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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% longdiv.4ht 2009-04-14-17:07 %
% Copyright (C) 2002--2009 Eitan M. Gurari %
% %
% This work may be distributed and/or modified under the %
% conditions of the LaTeX Project Public License, either %
% version 1.3c of this license or (at your option) any %
% later version. The latest version of this license is %
% in %
% http://www.latex-project.org/lppl.txt %
% and version 1.3c or later is part of all distributions %
% of LaTeX version 2005/12/01 or later. %
% %
% This work has the LPPL maintenance status "maintained".%
% %
% This Current Maintainer of this work %
% is Eitan M. Gurari. %
% %
% If you modify this program your changing its signature %
% with a directive of the following form will be %
% appreciated. %
% \message{signature} %
% %
% gurari@cse.ohio-state.edu %
% http://www.cse.ohio-state.edu/~gurari %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\immediate\write-1{version 2009-04-14-17:07}
\def\longdiv#1#2{{%
\def\showdig{\edef\temp{&{\the\scratch}}\temp\cr
&{\the\rtot}\cr}%
\global\rtot=#1\relax
\count0=\rtot\divide\count0by#2\edef\quotient{\the\count0}%
\def\temp##1{\ifx##1\temp\else \noexpand\dodig ##1\expandafter\temp\fi}%
\edef\routine{\expandafter\temp\quotient\temp}%
\def\dodig##1{\global\multiply\gpten
by10\relax}\global\gpten=1\relax\routine
\def\dodig##1{\global\divide\gpten by10\relax
\scratch =\gpten
\multiply\scratch by##1\relax
\multiply\scratch by#2\relax
\global\advance\rtot-\scratch \relax
\ifnum\scratch>0 \showdig \fi
}%
\a:longdiv \long:div{#2}\b:longdiv
}}
\catcode`\#=13
\catcode`\@=6
\def\long:div@1{\halign{#&#\cr
&\quotient\cr
@1&\the\rtot\cr
\routine \cr
}}
\catcode`\#=6
\catcode`\@=11
\NewConfigure{longdiv}{2}
\Hinput{longdiv}
\endinput
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