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% This is prepictex.tex
% Version 1.1 9/10/87. See section 10 of the PiCTeX manual.
% Version 1.1b 2021-06-08 extended LaTeX support for picture environment
% LaTeX Project (with Michael Wichura's permission for the update)
% Support lengths in LaTeX picture mode coordinates in recent LaTeX.
% To use the PiCTeX macros under LaTeX, you first need to \input this
% file, then the main corpus of PiCTeX macros (pictex.tex), and then
% the file postpictex.tex. Do not \input the file latexpicobjs.tex.
\catcode`@=11 \catcode`!=11
% First of all, see if \fiverm is defined. If so do nothing;
% if not, let \fiverm take on meaning of LaTeX's \fivrm.
\expandafter\ifx\csname fiverm\endcsname\relax
\let\fiverm\fivrm
\fi
% Save meanings of LaTeX keywords that duplicate PiCTeX keywords
\let\!latexendpicture=\endpicture
\let\!latexframe=\frame
\let\!latexlinethickness=\linethickness
\let\!latexmultiput=\multiput
\let\!latexput=\put
% Redefine the LaTeX \@picture macro
% 2021-06-08 Adjust so working for old and new LaTeX releases
\let\!latex@picture\@picture
\def\@picture(#1,#2)(#3,#4){%
\!latex@picture(#1,#2)(#3,#4)%
\let\endpicture=\!latexendpicture
\let\frame=\!latexframe
\let\linethickness=\!latexlinethickness
\let\multiput=\!latexmultiput
\let\put=\!latexput
\ignorespaces}
\catcode`@=12 \catcode`!=12
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