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algorithmic.sty
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algorithmic.sty
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% ALGORITHMIC STYLE -- Released 8 APRIL 1996
% for LaTeX version 2e
% Copyright -- 1994 Peter Williams
% E-mail PeterWilliams@dsto.defence.gov.au
\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{algorithmic}
\typeout{Document Style `algorithmic' - environment}
%
\RequirePackage{ifthen}
\RequirePackage{calc}
\newboolean{ALC@noend}
\setboolean{ALC@noend}{false}
\newcounter{ALC@line}
\newcounter{ALC@rem}
\newlength{\ALC@tlm}
%
\DeclareOption{noend}{\setboolean{ALC@noend}{true}}
%
\ProcessOptions
%
% ALGORITHMIC
\newcommand{\algorithmicinput}{\textbf{Input:}}
\newcommand{\algorithmicoutput}{\textbf{Output:}}
\newcommand{\algorithmiccomment}[1]{\{#1\}}
\newcommand{\algorithmicend}{\textbf{end}}
\newcommand{\algorithmicif}{\textbf{if}}
\newcommand{\algorithmicthen}{\textbf{then}}
\newcommand{\algorithmicelse}{\textbf{else}}
\newcommand{\algorithmicelsif}{\algorithmicelse\ \algorithmicif}
\newcommand{\algorithmicendif}{\algorithmicend\ \algorithmicif}
\newcommand{\algorithmicfor}{\textbf{for}}
\newcommand{\algorithmicforall}{\textbf{for all}}
\newcommand{\algorithmicdo}{\textbf{do}}
\newcommand{\algorithmicendfor}{\algorithmicend\ \algorithmicfor}
\newcommand{\algorithmicwhile}{\textbf{while}}
\newcommand{\algorithmicendwhile}{\algorithmicend\ \algorithmicwhile}
\newcommand{\algorithmicloop}{\textbf{loop}}
\newcommand{\algorithmicendloop}{\algorithmicend\ \algorithmicloop}
\newcommand{\algorithmicrepeat}{\textbf{repeat}}
\newcommand{\algorithmicuntil}{\textbf{until}}
\def\ALC@item[#1]{%
\if@noparitem \@donoparitem
\else \if@inlabel \indent \par \fi
\ifhmode \unskip\unskip \par \fi
\if@newlist \if@nobreak \@nbitem \else
\addpenalty\@beginparpenalty
\addvspace\@topsep \addvspace{-\parskip}\fi
\else \addpenalty\@itempenalty \addvspace\itemsep
\fi
\global\@inlabeltrue
\fi
\everypar{\global\@minipagefalse\global\@newlistfalse
\if@inlabel\global\@inlabelfalse \hskip -\parindent \box\@labels
\penalty\z@ \fi
\everypar{}}\global\@nobreakfalse
\if@noitemarg \@noitemargfalse \if@nmbrlist \refstepcounter{\@listctr}\fi \fi
\sbox\@tempboxa{\makelabel{#1}}%
\global\setbox\@labels
\hbox{\unhbox\@labels \hskip \itemindent
\hskip -\labelwidth \hskip -\ALC@tlm
\ifdim \wd\@tempboxa >\labelwidth
\box\@tempboxa
\else \hbox to\labelwidth {\unhbox\@tempboxa}\fi
\hskip \ALC@tlm}\ignorespaces}
%
\newenvironment{algorithmic}[1][0]{
\let\@item\ALC@item
\newcommand{\ALC@lno}{%
\ifthenelse{\equal{\arabic{ALC@rem}}{0}}
{{\footnotesize \arabic{ALC@line}:}}{}%
}
\let\@listii\@listi
\let\@listiii\@listi
\let\@listiv\@listi
\let\@listv\@listi
\let\@listvi\@listi
\let\@listvii\@listi
\newenvironment{ALC@g}{
\begin{list}{\ALC@lno}{ \itemsep\z@ \itemindent\z@
\listparindent\z@ \rightmargin\z@
\topsep\z@ \partopsep\z@ \parskip\z@\parsep\z@
\leftmargin 1em
\addtolength{\ALC@tlm}{\leftmargin}
}
}
{\end{list}}
\newcommand{\ALC@it}{\addtocounter{ALC@line}{1}\addtocounter{ALC@rem}{1}\ifthenelse{\equal{\arabic{ALC@rem}}{#1}}{\setcounter{ALC@rem}{0}}{}\item}
\newcommand{\ALC@com}[1]{\ifthenelse{\equal{##1}{default}}%
{}{\ \algorithmiccomment{##1}}}
\newcommand{\INPUT}{\item[\algorithmicinput]}
\newcommand{\OUTPUT}{\item[\algorithmicoutput]}
\newcommand{\STATE}{\ALC@it}
\newcommand{\COMMENT}[1]{\algorithmiccomment{##1}}
\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}[2][default]{\ALC@it\algorithmicif\ ##2\ \algorithmicthen%
\ALC@com{##1}\begin{ALC@if}}
\newcommand{\ELSE}[1][default]{\end{ALC@if}\ALC@it\algorithmicelse%
\ALC@com{##1}\begin{ALC@if}}
\newcommand{\ELSIF}[2][default]%
{\end{ALC@if}\ALC@it\algorithmicelsif\ ##2\ \algorithmicthen%
\ALC@com{##1}\begin{ALC@if}}
\newcommand{\FOR}[2][default]{\ALC@it\algorithmicfor\ ##2\ \algorithmicdo%
\ALC@com{##1}\begin{ALC@for}}
\newcommand{\FORALL}[2][default]{\ALC@it\algorithmicforall\ ##2\ %
\algorithmicdo%
\ALC@com{##1}\begin{ALC@for}}
\newcommand{\WHILE}[2][default]{\ALC@it\algorithmicwhile\ ##2\ %
\algorithmicdo%
\ALC@com{##1}\begin{ALC@whl}}
\newcommand{\LOOP}[1][default]{\ALC@it\algorithmicloop%
\ALC@com{##1}\begin{ALC@loop}}
\newcommand{\REPEAT}[1][default]{\ALC@it\algorithmicrepeat%
\ALC@com{##1}\begin{ALC@rpt}}
\newcommand{\UNTIL}[1]{\end{ALC@rpt}\ALC@it\algorithmicuntil\ ##1}
\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}\ALC@it\algorithmicendif}
\newcommand{\ENDFOR}{\end{ALC@for}\ALC@it\algorithmicendfor}
\newcommand{\ENDWHILE}{\end{ALC@whl}\ALC@it\algorithmicendwhile}
\newcommand{\ENDLOOP}{\end{ALC@loop}\ALC@it\algorithmicendloop}
}
\renewcommand{\@toodeep}{}
\begin{list}{\ALC@lno}{\setcounter{ALC@line}{0}\setcounter{ALC@rem}{0}%
\itemsep\z@ \itemindent\z@ \listparindent\z@%
\partopsep\z@ \parskip\z@ \parsep\z@%
\labelsep 0.5em \topsep 0.2em%
\ifthenelse{\equal{#1}{0}}
{\labelwidth 0.5em }
{\labelwidth 1.2em }
\leftmargin\labelwidth \addtolength{\leftmargin}{\labelsep}
\ALC@tlm\labelsep
}
}
{\end{list}}