Hi,

just something to think about: one thing I always liked about Smalltalk is that 
it allows for nice DSL's. We have nice things 
like a unit framework in Pharo, ... 

In the most simple case one can easily implement own units just by providing a 
unary messages:

 1 m 
 1 second
 1 px
 1 EUR   

One can easily implement an own Money class with a currency and then do 
polymorphic tricks like

  10 EUR + 20 EUR 

But we can currently can not implement special unary selectors (including 
special unary selectors with unicode) like:

  100 %
  20 $
  40 €  
  12 ‰  (for promille)

Especially things like 20 % would be nice for layout issues or other (Bloc 
comes to mind).

Maybe we should put that on the roadmap of Pharo because IMHO it would be cool 
to support such things in the
future. Dont know how much effort it currently means on the technical level but 
maybe others can comment.

Thx
T.

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