[metapost] Problem using LaTeX in MetaPost

[Carlos Mallen]

Hi,

I'm using MiKTeX version 2.9 and MetaPost version 1.504. I'm no longer able to use LaTeX in MetaPost. The file

verbatimtex
%&latex
\documentclass{article}
\begin{document}
etex

input latexMP;

filenametemplate "%j-%3c.mps";

beginfig(1);

  draw (0, 0)--(150, 150);
  label(btex $A$ etex, (0, 0));
  show mpversion;

endfig;

verbatimtex
\end{document}
etex

end


fails because LaTeX commands aren't recognized. The error file is

This is TeX, Version 3.1415926 (MiKTeX 2.9) (preloaded format=tex 2012.2.7)  7 FEB 2012 10:28
**mp632087.tex
(C:\Personal\MetaPost-Manual\1.005\Graphics\mp632087.tex
! Undefined control sequence.
l.2 \documentclass
                  {article}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Undefined control sequence.
l.3 \begin
          {document}
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

[1] [1] )
Output written on mp632087.dvi (2 pages, 340 bytes).

What should I do?
 
Carlos Mallén
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