Jecel Assumpcao Jr. wrote:
> 
[snipped discussion of syntax]
> 
> You are free to write expressions like
> 
>            7 <==@==> 9
> 
> as long as you define a #<==@==> method for numbers. And you can write
> 
>          'hello' + 'world'
> 
> by defining a #+ method for String (or Collection even).
> 

Which reminds me, how and when did the numeric protocol get into
String?  I did '123' + '456' and got '579'.  Is that a good Idea?

Cheers,
John