% \iffalse meta-comment
%
% Copyright 2006--2022 Jérôme Lelong <jerome.lelong@gmail.com>
% 
% It may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3c
% 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 1.3c or later is part of all distributions of LaTeX 
% version 2005/12/01 or later.
% 
% 
% \fi
% \iffalse
%<*driver>
\ProvidesFile{amsaddr.dtx}
%</driver>
%<class>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
%<class>\ProvidesClass{amsaddr}
%<*class>
    [2026/01/30 v1.3 .dtx amsaddr file]
%</class>
%
%<*driver>
\documentclass{ltxdoc}
\usepackage{a4}
\DisableCrossrefs
\CodelineIndex
\RecordChanges
\begin{document}
  \DocInput{amsaddr.dtx}
  \PrintChanges
\end{document}
%</driver>
% \fi
%
% \GetFileInfo{amsaddr.dtx}
% \CheckSum{319}
%
% \CharacterTable
%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
%   Digits        \0\1\2\3\4\5\6\7\8\9
%   Exclamation   \!     Double quote  \"     Hash (number) \#
%   Dollar        \$     Percent       \%     Ampersand     \&
%   Acute accent  \'     Left paren    \(     Right paren   \)
%   Asterisk      \*     Plus          \+     Comma         \,
%   Minus         \-     Point         \.     Solidus       \/
%   Colon         \:     Semicolon     \;     Less than     \<
%   Equals        \=     Greater than  \>     Question mark \?
%   Commercial at \@     Left bracket  \[     Backslash     \\
%   Right bracket \]     Circumflex    \^     Underscore    \_
%   Grave accent  \`     Left brace    \{     Vertical bar  \|
%   Right brace   \}     Tilde         \~}
%
%
% \changes{v1.0}{2004/11/05}{Initial version}
% \changes{v1.1}{2013/04/02}{Fix space alignment}
% \changes{v1.2}{2022/09/10}{Fix error with {\tt \textbackslash dedicatory}}
% \changes{v1.3}{2026/01/30}{Honor {\tt \textbackslash emailaddrname}}
%
% \GetFileInfo{amsaddr.dtx}
%
% \DoNotIndex{\newcommand,\newenvironment}
%
% \date{\today}
% \title{The \textsf{amsaddr} class\thanks{This document
%   corresponds to \textsf{amsaddr}~\fileversion, dated \filedate.}}
% \author{J\'er\^ome Lelong \\ \texttt{jerome.lelong@gmail.com}}
%
% \maketitle
%
% \begin{abstract}
%   This package is intended to be used with the \textsf{amsart} document class only. It lets you move the authors' affiliations either just below the authors' names on the front page or as footnotes on the first page. The email addresses are always listed as a footnote on the front page.
% \end{abstract}
%
%
% \tableofcontents
%
% \section{License}
%
% This package is copyright \textcopyright\ 2006-2022 by:
%
% \begin{quote}
%   J\'er\^ome Lelong, Grenoble INP - UGA, Grenoble, France\\
%   E-Mail: \texttt{jerome.lelong@gmail.com}
% \end{quote}
%
% This program can be redistributed and/or modified under the terms
% of the LaTeX Project Public License, distributed from CTAN
% archives available from \texttt{http://www.latex-project.org/lppl.txt}; either
% version 1.3c of the License, or (at your option) any later version. 
%
%
% \section{Usage}
%
%
% To use this package, you need to include the directive |\usepackage{amsaddr}| in your
% |.tex| file. Alternatively, you may also use it with the |foot| option
% |\usepackage[foot]{amsaddr}|. When using the |foot| option, the adresses are put as
% footnotes on the first page of the document.
%
% A typical usage looks like the following
%
% \begin{verbatim}
% \author{author one and author two}
% \address{common address of authors one and two}
%
% \author{author three}
% \address{author three address}
%
% \email{list of emails}
% \end{verbatim}
%
% If |amsaddr| is used without the |foot| option, the addresses declared with the |\address| command are printed just below the authors'names declared with the preceding |\author| command. The emails appear as a footnote like this
% \\
%
% {\it E-mail address}: {\texttt{email one}, \texttt{email two}, and so on}
% \\
% The text ``{\it E-mail address}'' can be customized by redefining |\emailaddrname|, which has default definition
% \begin{verbatim}
% \def\emailaddrname{{\itshape Email address}}
% \end{verbatim}
% Note the use of |\itshape| inside the definition.
%
% If the option |foot| was passed to the package, you may consider numbering authors' names so that you can use numbered footnotes for the affiliations.
% 
% \begin{verbatim}
% \author{author one$^1$ and author two$^1$}
% \address{$^1$common address of authors one and two}
% 
% \author{author three$^2$}
% \address{$^2$author three address}
% 
% \email{list of emails}
% \end{verbatim}
%
% As in standard |amsart| documents, an option can be passed to the |\author| command to specify the replacement for the author's name on the running headers.
%
%\begin{center}
%  \begin{verbatim}
%\author[header name of the author]{author name}
%  \end{verbatim}
%\end{center}
%
%  
% \StopEventually{}
%
% \section{Implementation}
%
%    \begin{macrocode}
  \def\filename{amsaddr}
  \def\fileversion{v1.0}
  \def\filedate{2006/12/12}
  \ifx\protected@edef\@undefined
     \let\protected@edef\edef
  \fi
%    \end{macrocode}
%
% The |foot| option enables to move the affiliation related material to the bottom of the fisrt page as footnotes.
%
%    \begin{macrocode}
\newif\if@footaddr
\DeclareOption{foot}{\@footaddrtrue}
\ProcessOptions\relax
%    \end{macrocode}
%
%
% \begin{macro}{\author}
%
% The |\author| macro can be used the same way as in other |amsart| documents. The variable |g@author| is used to count the total number of authors.
%
%    \begin{macrocode}
\newcounter{g@author}
\setcounter{g@author}{0}
\renewcommand{\author}[2][]{%
  \stepcounter{g@author}
  \ifx\@empty\authors
    \gdef\authors{#2}%
  \else
    \g@addto@macro\authors{\and#2}%
  \fi
  \g@addto@macro\addresses{\author{#2}}%
  \@ifnotempty{#1}{%
    \ifx\@empty\shortauthors
      \gdef\shortauthors{#1}%
    \else
      \g@addto@macro\shortauthors{\and#1}%
    \fi
  }%
}
%    \end{macrocode}
% \end{macro}
%
%
% \begin{macro}{\email}
% The |\email| command is used to specify the different authors. The email addresses can be specified in a unique command or using separate invocations of the command.
%    \begin{macrocode}
\let\emails\@empty
\renewcommand{\email}[2][]{
  \ifx\@empty\emails
    \gdef\emails{\mbox{#2}}
  \else
    \g@addto@macro\emails{,\space\mbox{#2}}
  \fi
}
%    \end{macrocode}
% \end{macro}
%
% Process |\author| and |\address| macros 
%
%    \begin{macrocode}
\def\@set@authors@addresses{\par
  \skip@30\p@ 
  \centering
  \begingroup
  \def\author##1{\par\vskip\skip@\MakeUppercase{##1}}%
  \def\\{\protect\linebreak}%
  \centering
  \def\address##1##2{\par\addvspace\bigskipamount%
    {\itshape\ignorespaces##2}%
  }%
  \def\email##1##2{%
    \@ifnotempty{##2}{, \ignorespaces{\ttfamily##2}}}%
  \def\curraddr##1##2{}%
  \def\urladdr##1##2{}%
  \addresses
  \endgroup
  \par
}
%    \end{macrocode}
%
% \begin{macro}{\@setfoot@addresses}
% The |\@setfoot@addresses| macro is used to print the addresses as footnotes. This macro is called when the |foot| option is passed to the package.
%    \begin{macrocode}  
\def\@setfoot@addresses{
  \def\author##1{}%
  \def\\{\unskip, \ignorespaces}%
  \newif\if@firstaddr
  \@firstaddrtrue
  \def\address##1##2{%
    \if@firstaddr\@firstaddrfalse\else\par\fi
    \@ifnotempty{##1}{(\ignorespaces##1\unskip) }%
    {\scshape\ignorespaces##2}%
  }%
  \def\email##1##2{}%
  \def\curraddr##1##2{}%
  \def\urladdr##1##2{}%
  \addresses
}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\@setaddresses}
% The |\@setaddresses| macro is used to process the addresses when they are to appear just below the authors' names on the front page.
%    \begin{macrocode}  
\def\@setaddresses{\par
  \nobreak \begingroup
  \def\author##1{\nobreak\addvspace\bigskipamount}%
  \def\\{\unskip, \ignorespaces}%
  \interlinepenalty\@M
  \def\address##1##2{}%
  \def\email##1##2{}%
  \def\curraddr##1##2{\begingroup
    \@ifnotempty{##2}{\nobreak\indent\curraddrname%
      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
      ##2\par}\endgroup}%
  \def\urladdr##1##2{\begingroup
    \@ifnotempty{##2}{\nobreak\indent{\itshape URL}%
      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
      \ttfamily##2\par}\endgroup}%
  \addresses
  \endgroup
}
%    \end{macrocode}
% \end{macro}
% \begin{macro}{\@setemails}
% The |\@setemails| macro is called by the |\maketitle| command to print the email addresses.
%    \begin{macrocode}
\def\@setemails{%
  \mbox{\emailaddrname:\space}{\ttfamily\emails}.
}
%    \end{macrocode}
% \end{macro}
%
% \begin{macro}{\@maketitle}
% The |\@maketitle| macro is used to replace the standard |\makefile| command. Before issuing this command, no authors, affiliations, nor emails are printed.
%    \begin{macrocode}  
\def\@maketitle{%
  \normalfont\normalsize
  \let\@makefnmark\relax  \let\@thefnmark\relax
  \if@footaddr\@footnotetext{\@setfoot@addresses}\fi
  \ifx\@empty\emails\else \@footnotetext{\@setemails}\fi
  \ifx\@empty\@date\else \@footnotetext{\@setdate}\fi
  \ifx\@empty\@subjclass\else \@footnotetext{\@setsubjclass}\fi
  \ifx\@empty\@keywords\else \@footnotetext{\@setkeywords}\fi
  \ifx\@empty\thankses\else \@footnotetext{%
    \def\par{\let\par\@par}\@setthanks}\fi
  \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}%
  \global\topskip42\p@\relax % 5.5pc   "   "   "     "     "
  \@settitle
  \if@footaddr\ifx\@empty\authors \else \@setauthors \fi
  \else%
     \ifx\@empty\authors \else \@set@authors@addresses \fi
  \fi
  \ifx\@empty\@dedicatory
  \else
    \baselineskip18\p@
    \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}%
      \global\dimen@i\prevdepth}\prevdepth\dimen@i
  \fi
  \@setabstract
  \normalsize
  \if@titlepage
    \newpage
  \else
    \dimen@34\p@ \advance\dimen@-\baselineskip
    \vskip\dimen@\relax
  \fi
  \let\addresses\relax
  \let\@setfoot@addresses\relax
} % end \@maketitle
%    \end{macrocode}
% \end{macro}
%
% In |amsart| documents, affiliations are normally printed by the |\enddoc@text| command. To avoid a double printing of the considered material, the |\enddoc@text| macro has to be redefined.
%
%    \begin{macrocode}
\def\enddoc@text{
  \ifx\@empty\addresses\else \@setaddresses\fi
}
%    \end{macrocode}
% \Finale
\endinput
