\ProvidesPackage{labels}[20001/02/26 v3.0]

\newcommand{\Ref}[2]{%
    \expandafter\ifx\csname pr@#1\endcsname\relax%
    \PackageWarning{labels}{Reference format #1\space undefined. Making a default definition}%
    #1~\ref{#2}%
      \newRef{#1}{#1~\ref{#1:##1}}%
  \else%
    \csname pr@#1\endcsname{#2}%
  \fi%
}

\def\newRef#1#2{%
  \@namedef{pr@#1}##1{#2}}

\newcommand\eq[1]{\Ref{Equation}{#1}}
\newRef{Equation}{\textup{(\ref{Equation:#1})}}
\newRef{Lemma}{Lem.~\ref{Lemma:#1}}
\newRef{Theorem}{Thm.~\ref{Theorem:#1}}
\newRef{Definition}{Def.~\ref{Definition:#1}}
\newRef{Corollary}{Corr.~\ref{Corollary:#1}}
\newRef{Proposition}{Prop.~\ref{Corollary:#1}}
\newRef{Chapter}{Chap.~\ref{Chapter:#1}}
\newRef{Section}{Sec.~\ref{Section:#1}}
\newRef{Appendix}{App.~\ref{Appendix:#1}}
\newRef{Table}{Tab.~\ref{Table:#1}}
\newRef{Figure}{Fig.~\ref{Figure:#1}}
\newRef{Algorithm}{Alg.~\ref{Algorithm:#1}}
\newRef{Example}{Examp.~\ref{Example:#1}}






\def\NewDivision#1#2{%
    \expandafter
        \newcommand
            \csname%
                #1%
            \endcsname[2][\relax]%
        {%
            \lowercase{\csname#1\endcsname}{##2}%
            \ifx##1\relax 
                \label{#2:##2}
            \else
                \label{#2:##1}%
            \fi
        }%
}


\NewDivision{Chapter}{Chapter}
\NewDivision{Section}{Section}
\NewDivision{Subsection}{Section}
\NewDivision{Subsubsection}{Section}

\let\Appendices=\appendix
\let\appendix=\section
\NewDivision{Appendix}{Appendix}




\def\NewClaim#1{
        \newenvironment{#1}[1]{%
            \lowercase{\begin{#1}}%
            \label{#1:##1}%
        }{\lowercase{\end{#1}}}
}


\NewClaim{Definition}
\NewClaim{Theorem}
\NewClaim{Lemma}
\NewClaim{Corollary}
\NewClaim{Proposition}
\NewClaim{Claim}
\NewClaim{Fact}
\NewClaim{Remark}
\NewClaim{Example}


\newenvironment{xFigure}[2][\relax]{%
    \begin{figure}%
            \ifx##1\relax 
                \def\MyLabel{}%
                \def\PutLabel{}%
            \else
                \def\MyLabel{{Figure:#1}}%
                \def\PutLabel{\label{Figure:#1}}%
            \fi
        \def\MyCaption{#2}%
}{%
    \caption{\MyCaption.\PutLabel}%
    \end{figure}%
}

\def\NewFloat#1#2{%
\newenvironment{#1}[2][\relax]{%
    \begin{#2}%
            \ifx##1\relax 
                \def\MyLabel{}%
                \def\PutLabel{}%
            \else
           \def\MyLabel{{#1:##1}}%
        \def\PutLabel{\label{#1:##1}}%
            \fi
       \def\MyCaption{##2}%
}{%
   \caption{\MyCaption.\PutLabel}%
   \end{#2}%
}
}

\NewFloat{Table}{table}
\NewFloat{Algorithm}{algorithm}
\NewFloat{Figure}{figure}

\endinput


\newenvironment{nullenvironment}{}{}

\def\@@NewFloat#1#2#3#4#5{
% #1 <- old float name, e.g., "figure"
% #2 <- New Environment name, e.g., "Figure"
% #3 <- Environment Label Prefix, e.g. "Figure" to be used as \label{Figure:my.figure}
% #4 <- Short name to be used in refering to environment, e.g., "Fig."
% #5 <- Environment to wrap inside the old environment, e.g., "cpluplus", or nullenvironment
        \newenvironment{#2}[2]{%
            \begin{#1}[ht]%
            \def\MyLabel{#3:##1}
            \def\MyCaption{##2}
            \begin{#5}
        }{%
            \end{#5}%
            \caption{\MyCaption.}%
            \label{\MyLabel}%
            \vspace{-1ex}%
            \end{#1}%
        }%
    \expandafter
        \def
            \csname
                ref#3%
            \endcsname##1%
        {%
            #4~\ref{#3:##1}%
        }
}

\def\refTable#1{Table~\ref{Table:#1}}
\newenvironment{Table}[2]{%
    \begin{table}%
        \def\MyLabel{Table:#1}%
        \def\MyCaption{#2}%
}{%
        \caption{\MyCaption.}%
        \label{\MyLabel}%
    \end{table}%
}

\def\@@NewFloatFigure#1#2#3#4#5{
        \newenvironment{#2}[2]{%
            \begin{#1}%
            \def\MyLabel{#3:##1}
            \def\MyCaption{##2}
            \begin{#5}
        }{%
            \end{#5}%
            \caption{\MyCaption.}%
            \label{\MyLabel}%
            \vspace{-1ex}%
            \end{#1}%
        }%
    \expandafter
        \def
            \csname
                ref#3%
            \endcsname##1%
        {%
            #4~\ref{#3:##1}%
        }
}

\def\@@NestedEnvironment{nullenvironment}

\def\NewFloat#1#2{\lowercase{\@@NewFloat{#1}}{#1}{#1}{#2}{\@@NestedEnvironment}}

\NewFloat{Figure}{Fig.}


\newenvironment{CPLUSPLUS}[2]{
    \def\@@NestedEnvironment{cplusplus}
    \Figure{#1}{#2}
}{
    \endFigure
}

\newenvironment{myfloatingfigure}{%
    \floatingfigure{0.5\columnwidth}%
}{%
    \endfloatingfigure
}


\newenvironment{EPS}{%
        \begin{centering}%
        \def\@temp##1{\expandafter\@@temp##1]}
        \def\@@temp{\includegraphics[}
        \hbox to \columnwidth{%
            \hfil
                \@temp\IncludeGraphicsParameters
                    {\EncapsulatedPostScriptFileName}%
            \hfil
            }%\\
}{%
        \end{centering}
}

\newenvironment{FEPS}{%
        \begin{centering}%
        \def\@temp##1{\expandafter\@@temp##1]}
        \def\@@temp{\includegraphics[}
%       \hbox to 0.0\columnwidth{%
%           \hfil
                \@temp\IncludeGraphicsParameters
                    {\EncapsulatedPostScriptFileName}%
%           \hfil
%           }%\\
}{%
        \end{centering}
}



\@@NewFloat{figure}{EpsFigure}{Figure}{Fig.}{EPS}
\@@NewFloatFigure{myfloatingfigure}{FEPSFigure}{Figure}{Fig.}{FEPS}

\newcommand{\PSFIGURE}[3][width=\columnwidth]{
    \begingroup
    \def\EncapsulatedPostScriptFileName{#2.eps}
    \def\IncludeGraphicsParameters{#1}
    \EpsFigure{#2}{#3}
    \endEpsFigure
    \endgroup
}

\newcommand{\FEPSFIGURE}[3][width=0.5\columnwidth]{
    \begingroup
    \def\EncapsulatedPostScriptFileName{#2.eps}
    \def\IncludeGraphicsParameters{#1}
    \FEPSFigure{#2}{#3}
    \endFEPSFigure
    \endgroup
}


\newlength{\@mycaptionwidth}%
\long\def\@makecaption#1#2{{%
   \vskip 0\p@%
   %\vspace{-0.5ex}%
   \setbox\@tempboxa\hbox{{\small #1:~#2}}%
   \ifdim \wd\@tempboxa >\hsize {%
        \setbox\@tempboxa\hbox{\small #1:\ }%
        \setlength{\@mycaptionwidth}{\hsize}%
        \addtolength\@mycaptionwidth{-\wd\@tempboxa}%
        \mbox{{\small #1:\ }}\parbox[t]{\@mycaptionwidth}{#2}%
     } \else
       \hbox to\hsize{\hfil\box\@tempboxa\hfil}%
   \fi
}}

%       {\noindent \small #1:~#2}\par








%\renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
%                                     {-1ex\@plus -1ex \@minus -.2ex}%
%                                     {1.5ex \@plus .2ex}%
%%                                     {\normalfont\bfseries}}