Parenthesis padding with plugin Source Formatter

[Folco]

Hi,


I can't configure the Source Formatter Plugin to get the behavior I expect. An image will help to understand easily :



As you see, I wouldn't want a space between parenthesis on the outside only if the previous or the next char is NOT another parenthesis.
I get the correct behavior for closing parenthesis, but I can't get it for opening ones.

Here is ma configuration :

Perhaps I misunderstood some options ?

Thanks for the help. 

[Folco]

Nobody has an idea ?
At least, could you teel me if my configuration is wrong regarding to what I expect, or if it could be a bug, so I would try to investigate in the code ? Thanks in advance.