[lltx] luamplib (a nil value)

[Arno Trautmann]

Sorry, forgot to cc to list:

Manuel Pégourié-Gonnard wrote:
> Le 25/12/2010 14:38, Arno Trautmann a écrit :
>> I can only guess that luamplib.lua tries to access
>> luatexbase.module_term('luamplib', format(...))
>> in line 77. I guess further this should be defined in luatexbase, but is
>> not.
> 
> You're guessing right. Sorry for missing that. I'll publish an update soon.
> 
> As a temporary workaround,
> 
> function luatexbase.module_term(_, s)
>     texio.write_nl('term', s)
> end

Thanks, that seems to fix the problem on the TeX-side. But now I get an
error from MetaPost, see below. Am I doing something wrong with this
document?

————

\documentclass{minimal}
\usepackage{luamplib}

\directlua{
function luatexbase.module_term(_, s)
    texio.write_nl('term', s)
end
}

\begin{document}
\begin{mplibcode}
\end{mplibcode}
\end{document}

————

This is MetaPost, Version 1.503
 (plain.mp
>> $Id
! Isolated expression.
<to be read again>
                   :
l.1  $Id:
          plain.mp,v 1.3 2005/04/28 06:45:21 taco Exp $
! Extra tokens will be flushed.
<to be read again>
                   :
l.1  $Id:
          plain.mp,v 1.3 2005/04/28 06:45:21 taco Exp $
>> base_name
>> "plain"
! Equation cannot be performed (numeric=string).
<to be read again>
                   ;
l.8 ...base_name, base_version; base_name="plain";
                                                   base_version="1.004";
>> base_version
>> "1.004"
! Equation cannot be performed (numeric=string).
<to be read again>
                   ;
l.8 ...n; base_name="plain"; base_version="1.004";

>> "Preloading the plain mem file, version "
>> base_version
! Not implemented: (string)&(unknown numeric).
<to be read again>
                   ;
l.10 ...he plain mem file, version "&base_version;

>> base_version
! Not a string.
<to be read again>
                   ;
l.10 ...he plain mem file, version "&base_version;

)
! Attempt to close the bottom level file!.
l.576 defaultpen := savepen;



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