some quetsions about features and plugins

["Marleine Daoud" <marleine gmail com>]

Dear Responsible,

I would like to develop a plugin for Dia that would explore diagrams with the help of filtering, highlighting and searching shapes based on certain attributes, and also another plugin for    comparing diagrams and versioning diagrams like it is done in svn for example. 

Can you please inform me if this can be possible with Dia  or not?

Also is there a clear list with all the features currently in Dia and all the future plans?

Thank you,
-- 
Marleine Daoud
http://marleine.blogspot.com/