% 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