Brian Rice wrote:
> Slate uses a language extension called optional keywords for this, where 
> any message-send may pass along a number of &-prefixed keywords (read & 
> as "with") and then ordinary expressions to override any defaults for 
> auxiliary inputs. Each method can then define auxiliary inputs which it 
> responds to and which can have default expressions to initialize them. 

looks like lisp syntax...

> The auxiliary keywords can be passed in any order or combination. One 
> tiny annoyance is that adding keywords to any message-send raises its 
> arity to keyword-level instead of just binary or unary.
> 
> It's an idea; don't know if you'll like it. We have gradually 
> incorporated them more and more into the libraries and it has a pleasant 
> effect on the protocols.
> 

it could be exactly what I'm looking for. is this difficult to implement 
in a current Squeak image ?


regards,

Stef