%
% anonymize.sty
%

%\NeedsTeXFormat{LaTeX2e}
%\ProvidesPackage{anonymize}[2007/05/21]

\usepackage{ifthen}
\newboolean{@reviewcopy} 
\newboolean{@draftmode}
                       
\DeclareOption{draft}{\setboolean{@draftmode}{true}}
\DeclareOption{submission}{\setboolean{@reviewcopy}{true}}
\DeclareOption{final}{\setboolean{@reviewcopy}{false}}
\ProcessOptions

%
% Draft
% 

\newcommand{\tdd@padding}[1]{%
  \ifnum #1<10{0}\fi%
  #1%
}      
  

\newcount\tdd@hour
\newcount\tdd@minute
     
\newcommand{\timestamp}{%
  % adapted from http://www.tug.org/pipermail/texhax/2002-April/000063.html
  \tdd@hour=\time%
  \tdd@minute=\time%
  \divide \tdd@hour by 60%
  \divide \tdd@minute by 60%
  \multiply \tdd@minute by 60%
  \tdd@minute=-\tdd@minute%
  \advance \tdd@minute by \time%
  \tdd@padding{\the\tdd@hour}:\tdd@padding{\the\tdd@minute}%
}

\ifthenelse{\boolean{@draftmode}}
{
\renewcommand{\@oddhead}{%
   \hskip1cm{\today{} \timestamp}\hfil%
   {\Large\textbf{DRAFT}}\hfil%
   {Do not cite or distribute}\hskip1cm}
\renewcommand{\@evenhead}{\@oddhead}
}{}

%
% Anonymization
%   \anoncite
%   \anonfootnote
%   \anon
%
% You can also use the following construct for more complex changes, like this:
%     \ifthenelse{\boolean{@reviewcopy}}
%     {Acknowledgments section omitted for review copy.}
%     {We acknowledge Dr. A, Dr. B and Dr. C for helpful support with the
%      WizWoz system.}
%
                              
\ifthenelse{\boolean{@reviewcopy}}{
\newcommand{\anoncite}[1]{\cite{anonymous}}
}
{
\newcommand{\anoncite}[1]{\cite{#1}}
}           

\ifthenelse{\boolean{@reviewcopy}}{
\newcommand{\anonfootnote}[1]{\footnote{Footnote removed for review copy.}}
}
{
\newcommand{\anonfootnote}[1]{\footnote{#1}}
}

\ifthenelse{\boolean{@reviewcopy}}{
\newcommand{\anon}[1]{[anonymized]}
}
{
\newcommand{\anon}[1]{#1}}