[metapost] Embedded METAPOST source?

[Karel]

Wolfgang Schuster napsal(a):
> Am 16.05.10 18:52, schrieb Karel:
>>> Is it possible to include the .mp source directly in the .tex file? 
>>> And have it "just work"?
>>
>> It is possible when using luaTeX:-)
> 
> You don't need LuaTeX, ConTeXt can use inline MetaPost graphics also with
> pdfTeX and XeTeX. For LaTeX there is AFAIK the mfpicture package with
> the same function.
> 
> Wolfgang

Ahh, sorry, you are right in some sense, but only luatex does it 
really directly without writing and reading separate files...

karel