Skipping function parameters with default value

[tcak via Digitalmars-d]

Does D has an aim to be convertible back to C code easily?
I want to define a function as follows:

mysqlConnect( string host="localhost", string username, string 
password=null );


I was expecting that I could call the function as follows:

mysqlConnect( , "root" );

But, it neither allows me to define the function in that way, or 
allows me to call the function in that way even if I give a 
default value to username parameter. Would it be possible to 
allow a syntax as above?

This could open the doors to set parameters by giving parameter 
name as well.