[Pharo-users] Modify AST to send a message on Character nodes

[Julien Delplanque]

Hi everyone,

I would like to modify the AST of a smalltalk expression compiled to 
automatically send a certain message
when a node represents a Character (so the user does not have to write 
the message sending explicitly).
I would of course add a special button in the menu you get when right 
clicking in a playground so the user
knows it is a "special" do-it...
For example:
    $a.
would transform into an ast that the source code looks like
    $a aMessage

How can I do this? :)

Julien