[luatex] Luatex primitive names

[Ulrike Fischer]

Am Tue, 10 Mar 2009 11:09:14 +0100 schrieb Hans Hagen:

>>>> Btw, extra care should be taken while writing code that should be portable:
>>>> - across different version of LuaTeX
>>>> - across different TeX engines.
>>> For that, I assume it would be better if luatex exposed \luatexversion
>>> by default also? Fine by me, just make up your collective mind and let
>>> me know if that makes more sense.
>> 
>> I think that \luatexversion should be enabled by default. 
 
> for a short while we considered it but it contradicts the fact that we 
> want to start up as tex82 and settled on only \directlua

Yes, enabling \luatexversion is not so clean and consistent. But I
like the idea to have a simple and reliable command to identify the
engine. This would avoid problems like the one we got with faulty
\pdfoutput-tests. 



-- 
Ulrike Fischer