On Feb 8, 2009, at 01:45 , Eelco wrote:

> I was wondering is there a ruby written ruby interpreter available?  
> somehow i`d like to be able to read the interpreter source.

no, not 100% (yet) at least. the rubinius project is farthest along in  
that effort.

   http://rubini.us/

the doco on that site is... well... not good. Just download the source  
and poke around. There is a fair amount in C++ still (last I looked)  
but a lot more pure ruby code than available in MRI or any other ruby  
impl project (last I looked).