamento}
-%    is should refer to the following web page:
-%    \texttt{http://www.dei.unipd.it/\~{}assdott/}.} the only thing that
-%    concerns us here is that it writes letters of a somewhat
-%    ``official'' kind, which, for this reason, must bear its letterhead
-%    on the top of their first page.  These classes and packages serve to
-%    prepare this kind of letters: they can print the letterhead, both in
-%    black-and-white and in color, depending on what the user requires,
-%    but they can do many other things too.
+%    completely outside the scope of this document; the only thing that
+%    concerns us here is that it wrote letters of a somewhat
+%    ``official'' kind, which, for this reason, had to bear its letterhead
+%    on the top of their first page.  The classes and packages herein described 
+%    were used for preparing this kind of letters, automatically taking care of
+%    printing the letterhead; but besides this, they incorporated much more
+%    functionality than the standard \packlass{letter} \LaTeX\ class,
+%    and it was precisely this additional functionality that proved useful
+%    also in more general contexts, thus determining the adoption of the
+%    \Bundle\ in (certain niches of) the \LaTeX\ community.
 %
 %    \subsection{Credits and disclaimer}
 %
@@ -319,17 +364,60 @@
 %    format; if you are not a \LaTeX\ hacker, this part will not mean
 %    anything to you.
 %
-%    \subsubsection{English, of course!}
-%
-%    This document, as you can see, is written in English, although the
-%    software it describes is intended mainly for Italian users, and was
-%    actually developed for a specific application limited to an Italian
-%    university (Padua).  Previous versions of this document used to
-%    contain in this place a section that, in a somewhat apologetic tone,
-%    offered various reasons in support of the choice of English.  Since
-%    the inclusion of the C.D.P.  Bundle in the Comprehensive \TeX\ Archive
-%    Network, however, there is no longer need to justify what now looks
-%    simply an obliged choice, due to the international nature of the CTAN.
+%    \subsection{About this release: a provisional patch}
+%
+%    The \Bundle\ was essentially written between 1999 and 2000 (for
+%    an Italian audience), and even at that time it contained code that was
+%    already deprecated; even worse, its design was flawed since the
+%    beginning, because it had been conceived for a specific and limited
+%    application (the letters of the C.D.P., exactly), and was adapted for
+%    more general use only as an afterthought.
+%
+%    A thorough redesign would therefore be needed; on the other hand, some
+%    users have suggested, or asked for, improvements and additions, in
+%    particular for what concerns the use of the bundle with other
+%    languages besides Italian, that can be implemented rather easily by
+%    means of provisional patches.  I~have already been deferring the
+%    introduction of these comparatively harmless enhancements for five
+%    years, waiting for the right moment to undertake the task of
+%    redesigning the bundle from scratch, but now I~have resolved to simply 
+%    patch up the existing version.
+%
+%    The macros presented in this document, therefore, are far from being 
+%    optimal: no serious attempt has been made to remove ``fossil'' code, nor 
+%    to bring it up to date with modern \LaTeX\ usage.  The only exception to 
+%    this is a small change that has been made to the fonts used to print the 
+%    letterhead of the \emph{Coordinamento}, switching them from OT1 encoding 
+%    to~T1---because this just required hitting the \meta{DEL} key half a dozen 
+%    of times!~^^A ( paren match
+%    ;-)\closeofsentencespace Of course, nobody will 
+%    care about this, since the least likely reason for which you might want to 
+%    use the \Bundle\ is to produce that letterhead.  For this same 
+%    motive, essentially, I~have also removed the \packlass{\adiseal} package 
+%    and the \packlass{\lettcdpadi} document class, of which, probably, nobody 
+%    besides me even remembers the purpose.
+%
+%    Though\marginpar{\hfill\strongemph{$*{*}*\;$WOW!!$\;*{*}*$}},
+%    ^^A Yes, I know, I should use \textasteriskcentered...
+%    \strongemph{good news} are coming for all those users who asked 
+%    for a means to \strongemph{customize the letterhead} produced by the 
+%    \Bundle: a reasonably viable method for doing so has been provided
+%    at last!~:-D\closeofsentencespace  The method requires the use 
+%    of the \packlass{\cdpaddon} package, passing in the new option 
+%    \opz{customletterhead}.  You specify the contents of your custom head and 
+%    foot by means of two new environments, called \env{customletterhead} and 
+%    \env{customletterfoot}, respectively, which are similar, to a certain 
+%    extent, to the \env{minipage} environment.  This should give you maximum 
+%    freedom in designing the letterhead, whilst adopting an interface you are 
+%    surely well familiar with.
+%    See Subsection~\ref{sS:Customization} for more information.
+%
+%    Another nifty feature is the ability to draw a thin rule to guide your
+%    hand in signing your letters: you ask for this behavior by passing the new
+%    \opz{signaturerule} option to the \packlass{\letteracdp} document class.
+%    See Subsection~\ref{sS:Options} for more information.
+%
+%    Sorry, but for now I~cannot offer any more.
 %
 %
 %
@@ -346,16 +434,16 @@
 %    how to generate this documentation; partial instructions on how to use
 %    the classes and packages contained in the bundle can be found
 %    in several documents written by the author
-%    \cite{tutti,esempi,etichette,novita,nts,ver028,adi,cdpaddon,ver031}, but
-%    a systematic user's manual is no longer foreseen.~\mbox{:-(}^^A ) match
-%    \spacefactor\sfcode`.  \space
+%    \cite{tutti,esempi,etichette,novita,nts,ver028,cdpaddon,ver031,ver036},
+%    but a systematic user's manual is no longer foreseen.~\mbox{:-(}^^A ) match
+%    \closeofsentencespace
 %    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 another person.
 %
-% \section{Installing the C.D.P. Bundle and generating this documentation}
+% \section{Installing the \Bundle\ and generating this documentation}
 %
-%    As usual for \LaTeX\ distributions, the C.D.P. Bundle is
+%    As usual for \LaTeX\ distributions, the \Bundle\ is
 %    distributed in the form of a \filedir{.dtx} file, namely
 %    \filedir{cdpbundl.dtx}, and an accompanying \filedir{.ins} file,
 %    namely \filedir{cdpbundl.ins}.
@@ -367,14 +455,15 @@
 %    input files:
 %    \begin{quote}
 %      \ttfamily
-%      \adiseal.sty\\
 %      \articoletteracdp.cls\\
 %      \cdpaddon.sty\\
+%      \cdpbabel.sty\\
+%      \cdpnamesenglish\\
+%      \cdpnamesitalian\\
 %      \example\\
 %      \cdpshues\\
 %      \epson\\
 %      \hplj\\
-%      \lettcdpadi.cls\\
 %      \letteracdp.cls
 %    \end{quote}
 %    To finish the installation, move them into a \LaTeX\ input
@@ -387,15 +476,18 @@
 %    of the file \filedir{cdpbundl.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 hold 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.
+%    directories reserved to hold your private classes and packages.
+%
+%    Note that the TDS-compliant directory where the above files should be
+%    put is
+%    \begin{quote}
+%      \texttt{tex/latex/cdpbundl/}
+%    \end{quote}
 %
 %    \subsection{Configuring the \packlass{\cdpaddon} package}
 %    \label{sS:config}
 %
-%    The \packlass{\cdpaddon} package is the part of the C.D.P. Bundle
+%    The \packlass{\cdpaddon} package is the part of the \Bundle\ 
 %    that takes care of coloring the C.D.P.  seal, which appears in
 %    black-and-white if you don't load this package.  Experience by trial
 %    and error has shown that some configuration work may be necessary in
@@ -441,7 +533,7 @@
 %    best to use ``direct'' color models like \texttt{rgb} or
 %    \texttt{cmyk}, that allow you to drive the printer with precision:
 %    after all, it is exactly for this purpose that you are writing the
-%    file!  The other two definition files included in the C.D.P. Bundle
+%    file.  The other two definition files included in the \Bundle\ 
 %    illustrate the use of these color models.
 %
 %    \subsubsection{Selecting a color definition file via an option}
@@ -454,19 +546,19 @@
 %    \langle\textit{bare file name}\rangle \) is the name of the
 %    definition file you want to load \emph{without} the extension
 %    \filedir{.def}.  For example, to load a file called
-%    \filedir{acme-wylejet.def}, you pass the option
-%    \opz{printer:acme-wylejet}.  Explicitly, you would write
-%    \begin{verbatim}\usepackage[printer:acme-wylejet]{cdpaddon}\end{verbatim}
+%    \filedir{acme-wilejet.def}, you pass the option
+%    \opz{printer:acme-wilejet}.  Explicitly, you would write
+%    \begin{verbatim}\usepackage[printer:acme-wilejet]{cdpaddon}\end{verbatim}
 %    to load the \packlass{\cdpaddon} package and the color definitions
-%    suitable for the ACME WyleJet printer (the printer preferred by
+%    suitable for the ACME WileJet printer (the printer preferred by
 %    8~coyotes out of~10).  Similarly, to load the file
 %    \filedir{\example} you would write
 %    \begin{verbatim}\usepackage[printer:cdpshues-example]{cdpaddon}\end{verbatim}
 %    and so on.  Of course, you can still specify, as well, the other
 %    options listed in~\cite{cdpaddon}: for instance,
-%    \begin{verbatim}\usepackage[hypertext,printer:acme-wylejet]{cdpaddon}\end{verbatim}
+%    \begin{verbatim}\usepackage[hypertext,printer:acme-wilejet]{cdpaddon}\end{verbatim}
 %    activates the hyperlinks and selects the colors for the
-%    ACME WyleJet printer.
+%    ACME WileJet printer.
 %
 %    When no \opz{printer:}\ldots\ option is specified, a default
 %    definition file is loaded, as explained in the next section.  For
@@ -500,7 +592,7 @@
 %    your configuration file, because the effect of any other command is
 %    undefined.
 %
-%    The \filedir{\cdpshues} file included in the C.D.P.  Bundle contains
+%    The \filedir{\cdpshues} file included in the \Bundle\ contains
 %    comments that help you to modify it in order to declare your
 %    personal default color definition file.  The recommended way of
 %    doing this is:
@@ -524,81 +616,184 @@
 %    programmed to read the color definitions from a file called
 %    \filedir{cdpshues.def}, and this name was hard-coded in the package.
 %    To maintain compatibility with this version, the file
-%    \filedir{\cdpshues} included in the C.D.P. Bundle designates as the
+%    \filedir{\cdpshues} included in the \Bundle\ designates as the
 %    default color definition file exactly a file named
 %    \filedir{cdpshues.def}.  Consequently, if you  install the supplied
 %    files without making any change to them, the \packlass{\cdpaddon}
 %    package will continue to exhibit the old behavior, reading the
 %    legacy \filedir{cdpshues.def} file if you have one installed, and
 %    adopting the emergency colors otherwise.  Note that no actual
-%    \filedir{cdpshues.def} file is included in the C.D.P. Bundle.
-%
-%    \subsection{The image of the ADI seal}
-%
-%    The C.D.P. Bundle does \emph{not} include the file containing the
-%    image of the ADI seal.  The reason for this is purely legal: I~do
-%    not own the copyright for the ADI seal, so I have no right to
-%    distribute it under a license of my choice.  But of course, without
-%    this file it is impossible for the \packlass{\adiseal} package, the
-%    part of the C.D.P. Bundle that has this task, to print, or display,
-%    the seal.  Since this is just a legal problem and not a \TeX nical one, I
-%    cannot foresee how long it will take to solve it; perhaps I'll
-%    never find a solution, because the problem does not depend on
-%    me.
-%
-%    However, by default the \packlass{\adiseal} package does \emph{not}
-%    draw the ADI seal, but simply a placeholder; it will try to draw
-%    the seal only if explicitly requested via the \opz{usepixmap} option
-%    (see~\cite{adi}).  This means that, by default, the package does
-%    \emph{not} need the file with the image of the ADI seal, and will
-%    try to access it only if invoked with the \opz{usepixmap} option;
-%    moreover, this option will be ignored if the file cannot be found.
-%    In conclusion, the \packlass{\adiseal} package can recover
-%    gracefully even if the file is absent.
-%
-%    The \packlass{\adiseal} package expects to find the image of the ADI
-%    seal in a file in Encapsulated PostScript (EPS) format called
-%    \filedir{\adiseal.eps}, unless PDF output is being generated, in
-%    which case a file in Portable Document Format (PDF) named
-%    \filedir{adiseal.pdf} is searched for instead.  The image should be
-%    exactly \( 60\,\mbox{bp} \) wide and \( 42\,\mbox{bp} \) tall;
-%    larger images will be clipped, smaller images will not be well
-%    aligned.  The resolution is not fixed by the \packlass{\adiseal}
-%    package, but of course the best results are obtained when it matches
-%    the target printer resolution.  I don't think that with this
-%    information you will be able to manifacture the correct image by
-%    yourself, but at least you can check whether a file you have got does
-%    (not) fit!
-%
-%    Of course, even if I cannot distribute it under the \LaTeX\
-%    Project Public License, still I have prepared and made available on
-%    the Web an ``official'' \filedir{\adiseal.eps} file (why didn't you
-%    say it before, you'll say!): it can be found in
-%    \begin{quote}
-%      \ttfamily
-%      \noindent
-%      \rlap{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/adiseal.eps}
-%    \end{quote}
-%    Its resolution is \( 300\,\mbox{dpi} \), both vertical and
-%    horizontal; the image is 250 pixels wide and 175 pixels tall, which,
-%    at this resolution, correspond exactly to \( 60\,\mbox{bp} \) by \(
-%    42\,\mbox{bp} \).  Again, I am sorry that you need to download this
-%    file separately, but\ldots
-%
-%    I have also prepared a special enhanced variation of the
-%    \filedir{\adiseal.eps} file for use with O\kern-.03em
-%    z\kern-.15em\TeX, Andrew Trevorrow's implementation of \TeX\ for the
-%    Macintosh.  This enhanced file enables O\kern-.03em z\kern-.15em\TeX\
-%    to display the seal on its integrated previewer, and to print it
-%    also on non-PostScript printers.  To obtain this file, ask it
-%    directly to me by e-mail; my address is:
-%    \begin{quote}
-%      \ttfamily
-%      mezzetti@math.unipd.it
-%    \end{quote}
-%    Perhaps, in the future, I shall erect a mail filter to protect
-%    myself from junk-mail, so be sure to cite the word
-%    \texttt{\adiseal.eps} in the \emph{subject} of your message.
+%    \filedir{cdpshues.def} file is included in the \Bundle.
+%
+%    \subsection{Defining the captions for unsupported languages}
+%
+%    Like many other document classes and packages, the classes and
+%    packages of the \Bundle\ mark up some portions of the output they
+%    produce by adding certain descriptive strings, that, by default, are
+%    written in Italian.  For example, when you have requested the
+%    \sty{headings} page style, the name of the addressee, which is printed
+%    atop pages, is preceded by the string ``\emph{A:}'' (=~``To:'');
+%    similarly, when you issue the command "\tableofcontents" in a documents
+%    that adopts the \packlass{\articoletteracdp} document class, the table it
+%    produces is titled ``\emph{Sommario}'' (=~``Contents''); and so on.
+%
+%    When the \Bundle\ was used only by the members of the
+%    \emph{Coordinamento}, the Italian defaults it provided for those captions
+%    were, of course, quite adequate; as long as its use remained circumscribed
+%    to the Italian \LaTeX\ community, they were still acceptable; but now, 
+%    questions about how to adapt the \Bundle\ to foreign languages have 
+%    begun to be asked in some Internet forums by users around the world,
+%    pushing me to reconsider the matter.
+%
+%    Of course, the Italian captions are not (nor they have ever been)
+%    ``hard-wired'' in the code: they are defined by macros that follow the
+%    usual naming conventions ("\headtoname", "\contentsname", and so on).
+%    Thus, it's only a matter of redefining these ``hooks'' to suit the target
+%    language.  However, it would be desirable to have some standard
+%    definitions set for each language; but unfortunately, this cannot be 
+%    attained just by loading the \packlass{\babel} package, for two reasons.
+%    In the first place, there are some captions that are specific to the
+%    \Bundle\ and are therefore not cared for by the \packlass{\babel}
+%    package: for example, the (optional) subject of a letter is preceded by
+%    the expansion of "\subjectname" (which is ``\emph{Oggetto:}'' in Italian
+%    and should be ``Subject:'' in English), a hook the
+%    \packlass{\babel} package knows nothing about.  Secondarily, even for
+%    those hooks that are standard, sometimes the definition provided by the
+%    \packlass{\babel} package seems (at least to me) not adequate for a
+%    letter; in particular, alas, if you load \packlass{\babel} with the
+%    \opz{italian} option (as you ordinarily do when you are writing in
+%    Italian), it actually \emph{cancels} the definitions preset by the
+%    \Bundle, substituting for them strings that I~deem more suitable for
+%    articles or books, for which they are indeed intended, than for letters
+%    (for example, \( "\contentsname" \to \mbox{``\emph{Indice}''} \)
+%    in \packlass{\babel}, instead of
+%    \( "\contentsname" \to \mbox{``\emph{Sommario}''} \), as defined by the
+%    \Bundle;
+%    \( "\refname" \to \mbox{``\emph{Riferimenti bibliografici}''} \) 
+%    in \packlass{\babel},
+%    instead of \( "\refname" \to \mbox{``\emph{Testi citati}''} \), as
+%    I~prefer; etc.).\footnote{I~do not insist on these captions being defined
+%    in the way the \Bundle\ currently uses: if the \LaTeX\  community
+%    thinks that such definitions are inadequate, I~have no objection at all,
+%    of course, to changing them.}
+%
+%    To supply a \emph{provisional} solution to this problem, a new component 
+%    has been added to the \Bundle: the \packlass{\cdpbabel} package.
+%    The idea is that, when using one of the document classes of the
+%    \Bundle, you load the \packlass{\cdpbabel} package \emph{instead of} 
+%    \packlass{\babel}, and let the former load the latter on your behalf;
+%    in this way, you offer it a chance to augment, or amend, the definitions 
+%    made by \packlass{\babel} itself.  This solution might seem inelegant
+%    (and admittedly it is), but the problem is more subtle than it may look
+%    at first sight, involving also compatibility issues with existing
+%    documents, and I~need to further investigate it.  Hopefully, a more
+%    satisfactory  scheme will be found for future releases.\footnote{More
+%    generally, it can be observed that the document classes of the
+%    \Bundle\ rely too heavily on ancillary packages, and that this reconfirms
+%    the ``patched-up'' nature of their design; just think of the entanglement
+%    between the \packlass{\letteracdp} class and the \packlass{\cdpaddon}
+%    package---a typical Italian \emph{pasticcio}, it should be admitted!}
+%
+%    In practice, all the \packlass{\cdpbabel} package has to do is (to load 
+%    \packlass{\babel} and) to issue an 
+%    "\addto{\captions"\meta{language}"}{"\ldots"}" command (or better, 
+%    one such command for each required \meta{language}), with ``\ldots''
+%    replaced by the appropriate redefinitions; the list, and the details,
+%    of such redefintions are of course dictated by \meta{language},
+%    so \packlass{\cdpbabel} takes them from what we will call a ``C.D.P.
+%    language definition file''.  This is a text file that, by convention,
+%    must be named \filedir{cdpnames}\meta{language}\filedir{.ldf},
+%    where \meta{language} is the name of the corresponding language option
+%    (for example,
+%    \begin{verbatim}\usepackage[english,italian]{cdpbabel}\end{verbatim}
+%    invokes both \filedir{\cdpnamesenglish} and  \filedir{\cdpnamesitalian},
+%    in this order), and which must adhere to the format shown
+%    in fig.~\ref{fig:cdpnames}.
+%
+%    \begin{figure}[tbp]
+%      \fontsize{9}{11}\selectfont
+%      \zerolistvertspaces
+%      \begin{flushleft}
+%        "\ProvidesFile{cdpnames"\meta{language}".ldf}["\meta{date \& version}"]"
+%      \end{flushleft}
+%      \begin{verbatim}
+%
+%\def\@cdpbabel@letter@names{%\end{verbatim}
+%      \begin{flushleft}
+%        "  \def\subjectname      {"\meta{Subject:}"}%"\\
+%        "  \def\registeredname   {"\meta{Registered}"}%"\\
+%        "  \def\registeredRRname {"\meta{Registered R.R.}"}%"\\
+%        "  \def\andccname        {"\meta{cc (in addresses)}"}%"\\
+%        "  \def\ccname           {"\meta{cc (at end of letters)}"}%"\\
+%        "  \def\enclname         {"\meta{Encl:}"}%"\\
+%        "  \def\PSname           {"\meta{P.S.:}"}%"\\
+%        "  \def\headtoname       {"\meta{To:}"}%"\\
+%        "  \def\lettername       {"\meta{Letter}"}%"
+%      \end{flushleft}
+%      \begin{verbatim}
+%  % More captions could be added in the future.
+%}
+%\def\@cdpbabel@artlet@names{%\end{verbatim}
+%      \begin{flushleft}
+%        "  \def\contentsname     {"\meta{Contents}"}%"\\
+%        "  \def\listfigurename   {"\meta{List of figures}"}%"\\
+%        "  \def\listtablename    {"\meta{List of tables}"}%"\\
+%        "  \def\refname          {"\meta{References}"}%"\\
+%        "  \def\indexname        {"\meta{Index}"}%"\\
+%        "  \def\figurename       {"\meta{Figure}"}%"\\
+%        "  \def\tablename        {"\meta{Table}"}%"\\
+%      \end{flushleft}
+%      \begin{verbatim}
+%  % More captions could be added in the future.
+%}
+%
+%\endinput\end{verbatim}
+%      \caption{Contents of a \filedir{cdpnames}\meta{language}\filedir{.ldf} 
+%        file}
+%      \label{fig:cdpnames}
+%    \end{figure}
+%
+%    As you can see, a ``C.D.P. language definition file'' must define two 
+%    macros, named "\@cdpbabel@letter@names" and "\@cdpbabel@artlet@names",
+%    respectively: in the first you put the redefinitions that should be
+%    added to "\captions"\meta{language} when only the \packlass{\letteracdp}
+%    class has been loaded; in the second you list the additional redefinitions
+%    that apply if the \packlass{\articoletteracdp} class is loaded too;
+%    and that's all.  The listing shown in fig.~\ref{fig:cdpnames} details exactly
+%    what hooks need to be redefined when switching to another language;
+%    in principle, you must supply a suitable redefinition for each of them,
+%    but of course, when a hook is already defined by the \packlass{\babel}
+%    package in a way that you think suits, you may omit it from your list
+%    (or, perhaps better, comment it out).  Look at the two provided files
+%    for inspiration, and in particular at \filedir{\cdpnamesenglish} for the
+%    intended meaning of the captions (which sould be quite obvious, however).
+%
+%    At present, the \Bundle\ ships with \emph{just two} such definition
+%    files included, namely \filedir{\cdpnamesitalian} for Italian
+%    and \filedir{\cdpnamesenglish} for English: for all other languages,
+%    you'll have to write and install appropriate files yourself.
+%    Needless to say, you are most welcome if, after doing so, you want to
+%    contribute your work for inclusion in future releases of the
+%    \Bundle.  Suggestions for amending the captions specified in the two
+%    existing files are most welcome too; for Italian, it is also a matter of
+%    updating the captions originally defined by the \packlass{\letteracdp}
+%    and \packlass{\articoletteracdp} document classes so that they remain
+%    ``in sync'' with those specified in the \filedir{\cdpnamesitalian} file.
+%
+%    It is hardly worth remarking that ``C.D.P. language definition files''
+%    naturally belong to the same directory where the \Bundle\ is located, 
+%    and \emph{not} to any directory of the \packlass{\babel} system!
+%
+%    One final word of clarification: two of the abovementioned captions,
+%    namely "\ccname"
+%    and "\andccname", look like they are the same, but they actually differ:
+%    the latter is prepended to \emph{addresses} to which the letter is sent
+%    as a ``carbon copy'', whilst the former is used when the names from those
+%    addresses are enumerated again \emph{at the end} of a letter (in the same
+%    place where enclosures are also listed).  In Italian, "\andccname"
+%    should expand to ``\emph{e~p.~c.}'', but "\ccname" just to
+%    ``\emph{P.~c.}''; hence, there is at least one language in which the
+%    distinction is relevant.
 %
 %    \subsection{Documentation}
 %
@@ -612,14 +807,48 @@
 %    distribution); then pass \filedir{\cdpbundl.dtx} through \LaTeX\
 %    twice more.
 %
-% \section{How to use the C.D.P. Bundle}
+%    Starting with version 0.36 of the \Bundle, a (quite trivial!\@) makefile
+%    that ``knows'' how to produce the documentation is offered along with the 
+%    Bundle itself.  Although it is not a required part of the distribution
+%    (as per LPPL\@), you may find that some distributors supply it all the
+%    same (I~hope the CTAN\@ sites will do so).  With this makefile in the same 
+%    directory as \filedir{\filename}, the shell command
+%    \begin{quote}
+%      \ttfamily
+%      make doc
+%    \end{quote}
+%    will take all the necessary actions to produce the full documentation
+%    (in PDF\@; the modifications you need to introduce into the makefile
+%    in order to obtain DVI\@ output should be quite obvious, however).
+%
+%    The same makefile can also be used to extract the various class, package,
+%    and ancillary (definition and configuration) files: simply issue the
+%    command
+%    \begin{quote}
+%      \ttfamily
+%      make code
+%    \end{quote}
+%    at the shell prompt; whereas
+%    \begin{quote}
+%      \ttfamily
+%      make
+%    \end{quote}
+%    will \emph{both} extract the code files \emph{and} typeset the
+%    documentation.  Type
+%    \begin{quote}
+%      \ttfamily
+%      make help
+%    \end{quote}
+%    for more information.
+%
+% \section{How to use the \Bundle}
 %
-%    The C.D.P. Bundle contains three \LaTeX\ document classes, namely
-%    \packlass{\letteracdp}, \packlass{\articoletteracdp}, and
-%    \packlass{\lettcdpadi}, two \LaTeX\ packages, called
-%    \packlass{\adiseal} and \packlass{\cdpaddon}, and some definition
-%    and configuration files pertaining to the \packlass{\cdpaddon}
-%    package.  As already said, the actual purpose of this section is not
+%    The \Bundle\ v.~0.36 contains two \LaTeX\ document classes,
+%    namely \packlass{\letteracdp} and \packlass{\articoletteracdp},
+%    and two helper \LaTeX\ packages, called \packlass{\cdpaddon}
+%    and \packlass{\cdpbabel}, plus a certain number of definition
+%    and configuration files related to these packages.
+%    As already said, the actual purpose of this section is not
 %    to explain you how to use these macro files, but only to give you
 %    references to documents where you can find the explanations.
 %
@@ -642,8 +871,14 @@
 %<*gobble>
 % \fi
 %    \begin{figure}[tbp]
+%      \zerolistvertspaces
 %      \begin{verbatim}\documentclass[boldsubject,italicsignature,smartindent]{letteracdp}
 %% Of course, the above options are a matter of personal taste...
+%\usepackage[T1]{fontenc} % as it is now customary
+%% Since we are writing in English, we need to redefine some captions;
+%% the following package automatically takes care of this:
+%\usepackage[english]{cdpbabel}
+%% Presently only two languages are supported: "english" and "italian".
 %
 %% Name, address and signature of the sender (the name is optional):
 %\name{Revinu Jitis Drofnats}
@@ -654,13 +889,9 @@
 %    Haga Alto, CA~94321 (U.S.A.)
 %}
 %\signature{R.~J. Drofnats\\Professor}
-%\date{January~1, 2006} % as usual, date is optional, default is \today
-%% Place where the letter is written (optional):
-%\place{St.\,Anford}
+%\date{February~8, 2015} % as usual, date is optional, default is \today
+%\place{St.\,Anford}     % place where the letter is written (optional)
 %
-%% Since we are writing in English, we redefine a couple of words:
-%\renewcommand*{\subjectname}{Subject:}
-%\renewcommand*{\headtoname}{To:}
 %% Uncomment the following declaration if you want running heads:
 %% \pagestyle{headings}
 %
@@ -704,15 +935,16 @@
 %    For instructions on how to use the \packlass{\articoletteracdp}
 %    class, see~\cite{novita}.
 %
-%    For instructions on how to use the \packlass{\adiseal} package and
-%    the \packlass{\lettcdpadi} class, see~\cite{adi}.
-%
 %    For instructions on how to use the \packlass{\cdpaddon} package,
 %    see~\cite{cdpaddon}.  Note, however, that this document describes an
 %    obsolete version, which lacks the ability to deal with several color
-%    definition files.
+%    definition files.  The use of the \packlass{\cdpaddon} package for 
+%    customizing the letterhead, though, is covered in~\cite{ver036}.
 %
-%    Please note that before using the C.D.P. Bundle you must read the
+%    For instructions on how to use the \packlass{\cdpbabel} package,
+%    see~\cite{ver036}.
+%
+%    Please note that before using the \Bundle\ you must read the
 %    following 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.
@@ -720,14 +952,14 @@
 %    \subsection{License}
 %    \label{sS:License}
 %
-%    The C.D.P. Bundle is \emph{not} in the public domain: its author,
+%    The \Bundle\ 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 C.D.P. Bundle may be distributed and/or modified under the
+%    The \Bundle\ 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
@@ -736,46 +968,47 @@
 %      http://www.latex-project.org/lppl.txt
 %    \end{quote}
 %    and version~1.3 or later is part of all distributions of \LaTeX\
-%    version 2003/12/01 or later.
+%    version 2005/12/01 or later.
 %
-%    The C.D.P. Bundle has the LPPL maintenance status ``author-maintained''.
+%    The \Bundle\ has the LPPL maintenance status ``author-maintained''.
 %
-%    The file \filedir{manifest.txt} included in the C.D.P. Bundle
-%    specifies what the C.D.P. Bundle consists of; more precisely,
+%    The file \filedir{manifest.txt} included in the \Bundle\ 
+%    specifies what the \Bundle\ 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 C.D.P. Bundle is unrestricted, provided that you
+%    The use of the \Bundle\ 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 C.D.P. Bundle.  The
-%    Copyright Holder provides the C.D.P. Bundle ``as is'', without
+%    There is absolutely no warranty for the \Bundle.  The
+%    Copyright Holder provides the \Bundle\ ``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 C.D.P. Bundle is with you.  Should the
-%    C.D.P. Bundle prove defective, you assume the cost of all necessary
+%    and performance of the \Bundle\ is with you.  Should the
+%    \Bundle\ 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 C.D.P. Bundle as permitted by the
+%    distribute and/or modify the \Bundle\ 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 C.D.P. Bundle or out of inability to
+%    arising out of any use of the \Bundle\ 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 C.D.P. Bundle to operate with any other programs),
+%    failure of the \Bundle\ 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{Options of the \packlass{\letteracdp} class}
+%    \label{sS:Options}
 %
 %    Of course, you load the \packlass{\letteracdp} class by means of the
 %    usual "\documentclass" declaration, which allows you to specify
@@ -843,16 +1076,25 @@
 %    option makes it appear in italic shape.  The default is
 %    \opz{uprightsignature}.
 %
+%    \item[\iopz{signaturerule}\eopz{nosignaturerule}\fopz]
+%    Drawing or not a thin rule to mark the spot where you should sign a
+%    letter is a matter of style that, as such, should apply to the whole
+%    document; for this reason, this behavior is requested by menas of an
+%    option, namely \opz{signaturerule}.  As you can guess, \opz{signaturerule}
+%    causes the rule to be drawn, while \opz{nosignaturerule}, which is defined
+%    for the sake of completeness, suppresses it.  Anyway, the rule is never
+%    drawn inside a \env{signatureenv*} environment; this includes signatures
+%    generated by the \mbox{$*$-form} of the "\closing" command.
+%    You can adjust the width of the rule by modifying, with "\setlength",
+%    the "\signaturerulewidth" rigid length.
+%
 %    \item[\iopz{noPS}\eopz{usePS}\fopz]
-%    The \opz{noPS} option requests that the CDP seal be typest using
-%    only the standard \LaTeX\ fonts, so that the output is printable on
-%    any kind of printer, even without a PostScript interpreter.  On the
-%    other hand, the \opz{usePS} option requests that it be printed using
-%    PostScript commands: this improves its graphical quality, but
-%    printing the seal will require a PostScript interpreter.  The
-%    default is \opz{noPS}.  \emph{Warning:} If you use this option with
-%    the \packlass{\cdpaddon} package, parts of the seal will be
-%    incorrectly drawn in black.
+%    These two options are obsolete (to say the least!\@) and should
+%    \emph{not} be used any longer.  If you want to improve the graphical
+%    quality of the seal, simply load the \packlass{\pictee} package in
+%    your document, along with the \packlass{\cdpaddon} package (of course, 
+%    if you do so, PostScript or PDF\@ printing will be needed to produce the 
+%    output).
 %
 %    \item[\iopz{indent}\eopz{noindent}\eopz{smartindent}\eopz{shortindent}\fopz]
 %    These options are used to specify the paragraph indentation, but
@@ -861,7 +1103,7 @@
 %    these options.  The \opz{indent} option sets the paragraph
 %    indentation, for letters, to one tenth of the text width,
 %    unless this amount looks too bad, in which case the indentation
-%    is set to 2~pica.  The \opz{noindent} option completely
+%    is set to 2~picas.  The \opz{noindent} option completely
 %    suppressess paragraph indentation within letters.  The \opz{smartindent}
 %    option sets the paragraph indentation, for letters, to the width
 %    of (the last line of) the salutation, unless this amount looks
@@ -887,16 +1129,254 @@
 %
 %    \end{description}
 %
+%    \subsection{Customizing the letterhead}
+%    \label{sS:Customization}
+%
+%    A new, long-awaited feature is available at last: it is now possible, 
+%    with reasonable ease, to customize the letterhead produced by the
+%    \env{letterhead} environment.~:-D\closeofsentencespace
+%    As a matter of fact, this customization has always been possible---the
+%    \env{letterhead} environment would have been completely useless
+%    otherwise---but instructions on how to carry it out were given uniquely
+%    in documents that were only privately circulated; moreover, these
+%    instructions required you to modify some of the internal commands of the
+%    \Bundle.  What the present version does is to provide a reasonable user
+%    interface for making these internal changes and (which is not less
+%    important) to document this interface.
+%
+%    The customization of the letterhead basically involves the following three
+%    steps:
+%
+%    \begin{enumerate}
+%
+%    \item
+%    First of all, you need to load the \packlass{\cdpaddon} package,
+%    which is part of the \Bundle, passing to it the (new) option
+%    \opz{customletterhead}.
+%
+%    \item
+%    The \packlass{\cdpaddon} package defines two environments, named
+%    \env{customletterhead} and \env{customletterfoot}, respectively,
+%    that can be used more or less like a \env{minipage} environment.
+%    You should put, in any place before the first letter (not entirely exact,
+%    but almost so: we'll refine this information underneath), a
+%    \env{customletterhead} environment holding the
+%    description of your letterhead.  Just pretend you are composing a
+%    \env{minipage} with your letterhead inside.
+%
+%    \item
+%    If you also want to customize the page footer (as it is ordinarily the
+%    case), define its contents inside a similarly placed
+%    \env{customletterfoot} environment.
+%    If you omit this step, the footer will be empty.
+%
+%    \end{enumerate}
+%
+%    \DescribeEnv{customletterhead}^^A
+%    \DescribeEnv{customletterfoot}^^A
+%    More formally, the \packlass{\cdpaddon} package makes two new environments
+%    available, named as stated above, that conform to the following syntax:
+%
+%    \begin{flushleft}
+%      "\begin{customletterhead}{"\meta{wdth}"}"\quad
+%        \meta{text}\quad
+%      "\end{customletterhead}"\\
+%      "\begin{customletterfoot}{"\meta{wdth}"}"\quad
+%        \meta{text}\quad
+%      "\end{customletterfoot}"
+%    \end{flushleft}
+%
+%    Both these environments typeset \meta{text} in a \env{minipage} with
+%    width \meta{wdth} and save the result in a box register specifically
+%    reserved for this purpose (each environment has its own, dedicated
+%    register); subsequently, if the \opz{customletterhead} option has been
+%    specified, the contents of these box registers are used in place of the
+%    header and footer ordinarily defined by the \packlass{\letteracdp}
+%    document class.  Note that the \packlass{\cdpaddon} package defines the
+%    \env{customletterhead} and \env{customletterfoot} environments in any
+%    case, \emph{independently} of which options you pass to it.
+%
+%    The contents specified inside \env{customletterhead} and
+%    \env{customletterfoot} will be horizontally centered in the header and
+%    footer boxes, respectively; these boxes are defined by the page layout,
+%    but normally their left and right edges coincide with those of the main
+%    text.  If the \meta{wdth} you have specified for the contents themselves
+%    exceeds the width available in the header\slash footer, they will stick
+%    out by the same amount of space on both sides (in brief: the contents are
+%    centered with "\hss" at both ends).  Normally, you pass "\textwidth" as
+%    the \meta{wdth} parameter\footnote{I~have long been in doubt whether to make
+%    \meta{wdth} an optional parameter, with default value equal to
+%    \texttt{\bslash textwidth}; eventually, I~decided for a syntax that
+%    parallels the syntax of the \env{minipage} environment, and should
+%    therefore be obvious to remember.} and align things as you prefer
+%    \emph{inside} the \env{minipage}, perhaps creating sub-boxes or using 
+%    \env{picture}s.
+%
+%    Coming to vertical alignment, the boxes produced by the
+%    \env{customletterhead}\slash\env{customletterfoot} environments are
+%    ``smashed'' down to null height and depth;
+%    for \env{customletterhead}, the bottom edge of the box
+%    is aligned with the baseline of the header, whilst for
+%    \env{customletterfoot} it is the top edge which is aligned
+%    with the baseline of the footer.  If you want the contents of
+%    \env{customletterhead} to sink below the baseline of the header,
+%    simply backspace vertically at their end, \emph{i.e.},
+%    use "\vspace{"\meta{dist}"}" with a negative \meta{dist},
+%    and the bottom edge of your custom header will be placed exactly
+%    \( \left|\meta{dist}\right| \) below the baseline of the header
+%    as defined by the general page layout.
+%    Similarly, a "\vspace{"\meta{dist}"}" with a negative \meta{dist}
+%    placed at the beginning of your custom footer will rise its top edge
+%    exactly \( \left|\meta{dist}\right| \) above the baseline of the footer
+%    defined by the general page layout.
+%
+% \iffalse
+%   Meta-comment: a <*gobble> guard is needed here to prevent the
+%   DocStrip program from putting the lines beginning with "%%" in the
+%   generated files.
+%<*gobble>
+% \fi
+%    \begin{figure}[tbp]
+%      \zerolistvertspaces
+%      \begin{verbatim}\documentclass
+%    [twoside,boldsubject,italicsignature,shortindent,signaturerule]
+%    {letteracdp}[2015/01/20]
+%\usepackage[T1]{fontenc}
+%\usepackage[english]{cdpbabel}
+%\usepackage[customletterhead]{cdpaddon}[2015/01/21]
+%\usepackage{url,lipsum}
+% 
+%\address{
+%    Gustavo \textsc{Mezzetti}\\
+%    \protect\url{gustavo.mezzetti@istruzione.it}
+%}
+%\signature{Gustavo Mezzetti}
+%\date{February~8, 2015}
+%\place{Padova}
+%
+%
+%
+%% Definition of your letterhead occurs here:
+%
+%\begin{customletterhead}{\textwidth}
+%    \centering \Huge
+%    My Huge Centered Letterhead
+%\end{customletterhead}
+%\begin{customletterfoot}{\textwidth}
+%    \raggedleft \tiny
+%    \ruleacrossheadorfoot
+%    My (almost unreadable) small print\\
+%    flushed against the right margin.
+%\end{customletterfoot}
+%
+%
+%
+%\begin{document}
+%
+%\begin{foldedletterhead}[Whom it may concern]
+%    {To whom it may concern}
+%    [My own letterhead, at last!]
+%
+%\makepresentation
+%\maketopdate\relax
+%
+%\lipsum[1-2]
+%
+%\makesignature
+%
+%\end{foldedletterhead}
+%
+%\end{document}\end{verbatim}
+%      \caption{How to customize the letterhead}
+%      \label{fig:customletter}
+%    \end{figure}
+% \iffalse
+%</gobble>
+% \fi
+%
+%    Fig.~\ref{fig:customletter} shows a sample input file for a letter with
+%    customized letterhead.  Note that, among the others, we load the
+%    \packlass{\cdpaddon} package with the \opz{customletterhead} option.
+%    Note also that the \env{customletterhead}\slash\env{customletterfoot}
+%    environments \emph{can} be placed in the preamble; this makes it very easy
+%    to create a definition file containing the description of your custom
+%    letterhead, to be subsequently loaded in your source files,
+%    or even to define your custom version of the \packlass{\letteracdp}
+%    and \packlass{\articoletteracdp} document classes.  For example, the three
+%    files \filedir{myletter.cls}, \filedir{myarticletter.cls}, and
+%    \filedir{mylogo.def}, whose contents are listed in
+%    fig.~\ref{fig:myletter}, \ref{fig:myarticletter}, and~\ref{fig:mylogo},
+%    respectively, together define two new classes, called \packlass{myletter}
+%    and \packlass{myarticletter}, that respectively parallel
+%    \packlass{\letteracdp} and \packlass{\articoletteracdp}, but produce the
+%    same letterhead as the file of fig.~\ref{fig:customletter}.
+%
+%    \begin{figure}[tbp]
+%      \zerolistvertspaces
+%      \begin{verbatim}\NeedsTeXFormat{LaTeX2e} % LaTeX2e is required!
+%\ProvidesClass{myletter}
+%              [2015/02/08 v0.01 (development)]
+%\DeclareOption*{\PassOptionsToClass{\CurrentOption}{letteracdp}}
+%\ProcessOptions\relax
+%\LoadClass{letteracdp}[2015/01/20]
+%\input{mylogo.def}
+%\endinput\end{verbatim}
+%      \caption{Contents of the \filedir{myletter.cls} file}
+%      \label{fig:myletter}
+%    \end{figure}
+%
+%    \begin{figure}[tbp]
+%      \zerolistvertspaces
+%      \begin{verbatim}\NeedsTeXFormat{LaTeX2e} % LaTeX2e is required!
+%\ProvidesClass{myarticletter}
+%              [2015/02/08 v0.01 (development)]
+%\DeclareOption*{\PassOptionsToClass{\CurrentOption}{articoletteracdp}}
+%\ProcessOptions\relax
+%\LoadClass{articoletteracdp}[2015/01/20]
+%\input{mylogo.def}
+%\endinput\end{verbatim}
+%      \caption{Contents of the \filedir{myarticletter.cls} file}
+%      \label{fig:myarticletter}
+%    \end{figure}
+%
+%    \begin{figure}[tbp]
+%      \zerolistvertspaces
+%      \begin{verbatim}\ProvidesFile{mylogo.def}[2015/02/08 v0.01 (development)]
+%
+%\RequirePackage[customletterhead]{cdpaddon}[2015/01/21]
+%
+%\begin{customletterhead}{\textwidth}
+%    \centering \Huge
+%    My Huge Centered Letterhead
+%\end{customletterhead}
+%\begin{customletterfoot}{\textwidth}
+%    \raggedleft \tiny
+%    \ruleacrossheadorfoot
+%    My (almost unreadable) small print\\
+%    flushed against the right margin.
+%\end{customletterfoot}
+%
+%\endinput\end{verbatim}
+%      \caption{Contents of the \filedir{mylogo.def} file}
+%      \label{fig:mylogo}
+%    \end{figure}
+%
+%    One final word: the \env{customletterhead}\slash\env{customletterfoot}
+%    environments save their contents in their respective box registers by
+%    means of a \emph{local} assignment, subject to ordinary scoping rules:
+%    this can be useful if you want to change the letterhead for just a single
+%    letter in a source file that contains many ones.
+%
+%    See~\cite{ver036} for more information.
+%
 % \StopEventually{
 %    \setcounter{secnumdepth}{0}
 %    \providecommand*\bysame{\leavevmode\hbox to3em{\hrulefill}\thinspace}
 %
 %    \clearpage
-%    \begin{thebibliography}{9}
+%    \begin{thebibliography}{99}
 %    \addcontentsline{toc}{section}{\refname}
 %
-%    \setcounter{enumiv}{-1}
-%
 %    \bibitem{LaTeXbook}
 %    L.~Lamport, \emph{\LaTeX---A Document Preparation System---User's
 %       Guide and Reference Manual}, 2nd~edition, Addison-Wesley,
@@ -906,49 +1386,47 @@
 %    G.~Mezzetti, \emph{Breve presentazione d'una classe \LaTeX, denominata
 %       \packlass{\letteracdp}, utile nella preparazione delle lettere del
 %       Coordinamento}, technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/presentazione.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/presentazione.tex}}
 %
 %    \bibitem{esempi}
 %    \bysame, \emph{Esempi d'uso della classe \packlass{\letteracdp}},
 %       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/esempi.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/esempi.tex}}
 %
 %    \bibitem{etichette}
 %    \bysame, \emph{Etichette degli indirizzi con la classe \packlass{\letteracdp}},
 %       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/etichett.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/etichett.tex}}
 %
 %    \bibitem{novita}
 %    \bysame, \emph{Grandi novit\`{a} per \packlass{\letteracdp}:
 %       arriva \packlass{\articoletteracdp}!}, technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/novita.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/novita.tex}}
 %
 %    \bibitem{nts}
 %    \bysame, \emph{Forse non tutti sanno che\ldots},
 %       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/nontuttisanno.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/nontuttisanno.tex}}
 %
 %    \bibitem{ver028}
 %    \bysame, \emph{Annuncio delle versioni 0.28 della classe \packlass{\letteracdp}
 %       e 0.08 della classe \packlass{\articoletteracdp}},
 %       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/ver0-28.tex}}
-%
-%    \bibitem{adi}
-%    \bysame, \emph{Come usare il pacchetto \packlass{\adiseal}
-%       (e la classe \packlass{lettcdpadi})},
-%       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/adisealistr.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/ver0-28.tex}}
 %
 %    \bibitem{cdpaddon}
 %    \bysame, \emph{Il pacchetto \packlass{\cdpaddon}},
 %       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/cdpaddonistr.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/cdpaddonistr.tex}}
 %
 %    \bibitem{ver031}
-%    \bysame, \emph{Annuncio della versione 0.31 del \emph{C.D.P. Bundle}},
+%    \bysame, \emph{Annuncio della versione 0.31 del \emph{\Bundle}},
 %       technical note downloadable from:\\
-%       \rlap{\texttt{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/ver0-31.tex}}
+%       \rlap{\url{http://www.math.unipd.it/\string~mezzetti/Gustavo/Ludic/CDP/ver0-31.tex}}
+%
+%    \bibitem{ver036}
+%    \bysame, \emph{The \Bundle\ version~0.36},
+%       in preparation.
 %
 %    \end{thebibliography}
 % }
@@ -974,9 +1452,11 @@
 %<*driver>
 %    \end{macrocode}
 %
-%    To begin with, we load the \packlass{ltxdoc} class.
+%    To begin with, we load the \packlass{ltxdoc} class and the 
+%    \packlass{\HyperRef} package.
 %    \begin{macrocode}
 \documentclass[a4paper]{ltxdoc}
+\usepackage[bookmarksnumbered,hyperindex=false]{hyperref}
 %    \end{macrocode}
 %    We now set a few typesetting options.
 %    First of all, we want a history listing and a full index, the latter
@@ -1022,6 +1502,7 @@
 %    \begin{macrocode}
 %</driver>
 %    \end{macrocode}
+%    \noindent\null\par
 %
 % \section{The code for the \packlass{\letteracdp} class}
 %
@@ -1049,12 +1530,12 @@
 %    will eventually be removed, I hope!
 %    \begin{macrocode}
 \ProvidesClass{letteracdp}
-              [2006/01/01 v0.34 (**incomplete**)]
+              [2015/02/08 v0.36 (**incomplete**)]
 %    \end{macrocode}
 %    Print a copyright message on the terminal, just below the name
 %    of the class.
 %    \begin{macrocode}
-\typeout{Copyright (C) 1999-2006 by Gustavo MEZZETTI,
+\typeout{Copyright (C) 1999-2015 by Gustavo MEZZETTI,
   all rights reserved.}
 %    \end{macrocode}
 %
@@ -1068,7 +1549,6 @@
 %    \end{macrocode}
 %    \end{macro}
 %
-%
 %    \subsection{Initial code}
 %
 %    \begin{macro}{\Coordinamento}
@@ -1078,7 +1558,7 @@
 %    \begin{macrocode}
 \newcommand*\Coordinamento{%
   Coordinamento dei Dottorandi e dei Dottori di Ricerca
-  dell'Universit\`a di Padova%
+  dell'Universit{\char "E0} di Padova%
 }
 %    \end{macrocode}
 %    \end{macro}
@@ -1099,7 +1579,7 @@
 %    Main font for letterhead is Computer Modern Sans Serif 12pt
 %    (LetterHead\slash Normal Sans Serif):
 %    \begin{macrocode}
-\DeclareFixedFont\@lh@nss{OT1}{cmss}{m}{n} {12}
+\DeclareFixedFont\@lh@nss{T1}{cmss}{m}{n} {12}
 %    \end{macrocode}
 %    \end{macro}
 %    \begin{macro}{\@lh@bss}
@@ -1107,28 +1587,28 @@
 %    Computer Modern Sans Serif 17pt (LetterHead\slash Bigger Sans
 %    Serif):
 %    \begin{macrocode}
-\DeclareFixedFont\@lh@bss{OT1}{cmss}{m}{n} {17}
+\DeclareFixedFont\@lh@bss{T1}{cmss}{m}{n} {17}
 %    \end{macrocode}
 %    \end{macro}
 %    \begin{macro}{\@lh@rm}
 %    Main font for footer: Computer Modern Roman 9pt
 %    (LetterHead\slash RoMan):
 %    \begin{macrocode}
-\DeclareFixedFont\@lh@rm {OT1}{cmr} {m}{n} {9}
+\DeclareFixedFont\@lh@rm {T1}{cmr} {m}{n} {9}
 %    \end{macrocode}
 %    \end{macro}
 %    \begin{macro}{\@lh@it}
 %    The words ``World Wide Web'' are printed in italics
 %    (LetterHead\slash ITalics):
 %    \begin{macrocode}
-\DeclareFixedFont\@lh@it {OT1}{cmr} {m}{it}{9}
+\DeclareFixedFont\@lh@it {T1}{cmr} {m}{it}{9}
 %    \end{macrocode}
 %    \end{macro}
 %    \begin{macro}{\@lh@tt}
 %    And finally, the web address is printed in teletype font
 %    (LetterHead\slash TeleType):
 %    \begin{macrocode}
-\DeclareFixedFont\@lh@tt {OT1}{cmtt}{m}{n} {9}
+\DeclareFixedFont\@lh@tt {T1}{cmtt}{m}{n} {9}
 %    \end{macrocode}
 %    \end{macro}
 %
@@ -1336,10 +1816,18 @@
 \@newrigidlength\signaturewidth
 %    \end{macrocode}
 %    \end{macro}
+%    \begin{macro}{\signaturerulewidth}
+%    The width of the rule drawn by the ``factory'' definition of
+%    "\signaturerule" (which is backed up in "\CDPFactorySignatureRule"):
+%    \begin{macrocode}
+\@newrigidlength\signaturerulewidth
+\setlength\signaturerulewidth{5cm}
+%    \end{macrocode}
+%    \end{macro}
 %    \begin{macro}{\foldedheight}
 %    There are macros that provide the ability to typeset letters that
 %    are going to be folded before being put into the envelopes; these
-%    macros assure that no text is typeset astride of the folding.  The
+%    macros ensure that no text is typeset astride of the folding.  The
 %    vertical distance from the upper edge of the \emph{paper} (not of
 %    the text) to the folding is kept in "\foldedheight".  A value of
 %    zero or less (\emph{e.g.}, $-"\maxdimen"$) prohibits folded letters:
@@ -1596,6 +2084,9 @@
 \@ifdefinable\startaddrlabel{}
 \@ifdefinable\stopaddrlabel{}
 \@ifdefinable\ifactuallabel{}
+\@ifdefinable\ChosenMakeOpening{}
+\@ifdefinable\ChosenMakeClosing{}
+\@ifdefinable\ChosenMakeSignature{}
 %    \end{macrocode}
 %
 %    \begin{macro}{\@lett@decl}
@@ -1728,6 +2219,13 @@
 \do\@end@letter@hook
 %    \end{macrocode}
 %    \end{macro}
+%    \begin{macro}{\@begin@block@or@and@hook}
+%    Vers.~0.36: new hook used in "\@block@everypar" to support signature
+%    rules.
+%    \begin{macrocode}
+\do\@begin@block@or@and@hook
+%    \end{macrocode}
+%    \end{macro}
 %
 %    The following macros are defined only inside a \env{subject}
 %    environment.  We want that they cause an error if used outside of that
@@ -1846,7 +2344,7 @@
 %    \end{macrocode}
 %    \end{macro}
 %
-%    Four internal switches are defined next.
+%    Six internal switches are defined next.
 %    \begin{macrocode}
 \def\do#1{\@ifdefinable#1{\newif#1}}
 %    \end{macrocode}
@@ -1870,6 +2368,24 @@
 \do\if@do@fold@
 %    \end{macrocode}
 %    \end{macro}
+%    \begin{macro}{\if@making@labels@}
+%    Prior to version~0.36, the code for generating the address labels (that
+%    had been copied from the standard \packlass{letter} class) wrote to the
+%    \filedir{.aux} file the data concerning the addresses even when no labels
+%    were being produced.  This is totally useless.  Starting from
+%    version~0.36, the following conditional has been introduced in order to
+%    avoid this.
+%    \begin{macrocode}
+\do\if@making@labels@
+%    \end{macrocode}
+%    \end{macro}
+%    \begin{macro}{\if@signature@rule@}
+%    True if a typeset signature should be surmounted by a ``signature rule''
+%    intended to guide the signer's hand.  New in vers.~0.36 (2015 Feb~08).
+%    \begin{macrocode}
+\do\if@signature@rule@
+%    \end{macrocode}
+%    \end{macro}
 %    The other two switches cannot be explained here.  They are defined
 %    differently, without using "\newif", so that they are always changed
 %    "\global"ly.
@@ -1993,6 +2509,11 @@
 %        Set "\parindent" to the width of the last line of the salutation
 %        (\emph{i.e.}, the argument of "\opening" or "\makeopening"); if the
 %        salutation is not given, this is the same as~``F''.
+%
+%        2015 Feb~08 (v.~0.36): I~have conjectured that the choice of the
+%        letter~``O'' for this key could have been suggested by the initial of
+%        ``opening'', meaning, as it were, ``indent by the extent of the 
+%        opening''; but I~cannot remember of having thought of that.
 %    \end{description}
 %    The default setting is the same as the one implied by the
 %    \opz{indent} option.
@@ -2000,6 +2521,7 @@
 \@ifdefinable\@indent@pref{\let\@indent@pref F}
 %    \end{macrocode}
 %    \end{macro}
+%
 %    \begin{macro}{\voidisOK}
 %    Sometimes, in a letter, you want to omit the sender or the
 %    addressee address, or the signature, and it is annoying to see a
@@ -2092,7 +2614,7 @@
 %
 %    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
+%    the group being declared last.  This ensures 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.
@@ -2220,6 +2742,26 @@
 \DeclareOption{uprightsignature}{\let\@signature@style\upshape}
 %    \end{macrocode}
 %
+%    Vers.~0.36 (2015 Feb~08): new option \opz{signaturerule} requests that
+%    each typeset signature be surmounted by a ``signature rule'' intended to
+%    guide the signer's hand.  This, however, should not affect at all
+%    signatures contained in a \env{signatureenv*} environment, the variant of
+%    the \env{signatureenv} environment meant for situations in which the
+%    letter is not going to be signed by hand.
+%    \begin{macrocode}
+\DeclareOption{signaturerule}{\@signature@rule@true}
+%    \end{macrocode}
+%    The \opz{nosignaturerule} option (also new in vers.~0.36) is the opposite 
+%    of the above, and is the default.
+%    \begin{macrocode}
+\DeclareOption{nosignaturerule}{\@signature@rule@false}
+%    \end{macrocode}
+%    \emph{Remark:} the ability to draw a rule for handwritten signatures has
+%    been explicitly requested by some users of the \Bundle, but I~deem the use
+%    of such feature questionable, since only pupils in primary school need 
+%    rules to guide their writing.  Nontheless, this usage is admittedly fairly
+%    common in the business world, so it has been supported.
+%
 %    Next, we have the options used to tell whether PostScript
 %    commands, inserted by means of the \packlass{eepic} package, should be
 %    used, or not, to draw the CDP seal.  Here we simply set the internal
@@ -2342,15 +2884,21 @@
 %    follows: \opz{boldsubject} in place of \opz{mediumsubject},
 %    \opz{italicsignature} in place of \opz{uprightsignature},
 %    \opz{shortindent} in place of \opz{indent}?
+%
+%    Ver.~0.36 (2015 Feb~08): not yet determined to change the default options.
+%    Added \opz{nosignaturerule}.
 %    \begin{macrocode}
-\ExecuteOptions{a4paper,10pt,oneside,onecolumn,final,%
-mediumsubject,uprightsignature,noPS,indent,105x37labels}
+\ExecuteOptions{%
+  a4paper,10pt,oneside,onecolumn,final,%
+  mediumsubject,uprightsignature,nosignaturerule,noPS,indent,%
+  105x37labels%
+}
 \ProcessOptions\relax
 %    \end{macrocode}
 %
 %    \subsection{Package loading}
 %
-%    In this version of the C.D.P. Bundle, all the original code is
+%    In this version of the \Bundle, all the original code is
 %    put in the file \filedir{\letteracdp.cls}, so in the normal operating
 %    mode no packages need to be loaded.  This will change in future
 %    releases: the code will be split among several packages, to allow
@@ -2733,7 +3281,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    cannot tell what the single values of "\topmargin" and "\headheight"
 %    are.  In the last case, the inherent uncertainty does no harm,
 %    because the "\headheight" parameter is not used to position any
-%    graphical element of the letterhead: it suffices to assure that it
+%    graphical element of the letterhead: it suffices to ensure that it
 %    allows enough room for the other, ordinary running heads; in
 %    practice, that there is room for a line of text in the largest
 %    supported font size (\emph{i.e.}, 12~points).  Setting "\headheight"
@@ -2768,7 +3316,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \item[textwidth]
 %    This parameter is first of all initialized in the standard
-%    \filedir{.clo} files: this assures that the standard \LaTeX\ initial
+%    \filedir{.clo} files: this ensures that the standard \LaTeX\ initial
 %    value is used (cf.~step~\ref{plostep1} above).  Nevertheless, the
 %    value can be subsequently adjusted as explained in
 %    step~\ref{plostep2}, to achieve a better alignment with some points
@@ -2776,7 +3324,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \item[oddsidemargin]
 %    This is set to \( \frac{1}{2}("\paperwidth"-"\textwidth") -
-%    1\,\mbox{in} \), to assure that the main body of text is
+%    1\,\mbox{in} \), to ensure that the main body of text is
 %    horizontally centered on the page.  Note that \LaTeX\ measures
 %    "\oddsidemargin" from the \TeX\ origin, and not from the left edge
 %    of the paper.
@@ -2829,7 +3377,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \item[footskip]
 %    This is set to \( "\paperheight" - "\textheight" -
-%    6.5\,\mbox{cm} \): this assures that the baseline of the footer
+%    6.5\,\mbox{cm} \): this ensures that the baseline of the footer
 %    (along which the rule is traced) runs at \( 2.5\,\mbox{cm} \)
 %    from the bottom edge of the paper.
 %
@@ -3050,7 +3598,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     \fi
   \fi
 %    \end{macrocode}
-%    A final check is also made to assure that "\longindentation" falls
+%    A final check is also made to ensure that "\longindentation" falls
 %    within the closed range \( [\frac{4}{10}"\textwidth",
 %    \frac{6}{10}"\textwidth"] \).
 %    \begin{macrocode}
@@ -3323,22 +3871,69 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     }%
   }\hss
 }}
+%    \end{macrocode}
+%
+%    \begin{macro}{\@folding@tag}
+%    Invoked by the macros that implement the ``folded'' page styles,
+%    more precisely by those which draw the header, to draw the small sign
+%    that marks the point where the sheet should be folded.
+%    \begin{macrocode}
 \@ifdefinable\@folding@tag{\def\@folding@tag{%
   \if@do@fold@
     \raisebox{\@lh@folding@ht}[\z@][\z@]{%
       \makebox[\z@][l]{%
-        \dimen@ -\@lh@right@margin
-        \advance\dimen@ 1cm%
+%    \end{macrocode}
+%    Vers.~0.36: new and more robust way of computing the horizontal position.
+%    \begin{macrocode}
+        \dimen@ \paperwidth
+        \advance \dimen@ -1in%
+        \advance \dimen@ -\oddsidemargin
+        \advance \dimen@ -\textwidth
+        \advance\dimen@ -1cm%
+%    \end{macrocode}
+%    End of change.
+%    \begin{macrocode}
         \kern\dimen@ \vbox{%
-          \kern -.1\p@
-          \hrule \@height .1\p@ \@depth .1\p@ \@width 5mm%
-          \kern -.1\p@
+%    \end{macrocode}
+%    Vers.~0.36: change to support the new "\foldingtagrule" user-level command
+%    and the use of color.
+%    \begin{macrocode}
+          \color@begingroup
+          \foldingtagrule
+          \color@endgroup
+%    \end{macrocode}
+%    End of change.
+%    \begin{macrocode}
         }%
       }%
     }%
   \fi
 }}
 %    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\foldingtagrule}
+%    Vers.~0.31 (2015 Feb~08): new command, redefinable by the user, 
+%    to draw the tag.  It permits customization of the latter.
+%    It should take up no vertical space in total
+%    (\emph{i.e.}, it should backspace).
+%    \begin{macrocode}
+\newcommand*\foldingtagrule{%
+  \kern -.1\p@
+  \hrule \@height .1\p@ \@depth .1\p@ \@width 5mm%
+  \kern -.1\p@
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\CDPFactoryFoldingTagRule}
+%    Back up of the above.  Should \emph{not} be redefined!
+%    \begin{macrocode}
+\@ifdefinable\CDPFactoryFoldingTagRule{
+  \let \CDPFactoryFoldingTagRule = \foldingtagrule
+}
+%    \end{macrocode}
+%    \end{macro}
 %
 %    \subsubsection{Macros for drawing the CDP seal}
 %
@@ -3416,7 +4011,15 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 \newcommand \address  [1]{\def\thesenderaddress{#1}}
 \newcommand \location [1]{\def\thesenderlocation{#1}}
 \newcommand*\telephone[1]{\def\thesenderphone{#1}}
+%    \end{macrocode}
+%
+%    \begin{macro}{\makelabels}
+%    \changes{0.36}{2015 Feb 08}{Added new instruction
+%      \protect\texttt{\protect\bslash @making@labels@true}.}
+%    The "\makelabels" command now sets the "\if@making@labels@" switch.
+%    \begin{macrocode}
 \newcommand*\makelabels{%
+  \@making@labels@true
   \AtBeginDocument{%
      \def\@beginlabels{\begin{labels}}%
      \def\@beginlabelgroup{\begin{labelgroup}}%
@@ -3428,12 +4031,28 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   \AtEndDocument{%
      \if@filesw\immediate\write\@mainaux{\string\@endlabels}\fi}}
 \@onlypreamble\makelabels
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\cleardoubleemptypage}
+%    Similar to "\cleardoublepage", but inserts pages with \sty{empty} page
+%    style.
+%    \begin{macrocode}
 \newcommand*\cleardoubleemptypage{\par
   \onecolumn
   \if@twoside \ifodd\c@page \else
     \thispagestyle{empty}\null\newpage
   \fi\fi
 }
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@safe@space}
+%    This macro inserts \#1 in the current horizontal lists; if it contributes
+%    a (strictly) positive width, it also inserts~\#2.  Usually \#1 is a
+%    certain string, and \#2 is a spacing command that one wants to emit (if
+%    and) only if the string is nonempty.
+%    \begin{macrocode}
 \@ifdefinable\@safe@space{\def\@safe@space#1#2{%
   \setbox\z@\hbox{\ignorespaces #1\unskip}%
   \ifdim\wd\z@>\z@
@@ -3443,6 +4062,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   \fi
 }}
 %    \end{macrocode}
+%    \end{macro}
 %
 %    \begin{environment}{baseletter}
 %    \changes{0.31}{2001 Dec 01}{Reintroduced the first mandatory argument
@@ -3509,8 +4129,10 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    allows to discard the glue after the signature if this is needed to
 %    fit the letter in the page, even if "\stopbreaks" is in effect after
 %    the signature.  Should this be a ``"-\@M"''-cost page break instead?
-%    (Probably yes, but not sure of all implications, so leave it this
-%    way.)
+%
+%    (2015 Feb~08, vers.~0.36: definitely \emph{no}, since that would stretch 
+%    out the last page of the letter!  It was fortunate we didn't dare change
+%    it in previous releases!)
 %    \begin{macrocode}
   \@@par\addpenalty\z@
   \clearpage
@@ -3524,12 +4146,19 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \end{macrocode}
 %    Write to the \filedir{.aux} file the data for the address labels.
 %    This is rather tricky because we can have multiple addressees
-%    \emph{and} multiple senders.
-%    \begin{macrocode}
-  \if@filesw
+%    \emph{and} multiple senders
+%    \changes{0.36}{2015 Feb 08}{Added check for the
+%      \protect\texttt{\protect\bslash if@making@labels@} switch before
+%      writing to the \protect\filedir{.aux} file unneeded information for 
+%      generating the address labels.}
+%    (v.~0.36: note the new check for "\if@making@labels@", in order to write
+%    to the \filedir{.aux} file the information about the address labels
+%    only when it is actually needed).
+%    \begin{macrocode}
+  \if@filesw \if@making@labels@
     \begingroup
 %    \end{macrocode}
-%    Assure that "\\", "~" and "\protect"'ed tokens are written literally
+%    Ensure that "\\", "~" and "\protect"'ed tokens are written literally
 %    instead of being expanded:
 %    \begin{macrocode}
       \let\\\relax
@@ -3538,7 +4167,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \end{macrocode}
 %    ^^A { bracket match
 %    The following hack causes "\and" (and "\andcc") to expand into
-%    "}\@gobble{"
+%    ``"}\@gobble{"''.
 %    ^^A } bracket match
 %    \begin{macrocode}
       \def\and{%
@@ -3551,11 +4180,40 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    "\@cdp@reserved", and the others are "\@gobble"'d.
 %    \begin{macrocode}
       \edef\@cdp@reserved{{\returnaddress}}%
+%    \end{macrocode}
+%    We now cope with "\and"'s and "\andcc"'s inside "\theaddresseeaddress":
+%    we write them to the \filedir{.aux} file as
+%    ^^A { bracket match
+%    ``"}"\,\meta{LF}\,"\@mlabel{"^^A
+%    \( \langle\mbox{\itshape expansion of\/ } "\@cdp@reserved"\,\rangle \)^^A
+%    "}{"'',
+%    ^^A } bracket match
+%    \emph{i.e.}, for what we have just said, as
+%    ^^A { bracket match
+%    ``"}"\,\meta{LF}\,"\@mlabel{"\meta{address of 1st~sender}"}{"''.
+%    ^^A } bracket match
+%    \begin{macrocode}
       \def\and{%
         \iffalse{\fi}^^J%
         \string\@mlabel{\@cdp@reserved}{\iffalse}\fi
       }%
       \let\andcc\and
+%    \end{macrocode}
+%    We are now ready to write out the corrent sequence of commands,
+%    \emph{e.g.}:
+%    \begingroup
+%      \fontsize{9}{11}\selectfont
+%      \zerolistvertspaces
+%      \begin{flushleft}
+%        "\@beginlabelgroup"\\
+%        "\@mlabel{"\meta{1st sender}"}{"\meta{1st addressee}"}"\\
+%        "\@mlabel{"\meta{1st sender}"}{"\meta{2nd addressee}"}"\\
+%        "\@mlabel{"\meta{1st sender}"}{"\meta{3rd addressee}"}"\\
+%        \ldots\\
+%        "\@endlabelgroup"\\
+%      \end{flushleft}
+%    \endgroup
+%    \begin{macrocode}
       \immediate\write\@auxout{%
         \string\@beginlabelgroup ^^J%
         \string\@mlabel
@@ -3563,7 +4221,11 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
         \string\@endlabelgroup
       }%
     \endgroup
-  \fi
+%    \end{macrocode}
+%    Vers.~0.36: note the additional "\fi" to go with the new
+%    "\if@making@labels@".
+%    \begin{macrocode}
+  \fi \fi
 }
 %    \end{macrocode}
 %    \end{environment}
@@ -3705,20 +4367,70 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \subsubsection{Addresses and subject}
 %
+%    The addresses and the subject are not composed inside inner boxes:
+%    instead, they are constructed from ``blocks'' of lines, conveniently 
+%    indented, that are contributed directly to the main vertical list.
+%    The correct indentation is achieved by a clever combination of "\parshape"
+%    and "\everypar".
+%    This unusual scheme was chosen with the intent of maintaining full control
+%    over the interline glue, but other, and simpler, means to accomplish this
+%    are actually available (\emph{if} the interline glue is \emph{rigid}).
+%
+%    \begin{macro}{\@block@parshape}
+%    This macro, invoked at every par., is responsible for setting the
+%    indentation.
 %    \begin{macrocode}
 \@ifdefinable\@block@parshape{\def\@block@parshape{%
   \parshape \@ne\@block@inden\@block@width
 }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@block@parshape}
+%    The part of "\@block@everypar" that "\y@custom@block" uses directly.
+%    \begin{macrocode}
 \@ifdefinable\@block@@everypar{\def\@block@@everypar{%
   \parskip\z@skip
   \@nobreakfalse \@minipagefalse % these are already \global
   \@new@block@false \@empty@and@false % these too
   \everypar{\@block@parshape}%
 }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@block@everypar}
+%    Code executed when a block or an ``"\and"-section'' begins.
+%    \changes{0.36}{2015 Feb 08}{Added a hook, \protect\texttt{\protect\bslash
+%      @begin@block@or@and@hook}.}^^A
+%    2015 Feb~08 (v.~0.36): "\@begin@block@or@and@hook" added.
+%    \begin{macrocode}
 \@ifdefinable\@block@everypar{\def\@block@everypar{%
   \@block@parshape
   \@block@@everypar
+  \@begin@block@or@and@hook
 }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\x@custom@block}
+%    General utility macro for generating blocks that, like address blocks,
+%    haven't got a label, but for which, in exchange, the indentation and the
+%    width can be set independently of one another.  Parameters:\strut\\*
+%    \strut
+%    \begin{tabular}{r@{}l}
+%      \param{1} & switch: \( \mbox{Y} = \mbox{add} \) space above and below,
+%          \( \mbox{N} = \mbox{don't} \) add it;\\
+%      \param{2} & block indentation from left margin (\textoken{dimen});\\
+%      \param{3} & block width (\textoken{dimen});\\
+%      \param{4} & vertical space above block (\textoken{glue});\\
+%      \param{5} & vertical space between ``"\and"-sections''
+%          (\textoken{glue});\\
+%      \param{6} & vertical space below block (\textoken{glue});\\
+%      \param{7} & penalty for breaking before block;\\
+%      \param{8} & penalty for breaking between ``"\and"-sections'';\\
+%      \param{9} & penalty for breaking after block.\\
+%    \end{tabular}\strut
+%    \begin{macrocode}
 \@ifdefinable\x@custom@block{\def\x@custom@block#1#2#3#4#5#6#7#8#9{%
   \@custom@block#1#4#5#6#8#9%
   \@block@inden #2%
@@ -3727,13 +4439,38 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   \everypar{\@block@everypar}%
   \@@custom@block #7%
 }}
-\@ifdefinable\y@custom@block{\def\y@custom@block#1#2#3#4#5#6#7#8{%
-  \@custom@block#1#3#4#5#7#8%
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\y@custom@block}
+%    General utility macro for generating blocks that, just like the block of
+%    the subject, do have a label, but for which, in exchange, both the
+%    indentation and the width are deduced from the width of the label itself.
+%    \changes{0.36}{2015 Feb 08}{Added parameter for space after label.}^^A
+%    2015 Feb~08 (v.~0.36): added new parameter for the amount of
+%    horizontal space after the label.  Parameters now are:\strut\\*
+%    \strut
+%    \begin{tabular}{r@{}l}
+%      \param{1} & switch: \( \mbox{Y} = \mbox{add} \) space above and below,
+%          \( \mbox{N} = \mbox{don't} \) add it;\\
+%      \param{2} & label;\\
+%      \param{3} & horizontal space after label (\textoken{dimen});\\
+%      \param{4} & vertical space above block (\textoken{glue});\\
+%      \param{5} & vertical space between ``"\and"-sections''
+%          (\textoken{glue});\\
+%      \param{6} & vertical space below block (\textoken{glue});\\
+%      \param{7} & penalty for breaking before block;\\
+%      \param{8} & penalty for breaking between ``"\and"-sections'';\\
+%      \param{9} & penalty for breaking after block.\\
+%    \end{tabular}\strut
+%    \begin{macrocode}
+\@ifdefinable\y@custom@block{\def\y@custom@block#1#2#3#4#5#6#7#8#9{%
+  \@custom@block#1#4#5#6#8#9%
   \sbox\@labels{\normalfont\ignorespaces #2\unskip}%
     % We use \@labels to save a box register.
   \@block@inden\wd\@labels
   \ifdim\@block@inden>\z@
-    \advance \@block@inden by \subjectnamegap \relax
+    \advance \@block@inden #3\relax
     \wd\@labels\@block@inden
   \fi
   \@block@width\textwidth \advance\@block@width -\@block@inden
@@ -3742,8 +4479,13 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     \box\@labels
     \@block@@everypar
   }%
-  \@@custom@block #6%
+  \@@custom@block #7%
 }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    Uncommented code.
+%    \begin{macrocode}
 \@ifdefinable\@custom@block{\def\@custom@block#1#2#3#4#5#6{%
   \if@inlabel \indent \fi
   \let\par\@@par \par
@@ -3881,10 +4623,21 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     try to type \space <return> \space to proceed.%
   }%
 }}
+%    \end{macrocode}
+%
+%    \begin{macro}{\@subject}
+%    Inner implementation of \env{subject}\slash\env{subject*} environments.
+%    \changes{0.36}{2015 Feb 08}{Now this macro passes
+%      \protect\texttt{\protect\bslash subjectnamegap} as parameter~\#3 to
+%      \protect\texttt{\protect\bslash y@custom@block}.}^^A
+%    2015 Feb~08 (v.~0.36): now passes the "\subjectnamegap" macro
+%    as parameter~\#3 to "\y@custom@block", parameter added in this same
+%    version.
+%    \begin{macrocode}
 \@ifdefinable\@subject{\def\@subject#1#2{%
   \let\@empty@block\@empty
   \y@custom@block #1%
-    {#2}%
+    {#2}\subjectnamegap
     \abovesubjectvspace\z@skip\belowsubjectvspace
     \@b@subjpenalty\@M\@e@subjpenalty
   \let\presubject\@good@prsbj
@@ -3895,6 +4648,11 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   }%
   \@subject@style
 }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    Uncommented code.
+%    \begin{macrocode}
 \newenvironment*{subject} [1][\subjectname]
   {\@subject Y{#1}}{\end@custom@block Y}
 \newenvironment*{subject*}[1][\subjectname]
@@ -3929,6 +4687,11 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \subsubsection{Presentations}
 %
+%    With this funny term we denote the initial part of a letter
+%    (addresses and the like).
+%
+%    \begin{macro}{\@setup@pres}
+%    Code for setting up style parameters.
 %    \begin{macrocode}
 \@ifdefinable\@setup@pres{\def\@setup@pres{%
   \global\@topnum\z@ % prevents figures from going at top of page
@@ -3953,6 +4716,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   \endnormalpresentation
 }
 %    \end{macrocode}
+%    \end{macro}
 %
 %    \begin{environment}{normalpresentation}
 %    The environment for making a normal presentation:
@@ -4001,9 +4765,9 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{macrocode}
   \if@do@fold@
 %    \end{macrocode}
-%    \emph{Yes.} First, assure that we are at the beginning of a page;
+%    \emph{Yes.} First, ensure that we are at the beginning of a page;
 %    note that \emph{numbered} pages, here, are inserted if there is a gap
-%    to fill in.
+%    to be filled.
 %    \begin{macrocode}
     \cleardoublepage
 %    \end{macrocode}
@@ -4120,14 +4884,13 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    this box already includes "\topskip" glue at the 
 %    top, no further interline glue must be inserted above it.
 %    \begin{macrocode}
-    \nointerlineskip
-    \box\tw@
+    {\topskip\z@skip \box\tw@
 %    \end{macrocode}
 %    Thanks to the above setting of "\splitmaxdepth", we are sure that
 %    the depth of the previous box is small; so the following line will
 %    take us exactly on the edge of the fold, with null depth\ldots
 %    \begin{macrocode}
-    {\baselineskip\@above@folding@margin \nobreak\null}%
+    \baselineskip\@above@folding@margin \nobreak\null}%
 %    \end{macrocode}
 %    \ldots where we insert a costly, yet feasible breakpoint.
 %    \begin{macrocode}
@@ -4277,6 +5040,10 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \subsubsection{Date, salutation, signature, enclosures\ldots}
 %
+%    This section should be reorganized, with commands listed in a more 
+%    logical order: at present, they are rather mixed up.
+%
+%    First comes the date.
 %    \begin{macrocode}
 \@ifdefinable\@make@date{\def\@make@date#1#2#3{\par
   \ifx#2Y%
@@ -4295,29 +5062,82 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     Empty signature%
   }%
 }}
+%    \end{macrocode}
+%
+%    Then, heaven knows why, the signature.
+%
+%    \begin{macro}{\@signatureenv}
+%    Inner implementation of the \env{signatureenv}\slash\env{signatureenv*}
+%    environments.
+%    \changes{0.36}{2015 Feb 08}{Added support for \protect\opz{signaturerule}
+%      option.}^^A
+%    Added support for the \opz{signaturerule} option (vers.~0.36), exploiting
+%    the new ``hook'' "\@begin@block@or@and@hook", the gets executed whenever a
+%    signature is typeset.
+%    \begin{macrocode}
 \@ifdefinable\@signatureenv{\def\@signatureenv#1{\par
   \let\@empty@block\@empty@signature
   \let\and\@block@nd
+  \if@signature@rule@
+    \let \@begin@block@or@and@hook \@make@signature@rule
+  \fi
   \x@custom@block Y%
     \signatureindentation\signaturewidth
     #1#1\z@skip
     \@M\@M\@M
   \signaturealignment\@signature@style
 }}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\end@signatureenv}
+%    Ends a \env{signatureenv}\slash\env{signatureenv*} environment.
+%    \begin{macrocode}
 \def\end@signatureenv{%
   \end@custom@block N% not "Y" for efficiency
+%    \end{macrocode}
+%    The following line (also added, of course, in vers.~0.36) is not actually necessary ("\@begin@block@or@and@hook"
+%    has been set by "\@signatureenv" inside a group), but redundancy does not
+%    hurt.
+%    \begin{macrocode}
+  \let \@begin@block@or@and@hook \@empty
   \addvspace\belowsignaturevspace
 }
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{environment}{signatureenv}
+%    For signatures that include vertical space for handwriting.
+%    \begin{macrocode}
 \newenvironment*{signatureenv}{%
   \@signatureenv\abovesignaturevspace
 }{%
   \end@signatureenv
 }
+%    \end{macrocode}
+%    \end{environment}
+%
+%    \begin{environment}{signatureenv*}
+%    For signatures that do \emph{not} include vertical space for handwriting; 
+%    these should \emph{never} display a rule, and for this reason\ldots
+%    \begin{macrocode}
 \newenvironment*{signatureenv*}{%
+%    \end{macrocode}
+%    \changes{0.36}{2015 Feb 08}{Taken care of always suppressing rules
+%      here.}^^A
+%    \ldots~we add the following line in vers.~0.36 (note that we are inside a
+%    group).
+%    \begin{macrocode}
+  \@signature@rule@false
   \@signatureenv\abovesignatureshortvspace
 }{%
   \end@signatureenv
 }
+%    \end{macrocode}
+%    \end{environment}
+%
+%    Uncommented code.
+%    \begin{macrocode}
 \@ifdefinable\x@msignature{\def\x@msignature#1{%
   \begin{signatureenv#1}%
     \ifx\thesendersignature\@empty
@@ -4344,9 +5164,52 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     }%
   }%
 }
+%    \end{macrocode}
+%
+%    \begin{macro}{\@make@signature@rule}
+%    Generate a fake, raised line, containing the rule.  Added in vers.~0.36.
+%    \begin{macrocode}
+\@ifdefinable\@make@signature@rule{\def\@make@signature@rule{%
+  \raisebox{\baselineskip}[0pt][0pt]{%
+    \signaturerule
+  }\\*[-\baselineskip]%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\signaturerule}
+%    User command to allow customization of the signature rule.
+%    Added in vers.~0.36.
+%    \begin{macrocode}
+\newcommand*\signaturerule{%
+  \makebox[\signaturerulewidth]{%
+    \leaders \hrule \@height .1\p@ \@depth .1\p@ \hfill
+  }%
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    Now is the turn of the salutation (I~said the order isn't logical!).
+%
+%    \begin{macro}{\makeopening}
+%    This command generates the sheer salutation.  It comes in two flavors:
+%    \begin{description}
+%      \item[normal form:]
+%        "\makeopening{"\meta{text}"}"\\*
+%          typeset the \meta{text} as the salutation;
+%      \item[$+$-form:]
+%        "\makeopening+"\\*
+%          leave space for a handwritten salutation.
+%    \end{description}
+%    \begin{macrocode}
 \newcommand*\makeopening{\par
   \@ifnextchar +{\@firstoftwo\y@mopening}\x@mopening
 }
+%    \end{macrocode}
+%    \end{macro}
+%
+%    Uncommented code.
+%    \begin{macrocode}
 \@ifdefinable\x@mopening{\def\x@mopening#1{%
   \ifx\@indent@pref O%
     \dimen@\prevdepth
@@ -4378,20 +5241,89 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 \@ifdefinable\y@mopening{\def\y@mopening{%
   \@handwr@box\z@ \nobreak
 }}
+%    \end{macrocode}
+%
+%    \begin{macro}{\opening}
+%    Well-known command for opening a letter.  In vers.~0.35, it,
+%    and related macros, have been completely reimplemented to support the
+%    "\OpeningSequence" feature.
+%    \begin{macrocode}
 \newcommand*\opening{\par
-  \@ifnextchar +{%
-    \let\@cdp@reserved\y@mopening
-    \@firstoftwo\@opening
-  }{%
-    \let\@cdp@reserved\x@mopening
-    \@opening
-  }%
+  \@ifnextchar +{\@firstoftwo\y@opening}\x@opening
 }
-\newcommand*\@opening[1][\@place]{%
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\y@opening}
+%    Implements the ``\mbox{$+$-form}'' of the "\opening" command (salutation
+%    written by hand): "\ChosenMakeOpening" should expand to ``"\y@mopening"''.
+%    \begin{macrocode}
+\newcommand*\y@opening[1][\@place]{%
+  \@opening \y@mopening {#1}%
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\x@opening}
+%    Implements the normal form of the "\opening" command (with typeset
+%    salutation): "\ChosenMakeOpening" should expand to
+%    ``"\x@mopening{"\meta{contents of~\#2}"}"''.
+%    \begin{macrocode}
+\newcommand*\x@opening[2][\@place]{%
+  \@opening{\x@mopening{#2}}{#1}%
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@opening}
+%    Prepare call to "\OpeningSequence", then call it.  Parameters:\strut\\*
+%    \strut
+%    \begin{tabular}{r@{}l}
+%      \param{1} & intended meaning of "\ChosenMakeOpening";\\
+%      \param{2} & contents of optional argument of "\opening"
+%          (defaults to "\@place").\\
+%    \end{tabular}\strut
+%    \begin{macrocode}
+\@ifdefinable\@opening{\def\@opening#1#2{%
+%    \end{macrocode}
+%    Keep definition of "\ChosenMakeOpening" local.
+%    \begin{macrocode}
+  \begingroup
+    \def\ChosenMakeOpening{#1}%
+%    \end{macrocode}
+%    Invoke user-customizable opening sequence.
+%    \begin{macrocode}
+    \OpeningSequence{#2}%
+%    \end{macrocode}
+%    If the \opz{smartindent} option is in force, "\parindent" might have just
+%    been changed: this change must be ``lifted'' out of the group.
+%    \begin{macrocode}
+    \global\dimen@i\parindent
+  \endgroup
+  \parindent\dimen@i
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\OpeningSequence}
+%    This command defines the ``opening sequence'', that is, the sequence of
+%    commands that should be executed when the user-level "\opening" command
+%    is given.  Provided in vers.~0.35 to allow customization.  The optional
+%    argument of "\opening" is passed in the---mandatory!---argument of this
+%    command; the mandatory argument of "\opening", if present (\emph{i.e.},
+%    if not ``\mbox{$+$-form}'') is embodied in "\ChosenMakeOpening".
+%    Factory definition:
+%    \begin{macrocode}
+\newcommand*\OpeningSequence[1]{%
   \makepresentation
   \maketopdate[#1]%
-  \@cdp@reserved
+  \ChosenMakeOpening
 }
+%    \end{macrocode}
+%    \end{macro}
+%
+%    A little bit of uncommented code.
+%    \begin{macrocode}
 \newcommand*\makeclosing{\@par@stopbreaks
   \@ifnextchar +{\@firstoftwo\y@mclosing}\x@mclosing
 }
@@ -4401,22 +5333,112 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 \@ifdefinable\y@mclosing{\def\y@mclosing{%
   \@handwr@box\closingindentation
 }}
+%    \end{macrocode}
+%
+%    \begin{macro}{\closing}
+%    Well-known command for closing a letter.  In vers.~0.35, it,
+%    and related macros, have been completely reimplemented to support the
+%    "\ClosingSequence" feature.  The present implementation support exactly
+%    the same modifiers as the former one (cf.~\cite{nts}), \emph{i.e.}:
+%    \begin{description}
+%      \item[normal form:]
+%        "\closing{"\meta{text}"}"\\*
+%          typeset the \meta{text} as the closing sentence,
+%          using the internal equivalent of "\makeclosing{"\meta{text}"}";
+%          an ordinary signature (the internal equivalent of "\makesignature")
+%          follows;
+%      \item[$*$-form:]
+%        "\closing*{"\meta{text}"}"\\*
+%          typeset the \meta{text} as the closing sentence,
+%          using the internal equivalent of "\makeclosing{"\meta{text}"}";
+%          a compressed signature (the internal equivalent of
+%          "\makesignature*") follows;
+%      \item[$+$-form:]
+%        "\closing+"\\*
+%          leave space for a handwritten closing sentence (as "\makeclosing+"
+%          would do),
+%          followed by another space for an equally handwritten signature
+%          (like the one produced by "\makesignature-");
+%      \item[$-$-form:]
+%        "\closing-{"\meta{text}"}"\\*
+%          typeset the \meta{text} as the closing sentence,
+%          using the internal equivalent of "\makeclosing{"\meta{text}"}",
+%          followed by the space for a handwritten signature
+%          (like the one produced by "\makesignature-").
+%    \end{description}
+%    \begin{macrocode}
 \newcommand*\closing{\@par@stopbreaks
   \@ifstar{%
     \@closing{\x@msignature *}%
   }{%
-    \@ifnextchar +{%
-      \@firstoftwo{\y@mclosing \y@msignature}%
-    }{%
-      \@ifnextchar -{%
-        \@firstoftwo{\@closing \y@msignature}%
-      }{%
+    \@ifnextchar +{\@firstoftwo{%
+      \@@closing \y@mclosing \y@msignature
+    }}{%
+      \@ifnextchar -{\@firstoftwo{%
+        \@closing \y@msignature
+      }}{%
         \@closing{\x@msignature {}}%
       }%
     }%
   }%
 }
-\@ifdefinable\@closing{\def\@closing#1#2{\x@mclosing{#2}#1}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@closing}
+%    The sole purpose of this macro is to absorb the argument destined for the
+%    "\closing" command (which is absent in the ``\mbox{$+$-form}, though),
+%    which becomes argument~\#2; argument~\#1 is the token sequence that should
+%    be used to generate the signature.
+%    \begin{macrocode}
+\@ifdefinable\@closing{\def\@closing#1#2{%
+  \@@closing{\x@mclosing{#2}}{#1}%
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@@closing}
+%    Prepare call to "\ClosingSequence", then call it.  Parameters:\strut\\*
+%    \strut
+%    \begin{tabular}{r@{}l}
+%      \param{1} & intended meaning of "\ChosenMakeClosing";\\
+%      \param{2} & intended meaning of "\ChosenMakeSignature".\\
+%    \end{tabular}\strut
+%    \begin{macrocode}
+\@ifdefinable\@@closing{\def\@@closing#1#2{%
+%    \end{macrocode}
+%    Keep definitions local.
+%    \begin{macrocode}
+  \begingroup
+    \def\ChosenMakeClosing{#1}%
+    \def\ChosenMakeSignature{#2}%
+%    \end{macrocode}
+%    Invoke user-customizable closing sequence.
+%    \begin{macrocode}
+    \ClosingSequence
+  \endgroup
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\ClosingSequence}
+%    This command defines the ``closing sequence'', that is, the sequence of
+%    commands that should be executed when the user-level "\closing" command
+%    is given.  Provided in vers.~0.35 to allow customization.
+%    Factory definition:
+%    \begin{macrocode}
+\newcommand*\ClosingSequence{%
+  \ChosenMakeClosing
+  \ChosenMakeSignature
+}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@handwr@box}
+%    Draws an almost imperceptible sign that marks the spot where a handwritten
+%    salutation, or closing sentence, should start.  \#1~is the amount of
+%    indentation.
+%    \begin{macrocode}
 \@ifdefinable\@handwr@box{\def\@handwr@box#1{%
   \vskip .5\baselineskip
   \setbox\z@\vbox{%
@@ -4425,12 +5447,32 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   \wd\z@\z@ \ht\z@\z@ \dp\z@\z@ \noindent\hspace*{#1}\box\z@\par
   \vskip .5\baselineskip\vskip\z@skip
 }}
-\newcommand\@cc@encl[2]{\par
-  \noindent\parbox[t]{\textwidth}{%
-    \@hangfrom{\normalfont\@safe@space{#1}\enspace}%
-    \ignorespaces #2\strut
-  }\par
-}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    \begin{macro}{\@cc@encl}
+%    Inner implementation for both "\cc" and "\encl".
+%    \changes{0.36}{2015 Feb 08}{Fully reimplemented by means of
+%      ``blocks''.}^^A
+%    Wholly rewritten in vers.~0.36, now uses ``blocks'' (like addresses and
+%    subject).  This, among other things, ensures coherent treatment of the
+%    interline glue.
+%    \begin{macrocode}
+\@ifdefinable\@cc@encl{\long\def\@cc@encl#1#2{\par
+  \begingroup
+    \let\@empty@block\@empty
+    \y@custom@block N{#1}{.5em}%
+      \z@skip\z@skip\z@skip
+      \@M\z@\z@
+    \ignorespaces #2%
+    \end@custom@block N%
+  \endgroup
+}}
+%    \end{macrocode}
+%    \end{macro}
+%
+%    Uncommented code.
+%    \begin{macrocode}
 \newcommand*\cc  [1][\ccname]  {\@cc@encl{#1}}
 \newcommand*\encl[1][\enclname]{\@cc@encl{#1}}
 \newenvironment{enclosures}[1][\enclname]{%
@@ -4462,7 +5504,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   {\normalfont\@safe@space{#1}\enspace}\ignorespaces
 }
 \newcommand*\@PS@rubber[1][\PSname]{%
-  \@safe@space{#1}\space\ignorespaces
+  \@safe@space{#1}{\nobreak\space}\ignorespaces
 }
 \newcommand*\PS{%
   \ps\@ifstar{\@PS@rubber}{\@PS@rigid}%
@@ -4479,7 +5521,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \subsubsection{Address labels}
 %
 %    This part of the code should probably be detached and put in a 
-%    separte file to be loaded on demand.
+%    separate file to be loaded on demand.
 %
 %    The general idea is the following:
 %    \begin{itemize}
@@ -4564,8 +5606,8 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{environment}{baselabels}
 %    This is the actual environment for producing sheets of address
 %    labels: the \env{labels} environment (see below) is simply a wrapper
-%    that offers to the user the opportunity of changing some settings
-%    before invoking \env{baselabels}.
+%    that offers the user the opportunity of changing some settings before
+%    invoking \env{baselabels}.
 %    \begin{macrocode}
 \newenvironment*{baselabels}{%
   \cleardoubleemptypage
@@ -4627,7 +5669,8 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \end{environment}
 %
 %    \begin{environment}{labels}
-%    It is the user-level environment for producing one or more sheets of address labels. 
+%    It is the user-level environment for producing one or more sheets of 
+%    address labels. 
 %    Its default definition simply invokes \env{baselables}, but the 
 %    user may redefine it to set some style parameters.  For example:
 %\begin{verbatim}
@@ -4847,6 +5890,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{macrocode}
 %</letter>
 %    \end{macrocode}
+%    \noindent\null\par
 %
 % \section{The code for the \packlass{\articoletteracdp} class}
 %
@@ -4860,9 +5904,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{macrocode}
 \NeedsTeXFormat{LaTeX2e}[1996/06/01] % LaTeX2e is required!
 \ProvidesClass{articoletteracdp}
-              [2006/01/01 v0.34 (development)]
-%% \typeout{Copyright (C) 1999-2006 by Gustavo MEZZETTI,
-%%   all rights reserved.}
+              [2015/02/08 v0.36 (development)]
 %    \end{macrocode}
 %
 %    \subsection{Initial code}
@@ -4884,12 +5926,12 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \end{macrocode}
 %
 %    \begin{macro}{\@letter@bookmark}
-%    Support for pdf\TeX\slash\packlass{\hyperref}.  If pdf\TeX\ is
-%    being used to typeset the document, if the \packlass{\hyperref}
-%    package is loaded, and if the user does not ask us to avoid it, we
-%    shall generate a ``level~0'' bookmark for each letter we shall
+%    Support for pdf\TeX\slash\packlass{\HyperRef}.  If pdf\TeX\ is
+%    being used to typeset the document, if the \packlass{\HyperRef}
+%    package is loaded, and if the user doesn't ask us to avoid doing so,
+%    we shall generate a ``level~0'' bookmark for each letter we shall
 %    typeset (sections are of level~1, so they will be bookmarked under
-%    letters).  This command serves to this purpose: it is defined either
+%    letters).  This command serves this purpose: it is defined either
 %    as "\@gobbletwo", if such bookmarks are \emph{not} being generated,
 %    or as a suitable invocation of "\pdfbookmark" if they are.  To begin
 %    with, we set the former alternative, which makes it act as a no-op.
@@ -4930,9 +5972,9 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    The option \opz{letterbookmarks} causes the bookmarks for letters to
 %    be generated.  Upon expansion, the 2~arguments of
 %    "\@letter@bookmark" will become arguments of "\pdfbookmark".  We
-%    also need to ask the \packlass{\hyperref} package to generate closed
+%    also need to ask the \packlass{\HyperRef} package to generate closed
 %    bookmarks.  Note that the user can later overwrite this setting;
-%    note also that nothing will happen if \packlass{\hyperref} is not
+%    note also that nothing will happen if \packlass{\HyperRef} is not
 %    loaded later.
 %    \begin{macrocode}
 \DeclareOption{letterbookmarks}{%
@@ -4949,7 +5991,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \end{macrocode}
 %    The option \opz{openletterbookmarks} causes the bookmarks for
 %    letters to be generated and to be presented open to the reader.  We
-%    ask the \packlass{\hyperref} package to generate open bookmarks, but
+%    ask the \packlass{\HyperRef} package to generate open bookmarks, but
 %    only one level deep.  Note that the user can later overwrite this
 %    setting.  This is made the default option, below.
 %    \begin{macrocode}
@@ -4970,12 +6012,12 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \subsection{Class loading}
 %
 %    \begin{macrocode}
-\LoadClass{letteracdp}[2006/01/01]
+\LoadClass{letteracdp}[2015/02/08]
 %    \end{macrocode}
 %
 %    \subsection{Main code}
 %
-%    Unfortunately, the code is not commented (yet).
+%    Unfortunately, most of the code is not commented (yet).
 %
 %    \subsubsection{More initializations}
 %
@@ -4986,12 +6028,12 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 \newcounter{table}[letter]
 %    \end{macrocode}
 %
-%    Stuff for dealing with the \packlass{\hyperref} package.  The
+%    Stuff for dealing with the \packlass{\HyperRef} package.  The
 %    problem is our non-standard hierarchy of sectioning commands, with
 %    paragraphs placed directly below sections.  In this version (0.34) we
 %    choose a different approach than the one we adopted in version 0.33,
 %    redefining "\theHparagraph"; of course, this must be done
-%    \emph{after} \packlass{\hyperref} has been loaded, and we could not
+%    \emph{after} \packlass{\HyperRef} has been loaded, and we could not
 %    find any better place for this than the "\AtBeginDocument" hook.
 %    Within the same hook, we also redefine "\theHsection" (the counter
 %    used by \packlass{\@hyperref} to generate hyperlinks to sections) so
@@ -5007,7 +6049,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     \def\toclevel@paragraph{2}%
   }{%
 %    \end{macrocode}
-%    If the \packlass{\@hyperref} package is not loaded, we assure that
+%    If the \packlass{\@hyperref} package is not loaded, we ensure that
 %    "\@letter@bookmarks" acts as a no-op:
 %    \begin{macrocode}
     \let\@letter@bookmark\@gobbletwo
@@ -5017,7 +6059,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \begin{macro}{\hyper@last}
 %    The following line is to deactivate the check that
-%    \packlass{\hyperref} makes against old files; this is necessary
+%    \packlass{\HyperRef} makes against old files; this is necessary
 %    because otherwise, on the first \LaTeX\ run, it would overwrite our
 %    redefinition of "\@starttoc", possibly writing unwanted
 %    \filedir{.toc}, \filedir{.lof}, and \filedir{.lot} files, and (much
@@ -5025,8 +6067,8 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    "\tableofcontents", "\listoffigures", or "\listoftables".  Of
 %    course, this means that the user must be informed that (s)he has to
 %    delete the old files by hand.~\mbox{:-(}^^A ) paren match
-%    \spacefactor\sfcode`.  \space Note, anyway, that the automatic check
-%    made by \packlass{\hyperref} would not work with the C.D.P.  Bundle
+%    \closeofsentencespace Note, anyway, that the automatic check
+%    made by \packlass{\HyperRef} would not work with the \Bundle\ 
 %    in any case (because it looks for \filedir{.toc}, \filedir{.lof},
 %    etc.\ files, not for, say, \filedir{.toc1}, etc.), so\ldots
 %    \begin{macrocode}
@@ -5364,292 +6406,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{macrocode}
 %</artico>
 %    \end{macrocode}
-%
-% \section{The code for the \packlass{\adiseal} package}
-%
-%    This part of the file goes into \filedir{\adiseal.sty}.
-%    \emph{Very obsolete:} eliminate?
-%    \begin{macrocode}
-%<*adipk>
-%    \end{macrocode}
-%
-%    \subsection{Identification}
-%
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}[1998/06/01] % LaTeX2e is required!
-\ProvidesPackage{adiseal}
-              [2006/01/01 v0.34 (development)]
-\@ifdefinable\@adiseal{\def\@adiseal{adiseal}}
-%    \end{macrocode}
-%
-%    \subsection{Initial code}
-%
-%    This segment contains also code that could have been deferred to
-%    the Main Code segment, but which is handy to have here, right at
-%    the beginning.
-%
-%    \begin{macro}{\ADIWWW}
-%    The web address of ADI-PD is stored in a macro accessible to the
-%    user.
-%    \begin{macrocode}
-\newcommand*\ADIWWW{%
-  http://www.math.unipd.it/\string~favero/adipd/%
-}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@seal@graph@file}
-%    \changes{0.34}{2006 Jan 01}{Got rid of the \filedir{.eps} extension
-%      in the name of the file of the ADI seal: thus, the extension
-%      \filedir{.eps} or \filedir{.pdf} will be automatically supplied
-%      by the \packlass{epsgif} package according to the actual
-%      typesetting engine employed (\TeX\ or pdf\TeX)}
-%    The name of the file which contains the image of the ADI seal is
-%    also kept in a macro, to allow customization, but this macro is not
-%    made accessible to the user.  \emph{Note:} the image must be contained
-%    in a file in Encapsulated PostScript format or, for pdf\TeX, in
-%    Portable Document Format, and it should be exactly \( 60\,\mbox{bp} \)
-%    wide by \( 42\,\mbox{bp} \) tall.  The appropriate file extension
-%    will be supplied by the \packlass{epsfig} package.
-%    \begin{macrocode}
-\@ifdefinable\@seal@graph@file{\def\@seal@graph@file{%
-  adiseal% must be an EPS or a PDF file
-}}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\if@use@pixmap@}
-%    The following switch is used to implement the
-%    \iopz{nopixmap}\eopz{usepixmap}\fopz\space mutually exclusive
-%    options: see subsection~\ref{sS:adisealoptdec} for details.
-%    \begin{macrocode}
-\@ifdefinable\if@use@pixmap@{\newif\if@use@pixmap@}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \begin{macro}{\@temp@adiseal}
-%    A ``scratch'' macro, used as a temporary storage in the sequel.
-%    Here, we simply check that this name can be used as a macro name.
-%    \begin{macrocode}
-\@ifdefinable\@temp@adiseal{}
-%    \end{macrocode}
-%    \end{macro}
-%
-%    \subsection{Declaration of options}
-%    \label{sS:adisealoptdec}
-%
-%    The \opz{nopixmap} option inhibits the printing of the seal; more
-%    precisely, it prevents the \packlass{\adiseal} package from trying to
-%    load the \packlass{\epsfig} package and the file containing the image
-%    of the seal.  The \opz{usepixmap} option, on the contrary, tries to load
-%    the file containing the image and the \packlass{\epsfig} package,
-%    and, if both are succesfully loaded, causes the printing of the seal.
-%    Should the \packlass{\epsfig} package or the file containing the image
-%    of the seal be unavailable, the \opz{usepixmap} option will be
-%    converted to \opz{nopixmap} at package-loading time (actually, it is
-%    the "\if@use@pixmap@" switch that will be forced to ``false'').  When,
-%    for either reason, the seal is not displayed, a placeholder is printed
-%    in its place.
-%
-%    \begin{macrocode}
-\DeclareOption{nopixmap}{\@use@pixmap@false}
-\DeclareOption{usepixmap}{\@use@pixmap@true}
-%    \end{macrocode}
-%
-%    \subsection{Option processing}
-%
-%    We select the \opz{nopixmap} option by default, because the file
-%    containing the image of the seal is not included in the C.D.P.
-%    Bundle.
-%    \begin{macrocode}
-\ExecuteOptions{nopixmap}
-\ProcessOptions\relax
-%    \end{macrocode}
-%
-%    \subsection{Package loading}
-%
-%    \begin{macrocode}
-\def\@temp@adiseal#1{%
-  \@use@pixmap@false
-  \PackageWarningNoLine{\@adiseal}{%
-    Can't find the #1;\MessageBreak
-    option usepixmap ignored (converted to nopixmap).\MessageBreak
-    The ADI seal will _not_ be printed%
-  }%
-}
-\if@use@pixmap@
-  \IfFileExists{\@seal@graph@file.eps}{%
-    \IfFileExists{epsfig.sty}{%
-      \RequirePackage{epsfig}%
-    }{%
-      \@temp@adiseal{epsfig package}%
-    }%
-  }{%
-    \@temp@adiseal{pixel map for the ADI seal}%
-  }%
-\fi
-\let\@temp@adiseal\@undefined
-%    \end{macrocode}
-%
-%    \subsection{Main code}
-%
-%    Unfortunately, the code is not commented (yet).
-%
-%    \subsubsection{The two main commands}
-%
-%    \begin{macrocode}
-\@ifdefinable\@seal@box{\def\@seal@box#1{%
-  \parbox[t][42bp][c]{60bp}{\centerline{#1}}%
-}}
-\newcommand*\ADIconcert{\par\noindent
-  \emph\concertname
-  \ADIaddress
-}
-\DeclareRobustCommand*\ADIaddress{\par
-  \setbox\z@\vtop{%
-    \normalfont\normalsize
-    \leftline{%
-      \vtop{%
-        \hbox{%
-          \if@use@pixmap@
-            \edef\@temp@adiseal{%
-              \noexpand\epsfig{file=\@seal@graph@file,%
-                height=42bp,width=60bp,clip=}%
-            }%
-            \@seal@box\@temp@adiseal
-            \let\@temp@adiseal\@undefined
-          \else
-            \setlength\fboxrule{.2pt}%
-            \setlength\fboxsep{-\fboxrule}%
-            \fbox{\@seal@box\substitutesealname}%
-          \fi
-        }%
-      }%
-      \kern\baselineskip
-      \vtop{%
-        \null\nointerlineskip
-        \hbox{%
-          \Large ADI%
-          \setbox\z@\hbox{\ignorespaces\seatacronym\unskip}%
-          \ifdim\wd\z@>\z@
-            -\unhbox\z@
-          \else
-            \unhbox\z@
-          \fi
-        }%
-        \ialign{##\cr
-          \spaceskip \fontdimen\tw@\font
-            \@plus \@ne fil%
-            \@minus \fontdimen4\font
-          Associazione Dottorandi e\cr
-          Dottori di Ricerca Italiani\cr
-        }%
-        \hbox{%
-          \setbox\z@\hbox{\ignorespaces\seatname\unskip}%
-          \ifdim\wd\z@>\z@
-            --- \unhbox\z@
-          \else
-            \unhbox\z@
-          \fi
-        }%
-        \global\dimen@i\prevdepth
-      }%
-    }%
-    \kern\p@
-    \prevdepth \dimen@i
-    \leftline{\ttfamily\small\ADIWWW}%
-    \global\dimen@i\prevdepth
-  }%
-  \dimen@ \dp\z@
-  \advance \dimen@ -\dimen@i
-  \dimen@ii .5\baselineskip
-  \divide \dimen@ \dimen@ii
-  \count@ \dimen@
-  \advance \count@ 1
-  \dimen@ \dp\z@
-  \advance \dimen@ -\count@\dimen@ii
-  \box\z@
-  \prevdepth\dimen@
-}
-%    \end{macrocode}
-%
-%    \subsubsection{Names}
-%
-%    Note that "\seatacronym" and "\seatname" can also be redefined as
-%    empty strings: in this case, the package automatically suppresses
-%    some of the surrounding printings that have no meaning when those
-%    strings are empty.
-%
-%    \begin{macrocode}
-\newcommand*\concertname       {di concerto con}
-\newcommand*\seatacronym       {PD}
-\newcommand*\seatname          {Sede di Padova}
-\newcommand*\substitutesealname{Logo ADI}
-%    \end{macrocode}
-%
-%    End of the module for the \packlass{\adiseal} package.
-%    \begin{macrocode}
-%</adipk>
-%    \end{macrocode}
-%
-% \section{The code for the \packlass{\lettcdpadi} class}
-%
-%    This part of the file goes into \filedir{\lettcdpadi.cls}.
-%    \begin{macrocode}
-%<*adicl>
-%    \end{macrocode}
-%
-%    The purpose of this file is simply to supply ``glue code'' to
-%    support the legacy \packlass{\lettcdpadi} class.  The document
-%    class is ``redirected'' to \packlass{\letteracdp}, and the
-%    \packlass{\adiseal} package is automatically loaded.  Options are
-%    properly shunted, too.
-%
-%    It should be time to expunge this file from the Bundle, perhaps
-%    [v0.33], but it is also true that it occupies so few
-%    bytes\ldots\space(that is, an entire block of the disk!).
-%
-%    \subsection{Identification}
-%
-%    \begin{macrocode}
-\NeedsTeXFormat{LaTeX2e}[1998/06/01] % LaTeX2e is required!
-\ProvidesClass{lettcdpadi}
-              [2006/01/01 v0.34 (development)]
-%    \end{macrocode}
-%
-%    \subsection{Initial code}
-%
-%    This segment is empty in the \packlass{\lettcdpadi} class.
-%
-%    \subsection{Declaration of options}
-%
-%    \begin{macrocode}
-\DeclareOption{nopixmap} {\PassOptionsToPackage{nopixmap} {adiseal}}
-\DeclareOption{usepixmap}{\PassOptionsToPackage{usepixmap}{adiseal}}
-\DeclareOption*{\PassOptionsToClass{\CurrentOption}{letteracdp}}
-%    \end{macrocode}
-%
-%    \subsection{Option processing}
-%
-%    \begin{macrocode}
-\ProcessOptions\relax
-%    \end{macrocode}
-%
-%    \subsection{Class and package loading}
-%
-%    \begin{macrocode}
-\LoadClass{letteracdp}[2006/01/01]
-\RequirePackage{adiseal}[2006/01/01]
-%    \end{macrocode}
-%
-%    \subsection{Main code}
-%
-%    This segment is empty in the \packlass{\lettcdpadi} class.
-%
-%    End of the module for the \packlass{\lettcdpadi} class.
-%    \begin{macrocode}
-%</adicl>
-%    \end{macrocode}
+%    \noindent\null\par
 %
 % \section{The code for the \packlass{\cdpaddon} package}
 %
@@ -5664,26 +6421,26 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{macrocode}
 \NeedsTeXFormat{LaTeX2e}[1998/06/01] % LaTeX2e is required!
 \ProvidesPackage{cdpaddon}
-              [2006/01/01 v0.34 (development)]
+              [2015/02/08 v0.36 (development)]
 \@ifdefinable\@cdpaddon{\def\@cdpaddon{cdpaddon}}
 %    \end{macrocode}
 %
 %    \subsection{Initial code}
 %
-%    Switches.
+%    Switches; "\if@custom@lh@" added in vers.~0.36 (2015 Feb~08).
 %    \begin{macrocode}
 \def\do#1{\@ifdefinable#1{\newif#1}}
 \do\if@using@cdp@
 \do\if@use@color@
 \do\if@use@hyper@
+\do\if@custom@lh@
 %    \end{macrocode}
 %
 %    \begin{macro}{\@cdpaddon@printer}
 %    Below, we shall store in this macro the name (without the extension
 %    \filedir{.def}) of the definition file from which to read the
-%    definitions of the colors for the C.D.P.  seal.  It is needed only
-%    during the initialization of the package, and it is "\@undefined"
-%    before the end.  If it is empty, the emergency colors will be used:
+%    definitions of the colors for the C.D.P.  seal.
+%    If it is empty, the emergency colors will be used:
 %    we make this the default.
 %    \begin{macrocode}
 \@ifdefinable\@cdpaddon@printer{\let\@cdpaddon@printer\@empty}
@@ -5737,13 +6494,25 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
     \@unknownoptionerror
   \fi
 }
-\DeclareOption{bw}{\@use@color@false}
-\DeclareOption{color}{\@use@color@true}
-\DeclareOption{hypertext}{\@use@hyper@true}
-\DeclareOption{plaintext}{\@use@hyper@false}
 %    \end{macrocode}
-%    The purpose of the following ``catch-all'' option is to intercept
-%    a \opz{printer:}\ldots\ option requesting a color definition file.
+%    Vers.~0.36 (2015 Feb~08): modified the existing option so that they also
+%    deal with the new "\if@custom@lh@" switch\ldots
+%    \begin{macrocode}
+\DeclareOption{bw}{\@use@color@false\@custom@lh@false}
+\DeclareOption{color}{\@use@color@true\@custom@lh@false}
+\DeclareOption{hypertext}{\@use@hyper@true\@custom@lh@false}
+\DeclareOption{plaintext}{\@use@hyper@false\@custom@lh@false}
+%    \end{macrocode}
+%    \ldots~and added new \opz{customletterhead} option.
+%    \begin{macrocode}
+\DeclareOption{customletterhead}{%
+  \@use@color@false
+  \@use@hyper@false
+  \@custom@lh@true
+}
+%    \end{macrocode}
+%    Otherwise, we can have a \opz{printer:}\ldots\ option requesting a color
+%    definition file.
 %    \begin{macrocode}
 \DeclareOption*{%
   \expandafter\@temp@cdpaddon@a\CurrentOption,printer:,\@@@%
@@ -5768,23 +6537,19 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \subsection{Package loading}
 %
+%    V.~0.34a: fixed up the use of dvips names
+%    (bug reported by Tommaso Gordini).^^A
+%    \changes{0.34a}{2010 Jun 01}{Fixed up the use of dvips names in the
+%      \protect\packlass{\protect\cdpaddon} package (bug reported by Tommaso
+%      Gordini).}
+%    V.~0.36: also removed the ridiculous check for the presence of standard
+%    packages on the system!
 %    \begin{macrocode}
-\def\@temp@cdpaddon@a#1#2#3#4#5{%
-  \IfFileExists{#1.sty}{%
-    \RequirePackage[#2]{#1}%
-  }{%
-    \@nameuse{@use@#3@false}
-    \PackageWarningNoLine{\@cdpaddon}{%
-      Can't find the #1 package;\MessageBreak
-      option #4 ignored (converted to #5)%
-    }%
-  }%
-}
 \if@use@color@
-  \@temp@cdpaddon@a{color}{}{color}{color}{bw}
+  \RequirePackage[dvipsnames]{color}
 \fi
 \if@use@hyper@
-  \@temp@cdpaddon@a{hyperref}{}{hyper}{hypertext}{plaintext}
+  \RequirePackage{hyperref}
 \fi
 %    \end{macrocode}
 %
@@ -5794,29 +6559,28 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    \subsubsection{Redefinition of the seal, etc.}
 %
-%    The following macro is used to draw in color the thin, small line
-%    that, when the page needs to be folded, indicates where to fold it.
-%    We need to define it here, outside of the conditionals, and to
-%    assign it later to "\@folding@tag" using "\let" (see below) because
-%    it contains a "\fi" (mumble grumble\ldots).
-%    \begin{macrocode}
-\@ifdefinable\@back@folding@tag{\def\@back@folding@tag{%
-  \if@do@fold@
-    \raisebox{\@lh@folding@ht}[\z@][\z@]{%
-      \makebox[\z@][l]{%
-        \color{strong@col}%
-        \dimen@ -\@lh@right@margin
-        \advance\dimen@ 1cm%
-        \kern\dimen@ \vbox{%
-          \kern -.1\p@
-          \hrule \@height .1\p@ \@depth .1\p@ \@width 5mm%
-          \kern -.1\p@
-        }%
-      }%
-    }%
-  \fi
-}}
-%    \end{macrocode}
+%    Vers.~0.36 (2015 Feb~08): removed the "\@back@folding@tag" macro,
+%    now become unnecessary because of the introduction of the
+%    "\foldingtagrule" user command.
+%    We leave the code in place, but commented out, for documentation purposes.
+%\begin{verbatim}
+%\@ifdefinable\@back@folding@tag{\def\@back@folding@tag{%
+%  \if@do@fold@
+%    \raisebox{\@lh@folding@ht}[\z@][\z@]{%
+%      \makebox[\z@][l]{%
+%        \color{strong@col}%
+%        \dimen@ -\@lh@right@margin
+%        \advance\dimen@ 1cm%
+%        \kern\dimen@ \vbox{%
+%          \kern -.1\p@
+%          \hrule \@height .1\p@ \@depth .1\p@ \@width 5mm%
+%          \kern -.1\p@
+%        }%
+%      }%
+%    }%
+%  \fi
+%}}
+%\end{verbatim}
 %
 %    If the \packlass{\letteracdp} class is loaded\ldots
 %    \begin{macrocode}
@@ -5830,9 +6594,9 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    error if \meta{name} is undefined, and executes \meta{code}
 %    otherwise.  It is intended that \meta{code} is the code that does the
 %    actual redefinition.  Note that \meta{name} must be indicated
-%    \emph{without} the backslash.  Note also that it is not necessary to
-%    put in a second parameter for \meta{code}: simply, "{"\meta{code}"}"
-%    will become the third parameter of "\@ifundefined".
+%    \emph{without} the backslash.  Note also that it is not necessary
+%    a second parameter for \meta{code}: "{"\meta{code}"}" becomes the
+%    third parameter of "\@ifundefined".
 %    \begin{macrocode}
   \def\@temp@cdpaddon@a#1{%
     \@ifundefined{#1}{%
@@ -5845,7 +6609,10 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
         is actually undefined.\MessageBreak
         Probably, you are using an old or modified version
         of that class.\MessageBreak
-        Proceed, but some of the colors won't come out right.%
+%    \end{macrocode}
+%    Vers.~0.36 (2015 Feb~08): modified the following line:
+%    \begin{macrocode}
+        Proceed, but keep your fingers crossed!%
       }%
     }%
   }
@@ -5963,7 +6730,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    We define another handy subroutine.  Given the name \meta{boxname}
 %    of an hbox, "\@temp@cdpaddon@b{"\meta{boxname}"}" causes a
 %    "\color{strong@col}" declaration to be added at the beginning of
-%    "\"\meta{boxname}, properly contained in a group to assure that the
+%    "\"\meta{boxname}, properly contained in a group to ensure that the
 %    "\special" for restoring the previous colors is included in the box too.
 %    We use this method of setting and resetting the color inside the
 %    individual boxes because the one used in the previous versions, of
@@ -5980,18 +6747,19 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %
 %    Actual redefinition of macros begins here.
 %
-%    \begin{macro}{\@folding@tag}
-%    First, install the redefinition of "\@folding@tag" that we had
-%    prepared in advance.
+%    Vers.~0.36 (2015 Feb~08): no need, now, to redefine the "\@folding@tag"
+%    macro: just redefine the user-level command "\foldingtagrule"
+%    (much neater!).
 %    \begin{macrocode}
-    \@temp@cdpaddon@a{@folding@tag}{%
-      \let\@folding@tag\@back@folding@tag
+    \renewcommand*\foldingtagrule{%
+      \color{strong@col}%
+      \CDPFactoryFoldingTagRule
     }
 %    \end{macrocode}
-%    \end{macro}
+%
 %    \begin{macro}{\@logo@box@base}
 %    \changes{0.32}{2002 Jul 01}{Eliminated an awful bug introduced with
-%      version 0.31 (a conditional that could not appear at this spot)}
+%      version 0.31 (a conditional that could not appear at this spot).}^^A
 %    Color the main part of the seal.
 %    \begin{macrocode}
     \@temp@cdpaddon@a{@logo@box@base}{%
@@ -6098,6 +6866,147 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
   \fi
 %    \end{macrocode}
 %
+%    Support for user-defined letterheads added in vers.~0.36 (2015 Feb~08).
+%    Support for custom logo (cf.~\sty{logo} pagestyle and its relatives)
+%    still kept hidden.
+%
+%    First, define storage boxes to hold custom head, foot, and logo.
+%    \begin{macrocode}
+  \newsavebox\@cdp@custom@lhead@box
+  \newsavebox\@cdp@custom@lfoot@box
+  \newsavebox\@cdp@custom@llogo@box
+%    \end{macrocode}
+%
+%    \begin{environment}{customletterhead}
+%    \begin{environment}{customletterfoot}
+%    \begin{environment}{customletterlogo}
+%    These three environments are defined similarly, so we use one of the
+%    ``scratch'' macros to perform their definition
+%    The parameters are:\strut\\*
+%    \strut
+%    \begin{tabular}{r@{}l}
+%      \param{1} & \( \texttt{head} \mathbin{|} \texttt{foot} \mathbin{|}
+%          \texttt{logo} \);\\
+%      \param{2} & intended alignment of the \env{minipage}
+%          (\( \texttt{b} \mathbin{|} \texttt{t} \));\\
+%      \param{3} & either "\vss" or nothing;\\
+%      \param{4} & either "\vss" or nothing.\\
+%    \end{tabular}\strut
+%    \begin{macrocode}
+  \def\@temp@cdpaddon@b#1#2#3#4{%
+    \newenvironment*{customletter#1}[1]{%
+%    \end{macrocode}
+%    Save in the appropriate box, pretending that they have zero height and
+%    depth\ldots
+%    \begin{macrocode}
+      \setbox\@nameuse{@cdp@custom@l#1@box}\vbox to\z@ \bgroup
+        \hsize ##1\relax
+        \parskip \z@skip
+        #3% either \vss or nothing
+%    \end{macrocode}
+%    \ldots~the contents of a temporary \env{minipage}; note that we need to
+%    disable the ``"Missing \begin{document}"'' error, which is triggered by
+%    "\everypar".
+%    \begin{macrocode}
+        \everypar{}%
+        \noindent\minipage[#2]{##1}%
+          \null
+    }{%
+%    \end{macrocode}
+%    Code for ending the \env{minipage}: note that we smash to zero the 
+%    possible depth of the contents.
+%    \begin{macrocode}
+          \par
+          \vskip -\baselineskip
+          \null
+        \endminipage
+        #4% either \vss or nothing
+      \egroup
+%    \end{macrocode}
+%    ``Lift'' the definition out of the group implied by the environment.
+%    We have used the outer boxes, above, because we prefer not to keep around
+%    any ``scratch'' boxes (\emph{e.g.}, "\box1") when we must pass control to
+%    the final user.
+%    \begin{macrocode}
+      \global \setbox \@ne \box \@nameuse{@cdp@custom@l#1@box}%
+      \xdef\@cdp@reserved{%
+        \setbox \@nameuse{@cdp@custom@l#1@box}\box \@ne
+      }%
+      \aftergroup \@cdp@reserved
+    }%
+  }%
+%    \end{macrocode}
+%    Perform definitions of the three abovementioned environments.
+%    \begin{macrocode}
+  \@temp@cdpaddon@b{head}{b}{\vss}{}
+  \@temp@cdpaddon@b{foot}{t}{}{\vss}
+  \@temp@cdpaddon@b{logo}{b}{\vss}{}
+%    \end{macrocode}
+%    \end{environment}
+%    \end{environment}
+%    \end{environment}
+%
+%    \begin{macro}{\ruleacrossheadorfoot}
+%    Draw a rule across head or foot.  Synopsis:
+%    \begin{flushleft}
+%      "\ruleacrossheadorfoot["\meta{wdth\_l}"]["\meta{wdth\_r}"]"
+%    \end{flushleft}
+%    \meta{wdth\_l} is the inset from the left margin (defaults to zero),
+%    a negative inset causes the rule to protrude into the margin itself;
+%    \meta{wdth\_r} is the inset from the right margin (defaults to
+%    \meta{wdth\_l}).  Both \meta{wdth\_l} and \meta{wdth\_r} must be
+%    rigid lengths.  \emph{Note:} "\@tempdima" and "\@tempdimb" are used here.
+%    \begin{macrocode}
+  \newcommand*\ruleacrossheadorfoot[1][\z@]{\par
+    \setlength\@tempdima{#1}%
+    \@ifnextchar [% ] bracket matching
+      \@cdp@rule@across@x
+      {%
+        \@tempdimb \@tempdima
+        \@cdp@rule@across
+      }%
+  }
+%    \end{macrocode}
+%    \end{macro}
+%
+%    Inner implementation.
+%    \begin{macrocode}
+  \@ifdefinable\@cdp@rule@across@x{\def\@cdp@rule@across@x[#1]{%
+    \setlength\@tempdimb{#1}%
+    \@cdp@rule@across
+  }}
+  \@ifdefinable\@cdp@rule@across{\def\@cdp@rule@across{
+    \nobreak
+    \vskip -\baselineskip
+    \hb@xt@ \hsize {%
+      \kern \@tempdima \hrulefill \kern \@tempdimb
+    }%
+  }}
+%    \end{macrocode}
+%
+%    If the \opz{customletterhead} option is in force, install custom
+%    head\slash foot\slash logo.
+%    \begin{macrocode}
+  \if@custom@lh@
+    \@temp@cdpaddon@a{@cdp@head}{\def\@cdp@head{%
+      \hss\copy\@cdp@custom@lhead@box\hss
+    }}
+    \@temp@cdpaddon@a{@cdp@foot}{\def\@cdp@foot{%
+      \hss\copy\@cdp@custom@lfoot@box\hss
+    }}
+%    \end{macrocode}
+%    The logo is assumed to protrude to the left of the header line.
+%    \begin{macrocode}
+    \@temp@cdpaddon@a{@cdp@logo}{\def\@cdp@logo{%
+      \hb@xt@ \z@ {\hss\copy\@cdp@custom@llogo@box}%
+    }}
+%    \end{macrocode}
+%    Do not forget to reset "\longindentation"!
+%    \begin{macrocode}
+    \setlength\longindentation{.5\textwidth}
+  \fi
+%    \end{macrocode}
+%
 %    We now deal with hyperlinks.  If the user requested them\ldots
 %    \begin{macrocode}
   \if@use@hyper@
@@ -6108,7 +7017,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    typesetting until that moment.  Note that we just need to encapsulate
 %    the web address of the \emph{Coordinamento} into an "\href" command:
 %    the color-switching command has already been given above, inside the
-%    "\@cdp@foot" box (the color must be changed independently from the use
+%    "\@cdp@foot" box (the color must be changed independently of the use
 %    of hyperlinks).
 %    \begin{macrocode}
     \AtBeginDocument{%
@@ -6165,7 +7074,18 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 \let\if@use@hyper@\@undefined
 \let\@use@hyper@true\@undefined
 \let\@use@hyper@false\@undefined
-\let\@back@folding@tag\@undefined
+%    \end{macrocode}
+%    Vers.~0.36 (2015 Feb~08): added the following three lines\ldots
+%    \begin{macrocode}
+\let\if@custom@lh@\@undefined
+\let\@custom@lh@true\@undefined
+\let\@custom@lh@false\@undefined
+%    \end{macrocode}
+%    \ldots~and removed the following one:
+%\begin{verbatim}
+%\let\@back@folding@tag\@undefined
+%\end{verbatim}
+%    \begin{macrocode}
 \let\@cdpaddon@printer\@undefined
 \let\@temp@cdpaddon@b\@undefined
 %    \end{macrocode}
@@ -6206,11 +7126,144 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \begin{macrocode}
 %</addon>
 %    \end{macrocode}
+%    \noindent\null\par
+%
+% \section{The code for the \packlass{\cdpbabel} package}
+%
+%    This part of the file goes into \filedir{\cdpbabel.sty}.
+%    \begin{macrocode}
+%<*babel>
+%    \end{macrocode}
+%
+%    \subsection{Identification}
+%
+%    As usual, the reason for requesting this specific version of \LaTeXe\ is
+%    shrouded in mystery\ldots
+%    \begin{macrocode}
+\NeedsTeXFormat{LaTeX2e}[1998/09/02] % LaTeX2e is required!
+\ProvidesPackage{cdpbabel}
+                [2015/02/08 v0.36 (development)]
+\@ifdefinable\@cdpbabel{\def\@cdpbabel{cdpbabel}}
+%    \end{macrocode}
+%
+%    \subsection{Initial code}
+%
+%    Usual check for availability of names.
+%    \begin{macrocode}
+\def\do#1{\@ifdefinable #1{\let #1\@empty}}
+\do\@cdpbabel@perform@redefinitions
+\do\@cdpbabel@letter@names
+\do\@cdpbabel@artlet@names
+%    \end{macrocode}
+%
+%    \subsection{Declaration of options}
+%
+%    Options specify which languages should be activated.  A language option is
+%    both passed on to the \packlass{\babel} package and used to select and
+%    load a ``C.D.P. language definition file''.
+%    \begin{macrocode}
+\DeclareOption*{%
+  \IfFileExists{cdpnames\CurrentOption.ldf}{%
+    \input{cdpnames\CurrentOption.ldf}%
+%    \end{macrocode}
+%    If \( "\CurrentOption" = \mbox{\opz{italian}} \), say,
+%    then the following amounts to
+%\begin{verbatim}
+%\def\do#1{\g@addto@macro\@cdpbabel@perform@redefinitions{%
+%    \addto\captionsitalian{#1}%
+%}}
+%\end{verbatim}
+%    which is used just below with parameter~\#1 set equal to
+%    \emph{the expansion of} either "\@cdpbabel@letter@names" or
+%    "\@cdpbabel@artlet@names".
+%    \begin{macrocode}
+    \edef\do##1{%
+      \noexpand\g@addto@macro
+        \noexpand\@cdpbabel@perform@redefinitions
+        {%
+          \noexpand\addto \csname captions\CurrentOption \endcsname
+            {##1}%
+        }%
+    }%
+    \@ifclassloaded{letteracdp}{%
+      \expandafter\do \expandafter{\@cdpbabel@letter@names}%
+    }{}%
+    \@ifclassloaded{articoletteracdp}{%
+      \expandafter\do \expandafter{\@cdpbabel@artlet@names}%
+    }{}%
+    \PackageInfo{\@cdpbabel}{%
+      Redefined the names of "C.D.P. Bundle" captions\MessageBreak
+      for the language `\CurrentOption'%
+    }%
+  }{%
+    \PackageError{\@cdpbabel}{%
+      Name def. file `cdpnames\CurrentOption.ldf' not found%
+    }{%
+      Files of the form `cdpnames<language>.ldf' are meant
+      to define the names\MessageBreak
+      in the language <language> of some captions used by
+      the "C.D.P. Bundle".\MessageBreak
+      You requested\MessageBreak
+      \space\space<language> = `\CurrentOption',\MessageBreak
+      but the corresponding file is missing; therefore,
+      probably some of these\MessageBreak
+      captions will not be printed as intended.\MessageBreak
+      This error affects only the \@cdpbabel\space package,
+      but not the babel package.\MessageBreak
+      You may continue:
+      type \space <return> \space to proceed.%
+    }%
+  }%
+  \PassOptionsToPackage{\CurrentOption}{babel}%
+}
+%    \end{macrocode}
+%
+%    \subsection{Option processing}
+%
+%    \mbox{$*$-form} of "\ProcessOptions" required here.
+%    \begin{macrocode}
+\ProcessOptions*
+%    \end{macrocode}
+%    Now, the following are no longer needed.
+%    \begin{macrocode}
+\let \do = \@undefined
+\let \@cdpbabel@letter@names = \@undefined
+\let \@cdpbabel@artlet@names = \@undefined
+%    \end{macrocode}
+%
+%    \subsection{Package loading}
+%
+%    Note that the \packlass{\cdpbabel} package is loaded \emph{instead} of
+%    \packlass{\babel}.
+%    \begin{macrocode}
+\RequirePackage{babel}
+%    \end{macrocode}
+%
+%    \subsection{Main code}
+%
+%    At this point, "\@cdpbabel@perform@redefinitions" contains exactly the 
+%    set of "\addto\captions"\meta{language}"{"\ldots"}" commands that need
+%    to be executed for the languages that have been specified in the options.
+%    So, execute them.
+%    \begin{macrocode}
+\@cdpbabel@perform@redefinitions
+%    \end{macrocode}
+%    After that, "\@cdpbabel@perform@redefinitions" is no longer needed.
+%    \begin{macrocode}
+\let \@cdpbabel@perform@redefinitions = \@undefined
+%    \end{macrocode}
+%
+%    End of the module for the \packlass{\cdpbabel} package.
+%    \begin{macrocode}
+%</babel>
+%    \end{macrocode}
+%    \noindent\null\par
 %
 % \section{Definition and configuration files}
 %
 %    This section contains the ancillary files (definition and
-%    configuration files) used by the \packlass{\cdpaddon} package.
+%    configuration files) used by the \packlass{\cdpaddon} and
+%    the \packlass{\cdpbabel} packages.
 %
 %    \subsection{The \filedir{\example} file}
 %
@@ -6233,7 +7286,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %%% the name and the release date, respectively, of your file.
 %%% Note that the extension ".def" must be included in the file name,
 %%% and that the date is in the format YYYY/MM/DD.
-\ProvidesFile{cdpshues-example.def}[2006/01/01 Printer-dependent file]
+\ProvidesFile{cdpshues-example.def}[2015/02/08 Printer-dependent file]
 %%%
 %%% Define here the colors to use to draw the C.D.P. seal;
 %%% "slight@col" is the color used to paint the inner of the D and
@@ -6252,7 +7305,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    \filedir{\epson}.
 %    \begin{macrocode}
 %<*epson>
-\ProvidesFile{epson-stylus-740.def}[2006/01/01 Printer-dependent file]
+\ProvidesFile{epson-stylus-740.def}[2015/02/08 Printer-dependent file]
 \definecolor{slight@col}{rgb}{.8,1,.8}
 \definecolor{strong@col}{rgb}{0,.266667,0}
 %</epson>
@@ -6263,7 +7316,7 @@ mediumsubject,uprightsignature,noPS,indent,105x37labels}
 %    This part of the file goes into the definition file \filedir{\hplj}.
 %    \begin{macrocode}
 %<*hplj>
-\ProvidesFile{hp-laserjet-4500.def}[2006/01/01 Printer-dependent file]
+\ProvidesFile{hp-laserjet-4500.def}[2015/02/08 Printer-dependent file]
 \definecolor{slight@col}{cmyk}{.1,0,.1,0}
 \definecolor{strong@col}{cmyk}{.5,0,.5,.5}
 %</hplj>
@@ -6289,7 +7342,7 @@ This file is special in that the cdpaddon package stops reading it as
 soon as it encounters the first "\DeclareCDPSealHuesDefault" command:
 all subsequent lines are ignored, and can hence contain explanatory
 comments, just like these.  To save disk space (although, in this era
-of gigabytes, this is not a compelling issue!), you can, if you want,
+of terabytes, this is not a compelling issue!), you can, if you want,
 delete all lines in this file except the one which contains the first
 occurrence of a "\DeclareCDPSealHuesDefault" command (12 lines above);
 but if you do so, please be sure to read them before deleting them!
@@ -6325,6 +7378,66 @@ taken into consideration: all subsequent lines are ignored.
 %</config>
 %    \end{macrocode}
 %
+%    \subsection{The \filedir{\cdpnamesenglish} file}
+%
+%    This part of the file goes into the language definition file
+%    \filedir{\cdpnamesenglish}.
+%    \begin{macrocode}
+%<*lang-en>
+\ProvidesFile{cdpnamesenglish.ldf}[2015/02/08]
+\def\@cdpbabel@letter@names{%
+  \def\subjectname      {Subject:}%
+  \def\registeredname   {Registered}%
+  \def\registeredRRname {\registeredname~R.R.}%
+  \def\andccname        {cc}%
+  \def\ccname           {cc:}%
+  \def\enclname         {Encl:}%
+  \def\PSname           {P.S.:}%
+  \def\headtoname       {To:}%
+  \def\lettername       {Letter}%
+}
+\def\@cdpbabel@artlet@names{%
+  \def\contentsname     {Contents}%
+  \def\listfigurename   {List of figures}%
+  \def\listtablename    {List of tables}%
+%%  \def\refname          {References}%
+%%  \def\indexname        {Index}%
+%%  \def\figurename       {Figure}%
+%%  \def\tablename        {Table}%
+}
+%</lang-en>
+%    \end{macrocode}
+%
+%    \subsection{The \filedir{\cdpnamesitalian} file}
+%
+%    This part of the file goes into the language definition file
+%    \filedir{\cdpnamesitalian}.
+%    \begin{macrocode}
+%<*lang-it>
+\ProvidesFile{cdpnamesitalian.ldf}[2015/02/08]
+\def\@cdpbabel@letter@names{%
+  \def\subjectname      {Oggetto:}%
+  \def\registeredname   {Raccomandata}%
+  \def\registeredRRname {\registeredname~A.R.}%
+  \def\andccname        {e~p.~c.}%
+  \def\ccname           {P.~c.:}%
+  \def\enclname         {Allegati:}%
+  \def\PSname           {P.S.:}%
+  \def\headtoname       {A:}%
+  \def\lettername       {Lettera}%
+}
+\def\@cdpbabel@artlet@names{%
+  \def\contentsname     {Sommario}%
+  \def\listfigurename   {Indice delle figure}%
+  \def\listtablename    {Indice delle tabelle}%
+  \def\refname          {Testi citati}%
+%%  \def\indexname        {Indice analitico}%
+%%  \def\figurename       {Figura}%
+%%  \def\tablename        {Tabella}%
+}
+%</lang-it>
+%    \end{macrocode}
+%
 % \section{End of input}
 %
 %    The usual "\endinput" which prevents the \DS\ program from putting
diff --git a/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.ins b/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.ins
index c19b8da1ee8..92ab703c57a 100644
--- a/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.ins
+++ b/Master/texmf-dist/source/latex/cdpbundl/cdpbundl.ins
@@ -3,7 +3,8 @@
 %
 % This file is part of a work named "C.D.P. Bundle".
 %
-% Copyright (C) 1999-2006 by Gustavo MEZZETTI <mezzetti@math.unipd.it>.
+% Copyright (C) 1999-2015 by Gustavo MEZZETTI
+%                           <gustavo.mezzetti@istruzione.it>.
 %
 % The C.D.P. Bundle may be distributed and/or modified under the
 % conditions of the LaTeX Project Public License, either version 1.3
@@ -11,7 +12,7 @@
 % 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.
+% version 2005/12/01 or later.
 %
 % The C.D.P. Bundle has the LPPL maintenance status
 %   "author-maintained".
@@ -23,42 +24,103 @@
 %
 % 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 is not allowed.
+% License, and should be avoided.
 %
-% January 1, 2006 (vers. 0.34)
+% February 8, 2015 (vers. 0.36)
 %
 \input docstrip
 
 \def\filename{cdpbundl.dtx}
 
+\newif\ifWritingToDirectoryOfTDS
+\WritingToDirectoryOfTDSfalse
+
+\edef\WriteToDir{\WriteToDir}
+\def\TryToUseMyDir{%
+	\usedir{tex/latex/cdpbundl}
+	\ifx \destdir\WriteToDir \else
+		\WritingToDirectoryOfTDStrue
+	\fi
+}
+\def\Y{Y}
+
+
+
 \Msg{----------------------------------------------------------------}
 \Msg{}
 \Msg{Unpacking the C.D.P. Bundle.}
 \Msg{}
-\Msg{The macro files contained in the C.D.P. Bundle are not standard,}
-\Msg{thus no attempt will be made to put the generated files into any}
-\Msg{of the standard LaTeX directories, using the \string\usedir\space facility of}
-\Msg{DocStrip; rather, they will all be put in the current directory.}
-\Msg{In order to finish the installation, you'll have to move them to}
-\Msg{a directory where LaTeX can find them; such directories may vary}
-\Msg{from one TeX implementation to another, and even among different}
-\Msg{installations of the same implementation. \space See the documentation}
-\Msg{of your TeX implementation for how to locate them.}
+\Msg{The macro files contained in the C.D.P. Bundle are now standard,}
+\Msg{so it now makes sense to try to install the generated files into}
+\Msg{their own TeX directory, using the \string\usedir\space facility of DocStrip;}
+\Msg{if that fails, they will be just saved in the current directory.}
+\Msg{In this case, in order to finish the installation, you will have}
+\Msg{to move them into a directory where LaTeX can find them: see the}
+\Msg{documentation specific to your TeX implementation to learn where}
+\Msg{such directories are located on your system.}
 \Msg{}
-\Msg{The complete list of the files you need to move will be given at}
-\Msg{the end of the run.}
+
+\catcode`\@ = 11
+
+\ifx \usedir\alt@usedir
+
+\Msg{On your system, the name of the installation directory should be}
+\Msg{}
+\Msg{\space\space\space\space\showdirectory{tex/latex/cdpbundl}}
+\Msg{}
+\Msg{Please make sure that the above directory exists on your system,}
+\Msg{and that you have permission to create or overwrite files in it;}
+\Msg{if so, you may choose to put the generated files directly there.}
 \Msg{}
 \Msg{----------------------------------------------------------------}
 \Msg{}
-\Ask{\answer}{Press \space <return> \space to continue
+\Msg{Put files directly in suggested directory}
+\Msg{\space\space\space\space\showdirectory{tex/latex/cdpbundl}}
+\Ask\answer{or not? [y/n]}
+
+\ifx \answer\yes
+	\TryToUseMyDir
+\else \ifx \answer\y
+	\TryToUseMyDir
+\else \ifx \answer\Y
+	\TryToUseMyDir
+\fi \fi \fi
+
+\else % of \ifx \usedir\alt@usedir
+
+\Msg{It seems that the configuration of your system does not allow us}
+\Msg{to use the \string\usedir\space facility: writing files to current directory.}
+
+\fi % of \ifx \usedir\alt@usedir
+
+\Msg{}
+
+\ifWritingToDirectoryOfTDS
+
+\Msg{Trying to install files directly in the proposed directory.}
+\Msg{}
+
+\else
+
+\Msg{Either you chose NOT to install files in the proposed directory,}
+\Msg{or, despite your choice, your system is not configured to permit}
+\Msg{you to do so. \space Therefore all files will be placed in the current}
+\Msg{directory and you will have to move them to a suitable directory}
+\Msg{by hand. \space At the end of this run, you will be presented with the}
+\Msg{complete list of the files you need to move.}
+\Msg{}
+\Ask\answer{Press \space <return> \space to continue
 	(your \string\answer\space will be ignored).}
 
+\fi
+
 \preamble
 
 This is a generated file.
 It is part of a work named "C.D.P. Bundle".
 
-Copyright (C) 1999-2006 by Gustavo MEZZETTI <mezzetti@math.unipd.it>.
+Copyright (C) 1999-2015 by Gustavo MEZZETTI
+                          <gustavo.mezzetti@istruzione.it>.
 
 The C.D.P. Bundle may be distributed and/or modified under the
 conditions of the LaTeX Project Public License, either version 1.3
@@ -66,7 +128,7 @@ 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.
+version 2005/12/01 or later.
 
 The C.D.P. Bundle has the LPPL maintenance status
   "author-maintained".
@@ -78,7 +140,9 @@ 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 is not allowed.
+License, and should be avoided.
+
+February 8, 2015 (vers. 0.36)
 
 \endpreamble
 
@@ -87,28 +151,42 @@ License, and is not allowed.
 \generate{
 	\file{letteracdp.cls}      {\from{\filename}{letter}}
 	\file{articoletteracdp.cls}{\from{\filename}{artico}}
-	\file{adiseal.sty}         {\from{\filename}{adipk}}
-	\file{lettcdpadi.cls}      {\from{\filename}{adicl}}
 	\file{cdpaddon.sty}        {\from{\filename}{addon}}
+	\file{cdpbabel.sty}        {\from{\filename}{babel}}
 	\file{cdpshues-example.def}{\from{\filename}{example}}
 	\file{epson-stylus-740.def}{\from{\filename}{epson}}
 	\file{hp-laserjet-4500.def}{\from{\filename}{hplj}}
 	\file{cdpshues.cfg}        {\from{\filename}{config}}
+	\file{cdpnamesenglish.ldf} {\from{\filename}{lang-en}}
+	\file{cdpnamesitalian.ldf} {\from{\filename}{lang-it}}
 }
 
 \Msg{}
+
+\ifWritingToDirectoryOfTDS
+
+\Msg{Installation finished. \space Check that the proposed directory}
+\Msg{\space\space\space\space\showdirectory{tex/latex/cdpbundl}}
+\Msg{has been correctly updated.}
+
+\else
+
 \Msg{To finish the installation, please move the following files into}
 \Msg{a directory where LaTeX looks for inputs files:}
 \Msg{}
-\Msg{\space\space\space\space adiseal.sty}
 \Msg{\space\space\space\space articoletteracdp.cls}
 \Msg{\space\space\space\space cdpaddon.sty}
+\Msg{\space\space\space\space cdpbabel.sty}
+\Msg{\space\space\space\space cdpnamesenglish.ldf}
+\Msg{\space\space\space\space cdpnamesitalian.ldf}
 \Msg{\space\space\space\space cdpshues-example.def}
 \Msg{\space\space\space\space cdpshues.cfg}
 \Msg{\space\space\space\space epson-stylus-740.def}
 \Msg{\space\space\space\space hp-laserjet-4500.def}
-\Msg{\space\space\space\space lettcdpadi.cls}
 \Msg{\space\space\space\space letteracdp.cls}
+
+\fi
+
 \Msg{}
 \Msg{Happy TeXing!}