[darcs-users] applying changes via patch files?

[Lev Lvovsky]

this is a newbie question:

My co-worker recently turned me onto editting diff files via emacs  
(I'm a vim user), wherein you can delete/add/split hunks and emacs'll  
do the patch math for you.  His prescription for applying the patch  
subsequently involves checking out the repository to another  
directory, applying the patch to the file, and then recording - is  
there any way to record without this laster intermediate step?   
Meaning, is there a way to just feed darcs a patch file?

Also, if any vim users out there have suggestions on how I can  
recreate this emacs behavior (specifically being able to split/delete  
hunks), PLEASE let me know - this is a REALLY useful feature for vim  
darcs users....

thanks!
-lev