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%% Save file as: MULTICOLPAR.STY Source: FILESERV@SHSU.BITNET
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% File multicolpar.sty
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% by
% Mauro Orlandini <orlandini@lheavx.gsfc.nasa.gov>
% Modified by Max Hailperin <max@nic.gac.edu>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% This LaTeX style, writes different paragraphs in different columns
% the number of columns is free), as
% This is the first paragraph | This is the second paragraph and its
% and text follows... | own text follows...
%
% This is the third paragraph | This is the fourth paragraph...
% and text follows... |
%
% This format is useful for translated articles, in which there is the
% original language in the first column and the translated version in
% the second.
%
% Usage: \begin{multicolpar}{N}
% ... text ...
% \end{multicolpar}
%
% where N is the number of columns in which the text will be displayed.
% Warning: Inside the environment, each blank line (ie a \par) will correspond
% to a paragraph, therefore do not leave blank lines soon after the
% \begin{multicolpar}{N} command and soon before the \end{multicolpar}
% command (unless you want so).
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newenvironment{multicolpar}[1]{\begin{trivlist}\item[]%
\multicolumnparallelparagraphs{#1}{2em}}%
{\endmulticolumnparallelparagraphs\end{trivlist}}
\newcount\columnsleft \newcount\totalcolumns \newdimen\separation
\def\multicolumnparallelparagraphs#1#2{%
\hbadness5000 \vbadness9999 \tolerance9999
\totalcolumns=#1 \separation=#2 \let\xpar=\par
\vskip\parskip
\columnsleft=#1\relax
\hbox to\hsize\bgroup
\let\par\nextmulticolumnparallelparagraph
\dimen0=#2\advance\hsize-\columnsleft\dimen0 \advance\hsize\dimen0
\divide\hsize\columnsleft\relax
\vtop\bgroup}
\def\nextmulticolumnparallelparagraph{%
\egroup
\advance\columnsleft-1
\ifnum\columnsleft>0
\hfil\vtop\bgroup
\else
\egroup
\xpar\vskip\baselineskip\xpar
\multicolumnparallelparagraphs\totalcolumns\separation
\fi}
\def\endmulticolumnparallelparagraphs{%
\egroup
\advance\columnsleft-1
\ifnum\columnsleft>0
\hfil\vtop\bgroup\hbox to \hsize{}
\endmulticolumnparallelparagraphs
\else
\egroup
\xpar
\fi}
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