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% altxext.sty
% patches for LaTeX in arabic mode
% for use with arabart.cls
% ArabTeX 3.11
% 04.05.2003
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% (c) Klaus Lagally
%     Institut fuer Informatik
%     Universitaet Stuttgart
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\a@ident {altxext.sty} {3.11 LaTeX extensions for Arabic mode} {04.05.2003}

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\def \a@outputdblcol {% part of output routine for Arabic mode
\if@firstcolumn \global\@firstcolumnfalse
	\global\setbox\@leftcolumn \box\@outputbox
\else \global\@firstcolumntrue
	\setbox\@outputbox \vbox {\hbox to\textwidth {%
		\hskip \columnwidth
		\hfil \vrule width\columnseprule \hfil
		\hbox to\columnwidth {\box\@leftcolumn \hss}%
		\hskip -\textwidth
		\hbox to\columnwidth{\box\@outputbox \hss}%
		\hskip \columnsep
		\hskip \columnwidth }}%
	\@combinedblfloats \@outputpage 
	\begingroup \@dblfloatplacement \@startdblcolumn
	\@whilesw\if@fcolmade \fi
	{\@outputpage \@startdblcolumn }\endgroup
\fi}
 
\let \@outputdblcol \a@outputdblcol % for Arabic mode

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\def \a@addmarginpar {% part of output routine for Arabic mode
\@next \@marbox \@currlist 
{\@cons\@freelist\@marbox \@cons\@freelist\@currbox}\@latexbug 
\@tempcnta \m@ne
\if@twocolumn
       	\if@firstcolumn \@tempcnta \@ne \fi
\else  \if@mparswitch
		\ifodd \c@page \else \@tempcnta \@ne \fi
	\fi
       	\if@reversemargin \@tempcnta -\@tempcnta \fi
\fi
\ifnum \@tempcnta < \z@  
	\global\setbox\@marbox \box\@currbox 
\fi
\@tempdima \@mparbottom \advance\@tempdima -\@pageht
\advance\@tempdima \ht \@marbox 
\ifdim \@tempdima > \z@
       	\@@warning {Marginpar on page \thepage\space moved}%
\else \@tempdima \z@ 
\fi
\global\@mparbottom \@pageht 
\global\advance\@mparbottom \@tempdima
\global\advance\@mparbottom \dp\@marbox
\global\advance\@mparbottom \marginparpush
\advance\@tempdima -\ht\@marbox
\global\ht\@marbox \z@ \global\dp\@marbox \z@
\vskip -\@pagedp \vskip\@tempdima \nointerlineskip
\hbox to\columnwidth 
	{\ifnum \@tempcnta > \z@
       		\hskip\columnwidth \hskip\marginparsep
	\else 	\hskip -\marginparsep \hskip -\marginparwidth 
	\fi   	\box\@marbox \hss}%
\nobreak   %% RmS 91/06/21 \nobreak added
\vskip -\@tempdima \nointerlineskip
\hbox {\vrule \@height\z@ \@width\z@ \@depth\@pagedp }}

\let \@addmarginpar \a@addmarginpar % for Arabic mode

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\def\markright#1{{\let\protect\noexpand
     \let\label\relax \let\index\relax \let\glossary\relax
     \expandafter\@markright\@themark
     {#1}\mark{\@themark}}\if@nobreak\ifvmode\nobreak\fi\fi}
 
\def\@markright#1#2#3{\gdef\@themark{{#1}{#3}}}

\def \markleft #1{{\let\protect\noexpand
\let\label\relax \let\index\relax \let\glossary\relax
\expandafter\@markleft \@themark {#1}%
\mark {\@themark }}%
\if@nobreak \ifvmode \nobreak \fi \fi }
 
\def \@markleft #1#2#3{\gdef\@themark {{#3}{#2}}}

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\UsePackage {alists} % load LaTeX extensions for Arabic lists
\UsePackage {asect} % load LaTeX extensions for Arabic sections
\UsePackage {atabg} % load LaTeX extensions for Arabic tabbing

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\endinput
