Re: Metaerror?

[Hans Hagen <pragma@wxs.nl>]

At 01:40 PM 9/14/00 +0100, Marc van Dongen wrote:

>Also I noticed you use btex etex which doesn't
>work properly with me. In stead I am using the
>code appended below which I shamelessly stole
>and adapted from

btex .. etex returns a picture picked up from a file generated by a bunch
of mp tools. 

>http://www.mathp7.jussieu.fr/~zoonek/LaTeX/Metapost/metapost.html 
>
>You can use this macro and play sexy games like:
> .....
> counter := 3;
> boxit.ctr( LATEX( "The value of counter is "
>                 & decimal( counter )
>                 & ". Cool no?"
>                 )
>           );
>
>Perhaps context's btex and etex work fine---I

it's metapost's btex etex btw

>vardef LATEX primary s =
>   write "verbatimtex"                    to "mptextmp.mp";
>   write "\documentclass[12pt]{article}"  to "mptextmp.mp";
>   write "\usepackage[T1]{fontenc}"       to "mptextmp.mp";
>   write "\usepackage{amsmath,amssymb}"   to "mptextmp.mp";
>   write "\begin{document}"               to "mptextmp.mp";
>   write "etex"                           to "mptextmp.mp";
>   write "btex "&s&" etex"                to "mptextmp.mp";
>   write EOF                              to "mptextmp.mp";
>   scantokens "input mptextmp"
>enddef;

This is not needed in context since it saves environments and additional
data already. Also, this macro is rather hard coded -) 

see metafun manual: 

\startMPenvironment 
  \setupbodyfont[pos,12pt]
\stopMPenvironment 

So, for string composition purposes, one may define: 

vardef TEX primary s = 
  write "btex " &s " etex" & EOF to "mptextmp.mp" ;
  scantokens "input mptextmp"  
enddef ;  

But there are easier ways I think. 

Btw, i'm thinking of a different mechanism which permits making macros with
embedded btex/etex things, 

Hans

Hans

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