% ALGORITHMIC STYLE -- Released 5 May 1994
%    for LaTeX version 2e
% Copyright -- 1994 Peter Williams
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{algorithmic}
\typeout{Document Style `algorithmic' - environment}
%
\RequirePackage{ifthen}
\newboolean{ALC@noend}
\setboolean{ALC@noend}{false}
%
\DeclareOption{noend}{\setboolean{ALC@noend}{true}}
%
\ProcessOptions
%
% ALGORITHMIC
%
\newenvironment{algorithmic}{
  \newenvironment{ALC@g}{
    \begin{list}{}{\itemsep\z@ \itemindent\z@ \listparindent\z@
    \topsep\z@ \partopsep\z@ \parskip\z@\parsep\z@
    \leftmargin 1em}\item[]
  }
  {\end{list}}
  \newenvironment{ALC@if}{\begin{ALC@g}}{\end{ALC@g}}
  \newenvironment{ALC@for}{\begin{ALC@g}}{\end{ALC@g}}
  \newenvironment{ALC@whl}{\begin{ALC@g}}{\end{ALC@g}}
  \newenvironment{ALC@loop}{\begin{ALC@g}}{\end{ALC@g}}
  \newenvironment{ALC@rpt}{\begin{ALC@g}}{\end{ALC@g}}
  \renewcommand{\\}{\@centercr}
  \newcommand{\IF}[1]{\mbox{\bf if }##1 \mbox{\bf then}\begin{ALC@if}}
  \newcommand{\ELSE}{\end{ALC@if}\mbox{\bf else}\begin{ALC@if}}
  \newcommand{\ELSIF}[1]{\end{ALC@if}\mbox{\bf else if }##1 \mbox{\bf then}\begin{ALC@if}}
  \newcommand{\FOR}[1]{\mbox{\bf for }##1 \mbox{\bf do}\begin{ALC@for}}
  \newcommand{\FORALL}[1]{\mbox{\bf for all }##1 \mbox{\bf do}\begin{ALC@for}}
  \newcommand{\WHILE}[1]{\mbox{\bf while }##1 \mbox{\bf do}\begin{ALC@whl}}
  \newcommand{\LOOP}{\mbox{\bf loop}\begin{ALC@loop}}
  \newcommand{\REPEAT}{\mbox{\bf repeat}\begin{ALC@rpt}}
  \newcommand{\UNTIL}[1]{\end{ALC@rpt}\mbox{\bf until }##1\@centercr}
  \ifthenelse{\boolean{ALC@noend}}{
    \newcommand{\ENDIF}{\end{ALC@if}}
    \newcommand{\ENDFOR}{\end{ALC@for}}
    \newcommand{\ENDWHILE}{\end{ALC@whl}}
    \newcommand{\ENDLOOP}{\end{ALC@loop}}
  }{
    \newcommand{\ENDIF}{\end{ALC@if}\mbox{\bf end if}\@centercr}
    \newcommand{\ENDFOR}{\end{ALC@for}\mbox{\bf end for}\@centercr}
    \newcommand{\ENDWHILE}{\end{ALC@whl}\mbox{\bf end while}\@centercr}
    \newcommand{\ENDLOOP}{\end{ALC@loop}\mbox{\bf end loop}\@centercr}
  } 
  \renewcommand{\@toodeep}{}
  \begin{list}{}{%
    \itemsep\z@ \itemindent\z@ \listparindent\z@%
    \partopsep\z@ \parskip\z@ \parsep\z@%
    \leftmargin 1em \topsep 0.2em%
  }\item[]
}
{\end{list}}